/**
 * ProofPick Theme Styles - Modern Design System
 * Inspired by Yozi and idealo design patterns
 * Mobile-first responsive design
 * Monochrome-based color scheme with minimal accents
 */

/* ============================================
   DESIGN TOKENS (CSS Variables)
   ============================================ */
:root {
    /* Colors - Modern palette inspired by major platforms */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-bg-tertiary: #f1f3f5;
    --color-bg-overlay: rgba(0, 0, 0, 0.6);
    
    --color-text-primary: #0d1117;
    --color-text-secondary: #656d76;
    --color-text-tertiary: #8b949e;
    --color-text-inverse: #ffffff;
    
    --color-border-primary: #d1d9e0;
    --color-border-secondary: #e1e4e8;
    --color-border-focus: #0969da;
    
    /* Brand Colors - YouTube-inspired vibrant palette */
    --color-brand-primary: #ff0000;
    --color-brand-primary-hover: #cc0000;
    --color-brand-secondary: #1d4ed8;
    --color-brand-secondary-hover: #1e40af;
    
    /* Status Colors */
    --color-success: #16a34a;
    --color-success-light: #dcfce7;
    --color-warning: #d97706;
    --color-warning-light: #fef3c7;
    --color-error: #dc2626;
    --color-error-light: #fee2e2;
    --color-info: #0284c7;
    --color-info-light: #e0f2fe;
    
    /* Spacing Scale - 8px base unit */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
    
    /* Typography Scale */
    --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';
    --font-family-heading: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 30px;
    --font-size-4xl: 36px;
    --font-size-5xl: 48px;
    
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows - Netflix-inspired depth */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Transitions - Smooth animations */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Layout */
    --header-height: 64px;
    --header-height-mobile: 56px;
    --tabbar-height: 60px;
    --sidebar-width: 240px;
    --max-width: 1280px;
    --content-padding: var(--space-4);
    
    /* Z-index scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* Dark mode support (future) */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg-primary: #0d1117;
        --color-bg-secondary: #161b22;
        --color-bg-tertiary: #21262d;
        --color-text-primary: #f0f6fc;
        --color-text-secondary: #8b949e;
        --color-text-tertiary: #656d76;
        --color-border-primary: #30363d;
        --color-border-secondary: #21262d;
    }
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-text-primary);
    margin-bottom: var(--space-4);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--space-4);
    line-height: var(--line-height-relaxed);
}

a {
    color: var(--color-brand-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-brand-secondary-hover);
    text-decoration: underline;
}

a:focus-visible {
    outline: 2px solid var(--color-border-focus);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ============================================
   HEADER
   ============================================ */
.c-header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border-secondary);
    height: var(--header-height-mobile);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.c-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--content-padding);
    height: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    gap: var(--space-4);
}

.c-header__left {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
}

.c-header__menu-btn {
    width: 44px;
    height: 44px;
    border: none;
    background: transparent;
    color: var(--color-text-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.c-header__menu-btn:hover {
    background: var(--color-bg-secondary);
}

@media (min-width: 1024px) {
    .c-header__menu-btn {
        display: none;
    }
}

.c-header__logo {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.c-header__logo:hover {
    color: var(--color-brand-secondary);
    text-decoration: none;
}

.c-header__search-container {
    flex: 1;
    max-width: 600px;
    position: relative;
}

.c-header__search-form {
    width: 100%;
}

.c-header__search-bar {
    display: flex;
    align-items: center;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-full);
    overflow: hidden;
    transition: all var(--transition-base);
}

.c-header__search-bar:focus-within {
    border-color: var(--color-brand-secondary);
    box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.1);
}

.c-header__search-input {
    flex: 1;
    height: 44px;
    padding: 0 var(--space-4);
    border: none;
    background: transparent;
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    outline: none;
}

.c-header__search-input::placeholder {
    color: var(--color-text-tertiary);
}

.c-header__search-submit {
    width: 44px;
    height: 44px;
    border: none;
    background: transparent;
    color: var(--color-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.c-header__search-submit:hover {
    color: var(--color-brand-secondary);
    background: var(--color-bg-tertiary);
}

.c-header__search-suggestions {
    position: absolute;
    top: calc(100% + var(--space-2));
    left: 0;
    right: 0;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-height: 400px;
    overflow-y: auto;
    z-index: var(--z-popover);
}

.c-search-suggestions__columns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
    padding: var(--space-4);
}

.c-search-suggestions__header {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.c-search-suggestions__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.c-search-suggestion {
    padding: var(--space-3);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
    color: var(--color-text-primary);
    text-decoration: none;
    display: block;
}

.c-search-suggestion:hover,
.c-search-suggestion:focus {
    background: var(--color-bg-secondary);
    text-decoration: none;
    outline: none;
}

.c-search-suggestion--category {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

@media (max-width: 767px) {
    .c-search-suggestions__columns {
        grid-template-columns: 1fr;
    }
    
    .c-header__search-container {
        max-width: none;
    }
}

.c-header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-shrink: 0;
}

.c-header__action-btn {
    width: 44px;
    height: 44px;
    border: none;
    background: transparent;
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.c-header__action-btn:hover {
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

/* ============================================
   MAIN CONTENT AREA
   ============================================ */
.c-main {
    min-height: calc(100vh - var(--header-height-mobile) - var(--tabbar-height));
    padding-bottom: calc(var(--tabbar-height) + var(--space-6));
}

.c-main--pdp {
    padding: var(--content-padding);
    padding-bottom: calc(var(--tabbar-height) + 100px);
}

.c-main--archive {
    padding-top: 0;
}

/* ============================================
   HERO SECTION - Netflix-inspired
   ============================================ */
.c-hero {
    padding: var(--space-12) var(--content-padding);
    text-align: center;
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
    border-radius: var(--radius-xl);
    margin: var(--content-padding);
    margin-bottom: var(--space-8);
}

.c-hero--minimal {
    padding: var(--space-8) var(--content-padding);
    background: transparent;
    margin-bottom: var(--space-6);
}

.c-hero__title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
    line-height: var(--line-height-tight);
}

.c-hero__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

.c-hero__cta {
    display: inline-block;
    padding: var(--space-3) var(--space-6);
    background: var(--color-brand-secondary);
    color: var(--color-text-inverse);
    border-radius: var(--radius-lg);
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-base);
}

.c-hero__cta:hover {
    background: var(--color-brand-secondary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}

/* ============================================
   PRODUCT CARD - Amazon-inspired design
   ============================================ */
.c-card--offer {
    background: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    position: relative;
    border: 1px solid var(--color-border-secondary);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.c-card--offer:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-border-primary);
}

.c-card--offer__link {
    display: block;
    color: inherit;
    text-decoration: none;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.c-card--offer__image {
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--color-bg-secondary);
    position: relative;
}

.c-card--offer__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.c-card--offer:hover .c-card--offer__image img {
    transform: scale(1.05);
}

.c-card--offer__image--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);
}

.c-card--offer__countdown {
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);
    z-index: 10;
    background: rgba(220, 38, 38, 0.95);
    color: var(--color-text-inverse);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    backdrop-filter: blur(8px);
    min-width: 80px;
    text-align: center;
    box-shadow: var(--shadow-md);
}

.c-card--offer__countdown .c-countdown__label {
    display: block;
    font-size: 10px;
    opacity: 0.9;
    margin-bottom: 2px;
}

.c-card--offer__countdown .c-countdown__time {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
}

.c-card--offer__content {
    padding: var(--space-4);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.c-card--offer__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-3);
    line-height: var(--line-height-normal);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--color-text-primary);
    min-height: 2.5em;
}

.c-card--offer__badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.c-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-2);
    background: var(--color-info-light);
    color: var(--color-info);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
}

.c-badge--small {
    font-size: 10px;
    padding: 2px var(--space-1);
}

.c-badge--success {
    background: var(--color-success-light);
    color: var(--color-success);
}

.c-badge--warning {
    background: var(--color-warning-light);
    color: var(--color-warning);
}

.c-badge--error {
    background: var(--color-error-light);
    color: var(--color-error);
}

.c-card--offer__price {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.c-card--offer__conclusion {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-top: auto;
    padding-top: var(--space-3);
    border-top: 1px solid var(--color-border-secondary);
}

.c-card--offer__conclusion-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    flex: 1;
    min-width: 0;
}

.c-card--offer__conclusion-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: var(--font-weight-medium);
}

.c-card--offer__conclusion-value {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.c-card--offer__score {
    margin-top: var(--space-3);
}

.c-score {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    background: var(--color-success);
    color: var(--color-text-inverse);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    border-radius: var(--radius-md);
}

.c-score--small {
    font-size: var(--font-size-xs);
    padding: 2px var(--space-2);
}

.c-card--offer__actions {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border-secondary);
}

.c-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    text-decoration: none;
    min-height: 44px;
}

.c-btn--primary {
    background: var(--color-brand-secondary);
    color: var(--color-text-inverse);
}

.c-btn--primary:hover {
    background: var(--color-brand-secondary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}

.c-btn--go {
    flex: 1;
    background: var(--color-brand-secondary);
    color: var(--color-text-inverse);
    font-weight: var(--font-weight-semibold);
}

.c-btn--go:hover {
    background: var(--color-brand-secondary-hover);
    text-decoration: none;
}

.c-btn--secondary {
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-primary);
}

.c-btn--secondary:hover {
    background: var(--color-bg-tertiary);
    text-decoration: none;
}

.c-btn--block {
    display: block;
    width: 100%;
}

.c-btn--large {
    min-height: 52px;
    font-size: var(--font-size-lg);
    padding: var(--space-4) var(--space-6);
}

/* ============================================
   ARCHIVE HEADER
   ============================================ */
.c-archive-header {
    background: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border-secondary);
    padding: var(--space-6) var(--content-padding);
    position: sticky;
    top: var(--header-height-mobile);
    z-index: var(--z-sticky);
    box-shadow: var(--shadow-sm);
}

.c-archive-header__inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
}

.c-archive-header__title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-2);
    color: var(--color-text-primary);
}

.c-archive-header__description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

.c-archive-chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-4);
}

.c-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 36px;
    font-weight: var(--font-weight-medium);
}

.c-chip:hover {
    border-color: var(--color-brand-secondary);
    color: var(--color-brand-secondary);
    background: var(--color-bg-primary);
}

.c-chip.is-active {
    background: var(--color-brand-secondary);
    color: var(--color-text-inverse);
    border-color: var(--color-brand-secondary);
}

.c-chip__remove {
    background: none;
    border: none;
    padding: 0;
    margin-left: var(--space-1);
    cursor: pointer;
    color: inherit;
    font-size: var(--font-size-base);
    line-height: 1;
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
}

.c-chip__remove:hover {
    background: rgba(0, 0, 0, 0.1);
}

/* ============================================
   DECISION HEADER (PDP)
   ============================================ */
.c-decision-header {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    margin-bottom: var(--space-8);
    box-shadow: var(--shadow-sm);
}

.c-decision-header__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-5);
    color: var(--color-text-primary);
}

.c-decision-header__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-5);
}

.c-decision-header__item {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.c-decision-header__label {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: var(--font-weight-medium);
}

.c-decision-header__value {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.c-decision-header__value--price {
    font-size: var(--font-size-3xl);
    color: var(--color-brand-secondary);
    font-weight: var(--font-weight-bold);
}

.c-timing-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-inverse);
}

.c-timing-badge--good {
    background: var(--color-success);
}

.c-timing-badge--normal {
    background: var(--color-warning);
}

.c-timing-badge--bad {
    background: var(--color-error);
}

/* ============================================
   FOOTER / TABBAR
   ============================================ */
.c-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: var(--color-bg-primary);
    border-top: 1px solid var(--color-border-secondary);
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.05);
}

.c-tabbar {
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: var(--tabbar-height);
    padding: var(--space-2) 0;
}

.c-tabbar__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2);
    color: var(--color-text-secondary);
    background: none;
    border: none;
    cursor: pointer;
    min-width: 60px;
    min-height: 44px;
    transition: all var(--transition-fast);
    border-radius: var(--radius-md);
}

.c-tabbar__item.is-active,
.c-tabbar__item:hover {
    color: var(--color-brand-secondary);
    background: var(--color-bg-secondary);
}

.c-tabbar__icon {
    font-size: 20px;
    margin-bottom: var(--space-1);
}

.c-tabbar__label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
}

/* ============================================
   GRID LAYOUTS
   ============================================ */
.c-offer-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    padding: var(--content-padding);
}

.c-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    padding: var(--content-padding);
}

.c-grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
    padding: var(--content-padding);
}

/* ============================================
   RAIL (Horizontal Scroll)
   ============================================ */
.c-rail {
    display: flex;
    overflow-x: auto;
    gap: var(--space-4);
    padding: var(--content-padding);
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--color-border-primary) transparent;
}

.c-rail::-webkit-scrollbar {
    height: 8px;
}

.c-rail::-webkit-scrollbar-track {
    background: transparent;
}

.c-rail::-webkit-scrollbar-thumb {
    background: var(--color-border-primary);
    border-radius: var(--radius-full);
}

.c-rail__item {
    flex: 0 0 200px;
    scroll-snap-align: start;
}

.c-rail .c-card--offer {
    width: 200px;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (min-width: 768px) {
    :root {
        --content-padding: var(--space-6);
    }
    
    .c-header {
        height: var(--header-height);
    }
    
    .c-header__inner {
        padding: 0 var(--space-6);
    }
    
    .c-main {
        min-height: calc(100vh - var(--header-height));
        padding-bottom: var(--space-6);
    }
    
    .c-main--pdp {
        padding-bottom: var(--space-6);
    }
    
    .c-offer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .c-grid-2 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .c-grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .c-rail__item {
        flex: 0 0 250px;
    }
    
    .c-rail .c-card--offer {
        width: 250px;
    }
    
    .c-decision-header__grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .c-tabbar {
        display: none;
    }
    
    .c-footer {
        display: none;
    }
}

@media (min-width: 1024px) {
    .c-offer-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .c-grid-4 {
        grid-template-columns: repeat(5, 1fr);
    }
    
    .c-main--pdp {
        display: grid;
        grid-template-columns: 1fr 320px;
        gap: var(--space-8);
        max-width: var(--max-width);
        margin: 0 auto;
        padding: var(--space-8);
    }
    
    .c-main--archive {
        display: grid;
        grid-template-columns: 280px 1fr;
        gap: var(--space-8);
        max-width: var(--max-width);
        margin: 0 auto;
        padding: var(--space-8);
    }
    
    .c-archive-header {
        grid-column: 1 / -1;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-brand-secondary);
    color: var(--color-text-inverse);
    padding: var(--space-2) var(--space-4);
    text-decoration: none;
    z-index: var(--z-tooltip);
    border-radius: 0 0 var(--radius-md) 0;
}

.skip-link:focus {
    top: 0;
}

.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.screen-reader-text:focus {
    position: static;
    width: auto;
    height: auto;
    padding: var(--space-2) var(--space-4);
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    z-index: var(--z-tooltip);
    border-radius: var(--radius-md);
}

*:focus-visible {
    outline: 2px solid var(--color-border-focus);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* Motion reduction */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================
   PHASE 1: UI PROTOTYPES (idealo.de inspired)
   ============================================ */

/* Category Navigation Bar */
.c-category-bar {
    background: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border-secondary);
    padding: var(--space-4) 0;
    position: sticky;
    top: var(--header-height-mobile);
    z-index: var(--z-sticky);
}

.c-category-bar__container {
    display: flex;
    gap: var(--space-2);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding: 0 var(--content-padding);
    scrollbar-width: none;
}

.c-category-bar__container::-webkit-scrollbar {
    display: none;
}

.c-category-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    text-decoration: none;
    white-space: nowrap;
    scroll-snap-align: start;
    transition: background var(--transition-fast), color var(--transition-fast);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.c-category-chip:hover {
    background: var(--color-border-secondary);
    color: var(--color-text-primary);
}

.c-category-chip.is-active {
    background: var(--color-brand-secondary);
    color: var(--color-text-inverse);
}

.c-category-chip__count {
    font-size: var(--font-size-xs);
    opacity: 0.7;
}

@media (min-width: 1024px) {
    .c-category-bar {
        top: var(--header-height);
    }
    
    .c-category-bar__container {
        justify-content: center;
        overflow-x: visible;
        padding: 0 var(--space-8);
    }
}

/* Horizontal Scroll Rail (Enhanced) */
.c-rail--horizontal {
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: var(--space-4) var(--content-padding);
}

.c-rail--horizontal::-webkit-scrollbar {
    display: none;
}

.c-rail__container {
    display: flex;
    gap: var(--space-4);
}

.c-rail__item {
    flex: 0 0 auto;
    width: 200px;
    scroll-snap-align: start;
}

.c-rail__empty {
    padding: var(--space-8);
    text-align: center;
    color: var(--color-text-secondary);
}

@media (min-width: 768px) {
    .c-rail__item {
        width: 250px;
    }
    
    .c-rail--horizontal {
        scroll-snap-type: none;
        scrollbar-width: thin;
    }
    
    .c-rail--horizontal::-webkit-scrollbar {
        display: block;
        height: 8px;
    }
}

/* Module Header */
.c-module__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--content-padding);
    padding-bottom: var(--space-3);
}

.c-module__more {
    font-size: var(--font-size-sm);
    color: var(--color-brand-secondary);
    text-decoration: none;
}

.c-module__more:hover {
    text-decoration: underline;
}

/* Facet Panel (Filter Sidebar) */
.c-facet-panel {
    background: var(--color-bg-primary);
    border-right: 1px solid var(--color-border-secondary);
    height: 100vh;
    overflow-y: auto;
    padding: var(--space-6);
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    z-index: var(--z-modal);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
}

.c-facet-panel.is-open {
    transform: translateX(0);
}

.c-facet-panel__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border-secondary);
}

.c-facet-panel__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin: 0;
}

.c-facet-panel__close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--color-text-secondary);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.c-facet-panel__close:hover {
    background: var(--color-bg-secondary);
}

.c-facet-section {
    margin-bottom: var(--space-6);
}

.c-facet-section__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-3);
    color: var(--color-text-primary);
}

.c-facet-section__content {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.c-facet-checkbox {
    display: flex;
    align-items: center;
    padding: var(--space-2) 0;
    cursor: pointer;
    font-size: var(--font-size-sm);
}

.c-facet-checkbox input[type="checkbox"] {
    margin-right: var(--space-2);
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.c-price-range {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.c-price-slider {
    width: 100%;
    height: 6px;
    border-radius: var(--radius-full);
    background: var(--color-border-secondary);
    outline: none;
    -webkit-appearance: none;
}

.c-price-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    background: var(--color-brand-secondary);
    cursor: pointer;
}

.c-price-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    background: var(--color-brand-secondary);
    cursor: pointer;
    border: none;
}

.c-price-slider__labels {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.c-facet-panel__footer {
    display: flex;
    gap: var(--space-2);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border-secondary);
    position: sticky;
    bottom: 0;
    background: var(--color-bg-primary);
}

@media (min-width: 1024px) {
    .c-facet-panel {
        position: static;
        transform: translateX(0);
        width: 280px;
    }
    
    .c-facet-panel__close {
        display: none;
    }
}

/* Sort Controls */
.c-sort-controls {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--content-padding);
}

.c-sort-controls__label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    white-space: nowrap;
}

.c-sort-controls__select {
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-sm);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    min-width: 150px;
}

.c-sort-controls__select:focus {
    outline: 2px solid var(--color-border-focus);
    outline-offset: 2px;
}

/* Comparison Table */
.c-comparison-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: var(--space-4);
}

.c-comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
    background: var(--color-bg-primary);
}

.c-comparison-table thead {
    background: var(--color-bg-secondary);
}

.c-comparison-table th {
    padding: var(--space-3);
    text-align: left;
    font-weight: var(--font-weight-semibold);
    border-bottom: 2px solid var(--color-border-secondary);
    color: var(--color-text-primary);
    white-space: nowrap;
}

.c-comparison-table td {
    padding: var(--space-3);
    border-bottom: 1px solid var(--color-border-secondary);
    color: var(--color-text-primary);
}

.c-comparison-table tbody tr {
    transition: background var(--transition-fast);
    cursor: pointer;
}

.c-comparison-table tbody tr:hover {
    background: var(--color-bg-secondary);
}

.c-comparison-table tbody tr:focus {
    outline: 2px solid var(--color-border-focus);
    outline-offset: -2px;
}

.c-merchant-name {
    font-weight: var(--font-weight-medium);
}

.c-price {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-brand-secondary);
}

.c-shipping,
.c-delivery,
.c-refund {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.c-rating {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.c-rating__stars {
    color: #fbbf24;
    font-size: var(--font-size-sm);
}

.c-rating__score {
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
}

.c-module__empty {
    padding: var(--space-8);
    text-align: center;
    color: var(--color-text-secondary);
}

@media (max-width: 767px) {
    .c-comparison-table {
        min-width: 600px;
    }
}

/* ============================================
   SECTIONS & MODULES
   ============================================ */
.c-section {
    margin-bottom: var(--space-8);
}

.c-section__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-3);
    border-bottom: 2px solid var(--color-border-secondary);
}

.c-module {
    margin-bottom: var(--space-10);
}

.c-module__header {
    padding: var(--content-padding);
    padding-bottom: var(--space-3);
}

.c-module__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

/* ============================================
   FILTERS & DRAWER
   ============================================ */
.c-filters {
    display: flex;
    gap: var(--space-2);
    padding: var(--content-padding);
    overflow-x: auto;
    position: relative;
    scrollbar-width: none;
}

.c-filters::-webkit-scrollbar {
    display: none;
}

.c-filter-drawer {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg-primary);
    z-index: var(--z-modal);
    transform: translateY(-100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
}

.c-filter-drawer.is-open {
    transform: translateY(0);
}

.c-filter-drawer__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--content-padding);
    border-bottom: 1px solid var(--color-border-secondary);
    position: sticky;
    top: 0;
    background: var(--color-bg-primary);
    z-index: 10;
}

.c-filter-drawer__header h2 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.c-filter-drawer__close {
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    color: var(--color-text-primary);
    cursor: pointer;
    padding: var(--space-2);
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.c-filter-drawer__close:hover {
    background: var(--color-bg-secondary);
}

.c-filter-drawer__content {
    padding: var(--content-padding);
}

.c-filter-group {
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-5);
    border-bottom: 1px solid var(--color-border-secondary);
}

.c-filter-group:last-child {
    border-bottom: none;
}

.c-filter-group h3 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
}

.c-filter-group label {
    display: flex;
    align-items: center;
    padding: var(--space-2) 0;
    cursor: pointer;
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
}

.c-filter-group input[type="checkbox"],
.c-filter-group input[type="radio"] {
    margin-right: var(--space-3);
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    cursor: pointer;
}

/* ============================================
   COMPARISON
   ============================================ */
.c-comparison-tray {
    position: fixed;
    bottom: var(--tabbar-height);
    left: 0;
    right: 0;
    background: var(--color-bg-primary);
    border-top: 1px solid var(--color-border-secondary);
    padding: var(--space-4);
    transform: translateY(100%);
    transition: transform var(--transition-base);
    z-index: var(--z-fixed);
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.1);
}

.c-comparison-tray.is-visible {
    transform: translateY(0);
}

.c-comparison-tray__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
}

.c-comparison-tray__count {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.c-comparison-tray__clear {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.c-comparison-tray__clear:hover {
    background: var(--color-bg-secondary);
}

.c-comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--space-8);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.c-comparison-table th,
.c-comparison-table td {
    padding: var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--color-border-secondary);
}

.c-comparison-table th {
    font-weight: var(--font-weight-semibold);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

.c-comparison-table__cell--highlight {
    background: var(--color-bg-secondary);
    font-weight: var(--font-weight-semibold);
}

.c-comparison-table__cell--better {
    background: var(--color-success-light);
    color: var(--color-success);
}

.c-comparison-table__cell--worse {
    background: var(--color-error-light);
    color: var(--color-error);
}

/* ============================================
   PDP CTA (Sticky)
   ============================================ */
.c-pdp-cta--sticky {
    position: fixed;
    bottom: calc(var(--tabbar-height) + var(--space-4));
    left: var(--content-padding);
    right: var(--content-padding);
    z-index: var(--z-fixed);
    display: none;
}

.c-pdp-cta--sticky.is-visible {
    display: block;
}

.c-pdp-cta__button {
    min-height: 52px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    box-shadow: var(--shadow-xl);
}

.c-pdp-cta__price {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* ============================================
   FAQ
   ============================================ */
.c-faq {
    margin-top: var(--space-5);
}

.c-faq__item {
    margin-bottom: var(--space-4);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-bg-primary);
}

.c-faq__question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-5);
    background: var(--color-bg-secondary);
    border: none;
    text-align: left;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: background var(--transition-fast);
    min-height: 44px;
}

.c-faq__question:hover {
    background: var(--color-bg-tertiary);
}

.c-faq__question[aria-expanded="true"] .c-faq__toggle {
    transform: rotate(45deg);
}

.c-faq__toggle {
    font-size: var(--font-size-xl);
    color: var(--color-brand-secondary);
    transition: transform var(--transition-fast);
    flex-shrink: 0;
    margin-left: var(--space-4);
}

.c-faq__answer {
    padding: var(--space-5);
    color: var(--color-text-primary);
    line-height: var(--line-height-relaxed);
    border-top: 1px solid var(--color-border-secondary);
}

.c-faq__answer[hidden] {
    display: none;
}

/* ============================================
   EVIDENCE CARDS
   ============================================ */
.c-evidence-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-5);
    margin-bottom: var(--space-8);
}

.c-evidence-card {
    padding: var(--space-5);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.c-evidence-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.c-evidence-card__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
}

.c-evidence-card__metric {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-brand-secondary);
    margin-bottom: var(--space-2);
}

.c-evidence-card__method,
.c-evidence-card__sample,
.c-evidence-card__date {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.c-evidence-card__source {
    display: inline-block;
    margin-top: var(--space-3);
    color: var(--color-brand-secondary);
    text-decoration: underline;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

/* ============================================
   PRICE TREND
   ============================================ */
.c-price-trend {
    background: var(--color-bg-secondary);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-8);
    box-shadow: var(--shadow-sm);
}

.c-price-trend__chart {
    min-height: 200px;
    margin-bottom: var(--space-6);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
}

.c-price-trend__tco {
    padding: var(--space-5);
    background: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-5);
}

.c-price-trend__tco-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-3);
}

.c-price-trend__tco-value {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-brand-secondary);
}

.c-price-trend__tco-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* ============================================
   REVIEW SECTION（@cosme風）
   ============================================ */
.c-review-overview {
    background: var(--color-bg-secondary);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-6);
    box-shadow: var(--shadow-sm);
}

.c-review-overview__rating {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--space-6);
}

.c-review-overview__score {
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.c-review-overview__score-value {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    line-height: 1;
}

.c-review-overview__score-max {
    font-size: var(--font-size-xl);
    color: var(--color-text-muted);
}

.c-review-overview__stars {
    display: flex;
    gap: var(--space-1);
    margin-bottom: var(--space-2);
}

.c-review-star {
    color: var(--color-border-primary);
    transition: color var(--transition-fast);
}

.c-review-star.is-full {
    color: var(--color-text-primary);
}

.c-review-star.is-partial {
    color: var(--color-text-primary);
    opacity: 0.5;
}

.c-review-overview__count {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* 分布ヒストグラム */
.c-review-distribution {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.c-review-distribution__row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.c-review-distribution__star {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    min-width: 30px;
}

.c-review-distribution__bar {
    flex: 1;
    height: 8px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.c-review-distribution__bar-fill {
    height: 100%;
    background: var(--color-text-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}

.c-review-distribution__count {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    min-width: 40px;
    text-align: right;
}

/* レビューサマリー（良い点/悪い点） */
.c-review-summary {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
    margin-bottom: var(--space-6);
}

@media (min-width: 768px) {
    .c-review-summary {
        grid-template-columns: repeat(2, 1fr);
    }
}

.c-review-summary__pros,
.c-review-summary__cons {
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-secondary);
}

.c-review-summary__pros {
    background: var(--color-bg-secondary);
}

.c-review-summary__cons {
    background: var(--color-bg-secondary);
}

.c-review-summary__pros-title,
.c-review-summary__cons-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
}

.c-review-summary__pros-list,
.c-review-summary__cons-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.c-review-summary__pros-item,
.c-review-summary__cons-item {
    padding: var(--space-3) 0;
    padding-left: var(--space-6);
    position: relative;
    line-height: var(--line-height-relaxed);
    color: var(--color-text-primary);
    border-bottom: 1px solid var(--color-border-secondary);
}

.c-review-summary__pros-item:last-child,
.c-review-summary__cons-item:last-child {
    border-bottom: none;
}

.c-review-summary__pros-item::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-text-primary);
    font-weight: var(--font-weight-bold);
}

.c-review-summary__cons-item::before {
    content: '×';
    position: absolute;
    left: 0;
    color: var(--color-text-primary);
    font-weight: var(--font-weight-bold);
}

/* レビューリスト */
.c-review-list {
    margin-top: var(--space-6);
}

.c-review-list__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-5);
    color: var(--color-text-primary);
}

.c-review-item {
    padding: var(--space-5);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    background: var(--color-bg-primary);
}

.c-review-item__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
}

.c-review-item__rating {
    display: flex;
    gap: var(--space-1);
}

.c-review-item__date {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.c-review-item__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-2);
    color: var(--color-text-primary);
}

.c-review-item__body {
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.c-review-item__segment {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    padding: var(--space-1) var(--space-2);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    display: inline-block;
}

.c-review-list__more {
    width: 100%;
    margin-top: var(--space-4);
}

/* ============================================
   COUNTDOWN
   ============================================ */
.c-countdown {
    padding: var(--space-4);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-6);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.c-countdown__label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: var(--font-weight-medium);
}

.c-countdown__time {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-error);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.c-empty {
    padding: var(--space-12);
    text-align: center;
    color: var(--color-text-tertiary);
}

.c-error {
    padding: var(--space-6);
    text-align: center;
    color: var(--color-error);
    background: var(--color-error-light);
    border-radius: var(--radius-lg);
}

.c-skeleton {
    padding: var(--content-padding);
}

.c-skeleton__item {
    height: 200px;
    background: linear-gradient(90deg, var(--color-bg-secondary) 25%, var(--color-bg-tertiary) 50%, var(--color-bg-secondary) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ============================================
   ADDITIONAL RESPONSIVE IMPROVEMENTS
   ============================================ */
@media (min-width: 768px) {
    .c-pdp-cta--sticky {
        display: none !important;
    }
    
    .c-main--pdp {
        padding-bottom: var(--space-6);
    }
    
    .c-comparison-tray {
        bottom: 0;
    }
}

@media (max-width: 767px) {
    .c-evidence-grid {
        grid-template-columns: 1fr;
    }
    
    .c-comparison-table {
        display: none;
    }
    
    .c-section--alternatives-mobile {
        display: block;
    }
}

@media (min-width: 1024px) {
    .c-section--alternatives-mobile {
        display: none;
    }
    
    .c-comparison-table {
        display: table;
    }
}

/* ============================================
   AI EVALUATION SYSTEM
   ============================================ */
.c-ai-evaluation {
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    margin-bottom: var(--space-8);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--color-brand-secondary);
}

.c-ai-evaluation__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-4);
    border-bottom: 2px solid var(--color-border-secondary);
}

.c-ai-evaluation__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.c-ai-evaluation__title::before {
    content: '🤖';
    font-size: var(--font-size-2xl);
}

.c-ai-evaluation__overall-score {
    text-align: center;
    padding: var(--space-5);
    background: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-5);
    box-shadow: var(--shadow-sm);
}

.c-ai-evaluation__score-value {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-brand-secondary);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.c-ai-evaluation__score-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: var(--font-weight-medium);
}

.c-ai-evaluation__score-max {
    font-size: var(--font-size-lg);
    color: var(--color-text-tertiary);
    margin-left: var(--space-1);
}

.c-ai-evaluation__metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-5);
}

/* ============================================
   Gen-Z体験とトレンドエンジン UI
   ============================================ */

/* Pulseティッカー */
.c-pulse-ticker-container {
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border-secondary);
    padding: var(--space-3) 0;
    overflow: hidden;
}

.c-pulse-ticker {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: 0 var(--space-4);
}

.c-pulse-ticker__track {
    display: flex;
    gap: var(--space-6);
    align-items: center;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.c-pulse-ticker__track::-webkit-scrollbar {
    display: none;
}

.c-pulse-ticker__item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--color-bg-primary);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    border: 1px solid var(--color-border-secondary);
}

.c-pulse-ticker__item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-border-focus);
}

.c-pulse-ticker__badge {
    display: inline-flex;
    align-items: center;
    padding: 2px var(--space-2);
    background: var(--color-brand-secondary);
    color: var(--color-text-inverse);
    border-radius: var(--radius-sm);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-xs);
}

.c-pulse-ticker__title {
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
}

/* Vibeバー */
.c-module--vibes {
    padding: var(--space-4) 0;
    background: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border-secondary);
}

.c-vibe-bar {
    display: flex;
    gap: var(--space-2);
    padding: 0 var(--space-4);
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--color-border-primary) transparent;
}

.c-vibe-bar::-webkit-scrollbar {
    height: 4px;
}

.c-vibe-bar::-webkit-scrollbar-track {
    background: transparent;
}

.c-vibe-bar::-webkit-scrollbar-thumb {
    background: var(--color-border-primary);
    border-radius: var(--radius-full);
}

.c-vibe-chip {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-4);
    background: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    border-radius: var(--radius-full);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    white-space: nowrap;
    transition: all var(--transition-fast);
    border: 1px solid var(--color-border-secondary);
}

.c-vibe-chip:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border-color: var(--color-border-primary);
    transform: translateY(-1px);
}

.c-vibe-chip.is-active {
    background: var(--color-brand-secondary);
    color: var(--color-text-inverse);
    border-color: var(--color-brand-secondary);
}

/* Trending（Pulse Rail） */
.c-module--trending {
    padding: var(--space-6) 0 var(--space-2);
}

.c-module--trending .c-rail__container {
    display: flex;
    gap: var(--space-4);
}

.c-module--trending .c-card--trending {
    min-width: 240px;
    max-width: 280px;
}

.c-module--trending .c-card__image {
    position: relative;
}

.c-module--trending .c-card__pulse-badge,
.c-module--trending .c-pulse-badge {
    position: absolute;
    top: var(--space-3);
    left: var(--space-3);
    background: rgba(15, 23, 42, 0.85);
    color: var(--color-text-inverse);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
}

@media (max-width: 767px) {
    .c-module--trending .c-card--trending {
        min-width: 70vw;
    }
}

.c-card__vibes {
    display: flex;
    gap: var(--space-1);
    flex-wrap: wrap;
    margin-top: var(--space-2);
}

.c-card__vibes .c-vibe-chip {
    font-size: var(--font-size-xs);
    padding: 2px var(--space-2);
    background: var(--color-bg-tertiary);
    border: none;
}

.c-card__pulse-badge {
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);
    z-index: 1;
}

.c-pulse-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px var(--space-2);
    background: rgba(0, 0, 0, 0.75);
    color: var(--color-text-inverse);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    backdrop-filter: blur(4px);
}

/* Now Trendingページ */
.c-main--trending {
    padding: var(--space-4);
}

.c-trending-header {
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border-secondary);
}

.c-trending-header__inner {
    max-width: 1200px;
    margin: 0 auto;
}

.c-trending-header__title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.c-trending-header__description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
}

.c-trending-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--space-6);
    max-width: 1200px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .c-trending-layout {
        grid-template-columns: 1fr;
    }
    
    .c-trending-facet {
        order: 2;
    }
    
    .c-trending-content {
        order: 1;
    }
}

.c-trending-facet {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    height: fit-content;
    position: sticky;
    top: calc(var(--header-height) + var(--space-4));
}

.c-trending-facet__inner {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.c-facet-section {
    border-bottom: 1px solid var(--color-border-secondary);
    padding-bottom: var(--space-4);
}

.c-facet-section:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.c-facet-section__title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-3);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.c-facet-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.c-facet-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) var(--space-3);
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.c-facet-item:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.c-facet-item.is-active {
    background: var(--color-brand-secondary);
    color: var(--color-text-inverse);
    font-weight: var(--font-weight-medium);
}

.c-facet-item__count {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    margin-left: var(--space-2);
}

.c-facet-item.is-active .c-facet-item__count {
    color: rgba(255, 255, 255, 0.8);
}

.c-facet-price {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.c-facet-price__inputs {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.c-facet-price__input {
    flex: 1;
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
}

.c-facet-price__separator {
    color: var(--color-text-tertiary);
}

.c-facet-price__submit {
    padding: var(--space-2) var(--space-4);
    background: var(--color-brand-secondary);
    color: var(--color-text-inverse);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.c-facet-price__submit:hover {
    background: var(--color-brand-secondary-hover);
}

.c-trending-content {
    min-width: 0;
}

.c-trending-sort {
    margin-bottom: var(--space-4);
    display: flex;
    justify-content: flex-end;
}

.c-trending-sort__select {
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    cursor: pointer;
}

.c-trending-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-4);
}

@media (max-width: 768px) {
    .c-trending-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-3);
    }
}

.c-trending-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-8);
    color: var(--color-text-secondary);
}

/* スワイプ比較（モバイル） */
.c-swipe-compare {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}

.c-swipe-compare__stack {
    position: relative;
    width: 100%;
    max-width: 400px;
    height: 500px;
}

.c-swipe-compare__card {
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--color-bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-2xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-base);
    cursor: grab;
}

.c-swipe-compare__card:active {
    cursor: grabbing;
}

.c-swipe-compare__card.is-kept {
    transform: translateX(200%) rotate(30deg);
    opacity: 0;
}

.c-swipe-compare__card.is-discarded {
    transform: translateX(-200%) rotate(-30deg);
    opacity: 0;
}

.c-swipe-compare__card img {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
}

.c-swipe-compare__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
    text-align: center;
}

.c-swipe-compare__price {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-brand-secondary);
}

/* 価格推移グラフ */
.c-section--price-trend {
    margin-top: var(--space-8);
}

.c-price-trend {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.c-price-trend__controls {
    display: flex;
    gap: var(--space-2);
}

.c-price-trend__toggle {
    padding: var(--space-2) var(--space-4);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.c-price-trend__toggle:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.c-price-trend__toggle.is-active {
    background: var(--color-brand-secondary);
    color: var(--color-text-inverse);
    border-color: var(--color-brand-secondary);
}

.c-price-trend__chart-wrapper {
    position: relative;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
}

.c-price-trend__chart {
    position: relative;
    height: 300px;
    width: 100%;
}

.c-price-trend__chart canvas {
    max-height: 100%;
}

.c-price-trend__buytime {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-2);
}

.c-buytime-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--color-success);
    color: var(--color-text-inverse);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
}

.c-buytime-badge__icon {
    font-size: var(--font-size-lg);
}

.c-price-trend__buytime-note {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    margin: 0;
    text-align: right;
}

.c-price-trend__stats {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
}

.c-price-trend__stat {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.c-price-trend__stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.c-price-trend__stat-value {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.c-price-trend__tco {
    padding: var(--space-4);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
}

.c-price-trend__tco-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-3);
}

.c-price-trend__tco-tabs {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.c-price-trend__tco-tab {
    padding: var(--space-2) var(--space-4);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.c-price-trend__tco-tab:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.c-price-trend__tco-tab.is-active {
    background: var(--color-brand-secondary);
    color: var(--color-text-inverse);
    border-color: var(--color-brand-secondary);
}

.c-price-trend__tco-value {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-brand-secondary);
}

.c-price-trend__tco-label {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-normal);
}

.c-price-trend__tco-amount {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-brand-secondary);
    display: block;
    margin-bottom: var(--space-2);
}

.c-price-trend__tco-breakdown {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    margin-top: var(--space-2);
    padding-top: var(--space-2);
    border-top: 1px solid var(--color-border-secondary);
}

.c-price-trend__tco-item {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.c-ai-evaluation__metric {
    background: var(--color-bg-primary);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-secondary);
    transition: all var(--transition-base);
}

.c-ai-evaluation__metric:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: var(--color-brand-secondary);
}

.c-ai-evaluation__metric-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
    font-weight: var(--font-weight-medium);
}

.c-ai-evaluation__metric-value {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-brand-secondary);
    margin-bottom: var(--space-2);
}

.c-ai-evaluation__metric-bar {
    height: 8px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.c-ai-evaluation__metric-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-success) 0%, var(--color-brand-secondary) 100%);
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}

.c-ai-evaluation__recommendation {
    background: var(--color-info-light);
    border-left: 4px solid var(--color-info);
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    margin-top: var(--space-5);
}

.c-ai-evaluation__recommendation-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-info);
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.c-ai-evaluation__recommendation-title::before {
    content: '⭐';
    font-size: var(--font-size-xl);
}

.c-ai-evaluation__recommendation-text {
    color: var(--color-text-primary);
    line-height: var(--line-height-relaxed);
}

/* ============================================
   PROS & CONS
   ============================================ */
.c-pros-cons {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
    margin-bottom: var(--space-8);
}

@media (min-width: 768px) {
    .c-pros-cons {
        grid-template-columns: repeat(2, 1fr);
    }
}

.c-pros,
.c-cons {
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.c-pros {
    background: var(--color-success-light);
    border: 2px solid var(--color-success);
}

.c-cons {
    background: var(--color-error-light);
    border: 2px solid var(--color-error);
}

.c-pros__title,
.c-cons__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.c-pros__title {
    color: var(--color-success);
}

.c-pros__title::before {
    content: '✓';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--color-success);
    color: white;
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-bold);
}

.c-cons__title {
    color: var(--color-error);
}

.c-cons__title::before {
    content: '✗';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--color-error);
    color: white;
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-bold);
}

.c-pros__list,
.c-cons__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.c-pros__item,
.c-cons__item {
    padding: var(--space-3) 0;
    padding-left: var(--space-6);
    position: relative;
    line-height: var(--line-height-relaxed);
    color: var(--color-text-primary);
}

.c-pros__item::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-lg);
}

.c-cons__item::before {
    content: '✗';
    position: absolute;
    left: 0;
    color: var(--color-error);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-lg);
}

.c-pros__item:not(:last-child),
.c-cons__item:not(:last-child) {
    border-bottom: 1px solid var(--color-border-secondary);
}

/* ============================================
   VERIFICATION BADGE
   ============================================ */
.c-verification-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-success-light);
    color: var(--color-success);
    border: 1px solid var(--color-success);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
}

.c-verification-badge::before {
    content: '🔬';
    font-size: var(--font-size-base);
}

.c-verification-info {
    background: var(--color-bg-secondary);
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-6);
    border-left: 4px solid var(--color-brand-secondary);
}

.c-verification-info__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-3);
}

.c-verification-info__text {
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* ============================================
   RANKING DISPLAY (価格ドットコム・マイベスト風)
   ============================================ */
.c-ranking-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-brand-secondary) 0%, var(--color-brand-primary) 100%);
    color: var(--color-text-inverse);
    border-radius: var(--radius-full);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    box-shadow: var(--shadow-md);
    flex-shrink: 0;
}

.c-ranking-badge--gold {
    background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
    color: var(--color-text-primary);
}

.c-ranking-badge--silver {
    background: linear-gradient(135deg, #c0c0c0 0%, #e8e8e8 100%);
    color: var(--color-text-primary);
}

.c-ranking-badge--bronze {
    background: linear-gradient(135deg, #cd7f32 0%, #e6a857 100%);
    color: var(--color-text-inverse);
}

.c-ranking-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--color-bg-primary);
    border: 2px solid var(--color-border-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-3);
    transition: all var(--transition-base);
    position: relative;
}

.c-ranking-item:hover {
    border-color: var(--color-brand-secondary);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.c-ranking-item--highlight {
    border-color: var(--color-brand-secondary);
    background: var(--color-bg-secondary);
    box-shadow: var(--shadow-md);
}

.c-ranking-item__rank {
    flex-shrink: 0;
}

.c-ranking-item__content {
    flex: 1;
    min-width: 0;
}

.c-ranking-item__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.c-ranking-item__score {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.c-ranking-item__price {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-brand-secondary);
    margin-left: auto;
    flex-shrink: 0;
}

/* ============================================
   COMPARISON CARD
   ============================================ */
.c-comparison-card {
    background: var(--color-bg-primary);
    border: 2px solid var(--color-border-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    transition: all var(--transition-base);
    position: relative;
}

.c-comparison-card:hover {
    border-color: var(--color-brand-secondary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.c-comparison-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border-secondary);
}

.c-comparison-card__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

.c-comparison-card__badge {
    padding: var(--space-1) var(--space-3);
    background: var(--color-brand-secondary);
    color: var(--color-text-inverse);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
}

.c-comparison-card__features {
    list-style: none;
    padding: 0;
    margin: 0;
    margin-bottom: var(--space-4);
}

.c-comparison-card__feature {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) 0;
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
}

.c-comparison-card__feature::before {
    content: '✓';
    color: var(--color-success);
    font-weight: var(--font-weight-bold);
    flex-shrink: 0;
}

.c-comparison-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border-secondary);
}

.c-comparison-card__price {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-brand-secondary);
}

.c-comparison-card__cta {
    padding: var(--space-3) var(--space-5);
    background: var(--color-brand-secondary);
    color: var(--color-text-inverse);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.c-comparison-card__cta:hover {
    background: var(--color-brand-secondary-hover);
    transform: scale(1.05);
    text-decoration: none;
}

/* ============================================
   PRICE COMPARISON (価格ドットコム風)
   ============================================ */
.c-price-comparison {
    background: var(--color-bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    margin-bottom: var(--space-8);
    box-shadow: var(--shadow-md);
}

.c-price-comparison__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-4);
    border-bottom: 2px solid var(--color-border-secondary);
}

.c-price-comparison__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

.c-price-comparison__table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--space-5);
}

.c-price-comparison__table th,
.c-price-comparison__table td {
    padding: var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--color-border-secondary);
}

.c-price-comparison__table th {
    background: var(--color-bg-secondary);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    position: sticky;
    top: 0;
}

.c-price-comparison__table tr:hover {
    background: var(--color-bg-secondary);
}

.c-price-comparison__store {
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
}

.c-price-comparison__price {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-brand-secondary);
}

.c-price-comparison__price--lowest {
    color: var(--color-success);
    position: relative;
}

.c-price-comparison__price--lowest::after {
    content: '最安';
    display: inline-block;
    margin-left: var(--space-2);
    padding: var(--space-1) var(--space-2);
    background: var(--color-success);
    color: white;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
}

.c-price-comparison__link {
    color: var(--color-brand-secondary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
}

.c-price-comparison__link:hover {
    color: var(--color-brand-secondary-hover);
    text-decoration: underline;
}

/* ============================================
   HOME PAGE SPECIFIC STYLES (マイベスト風)
   ============================================ */
.c-main--home {
    padding-top: 0;
}

/* ヒーローセクション */
.c-hero--home {
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
    padding: var(--space-12) var(--content-padding);
    text-align: center;
    margin-bottom: var(--space-10);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
    min-height: clamp(240px, 45vh, 520px);
    max-height: 60vh;
}

.c-hero--home::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(0,0,0,0.03)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
    pointer-events: none;
}

.c-hero__inner {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.c-hero__title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
    line-height: var(--line-height-tight);
}

.c-hero__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
    line-height: var(--line-height-relaxed);
}

.c-hero__search {
    max-width: 600px;
    margin: 0 auto;
}

.c-search-form {
    display: flex;
    gap: var(--space-2);
    background: var(--color-bg-primary);
    border-radius: var(--radius-full);
    padding: var(--space-2);
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--color-border-secondary);
    transition: all var(--transition-base);
}

.c-search-form:focus-within {
    border-color: var(--color-brand-secondary);
    box-shadow: 0 0 0 4px rgba(29, 78, 216, 0.1);
}

.c-search-form__input {
    flex: 1;
    border: none;
    background: transparent;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    outline: none;
}

.c-search-form__input::placeholder {
    color: var(--color-text-tertiary);
}

.c-search-form__button {
    width: 44px;
    height: 44px;
    border: none;
    background: var(--color-brand-secondary);
    color: var(--color-text-inverse);
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.c-search-form__button:hover {
    background: var(--color-brand-secondary-hover);
    transform: scale(1.05);
}

.c-search-form__icon {
    font-size: var(--font-size-lg);
}

/* セクション構造 */
.c-section {
    margin-bottom: var(--space-12);
    padding: 0 var(--content-padding);
}

.c-section__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--space-6);
    gap: var(--space-4);
}

.c-section__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    line-height: var(--line-height-tight);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.c-section__title-main {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
}

.c-section__title-sub {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

.c-section__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-brand-secondary);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    flex-shrink: 0;
    white-space: nowrap;
}

.c-section__link:hover {
    background: var(--color-bg-secondary);
    text-decoration: none;
    transform: translateX(4px);
}

.c-section__link-icon {
    font-size: var(--font-size-lg);
    transition: transform var(--transition-fast);
}

.c-section__link:hover .c-section__link-icon {
    transform: translateX(4px);
}

/* 比較グリッド */
.c-comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-5);
}

.c-comparison-card {
    background: var(--color-bg-primary);
    border: 2px solid var(--color-border-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    position: relative;
}

.c-comparison-card:hover {
    border-color: var(--color-brand-secondary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.c-comparison-card__link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.c-comparison-card__image {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--color-bg-secondary);
}

.c-comparison-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.c-comparison-card:hover .c-comparison-card__image img {
    transform: scale(1.1);
}

.c-comparison-card__content {
    padding: var(--space-5);
}

.c-comparison-card__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
    line-height: var(--line-height-normal);
}

.c-comparison-card__meta {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

/* マガジングリッド */
.c-magazine-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-5);
}

.c-magazine-card {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.c-magazine-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.c-magazine-card__link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.c-magazine-card__image {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--color-bg-secondary);
}

.c-magazine-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.c-magazine-card__content {
    padding: var(--space-5);
}

.c-magazine-card__date {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-2);
    display: block;
}

.c-magazine-card__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
    line-height: var(--line-height-normal);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.c-magazine-card__excerpt {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* レビューグリッド */
.c-review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--space-5);
}

.c-review-card {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.c-review-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.c-review-card__link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.c-review-card__image {
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--color-bg-secondary);
}

.c-review-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.c-review-card__content {
    padding: var(--space-4);
}

.c-review-card__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
    line-height: var(--line-height-normal);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.c-review-card__score {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.c-review-card__price {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-brand-secondary);
}

/* エキスパートグリッド */
.c-expert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-5);
}

.c-expert-card {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.c-expert-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.c-expert-card__link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.c-expert-card__expert {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border-secondary);
}

.c-expert-card__expert img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

.c-expert-card__expert span {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
}

.c-expert-card__content {
    padding: var(--space-4);
}

.c-expert-card__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
    line-height: var(--line-height-normal);
}

.c-expert-card__expert-name {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
}

/* トレンディンググリッド */
.c-trending-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-4);
}

/* カテゴリグリッド */
.c-category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--space-4);
}

.c-category-card {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    text-align: center;
}

.c-category-card:hover {
    border-color: var(--color-brand-secondary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.c-category-card__link {
    display: block;
    text-decoration: none;
    color: inherit;
    padding: var(--space-4);
}

.c-category-card__image {
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-3);
}

.c-category-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.c-category-card__content {
    text-align: center;
}

.c-category-card__name {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-1);
}

.c-category-card__count {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

/* レスポンシブ調整 */
@media (max-width: 767px) {
    .c-hero__title {
        font-size: var(--font-size-3xl);
    }
    
    .c-hero__subtitle {
        font-size: var(--font-size-base);
    }
    
    .c-section__header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .c-section__title {
        font-size: var(--font-size-xl);
    }
    
    .c-section__title-main {
        font-size: var(--font-size-base);
    }
    
    .c-section__title-sub {
        font-size: var(--font-size-xl);
    }
    
    .c-comparison-grid,
    .c-magazine-grid,
    .c-review-grid,
    .c-expert-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: var(--space-4);
    }
    
    .c-trending-grid,
    .c-category-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
}

@media (min-width: 1024px) {
    .c-hero--home {
        min-height: clamp(320px, 55vh, 560px);
    }
}

@media (min-width: 1024px) {
    .c-comparison-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .c-magazine-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .c-review-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .c-expert-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .c-trending-grid {
        grid-template-columns: repeat(5, 1fr);
    }
    
    .c-category-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

/* ============================================
   SIDEBAR NAVIGATION - idealo風レイアウト
   ============================================ */
.c-sidebar {
    position: fixed;
    top: var(--header-height-mobile);
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--header-height-mobile));
    background: var(--color-bg-primary);
    border-right: 1px solid var(--color-border-secondary);
    overflow-y: auto;
    z-index: var(--z-sticky);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    display: none;
    box-shadow: 1px 0 3px rgba(0, 0, 0, 0.05);
}

.c-sidebar.is-open {
    transform: translateX(0);
}

/* idealo風サイドバー（常時表示） */
.c-sidebar--idealo {
    position: static;
    width: 280px;
    min-width: 280px;
    max-width: 280px;
    height: auto;
    transform: none;
    display: block;
    border-right: 1px solid var(--color-border-secondary);
    background: var(--color-bg-primary);
    padding: var(--space-6);
    margin-right: var(--space-6);
    box-shadow: none;
}

@media (min-width: 1024px) {
    .c-sidebar--idealo {
        display: block;
        position: sticky;
        top: calc(var(--header-height) + var(--space-4));
        align-self: start;
        max-height: calc(100vh - var(--header-height) - var(--space-8));
        overflow-y: auto;
    }
    
    .c-layout--idealo {
        align-items: start;
    }
}

@media (max-width: 1023px) {
    .c-layout--idealo {
        grid-template-columns: 1fr;
        padding: var(--space-4) var(--content-padding);
    }
    
    .c-sidebar--idealo {
        display: none; /* モバイルでは非表示（既存のドロワーを使用） */
    }
}

.c-sidebar__nav {
    padding: var(--space-4);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.c-sidebar__section {
    margin-bottom: var(--space-6);
}

.c-sidebar__section-title {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: var(--space-2) var(--space-3);
    margin-bottom: var(--space-2);
}

.c-sidebar__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.c-sidebar__item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    color: var(--color-text-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    min-height: 44px;
    position: relative;
}

.c-sidebar__item:hover {
    background: var(--color-bg-secondary);
    text-decoration: none;
}

.c-sidebar__item.is-active {
    background: var(--color-bg-secondary);
    color: var(--color-brand-secondary);
    font-weight: var(--font-weight-semibold);
}

.c-sidebar__item.is-active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 24px;
    background: var(--color-brand-secondary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.c-sidebar__icon {
    font-size: var(--font-size-lg);
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.c-sidebar__label {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.c-sidebar__badge {
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.c-sidebar__item--more {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.c-sidebar__list--tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.c-sidebar__tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.c-sidebar__tag:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-brand-secondary);
    text-decoration: none;
}

.c-sidebar__tag.is-active {
    background: var(--color-brand-secondary);
    color: var(--color-text-inverse);
    border-color: var(--color-brand-secondary);
}

.c-sidebar__footer {
    margin-top: auto;
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-size: var(--font-size-xs);
}

.c-sidebar__footer-link {
    color: var(--color-text-tertiary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.c-sidebar__footer-link:hover {
    color: var(--color-text-primary);
    text-decoration: underline;
}

.c-sidebar__footer-separator {
    color: var(--color-text-tertiary);
}

.c-sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg-overlay);
    z-index: calc(var(--z-sticky) - 1);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.c-sidebar-overlay.is-visible {
    opacity: 1;
    visibility: visible;
}

@media (min-width: 1024px) {
    .c-sidebar-overlay {
        display: none;
    }
}

/* デスクトップ: サイドバー常時表示 */
@media (min-width: 1024px) {
    .c-sidebar {
        position: sticky;
        top: var(--header-height);
        transform: translateX(0);
        display: block;
        height: calc(100vh - var(--header-height));
    }
    
    .c-sidebar-overlay {
        display: none;
    }
    
    .c-main {
        margin-left: var(--sidebar-width);
    }
    
    .c-main--home {
        margin-left: 0;
    }
}

/* モバイル: サイドバーオーバーレイ */
@media (max-width: 1023px) {
    .c-sidebar {
        display: block;
        top: var(--header-height-mobile);
        height: calc(100vh - var(--header-height-mobile));
    }
    
    .c-sidebar.is-open {
        transform: translateX(0);
    }
    
    .c-sidebar-overlay.is-visible {
        opacity: 1;
        visibility: visible;
    }
    
    .c-main {
        margin-left: 0;
    }
}