/* ==========================================================================
   ChairGrade.com — Premium Design System & UI Stylesheet
   Fonts: Plus Jakarta Sans & Outfit
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
    /* Color Palette */
    --color-bg-primary: #0b0f19;
    --color-bg-surface: #111827;
    --color-bg-card: #172033;
    --color-bg-card-hover: #1e293b;
    --color-bg-subtle: #0f172a;
    
    --color-border-subtle: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(16, 185, 129, 0.3);
    
    --color-text-primary: #f8fafc;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    
    /* Accents */
    --color-accent-emerald: #10b981;
    --color-accent-emerald-glow: rgba(16, 185, 129, 0.2);
    --color-accent-cyan: #06b6d4;
    --color-accent-indigo: #6366f1;
    --color-accent-amber: #f59e0b;
    --color-accent-rose: #f43f5e;
    
    /* Typography */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Shadows & Radii */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 25px rgba(16, 185, 129, 0.15);
    
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    color-scheme: dark;
}

body {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Background Atmosphere Glow */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.07) 0%, rgba(6, 182, 212, 0.03) 40%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

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

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

/* Container */
.cg-container {
    width: 100%;
    max-width: 1240px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.cg-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 15, 25, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border-subtle);
}

.cg-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 20px;
}

.cg-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.35rem;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
}

.cg-logo__icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.cg-logo__icon svg {
    width: 22px;
    height: 22px;
    fill: white;
}

.cg-logo__highlight {
    background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cg-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.cg-nav__link {
    font-size: 0.925rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.cg-nav__link:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.cg-header__actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.cg-search-pill {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-full);
    padding: 6px 16px;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.cg-search-pill:hover, .cg-search-pill:focus-within {
    border-color: var(--color-accent-emerald);
    background: rgba(255, 255, 255, 0.09);
    color: var(--color-text-primary);
}

.cg-search-pill input {
    background: transparent;
    border: none;
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: 0.875rem;
    outline: none;
    width: 140px;
    transition: width var(--transition-base);
}

.cg-search-pill input:focus {
    width: 200px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.cg-hero {
    padding: 64px 0 48px;
    position: relative;
}

.cg-badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.25);
    color: var(--color-accent-emerald);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 0.825rem;
    font-weight: 600;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.cg-hero__title {
    font-family: var(--font-heading);
    font-size: 3.25rem;
    line-height: 1.15;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
    max-width: 820px;
}

.cg-hero__title-gradient {
    background: linear-gradient(135deg, #ffffff 30%, #94a3b8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cg-hero__subtitle {
    font-size: 1.15rem;
    color: var(--color-text-secondary);
    max-width: 680px;
    margin-bottom: 32px;
}

.cg-hero__cta-group {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* Buttons */
.cg-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition-base);
    text-align: center;
}

.cg-btn--primary {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.cg-btn--primary:hover {
    box-shadow: 0 6px 24px rgba(16, 185, 129, 0.45);
    transform: translateY(-2px);
}

.cg-btn--secondary {
    background: var(--color-bg-card);
    border-color: var(--color-border-subtle);
    color: var(--color-text-primary);
}

.cg-btn--secondary:hover {
    background: var(--color-bg-card-hover);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.cg-btn--sm {
    padding: 8px 16px;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
}

.cg-btn--amber {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
}

/* ==========================================================================
   Cards & Grids
   ========================================================================== */
.cg-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 28px;
}

.cg-grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

.cg-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: all var(--transition-base);
}

.cg-card:hover {
    border-color: var(--color-border-hover);
    background: var(--color-bg-card-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow), var(--shadow-lg);
}

.cg-card__image-wrap {
    height: 220px;
    background: radial-gradient(circle at center, #1e293b 0%, #0f172a 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    overflow: hidden;
    position: relative;
}

.cg-card__image {
    max-height: 85%;
    max-width: 85%;
    object-fit: contain;
    transition: transform var(--transition-base);
}

.cg-card:hover .cg-card__image {
    transform: scale(1.04);
}

.cg-score-badge {
    position: absolute;
    top: 14px;
    right: 14px;
    background: rgba(11, 15, 25, 0.9);
    border: 1px solid rgba(16, 185, 129, 0.4);
    border-radius: var(--radius-md);
    padding: 6px 12px;
    display: flex;
    align-items: baseline;
    gap: 3px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.cg-score-badge__num {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.15rem;
    color: var(--color-accent-emerald);
}

.cg-score-badge__scale {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.cg-card__brand {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent-cyan);
    margin-bottom: 6px;
}

.cg-card__title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 12px;
}

.cg-card__desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
    flex-grow: 1;
}

.cg-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--color-border-subtle);
    gap: 12px;
}

.cg-card__price {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.cg-card__price-sub {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    display: block;
}

/* ==========================================================================
   Specification Table
   ========================================================================== */
.cg-spec-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin: 24px 0;
}

.cg-spec-table th, .cg-spec-table td {
    padding: 14px 20px;
    font-size: 0.925rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border-subtle);
}

.cg-spec-table tr:last-child th,
.cg-spec-table tr:last-child td {
    border-bottom: none;
}

.cg-spec-table th {
    background: rgba(255, 255, 255, 0.03);
    color: var(--color-text-secondary);
    font-weight: 600;
    width: 35%;
}

.cg-spec-table td {
    color: var(--color-text-primary);
}

/* ==========================================================================
   Comparison Matrix
   ========================================================================== */
.cg-compare-container {
    overflow-x: auto;
    margin: 32px 0;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-subtle);
}

.cg-compare-table {
    width: 100%;
    min-width: 680px;
    border-collapse: collapse;
    background: var(--color-bg-card);
}

.cg-compare-table th, .cg-compare-table td {
    padding: 18px 24px;
    border-bottom: 1px solid var(--color-border-subtle);
    vertical-align: middle;
}

.cg-compare-table thead th {
    background: #0f172a;
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
}

.cg-compare-table tbody tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.cg-compare-label {
    font-weight: 600;
    color: var(--color-text-secondary);
    width: 250px;
    background: rgba(255, 255, 255, 0.02);
}

.cg-badge-unknown {
    display: inline-block;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    background: rgba(255, 255, 255, 0.05);
    font-style: italic;
}

/* ==========================================================================
   Affiliate Disclosure & Alerts
   ========================================================================== */
.cg-disclosure-bar {
    background: rgba(245, 158, 11, 0.08);
    border-left: 3px solid var(--color-accent-amber);
    padding: 12px 20px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.85rem;
    color: #e2e8f0;
    margin: 24px 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.cg-disclosure-bar svg {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    fill: var(--color-accent-amber);
}

/* Pros and Cons Boxes */
.cg-pros-cons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin: 32px 0;
}

.cg-pro-box, .cg-con-box {
    border-radius: var(--radius-md);
    padding: 24px;
    border: 1px solid var(--color-border-subtle);
}

.cg-pro-box {
    background: rgba(16, 185, 129, 0.04);
    border-color: rgba(16, 185, 129, 0.2);
}

.cg-con-box {
    background: rgba(244, 63, 94, 0.04);
    border-color: rgba(244, 63, 94, 0.2);
}

.cg-pro-box h4 {
    color: var(--color-accent-emerald);
    font-family: var(--font-heading);
    font-weight: 700;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.cg-con-box h4 {
    color: var(--color-accent-rose);
    font-family: var(--font-heading);
    font-weight: 700;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.cg-pro-box ul, .cg-con-box ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.cg-pro-box li::before {
    content: "✓ ";
    color: var(--color-accent-emerald);
    font-weight: bold;
}

.cg-con-box li::before {
    content: "✕ ";
    color: var(--color-accent-rose);
    font-weight: bold;
}

/* ==========================================================================
   Pagination
   ========================================================================== */
.cg-pagination {
    margin: 48px 0;
    display: flex;
    justify-content: center;
}

.cg-pagination__list {
    display: flex;
    align-items: center;
    gap: 6px;
    list-style: none;
}

.cg-pagination__link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    font-weight: 600;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.cg-pagination__link:hover {
    border-color: var(--color-accent-emerald);
    color: var(--color-text-primary);
}

.cg-pagination__link--active {
    background: var(--color-accent-emerald);
    border-color: var(--color-accent-emerald);
    color: white;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.cg-footer {
    background: #080c14;
    border-top: 1px solid var(--color-border-subtle);
    padding: 64px 0 32px;
    margin-top: auto;
}

.cg-footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.cg-footer__col-title {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-primary);
    margin-bottom: 20px;
}

.cg-footer__links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cg-footer__links a {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.cg-footer__links a:hover {
    color: var(--color-accent-emerald);
}

.cg-footer__bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 28px;
    border-top: 1px solid var(--color-border-subtle);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    flex-wrap: wrap;
    gap: 16px;
}

/* Breadcrumbs */
.cg-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    padding: 16px 0;
}

.cg-breadcrumbs a {
    color: var(--color-text-secondary);
}

.cg-breadcrumbs a:hover {
    color: var(--color-accent-emerald);
}

.cg-breadcrumbs__sep {
    color: var(--color-text-muted);
}

/* Responsive adjustments */
@media (max-width: 992px) {
    .cg-hero__title {
        font-size: 2.5rem;
    }
    .cg-grid--3 {
        grid-template-columns: repeat(2, 1fr);
    }
    .cg-footer__grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .cg-nav {
        display: none; /* Mobile menu can toggle */
    }
    .cg-hero__title {
        font-size: 2rem;
    }
    .cg-pros-cons {
        grid-template-columns: 1fr;
    }
    .cg-grid {
        grid-template-columns: 1fr;
    }
    .cg-footer__grid {
        grid-template-columns: 1fr;
    }
}