/* ========================================
   SKIN LONGEVITY DESIGN SYSTEM
   Dr. Hamza Gemici - drhamzagemici.com
   Modern, premium medical aesthetics design
   ======================================== */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Playfair+Display:ital,wght@0,500;0,600;0,700;1,500&display=swap');

/* --- CSS Variables --- */
:root {
    --sl-primary: #047857;
    --sl-primary-light: #059669;
    --sl-primary-lighter: #d1fae5;
    --sl-primary-dark: #064e3b;
    --sl-accent: #d97706;
    --sl-accent-light: #f59e0b;
    --sl-accent-lighter: #fef3c7;
    --sl-text: #1f2937;
    --sl-text-secondary: #4b5563;
    --sl-text-muted: #6b7280;
    --sl-bg: #f9fafb;
    --sl-bg-warm: #fefce8;
    --sl-card-bg: #ffffff;
    --sl-border: #e5e7eb;
    --sl-border-light: #f3f4f6;
    --sl-gold: #b45309;
    --sl-gold-light: #fbbf24;
    --sl-radius: 16px;
    --sl-radius-sm: 10px;
    --sl-radius-xs: 6px;
    --sl-shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --sl-shadow: 0 4px 16px rgba(0,0,0,0.06), 0 1px 4px rgba(0,0,0,0.04);
    --sl-shadow-md: 0 8px 30px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.04);
    --sl-shadow-lg: 0 16px 50px rgba(0,0,0,0.1), 0 4px 12px rgba(0,0,0,0.05);
    --sl-shadow-glow: 0 0 40px rgba(4,120,87,0.15);
    --sl-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --sl-font-heading: 'Playfair Display', Georgia, serif;
    --sl-font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* --- Global Skin Longevity Styles --- */
.sl-page {
    font-family: var(--sl-font-body);
    color: var(--sl-text);
    background: var(--sl-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.sl-page * {
    box-sizing: border-box;
}

/* --- Typography --- */
.sl-serif {
    font-family: var(--sl-font-heading);
}

.sl-heading-xl {
    font-family: var(--sl-font-heading);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.sl-heading-lg {
    font-family: var(--sl-font-heading);
    font-size: clamp(2rem, 3.5vw, 3rem);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.015em;
}

.sl-heading-md {
    font-family: var(--sl-font-heading);
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    font-weight: 600;
    line-height: 1.3;
}

.sl-heading-sm {
    font-family: var(--sl-font-body);
    font-size: 1.125rem;
    font-weight: 700;
    line-height: 1.4;
}

.sl-body-lg {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--sl-text-secondary);
}

.sl-body {
    font-size: 1rem;
    line-height: 1.75;
    color: var(--sl-text-secondary);
}

.sl-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* --- Layout --- */
.sl-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.sl-container-narrow {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
}

.sl-section {
    padding: 80px 0;
}

.sl-section-sm {
    padding: 60px 0;
}

/* --- Hero Sections --- */
.sl-hero {
    position: relative;
    padding: 140px 0 80px;
    overflow: hidden;
    background: linear-gradient(135deg, #064e3b 0%, #047857 40%, #059669 70%, #0d9488 100%);
}

.sl-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(255,255,255,0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(251,191,36,0.1) 0%, transparent 40%);
    pointer-events: none;
}

.sl-hero::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 80px;
    background: var(--sl-bg);
    clip-path: ellipse(55% 100% at 50% 100%);
}

.sl-hero-content {
    position: relative;
    z-index: 2;
}

.sl-hero .sl-label {
    color: rgba(255,255,255,0.7);
    margin-bottom: 16px;
    display: inline-block;
}

.sl-hero .sl-heading-xl {
    color: #fff;
    margin-bottom: 20px;
}

.sl-hero .sl-body-lg {
    color: rgba(255,255,255,0.85);
    max-width: 640px;
}

/* --- Hero Variant: Article Page --- */
.sl-hero-article {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, #064e3b 0%, #047857 50%, #065f46 100%);
}

.sl-hero-article::after {
    height: 60px;
}

/* --- Breadcrumb --- */
.sl-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    margin-bottom: 32px;
}

.sl-breadcrumb a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    transition: color 0.2s;
}

.sl-breadcrumb a:hover {
    color: rgba(255,255,255,0.9);
}

.sl-breadcrumb .separator {
    color: rgba(255,255,255,0.3);
}

.sl-breadcrumb .current {
    color: rgba(255,255,255,0.9);
    font-weight: 500;
}

/* --- Cards --- */
.sl-card {
    background: var(--sl-card-bg);
    border-radius: var(--sl-radius);
    border: 1px solid var(--sl-border-light);
    box-shadow: var(--sl-shadow-sm);
    transition: var(--sl-transition);
    overflow: hidden;
}

.sl-card:hover {
    box-shadow: var(--sl-shadow-md);
    transform: translateY(-4px);
    border-color: var(--sl-border);
}

.sl-card-body {
    padding: 32px;
}

.sl-card-accent {
    position: relative;
}

.sl-card-accent::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--sl-primary), var(--sl-accent-light));
    border-radius: var(--sl-radius) var(--sl-radius) 0 0;
}

/* --- Feature Cards (Grid) --- */
.sl-feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.sl-feature-card {
    background: var(--sl-card-bg);
    border-radius: var(--sl-radius);
    padding: 32px;
    border: 1px solid var(--sl-border-light);
    box-shadow: var(--sl-shadow-sm);
    transition: var(--sl-transition);
    position: relative;
    overflow: hidden;
}

.sl-feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: linear-gradient(to bottom, var(--sl-primary), var(--sl-accent-light));
    transition: height 0.4s ease;
    border-radius: 0 0 4px 0;
}

.sl-feature-card:hover::before {
    height: 100%;
}

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

.sl-feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 20px;
    transition: var(--sl-transition);
}

.sl-feature-card:hover .sl-feature-icon {
    transform: scale(1.1);
}

.sl-icon-emerald {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
    color: var(--sl-primary);
}

.sl-icon-amber {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    color: var(--sl-accent);
}

.sl-icon-blue {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    color: #2563eb;
}

.sl-icon-rose {
    background: linear-gradient(135deg, #ffe4e6, #fecdd3);
    color: #e11d48;
}

.sl-icon-purple {
    background: linear-gradient(135deg, #ede9fe, #ddd6fe);
    color: #7c3aed;
}

.sl-icon-teal {
    background: linear-gradient(135deg, #ccfbf1, #99f6e4);
    color: #0f766e;
}

/* --- Buttons --- */
.sl-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--sl-radius-sm);
    font-weight: 600;
    font-size: 0.9375rem;
    text-decoration: none;
    transition: var(--sl-transition);
    cursor: pointer;
    border: none;
    font-family: var(--sl-font-body);
    line-height: 1;
}

.sl-btn-primary {
    background: linear-gradient(135deg, var(--sl-primary) 0%, var(--sl-primary-light) 100%);
    color: #fff;
    box-shadow: 0 4px 14px rgba(4,120,87,0.3);
}

.sl-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(4,120,87,0.4);
    color: #fff;
}

.sl-btn-accent {
    background: linear-gradient(135deg, var(--sl-accent) 0%, var(--sl-accent-light) 100%);
    color: #fff;
    box-shadow: 0 4px 14px rgba(217,119,6,0.3);
}

.sl-btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(217,119,6,0.4);
    color: #fff;
}

.sl-btn-outline {
    background: transparent;
    color: var(--sl-primary);
    border: 2px solid var(--sl-primary);
}

.sl-btn-outline:hover {
    background: var(--sl-primary);
    color: #fff;
    transform: translateY(-2px);
}

.sl-btn-white {
    background: #fff;
    color: var(--sl-primary-dark);
    box-shadow: 0 4px 14px rgba(0,0,0,0.1);
}

.sl-btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.sl-btn-ghost {
    background: rgba(255,255,255,0.15);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.3);
    backdrop-filter: blur(10px);
}

.sl-btn-ghost:hover {
    background: rgba(255,255,255,0.25);
    color: #fff;
    transform: translateY(-2px);
}

.sl-btn-lg {
    padding: 18px 36px;
    font-size: 1rem;
    border-radius: 12px;
}

/* --- Section Titles --- */
.sl-section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.sl-section-header .sl-label {
    color: var(--sl-primary);
    margin-bottom: 12px;
    display: block;
}

.sl-section-header .sl-heading-lg {
    color: var(--sl-text);
    margin-bottom: 16px;
}

.sl-section-header .sl-body-lg {
    color: var(--sl-text-muted);
}

/* --- Divider with icon --- */
.sl-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 48px 0;
}

.sl-divider::before,
.sl-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--sl-border), transparent);
}

.sl-divider i {
    color: var(--sl-primary);
    font-size: 0.875rem;
    opacity: 0.5;
}

/* --- Article Prose --- */
.sl-prose h2 {
    font-family: var(--sl-font-heading);
    font-size: clamp(1.75rem, 2.5vw, 2.25rem);
    font-weight: 600;
    color: var(--sl-text);
    margin: 48px 0 20px;
    line-height: 1.25;
}

.sl-prose h3 {
    font-family: var(--sl-font-body);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--sl-text);
    margin: 32px 0 12px;
}

.sl-prose p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--sl-text-secondary);
    margin-bottom: 20px;
}

.sl-prose strong {
    color: var(--sl-text);
    font-weight: 600;
}

/* --- Callout / Quote Box --- */
.sl-callout {
    position: relative;
    padding: 28px 32px;
    border-radius: var(--sl-radius);
    margin: 32px 0;
}

.sl-callout-emerald {
    background: linear-gradient(135deg, #ecfdf5, #d1fae5);
    border: 1px solid #a7f3d0;
}

.sl-callout-amber {
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
    border: 1px solid #fde68a;
}

.sl-callout-blue {
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    border: 1px solid #93c5fd;
}

.sl-callout-quote {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border-left: 4px solid var(--sl-primary);
    padding-left: 28px;
}

.sl-callout-quote::before {
    content: '\201C';
    font-family: var(--sl-font-heading);
    font-size: 4rem;
    line-height: 1;
    color: var(--sl-primary);
    opacity: 0.2;
    position: absolute;
    top: 8px;
    left: 16px;
}

/* --- Comparison Table (Modern) --- */
.sl-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin: 32px 0;
}

.sl-comparison-col {
    border-radius: var(--sl-radius);
    overflow: hidden;
    border: 1px solid var(--sl-border-light);
}

.sl-comparison-header {
    padding: 20px 24px;
    font-weight: 700;
    font-size: 1.125rem;
    text-align: center;
}

.sl-comparison-col:first-child .sl-comparison-header {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    color: #991b1b;
}

.sl-comparison-col:last-child .sl-comparison-header {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
    color: #064e3b;
}

.sl-comparison-item {
    padding: 16px 24px;
    border-top: 1px solid var(--sl-border-light);
    font-size: 0.9375rem;
    line-height: 1.6;
    background: #fff;
}

.sl-comparison-item:nth-child(even) {
    background: #f9fafb;
}

/* --- Hallmark Grid --- */
.sl-hallmark-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.sl-hallmark-card {
    background: var(--sl-card-bg);
    border-radius: var(--sl-radius-sm);
    padding: 24px;
    border: 1px solid var(--sl-border-light);
    transition: var(--sl-transition);
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.sl-hallmark-card:hover {
    box-shadow: var(--sl-shadow);
    border-color: var(--sl-primary-lighter);
    transform: translateY(-2px);
}

.sl-hallmark-num {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--sl-primary), var(--sl-primary-light));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
}

.sl-hallmark-title {
    font-weight: 700;
    font-size: 0.9375rem;
    color: var(--sl-text);
    margin-bottom: 4px;
}

.sl-hallmark-desc {
    font-size: 0.8125rem;
    line-height: 1.6;
    color: var(--sl-text-muted);
}

/* --- Protocol Tiers --- */
.sl-tier {
    position: relative;
    padding: 40px;
    border-radius: var(--sl-radius);
    background: var(--sl-card-bg);
    border: 1px solid var(--sl-border-light);
    box-shadow: var(--sl-shadow-sm);
    margin-bottom: 24px;
    overflow: hidden;
}

.sl-tier::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 6px;
    height: 100%;
    border-radius: 6px 0 0 6px;
}

.sl-tier-1::before {
    background: linear-gradient(to bottom, #10b981, #34d399);
}

.sl-tier-2::before {
    background: linear-gradient(to bottom, #3b82f6, #60a5fa);
}

.sl-tier-3::before {
    background: linear-gradient(to bottom, #8b5cf6, #a78bfa);
}

.sl-tier-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.sl-tier-1 .sl-tier-badge {
    background: #ecfdf5;
    color: #047857;
}

.sl-tier-2 .sl-tier-badge {
    background: #eff6ff;
    color: #1d4ed8;
}

.sl-tier-3 .sl-tier-badge {
    background: #f5f3ff;
    color: #6d28d9;
}

.sl-tier-title {
    font-family: var(--sl-font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--sl-text);
    margin-bottom: 12px;
}

.sl-tier-desc {
    font-size: 1rem;
    color: var(--sl-text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
}

.sl-tier-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
}

.sl-tier-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    background: #f9fafb;
    border-radius: var(--sl-radius-xs);
    font-size: 0.9375rem;
    transition: background 0.2s;
}

.sl-tier-item:hover {
    background: #f3f4f6;
}

.sl-tier-item-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
    margin-top: 1px;
}

.sl-tier-item strong {
    color: var(--sl-text);
    display: block;
    font-size: 0.875rem;
    margin-bottom: 2px;
}

.sl-tier-item span {
    color: var(--sl-text-muted);
    font-size: 0.8125rem;
    line-height: 1.5;
}

/* --- Stats Bar --- */
.sl-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1px;
    background: var(--sl-border);
    border-radius: var(--sl-radius);
    overflow: hidden;
    box-shadow: var(--sl-shadow-sm);
}

.sl-stat {
    background: var(--sl-card-bg);
    padding: 28px 24px;
    text-align: center;
}

.sl-stat-value {
    font-family: var(--sl-font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--sl-primary);
    line-height: 1;
    margin-bottom: 6px;
}

.sl-stat-label {
    font-size: 0.8125rem;
    color: var(--sl-text-muted);
    font-weight: 500;
}

/* --- Sidebar (Sticky) --- */
.sl-sidebar-sticky {
    position: sticky;
    top: 100px;
}

.sl-sidebar-card {
    background: var(--sl-card-bg);
    border-radius: var(--sl-radius);
    border: 1px solid var(--sl-border-light);
    box-shadow: var(--sl-shadow);
    overflow: hidden;
    margin-bottom: 24px;
}

.sl-sidebar-card-header {
    padding: 20px 24px;
    background: linear-gradient(135deg, var(--sl-primary-dark), var(--sl-primary));
    color: #fff;
}

.sl-sidebar-card-header h3 {
    font-family: var(--sl-font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
}

.sl-sidebar-card-body {
    padding: 24px;
}

.sl-sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--sl-radius-xs);
    text-decoration: none;
    color: var(--sl-text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: var(--sl-transition);
    margin-bottom: 4px;
}

.sl-sidebar-link:hover {
    background: var(--sl-primary-lighter);
    color: var(--sl-primary);
}

.sl-sidebar-link i {
    width: 20px;
    text-align: center;
    color: var(--sl-primary);
    font-size: 0.875rem;
}

/* --- CTA Section --- */
.sl-cta-section {
    position: relative;
    padding: 80px 0;
    background: linear-gradient(135deg, #064e3b 0%, #047857 50%, #065f46 100%);
    overflow: hidden;
}

.sl-cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(251,191,36,0.1) 0%, transparent 50%);
    pointer-events: none;
}

.sl-cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
}

.sl-cta-content h2 {
    font-family: var(--sl-font-heading);
    color: #fff;
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    margin-bottom: 16px;
}

.sl-cta-content p {
    color: rgba(255,255,255,0.8);
    font-size: 1.0625rem;
    line-height: 1.7;
    margin-bottom: 32px;
}

/* --- Pills / Tags --- */
.sl-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8125rem;
    font-weight: 600;
}

.sl-pill-emerald {
    background: #ecfdf5;
    color: #047857;
}

.sl-pill-amber {
    background: #fffbeb;
    color: #b45309;
}

.sl-pill-new {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
    color: #047857;
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 10px;
}

/* --- Module Cards (Training) --- */
.sl-module-card {
    background: var(--sl-card-bg);
    border-radius: var(--sl-radius);
    border: 1px solid var(--sl-border-light);
    padding: 32px;
    transition: var(--sl-transition);
    position: relative;
    overflow: hidden;
}

.sl-module-card:hover {
    box-shadow: var(--sl-shadow-md);
    border-color: var(--sl-primary-lighter);
    transform: translateY(-3px);
}

.sl-module-num {
    position: absolute;
    top: -10px;
    right: -5px;
    font-family: var(--sl-font-heading);
    font-size: 5rem;
    font-weight: 700;
    color: var(--sl-primary);
    opacity: 0.06;
    line-height: 1;
}

.sl-module-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
    background: var(--sl-primary-lighter);
    color: var(--sl-primary);
}

.sl-module-title {
    font-family: var(--sl-font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--sl-text);
    margin-bottom: 8px;
}

.sl-module-desc {
    font-size: 0.9375rem;
    color: var(--sl-text-muted);
    line-height: 1.6;
}

/* --- Quiz Intro --- */
.sl-quiz-hero {
    position: relative;
    padding: 140px 0 100px;
    background: linear-gradient(135deg, #1e3a5f 0%, #0f766e 50%, #047857 100%);
    overflow: hidden;
    text-align: center;
}

.sl-quiz-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(255,255,255,0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(251,191,36,0.08) 0%, transparent 40%);
    pointer-events: none;
}

.sl-quiz-hero::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    clip-path: ellipse(55% 100% at 50% 100%);
}

/* --- Scroll Animation --- */
.sl-animate {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.sl-animate.sl-visible {
    opacity: 1;
    transform: translateY(0);
}

.sl-animate-delay-1 { transition-delay: 0.1s; }
.sl-animate-delay-2 { transition-delay: 0.2s; }
.sl-animate-delay-3 { transition-delay: 0.3s; }
.sl-animate-delay-4 { transition-delay: 0.4s; }

/* --- Table of Contents (Floating) --- */
.sl-toc {
    padding: 0;
    list-style: none;
    margin: 0;
}

.sl-toc li {
    margin-bottom: 2px;
}

.sl-toc a {
    display: block;
    padding: 10px 16px;
    border-radius: var(--sl-radius-xs);
    text-decoration: none;
    color: var(--sl-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--sl-transition);
    border-left: 2px solid transparent;
}

.sl-toc a:hover,
.sl-toc a.active {
    background: var(--sl-primary-lighter);
    color: var(--sl-primary);
    border-left-color: var(--sl-primary);
}

/* --- WhatsApp Float --- */
.sl-whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 24px;
    background: #25D366;
    color: #fff;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9375rem;
    box-shadow: 0 4px 20px rgba(37,211,102,0.4);
    transition: var(--sl-transition);
}

.sl-whatsapp-float:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 28px rgba(37,211,102,0.5);
    color: #fff;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .sl-hero {
        padding: 120px 0 60px;
    }

    .sl-hero::after {
        height: 40px;
    }

    .sl-section {
        padding: 48px 0;
    }

    .sl-comparison {
        grid-template-columns: 1fr;
    }

    .sl-feature-grid {
        grid-template-columns: 1fr;
    }

    .sl-hallmark-grid {
        grid-template-columns: 1fr;
    }

    .sl-tier {
        padding: 24px;
    }

    .sl-tier-items {
        grid-template-columns: 1fr;
    }

    .sl-card-body {
        padding: 24px;
    }

    .sl-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .sl-sidebar-sticky {
        position: static;
    }
}

@media (max-width: 480px) {
    .sl-heading-xl {
        font-size: 2rem;
    }

    .sl-stats {
        grid-template-columns: 1fr;
    }
}

/* --- Scroll animation observer script (inline) --- */
/* Add this JS to pages:
<script>
document.addEventListener('DOMContentLoaded', function() {
    const observer = new IntersectionObserver((entries) => {
        entries.forEach(entry => {
            if (entry.isIntersecting) {
                entry.target.classList.add('sl-visible');
            }
        });
    }, { threshold: 0.1, rootMargin: '0px 0px -40px 0px' });
    document.querySelectorAll('.sl-animate').forEach(el => observer.observe(el));
});
</script>
*/