/** * Copyright (c) 2026 DNA Genics, S.L. All rights reserved.
 * 
 * CompareSamples Cinematic Styles
 * A narrative-driven, emotionally resonant design for trait comparison.
 * Matches the aesthetic of TraitsCategoryList.cshtml
 */

/* ========================================
   CSS Custom Properties - Warm Palette
   ======================================== */
:root {
    /* Primary Colors */
    --tcs-cream: #FAF8F5;
    --tcs-warm-white: #FFFBF7;
    --tcs-terracotta: #C4A484;
    --tcs-terracotta-light: #D4B494;
    --tcs-terracotta-dark: #A48464;
    --tcs-sage: #87A878;
    --tcs-sage-light: #A7C898;
    --tcs-sage-dark: #678858;
    --tcs-charcoal: #2D3436;
    --tcs-charcoal-light: #4D5456;
    
    /* Accent Colors */
    --tcs-gold: #D4AF37;
    --tcs-copper: #B87333;
    --tcs-forest: #355E3B;
    
    /* Comparison Colors */
    --tcs-match: #22c55e;
    --tcs-match-light: #86efac;
    --tcs-differ: #f59e0b;
    --tcs-differ-light: #fcd34d;
    --tcs-missing: #94a3b8;
    
    /* Neutral Colors */
    --tcs-gray-50: #F9FAFB;
    --tcs-gray-100: #F3F4F6;
    --tcs-gray-200: #E5E7EB;
    --tcs-gray-300: #D1D5DB;
    --tcs-gray-400: #9CA3AF;
    --tcs-gray-500: #6B7280;
    --tcs-gray-600: #4B5563;
    --tcs-gray-700: #374151;
    --tcs-gray-800: #1F2937;
    --tcs-gray-900: #111827;
    
    /* Predisposition Colors */
    --tcs-predisposition-very-high: #ef4444;
    --tcs-predisposition-high: #f97316;
    --tcs-predisposition-medium: #eab308;
    --tcs-predisposition-low: #84cc16;
    --tcs-predisposition-very-low: #22c55e;
    
    /* Shadows */
    --tcs-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --tcs-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --tcs-shadow-md: 0 10px 25px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --tcs-shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --tcs-shadow-warm: 0 10px 40px rgba(196, 164, 132, 0.15);
    --tcs-shadow-terracotta: 0 8px 30px rgba(196, 164, 132, 0.25);
    
    /* Typography */
    --tcs-font-display: 'Josefin Sans', system-ui, -apple-system, sans-serif;
    --tcs-font-body: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Transitions */
    --tcs-transition-fast: 150ms ease;
    --tcs-transition: 300ms ease;
    --tcs-transition-slow: 500ms ease;
}

/* ========================================
   Base & Main Container
   ======================================== */
.tcs-main {
    background: var(--tcs-warm-white);
    min-height: 100vh;
}

/* ========================================
   Hero Section
   ======================================== */
.tcs-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    color: white;
}

.tcs-hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: linear-gradient(135deg, rgba(45, 52, 54, 0.8) 0%, rgba(45, 52, 54, 0.92) 100%),
                url('/img/reports/traits/traits/traits-hero.webp') center/cover no-repeat;
    background-attachment: fixed;
}

@media (max-width: 991px) {
    .tcs-hero-bg {
        background-attachment: scroll;
    }
}

.tcs-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(196, 164, 132, 0.1) 0%,
        transparent 30%,
        transparent 70%,
        rgba(45, 52, 54, 0.3) 100%
    );
    pointer-events: none;
}

.tcs-hero-pattern {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 60% at 20% 40%, rgba(196, 164, 132, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 60% 80% at 80% 60%, rgba(135, 168, 120, 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.tcs-hero-particles {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(196, 164, 132, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(135, 168, 120, 0.1) 0%, transparent 40%);
    animation: tcsHeroParticles 20s ease-in-out infinite;
}

@keyframes tcsHeroParticles {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}

.tcs-hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 120px 20px 60px;
    max-width: 800px;
    margin: 0 auto;
}

.tcs-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(196, 164, 132, 0.2);
    border: 1px solid rgba(196, 164, 132, 0.4);
    color: var(--tcs-terracotta-light);
    padding: 0.5rem 1.25rem;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: tcsFadeInUp 0.8s ease-out 0.2s forwards;
}

.tcs-hero-title {
    font-family: var(--tcs-font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: white;
    opacity: 0;
    animation: tcsFadeInUp 0.8s ease-out 0.4s forwards;
}

.tcs-hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: rgba(255, 255, 255, 0.85) !important;
    line-height: 1.7;
    max-width: 500px;
    margin: 0 auto 2rem;
    font-weight: 400;
    opacity: 0;
    animation: tcsFadeInUp 0.8s ease-out 0.5s forwards;
}

/* Scroll Indicator */
.tcs-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.tcs-scroll-indicator i {
    margin-top: 8px;
    animation: tcs-bounce 2s ease-in-out infinite;
}

@keyframes tcs-bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(8px); }
    60% { transform: translateY(4px); }
}

.tcs-hero-description {
    font-size: clamp(0.95rem, 2vw, 1.1rem);
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0;
    animation: tcsFadeInUp 0.8s ease-out 0.6s forwards;
}

.tcs-hero-samples {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
    opacity: 0;
    animation: tcsFadeInUp 0.8s ease-out 0.7s forwards;
}

.tcs-hero-sample {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(135, 168, 120, 0.2);
    border: 1px solid rgba(135, 168, 120, 0.4);
    color: var(--tcs-sage-light);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
}

.tcs-hero-vs {
    width: 40px;
    height: 40px;
    background: rgba(196, 164, 132, 0.3);
    border: 2px solid var(--tcs-terracotta);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.75rem;
    color: var(--tcs-terracotta-light);
}

.tcs-hero-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    opacity: 0;
    animation: tcsFadeInUp 0.8s ease-out 0.8s forwards;
}

.tcs-hero-stat {
    text-align: center;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    min-width: 100px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--tcs-transition);
}

.tcs-hero-stat:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

.tcs-stat-number {
    display: block;
    font-family: var(--tcs-font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--tcs-terracotta-light);
    line-height: 1.2;
}

.tcs-stat-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.25rem;
}

@keyframes tcsFadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Section Base Styles
   ======================================== */
.tcs-section {
    padding: 5rem 0;
}

.tcs-section-light {
    background: var(--tcs-warm-white);
}

.tcs-section-warm {
    background: linear-gradient(180deg, var(--tcs-cream) 0%, var(--tcs-warm-white) 100%);
}

.tcs-section-narrative {
    background: var(--tcs-charcoal);
    color: white;
    position: relative;
    overflow: hidden;
}

.tcs-section-bg-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(196, 164, 132, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(135, 168, 120, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.tcs-section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.tcs-section-label {
    display: inline-block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--tcs-terracotta);
    margin-bottom: 0.75rem;
}

.tcs-section-narrative .tcs-section-label {
    color: var(--tcs-terracotta-light);
}

.tcs-section-title {
    font-family: var(--tcs-font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 600;
    color: var(--tcs-charcoal);
    margin-bottom: 1rem;
}

.tcs-section-narrative .tcs-section-title {
    color: white;
}

.tcs-section-subtitle {
    font-size: 1.1rem;
    color: var(--tcs-gray-600);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

.tcs-section-narrative .tcs-section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

/* ========================================
   Sample Selection Section
   ======================================== */
.tcs-selection-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto;
    gap: 1.5rem;
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.tcs-sample-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--tcs-shadow-warm);
    transition: var(--tcs-transition);
    border: 2px solid var(--tcs-gray-200);
}

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

.tcs-sample-card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.tcs-sample-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--tcs-terracotta-light) 0%, var(--tcs-terracotta) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
}

.tcs-sample-card-header h4 {
    font-family: var(--tcs-font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--tcs-charcoal);
    margin: 0;
}

.tcs-sample-card-header p {
    font-size: 0.85rem;
    color: var(--tcs-gray-500);
    margin: 0;
}

.tcs-sample-select {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--tcs-gray-200);
    border-radius: 10px;
    font-size: 1rem;
    transition: var(--tcs-transition);
    background: var(--tcs-gray-50);
    cursor: pointer;
}

.tcs-sample-select:focus {
    outline: none;
    border-color: var(--tcs-terracotta);
    background: white;
    box-shadow: 0 0 0 4px rgba(196, 164, 132, 0.1);
}

.tcs-comparison-arrow {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--tcs-terracotta) 0%, var(--tcs-terracotta-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    box-shadow: var(--tcs-shadow-terracotta);
    animation: tcsArrowPulse 2s ease-in-out infinite;
}

@keyframes tcsArrowPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.tcs-compare-btn {
    background: linear-gradient(135deg, var(--tcs-sage) 0%, var(--tcs-sage-dark) 100%);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--tcs-transition);
    box-shadow: var(--tcs-shadow);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.tcs-compare-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--tcs-shadow-lg);
}

.tcs-compare-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Empty State */
.tcs-empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: var(--tcs-shadow-warm);
}

.tcs-empty-icon {
    width: 80px;
    height: 80px;
    background: var(--tcs-cream);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.tcs-empty-icon i {
    font-size: 2rem;
    color: var(--tcs-gray-400);
}

.tcs-empty-state h4 {
    font-family: var(--tcs-font-display);
    font-size: 1.25rem;
    color: var(--tcs-charcoal);
    margin-bottom: 0.5rem;
}

.tcs-empty-state p {
    color: var(--tcs-gray-500);
    margin-bottom: 1.5rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* ========================================
   Stats Dashboard
   ======================================== */
.tcs-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.tcs-stat-card {
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--tcs-shadow-warm);
    transition: var(--tcs-transition);
    border: 2px solid transparent;
}

.tcs-stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--tcs-shadow-md);
}

.tcs-stat-card-primary {
    border-color: var(--tcs-terracotta-light);
}

.tcs-stat-card-success {
    border-color: var(--tcs-sage);
}

.tcs-stat-card-warning {
    border-color: var(--tcs-gold);
}

.tcs-stat-card-info {
    border-color: var(--tcs-terracotta);
}

.tcs-stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.25rem;
    color: white;
}

.tcs-stat-card-primary .stat-icon {
    background: linear-gradient(135deg, var(--tcs-terracotta-light), var(--tcs-terracotta));
}

.tcs-stat-card-success .stat-icon {
    background: linear-gradient(135deg, var(--tcs-sage-light), var(--tcs-sage));
}

.tcs-stat-card-warning .stat-icon {
    background: linear-gradient(135deg, var(--tcs-gold), var(--tcs-copper));
}

.tcs-stat-card-info .stat-icon {
    background: linear-gradient(135deg, var(--tcs-terracotta), var(--tcs-terracotta-dark));
}

.tcs-stat-card .stat-value {
    font-family: var(--tcs-font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--tcs-charcoal);
    margin-bottom: 0.25rem;
}

.tcs-stat-card .stat-label {
    font-size: 0.85rem;
    color: var(--tcs-gray-500);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Summary Grid */
.tcs-summary-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.tcs-summary-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: white;
    border-radius: 12px;
    padding: 1rem;
    cursor: pointer;
    transition: var(--tcs-transition);
    box-shadow: var(--tcs-shadow-sm);
    border: 1px solid var(--tcs-gray-100);
}

.tcs-summary-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--tcs-shadow-md);
    border-color: var(--tcs-terracotta-light);
}

.tcs-summary-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
    background: var(--tcs-cream);
}

.tcs-summary-icon img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.tcs-summary-icon i {
    font-size: 1.25rem;
    color: var(--tcs-terracotta);
}

.tcs-summary-content {
    flex-grow: 1;
    min-width: 0;
}

.tcs-summary-title {
    font-family: var(--tcs-font-display);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--tcs-charcoal);
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tcs-summary-description {
    font-size: 0.8rem;
    color: var(--tcs-gray-500);
    margin: 0;
}

.tcs-summary-badge {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.85rem;
    flex-shrink: 0;
}

/* ========================================
   Guidance Section
   ======================================== */
.tcs-guidance-cards {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.tcs-guidance-card {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 12px;
    transition: var(--tcs-transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.tcs-guidance-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(4px);
}

.tcs-guidance-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--tcs-terracotta) 0%, var(--tcs-terracotta-dark) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
    font-family: var(--tcs-font-display);
}

.tcs-guidance-content h4 {
    font-family: var(--tcs-font-display);
    font-size: 1.05rem;
    font-weight: 600;
    color: white;
    margin-bottom: 0.5rem;
}

.tcs-guidance-content p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin: 0;
}

.tcs-guidance-callout {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: rgba(196, 164, 132, 0.15);
    border: 1px solid var(--tcs-terracotta-light);
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.tcs-guidance-callout i {
    color: var(--tcs-terracotta-light);
    font-size: 1.25rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.tcs-guidance-callout p {
    margin: 0;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ========================================
   Filter Bar
   ======================================== */
.tcs-filter-bar {
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--tcs-shadow-warm);
    margin-bottom: 2rem;
}

.tcs-filter-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: flex-end;
}

.tcs-filter-group {
    flex: 1;
    min-width: 200px;
}

.tcs-filter-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--tcs-charcoal);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tcs-filter-label i {
    color: var(--tcs-terracotta);
}

.tcs-search-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--tcs-gray-200);
    border-radius: 10px;
    font-size: 0.95rem;
    transition: var(--tcs-transition);
    background: var(--tcs-gray-50);
}

.tcs-search-input:focus {
    outline: none;
    border-color: var(--tcs-terracotta);
    background: white;
    box-shadow: 0 0 0 4px rgba(196, 164, 132, 0.1);
}

.tcs-filter-select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--tcs-gray-200);
    border-radius: 10px;
    font-size: 0.95rem;
    transition: var(--tcs-transition);
    background: var(--tcs-gray-50);
    cursor: pointer;
}

.tcs-filter-select:focus {
    outline: none;
    border-color: var(--tcs-terracotta);
    background: white;
    box-shadow: 0 0 0 4px rgba(196, 164, 132, 0.1);
}

.tcs-view-toggle {
    display: flex;
    gap: 0.5rem;
}

.tcs-view-btn {
    padding: 0.6rem 1rem;
    border: 2px solid var(--tcs-gray-200);
    border-radius: 8px;
    background: white;
    color: var(--tcs-gray-600);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--tcs-transition);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.tcs-view-btn:hover {
    border-color: var(--tcs-terracotta-light);
    color: var(--tcs-terracotta);
}

.tcs-view-btn.active {
    background: linear-gradient(135deg, var(--tcs-terracotta) 0%, var(--tcs-terracotta-dark) 100%);
    color: white;
    border-color: var(--tcs-terracotta);
}

.tcs-filter-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--tcs-gray-100);
    margin-top: 1rem;
}

.tcs-clear-filters {
    padding: 0.5rem 1rem;
    border: 1px solid var(--tcs-gray-300);
    border-radius: 8px;
    background: white;
    color: var(--tcs-gray-600);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--tcs-transition);
}

.tcs-clear-filters:hover {
    background: var(--tcs-gray-100);
}

.tcs-filter-count {
    font-size: 0.85rem;
    color: var(--tcs-gray-500);
}

/* ========================================
   Results Header
   ======================================== */
.tcs-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.tcs-results-title {
    font-family: var(--tcs-font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--tcs-charcoal);
    margin: 0;
}

.tcs-results-subtitle {
    font-size: 0.9rem;
    color: var(--tcs-gray-500);
    margin-top: 0.25rem;
}

.tcs-results-actions {
    display: flex;
    gap: 0.75rem;
}

/* ========================================
   Comparison Cards Grid
   ======================================== */
.tcs-comparison-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.tcs-comparison-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--tcs-shadow-warm);
    transition: var(--tcs-transition);
    border: 2px solid transparent;
}

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

.tcs-comparison-card.different {
    border-color: var(--tcs-differ);
}

.tcs-comparison-card.same {
    border-color: var(--tcs-match);
}

.tcs-card-header {
    background: linear-gradient(135deg, var(--tcs-charcoal) 0%, var(--tcs-charcoal-light) 100%);
    color: white;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.tcs-card-header-content {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
    min-width: 0;
}

.tcs-card-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tcs-card-icon img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.tcs-card-icon i {
    font-size: 1.25rem;
    color: white;
}

.tcs-card-title {
    font-family: var(--tcs-font-display);
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tcs-card-badge {
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    flex-shrink: 0;
}

.tcs-card-badge.different {
    background: var(--tcs-differ);
    color: white;
}

.tcs-card-badge.same {
    background: var(--tcs-match);
    color: white;
}

.tcs-card-badge.missing {
    background: var(--tcs-missing);
    color: white;
}

.tcs-card-body {
    padding: 1.5rem;
}

.tcs-samples-comparison {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1rem;
    align-items: stretch;
}

.tcs-sample-result {
    background: var(--tcs-gray-50);
    border-radius: 12px;
    padding: 1rem;
    border: 1px solid var(--tcs-gray-200);
    transition: var(--tcs-transition);
}

.tcs-sample-result:hover {
    border-color: var(--tcs-terracotta-light);
}

.tcs-sample-result.no-data {
    opacity: 0.7;
    background: repeating-linear-gradient(
        45deg,
        var(--tcs-gray-50),
        var(--tcs-gray-50) 10px,
        var(--tcs-gray-100) 10px,
        var(--tcs-gray-100) 20px
    );
}

.tcs-sample-name {
    font-family: var(--tcs-font-display);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--tcs-charcoal);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tcs-sample-name i {
    color: var(--tcs-terracotta);
}

.tcs-predisposition-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.tcs-predisposition-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.75rem;
}

.tcs-predisposition-icon.very-positive {
    background: var(--tcs-predisposition-very-low);
}

.tcs-predisposition-icon.positive {
    background: var(--tcs-predisposition-low);
}

.tcs-predisposition-icon.neutral {
    background: var(--tcs-predisposition-medium);
}

.tcs-predisposition-icon.negative {
    background: var(--tcs-predisposition-high);
}

.tcs-predisposition-icon.very-negative {
    background: var(--tcs-predisposition-very-high);
}

.tcs-predisposition-text {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tcs-predisposition-text.very-positive {
    color: var(--tcs-predisposition-very-low);
}

.tcs-predisposition-text.positive {
    color: var(--tcs-predisposition-low);
}

.tcs-predisposition-text.neutral {
    color: var(--tcs-predisposition-medium);
}

.tcs-predisposition-text.negative {
    color: var(--tcs-predisposition-high);
}

.tcs-predisposition-text.very-negative {
    color: var(--tcs-predisposition-very-high);
}

.tcs-result-description {
    font-size: 0.85rem;
    color: var(--tcs-gray-600);
    line-height: 1.5;
    margin: 0;
}

.tcs-vs-divider {
    display: flex;
    align-items: center;
    justify-content: center;
}

.tcs-vs-circle {
    width: 36px;
    height: 36px;
    background: var(--tcs-cream);
    border: 2px solid var(--tcs-terracotta-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--tcs-terracotta);
}

.tcs-card-footer {
    padding: 1rem 1.5rem;
    background: var(--tcs-gray-50);
    border-top: 1px solid var(--tcs-gray-200);
    display: flex;
    justify-content: center;
}

.tcs-detail-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    background: linear-gradient(135deg, var(--tcs-terracotta) 0%, var(--tcs-terracotta-dark) 100%);
    color: white;
    border: none;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--tcs-transition);
    cursor: pointer;
}

.tcs-detail-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--tcs-shadow);
    color: white;
    text-decoration: none;
}

/* ========================================
   Comparison List View
   ======================================== */
.tcs-comparison-list {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--tcs-shadow-warm);
}

.tcs-list-table {
    width: 100%;
    border-collapse: collapse;
}

.tcs-list-table thead th {
    background: linear-gradient(135deg, var(--tcs-charcoal) 0%, var(--tcs-charcoal-light) 100%);
    color: white;
    padding: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
    text-align: left;
}

.tcs-list-table tbody tr {
    border-bottom: 1px solid var(--tcs-gray-200);
    transition: var(--tcs-transition);
}

.tcs-list-table tbody tr:hover {
    background: var(--tcs-cream);
}

.tcs-list-table tbody tr:last-child {
    border-bottom: none;
}

.tcs-list-table tbody td {
    padding: 1rem;
    vertical-align: middle;
}

.tcs-list-trait {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.tcs-list-trait-icon {
    width: 40px;
    height: 40px;
    background: var(--tcs-cream);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tcs-list-trait-icon img {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.tcs-list-trait-icon i {
    font-size: 1rem;
    color: var(--tcs-terracotta);
}

.tcs-list-trait-name {
    font-family: var(--tcs-font-display);
    font-weight: 600;
    color: var(--tcs-charcoal);
}

.tcs-list-result {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tcs-list-result-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.65rem;
}

.tcs-list-result-text {
    font-size: 0.85rem;
    color: var(--tcs-gray-700);
}

.tcs-list-badge {
    padding: 0.25rem 0.6rem;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.tcs-list-badge.different {
    background: rgba(245, 158, 11, 0.15);
    color: var(--tcs-differ);
}

.tcs-list-badge.same {
    background: rgba(34, 197, 94, 0.15);
    color: var(--tcs-match);
}

.tcs-list-badge.missing {
    background: rgba(148, 163, 184, 0.15);
    color: var(--tcs-missing);
}

.tcs-list-action-btn {
    padding: 0.4rem 0.75rem;
    background: transparent;
    border: 1px solid var(--tcs-gray-300);
    border-radius: 6px;
    color: var(--tcs-gray-600);
    transition: var(--tcs-transition);
    cursor: pointer;
}

.tcs-list-action-btn:hover {
    border-color: var(--tcs-terracotta);
    color: var(--tcs-terracotta);
}

/* ========================================
   Individual Trait Comparison
   ======================================== */
.tcs-individual-comparison {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--tcs-shadow-warm);
    margin-bottom: 2rem;
}

.tcs-individual-header {
    background: linear-gradient(135deg, var(--tcs-charcoal) 0%, var(--tcs-charcoal-light) 100%);
    color: white;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tcs-individual-header h3 {
    font-family: var(--tcs-font-display);
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.tcs-back-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: white;
    font-size: 0.85rem;
    text-decoration: none;
    transition: var(--tcs-transition);
}

.tcs-back-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    text-decoration: none;
}

.tcs-individual-body {
    padding: 2rem;
}

.tcs-trait-overview {
    background: var(--tcs-cream);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.tcs-trait-overview-icon {
    width: 80px;
    height: 80px;
    background: white;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--tcs-shadow-sm);
}

.tcs-trait-overview-icon img {
    width: 48px;
    height: 48px;
    object-fit: contain;
}

.tcs-trait-overview-icon i {
    font-size: 2rem;
    color: var(--tcs-terracotta);
}

.tcs-trait-overview-content h4 {
    font-family: var(--tcs-font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--tcs-charcoal);
    margin-bottom: 0.5rem;
}

.tcs-trait-overview-content p {
    color: var(--tcs-gray-600);
    line-height: 1.6;
    margin: 0;
}

.tcs-comparison-results {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.tcs-result-card {
    background: var(--tcs-gray-50);
    border-radius: 12px;
    padding: 1.5rem;
    border: 2px solid var(--tcs-gray-200);
}

.tcs-result-card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--tcs-gray-200);
}

.tcs-result-card-header i {
    color: var(--tcs-terracotta);
}

.tcs-result-card-header h5 {
    font-family: var(--tcs-font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--tcs-charcoal);
    margin: 0;
}

.tcs-result-interpretation {
    font-size: 1rem;
    color: var(--tcs-charcoal);
    font-weight: 500;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.tcs-confidence-score {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--tcs-gray-200);
}

.tcs-confidence-label {
    font-size: 0.85rem;
    color: var(--tcs-gray-500);
}

.tcs-confidence-stars {
    display: flex;
    gap: 0.25rem;
}

.tcs-confidence-stars .fa-star {
    color: var(--tcs-gray-300);
    font-size: 0.9rem;
}

.tcs-confidence-stars .fa-star.filled {
    color: var(--tcs-gold);
}

.tcs-comparison-summary {
    background: linear-gradient(135deg, var(--tcs-cream) 0%, #F5F0EB 100%);
    border-left: 4px solid var(--tcs-terracotta);
    border-radius: 0 12px 12px 0;
    padding: 1.5rem;
}

.tcs-comparison-summary h5 {
    font-family: var(--tcs-font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--tcs-charcoal);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tcs-comparison-summary h5 i {
    color: var(--tcs-terracotta);
}

.tcs-comparison-summary p {
    color: var(--tcs-gray-700);
    line-height: 1.6;
    margin: 0;
}

/* ========================================
   Buttons
   ======================================== */
.tcs-btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--tcs-terracotta) 0%, var(--tcs-terracotta-dark) 100%);
    color: white;
    padding: 0.875rem 1.75rem;
    font-weight: 600;
    border-radius: 50px;
    text-decoration: none;
    transition: var(--tcs-transition);
    border: none;
    cursor: pointer;
    box-shadow: var(--tcs-shadow);
    font-size: 0.95rem;
}

.tcs-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--tcs-shadow-lg);
    color: white;
    text-decoration: none;
}

.tcs-btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: transparent;
    color: var(--tcs-terracotta-dark);
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: 50px;
    text-decoration: none;
    transition: var(--tcs-transition);
    border: 2px solid var(--tcs-terracotta);
    cursor: pointer;
    font-size: 0.9rem;
}

.tcs-btn-secondary:hover {
    background: var(--tcs-terracotta);
    color: white;
    text-decoration: none;
}

.tcs-btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: white;
    color: var(--tcs-gray-700);
    padding: 0.6rem 1.25rem;
    font-weight: 500;
    border-radius: 8px;
    text-decoration: none;
    transition: var(--tcs-transition);
    border: 1px solid var(--tcs-gray-300);
    cursor: pointer;
    font-size: 0.9rem;
}

.tcs-btn-outline:hover {
    border-color: var(--tcs-terracotta);
    color: var(--tcs-terracotta);
    text-decoration: none;
}

/* ========================================
   CTA Footer Section
   ======================================== */
.tcs-cta-section {
    background: linear-gradient(135deg, var(--tcs-charcoal) 0%, #1a1f20 100%);
    padding: 4rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.tcs-cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(196, 164, 132, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(135, 168, 120, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.tcs-cta-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
}

.tcs-cta-title {
    font-family: var(--tcs-font-display);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    color: white;
    line-height: 1.4;
    margin-bottom: 1rem;
}

.tcs-cta-title span {
    color: var(--tcs-terracotta-light);
}

.tcs-cta-subtitle {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.tcs-cta-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

/* ========================================
   Animations for Scroll
   ======================================== */
.tcs-animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.tcs-animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   No Results Message
   ======================================== */
.tcs-no-results {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: var(--tcs-shadow-warm);
}

.tcs-no-results i {
    font-size: 3rem;
    color: var(--tcs-gray-300);
    margin-bottom: 1rem;
}

.tcs-no-results h4 {
    font-family: var(--tcs-font-display);
    font-size: 1.25rem;
    color: var(--tcs-charcoal);
    margin-bottom: 0.5rem;
}

.tcs-no-results p {
    color: var(--tcs-gray-500);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 991px) {
    .tcs-selection-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .tcs-comparison-arrow {
        margin: 0 auto;
    }
    
    .tcs-compare-btn {
        width: 100%;
        justify-content: center;
    }
    
    .tcs-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tcs-comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .tcs-hero {
        min-height: 45vh;
        padding: 100px 0 60px;
    }
}

@media (max-width: 767px) {
    .tcs-section {
        padding: 3rem 0;
    }
    
    .tcs-stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .tcs-summary-grid {
        grid-template-columns: 1fr;
    }
    
    .tcs-hero {
        min-height: auto;
        padding: 100px 0 50px;
        background-attachment: scroll;
    }
    
    .tcs-hero-stats {
        gap: 1rem;
    }
    
    .tcs-hero-stat {
        padding: 0.75rem 1rem;
        min-width: 80px;
    }
    
    .tcs-stat-number {
        font-size: 1.5rem;
    }
    
    .tcs-filter-row {
        flex-direction: column;
    }
    
    .tcs-filter-group {
        width: 100%;
    }
    
    .tcs-results-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .tcs-guidance-card {
        flex-direction: column;
        text-align: center;
    }
    
    .tcs-guidance-number {
        margin: 0 auto;
    }
    
    .tcs-samples-comparison {
        grid-template-columns: 1fr;
    }
    
    .tcs-vs-divider {
        padding: 0.5rem 0;
    }
    
    .tcs-comparison-results {
        grid-template-columns: 1fr;
    }
    
    .tcs-trait-overview {
        flex-direction: column;
        text-align: center;
    }
    
    .tcs-trait-overview-icon {
        margin: 0 auto;
    }
    
    /* List view mobile */
    .tcs-list-table thead {
        display: none;
    }
    
    .tcs-list-table tbody tr {
        display: block;
        padding: 1rem;
        margin-bottom: 1rem;
        border: 1px solid var(--tcs-gray-200);
        border-radius: 12px;
    }
    
    .tcs-list-table tbody td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.5rem 0;
        border-bottom: 1px solid var(--tcs-gray-100);
    }
    
    .tcs-list-table tbody td:last-child {
        border-bottom: none;
    }
    
    .tcs-list-table tbody td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--tcs-gray-600);
        font-size: 0.8rem;
        text-transform: uppercase;
    }
}

@media (max-width: 768px) {
    .tcs-hero-content {
        padding: 100px 20px 50px;
    }
}

@media (max-width: 575px) {
    .tcs-scroll-indicator {
        display: none;
    }
    
    .tcs-stats-grid {
        grid-template-columns: 1fr;
    }
    
    .tcs-cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .tcs-cta-buttons .tcs-btn-primary,
    .tcs-cta-buttons .tcs-btn-secondary {
        width: 100%;
        max-width: 280px;
    }
    
    .tcs-view-toggle {
        width: 100%;
    }
    
    .tcs-view-btn {
        flex: 1;
        justify-content: center;
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .tcs-hero,
    .tcs-cta-section,
    .tcs-filter-bar,
    .tcs-btn-primary,
    .tcs-btn-secondary,
    .tcs-btn-outline,
    .tcs-compare-btn,
    .tcs-detail-btn,
    .tcs-back-btn {
        display: none !important;
    }
    
    .tcs-section {
        padding: 1.5rem 0;
        break-inside: avoid;
    }
    
    .tcs-comparison-card,
    .tcs-stat-card,
    .tcs-sample-card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .tcs-main {
        background: white;
    }
}