/* ===================================
   CSS Variables & Reset
   =================================== */

:root {
    /* Color Palette - Technical Paper */
    --bg-primary: #faf8f3;
    --bg-secondary: #f5f2eb;
    --bg-card: #ffffff;
    --bg-hover: #fff9e6;
    
    --text-primary: #1a1a1a;
    --text-secondary: #4a4a4a;
    --text-muted: #7a7a7a;
    
    --accent-primary: #c41e3a;
    --accent-secondary: #8b0000;
    --accent-success: #2d5016;
    --accent-warning: #b8860b;
    --accent-danger: #c41e3a;
    
    --border-color: #d4cfc4;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
    
    /* Typography - Academic style */
    --font-primary: 'Iowan Old Style', 'Palatino Linotype', 'URW Palladio L', P052, serif;
    --font-secondary: 'Georgia', 'Times New Roman', serif;
    --font-mono: 'Courier New', Courier, monospace;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;
    
    /* Animation */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    background-image: 
        linear-gradient(90deg, rgba(212, 207, 196, 0.1) 1px, transparent 1px),
        linear-gradient(rgba(212, 207, 196, 0.1) 1px, transparent 1px);
    background-size: 20px 20px;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(196, 30, 58, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 0, 0, 0.02) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* ===================================
   Container & Layout
   =================================== */

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    position: relative;
    z-index: 1;
}

/* Paper margin notes */
.container::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--accent-primary);
    opacity: 0.2;
}

/* ===================================
   Hero Section
   =================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl) 0;
    position: relative;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3rem;
    font-weight: 400;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    letter-spacing: -0.02em;
    border-bottom: 3px solid var(--accent-primary);
    padding-bottom: var(--spacing-sm);
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-lg);
}

.hero-intro {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 650px;
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    text-align: justify;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   Buttons
   =================================== */

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--font-sans);
    text-decoration: none;
    border-radius: 2px;
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid var(--text-primary);
    position: relative;
    letter-spacing: 0.03em;
}

.btn:hover {
    transform: translateX(4px);
    box-shadow: -4px 4px 0 var(--text-primary);
}

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

.btn-primary:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    box-shadow: -4px 4px 0 var(--accent-primary);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--text-primary);
}

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

.btn-outline {
    background: transparent;
    color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.btn-outline:hover {
    background: var(--accent-primary);
    color: var(--bg-primary);
    box-shadow: -4px 4px 0 var(--accent-primary);
}

.btn-icon {
    font-size: 1rem;
}

/* ===================================
   Sections
   =================================== */

section {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--border-color);
}

.section-title {
    font-size: 2rem;
    font-weight: 400;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    position: relative;
    padding-left: var(--spacing-md);
}

.section-title::before {
    content: '§';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: 700;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-sans);
    font-style: italic;
}

/* ===================================
   Project Preview Card
   =================================== */

.project-preview {
    background: var(--bg-secondary);
}

.card {
    background: var(--bg-card);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-primary);
    transition: all var(--transition-base);
    margin-bottom: var(--spacing-lg);
}

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

.card-description {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
    text-align: justify;
}

.feature-list {
    list-style: none;
    margin-bottom: var(--spacing-lg);
    counter-reset: feature-counter;
}

.feature-list li {
    padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-sm) var(--spacing-lg);
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
    position: relative;
    border-bottom: 1px dotted var(--border-color);
}

.feature-list li::before {
    counter-increment: feature-counter;
    content: counter(feature-counter) ".";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: 700;
    font-family: var(--font-mono);
}

/* ===================================
   How It Works - Steps
   =================================== */

.how-it-works {
    background: var(--bg-primary);
}

.steps {
    display: grid;
    gap: var(--spacing-md);
}

.step {
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--text-primary);
    transition: all var(--transition-base);
}

.step:hover {
    border-left-color: var(--accent-primary);
    box-shadow: var(--shadow-sm);
}

.step-number {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--accent-primary);
    font-weight: 700;
    font-size: 1.5rem;
    font-family: var(--font-secondary);
    border: 2px solid var(--accent-primary);
    border-radius: 50%;
}

.step-content h3 {
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    font-family: var(--font-sans);
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ===================================
   Failures & Learning - Timeline
   =================================== */

.failures-learning {
    background: var(--bg-secondary);
}

.timeline {
    margin: 0 0 var(--spacing-xl) 0;
    position: relative;
    padding-left: var(--spacing-lg);
}

/* Vertical line */
.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--accent-primary);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-lg);
}

.timeline-marker {
    position: absolute;
    left: -8px;
    top: 0;
    width: 16px;
    height: 16px;
    background: var(--bg-primary);
    border: 3px solid var(--accent-primary);
    border-radius: 50%;
}

.timeline-content {
    background: var(--bg-card);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--accent-danger);
    transition: all var(--transition-base);
}

.timeline-content:hover {
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}

.timeline-content h3 {
    color: var(--accent-danger);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-sans);
    font-weight: 600;
    position: relative;
    display: inline-block;
}

.timeline-content h3::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, 
        var(--accent-danger) 0%, 
        var(--accent-danger) 50%, 
        transparent 50%, 
        transparent 100%
    );
    background-size: 8px 2px;
    background-repeat: repeat-x;
}

.timeline-issue {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-style: italic;
    font-size: 0.95rem;
}

.timeline-action {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
}

.timeline-result {
    color: var(--accent-success);
    font-weight: 500;
    font-size: 0.95rem;
}

.learning-note {
    background: var(--bg-card);
    padding: var(--spacing-lg);
    border: 2px solid var(--accent-success);
    border-style: double;
    position: relative;
}

.learning-note::before {
    content: '✓';
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    font-size: 2rem;
    color: var(--accent-success);
    opacity: 0.2;
}

.learning-note p {
    color: var(--text-secondary);
    font-size: 1.0625rem;
    line-height: 1.8;
}

/* ===================================
   Footer
   =================================== */

.footer {
    background: var(--bg-primary);
    padding: var(--spacing-xl) 0;
    border-top: 2px solid var(--text-primary);
    margin-top: var(--spacing-2xl);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-family: var(--font-sans);
    transition: all var(--transition-base);
    position: relative;
    padding-bottom: 2px;
}

.footer-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-primary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-base);
}

.footer-link:hover {
    color: var(--accent-primary);
}

.footer-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.footer-note {
    color: var(--text-muted);
    font-size: 0.875rem;
    text-align: center;
    font-style: italic;
}

/* ===================================
   Modal - Architecture Diagram
   =================================== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(250, 248, 243, 0.97);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    max-width: 700px;
    width: 100%;
    border: 2px solid var(--text-primary);
    box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.1);
    position: relative;
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 36px;
    height: 36px;
    border: 2px solid var(--text-primary);
    background: transparent;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-sans);
}

.modal-close:hover {
    background: var(--accent-danger);
    color: var(--bg-primary);
    border-color: var(--accent-danger);
}

.modal-content h2 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    font-weight: 400;
    border-bottom: 2px solid var(--accent-primary);
    padding-bottom: var(--spacing-sm);
}

.architecture-diagram {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.arch-layer {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.arch-box {
    background: transparent;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--text-primary);
    color: var(--text-primary);
    font-weight: 500;
    text-align: center;
    min-width: 150px;
    transition: all var(--transition-base);
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.arch-box:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
    transform: translate(3px, -3px);
    box-shadow: -3px 3px 0 var(--accent-primary);
}

.arch-arrow {
    text-align: center;
    font-size: 1.5rem;
    color: var(--accent-primary);
    line-height: 1;
    font-family: var(--font-mono);
}

.modal-description {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-intro {
        font-size: 1rem;
        text-align: left;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .card {
        padding: var(--spacing-md);
    }
    
    .step {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .step-number {
        margin: 0 auto;
    }
    
    .timeline {
        padding-left: var(--spacing-md);
    }
    
    .timeline-item {
        padding-left: var(--spacing-md);
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 2.5rem;
        --spacing-2xl: 4rem;
    }
    
    .hero-title {
        font-size: 1.875rem;
    }
    
    section {
        padding: var(--spacing-lg) 0;
    }
    
    .modal-content {
        padding: var(--spacing-lg);
    }
    
    .arch-box {
        min-width: 120px;
        font-size: 0.75rem;
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* ===================================
   War Stories Section
   =================================== */

.war-stories-grid {
    display: grid;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.war-story-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

.war-story-card:hover {
    box-shadow: var(--shadow-md);
}

.story-header {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.story-icon {
    font-size: 2.5rem;
    line-height: 1;
}

.story-title {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    font-family: var(--font-sans);
}

.story-meta {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-family: var(--font-mono);
}

.story-section {
    margin-bottom: var(--spacing-lg);
}

.story-section-title {
    font-size: 1.125rem;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-md);
    font-family: var(--font-sans);
    font-weight: 600;
}

.story-timeline {
    list-style: none;
    border-left: 2px solid var(--border-color);
    padding-left: var(--spacing-md);
}

.story-timeline li {
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-md);
    position: relative;
    line-height: 1.8;
    color: var(--text-secondary);
}

.story-timeline li::before {
    content: '•';
    position: absolute;
    left: -9px;
    color: var(--accent-primary);
    font-size: 1.5rem;
    line-height: 1;
}

.story-timeline strong {
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.impact-box {
    background: rgba(196, 30, 58, 0.1);
    border-left: 4px solid var(--accent-danger);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    line-height: 1.8;
    color: var(--text-secondary);
}

.decision-box {
    background: rgba(46, 125, 50, 0.1);
    border-left: 4px solid var(--accent-success);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    line-height: 1.8;
    color: var(--text-secondary);
}

.story-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.metric-pill {
    background: var(--bg-secondary);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-family: var(--font-mono);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

/* ===================================
   Rescue Mission Section
   =================================== */

.rescue-mission-container {
    margin-top: var(--spacing-xl);
}

.mission-overview {
    margin-bottom: var(--spacing-xl);
}

.mission-stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.mission-stat {
    background: var(--bg-card);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
    font-family: var(--font-sans);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.mission-phase {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.phase-title {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-family: var(--font-sans);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
}

.phase-content p {
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.mission-results {
    background: var(--bg-card);
    border: 2px solid var(--accent-success);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.results-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-md);
    align-items: center;
    margin: var(--spacing-lg) 0;
}

.result-card {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    text-align: center;
}

.result-before {
    font-size: 0.875rem;
    color: var(--accent-danger);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.result-after {
    font-size: 0.875rem;
    color: var(--accent-success);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.result-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-sans);
}

.result-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.result-arrow {
    font-size: 2rem;
    color: var(--accent-primary);
    text-align: center;
}

.lessons-learned {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.lessons-learned h4 {
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-family: var(--font-sans);
}

/* ===================================
   ADR Section
   =================================== */

.adr-grid {
    display: grid;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.adr-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: var(--spacing-xl);
}

.adr-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.adr-number {
    background: var(--accent-primary);
    color: white;
    padding: 0.5rem 1rem;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.875rem;
}

.adr-title {
    flex: 1;
    font-size: 1.25rem;
    color: var(--text-primary);
    font-family: var(--font-sans);
    margin: 0;
}

.adr-status {
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.adr-card .adr-status {
    background: rgba(46, 125, 50, 0.1);
    color: var(--accent-success);
    border: 1px solid var(--accent-success);
}

.adr-card:has(.adr-header .adr-status:contains("Rejected")) .adr-status,
.adr-status:last-child {
    background: rgba(196, 30, 58, 0.1);
    color: var(--accent-danger);
    border: 1px solid var(--accent-danger);
}

.adr-section {
    margin-bottom: var(--spacing-lg);
}

.adr-section-title {
    font-size: 1rem;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-sans);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.adr-section p {
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.tradeoff-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.tradeoff-pro,
.tradeoff-con {
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
}

.tradeoff-pro {
    background: rgba(46, 125, 50, 0.05);
    border-left: 3px solid var(--accent-success);
}

.tradeoff-con {
    background: rgba(196, 30, 58, 0.05);
    border-left: 3px solid var(--accent-danger);
}

.tradeoff-label {
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-sans);
}

.tradeoff-pro .tradeoff-label {
    color: var(--accent-success);
}

.tradeoff-con .tradeoff-label {
    color: var(--accent-danger);
}

.tradeoff-grid ul {
    list-style: none;
    padding: 0;
}

.tradeoff-grid li {
    padding: 0.5rem 0;
    line-height: 1.6;
    color: var(--text-secondary);
}

.tradeoff-grid li strong {
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .tradeoff-grid {
        grid-template-columns: 1fr;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .result-arrow {
        transform: rotate(90deg);
    }
}

/* ===================================
   Accessibility & Print
   =================================== */

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

/* Focus styles for keyboard navigation */
.btn:focus-visible,
.footer-link:focus-visible,
.modal-close:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 4px;
}

/* Print styles */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .cta-buttons,
    .modal,
    .btn {
        display: none;
    }
    
    section {
        page-break-inside: avoid;
    }
}