/*
 * Redshaw Campaign Portfolio
 * Mobile-First Responsive Design
 * Kartavya Jharwal — 2025
 */

/* ========================================
   CSS CUSTOM PROPERTIES
   ======================================== */

:root {
    /* Colors - Navy/Orange Brand */
    --color-bg: #0a192f;
    --color-bg-alt: #112240;
    --color-bg-light: #1d3557;
    --color-text: #e6f1ff;
    --color-text-muted: #8892b0;
    --color-accent: #ff6b35;
    --color-accent-light: #ff8c5a;
    --color-accent-glow: rgba(255, 107, 53, 0.3);
    --color-success: #64ffda;
    --color-crisis: #ff6b6b;
    
    /* B2B/B2C Tags */
    --color-b2b: #4ecdc4;
    --color-b2c: #ff6b35;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 2rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    --space-3xl: 8rem;
    
    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;
    
    /* Transitions */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --duration-fast: 0.2s;
    --duration-medium: 0.4s;
    --duration-slow: 0.8s;
    
    /* Shadows */
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px var(--color-accent-glow);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* ========================================
   RESET & BASE
   ======================================== */

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

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

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

/* ========================================
   UTILITIES
   ======================================== */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.skip-link {
    position: fixed;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-accent);
    color: var(--color-bg);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    z-index: 10000;
    font-weight: 600;
    transition: top var(--duration-fast);
}

.skip-link:focus {
    top: var(--space-md);
}

/* ========================================
   NAVIGATION
   ======================================== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--duration-medium) var(--ease-out-expo);
}

.nav.scrolled {
    background: rgba(10, 25, 47, 0.95);
    box-shadow: var(--shadow-md);
}

.nav-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-md) var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: -0.02em;
}

.nav-links {
    display: none;
    gap: var(--space-lg);
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
    transition: color var(--duration-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--duration-fast) var(--ease-out-expo);
}

.nav-links a:hover {
    color: var(--color-text);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--duration-fast);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: var(--color-bg);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: right var(--duration-medium) var(--ease-out-expo);
}

.mobile-menu.active {
    right: 0;
}

.mobile-nav-links {
    text-align: center;
}

.mobile-nav-links li {
    margin-bottom: var(--space-lg);
}

.mobile-nav-links a {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
    transition: color var(--duration-fast);
}

.mobile-nav-links a:hover {
    color: var(--color-accent);
}

/* Desktop Nav */
@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
    
    .nav-toggle {
        display: none;
    }
    
    .mobile-menu {
        display: none;
    }
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: var(--space-xl) var(--container-padding);
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 30% 20%, rgba(255, 107, 53, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(78, 205, 196, 0.08) 0%, transparent 50%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: var(--space-lg);
}

.hero-title {
    font-size: clamp(2.5rem, 10vw, 6rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
}

.hero-title-line {
    display: block;
}

.hero-title-line.accent {
    color: var(--color-accent);
}

.hero-tagline {
    font-size: clamp(1rem, 3vw, 1.5rem);
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
    line-height: 1.5;
}

.hero-tagline .highlight {
    color: var(--color-text);
    font-weight: 600;
}

.hero-meta {
    margin-top: var(--space-xl);
}

.hero-author {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
}

.hero-subtitle {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-muted);
    font-size: 0.75rem;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    animation: fadeInUp 1s var(--ease-out-expo) 0.5s forwards;
    opacity: 0;
}

.scroll-arrow {
    font-size: 1.5rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(10px); }
    60% { transform: translateY(5px); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ========================================
   SECTIONS
   ======================================== */

.section {
    padding: var(--space-2xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.section-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: var(--space-md);
}

.section-title {
    font-size: clamp(1.75rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

/* ========================================
   OVERVIEW SECTION
   ======================================== */

.overview-grid {
    display: grid;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.overview-card {
    background: var(--color-bg-alt);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.overview-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.overview-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.overview-list li {
    color: var(--color-text-muted);
    line-height: 1.5;
}

.overview-list li strong {
    color: var(--color-text);
}

.overview-lead {
    font-size: 1.125rem;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.solution-items {
    display: grid;
    gap: var(--space-md);
}

.solution-item {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}

.solution-item h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.solution-item ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.solution-item li {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    padding-left: var(--space-md);
    position: relative;
}

.solution-item li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

.tag {
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.2em 0.6em;
    border-radius: var(--radius-sm);
}

.tag.b2b {
    background: rgba(78, 205, 196, 0.2);
    color: var(--color-b2b);
}

.tag.b2c {
    background: rgba(255, 107, 53, 0.2);
    color: var(--color-b2c);
}

.philosophy-statement {
    text-align: center;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-accent);
    font-style: italic;
}

@media (min-width: 768px) {
    .overview-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .solution-items {
        grid-template-columns: 1fr 1fr;
    }
}

/* ========================================
   CAMPAIGN SECTIONS
   ======================================== */

.campaign-section {
    padding: var(--space-2xl) 0;
}

.carbonseer-section {
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
}

.carbonbuster-section {
    background: var(--color-bg-alt);
}

.campaign-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.campaign-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    padding: 0.4em 1em;
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-md);
}

.campaign-tag.b2b {
    background: rgba(78, 205, 196, 0.15);
    color: var(--color-b2b);
    border: 1px solid rgba(78, 205, 196, 0.3);
}

.campaign-tag.b2c {
    background: rgba(255, 107, 53, 0.15);
    color: var(--color-b2c);
    border: 1px solid rgba(255, 107, 53, 0.3);
}

.campaign-title {
    font-size: clamp(2rem, 6vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-sm);
}

.carbonseer-section .campaign-title {
    color: var(--color-b2b);
}

.carbonbuster-section .campaign-title {
    color: var(--color-b2c);
}

.campaign-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
}

.campaign-content {
    display: grid;
    gap: var(--space-xl);
    align-items: start;
}

.campaign-lead {
    font-size: 1.125rem;
    color: var(--color-text);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.campaign-problem,
.campaign-solution {
    margin-bottom: var(--space-lg);
}

.campaign-problem p,
.campaign-solution p {
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.campaign-problem strong,
.campaign-solution strong {
    color: var(--color-text);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}

.feature-list li {
    color: var(--color-text-muted);
    padding-left: var(--space-lg);
    position: relative;
}

.feature-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-text-muted);
}

.feature-list.accent li::before {
    color: var(--color-accent);
}

.solution-tagline {
    margin-top: var(--space-md);
    font-style: italic;
    color: var(--color-text);
}

/* Jingle Callout */
.jingle-callout {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: rgba(255, 107, 53, 0.1);
    border: 1px solid rgba(255, 107, 53, 0.2);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
}

.jingle-icon {
    font-size: 2rem;
}

.jingle-title {
    font-weight: 700;
    color: var(--color-accent);
    font-size: 1rem;
}

.jingle-subtitle {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* Touchpoints */
.touchpoints {
    margin-bottom: var(--space-lg);
}

.touchpoints h4 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.touchpoint-list {
    display: grid;
    gap: var(--space-sm);
}

.touchpoint-list li {
    font-size: 0.875rem;
    color: var(--color-text);
    padding-left: var(--space-md);
    position: relative;
}

.touchpoint-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

/* Campaign CTA */
.campaign-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--color-b2b);
    color: var(--color-bg);
    font-weight: 600;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    transition: all var(--duration-fast) var(--ease-out-expo);
}

.campaign-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(78, 205, 196, 0.3);
}

.campaign-cta svg {
    transition: transform var(--duration-fast);
}

.campaign-cta:hover svg {
    transform: translateX(4px);
}

.carbonbuster-cta {
    background: var(--color-b2c);
}

.carbonbuster-cta:hover {
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.3);
}

/* Campaign Visuals */
.campaign-visual {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.visual-caption {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-align: center;
    font-style: italic;
}

/* Dashboard Mockup */
.dashboard-mockup {
    background: var(--color-bg);
    border: 1px solid rgba(78, 205, 196, 0.2);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.mockup-header {
    display: flex;
    gap: 6px;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg-light);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mockup-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
}

.mockup-dot:first-child { background: #ff5f56; }
.mockup-dot:nth-child(2) { background: #ffbd2e; }
.mockup-dot:nth-child(3) { background: #27ca40; }

.mockup-content {
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.mockup-chart {
    height: 120px;
    background: linear-gradient(180deg, rgba(78, 205, 196, 0.2) 0%, transparent 100%);
    border-radius: var(--radius-sm);
    position: relative;
}

.mockup-chart::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-b2b);
}

.mockup-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
}

.mockup-stat {
    height: 60px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-sm);
}

.mockup-table {
    height: 80px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-sm);
}

/* Manga Mockup */
.manga-mockup {
    background: var(--color-bg);
    border: 1px solid rgba(255, 107, 53, 0.2);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    padding: var(--space-md);
}

.manga-page {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.manga-panel {
    background: var(--color-bg-alt);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
}

.manga-panel.large {
    height: 150px;
}

.manga-panel.medium {
    height: 80px;
}

.manga-panel.small {
    height: 70px;
}

.manga-panel-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
}

@media (min-width: 768px) {
    .campaign-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .campaign-content.reverse {
        direction: rtl;
    }
    
    .campaign-content.reverse > * {
        direction: ltr;
    }
    
    .mockup-chart {
        height: 160px;
    }
    
    .manga-panel.large {
        height: 200px;
    }
}

/* ========================================
   JOURNEY / TIMELINE SECTION
   ======================================== */

.journey-section {
    background: var(--color-bg);
}

.timeline {
    position: relative;
    padding-left: var(--space-lg);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-accent) 0%, var(--color-b2b) 100%);
}

.timeline-item {
    position: relative;
    padding-bottom: var(--space-xl);
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: calc(-1 * var(--space-lg) - 6px);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.timeline-week {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-accent);
    background: var(--color-bg);
    padding: 0 var(--space-sm);
    white-space: nowrap;
}

.timeline-month {
    font-size: 0.625rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: var(--space-xs);
    padding-left: var(--space-sm);
}

.timeline-content {
    background: var(--color-bg-alt);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-left: var(--space-lg);
}

.timeline-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.timeline-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.timeline-list li {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    padding-left: var(--space-md);
    position: relative;
}

.timeline-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

.timeline-list li em {
    color: var(--color-text);
    font-style: italic;
}

.timeline-list li.insight {
    color: var(--color-success);
    font-weight: 500;
}

.timeline-list li.insight::before {
    content: '★';
    color: var(--color-success);
}

/* Crisis Item */
.timeline-item.crisis .timeline-content {
    border-color: rgba(255, 107, 107, 0.3);
}

.crisis-callout {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    background: rgba(255, 107, 107, 0.1);
    border-left: 3px solid var(--color-crisis);
    padding: var(--space-md);
    margin-bottom: var(--space-md);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.crisis-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-crisis);
}

.crisis-event {
    font-weight: 600;
    color: var(--color-text);
}

/* Timeline Visuals */
.timeline-visual {
    margin-top: var(--space-md);
}

.visual-placeholder {
    height: 100px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-muted);
    border: 2px dashed rgba(255, 255, 255, 0.1);
}

.visual-placeholder.research { background: rgba(255, 107, 53, 0.05); }
.visual-placeholder.development { background: rgba(78, 205, 196, 0.05); }
.visual-placeholder.crisis-visual { background: rgba(255, 107, 107, 0.05); }
.visual-placeholder.execution { background: rgba(100, 255, 218, 0.05); }

/* Journey Closing */
.journey-closing {
    margin-top: var(--space-2xl);
    text-align: center;
}

.closing-quote {
    margin-bottom: var(--space-xl);
}

.closing-quote p {
    font-size: clamp(1.25rem, 4vw, 2rem);
    font-weight: 700;
    color: var(--color-text);
    font-style: italic;
}

.closing-stats {
    display: grid;
    gap: var(--space-lg);
}

.closing-stat {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-accent);
}

@media (min-width: 768px) {
    .timeline {
        padding-left: var(--space-xl);
    }
    
    .timeline-marker {
        left: calc(-1 * var(--space-xl) - 6px);
    }
    
    .timeline-content {
        margin-left: var(--space-xl);
    }
    
    .closing-stats {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
    background: var(--color-bg-alt);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-grid {
    display: grid;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.footer-subtitle {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.footer-philosophy {
    font-style: italic;
    color: var(--color-accent);
}

.footer-links h3,
.footer-contact h3 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--color-text);
    transition: color var(--duration-fast);
}

.footer-links a:hover {
    color: var(--color-accent);
}

.contact-name {
    font-weight: 600;
    color: var(--color-text);
}

.contact-title {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.contact-links {
    display: flex;
    gap: var(--space-md);
}

.contact-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    transition: all var(--duration-fast);
}

.contact-links a:hover {
    background: var(--color-accent);
    color: var(--color-bg);
    transform: translateY(-2px);
}

.footer-academic {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    line-height: 1.8;
}

.academic-term {
    color: var(--color-text);
    font-weight: 600;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: var(--space-lg);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

/* ========================================
   ANIMATIONS
   ======================================== */

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.8s var(--ease-out-expo) forwards;
}

.fade-in:nth-child(1) { animation-delay: 0.1s; }
.fade-in:nth-child(2) { animation-delay: 0.2s; }
.fade-in:nth-child(3) { animation-delay: 0.3s; }
.fade-in:nth-child(4) { animation-delay: 0.4s; }

@keyframes fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

/* ========================================
   RESPONSIVE ADJUSTMENTS
   ======================================== */

@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
    }
    
    .section {
        padding: var(--space-xl) 0;
    }
    
    .timeline {
        padding-left: var(--space-md);
    }
    
    .timeline-marker {
        left: calc(-1 * var(--space-md) - 6px);
    }
    
    .timeline-week {
        font-size: 0.625rem;
    }
    
    .timeline-content {
        margin-left: var(--space-md);
        padding: var(--space-md);
    }
}

/* ========================================
   PRINT STYLES
   ======================================== */

@media print {
    .nav,
    .mobile-menu,
    .scroll-indicator,
    .campaign-cta {
        display: none !important;
    }
    
    .hero {
        min-height: auto;
        padding: var(--space-lg);
    }
    
    .section {
        padding: var(--space-lg) 0;
        page-break-inside: avoid;
    }
    
    body {
        background: white;
        color: black;
    }
}

/* ========================================
   REDUCED MOTION
   ======================================== */

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