/* ============================================
   FOUNDRY MOTION — Industrial Design School
   Contemporary Industrial Design Studio Aesthetic
   ============================================ */

/* CSS Custom Properties */
:root {
    /* Color Palette: Graphite, Bone White, Brushed Aluminum, Muted Orange, Concrete */
    --color-graphite: #2a2a2a;
    --color-graphite-light: #3d3d3d;
    --color-graphite-dark: #1a1a1a;
    --color-bone: #f5f0e8;
    --color-bone-warm: #ede6d8;
    --color-bone-dark: #d4cdc0;
    --color-aluminum: #a8a9ad;
    --color-aluminum-light: #c5c6c8;
    --color-aluminum-dark: #8a8b8f;
    --color-orange: #c4703a;
    --color-orange-light: #d4895a;
    --color-orange-muted: #a85d2f;
    --color-concrete: #9e9e9e;
    --color-concrete-light: #b5b5b5;
    --color-white: #ffffff;
    --color-black: #111111;
    
    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    --space-3xl: 10rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-smooth: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Layout */
    --container-max: 1280px;
    --nav-height: 72px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-graphite);
    background-color: var(--color-bone);
}

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

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

/* Utility Classes */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.section-label {
    display: block;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-orange);
    margin-bottom: var(--space-sm);
}

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

.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    background: rgba(245, 240, 232, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(168, 169, 173, 0.3);
    transition: var(--transition-base);
}

.main-nav.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-md);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo-mark {
    width: 40px;
    height: 40px;
    background: var(--color-graphite);
    color: var(--color-bone);
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-graphite);
    letter-spacing: -0.02em;
}

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

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-graphite);
    letter-spacing: 0.02em;
    position: relative;
    padding: var(--space-xs) 0;
    transition: color var(--transition-fast);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-orange);
    transition: width var(--transition-base);
}

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

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

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

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

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

.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(30%) contrast(1.1);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    z-index: 2;
    background: linear-gradient(
        135deg,
        rgba(26, 26, 26, 0.75) 0%,
        rgba(42, 42, 42, 0.6) 50%,
        rgba(26, 26, 26, 0.8) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    max-width: 900px;
    padding: 0 var(--space-md);
    animation: fadeInUp 1s var(--transition-smooth);
}

.hero-headline {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 600;
    color: var(--color-bone);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-aluminum-light);
    max-width: 560px;
    margin: 0 auto var(--space-lg);
    line-height: 1.7;
}

.hero-cta {
    display: inline-block;
    padding: var(--space-sm) var(--space-xl);
    background: var(--color-orange);
    color: var(--color-white);
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: 0.03em;
    border: 2px solid var(--color-orange);
    transition: var(--transition-base);
}

.hero-cta:hover {
    background: transparent;
    color: var(--color-bone);
    border-color: var(--color-bone);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-aluminum);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    animation: fadeIn 1.5s 0.5s both;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-aluminum), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

/* ============================================
   STUDIO PHILOSOPHY SECTION
   ============================================ */

.studio {
    padding: var(--space-3xl) 0;
    background: var(--color-bone);
}

.studio-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.studio-text h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    color: var(--color-graphite);
    line-height: 1.15;
    margin-bottom: var(--space-lg);
}

.studio-text p {
    font-size: 1.0625rem;
    color: var(--color-graphite-light);
    line-height: 1.75;
    margin-bottom: var(--space-md);
}

.studio-stats {
    display: flex;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-bone-dark);
}

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

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--color-orange);
    line-height: 1;
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--color-concrete);
    letter-spacing: 0.02em;
}

.studio-visual {
    position: relative;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
}

.studio-image-main {
    position: relative;
    overflow: hidden;
}

.studio-image-main img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    filter: grayscale(20%) contrast(1.05);
    transition: var(--transition-slow);
}

.studio-image-main:hover img {
    filter: grayscale(0%) contrast(1);
    transform: scale(1.02);
}

.studio-image-secondary {
    position: absolute;
    bottom: -40px;
    left: -40px;
    width: 280px;
    border: 8px solid var(--color-bone);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.studio-image-secondary img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    filter: grayscale(20%);
}

/* ============================================
   PROGRAMS SECTION
   ============================================ */

.programs {
    padding: var(--space-3xl) 0;
    background: var(--color-graphite-dark);
    color: var(--color-bone);
}

.programs h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    line-height: 1.15;
    margin-bottom: var(--space-sm);
    color: var(--color-bone);
}

.programs-intro {
    font-size: 1.0625rem;
    color: var(--color-aluminum);
    margin-bottom: var(--space-2xl);
    max-width: 500px;
}

.programs-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.program-card {
    background: var(--color-graphite);
    padding: var(--space-xl);
    border: 1px solid rgba(168, 169, 173, 0.15);
    transition: var(--transition-base);
    position: relative;
}

.program-card:hover {
    border-color: var(--color-orange);
    transform: translateY(-4px);
}

.program-number {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-orange);
    margin-bottom: var(--space-lg);
}

.program-icon {
    width: 48px;
    height: 48px;
    color: var(--color-aluminum);
    margin-bottom: var(--space-md);
}

.program-icon svg {
    width: 100%;
    height: 100%;
}

.program-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-bone);
    margin-bottom: var(--space-sm);
}

.program-card p {
    font-size: 0.9375rem;
    color: var(--color-concrete);
    line-height: 1.65;
    margin-bottom: var(--space-lg);
}

.program-duration {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-orange);
    letter-spacing: 0.05em;
    padding: var(--space-xs) var(--space-sm);
    border: 1px solid rgba(196, 112, 58, 0.3);
}

/* ============================================
   INTERACTIVE MODEL VIEWER
   ============================================ */

.model-viewer {
    padding: var(--space-3xl) 0;
    background: var(--color-bone-warm);
}

.model-viewer h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    color: var(--color-graphite);
    line-height: 1.15;
    margin-bottom: var(--space-sm);
}

.model-intro {
    font-size: 1.0625rem;
    color: var(--color-graphite-light);
    margin-bottom: var(--space-2xl);
    max-width: 500px;
}

.viewer-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-2xl);
    align-items: start;
}

.model-stage {
    background: var(--color-graphite-dark);
    border-radius: 2px;
    padding: var(--space-xl);
    min-height: 500px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.model-base {
    position: relative;
    width: 280px;
    height: 380px;
    transition: var(--transition-slow);
}

/* CSS-Drawn Product Components */
.component {
    position: absolute;
    transition: var(--transition-slow);
    cursor: pointer;
}

.component:hover {
    filter: brightness(1.15);
}

.component-label {
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    white-space: nowrap;
    font-size: 0.75rem;
    color: var(--color-aluminum);
    opacity: 0;
    transition: var(--transition-base);
    margin-left: var(--space-md);
    pointer-events: none;
}

.component:hover .component-label,
.model-base.exploded .component-label {
    opacity: 1;
}

.base-plate {
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 24px;
    background: linear-gradient(180deg, var(--color-aluminum-dark) 0%, var(--color-aluminum) 100%);
    border-radius: 2px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.arm-lower {
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 140px;
    background: linear-gradient(90deg, var(--color-aluminum-dark) 0%, var(--color-aluminum) 50%, var(--color-aluminum-dark) 100%);
    border-radius: 2px;
    transform-origin: bottom center;
}

.joint {
    bottom: 164px;
    left: 50%;
    transform: translateX(-50%);
    width: 44px;
    height: 44px;
    background: radial-gradient(circle at 30% 30%, var(--color-aluminum-light), var(--color-aluminum-dark));
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0,0,0,0.25);
}

.arm-upper {
    bottom: 208px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 120px;
    background: linear-gradient(90deg, var(--color-aluminum-dark) 0%, var(--color-aluminum) 50%, var(--color-aluminum-dark) 100%);
    border-radius: 2px;
    transform-origin: bottom center;
}

.lamp-head {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 60px;
    background: linear-gradient(180deg, var(--color-aluminum) 0%, var(--color-aluminum-dark) 100%);
    border-radius: 4px 4px 20px 20px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.lamp-head::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 20px;
    background: rgba(255, 255, 220, 0.9);
    border-radius: 2px;
    box-shadow: 0 0 20px rgba(255, 255, 220, 0.3);
}

/* Exploded View States */
.model-base.exploded .base-plate {
    transform: translateX(-50%) translateY(40px);
}

.model-base.exploded .arm-lower {
    transform: translateX(-50%) translateY(20px);
}

.model-base.exploded .joint {
    transform: translateX(-50%) translateY(-10px);
}

.model-base.exploded .arm-upper {
    transform: translateX(-50%) translateY(-30px);
}

.model-base.exploded .lamp-head {
    transform: translateX(-50%) translateY(-60px);
}

.model-controls {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
}

.explode-btn, .reset-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-graphite);
    color: var(--color-bone);
    border: 1px solid rgba(168, 169, 173, 0.3);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

.explode-btn:hover, .reset-btn:hover {
    background: var(--color-orange);
    border-color: var(--color-orange);
}

.btn-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon svg {
    width: 100%;
    height: 100%;
}

.model-info {
    padding-top: var(--space-md);
}

.model-info h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-graphite);
    margin-bottom: var(--space-sm);
}

.model-description {
    font-size: 1rem;
    color: var(--color-graphite-light);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
}

.material-tabs {
    display: flex;
    gap: var(--space-xs);
    margin-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-bone-dark);
}

.material-tab {
    padding: var(--space-sm) var(--space-md);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-concrete);
    cursor: pointer;
    transition: var(--transition-fast);
    margin-bottom: -1px;
}

.material-tab:hover {
    color: var(--color-graphite);
}

.material-tab.active {
    color: var(--color-orange);
    border-bottom-color: var(--color-orange);
}

.material-details {
    display: none;
    animation: fadeIn 0.3s ease;
}

.material-details.active {
    display: block;
}

.material-property {
    display: flex;
    justify-content: space-between;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(168, 169, 173, 0.2);
}

.property-name {
    font-size: 0.8125rem;
    color: var(--color-concrete);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.property-value {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-graphite);
}

/* ============================================
   MANUFACTURING TIMELINE
   ============================================ */

.timeline {
    padding: var(--space-3xl) 0;
    background: var(--color-graphite);
    color: var(--color-bone);
}

.timeline h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    line-height: 1.15;
    margin-bottom: var(--space-sm);
    color: var(--color-bone);
}

.timeline-intro {
    font-size: 1.0625rem;
    color: var(--color-aluminum);
    margin-bottom: var(--space-2xl);
    max-width: 500px;
}

.timeline-track {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-line {
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-orange), var(--color-graphite-light));
}

.timeline-step {
    position: relative;
    padding-left: 80px;
    padding-bottom: var(--space-2xl);
    opacity: 0;
    transform: translateX(-20px);
    transition: var(--transition-smooth);
}

.timeline-step.visible {
    opacity: 1;
    transform: translateX(0);
}

.step-marker {
    position: absolute;
    left: 0;
    top: 0;
    width: 50px;
    height: 50px;
    background: var(--color-graphite);
    border: 2px solid var(--color-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-orange);
    z-index: 2;
}

.step-content {
    padding-top: var(--space-xs);
}

.step-duration {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-orange);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--space-xs);
}

.step-content h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-bone);
    margin-bottom: var(--space-sm);
}

.step-content p {
    font-size: 0.9375rem;
    color: var(--color-concrete);
    line-height: 1.65;
}

/* ============================================
   WORKSHOP / PROTOTYPES
   ============================================ */

.workshop {
    padding: var(--space-3xl) 0;
    background: var(--color-bone);
}

.workshop h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    color: var(--color-graphite);
    line-height: 1.15;
    margin-bottom: var(--space-sm);
}

.workshop-intro {
    font-size: 1.0625rem;
    color: var(--color-graphite-light);
    margin-bottom: var(--space-2xl);
    max-width: 500px;
}

.filter-bar {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-xs) var(--space-md);
    background: transparent;
    border: 1px solid var(--color-bone-dark);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-graphite-light);
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--color-orange);
    color: var(--color-orange);
}

.filter-btn.active {
    background: var(--color-graphite);
    color: var(--color-bone);
    border-color: var(--color-graphite);
}

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

.prototype-card {
    background: var(--color-white);
    border: 1px solid var(--color-bone-dark);
    transition: var(--transition-base);
    opacity: 1;
    transform: scale(1);
}

.prototype-card.hidden {
    display: none;
}

.prototype-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

.prototype-image {
    overflow: hidden;
    height: 260px;
}

.prototype-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(25%) contrast(1.05);
    transition: var(--transition-slow);
}

.prototype-card:hover .prototype-image img {
    filter: grayscale(0%) contrast(1);
    transform: scale(1.05);
}

.prototype-content {
    padding: var(--space-lg);
}

.prototype-category {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-orange);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.prototype-content h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-graphite);
    margin-bottom: var(--space-md);
}

.prototype-specs {
    display: grid;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.prototype-specs > div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.prototype-specs dt {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-concrete);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.prototype-specs dd {
    font-size: 0.9375rem;
    color: var(--color-graphite-light);
}

.prototype-result {
    font-size: 0.9375rem;
    color: var(--color-graphite);
    line-height: 1.6;
    padding-top: var(--space-sm);
    border-top: 1px solid var(--color-bone-dark);
}

.prototype-result strong {
    color: var(--color-orange);
}

/* ============================================
   PROJECT ARCHIVE
   ============================================ */

.projects {
    padding: var(--space-3xl) 0;
    background: var(--color-graphite-dark);
    color: var(--color-bone);
}

.projects h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    line-height: 1.15;
    margin-bottom: var(--space-sm);
    color: var(--color-bone);
}

.projects-intro {
    font-size: 1.0625rem;
    color: var(--color-aluminum);
    margin-bottom: var(--space-2xl);
    max-width: 500px;
}

.archive-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 350px;
    gap: var(--space-md);
}

.archive-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.archive-item.large {
    grid-column: span 2;
    grid-row: span 1;
}

.archive-image {
    position: absolute;
    inset: 0;
}

.archive-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(40%) contrast(1.1);
    transition: var(--transition-slow);
}

.archive-item:hover .archive-image img {
    filter: grayscale(10%) contrast(1);
    transform: scale(1.05);
}

.archive-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(26, 26, 26, 0.9) 0%,
        rgba(26, 26, 26, 0.3) 50%,
        rgba(26, 26, 26, 0.1) 100%
    );
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    transition: var(--transition-base);
}

.archive-item:hover .archive-overlay {
    background: linear-gradient(
        to top,
        rgba(26, 26, 26, 0.95) 0%,
        rgba(26, 26, 26, 0.5) 60%,
        rgba(26, 26, 26, 0.2) 100%
    );
}

.archive-year {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-orange);
    letter-spacing: 0.1em;
    margin-bottom: var(--space-xs);
}

.archive-overlay h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-bone);
    margin-bottom: var(--space-xs);
}

.archive-meta {
    font-size: 0.875rem;
    color: var(--color-aluminum);
}

.archive-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.archive-item:hover .archive-details {
    max-height: 200px;
    margin-top: var(--space-sm);
}

.archive-details p {
    font-size: 0.9375rem;
    color: var(--color-concrete);
    line-height: 1.65;
}

/* ============================================
   STUDIO INFORMATION / CONTACT
   ============================================ */

.studio-info {
    padding: var(--space-3xl) 0;
    background: var(--color-bone-warm);
}

.info-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-3xl);
}

.info-main h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    color: var(--color-graphite);
    line-height: 1.15;
    margin-bottom: var(--space-lg);
}

.info-main p {
    font-size: 1.0625rem;
    color: var(--color-graphite-light);
    line-height: 1.75;
    margin-bottom: var(--space-xl);
}

.info-address {
    font-style: normal;
}

.info-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-orange);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.info-address a {
    font-size: 1.0625rem;
    color: var(--color-graphite);
    line-height: 1.7;
    transition: color var(--transition-fast);
}

.info-address a:hover {
    color: var(--color-orange);
}

.contact-block {
    margin-bottom: var(--space-lg);
}

.contact-block a {
    font-size: 1.0625rem;
    color: var(--color-graphite);
    transition: color var(--transition-fast);
}

.contact-block a:hover {
    color: var(--color-orange);
}

.contact-block p {
    font-size: 1rem;
    color: var(--color-graphite-light);
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: var(--space-sm);
}

.social-links a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-bone-dark);
    color: var(--color-graphite);
    transition: var(--transition-fast);
}

.social-links a:hover {
    background: var(--color-graphite);
    color: var(--color-bone);
    border-color: var(--color-graphite);
}

.social-links a svg {
    width: 20px;
    height: 20px;
}

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

.main-footer {
    padding: var(--space-xl) 0;
    background: var(--color-graphite-dark);
    color: var(--color-aluminum);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-sm);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.footer-name {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-bone);
}

.footer-tagline {
    font-size: 0.9375rem;
    color: var(--color-concrete);
}

.footer-copyright {
    font-size: 0.8125rem;
    color: var(--color-aluminum-dark);
    margin-top: var(--space-md);
}

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

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.5; transform: scaleY(1); }
    50% { opacity: 1; transform: scaleY(1.2); }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .programs-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .prototypes-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .archive-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .archive-item.large {
        grid-column: span 2;
    }
    
    .viewer-container {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --space-3xl: 6rem;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--color-bone);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition-base);
        border-bottom: 1px solid var(--color-bone-dark);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .studio-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .studio-image-secondary {
        display: none;
    }
    
    .programs-grid {
        grid-template-columns: 1fr;
    }
    
    .prototypes-grid {
        grid-template-columns: 1fr;
    }
    
    .archive-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 300px;
    }
    
    .archive-item.large {
        grid-column: span 1;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .model-stage {
        min-height: 400px;
    }
    
    .model-base {
        transform: scale(0.85);
    }
    
    .timeline-step {
        padding-left: 60px;
    }
    
    .step-marker {
        width: 40px;
        height: 40px;
        font-size: 0.875rem;
    }
    
    .studio-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }
}

@media (max-width: 480px) {
    .hero-headline {
        font-size: 2rem;
    }
    
    .filter-bar {
        gap: var(--space-xs);
    }
    
    .filter-btn {
        padding: var(--space-xs) var(--space-sm);
        font-size: 0.8125rem;
    }
    
    .model-controls {
        flex-direction: column;
        width: 100%;
    }
    
    .explode-btn, .reset-btn {
        justify-content: center;
    }
}

/* 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;
    }
}