/* ============================================
   QUANTUM AI AUTONOMOUS MINING ACADEMY
   Premium Industrial Stylesheet
   ============================================ */

/* ============================================
   1. CSS CUSTOM PROPERTIES & DESIGN TOKENS
   ============================================ */
:root {
    /* Core Colors - Graphite, Copper, Amber */
    --graphite-950: #0a0a0c;
    --graphite-900: #121214;
    --graphite-800: #1a1a1e;
    --graphite-700: #25252a;
    --graphite-600: #33333a;
    --graphite-500: #4a4a54;
    --graphite-400: #6b6b78;
    --graphite-300: #9494a4;
    --graphite-200: #c4c4d0;
    --graphite-100: #e8e8ee;
    
    --copper-500: #B87333;
    --copper-400: #C9844A;
    --copper-300: #D99B6A;
    --copper-200: #E8B896;
    --copper-100: #F5DCC8;
    
    --amber-500: #FF8C00;
    --amber-400: #FFA533;
    --amber-300: #FFBD66;
    --amber-200: #FFD699;
    --amber-100: #FFECCC;
    
    /* Functional Colors */
    --primary: var(--copper-500);
    --primary-light: var(--copper-300);
    --accent: var(--amber-500);
    --accent-light: var(--amber-300);
    --text-primary: var(--graphite-100);
    --text-secondary: var(--graphite-300);
    --text-muted: var(--graphite-500);
    --bg-primary: var(--graphite-950);
    --bg-secondary: var(--graphite-900);
    --bg-tertiary: var(--graphite-800);
    --border-subtle: rgba(184, 115, 51, 0.15);
    --border-medium: rgba(184, 115, 51, 0.3);
    
    /* Glassmorphism */
    --glass-bg: rgba(18, 18, 20, 0.7);
    --glass-border: rgba(184, 115, 51, 0.2);
    --glass-blur: 16px;
    
    /* Typography */
    --font-display: 'Orbitron', sans-serif;
    --font-heading: 'Rajdhani', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing Scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    
    /* Animation Timing */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out-sine: cubic-bezier(0.37, 0, 0.63, 1);
    --duration-fast: 150ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;
    --duration-slower: 800ms;
    
    /* Z-Index Scale */
    --z-base: 1;
    --z-elevated: 10;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
    --z-top: 1000;
}

/* ============================================
   2. RESET & BASE STYLES
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
}

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

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

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

ul, ol {
    list-style: none;
}

/* ============================================
   3. UTILITY CLASSES
   ============================================ */
.gradient-text {
    background: linear-gradient(135deg, var(--copper-300) 0%, var(--amber-400) 50%, var(--copper-500) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--copper-400);
    margin-bottom: var(--space-lg);
}

.section-label::before {
    content: '';
    width: 32px;
    height: 2px;
    background: linear-gradient(90deg, var(--copper-500), transparent);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-lg);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    line-height: 1.7;
}

/* ============================================
   4. NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    padding: var(--space-md) 0;
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.navbar.scrolled {
    background: rgba(10, 10, 12, 0.85);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--border-subtle);
    padding: var(--space-sm) 0;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.logo-icon {
    width: 44px;
    height: 44px;
    color: var(--copper-400);
    flex-shrink: 0;
}

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

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-main {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    line-height: 1.2;
    color: var(--text-primary);
}

.logo-accent {
    color: var(--copper-400);
}

.logo-sub {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-muted);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 0.9375rem;
    font-weight: 600;
    padding: var(--space-sm) var(--space-md);
    border-radius: 6px;
    transition: all var(--duration-fast) ease;
    position: relative;
    color: var(--text-secondary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: var(--space-md);
    right: var(--space-md);
    height: 2px;
    background: linear-gradient(90deg, var(--copper-500), var(--amber-500));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--duration-normal) var(--ease-out-expo);
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link:hover::after {
    transform: scaleX(1);
}

.nav-cta {
    background: linear-gradient(135deg, var(--copper-500), var(--copper-400));
    color: var(--graphite-950) !important;
    margin-left: var(--space-sm);
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    background: linear-gradient(135deg, var(--copper-400), var(--amber-400));
    transform: translateY(-1px);
    box-shadow: 0 8px 32px rgba(184, 115, 51, 0.3);
}

/* Mobile Navigation */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
    z-index: var(--z-elevated);
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 1px;
    transition: all var(--duration-normal) var(--ease-out-expo);
    transform-origin: center;
}

.nav-toggle.active .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.nav-toggle.active .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   5. HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: calc(var(--space-5xl) + 60px) 0 var(--space-4xl);
}

.hero-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(184, 115, 51, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(184, 115, 51, 0.03) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: var(--z-base);
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 100px;
    padding: var(--space-sm) var(--space-md);
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--copper-300);
    margin-bottom: var(--space-xl);
    width: fit-content;
}

.badge-pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--amber-500);
    animation: pulse 2s var(--ease-in-out-sine) infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 520px;
    line-height: 1.8;
    margin-bottom: var(--space-2xl);
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    padding: var(--space-md) var(--space-xl);
    border-radius: 8px;
    transition: all var(--duration-normal) var(--ease-out-expo);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--copper-500), var(--copper-400));
    color: var(--graphite-950);
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--amber-400), var(--copper-300));
    opacity: 0;
    transition: opacity var(--duration-normal) ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(184, 115, 51, 0.4);
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary span,
.btn-primary svg {
    position: relative;
    z-index: 1;
}

.btn-arrow {
    width: 20px;
    height: 20px;
    transition: transform var(--duration-normal) var(--ease-out-expo);
}

.btn-primary:hover .btn-arrow {
    transform: translateX(4px);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-medium);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(184, 115, 51, 0.1);
    border-color: var(--copper-400);
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    gap: var(--space-3xl);
}

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

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--copper-300);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    max-width: 120px;
    line-height: 1.4;
}

/* Hero Visual - Holographic Vehicle */
.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 500px;
}

.holographic-vehicle {
    position: relative;
    width: 400px;
    height: 280px;
    animation: vehicleFloat 6s var(--ease-in-out-sine) infinite;
}

@keyframes vehicleFloat {
    0%, 100% { transform: translateY(0) rotateX(5deg); }
    50% { transform: translateY(-20px) rotateX(-5deg); }
}

.vehicle-body {
    width: 100%;
    height: 100%;
    position: relative;
    z-index: 2;
}

.vehicle-body svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 20px rgba(184, 115, 51, 0.3));
}

.vehicle-scan-line {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--amber-400), transparent);
    animation: scanLine 3s linear infinite;
    z-index: 3;
}

@keyframes scanLine {
    0% { top: 0; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}

.vehicle-hologram-ring {
    position: absolute;
    border: 1px solid rgba(184, 115, 51, 0.2);
    border-radius: 50%;
    pointer-events: none;
}

.ring-1 {
    width: 500px;
    height: 500px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: ringPulse 4s var(--ease-in-out-sine) infinite;
}

.ring-2 {
    width: 600px;
    height: 600px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: ringPulse 4s var(--ease-in-out-sine) infinite 0.5s;
    border-color: rgba(255, 140, 0, 0.15);
}

.ring-3 {
    width: 700px;
    height: 700px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: ringPulse 4s var(--ease-in-out-sine) infinite 1s;
    border-color: rgba(184, 115, 51, 0.1);
}

@keyframes ringPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.05); opacity: 1; }
}

/* Floating Dashboards */
.floating-dashboard {
    position: absolute;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: var(--space-md);
    min-width: 180px;
    animation: dashboardFloat 5s var(--ease-in-out-sine) infinite;
    z-index: 10;
}

.floating-dashboard:nth-child(3) {
    top: 10%;
    right: -20px;
    animation-delay: -1s;
}

.floating-dashboard:nth-child(4) {
    bottom: 15%;
    left: -30px;
    animation-delay: -2.5s;
}

@keyframes dashboardFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.dashboard-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.dashboard-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--amber-500);
    animation: dotPulse 2s infinite;
}

.dot-alt {
    background: var(--copper-400);
    animation-delay: 0.5s;
}

@keyframes dotPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.dash-metric {
    display: flex;
    align-items: baseline;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
}

.dash-value {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--copper-300);
}

.dash-unit {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-left: 4px;
}

.dash-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.dash-bar {
    height: 4px;
    background: var(--graphite-700);
    border-radius: 2px;
    overflow: hidden;
}

.dash-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--copper-500), var(--amber-400));
    border-radius: 2px;
    animation: barFill 2s var(--ease-out-expo) forwards;
}

@keyframes barFill {
    from { width: 0; }
}

.dash-wave {
    display: flex;
    gap: 3px;
    align-items: flex-end;
    height: 24px;
}

.dash-wave span {
    width: 3px;
    background: linear-gradient(to top, var(--copper-500), var(--amber-400));
    border-radius: 1px;
    animation: waveBar 1.2s ease-in-out infinite;
}

.dash-wave span:nth-child(1) { height: 40%; animation-delay: 0s; }
.dash-wave span:nth-child(2) { height: 70%; animation-delay: 0.1s; }
.dash-wave span:nth-child(3) { height: 100%; animation-delay: 0.2s; }
.dash-wave span:nth-child(4) { height: 60%; animation-delay: 0.3s; }
.dash-wave span:nth-child(5) { height: 30%; animation-delay: 0.4s; }

@keyframes waveBar {
    0%, 100% { transform: scaleY(0.8); opacity: 0.6; }
    50% { transform: scaleY(1); opacity: 1; }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-2xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-muted);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.scroll-mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--graphite-500);
    border-radius: 12px;
    position: relative;
}

.scroll-wheel {
    width: 4px;
    height: 8px;
    background: var(--copper-400);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheel 2s var(--ease-in-out-sine) infinite;
}

@keyframes scrollWheel {
    0%, 100% { top: 8px; opacity: 1; }
    50% { top: 20px; opacity: 0.3; }
}

/* ============================================
   6. ABOUT SECTION
   ============================================ */
.about {
    padding: var(--space-5xl) 0;
    position: relative;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

.about-visual {
    position: relative;
}

.about-image-container {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
}

.about-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    aspect-ratio: 4/3;
}

.about-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10, 10, 12, 0.3), rgba(184, 115, 51, 0.15));
    mix-blend-mode: multiply;
}

.about-image-frame {
    position: absolute;
    inset: 0;
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    pointer-events: none;
}

.about-image-frame::before,
.about-image-frame::after {
    content: '';
    position: absolute;
    width: 40px;
    height: 40px;
    border: 2px solid var(--copper-400);
}

.about-image-frame::before {
    top: -1px;
    left: -1px;
    border-right: none;
    border-bottom: none;
    border-radius: 16px 0 0 0;
}

.about-image-frame::after {
    bottom: -1px;
    right: -1px;
    border-left: none;
    border-top: none;
    border-radius: 0 0 16px 0;
}

.about-data-visualization {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.data-node {
    position: absolute;
    width: 20px;
    height: 20px;
}

.data-node:nth-child(1) { top: 20%; left: 15%; }
.data-node:nth-child(2) { top: 50%; right: 10%; }
.data-node:nth-child(3) { bottom: 25%; left: 30%; }

.node-ring {
    position: absolute;
    inset: 0;
    border: 2px solid var(--copper-400);
    border-radius: 50%;
    opacity: 0.4;
    animation: nodeRing 3s var(--ease-in-out-sine) infinite var(--delay);
}

.node-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: var(--amber-400);
    border-radius: 50%;
    animation: nodeCore 3s var(--ease-in-out-sine) infinite var(--delay);
}

@keyframes nodeRing {
    0%, 100% { transform: scale(1); opacity: 0.4; }
    50% { transform: scale(1.5); opacity: 0.1; }
}

@keyframes nodeCore {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 140, 0, 0.4); }
    50% { box-shadow: 0 0 20px 4px rgba(255, 140, 0, 0.2); }
}

.data-connections {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.about-content {
    padding-left: var(--space-xl);
}

.about-text {
    color: var(--text-secondary);
    font-size: 1.0625rem;
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.about-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-2xl);
}

.feature-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: var(--space-lg);
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-medium);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    width: 48px;
    height: 48px;
    color: var(--copper-400);
    margin-bottom: var(--space-md);
}

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

.feature-icon.icon-alt {
    color: var(--amber-400);
}

.feature-title {
    display: block;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.feature-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ============================================
   7. PROGRAMS SECTION
   ============================================ */
.programs {
    padding: var(--space-5xl) 0;
    position: relative;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
}

.programs .section-header {
    text-align: center;
    margin-bottom: var(--space-4xl);
}

.programs .section-title {
    margin-bottom: var(--space-md);
}

.programs .section-subtitle {
    margin: 0 auto;
}

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

.program-card {
    position: relative;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    overflow: hidden;
    transition: all var(--duration-slow) var(--ease-out-expo);
}

.program-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-medium);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.4);
}

.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(184, 115, 51, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--duration-slow) ease;
    pointer-events: none;
}

.program-card:hover .card-glow {
    opacity: 1;
}

.card-content {
    position: relative;
    z-index: 2;
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    min-height: 520px;
}

.card-number {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--copper-400);
    opacity: 0.6;
    margin-bottom: var(--space-md);
}

.card-icon {
    width: 64px;
    height: 64px;
    color: var(--copper-300);
    margin-bottom: var(--space-lg);
}

.card-icon.icon-alt {
    color: var(--amber-300);
}

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

.card-title {
    font-family: var(--font-display);
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    line-height: 1.3;
}

.card-description {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: var(--space-lg);
    flex-grow: 1;
}

.card-meta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--border-subtle);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.meta-item svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.card-topics {
    margin-bottom: var(--space-xl);
}

.card-topics li {
    position: relative;
    padding-left: var(--space-lg);
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.card-topics li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--copper-400);
}

.card-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-heading);
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--copper-300);
    transition: all var(--duration-normal) ease;
    margin-top: auto;
}

.card-cta svg {
    width: 16px;
    height: 16px;
    transition: transform var(--duration-normal) var(--ease-out-expo);
}

.card-cta:hover {
    color: var(--amber-400);
}

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

.card-bg-pattern {
    position: absolute;
    inset: 0;
    opacity: 0.03;
    background-image: radial-gradient(circle at 1px 1px, var(--copper-300) 1px, transparent 0);
    background-size: 32px 32px;
    pointer-events: none;
}

/* ============================================
   8. MINING LAB SECTION
   ============================================ */
.mining-lab {
    padding: var(--space-5xl) 0;
    position: relative;
    overflow: hidden;
}

.lab-background {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.lab-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(184, 115, 51, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(184, 115, 51, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
}

.mining-lab .section-header {
    text-align: center;
    margin-bottom: var(--space-4xl);
    position: relative;
    z-index: 2;
}

.projects-showcase {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--space-2xl);
    position: relative;
    z-index: 2;
}

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

.project-tab {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-radius: 12px;
    text-align: left;
    transition: all var(--duration-normal) var(--ease-out-expo);
    border: 1px solid transparent;
    background: transparent;
}

.project-tab:hover {
    background: rgba(184, 115, 51, 0.05);
}

.project-tab.active {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border-color: var(--glass-border);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.tab-num {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--copper-400);
    opacity: 0.5;
    min-width: 24px;
}

.project-tab.active .tab-num {
    opacity: 1;
}

.tab-title {
    font-family: var(--font-heading);
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.project-tab.active .tab-title {
    color: var(--text-primary);
}

.projects-display {
    position: relative;
    min-height: 500px;
}

.project-panel {
    position: absolute;
    inset: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    opacity: 0;
    transform: translateX(30px);
    pointer-events: none;
    transition: all var(--duration-slower) var(--ease-out-expo);
}

.project-panel.active {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
    position: relative;
}

.project-visual {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
}

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 7/5;
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10, 10, 12, 0.9) 0%, transparent 50%);
    display: flex;
    align-items: flex-end;
    padding: var(--space-xl);
}

.project-stats {
    display: flex;
    gap: var(--space-2xl);
}

.p-stat {
    display: flex;
    flex-direction: column;
}

.p-stat-value {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--copper-300);
}

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

.project-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-name {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.project-lead {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--copper-300);
    margin-bottom: var(--space-lg);
}

.project-desc {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.tag {
    display: inline-flex;
    padding: var(--space-xs) var(--space-md);
    background: rgba(184, 115, 51, 0.1);
    border: 1px solid var(--border-subtle);
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--copper-200);
}

.projects-mobile-nav {
    display: none;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.mobile-prev,
.mobile-next {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-normal) ease;
}

.mobile-prev:hover,
.mobile-next:hover {
    background: rgba(184, 115, 51, 0.2);
    border-color: var(--copper-400);
}

.mobile-prev svg,
.mobile-next svg {
    width: 20px;
    height: 20px;
}

.mobile-dots {
    display: flex;
    gap: var(--space-sm);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--graphite-600);
    transition: all var(--duration-normal) ease;
    cursor: pointer;
}

.dot.active {
    background: var(--copper-400);
    width: 24px;
    border-radius: 4px;
}

/* ============================================
   9. CONTACT SECTION
   ============================================ */
.contact {
    padding: var(--space-5xl) 0;
    position: relative;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-4xl);
    align-items: start;
}

.contact-info {
    padding-top: var(--space-xl);
}

.contact-desc {
    color: var(--text-secondary);
    font-size: 1.0625rem;
    line-height: 1.8;
    margin-bottom: var(--space-2xl);
    max-width: 480px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-md) var(--space-lg);
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.contact-method:hover {
    border-color: var(--border-medium);
    transform: translateX(4px);
}

.method-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(184, 115, 51, 0.1);
    color: var(--copper-400);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.method-icon.icon-alt {
    background: rgba(255, 140, 0, 0.1);
    color: var(--amber-400);
}

.method-icon svg {
    width: 24px;
    height: 24px;
}

.method-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

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

.method-value {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

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

.social-link {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--graphite-800);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-normal) ease;
}

.social-link:hover {
    background: var(--copper-500);
    color: var(--graphite-950);
    transform: translateY(-2px);
}

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

/* Contact Form */
.contact-form-container {
    position: relative;
}

.contact-form {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: var(--space-2xl);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    background: var(--graphite-800);
    border: 1px solid var(--graphite-700);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    transition: all var(--duration-normal) ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--copper-400);
    box-shadow: 0 0 0 3px rgba(184, 115, 51, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--graphite-500);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b6b78' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-submit {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: linear-gradient(135deg, var(--copper-500), var(--copper-400));
    color: var(--graphite-950);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    border-radius: 10px;
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(184, 115, 51, 0.4);
}

.form-submit svg {
    width: 20px;
    height: 20px;
}

.form-success {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    opacity: 0;
    pointer-events: none;
    transform: scale(0.95);
    transition: all var(--duration-slower) var(--ease-out-expo);
}

.form-success.visible {
    opacity: 1;
    pointer-events: auto;
    transform: scale(1);
}

.success-icon {
    width: 64px;
    height: 64px;
    color: var(--copper-400);
    margin-bottom: var(--space-lg);
}

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

.form-success h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.form-success p {
    color: var(--text-secondary);
}

/* ============================================
   10. FOOTER
   ============================================ */
.footer {
    padding: var(--space-4xl) 0 var(--space-xl);
    border-top: 1px solid var(--border-subtle);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.footer-logo .logo-icon {
    width: 36px;
    height: 36px;
}

.footer-logo .logo-main {
    font-size: 1rem;
}

.footer-logo .logo-sub {
    font-size: 0.6875rem;
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.9375rem;
    line-height: 1.6;
    max-width: 280px;
}

.footer-heading {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
}

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

.footer-nav a {
    color: var(--text-muted);
    font-size: 0.9375rem;
    transition: all var(--duration-fast) ease;
}

.footer-nav a:hover {
    color: var(--copper-300);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-subtle);
}

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

.footer-location {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-location svg {
    width: 16px;
    height: 16px;
}

/* ============================================
   11. RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1200px) {
    .programs-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .projects-showcase {
        grid-template-columns: 240px 1fr;
    }
}

@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--space-3xl);
    }
    
    .about-content {
        padding-left: 0;
    }
    
    .about-features {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-3xl);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-2xl);
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        align-items: stretch;
        padding: calc(var(--space-4xl) + 60px) var(--space-xl) var(--space-xl);
        gap: var(--space-xs);
        transition: right var(--duration-normal) var(--ease-out-expo);
        z-index: var(--z-dropdown);
        border-left: 1px solid var(--border-subtle);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        padding: var(--space-md);
        font-size: 1.125rem;
    }
    
    .nav-cta {
        margin-left: 0;
        margin-top: var(--space-md);
        text-align: center;
        justify-content: center;
    }
    
    .hero {
        padding-top: calc(var(--space-4xl) + 40px);
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-xl);
        align-items: center;
    }
    
    .stat-item {
        align-items: center;
    }
    
    .stat-label {
        text-align: center;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .programs-grid {
        grid-template-columns: 1fr;
    }
    
    .program-card {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .card-content {
        min-height: auto;
    }
    
    .projects-showcase {
        grid-template-columns: 1fr;
    }
    
    .projects-nav {
        display: none;
    }
    
    .project-panel {
        position: relative;
        grid-template-columns: 1fr;
        opacity: 1;
        transform: none;
        pointer-events: auto;
        display: none;
    }
    
    .project-panel.active {
        display: grid;
    }
    
    .projects-mobile-nav {
        display: flex;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-logo {
        justify-content: center;
    }
    
    .footer-tagline {
        margin-left: auto;
        margin-right: auto;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .section-container {
        padding: 0 var(--space-md);
    }
    
    .nav-container {
        padding: 0 var(--space-md);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .contact-form {
        padding: var(--space-xl);
    }
}

/* ============================================
   12. 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;
    }
}

/* ============================================
   13. SELECTION STYLES
   ============================================ */
::selection {
    background: rgba(184, 115, 51, 0.3);
    color: var(--text-primary);
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--graphite-900);
}

::-webkit-scrollbar-thumb {
    background: var(--graphite-600);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--copper-500);
}