/* ============================================
   QUANTUM AI ACADEMY — STYLES
   Академия интеллектуальной гидроэнергетики
   ============================================ */

/* --------------------------------------------
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   -------------------------------------------- */
:root {
    /* Core colors — hydro energy palette */
    --color-deep: #0a1628;
    --color-navy: #0f1d3d;
    --color-royal: #1a3a6b;
    --color-azure: #2563eb;
    --color-cyan: #06b6d4;
    --color-teal: #14b8a6;
    --color-mint: #5eead4;
    --color-silver: #94a3b8;
    --color-platinum: #cbd5e1;
    --color-white: #f8fafc;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-azure) 0%, var(--color-cyan) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--color-teal) 0%, var(--color-mint) 100%);
    --gradient-dark: linear-gradient(180deg, var(--color-deep) 0%, var(--color-navy) 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    
    /* Typography */
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Inter', 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;
    
    /* Animation */
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --duration-fast: 0.2s;
    --duration-normal: 0.4s;
    --duration-slow: 0.8s;
    
    /* Glassmorphism */
    --glass-bg: rgba(10, 22, 40, 0.6);
    --glass-border: rgba(148, 163, 184, 0.15);
    --glass-blur: 16px;
    
    /* Layout */
    --container-max: 1280px;
    --container-padding: clamp(1rem, 5vw, 3rem);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;
}

/* --------------------------------------------
   2. RESET & BASE
   -------------------------------------------- */
*, *::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(--color-platinum);
    background: var(--color-deep);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

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

/* --------------------------------------------
   3. ANIMATED CANVAS BACKGROUND
   -------------------------------------------- */
#hydro-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* --------------------------------------------
   4. GLASSMORPHISM UTILITY
   -------------------------------------------- */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
}

/* --------------------------------------------
   5. NAVIGATION
   -------------------------------------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-sm) 0;
    transition: all var(--duration-normal) var(--ease-smooth);
}

.navbar.scrolled {
    background: rgba(10, 22, 40, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-white);
}

.logo-icon {
    width: 40px;
    height: 40px;
    color: var(--color-cyan);
}

.logo-wave {
    animation: wave-pulse 3s ease-in-out infinite;
}

.logo-wave:nth-child(2) { animation-delay: 0.3s; }
.logo-wave:nth-child(3) { animation-delay: 0.6s; }

@keyframes wave-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.logo-accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-white);
    transition: all var(--duration-fast) var(--ease-smooth);
    transform-origin: center;
}

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

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

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

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

.nav-link {
    position: relative;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-silver);
    transition: color var(--duration-fast);
    padding: var(--space-xs) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--duration-normal) var(--ease-smooth);
}

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

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

.nav-cta {
    padding: var(--space-xs) var(--space-md);
    background: var(--gradient-primary);
    color: var(--color-white);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: all var(--duration-fast) var(--ease-smooth);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(37, 99, 235, 0.3);
}

/* --------------------------------------------
   6. BUTTONS
   -------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--duration-fast) var(--ease-smooth);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left var(--duration-slow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(37, 99, 235, 0.4);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.05);
    border-color: var(--color-cyan);
}

.btn-arrow {
    width: 18px;
    height: 18px;
    transition: transform var(--duration-fast);
}

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

.btn-full {
    width: 100%;
    justify-content: center;
}

/* --------------------------------------------
   7. HERO SECTION
   -------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(var(--space-3xl) + 60px) var(--container-padding) var(--space-2xl);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(37, 99, 235, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 80%, rgba(6, 182, 212, 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 680px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    background: rgba(20, 184, 166, 0.1);
    border: 1px solid rgba(20, 184, 166, 0.2);
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-mint);
    margin-bottom: var(--space-lg);
}

.badge-pulse {
    width: 8px;
    height: 8px;
    background: var(--color-teal);
    border-radius: 50%;
    animation: pulse-ring 2s ease-out infinite;
}

@keyframes pulse-ring {
    0% { box-shadow: 0 0 0 0 rgba(20, 184, 166, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(20, 184, 166, 0); }
    100% { box-shadow: 0 0 0 0 rgba(20, 184, 166, 0); }
}

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

.title-line {
    display: block;
    opacity: 0;
    transform: translateY(30px);
    animation: title-reveal 0.8s var(--ease-smooth) forwards;
}

.title-line:nth-child(1) { animation-delay: 0.2s; }
.title-line:nth-child(2) { animation-delay: 0.4s; }
.title-line:nth-child(3) { animation-delay: 0.6s; }
.title-line:nth-child(4) { animation-delay: 0.8s; }

@keyframes title-reveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.title-line.highlight {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.125rem);
    line-height: 1.7;
    color: var(--color-silver);
    margin-bottom: var(--space-xl);
    max-width: 520px;
    opacity: 0;
    animation: fade-up 0.8s var(--ease-smooth) 1s forwards;
}

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

.hero-cta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    opacity: 0;
    animation: fade-up 0.8s var(--ease-smooth) 1.2s forwards;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: var(--space-xl);
    opacity: 0;
    animation: fade-up 0.8s var(--ease-smooth) 1.4s forwards;
}

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

.stat-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-cyan);
    line-height: 1;
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--color-silver);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Hero Visual — Holographic Turbine */
.hero-visual {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: 500px;
    height: 500px;
    opacity: 0;
    animation: fade-in 1.5s var(--ease-smooth) 0.5s forwards;
}

@keyframes fade-in {
    to { opacity: 1; }
}

.turbine-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.turbine-hologram {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
}

.turbine-ring {
    position: absolute;
    border: 1px solid;
    border-radius: 50%;
    animation: ring-rotate 10s linear infinite;
}

.ring-1 {
    width: 100%;
    height: 100%;
    border-color: rgba(6, 182, 212, 0.3);
    animation-duration: 15s;
}

.ring-2 {
    width: 70%;
    height: 70%;
    top: 15%;
    left: 15%;
    border-color: rgba(37, 99, 235, 0.4);
    animation-direction: reverse;
    animation-duration: 12s;
}

.ring-3 {
    width: 40%;
    height: 40%;
    top: 30%;
    left: 30%;
    border-color: rgba(20, 184, 166, 0.5);
    animation-duration: 8s;
}

@keyframes ring-rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.turbine-core {
    position: absolute;
    top: 45%;
    left: 45%;
    width: 10%;
    height: 10%;
    background: var(--gradient-primary);
    border-radius: 50%;
    box-shadow: 0 0 40px rgba(6, 182, 212, 0.5);
    animation: core-pulse 3s ease-in-out infinite;
}

@keyframes core-pulse {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.2); opacity: 1; }
}

.turbine-blade {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120px;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--color-cyan), transparent);
    transform-origin: left center;
    animation: blade-spin 4s linear infinite;
}

.blade-1 { transform: translate(0, -50%) rotate(0deg); }
.blade-2 { transform: translate(0, -50%) rotate(120deg); }
.blade-3 { transform: translate(0, -50%) rotate(240deg); }

@keyframes blade-spin {
    from { transform: translate(0, -50%) rotate(var(--r, 0deg)); }
    to { transform: translate(0, -50%) rotate(calc(var(--r, 0deg) + 360deg)); }
}

.data-streams {
    position: absolute;
    inset: 0;
}

.data-line {
    position: absolute;
    width: 2px;
    height: 60px;
    background: linear-gradient(to bottom, transparent, var(--color-cyan), transparent);
    opacity: 0.6;
    animation: data-flow 2s linear infinite;
}

.line-1 { top: 10%; left: 20%; animation-delay: 0s; }
.line-2 { top: 30%; right: 15%; animation-delay: 0.5s; }
.line-3 { bottom: 20%; left: 30%; animation-delay: 1s; }
.line-4 { bottom: 10%; right: 25%; animation-delay: 1.5s; }

@keyframes data-flow {
    0% { transform: translateY(-20px); opacity: 0; }
    50% { opacity: 0.6; }
    100% { transform: translateY(20px); opacity: 0; }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    opacity: 0;
    animation: fade-up 0.8s var(--ease-smooth) 2s forwards;
}

.scroll-mouse {
    width: 24px;
    height: 36px;
    border: 2px solid var(--color-silver);
    border-radius: 12px;
    position: relative;
}

.scroll-wheel {
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-cyan);
    border-radius: 2px;
    animation: wheel-scroll 1.5s ease-in-out infinite;
}

@keyframes wheel-scroll {
    0%, 100% { top: 6px; opacity: 1; }
    50% { top: 18px; opacity: 0; }
}

.scroll-indicator span {
    font-size: 0.75rem;
    color: var(--color-silver);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* --------------------------------------------
   8. SECTIONS COMMON
   -------------------------------------------- */
.section-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-3xl) var(--container-padding);
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto var(--space-2xl);
}

.section-header.left {
    text-align: left;
    margin-left: 0;
}

.section-tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-cyan);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-white);
    margin-bottom: var(--space-md);
}

.section-desc {
    font-size: 1.0625rem;
    color: var(--color-silver);
    line-height: 1.7;
}

/* --------------------------------------------
   9. ABOUT SECTION
   -------------------------------------------- */
.about {
    position: relative;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.about-card {
    padding: var(--space-lg);
    transition: all var(--duration-normal) var(--ease-smooth);
}

.about-card:hover {
    transform: translateY(-8px);
    border-color: rgba(6, 182, 212, 0.3);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.about-card.featured {
    grid-column: span 2;
    grid-row: span 2;
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
}

.card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-slow) var(--ease-smooth);
}

.about-card:hover .card-image img {
    transform: scale(1.05);
}

.card-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, var(--color-deep) 0%, transparent 100%);
}

.card-content {
    padding: var(--space-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

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

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

.about-card h3 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--space-sm);
}

.about-card p {
    font-size: 0.9375rem;
    color: var(--color-silver);
    line-height: 1.6;
}

.about-showcase {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.showcase-image {
    position: relative;
    height: 500px;
}

.showcase-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.showcase-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(10, 22, 40, 0.95) 0%, rgba(10, 22, 40, 0.6) 50%, transparent 100%);
    display: flex;
    align-items: center;
    padding: var(--space-2xl);
}

.showcase-data {
    max-width: 360px;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

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

.data-label {
    font-size: 0.8125rem;
    color: var(--color-silver);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.data-value {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-cyan);
}

.data-bar {
    height: 4px;
    background: rgba(148, 163, 184, 0.2);
    border-radius: 2px;
    overflow: hidden;
}

.data-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 1.5s var(--ease-smooth);
}

/* --------------------------------------------
   10. PROGRAMS SECTION
   -------------------------------------------- */
.programs {
    position: relative;
    background: linear-gradient(180deg, transparent 0%, rgba(15, 29, 61, 0.5) 50%, transparent 100%);
}

.programs-grid {
    display: grid;
    grid-template-columns: repeat(2, 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: var(--radius-lg);
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-smooth);
}

.program-card:hover {
    transform: translateY(-6px);
    border-color: rgba(6, 182, 212, 0.3);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.4);
}

.program-card.featured {
    border-color: rgba(6, 182, 212, 0.4);
    box-shadow: 0 0 60px rgba(6, 182, 212, 0.1);
}

.program-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    z-index: 2;
    padding: var(--space-xs) var(--space-sm);
    background: var(--gradient-secondary);
    color: var(--color-deep);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    border-radius: var(--radius-sm);
}

.program-visual {
    position: relative;
    height: 180px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.program-wave, .program-particles, .program-ripple, .program-grid {
    position: absolute;
    inset: 0;
}

.program-wave {
    background: radial-gradient(ellipse at center, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
    animation: wave-drift 4s ease-in-out infinite;
}

.program-particles {
    background: radial-gradient(circle at 30% 50%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(37, 99, 235, 0.1) 0%, transparent 50%);
    animation: particle-shift 6s ease-in-out infinite;
}

.program-ripple {
    background: repeating-radial-gradient(circle at center, transparent 0, transparent 10px, rgba(20, 184, 166, 0.05) 10px, rgba(20, 184, 166, 0.05) 20px);
    animation: ripple-expand 3s ease-out infinite;
}

.program-grid {
    background-image: 
        linear-gradient(rgba(37, 99, 235, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37, 99, 235, 0.05) 1px, transparent 1px);
    background-size: 30px 30px;
    animation: grid-scroll 20s linear infinite;
}

@keyframes wave-drift {
    0%, 100% { transform: translateX(-10px) scale(1); }
    50% { transform: translateX(10px) scale(1.05); }
}

@keyframes particle-shift {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

@keyframes ripple-expand {
    0% { transform: scale(0.8); opacity: 1; }
    100% { transform: scale(1.2); opacity: 0; }
}

@keyframes grid-scroll {
    0% { background-position: 0 0; }
    100% { background-position: 30px 30px; }
}

.program-icon {
    position: relative;
    z-index: 1;
    width: 64px;
    height: 64px;
    color: var(--color-cyan);
    opacity: 0.8;
    transition: all var(--duration-normal);
}

.program-card:hover .program-icon {
    transform: scale(1.1);
    opacity: 1;
}

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

.program-duration {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-cyan);
    margin-bottom: var(--space-sm);
}

.program-content h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--space-sm);
}

.program-content p {
    font-size: 0.9375rem;
    color: var(--color-silver);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.program-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.program-features li {
    position: relative;
    padding-left: var(--space-md);
    font-size: 0.875rem;
    color: var(--color-platinum);
}

.program-features li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-cyan);
}

.program-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-cyan);
    transition: gap var(--duration-fast);
}

.program-link:hover {
    gap: var(--space-sm);
}

/* --------------------------------------------
   11. SYSTEMS SECTION
   -------------------------------------------- */
.systems {
    position: relative;
}

.systems-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    align-items: center;
}

.system-panel {
    padding: var(--space-lg);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--glass-border);
}

.panel-status {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.8125rem;
    color: var(--color-mint);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--color-teal);
    border-radius: 50%;
    animation: status-blink 2s ease-in-out infinite;
}

.status-dot.active {
    box-shadow: 0 0 8px var(--color-teal);
}

@keyframes status-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.panel-id {
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--color-silver);
    letter-spacing: 0.1em;
}

.metric-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

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

.metric-value {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-white);
    line-height: 1;
}

.metric-unit {
    font-size: 0.75rem;
    color: var(--color-cyan);
}

.metric-label {
    font-size: 0.8125rem;
    color: var(--color-silver);
}

.metric-chart {
    width: 100px;
    height: 40px;
}

.sparkline {
    width: 100%;
    height: 100%;
    color: var(--color-cyan);
    opacity: 0.6;
}

.sparkline-path {
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
    animation: draw-sparkline 2s var(--ease-smooth) forwards;
}

@keyframes draw-sparkline {
    to { stroke-dashoffset: 0; }
}

.progress-ring {
    width: 48px;
    height: 48px;
}

.progress-ring svg {
    transform: rotate(-90deg);
}

.progress-bg {
    fill: none;
    stroke: rgba(148, 163, 184, 0.2);
    stroke-width: 3;
}

.progress-fill {
    fill: none;
    stroke: var(--color-cyan);
    stroke-width: 3;
    stroke-linecap: round;
    transition: stroke-dashoffset 1.5s var(--ease-smooth);
}

.system-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 400px;
}

.system-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.system-image-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.overlay-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(6, 182, 212, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(6, 182, 212, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
}

.overlay-scan {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-cyan), transparent);
    animation: scan-line 3s linear infinite;
}

@keyframes scan-line {
    0% { top: 0; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}

/* --------------------------------------------
   12. HYDROLAB SECTION
   -------------------------------------------- */
.hydrolab {
    position: relative;
    background: linear-gradient(180deg, transparent 0%, rgba(15, 29, 61, 0.3) 100%);
}

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

.project-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-smooth);
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: rgba(6, 182, 212, 0.3);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.4);
}

.project-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-slow) var(--ease-smooth);
}

.project-card:hover .project-image img {
    transform: scale(1.08);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10, 22, 40, 0.9) 0%, transparent 60%);
    display: flex;
    align-items: flex-end;
    padding: var(--space-md);
}

.project-year {
    padding: 4px 12px;
    background: rgba(37, 99, 235, 0.2);
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-cyan);
}

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

.project-tag {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(20, 184, 166, 0.1);
    border: 1px solid rgba(20, 184, 166, 0.2);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-mint);
    margin-bottom: var(--space-sm);
}

.project-content h3 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--space-sm);
}

.project-content p {
    font-size: 0.9375rem;
    color: var(--color-silver);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.project-meta {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.meta-item {
    font-size: 0.8125rem;
    color: var(--color-silver);
}

/* --------------------------------------------
   13. CONTACT SECTION
   -------------------------------------------- */
.contact {
    position: relative;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-2xl);
    align-items: start;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    transition: all var(--duration-fast);
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.03);
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: var(--radius-md);
    color: var(--color-cyan);
    flex-shrink: 0;
}

.contact-icon svg {
    width: 20px;
    height: 20px;
}

.contact-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.contact-label {
    font-size: 0.8125rem;
    color: var(--color-silver);
}

.contact-value {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-white);
    line-height: 1.5;
}

.contact-social {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--color-silver);
    transition: all var(--duration-fast);
}

.social-link:hover {
    background: rgba(37, 99, 235, 0.1);
    border-color: rgba(37, 99, 235, 0.3);
    color: var(--color-cyan);
    transform: translateY(-3px);
}

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

/* Contact Form */
.contact-form-wrapper {
    padding: var(--space-xl);
    position: relative;
}

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

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

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-platinum);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--space-sm) var(--space-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-family: inherit;
    font-size: 0.9375rem;
    transition: all var(--duration-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-cyan);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

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

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-md) center;
}

.form-group select option {
    background: var(--color-navy);
    color: var(--color-white);
}

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

.form-success {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-xl);
    text-align: center;
    opacity: 0;
    pointer-events: none;
    transition: all var(--duration-normal);
}

.form-success.visible {
    opacity: 1;
    pointer-events: all;
}

.success-icon {
    width: 64px;
    height: 64px;
    color: var(--color-teal);
}

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

.form-success h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-white);
}

.form-success p {
    color: var(--color-silver);
    max-width: 320px;
}

/* --------------------------------------------
   14. FOOTER
   -------------------------------------------- */
.footer {
    position: relative;
    border-top: 1px solid var(--glass-border);
    background: rgba(10, 22, 40, 0.8);
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-2xl) var(--container-padding) var(--space-lg);
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand .logo {
    margin-bottom: var(--space-md);
}

.footer-desc {
    font-size: 0.9375rem;
    color: var(--color-silver);
    line-height: 1.7;
    max-width: 320px;
}

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

.footer-nav-col h4 {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--space-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.footer-nav-col a {
    font-size: 0.9375rem;
    color: var(--color-silver);
    transition: color var(--duration-fast);
}

.footer-nav-col a:hover {
    color: var(--color-cyan);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--glass-border);
    flex-wrap: wrap;
    gap: var(--space-sm);
}

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

.footer-legal {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.8125rem;
    color: var(--color-silver);
}

.footer-legal .separator {
    color: var(--glass-border);
}

/* --------------------------------------------
   15. SCROLL ANIMATIONS
   -------------------------------------------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--duration-slow) var(--ease-smooth);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --------------------------------------------
   16. RESPONSIVE DESIGN
   -------------------------------------------- */
@media (max-width: 1024px) {
    .hero-visual {
        width: 350px;
        height: 350px;
        right: 0;
        opacity: 0.4;
    }
    
    .about-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-card.featured {
        grid-column: span 2;
        grid-row: span 1;
        flex-direction: row;
    }
    
    .card-image {
        width: 200px;
        height: auto;
        flex-shrink: 0;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .systems-showcase {
        grid-template-columns: 1fr;
    }
    
    .system-image {
        order: -1;
        height: 300px;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        flex-direction: column;
        justify-content: center;
        gap: var(--space-xl);
        background: rgba(10, 22, 40, 0.98);
        backdrop-filter: blur(20px);
        padding: var(--space-2xl);
        transition: right var(--duration-normal) var(--ease-smooth);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        font-size: 1.125rem;
    }
    
    .hero {
        padding-top: calc(var(--space-2xl) + 60px);
    }
    
    .hero-visual {
        display: none;
    }
    
    .hero-stats {
        gap: var(--space-lg);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-card.featured {
        grid-column: span 1;
        flex-direction: column;
    }
    
    .card-image {
        width: 100%;
        height: 180px;
    }
    
    .programs-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .showcase-image {
        height: 400px;
    }
    
    .showcase-overlay {
        padding: var(--space-lg);
    }
    
    .footer-nav {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .section-container {
        padding-top: var(--space-2xl);
        padding-bottom: var(--space-2xl);
    }
    
    .contact-form-wrapper {
        padding: var(--space-lg);
    }
}

/* --------------------------------------------
   17. 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;
    }
}

/* --------------------------------------------
   18. PRINT STYLES
   -------------------------------------------- */
@media print {
    #hydro-canvas,
    .hero-visual,
    .scroll-indicator,
    .nav-toggle,
    .nav-cta {
        display: none !important;
    }
    
    .navbar {
        position: static;
        background: white;
    }
    
    body {
        color: black;
        background: white;
    }
    
    .glass {
        background: white;
        border: 1px solid #ccc;
    }
}