/* =====================================================
   VERTEX AI OCEAN ENERGY ACADEMY
   Premium Ocean Energy Campus Styles
   ===================================================== */

/* -----------------------------------------------------
   CSS CUSTOM PROPERTIES (Design Tokens)
   ----------------------------------------------------- */
:root {
    /* Ocean Color Palette: Deep Turquoise, Midnight, Cyan Accents */
    --color-turquoise-50: #ecfeff;
    --color-turquoise-100: #cffafe;
    --color-turquoise-200: #a5f3fc;
    --color-turquoise-300: #67e8f9;
    --color-turquoise-400: #22d3ee;
    --color-turquoise-500: #06b6d4;
    --color-turquoise-600: #0891b2;
    --color-turquoise-700: #0e7490;
    --color-turquoise-800: #155e75;
    --color-turquoise-900: #164e63;
    
    --color-midnight-50: #f0f9ff;
    --color-midnight-100: #e0f2fe;
    --color-midnight-200: #bae6fd;
    --color-midnight-300: #7dd3fc;
    --color-midnight-400: #38bdf8;
    --color-midnight-500: #0ea5e9;
    --color-midnight-600: #0284c7;
    --color-midnight-700: #0369a1;
    --color-midnight-800: #075985;
    --color-midnight-900: #0c4a6e;
    --color-midnight-950: #082f49;
    
    --color-deep-950: #020617;
    --color-deep-900: #0f172a;
    --color-deep-800: #1e293b;
    --color-deep-700: #334155;
    --color-deep-600: #475569;
    --color-deep-500: #64748b;
    --color-deep-400: #94a3b8;
    --color-deep-300: #cbd5e1;
    --color-deep-200: #e2e8f0;
    --color-deep-100: #f1f5f9;
    
    /* Holographic & Energy Accent Colors */
    --color-energy-cyan: #06b6d4;
    --color-energy-teal: #14b8a6;
    --color-energy-amber: #f59e0b;
    --color-energy-rose: #f43f5e;
    
    /* Ocean Gradients */
    --gradient-ocean: linear-gradient(180deg, #0891b2 0%, #0c4a6e 50%, #082f49 100%);
    --gradient-surface: linear-gradient(180deg, rgba(6,182,212,0.15) 0%, transparent 100%);
    --gradient-primary: linear-gradient(135deg, var(--color-turquoise-500) 0%, var(--color-midnight-600) 100%);
    --gradient-glass: linear-gradient(180deg, rgba(255,255,255,0.06) 0%, rgba(255,255,255,0.02) 100%);
    --gradient-holo: linear-gradient(135deg, var(--color-energy-cyan), var(--color-energy-teal), var(--color-energy-amber));
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Outfit', 'Inter', sans-serif;
    
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    --text-7xl: 4.5rem;
    
    --leading-tight: 1.2;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-ocean: 0 0 40px rgba(6, 182, 212, 0.12);
    --shadow-ocean-lg: 0 0 80px rgba(6, 182, 212, 0.2);
    
    /* Borders */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slower: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-index Scale */
    --z-base: 0;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--color-deep-200);
    background-color: var(--color-deep-950);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

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

/* -----------------------------------------------------
   UTILITY CLASSES
   ----------------------------------------------------- */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

@media (min-width: 640px) {
    .container {
        padding: 0 var(--space-8);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--space-12);
    }
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-turquoise-400), var(--color-midnight-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-turquoise-400);
    margin-bottom: var(--space-4);
}

.section-tag::before {
    content: '';
    width: 24px;
    height: 2px;
    background: var(--color-turquoise-500);
    border-radius: var(--radius-full);
}

.section-title {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 700;
    line-height: var(--leading-tight);
    color: var(--color-white);
    margin-bottom: var(--space-6);
}

@media (min-width: 640px) {
    .section-title {
        font-size: var(--text-4xl);
    }
}

@media (min-width: 1024px) {
    .section-title {
        font-size: var(--text-5xl);
    }
}

.section-description {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    color: var(--color-deep-400);
    max-width: 600px;
}

.section-description.center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

/* -----------------------------------------------------
   BUTTONS
   ----------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-icon {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-base);
}

.btn:hover .btn-icon {
    transform: translateX(3px);
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-ocean-lg);
}

.btn-glass {
    background: var(--gradient-glass);
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(6, 182, 212, 0.3);
}

.btn-full {
    width: 100%;
}

/* -----------------------------------------------------
   NAVIGATION
   ----------------------------------------------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--space-4) 0;
    transition: all var(--transition-slow);
}

.navbar.scrolled {
    background: rgba(2, 6, 23, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(6, 182, 212, 0.08);
    padding: var(--space-3) 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

@media (min-width: 640px) {
    .nav-container {
        padding: 0 var(--space-8);
    }
}

@media (min-width: 1024px) {
    .nav-container {
        padding: 0 var(--space-12);
    }
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-white);
}

.logo-symbol {
    width: 36px;
    height: 36px;
    color: var(--color-turquoise-400);
}

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

.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
    z-index: var(--z-dropdown);
}

@media (min-width: 768px) {
    .nav-toggle {
        display: none;
    }
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-white);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

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

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

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

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

@media (max-width: 767px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        flex-direction: column;
        justify-content: center;
        background: rgba(2, 6, 23, 0.98);
        backdrop-filter: blur(20px);
        transition: right var(--transition-slower);
        gap: var(--space-8);
    }
    
    .nav-menu.active {
        right: 0;
    }
}

.nav-link {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-deep-300);
    transition: color var(--transition-base);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-turquoise-400);
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}

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

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

/* -----------------------------------------------------
   HERO SECTION - OCEAN THEME
   ----------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: calc(var(--space-24) + 60px) 0 var(--space-16);
}

.hero-ocean {
    position: absolute;
    inset: 0;
    z-index: var(--z-base);
}

.ocean-surface {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 40%;
    background: linear-gradient(180deg, 
        rgba(6, 182, 212, 0.08) 0%, 
        rgba(8, 145, 178, 0.05) 50%,
        transparent 100%
    );
}

.ocean-depth {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60%;
    background: linear-gradient(180deg, 
        transparent 0%,
        rgba(8, 47, 73, 0.3) 30%,
        rgba(2, 6, 23, 0.8) 100%
    );
}

.wave-container {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 200px;
}

.bubble-field {
    position: absolute;
    inset: 0;
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    width: 100%;
}

@media (min-width: 640px) {
    .hero-content {
        padding: 0 var(--space-8);
    }
}

@media (min-width: 1024px) {
    .hero-content {
        padding: 0 var(--space-12);
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--space-16);
        align-items: center;
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-turquoise-400);
    margin-bottom: var(--space-6);
    animation: fadeInUp 0.6s ease-out;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--color-turquoise-400);
    border-radius: var(--radius-full);
    animation: pulse 2s infinite;
}

.hero-title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 700;
    line-height: var(--leading-tight);
    color: var(--color-white);
    margin-bottom: var(--space-6);
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

@media (min-width: 640px) {
    .hero-title {
        font-size: var(--text-5xl);
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: var(--text-6xl);
    }
}

.hero-description {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    color: var(--color-deep-400);
    margin-bottom: var(--space-8);
    max-width: 540px;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.hero-stats {
    display: flex;
    gap: var(--space-8);
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

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

.stat-number {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-white);
    line-height: var(--leading-tight);
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--color-deep-500);
    margin-top: var(--space-1);
}

/* Hero Visual / Turbine Hologram */
.hero-visual {
    position: relative;
    display: none;
    animation: fadeIn 1s ease-out 0.5s both;
}

@media (min-width: 1024px) {
    .hero-visual {
        display: block;
    }
}

.turbine-hologram {
    position: relative;
    width: 420px;
    height: 420px;
    margin: 0 auto;
}

.turbine-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid rgba(6, 182, 212, 0.15);
    border-radius: 50%;
    animation: rotate 25s linear infinite;
}

.ring-outer {
    width: 380px;
    height: 380px;
    animation-duration: 25s;
}

.ring-mid {
    width: 320px;
    height: 320px;
    border-color: rgba(14, 165, 233, 0.12);
    animation-duration: 20s;
    animation-direction: reverse;
}

.ring-inner {
    width: 260px;
    height: 260px;
    border-color: rgba(34, 211, 238, 0.1);
    animation-duration: 15s;
}

.turbine-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 140px;
    height: 140px;
}

.turbine-blades {
    width: 100%;
    height: 100%;
    animation: rotate 8s linear infinite;
}

.blade-group {
    transform-origin: center;
}

.core-emitter {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.6) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse-glow 2s ease-in-out infinite;
}

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

/* Floating Panels */
.floating-panels {
    position: absolute;
    inset: 0;
}

.panel {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: rgba(15, 23, 42, 0.85);
    border: 1px solid rgba(6, 182, 212, 0.15);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(12px);
    animation: float 7s ease-in-out infinite;
}

.panel-output {
    top: 5%;
    right: -10px;
    animation-delay: 0s;
}

.panel-efficiency {
    bottom: 25%;
    left: -30px;
    animation-delay: -2.5s;
}

.panel-depth {
    bottom: 5%;
    right: 5%;
    animation-delay: -5s;
}

.panel-icon {
    font-size: var(--text-xl);
}

.panel-info {
    display: flex;
    flex-direction: column;
}

.panel-value {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--color-turquoise-400);
}

.panel-label {
    font-size: var(--text-xs);
    color: var(--color-deep-500);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: fadeIn 1s ease-out 1s both;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-turquoise-400), transparent);
    animation: scroll-bounce 2s ease-in-out infinite;
}

/* -----------------------------------------------------
   ABOUT SECTION
   ----------------------------------------------------- */
.about {
    padding: var(--space-24) 0;
    position: relative;
}

.about-grid {
    display: grid;
    gap: var(--space-12);
    align-items: center;
}

@media (min-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-16);
    }
}

.about-visual {
    position: relative;
    order: -1;
}

@media (min-width: 1024px) {
    .about-visual {
        order: 0;
    }
}

.about-image-container {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.about-image {
    width: 100%;
    height: 500px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(2, 6, 23, 0.85) 100%);
}

.depth-glow {
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, var(--color-turquoise-500), var(--color-midnight-500), var(--color-energy-teal));
    border-radius: var(--radius-2xl);
    opacity: 0.25;
    filter: blur(20px);
    z-index: -1;
}

.about-floating-metric {
    position: absolute;
    padding: var(--space-3) var(--space-4);
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid rgba(6, 182, 212, 0.15);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    animation: float 6s ease-in-out infinite;
}

.metric-1 {
    top: 15%;
    right: -20px;
    animation-delay: -1s;
}

.metric-2 {
    bottom: 20%;
    left: -25px;
    animation-delay: -3.5s;
}

.metric-value {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-turquoise-400);
}

.metric-label {
    font-size: var(--text-xs);
    color: var(--color-deep-500);
}

.about-content {
    position: relative;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    margin-top: var(--space-8);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-4);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(6, 182, 212, 0.2);
    transform: translateX(4px);
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.15), rgba(14, 165, 233, 0.15));
    border-radius: var(--radius-lg);
    color: var(--color-turquoise-400);
}

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

.feature-text h4 {
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--space-1);
}

.feature-text p {
    font-size: var(--text-sm);
    color: var(--color-deep-500);
}

/* -----------------------------------------------------
   PROGRAMS SECTION
   ----------------------------------------------------- */
.programs {
    padding: var(--space-24) 0;
    background: linear-gradient(180deg, var(--color-deep-950) 0%, rgba(6, 182, 212, 0.03) 50%, var(--color-deep-950) 100%);
}

.programs-grid {
    display: grid;
    gap: var(--space-6);
}

@media (min-width: 640px) {
    .programs-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .programs-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.program-card {
    position: relative;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transition: all var(--transition-slow);
}

.program-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-holo);
    transform: scaleX(0);
    transition: transform var(--transition-slow);
}

.program-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 32px 64px -12px rgba(0, 0, 0, 0.4);
}

.program-card:hover::before {
    transform: scaleX(1);
}

.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-slow);
    pointer-events: none;
}

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

.card-content {
    position: relative;
    padding: var(--space-8);
    z-index: 1;
}

.card-number {
    position: absolute;
    top: var(--space-6);
    right: var(--space-6);
    font-family: var(--font-display);
    font-size: var(--text-5xl);
    font-weight: 700;
    color: rgba(255, 255, 255, 0.03);
    line-height: 1;
}

.card-icon-large {
    width: 64px;
    height: 64px;
    margin-bottom: var(--space-6);
    color: var(--color-turquoise-400);
}

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

.card-title {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--space-3);
}

.card-description {
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--color-deep-500);
    margin-bottom: var(--space-6);
}

.card-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

.card-features li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-deep-400);
}

.card-features li::before {
    content: '→';
    color: var(--color-turquoise-400);
    font-size: var(--text-xs);
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-turquoise-400);
    transition: gap var(--transition-base);
}

.card-link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-base);
}

.card-link:hover {
    gap: var(--space-3);
}

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

/* -----------------------------------------------------
   OCEAN ENERGY LAB SECTION
   ----------------------------------------------------- */
.lab {
    padding: var(--space-24) 0;
}

.lab-grid {
    display: grid;
    gap: var(--space-6);
}

@media (min-width: 640px) {
    .lab-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .lab-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.lab-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transition: all var(--transition-slow);
    opacity: 0;
    transform: translateY(30px);
}

.lab-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.lab-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 32px 64px -12px rgba(0, 0, 0, 0.4);
}

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

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

.lab-card:hover .lab-image img {
    transform: scale(1.1);
}

.lab-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: flex-end;
    padding: var(--space-4);
    background: linear-gradient(180deg, transparent 50%, rgba(2, 6, 23, 0.9) 100%);
}

.lab-category {
    padding: var(--space-1) var(--space-3);
    background: rgba(6, 182, 212, 0.2);
    border: 1px solid rgba(6, 182, 212, 0.3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-turquoise-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.lab-content {
    padding: var(--space-6);
}

.lab-title {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--space-2);
}

.lab-description {
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--color-deep-500);
    margin-bottom: var(--space-4);
}

.lab-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.lab-author {
    font-size: var(--text-xs);
    color: var(--color-deep-600);
}

.lab-status {
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
}

.status-active {
    background: rgba(6, 182, 212, 0.15);
    color: var(--color-turquoise-400);
}

.status-pilot {
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-energy-amber);
}

.status-concept {
    background: rgba(244, 63, 94, 0.15);
    color: var(--color-energy-rose);
}

/* -----------------------------------------------------
   CONTACT SECTION
   ----------------------------------------------------- */
.contact {
    padding: var(--space-24) 0;
    background: linear-gradient(180deg, var(--color-deep-950) 0%, rgba(6, 182, 212, 0.02) 100%);
}

.contact-grid {
    display: grid;
    gap: var(--space-12);
}

@media (min-width: 1024px) {
    .contact-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-16);
        align-items: start;
    }
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-top: var(--space-8);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-4);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.02);
}

.contact-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.15), rgba(14, 165, 233, 0.15));
    border-radius: var(--radius-lg);
    color: var(--color-turquoise-400);
}

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

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

.contact-label {
    font-size: var(--text-xs);
    color: var(--color-deep-500);
    margin-bottom: var(--space-1);
}

.contact-value {
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--color-white);
}

.social-links {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-8);
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    color: var(--color-deep-400);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: rgba(6, 182, 212, 0.15);
    border-color: rgba(6, 182, 212, 0.3);
    color: var(--color-turquoise-400);
    transform: translateY(-2px);
}

.social-link svg {
    width: 18px;
    height: 18px;
}

/* Contact Form */
.contact-form-wrapper {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    backdrop-filter: blur(10px);
}

@media (min-width: 640px) {
    .contact-form-wrapper {
        padding: var(--space-10);
    }
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.form-row {
    display: grid;
    gap: var(--space-5);
}

@media (min-width: 640px) {
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-label {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-deep-300);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    color: var(--color-white);
    transition: all var(--transition-base);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-deep-600);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-turquoise-500);
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

.form-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='%2364748b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}

.form-select option {
    background: var(--color-deep-900);
    color: var(--color-white);
}

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

/* -----------------------------------------------------
   FOOTER
   ----------------------------------------------------- */
.footer {
    padding: var(--space-16) 0 var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    gap: var(--space-10);
    margin-bottom: var(--space-12);
}

@media (min-width: 640px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--space-4);
}

.footer-logo .logo-symbol {
    width: 32px;
    height: 32px;
    color: var(--color-turquoise-400);
}

.footer-tagline {
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--color-deep-500);
    max-width: 320px;
}

.footer-title {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-links a {
    font-size: var(--text-sm);
    color: var(--color-deep-500);
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-turquoise-400);
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

@media (min-width: 640px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-copyright {
    font-size: var(--text-sm);
    color: var(--color-deep-600);
}

.footer-legal {
    display: flex;
    gap: var(--space-6);
}

.footer-legal a {
    font-size: var(--text-sm);
    color: var(--color-deep-600);
    transition: color var(--transition-base);
}

.footer-legal a:hover {
    color: var(--color-deep-400);
}

/* -----------------------------------------------------
   TOAST NOTIFICATION
   ----------------------------------------------------- */
.toast {
    position: fixed;
    bottom: var(--space-8);
    right: var(--space-8);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    background: rgba(8, 47, 73, 0.95);
    border: 1px solid rgba(6, 182, 212, 0.3);
    border-radius: var(--radius-lg);
    transform: translateX(400px);
    opacity: 0;
    transition: all var(--transition-slow);
    z-index: var(--z-tooltip);
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-turquoise-500);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
}

.toast-message {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-white);
}

/* -----------------------------------------------------
   ANIMATIONS
   ----------------------------------------------------- */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

@keyframes pulse-glow {
    0%, 100% {
        opacity: 0.6;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

@keyframes rotate {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

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

@keyframes scroll-bounce {
    0%, 100% {
        transform: translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateY(10px);
        opacity: 0.5;
    }
}

/* -----------------------------------------------------
   WAVE ANIMATION
   ----------------------------------------------------- */
.wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 200%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 120' preserveAspectRatio='none'%3E%3Cpath d='M0,60 C200,100 400,20 600,60 C800,100 1000,20 1200,60 L1200,120 L0,120 Z' fill='rgba(6,182,212,0.05)'/%3E%3C/svg%3E");
    background-size: 50% 100%;
    animation: wave-move 15s linear infinite;
}

.wave:nth-child(2) {
    animation-duration: 20s;
    animation-direction: reverse;
    opacity: 0.5;
}

@keyframes wave-move {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* -----------------------------------------------------
   BUBBLE ANIMATION
   ----------------------------------------------------- */
.bubble {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.15), rgba(6,182,212,0.05));
    animation: bubble-rise linear infinite;
}

@keyframes bubble-rise {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        transform: translateY(-100px) scale(1);
        opacity: 0;
    }
}

/* -----------------------------------------------------
   ENERGY DATA POINTS
   ----------------------------------------------------- */
.data-point {
    position: absolute;
    font-family: var(--font-display);
    font-size: var(--text-xs);
    color: rgba(6, 182, 212, 0.35);
    animation: data-flicker 4s ease-in-out infinite;
}

@keyframes data-flicker {
    0%, 100% {
        opacity: 0.2;
    }
    50% {
        opacity: 0.7;
    }
}

/* -----------------------------------------------------
   LIVE OUTPUT ANIMATION
   ----------------------------------------------------- */
.output-pulse {
    animation: output-blink 2s ease-in-out infinite;
}

@keyframes output-blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

/* -----------------------------------------------------
   RESPONSIVE ADJUSTMENTS
   ----------------------------------------------------- */
@media (max-width: 639px) {
    .hero-stats {
        flex-direction: column;
        gap: var(--space-4);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .about-floating-metric {
        display: none;
    }
    
    .floating-panels {
        display: none;
    }
}

@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;
    }
}

/* -----------------------------------------------------
   SELECTION STYLES
   ----------------------------------------------------- */
::selection {
    background: rgba(6, 182, 212, 0.3);
    color: var(--color-white);
}

::-moz-selection {
    background: rgba(6, 182, 212, 0.3);
    color: var(--color-white);
}

/* -----------------------------------------------------
   SCROLLBAR STYLES
   ----------------------------------------------------- */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-deep-950);
}

::-webkit-scrollbar-thumb {
    background: var(--color-deep-700);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-deep-600);
}