/* ===== CSS VARIABLES ===== */
:root {
    --color-primary: #6366f1;
    --color-secondary: #8b5cf6;
    --color-accent: #06b6d4;
    --color-pink: #ec4899;
    --color-bg: #0a0a0f;
    --color-bg-light: #14141f;
    --color-text: #ffffff;
    --color-text-dim: #a1a1aa;
    --color-border: rgba(255, 255, 255, 0.1);
    
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s ease;
    --transition-slow: 0.6s ease;
}

/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

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

/* ===== THREE.JS CANVAS ===== */
#webgl-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ===== CURSOR FOLLOWER ===== */
.cursor-follower {
    position: fixed;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease, border-color 0.3s ease;
    mix-blend-mode: difference;
}

.cursor-follower.expanded {
    width: 50px;
    height: 50px;
    border-color: var(--color-accent);
}

/* ===== CONTAINER ===== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 1;
}

/* ===== NAVIGATION ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: all var(--transition-medium);
}

.nav.scrolled {
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-sm) 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.logo.large {
    font-size: 2rem;
}

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

.nav-link {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:not(.btn-primary):hover {
    color: var(--color-primary);
}

.nav-link:not(.btn-primary)::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-fast);
}

.nav-link:not(.btn-primary):hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-fast);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-text);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-text);
}

.btn-secondary:hover {
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

.btn.large {
    padding: 1.25rem 3rem;
    font-size: 1.1rem;
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: var(--spacing-xl) var(--spacing-md);
    overflow: hidden;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--color-primary);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 3s ease infinite;
    background-size: 200% 200%;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-dim);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    color: var(--color-text-dim);
    font-size: 0.9rem;
    font-weight: 500;
}

.scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, var(--color-primary), transparent);
    animation: scroll-down 2s ease-in-out infinite;
}

@keyframes scroll-down {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(20px); opacity: 0.3; }
}

/* ===== ANIMATIONS ===== */
.fade-in {
    animation: fadeIn 1s ease forwards;
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards;
}

.fade-in-up.delay-1 {
    animation-delay: 0.2s;
}

.fade-in-up.delay-2 {
    animation-delay: 0.4s;
}

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

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

/* ===== STATS SECTION ===== */
.stats {
    padding: var(--spacing-xl) 0;
    position: relative;
    z-index: 1;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    transition: all var(--transition-medium);
    opacity: 0;
    transform: translateY(50px);
}

.stat-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-primary);
    transform: translateY(-10px);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: 1.1rem;
    color: var(--color-text-dim);
    font-weight: 500;
}

/* ===== SECTION STYLES ===== */
section {
    padding: var(--spacing-xl) 0;
    position: relative;
    z-index: 1;
}

.section-header {
    margin-bottom: var(--spacing-lg);
}

.section-header.centered {
    text-align: center;
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid var(--color-secondary);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.section-title.centered {
    text-align: center;
}

.section-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-dim);
    line-height: 1.8;
    max-width: 800px;
}

.section-subtitle.centered {
    margin: 0 auto;
    text-align: center;
}

/* ===== PHILOSOPHY SECTION ===== */
.philosophy {
    padding: var(--spacing-xl) 0;
}

.philosophy-content {
    max-width: 900px;
    margin: 0 auto;
}

.philosophy-text {
    font-size: 1.25rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-dim);
}

.philosophy-text.large {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

.concept-card {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border: 1px solid var(--color-primary);
    border-radius: 20px;
    text-align: center;
}

.concept-label {
    display: block;
    font-size: 0.9rem;
    color: var(--color-text-dim);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.concept-title {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== VALUE PROPOSITION ===== */
.value-prop {
    padding: var(--spacing-xl) 0;
    text-align: center;
}

/* ===== COMMITMENTS SECTION ===== */
.commitments {
    padding: var(--spacing-xl) 0;
}

.commitment-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    margin-bottom: var(--spacing-xl);
    opacity: 0;
    transform: translateY(50px);
    transition: all var(--transition-slow);
}

.commitment-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.commitment-item.reverse {
    direction: rtl;
}

.commitment-item.reverse > * {
    direction: ltr;
}

.commitment-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid var(--color-accent);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.commitment-content {
    position: relative;
    z-index: 10;
}

.commitment-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.commitment-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-dim);
    margin-bottom: var(--spacing-md);
}

.commitment-visual {
    position: relative;
    height: 400px;
    z-index: 1;
}

.visual-card {
    width: 100%;
    height: 100%;
    border-radius: 20px;
    position: relative;
    overflow: hidden;
    background: radial-gradient(circle at center, rgba(99, 102, 241, 0.1), rgba(10, 10, 15, 0.8));
    border: 1px solid var(--color-border);
}

.visual-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    animation: pulse 3s ease-in-out infinite;
    z-index: 1;
    pointer-events: none;
}

.card-canvas {
    width: 100% !important;
    height: 100% !important;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
    pointer-events: none;
}

.visual-card.card-1 {
    background: radial-gradient(circle at center, rgba(99, 102, 241, 0.15), rgba(10, 10, 15, 0.9));
}

.visual-card.card-1::before {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
}

.visual-card.card-2 {
    background: radial-gradient(circle at center, rgba(6, 182, 212, 0.15), rgba(10, 10, 15, 0.9));
}

.visual-card.card-2::before {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(99, 102, 241, 0.1));
    animation-delay: 1s;
}

.visual-card.card-3 {
    background: radial-gradient(circle at center, rgba(236, 72, 153, 0.15), rgba(10, 10, 15, 0.9));
}

.visual-card.card-3::before {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.1), rgba(139, 92, 246, 0.1));
    animation-delay: 2s;
}

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

/* ===== COMPARISON SECTION ===== */
.comparison {
    padding: var(--spacing-xl) 0;
    background: rgba(255, 255, 255, 0.02);
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.comparison-column {
    padding: var(--spacing-lg);
    border-radius: 20px;
    border: 2px solid var(--color-border);
    transition: all var(--transition-medium);
    opacity: 0;
    transform: translateY(50px);
}

.comparison-column.visible {
    opacity: 1;
    transform: translateY(0);
}

.comparison-column.us {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(139, 92, 246, 0.05));
    border-color: var(--color-primary);
}

.comparison-column.us:hover {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    transform: translateY(-10px);
}

.comparison-column.them {
    background: rgba(255, 255, 255, 0.02);
}

.comparison-column.them:hover {
    background: rgba(255, 255, 255, 0.04);
}

.comparison-header {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-border);
}

.comparison-item {
    margin-bottom: var(--spacing-lg);
}

.comparison-item:last-child {
    margin-bottom: 0;
}

.comparison-item h5 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.comparison-item p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-dim);
}

/* ===== PARTNERSHIPS SECTION ===== */
.partnerships {
    padding: var(--spacing-xl) 0;
}

.partnerships-intro {
    font-size: 1.1rem;
    color: var(--color-text-dim);
    line-height: 1.8;
    margin-top: var(--spacing-md);
}

.partnerships-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.partnership-card {
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    transition: all var(--transition-medium);
    opacity: 0;
    transform: translateY(50px);
}

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

.partnership-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-primary);
    transform: translateY(-10px);
}

.partnership-number {
    font-size: 3rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
}

.partnership-card h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.partnership-section {
    margin-bottom: var(--spacing-md);
}

.partnership-section h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.partnership-section p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-dim);
}

/* ===== CTA SECTION ===== */
.cta {
    padding: var(--spacing-xl) 0;
    text-align: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border-radius: 30px;
    margin: var(--spacing-xl) var(--spacing-md);
}

.cta-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.cta-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-dim);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

/* ===== FOOTER ===== */
.footer {
    padding: var(--spacing-xl) 0 var(--spacing-md);
    border-top: 1px solid var(--color-border);
    position: relative;
    z-index: 1;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-brand p {
    color: var(--color-text-dim);
    margin-top: var(--spacing-sm);
}

.footer-contact h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer-contact p {
    color: var(--color-text-dim);
    margin-bottom: var(--spacing-sm);
}

.footer-contact a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    text-align: center;
    color: var(--color-text-dim);
    font-size: 0.9rem;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .commitment-item,
    .comparison-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .commitment-visual {
        height: 300px;
    }
    
    .commitment-item.reverse {
        direction: ltr;
    }
    
    .commitment-content {
        background: rgba(10, 10, 15, 0.95);
        padding: var(--spacing-md);
        border-radius: 15px;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 4rem;
        --spacing-lg: 3rem;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: right var(--transition-medium);
        border-left: 1px solid var(--color-border);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .partnerships-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .cursor-follower {
        display: none;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
        --spacing-md: 1.5rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .partnership-number {
        font-size: 2rem;
    }
}

/* ===== UTILITY CLASSES ===== */
.text-center {
    text-align: center;
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

/* ===== SELECTION STYLING ===== */
::selection {
    background: var(--color-primary);
    color: var(--color-bg);
}

::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 5px;
}

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