:root {
    --bg-dark: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.7);
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent: #8b5cf6;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --glass-border: rgba(255, 255, 255, 0.1);
    
    --font-sans: 'Outfit', sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Canvas */
#bubble-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    color: var(--text-main);
}

.text-link {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1rem 0;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    font-family: var(--font-display);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

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

.nav-btn-secondary {
    padding: 0.5rem 1rem;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
}

/* Glassmorphism utility */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 700;
    font-family: var(--font-display);
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.5);
}

.btn-windows {
    background: linear-gradient(135deg, #0078D7, #00a4ef);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 120, 215, 0.4);
}

.btn-windows:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 164, 239, 0.5);
}

/* Layout */
main {
    padding-top: 80px;
}

section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem 2rem;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    gap: 4rem;
    min-height: calc(100vh - 80px);
}

.hero-content {
    flex: 1;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    background: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.glitch-text {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

/* Visual Mockup */
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}

.floating-mockup {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px) rotate(2deg); }
    50% { transform: translateY(-20px) rotate(-1deg); }
    100% { transform: translateY(0px) rotate(2deg); }
}

.mockup-card {
    width: 320px;
    height: 500px;
    padding: 0;
    overflow: hidden;
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.9) 100%);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.mockup-header {
    padding: 1rem;
    display: flex;
    gap: 0.5rem;
    background: rgba(0, 0, 0, 0.2);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

.mockup-body {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: calc(100% - 44px);
    position: relative;
}

.game-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.element-bubble {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-family: var(--font-display);
    font-size: 1.2rem;
    box-shadow: inset -5px -5px 10px rgba(0,0,0,0.3), inset 5px 5px 10px rgba(255,255,255,0.4), 0 5px 15px rgba(0,0,0,0.3);
}

.element-bubble.h { background: radial-gradient(circle at 30% 30%, #ef4444, #991b1b); }
.element-bubble.o { background: radial-gradient(circle at 30% 30%, #3b82f6, #1e3a8a); }
.element-bubble.na { background: radial-gradient(circle at 30% 30%, #10b981, #065f46); }
.element-bubble.cl { background: radial-gradient(circle at 30% 30%, #f59e0b, #92400e); }
.element-bubble.c { background: radial-gradient(circle at 30% 30%, #8b5cf6, #4c1d95); }

.game-shooter {
    position: absolute;
    bottom: 20px;
    width: 60px;
    height: 60px;
    border: 3px dashed rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    transition: transform 0.3s, border-color 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(96, 165, 250, 0.5);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-muted);
}

/* Support Section */
.support {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin: 5rem auto;
}

.contact-methods {
    margin-top: 3rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-icon {
    font-size: 2rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem;
    border-radius: 12px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-main);
    font-family: var(--font-sans);
    transition: border-color 0.3s;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

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

/* Document Pages (Privacy Policy) */
.page-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.document-card {
    padding: 3rem;
}

.document-title {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.last-updated {
    color: var(--text-muted);
    margin-bottom: 3rem;
}

.document-content h2 {
    font-size: 1.5rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: #60a5fa;
}

.document-content p {
    margin-bottom: 1rem;
    color: #cbd5e1;
}

/* Footer */
footer {
    border-top: 1px solid var(--glass-border);
    background: rgba(15, 23, 42, 0.95);
    padding: 3rem 2rem;
    margin-top: auto;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-logo {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.25rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--text-main);
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 2rem;
    }
    
    .hero-subtitle {
        margin: 0 auto 2.5rem auto;
    }
    
    .support {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .glitch-text {
        font-size: 3rem;
    }

    .nav-links {
        display: none;
    }
}