:root {
    --primary: #2563EB;
    --primary-light: #3B82F6;
    --primary-dark: #1D4ED8;
    --primary-glow: rgba(37, 99, 235, 0.3);
    --secondary: #1E40AF;
    --accent: #06B6D4;
    --accent-2: #8B5CF6;
    --bg-dark: #0B0F1A;
    --bg-card: #111827;
    --bg-card-hover: #1a2332;
    --bg-surface: #1F2937;
    --bg-glass: rgba(17, 24, 39, 0.7);
    --bg-glass-light: rgba(31, 41, 55, 0.5);
    --text-primary: #F9FAFB;
    --text-secondary: #9CA3AF;
    --text-muted: #6B7280;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(37, 99, 235, 0.3);
    --gradient-primary: linear-gradient(135deg, var(--primary), var(--accent));
    --gradient-hero: linear-gradient(135deg, #0B0F1A 0%, #111827 50%, #0B0F1A 100%);
    --gradient-card: linear-gradient(145deg, rgba(17, 24, 39, 0.9), rgba(11, 15, 26, 0.9));
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 30px var(--primary-glow);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { font-family: var(--font-main); background-color: var(--bg-dark); color: var(--text-primary); line-height: 1.7; font-size: 16px; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; position: relative; }

#preloader { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: var(--bg-dark); z-index: 99999; display: flex; align-items: center; justify-content: center; transition: opacity 0.5s, visibility 0.5s; }
#preloader.hidden { opacity: 0; visibility: hidden; }
.loader { text-align: center; }
.loader-hex { width: 60px; height: 60px; margin: 0 auto 16px; position: relative; }
.loader-hex::before { content: ''; position: absolute; width: 100%; height: 100%; background: var(--gradient-primary); clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%); animation: loaderPulse 1.5s ease-in-out infinite; }
.loader-text { font-family: var(--font-mono); font-size: 14px; font-weight: 600; letter-spacing: 4px; color: var(--primary-light); }
@keyframes loaderPulse { 0%, 100% { transform: scale(1); opacity: 1; } 50% { transform: scale(0.8); opacity: 0.5; } }

.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 16px 0; transition: var(--transition); background: transparent; }
.navbar.scrolled { background: var(--bg-glass); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--border-color); padding: 10px 0; }
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: 10px; color: var(--text-primary); font-weight: 700; font-size: 20px; text-decoration: none; }
.nav-logo:hover { color: var(--text-primary); }
.logo-icon svg { width: 36px; height: 36px; }
.logo-text { font-weight: 800; font-size: 18px; letter-spacing: -0.5px; }
.nav-menu { display: flex; align-items: center; gap: 8px; }
.nav-link { color: var(--text-secondary); font-size: 14px; font-weight: 500; padding: 8px 16px; border-radius: var(--radius-sm); transition: var(--transition); text-decoration: none; }
.nav-link:hover, .nav-link.active { color: var(--text-primary); background: var(--bg-glass-light); }
.nav-cta { background: var(--gradient-primary) !important; color: white !important; padding: 10px 20px !important; border-radius: var(--radius-md) !important; }
.nav-cta:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 5px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: var(--transition); }
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translateY(7px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translateY(-7px); }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: var(--radius-md); font-weight: 600; font-size: 14px; cursor: pointer; border: none; transition: var(--transition); text-decoration: none; line-height: 1.5; }
.btn-primary { background: var(--gradient-primary); color: white; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow); color: white; }
.btn-outline { background: transparent; color: var(--text-primary); border: 1px solid var(--border-color); }
.btn-outline:hover { background: var(--bg-glass-light); border-color: var(--primary); color: var(--text-primary); }
.btn-white { background: white; color: var(--bg-dark); }
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); color: var(--bg-dark); }
.btn-outline-white { background: transparent; color: white; border: 1px solid rgba(255,255,255,0.3); }
.btn-outline-white:hover { background: rgba(255,255,255,0.1); color: white; }
.btn-lg { padding: 14px 36px; font-size: 16px; }
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-block { width: 100%; justify-content: center; }

.gradient-text { background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-tag { display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; background: rgba(37, 99, 235, 0.1); border: 1px solid rgba(37, 99, 235, 0.2); border-radius: 50px; color: var(--primary-light); font-size: 13px; font-weight: 600; margin-bottom: 16px; letter-spacing: 0.5px; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-title { font-size: 40px; font-weight: 800; line-height: 1.2; margin-bottom: 16px; letter-spacing: -1px; }
.section-desc { color: var(--text-secondary); font-size: 17px; max-width: 600px; margin: 0 auto; }
.section-action { text-align: center; margin-top: 48px; }