:root {
    /* Blue-Green Gradient Color Palette */
    --bg-primary: #000000;
    --bg-secondary: #0a0f0f;
    --bg-tertiary: #0f1a1a;
    --text-primary: #ffffff;
    --text-secondary: #b8d4d4;
    --text-tertiary: #88aaaa;
    
    /* Blue-Green Accents */
    --accent-primary: #00d9ff;
    --accent-secondary: #00ffa3;
    --accent-tertiary: #00cc88;
    --accent-gradient: linear-gradient(135deg, #00d9ff 0%, #00ffa3 50%, #00cc88 100%);
    --accent-glow: 0 0 30px rgba(0, 217, 255, 0.5), 0 0 60px rgba(0, 255, 163, 0.3);
    --neon-blue: #00d9ff;
    --neon-green: #00ffa3;
    --neon-teal: #00cc88;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Typography */
    --font-main: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    
    /* UI Elements */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    
    --transition-fast: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-smooth: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.5;
    overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition-fast); }
ul { list-style: none; }

/* Typography */
h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; }
h1 { font-size: clamp(3rem, 8vw, 6rem); }
h2 { font-size: clamp(2rem, 5vw, 3.5rem); margin-bottom: var(--spacing-sm); }
h3 { font-size: 1.4rem; margin-bottom: var(--spacing-xs); }
p { color: var(--text-secondary); font-size: 1.1rem; font-weight: 400; }

.text-center { text-align: center; }
.text-gradient {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

/* Layout */
.container { width: 90%; max-width: 1200px; margin: 0 auto; padding: 0 var(--spacing-sm); }
.section-padding { padding: var(--spacing-xl) 0; }
.bg-secondary { background-color: var(--bg-secondary); }

/* Navbar */
.navbar {
    position: fixed; top: 0; left: 0; width: 100%;
    z-index: 1000; padding: var(--spacing-sm) 0;
    transition: var(--transition-fast);
}
.glass-effect {
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 217, 255, 0.2);
}
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-weight: 700; font-size: 1.25rem; letter-spacing: -0.01em; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 0.8rem 1.6rem; border-radius: 999px;
    font-weight: 500; font-size: 1rem; cursor: pointer;
    border: none; transition: var(--transition-fast);
}
.btn-sm { padding: 0.5rem 1rem; font-size: 0.875rem; }
.btn-large { padding: 1.2rem 2.4rem; font-size: 1.2rem; }
.btn-primary { 
    background: var(--accent-gradient); 
    color: #000; 
    font-weight: 600;
}
.btn-primary:hover { 
    box-shadow: var(--accent-glow); 
    transform: scale(1.02); 
}
.btn-outline {
    background: transparent;
    border: 1px solid rgba(0, 217, 255, 0.5);
    color: var(--neon-blue);
}
.btn-outline:hover {
    background: rgba(0, 217, 255, 0.1);
    border-color: var(--neon-blue);
    box-shadow: 0 0 15px rgba(0, 217, 255, 0.3);
}

/* Footer */
.footer { 
    border-top: 1px solid rgba(0, 217, 255, 0.2); 
    padding: var(--spacing-lg) 0; 
}
.footer-content { display: flex; flex-direction: column; gap: var(--spacing-lg); }
@media (min-width: 768px) { 
    .footer-content { flex-direction: row; justify-content: space-between; } 
}
.footer-brand h3 { color: var(--neon-blue); margin-bottom: 0.5rem; }
.footer-brand p { font-size: 0.9rem; }
.footer-links { display: flex; gap: var(--spacing-lg); flex-wrap: wrap; }
.link-group { display: flex; flex-direction: column; gap: 0.5rem; }
.link-group h4 { 
    font-size: 0.9rem; 
    text-transform: uppercase; 
    color: var(--neon-green); 
    margin-bottom: 0.5rem; 
}
.link-group a { color: var(--text-secondary); }
.link-group a:hover { color: var(--neon-green); }

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.fade-in-up { opacity: 0; animation: fadeInUp 0.8s var(--transition-smooth) forwards; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

.scroll-reveal { opacity: 0; transform: translateY(30px); transition: all 0.8s var(--transition-smooth); }
.scroll-reveal.active { opacity: 1; transform: translateY(0); }

@media (max-width: 768px) {
    .section-padding { padding: 4rem 0; }
}