:root {
    /* Colors */
    --bg-space: #050505;
    --bg-panel: rgba(15, 23, 42, 0.6);
    --primary-blue: #0F172A;
    --neon-cyan: #06B6D4;
    --neon-purple: #8B5CF6;
    --text-main: #F8FAFC;
    --text-muted: #94A3B8;
    
    /* Effects */
    --glass-blur: blur(16px);
    --glass-border: 1px solid rgba(255, 255, 255, 0.1);
    --glow-cyan: 0 0 20px rgba(6, 182, 212, 0.3);
    --glow-purple: 0 0 20px rgba(139, 92, 246, 0.3);
    
    /* Fonts */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

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

body {
    background-color: var(--bg-space);
    color: var(--text-main);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

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

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--neon-cyan) 0%, #fff 50%, var(--neon-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

/* Layout Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0;
    position: relative;
}

/* Glassmorphism */
.glass-panel {
    background: var(--bg-panel);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    border-radius: 1rem;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 0.95rem;
}

.btn-primary {
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple));
    color: white;
    box-shadow: var(--glow-cyan);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(6, 182, 212, 0.5);
}

/* FAB Styles */
.fab-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    z-index: 100;
}

.fab {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    transition: transform 0.3s;
    position: relative;
}

.fab:hover {
    transform: scale(1.1);
}

.fab.whatsapp {
    background: #25D366;
    animation: pulse 2s infinite;
}

.fab.call {
    background: #007AFF;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }
    
    h1 {
        font-size: 2.5rem;
    }
}