:root {
    --navy: #0a0f1e;
    --navy-mid: #0d1530;
    --navy-card: #111a35;
    --navy-line: #1c2a50;
    --accent: #2563eb;
    --accent-lt: #3b82f6;
    --accent-glow: #1d4ed8;
    --teal: #06b6d4;
    --text: #e2e8f0;
    --text-muted: #7b92b8;
    --mono: 'Space Mono', monospace;
    --sans: 'DM Sans', sans-serif;
    --radius: 12px;
    --nav-h: 72px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--navy);
    color: var(--text);
    font-family: var(--sans), sans-serif;
    font-size: 16px;
    line-height: 1.7;
    overflow-x: hidden;
}

::selection {
    background: var(--accent);
    color: #fff;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: radial-gradient(ellipse 80% 60% at 10% 0%, rgba(37, 99, 235, 0.18) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 90% 100%, rgba(6, 182, 212, 0.10) 0%, transparent 55%),
    radial-gradient(ellipse 50% 70% at 80% 10%, rgba(29, 78, 216, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse 90% 40% at 50% 50%, rgba(15, 23, 42, 0.0) 0%, transparent 100%);
    pointer-events: none;
    z-index: 0;
}

section, nav, footer {
    position: relative;
    z-index: 1;
}

h1, h2, h3, h4 {
    font-family: var(--mono), sans-serif;
    letter-spacing: -0.02em;
}