:root {
    --bg: #0e0e10;
    --surface: #18181b;
    --border: #27272a;
    --text: #e4e4e7;
    --text-muted: #a1a1aa;
    --accent: #7c8aff;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { background: var(--bg); color: var(--text); }
body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Header / hero ── */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 4rem 1.5rem 3rem;
    text-align: center;
    background:
        radial-gradient(ellipse 60% 50% at 50% 0%, rgba(124,138,255,.08) 0%, transparent 100%),
        var(--bg);
}
.hero .logo { width: 80px; height: 80px; margin-bottom: 1.5rem; opacity: .9; }
.hero h1 { font-size: 1.75rem; font-weight: 600; letter-spacing: -.02em; }
.hero .tagline { color: var(--text-muted); margin-top: .5rem; font-size: 1.05rem; }

/* ── Nav bar ── */
.nav {
    display: flex;
    justify-content: center;
    gap: 2rem;
    padding: .75rem 1rem;
    border-bottom: 1px solid var(--border);
    font-size: .9rem;
}

/* ── Content area ── */
.content {
    max-width: 640px;
    width: 100%;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 3rem;
    flex: 1;
}
.content h2 {
    font-size: 1.15rem;
    font-weight: 600;
    margin: 2rem 0 .5rem;
    color: var(--text);
}
.content h2:first-child { margin-top: 0; }
.content p { color: var(--text-muted); margin-bottom: .75rem; }
.content ul { color: var(--text-muted); margin: .25rem 0 .75rem 1.25rem; }
.content li { margin-bottom: .25rem; }
.content strong { color: var(--text); font-weight: 500; }

/* ── Cards (homepage) ── */
.cards {
    display: grid;
    gap: 1rem;
    margin: 1.5rem 0;
}
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: .5rem;
    padding: 1.25rem 1.5rem;
}
.card h3 { font-size: 1rem; font-weight: 600; margin-bottom: .35rem; }
.card p { font-size: .9rem; margin: 0; }

/* ── Footer ── */
footer {
    border-top: 1px solid var(--border);
    text-align: center;
    padding: 1.5rem 1rem;
    font-size: .8rem;
    color: var(--text-muted);
}
footer a { color: var(--text-muted); }
footer a:hover { color: var(--accent); }