@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;700&family=JetBrains+Mono:wght@500&display=swap');

:root {
    --bg: #ffffff;
    --text: #1e293b;
    --accent: #8b5cf6;
    --border: #e2e8f0;
}

body, html {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Space Grotesk', sans-serif;
    overflow-x: hidden;
}

#canvas {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 0;
    pointer-events: none;
}

nav {
    padding: 25px 6%;
    display: flex; justify-content: space-between; align-items: center;
    position: relative; z-index: 100;
    border-bottom: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
}

.logo {
    font-weight: 700; font-size: 1.5rem;
    letter-spacing: -1px; text-transform: uppercase;
}
.logo span { color: var(--accent); }

.nav-cta {
    text-decoration: none; color: white;
    font-size: 0.75rem; font-weight: 700;
    padding: 10px 24px; background: var(--text);
    border-radius: 2px;
    text-transform: uppercase; letter-spacing: 1px;
    transition: 0.3s;
}
.nav-cta:hover { background: var(--accent); transform: translateY(-1px); }

.hero {
    padding: 60px 6% 70px 6%;
    position: relative; z-index: 1;
    max-width: 850px;
}

.status-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem; color: var(--accent);
    background: rgba(139, 92, 246, 0.1);
    padding: 5px 12px; border-radius: 4px;
    margin-bottom: 20px; display: inline-block;
}

h1 {
    font-size: clamp(3.5rem, 10vw, 6.5rem);
    font-weight: 700; line-height: 0.95;
    margin: 0; letter-spacing: -3px;
}

.hero-p {
    margin-top: 30px; font-size: 1.2rem;
    color: #64748b; max-width: 500px;
    line-height: 1.5; font-weight: 300;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1px; background: var(--border);
    position: relative; z-index: 1;
    border-top: 1px solid var(--border);
}

.card {
    background: white;
    border-radius: 0;
    padding: 50px 40px;
    transition: 0.3s ease;
}
.card:hover { background: #fafafa; }

.card-code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem; color: #cbd5e1;
    margin-bottom: 20px; display: block;
}

h3 { font-size: 1.6rem; font-weight: 700; margin-bottom: 12px; color: var(--text); }
p { color: #64748b; font-size: 0.95rem; line-height: 1.6; margin: 0; }

/* ── Signal Line ─────────────────────────────────── */
.signal-line {
    padding: 60px 6% 80px;
    text-align: center;
    position: relative;
    z-index: 1;
    background: #fff;
}

.signal-inner {
    max-width: 600px;
    margin: 0 auto;
}

.signal-status {
    font-size: 0.7rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 700;
    opacity: 0.9;
    margin-bottom: 30px;
}

.signal-cta {
    display: inline-block;
    color: white;
    background: var(--text);
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.75rem;
    padding: 10px 24px;
    border-radius: 2px;
    transition: 0.3s;
}

.signal-cta:hover {
    background: var(--accent);
    transform: translateY(-1px);
}

.signal-sub {
    margin-top: 20px;
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--muted);
}

footer {
    padding: 20px 6%;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem; color: #94a3b8;
    position: relative; z-index: 1;
    background: white;
    border-top: 1px solid var(--border);
}

footer div { margin-bottom: 6px; }

@media (max-width: 768px) {
    .card { padding: 32px 26px; }
}

@media (max-width: 480px) {
    .card { padding: 24px 18px; }
}