@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@700;900&family=Roboto:wght@400;500&display=swap');

:root {
    --bg: #0f0f0f;
    --white: #ffffff;
    --gray: #b0b0b0;
    --cyan: #00bfff;
    --gold: #ffd700;
}

* { box-sizing: border-box; }

body, html {
    margin: 0; padding: 0;
    font-family: 'Roboto', sans-serif;
    background-color: var(--bg);
    color: var(--white);
    overflow-x: hidden;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* ── Animated background canvas ────────────────────────────────── */

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

/* ── Nav ────────────────────────────────────────────────────────── */

nav {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px 8%;
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(10px);
    position: sticky; top: 0; z-index: 100;
}

.logo {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700; letter-spacing: 4px; font-size: 1.3rem;
    background: -webkit-linear-gradient(var(--cyan), var(--gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-link {
    color: var(--cyan); text-decoration: none; font-size: 0.75rem; font-weight: 500;
    text-transform: uppercase; letter-spacing: 2px;
    border: 2px solid var(--cyan);
    padding: 10px 24px;
    transition: background 0.3s ease, color 0.3s ease;
    white-space: nowrap;
}

.nav-link:hover { background: var(--cyan); color: var(--bg); }

@media (max-width: 650px) {
    nav { padding: 18px 5%; }
    .logo { font-size: 1.05rem; letter-spacing: 2px; }
    .nav-link { padding: 8px 14px; font-size: 0.65rem; letter-spacing: 1px; }
}

/* ── Hero ───────────────────────────────────────────────────────── */

.hero {
    max-width: 1100px; margin: 0 auto; padding: 10vh 20px 6vh;
    text-align: center;
    position: relative; z-index: 1;
}

.brand-h1 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 900; margin: 0;
    font-size: clamp(2rem, 6vw, 4.5rem);
    line-height: 1.05;
    color: var(--white);
}

.hero-tagline {
    font-size: 1.05rem; color: var(--gray);
    margin: 24px auto 0; max-width: 620px;
    line-height: 1.6;
}

@media (max-width: 600px) {
    .brand-h1 { font-size: 2rem; }
}

/* ── Cards ──────────────────────────────────────────────────────── */

.grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px; margin-top: 60px; text-align: left;
}

.card {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 35px;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.card:hover { transform: translateY(-10px); }

.card label {
    color: var(--gray); font-size: 0.75rem;
    letter-spacing: 2px; text-transform: uppercase;
}

.card h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 20px; margin: 10px 0;
    color: var(--white);
}

.card p { font-size: 0.95rem; line-height: 1.6; color: var(--gray); margin: 0; }

@media (max-width: 600px) {
    .card { padding: 22px; }
}

/* ── Signal Line ────────────────────────────────────────────────── */

.signal-line {
    padding: 30px 20px 80px;
    text-align: center;
    position: relative; z-index: 1;
}

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

.signal-status {
    font-size: 0.85rem; letter-spacing: 4px;
    text-transform: uppercase; color: var(--gray);
    margin-bottom: 26px;
}

.signal-cta {
    display: inline-block;
    color: var(--gold); text-decoration: none;
    font-weight: 700; letter-spacing: 3px; text-transform: uppercase;
    font-size: 0.9rem; border: 2px solid var(--gold);
    padding: 14px 36px;
    transition: background 0.3s ease, color 0.3s ease;
}

.signal-cta:hover { background: var(--gold); color: var(--bg); }

.signal-sub {
    margin-top: 20px; font-size: 0.8rem; letter-spacing: 1px;
    color: var(--gray); opacity: 0.8;
}