@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700;900&family=Inter:wght@400;500;600&display=swap');

:root {
    --deep:      #050e1c;
    --ocean:     #0077B6;
    --current:   #00B4D8;
    --foam:      #90E0EF;
    --mist:      rgba(0, 180, 216, 0.08);
    --white:     #FFFFFF;
    --grey:      #8BA5B8;
}

* { box-sizing: border-box; }

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

/* ── Animated ocean background ──────────────────────────────────── */

#ocean-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(5, 14, 28, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 180, 216, 0.12);
    position: sticky; top: 0; z-index: 100;
}

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem; font-weight: 700;
    color: var(--white);
    text-transform: lowercase;
    letter-spacing: 0.5px;
    display: flex; align-items: center; gap: 10px;
}

.logo-drop {
    width: 28px; height: 28px;
    background: radial-gradient(circle at 35% 35%, var(--foam), var(--ocean));
    border-radius: 50% 50% 50% 0;
    transform: rotate(-45deg);
    flex-shrink: 0;
}

.nav-link {
    font-weight: 600; font-size: 0.9rem;
    text-decoration: none;
    background: linear-gradient(135deg, var(--ocean), var(--current));
    color: var(--white);
    padding: 10px 22px;
    border-radius: 6px;
    white-space: nowrap;
    transition: opacity 0.2s, transform 0.2s;
}

.nav-link:hover { opacity: 0.85; transform: translateY(-1px); }

@media (max-width: 650px) {
    nav { padding: 14px 5%; }
    .logo { font-size: 1.15rem; }
    .nav-link { padding: 8px 14px; font-size: 0.8rem; }
}

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

.hero {
    max-width: 1160px; margin: 0 auto;
    padding: 14vh 24px 6vh;
    text-align: center;
    position: relative; z-index: 10;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.78rem; font-weight: 600;
    letter-spacing: 3px; text-transform: uppercase;
    color: var(--current);
    border: 1px solid rgba(0, 180, 216, 0.3);
    padding: 6px 16px; border-radius: 20px;
    margin-bottom: 28px;
}

.brand-h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(2.2rem, 6vw, 4.8rem);
    font-weight: 900; line-height: 1.1;
    margin: 0 0 28px;
    background: linear-gradient(160deg, #ffffff 0%, var(--foam) 60%, var(--current) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    max-width: 700px; margin: 0 auto 60px;
    color: var(--grey);
    font-size: 1.15rem; line-height: 1.7;
}

@media (max-width: 480px) {
    .brand-h1 { font-size: 1.9rem; }
    .hero-tagline { font-size: 1rem; }
}

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

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-top: 10px;
}

.card {
    background: rgba(0, 119, 182, 0.06);
    border: 1px solid rgba(0, 180, 216, 0.14);
    padding: 36px 32px;
    border-radius: 12px;
    text-align: left;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s;
    position: relative; overflow: hidden;
}

.card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--current), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 119, 182, 0.2);
    border-color: rgba(0, 180, 216, 0.35);
}

.card:hover::before { opacity: 1; }

.card-icon {
    font-size: 1.8rem; margin-bottom: 16px;
    display: block;
}

.card-label {
    font-weight: 600; font-size: 0.72rem;
    letter-spacing: 2.5px; text-transform: uppercase;
    color: var(--current);
    margin-bottom: 12px;
}

.card h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.15rem; font-weight: 700;
    margin: 0 0 12px;
    color: var(--white);
}

.card p {
    font-size: 0.95rem; line-height: 1.65;
    color: var(--grey);
    margin: 0;
}

@media (max-width: 600px) {
    .card { padding: 28px 22px; }
}

/* ── Use cases section ───────────────────────────────────────────── */

.use-cases {
    max-width: 1160px; margin: 80px auto 0;
    padding: 0 24px;
    text-align: center;
    position: relative; z-index: 10;
}

.use-cases-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.78rem; font-weight: 600;
    letter-spacing: 3px; text-transform: uppercase;
    color: var(--grey);
    margin-bottom: 24px;
}

.use-cases-pills {
    display: flex; flex-wrap: wrap;
    gap: 12px; justify-content: center;
}

.pill {
    font-size: 0.88rem; font-weight: 500;
    color: var(--foam);
    background: rgba(0, 180, 216, 0.08);
    border: 1px solid rgba(0, 180, 216, 0.2);
    padding: 8px 20px; border-radius: 999px;
}

/* ── Signal / CTA ────────────────────────────────────────────────── */

.signal-line {
    padding: 90px 20px 100px;
    text-align: center;
    position: relative; z-index: 10;
}

.signal-inner {
    max-width: 560px; margin: 0 auto;
}

.signal-price {
    font-family: 'Montserrat', sans-serif;
    font-size: 3rem; font-weight: 900;
    color: var(--white);
    margin-bottom: 6px;
    background: linear-gradient(135deg, var(--white), var(--foam));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.signal-price-label {
    font-size: 0.8rem; letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--grey);
    margin-bottom: 36px;
}

.signal-status {
    font-size: 0.78rem; font-weight: 600;
    letter-spacing: 3px; text-transform: uppercase;
    color: var(--current);
    margin-bottom: 28px;
}

.signal-cta {
    display: inline-block;
    font-weight: 700; font-size: 1rem;
    text-decoration: none;
    background: linear-gradient(135deg, var(--ocean), var(--current));
    color: var(--white);
    padding: 16px 40px;
    border-radius: 8px;
    letter-spacing: 0.5px;
    transition: opacity 0.2s, transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 8px 24px rgba(0, 119, 182, 0.35);
}

.signal-cta:hover {
    opacity: 0.9;
    transform: translateY(-3px);
    box-shadow: 0 14px 32px rgba(0, 119, 182, 0.5);
}

.signal-sub {
    margin-top: 22px;
    font-size: 0.85rem;
    color: var(--grey);
}