@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@700;800;900&family=Inter:wght@400;500;600&display=swap');

:root {
    --bg:      #0c0a0f;
    --amber:   #f59e0b;
    --orange:  #ea580c;
    --rose:    #fb7185;
    --muted:   #9ca3af;
    --surface: rgba(245,158,11,0.06);
    --border:  rgba(245,158,11,0.14);
    --white:   #fef9f0;
}

* { box-sizing: border-box; }

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

/* ── Canvas ─────────────────────────────────────────────────────── */

#eq-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(12, 10, 15, 0.88);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 100;
}

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.45rem; font-weight: 900;
    letter-spacing: 3px; text-transform: uppercase;
    display: flex; align-items: center; gap: 8px;
}

.logo-sound { color: var(--white); }

.logo-bars {
    display: flex; align-items: flex-end; gap: 2px;
    height: 16px;
}

.logo-bars span {
    display: block; width: 3px;
    background: var(--amber);
    border-radius: 1px;
    animation: logoBar 1.1s ease-in-out infinite alternate;
}

.logo-bars span:nth-child(1) { height: 6px;  animation-delay: 0s; }
.logo-bars span:nth-child(2) { height: 14px; animation-delay: 0.15s; }
.logo-bars span:nth-child(3) { height: 10px; animation-delay: 0.3s; }
.logo-bars span:nth-child(4) { height: 16px; animation-delay: 0.1s; }

@keyframes logoBar {
    from { transform: scaleY(0.4); }
    to   { transform: scaleY(1); }
}

.logo-fare { color: var(--amber); }

.nav-link {
    font-weight: 700; font-size: 0.82rem;
    text-decoration: none;
    color: var(--bg);
    background: var(--amber);
    padding: 10px 22px; border-radius: 5px;
    letter-spacing: 1px; text-transform: uppercase;
    transition: opacity 0.2s, transform 0.2s;
    white-space: nowrap;
}

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

@media (max-width: 650px) {
    nav { padding: 14px 5%; }
    .logo { font-size: 1.05rem; letter-spacing: 2px; }
    .nav-link { padding: 8px 14px; font-size: 0.72rem; }
}

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

.hero {
    max-width: 1160px; margin: 0 auto;
    padding: 14vh 24px 6vh;
    text-align: center;
    position: relative; z-index: 1;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.76rem; font-weight: 600;
    letter-spacing: 3px; text-transform: uppercase;
    color: var(--amber);
    border: 1px solid rgba(245,158,11,0.3);
    padding: 6px 18px; border-radius: 20px;
    margin-bottom: 30px;
}

.brand-h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(2.4rem, 7vw, 5.8rem);
    font-weight: 900; line-height: 1.05;
    margin: 0 0 28px;
    letter-spacing: -1px;
    text-transform: uppercase;
}

.brand-h1 em {
    font-style: normal;
    background: linear-gradient(135deg, var(--amber) 0%, var(--orange) 50%, var(--rose) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    max-width: 700px; margin: 0 auto 64px;
    color: var(--muted);
    font-size: 1.12rem; line-height: 1.78;
}

@media (max-width: 480px) {
    .brand-h1 { font-size: 2.2rem; }
    .hero-tagline { font-size: 1rem; }
}

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

.grid {
    max-width: 1160px; margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    position: relative; z-index: 1;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 36px 30px;
    border-radius: 10px;
    text-align: left;
    transition: transform 0.28s, box-shadow 0.28s, border-color 0.28s;
    position: relative; overflow: hidden;
}

.card::after {
    content: '';
    position: absolute; bottom: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--amber), var(--orange), var(--rose));
    opacity: 0; transition: opacity 0.3s;
}

.card:hover {
    transform: translateY(-7px);
    box-shadow: 0 18px 40px rgba(245, 158, 11, 0.14);
    border-color: rgba(245,158,11,0.3);
}

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

.card-label {
    font-size: 0.72rem; font-weight: 700;
    letter-spacing: 2.5px; text-transform: uppercase;
    color: var(--amber); margin-bottom: 14px; display: block;
}

.card h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.1rem; font-weight: 800;
    margin: 0 0 12px; color: var(--white);
}

.card p {
    font-size: 0.93rem; line-height: 1.7;
    color: var(--muted); margin: 0;
}

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

.use-cases {
    max-width: 1160px; margin: 70px auto 0;
    padding: 0 24px;
    text-align: center;
    position: relative; z-index: 1;
}

.use-cases-title {
    font-size: 0.75rem; font-weight: 600;
    letter-spacing: 2.5px; text-transform: uppercase;
    color: var(--muted); margin-bottom: 20px;
}

.pills {
    display: flex; flex-wrap: wrap;
    gap: 10px; justify-content: center;
}

.pill {
    font-size: 0.85rem; font-weight: 500;
    color: var(--amber);
    background: rgba(245,158,11,0.07);
    border: 1px solid rgba(245,158,11,0.2);
    padding: 7px 18px; border-radius: 999px;
}

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

.signal-line {
    padding: 90px 20px 100px;
    text-align: center;
    position: relative; z-index: 1;
}

.signal-inner { max-width: 540px; margin: 0 auto; }

.signal-status {
    font-size: 0.76rem; font-weight: 600;
    letter-spacing: 3px; text-transform: uppercase;
    color: var(--amber); margin-bottom: 28px;
}

.signal-cta {
    display: inline-block;
    font-weight: 800; font-size: 0.9rem;
    text-decoration: none;
    background: linear-gradient(135deg, var(--amber), var(--orange));
    color: var(--bg);
    padding: 16px 42px; border-radius: 6px;
    letter-spacing: 1.5px; text-transform: uppercase;
    transition: opacity 0.2s, transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 0 30px rgba(245,158,11,0.3);
}

.signal-cta:hover {
    opacity: 0.88;
    transform: translateY(-2px);
    box-shadow: 0 0 50px rgba(245,158,11,0.48);
}

.signal-sub {
    margin-top: 20px;
    font-size: 0.85rem;
    color: var(--muted);
}