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

:root {
    --bg:       #070b1a;
    --violet:   #7c3aed;
    --cyan:     #06b6d4;
    --indigo:   #818cf8;
    --muted:    #94a3b8;
    --surface:  rgba(124, 58, 237, 0.07);
    --border:   rgba(124, 58, 237, 0.15);
    --white:    #f0f4ff;
}

* { 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 ---- */

#sync-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%;
    position: sticky; top: 0; z-index: 100;
    background: rgba(7, 11, 26, 0.88);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.45rem; font-weight: 800;
    display: flex; align-items: center; gap: 2px;
    letter-spacing: -0.5px;
}

.logo-meso { color: var(--indigo); }
.logo-dot  {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--cyan);
    margin: 0 3px;
    animation: pulse 2s ease-in-out infinite;
    flex-shrink: 0;
}
.logo-sync { color: var(--cyan); }

@keyframes pulse {
    0%, 100% { transform: scale(1);   opacity: 1; }
    50%       { transform: scale(1.6); opacity: 0.5; }
}

.nav-link {
    font-weight: 600; font-size: 0.88rem;
    text-decoration: none;
    color: var(--white);
    background: linear-gradient(135deg, var(--violet), var(--cyan));
    padding: 10px 22px; border-radius: 6px;
    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: 1.1rem; }
    .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: 1;
}

.hero-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 0.78rem; font-weight: 600;
    letter-spacing: 2.5px; text-transform: uppercase;
    color: var(--cyan);
    border: 1px solid rgba(6, 182, 212, 0.25);
    padding: 6px 18px; border-radius: 20px;
    margin-bottom: 30px;
}

.hero-eyebrow::before {
    content: '';
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--cyan);
    animation: pulse 2s ease-in-out infinite;
}

.brand-h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(2.2rem, 6vw, 4.8rem);
    font-weight: 900; line-height: 1.08;
    margin: 0 0 28px;
    letter-spacing: -1px;
}

.brand-h1 em {
    font-style: normal;
    background: linear-gradient(135deg, var(--indigo), var(--cyan));
    -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: 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: 12px;
    text-align: left;
    transition: transform 0.28s, box-shadow 0.28s, border-color 0.28s;
    position: relative; overflow: hidden;
}

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

.card:hover {
    transform: translateY(-7px);
    box-shadow: 0 18px 42px rgba(124, 58, 237, 0.18);
    border-color: rgba(124, 58, 237, 0.35);
}

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

.card-label {
    font-size: 0.72rem; font-weight: 600;
    letter-spacing: 2px; text-transform: uppercase;
    color: var(--indigo);
    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(--indigo);
    background: rgba(129, 140, 248, 0.07);
    border: 1px solid rgba(129, 140, 248, 0.2);
    padding: 7px 18px; border-radius: 999px;
}

/* ---- CTA ---- */

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

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

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

.signal-cta {
    display: inline-block;
    font-weight: 700; font-size: 0.95rem;
    text-decoration: none;
    background: linear-gradient(135deg, var(--violet), var(--cyan));
    color: var(--white);
    padding: 16px 42px; border-radius: 8px;
    letter-spacing: 0.3px;
    transition: opacity 0.2s, transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 0 32px rgba(124, 58, 237, 0.35);
}

.signal-cta:hover {
    opacity: 0.88;
    transform: translateY(-2px);
    box-shadow: 0 0 52px rgba(124, 58, 237, 0.52);
}

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