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

:root {
    --bg-deep: #071826;
    --bg-deep-2: #0b2436;
    --blue: #2563eb;
    --blue-light: #38bdf8;
    --teal: #14b8a6;
    --teal-deep: #0c7a6b;
    --ink: #f3f8fb;
    --muted: #a9c2cf;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.10);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-deep);
    color: var(--ink);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    position: relative;
}

h1, h2, h3, .logo {
    font-family: 'Space Grotesk', sans-serif;
}

a { color: inherit; text-decoration: none; }

/* ---- Background animation canvas ---- */

#bg-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    display: block;
    background:
        radial-gradient(circle at 15% 20%, rgba(37, 99, 235, 0.18), transparent 55%),
        radial-gradient(circle at 85% 75%, rgba(20, 184, 166, 0.16), transparent 55%),
        linear-gradient(160deg, var(--bg-deep) 0%, var(--bg-deep-2) 100%);
}

/* ---- Nav ---- */

nav {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-sizing: border-box;
    background: rgba(7, 24, 38, 0.35);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    padding: 22px 0;
    transition: background 250ms ease, padding 250ms ease, box-shadow 250ms ease;
}

nav .nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: padding 250ms ease;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--ink);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: font-size 250ms ease;
}

.logo .dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--blue-light), var(--teal));
    display: inline-block;
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.7);
}

.logo span.accent {
    background: linear-gradient(135deg, var(--blue-light), var(--teal));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-link {
    display: inline-block;
    padding: 11px 24px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--blue), var(--teal-deep));
    color: #ffffff;
    font-weight: 600;
    font-size: 0.92rem;
    letter-spacing: 0.01em;
    transition: transform 250ms ease, box-shadow 250ms ease, padding 250ms ease, font-size 250ms ease;
    box-shadow: 0 4px 18px rgba(12, 122, 107, 0.3);
}

.nav-link:hover,
.nav-link:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(12, 122, 107, 0.45);
}

.nav-link:focus-visible {
    outline: 2px solid var(--blue-light);
    outline-offset: 3px;
}

nav.nav-scrolled {
    padding: 12px 0;
    background: rgba(7, 24, 38, 0.82);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
}

nav.nav-scrolled .logo {
    font-size: 1.15rem;
}

nav.nav-scrolled .nav-link {
    padding: 8px 18px;
    font-size: 0.85rem;
}

@media (prefers-reduced-motion: reduce) {
    nav, nav .nav-inner, .logo, .nav-link {
        transition: none;
    }
}

/* ---- Hero ---- */

.hero {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
    padding: 14vh 32px 10vh;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2rem, 6vw, 5rem);
    line-height: 1.1;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--ink) 35%, var(--blue-light) 70%, var(--teal) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero p {
    margin: 28px auto 0;
    max-width: 680px;
    font-size: 1.15rem;
    line-height: 1.7;
    color: var(--muted);
}

.hero-domain {
    margin-top: 22px;
    display: inline-block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1rem;
    letter-spacing: 0.04em;
    color: var(--blue-light);
    padding: 8px 18px;
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.07);
}

/* ---- Cards ---- */

.cards-section {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 4vh 32px 12vh;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 18px;
    padding: 38px 35px;
    transition: transform 280ms ease, box-shadow 280ms ease, border-color 280ms ease, background 280ms ease;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(8, 30, 48, 0.45);
    border-color: rgba(56, 189, 248, 0.35);
    background: rgba(255, 255, 255, 0.08);
}

.card .icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--blue), var(--teal-deep));
    margin-bottom: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: #ffffff;
}

.card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 14px;
    color: var(--ink);
}

.card p {
    font-size: 0.98rem;
    line-height: 1.65;
    color: var(--muted);
}

@media (prefers-reduced-motion: reduce) {
    .card { transition: none; }
}

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

.cta {
    position: relative;
    z-index: 2;
    max-width: 720px;
    margin: 0 auto;
    padding: 8vh 32px 16vh;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.signal-status {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--teal);
    margin-bottom: 22px;
}

.signal-cta {
    display: inline-block;
    padding: 18px 48px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--blue), var(--teal-deep));
    color: #ffffff;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 0.01em;
    box-shadow: 0 10px 32px rgba(12, 122, 107, 0.35);
    transition: transform 250ms ease, box-shadow 250ms ease;
}

.signal-cta:hover,
.signal-cta:focus-visible {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 16px 42px rgba(12, 122, 107, 0.5);
}

.signal-cta:focus-visible {
    outline: 2px solid var(--blue-light);
    outline-offset: 4px;
}

.signal-sub {
    margin-top: 22px;
    font-size: 0.9rem;
    color: var(--muted);
}

@media (prefers-reduced-motion: reduce) {
    .signal-cta { transition: none; }
}

/* ---- Footer ---- */
/* Footer markup itself is injected via SSI and sits outside the fixed canvas's
   stacking context, so it needs its own background/z-index or the canvas paints over it. */

footer {
    position: relative;
    z-index: 2;
    background: var(--bg-deep-2);
    text-align: center;
    padding: 24px 32px;
    color: var(--muted);
    font-size: 0.85rem;
}

footer a { color: var(--blue-light); }

/* ---- Responsive ---- */

@media (max-width: 480px) {
    nav .nav-inner { padding: 0 18px; }
    .logo { font-size: 1.1rem; }
    .nav-link { padding: 9px 16px; font-size: 0.82rem; }

    nav.nav-scrolled .logo { font-size: 0.95rem; }
    nav.nav-scrolled .nav-link { padding: 7px 14px; font-size: 0.78rem; }

    .hero { padding: 12vh 20px 8vh; }
    .hero p { font-size: 1rem; }

    .cards-section { padding: 3vh 20px 8vh; }
    .card { padding: 28px 24px; }

    .cta { padding: 6vh 20px 10vh; }
    .signal-cta { padding: 16px 32px; font-size: 1rem; width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, nav, nav .nav-inner, .logo, .nav-link, .card, .signal-cta {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}