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

:root {
    --bg-darker: #04140f;
    --bg-dark: #07231b;
    --bg-dark-2: #0a2a2c;
    --green: #34d399;
    --green-soft: #6ee7b7;
    --blue: #38bdf8;
    --blue-soft: #7dd3fc;
    --text: #eafff5;
    --muted: rgba(234, 255, 245, 0.72);
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.12);
    --nav-bg: rgba(5, 20, 16, 0.45);
    --nav-bg-scrolled: rgba(5, 20, 16, 0.92);
}

* {
    box-sizing: border-box;
}

html {
    overflow-x: hidden;
}

html, body {
    margin: 0;
    padding: 0;
}

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

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

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

/* ---- Background layers ---- */

.bg-gradient {
    position: fixed;
    inset: 0;
    z-index: 0;
    background:
        radial-gradient(ellipse at 15% 20%, rgba(52, 211, 153, 0.16), transparent 55%),
        radial-gradient(ellipse at 85% 75%, rgba(56, 189, 248, 0.16), transparent 55%),
        linear-gradient(160deg, var(--bg-darker), var(--bg-dark) 45%, var(--bg-dark-2));
}

#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1;
    pointer-events: none;
    display: block;
}

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

nav {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-sizing: border-box;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: background 250ms ease, box-shadow 250ms ease;
}

nav.nav-scrolled {
    background: var(--nav-bg-scrolled);
    box-shadow: 0 4px 28px rgba(0, 0, 0, 0.35);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 32px;
    transition: padding 250ms ease;
}

nav.nav-scrolled .nav-inner {
    padding: 12px 32px;
}

.logo {
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: font-size 250ms ease;
}

nav.nav-scrolled .logo {
    font-size: 1.2rem;
}

.logo-note {
    color: var(--text);
}

.logo-divider {
    width: 2px;
    height: 1.1em;
    background: linear-gradient(180deg, var(--green), var(--blue));
    border-radius: 2px;
}

.logo-split {
    background: linear-gradient(90deg, var(--green-soft), var(--blue-soft));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-link {
    display: inline-block;
    padding: 10px 22px;
    border-radius: 8px;
    background: linear-gradient(90deg, var(--green), var(--blue));
    color: #04140f;
    font-weight: 600;
    font-size: 0.95rem;
    transition: transform 250ms ease, box-shadow 250ms ease, font-size 250ms ease, padding 250ms ease;
}

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

.nav-link:hover,
.nav-link:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(56, 189, 248, 0.35);
}

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

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

.hero {
    position: relative;
    z-index: 2;
    padding: 13vh 24px 10vh;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(2rem, 6vw, 5rem);
    line-height: 1.12;
    font-weight: 800;
    margin: 0 0 24px;
    letter-spacing: -0.02em;
    color: var(--text);
}

.hero p {
    max-width: 680px;
    margin: 0 auto;
    color: var(--muted);
    font-size: clamp(1rem, 1.6vw, 1.2rem);
    line-height: 1.6;
}

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

.cards-section {
    position: relative;
    z-index: 2;
}

.cards {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 24px 10vh;
    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: 16px;
    padding: 38px;
    transition: transform 250ms ease, box-shadow 250ms ease, border-color 250ms ease;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(110, 231, 183, 0.4);
}

.card h3 {
    font-size: 1.25rem;
    margin: 0 0 14px;
    color: var(--green-soft);
}

.card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.6;
    font-size: 0.98rem;
}

/* ---- Signal line / CTA ---- */

.signal-line {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 12vh 24px 14vh;
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 22px;
}

.signal-status {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--green-soft);
    margin: 0;
}

.signal-cta {
    display: inline-block;
    padding: 18px 46px;
    border-radius: 10px;
    background: linear-gradient(90deg, var(--green), var(--blue));
    color: #04140f;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 0.01em;
    transition: transform 250ms ease, box-shadow 250ms ease;
}

.signal-cta:hover,
.signal-cta:focus-visible {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 14px 34px rgba(52, 211, 153, 0.35);
}

.signal-cta:focus-visible {
    outline: 2px solid var(--blue-soft);
    outline-offset: 3px;
}

.signal-sub {
    margin: 0;
    color: var(--muted);
    font-size: 0.9rem;
}

/* ---- Footer ---- */
/* Footer markup itself is injected via SSI and shouldn't be edited per-domain -
   spacing/contrast live here instead. */

footer {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 24px 24px;
    color: var(--text);
    background: rgba(4, 20, 15, 0.55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    font-size: 0.85rem;
}

footer div {
    margin: 4px 0;
}

footer a {
    color: var(--green-soft);
    text-decoration: underline;
}

@media (max-width: 480px) {
    .nav-inner {
        padding: 16px 18px;
    }

    .logo {
        font-size: 1.2rem;
    }

    .nav-link {
        padding: 8px 14px;
        font-size: 0.8rem;
    }

    nav.nav-scrolled .nav-inner {
        padding: 10px 18px;
    }

    nav.nav-scrolled .logo {
        font-size: 1.05rem;
    }

    nav.nav-scrolled .nav-link {
        padding: 6px 14px;
        font-size: 0.75rem;
    }

    .hero {
        padding: 11vh 18px 7vh;
    }

    .cards {
        padding: 20px 18px 8vh;
        gap: 18px;
    }

    .card {
        padding: 28px;
    }

    .signal-line {
        padding: 9vh 18px 11vh;
    }

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

@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
    }

    #bg-canvas {
        opacity: 0.5;
    }
}