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

:root {
    --bg: #0a0e1a;
    --bg-soft: #0f1526;
    --panel: rgba(16, 22, 40, 0.72);
    --panel-border: rgba(94, 150, 255, 0.18);
    --blue: #3b82f6;
    --blue-bright: #60a5fa;
    --green: #22d3a0;
    --green-bright: #4ee6b8;
    --text: #eef2ff;
    --text-muted: #b4bfd6;
    --radius: 16px;
}

* { box-sizing: border-box; }

html {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.5;
}

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

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

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

.bg-base {
    position: fixed;
    inset: 0;
    z-index: 0;
    background:
        radial-gradient(ellipse at 20% 10%, rgba(59, 130, 246, 0.16), transparent 55%),
        radial-gradient(ellipse at 80% 85%, rgba(34, 211, 160, 0.14), transparent 55%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
}

#network-canvas {
    position: fixed;
    inset: 0;
    z-index: 1;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

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

nav {
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 100;
    box-sizing: border-box;
    padding: 22px 0;
    background: rgba(10, 14, 26, 0.35);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(94, 150, 255, 0.08);
    transition: padding 250ms ease, background 250ms ease, box-shadow 250ms ease, border-color 250ms ease;
}

nav.nav-scrolled {
    padding: 12px 0;
    background: rgba(8, 11, 20, 0.86);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    border-bottom-color: rgba(94, 150, 255, 0.16);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text);
    transition: font-size 250ms ease;
}

nav.nav-scrolled .logo { font-size: 1.25rem; }

.logo .accent-use { color: var(--blue-bright); }
.logo .accent-my { color: var(--text); }
.logo .accent-api { color: var(--green-bright); }

.nav-link {
    display: inline-block;
    padding: 12px 24px;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--blue) 0%, var(--green) 100%);
    color: #06111b;
    transition: padding 250ms ease, font-size 250ms ease, transform 180ms ease, box-shadow 180ms ease;
}

nav.nav-scrolled .nav-link {
    padding: 9px 20px;
    font-size: 0.85rem;
}

.nav-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(59, 130, 246, 0.35);
}

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

@media (max-width: 480px) {
    .nav-inner { padding: 0 18px; }
    .logo { font-size: 1.15rem; }
    .nav-link { padding: 9px 16px; font-size: 0.8rem; }

    nav.nav-scrolled .logo { font-size: 1rem; }
    nav.nav-scrolled .nav-link { padding: 7px 14px; font-size: 0.72rem; }
}

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

.hero {
    position: relative;
    z-index: 2;
    padding: 13vh 24px 10vh;
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(2rem, 6vw, 5rem);
    line-height: 1.12;
    font-weight: 700;
    margin: 0 0 24px;
    letter-spacing: -0.01em;
    color: var(--text);
}

.hero h1 .line-gradient {
    background: linear-gradient(100deg, var(--blue-bright), var(--green-bright));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero p {
    max-width: 680px;
    margin: 0 auto;
    font-size: 1.1rem;
    color: var(--text-muted);
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

@media (max-width: 480px) {
    .hero { padding: 11vh 18px 7vh; }
    .hero p { font-size: 1rem; }
}

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

.cards-section {
    position: relative;
    z-index: 2;
    padding: 4vh 24px 10vh;
    max-width: 1200px;
    margin: 0 auto;
}

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

.card {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius);
    padding: 38px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.18);
    border-color: rgba(78, 230, 184, 0.35);
}

.card-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--blue), var(--green));
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.card h3 {
    font-size: 1.2rem;
    margin: 0 0 12px;
    color: var(--text);
}

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

@media (max-width: 480px) {
    .cards-section { padding: 3vh 18px 7vh; }
    .card { padding: 28px; }
}

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

.cta-section {
    position: relative;
    z-index: 2;
    padding: 10vh 24px 14vh;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: linear-gradient(180deg, transparent 0%, rgba(9, 13, 24, 0.6) 40%);
}

.signal-status {
    margin: 0 0 18px;
    letter-spacing: 0.12em;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--green-bright);
    text-transform: uppercase;
}

.signal-cta {
    display: inline-block;
    margin: 0 0 20px;
    padding: 20px 48px;
    font-size: 1.15rem;
    font-weight: 700;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--blue) 0%, var(--green) 100%);
    color: #06111b;
    box-shadow: 0 12px 32px rgba(34, 211, 160, 0.25);
    transition: transform 180ms ease, box-shadow 180ms ease;
}

.signal-cta:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 18px 40px rgba(59, 130, 246, 0.4);
}

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

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

@media (max-width: 480px) {
    .signal-cta { padding: 16px 32px; font-size: 1rem; }
}

/* ---- Footer ---- */
/* Footer markup itself is injected via SSI and shouldn't be edited per-domain. */

footer {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 20px 24px;
    color: var(--text-muted);
    font-size: 0.85rem;
    background: rgba(8, 11, 20, 0.5);
}

footer div {
    margin: 4px 0;
}

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

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