/* Shared header, footer, and hero. Homepage is the source of truth. */

:root {
    --ink: #071018;
    --ink-2: #0c1828;
    --line: rgba(160, 195, 230, 0.14);
    --fg: #e8f0fa;
    --muted: #aabdd4;
    --dim: #93a7be;
    --navy: #1a3d6b;
    --sky: #5b9fd5;
    --sky-bright: #85c4f5;
    --signal: #5ec9a8;
    --mono: "IBM Plex Mono", ui-monospace, monospace;
    --display: "Fraunces", "Palatino Linotype", Georgia, serif;
    --header-h: 60px;
    --footer-h: 64px;
}

.site-header,
.site-footer,
.hero-block {
    box-sizing: border-box;
}

.site-header *,
.site-footer *,
.hero-block * {
    box-sizing: border-box;
}

.site-header a,
.site-footer a,
.hero-block a {
    color: inherit;
    text-decoration: none;
}

.site-header {
    border-bottom: 1px solid var(--line);
    background: rgba(7, 16, 24, 0.55);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    font-family: var(--mono);
    color: var(--fg);
}

.site-header.is-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1100;
}

.site-header .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-h);
    gap: 20px;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 11px;
    font-family: var(--display);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--fg);
}

.brand img {
    width: 26px;
    height: 26px;
    display: block;
}

.site-header nav {
    display: flex;
    gap: 24px;
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.site-header nav a {
    color: var(--dim);
    transition: color 0.2s;
}

.site-header nav a:hover,
.site-header nav a[aria-current="page"] {
    color: var(--fg);
}

.hero-block.is-overlay {
    position: absolute;
    top: 88px;
    left: 0;
    right: 0;
    z-index: 150;
    pointer-events: none;
}

.hero-block .wrap {
    max-width: 720px;
    margin: 0;
    padding: 0 28px;
}

.hero-block h1 {
    font-family: var(--display);
    font-size: clamp(1.9rem, 4.5vw, 3rem);
    font-weight: 600;
    line-height: 1.12;
    letter-spacing: -0.03em;
    margin: 0;
    color: var(--fg);
    max-width: 16em;
    text-shadow: 0 2px 18px rgba(0, 0, 0, 0.55);
}

.site-footer {
    border-top: 1px solid var(--line);
    background: rgba(7, 16, 24, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 0.7rem 1.25rem 0.8rem;
    font-family: var(--mono);
    color: rgba(232, 240, 250, 0.55);
}

.site-footer.is-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1100;
}

.site-footer-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    align-items: flex-start;
    font-size: 0.72rem;
    letter-spacing: 0.02em;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 0.55rem;
    align-items: center;
}

.site-footer a {
    color: var(--sky-bright);
    transition: opacity 0.2s ease, color 0.2s;
}

.site-footer a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

.footer-network {
    margin: 0;
    color: rgba(232, 240, 250, 0.45);
}

@media (max-width: 768px) {
    .site-header nav {
        gap: 14px;
        font-size: 0.58rem;
    }

    .hero-block.is-overlay {
        top: 76px;
    }

    .hero-block .wrap {
        padding: 0 16px;
    }
}

@media (max-width: 640px) {
    .site-header nav a.nav-dest {
        display: none;
    }

    .site-footer-inner {
        align-items: center;
        text-align: center;
    }

    .footer-nav {
        justify-content: center;
    }
}