/* Shared primary navigation — single source of truth.
   Markup is injected by js/site-nav.js as a <site-nav> custom element.
   Per-page appearance is driven by the CSS variables set on :root.

   The main page (hero) is the canonical look (white on dark) and pins
   --site-nav-color: #ffffff regardless of OS color scheme. Other pages
   inherit defaults below and may override with their own text color. */

:root {
    /* CTA shimmer — single-family indigo-violet sweep painted onto the
       text via background-clip: text. Stays inside one hue family (no
       rainbow); tonal value (lightness) does the heavy lifting; one
       saturation peak in the middle; the climax carries a subtle
       indigo whisper instead of pure system white. Echoes the
       WebGL particles in the hero — cool, refined, spacy without
       being a generic "cool gradient." */

    /* Light mode: dark text catches a deep indigo entry, lifts through
       a saturated mid, falls to a frosted near-white peak. */
    --site-nav-cta-sheen-soft:   #3d44a6;
    --site-nav-cta-sheen-mid:    #7281e0;
    --site-nav-cta-sheen-strong: #b8c2f0;
    --site-nav-cta-sheen-peak:   #ebeefd;
}

@media (prefers-color-scheme: dark) {
    :root {
        /* Dark mode: light text catches a brighter, more electric
           indigo band that climaxes near-white. Same family, lifted
           luminosity to read against an already-bright base. */
        --site-nav-cta-sheen-soft:   #6168d4;
        --site-nav-cta-sheen-mid:    #95a3ee;
        --site-nav-cta-sheen-strong: #cfd6f8;
        --site-nav-cta-sheen-peak:   #f4f6ff;
    }
}

/* Custom element wrapper is layout-transparent — the inner <nav> is fixed. */
site-nav {
    display: contents;
}

.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    z-index: var(--site-nav-z, 30);
    box-sizing: border-box;
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 100vw;
    min-width: 0;
    padding:
        calc(env(safe-area-inset-top, 0px) + 14px)
        max(40px, env(safe-area-inset-right, 0px))
        0
        max(40px, env(safe-area-inset-left, 0px));
    color: var(--site-nav-color, #ffffff);
    pointer-events: none;
    background: transparent;
    border-bottom: 1px solid transparent;
    -webkit-backdrop-filter: blur(0);
    backdrop-filter: blur(0);
    transition:
        background-color 0.2s ease,
        border-color 0.2s ease,
        backdrop-filter 0.2s ease,
        -webkit-backdrop-filter 0.2s ease,
        color 0.2s ease,
        padding-bottom 0.2s ease;
}

.site-nav--scrolled {
    padding-bottom: 14px;
    color: #050505;
    background: rgba(255, 255, 255, 0.8);
    border-bottom-color: rgba(5, 5, 5, 0.08);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
}

.site-nav--scrolled .site-nav-logo {
    filter: brightness(0) !important;
    mix-blend-mode: normal;
}

.site-nav-logo-link,
.site-nav-link {
    pointer-events: auto;
}

.site-nav-logo-link {
    flex: 0 0 auto;
}

.site-nav-links {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: clamp(14px, 1.6vw, 24px);
    min-width: 0;
    max-width: calc(100vw - 96px);
}

.site-nav-text-links {
    display: flex;
    align-items: center;
    gap: clamp(9px, 1vw, 14px);
    min-width: 0;
    flex: 0 1 auto;
}

.site-nav-link {
    display: inline-block;
    font-size: 13px;
    font-weight: 500;
    line-height: 19.5px;
    letter-spacing: 0;
    text-transform: uppercase;
    white-space: nowrap;
    color: inherit;
}

.site-nav-logo {
    display: block;
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    border-radius: 1px;
    object-fit: contain;
    filter: var(--site-nav-logo-filter, brightness(0) invert(1)) !important;
    mix-blend-mode: var(--site-nav-logo-blend, difference);
}

@media (max-width: 760px) {
    .site-nav-logo {
        width: 40px;
        height: 28px;
    }
}

.site-nav-logo-link:focus-visible,
.site-nav-link:focus-visible {
    outline: 2px solid var(--site-nav-focus-color, currentColor);
    outline-offset: 2px;
}

@media (max-width: 760px) {
    .site-nav {
        padding:
            calc(env(safe-area-inset-top, 0px) + 20px)
            max(20px, env(safe-area-inset-right, 0px))
            0
            max(20px, env(safe-area-inset-left, 0px));
    }

    .site-nav-links {
        gap: 12px;
        max-width: calc(100vw - 84px);
    }

    .site-nav-link {
        font-size: 12px;
        line-height: 1.35;
    }

    .site-nav-cta {
        display: none;
    }
}

@media (max-width: 479px) {
    .site-nav {
        padding-left: max(20px, env(safe-area-inset-left, 0px));
        padding-right: max(20px, env(safe-area-inset-right, 0px));
    }

    .site-nav-links {
        gap: 10px;
    }

    .site-nav-text-links {
        gap: 9px;
    }
}

@media (max-width: 360px) {
    .site-nav {
        padding-left: max(16px, env(safe-area-inset-left, 0px));
        padding-right: max(16px, env(safe-area-inset-right, 0px));
    }

    .site-nav-link {
        font-size: 11px;
    }

    .site-nav-text-links {
        gap: 7px;
    }
}