/* BlockUnitData — shared header, footer & layout */
:root {
    --dirty-bg: rgba(45, 40, 32, 0.55);
    --dirty-border: rgba(90, 80, 60, 0.35);
    --validated-bg: rgba(42, 48, 38, 0.65);
    --validated-border: rgba(110, 120, 85, 0.45);
    --validated-text: #9BA88A;
    --validated-strong-bg: rgba(52, 58, 44, 0.75);
    --validated-strong-border: rgba(130, 145, 100, 0.5);
    --validated-label: #8A9A78;
}

.navbar {
    background-color: var(--bg-primary);
    border-bottom: 1px solid transparent;
    padding: 1rem 0;
    transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
    border-bottom-color: var(--border);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.navbar-brand {
    display: flex;
    align-items: center;
    color: var(--text-primary) !important;
    text-decoration: none;
}

.brand-lockup {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    min-width: 0;
}

.brand-wordmark {
    font-family: var(--font-sans, 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif);
    font-size: 1.0625rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1;
    color: var(--text-primary);
    white-space: nowrap;
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.brand-name {
    font-weight: 600;
    font-size: 1.0625rem;
    letter-spacing: -0.02em;
}

.brand-logo {
    width: 36px;
    height: 36px;
    display: block;
    flex-shrink: 0;
    object-fit: contain;
}

.nav-link {
    color: var(--text-muted) !important;
    font-size: 0.9375rem;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: color var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0.25rem;
    left: 1rem;
    right: 1rem;
    height: 1px;
    background-color: var(--accent-primary);
    transform: scaleX(0);
    transition: transform var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary) !important;
}

.bud-hp {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.btn-outline-custom {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
    font-weight: 500;
    font-size: 0.9375rem;
    padding: 0.625rem 1.375rem;
    border-radius: 6px;
    transition: border-color var(--transition), background-color var(--transition), color var(--transition), transform var(--transition);
}

.btn-outline-custom:hover {
    border-color: rgba(201, 162, 39, 0.35);
    background: rgba(201, 162, 39, 0.06);
    color: var(--text-primary);
    transform: translateY(-1px);
}

.navbar-tools {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.navbar-sign-in {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted) !important;
    padding: 0.375rem 0.25rem;
    white-space: nowrap;
}

.navbar-sign-in:hover {
    color: var(--text-primary) !important;
}

.btn-nav-signin {
    white-space: nowrap;
    border-color: rgba(201, 162, 39, 0.45);
    color: var(--accent-secondary);
    background: transparent;
    font-weight: 600;
    padding: 0.55rem 1.1rem;
}

.btn-nav-signin:hover {
    border-color: rgba(201, 162, 39, 0.7);
    background: rgba(201, 162, 39, 0.08);
    color: var(--accent-primary);
}

.btn-nav-contributor {
    white-space: nowrap;
    box-shadow: 0 0 0 1px rgba(201, 162, 39, 0.25), 0 6px 18px rgba(201, 162, 39, 0.18);
}

.btn-nav-contributor:hover {
    box-shadow: 0 0 0 1px rgba(201, 162, 39, 0.35), 0 8px 22px rgba(201, 162, 39, 0.28);
}

.language-switcher {
    min-width: 138px;
    height: 40px;
    padding: 0 2.25rem 0 0.875rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background-color: rgba(22, 27, 34, 0.9);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    appearance: none;
    -webkit-appearance: none;
    background-image:
        linear-gradient(45deg, transparent 50%, var(--accent-secondary) 50%),
        linear-gradient(135deg, var(--accent-secondary) 50%, transparent 50%);
    background-position:
        calc(100% - 18px) 17px,
        calc(100% - 12px) 17px;
    background-size: 6px 6px, 6px 6px;
    background-repeat: no-repeat;
    transition: border-color var(--transition), background-color var(--transition);
}

.language-switcher:hover,
.language-switcher:focus {
    border-color: rgba(201, 162, 39, 0.3);
    background-color: rgba(22, 27, 34, 1);
    outline: none;
}

.translate-gadget,
#google_translate_element {
    position: absolute !important;
    left: -9999px !important;
    top: 0 !important;
    width: 1px !important;
    height: 1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
}

.translate-gadget .goog-te-gadget,
.translate-gadget .goog-te-gadget-simple,
.translate-gadget .goog-te-combo {
    display: block !important;
    visibility: visible !important;
    opacity: 0 !important;
    pointer-events: none !important;
    position: absolute !important;
    left: -9999px !important;
}

.goog-te-banner-frame,
.goog-te-banner-frame.skiptranslate,
iframe.goog-te-banner-frame,
iframe.skiptranslate,
#goog-gt-tt,
.goog-te-balloon-frame,
.goog-tooltip,
.VIpgJd-ZVi9od-ORHb-OEVmcd {
    display: none !important;
    visibility: hidden !important;
    height: 0 !important;
    max-height: 0 !important;
    overflow: hidden !important;
}

html.translated-ltr,
html.translated-rtl {
    margin-top: 0 !important;
}

.navbar-container {
    align-items: center;
}

.navbar-lang {
    flex-shrink: 0;
}

@media (max-width: 991.98px) {
    .navbar-container {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto auto;
        grid-template-rows: auto auto;
        align-items: center;
        gap: 0.5rem 0.625rem;
    }

    .navbar-container > .navbar-brand {
        grid-column: 1;
        grid-row: 1;
        min-width: 0;
        margin-right: 0;
    }

    .navbar-container > .navbar-lang {
        grid-column: 2;
        grid-row: 1;
        min-width: 0;
        width: 6.5rem;
        max-width: 6.5rem;
        font-size: 0.8125rem;
        padding-right: 1.5rem;
        margin-left: 0;
    }

    .navbar-container > .navbar-toggler {
        grid-column: 3;
        grid-row: 1;
    }

    .navbar-container > .navbar-collapse {
        grid-column: 1 / -1;
        grid-row: 2;
        width: 100%;
    }

    .navbar-tools {
        width: 100%;
        margin-top: 0.75rem;
    }
}

@media (min-width: 992px) {
    .navbar-container {
        display: flex;
        flex-wrap: nowrap;
        align-items: center;
    }

    .navbar-container > .navbar-brand {
        order: 1;
        flex: 0 0 auto;
    }

    .navbar-container > .navbar-toggler {
        display: none;
    }

    .navbar-container > .navbar-lang {
        order: 3;
        flex: 0 0 auto;
        margin-left: 0.75rem;
    }

    .navbar-container > .navbar-collapse {
        order: 2;
        flex: 1 1 auto;
        display: flex !important;
        align-items: center;
    }
}

.navbar-toggler {
    border-color: var(--border);
    padding: 0.375rem 0.625rem;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28240, 242, 245, 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 0 0 2rem;
    overflow: hidden;
}

.footer-stream-band {
    padding: 1.75rem 0;
    margin-bottom: 2.5rem;
    border-bottom: 1px solid var(--border);
    background-color: rgba(9, 12, 16, 0.5);
}

.stream-track {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 1rem;
    padding: 0 0.5rem;
}

.stream-node {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    border: 1px solid var(--border);
    background-color: var(--bg-card);
}

.stream-node.raw {
    background-color: var(--dirty-bg);
    border-color: var(--dirty-border);
}

.stream-node.review {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    box-shadow: 0 0 8px rgba(201, 162, 39, 0.35);
}

.stream-node.clean {
    background-color: var(--validated-strong-bg);
    border-color: var(--validated-strong-border);
}

.stream-connector {
    flex: 1;
    max-width: 2.5rem;
    height: 1px;
    background-color: rgba(255, 255, 255, 0.08);
}

.stream-connector.gold {
    background: linear-gradient(90deg, rgba(201, 162, 39, 0.15), var(--accent-primary));
}

.stream-connector.clean {
    background: linear-gradient(90deg, var(--accent-primary), var(--validated-border));
}

.footer-unit-tape {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.375rem 0.625rem;
    font-family: ui-monospace, 'Cascadia Code', 'Segoe UI Mono', monospace;
    font-size: 0.625rem;
    letter-spacing: 0.04em;
    color: var(--text-muted);
}

.tape-id {
    padding: 0.2rem 0.4rem;
    border-radius: 2px;
    background-color: rgba(28, 25, 20, 0.6);
    border: 1px solid var(--dirty-border);
    color: #8A8070;
}

.tape-id.reviewed {
    border-color: rgba(201, 162, 39, 0.35);
    color: var(--accent-secondary);
    background-color: rgba(201, 162, 39, 0.08);
}

.tape-id.validated {
    border-color: var(--validated-border);
    color: var(--validated-text);
    background-color: var(--validated-bg);
}

.tape-sep {
    color: rgba(255, 255, 255, 0.2);
    font-size: 0.5625rem;
}

.footer-main {
    padding-bottom: 2.5rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-brand .brand-name {
    font-size: 1.0625rem;
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    max-width: 28rem;
}

.footer-email {
    display: inline-block;
    font-size: 0.9375rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition);
}

.footer-email:hover {
    color: var(--accent-secondary);
}

.footer-nav-title {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.footer-nav-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-nav-links li + li {
    margin-top: 0.35rem;
}

.footer-nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: color var(--transition);
}

.footer-nav-links a:hover {
    color: var(--accent-secondary);
}

.footer-bottom {
    padding-top: 1.75rem;
    border-top: 1px solid var(--border);
    font-size: 0.8125rem;
    color: var(--text-muted);
    text-align: center;
}

.back-to-top {
    position: fixed;
    right: 1.25rem;
    bottom: calc(1.25rem + env(safe-area-inset-bottom, 0px));
    z-index: 1040;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(201, 162, 39, 0.35);
    border-radius: var(--radius);
    background-color: rgba(15, 19, 24, 0.92);
    color: var(--accent-secondary);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: opacity var(--transition), visibility var(--transition), transform var(--transition), background-color var(--transition), border-color var(--transition), color var(--transition);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: var(--text-on-accent);
}

.back-to-top:focus-visible {
    outline: 2px solid var(--accent-secondary);
    outline-offset: 2px;
}

.back-to-top svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.page-wave {
    line-height: 0;
    margin-top: -1.25rem;
    position: relative;
    z-index: 1;
    pointer-events: none;
}

.page-wave svg {
    display: block;
    width: 100%;
    height: 2.75rem;
}

.page-cta {
    margin-top: 1rem;
    padding: 2rem 1.75rem;
    background: rgba(22, 27, 34, 0.45);
    border: 1px solid var(--border);
    border-left: 2px solid var(--accent-primary);
    border-radius: var(--radius-lg);
    max-width: 68ch;
}

.page-cta h2 {
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: 0.85rem;
    color: var(--text-primary);
}

.page-cta p {
    color: var(--text-muted);
    font-size: 0.96875rem;
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.page-cta p:last-of-type {
    margin-bottom: 1.5rem;
}

@media (max-width: 991.98px) {
    .footer-stream-band {
        padding: 1.25rem 0 1.5rem;
        margin-bottom: 2rem;
    }

    .stream-connector {
        max-width: 1.25rem;
    }
}

@media (max-width: 575.98px) {
    .footer-unit-tape {
        font-size: 0.5625rem;
        gap: 0.25rem 0.375rem;
    }

    .navbar-tools .btn {
        width: 100%;
    }
}