:root {
    --maintenance-bg: #08111f;
    --maintenance-surface: #101b2c;
    --maintenance-surface-strong: #16243a;
    --maintenance-line: rgba(148, 163, 184, 0.25);
    --maintenance-text: #f8fafc;
    --maintenance-muted: #aab8ca;
    --maintenance-accent: #2f80ed;
    --maintenance-accent-soft: rgba(47, 128, 237, 0.16);
    --maintenance-warning: #f3b63f;
    --maintenance-shadow: rgba(2, 6, 23, 0.48);
}

html[data-theme="light"] {
    --maintenance-bg: #eef3f9;
    --maintenance-surface: #ffffff;
    --maintenance-surface-strong: #f4f7fb;
    --maintenance-line: rgba(71, 85, 105, 0.2);
    --maintenance-text: #172033;
    --maintenance-muted: #5e6d82;
    --maintenance-accent: #216fd3;
    --maintenance-accent-soft: rgba(33, 111, 211, 0.12);
    --maintenance-warning: #9a6200;
    --maintenance-shadow: rgba(51, 65, 85, 0.18);
}

@media (prefers-color-scheme: light) {
    .iiai-maintenance-standalone:not([data-force-dark="true"]) {
        --maintenance-bg: #eef3f9;
        --maintenance-surface: #ffffff;
        --maintenance-surface-strong: #f4f7fb;
        --maintenance-line: rgba(71, 85, 105, 0.2);
        --maintenance-text: #172033;
        --maintenance-muted: #5e6d82;
        --maintenance-accent: #216fd3;
        --maintenance-accent-soft: rgba(33, 111, 211, 0.12);
        --maintenance-warning: #9a6200;
        --maintenance-shadow: rgba(51, 65, 85, 0.18);
    }
}

.maintenance-drain-banner {
    position: fixed;
    z-index: 10000;
    top: 0;
    right: 0;
    left: 0;
    display: flex;
    justify-content: center;
    padding: max(1rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right)) max(1rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
    color: var(--maintenance-text);
    pointer-events: none;
}

.maintenance-drain-card {
    width: min(46rem, 100%);
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.9rem;
    padding: clamp(1.4rem, 4vw, 2.2rem);
    border: 1px solid var(--maintenance-line);
    border-radius: 1.4rem;
    background: var(--maintenance-surface);
    box-shadow: 0 1.2rem 3rem var(--maintenance-shadow);
    pointer-events: none;
}

.maintenance-drain-mark,
.maintenance-countdown-ring {
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    border-radius: 999px;
}

.maintenance-drain-mark {
    width: 2.5rem;
    height: 2.5rem;
    color: var(--maintenance-warning);
    background: color-mix(in srgb, var(--maintenance-warning) 14%, transparent);
    font-size: 1.1rem;
    font-weight: 800;
}

.maintenance-drain-copy strong,
.maintenance-card h1 {
    color: var(--maintenance-text);
}

.maintenance-drain-copy strong {
    display: block;
    margin-bottom: 0.2rem;
    font: 750 0.95rem/1.2 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.maintenance-drain-copy p {
    margin: 0;
    color: var(--maintenance-muted);
    font: 500 0.82rem/1.35 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.maintenance-countdown-ring {
    width: 3.35rem;
    height: 3.35rem;
    border: 0.24rem solid var(--maintenance-accent-soft);
    color: var(--maintenance-text);
    background: var(--maintenance-surface-strong);
    font: 800 1rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.maintenance-overlay {
    position: fixed;
    z-index: 11000;
    inset: 0;
    display: grid;
    place-items: center;
    overflow: auto;
    padding: max(1rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right)) max(1rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
    color: var(--maintenance-text);
    background:
        radial-gradient(circle at 50% 18%, var(--maintenance-accent-soft), transparent 34rem),
        var(--maintenance-bg);
}

.maintenance-card {
    width: min(38rem, 100%);
    padding: clamp(1.4rem, 4vw, 2.4rem);
    border: 1px solid var(--maintenance-line);
    border-radius: 1.4rem;
    background: var(--maintenance-surface);
    box-shadow: 0 2rem 5rem var(--maintenance-shadow);
}

.maintenance-brand {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    margin-bottom: 2rem;
    color: var(--maintenance-text);
    font: 800 1rem/1 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    letter-spacing: 0.02em;
}

.maintenance-brand-mark {
    display: grid;
    place-items: center;
    width: 2.4rem;
    height: 2.4rem;
    border: 1px solid var(--maintenance-line);
    border-radius: 0.7rem;
    background: var(--maintenance-surface-strong);
    color: var(--maintenance-accent);
    font-size: 1.1rem;
}

.maintenance-eyebrow {
    margin: 0 0 0.65rem;
    color: var(--maintenance-accent);
    font: 750 0.78rem/1.2 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.maintenance-card h1 {
    margin: 0;
    font: 800 clamp(2rem, 7vw, 3.35rem)/0.98 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    letter-spacing: -0.045em;
}

.maintenance-summary {
    margin: 1.2rem 0 0;
    color: var(--maintenance-muted);
    font: 500 1rem/1.6 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.maintenance-status-row {
    display: grid;
    grid-template-columns: 0.7rem minmax(0, 1fr);
    gap: 0.8rem;
    align-items: start;
    margin-top: 1.6rem;
    padding: 1rem;
    border: 1px solid var(--maintenance-line);
    border-radius: 1rem;
    background: var(--maintenance-surface-strong);
}

.maintenance-pulse {
    width: 0.7rem;
    height: 0.7rem;
    margin-top: 0.27rem;
    border-radius: 999px;
    background: var(--maintenance-accent);
    box-shadow: 0 0 0 0.35rem var(--maintenance-accent-soft);
}

.maintenance-status-row strong,
.maintenance-status-row span {
    display: block;
}

.maintenance-status-row strong {
    margin-bottom: 0.25rem;
    font: 700 0.92rem/1.3 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.maintenance-status-row span {
    color: var(--maintenance-muted);
    font: 500 0.82rem/1.45 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.maintenance-actions {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    margin-top: 1.4rem;
}

.maintenance-check-button {
    min-height: 2.75rem;
    padding: 0.7rem 1rem;
    border: 1px solid color-mix(in srgb, var(--maintenance-accent) 72%, white);
    border-radius: 0.75rem;
    color: #ffffff;
    background: var(--maintenance-accent);
    font: 700 0.88rem/1 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    cursor: pointer;
}

.maintenance-check-button:hover,
.maintenance-check-button:focus-visible {
    filter: brightness(1.08);
    outline: 0.2rem solid var(--maintenance-accent-soft);
    outline-offset: 0.15rem;
}

.maintenance-check-button:disabled {
    cursor: wait;
    opacity: 0.65;
}

.maintenance-last-check {
    color: var(--maintenance-muted);
    font: 500 0.75rem/1.4 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.maintenance-noscript {
    width: min(36rem, calc(100% - 2rem));
    margin: 10vh auto;
    padding: 2rem;
    border-radius: 1rem;
    color: var(--maintenance-text);
    background: var(--maintenance-surface);
    font-family: system-ui, sans-serif;
}

.iiai-maintenance-standalone {
    min-height: 100vh;
    margin: 0;
    background: var(--maintenance-bg);
}

@media (max-width: 640px) {
    .maintenance-drain-card {
        grid-template-columns: auto minmax(0, 1fr);
    }

    .maintenance-countdown-ring {
        grid-column: 1 / -1;
        width: 100%;
        height: 2.2rem;
        border-radius: 0.65rem;
    }

    .maintenance-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .maintenance-check-button {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .maintenance-overlay *,
    .maintenance-drain-banner * {
        scroll-behavior: auto !important;
        animation: none !important;
        transition: none !important;
    }
}