/*
 * Updates tab (Settings) — presentation only. Renders inside .main (light
 * tokens). Layout = hero (version) + KPI strip (live status) + bento of
 * action cards. Reuses kit .card / .badge / .stat / .toggle-switch / .callout;
 * this file adds the hero band, KPI dots, and the bento grid.
 */

.main .updates-tab,
.main [data-section="updates"] { min-width: 0; }

/* The shared `.settings-form` is capped at 720px — right for the field-heavy
 * tabs (form line-length), but it strands the Updates bento in the left third
 * and forces vertical scroll. The Updates tab is full-width with no live
 * preview, so lift the cap only here (scoped to its active-tab state, so the
 * other tabs keep their readable 720px). (0,3,0) beats `.settings-form` (0,1,0). */
.settings-page__layout[data-active-tab="updates"] .settings-form {
    max-width: none;
}

/* ── Maintenance alert banner ─────────────────────────────────────────── */
.main .updates-alert {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin: 0 0 var(--space-lg);
    padding: var(--space-md) var(--space-lg);
    background: color-mix(in srgb, var(--color-warning) 10%, var(--color-surface));
    border: 1px solid color-mix(in srgb, var(--color-warning) 40%, var(--color-border));
    border-left: 3px solid var(--color-warning);
    border-radius: var(--radius-md);
    color: var(--color-warning);
    font-size: var(--text-sm);
    font-weight: 600;
}
.main .updates-alert__dot {
    flex-shrink: 0;
    width: 9px; height: 9px;
    border-radius: 50%;
    background: var(--color-warning);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-warning) 20%, transparent);
}
.main .updates-alert__text { min-width: 0; }

/* ── Hero — version focal band ─────────────────────────────────────────── */
.main .updates-hero {
    position: relative;
    overflow: hidden;
    margin: 0 0 var(--space-lg);
    padding: var(--space-xl, 32px) var(--space-xl, 32px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background:
        linear-gradient(135deg,
            color-mix(in srgb, var(--color-accent) 14%, var(--color-surface)) 0%,
            var(--color-surface) 60%);
    box-shadow: var(--shadow-sm);
}
.main .updates-hero__glow {
    position: absolute;
    top: -40%; right: -10%;
    width: 380px; height: 380px;
    border-radius: 50%;
    background: radial-gradient(circle,
        color-mix(in srgb, var(--color-accent) 30%, transparent) 0%,
        transparent 70%);
    pointer-events: none;
}
.main .updates-hero__body { position: relative; }
.main .updates-hero__eyebrow {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-warning);
}
.main .updates-hero__version {
    margin: 6px 0 0;
    font-size: clamp(26px, 4vw, 36px);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
    color: var(--color-text);
    font-variant-numeric: tabular-nums;
}
.main .updates-hero__summary {
    margin: 8px 0 0;
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    max-width: 60ch;
}

/* ── KPI strip — three live statuses ──────────────────────────────────── */
.main .updates-kpis {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-base);
    margin: 0 0 var(--space-lg);
}
.main .updates-kpi .stat__label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.main .updates-kpi__dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--color-text-muted);
    flex-shrink: 0;
}
.main .updates-kpi__dot--ok { background: var(--color-success); }
.main .updates-kpi__dot--warn { background: var(--color-warning); }
.main .updates-kpi__dot--muted { background: var(--color-text-muted); }

/* ── Bento — action cards ─────────────────────────────────────────────── */
.main .updates-bento {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    grid-template-areas:
        "migrations maintenance"
        "migrations backup";
    gap: var(--space-lg);
    align-items: start;
}
.main .updates-card--migrations { grid-area: migrations; }
.main .updates-card--maintenance { grid-area: maintenance; }
.main .updates-card--backup { grid-area: backup; }

.main .updates-card .card__body {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}
.main .updates-card--migrations .card__body { min-height: 260px; }

/* Card header: icon chip + headline + (optional) right actions. */
.main .updates-card__headline {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    min-width: 0;
}
.main .updates-card__icon {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px; height: 36px;
    border-radius: var(--radius-md);
    color: var(--color-text);
    background: var(--surface-sunken);
    border: 1px solid var(--color-border);
}
.main .updates-card__icon svg { width: 20px; height: 20px; }

.main .updates-card__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: auto;
}
.main .updates-card--backup .btn svg { width: 18px; height: 18px; }

/* Migrations body. */
.main .updates-migrate__summary { margin: 0; color: var(--color-text-secondary); font-size: var(--text-sm); }
.main .updates-migrate__ok {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    gap: var(--space-sm);
    padding: var(--space-lg) var(--space-md);
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--color-success) 9%, var(--color-surface));
    border: 1px solid color-mix(in srgb, var(--color-success) 28%, var(--color-border));
    color: var(--color-success);
    font-weight: 600;
    font-size: var(--text-sm);
}
.main .updates-migrate__ok-icon {
    display: inline-flex;
    width: 22px; height: 22px;
    flex-shrink: 0;
}
.main .updates-migrate__ok-icon svg { width: 22px; height: 22px; }
.main .updates-migrate__list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}
.main .updates-migrate__item {
    padding: var(--space-sm) var(--space-md);
    font-family: var(--font-mono, ui-monospace, monospace);
    font-size: var(--text-xs);
    color: var(--color-text);
    background: var(--surface-sunken);
    border-top: 1px solid var(--color-border);
    word-break: break-all;
}
.main .updates-migrate__item:first-child { border-top: 0; }

/* Maintenance body. */
.main .updates-maintenance__field {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
}
.main .updates-maintenance__field-label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
}

/* [hidden] guards — these elements carry an author `display` rule (own rule
 * or the kit `.btn`), which beats the UA `[hidden] { display:none }`. Pair
 * each toggled element with a higher-specificity hide so `node.hidden = true`
 * actually removes it (lesson: [hidden] attribute pairing). */
.main .updates-alert[hidden],
.main .updates-migrate__summary[hidden],
.main .updates-migrate__ok[hidden],
.main .updates-migrate__list[hidden],
.main .updates-apply__readiness[hidden],
.main .updates-apply__error[hidden],
.main .updates-card__actions .btn[hidden] { display: none; }

/* ── Apply update — marquee card (upload a signed release ZIP) ─────────── */
.main .updates-apply {
    /* Destructive marquee: a warning-tinted top edge sets it apart from the
     * neutral status cards below without shouting. */
    border-top: 3px solid var(--color-warning);
}
.main .updates-apply .card__body { gap: var(--space-md); }
.main .updates-apply__lead {
    margin: 0;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}
.main .updates-apply__code {
    font-family: var(--font-mono, ui-monospace, monospace);
    font-size: 0.92em;
    padding: 1px 6px;
    border-radius: var(--radius-sm);
    background: var(--surface-sunken);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    white-space: nowrap;
}

/* File picker — visible button + filename; the native input is SR-only and
 * absolutely positioned (lesson: hidden upload input must not hijack scroll). */
.main .updates-apply__file {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}
.main .updates-apply__file-input {
    position: absolute;
    width: 1px; height: 1px;
    top: 0; left: 0;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}
.main .updates-apply__file-name {
    min-width: 0;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    word-break: break-all;
}
.main .updates-apply__file-name--set {
    color: var(--color-text);
    font-weight: 600;
}

/* Readiness note — non-blocking amber line when in-app updates aren't supported. */
.main .updates-apply__readiness {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    margin: 0;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--color-warning) 9%, var(--color-surface));
    border: 1px solid color-mix(in srgb, var(--color-warning) 32%, var(--color-border));
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
}
.main .updates-apply__readiness-dot {
    flex-shrink: 0;
    margin-top: 5px;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--color-warning);
}

/* Destructive warning box. */
.main .updates-apply__warn {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: var(--space-md);
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--color-danger, #e5484d) 7%, var(--color-surface));
    border: 1px solid color-mix(in srgb, var(--color-danger, #e5484d) 28%, var(--color-border));
    border-left: 3px solid var(--color-danger, #e5484d);
}
.main .updates-apply__warn-title {
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--color-text);
}
.main .updates-apply__warn-text {
    font-size: var(--text-xs);
    line-height: 1.55;
    color: var(--color-text-secondary);
}

/* Confirmation field — gates the Apply button. */
.main .updates-apply__confirm {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-width: 320px;
}
.main .updates-apply__confirm-label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
}
.main .updates-apply__confirm-input {
    font-family: var(--font-mono, ui-monospace, monospace);
    letter-spacing: 0.04em;
}
.main .updates-apply__error {
    margin: 0;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--color-danger, #e5484d) 9%, var(--color-surface));
    border: 1px solid color-mix(in srgb, var(--color-danger, #e5484d) 34%, var(--color-border));
    color: var(--color-danger, #e5484d);
    font-size: var(--text-sm);
    font-weight: 600;
    line-height: 1.5;
}

/* ── "Update in progress" full-screen overlay (mounts on <body>) ───────── */
.updates-apply-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    background: color-mix(in srgb, #0b1220 78%, transparent);
    backdrop-filter: blur(2px);
}
.updates-apply-overlay__card {
    /* Mounts outside the `.main` light-token scope, so re-scope the admin
     * light palette onto itself (mirrors .modal--light / the backups overlay). */
    --color-surface: #FFFFFF;
    --color-border: #E4E7EC;
    --color-text: #101828;
    --color-text-secondary: #475467;
    --color-text-muted: #667085;
    --color-accent: #F5C842;
    --color-success: #12B76A;
    --color-warning: #D98B2B;
    --surface-sunken: #F4F5F7;

    width: min(460px, 92vw);
    text-align: center;
    padding: var(--space-xl, 32px);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg, 0 20px 60px rgba(0, 0, 0, 0.4));
}
.updates-apply-overlay__spinner {
    width: 44px; height: 44px;
    margin: 0 auto var(--space-md);
    border-radius: 50%;
    border: 3px solid color-mix(in srgb, var(--color-accent) 30%, transparent);
    border-top-color: var(--color-accent);
}
@media (prefers-reduced-motion: no-preference) {
    .updates-apply-overlay__spinner { animation: updates-apply-spin 0.8s linear infinite; }
}
@keyframes updates-apply-spin { to { transform: rotate(360deg); } }
.updates-apply-overlay__spinner--done {
    animation: none;
    border-color: var(--color-success);
    position: relative;
}
.updates-apply-overlay__spinner--done::after {
    content: "";
    position: absolute;
    left: 50%; top: 46%;
    width: 12px; height: 22px;
    border: solid var(--color-success);
    border-width: 0 3px 3px 0;
    transform: translate(-50%, -50%) rotate(45deg);
}
/* Rolled back / stalled — neutral amber, no success claim. */
.updates-apply-overlay__spinner--warn {
    animation: none;
    border-color: var(--color-warning);
    position: relative;
}
.updates-apply-overlay__spinner--warn::after {
    content: "!";
    position: absolute;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
    font-size: 22px;
    font-weight: 800;
    line-height: 1;
    color: var(--color-warning);
}
.updates-apply-overlay__title {
    margin: 0 0 8px;
    font-size: var(--text-lg, 18px);
    font-weight: 800;
    color: var(--color-text);
}
.updates-apply-overlay__text {
    margin: 0;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.55;
}
.updates-apply-overlay__elapsed {
    margin: var(--space-md) 0 0;
    font-size: var(--text-xs, 12px);
    font-variant-numeric: tabular-nums;
    color: var(--color-text-muted);
}
.updates-apply-overlay__actions {
    margin-top: var(--space-lg);
    display: flex;
    justify-content: center;
}
.updates-apply-overlay__actions:empty { display: none; }

/* ── Responsive ───────────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .main .updates-bento {
        grid-template-columns: minmax(0, 1fr);
        grid-template-areas:
            "migrations"
            "maintenance"
            "backup";
    }
    .main .updates-card--migrations .card__body { min-height: 0; }
}
@media (max-width: 640px) {
    .main .updates-kpis { grid-template-columns: minmax(0, 1fr); }
    .main .updates-hero { padding: var(--space-lg); }
}