:root {
    color-scheme: light;
    --ink: #142033;
    --muted: #637083;
    --line: #dfe4eb;
    --panel: #ffffff;
    --blue: #2563eb;
    --danger: #b42318;
    --warning-bg: #fff7e8;
    --warning-line: #f2cc8f;
}

html, body {
    margin: 0;
    min-height: 100%;
    font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--ink);
    background: #f3f5f8;
}

* { box-sizing: border-box; }
a { color: #1d4ed8; }
h1 { margin: 0; font-size: clamp(1.7rem, 2vw, 2.25rem); letter-spacing: -.035em; }
h2 { margin: 0; font-size: 1.2rem; }
h3 { margin: .25rem 0 .75rem; }
h1:focus { outline: none; }

.page-heading, .panel-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.eyebrow {
    color: #64748b;
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .11em;
    margin: 0 0 .35rem;
    text-transform: uppercase;
}

.muted { color: var(--muted); }

.mode-banner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .65rem 1rem;
    color: #536174;
    font-size: .86rem;
}

.mode-chip, .status-pill {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: .25rem .6rem;
    border-radius: 999px;
    background: #e8eef8;
    color: #26466d;
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.live-blocked {
    color: #991b1b;
    background: #fee2e2;
    border: 1px solid #fecaca;
    border-radius: 6px;
    padding: .3rem .55rem;
    letter-spacing: .04em;
}

.status-warning { background: #fff1cc; color: #855d00; }
.status-danger { background: #fee2e2; color: #991b1b; }
.status-success { background: #dcfce7; color: #166534; }

.notice {
    border: 1px solid var(--line);
    border-radius: 10px;
    margin: 1rem 0 1.35rem;
    padding: .85rem 1rem;
    line-height: 1.45;
}

.notice-warning { background: var(--warning-bg); border-color: var(--warning-line); }
.notice-info { background: #eef6ff; border-color: #bcd8f6; }
.notice-success { background: #ecfdf3; border-color: #a7e5bf; }

.metric-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.metric-card, .panel, .login-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: 0 6px 18px rgb(20 32 51 / 4%);
}

.metric-card { padding: 1rem; }
.metric-card span, .metric-card small { display: block; color: var(--muted); }
.metric-card strong { display: block; font-size: 1.35rem; margin: .35rem 0; }
.metric-card small { font-size: .75rem; }

.panel { padding: 1.25rem; margin-bottom: 1rem; }
.empty-state { text-align: center; padding: 3.5rem 1.5rem; }
.empty-icon { display: block; color: #8ba1bb; font-size: 2.2rem; margin-bottom: .75rem; }
.empty-state p { color: var(--muted); margin: .5rem auto 0; max-width: 540px; }
.empty-state.compact { padding: 1.5rem 1rem; }

.table-scroll { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.data-table th, .data-table td { border-bottom: 1px solid var(--line); padding: .72rem .6rem; text-align: left; vertical-align: top; }
.data-table th { color: var(--muted); font-size: .7rem; letter-spacing: .05em; text-transform: uppercase; white-space: nowrap; }
.data-table tbody tr:last-child td { border-bottom: 0; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .78rem; overflow-wrap: anywhere; }
.detail-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: .85rem; margin: 0 0 1.25rem; }
.detail-grid div { border: 1px solid var(--line); border-radius: 8px; padding: .75rem; }
.detail-grid dt { color: var(--muted); font-size: .7rem; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; }
.detail-grid dd { margin: .35rem 0 0; }

.command-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: .65rem;
    margin-top: 1rem;
}

.command-button, .button {
    border: 1px solid #cad3df;
    border-radius: 8px;
    background: #fff;
    color: var(--ink);
    cursor: pointer;
    font: inherit;
    font-weight: 700;
    padding: .65rem .85rem;
}

.command-button:hover, .button:hover { border-color: #8190a3; }
.command-danger, .button-danger { color: #991b1b; border-color: #e7a4a0; background: #fff7f6; }
.button-primary { color: #fff; border-color: var(--blue); background: var(--blue); }
.button-quiet { padding: .4rem .65rem; background: #f7f8fa; }
.button:disabled { cursor: not-allowed; opacity: .55; }

.confirmation-card {
    margin-top: 1rem;
    padding: 1rem;
    border: 2px solid #efc36f;
    border-radius: 10px;
    background: #fffbf2;
}

.confirmation-card label, .login-form label { display: block; font-weight: 700; margin: .75rem 0 .35rem; }
.confirmation-card textarea, .confirmation-card input, .login-form input {
    width: 100%;
    border: 1px solid #b8c2cf;
    border-radius: 7px;
    padding: .65rem;
    background: #fff;
}
.confirmation-card textarea { min-height: 90px; resize: vertical; }
.confirmation-card code { overflow-wrap: anywhere; }
.button-row { display: flex; justify-content: flex-end; gap: .6rem; margin-top: 1rem; }

.login-shell { min-height: 75vh; display: grid; place-items: center; padding: 1rem; }
.login-card { width: min(440px, 100%); padding: 1.5rem; }
.login-form .button { width: 100%; margin-top: 1rem; }

input:focus, textarea:focus, button:focus-visible, a:focus-visible {
    outline: 3px solid rgb(37 99 235 / 30%);
    outline-offset: 2px;
}

.validation-message { color: var(--danger); }

@media (max-width: 640px) {
    .page-heading, .panel-heading { flex-direction: column; }
    .button-row { flex-direction: column-reverse; }
}