:root {
    --bg: #f5f7f9;
    --surface: #ffffff;
    --surface-2: #f1f4f7;
    --text: #0f172a;
    --muted: #5b6b7f;
    --border: #e2e8f0;
    --accent: #0369a1;
    --accent-hover: #075985;
    --accent-text: #ffffff;
    --accent-soft: #e0f2fe;
    --ok: #15803d;
    --ok-bg: #dcfce7;
    --warn: #a16207;
    --warn-bg: #fef9c3;
    --bad: #b91c1c;
    --bad-bg: #fee2e2;
    --info: #1d4ed8;
    --info-bg: #dbeafe;
    --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 4px 16px rgba(15, 23, 42, .06);
    --radius: 12px;
    --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0b1120;
        --surface: #111827;
        --surface-2: #172033;
        --text: #e5e9f0;
        --muted: #94a3b8;
        --border: #243044;
        --accent: #38bdf8;
        --accent-hover: #7dd3fc;
        --accent-text: #0b1120;
        --accent-soft: rgba(56, 189, 248, .14);
        --ok: #4ade80;
        --ok-bg: rgba(34, 197, 94, .14);
        --warn: #facc15;
        --warn-bg: rgba(234, 179, 8, .14);
        --bad: #f87171;
        --bad-bg: rgba(239, 68, 68, .14);
        --info: #93c5fd;
        --info-bg: rgba(59, 130, 246, .16);
        --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
    }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { font-family: var(--font); background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.5; -webkit-font-smoothing: antialiased; }
[x-cloak] { display: none !important; }
a { color: var(--accent); }
h1, h2, h3 { margin: 0; line-height: 1.25; }
h1 { font-size: 20px; }
h2 { font-size: 16px; }
h3 { font-size: 14px; }
code, .mono { font-family: var(--mono); font-size: 12.5px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.nowrap { white-space: nowrap; }
.right { text-align: right; }
.break { word-break: break-all; }

/* Layout */
.shell { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }
.shell > div { min-width: 0; }
.sidebar { background: var(--surface); border-right: 1px solid var(--border); padding: 20px 12px; position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; }
.brand { display: flex; align-items: center; gap: 10px; padding: 0 8px 20px; font-weight: 700; font-size: 15px; }
.brand-mark { width: 28px; height: 28px; border-radius: 8px; background: var(--accent); color: var(--accent-text); display: grid; place-items: center; font-size: 13px; font-weight: 800; }
.nav { display: flex; flex-direction: column; gap: 2px; }
.nav a { display: flex; align-items: center; justify-content: space-between; padding: 9px 12px; border-radius: 8px; color: var(--text); text-decoration: none; font-weight: 500; }
.nav a:hover { background: var(--surface-2); }
.nav a.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.sidebar-foot { margin-top: auto; padding: 12px 8px 0; border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.main { padding: 28px 32px 48px; min-width: 0; max-width: 1280px; width: 100%; }
.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.page-head p { margin: 4px 0 0; color: var(--muted); }
.topbar { display: none; }

/* Cards & grid */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-body { padding: 18px 20px; }
.card-head { padding: 14px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.stack { display: flex; flex-direction: column; gap: 16px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.grid-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { padding: 16px 18px; }
.stat-label { color: var(--muted); font-size: 12.5px; font-weight: 500; }
.stat-value { font-size: 24px; font-weight: 700; margin-top: 4px; font-variant-numeric: tabular-nums; letter-spacing: -.3px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.kv { display: grid; grid-template-columns: 160px 1fr; gap: 8px 16px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }

/* Table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: 12px; font-weight: 600; color: var(--muted); background: var(--surface-2); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
tbody tr.clickable { cursor: pointer; }
tbody tr.clickable:hover { background: var(--surface-2); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.empty { padding: 36px 20px; text-align: center; color: var(--muted); }

/* Badge */
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; background: var(--surface-2); color: var(--muted); }
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }
.badge.info { background: var(--info-bg); color: var(--info); }

/* Buttons & forms */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 8px 14px; min-height: 36px; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--text); font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; white-space: nowrap; }
.btn:hover { background: var(--surface-2); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn.danger { color: var(--bad); }
.btn.danger:hover { background: var(--bad-bg); }
.btn.sm { padding: 5px 10px; min-height: 30px; font-size: 13px; }
.btn.ghost { border-color: transparent; background: transparent; }
.btn:focus-visible, .input:focus-visible, select:focus-visible, textarea:focus-visible, .nav a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field + .field { margin-top: 14px; }
.label { font-weight: 600; font-size: 13px; }
.hint { color: var(--muted); font-size: 12px; }
.input, select, textarea { width: 100%; padding: 9px 12px; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--text); font: inherit; min-height: 38px; }
textarea { resize: vertical; min-height: 84px; font-family: var(--mono); font-size: 12.5px; }
.checkbox { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.checkbox input { width: 16px; height: 16px; accent-color: var(--accent); }
.filters { display: flex; gap: 8px; flex-wrap: wrap; }
.filters .input, .filters select { width: auto; min-width: 150px; }
.alert { padding: 12px 14px; border-radius: 8px; font-size: 13px; }
.alert.warn { background: var(--warn-bg); color: var(--warn); }
.alert.bad { background: var(--bad-bg); color: var(--bad); }
.alert.info { background: var(--info-bg); color: var(--info); }
.alert.ok { background: var(--ok-bg); color: var(--ok); }
.secret { display: flex; gap: 8px; align-items: center; background: var(--surface-2); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; font-family: var(--mono); font-size: 12.5px; word-break: break-all; }
.secret span { flex: 1; }
.pager { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-top: 1px solid var(--border); gap: 8px; flex-wrap: wrap; }

/* Modal */
.modal-backdrop { position: fixed; inset: 0; background: rgba(2, 6, 23, .55); display: flex; align-items: flex-start; justify-content: center; padding: 48px 16px; overflow-y: auto; z-index: 50; }
.modal { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); width: 100%; max-width: 560px; box-shadow: var(--shadow); }
.modal.wide { max-width: 760px; }
.modal-head { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.modal-body { padding: 20px; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; flex-wrap: wrap; }

/* Toast */
.toasts { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 60; max-width: calc(100vw - 32px); }
.toast { padding: 10px 14px; border-radius: 8px; background: var(--text); color: var(--bg); box-shadow: var(--shadow); font-weight: 500; max-width: 380px; }
.toast.error { background: var(--bad); color: #fff; }

/* Auth */
.auth { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.auth .card { width: 100%; max-width: 380px; }
.auth-head { text-align: center; margin-bottom: 20px; }
.auth-head .brand-mark { margin: 0 auto 12px; width: 40px; height: 40px; font-size: 16px; border-radius: 10px; }

.qr-preview { background: #fff; padding: 10px; border-radius: 10px; width: fit-content; border: 1px solid var(--border); }
.qr-preview img { display: block; width: 220px; height: 220px; }

@media (max-width: 900px) {
    .shell { grid-template-columns: 1fr; }
    .sidebar { position: fixed; inset: 0 auto 0 0; width: 260px; z-index: 40; transform: translateX(-100%); transition: transform .2s ease; box-shadow: var(--shadow); }
    .sidebar.open { transform: none; }
    .topbar { display: flex; align-items: center; gap: 12px; padding: 12px 16px; background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 30; }
    .main { padding: 20px 16px 40px; }
    .grid-2 { grid-template-columns: 1fr; }
    .kv { grid-template-columns: 1fr; gap: 2px; }
    .kv dd { margin-bottom: 8px; }
    .filters .input, .filters select { flex: 1 1 140px; min-width: 0; }
    .modal-backdrop { padding: 16px 12px; }
}

@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; animation: none !important; }
}