:root {
    --bg: #f4f5f7;
    --surface: #ffffff;
    --text: #1c2330;
    --muted: #5d6778;
    --line: #dde1e8;
    --accent: #1f5fbf;
    --accent-text: #ffffff;
    --ok: #1a7f4b;
    --ok-bg: #e5f5ec;
    --warn: #8a5a00;
    --warn-bg: #fff4d6;
    --danger: #b3261e;
    --danger-bg: #fdecea;
    --radius: 10px;
    color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #12151b;
        --surface: #1b2029;
        --text: #e7eaf0;
        --muted: #9aa5b8;
        --line: #2c3340;
        --accent: #6ea3f5;
        --accent-text: #0d1420;
        --ok: #6fd3a0;
        --ok-bg: #153325;
        --warn: #f1c661;
        --warn-bg: #3a2f10;
        --danger: #ff8d85;
        --danger-bg: #3d1a18;
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 15px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

a { color: var(--accent); }
h1 { font-size: 1.35rem; margin: 0 0 .35rem; }
h2 { font-size: 1.1rem; margin: 0 0 .75rem; }
p { margin: 0 0 .8rem; }
code { font-family: ui-monospace, Consolas, monospace; font-size: .92em; }

.wrap { max-width: 920px; margin: 0 auto; padding: 0 16px; }
main.wrap { padding-top: 22px; padding-bottom: 48px; }

.muted { color: var(--muted); }
.small { font-size: .86rem; }

/* Top bar */
.topbar { background: var(--surface); border-bottom: 1px solid var(--line); }
.topbar-inner { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; min-height: 56px; padding-top: 8px; padding-bottom: 8px; }
.brand { font-weight: 700; font-size: 1.05rem; color: var(--text); text-decoration: none; }
.nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.nav a { padding: 6px 12px; border-radius: 8px; color: var(--muted); text-decoration: none; font-weight: 500; }
.nav a:hover { color: var(--text); }
.nav a.active { background: var(--bg); color: var(--text); }
.logout { display: flex; align-items: center; gap: 10px; margin: 0; }
.who { color: var(--muted); font-size: .86rem; }

/* Cards */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; margin-bottom: 18px; }
.card-highlight { border-color: var(--warn); background: var(--warn-bg); }
.narrow { max-width: 440px; }
.empty { text-align: center; padding: 26px 0 10px; }

/* Forms */
.stack { display: grid; gap: 14px; }
.field { display: grid; gap: 5px; }
.field > span { font-weight: 600; font-size: .9rem; }
.field em { font-weight: 400; font-style: normal; color: var(--muted); }

input[type="text"], input[type="email"], input[type="password"], input[type="number"] {
    width: 100%;
    padding: 9px 11px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text);
    font: inherit;
}
input:focus-visible, button:focus-visible, a:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.btn {
    display: inline-block;
    padding: 9px 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text);
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
}
.btn:hover { border-color: var(--muted); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn-primary:hover { filter: brightness(1.08); border-color: var(--accent); }
.btn-danger { color: var(--danger); }
.btn-quiet { padding: 6px 12px; font-weight: 500; }
.btn-block { width: 100%; }

.grid-form { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.grid-actions { grid-column: 1 / -1; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.inline-form { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 8px; }
.inline-form input { width: auto; flex: 1; min-width: 150px; }
.row { display: flex; gap: 10px; flex-wrap: wrap; }
.row form { margin: 0; }

.code-input { font-family: ui-monospace, Consolas, monospace; letter-spacing: .12em; font-size: 1.1rem; }

/* Alerts and badges */
.alert { padding: 11px 14px; border-radius: 8px; margin-bottom: 16px; border: 1px solid transparent; }
.alert-ok { background: var(--ok-bg); color: var(--ok); }
.alert-warn { background: var(--warn-bg); color: var(--warn); }
.alert-error { background: var(--danger-bg); color: var(--danger); }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: .8rem; font-weight: 600; background: var(--bg); color: var(--muted); }
.badge-ok { background: var(--ok-bg); color: var(--ok); }
.badge-partial, .badge-running, .badge-cancelled, .badge-interrupted { background: var(--warn-bg); color: var(--warn); }
.badge-failed { background: var(--danger-bg); color: var(--danger); }

/* Export form */
.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); margin-bottom: 14px; }
.check { display: inline-flex; align-items: center; gap: 9px; cursor: pointer; }
.check input { width: 17px; height: 17px; accent-color: var(--accent); }

.group { border: 1px solid var(--line); border-radius: 8px; padding: 6px 14px 10px; margin: 0 0 14px; }
.group legend { padding: 0 6px; font-weight: 600; }
.group legend .muted { font-weight: 400; margin-left: 6px; }
.group .alert { margin: 8px 0; }

.db-list { list-style: none; margin: 0; padding: 0; }
.db-list li { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 7px 0; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.db-list li:last-child { border-bottom: 0; }
.db-name { font-family: ui-monospace, Consolas, monospace; font-size: .93rem; overflow-wrap: anywhere; }

.export-bar { display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap; margin: 18px 0 10px; }
.export-bar .field { flex: 1; min-width: 220px; max-width: 320px; }

/* Tables */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table th { font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; }
.table td { font-variant-numeric: tabular-nums; }
.actions { display: flex; gap: 10px; align-items: flex-start; justify-content: flex-end; flex-wrap: wrap; }
.actions form { margin: 0; }
details summary { cursor: pointer; color: var(--accent); font-size: .9rem; }
.notes { margin: 6px 0 0; padding-left: 18px; font-size: .88rem; color: var(--muted); }

/* Security page */
.steps { padding-left: 20px; display: grid; gap: 14px; }
.qr-row { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; margin-top: 10px; }
.qr img { display: block; background: #fff; border-radius: 6px; image-rendering: pixelated; }
.secret { font-size: 1.05rem; letter-spacing: .05em; overflow-wrap: anywhere; }
.codes { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 8px; }
.codes code { display: block; padding: 8px 10px; background: var(--surface); border: 1px solid var(--line); border-radius: 6px; text-align: center; font-size: 1rem; }

/* Sign-in pages */
body.guest { display: grid; place-items: center; min-height: 100vh; padding: 16px; }
.guest-card { width: 100%; max-width: 380px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.guest-card .brand { display: block; text-align: center; margin: 0 0 20px; font-size: 1.25rem; }

@media (max-width: 560px) {
    .card { padding: 16px; }
    .who { display: none; }
}