:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --ink: #18212b;
  --muted: #5d6b78;
  --line: #dde3e9;
  --brand: #0f766e;
  --brand-ink: #ffffff;
  --brand-soft: #e6f4f2;
  --danger: #b42318;
  --danger-soft: #fdecea;
  --warn: #9a6700;
  --warn-soft: #fff4d6;
  --ok: #1a7f37;
  --ok-soft: #e7f6ec;
  --sidebar: #0e1b24;
  --sidebar-ink: #c9d4dd;
  --radius: 8px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f151b;
    --panel: #172029;
    --ink: #e6edf3;
    --muted: #93a1ad;
    --line: #2a3742;
    --brand: #2bb3a3;
    --brand-ink: #062320;
    --brand-soft: #123a36;
    --danger: #ff7b72;
    --danger-soft: #3b1a19;
    --warn: #e3b341;
    --warn-soft: #3a2e10;
    --ok: #56d364;
    --ok-soft: #12301b;
    --sidebar: #0a1015;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); }
h1, h2, h3 { margin: 0 0 12px; font-weight: 600; }
h1 { font-size: 22px; } h2 { font-size: 17px; } h3 { font-size: 15px; }
a { color: var(--brand); }
.muted { color: var(--muted); }
.small { font-size: 12px; }

/* ---------- auth screens ---------- */
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.auth-card { width: min(440px, 100%); background: var(--panel); border-radius: 12px; box-shadow: var(--shadow);
  padding: 28px; border: 1px solid var(--line); }
.auth-card.wide { width: min(640px, 100%); }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; margin-bottom: 18px; }
.logo-mark { width: 30px; height: 30px; border-radius: 8px; background: var(--brand); color: var(--brand-ink);
  display: grid; place-items: center; font-weight: 800; }

/* ---------- shell ---------- */
.shell { display: grid; grid-template-columns: 230px 1fr; min-height: 100vh; }
.sidebar { background: var(--sidebar); color: var(--sidebar-ink); padding: 16px 10px; display: flex;
  flex-direction: column; gap: 4px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.sidebar .logo { color: #fff; padding: 0 8px; }
.nav-item { display: block; padding: 9px 12px; border-radius: 6px; color: inherit; text-decoration: none; cursor: pointer; }
.nav-item:hover { background: rgba(255, 255, 255, .06); }
.nav-item.active { background: var(--brand); color: var(--brand-ink); }
.sidebar .who { margin-top: auto; padding: 12px; font-size: 12px; border-top: 1px solid rgba(255, 255, 255, .1); }
.main { padding: 22px 26px; min-width: 0; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.menu-btn { display: none; }

@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; inset: 0 auto 0 0; width: 240px; transform: translateX(-100%); transition: transform .2s; z-index: 30; }
  .sidebar.open { transform: none; }
  .menu-btn { display: inline-flex; }
  .main { padding: 16px; }
}

/* ---------- components ---------- */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px;
  box-shadow: var(--shadow); margin-bottom: 16px; min-width: 0; }
.grid { display: grid; gap: 16px; }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; }
.stat .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
.stat .value { font-size: 22px; font-weight: 650; margin-top: 4px; font-variant-numeric: tabular-nums; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .03em; white-space: nowrap; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tr:last-child td { border-bottom: none; }
.empty { color: var(--muted); padding: 14px 4px; }

form.f { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; align-items: end; }
form.f .full { grid-column: 1 / -1; }
label { display: grid; gap: 4px; font-size: 12px; color: var(--muted); font-weight: 500; }
input, select, textarea { font: inherit; color: var(--ink); background: var(--panel); border: 1px solid var(--line);
  border-radius: 6px; padding: 8px 10px; width: 100%; }
textarea { min-height: 70px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--brand); outline-offset: -1px; }

button, .btn { font: inherit; border: 1px solid var(--brand); background: var(--brand); color: var(--brand-ink);
  border-radius: 6px; padding: 8px 14px; cursor: pointer; font-weight: 550; white-space: nowrap; }
button.secondary { background: transparent; color: var(--brand); }
button.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
button.small { padding: 4px 9px; font-size: 12px; }
button:disabled { opacity: .5; cursor: not-allowed; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 16px; overflow-x: auto; }
.tab { padding: 9px 14px; cursor: pointer; border-bottom: 2px solid transparent; color: var(--muted); white-space: nowrap; }
.tab.active { color: var(--ink); border-color: var(--brand); font-weight: 600; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600;
  background: var(--brand-soft); color: var(--brand); white-space: nowrap; }
.badge.danger { background: var(--danger-soft); color: var(--danger); }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.grey { background: var(--line); color: var(--muted); }

.alert { padding: 10px 12px; border-radius: 6px; margin-bottom: 12px; background: var(--danger-soft); color: var(--danger); }
.alert.info { background: var(--brand-soft); color: var(--brand); }
.alert.warn { background: var(--warn-soft); color: var(--warn); }

.toast { position: fixed; right: 16px; bottom: 16px; padding: 12px 16px; border-radius: 8px; background: var(--ink);
  color: var(--bg); box-shadow: var(--shadow); z-index: 50; max-width: min(420px, calc(100vw - 32px)); }
.toast.error { background: var(--danger); color: #fff; }

.modal-bg { position: fixed; inset: 0; background: rgba(0, 0, 0, .45); display: grid; place-items: center; z-index: 40; padding: 16px; }
.modal { background: var(--panel); border-radius: 10px; padding: 20px; width: min(760px, 100%); max-height: 90vh;
  overflow-y: auto; border: 1px solid var(--line); }
.modal-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; }

.beds { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 8px; }
.bed { border: 1px solid var(--line); border-radius: 6px; padding: 8px; font-size: 12px; }
.bed.available { background: var(--ok-soft); }
.bed.occupied { background: var(--danger-soft); }
.bed.maintenance { background: var(--warn-soft); }
.bed b { display: block; font-size: 13px; }

.token-board { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.now-serving { font-size: 34px; font-weight: 700; color: var(--brand); }
pre.summary { white-space: pre-wrap; background: var(--bg); padding: 12px; border-radius: 6px; font-size: 13px; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }
a.btn { display: inline-block; text-decoration: none; }
.btn.small { padding: 4px 9px; font-size: 12px; }
.btn.secondary { background: transparent; color: var(--brand); }
details summary { cursor: pointer; }

/* platform: packages */
.pkg-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.pkg { border: 1px solid var(--line); border-radius: 10px; padding: 14px; display: grid; gap: 4px; align-content: start; }
.pkg-pop { border: 2px solid var(--brand); }
.pkg-off { opacity: .6; }
.pkg-price { font-size: 22px; font-weight: 700; margin-top: 4px; }
.pkg-feat { margin: 6px 0 10px; padding-left: 18px; font-size: 13px; }