:root {
  --bg: #f6f5fb;
  --surface: #ffffff;
  --surface-2: #f0edf9;
  --text: #1d1a2b;
  --muted: #6b6780;
  --border: #e3dff0;
  --brand: #6b46c1;
  --brand-ink: #ffffff;
  --brand-soft: #ece6fb;
  --good: #1f8a4c;
  --good-soft: #e3f5ea;
  --warn: #a35b00;
  --warn-soft: #fdf0dc;
  --bad: #c0352b;
  --bad-soft: #fbe6e4;
  --shadow: 0 1px 2px rgba(29, 26, 43, 0.06), 0 4px 16px rgba(29, 26, 43, 0.05);
  --radius: 12px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131120;
    --surface: #1c1a2c;
    --surface-2: #25223a;
    --text: #ece9f7;
    --muted: #a19cb8;
    --border: #312d4a;
    --brand: #9b7ef0;
    --brand-ink: #150f2a;
    --brand-soft: #2c2550;
    --good: #5fd08f;
    --good-soft: #173526;
    --warn: #f0b060;
    --warn-soft: #3a2a12;
    --bad: #f07a70;
    --bad-soft: #3d1a18;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0; line-height: 1.25; }
h1 { font-size: 22px; }
h2 { font-size: 16px; }
h3 { font-size: 14px; }
a { color: var(--brand); }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
.boot { padding: 48px; text-align: center; color: var(--muted); }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row.end { justify-content: flex-end; }
.stack { display: grid; gap: 16px; }
.spacer { flex: 1; }

/* ---------- controls ---------- */

.btn {
  appearance: none;
  border: 1px solid transparent;
  background: var(--brand);
  color: var(--brand-ink);
  font: inherit;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { filter: brightness(1.06); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn.ghost:hover { background: var(--surface-2); }
.btn.danger { background: var(--bad); color: #fff; }
.btn.small { padding: 4px 10px; font-size: 13px; }

input, select, textarea {
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  width: 100%;
}
input:focus, select:focus, textarea:focus, .btn:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 1px;
}
label { display: grid; gap: 4px; font-weight: 500; }
label .hint { font-weight: 400; }

.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--muted);
}
.badge.good { background: var(--good-soft); color: var(--good); }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.bad { background: var(--bad-soft); color: var(--bad); }
.badge.brand { background: var(--brand-soft); color: var(--brand); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
}

.error { color: var(--bad); }

/* ---------- login ---------- */

.login {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 16px;
}
.login .card { width: min(380px, 100%); padding: 28px; display: grid; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
.brand img { width: 32px; height: 32px; }
.code-input { letter-spacing: 6px; font-size: 20px; text-align: center; font-family: ui-monospace, Menlo, monospace; }

/* ---------- shell ---------- */

.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.side {
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.nav { display: grid; gap: 2px; }
.nav a {
  color: var(--text);
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 8px;
  font-weight: 500;
}
.nav a:hover { background: var(--surface-2); }
.nav a.active { background: var(--brand-soft); color: var(--brand); }
.me { margin-top: auto; display: grid; gap: 8px; padding: 8px; border-top: 1px solid var(--border); }
.main { padding: 24px; min-width: 0; display: grid; gap: 20px; align-content: start; }

@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  /* Upar: logo + logout ek line me, neeche menu jo side me scroll ho. */
  .side {
    position: sticky;
    z-index: 1;
    height: auto;
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-areas: "brand me" "nav nav";
    gap: 8px;
    padding: 10px 16px 0;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }
  .side .brand { grid-area: brand; }
  .me { grid-area: me; margin: 0; border: 0; padding: 0; }
  .me .who { display: none; }
  .nav { grid-area: nav; display: flex; gap: 4px; overflow-x: auto; margin: 0 -16px; padding: 0 16px 8px; }
  .nav a { white-space: nowrap; padding: 6px 12px; }
  .main { padding: 16px; }
}

/* ---------- dashboard ---------- */

.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.stat { display: grid; gap: 2px; }
.stat .value { font-size: 26px; font-weight: 700; letter-spacing: -0.5px; }
.stat .label { color: var(--muted); font-size: 13px; }
.charts { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 12px; }
.chart svg { width: 100%; height: 140px; display: block; }
.chart .bar { fill: var(--brand); opacity: 0.85; }
.chart .bar.today { opacity: 1; }
.chart .axis { fill: var(--muted); font-size: 10px; }
.chart .total { font-size: 20px; font-weight: 700; }

/* ---------- tables ---------- */

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 0.4px; }
tbody tr.link { cursor: pointer; }
tbody tr.link:hover { background: var(--surface-2); }
td.wrap { white-space: normal; }
.empty { padding: 32px; text-align: center; color: var(--muted); }

.search { display: flex; gap: 8px; max-width: 420px; }

/* ---------- user detail ---------- */

.detail { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }

/* ---------- dialog & toast ---------- */

dialog {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  padding: 20px;
  width: min(420px, calc(100vw - 32px));
  box-shadow: var(--shadow);
}
dialog::backdrop { background: rgba(10, 8, 20, 0.45); }
dialog form { display: grid; gap: 14px; }
#dialog-fields { display: grid; gap: 12px; }

#toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: 10px;
  font-weight: 500;
  box-shadow: var(--shadow);
  max-width: calc(100vw - 32px);
}
#toast.bad { background: var(--bad); color: #fff; }