:root {
  --bg: #0e1116;
  --bg-elevated: #161b22;
  --bg-card: #1a2029;
  --border: #2a3140;
  --text: #e6e9ef;
  --text-muted: #8b95a7;
  --accent: #5b8cff;
  --accent-hover: #7ba0ff;
  --success: #34c78a;
  --warning: #e8b339;
  --danger: #e5534b;
  --radius: 10px;
  --font: -apple-system, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--bg-elevated);
  border-right: 1px solid var(--border);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  /* Pinned to the window, so Sign out stays in view on long pages like Contacts. */
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar .brand {
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--text);
  padding: 0 12px 20px;
}

.sidebar .brand span { color: var(--accent); }

.sidebar a.nav-link {
  color: var(--text-muted);
  padding: 9px 12px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar a.nav-link:hover {
  background: var(--bg-card);
  color: var(--text);
}

.sidebar a.nav-link.active {
  background: rgba(91, 140, 255, 0.14);
  color: var(--accent-hover);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-passkeys { margin: 0 -12px 8px; }

.sidebar-account {
  margin-top: auto;
  padding: 16px 12px 0;
  border-top: 1px solid var(--border);
}

.sidebar-user {
  font-size: 12px;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: 10px;
}

.sidebar-signout {
  width: 100%;
  justify-content: center;
  padding: 8px 12px;
  font-size: 13px;
}

.main {
  flex: 1;
  min-width: 0;
  padding: 32px 40px;
}

.page-header {
  margin-bottom: 28px;
}

.page-header h1 {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 4px;
  letter-spacing: -0.01em;
}

.page-header p {
  color: var(--text-muted);
  margin: 0;
  font-size: 14px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.stat-card .label {
  color: var(--text-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.stat-card .value {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

table.data-table th {
  text-align: left;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}

table.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}

table.data-table tr:last-child td { border-bottom: none; }
table.data-table tr:hover td { background: rgba(255,255,255,0.02); }

.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.badge-success { background: rgba(52, 199, 138, 0.15); color: var(--success); }
.badge-warning { background: rgba(232, 179, 57, 0.15); color: var(--warning); }
.badge-danger { background: rgba(229, 83, 75, 0.15); color: var(--danger); }
.badge-muted { background: rgba(139, 149, 167, 0.15); color: var(--text-muted); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.btn:hover { border-color: var(--accent); }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #0b1220;
}

.btn-primary:hover { background: var(--accent-hover); }

.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 36px 32px;
}

.auth-card h1 {
  font-size: 20px;
  margin: 0 0 6px;
}

.auth-card p.subtitle {
  color: var(--text-muted);
  font-size: 14px;
  margin: 0 0 24px;
}

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.field input,
.input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

.field input:focus,
.input:focus {
  outline: none;
  border-color: var(--accent);
}

.auth-status {
  font-size: 13px;
  margin-top: 14px;
  min-height: 18px;
}

.auth-status.error { color: var(--danger); }
.auth-status.ok { color: var(--success); }

.auth-switch {
  margin-top: 22px;
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
}

/* Phones and narrow windows: the sidebar becomes a sticky top bar - brand and account actions on the
   first row, the page links as a swipeable row underneath - and wide tables scroll inside their card
   instead of pushing the whole page sideways. */
@media (max-width: 800px) {
  .app-shell { flex-direction: column; }

  .sidebar {
    width: auto;
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-areas: "brand account" "nav nav";
    align-items: center;
    gap: 0;
    padding: 10px 12px 0;
    border-right: 0;
    border-bottom: 1px solid var(--border);
    height: auto;
    overflow: visible;
    z-index: 10;
  }

  .sidebar .brand { grid-area: brand; padding: 0 4px; }

  .sidebar-account {
    grid-area: account;
    margin: 0;
    padding: 0;
    border-top: 0;
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .sidebar-user { display: none; }
  .sidebar-passkeys { margin: 0; padding: 7px 10px !important; }
  .sidebar-signout { width: auto; padding: 7px 12px; }

  .sidebar-nav {
    grid-area: nav;
    flex-direction: row;
    gap: 2px;
    overflow-x: auto;
    margin: 8px -12px 0;
    padding: 0 12px 8px;
    scrollbar-width: none;
  }
  .sidebar-nav::-webkit-scrollbar { display: none; }
  .sidebar-nav a.nav-link { white-space: nowrap; flex-shrink: 0; }

  .main { padding: 20px 16px 32px; }
  .card { overflow-x: auto; }
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }

  /* Under 16px, iOS zooms into a field on focus and doesn't reliably zoom back out. */
  .field input, .input, input[type="text"], input[type="search"], input[type="email"], textarea, select { font-size: 16px; }
}