/* ── GAIN Design Tokens ─────────────────────────────────────────────────── */
:root {
  --container-max: 1400px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --topbar-height: 56px;
  --bg: #ffffff;
  --surface: #f7f7f7;
  --surface-2: #ffffff;
  --surface-muted: #f2f2f7;
  --text: #0d0d0d;
  --text-muted: #6b7280;
  --text-subtle: #9ca3af;
  --border: #e5e7eb;
  --border-2: #d1d5db;
  --primary: #003fe7;
  --primary-hover: #0030b8;
  --focus-ring: rgba(0, 63, 231, 0.14);
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --topbar-bg: #000000;
  --topbar-text: #ffffff;
  --radius-sm: 6px;
  --radius-md: 8px;
}

/* ── Reset ──────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--surface-muted);
  min-height: 100vh;
}
button { cursor: pointer; font: inherit; }
input, button { border: none; outline: none; }
a { color: inherit; }

/* ── Layout ─────────────────────────────────────────────────────────────── */
.admin-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--bg);
}

/* ── Shared auth splash ─────────────────────────────────────────────────── */
.auth-splash {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 16px;
}

.auth-splash__panel {
  width: 100%;
  max-width: 400px;
}

.auth-splash__logo {
  display: block;
  max-width: 260px;
  height: auto;
  margin: 0 auto 48px;
}

.auth-splash__card {
  padding: 36px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.auth-splash__header {
  margin-bottom: 24px;
}

.auth-splash__header h1 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
}

.auth-splash__header p {
  margin-top: 6px;
  color: var(--text-muted);
}

.auth-splash__card .btn {
  width: 100%;
  justify-content: center;
}

/* ── Top bar ────────────────────────────────────────────────────────────── */
.admin-topbar {
  height: var(--topbar-height);
  background: var(--topbar-bg);
  color: var(--topbar-text);
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.admin-topbar__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.admin-topbar__brand { display: flex; align-items: center; gap: 12px; }
.admin-topbar__logo {
  height: calc(var(--topbar-height) * 0.9);
  width: auto;
  display: block;
}
.admin-topbar__divider {
  width: 1px;
  height: 24px;
  background: rgba(255, 255, 255, .2);
  flex-shrink: 0;
}
.admin-topbar__title { font-size: 14px; font-weight: 500; color: var(--topbar-text); }
.admin-topbar__actions { display: flex; align-items: center; gap: 12px; }
.admin-topbar__user { font-size: 13px; color: rgba(255, 255, 255, .7); }

/* ── Tabs ───────────────────────────────────────────────────────────────── */
.admin-tabs-wrap {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.admin-tabs {
  display: flex;
  flex-wrap: wrap;
  padding: 0 24px;
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
}
.admin-tab-btn {
  padding: 12px 16px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s;
}
.admin-tab-btn:hover { color: var(--text); }
.admin-tab-btn.is-active { color: var(--primary); border-bottom-color: var(--primary); }

/* ── Tab panels ─────────────────────────────────────────────────────────── */
.admin-tab-panel { display: none; padding: 24px; max-width: var(--container-max); margin: 0 auto; width: 100%; }
.admin-tab-panel.is-active { display: block; }

/* ── Cards ──────────────────────────────────────────────────────────────── */
.admin-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
}
.admin-card + .admin-card { margin-top: 16px; }
.admin-card--spaced { margin-top: 16px; }
.admin-card__title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.admin-copy {
  color: var(--text-muted);
  font-size: 13px;
}

/* ── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
  border: 1px solid transparent;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); }
.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--border-2); }
.btn-secondary:hover:not(:disabled) { background: var(--surface-muted); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover:not(:disabled) { filter: brightness(0.9); }
.btn-ghost { background: none; color: var(--text-muted); border: 1px solid transparent; }
.btn-ghost:hover { color: var(--text); }
.btn-topbar {
  background: rgba(255, 255, 255, .1);
  color: #fff;
  border-color: rgba(255, 255, 255, .2);
  font-size: 12px;
  padding: 5px 10px;
}
.btn-topbar:hover { background: rgba(255, 255, 255, .18); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* ── Form fields ────────────────────────────────────────────────────────── */
.admin-field { display: flex; flex-direction: column; gap: 4px; }
.admin-field + .admin-field { margin-top: 12px; }
.admin-field label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.admin-input {
  padding: 8px 10px;
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  font-size: 13px;
  background: var(--bg);
  color: var(--text);
  width: 100%;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.admin-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--focus-ring); }
.admin-textarea {
  min-height: 84px;
  resize: vertical;
  font-family: Menlo, Consolas, monospace;
  line-height: 1.45;
}

.admin-note {
  margin-top: 8px;
  font-size: 12px;
  color: #92400e;
}

/* ── Alert banners ──────────────────────────────────────────────────────── */
.admin-alert {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-top: 12px;
  display: none;
}
.admin-alert.is-visible { display: block; }
.admin-alert-error   { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.admin-alert-success { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }

/* ── Table ──────────────────────────────────────────────────────────────── */
.admin-table-wrap { overflow-x: auto; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.admin-table th {
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.admin-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: var(--surface-muted); }

.admin-table-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* ── You badge ──────────────────────────────────────────────────────────── */
.badge-you {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 600;
  background: var(--surface-muted);
  color: var(--text-muted);
  margin-left: 6px;
  vertical-align: middle;
}

/* ── Inline password row ────────────────────────────────────────────────── */
.admin-pw-row td { background: var(--surface-muted); }
.admin-pw-form { display: flex; align-items: flex-end; gap: 8px; flex-wrap: wrap; padding: 4px 0; }
.admin-pw-form .admin-input { max-width: 240px; }
.admin-pw-error { font-size: 12px; color: var(--danger); margin-top: 4px; }

/* ── Add User card ──────────────────────────────────────────────────────── */
.add-user-form { display: grid; grid-template-columns: 1fr 1fr auto; gap: 12px; align-items: flex-end; }
@media (max-width: 600px) { .add-user-form { grid-template-columns: 1fr; } }

/* ── Backup & Restore ───────────────────────────────────────────────────── */
.backup-actions {
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.backup-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: minmax(0, 480px);
  gap: 16px;
}

.backup-preview {
  margin-top: 16px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.backup-preview[hidden] {
  display: none;
}

.backup-preview__meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 8px 16px;
  font-size: 13px;
  color: var(--text);
}

.backup-preview__files {
  margin-top: 16px;
}

.backup-file-list {
  list-style: none;
  display: grid;
  gap: 8px;
}

.backup-file-list li {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  font-size: 13px;
}

.admin-checkbox {
  margin-top: 16px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--text);
}

.admin-checkbox input {
  margin-top: 2px;
}

.admin-placeholder {
  color: var(--text-muted);
  font-size: 13px;
}

.analytics-toolbar-card,
.analytics-card {
  margin-top: 16px;
}

.analytics-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.analytics-toolbar__controls,
.analytics-sessions-toolbar {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

.analytics-chip-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.analytics-chip {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-muted);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
}

.analytics-chip.is-active {
  border-color: var(--primary);
  background: rgba(0, 63, 231, 0.08);
  color: var(--primary);
}

.analytics-inner-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 16px 0;
}

.analytics-panel {
  display: none;
}

.analytics-panel.is-active {
  display: block;
}

.analytics-metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.analytics-metric-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg);
  padding: 16px;
}

.analytics-metric-card__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.analytics-metric-card__value {
  margin-top: 6px;
  font-size: 28px;
  font-weight: 700;
  line-height: 1.1;
}

.analytics-metric-card__meta {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

.analytics-trend {
  font-weight: 600;
}

.analytics-trend.is-up {
  color: var(--success);
}

.analytics-trend.is-down {
  color: var(--danger);
}

.analytics-trend.is-neutral {
  color: var(--warning);
}

.analytics-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.analytics-subcopy,
.analytics-error-copy {
  font-size: 13px;
  color: var(--text-muted);
}

.analytics-error-copy {
  color: var(--danger);
}

.analytics-chart-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  min-height: 320px;
  background: var(--surface-muted);
}

.analytics-field {
  min-width: 180px;
}

.analytics-field--grow {
  flex: 1 1 260px;
}

.analytics-table th.is-sortable {
  cursor: pointer;
}

.analytics-table td.is-numeric,
.analytics-table th.is-numeric {
  text-align: right;
}

.analytics-table td.is-muted {
  color: var(--text-muted);
}

.analytics-empty {
  padding: 16px 12px;
  font-size: 13px;
  color: var(--text-muted);
}

.project-groups-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr);
  gap: 16px;
}

.admin-empty {
  padding: 16px 12px;
  font-size: 13px;
  color: var(--text-muted);
}

.admin-status-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
}

.admin-status-badge.is-active {
  background: #ecfdf5;
  color: #166534;
}

.admin-status-badge.is-inactive {
  background: #f3f4f6;
  color: #4b5563;
}

.ts-wrapper {
  min-height: unset;
}

.ts-control {
  padding: 7px 10px;
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text);
  background: var(--bg);
  box-shadow: none;
}

.ts-wrapper.focus .ts-control {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.ts-dropdown {
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 24px rgba(15, 23, 42, .08);
}

.ts-dropdown .option.active {
  background: var(--surface-muted);
  color: var(--text);
}

@media (max-width: 720px) {
  .admin-topbar {
    height: auto;
    padding: 12px 0;
  }

  .admin-topbar__inner {
    padding: 0 16px;
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .admin-tabs {
    padding: 0 16px;
  }

  .admin-tab-panel {
    padding: 16px;
  }

  .project-groups-layout {
    grid-template-columns: 1fr;
  }

  .analytics-toolbar__controls,
  .analytics-sessions-toolbar {
    width: 100%;
  }

  .analytics-field {
    min-width: 0;
    width: 100%;
  }

  .auth-splash__card {
    padding: 28px 24px;
  }
}