:root {
  --color-bg: #f6f7fb;
  --color-surface: #ffffff;
  --color-border: #e2e5ec;
  --color-text: #1a1d29;
  --color-text-muted: #656b7a;
  --color-primary: #2952e3;
  --color-primary-dark: #1e3fb8;
  --color-danger: #d13438;
  --color-danger-bg: #fdecec;
  --color-success: #157347;
  --color-success-bg: #e9f7ef;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(20, 22, 35, 0.08), 0 1px 2px rgba(20, 22, 35, 0.06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

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

.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-text);
}

.auth-brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--color-primary);
  display: inline-block;
}

.auth-card h1 {
  font-size: 1.4rem;
  margin: 0 0 6px;
}

.auth-subtitle {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  margin: 0 0 24px;
}

.field { margin-bottom: 18px; }

.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.95rem;
  background: #fff;
  color: var(--color-text);
}

.field input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(41, 82, 227, 0.15);
}

.field-error {
  color: var(--color-danger);
  font-size: 0.82rem;
  margin-top: 6px;
}

.btn {
  display: inline-block;
  width: 100%;
  padding: 11px 16px;
  border-radius: 6px;
  border: none;
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  text-align: center;
}

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

.auth-footer {
  margin-top: 20px;
  font-size: 0.88rem;
  color: var(--color-text-muted);
  text-align: center;
}

.alert {
  padding: 12px 14px;
  border-radius: 6px;
  font-size: 0.88rem;
  margin-bottom: 18px;
}

.alert-error { background: var(--color-danger-bg); color: var(--color-danger); }
.alert-success { background: var(--color-success-bg); color: var(--color-success); }

/* App shell (dashboards) */
.app-shell { min-height: 100vh; display: flex; }

.app-sidebar {
  width: 220px;
  background: #14172b;
  color: #cfd3e6;
  padding: 20px 16px;
  flex-shrink: 0;
}

.app-sidebar .brand {
  color: #fff;
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 24px;
  display: block;
}

.app-sidebar nav a {
  display: block;
  color: #cfd3e6;
  padding: 9px 10px;
  border-radius: 6px;
  font-size: 0.9rem;
  margin-bottom: 2px;
}

.app-sidebar nav a:hover { background: rgba(255,255,255,0.08); text-decoration: none; }

.app-main { flex: 1; padding: 28px 36px; }

.app-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.app-topbar h1 { font-size: 1.4rem; margin: 0; }

.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: #eef0f7;
  color: var(--color-text-muted);
}

.badge-role { background: #e7ecfd; color: var(--color-primary-dark); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

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

.stat-card .label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

.stat-card .value { font-size: 1.6rem; font-weight: 700; }

.panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

form.inline-logout { display: inline; }

.btn-link {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  cursor: pointer;
  padding: 0;
}

.btn-link:hover { color: var(--color-text); text-decoration: underline; }

/* Buttons */
.btn-sm { width: auto; padding: 7px 14px; font-size: 0.85rem; }
.btn-secondary { background: #fff; color: var(--color-text); border: 1px solid var(--color-border); }
.btn-secondary:hover { background: #f2f3f7; }
.btn-danger { background: var(--color-danger); }
.btn-danger:hover { background: #b32b2e; }
.btn-row { display: flex; gap: 10px; margin-top: 8px; }
.btn-row .btn { width: auto; }

/* Forms (non-auth pages) */
.panel form .field { margin-bottom: 16px; }
.panel form select, .panel form textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.92rem;
  background: #fff;
  color: var(--color-text);
  font-family: inherit;
}
.field-hint { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 4px; }
.checkbox-field { display: flex; align-items: center; gap: 8px; }
.checkbox-field input { width: auto; }
.checkbox-field label { margin: 0; font-weight: 400; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }

/* Tables */
.table-wrap { overflow-x: auto; }
table.data-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
table.data-table th {
  text-align: left;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border);
}
table.data-table td {
  padding: 12px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
table.data-table tr:last-child td { border-bottom: none; }
table.data-table tr:hover td { background: #fafbfd; }

.badge-active { background: var(--color-success-bg); color: var(--color-success); }
.badge-suspended, .badge-cancelled { background: var(--color-danger-bg); color: var(--color-danger); }
.badge-pending, .badge-past_due { background: #fff6e0; color: #8a6300; }

.panel-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.panel-header h2 { margin: 0; font-size: 1.1rem; }
.panel + .panel { margin-top: 20px; }

.empty-state { color: var(--color-text-muted); font-size: 0.9rem; padding: 24px 0; text-align: center; }

.search-bar { display: flex; gap: 10px; margin-bottom: 18px; }
.search-bar input, .search-bar select {
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.9rem;
}
.search-bar input { flex: 1; }

.detail-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 4px; }
.detail-grid .label { font-size: 0.78rem; color: var(--color-text-muted); margin-bottom: 3px; }
.detail-grid .value { font-size: 0.95rem; font-weight: 600; }

.text-muted { color: var(--color-text-muted); }
.text-sm { font-size: 0.85rem; }
code.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; background: #f2f3f7; padding: 1px 6px; border-radius: 4px; font-size: 0.85em; }