* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: #f5f6f8; color: #111827; line-height: 1.5;
}
a { color: #2563eb; text-decoration: none; }

/* Login screen */
.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.auth-card { background: #fff; border-radius: 12px; padding: 32px; width: 100%; max-width: 380px; box-shadow: 0 2px 20px rgba(0,0,0,0.08); }
.auth-card h1 { font-size: 20px; margin-bottom: 4px; }
.auth-card p.sub { color: #6b7280; font-size: 13px; margin-bottom: 20px; }
.auth-tabs { display: flex; gap: 8px; margin-bottom: 20px; }
.auth-tab { flex: 1; text-align: center; padding: 8px; border-radius: 8px; background: #f3f4f6; cursor: pointer; font-size: 13px; font-weight: 600; color: #6b7280; }
.auth-tab.active { background: #111827; color: #fff; }

/* Layout */
.app-shell { display: flex; min-height: 100vh; }
.sidebar { width: 220px; background: #111827; color: #fff; padding: 20px 0; flex-shrink: 0; }
.sidebar h2 { padding: 0 20px 16px; font-size: 16px; }
.sidebar nav a { display: block; padding: 10px 20px; color: #d1d5db; font-size: 14px; }
.sidebar nav a.active, .sidebar nav a:hover { background: #1f2937; color: #fff; }
.sidebar .logout { position: absolute; bottom: 20px; padding: 0 20px; }
.main { flex: 1; padding: 28px 32px; max-width: 1000px; }
.main h1 { font-size: 22px; margin-bottom: 6px; }
.main .sub { color: #6b7280; font-size: 14px; margin-bottom: 24px; }

/* Cards / forms */
.card { background: #fff; border-radius: 12px; padding: 20px; margin-bottom: 20px; box-shadow: 0 1px 4px rgba(0,0,0,0.05); }
.card h3 { font-size: 15px; margin-bottom: 14px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 5px; color: #374151; }
.field input, .field select, .field textarea {
  width: 100%; padding: 9px 12px; border: 1px solid #d1d5db; border-radius: 8px; font-size: 14px;
}
.btn { padding: 10px 18px; border: none; border-radius: 8px; background: #111827; color: #fff; font-weight: 600; font-size: 14px; cursor: pointer; }
.btn:hover { background: #1f2937; }
.btn.secondary { background: #fff; border: 1px solid #d1d5db; color: #111827; }
.btn.danger { background: #dc2626; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-sm { padding: 6px 10px; font-size: 12px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid #f0f1f3; }
th { color: #6b7280; font-weight: 600; font-size: 12px; text-transform: uppercase; }
.badge { display: inline-block; padding: 3px 8px; border-radius: 999px; font-size: 11px; font-weight: 700; }
.badge.active { background: #dcfce7; color: #166534; }
.badge.inactive, .badge.suspended { background: #fee2e2; color: #991b1b; }
.badge.pending { background: #fef9c3; color: #854d0e; }
.badge.confirmed { background: #dbeafe; color: #1e40af; }
.badge.completed { background: #dcfce7; color: #166534; }
.badge.cancelled { background: #f3f4f6; color: #6b7280; }

.msg { padding: 10px 14px; border-radius: 8px; font-size: 13px; margin-bottom: 14px; }
.msg.error { background: #fee2e2; color: #991b1b; }
.msg.success { background: #dcfce7; color: #166534; }
.hidden { display: none !important; }
.embed-box { background: #0b1120; color: #a5f3fc; padding: 14px; border-radius: 8px; font-family: monospace; font-size: 12px; white-space: pre-wrap; word-break: break-all; }
.muted { color: #6b7280; font-size: 13px; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }