/* ============================================================
   AUTH & PAYMENT OVERLAYS
   ============================================================ */
#auth-overlay, #payment-overlay {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg); display: flex; align-items: center; justify-content: center;
}
#payment-overlay { background: rgba(15, 23, 42, 0.9); backdrop-filter: blur(8px); }

.auth-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 24px; padding: 32px; width: 100%; max-width: 420px;
  box-shadow: 0 4px 32px rgba(0,0,0,0.08); text-align: center;
}
.auth-logo {
  font-family: 'Be Vietnam Pro', sans-serif; font-weight: 900; font-size: 28px;
  color: var(--indigo); margin-bottom: 8px; letter-spacing: -0.5px;
}
.auth-logo span { color: var(--text-muted); }
.auth-title { font-size: 20px; font-weight: 800; color: var(--text-primary); margin-bottom: 24px; }
.auth-form-group { text-align: left; margin-bottom: 16px; }
.auth-label { display: block; font-size: 13px; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; }
.auth-input {
  width: 100%; padding: 12px 16px; background: var(--surface-2);
  border: 1.5px solid var(--border); border-radius: 12px; color: var(--text-primary);
  font-family: 'Inter', sans-serif; font-size: 14px; outline: none;
}
.auth-switch { margin-top: 20px; font-size: 13px; color: var(--text-secondary); }
.auth-switch-btn { color: var(--indigo); font-weight: 700; cursor: pointer; background: none; border: none; text-decoration: underline; }
#auth-status { margin-top: 16px; padding: 10px 14px; border-radius: 8px; font-size: 13px; display: none; }
#auth-status.error { background: #fef2f2; color: #991b1b; }
#auth-status.success { background: #ecfdf5; color: #065f46; }