/* ── Auth dialog ── */
.auth-dialog {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.96);
  width: 400px;
  max-width: calc(100vw - 32px);
  background: var(--bg);
  backdrop-filter: var(--blur-xl);
  -webkit-backdrop-filter: var(--blur-xl);
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  z-index: 250;
  padding: 24px;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}

[data-theme="dark"] .auth-dialog {
  background: rgba(10, 10, 10, 0.95);
  border-color: rgba(255, 255, 255, 0.04);
}

.auth-dialog.open {
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

.auth-dialog-header {
  margin-bottom: 6px;
}

.auth-dialog-header h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--fg);
}

.auth-dialog-header p {
  font-size: 14px;
  color: var(--fg-muted);
  margin-top: 4px;
  margin-bottom: 20px;
}

/* Close button */
.auth-close {
  position: absolute;
  top: 12px;
  right: 12px;
}

/* Form */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 14px;
  font-weight: 500;
  color: var(--fg);
}

.form-group input {
  padding: 10px 14px;
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: var(--radius);
  background: var(--secondary);
  opacity: 0.5;
  color: var(--fg);
  font-size: 15px;
  font-family: var(--font);
  outline: none;
  transition: border-color var(--transition-fast), opacity var(--transition-fast);
}

[data-theme="dark"] .form-group input {
  border-color: rgba(255, 255, 255, 0.04);
}

.form-group input:focus {
  border-color: var(--border-focus);
  opacity: 1;
}

.auth-form .btn-primary {
  width: 100%;
  justify-content: center;
  padding: 10px;
  font-size: 14px;
  margin-top: 4px;
}

/* Error */
.auth-error {
  padding: 8px 12px;
  border-radius: var(--radius);
  background: rgba(239, 68, 68, 0.1);
  color: var(--destructive);
  font-size: 14px;
  display: none;
}

.auth-error.visible { display: block; }

/* Toggle */
.auth-toggle {
  text-align: center;
  margin-top: 16px;
  font-size: 14px;
  color: var(--fg-muted);
}

.auth-toggle a {
  color: var(--fg);
  text-decoration: none;
  font-weight: 500;
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.auth-toggle a:hover { opacity: 0.7; }