/* ===== Auth Pages ===== */

.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--header-height) - 80px);
  padding: 40px 24px;
  background: var(--color-bg-alt);
  background-image: radial-gradient(circle, var(--color-border) 1px, transparent 1px);
  background-size: 20px 20px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 40px;
  animation: authIn 0.3s ease;
}

.auth-card--wide {
  max-width: 640px;
}

@keyframes authIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.auth-header {
  text-align: center;
  margin-bottom: 32px;
}

.auth-logo {
  margin-bottom: 16px;
}

.auth-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 6px;
}

.auth-subtitle {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.auth-field label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.auth-field input {
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition);
}

.auth-field input:focus {
  border-color: var(--color-border-focus);
}

.auth-input-disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.auth-submit {
  width: 100%;
  margin-top: 4px;
  position: relative;
}

.auth-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.btn-spinner {
  position: absolute;
}

.auth-error {
  font-size: 0.8125rem;
  color: var(--color-danger);
  background: #fef2f2;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid #fecaca;
}

.auth-success {
  font-size: 0.8125rem;
  color: #166534;
  background: #f0fdf4;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid #bbf7d0;
}

.auth-links {
  text-align: center;
  margin-top: 24px;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.auth-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  cursor: pointer;
}

.auth-link:hover {
  text-decoration: underline;
}

.auth-link-sep {
  margin: 0 8px;
  color: var(--color-border);
}

.auth-link-text {
  margin-right: 4px;
}

.auth-loading {
  text-align: center;
  padding: 40px;
  color: var(--color-text-light);
  font-size: 0.9375rem;
}

/* ===== Account Page ===== */

.account-section {
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.account-section:last-of-type {
  border-bottom: none;
}

.account-avatar-section {
  display: flex;
  align-items: center;
  gap: 16px;
}

.account-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}

.account-avatar svg {
  width: 32px;
  height: 32px;
  color: var(--color-primary);
}

.account-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.account-plan {
  display: flex;
  align-items: center;
  gap: 12px;
}

.account-plan-badge {
  display: inline-flex;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.account-plan-label {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.account-actions {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.account-actions .btn {
  flex: 1;
}

/* ===== Billing Page ===== */

.billing-plans {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.billing-plan {
  padding: 24px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  text-align: center;
  transition: all var(--transition);
}

.billing-plan:hover {
  border-color: var(--color-primary-light);
}

.billing-plan--active {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.billing-plan-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.billing-plan-price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 16px;
}

.billing-plan-price span {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-light);
}

.billing-plan-features {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
  text-align: left;
}

.billing-plan-features li {
  padding: 4px 0;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.billing-plan-features li::before {
  content: '✓';
  color: var(--color-success);
  font-weight: 700;
  margin-right: 8px;
}

.billing-plan-current {
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--color-primary);
  color: #fff;
  display: inline-block;
}

.billing-upgrade-btn {
  width: 100%;
}

.billing-info {
  padding: 16px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.billing-info code {
  background: var(--color-border);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.75rem;
}

.billing-actions {
  margin-bottom: 16px;
}

.billing-manage-btn {
  width: 100%;
}

/* ===== Billing Verification ===== */

.billing-verify {
  text-align: center;
  padding: 48px 24px;
}

.billing-verify-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: billingSpin 0.8s linear infinite;
  margin: 0 auto 20px;
}

@keyframes billingSpin {
  to { transform: rotate(360deg); }
}

.billing-verify-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.billing-verify-text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

.billing-verify-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.billing-verify-icon--error {
  background: #fef2f2;
  color: var(--color-danger);
}

.billing-verify-icon--error svg {
  width: 28px;
  height: 28px;
}

.billing-verify-btn {
  margin-top: 24px;
}