/* ============================================
   Стили страницы авторизации (auth.html)
   ============================================ */

.auth-page {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: calc(100vh - 200px);
  padding: var(--space-xl) var(--container-padding);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  padding: var(--space-2xl);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-glass);
}

.auth-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.auth-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
  color: var(--accent);
}

.auth-icon svg {
  width: 100%;
  height: 100%;
}

.auth-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.auth-subtitle {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.auth-form .form-group {
  margin-bottom: var(--space-md);
}

.auth-form label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.auth-form input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-white);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.auth-form input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.auth-form input#auth-code {
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.5em;
  font-family: var(--font-mono);
}

.btn-full {
  width: 100%;
  padding: 0.875rem;
  font-size: 1rem;
  font-weight: 600;
}

.auth-hint {
  margin-top: var(--space-md);
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.5;
}

.auth-code-info {
  text-align: center;
  margin-bottom: var(--space-lg);
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.auth-code-info strong {
  color: var(--text-primary);
}

.auth-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-md);
  gap: var(--space-sm);
}

.btn-link {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  padding: 0;
  transition: color var(--transition-fast);
}

.btn-link:hover {
  color: var(--accent-hover);
}

.btn-link:disabled {
  color: var(--text-muted);
  cursor: not-allowed;
}

.auth-error {
  margin-top: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: var(--radius-sm);
  color: var(--error);
  font-size: 0.875rem;
  text-align: center;
}

.hidden {
  display: none !important;
}

/* Loading state */
.btn-primary.loading {
  pointer-events: none;
  opacity: 0.7;
}

.btn-primary.loading::after {
  content: '';
  display: inline-block;
  width: 16px;
  height: 16px;
  margin-left: 8px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
}

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

/* Mobile */
@media (max-width: 480px) {
  .auth-card {
    padding: var(--space-lg);
  }

  .auth-header h1 {
    font-size: 1.25rem;
  }

  .auth-actions {
    flex-direction: column;
    gap: var(--space-sm);
  }
}