/*
 * RailsSimpleAuth - Base Styles
 *
 * This CSS uses CSS custom properties (variables) for easy theming.
 * Override these variables in your own stylesheet to customize colors.
 *
 * Example:
 *   :root {
 *     --rsa-color-primary: #22c55e;
 *     --rsa-color-background-form: #ffffff;
 *   }
 */

/* ============================================================================
   Base Reset
   ============================================================================ */

.rsa-auth-form *,
.rsa-auth-form *::before,
.rsa-auth-form *::after {
  box-sizing: border-box;
}

/* ============================================================================
   CSS Variables (Override these to customize)
   ============================================================================ */

:root {
  /* Primary Colors */
  --rsa-color-primary: #4f46e5;
  --rsa-color-primary-hover: #4338ca;
  --rsa-color-primary-light: #eef2ff;

  /* Background Colors */
  --rsa-color-background: #f8fafc;
  --rsa-color-background-form: #ffffff;
  --rsa-color-surface: #f1f5f9;
  --rsa-color-surface-hover: #e2e8f0;

  /* Text Colors */
  --rsa-color-text: #475569;
  --rsa-color-text-muted: #64748b;
  --rsa-color-text-dark: #0f172a;

  /* Border Colors */
  --rsa-color-border: #e2e8f0;
  --rsa-color-border-form: #cbd5e1;

  /* Semantic Colors */
  --rsa-color-danger: #dc2626;
  --rsa-color-danger-hover: #b91c1c;
  --rsa-color-success: #16a34a;
  --rsa-color-white: #ffffff;

  /* Focus Ring */
  --rsa-color-focus-ring: rgba(79, 70, 229, 0.4);

  /* OAuth Provider Colors */
  --rsa-color-google: #4285f4;
  --rsa-color-google-bg: #f0f7ff;
  --rsa-color-github: #24292e;
  --rsa-color-github-bg: #f6f8fa;

  /* Spacing */
  --rsa-space-1: 0.25rem;
  --rsa-space-2: 0.5rem;
  --rsa-space-3: 0.75rem;
  --rsa-space-4: 1rem;
  --rsa-space-5: 1.25rem;
  --rsa-space-6: 1.5rem;
  --rsa-space-8: 2rem;
  --rsa-space-10: 2.5rem;

  /* Border Radius */
  --rsa-radius-sm: 0.375rem;
  --rsa-radius-md: 0.5rem;
  --rsa-radius-lg: 0.75rem;
  --rsa-radius-xl: 1rem;
  --rsa-radius-full: 9999px;

  /* Shadows */
  --rsa-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --rsa-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --rsa-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --rsa-shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Border Width */
  --rsa-border-thin: 1px;

  /* Font */
  --rsa-font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* ============================================================================
   Container
   ============================================================================ */

.rsa-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 80vh;
  padding: var(--rsa-space-4);
}

/* ============================================================================
   Auth Form
   ============================================================================ */

.rsa-auth-form {
  padding: var(--rsa-space-8);
  border-radius: var(--rsa-radius-xl);
  border: var(--rsa-border-thin) solid var(--rsa-color-border);
  width: 100%;
  max-width: 400px;
  background-color: var(--rsa-color-background-form);
}

.rsa-auth-form > * {
  width: 100%;
}

.rsa-auth-form__title {
  margin-bottom: var(--rsa-space-2);
  font-size: 1.5rem;
  font-weight: 600;
  text-align: center;
  color: var(--rsa-color-text-dark);
}

.rsa-auth-form__description {
  margin-bottom: var(--rsa-space-6);
  font-size: 0.875rem;
  text-align: center;
  color: var(--rsa-color-text-muted);
}

.rsa-auth-form__form {
  display: block;
  width: 100%;
}

.rsa-auth-form__form > * {
  width: 100%;
}

/* ============================================================================
   Form Groups
   ============================================================================ */

.rsa-auth-form__group {
  margin-bottom: var(--rsa-space-4);
}

.rsa-auth-form__label {
  display: block;
  color: var(--rsa-color-text);
  margin-bottom: var(--rsa-space-1);
  font-size: 0.875rem;
  font-weight: 500;
}

.rsa-auth-form__input {
  appearance: none;
  border: var(--rsa-border-thin) solid var(--rsa-color-border-form);
  border-radius: var(--rsa-radius-md);
  width: 100%;
  padding: var(--rsa-space-2) var(--rsa-space-3);
  color: var(--rsa-color-text-dark);
  background-color: var(--rsa-color-white);
  font-size: 1rem;
  line-height: 1.5;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.rsa-auth-form__input:focus {
  outline: none;
  border-color: var(--rsa-color-primary);
  box-shadow: 0 0 0 3px var(--rsa-color-focus-ring);
}

.rsa-auth-form__input--error {
  border-color: var(--rsa-color-danger);
}

.rsa-auth-form__input--error:focus {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.25);
}

.rsa-auth-form__hint {
  font-size: 0.75rem;
  color: var(--rsa-color-text-muted);
  margin-top: var(--rsa-space-1);
}

.rsa-auth-form__error {
  color: var(--rsa-color-danger);
  font-size: 0.875rem;
  margin-top: var(--rsa-space-1);
}

/* ============================================================================
   Actions
   ============================================================================ */

.rsa-auth-form__actions {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  margin-top: var(--rsa-space-6);
  width: 100%;
}

.rsa-auth-form__submit {
  width: 100%;
  font-weight: 600;
  padding: var(--rsa-space-3) var(--rsa-space-4);
  border: none;
  border-radius: var(--rsa-radius-md);
  background-color: var(--rsa-color-primary);
  color: var(--rsa-color-white);
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.15s ease-in-out;
}

.rsa-auth-form__submit:hover {
  background-color: var(--rsa-color-primary-hover);
}

.rsa-auth-form__submit:focus {
  outline: none;
  box-shadow: 0 0 0 3px var(--rsa-color-focus-ring);
}

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

/* ============================================================================
   Separator
   ============================================================================ */

.rsa-auth-form__separator {
  display: flex;
  align-items: center;
  margin: var(--rsa-space-6) 0;
  width: 100%;
  color: var(--rsa-color-text-muted);
  font-size: 0.875rem;
}

.rsa-auth-form__separator::before,
.rsa-auth-form__separator::after {
  content: "";
  flex-grow: 1;
  height: 1px;
  background-color: var(--rsa-color-border);
  margin: 0 var(--rsa-space-3);
}

/* ============================================================================
   Magic Link Button
   ============================================================================ */

.rsa-auth-form__magic-link-button {
  display: block;
  width: 100%;
  padding: var(--rsa-space-3) var(--rsa-space-4);
  border: var(--rsa-border-thin) solid var(--rsa-color-primary);
  border-radius: var(--rsa-radius-md);
  background-color: transparent;
  color: var(--rsa-color-primary);
  text-decoration: none;
  font-weight: 500;
  text-align: center;
  transition: all 0.15s ease-in-out;
}

.rsa-auth-form__magic-link-button:hover {
  background-color: var(--rsa-color-primary);
  color: var(--rsa-color-white);
}

/* ============================================================================
   OAuth
   ============================================================================ */

.rsa-auth-form__oauth {
  margin-top: var(--rsa-space-4);
}

.rsa-auth-form__oauth-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--rsa-space-3);
}

.rsa-auth-form__oauth-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--rsa-space-3);
  padding: var(--rsa-space-3) var(--rsa-space-4);
  border: var(--rsa-border-thin) solid var(--rsa-color-border);
  border-radius: var(--rsa-radius-md);
  background-color: var(--rsa-color-white);
  color: var(--rsa-color-text-dark);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.15s ease-in-out;
}

.rsa-auth-form__oauth-button:hover {
  background-color: var(--rsa-color-surface-hover);
}

.rsa-auth-form__oauth-button--google:hover {
  border-color: var(--rsa-color-google);
  background-color: var(--rsa-color-google-bg);
}

.rsa-auth-form__oauth-button--github:hover {
  border-color: var(--rsa-color-github);
  background-color: var(--rsa-color-github-bg);
}

.rsa-auth-form__oauth-icon {
  width: 1.25rem;
  height: 1.25rem;
}

/* ============================================================================
   Links
   ============================================================================ */

.rsa-auth-form__links {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--rsa-space-6);
  flex-wrap: wrap;
  gap: var(--rsa-space-2);
}

.rsa-auth-form__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--rsa-color-text-dark);
  text-decoration: none;
}

.rsa-auth-form__link:hover {
  text-decoration: underline;
  color: var(--rsa-color-primary);
}

.rsa-auth-form__link--right {
  margin-left: auto;
}

/* ============================================================================
   Responsive
   ============================================================================ */

@media (max-width: 480px) {
  .rsa-auth-form {
    padding: var(--rsa-space-6);
    border: none;
    border-radius: 0;
  }

  .rsa-container {
    padding: 0;
  }
}