/* ================================================
   LOGIN FORM RESPONSIVE STYLES
   Mobile-first responsive design for authentication
   Compatible with Unified Dark Theme v2.0
   ================================================ */

/* Base mobile-first styles */
.responsive-auth-container {
  width: 100%;
  max-width: 100%;
  padding: var(--space-6);
  margin: 0 auto;
  position: relative;
  z-index: 10; /* Ensure form is above header on mobile */
}

/* Ensure form elements are clickable even when header is fixed */
@media (max-width: 768px) {
  .responsive-auth-container {
    padding-top: calc(var(--space-6) + 80px); /* Account for fixed header */
  }
  
  /* Ensure form buttons and inputs have proper stacking context */
  .form-responsive button,
  .form-responsive input,
  .form-responsive .auth-links button {
    position: relative;
    z-index: 20;
  }
}

.form-responsive {
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
}

.form-group-responsive {
  margin-bottom: var(--space-6);
}

/* Mobile optimizations (320px - 639px) */
@media (max-width: 639px) {
  .responsive-auth-container {
    padding: var(--space-4);
    margin-top: var(--space-8);
    margin-bottom: var(--space-8);
  }

  .form-responsive {
    max-width: 100%;
  }

  .form-group-responsive {
    margin-bottom: var(--space-4);
  }

  /* Ensure form inputs are mobile-friendly */
  .input-responsive {
    font-size: 16px !important; /* Prevents zoom on iOS */
    padding: var(--space-3) var(--space-4);
    min-height: 48px;
  }

  /* Touch-friendly buttons */
  .btn-responsive {
    min-height: 48px;
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-sm);
  }

  /* Responsive typography for form elements */
  .form-label.text-responsive--small {
    font-size: var(--text-sm);
    margin-bottom: var(--space-2);
  }

  .error-message.text-responsive--caption {
    font-size: var(--text-xs);
    margin-top: var(--space-1);
  }

  /* Checkbox improvements for mobile */
  .checkbox-container.touch-target {
    min-height: 44px;
    padding: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }

  .remember-checkbox {
    width: 20px;
    height: 20px;
  }

  .checkbox-label.text-responsive--small {
    font-size: var(--text-sm);
  }

  /* Auth links improvements */
  .auth-links.space-y-2 {
    margin-top: var(--space-6);
  }

  .auth-links button.touch-focus {
    min-height: 44px;
    padding: var(--space-2) 0;
    font-size: var(--text-sm);
  }
}

/* Tablet optimizations (640px - 1023px) */
@media (min-width: 640px) and (max-width: 1023px) {
  .responsive-auth-container {
    padding: var(--space-8);
    max-width: 480px;
  }

  .form-responsive {
    max-width: 100%;
  }

  .form-group-responsive {
    margin-bottom: var(--space-5);
  }

  .input-responsive {
    padding: var(--space-3) var(--space-5);
    min-height: 44px;
  }

  .btn-responsive {
    min-height: 44px;
    padding: var(--space-3) var(--space-8);
  }
}

/* Desktop optimizations (1024px+) */
@media (min-width: 1024px) {
  .responsive-auth-container {
    padding: var(--space-12);
    max-width: 520px;
  }

  .form-responsive {
    max-width: 100%;
  }

  .form-group-responsive {
    margin-bottom: var(--space-6);
  }

  .input-responsive {
    padding: var(--space-4) var(--space-5);
    min-height: 48px;
  }

  .btn-responsive {
    min-height: 48px;
    padding: var(--space-4) var(--space-10);
  }
}

/* Large desktop optimizations (1280px+) */
@media (min-width: 1280px) {
  .responsive-auth-container {
    padding: var(--space-16);
    max-width: 560px;
  }

  .input-responsive {
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-base);
  }

  .btn-responsive {
    padding: var(--space-4) var(--space-12);
    font-size: var(--text-base);
  }
}

/* Ultra-wide optimizations (1536px+) */
@media (min-width: 1536px) {
  .responsive-auth-container {
    padding: var(--space-20);
    max-width: 600px;
  }

  .input-responsive {
    padding: var(--space-5) var(--space-6);
    font-size: var(--text-lg);
  }

  .btn-responsive {
    padding: var(--space-5) var(--space-14);
    font-size: var(--text-lg);
  }
}

/* Portrait mobile optimizations */
@media (max-width: 767px) and (orientation: portrait) {
  .responsive-auth-container {
    padding: var(--space-6) var(--space-4);
    margin-top: var(--space-12);
  }

  /* Ensure forms are easily accessible in portrait mode */
  .form-responsive {
    margin-bottom: var(--space-8);
  }
}

/* Landscape mobile optimizations */
@media (max-width: 767px) and (orientation: landscape) {
  .responsive-auth-container {
    padding: var(--space-4);
    margin-top: var(--space-6);
    margin-bottom: var(--space-6);
  }

  .form-responsive {
    max-width: 380px;
  }

  /* Adjust for smaller landscape height */
  .form-group-responsive {
    margin-bottom: var(--space-3);
  }

  .input-responsive {
    padding: var(--space-2) var(--space-3);
    min-height: 40px;
  }
}

/* iOS-specific fixes */
@supports (-webkit-touch-callout: none) {
  .responsive-auth-container {
    padding-top: env(safe-area-inset-top, var(--space-6));
    padding-bottom: env(safe-area-inset-bottom, var(--space-6));
    padding-left: env(safe-area-inset-left, var(--space-4));
    padding-right: env(safe-area-inset-right, var(--space-4));
  }

  .input-responsive.ios-input-fix {
    font-size: 16px !important;
    transform: translateZ(0);
  }
}

/* Android-specific fixes */
@supports (not (-webkit-touch-callout: none)) and (not (-moz-appearance: none)) {
  .responsive-auth-container .android-fix {
    -webkit-tap-highlight-color: transparent;
  }
}

/* High contrast mode support */
@media (forced-colors: active) {
  .responsive-auth-container {
    border: 2px solid CanvasText;
  }

  .input-responsive {
    border: 2px solid CanvasText;
  }

  .btn-responsive {
    border: 2px solid CanvasText;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .responsive-auth-container *,
  .responsive-auth-container *::before,
  .responsive-auth-container *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }
}

/* Print styles */
@media print {
  .responsive-auth-container {
    background: white !important;
    color: black !important;
    border: 1px solid black !important;
  }

  .btn-responsive {
    background: white !important;
    color: black !important;
    border: 2px solid black !important;
  }
}

/* Focus management for mobile */
@media (max-width: 767px) {
  .responsive-auth-container .touch-focus:focus-visible {
    outline: 3px solid var(--accent-primary);
    outline-offset: 2px;
  }

  .responsive-auth-container .touch-focus:focus {
    outline: 3px solid var(--accent-primary);
    outline-offset: 2px;
  }
}

/* Loading state responsive improvements */
.responsive-auth-container .loading-spinner {
  width: 16px;
  height: 16px;
}

@media (min-width: 768px) {
  .responsive-auth-container .loading-spinner {
    width: 20px;
    height: 20px;
  }
}

/* Error state responsive improvements */
.responsive-auth-container .error-message {
  word-wrap: break-word;
  word-break: break-word;
}

@media (max-width: 479px) {
  .responsive-auth-container .error-message {
    font-size: var(--text-xs);
  }
}