/**
 * Login System Styles
 * Complete, self-contained styling for the Hyve SFTP login widget.
 * Mobile-first responsive design with accessibility support.
 */

/* ============================================================
   CSS CUSTOM PROPERTIES (LOCAL SCOPE)
   ============================================================ */
.login-page {
  /* Colors */
  --login-bg: #0a0a0a;
  --login-card-bg: #111111;
  --login-card-border: #222222;
  --login-input-bg: #1a1a1a;
  --login-input-border: #333333;
  --login-input-focus: #8ac53f;
  --login-text: #ffffff;
  --login-text-muted: #888888;
  --login-text-placeholder: #666666;
  --login-brand: #8ac53f;
  --login-brand-hover: #9ed855;
  --login-error: #ef4444;
  --login-error-bg: rgba(239, 68, 68, 0.1);
  --login-success: #22c55e;
  --login-success-bg: rgba(34, 197, 94, 0.1);
  --login-warning: #f59e0b;
  --login-info: #3b82f6;
  
  /* Spacing */
  --login-space-1: 4px;
  --login-space-2: 8px;
  --login-space-3: 12px;
  --login-space-4: 16px;
  --login-space-5: 20px;
  --login-space-6: 24px;
  --login-space-8: 32px;
  --login-space-10: 40px;
  --login-space-12: 48px;
  
  /* Typography */
  --login-font-family: 'PT Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --login-font-size-xs: 12px;
  --login-font-size-sm: 14px;
  --login-font-size-base: 16px;
  --login-font-size-lg: 18px;
  --login-font-size-xl: 20px;
  --login-font-size-2xl: 24px;
  --login-font-size-3xl: 30px;
  --login-font-size-4xl: 36px;
  
  /* Borders */
  --login-radius: 0;
  --login-radius-lg: 0;
  
  /* Shadows */
  --login-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --login-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
  
  /* Transitions */
  --login-transition: 0.15s ease-in-out;
}

/* ============================================================
   BASE LAYOUT
   ============================================================ */
html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
}

.login-page {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--login-bg);
  font-family: var(--login-font-family);
  color: var(--login-text);
  overflow-y: auto;
  overflow-x: hidden;
}

.login-background {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.1)),
    url('/static/images/Login%20Screen%20-%20Client.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 0;
}

.login-container {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column; /* Stack vertically on mobile */
  box-sizing: border-box;
  width: 100%;
  max-width: 1200px;
  padding: 16px; /* 16px side margins on mobile */
  gap: 56px; /* 56px gap on mobile */
  align-items: center;
  justify-content: flex-start; /* Align to top on mobile */
  padding-top: 80px; /* 80px from top on mobile */
}

/* ============================================================
   BRAND COLUMN (LEFT)
   ============================================================ */
.login-brand {
  flex: 1;
  max-width: 500px;
}

/* Mobile: Show brand above form */
@media (max-width: 767px) {
  .login-brand {
    text-align: center;
    margin-bottom: 0; /* Remove margin, gap handles spacing */
    flex: 0 0 auto; /* Don't grow/shrink */
  }
  
  .login-brand-logo {
    margin-left: auto;
    margin-right: auto;
  }
  
  .login-brand-title {
    font-size: var(--login-font-size-2xl);
  }
  
  .login-brand-subtitle {
    display: none; /* Hide subtext on mobile */
  }
  
  .login-form-column {
    flex: 0 0 auto; /* Don't grow/shrink */
  }
  
  .login-form-wrapper {
    padding-top: var(--login-space-5); /* Only top padding on mobile */
  }
}

.login-brand-logo {
  height: 80px;
  width: auto;
  max-width: 240px;
  object-fit: contain;
  margin-bottom: var(--login-space-6);
}

.login-brand-title {
  font-size: var(--login-font-size-4xl);
  font-weight: 700;
  color: var(--login-text);
  line-height: 1.1;
  margin: 0 0 var(--login-space-4) 0;
}

.login-brand-subtitle {
  font-size: var(--login-font-size-lg);
  color: var(--login-text-muted);
  line-height: 1.6;
  margin: 0;
}

/* ============================================================
   FORM COLUMN (RIGHT)
   ============================================================ */
.login-form-column {
  flex: 0 0 auto;
  width: 100%;
  max-width: 550px;
}

.login-card {
  background: var(--login-card-bg);
  border: 1px solid var(--login-card-border);
  border-radius: var(--login-radius-lg);
  box-shadow: var(--login-shadow-lg);
  overflow: hidden;
}

/* ============================================================
   TABS
   ============================================================ */
.login-tabs {
  display: flex;
  border-bottom: 1px solid var(--login-card-border);
  background: rgba(0, 0, 0, 0.2);
}

.login-tab {
  flex: 1;
  padding: var(--login-space-4) var(--login-space-5);
  background: transparent;
  border: none;
  color: var(--login-text-muted);
  font-family: var(--login-font-family);
  font-size: var(--login-font-size-base);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--login-transition);
  position: relative;
  text-align: center;
}

.login-tab:hover {
  color: var(--login-text);
  background: rgba(255, 255, 255, 0.02);
}

.login-tab:focus {
  outline: none;
}

.login-tab:focus-visible {
  outline: 2px solid var(--login-brand);
  outline-offset: -2px;
}

.login-tab[aria-selected="true"] {
  color: var(--login-brand);
}

.login-tab[aria-selected="true"]::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--login-brand);
}

/* ============================================================
   FORM CONTENT
   ============================================================ */
.login-form-wrapper {
  padding: var(--login-space-8);
}

.login-form-title {
  font-size: var(--login-font-size-2xl);
  font-weight: 700;
  color: var(--login-text);
  margin: 0 0 var(--login-space-6) 0;
}

/* ============================================================
   ERROR BANNER
   ============================================================ */
.login-error-banner {
  display: none;
  background: var(--login-error-bg);
  border: 1px solid var(--login-error);
  border-radius: var(--login-radius);
  padding: var(--login-space-4);
  margin-bottom: var(--login-space-6);
  animation: slideDown 0.3s ease-out;
}

.login-error-banner.is-visible {
  display: block;
}

.login-error-banner.is-success {
  background: var(--login-success-bg);
  border-color: var(--login-success);
}

.login-error-banner.is-warning {
  background: rgba(251, 191, 36, 0.1);
  border-color: #fbbf24;
}

.login-error-content {
  display: flex;
  align-items: flex-start;
  gap: var(--login-space-3);
}

.login-error-icon {
  flex-shrink: 0;
  font-size: var(--login-font-size-lg);
  color: var(--login-error);
  margin-top: 2px;
}

.login-error-banner.is-success .login-error-icon {
  color: var(--login-success);
}

.login-error-banner.is-warning .login-error-icon {
  color: #fbbf24;
}

.login-error-text {
  flex: 1;
}

.login-error-message {
  font-weight: 600;
  color: var(--login-error);
  margin: 0;
}

.login-error-banner.is-success .login-error-message {
  color: var(--login-success);
}

.login-error-banner.is-warning .login-error-message {
  color: #fbbf24;
}

.login-error-details {
  font-size: var(--login-font-size-sm);
  color: var(--login-text-muted);
  margin: var(--login-space-1) 0 0 0;
}

.login-error-close {
  flex-shrink: 0;
  background: none;
  border: none;
  color: var(--login-text-muted);
  cursor: pointer;
  padding: var(--login-space-1);
  font-size: var(--login-font-size-base);
  transition: color var(--login-transition);
}

.login-error-close:hover {
  color: var(--login-text);
}

.login-error-retry {
  display: none;
  margin-top: var(--login-space-2);
  padding-top: var(--login-space-2);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--login-font-size-sm);
  color: var(--login-text-muted);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================
   FORM FIELDS
   ============================================================ */
.login-field {
  margin-bottom: var(--login-space-5);
}

.login-label {
  display: block;
  font-size: var(--login-font-size-sm);
  font-weight: 500;
  color: var(--login-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--login-space-2);
}

.login-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.login-input {
  width: 100%;
  padding: var(--login-space-3) var(--login-space-4);
  background: var(--login-input-bg);
  border: 1px solid var(--login-input-border);
  border-radius: var(--login-radius);
  color: var(--login-text);
  font-family: var(--login-font-family);
  font-size: var(--login-font-size-base);
  transition: all var(--login-transition);
  min-height: 32px;
}

.login-input::placeholder {
  color: var(--login-text-placeholder);
}

.login-input:focus {
  outline: none;
  border-color: var(--login-input-focus);
  box-shadow: 0 0 0 3px rgba(138, 197, 63, 0.15);
}

.login-input.is-invalid {
  border-color: var(--login-error) !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15) !important;
}

.login-input.is-valid {
  border-color: var(--login-success);
}

/* Password toggle */
.login-input-password {
  padding-right: 48px;
}

.login-password-toggle {
  position: absolute;
  right: var(--login-space-3);
  background: none;
  border: none;
  color: var(--login-text-muted);
  cursor: pointer;
  padding: var(--login-space-2);
  transition: color var(--login-transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-password-toggle:hover {
  color: var(--login-text);
}

.login-password-toggle:focus {
  outline: none;
}

.login-password-toggle:focus-visible {
  outline: 2px solid var(--login-brand);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Field error message */
.login-field-error {
  display: none;
  font-size: var(--login-font-size-xs);
  color: var(--login-error);
  margin-top: var(--login-space-2);
  padding-left: var(--login-space-1);
}

.login-field-error.is-visible {
  display: block;
}

/* ============================================================
   SUBMIT BUTTON
   ============================================================ */
.login-submit {
  width: 100%;
  padding: var(--login-space-4);
  background: var(--login-brand);
  border: none;
  border-radius: var(--login-radius);
  color: #000000;
  font-family: var(--login-font-family);
  font-size: var(--login-font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--login-transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--login-space-2);
  min-height: 52px;
  margin-top: var(--login-space-6);
}

.login-submit:hover:not(:disabled) {
  background: var(--login-brand-hover);
}

.login-submit:focus {
  outline: none;
}

.login-submit:focus-visible {
  outline: 2px solid var(--login-text);
  outline-offset: 2px;
}

.login-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.login-submit-spinner {
  display: none;
  animation: spin 1s linear infinite;
}

.login-submit.is-loading .login-submit-spinner {
  display: inline-block;
}

.login-submit.is-loading .login-submit-text {
  margin-left: var(--login-space-2);
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ============================================================
   FOOTER LINKS
   ============================================================ */
.login-footer {
  display: flex;
  justify-content: center;
  margin-top: var(--login-space-6);
  padding-top: var(--login-space-6);
  border-top: 1px solid var(--login-card-border);
}

.login-link {
  font-size: var(--login-font-size-sm);
  color: var(--login-text-muted);
  text-decoration: none;
  transition: color var(--login-transition);
  display: flex;
  align-items: center;
  gap: var(--login-space-2);
}

.login-link:hover {
  color: var(--login-brand);
}

.login-link:focus {
  outline: none;
}

.login-link:focus-visible {
  outline: 2px solid var(--login-brand);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ============================================================
   PASSWORD RESET MODAL
   ============================================================ */
.login-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--login-space-6);
}

.login-modal-overlay.is-visible {
  display: flex;
}

.login-modal {
  background: var(--login-card-bg);
  border: 1px solid var(--login-card-border);
  border-radius: var(--login-radius-lg);
  box-shadow: var(--login-shadow-lg);
  width: 100%;
  max-width: 420px;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(-20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.login-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--login-space-6);
  border-bottom: 1px solid var(--login-card-border);
}

.login-modal-title {
  font-size: var(--login-font-size-xl);
  font-weight: 700;
  color: var(--login-text);
  margin: 0;
}

.login-modal-close {
  background: none;
  border: none;
  color: var(--login-text-muted);
  cursor: pointer;
  padding: var(--login-space-2);
  font-size: var(--login-font-size-lg);
  transition: color var(--login-transition);
}

.login-modal-close:hover {
  color: var(--login-text);
}

.login-modal-body {
  padding: var(--login-space-6);
}

.login-modal-description {
  font-size: var(--login-font-size-sm);
  color: var(--login-text-muted);
  margin: 0 0 var(--login-space-6) 0;
  line-height: 1.6;
}

/* Reset steps navigation */
.login-reset-steps {
  display: flex;
  gap: var(--login-space-3);
  margin-bottom: var(--login-space-6);
}

.login-reset-step {
  flex: 1;
  text-align: center;
  padding: var(--login-space-2) 0;
  font-size: var(--login-font-size-xs);
  color: var(--login-text-muted);
  position: relative;
}

.login-reset-step::before {
  content: attr(data-step);
  display: block;
  width: 24px;
  height: 24px;
  margin: 0 auto var(--login-space-1);
  background: var(--login-input-bg);
  border: 1px solid var(--login-input-border);
  border-radius: 50%;
  font-weight: 600;
  line-height: 24px;
}

.login-reset-step.is-active {
  color: var(--login-brand);
}

.login-reset-step.is-active::before {
  background: var(--login-brand);
  border-color: var(--login-brand);
  color: #000;
}

.login-reset-step.is-complete::before {
  content: '✓';
  background: var(--login-success);
  border-color: var(--login-success);
  color: #fff;
}

/* Reset views */
.login-reset-view {
  display: none;
}

.login-reset-view.is-active {
  display: block;
}

/* Modal button */
.login-modal-button {
  width: 100%;
  padding: var(--login-space-4);
  background: var(--login-brand);
  border: none;
  border-radius: var(--login-radius);
  color: #000000;
  font-family: var(--login-font-family);
  font-size: var(--login-font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--login-transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--login-space-2);
  min-height: 48px;
}

.login-modal-button:hover:not(:disabled) {
  background: var(--login-brand-hover);
}

.login-modal-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.login-modal-button-secondary {
  background: transparent;
  border: 1px solid var(--login-input-border);
  color: var(--login-text);
  margin-top: var(--login-space-3);
}

.login-modal-button-secondary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.05);
}

/* ============================================================
   RESPONSIVE STYLES
   ============================================================ */

/* Tablet and up */
@media (min-width: 768px) {
  .login-container {
    flex-direction: row; /* Side-by-side on tablet and desktop */
    justify-content: center; /* Center on desktop */
    padding-top: var(--login-space-6); /* Reset padding */
    gap: var(--login-space-12); /* Reset gap */
  }
  
  .login-brand {
    text-align: left; /* Reset alignment for desktop */
    flex: 1; /* Allow to grow on desktop */
  }
  
  .login-brand-logo {
    margin-left: 0;
    margin-right: 0;
  }
  
  .login-brand-subtitle {
    display: block; /* Show subtext on desktop */
  }
  
  .login-brand-title {
    font-size: var(--login-font-size-4xl); /* Reset to default size */
  }
  
  .login-container {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* Desktop */
@media (min-width: 1024px) {
  .login-form-wrapper {
    padding: var(--login-space-10);
  }
  
  .login-brand-title {
    font-size: 48px;
  }
}

/* Mobile and tablet - Password reset modal responsive */
@media (max-width: 768px) {
  .login-form-wrapper {
    padding: 16px;
  }
  
  .login-modal-overlay {
    padding: var(--login-space-3);
    align-items: flex-start;
    overflow-y: auto;
  }
  
  .login-modal {
    max-width: 100%;
    margin-top: var(--login-space-4);
    margin-bottom: var(--login-space-4);
  }
  
  .login-modal-header {
    padding: var(--login-space-5);
  }
  
  .login-modal-body {
    padding: var(--login-space-5);
  }
  
  .login-modal-title {
    font-size: var(--login-font-size-lg);
  }
  
  .login-reset-steps {
    gap: var(--login-space-2);
    margin-bottom: var(--login-space-5);
  }
  
  .login-reset-step {
    font-size: var(--login-font-size-xs);
    padding: var(--login-space-1) 0;
  }
}

/* Small mobile */
@media (max-width: 480px) {
  .login-form-wrapper {
    padding: 16px;
    padding-top: var(--login-space-8);
  }
  
  .login-brand-title {
    font-size: var(--login-font-size-3xl);
  }
  
  /* Tighter spacing for very small screens */
  .login-modal-overlay {
    padding: var(--login-space-2);
  }
  
  .login-modal-header,
  .login-modal-body {
    padding: var(--login-space-4);
  }
  
  .login-modal-title {
    font-size: var(--login-font-size-base);
  }
  
  .login-reset-step {
    font-size: 10px;
  }
  
  .login-reset-step::before {
    width: 20px;
    height: 20px;
    line-height: 20px;
    font-size: 11px;
  }
  
  /* Keep tabs in one line on mobile - remove the stacking override */
}

/* ============================================================
   ACCESSIBILITY
   ============================================================ */

/* Focus visible for keyboard navigation */
:focus-visible {
  outline: 2px solid var(--login-brand);
  outline-offset: 2px;
}

/* Reduce motion for vestibular disorders */
@media (prefers-reduced-motion: reduce) {
  .login-error-banner,
  .login-modal {
    animation: none;
  }
  
  .login-submit-spinner {
    animation: none;
  }
  
  * {
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .login-card {
    border-width: 2px;
  }
  
  .login-input {
    border-width: 2px;
  }
  
  .login-tab[aria-selected="true"]::after {
    height: 4px;
  }
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.login-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.login-hidden {
  display: none !important;
}