/* ==========================================================================
   Shiva Automobile - Authentication & Password Challenge Styling
   Compliments application dark/light theme tokens and layout dimensions
   ========================================================================== */

/* Utility for hidden state toggles */
.auth-screen.hidden,
.auth-overlay.hidden,
.app-container.hidden,
.user-profile-menu.hidden,
.auth-form.hidden,
.auth-error-banner.hidden,
.auth-field-error.hidden,
.eye-show.hidden,
.eye-hide.hidden {
  display: none !important;
}

.user-avatar {
  cursor: pointer;
}

/* Full Viewport Standalone Authentication Page (Zero morph modal) */
.auth-screen {
  min-height: 100vh;
  min-height: 100dvh;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-primary);
  padding: 32px 16px;
  box-sizing: border-box;
  position: relative;
}

.auth-screen-theme-toggle {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 10;
}

/* Centered Authentication Card Container */
.auth-card-container {
  width: 100%;
  max-width: 400px;
  margin: auto;
}

.auth-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 36px 30px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
  display: flex;
  flex-direction: column;
  gap: 20px;
  box-sizing: border-box;
  animation: authCardEnter 280ms cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes authCardEnter {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Header & Brand Representation */
.auth-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 4px;
  margin-bottom: 2px;
}

.auth-company-name {
  font-family: var(--font-brand);
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.25;
}

.auth-title {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.3;
}

/* Dynamic Error Notification Banner */
.auth-error-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  background-color: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.28);
  color: #ef4444;
  font-size: 12px;
  line-height: 1.4;
  animation: bannerFade 180ms ease-out;
}

@keyframes bannerFade {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.auth-error-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.auth-error-text {
  font-weight: var(--font-weight-medium);
}

/* Form & Input Fields */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.auth-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.auth-label {
  font-size: 11px;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.auth-link-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 11px;
  cursor: pointer;
  padding: 0;
  transition: color var(--transition-fast);
}

.auth-link-btn:hover {
  color: var(--text-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.auth-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.auth-input {
  width: 100%;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  padding: 0 40px 0 14px;
  box-sizing: border-box;
  outline: none;
  transition: border-color var(--transition-fast), 
              background-color var(--transition-fast), 
              box-shadow var(--transition-fast);
}

.auth-input:hover {
  border-color: var(--border-strong);
}

.auth-input:focus {
  border-color: var(--text-primary);
  background-color: var(--bg-surface);
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.08);
}

.auth-input::placeholder {
  color: var(--text-muted);
  font-size: 12.5px;
}

/* Password Eye Toggle Button */
.auth-eye-btn {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.auth-eye-btn:hover {
  color: var(--text-primary);
  background-color: var(--bg-tertiary);
}

.auth-eye-btn svg {
  width: 16px;
  height: 16px;
  display: block;
  flex-shrink: 0;
}

/* Password Requirements Box (Complimenting erms-fe PasswordRequirements) */
.auth-requirements-box {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 10px 12px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  font-size: 11.5px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.req-title {
  font-size: 11px;
  font-weight: var(--font-weight-semibold);
  color: var(--text-secondary);
  margin-bottom: 2px;
}

.req-item {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.req-item .req-icon {
  font-size: 10px;
  line-height: 1;
}

.req-item.met {
  color: #22c55e;
  font-weight: var(--font-weight-medium);
}

.req-item.met .req-icon {
  content: "✓";
}

/* Field Validation Error Notice */
.auth-field-error {
  font-size: 11.5px;
  color: #ef4444;
  font-weight: var(--font-weight-medium);
  margin-top: 3px;
}

/* Primary Submit Button with Centered Content */
.auth-submit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  vertical-align: middle;
  height: 42px;
  width: 100%;
  border-radius: 8px;
  border: 1px solid transparent;
  background-color: var(--text-primary);
  color: var(--text-inverted);
  font-family: inherit;
  font-size: 13.5px;
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  outline: none;
  box-sizing: border-box;
  margin-top: 4px;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.auth-submit-btn:hover:not(:disabled) {
  opacity: 0.92;
  transform: translateY(-1px);
}

.auth-submit-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* Challenge Notice Card */
.challenge-notice {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 12px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
}

.challenge-badge {
  font-size: 10px;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #3b82f6;
}

.challenge-desc {
  font-size: 11.5px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.35;
}

/* Back to Login Button */
.auth-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  padding: 0;
  width: fit-content;
  margin-bottom: 2px;
  transition: color var(--transition-fast);
}

.auth-back-btn:hover {
  color: var(--text-primary);
}

.back-icon {
  width: 14px;
  height: 14px;
}

/* Spinner Animation */
.spinner-svg {
  width: 16px;
  height: 16px;
  animation: authSpin 0.75s linear infinite;
}

@keyframes authSpin {
  100% {
    transform: rotate(360deg);
  }
}


/* User Profile Floating Menu (In Application Header) */
.user-menu-wrapper {
  position: relative;
  display: inline-flex;
}

.user-profile-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 280px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 8px;
  box-shadow: 0 18px 42px -6px rgba(0, 0, 0, 0.24), 0 4px 14px -2px rgba(0, 0, 0, 0.1);
  z-index: 1050;
  display: flex;
  flex-direction: column;
  gap: 3px;
  animation: menuFadeIn 180ms cubic-bezier(0.16, 1, 0.3, 1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

:root[data-theme="dark"] .user-profile-menu {
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.65), 0 0 0 1px rgba(255, 255, 255, 0.08);
}

@keyframes menuFadeIn {
  from {
    opacity: 0;
    transform: translateY(-6px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* User Profile Header Card */
.user-profile-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 10px 12px 10px;
  border-radius: 10px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  margin-bottom: 2px;
}

.user-profile-avatar-wrap {
  position: relative;
  flex-shrink: 0;
}

.user-profile-badge-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--border-strong) 100%);
  border: 1.5px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.user-initials-text {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.04em;
  line-height: 1;
}

.user-status-dot {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: #10b981;
  border: 2px solid var(--bg-secondary);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.1);
}

.user-profile-meta {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
  flex: 1;
}

.user-profile-name-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.user-menu-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.25;
}

.user-menu-email {
  font-size: 11.5px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.2;
}

.user-profile-tags {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 4px;
  flex-wrap: wrap;
}

.user-menu-role {
  font-size: 9.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #2563eb;
  background-color: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(37, 99, 235, 0.22);
  padding: 1.5px 5px;
  border-radius: 4px;
  line-height: 1.2;
}

:root[data-theme="dark"] .user-menu-role {
  color: #60a5fa;
  background-color: rgba(96, 165, 250, 0.14);
  border-color: rgba(96, 165, 250, 0.28);
}

.user-menu-org {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10.5px;
  font-weight: 500;
  color: var(--text-secondary);
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  padding: 1.5px 6px;
  border-radius: 4px;
  line-height: 1.2;
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-tag-icon {
  width: 11px;
  height: 11px;
  flex-shrink: 0;
  color: var(--text-muted);
}

/* User Menu Divider */
.user-menu-divider {
  height: 1px;
  background-color: var(--border-subtle);
  margin: 4px 2px;
}

.user-menu-section {
  padding: 2px 0;
}

/* Theme Switcher Row (Modern Interactive Setting) */
.user-theme-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color var(--transition-fast);
  user-select: none;
}

.user-theme-row:hover {
  background-color: var(--bg-secondary);
}

.theme-row-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.theme-row-icon-box {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.user-theme-row:hover .theme-row-icon-box {
  border-color: var(--border-strong);
  transform: scale(1.05);
}

.theme-svg-icon {
  width: 15px;
  height: 15px;
  transition: transform var(--transition-spring);
}

.theme-row-text-group {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.theme-row-title {
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.2;
}

.theme-row-subtitle {
  font-size: 10.5px;
  color: var(--text-muted);
  line-height: 1.1;
}

/* iOS/macOS Style Tactile Switch */
.user-theme-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  margin: 0;
  flex-shrink: 0;
}

.user-theme-checkbox {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border-width: 0 !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

.user-theme-track {
  width: 38px;
  height: 22px;
  border-radius: 9999px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-strong);
  transition: background-color 220ms cubic-bezier(0.16, 1, 0.3, 1), border-color 220ms ease;
  position: relative;
  display: block;
  box-sizing: border-box;
}

.user-theme-checkbox:checked + .user-theme-track {
  background-color: #111111;
  border-color: #111111;
}

:root[data-theme="dark"] .user-theme-checkbox:checked + .user-theme-track {
  background-color: #ffffff;
  border-color: #ffffff;
}

.user-theme-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: #ffffff;
  box-shadow: 0 1.5px 3px rgba(0, 0, 0, 0.24);
  transition: transform 220ms cubic-bezier(0.16, 1, 0.3, 1), background-color 220ms ease;
  display: block;
}

.user-theme-checkbox:checked + .user-theme-track .user-theme-thumb {
  transform: translateX(16px);
}

:root[data-theme="dark"] .user-theme-checkbox:checked + .user-theme-track .user-theme-thumb {
  background-color: #0a0a0a;
}

/* Sign Out Button */
.btn-signout {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  border: none;
  background-color: transparent;
  color: #ef4444;
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
  outline: none;
  transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.btn-signout:hover {
  background-color: rgba(239, 68, 68, 0.08);
  color: #dc2626;
}

.btn-signout:active {
  transform: scale(0.99);
}

.signout-icon {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}