/**
 * Kratevia Auth Pages (Login & Register)
 * Clean, calm, and trustworthy authentication experience
 */

/* ============================================
   AUTH PAGE BASE
   ============================================ */

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(0.875rem, 2.5vw, 1.5rem);
  position: relative;
  /* MOBILE FIX: Rimosso overflow:hidden per permettere scroll verticale
     su mobile quando il form è più alto dello schermo */
  overflow-x: hidden;
  overflow-y: auto;
}

/* ============================================
   AUTH THEME BACKGROUNDS
   
   PROBLEMA RISOLTO: Il JS imposta data-theme su <html>, non su <body>
   I selettori devono matchare ENTRAMBE le strutture:
   - html[data-theme="light"] .auth-page  (impostato da JS)
   - .auth-page[data-theme="light"]       (fallback se su body)
   ============================================ */

/* Light Theme Auth - RICH BACKGROUND (non bianco piatto)
   Gradienti delicati ambra/oro + neutri caldi per coerenza brand */
html[data-theme="light"] .auth-page,
:root[data-theme="light"] .auth-page,
.auth-page[data-theme="light"] {
  background: 
    /* Gradiente principale ambra/oro in alto a sinistra */
    radial-gradient(ellipse at 15% 10%, rgba(251, 191, 36, 0.12) 0%, transparent 45%),
    /* Accento viola/lavanda in basso a destra */
    radial-gradient(ellipse at 85% 90%, rgba(124, 58, 237, 0.08) 0%, transparent 40%),
    /* Gradiente centrale tenue per profondità */
    radial-gradient(ellipse at 50% 50%, rgba(251, 191, 36, 0.04) 0%, transparent 60%),
    /* Base: grigio caldo invece di bianco piatto */
    linear-gradient(180deg, #fafaf9 0%, #f5f5f4 50%, #fafaf9 100%);
}

/* Dark Theme Auth */
html[data-theme="dark"] .auth-page,
:root[data-theme="dark"] .auth-page,
.auth-page[data-theme="dark"],
.auth-page.dark-theme {
  background: 
    radial-gradient(ellipse at 20% 0%, rgba(251, 191, 36, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(124, 58, 237, 0.1) 0%, transparent 50%),
    var(--neutral-925);
}

/* Assicura che html e body coprano l'intera viewport */
html, body {
  min-height: 100%;
}

.auth-page {
  min-height: 100dvh;
}

/* Ambient elements */
.auth-ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.auth-ambient .glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.6;
}

.auth-ambient .glow-1 {
  width: 400px;
  height: 400px;
  top: -100px;
  right: 10%;
  background: var(--accent-500);
  opacity: 0.15;
}

.auth-ambient .glow-2 {
  width: 300px;
  height: 300px;
  bottom: -50px;
  left: 10%;
  background: #7c3aed;
  opacity: 0.1;
}

/* Noise overlay */
.auth-noise {
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  opacity: 0.02;
  pointer-events: none;
  z-index: 0;
}

/* ============================================
   AUTH CONTAINER
   ============================================ */

.auth-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
}

.auth-card {
  background: var(--surface-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

/* Dark theme card adjustments */
.auth-page[data-theme="dark"] .auth-card,
.auth-page.dark-theme .auth-card {
  background: rgba(31, 31, 35, 0.8);
  backdrop-filter: blur(20px);
  border-color: rgba(255, 255, 255, 0.08);
}

/* ============================================
   AUTH CARD TOPBAR (Home + Theme toggle)
   Posizionati dentro la card per UX pulita
   ============================================ */

.auth-card-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--surface-secondary);
}

/* Home link (left) */
.auth-topbar-home {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 40px;
  padding: 0 var(--space-2-5);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.auth-topbar-home:hover {
  color: var(--text-primary);
  background: var(--surface-interactive-hover);
}

.auth-topbar-home svg {
  flex-shrink: 0;
}

/* Theme toggle (right) */
.auth-topbar-theme {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.auth-topbar-theme:hover {
  color: var(--text-primary);
  background: var(--surface-interactive-hover);
  border-color: var(--border-default);
}

.auth-topbar-actions {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.auth-locale-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.auth-locale-option {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: var(--font-medium);
  padding: 2px 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.auth-locale-flag {
  display: inline-block;
  vertical-align: middle;
  border-radius: 2px;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.08);
}

.auth-locale-option:hover,
.auth-locale-option:focus-visible {
  color: var(--text-primary);
}

.auth-locale-option.is-active {
  color: var(--text-primary);
  font-weight: var(--font-semibold);
}

/* Theme toggle icons: show/hide based on theme */
.auth-topbar-theme .sun-icon,
.auth-topbar-theme .moon-icon {
  display: none;
}

/* Dark theme: show sun icon (to switch to light) */
.auth-page[data-theme="dark"] .auth-topbar-theme .sun-icon,
.auth-page.dark-theme .auth-topbar-theme .sun-icon {
  display: block;
}

/* Light theme: show moon icon (to switch to dark) */
.auth-page[data-theme="light"] .auth-topbar-theme .moon-icon,
.auth-page:not([data-theme]):not(.dark-theme) .auth-topbar-theme .moon-icon {
  display: block;
}

/* Hide old floating elements (moved inside card) */
.auth-back,
.auth-theme-toggle {
  display: none;
}

/* ============================================
   AUTH HEADER
   ============================================ */

.auth-header {
  padding: var(--space-4) var(--space-6) var(--space-2-5);
  text-align: center;
}

/* Auth logo - Uses unified .ks-logo from logo.css */
.auth-header .ks-logo {
  margin-bottom: var(--space-2-5);
  justify-content: center;
}

.auth-title {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 1.7vw, 1.75rem);
  font-weight: var(--font-semibold);
  line-height: 1.1;
  color: var(--text-primary);
  margin-bottom: 0;
}

.auth-subtitle {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin: 0;
}

.auth-subtitle--desktop {
  display: block;
}

/* ============================================
   AUTH BODY (FORM)
   ============================================ */

.auth-body {
  padding: 0 var(--space-6) var(--space-5);
}

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

.auth-form .form-group {
  margin-bottom: 0;
}

.auth-form .form-label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.form-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  min-height: 40px;
}

.form-label-row .form-label {
  margin-bottom: 0;
}

.auth-form .form-input {
  width: 100%;
  min-height: 44px;
  padding: 0.625rem var(--space-3);
  font-size: var(--text-base);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

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

.auth-form .form-input:focus {
  outline: none;
  border-color: var(--accent-500);
  box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.15);
}

.auth-form .form-input::placeholder {
  color: var(--text-muted);
}

.form-input-shell {
  position: relative;
}

.field-status-icon {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.field-status-icon::before {
  content: '';
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 50%;
}

.form-input.is-valid {
  border-color: color-mix(in srgb, var(--success) 65%, var(--border-default));
  background: color-mix(in srgb, var(--input-bg) 95%, var(--success) 5%);
}

.form-input.is-invalid {
  border-color: color-mix(in srgb, var(--danger) 75%, var(--border-default));
  background: color-mix(in srgb, var(--input-bg) 95%, var(--danger) 5%);
}

.form-input-shell .form-input.is-valid ~ .field-status-icon,
.password-wrapper .form-input.is-valid ~ .field-status-icon {
  opacity: 1;
}

.form-input-shell .form-input.is-valid ~ .field-status-icon::before,
.password-wrapper .form-input.is-valid ~ .field-status-icon::before {
  content: '✓';
  background: rgba(34, 197, 94, 0.15);
  color: var(--success-dark);
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: var(--font-bold);
}

.form-input-shell .form-input.is-invalid ~ .field-status-icon,
.password-wrapper .form-input.is-invalid ~ .field-status-icon {
  opacity: 1;
}

.form-input-shell .form-input.is-invalid ~ .field-status-icon::before,
.password-wrapper .form-input.is-invalid ~ .field-status-icon::before {
  content: '✕';
  background: rgba(239, 68, 68, 0.14);
  color: var(--danger-dark);
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: var(--font-bold);
}

.field-message {
  margin: var(--space-0-5) 0 0;
  min-height: 1.1rem;
  font-size: var(--text-xs);
  line-height: 1.3;
  color: var(--danger-dark);
}

.field-message.hidden {
  display: block !important;
  visibility: hidden;
}

.auth-forgot-link {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-1);
  border-radius: var(--radius-md);
  color: var(--text-accent);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
}

.auth-forgot-link:hover,
.auth-forgot-link:focus-visible {
  text-decoration: underline;
  background: color-mix(in srgb, var(--surface-interactive-hover) 72%, transparent);
}

.caps-lock-indicator {
  margin: var(--space-1) 0 0;
  font-size: var(--text-xs);
  color: color-mix(in srgb, var(--warning-dark) 82%, var(--text-primary));
  min-height: 1rem;
}

.caps-lock-indicator.hidden {
  display: block !important;
  visibility: hidden;
}

.auth-page[data-theme="dark"] .field-message,
.auth-page.dark-theme .field-message {
  color: #fca5a5;
}

.auth-page[data-theme="dark"] .caps-lock-indicator,
.auth-page.dark-theme .caps-lock-indicator {
  color: #fcd34d;
}

.auth-submit-slot {
  min-height: 44px;
}

/* Submit button */
.auth-submit {
  width: 100%;
  min-height: 44px;
  padding: 0 var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--neutral-900);
  background: var(--accent-500);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-top: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  position: relative;
}

.auth-submit:hover {
  background: var(--accent-400);
  box-shadow: var(--glow-accent);
  transform: translateY(-1px);
}

.auth-submit:active {
  transform: translateY(0);
}

.auth-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ============================================
   AUTH FOOTER
   ============================================ */

.auth-footer {
  padding: var(--space-4) var(--space-6);
  background: var(--surface-secondary);
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.auth-footer p {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
}

.auth-footer a {
  color: var(--text-accent);
  text-decoration: none;
  font-weight: var(--font-medium);
  transition: color var(--transition-fast);
}

.auth-footer a:hover {
  color: var(--accent-500);
  text-decoration: underline;
}

/* ============================================
   AUTH ALERTS
   ============================================ */

.auth-alert {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  margin-bottom: var(--space-3);
}

.auth-alert.error {
  background: var(--danger-light);
  color: var(--danger-dark);
  border: 1px solid var(--danger);
}

.auth-alert.success {
  background: var(--success-light);
  color: var(--success-dark);
  border: 1px solid var(--success);
}

.auth-alert .auth-alert-message {
  margin: 0;
}

.auth-assist-details {
  margin-top: var(--space-2);
}

.auth-assist-details summary {
  cursor: pointer;
  font-weight: var(--font-semibold);
  font-size: var(--text-xs);
}

.auth-assist-code {
  margin: var(--space-1) 0 0;
  font-size: var(--text-xs);
  opacity: 0.9;
}

/* Dark theme alerts */
.auth-page[data-theme="dark"] .auth-alert.error,
.auth-page.dark-theme .auth-alert.error {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

.auth-page[data-theme="dark"] .auth-alert.success,
.auth-page.dark-theme .auth-alert.success {
  background: rgba(34, 197, 94, 0.1);
  border-color: rgba(34, 197, 94, 0.3);
  color: #86efac;
}

/* ============================================
   AUTH DIVIDER
   ============================================ */

.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: var(--space-2) 0;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-default);
}

.auth-divider span {
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.auth-provider-btn {
  width: 100%;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--text-primary);
  background: var(--surface-secondary);
  font-weight: var(--font-semibold);
  transition: border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.auth-provider-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.auth-provider-btn:hover {
  border-color: color-mix(in srgb, var(--brand-primary) 30%, var(--border-default));
  background: var(--interactive-hover);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--brand-primary) 22%, transparent);
}

.auth-provider-btn:focus-visible {
  outline: none;
  border-color: color-mix(in srgb, var(--brand-primary) 32%, var(--border-default));
  box-shadow: inset 0 0 0 2px rgba(251, 191, 36, 0.35);
}

.auth-oidc-notice {
  margin-bottom: var(--space-4);
}

.auth-oidc-title {
  margin: 0 0 var(--space-2);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
}

.auth-oidc-notice p {
  margin: 0 0 var(--space-2);
}

.auth-oidc-steps {
  font-size: var(--text-sm);
  color: inherit;
}

.auth-oidc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.auth-oidc-primary,
.auth-oidc-secondary {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: 0 var(--space-3);
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: var(--font-semibold);
  transition: transform var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
}

.auth-oidc-primary {
  background: var(--surface-primary);
  border: 1px solid color-mix(in srgb, var(--danger) 40%, var(--border-default));
  color: var(--danger-dark);
}

.auth-oidc-primary:hover {
  transform: translateY(-1px);
  background: color-mix(in srgb, var(--danger-light) 35%, var(--surface-primary));
}

.auth-oidc-secondary {
  border: 1px dashed color-mix(in srgb, var(--danger) 45%, var(--border-default));
  color: inherit;
  opacity: 0.95;
}

.auth-oidc-secondary span {
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  opacity: 0.9;
}

.auth-oidc-secondary:hover {
  transform: translateY(-1px);
}

.auth-login-content {
  opacity: 1;
  transform: translateY(0);
  max-height: 1200px;
  overflow: hidden;
  transition: opacity 180ms ease, transform 180ms ease, max-height 180ms ease;
}

.auth-login-content.is-collapsed {
  opacity: 0;
  transform: translateY(10px);
  max-height: 0;
  pointer-events: none;
}

.auth-login-content.is-revealing {
  animation: auth-login-reveal 180ms ease;
}

#oidc-login-notice {
  transition: opacity 180ms ease, transform 180ms ease;
}

#oidc-login-notice.is-dismissing {
  opacity: 0;
  transform: translateY(-10px);
}

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

/* ============================================
   THEME TOGGLE
   ============================================ */

.auth-theme-toggle {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 10;
}

.theme-toggle-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  background: var(--interactive-hover);
  color: var(--text-primary);
}

.theme-toggle-btn svg {
  width: 20px;
  height: 20px;
}

/* ============================================
   BACK TO HOME
   ============================================ */

.auth-back {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  z-index: 10;
}

.auth-back a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  text-decoration: none;
  background: var(--surface-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.auth-back a:hover {
  background: var(--interactive-hover);
  color: var(--text-primary);
}

.auth-back svg {
  width: 16px;
  height: 16px;
}

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

@media (max-width: 480px) {
  .auth-page {
    padding: var(--space-4);
    /* MOBILE FIX: Allinea al top e permette scroll naturale
       per raggiungere tutti gli elementi del form */
    align-items: flex-start;
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
    min-height: 100vh;
    height: auto;
  }
  
  .auth-card {
    border-radius: var(--radius-xl);
  }
  
  .auth-header {
    padding: var(--space-3-5) var(--space-4) var(--space-2);
  }
  
  .auth-body {
    padding: 0 var(--space-4) var(--space-4);
  }
  
  .auth-footer {
    padding: var(--space-3) var(--space-4);
  }
  
  .auth-logo-icon {
    width: 40px;
    height: 40px;
  }
  
  .auth-logo-text {
    font-size: var(--text-xl);
  }
  
  .auth-title {
    font-size: clamp(1.25rem, 5vw, 1.5rem);
  }
  
  .auth-back,
  .auth-theme-toggle {
    position: fixed;
  }

  .auth-subtitle--desktop {
    display: none;
  }

  #password-strength-slot {
    --slot-open-height: 220px;
  }
}

@media (max-height: 760px) {
  .auth-subtitle--desktop {
    display: none;
  }
}

/* ============================================
   PASSWORD VISIBILITY TOGGLE
   ============================================ */

.password-wrapper {
  position: relative;
}

.password-toggle {
  position: absolute;
  right: var(--space-2);
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.password-toggle:hover {
  color: var(--text-secondary);
  background: var(--interactive-hover);
}

.password-wrapper .form-input {
  padding-right: 52px;
}

.password-wrapper .field-status-icon {
  display: none;
}

/* Password strength meter */
.password-strength {
  margin-top: var(--space-3);
}

.password-strength-bar {
  width: 100%;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--surface-tertiary);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

#password-strength-fill {
  display: block;
  height: 100%;
  width: 0;
  background: var(--danger);
  transition: width 180ms ease, background-color 180ms ease;
}

.password-strength-bar[data-level="medium"] #password-strength-fill {
  background: #f59e0b;
}

.password-strength-bar[data-level="strong"] #password-strength-fill {
  background: var(--success);
}

.password-strength-label {
  margin: var(--space-2) 0 0;
  font-size: var(--text-xs);
  color: var(--text-secondary);
  font-weight: var(--font-semibold);
}

.password-strength-label[data-level="weak"] {
  color: var(--danger);
}

.password-strength-label[data-level="medium"] {
  color: #d97706;
}

.password-strength-label[data-level="strong"] {
  color: var(--success);
}

.password-checklist {
  margin: var(--space-2) 0 0;
  padding-left: 18px;
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  display: grid;
  gap: 4px;
}

.password-checklist li {
  list-style: disc;
}

.password-checklist li.is-passed {
  color: var(--success-dark);
}

.password-checklist li.is-failed {
  color: color-mix(in srgb, var(--danger-dark) 75%, var(--text-secondary));
}

.password-checklist li.is-neutral {
  color: var(--text-tertiary);
}

.auth-progressive-slot {
  --slot-open-height: 168px;
  overflow: hidden;
  max-height: var(--slot-open-height);
  opacity: 1;
  transition: max-height 180ms ease, opacity 180ms ease;
}

.auth-progressive-slot.is-collapsed {
  max-height: 0;
  opacity: 0;
  pointer-events: none;
}

#password-strength-slot {
  --slot-open-height: 210px;
}

#confirm-password-slot {
  --slot-open-height: 146px;
}

/* ============================================
   LOADING STATE
   ============================================ */

.auth-submit.loading {
  pointer-events: none;
}

.auth-submit__spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(24, 24, 27, 0.25);
  border-top-color: var(--neutral-900);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: none;
}

.auth-submit.loading .auth-submit__spinner {
  display: inline-block;
}

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

/* ============================================
   FIREFOX FALLBACK - Prevent background pixelation
   ============================================ */

/* Firefox fallback: evita blur/backdrop che crea banding/pixelation */
@-moz-document url-prefix() {
  /* Disabilita TUTTI i filtri problematici */
  .auth-ambient .glow,
  .auth-ambient .glow-1,
  .auth-ambient .glow-2 {
    filter: none !important;
    backdrop-filter: none !important;
  }

  /* Auth card in dark theme - rimuovi backdrop-filter */
  .auth-page[data-theme="dark"] .auth-card,
  .auth-page.dark-theme .auth-card {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    background: rgba(31, 31, 35, 0.95) !important;
  }

  /* Disabilita noise overlay che può causare problemi */
  .auth-noise {
    display: none !important;
  }

  /* Rimuovi background-attachment fixed */
  .auth-page {
    background-attachment: scroll !important;
  }

  /* Sostituzione completa dello sfondo con gradienti puliti */
  .auth-page[data-theme="dark"],
  .auth-page.dark-theme {
    background: 
      radial-gradient(ellipse at 20% 0%, rgba(251, 191, 36, 0.08) 0%, transparent 50%),
      radial-gradient(ellipse at 80% 100%, rgba(124, 58, 237, 0.05) 0%, transparent 50%),
      var(--neutral-925) !important;
  }

  .auth-page[data-theme="light"],
  .auth-page:not([data-theme]):not(.dark-theme) {
    background: 
      radial-gradient(ellipse at 20% 0%, rgba(251, 191, 36, 0.04) 0%, transparent 50%),
      radial-gradient(ellipse at 80% 100%, rgba(124, 58, 237, 0.02) 0%, transparent 50%),
      var(--neutral-100) !important;
  }

  /* Disabilita completamente l'ambient container che causa problemi */
  .auth-ambient {
    display: none !important;
  }
}

/* ============================================
   FIREFOX FALLBACK ALTERNATIVO - Metodo universale
   ============================================ */

/* Fallback universale per tutti i browser che hanno problemi con i filtri */
@supports not (-webkit-backdrop-filter: blur(1px)) {
  .auth-ambient .glow,
  .auth-ambient .glow-1,
  .auth-ambient .glow-2 {
    filter: none !important;
    backdrop-filter: none !important;
  }

  .auth-page[data-theme="dark"] .auth-card,
  .auth-page.dark-theme .auth-card {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    background: rgba(31, 31, 35, 0.95) !important;
  }

  .auth-noise {
    display: none !important;
  }

  .auth-ambient {
    display: none !important;
  }
}

/* ============================================
   FIREFOX SPECIFIC FIX - Disabilita completamente gli effetti problematici
   ============================================ */

/* Fix specifico per Firefox usando @supports */
@supports (display: -moz-box) {
  .auth-ambient .glow {
    filter: none !important;
    backdrop-filter: none !important;
  }

  .auth-ambient .glow-1,
  .auth-ambient .glow-2 {
    filter: none !important;
    backdrop-filter: none !important;
  }

  .auth-page[data-theme="dark"] .auth-card,
  .auth-page.dark-theme .auth-card {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  .auth-noise {
    display: none !important;
  }

  /* Forza background pulito senza effetti */
  .auth-page[data-theme="dark"],
  .auth-page.dark-theme {
    background: var(--neutral-925) !important;
  }

  .auth-page[data-theme="light"],
  .auth-page:not([data-theme]):not(.dark-theme) {
    background: var(--neutral-100) !important;
  }

  /* Disabilita completamente l'ambient container */
  .auth-ambient {
    display: none !important;
  }
}
