/* === VARIABLES CSS === */
:root {
  --color-primary: #d81e5b; /* Rouge union Villejuif */
  --color-primary-dark: #b01849;
  --color-primary-light: #ff3679;
  --color-secondary: #2c3e50;
  --color-text: #2c3e50;
  --color-text-light: #6c757d;
  --color-border: #dee2e6;
  --color-border-focus: #d81e5b;
  --color-background: #f8f9fa;
  --color-error-bg: #ffe6ec;
  --color-error-border: #d81e5b;
  --color-error-text: #b01849;
  --color-white: #ffffff;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --border-radius: 8px;
  --transition-speed: 0.2s;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
  --shadow-focus: 0 0 0 3px rgba(216, 30, 91, 0.15);
}

/* === RESET & BASE === */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  margin: 0;
  padding: var(--spacing-md);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--color-text);
  line-height: 1.6;
  /* Support mobile viewport height */
  min-height: 100svh;
}

/* === SKIP LINK (ACCESSIBILITÉ) === */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-md);
  text-decoration: none;
  z-index: 1000;
  border-radius: 0 0 var(--border-radius) 0;
}

.skip-link:focus {
  top: 0;
  outline: 2px solid var(--color-white);
  outline-offset: 2px;
}

/* === CONTENEUR PRINCIPAL === */
.login-container {
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
}

.login-card {
  background: var(--color-white);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  position: relative;
}

/* === LOGO === */
.logo-container {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.logo {
  width: 140px;
  max-width: 100%;
  height: auto;
  /* Retirer le fond blanc du logo */
  mix-blend-mode: multiply;
}

/* === TITRES === */
h1 {
  font-size: clamp(1.25rem, 4vw, 1.5rem);
  font-weight: 600;
  margin: 0 0 var(--spacing-sm) 0;
  color: var(--color-primary);
  text-align: center;
  line-height: 1.3;
}

.subtitle {
  font-size: clamp(0.8rem, 3vw, 0.9rem);
  color: var(--color-text-light);
  text-align: center;
  margin: 0 0 var(--spacing-lg) 0;
}

/* === MESSAGES D'ERREUR === */
#kc-error-message {
  background: var(--color-error-bg);
  color: var(--color-error-text);
  border: 1px solid var(--color-error-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  animation: slideIn 0.3s ease-out;
}

#kc-error-message p {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 500;
}

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

/* === FORMULAIRE === */
#kc-form-login {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

/* === GROUPES INPUT === */
.input-group {
  position: relative;
}

.input-group input {
  width: 100%;
  padding: 0.875rem 0.875rem 0.875rem 2.75rem;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition-speed), 
              box-shadow var(--transition-speed);
  outline: none;
}

/* Placeholder non visible pour l'effet de label flottant */
.input-group input::placeholder {
  opacity: 0;
}

/* États focus */
.input-group input:focus {
  border-color: var(--color-border-focus);
  box-shadow: var(--shadow-focus);
}

.input-group input:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* État erreur */
.input-group.error input {
  border-color: var(--color-error-border);
}

/* === LABELS FLOTTANTS === */
.input-group label {
  position: absolute;
  left: 2.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-light);
  font-size: 1rem;
  pointer-events: none;
  transition: all var(--transition-speed) ease;
  background: var(--color-white);
  padding: 0 var(--spacing-xs);
}

.input-group input:focus + label,
.input-group input:not(:placeholder-shown) + label {
  top: 0;
  left: 2.5rem;
  font-size: 0.75rem;
  color: var(--color-primary);
  font-weight: 500;
}

/* === ICÔNES INPUT === */
.input-icon {
  position: absolute;
  left: 0.875rem;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  opacity: 0.5;
  transition: opacity var(--transition-speed);
  pointer-events: none;
}

.input-group input:focus ~ .input-icon {
  opacity: 1;
  color: var(--color-primary);
}

/* === BOUTON TOGGLE MOT DE PASSE === */
.toggle-password {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.6;
  transition: opacity var(--transition-speed), 
              transform var(--transition-speed);
  border-radius: var(--border-radius);
  color: var(--color-text-light);
}

.toggle-password:hover {
  opacity: 1;
  background: rgba(0, 0, 0, 0.05);
}

.toggle-password:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  opacity: 1;
}

.toggle-password svg {
  width: 18px;
  height: 18px;
}

/* Ajuster padding pour le toggle password */
.input-group input[type="password"],
.input-group input[name="password"] {
  padding-right: 2.75rem;
}

/* === CHECKBOX "SE SOUVENIR" === */
.remember-me {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin: calc(var(--spacing-lg) * -0.5) 0 0 0;
}

.remember-me input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--color-primary);
  border-radius: 4px;
}

.remember-me input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.remember-me label {
  font-size: 0.9rem;
  color: var(--color-text);
  cursor: pointer;
  user-select: none;
}

/* === BOUTON PRINCIPAL === */
button[type="submit"] {
  width: 100%;
  padding: 0.875rem var(--spacing-md);
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--transition-speed), 
              transform var(--transition-speed),
              box-shadow var(--transition-speed);
  box-shadow: var(--shadow-sm);
}

button[type="submit"]:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(216, 30, 91, 0.3);
}

button[type="submit"]:active {
  transform: translateY(0);
}

button[type="submit"]:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

button[type="submit"]:disabled {
  background: var(--color-border);
  cursor: not-allowed;
  transform: none;
}

/* === LIENS === */
.kc-links-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.forgot-password,
.register-link {
  font-size: 0.9rem;
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-speed);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
}

.forgot-password:hover,
.register-link:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.forgot-password:focus-visible,
.register-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* === RESPONSIVE === */

/* Petits mobiles (< 360px) */
@media (max-width: 359px) {
  body {
    padding: var(--spacing-sm);
  }
  
  .login-card {
    padding: var(--spacing-lg);
  }
  
  .logo {
    width: 100px;
  }
}

/* Mobiles (< 480px) */
@media (max-width: 480px) {
  :root {
    --spacing-xl: 1.5rem;
  }
  
  .login-card {
    padding: var(--spacing-lg);
  }
  
  h1 {
    font-size: 1.25rem;
  }
  
  .subtitle {
    font-size: 0.85rem;
  }
  
  .input-group input {
    padding: 0.75rem 0.75rem 0.75rem 2.5rem;
    font-size: 16px; /* Évite le zoom sur iOS */
  }
  
  .input-group label {
    left: 2.5rem;
  }
  
  button[type="submit"] {
    padding: 0.875rem;
  }
}

/* Tablettes portrait (481px - 768px) */
@media (min-width: 481px) and (max-width: 768px) {
  .login-container {
    max-width: 450px;
  }
}

/* Tablettes paysage & desktop (> 768px) */
@media (min-width: 769px) {
  body {
    padding: var(--spacing-xl);
  }
  
  .login-container {
    max-width: 460px;
  }
}

/* Mode paysage mobile */
@media (max-height: 600px) and (orientation: landscape) {
  body {
    padding: var(--spacing-sm) var(--spacing-md);
    align-items: flex-start;
  }
  
  .login-card {
    padding: var(--spacing-md) var(--spacing-lg);
  }
  
  .logo {
    width: 100px;
  }
  
  h1 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
  }
  
  .subtitle {
    font-size: 0.8rem;
    margin-bottom: var(--spacing-md);
  }
  
  #kc-form-login {
    gap: var(--spacing-md);
  }
}

/* === PRÉFÉRENCES UTILISATEUR === */

/* Réduction des mouvements */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Mode sombre (si supporté par le navigateur) */
@media (prefers-color-scheme: dark) {
  /* Optionnel : ajouter un thème sombre si souhaité */
}

/* === AMÉLIORATION CONTRASTE (WCAG AAA) === */
@media (prefers-contrast: high) {
  :root {
    --color-border: #000000;
    --color-text-light: #4a4a4a;
  }
  
  .input-group input {
    border-width: 3px;
  }
  
  button[type="submit"] {
    border: 2px solid var(--color-primary-dark);
  }
}

/* === IMPRESSION === */
@media print {
  body {
    background: white;
  }
  
  .toggle-password,
  .kc-links-container {
    display: none;
  }
}