/* Variables de couleurs */
:root {
    /* Couleurs principales */
    --primary: #F96A24;    /* Orange principal */
    --primary-hover: #e05d1c; /* Orange plus foncé au survol */
    --primary-light: #ffefe6; /* Orange très clair pour les fonds */
    --secondary: #f5f5f7;  /* Gris très clair pour les arrière-plans */
    --dark: #1a1a1a;      /* Noir profond pour le texte */
    --dark-70: rgba(26, 26, 26, 0.7); /* Texte assombri */
    --light: #FFFFFF;     /* Blanc pur */
    --border: #e0e0e5;    /* Gris clair pour les bordures */
    --border-hover: #c8c8cc; /* Bordure au survol */
    --text: #33334d;      /* Gris très foncé bleuté pour le texte */
    --text-light: #666680; /* Texte secondaire */
    --error: #e74c3c;     /* Rouge pour les erreurs */
    --error-light: #fde8e6; /* Rouge clair pour les fonds d'erreur */
    --success: #2ecc71;   /* Vert pour les succès */
    --success-light: #e8f9f0; /* Vert clair pour les fonds de succès */
    --warning: #f39c12;   /* Orange pour les avertissements */
    --info: #3498db;      /* Bleu pour les informations */
    
    /* Ombres */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-primary: 0 4px 14px -2px rgba(249, 106, 36, 0.3);
    
    /* Transitions */
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Rayons de bordure */
    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;
    
    /* Espacement */
    --space-xs: 4px;
    --space-sm: 8px;
    --space: 16px;
    --space-md: 24px;
    --space-lg: 32px;
    --space-xl: 48px;
    
    /* Typographie */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

/* Reset et styles de base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Import des polices Google */

/* Reset et base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--text);
    background-color: var(--secondary);
    font-size: 16px;
    font-weight: 400;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Conteneur principal */
.form-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 120px);
    padding: 40px 20px;
}

/* Carte du formulaire */
.form-card {
    background: var(--light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 460px;
    padding: var(--space-xl);
    margin: var(--space) auto;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition-slow);
}

/* Effet de profondeur au survol */
.form-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Décoration subtile */
.form-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), #ff8c5a);
}

/* En-tête du formulaire */
.form-card h1 {
    color: var(--dark);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    text-align: center;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

.form-subtitle {
    color: var(--text-light);
    text-align: center;
    margin-bottom: var(--space-lg);
    font-size: 1.05rem;
    font-weight: 400;
    line-height: 1.6;
    max-width: 90%;
    margin-left: auto;
    margin-right: auto;
}

/* Champs de formulaire - Style amélioré */
.form-group {
    margin-bottom: var(--space-md);
    width: 100%;
    position: relative;
    width: 100%;
    max-width: 400px;
}

.form-group p {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark-70);
    font-size: 0.9375rem;
}

/* Conteneur des champs */
.form-fields {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    width: 100%;
}

/* Pour les écrans plus larges */
@media (min-width: 768px) {
    .form-group {
        flex: 1 1 calc(50% - 0.75rem);
        min-width: 280px;
    }
    
    .form-group.wide {
        flex: 1 1 100%;
    }
}

/* Pour les petits écrans */
@media (max-width: 767px) {
    .form-group {
        width: 100%;
    }
}

/* Champs de formulaire - Style de base */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="date"],
select,
textarea {
    display: block;
    width: 80%;
    max-width: 600px;
    padding: 0 15px;
    font-size: 0.95rem;
    font-weight: 400;
    line-height: 25px;
    color: var(--text);
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid #ced4da;
    border-radius: 6px;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    height: 25px;
    margin: 0 auto 15px;
}

/* Style pour les selects */
select {
    padding-right: 35px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23666680' viewBox='0 0 24 24'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 12px 12px;
    cursor: pointer;
}

/* Style pour les textarea */
textarea {
    min-height: 100px;
    padding: 10px 15px;
    line-height: 1.5;
    resize: vertical;
}

/* Style pour les champs au focus */
input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="tel"]:focus,
input[type="date"]:focus,
select:focus,
textarea:focus {
    border-color: #80bdff;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Style au survol */
.form-control:not(:disabled):not(.error):hover {
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(249, 106, 36, 0.15);
}

/* Style au focus */
.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(249, 106, 36, 0.2);
    transform: translateY(-1px);
}

/* Style pour les selects */
select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%23666680' viewBox='0 0 24 24'%3E%3Cpath d='M6 9l6 6 6-6' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 24px center;
    background-size: 16px 16px;
    padding-right: 54px;
    cursor: pointer;
}

/* Style pour les options des selects */
select option {
    padding: 8px 15px;
    border-radius: 4px;
    margin: 2px 0;
}

/* Style pour les textarea */
textarea.form-control {
    min-height: 170px; /* 80% plus grand */
    resize: vertical;
    padding: 24px 30px; /* Augmenté */
    line-height: 1.8; /* Meilleure lisibilité */
    border-radius: 30px; /* Coins plus arrondis */
    transition: all 0.3s ease;
    font-size: 1.2rem; /* Taille de police augmentée */
}

textarea.form-control:focus {
    min-height: 160px;
}

/* Style pour les champs de mot de passe */
.password-input {
    position: relative;
    width: 80%;
    max-width: 600px;
    margin: 0 auto 15px;
}

.password-input input[type="password"],
.password-input input[type="text"] {
    width: 100%;
    margin: 0;
    padding-right: 35px; /* Espace pour l'icône */
}

.password-toggle {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #6c757d;
    color: var(--text-light);
    cursor: pointer;
    padding: 10px;
    border-radius: 50%;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px; /* Augmenté */
    height: 52px; /* Augmenté */
    font-size: 1.5rem; /* Taille d'icône augmentée */
    opacity: 0.8;
}

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

.password-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(249, 106, 36, 0.3);
}

.password-toggle i {
    font-size: 1.1rem;
    transition: var(--transition);
}

/* Style pour les champs en focus */
.form-control:focus {
    color: var(--text);
    background-color: var(--light);
    border-color: var(--primary);
    outline: 0;
    box-shadow: 0 0 0 3px rgba(249, 106, 36, 0.2);
    transform: translateY(-1px);
}

/* Style pour les champs désactivés et en lecture seule */
.form-control:disabled,
.form-control[readonly] {
    background-color: #f8f9fa;
    border-color: #e9ecef;
    color: #6c757d;
    cursor: not-allowed;
    opacity: 1;
    box-shadow: none;
}

/* Groupe de mot de passe amélioré */
.password-input {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input .form-control {
    padding-right: 48px;
    width: 100%;
}

/* Style amélioré pour le bouton de bascule du mot de passe */
.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 5;
    width: 36px;
    height: 36px;
}

.toggle-password:hover {
    color: var(--primary);
    background-color: rgba(0, 0, 0, 0.04);
}

.toggle-password:focus {
    outline: none;
    color: var(--primary);
    box-shadow: 0 0 0 3px rgba(249, 106, 36, 0.15);
}

.toggle-password i {
    font-size: 1.1em;
    transition: transform 0.2s ease;
}

.toggle-password.active i {
    color: var(--primary);
}

/* Indicateur de force du mot de passe */
.password-strength {
    height: 4px;
    background-color: #e9ecef;
    border-radius: 2px;
    margin-top: 8px;
    overflow: hidden;
    position: relative;
}

.password-strength::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0;
    background-color: #e74c3c;
    transition: width 0.3s ease, background-color 0.3s ease;
}

.password-strength.weak::after {
    width: 30%;
    background-color: #e74c3c;
}

.password-strength.medium::after {
    width: 60%;
    background-color: #f39c12;
}

.password-strength.strong::after {
    width: 100%;
    background-color: #2ecc71;
}

/* Texte d'aide pour le mot de passe */
.password-hint {
    font-size: 0.8125rem;
    color: var(--text-light);
    margin-top: 6px;
    line-height: 1.4;
}

.password-hint.valid {
    color: var(--success);
}

.password-hint.invalid {
    color: var(--error);
}

/* Case à cocher */
.checkbox-group {
    display: flex;
    align-items: center;
    margin: 15px 0 25px;
}

.checkbox-group input[type="checkbox"] {
    margin-right: 10px;
    width: 18px;
    height: 18px;
}

/* Boutons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    text-transform: uppercase;
    white-space: nowrap;
    vertical-align: middle;
    user-select: none;
    border: 2px solid transparent;
    border-radius: 50px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    height:50px;
    width: 80%;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
    z-index: 1;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* Effet de fond animé */
.btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, var(--primary), #ff8c5a);
    z-index: -1;
    transition: opacity 0.3s ease;
    opacity: 1;
}

.btn:hover::after {
    opacity: 0.9;
}

/* Bouton principal */
.btn-primary {
    color: #fff;
    background: var(--primary);
    border-color: var(--primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(249, 106, 36, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(249, 106, 36, 0.3);
}

/* Bouton principal */
.btn-primary {
    color: var(--light);
    background-color: var(--primary);
    border-color: var(--primary);
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    box-shadow: 0 8px 25px rgba(249, 106, 36, 0.3);
    transform: translateY(-2px);
}

/* Bouton secondaire */
.btn-secondary {
    color: var(--dark);
    background-color: var(--secondary);
    border: 2px solid var(--primary);
    color: var(--primary);
    font-weight: 600;
}

.btn-secondary:hover {
    background-color: rgba(249, 106, 36, 0.1);
    border-color: var(--primary-hover);
    color: var(--primary-hover);
}

/* Bouton plein largeur */
.btn-block {
    display: flex;
    width: 100%;
    max-width: 320px;
    margin: 25px auto;
    justify-content: center;
}

/* Effet de vague au clic */
.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%, -50%);
    transform-origin: 50% 50%;
}

.btn:focus:not(:active)::after {
    animation: ripple 1s ease-out;
}

@keyframes ripple {
    0% {
        transform: scale(0, 0);
        opacity: 0.5;
    }
    100% {
        transform: scale(30, 30);
        opacity: 0;
    }
}

/* Bouton primaire */
.btn-primary {
    background-color: var(--primary);
    color: white;
    border: none;
    width: 100%;
    font-size: 1.05rem;
    letter-spacing: 0.3px;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(249, 106, 36, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(249, 106, 36, 0.3);
}

/* Bouton secondaire */
.btn-outline {
    background-color: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background-color: rgba(249, 106, 36, 0.1);
}

/* Bouton en bloc */
.btn-block {
    display: block;
    width: 100%;
}

/* Bouton désactivé */
.btn:disabled,
.btn.disabled {
    opacity: 0.65;
    cursor: not-allowed;
    pointer-events: none;
    transform: none !important;
    box-shadow: none !important;
}

/* Animation de chargement */
.btn-primary .loader {
  display: none;
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 18px;
  border: 3px solid #fff;
  border-top: 3px solid transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  transform: translate(-50%, -50%);
}

.btn-primary.loading .btn-text {
  visibility: hidden;
}

.btn-primary.loading .loader {
  display: block;
}

@keyframes spin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}
/* Effet de vague au clic */
.btn-ripple {
    position: absolute;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.7);
    transform: scale(0);
    animation: ripple 0.6s linear;
    pointer-events: none;
}

@keyframes ripple {
    to {
        transform: scale(2.5);
        opacity: 0;
    }
}
/* Séparateur */
.separator {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 25px 0;
    color: #777;
    font-size: 0.9rem;
}

.separator::before,
.separator::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid #ddd;
}

.separator:not(:empty)::before {
    margin-right: 1em;
}

.separator:not(:empty)::after {
    margin-left: 1em;
}

/* Messages d'erreur et états */
.error-message {
    color: var(--error);
    font-size: 0.85rem;
    margin-top: 6px;
    display: block;
    font-weight: 500;
    line-height: 1.4;
    opacity: 0;
    height: 0;
    overflow: hidden;
    transition: opacity 0.3s ease, height 0.3s ease;
}

.form-control.error {
    border-color: var(--error);
    padding-right: 50px;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23e74c3c' viewBox='0 0 24 24'%3e%3cpath d='M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm1 15h-2v-2h2v2zm0-4h-2V7h2v6z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 20px center;
    background-size: 20px 20px;
    animation: shake 0.5s cubic-bezier(.36,.07,.19,.97) both;
    transform: translate3d(0, 0, 0);
    backface-visibility: hidden;
    perspective: 1000px;
}

@keyframes shake {
    10%, 90% { transform: translate3d(-1px, 0, 0); }
    20%, 80% { transform: translate3d(2px, 0, 0); }
    30%, 50%, 70% { transform: translate3d(-3px, 0, 0); }
    40%, 60% { transform: translate3d(3px, 0, 0); }
}

.form-control.valid {
    border-color: var(--success);
    padding-right: 40px;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%232ecc71' viewBox='0 0 12 12'%3e%3cpath d='M10 3L4.5 8.5 2 6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px 16px;
}

.form-group.error .error-message {
    opacity: 1;
    height: auto;
    margin-top: 8px;
}

/* Style pour les champs requis */
.form-group.required label::after {
    content: ' *';
    color: var(--error);
    margin-left: 2px;
}

/* Navigation du formulaire */
.form-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space) 5%;
    background-color: var(--light);
    box-shadow: var(--shadow-sm);
    position: relative;
    z-index: 10;
}

.form-nav .logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
    text-decoration: none;
}

/* Style pour le bouton de retour */
.back-home {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 10px 16px;
    background-color: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.9375rem;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.back-home:hover {
    background-color: var(--primary-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.back-home:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.back-home i {
    font-size: 0.9em;
    transition: transform 0.2s ease;
}

.back-home:hover i {
    transform: translateX(-2px);
}

/* Styles pour les très petits écrans (téléphones en mode portrait) */
@media (max-width: 480px) {
    .form-card {
        padding: var(--space);
        margin: var(--space-xs);
        border-radius: var(--radius);
    }
    
    .form-group {
        margin-bottom: var(--space);
    }
    
    .form-control {
        padding: 12px 14px;
        height: 48px;
        font-size: 1rem;
    }
    
    .btn {
        height: 48px;
        padding: 0 var(--space);
    }
}

/* Styles pour les petits écrans (téléphones en mode paysage) */
@media (min-width: 481px) and (max-width: 768px) {
    .form-card {
        padding: var(--space-lg) var(--space);
        margin: var(--space-sm);
        border-radius: var(--radius-lg);
    }
    
    .form-card h1 {
        font-size: 1.625rem;
        margin-bottom: var(--space-xs);
    }
    
    .form-subtitle {
        font-size: 1rem;
        margin-bottom: var(--space-md);
    }
    
    .form-control {
        height: 48px;
    }
    
    .btn {
        height: 48px;
    }
}

/* Styles pour les tablettes */
@media (min-width: 769px) and (max-width: 1024px) {
    .form-card {
        max-width: 600px;
        margin: var(--space-lg) auto;
        padding: var(--space-xl);
    }
    
    .form-card h1 {
        font-size: 1.75rem;
    }
}

/* Styles pour les ordinateurs portables */
@media (min-width: 1025px) and (max-width: 1599px) {
    .form-card {
        max-width: 500px;
        margin: var(--space-xl) auto;
    }
}

/* Styles pour les grands écrans */
@media (min-width: 1600px) {
    .form-card {
        max-width: 500px;
        margin: 40px auto;
    }
}

/* Styles communs pour les écrans mobiles */
@media (max-width: 768px) {
    .back-home span {
        display: none;
    }
    
    .back-home i {
        margin: 0;
        font-size: 1.1em;
    }
    
    .form-nav {
        padding: 15px 20px;
    }
}