/* ===== FORMULAIRES MODERNES ET AMÉLIORÉS ===== */

/* Variables pour les formulaires */
:root {
    --form-primary: #667eea;
    --form-secondary: #764ba2;
    --form-success: #10b981;
    --form-danger: #ef4444;
    --form-warning: #f59e0b;
    --form-info: #3b82f6;
    
    --form-bg: #ffffff;
    --form-bg-secondary: #f8fafc;
    --form-border: #e5e7eb;
    --form-border-focus: #667eea;
    --form-text: #1f2937;
    --form-text-muted: #6b7280;
    --form-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --form-shadow-focus: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* ===== CONTENEUR DE FORMULAIRE PRINCIPAL ===== */
.form-container {
    max-width: 600px;
    margin: 2rem auto;
    background: var(--form-bg);
    border-radius: 20px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    padding: 2.5rem;
    border: 1px solid var(--form-border);
    position: relative;
    overflow: hidden;
}

.form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb);
}

.form-container h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--form-text);
    font-weight: 700;
    font-size: 2rem;
    letter-spacing: -0.025em;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== GROUPES DE FORMULAIRES ===== */
.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--form-text);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    letter-spacing: 0.025em;
}

.form-group .required {
    color: var(--form-danger);
    margin-left: 0.25rem;
}

/* ===== CHAMPS DE FORMULAIRE ===== */
.form-control,
.form-select,
.form-textarea {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 2px solid var(--form-border);
    border-radius: 12px;
    font-size: 1rem;
    background: var(--form-bg);
    color: var(--form-text);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    font-family: inherit;
    position: relative;
}

.form-control:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--form-border-focus);
    box-shadow: var(--form-shadow-focus);
    background: var(--form-bg);
    transform: translateY(-1px);
}

.form-control::placeholder,
.form-textarea::placeholder {
    color: var(--form-text-muted);
    font-style: italic;
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
    line-height: 1.6;
}

/* ===== CHAMPS AVEC ICÔNES ===== */
.form-group-with-icon {
    position: relative;
}

.form-group-with-icon .form-control {
    padding-left: 3rem;
}

.form-group-with-icon .icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--form-text-muted);
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.form-group-with-icon .form-control:focus + .icon {
    color: var(--form-border-focus);
}

/* ===== VALIDATION DES FORMULAIRES ===== */
.form-control.is-valid {
    border-color: var(--form-success);
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
}

.form-control.is-invalid {
    border-color: var(--form-danger);
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
}

.invalid-feedback {
    display: block;
    color: var(--form-danger);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    font-weight: 500;
}

.valid-feedback {
    display: block;
    color: var(--form-success);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    font-weight: 500;
}

/* ===== CHECKBOXES ET RADIOS MODERNES ===== */
.form-check {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    padding: 0.75rem;
    border-radius: 12px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.form-check:hover {
    background: var(--form-bg-secondary);
}

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    margin-right: 0.75rem;
    border: 2px solid var(--form-border);
    border-radius: 4px;
    background: var(--form-bg);
    transition: all 0.3s ease;
    cursor: pointer;
}

.form-check-input:checked {
    background: var(--form-primary);
    border-color: var(--form-primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.form-check-label {
    font-weight: 500;
    color: var(--form-text);
    cursor: pointer;
    user-select: none;
}

/* ===== BOUTONS DE FORMULAIRE ===== */
.form-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-form {
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
    min-width: 120px;
    justify-content: center;
}

.btn-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
}

.btn-form:hover::before {
    left: 100%;
}

.btn-form-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 6px -1px rgba(102, 126, 234, 0.2);
}

.btn-form-primary:hover {
    background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
    color: white;
}

.btn-form-secondary {
    background: var(--form-bg-secondary);
    color: var(--form-text);
    border: 2px solid var(--form-border);
}

.btn-form-secondary:hover {
    background: var(--form-border);
    transform: translateY(-2px);
    color: var(--form-text);
}

.btn-form-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    box-shadow: 0 4px 6px -1px rgba(16, 185, 129, 0.2);
}

.btn-form-success:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.3);
    color: white;
}

.btn-form-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    box-shadow: 0 4px 6px -1px rgba(239, 68, 68, 0.2);
}

.btn-form-danger:hover {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(239, 68, 68, 0.3);
    color: white;
}

/* ===== FORMULAIRES DE CONNEXION/INSCRIPTION ===== */
.auth-form {
    max-width: 450px;
    margin: 3rem auto;
    background: var(--form-bg);
    border-radius: 24px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    padding: 3rem;
    border: 1px solid var(--form-border);
    position: relative;
    overflow: hidden;
}

.auth-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb);
}

.auth-form h2 {
    text-align: center;
    margin-bottom: 2.5rem;
    color: var(--form-text);
    font-weight: 800;
    font-size: 2.25rem;
    letter-spacing: -0.025em;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-form .form-group {
    margin-bottom: 1.75rem;
}

.auth-form .btn-form {
    width: 100%;
    padding: 1.25rem 2rem;
    font-size: 1.1rem;
    margin-top: 1.5rem;
}

/* ===== FORMULAIRES DE RÉSERVATION ===== */
.reservation-form-wrapper {
    max-width: 600px;
    margin: 2rem auto;
    background: var(--form-bg);
    border-radius: 20px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    padding: 2.5rem;
    border: 1px solid var(--form-border);
    position: relative;
    overflow: hidden;
}

.reservation-form-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb);
}

.reservation-form-wrapper h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--form-text);
    font-weight: 700;
    font-size: 2rem;
    letter-spacing: -0.025em;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.reservation-form-wrapper label {
    font-weight: 600;
    color: var(--form-text);
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    letter-spacing: 0.025em;
}

.reservation-form-wrapper .form-control,
.reservation-form-wrapper .form-select {
    border-radius: 12px;
    border: 2px solid var(--form-border);
    margin-bottom: 1.5rem;
    padding: 1rem 1.25rem;
    font-size: 1rem;
    background: var(--form-bg);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reservation-form-wrapper .form-control:focus,
.reservation-form-wrapper .form-select:focus {
    border-color: var(--form-border-focus);
    box-shadow: var(--form-shadow-focus);
    background: var(--form-bg);
    transform: translateY(-1px);
}

.reservation-form-wrapper .btn-form-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 1rem 2rem;
    font-weight: 600;
    font-size: 1.1rem;
    margin-right: 1rem;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 4px 6px -1px rgba(102, 126, 234, 0.2);
}

.reservation-form-wrapper .btn-form-primary:hover {
    background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
    color: white;
}

.reservation-form-wrapper .btn-form-secondary {
    background: var(--form-bg-secondary);
    color: var(--form-text);
    border: 2px solid var(--form-border);
    border-radius: 12px;
    padding: 1rem 2rem;
    font-weight: 500;
    font-size: 1.1rem;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reservation-form-wrapper .btn-form-secondary:hover {
    background: var(--form-border);
    transform: translateY(-2px);
    color: var(--form-text);
}

/* ===== ANIMATIONS ===== */
@keyframes formSlideIn {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.form-container,
.auth-form,
.reservation-form-wrapper {
    animation: formSlideIn 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .form-container,
    .auth-form,
    .reservation-form-wrapper {
        margin: 1rem;
        padding: 2rem;
        border-radius: 16px;
    }
    
    .form-container h2,
    .auth-form h2,
    .reservation-form-wrapper h2 {
        font-size: 1.75rem;
    }
    
    .form-buttons {
        flex-direction: column;
    }
    
    .btn-form {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .form-control,
    .form-select,
    .form-textarea {
        padding: 0.875rem 1rem;
    }
}

@media (max-width: 576px) {
    .form-container,
    .auth-form,
    .reservation-form-wrapper {
        margin: 0.5rem;
        padding: 1.5rem;
    }
    
    .form-container h2,
    .auth-form h2,
    .reservation-form-wrapper h2 {
        font-size: 1.5rem;
    }
    
    .btn-form {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
}

/* ===== MODE SOMBRE ===== */
@media (prefers-color-scheme: dark) {
    :root {
        --form-bg: #1f2937;
        --form-bg-secondary: #374151;
        --form-border: #374151;
        --form-text: #f9fafb;
        --form-text-muted: #d1d5db;
    }
    
    .form-container,
    .auth-form,
    .reservation-form-wrapper {
        background: var(--form-bg);
        border-color: var(--form-border);
    }
    
    .form-control,
    .form-select,
    .form-textarea {
        background: var(--form-bg);
        border-color: var(--form-border);
        color: var(--form-text);
    }
    
    .form-check:hover {
        background: var(--form-bg-secondary);
    }
}