/**
 * Composants réutilisables - Littébac
 */

/* Boutons - Design moderne et studieux */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    font-family: var(--font-family-base);
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    line-height: 1.5;
    letter-spacing: var(--letter-spacing-normal);
    position: relative;
    overflow: hidden;
}

.btn::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 var(--transition-slow);
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
    border: 2px solid transparent;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--color-white);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.btn-secondary:active {
    transform: translateY(0);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    box-shadow: none;
}

.btn-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.btn-outline:active {
    transform: translateY(0);
}

.btn:disabled,
.btn-disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: var(--color-gray-300);
    color: var(--color-gray-600);
    border-color: var(--color-gray-300);
}

.btn-disabled:hover {
    transform: none;
    box-shadow: none;
}

/* Badges */
.badge {
    display: inline-block;
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--border-radius-full);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wider);
}

.badge-success {
    background-color: var(--color-success-light);
    color: var(--color-success);
}

.badge-error {
    background-color: var(--color-error-light);
    color: var(--color-error);
}

.badge-warning {
    background-color: var(--color-warning-light);
    color: var(--color-warning);
}

.badge-info {
    background-color: var(--color-info-light);
    color: var(--color-info);
}

/* Alertes - Design doux et professionnel */
.alert {
    padding: var(--spacing-5) var(--spacing-6);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-5);
    border-left: 4px solid;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
}

.alert-success {
    background-color: var(--color-success-bg);
    border-color: var(--color-success);
    color: var(--color-success);
}

.alert-error {
    background-color: var(--color-error-bg);
    border-color: var(--color-error);
    color: var(--color-error);
}

.alert-warning {
    background-color: var(--color-warning-bg);
    border-color: var(--color-warning);
    color: var(--color-warning);
}

.alert-info {
    background-color: var(--color-info-bg);
    border-color: var(--color-info);
    color: var(--color-info);
}

/* Cards - Design élégant et studieux */
.card {
    background: var(--gradient-card);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-8);
    transition: all var(--transition-base);
    border: 1px solid var(--color-gray-200);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
    border-color: var(--color-primary-light);
}

.card:hover::before {
    transform: scaleX(1);
}

.card-header {
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-5);
    border-bottom: 2px solid var(--color-gray-200);
}

.card-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: 0;
    color: var(--color-gray-900);
    font-family: var(--font-family-heading);
    letter-spacing: var(--letter-spacing-tight);
    line-height: var(--line-height-tight);
}

.card-body {
    color: var(--color-gray-700);
    line-height: var(--line-height-relaxed);
}

/* Formulaires - Design moderne et accessible */
.form-group {
    margin-bottom: var(--spacing-6);
}

.form-label {
    display: block;
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-800);
    margin-bottom: var(--spacing-3);
    font-size: var(--font-size-sm);
    letter-spacing: var(--letter-spacing-wide);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-4) var(--spacing-5);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-gray-900);
    background-color: var(--color-white);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-base);
    font-family: var(--font-family-base);
    letter-spacing: var(--letter-spacing-normal);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(107, 68, 35, 0.1);
    background-color: var(--color-white);
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
    border-color: var(--color-gray-400);
}

.form-input::placeholder {
    color: var(--color-gray-400);
}

.form-error {
    display: block;
    color: var(--color-error);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-1);
}

.form-help {
    display: block;
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-1);
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.form-checkbox input[type="checkbox"] {
    width: 1.25rem;
    height: 1.25rem;
    cursor: pointer;
}

/* Barre de progression - Design motivant */
.progress-bar {
    width: 100%;
    height: 1rem;
    background-color: var(--color-gray-200);
    border-radius: var(--border-radius-full);
    overflow: hidden;
    margin: var(--spacing-3) 0;
    box-shadow: var(--shadow-inner);
    position: relative;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-full);
    transition: width var(--transition-slow);
    position: relative;
    box-shadow: 0 2px 4px rgba(107, 68, 35, 0.2);
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Grid */
.grid {
    display: grid;
    gap: var(--spacing-6);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* Responsive grid */
@media (max-width: 768px) {
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Modal - Popup d'invitation à s'inscrire ou se connecter */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
    pointer-events: none;
}

.modal.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(42, 24, 16, 0.75); /* Marron noir avec transparence */
    backdrop-filter: blur(4px);
    cursor: pointer;
}

.modal-content {
    position: relative;
    background: var(--gradient-card);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-2xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-base);
    z-index: 1;
    border: 2px solid var(--color-gray-200);
}

.modal.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: var(--spacing-4);
    right: var(--spacing-4);
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-gray-100);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--border-radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    z-index: 10;
    color: var(--color-gray-700);
    font-size: var(--font-size-2xl);
    line-height: 1;
    padding: 0;
}

.modal-close:hover {
    background-color: var(--color-error-light);
    border-color: var(--color-error);
    color: var(--color-error);
    transform: rotate(90deg);
}

.modal-close:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.modal-close span {
    display: block;
    font-weight: var(--font-weight-bold);
    line-height: 1;
}

.modal-header {
    padding: var(--spacing-8) var(--spacing-8) var(--spacing-6);
    border-bottom: 2px solid var(--color-gray-200);
}

.modal-header h2 {
    margin: 0;
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    font-family: var(--font-family-heading);
    letter-spacing: var(--letter-spacing-tight);
}

.modal-body {
    padding: var(--spacing-6) var(--spacing-8);
}

.modal-body p {
    margin: 0 0 var(--spacing-4) 0;
    color: var(--color-gray-700);
    line-height: var(--line-height-relaxed);
    font-size: var(--font-size-base);
}

.modal-body p:last-child {
    margin-bottom: 0;
}

.modal-subtitle {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    font-style: italic;
}

.modal-footer {
    padding: var(--spacing-6) var(--spacing-8) var(--spacing-8);
    border-top: 2px solid var(--color-gray-200);
    display: flex;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

.modal-footer .btn {
    flex: 1;
    min-width: 150px;
}

/* Responsive modal */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        max-height: 95vh;
        border-radius: var(--border-radius-lg);
    }
    
    .modal-header,
    .modal-body,
    .modal-footer {
        padding-left: var(--spacing-6);
        padding-right: var(--spacing-6);
    }
    
    .modal-header {
        padding-top: var(--spacing-6);
    }
    
    .modal-footer {
        flex-direction: column;
    }
    
    .modal-footer .btn {
        width: 100%;
    }
}