/**
 * Favorites System Styles
 * Stili per il sistema di preferiti
 *
 * @version 1.1.0
 */

/* ==========================================
 * FAVORITE BUTTON
 * ========================================== */

.favorite-container {
    position: relative;
    display: inline-block;
}

.favorite-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    font-size: 1.5rem;
    line-height: 1;
    transition: transform 0.2s ease, opacity 0.2s ease;
    outline: none;
    position: relative;
    z-index: 10;
}

.favorite-btn:hover {
    transform: scale(1.2);
}

.favorite-btn:active {
    transform: scale(0.9);
}

.favorite-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.favorite-btn:focus {
    outline: 2px solid #4CAF50;
    outline-offset: 2px;
    border-radius: 4px;
}

.favorite-icon {
    display: inline-block;
    transition: transform 0.3s ease;
}

.favorite-btn:hover .favorite-icon {
    animation: heartbeat 0.6s ease-in-out;
}

/* Animazione heartbeat */
@keyframes heartbeat {
    0%, 100% {
        transform: scale(1);
    }
    25% {
        transform: scale(1.2);
    }
    50% {
        transform: scale(1.1);
    }
    75% {
        transform: scale(1.25);
    }
}

/* ==========================================
 * FAVORITE BUTTON IN CARDS
 * ========================================== */

/* Nelle card risultati di ricerca */
.result-card .card-header {
    position: relative;
}

.result-card .favorite-container {
    position: absolute;
    top: 0;
    right: 0;
}

/* Nelle card alimenti */
.alimento-card .favorite-container {
    position: absolute;
    top: 10px;
    right: 10px;
}

.alimento-card {
    position: relative;
}

/* Nella tabella */
.alimento-row .favorite-container {
    display: inline-block;
    margin-left: 10px;
}

/* Nel dettaglio alimento */
.alimento-detail-header .favorite-container {
    margin-left: auto;
}

/* ==========================================
 * NOTIFICATIONS
 * ========================================== */

.favorites-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 20px;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    font-size: 14px;
    font-weight: 500;
    z-index: 10000;
    opacity: 0;
    transform: translateX(100px);
    transition: all 0.3s ease;
    max-width: 300px;
}

.favorites-notification.show {
    opacity: 1;
    transform: translateX(0);
}

.favorites-notification-success {
    background: #4CAF50;
    color: white;
}

.favorites-notification-error {
    background: #f44336;
    color: white;
}

.favorites-notification-info {
    background: #2196F3;
    color: white;
}

/* ==========================================
 * FAVORITES PAGE
 * ========================================== */

.favorites-page {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.favorites-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e0e0e0;
}

.favorites-header h1 {
    margin: 0;
    font-size: 2rem;
    color: #333;
}

.favorites-count {
    font-size: 1rem;
    color: #666;
    font-weight: normal;
}

.favorites-actions {
    display: flex;
    gap: 10px;
}

.favorites-empty {
    text-align: center;
    padding: 60px 20px;
    color: #999;
}

.favorites-empty-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.favorites-empty p {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.favorites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

/* Card nei preferiti */
.favorite-card {
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 20px;
    position: relative;
    transition: all 0.3s ease;
}

.favorite-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.favorite-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 15px;
}

.favorite-card-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #333;
    margin: 0;
}

.favorite-card-category {
    display: inline-block;
    padding: 4px 8px;
    background: #f0f0f0;
    border-radius: 4px;
    font-size: 0.85rem;
    color: #666;
    margin-top: 8px;
}

.favorite-card-nickel {
    margin: 15px 0;
    padding: 10px;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
}

.favorite-card-nickel.safe {
    background: #e8f5e9;
    color: #2e7d32;
}

.favorite-card-nickel.avoid {
    background: #ffebee;
    color: #c62828;
}

.favorite-card-nickel.variable {
    background: #fff3e0;
    color: #ef6c00;
}

.favorite-card-note {
    font-size: 0.9rem;
    color: #666;
    margin: 10px 0;
    font-style: italic;
}

.favorite-card-date {
    font-size: 0.8rem;
    color: #999;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #f0f0f0;
}

.favorite-card-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.favorite-card-actions button {
    flex: 1;
    padding: 8px 12px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.favorite-card-actions .btn-view {
    background: #2196F3;
    color: white;
}

.favorite-card-actions .btn-view:hover {
    background: #1976D2;
}

.favorite-card-actions .btn-remove {
    background: #f44336;
    color: white;
}

.favorite-card-actions .btn-remove:hover {
    background: #d32f2f;
}

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

@media (max-width: 768px) {
    .favorites-notification {
        top: 10px;
        right: 10px;
        left: 10px;
        max-width: none;
    }

    .favorites-header {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }

    .favorites-grid {
        grid-template-columns: 1fr;
    }

    .favorite-btn {
        font-size: 1.3rem;
        padding: 6px;
    }
}

@media (max-width: 480px) {
    .favorites-page {
        padding: 10px;
    }

    .favorites-header h1 {
        font-size: 1.5rem;
    }

    .favorite-card {
        padding: 15px;
    }

    .favorite-card-actions {
        flex-direction: column;
    }
}

/* ==========================================
 * DARK MODE SUPPORT (opzionale)
 * ========================================== */

@media (prefers-color-scheme: dark) {
    .favorite-btn:focus {
        outline-color: #66BB6A;
    }

    .favorites-notification {
        background: #333;
        color: #fff;
    }

    .favorite-card {
        background: #2c2c2c;
        border-color: #444;
    }

    .favorite-card-title {
        color: #fff;
    }

    .favorite-card-category {
        background: #444;
        color: #ccc;
    }

    .favorite-card-date {
        color: #999;
        border-top-color: #444;
    }
}

/* ==========================================
 * ACCESSIBILITY
 * ========================================== */

/* Aumenta area cliccabile su mobile */
@media (hover: none) {
    .favorite-btn {
        padding: 12px;
        font-size: 1.8rem;
    }
}

/* Riduci animazioni per chi preferisce */
@media (prefers-reduced-motion: reduce) {
    .favorite-btn,
    .favorite-icon,
    .favorites-notification,
    .favorite-card {
        animation: none;
        transition: none;
    }
}

/* Focus visibile per navigazione da tastiera */
.favorite-btn:focus-visible {
    outline: 3px solid #4CAF50;
    outline-offset: 3px;
}