/* Stile per i pulsanti - Material Design */

/* Pulsanti tondi con solo icona */
.btn-icon-only {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    font-size: 1.2rem;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15), 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
    border: none;
    cursor: pointer;
    text-decoration: none !important;
}

.btn-icon-only i {
    text-decoration: none !important;
    border-bottom: none !important;
}

.btn-icon-only:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2), 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn-icon-only:active {
    transform: translateY(0) scale(0.95);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.05);
}

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

/* Colori dei pulsanti */
.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

.btn-success {
    background-color: var(--success-color);
    color: white;
}

.btn-success:hover {
    background-color: var(--success-hover);
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background-color: var(--danger-hover);
}

.btn-warning {
    background-color: var(--warning-color);
    color: white;
}

.btn-warning:hover {
    background-color: var(--warning-hover);
}

.btn-info {
    background-color: var(--info-color);
    color: white;
}

.btn-info:hover {
    background-color: var(--info-hover);
}

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

.btn-outline:hover {
    background-color: var(--primary-light);
}

/* Pulsanti di navigazione */
.action-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-xl);
    padding: 0 var(--spacing-md);
    width: 100%;
}

.action-buttons .btn-back {
    margin-right: auto;
}

.action-buttons .btn-forward {
    margin-left: auto;
}

/* Pulsanti di dimensione media */
.btn-md {
    width: 48px;
    height: 48px;
    font-size: 1rem;
}

/* Pulsanti di dimensione piccola */
.btn-sm {
    width: 40px;
    height: 40px;
    font-size: 0.9rem;
}

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

/* Responsive */
@media (max-width: 768px) {
    .btn-icon-only {
        width: 48px;
        height: 48px;
        font-size: 1.1rem;
    }
    
    .btn-md {
        width: 42px;
        height: 42px;
        font-size: 0.95rem;
    }
    
    .btn-sm {
        width: 36px;
        height: 36px;
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .btn-icon-only {
        width: 42px;
        height: 42px;
        font-size: 1rem;
    }
    
    .btn-md {
        width: 38px;
        height: 38px;
        font-size: 0.9rem;
    }
    
    .btn-sm {
        width: 32px;
        height: 32px;
        font-size: 0.8rem;
    }
}