/**
 * Sezione servizi con cards animate
 * Effetti 3D e animazioni di flip
 */

/* ========================================
   SERVIZI SECTION
   ======================================== */
.servizi-section {
    background-color: var(--neutral-gray-light);
    border-radius: var(--radius-xl);
    margin: var(--spacing-2xl) 0;
}

.servizi-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--default-grey);
    margin-bottom: var(--spacing-md);
}

.servizi-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    color: var(--dark-grey);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ========================================
   FLIPPING CARDS
   ======================================== */
.servizi-cols {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-lg);
}

.col {
    width: calc(33.333% - var(--spacing-lg));
    min-width: 280px;
    cursor: pointer;
    perspective: 1000px;
}

.container-card {
    transform-style: preserve-3d;
    perspective: 1000px;
    height: 280px;
}

.front,
.back {
    background-size: cover;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-lg);
    background-position: center;
    transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
    backface-visibility: hidden;
    text-align: center;
    height: 280px;
    border-radius: var(--radius-lg);
    color: var(--white);
    font-size: 1.5rem;
    position: absolute;
    width: 100%;
    top: 0;
    left: 0;
}

.back {
    background: linear-gradient(135deg, var(--light-green) 0%, var(--dark-green) 100%);
    transform: rotateY(180deg);
}

.front:after {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    width: 100%;
    height: 100%;
    content: '';
    display: block;
    opacity: 0.1;
    background-color: var(--default-grey);
    backface-visibility: hidden;
    border-radius: var(--radius-lg);
}

.container-card:hover .front,
.container-card:hover .back {
    transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
}

.container-card .front {
    transform: rotateY(0deg);
    transform-style: preserve-3d;
}

.container-card:hover .back {
    transform: rotateY(0deg);
    transform-style: preserve-3d;
}

.container-card:hover .front {
    transform: rotateY(-180deg);
    transform-style: preserve-3d;
}

.inner {
    transform: translateY(-50%) translateZ(60px) scale(0.94);
    top: 50%;
    position: absolute;
    left: 0;
    width: 100%;
    padding: var(--spacing-lg);
    box-sizing: border-box;
    outline: 1px solid transparent;
    perspective: inherit;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* Icone servizi */
.servizio-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.servizio-icon i {
    font-size: 2.5rem;
    color: var(--white);
}

.front .inner p {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    position: relative;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.front .inner p:after {
    content: '';
    width: 4rem;
    height: 2px;
    position: absolute;
    background: rgba(255, 255, 255, 0.7);
    display: block;
    left: 0;
    right: 0;
    margin: 0 auto;
    bottom: -0.75rem;
}

.front .inner span {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
    font-size: 1rem;
}

/* Back card content */
.back .inner p {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

.cta-servizio {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    text-decoration: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.938rem;
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.cta-servizio:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.cta-servizio i {
    font-size: 0.875rem;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media screen and (max-width: 1024px) {
    .col {
        width: calc(50% - var(--spacing-md));
        min-width: 260px;
    }
}

@media screen and (max-width: 768px) {
    .col {
        width: calc(50% - var(--spacing-sm));
        min-width: 240px;
    }
    
    .container-card {
        height: 260px;
    }
    
    .front,
    .back {
        height: 260px;
    }
    
    .servizio-icon {
        width: 60px;
        height: 60px;
        margin-bottom: var(--spacing-sm);
    }
    
    .servizio-icon i {
        font-size: 2rem;
    }
    
    .front .inner p {
        font-size: 1.5rem;
    }
}

@media screen and (max-width: 480px) {
    .col {
        width: 100%;
        max-width: 320px;
        margin: 0 auto;
    }
    
    .servizi-cols {
        flex-direction: column;
        align-items: center;
    }
    
    .container-card {
        height: 240px;
    }
    
    .front,
    .back {
        height: 240px;
    }
    
    .inner {
        padding: var(--spacing-md);
    }
    
    .servizio-icon {
        width: 50px;
        height: 50px;
    }
    
    .servizio-icon i {
        font-size: 1.75rem;
    }
    
    .front .inner p {
        font-size: 1.25rem;
    }
    
    .back .inner p {
        font-size: 0.938rem;
    }
}

/* ========================================
   ACCESSIBILITÀ
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    .container-card,
    .front,
    .back {
        transition: none;
    }
    
    .col:hover .container-card .front,
    .col:hover .container-card .back {
        transform: none;
    }
}

/* Focus per accessibilità */
.col:focus-within {
    outline: 3px solid var(--eni-yellow);
    outline-offset: 4px;
    border-radius: var(--radius-lg);
}