/**
 * pilastri-servizio.css — Stili per la sezione Pilastri di Servizio (Expanding Cards Accordion)
 *
 * @package Frigotel
 */

/* =========================================================
   SERVICES PILLARS EXPANDING CARDS SECTION
   ========================================================= */

.services-pillars {
    background-color: var(--color-bianco);
    padding-block: var(--space-2xl);
    overflow: hidden;
}

/* --- Section Header --- */
.services-pillars__header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--space-l);
    margin-bottom: var(--space-xl);
}

.services-pillars__header-text {
    max-width: 760px;
}

.services-pillars__title {
    font-size: clamp(2rem, 3.5vw, 2.75rem);
    font-weight: var(--font-weight-bold);
    color: var(--color-blu-profondo);
    line-height: var(--line-height-heading);
    margin-bottom: var(--space-xs);
}

.services-pillars__subtitle {
    font-size: var(--text-body-large);
    color: var(--color-grigio-blu);
    line-height: var(--line-height-body);
    margin-bottom: 0;
}

/* Header Prev/Next Navigation Controls */
.services-pillars__nav {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    flex-shrink: 0;
}

.services-pillars__nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--color-bianco);
    border: 1.5px solid var(--color-azzurro-tenue);
    color: var(--color-blu-profondo);
    cursor: pointer;
    transition:
        background-color var(--transition-base),
        border-color var(--transition-base),
        color var(--transition-base),
        transform var(--transition-base);
}

.services-pillars__nav-btn:hover {
    background-color: var(--color-blu-primario);
    border-color: var(--color-blu-primario);
    color: var(--color-bianco);
    transform: scale(1.06);
}

.services-pillars__nav-btn:active {
    transform: scale(0.96);
}

.services-pillars__nav-btn svg {
    width: 20px;
    height: 20px;
    stroke-width: 2.2;
}

/* =========================================================
   EXPANDING CARDS GALLERY (DESKTOP & TABLET)
   ========================================================= */

.services-pillars__gallery {
    display: flex;
    gap: var(--space-m);
    min-height: 520px;
    height: 540px;
    width: 100%;
}

/* Individual Pillar Card */
.pillar-card {
    flex: 1 1 0%;
    height: 100%;
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    cursor: pointer;
    background-color: transparent;
    box-shadow: 0 10px 30px rgba(13, 46, 107, 0.08);
    transition:
        flex 0.55s cubic-bezier(0.25, 1, 0.5, 1),
        box-shadow 0.4s ease,
        transform 0.3s ease;
    user-select: none;
    outline: none;
    isolation: isolate;
    -webkit-mask-image: -webkit-radial-gradient(white, black);
}

.pillar-card:focus-visible {
    box-shadow: 0 0 0 3px var(--color-ciano-accento), 0 12px 36px rgba(13, 46, 107, 0.16);
}

/* Active (Expanded) State */
.pillar-card.is-active {
    flex: 2.8 1 0%;
    cursor: default;
    box-shadow: 0 20px 50px rgba(13, 46, 107, 0.18);
}

/* Card Media & Background Image */
.pillar-card__media {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background-color: transparent;
}

.pillar-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    border-radius: var(--radius-xl);
    transition:
        transform 0.8s cubic-bezier(0.25, 1, 0.5, 1),
        filter 0.4s ease;
    will-change: transform;
}

.pillar-card:not(.is-active):hover .pillar-card__img {
    transform: scale(1.06);
    filter: brightness(1.05);
}

/* Gradient Overlay: Lighter Primary Blue Scrim with Lower Coverage */
.pillar-card__overlay {
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    background: linear-gradient(
        180deg,
        rgba(0, 87, 168, 0) 0%,
        rgba(0, 87, 168, 0) 50%,
        rgba(0, 87, 168, 0.4) 75%,
        rgba(0, 70, 140, 0.8) 100%
    );
    transition: background 0.5s ease;
    pointer-events: none;
}

.pillar-card.is-active .pillar-card__overlay {
    background: linear-gradient(
        180deg,
        rgba(0, 87, 168, 0) 0%,
        rgba(0, 87, 168, 0) 45%,
        rgba(0, 87, 168, 0.35) 65%,
        rgba(0, 75, 145, 0.72) 85%,
        rgba(0, 65, 130, 0.86) 100%
    );
}

/* Collapsed View: Minimal Title Tag at the bottom of inactive card */
.pillar-card__collapsed-content {
    position: absolute;
    bottom: var(--space-l);
    left: 8px;
    right: 8px;
    z-index: 5;
    text-align: center;
    opacity: 1;
    transform: translateY(0);
    transition:
        opacity 0.25s ease 0.45s,
        transform 0.25s ease 0.45s;
    pointer-events: none;
}

.pillar-card.is-active .pillar-card__collapsed-content {
    opacity: 0;
    transform: translateY(10px);
    transition:
        opacity 0.15s ease 0s,
        transform 0.15s ease 0s;
}

.pillar-card__collapsed-title {
    display: block;
    font-size: clamp(1rem, 1.2vw, 1.25rem);
    font-weight: var(--font-weight-bold);
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.7);
    word-break: normal;
}

/* Expanded View: heading (the tag) plus the pillar statement */
.pillar-card__expanded-content {
    position: absolute;
    bottom: var(--space-xl);
    left: var(--space-xl);
    right: var(--space-xl);
    z-index: 6;
    max-width: 650px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(14px);
    transition:
        opacity 0.15s ease 0s,
        transform 0.15s ease 0s;
}

.pillar-card.is-active .pillar-card__expanded-content {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    transition:
        opacity 0.35s ease 0.5s,
        transform 0.35s ease 0.5s;
}

.pillar-card__tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-ciano-chiaro);
    margin-bottom: var(--space-2xs);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}

/* Same type treatment as .pillar-card__collapsed-title, so the tag does not
   change appearance when the card opens: only its position moves. */
.pillar-card__title {
    font-size: clamp(1rem, 1.2vw, 1.25rem);
    font-weight: var(--font-weight-bold);
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    line-height: 1.2;
    margin-bottom: var(--space-xs);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.7);
}

.pillar-card__desc {
    font-size: clamp(0.925rem, 1.1vw, 1.05rem);
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.65;
    margin-bottom: 0;
    text-shadow: 0 1px 6px rgba(0, 0, 0, 0.4);
}

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

@media (max-width: 1023px) {
    .services-pillars__gallery {
        height: 480px;
        min-height: 460px;
    }

    .pillar-card.is-active {
        flex: 4 1 0%;
    }

    .pillar-card__expanded-content {
        left: var(--space-l);
        right: var(--space-l);
        bottom: var(--space-l);
    }
}

@media (max-width: 767px) {
    .services-pillars {
        padding-block: var(--space-xl);
    }

    .services-pillars__header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-m);
        margin-bottom: var(--space-l);
    }

    .services-pillars__nav {
        display: none;
    }

    /* Vertical stack accordion on mobile devices */
    .services-pillars__gallery {
        flex-direction: column;
        height: auto;
        min-height: unset;
        gap: var(--space-s);
    }

    .pillar-card,
    .pillar-card__media,
    .pillar-card__img,
    .pillar-card__overlay {
        border-radius: var(--radius-l);
    }

    .pillar-card {
        flex: none;
        width: 100%;
        height: 84px;
        transition: height 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    }

    .pillar-card.is-active {
        flex: none;
        height: 380px;
    }

    .pillar-card__collapsed-content {
        top: 0;
        bottom: 0;
        left: var(--space-m);
        right: var(--space-m);
        display: flex;
        align-items: center;
        justify-content: flex-start;
        text-align: left;
    }

    .pillar-card__collapsed-title {
        font-size: 1.25rem;
    }

    .pillar-card__expanded-content {
        left: var(--space-m);
        right: var(--space-m);
        bottom: var(--space-m);
        max-width: 100%;
    }

    .pillar-card__title {
        font-size: 1.25rem;
        margin-bottom: 6px;
    }

    .pillar-card__desc {
        font-size: 0.85rem;
        line-height: 1.45;
    }
}