/* =============================================
   Portfolio Strutture Legno — portfolio.css
   ============================================= */

:root {
    --plg-col: 3;
    --plg-gap: 16px;
    --plg-radius: 6px;
    --plg-overlay-bg: rgba(10, 8, 4, 0.72);
    --plg-accent: #c8a96e;      /* oro caldo - legno */
    --plg-dark: #1a1710;
    --plg-text: #f5f0e8;
    --plg-grey: #6b6558;
    --plg-bg: #ffffff;
    --plg-single-bg: #faf9f6;
    --plg-transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Wrapper ---- */
.plg-portfolio {
    position: relative;
}

/* =============================================
   GRID
   ============================================= */
.plg-grid {
    display: grid;
    grid-template-columns: repeat(var(--plg-col), 1fr);
    gap: var(--plg-gap);
}

@media (max-width: 1024px) { .plg-grid { --plg-col: 2; } }
@media (max-width: 600px)  { .plg-grid { --plg-col: 1; } }

/* =============================================
   CARD
   ============================================= */
.plg-card {
    position: relative;
    cursor: pointer;
    border-radius: var(--plg-radius);
    overflow: hidden;
    outline: none;
    background: #e8e4dc;
    aspect-ratio: 4 / 3;
}

.plg-card:focus-visible {
    box-shadow: 0 0 0 3px var(--plg-accent);
}

.plg-card__img-wrap {
    position: relative;
    width: 100%;
    height: 100%;
}

.plg-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--plg-transition), filter var(--plg-transition);
}

.plg-card__img--placeholder {
    background: #d6d1c8;
    width: 100%;
    height: 100%;
}

/* Overlay con titolo e luogo */
.plg-card__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-start;
    padding: 16px;
    background: linear-gradient(to top, rgba(10,8,4,0.75) 0%, transparent 55%);
    opacity: 0;
    transition: opacity var(--plg-transition);
}

.plg-card:hover .plg-card__overlay,
.plg-card:focus-visible .plg-card__overlay {
    opacity: 1;
}

.plg-card:hover .plg-card__img {
    transform: scale(1.04);
}

.plg-card__title {
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 4px;
    line-height: 1.3;
    text-shadow: 0 1px 4px rgba(0,0,0,0.5);
}

.plg-card__luogo {
    color: rgba(255,255,255,0.85);
    font-size: 0.78rem;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 4px;
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}

/* =============================================
   LOAD MORE
   ============================================= */
.plg-load-more-wrap {
    text-align: center;
    margin-top: 40px;
}

.plg-load-more {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 32px;
    background: transparent;
    border: 1.5px solid var(--plg-accent);
    color: var(--plg-dark);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    cursor: pointer;
    border-radius: 2px;
    transition: background var(--plg-transition), color var(--plg-transition);
}

.plg-load-more:hover {
    background: var(--plg-accent);
    color: #fff;
}

.plg-load-more__spinner {
    display: none;
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: plg-spin 0.7s linear infinite;
}

.plg-load-more.is-loading .plg-load-more__spinner { display: block; }
.plg-load-more.is-loading .plg-load-more__text { opacity: 0.6; }

@keyframes plg-spin {
    to { transform: rotate(360deg); }
}

/* =============================================
   SINGLE VIEW
   ============================================= */
.plg-single {
    position: absolute;
    inset: 0;
    min-height: 100%;
    background: var(--plg-single-bg);
    z-index: 10;
    opacity: 0;
    pointer-events: none;
    transform: translateY(24px);
    transition: opacity var(--plg-transition), transform var(--plg-transition);
    border-radius: var(--plg-radius);
    overflow: hidden;
}

.plg-single.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

/* Tasto chiudi */
.plg-single__close {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 20px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--plg-dark);
    letter-spacing: 0.04em;
    transition: color var(--plg-transition);
    position: relative;
    z-index: 2;
}

.plg-single__close:hover {
    color: var(--plg-accent);
}

/* Layout interno */
.plg-single__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    min-height: calc(100% - 50px);
}

@media (max-width: 768px) {
    .plg-single__inner {
        grid-template-columns: 1fr;
    }
}

/* Colonna galleria */
.plg-single__gallery {
    position: relative;
    background: #1a1710;
    display: flex;
    flex-direction: column;
}

.plg-single__main-img-wrap {
    flex: 1;
    overflow: hidden;
    min-height: 300px;
}

.plg-single__main-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: opacity 0.25s ease;
}

.plg-single__main-img.is-fading {
    opacity: 0;
}

/* Thumbnails */
.plg-single__thumbs {
    display: flex;
    gap: 6px;
    padding: 10px;
    background: rgba(0,0,0,0.5);
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--plg-accent) transparent;
}

.plg-single__thumb {
    width: 60px;
    height: 48px;
    object-fit: cover;
    flex-shrink: 0;
    cursor: pointer;
    border: 2px solid transparent;
    border-radius: 3px;
    transition: border-color 0.2s, opacity 0.2s;
    opacity: 0.65;
}

.plg-single__thumb:hover,
.plg-single__thumb.is-active {
    border-color: var(--plg-accent);
    opacity: 1;
}

/* Colonna info */
.plg-single__info {
    padding: 40px 36px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    overflow-y: auto;
}

@media (max-width: 768px) {
    .plg-single__info { padding: 24px 20px; }
}

.plg-single__title {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--plg-dark);
    margin: 0;
    line-height: 1.2;
}

.plg-single__luogo {
    font-size: 0.85rem;
    color: var(--plg-accent);
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 5px;
}

.plg-single__luogo::before {
    content: '';
    display: inline-block;
    width: 5px;
    height: 5px;
    background: var(--plg-accent);
    border-radius: 50%;
}

.plg-single__desc {
    font-size: 0.95rem;
    line-height: 1.7;
    color: #3a3630;
    margin-top: 8px;
}

.plg-single__desc p { margin-bottom: 1em; }
.plg-single__desc p:last-child { margin-bottom: 0; }

/* Loader interno */
.plg-single__loader {
    position: absolute;
    inset: 0;
    background: var(--plg-single-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    z-index: 3;
}

.plg-single.is-loading .plg-single__loader {
    opacity: 1;
    pointer-events: auto;
}

.plg-single__loader-spin {
    width: 36px;
    height: 36px;
    border: 3px solid #ddd9d2;
    border-top-color: var(--plg-accent);
    border-radius: 50%;
    animation: plg-spin 0.8s linear infinite;
}

/* ---- Empty ---- */
.plg-empty {
    color: var(--plg-grey);
    font-style: italic;
}