/* =============================================
   Project Gallery Pro — Public Styles
   ============================================= */

/* ---------- CSS Custom Properties ---------- */
:root {
    --pgp-accent:        #000000;
    --pgp-accent-light:  #000000;
    --pgp-highlight:     #000000;
    --pgp-white:         #ffffff;
    --pgp-overlay-bg:    rgba(0, 0, 0, 0.88);
    --pgp-filter-bg:     #f4f4f8;
    --pgp-filter-active: #000000;
    --pgp-radius:        8px;
    --pgp-gap:           16px;
    --pgp-transition:    0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --pgp-shadow:        0 8px 32px rgba(0,0,0,0.18);
    --pgp-font:          "Montserrat", Sans-serif;
}

/* ---------- Gallery Section ---------- */
.pgp-gallery-section {
    font-family: var(--pgp-font);
    width: 100%;
    padding: 0 0 48px;
}

/* ---------- Filter Buttons ---------- */
.pgp-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 36px;
}

.pgp-filter-btn {
    padding: 8px 22px;
    background: var(--pgp-filter-bg);
    color: #444;
    border: 2px solid transparent;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background var(--pgp-transition), color var(--pgp-transition), border-color var(--pgp-transition);
}

.pgp-filter-btn:hover,
.pgp-filter-btn.active {
    background: var(--pgp-filter-active);
    color: var(--pgp-white);
    border-color: var(--pgp-filter-active);
}

/* ---------- Grid ---------- */
.pgp-grid {
    display: grid;
    grid-template-columns: repeat(var(--pgp-columns, 3), 1fr);
    gap: var(--pgp-gap);
    align-items: start;
}

/* Masonry via JS (column-count fallback) */
.pgp-masonry {
    display: block;
    column-count: var(--pgp-columns, 3);
    column-gap: var(--pgp-gap);
}

.pgp-masonry .pgp-item {
    break-inside: avoid;
    margin-bottom: var(--pgp-gap);
}

/* ---------- Project Item ---------- */
.pgp-item {
    border-radius: var(--pgp-radius);
    overflow: hidden;
    box-shadow: 0 4px 14px rgba(0,0,0,0.1);
    transition: box-shadow var(--pgp-transition), transform var(--pgp-transition);
}

.pgp-item.pgp-hidden {
    display: none;
}

.pgp-item:hover {
    box-shadow: var(--pgp-shadow);
    transform: translateY(-4px);
}

.pgp-item-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.pgp-item-inner {
    position: relative;
    overflow: hidden;
    background: #1a1a2e;
}

/* ---------- Item Image ---------- */
.pgp-item-img {
    display: block;
    width: 100%;
    height: auto;
    transition: transform var(--pgp-transition), filter var(--pgp-transition);
    transform-origin: center;
}

.pgp-item:hover .pgp-item-img {
    transform: scale(1.08);
    filter: brightness(0.7);
}

/* ---------- Hover Overlay ---------- */
.pgp-item-overlay {
    position: absolute;
    inset: 0;
    background: var(--pgp-overlay-bg);
    display: flex;
    align-items: flex-end;
    padding: 20px;
    opacity: 0;
    transition: opacity var(--pgp-transition);
}

.pgp-item:hover .pgp-item-overlay {
    opacity: 1;
}

.pgp-item-info {
    transform: translateY(12px);
    transition: transform var(--pgp-transition);
}

.pgp-item:hover .pgp-item-info {
    transform: translateY(0);
}

.pgp-item-title {
    margin: 0 0 4px;
    font-size: 17px;
    font-weight: 700;
    color: var(--pgp-white);
    line-height: 1.3;
}

.pgp-item-cats {
    display: block;
    font-size: 12px;
    color: rgba(255,255,255,0.65);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 10px;
}

.pgp-item-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    background: var(--pgp-highlight);
    border-radius: 50%;
    color: #fff;
    font-size: 14px;
}

/* ---------- No Projects ---------- */
.pgp-no-projects {
    text-align: center;
    padding: 40px;
    color: #777;
    font-style: italic;
}

/* =============================================
   Single Project Page
   ============================================= */

.pgp-single-wrap {
    font-family: var(--pgp-font);
    max-width: 1100px;
    margin: 0 auto;
    padding: 40px 24px 60px;
}

.pgp-single-inner {
    max-width: 960px;
    margin: 0 auto;
}

/* Header */
.pgp-single-header {
    margin-bottom: 32px;
    text-align: center;
}

.pgp-single-meta {
    margin-bottom: 10px;
}

.pgp-single-cats a {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--pgp-highlight);
    text-decoration: none;
}

.pgp-single-title {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--pgp-accent);
    margin: 0;
    line-height: 1.25;
}

/* ---------- Slider ---------- */
.pgp-slider-wrap {
    margin-bottom: 36px;
    border-radius: var(--pgp-radius);
    overflow: hidden;
    box-shadow: var(--pgp-shadow);
}

.pgp-slider {
    position: relative;
    background: #0d0d1a;
    overflow: hidden;
}

.pgp-slider-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.pgp-slide {
    min-width: 100%;
    position: relative;
}

.pgp-slide-img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 600px;
    object-fit: contain;
}

.pgp-slide-img.pgp-lightbox-trigger {
    cursor: zoom-in;
}

/* Slider buttons */
.pgp-slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(6px);
    color: #fff;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    width: 46px;
    height: 46px;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--pgp-transition);
}

.pgp-slider-btn:hover {
    background: rgba(255,255,255,0.3);
}

.pgp-slider-prev { left: 16px; }
.pgp-slider-next { right: 16px; }

.pgp-slider-counter {
    position: absolute;
    bottom: 14px;
    right: 18px;
    background: rgba(0,0,0,0.55);
    color: #fff;
    font-size: 13px;
    padding: 4px 12px;
    border-radius: 20px;
    pointer-events: none;
}

/* ---------- Thumbnails ---------- */
.pgp-thumbnails {
    display: flex;
    gap: 8px;
    padding: 12px;
    background: #f2f2f5;
    overflow-x: auto;
    scrollbar-width: thin;
}

.pgp-thumb {
    flex: 0 0 auto;
    width: 72px;
    height: 54px;
    border: 2px solid transparent;
    border-radius: 4px;
    overflow: hidden;
    padding: 0;
    background: transparent;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity var(--pgp-transition), border-color var(--pgp-transition);
}

.pgp-thumb.active,
.pgp-thumb:hover {
    opacity: 1;
    border-color: var(--pgp-highlight);
}

.pgp-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ---------- Single Content ---------- */
.pgp-single-content {
    font-size: 16px;
    line-height: 1.75;
    color: #333;
    margin-bottom: 32px;
}

.pgp-back-link {
    margin-top: 20px;
}

.pgp-back-link a {
    color: var(--pgp-accent);
    font-weight: 600;
    text-decoration: none;
    font-size: 14px;
    transition: color var(--pgp-transition);
}

.pgp-back-link a:hover {
    color: var(--pgp-highlight);
}

/* =============================================
   Lightbox
   ============================================= */

.pgp-lightbox-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    z-index: 99998;
    backdrop-filter: blur(4px);
}

.pgp-lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.pgp-lightbox.pgp-active,
.pgp-lightbox-overlay.pgp-active {
    display: flex;
}

.pgp-lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    text-align: center;
}

.pgp-lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.6);
    display: block;
}

#pgp-lightbox-caption {
    margin: 12px 0 0;
    color: rgba(255,255,255,0.75);
    font-size: 14px;
}

.pgp-lightbox-close {
    position: fixed;
    top: 20px;
    right: 24px;
    z-index: 100000;
    background: rgba(255,255,255,0.1);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    width: 42px;
    height: 42px;
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--pgp-transition);
}

.pgp-lightbox-close:hover {
    background: var(--pgp-highlight);
    border-color: var(--pgp-highlight);
}

/* =============================================
   Responsive
   ============================================= */

@media (max-width: 1024px) {
    .pgp-grid {
        grid-template-columns: repeat(min(var(--pgp-columns, 3), 2), 1fr);
    }
    .pgp-masonry {
        column-count: min(var(--pgp-columns, 3), 2);
    }
}

@media (max-width: 640px) {
    .pgp-grid {
        grid-template-columns: 1fr;
    }
    .pgp-masonry {
        column-count: 1;
    }
    .pgp-single-title {
        font-size: 1.6rem;
    }
    .pgp-slide-img {
        max-height: 350px;
    }
}