/* =============================================================
   FILE: assets/css/portfolio.css
   PURPOSE: Styles for portfolio.php grid, filters and lightbox.
   ============================================================= */

/* ─────────────────────────────────────────────────────────────
   PORTFOLIO PAGE SECTION
   ───────────────────────────────────────────────────────────── */
.portfolio-page-section { padding-block: var(--section-gap); }

/* ── FILTER BUTTONS ── */
.portfolio-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 56px;
}

.filter-btn {
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-muted);
    background: var(--bg-surface);
    border: 1px solid var(--border-faint);
    border-radius: var(--radius-pill);
    padding: 10px 22px;
    cursor: pointer;
    transition: all var(--duration-med) var(--ease);
}

.filter-btn:hover {
    color: var(--text-white);
    border-color: rgba(0,245,212,0.3);
    background: rgba(0,245,212,0.05);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--bg-base);
    border-color: transparent;
    font-weight: 600;
    box-shadow: var(--glow-primary);
}

/* ── PORTFOLIO GRID ── */
.portfolio-page-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    grid-auto-rows: 280px;
}

/* Featured items span 2 columns + 2 rows */
.portfolio-page-item--featured {
    grid-column: span 2;
    grid-row: span 2;
}

/* ── GRID ITEM ── */
.portfolio-page-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-surface);
    border: 1px solid var(--border-faint);
    cursor: pointer;
    /* Start hidden for filter animation */
    opacity: 0;
    transform: scale(0.96);
    transition: opacity 0.3s ease, transform 0.3s ease,
                border-color var(--duration-med), box-shadow var(--duration-med);
}

.portfolio-page-item.visible {
    opacity: 1;
    transform: scale(1);
}

.portfolio-page-item:hover {
    border-color: rgba(0,245,212,0.3);
    box-shadow: 0 20px 48px rgba(0,0,0,0.4);
}

/* ── ITEM IMAGE ── */
.portfolio-page-img {
    width: 100%;
    height: 100%;
    position: relative;
}

.portfolio-page-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--duration-slow) var(--ease);
}

.portfolio-page-item:hover .portfolio-page-img img {
    transform: scale(1.06);
}

/* Placeholder when image is missing */
.portfolio-page-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0,245,212,0.06), var(--bg-elevated));
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.portfolio-page-placeholder--show { display: flex; }

/* ── HOVER OVERLAY ── */
.portfolio-page-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(11,15,20,0.95) 0%, rgba(11,15,20,0.5) 50%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 28px;
    opacity: 0;
    transition: opacity var(--duration-med) var(--ease);
}

.portfolio-page-item:hover .portfolio-page-overlay { opacity: 1; }

.portfolio-page-cat {
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 8px;
    display: block;
}

.portfolio-page-name {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 6px;
    line-height: 1.3;
}

.portfolio-page-client {
    font-size: 0.78rem;
    color: var(--text-dimmer);
    display: block;
    margin-bottom: 14px;
}

/* View Project button inside overlay */
.portfolio-page-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--primary);
    background: rgba(0,245,212,0.1);
    border: 1px solid rgba(0,245,212,0.3);
    border-radius: var(--radius-pill);
    padding: 8px 16px;
    cursor: pointer;
    transition: background var(--duration-fast), color var(--duration-fast);
    align-self: flex-start;
}

.portfolio-page-btn:hover {
    background: var(--primary);
    color: var(--bg-base);
}


/* ─────────────────────────────────────────────────────────────
   LIGHTBOX
   ───────────────────────────────────────────────────────────── */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.lightbox[hidden] { display: none; }

/* Dark semi-transparent backdrop */
.lightbox-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(5, 8, 12, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* White glass panel */
.lightbox-panel {
    position: relative;
    z-index: 1;
    background: var(--bg-elevated);
    border: 1px solid var(--border-faint);
    border-radius: var(--radius-xl);
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    box-shadow: var(--shadow-lg);
    animation: lightboxIn 0.35s var(--ease-bounce);
}

@keyframes lightboxIn {
    from { opacity: 0; transform: scale(0.92) translateY(20px); }
    to   { opacity: 1; transform: scale(1)    translateY(0); }
}

/* Close button */
.lightbox-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.07);
    border: 1px solid var(--border-faint);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    cursor: pointer;
    z-index: 2;
    transition: background var(--duration-fast), color var(--duration-fast);
}

.lightbox-close:hover {
    background: rgba(255,255,255,0.15);
    color: var(--text-white);
}

/* Left: image */
.lightbox-img-wrap {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    border-radius: var(--radius-xl) 0 0 var(--radius-xl);
    background: var(--bg-surface);
}

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

.lightbox-img-placeholder {
    width: 100%;
    height: 100%;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    background: linear-gradient(135deg, rgba(0,245,212,0.05), var(--bg-elevated));
}

/* Right: content */
.lightbox-content {
    padding: 48px 40px;
    display: flex;
    flex-direction: column;
    gap: 0;
    justify-content: center;
}

.lightbox-cat {
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--primary);
    display: block;
    margin-bottom: 12px;
}

.lightbox-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.25;
}

.lightbox-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 20px;
}

.lightbox-tools {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 28px;
    font-size: 0.82rem;
}

.lightbox-tools-label {
    color: var(--text-dimmer);
}

.lightbox-tools-val {
    color: var(--primary);
    font-weight: 500;
}


/* ─────────────────────────────────────────────────────────────
   RESPONSIVE
   ───────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .portfolio-page-grid           { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 240px; }
    .portfolio-page-item--featured { grid-column: span 2; grid-row: span 1; }
    .lightbox-panel                { grid-template-columns: 1fr; max-width: 500px; }
    .lightbox-img-wrap             { border-radius: var(--radius-xl) var(--radius-xl) 0 0; aspect-ratio: 16/9; }
    .lightbox-content              { padding: 32px; }
}

@media (max-width: 768px) {
    .portfolio-page-grid           { grid-template-columns: 1fr; grid-auto-rows: 220px; }
    .portfolio-page-item--featured { grid-column: span 1; }
    .portfolio-page-overlay        { opacity: 1; }
    .portfolio-filters             { gap: 8px; }
    .filter-btn                    { padding: 8px 16px; font-size: 0.78rem; }
}