/* ============================================================
   BIPIN THEME — Portfolio Gallery  v2.0
   All tokens inherit from CSS custom-properties in main.css
   ============================================================ */

/* ── Section wrapper ──────────────────────────────────────── */
#portfolio { background: var(--bg2); }
.portfolio-section { position: relative; }

/* ── Filter tabs ──────────────────────────────────────────── */
.portfolio-filter {
    display: flex;
    flex-wrap: wrap;
    gap: .55rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}
.portfolio-filter__btn {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    padding: .45rem 1rem;
    background: var(--bg3);
    border: 1px solid var(--border);
    color: var(--muted2);
    border-radius: 999px;
    font-size: .78rem;
    font-weight: 500;
    font-family: var(--font-body);
    cursor: pointer;
    transition: background var(--t), border-color var(--t), color var(--t), transform .15s;
    line-height: 1;
}
.portfolio-filter__btn:hover {
    border-color: var(--accent);
    color: #fff;
    transform: translateY(-1px);
}
.portfolio-filter__btn.is-active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    font-weight: 600;
}
.portfolio-filter__count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 18px;
    padding: 0 5px;
    background: rgba(255,255,255,.12);
    border-radius: 999px;
    font-size: .65rem;
    font-weight: 700;
    line-height: 1;
}
.portfolio-filter__btn.is-active .portfolio-filter__count { background: rgba(255,255,255,.25); }

/* ── Results bar ──────────────────────────────────────────── */
.portfolio-results-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    min-height: 30px;
}
.portfolio-results__text { font-size: .82rem; color: var(--muted); }
.portfolio-results__text strong { color: var(--text); }

/* View toggle */
.portfolio-view-toggle { display: flex; gap: .4rem; }
.portfolio-view-btn {
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg3); border: 1px solid var(--border);
    border-radius: var(--r-sm); color: var(--muted);
    cursor: pointer; transition: var(--t);
}
.portfolio-view-btn:hover, .portfolio-view-btn.is-active {
    background: var(--accent); border-color: var(--accent); color: #fff;
}

/* ── Grid layouts ─────────────────────────────────────────── */
.portfolio-grid {
    display: grid;
    gap: 1.2rem;
    position: relative;
    min-height: 300px;
}
.portfolio-grid.grid-3 { grid-template-columns: repeat(3, 1fr); }
.portfolio-grid.grid-2 { grid-template-columns: repeat(2, 1fr); }

/* ── Card ─────────────────────────────────────────────────── */
.portfolio-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    overflow: hidden;
    transition: border-color var(--t), transform .2s, box-shadow .2s;
    display: flex;
    flex-direction: column;

    /* Filter animation */
    opacity: 1;
    transform: scale(1) translateY(0);
}
.portfolio-card:hover {
    border-color: rgba(77,255,145,.35);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,.35);
}
.portfolio-card.is-hidden {
    opacity: 0;
    transform: scale(.92) translateY(12px);
    pointer-events: none;
    position: absolute;
    visibility: hidden;
}
.portfolio-card.is-entering {
    animation: cardEnter .35s ease forwards;
}
@keyframes cardEnter {
    from { opacity: 0; transform: scale(.94) translateY(16px); }
    to   { opacity: 1; transform: scale(1)   translateY(0); }
}

/* Card image */
.portfolio-card__image {
    position: relative;
    height: 200px;
    background-color: var(--bg3);
    background-size: cover;
    background-position: center;
    overflow: hidden;
    flex-shrink: 0;
}

/* Placeholder when no thumbnail */
.portfolio-card__placeholder {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    background: repeating-linear-gradient(
        45deg,
        var(--bg3),
        var(--bg3) 12px,
        var(--bg4) 12px,
        var(--bg4) 24px
    );
}
.portfolio-card__placeholder-icon { font-size: 2.5rem; opacity: .25; }

/* Hover overlay */
.portfolio-card__overlay {
    position: absolute; inset: 0;
    background: rgba(11,13,17,.82);
    display: flex; align-items: center; justify-content: center;
    opacity: 0;
    transition: opacity .25s;
    backdrop-filter: blur(4px);
}
.portfolio-card:hover .portfolio-card__overlay { opacity: 1; }
.portfolio-card__overlay-inner { display: flex; gap: .75rem; }

.portfolio-card__live-btn,
.portfolio-card__detail-btn {
    display: inline-flex; align-items: center; gap: .45rem;
    padding: .5rem 1.1rem;
    border-radius: var(--r-md);
    font-size: .78rem; font-weight: 600;
    transition: var(--t); cursor: pointer;
    font-family: var(--font-body);
    border: none;
}
.portfolio-card__live-btn {
    background: var(--accent); color: #fff;
}
.portfolio-card__live-btn:hover { opacity: .85; }
.portfolio-card__detail-btn {
    background: rgba(255,255,255,.1); color: #fff;
    border: 1px solid rgba(255,255,255,.15);
}
.portfolio-card__detail-btn:hover { background: rgba(255,255,255,.2); }

/* Category badge */
.portfolio-card__badge {
    position: absolute; top: .85rem; left: .85rem;
    background: var(--accent);
    color: #fff;
    font-size: .65rem; font-weight: 700;
    padding: .28rem .7rem;
    border-radius: 999px;
    letter-spacing: .04em; text-transform: uppercase;
    pointer-events: none;
}

/* Card body */
.portfolio-card__body {
    padding: 1.4rem;
    display: flex; flex-direction: column;
    gap: .6rem;
    flex: 1;
}
.portfolio-card__title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: .98rem;
    color: #fff;
    line-height: 1.3;
    margin: 0;
}
.portfolio-card__title a { color: inherit; transition: color var(--t); }
.portfolio-card__title a:hover { color: var(--accent); }
.portfolio-card__excerpt { font-size: .78rem; color: var(--muted); line-height: 1.6; margin: 0; }

.portfolio-card__meta {
    display: flex; gap: 1rem; flex-wrap: wrap;
    margin-top: auto;
}
.portfolio-card__client,
.portfolio-card__year {
    display: inline-flex; align-items: center; gap: .35rem;
    font-size: .72rem; color: var(--muted);
}
.portfolio-card__client svg,
.portfolio-card__year  svg { flex-shrink: 0; }

.portfolio-card__tags { display: flex; flex-wrap: wrap; gap: .35rem; }
.portfolio-card__tag {
    font-size: .65rem; padding: .2rem .55rem;
    border-radius: 4px; border: 1px solid var(--border);
    color: var(--muted); background: transparent;
    cursor: pointer; font-family: var(--font-body);
    transition: border-color var(--t), color var(--t);
}
.portfolio-card__tag:hover { border-color: var(--accent); color: var(--accent); }

/* ── Loading overlay ──────────────────────────────────────── */
.portfolio-loading {
    position: absolute; inset: 0; z-index: 10;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 1rem;
    background: rgba(11,13,17,.7);
    border-radius: var(--r-lg);
    opacity: 0; pointer-events: none;
    transition: opacity .2s;
    backdrop-filter: blur(4px);
}
.portfolio-section.is-loading .portfolio-loading { opacity: 1; pointer-events: all; }
.portfolio-loading__spinner {
    width: 36px; height: 36px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.portfolio-loading__text { font-size: .8rem; color: var(--muted2); }

/* ── Empty state ──────────────────────────────────────────── */
.portfolio-empty {
    grid-column: 1 / -1;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: .8rem; padding: 4rem 2rem; text-align: center;
}
.portfolio-empty__icon { font-size: 2.5rem; }
.portfolio-empty__text { color: var(--muted); font-size: .9rem; }

/* ── Pagination ───────────────────────────────────────────── */
.portfolio-pagination {
    display: flex; align-items: center;
    justify-content: center; gap: .5rem;
    margin-top: 2.5rem;
    flex-wrap: wrap;
}
.portfolio-pagination__btn {
    width: 38px; height: 38px;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg3); border: 1px solid var(--border);
    border-radius: var(--r-md); color: var(--muted);
    cursor: pointer; transition: var(--t);
    font-family: var(--font-body);
}
.portfolio-pagination__btn:hover:not(:disabled) { border-color: var(--accent); color: #fff; }
.portfolio-pagination__btn:disabled { opacity: .3; cursor: not-allowed; }

.portfolio-pagination__pages { display: flex; gap: .4rem; flex-wrap: wrap; justify-content: center; }
.portfolio-pagination__page {
    min-width: 38px; height: 38px; padding: 0 .5rem;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg3); border: 1px solid var(--border);
    border-radius: var(--r-md); color: var(--muted);
    font-size: .82rem; font-weight: 500; font-family: var(--font-body);
    cursor: pointer; transition: var(--t);
}
.portfolio-pagination__page:hover { border-color: var(--accent); color: #fff; }
.portfolio-pagination__page.is-active {
    background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 700;
}

/* Ellipsis for large page counts */
.portfolio-pagination__ellipsis {
    min-width: 38px; height: 38px;
    display: flex; align-items: center; justify-content: center;
    color: var(--muted); font-size: .82rem; pointer-events: none;
}

/* ── Single portfolio page ────────────────────────────────── */
.portfolio-single { padding: 5rem 0; }
.portfolio-single__header { margin-bottom: 3rem; }
.portfolio-single__image { border-radius: var(--r-xl); overflow: hidden; margin-bottom: 2.5rem; }
.portfolio-single__image img { width: 100%; height: 420px; object-fit: cover; }
.portfolio-single__meta-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(160px,1fr)); gap: 1rem;
    margin-bottom: 2.5rem;
}
.portfolio-single__meta-item {
    background: var(--bg2); border: 1px solid var(--border);
    border-radius: var(--r-md); padding: 1rem;
}
.portfolio-single__meta-label { font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: .35rem; }
.portfolio-single__meta-value { font-family: var(--font-display); font-weight: 600; color: #fff; font-size: .95rem; }
.portfolio-single__content { color: var(--muted2); line-height: 1.8; }
.portfolio-single__content h2,
.portfolio-single__content h3 { color: #fff; margin: 2rem 0 .75rem; }
.portfolio-single__content p { margin-bottom: 1.2rem; }
.portfolio-single__back-link { display: inline-flex; align-items: center; gap: .5rem; color: var(--accent); font-size: .82rem; margin-bottom: 2rem; }
.portfolio-single__back-link:hover { text-decoration: underline; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1024px) {
    .portfolio-grid.grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .portfolio-grid.grid-3,
    .portfolio-grid.grid-2 { grid-template-columns: 1fr; }
    .portfolio-filter { gap: .4rem; }
    .portfolio-filter__btn { font-size: .72rem; padding: .4rem .8rem; }
    .portfolio-card__image { height: 180px; }
    .portfolio-pagination__pages .portfolio-pagination__page { display: none; }
    .portfolio-pagination__pages .portfolio-pagination__page.is-active,
    .portfolio-pagination__pages .portfolio-pagination__page:nth-child(-n+3) { display: flex; }
}