/* ===== Portfolio — editorial mosaic gallery (2025 UI patterns) ===== */

body.page-home .section--portfolio {
    --pf-spring: cubic-bezier(0.22, 1, 0.36, 1);
    --pf-ink: #1c1713;
    --pf-muted: rgba(46, 39, 32, 0.58);
    --pf-gap: 8px;
    --pf-row: clamp(92px, 10.5vw, 128px);
    --pf-radius: 16px;
    position: relative;
    z-index: 1;
    overflow: hidden;
    margin-top: var(--section-gap);
    padding-top: calc(clamp(2.75rem, 6vw, 4rem) + var(--section-curve) * 0.12);
    padding-bottom: calc(clamp(2.75rem, 6vw, 4.25rem) + var(--section-curve) * 0.12);
    background:
        radial-gradient(ellipse 80% 55% at 12% 0%, rgba(239, 108, 0, 0.07), transparent 58%),
        linear-gradient(180deg, #faf8f5 0%, #f2ebe2 52%, #faf8f5 100%);
    border-radius: var(--section-curve) var(--section-curve) 0 0;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.65);
}

.portfolio-shell {
    position: relative;
    z-index: 1;
}

.portfolio-head {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
    gap: clamp(1.25rem, 3vw, 2rem);
    align-items: end;
    margin-bottom: clamp(1.35rem, 3vw, 2rem);
}

.portfolio-head__copy {
    max-width: 40rem;
}

.portfolio-head__subtitle {
    color: var(--pf-muted);
    font-size: clamp(0.92rem, 1.5vw, 1rem);
    line-height: 1.85;
}

.portfolio-head__stats {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.65rem;
}

/* ─── Board shell ─── */
.portfolio-board {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: clamp(0.85rem, 2vw, 1.15rem);
    border-radius: clamp(1.1rem, 2.5vw, 1.35rem);
    background: rgba(255, 255, 255, 0.42);
    border: 1px solid rgba(46, 39, 32, 0.07);
    box-shadow: 0 18px 50px rgba(46, 39, 32, 0.06);
}

.portfolio-board__bar {
    transition: background 0.2s ease;
}

.portfolio-board__bar.is-stuck {
    position: sticky;
    top: calc(var(--header-offset, var(--header-h)) + 0.25rem);
    z-index: 12;
    margin: -0.35rem -0.35rem 0;
    padding: 0.35rem;
}

.portfolio-board__bar.is-stuck .portfolio-board__glass {
    box-shadow: 0 10px 32px rgba(46, 39, 32, 0.1);
}

.portfolio-board__glass {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    padding: 0.65rem 0.75rem;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.85);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    transition: box-shadow 0.25s ease;
}

.portfolio-board__count {
    margin: 0;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--pf-muted);
}

/* ─── Pill filter tabs ─── */
.portfolio-tabs {
    position: relative;
    display: flex;
    flex-wrap: nowrap;
    gap: 0.2rem;
    overflow-x: auto;
    padding: 0.2rem;
    border-radius: 999px;
    background: rgba(46, 39, 32, 0.04);
    scrollbar-width: none;
}

.portfolio-tabs::-webkit-scrollbar {
    display: none;
}

.portfolio-tabs__indicator {
    position: absolute;
    top: 0.2rem;
    bottom: 0.2rem;
    left: 0;
    width: 0;
    border-radius: 999px;
    background: #fff;
    box-shadow: 0 2px 10px rgba(46, 39, 32, 0.1);
    transition: left 0.32s var(--pf-spring), width 0.32s var(--pf-spring);
    pointer-events: none;
}

.portfolio-tab {
    position: relative;
    z-index: 1;
    flex: 0 0 auto;
    padding: 0.48rem 0.9rem;
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: var(--pf-muted);
    font: inherit;
    font-size: 0.76rem;
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
    transition: color 0.2s ease;
}

.portfolio-tab:hover {
    color: var(--pf-ink);
}

.portfolio-tab.is-active {
    color: var(--pf-ink);
}

.portfolio-empty {
    margin: 0;
    padding: 1.25rem;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.7);
    color: var(--pf-muted);
    font-size: 0.88rem;
    text-align: center;
}

.portfolio-empty.is-hidden {
    display: none;
}

/* ─── Editorial mosaic — spans fill cells, dense packing ─── */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    grid-auto-rows: var(--pf-row);
    grid-auto-flow: dense;
    gap: var(--pf-gap);
}

.portfolio-pin {
    min-width: 0;
    min-height: 0;
    content-visibility: auto;
    contain-intrinsic-size: 240px 180px;
    transition: opacity 0.3s ease, transform 0.3s var(--pf-spring);
}

.portfolio-pin.is-hidden,
.portfolio-pin.is-paged-out {
    display: none;
}

.portfolio-pin.is-collapsed {
    display: none;
}

@media (prefers-reduced-motion: no-preference) {
    .portfolio-pin:not(.is-hidden):not(.is-collapsed):not(.is-paged-out) {
        animation: portfolio-pin-enter 0.45s var(--pf-spring) both;
        animation-delay: calc(min(var(--pin-i, 0), 18) * 0.02s);
    }
}

@keyframes portfolio-pin-enter {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.portfolio-pin.is-tall {
    grid-row: span 2;
}

.portfolio-pin.is-wide {
    grid-column: span 2;
}

.portfolio-pin.is-wide.is-tall {
    grid-column: span 2;
    grid-row: span 2;
}

.portfolio-pin__open {
    display: block;
    width: 100%;
    height: 100%;
    min-height: 0;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
    text-align: inherit;
}

.portfolio-pin__media {
    position: relative;
    display: block;
    overflow: hidden;
    width: 100%;
    height: 100%;
    min-height: 0;
    aspect-ratio: unset;
    border-radius: var(--pf-radius);
    background: #c8bdb0;
    box-shadow: 0 4px 18px rgba(46, 39, 32, 0.08);
    transition: transform 0.4s var(--pf-spring), box-shadow 0.4s var(--pf-spring);
}

.portfolio-pin__media img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.55s var(--pf-spring);
}

.portfolio-pin__shade {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(12, 10, 8, 0.02) 40%, rgba(12, 10, 8, 0.55) 100%);
    opacity: 0.35;
    transition: opacity 0.3s ease;
}

.portfolio-pin__chip {
    position: absolute;
    top: 0.55rem;
    inset-inline-end: 0.55rem;
    z-index: 2;
    padding: 0.2rem 0.5rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.92);
    color: var(--accent);
    font-size: 0.62rem;
    font-weight: 800;
    box-shadow: 0 4px 12px rgba(46, 39, 32, 0.12);
}

.portfolio-pin__overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.75rem;
    opacity: 0;
    transition: opacity 0.28s ease;
}

.portfolio-pin__overlay-body {
    display: flex;
    flex-direction: column;
    gap: 0.12rem;
    min-width: 0;
    text-align: start;
}

.portfolio-pin__overlay-body strong {
    color: #fff;
    font-size: 0.82rem;
    font-weight: 700;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.portfolio-pin__overlay-body span {
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.68rem;
    line-height: 1.4;
}

.portfolio-pin__zoom {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.28);
    color: #fff;
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
}

.portfolio-pin__zoom svg {
    width: 14px;
    height: 14px;
}

.portfolio-pin__open:hover .portfolio-pin__media,
.portfolio-pin__open:focus-visible .portfolio-pin__media {
    transform: translateY(-3px);
    box-shadow: 0 14px 32px rgba(46, 39, 32, 0.14);
}

.portfolio-pin__open:hover .portfolio-pin__media img,
.portfolio-pin__open:focus-visible .portfolio-pin__media img {
    transform: scale(1.05);
}

.portfolio-pin__open:hover .portfolio-pin__shade,
.portfolio-pin__open:focus-visible .portfolio-pin__shade,
.portfolio-pin__open:hover .portfolio-pin__overlay,
.portfolio-pin__open:focus-visible .portfolio-pin__overlay {
    opacity: 1;
}

.portfolio-pin__open:focus-visible .portfolio-pin__media {
    outline: none;
    box-shadow: 0 0 0 3px rgba(239, 108, 0, 0.32), 0 14px 32px rgba(46, 39, 32, 0.14);
}

.portfolio-foot {
    display: flex;
    justify-content: center;
    padding-top: 0.25rem;
}

.portfolio-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
    padding-top: 0.35rem;
}

.portfolio-pagination.is-hidden {
    display: none;
}

.portfolio-pagination__info {
    margin: 0;
    min-width: 7.5rem;
    text-align: center;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--pf-muted);
}

.portfolio-pagination__btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.65rem 1.1rem;
    border: 1px solid rgba(46, 39, 32, 0.1);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.85);
    color: var(--pf-ink);
    font: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: border-color 0.15s ease, color 0.15s ease, transform 0.2s var(--pf-spring), opacity 0.15s ease;
}

.portfolio-pagination__btn svg {
    width: 16px;
    height: 16px;
}

.portfolio-pagination__btn:hover:not(:disabled) {
    border-color: rgba(239, 108, 0, 0.35);
    color: var(--accent);
    transform: translateY(-1px);
}

.portfolio-pagination__btn:disabled {
    opacity: 0.42;
    cursor: not-allowed;
}

.portfolio-more {
    padding: 0.72rem 1.6rem;
    border: 1px solid rgba(46, 39, 32, 0.1);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.85);
    color: var(--pf-ink);
    font: inherit;
    font-size: 0.84rem;
    font-weight: 600;
    cursor: pointer;
    transition: border-color 0.15s ease, color 0.15s ease, transform 0.2s var(--pf-spring);
}

.portfolio-more:hover {
    border-color: rgba(239, 108, 0, 0.35);
    color: var(--accent);
    transform: translateY(-1px);
}

.portfolio-more.is-hidden {
    display: none;
}

.portfolio-notice {
    margin: 0;
    text-align: center;
    color: var(--pf-muted);
    font-size: 0.76rem;
    line-height: 1.7;
}

/* ─── Lightbox ─── */
.portfolio-lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    width: 100%;
    max-width: none;
    height: 100%;
    max-height: none;
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
    overflow: hidden;
}

.portfolio-lightbox::backdrop {
    background: rgba(10, 8, 6, 0.9);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}

.portfolio-lightbox__backdrop {
    position: absolute;
    inset: 0;
}

.portfolio-lightbox__frame {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: min(1120px, calc(100% - 2rem));
    max-height: calc(100dvh - 2rem);
    margin: 1rem auto;
    padding: 0;
}

.portfolio-lightbox__img {
    width: 100%;
    max-height: calc(100dvh - 8rem);
    object-fit: contain;
    border-radius: 12px;
}

.portfolio-lightbox__caption {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-top: 1rem;
    text-align: center;
}

.portfolio-lightbox__caption strong {
    font-size: 1rem;
    color: #fff;
}

.portfolio-lightbox__caption span {
    color: rgba(255, 255, 255, 0.58);
    font-size: 0.84rem;
}

.portfolio-lightbox__close,
.portfolio-lightbox__nav {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: rgba(18, 18, 20, 0.82);
    color: #fff;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease;
}

.portfolio-lightbox__close:hover,
.portfolio-lightbox__nav:hover {
    background: rgba(30, 30, 32, 0.95);
    border-color: rgba(255, 255, 255, 0.28);
}

.portfolio-lightbox__close {
    top: -0.25rem;
    inset-inline-end: 0;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    transform: translateY(-110%);
}

.portfolio-lightbox__nav {
    top: 50%;
    width: 42px;
    height: 42px;
    border-radius: 999px;
    transform: translateY(-50%);
}

.portfolio-lightbox__nav--prev {
    inset-inline-start: -3.25rem;
}

.portfolio-lightbox__nav--next {
    inset-inline-end: -3.25rem;
}

.portfolio-lightbox__close svg,
.portfolio-lightbox__nav svg {
    width: 18px;
    height: 18px;
}

@media (max-width: 1280px) {
    body.page-home .section--portfolio {
        --pf-row: clamp(86px, 13vw, 118px);
    }

    .portfolio-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    body.page-home .section--portfolio {
        --pf-row: clamp(80px, 18vw, 108px);
    }

    .portfolio-head {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .portfolio-head__stats {
        max-width: 22rem;
    }

    .portfolio-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .portfolio-lightbox__nav--prev {
        inset-inline-start: 0.25rem;
    }

    .portfolio-lightbox__nav--next {
        inset-inline-end: 0.25rem;
    }
}

@media (max-width: 640px) {
    body.page-home .section--portfolio {
        --pf-gap: 8px;
        --pf-radius: 12px;
        --pf-row: clamp(76px, 24vw, 100px);
    }

    .portfolio-head__stats {
        max-width: none;
    }

    .portfolio-pin.is-wide {
        grid-column: span 2;
    }

    .portfolio-tab {
        font-size: 0.72rem;
        padding: 0.42rem 0.72rem;
    }

    .portfolio-pin__overlay {
        opacity: 1;
    }

    .portfolio-pin__shade {
        opacity: 0.55;
    }
}