/* =========================================================
   PALLADIUM - INTERACTIVE 3D PORTFOLIO COVERFLOW
   Scoped exclusively to the public portfolio archive.
========================================================= */

.portfolio-coverflow-section {
    position: relative;
    overflow: hidden;
    padding: clamp(76px, 8vw, 120px) 0 clamp(70px, 7vw, 105px);
    background:
        radial-gradient(circle at 50% 20%, rgba(176, 139, 69, 0.08), transparent 34%),
        linear-gradient(180deg, #151513 0%, #0f0f0e 100%);
    color: #fff;
}

.portfolio-coverflow-section::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px);
    background-size: 96px 96px;
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.65), transparent 88%);
}

.portfolio-coverflow-section__inner {
    position: relative;
    z-index: 1;
    width: min(1500px, calc(100% - 8vw));
    margin-inline: auto;
}

.portfolio-coverflow-section__heading {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.42fr);
    gap: clamp(45px, 8vw, 130px);
    align-items: end;
    margin-bottom: clamp(30px, 4vw, 58px);
}

.portfolio-coverflow-kicker {
    margin: 0 0 14px;
    color: rgba(255, 255, 255, 0.42);
    font-size: 0.64rem;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.portfolio-coverflow-section__heading h2 {
    max-width: 760px;
    margin: 0;
    font-size: clamp(2.8rem, 5vw, 5.6rem);
    font-weight: 590;
    line-height: 0.94;
    letter-spacing: -0.052em;
    text-wrap: balance;
}

.portfolio-coverflow-section__heading > p {
    max-width: 520px;
    margin: 0;
    padding-top: 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.56);
    font-size: 0.88rem;
    line-height: 1.8;
}

.portfolio-coverflow {
    --coverflow-card-width: clamp(290px, 27vw, 455px);
    --coverflow-card-height: clamp(410px, 39vw, 620px);
    position: relative;
}

.portfolio-coverflow__viewport {
    position: relative;
    min-height: calc(var(--coverflow-card-height) + 82px);
    overflow: hidden;
    perspective: 1650px;
    perspective-origin: 50% 44%;
    outline: none;
    touch-action: pan-y;
}

.portfolio-coverflow__viewport:focus-visible {
    box-shadow: inset 0 0 0 1px rgba(196, 157, 83, 0.58);
}

.portfolio-coverflow__stage {
    position: absolute;
    inset: 0;
    transform-style: preserve-3d;
}

.portfolio-coverflow__item {
    position: absolute;
    top: 18px;
    left: 50%;
    width: var(--coverflow-card-width);
    height: var(--coverflow-card-height);
    margin-left: calc(var(--coverflow-card-width) / -2);
    opacity: 0;
    transform: translate3d(0, 0, -800px) scale(0.68);
    transform-style: preserve-3d;
    pointer-events: none;
    filter: saturate(0.76) brightness(0.68);
    transition:
        transform 620ms cubic-bezier(0.2, 0.75, 0.2, 1),
        opacity 420ms ease,
        filter 420ms ease;
    will-change: transform, opacity;
}

.portfolio-coverflow__item.is-visible {
    opacity: 1;
    pointer-events: auto;
}

.portfolio-coverflow__item.is-active {
    z-index: 10;
    filter: saturate(1) brightness(1);
}

.portfolio-coverflow__card {
    position: relative;
    width: 100%;
    height: 100%;
    display: block;
    border-radius: 18px;
    color: #fff;
    transform-style: preserve-3d;
    outline: none;
}

.portfolio-coverflow__card::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 5;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: inherit;
    pointer-events: none;
    transition: border-color 0.25s ease;
}

.portfolio-coverflow__item.is-active .portfolio-coverflow__card::after,
.portfolio-coverflow__card:focus-visible::after {
    border-color: rgba(219, 182, 112, 0.62);
}

.portfolio-coverflow__media {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    border-radius: inherit;
    background: #292721;
    box-shadow:
        0 35px 70px rgba(0, 0, 0, 0.42),
        0 10px 24px rgba(0, 0, 0, 0.28);
}

.portfolio-coverflow__media::after {
    content: "";
    position: absolute;
    left: 3%;
    right: 3%;
    top: calc(100% + 14px);
    height: 95px;
    border-radius: 50%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.11), transparent 75%);
    filter: blur(16px);
    opacity: 0.24;
    transform: scaleY(0.48);
    transform-origin: top;
    pointer-events: none;
}

.portfolio-coverflow__media > img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    transform: scale(1.01);
    transition: transform 620ms cubic-bezier(0.2, 0.75, 0.2, 1);
}

.portfolio-coverflow__item.is-active .portfolio-coverflow__card:hover img,
.portfolio-coverflow__item.is-active .portfolio-coverflow__card:focus-visible img {
    transform: scale(1.035);
}

.portfolio-coverflow__shade {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(6, 6, 6, 0.06) 15%, rgba(6, 6, 6, 0.15) 46%, rgba(6, 6, 6, 0.9) 100%),
        linear-gradient(90deg, rgba(0, 0, 0, 0.34), transparent 42%);
}

.portfolio-coverflow__number {
    position: absolute;
    top: 20px;
    right: 22px;
    z-index: 2;
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.66rem;
    font-weight: 800;
    letter-spacing: 0.13em;
}

.portfolio-coverflow__content {
    position: absolute;
    left: 26px;
    right: 26px;
    bottom: 72px;
    z-index: 2;
}

.portfolio-coverflow__category {
    display: inline-block;
    margin-bottom: 10px;
    color: rgba(222, 188, 122, 0.92);
    font-size: 0.62rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.portfolio-coverflow__content h3 {
    max-width: 360px;
    margin: 0;
    color: #fff;
    font-size: clamp(2rem, 3vw, 3rem);
    font-weight: 590;
    line-height: 0.98;
    letter-spacing: -0.045em;
    text-wrap: balance;
}

.portfolio-coverflow__meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 18px;
    margin-top: 18px;
    color: rgba(255, 255, 255, 0.58);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.portfolio-coverflow__meta span {
    position: relative;
}

.portfolio-coverflow__meta span::before {
    content: "";
    position: absolute;
    top: 50%;
    left: -10px;
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.35);
    transform: translateY(-50%);
}

.portfolio-coverflow__open {
    position: absolute;
    left: 26px;
    right: 26px;
    bottom: 23px;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.69rem;
    font-weight: 800;
    letter-spacing: 0.045em;
    opacity: 0.45;
    transition: opacity 0.22s ease;
}

.portfolio-coverflow__item.is-active .portfolio-coverflow__open {
    opacity: 1;
}

.portfolio-coverflow__open > span {
    font-size: 1rem;
    transition: transform 0.2s ease;
}

.portfolio-coverflow__item.is-active .portfolio-coverflow__card:hover .portfolio-coverflow__open > span,
.portfolio-coverflow__item.is-active .portfolio-coverflow__card:focus-visible .portfolio-coverflow__open > span {
    transform: translate(3px, -2px);
}

.portfolio-coverflow__controls {
    display: grid;
    grid-template-columns: 52px minmax(0, 1fr) 52px;
    align-items: center;
    gap: 18px;
    width: min(520px, 100%);
    margin: 4px auto 0;
}

.portfolio-coverflow__arrow {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.17);
    border-radius: 50%;
    background: transparent;
    color: #fff;
    font: inherit;
    cursor: pointer;
    transition:
        border-color 0.2s ease,
        background 0.2s ease,
        transform 0.2s ease;
}

.portfolio-coverflow__arrow:hover,
.portfolio-coverflow__arrow:focus-visible {
    border-color: rgba(213, 174, 101, 0.72);
    background: rgba(213, 174, 101, 0.08);
    transform: scale(1.04);
    outline: none;
}

.portfolio-coverflow__arrow:disabled {
    opacity: 0.3;
    cursor: default;
    transform: none;
}

.portfolio-coverflow__status {
    min-width: 0;
    display: grid;
    grid-template-columns: auto auto auto minmax(0, 1fr);
    align-items: baseline;
    gap: 6px;
    color: rgba(255, 255, 255, 0.42);
}

.portfolio-coverflow__status strong {
    color: #fff;
    font-size: 1.15rem;
    font-weight: 650;
}

.portfolio-coverflow__status > span {
    font-size: 0.68rem;
}

.portfolio-coverflow__status small {
    min-width: 0;
    margin-left: 8px;
    overflow: hidden;
    color: rgba(255, 255, 255, 0.66);
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.portfolio-coverflow__hint {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px 18px;
    margin: 16px 0 0;
    color: rgba(255, 255, 255, 0.32);
    font-size: 0.58rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.portfolio-coverflow__hint span + span::before {
    content: "·";
    margin-right: 18px;
}

.portfolio-filter-empty {
    max-width: 760px;
    padding: 50px 0 10px;
}

.portfolio-filter-empty > span {
    color: #958f86;
    font-size: 0.66rem;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.portfolio-filter-empty h2 {
    margin: 14px 0 0;
    font-size: clamp(2.2rem, 4vw, 4rem);
    line-height: 1;
    letter-spacing: -0.045em;
}

.portfolio-filter-empty p {
    max-width: 580px;
    margin: 20px 0 0;
    color: #77716a;
    line-height: 1.7;
}

@media (max-width: 1100px) {
    .portfolio-coverflow {
        --coverflow-card-width: clamp(285px, 39vw, 410px);
        --coverflow-card-height: clamp(405px, 55vw, 555px);
    }

    .portfolio-coverflow-section__heading {
        grid-template-columns: 1fr;
        gap: 26px;
    }

    .portfolio-coverflow-section__heading > p {
        max-width: 680px;
    }
}

@media (max-width: 760px) {
    .portfolio-coverflow-section {
        padding: 64px 0 62px;
    }

    .portfolio-coverflow-section__inner {
        width: min(100% - 8vw, 1500px);
    }

    .portfolio-coverflow-section__heading {
        margin-bottom: 28px;
    }

    .portfolio-coverflow-section__heading h2 {
        font-size: clamp(2.7rem, 12vw, 4rem);
    }

    .portfolio-coverflow {
        --coverflow-card-width: min(78vw, 360px);
        --coverflow-card-height: min(112vw, 500px);
    }

    .portfolio-coverflow__viewport {
        min-height: calc(var(--coverflow-card-height) + 56px);
        perspective: 1000px;
    }

    .portfolio-coverflow__item {
        top: 8px;
    }

    .portfolio-coverflow__content {
        left: 22px;
        right: 22px;
        bottom: 68px;
    }

    .portfolio-coverflow__content h3 {
        font-size: clamp(2rem, 9vw, 2.8rem);
    }

    .portfolio-coverflow__open {
        left: 22px;
        right: 22px;
        bottom: 20px;
    }

    .portfolio-coverflow__controls {
        grid-template-columns: 48px minmax(0, 1fr) 48px;
        gap: 12px;
    }

    .portfolio-coverflow__arrow {
        width: 48px;
        height: 48px;
    }

    .portfolio-coverflow__status small {
        display: none;
    }

    .portfolio-coverflow__status {
        justify-content: center;
        grid-template-columns: auto auto auto;
        text-align: center;
    }
}

@media (max-width: 460px) {
    .portfolio-coverflow {
        --coverflow-card-width: min(82vw, 330px);
        --coverflow-card-height: min(118vw, 470px);
    }

    .portfolio-coverflow__hint span:first-child {
        display: none;
    }

    .portfolio-coverflow__hint span + span::before {
        display: none;
    }
}

@media (hover: none), (pointer: coarse) {
    .portfolio-coverflow__item.is-active .portfolio-coverflow__card:hover img {
        transform: scale(1.01);
    }
}

@media (prefers-reduced-motion: reduce) {
    .portfolio-coverflow__item,
    .portfolio-coverflow__media > img,
    .portfolio-coverflow__arrow,
    .portfolio-coverflow__open,
    .portfolio-coverflow__open > span {
        transition: none;
    }
}