:root {
    --collection-dark: #1c1915;
    --collection-gold: #bd8737;
    --collection-cream: #f6f0e7;
    --collection-paper: #fffdf9;
    --collection-muted: #7e746b;
    --collection-line: rgba(55,41,28,.12);
}

* {
    box-sizing: border-box;
}

body {
    font-size: 16px;
    margin: 0;
    background: var(--collection-cream);
    color: var(--collection-dark);
    font-family: "Poppins", sans-serif;
}

.collections-page {
    min-height: 100vh;
    padding-bottom: 90px;
}

.collections-container {
    width: min( 1420px, calc(100% - 64px) );
    margin: 0 auto;
}

.collections-hero {
    position: relative;
    overflow: hidden;
    padding: 25px 0 20px;
    background: radial-gradient( circle at 90% 20%, rgba(189,135,55,.15), transparent 34% ), var(--collection-cream);
}

.collections-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--collection-gold);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.collections-eyebrow::after {
    content: "";
    width: 50px;
    height: 1px;
    background: var(--collection-gold);
}

.collections-hero h1 {
    max-width: 850px;
    margin: 17px 0 18px;
    font-family: "poppins",sans-serif;
    font-size:25px;
    font-weight: 500;
    line-height: .98;
}

.collections-hero p {
    max-width: 650px;
    margin: 0;
    color: var(--collection-muted);
    font-size: 18px;
    line-height: 1.8;
}

/*
======================================================
LIST
======================================================
*/
.collections-section {
    padding-top: 20px;
}

/*
======================================================
TABS
======================================================
*/
.collections-tabs-wrap {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
}

.collections-tabs {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px;
    border-radius: 999px;
    background: var(--collection-paper);
    border: 1px solid var(--collection-line);
    box-shadow: 0 10px 30px rgba(47,34,20,.06);
}

.collections-tab {
    appearance: none;
    border: none;
    cursor: pointer;
    padding: 12px 26px;
    border-radius: 999px;
    background: transparent;
    color: var(--collection-muted);
    font-family: "poppins", sans-serif;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: .2px;
    transition: background .25s ease, color .25s ease, box-shadow .25s ease;
}

.collections-tab:hover {
    color: var(--collection-dark);
}

.collections-tab.is-active {
    background: linear-gradient(135deg, var(--collection-gold), #a6752c);
    color: #fff;
    box-shadow: 0 10px 24px rgba(189,135,55,.35);
}

.collections-panel {
    display: none;
}

.collections-panel.is-active {
    display: block;
    animation: collections-fade-in .35s ease;
}

@keyframes collections-fade-in {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.collections-heading {
    margin-bottom: 30px;
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
}

.collections-heading-label {
    display: block;
    color: var(--collection-gold);
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.collections-count {
    color: var(--collection-muted);
    font-size: 18px;
}

.collections-grid {
    display: grid;
    grid-template-columns: repeat( 3, minmax(0, 1fr) );
    gap: 26px;
}

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

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

.collection-card {
    position: relative;
    min-height: 380px;
    overflow: hidden;
    border-radius: 20px;
    background: #27221d;
    box-shadow: 0 18px 55px rgba(47,34,20,.12);
    transition: box-shadow .3s ease, transform .3s ease;
}

.collection-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 22px 60px rgba(47,34,20,.18);
}

.collection-card.is-featured {
    outline: 2px solid var(--collection-gold);
    outline-offset: -2px;
}

.collections-grid-medium .collection-card,
.collections-grid-price .collection-card {
    min-height: 320px;
}

.collection-card img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s ease;
}

.collection-card:hover img {
    transform: scale(1.045);
}

.collection-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient( 180deg, rgba(15,13,11,.03) 20%, rgba(15,13,11,.88) 100% );
}

.collection-card-link {
    position: absolute;
    inset: 0;
    z-index: 5;
}

.collection-content {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 3;
    padding: 30px;
    color: #fff;
}

.collection-number {
    display: block;
    margin-bottom: 12px;
    color: #ddb26b;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.collection-content h3 {
    font-family: "poppins",sans-serif;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.05;
}

.collection-content p {
    display: -webkit-box;
    margin: 0 0 20px;
    overflow: hidden;
    color: rgba( 255, 255, 255, .74 );
    font-size: 14px;
    line-height: 1.6;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.collection-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding-top: 15px;
    border-top: 1px solid rgba(255,255,255,.16);
    font-size: 16px;
}

.collection-meta strong {
    font-size: 16px;
}

/*
======================================================
DETAIL
======================================================
*/
.collection-detail-hero {
    padding: 100px 0px 0px;
}

.collection-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 28px;
    color: var(--collection-muted);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
}

.collection-back:hover {
    color: var(--collection-gold);
}

.collection-detail-title {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 40px;
    align-items: end;
}

.collection-detail-title h1 {
    margin: 12px 0 15px;
    font-family: "poppins",sans-serif;
    font-size: clamp( 45px, 5.5vw, 60px );
    line-height: 1;
}

.collection-detail-title p {
    max-width: 720px;
    margin: 0;
    color: var(--collection-muted);
    font-size: 18px;
    line-height: 1.8;
}

.collection-art-count {
    min-width: 145px;
    padding: 20px;
    border: 1px solid var(--collection-line);
    border-radius: 15px;
    background: var(--collection-paper);
    text-align: center;
}

.collection-art-count strong {
    display: block;
    font-family: "poppins",sans-serif;
    font-size: 34px;
}

.collection-art-count span {
    color: var(--collection-muted);
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/*
======================================================
ARTWORK GRID
======================================================
*/
.collection-artworks {
    padding-top: 30px;
}

.collection-artwork-grid {
    display: grid;
    grid-template-columns: repeat( 4, minmax(0, 1fr) );
    gap: 24px;
}

.collection-artwork-card {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--collection-line);
    border-radius: 15px;
    background: var(--collection-paper);
    transition: transform .25s ease, box-shadow .25s ease;
}

.collection-artwork-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 45px rgba(47,34,20,.10);
}

.collection-artwork-link {
    position: absolute;
    inset: 0;
    z-index: 5;
}

.collection-artwork-image {
    position: relative;
    height: 340px;
    overflow: hidden;
    background: #eee6dc;
}

.collection-artwork-image img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    transition: transform .4s ease;
}

.collection-artwork-card:hover .collection-artwork-image img {
    transform: scale(1.035);
}

.collection-status {
    position: absolute;
    top: 13px;
    left: 13px;
    z-index: 7;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(255,255,255,.92);
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.collection-status.sold {
    background: #1d1915;
    color: #fff;
}

.collection-status.reserved {
    background: var(--collection-gold);
    color: #fff;
}

.collection-artwork-info {
    padding: 18px;
}

.collection-artwork-category {
    display: block;
    margin-bottom: 7px;
    color: var(--collection-gold);
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 1.2px;
    text-transform: uppercase;
}

.collection-artwork-info h3 {
    margin: 0 0 5px;
    font-family: "poppins",sans-serif;
    font-size: 21px;
}

.collection-artist {
    position: relative;
    z-index: 7;
    display: inline-block;
    margin-bottom: 14px;
    color: var(--collection-muted);
    font-size: 16px;
    text-decoration: none;
}

.collection-artist:hover {
    color: var(--collection-gold);
}

.collection-artwork-meta {
    min-height: 20px;
    margin-bottom: 15px;
    color: #8d8176;
    font-size: 16px;
}

.collection-price {
    font-size: 17px;
    font-weight: 800;
}

/*
======================================================
EMPTY
======================================================
*/
.collection-empty {
    padding: 80px 20px;
    border: 1px dashed rgba(55,41,28,.18);
    border-radius: 18px;
    text-align: center;
}

.collection-empty i {
    display: block;
    margin-bottom: 15px;
    color: var(--collection-gold);
    font-size: 42px;
}

.collection-empty h3 {
    font-family: "poppins",sans-serif;
}

.collection-empty p {
    font-size: 18px;
    color: var(--collection-muted);
}

/*
======================================================
RESPONSIVE
======================================================
*/
@media (max-width:1100px) {
    .collections-grid,
    .collections-grid-medium,
    .collections-grid-price {
        grid-template-columns: repeat(2,1fr);
    }

    .collection-artwork-grid {
        grid-template-columns: repeat(3,1fr);
    }
}

@media (max-width:800px) {
    .collection-detail-title {
        grid-template-columns: 1fr;
    }

    .collection-artwork-grid {
        grid-template-columns: repeat(2,1fr);
    }

    .collections-tabs {
        display: flex;
        width: 100%;
    }

    .collections-tab {
        flex: 1;
        padding: 12px 10px;
        font-size: 14px;
        text-align: center;
    }
}

@media (max-width:600px) {
    .collections-container {
        width: calc(100% - 30px);
    }

    .collections-grid, .collections-grid-medium, .collections-grid-price, .collection-artwork-grid {
        grid-template-columns: 1fr;
    }

    .collection-card {
        min-height: 430px;
    }

    .collection-artwork-image {
        height: 410px;
    }
}

/* ==========================================================
COLLECTION NOT FOUND
Moved from the original inline style attribute unchanged.
========================================================== */
.collection-not-found {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    text-align: center;
}