:root {
    --bg: #0f172a;
    --panel: #111827;
    --panel-soft: #1f2937;
    --text: #f8fafc;
    --muted: #cbd5e1;
    --line: rgba(255,255,255,.08);
    --accent: #14b8a6;
    --accent-2: #0ea5e9;
    --chip: #243041;
    --shadow: 0 16px 30px rgba(0,0,0,.24);
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    background: linear-gradient(180deg, #08111f 0%, var(--bg) 100%);
    color: var(--text);
    font-family: Inter, Arial, Helvetica, sans-serif;
}

body {
    min-height: 100vh;
}

img {
    max-width: 100%;
    display: block;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(12px);
    background: rgba(8, 17, 31, .85);
    border-bottom: 1px solid var(--line);
}

.brand-wrap {
    max-width: 1080px;
    margin: 0 auto;
    padding: 14px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.brand-icon {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    font-size: 1.3rem;
}

.brand-block {
    flex: 1 1 auto;
    min-width: 180px;
}

.brand-title {
    font-size: 1rem;
    font-weight: 700;
}

.brand-subtitle {
    color: var(--muted);
    font-size: .86rem;
}

.topnav {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.topnav a,
.toggle-link {
    color: var(--text);
    text-decoration: none;
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(255,255,255,.04);
    border: 1px solid var(--line);
    font-weight: 600;
}

.toggle-link.active {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #052630;
    border-color: transparent;
}

.page-shell {
    max-width: 1080px;
    margin: 0 auto;
    padding: 16px;
}

.hero-card,
.result-card,
.detail-header-card,
.detail-section,
.gallery-card {
    background: rgba(17, 24, 39, .92);
    border: 1px solid var(--line);
    border-radius: 22px;
    box-shadow: var(--shadow);
}

.hero-card,
.detail-header-card,
.detail-section {
    padding: 18px;
}

.hero-card h1,
.detail-header-card h1 {
    margin: 0 0 8px 0;
    font-size: 1.7rem;
    line-height: 1.15;
}

.hero-card p,
.designation,
.results-count,
.empty-text,
.exhibit-text,
.status-line,
.field-group label,
.gallery-meta {
    color: var(--muted);
}

.filter-form {
    margin-top: 14px;
}

.filter-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.field-group {
    display: grid;
    gap: 6px;
}

.field-group label {
    font-size: .9rem;
    font-weight: 600;
}

.field-span-2 {
    grid-column: auto;
}

.search-input {
    width: 100%;
    padding: 15px 16px;
    border-radius: 16px;
    border: 1px solid var(--line);
    background: #0b1220;
    color: var(--text);
    font-size: 1rem;
}

.action-row {
    margin-top: 14px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.primary-button,
.secondary-button {
    display: inline-block;
    text-align: center;
    text-decoration: none;
    padding: 13px 16px;
    border-radius: 16px;
    font-weight: 700;
    border: none;
    cursor: pointer;
}

.primary-button {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #04202a;
}

.secondary-button {
    background: var(--panel-soft);
    color: var(--text);
    border: 1px solid var(--line);
}

.results-header {
    margin: 14px 2px 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.view-toggle {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.clear-link,
.back-link,
.title-link,
.gallery-title a {
    color: #7dd3fc;
    text-decoration: none;
    font-weight: 600;
}

.card-list {
    display: grid;
    gap: 14px;
}

.result-card {
    padding: 0;
    overflow: hidden;
}

.list-card {
    display: grid;
    grid-template-columns: 1fr;
}

.list-media {
    background: #0b1220;
}

.list-image-link,
.gallery-image-link {
    display: block;
}

.card-body,
.gallery-body {
    padding: 16px;
}

.card-image,
.detail-image,
.gallery-image,
.upload-preview {
    width: 100%;
    object-fit: cover;
    background: #0b1220;
}

.card-image,
.gallery-image {
    aspect-ratio: 4 / 3;
}

.detail-image,
.upload-preview {
    border-radius: 16px;
    margin-bottom: 16px;
    max-height: 420px;
    object-fit: contain;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.gallery-card {
    overflow: hidden;
}

.gallery-title {
    margin: 6px 0 8px;
    font-size: 1.05rem;
    line-height: 1.2;
}

.gallery-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: .92rem;
}

.gallery-placeholder {
    aspect-ratio: 4 / 3;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, #101827, #1d2939);
    color: var(--muted);
    font-weight: 600;
}

.list-placeholder {
    min-height: 220px;
}

.inventory {
    color: #7dd3fc;
    font-size: .85rem;
    word-break: break-word;
}

.result-card h2 {
    margin: 6px 0 6px;
    font-size: 1.25rem;
    line-height: 1.2;
}

.chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 14px 0;
}

.chip,
.similarity-pill {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 6px 12px;
    border: 1px solid var(--line);
    border-radius: 999px;
    font-size: .88rem;
}

.chip {
    background: var(--chip);
}

.fact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin: 0 0 14px;
}

.fact-grid div {
    background: rgba(255,255,255,.03);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 12px;
}

.fact-grid dt {
    font-size: .8rem;
    color: #94a3b8;
    margin-bottom: 4px;
}

.fact-grid dd {
    margin: 0;
    font-weight: 600;
}

.empty-card {
    text-align: center;
    padding: 28px 18px;
}

.empty-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.detail-section {
    margin-top: 14px;
}

.detail-section h2 {
    margin-top: 0;
    font-size: 1.1rem;
}

.json-box {
    background: #09111c;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 14px;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
    font-size: .86rem;
    line-height: 1.45;
}

@media (min-width: 700px) {
    .page-shell {
        padding: 24px;
    }

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

    .field-span-2 {
        grid-column: 1 / -1;
    }

    .list-card {
        grid-template-columns: minmax(220px, 320px) 1fr;
    }

    .list-media {
        height: 100%;
    }

    .card-image,
    .list-placeholder {
        height: 100%;
        min-height: 100%;
    }

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

@media (min-width: 980px) {
    .gallery-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .fact-grid {
        grid-template-columns: 1fr;
    }

    .hero-card h1,
    .detail-header-card h1 {
        font-size: 1.45rem;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }
}

.detail-text {
    white-space: pre-line;
    line-height: 1.6;
    color: var(--text);
}

.subsection-title {
    margin: 18px 0 8px;
    font-size: 1rem;
    color: var(--text);
}

.file-input {
    padding: 12px 16px;
}

.checkbox-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-top: 14px;
    color: var(--muted);
}

.checkbox-row input {
    margin-top: 3px;
}

.alert-card h2 {
    margin-top: 0;
}

.alert-success {
    border-color: rgba(20, 184, 166, .35);
}

.alert-error {
    border-color: rgba(248, 113, 113, .45);
}

.upload-summary-grid {
    margin-top: 12px;
}

.simple-list {
    margin: 12px 0 0;
    padding-left: 20px;
    color: var(--muted);
}

code {
    font-family: Consolas, Monaco, monospace;
    font-size: .95em;
    background: rgba(255,255,255,.05);
    padding: 2px 6px;
    border-radius: 8px;
}