* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-site-charcoal: #22252a;
    --color-site-charcoal-strong: #17191d;
    --color-site-footer: #24262b;
    --color-brand-blue: #1f6fb2;
    --color-brand-blue-dark: #15558b;
    --color-ink: #252a31;
    --color-muted: #69727d;
    --color-line: #d9dde3;
    --color-line-strong: #bfc6cf;
    --color-panel: #ffffff;
    --color-soft-panel: #f5f6f8;
    --color-workspace: #eef0f3;
    --radius-panel: 6px;
    --radius-control: 4px;
    --shadow-panel: 0 10px 24px rgba(28, 31, 35, 0.08);
    --focus-ring: 0 0 0 3px rgba(31, 111, 178, 0.18);
}

body {
    min-width: 320px;
    color: var(--color-ink);
    background: var(--color-workspace);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    line-height: 1.5;
}

button,
input,
select,
textarea {
    font: inherit;
}

a {
    color: var(--color-brand-blue);
}

.container {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}

.site-shell {
    display: flex;
    min-height: 100vh;
    flex-direction: column;
}

.site-header {
    background: var(--color-site-charcoal);
}

.site-nav {
    border-bottom: 3px solid var(--color-brand-blue);
    background: linear-gradient(180deg, #2b2e34 0%, var(--color-site-charcoal) 100%);
    color: #fff;
}

.site-nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 76px;
    gap: 24px;
}

.site-brand,
.site-nav-link,
.site-footer a {
    color: inherit;
    text-decoration: none;
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 13px;
    min-width: 0;
}

.site-brand-logo {
    display: block;
    width: 168px;
    height: auto;
    max-height: 42px;
    object-fit: contain;
}

.site-brand-copy {
    display: grid;
    gap: 1px;
}

.site-brand-copy strong {
    color: #fff;
    font-size: 1rem;
    line-height: 1.2;
}

.site-brand-copy small {
    color: #cbd1d8;
    font-size: 0.74rem;
    line-height: 1.2;
    text-transform: uppercase;
}

.site-nav-links {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
    flex-wrap: wrap;
}

.site-nav-link {
    min-height: 38px;
    padding: 10px 12px;
    border-bottom: 2px solid transparent;
    color: #e7eaee;
    font-size: 0.9rem;
}

.site-nav-link:hover {
    border-bottom-color: var(--color-brand-blue);
    color: #fff;
}

.site-nav-link-accent {
    margin-left: 6px;
    border: 1px solid rgba(255, 255, 255, 0.26);
    border-radius: var(--radius-control);
}

.language-switcher {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--color-muted);
    font-size: 0.9rem;
}

.language-switcher a {
    color: inherit;
    text-decoration: none;
}

.language-switcher a.active {
    color: var(--color-brand-blue);
    font-weight: 700;
}

.main-content {
    flex: 1;
    padding: 30px 0 38px;
}

.catalog-hero,
.results-section,
.detail-container,
.admin-panel {
    border: 1px solid var(--color-line);
    border-radius: var(--radius-panel);
    background: var(--color-panel);
    box-shadow: var(--shadow-panel);
}

.catalog-hero {
    display: grid;
    grid-template-columns: minmax(280px, 1fr) minmax(320px, 560px);
    gap: 30px;
    align-items: stretch;
    padding: 28px;
    margin-bottom: 18px;
    border-top: 4px solid var(--color-brand-blue);
}

.catalog-intro {
    display: grid;
    align-content: center;
    gap: 10px;
}

.section-eyebrow,
.detail-eyebrow {
    color: var(--color-brand-blue);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
}

.catalog-hero h1 {
    color: var(--color-site-charcoal);
    font-size: 2rem;
    line-height: 1.18;
}

.catalog-subtitle {
    color: #3f474f;
    font-size: 1rem;
    font-weight: 700;
}

.search-hint {
    max-width: 660px;
    color: var(--color-muted);
    font-size: 0.94rem;
}

.catalog-chips,
.catalog-capability-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 4px;
}

.catalog-chip {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-control);
    background: var(--color-soft-panel);
    color: #3b4149;
    font-size: 0.83rem;
    font-weight: 700;
}

.catalog-capability-strip {
    align-items: center;
}

.catalog-empty-state {
    min-height: 148px;
    place-content: center;
}

.catalog-search-card {
    display: grid;
    align-content: start;
    gap: 10px;
    padding: 18px;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-panel);
    background: #fafbfc;
}

.search-label {
    color: var(--color-site-charcoal);
    font-size: 0.88rem;
    font-weight: 800;
}

.search-box {
    display: flex;
    gap: 10px;
}

.search-options {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    color: var(--color-muted);
    font-size: 0.9rem;
}

#limitSelect,
#searchInput,
.admin-form input,
.upload-form input[type="file"],
.admin-search-form input,
.form-grid input,
.form-grid textarea,
.full-field textarea {
    border: 1px solid var(--color-line-strong);
    border-radius: var(--radius-control);
    background: #fff;
    color: var(--color-ink);
}

#limitSelect {
    height: 34px;
    min-width: 76px;
    padding: 0 8px;
}

#searchInput {
    flex: 1;
    min-width: 0;
    min-height: 102px;
    padding: 11px 13px;
    font-size: 1rem;
    line-height: 1.45;
    resize: vertical;
}

#searchInput:focus,
#limitSelect:focus,
.admin-form input:focus,
.upload-form input[type="file"]:focus,
.admin-search-form input:focus,
.form-grid input:focus,
.form-grid textarea:focus,
.full-field textarea:focus {
    border-color: var(--color-brand-blue);
    box-shadow: var(--focus-ring);
    outline: 0;
}

#searchBtn,
#clearSearchBtn,
.view-detail-btn,
.page-btn,
.primary-btn,
.secondary-btn,
.secondary-link {
    border-radius: var(--radius-control);
    cursor: pointer;
    font-size: 0.95rem;
    text-decoration: none;
}

#searchBtn,
.primary-btn,
.view-detail-btn {
    border: 0;
    background: var(--color-brand-blue);
    color: #fff;
    font-weight: 800;
}

#searchBtn {
    width: 96px;
    min-height: 44px;
}

#searchBtn:hover,
.primary-btn:hover,
.view-detail-btn:hover {
    background: var(--color-brand-blue-dark);
}

#clearSearchBtn,
.secondary-btn,
.secondary-link {
    border: 1px solid var(--color-line-strong);
    background: #fff;
    color: var(--color-ink);
}

#clearSearchBtn {
    height: 34px;
    padding: 0 12px;
}

#clearSearchBtn:hover,
.secondary-btn:hover,
.secondary-link:hover,
.page-btn:hover {
    border-color: var(--color-brand-blue);
    color: var(--color-brand-blue);
}

.loading,
.empty-state,
.error-message {
    padding: 28px;
    text-align: center;
}

.empty-state {
    display: grid;
    gap: 6px;
    color: var(--color-muted);
}

.empty-state strong {
    color: var(--color-ink);
}

.result-count {
    padding: 15px 20px;
    border-bottom: 1px solid var(--color-line);
    color: var(--color-muted);
    font-size: 0.9rem;
}

.product-result-card {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 14px 22px;
    padding: 18px 20px;
    border-bottom: 1px solid var(--color-line);
    background: #fff;
}

.product-result-card:last-child {
    border-bottom: 0;
}

.result-main {
    display: grid;
    gap: 7px;
    min-width: 0;
}

.product-result-card h2 {
    color: var(--color-site-charcoal);
    font-size: 1.08rem;
    line-height: 1.28;
}

.catalog-result-card {
    align-items: start;
}

.catalog-result-heading {
    display: grid;
    gap: 5px;
}

.catalog-result-heading h2 {
    margin: 0;
}

.catalog-result-xn {
    color: var(--color-brand-blue);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.88rem;
    font-weight: 800;
    overflow-wrap: anywhere;
}

.catalog-result-meta {
    min-height: 26px;
}

.catalog-code-row {
    padding-top: 2px;
}

.result-info,
.result-codes {
    color: #58616c;
    font-size: 0.92rem;
}

.result-meta-list {
    display: flex;
    flex-wrap: wrap;
    gap: 7px 14px;
}

.result-meta-item {
    display: inline-flex;
    gap: 5px;
    min-width: 0;
}

.result-meta-item strong {
    color: #363c43;
}

.result-codes {
    display: flex;
    flex-direction: column;
    gap: 9px;
    grid-column: 1 / -1;
}

.code-group {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 8px 10px;
    align-items: start;
}

.code-group-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 28px;
    border-radius: var(--radius-control);
    background: #e8f1fa;
    color: var(--color-brand-blue);
    font-size: 0.8rem;
    font-weight: 800;
}

.code-group-values {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    min-width: 0;
}

.code-tag {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 3px 8px;
    border: 1px solid var(--color-line);
    border-left: 3px solid var(--color-brand-blue);
    border-radius: var(--radius-control);
    background: var(--color-soft-panel);
    color: var(--color-ink);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.84rem;
    overflow-wrap: anywhere;
}

.code-match {
    padding: 0 2px;
    border-radius: 2px;
    background: #d9ebfb;
    color: #0f4f84;
    font-weight: 800;
}

.view-detail-btn {
    align-self: start;
    padding: 8px 14px;
    white-space: nowrap;
}

.batch-group {
    border-top: 1px solid var(--color-line);
}

.batch-catalog-section {
    background: #fff;
}

.batch-catalog-heading > div {
    display: grid;
    gap: 3px;
    min-width: 0;
}

.batch-group:first-of-type {
    border-top: 0;
}

.batch-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 20px;
    background: #f7f8fa;
}

.batch-group-header h2 {
    color: var(--color-site-charcoal);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.98rem;
    overflow-wrap: anywhere;
}

.batch-group-header span {
    flex: 0 0 auto;
    color: var(--color-muted);
    font-size: 0.9rem;
}

.batch-empty {
    padding: 18px 20px;
    text-align: left;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 18px;
}

.page-btn {
    min-width: 42px;
    padding: 8px 12px;
    border: 1px solid var(--color-line-strong);
    background: #fff;
    color: var(--color-ink);
}

.page-btn.active {
    border-color: var(--color-brand-blue);
    background: var(--color-brand-blue);
    color: #fff;
}

.breadcrumb {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    color: var(--color-muted);
    font-size: 0.92rem;
}

.breadcrumb a {
    color: var(--color-brand-blue);
    text-decoration: none;
}

.product-data-sheet {
    background: #fff;
}

.detail-product-media {
    padding: 12px;
}

.detail-info-panel {
    min-width: 0;
}

.detail-identity-band {
    padding: 24px;
    border-top: 4px solid var(--color-brand-blue);
    background: #fff;
    color: var(--color-ink);
}

.detail-titlebar {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    margin-top: 7px;
}

.detail-titlebar h1 {
    color: var(--color-site-charcoal);
    font-size: 1.62rem;
    line-height: 1.25;
    text-align: right;
}

.xn-number {
    color: #4d5660;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.95rem;
}

.company-number-badge {
    display: grid;
    gap: 2px;
    min-width: 190px;
    justify-items: end;
    color: var(--color-ink);
    text-align: right;
}

.company-number-label {
    color: var(--color-muted);
    font-size: 0.78rem;
    font-weight: 800;
}

.company-number-value {
    color: var(--color-site-charcoal);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 1.62rem;
    line-height: 1.25;
    overflow-wrap: anywhere;
}

.detail-content {
    display: grid;
    grid-template-columns: minmax(220px, 300px) 1fr;
    gap: 24px;
    padding: 24px;
    border-top: 1px solid var(--color-line);
}

.detail-sidebar {
    display: grid;
    align-content: start;
    gap: 14px;
}

.detail-sidebar-card,
.detail-section-card {
    border: 1px solid var(--color-line);
    border-radius: var(--radius-panel);
    background: #fff;
}

.detail-sidebar-card {
    padding: 14px;
}

.detail-code-panel {
    display: grid;
    gap: 18px;
}

.product-image {
    width: 100%;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-panel);
    background: var(--color-soft-panel);
}

.product-image-placeholder {
    display: grid;
    place-items: center;
    width: 100%;
    aspect-ratio: 4 / 3;
    border: 1px dashed var(--color-line-strong);
    border-radius: var(--radius-panel);
    background:
        linear-gradient(135deg, rgba(31, 111, 178, 0.08), transparent 34%),
        var(--color-soft-panel);
    color: var(--color-muted);
    font-weight: 700;
}

.code-section h3,
.info-section h2 {
    margin-bottom: 14px;
    padding-bottom: 9px;
    border-bottom: 1px solid var(--color-line);
    color: var(--color-site-charcoal);
    font-size: 1.08rem;
}

.code-section h3,
.info-section h2,
.admin-panel h1,
.admin-panel h2 {
    position: relative;
}

.code-list {
    display: grid;
    gap: 6px;
    list-style: none;
}

.code-list li {
    padding: 8px 10px;
    border: 1px solid var(--color-line);
    border-left: 3px solid var(--color-brand-blue);
    border-radius: var(--radius-control);
    background: var(--color-soft-panel);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    overflow-wrap: anywhere;
}

.detail-main,
.info-section {
    display: grid;
    gap: 16px;
}

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

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.spec-card,
.info-item {
    border: 1px solid var(--color-line);
    border-radius: var(--radius-control);
    background: #fff;
}

.info-item {
    min-height: 66px;
    padding: 10px 12px;
}

.info-item label {
    display: block;
    margin-bottom: 4px;
    color: var(--color-muted);
    font-size: 0.86rem;
}

.info-item span {
    overflow-wrap: anywhere;
}

.vehicles-table {
    width: 100%;
    border-collapse: collapse;
    overflow-wrap: anywhere;
}

.vehicles-table th,
.vehicles-table td {
    padding: 10px;
    border-bottom: 1px solid var(--color-line);
    text-align: left;
}

.vehicles-table th {
    background: var(--color-soft-panel);
    color: var(--color-site-charcoal);
}

.error-message {
    border: 1px solid #efb1aa;
    border-radius: var(--radius-panel);
    background: #fff4f2;
    color: #a33a31;
}

.admin-panel {
    display: grid;
    gap: 18px;
    padding: 24px;
    margin-bottom: 18px;
}

.admin-panel h1,
.admin-panel h2 {
    color: var(--color-site-charcoal);
}

.admin-panel p,
.form-help {
    color: var(--color-muted);
}

.auth-panel {
    max-width: 420px;
    margin: 32px auto;
}

.admin-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}

.admin-actions,
.form-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.admin-form,
.upload-form,
.admin-search-form,
.admin-edit-form,
.form-section {
    display: grid;
    gap: 10px;
}

.admin-form input,
.upload-form input[type="file"],
.admin-search-form input,
.form-grid input,
.form-grid textarea,
.full-field textarea {
    min-height: 42px;
    padding: 9px 12px;
}

.admin-search-form {
    grid-template-columns: 1fr auto auto;
    align-items: end;
}

.admin-limit-control {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-muted);
    font-size: 0.9rem;
}

.admin-limit-control select {
    min-height: 42px;
    min-width: 76px;
    padding: 0 8px;
    border: 1px solid var(--color-line-strong);
    border-radius: var(--radius-control);
    background: #fff;
    color: var(--color-ink);
}

.admin-import-option {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #444b54;
    font-size: 0.92rem;
}

.admin-import-option input {
    width: 16px;
    height: 16px;
}

.admin-list-summary {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    color: var(--color-muted);
    font-size: 0.92rem;
}

.admin-list-summary strong {
    color: var(--color-ink);
}

.secondary-link {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 0 14px;
}

.admin-edit-form {
    gap: 22px;
}

.form-section {
    padding-top: 4px;
}

.form-section h2 {
    font-size: 1.05rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.form-grid label,
.full-field {
    display: grid;
    gap: 6px;
    color: #444b54;
    font-size: 0.92rem;
}

.form-grid textarea,
.full-field textarea {
    resize: vertical;
}

.form-help {
    font-size: 0.9rem;
}

.primary-btn,
.secondary-btn {
    min-height: 40px;
}

.primary-btn {
    padding: 0 16px;
}

.secondary-btn {
    padding: 0 14px;
}

.import-result {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 16px;
    padding: 14px 16px;
    border: 1px solid #b8dccd;
    border-radius: var(--radius-panel);
    background: #f1faf6;
    color: #205a43;
}

.table-wrap {
    overflow-x: auto;
}

.header-table {
    width: 100%;
    min-width: 760px;
    border-collapse: collapse;
}

.header-table th,
.header-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--color-line);
    text-align: left;
    vertical-align: top;
}

.header-table th {
    background: var(--color-soft-panel);
    color: var(--color-site-charcoal);
}

.header-table code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.9rem;
}

.admin-pagination {
    margin-top: 0;
}

.site-footer {
    padding: 24px 0;
    border-top: 3px solid var(--color-brand-blue);
    background: var(--color-site-footer);
    color: #d9dde2;
    font-size: 0.9rem;
}

.site-footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.site-footer strong {
    color: #fff;
}

.site-footer p {
    margin-top: 4px;
    color: #b9c0c9;
}

.site-footer-links {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.site-footer a:hover {
    color: #fff;
}

@media (max-width: 780px) {
    .catalog-hero,
    .detail-content,
    .info-grid,
    .form-grid,
    .admin-search-form {
        grid-template-columns: 1fr;
    }

    .catalog-hero {
        align-items: stretch;
    }

    .product-result-card {
        grid-template-columns: 1fr;
    }

    .view-detail-btn {
        justify-self: start;
    }

    .catalog-result-card {
        gap: 12px;
    }

    .catalog-code-row {
        grid-column: auto;
    }

    .detail-titlebar {
        align-items: flex-start;
        flex-direction: column;
    }

    .company-number-badge {
        min-width: 0;
        justify-items: start;
        text-align: left;
    }

    .detail-titlebar h1 {
        text-align: left;
    }

    .site-footer-inner {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 560px) {
    .container {
        width: min(100% - 24px, 1180px);
    }

    .main-content {
        padding: 20px 0 28px;
    }

    .catalog-hero,
    .detail-content,
    .admin-panel {
        padding: 18px;
    }

    .catalog-hero h1 {
        font-size: 1.58rem;
    }

    .search-box {
        flex-direction: column;
    }

    #searchBtn {
        width: 100%;
    }

    .catalog-capability-strip {
        gap: 6px;
    }

    .catalog-result-xn,
    .batch-group-header h2,
    .code-tag {
        word-break: break-word;
    }

    .search-options {
        justify-content: flex-start;
        flex-wrap: wrap;
    }

    .site-nav-inner,
    .admin-heading {
        align-items: flex-start;
        flex-direction: column;
    }

    .site-nav-links {
        justify-content: flex-start;
    }

    .site-brand-copy small {
        display: none;
    }
}