:root {
    color-scheme: light;
    --ink: #172033;
    --muted: #68738a;
    --line: #e5e9f2;
    --surface: #ffffff;
    --canvas: #f4f6fa;
    --brand: #3859db;
    --brand-soft: #eef1ff;
    --good: #18794e;
    --warn: #a15c00;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--canvas); }
.topbar { height: 4.75rem; padding: 0 2rem; display: flex; align-items: center; justify-content: space-between; background: var(--surface); border-bottom: 1px solid var(--line); }
.main-nav { background: var(--surface); border-bottom: 1px solid var(--line); }
.main-nav-inner { width: min(1180px, calc(100% - 2rem)); min-height: 3.2rem; margin: 0 auto; display: flex; gap: .3rem; align-items: stretch; }
.nav-link { padding: 0 .85rem; display: flex; align-items: center; color: var(--muted); border-bottom: 2px solid transparent; text-decoration: none; font-size: .88rem; font-weight: 650; }
.nav-link:hover, .nav-link:focus-visible, .nav-link.is-active { color: var(--brand); border-bottom-color: var(--brand); outline: none; }
.nav-link.is-disabled { color: #a6adbd; cursor: not-allowed; }
.brand { display: flex; gap: .8rem; align-items: center; color: inherit; text-decoration: none; }
.brand span:last-child { display: grid; line-height: 1.15; }
.brand small { color: var(--muted); font-size: .76rem; letter-spacing: .04em; }
.brand-mark { width: 2.45rem; height: 2.45rem; display: grid; place-items: center; border-radius: .75rem; color: white; background: var(--brand); font-weight: 800; }
.environment { color: var(--muted); font-size: .82rem; padding: .45rem .75rem; border: 1px solid var(--line); border-radius: 999px; }
.shell { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; padding: 3.25rem 0; }
.hero { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2rem; align-items: end; margin-bottom: 2.25rem; }
.eyebrow { margin: 0 0 .65rem; color: var(--brand); font-size: .76rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
h1 { max-width: 760px; margin: 0; font-size: clamp(2rem, 4vw, 3.45rem); line-height: 1.04; letter-spacing: -.045em; }
.lead { max-width: 700px; margin: 1rem 0 0; color: var(--muted); font-size: 1.05rem; line-height: 1.65; }
.status-card { min-width: 230px; padding: 1rem 1.1rem; display: flex; gap: .8rem; align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: 1rem; box-shadow: 0 12px 32px rgba(28, 39, 69, .06); }
.status-card div { display: grid; gap: .15rem; }
.status-card span:last-child { color: var(--muted); font-size: .82rem; }
.status-dot { width: .7rem; height: .7rem; border-radius: 50%; background: var(--warn); box-shadow: 0 0 0 5px #fff3df; }
.status-card--connected .status-dot { background: var(--good); box-shadow: 0 0 0 5px #e6f6ee; }
.panel { padding: 1.5rem; background: var(--surface); border: 1px solid var(--line); border-radius: 1.25rem; box-shadow: 0 18px 55px rgba(28, 39, 69, .06); }
.panel-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.15rem; }
h2 { margin: 0; font-size: 1.45rem; }
.count { color: var(--muted); font-size: .85rem; }
.notice, .empty { padding: 1.2rem; color: var(--muted); background: #fafbfe; border: 1px dashed #d9deea; border-radius: .8rem; }
.notice strong { color: var(--ink); }
.notice p { margin: .35rem 0 0; }
.empty p { margin: .35rem 0 0; }
.school-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(245px, 1fr)); gap: .9rem; }
.school-card { padding: 1.1rem; border: 1px solid var(--line); border-radius: .9rem; }
.school-id { color: var(--muted); font-size: .75rem; }
.school-card h3 { min-height: 2.5rem; margin: .45rem 0 1rem; font-size: 1rem; }
.school-card dl { margin: 0; display: grid; gap: .55rem; }
.school-card dl div { display: flex; justify-content: space-between; gap: .8rem; }
.school-card dt { color: var(--muted); font-size: .8rem; }
.school-card dd { margin: 0; font-size: .82rem; font-weight: 650; }
.badge { padding: .2rem .45rem; color: var(--brand); background: var(--brand-soft); border-radius: .4rem; }
.topbar-actions { display: flex; align-items: center; gap: .75rem; }
.topbar-actions form { margin: 0; }
.operator-login { color: var(--muted); font-size: .84rem; }
.logout-button { appearance: none; padding: .55rem .85rem; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 999px; cursor: pointer; font: inherit; font-size: .82rem; }
.logout-button:hover, .logout-button:focus-visible { border-color: var(--brand); outline: none; }
.login-shell { min-height: calc(100vh - 12rem); display: grid; place-items: center; }
.login-card { width: 100%; max-width: 30rem; padding: clamp(1.5rem, 4vw, 2.5rem); background: var(--surface); border: 1px solid var(--line); border-radius: 1.5rem; box-shadow: 0 18px 55px rgba(28, 39, 69, .08); }
.login-card h1 { margin: .35rem 0 .6rem; font-size: clamp(1.8rem, 4vw, 2.5rem); }
.login-intro { margin: 0 0 1.5rem; color: var(--muted); }
.login-form { display: grid; gap: .7rem; }
.login-form label { margin-top: .35rem; font-size: .86rem; font-weight: 700; }
.login-form input { padding: .8rem .9rem; border: 1px solid var(--line); border-radius: .75rem; font: inherit; }
.login-form input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(56, 89, 219, .18); outline: none; }
.primary-button { appearance: none; margin-top: .8rem; padding: .85rem 1rem; color: white; background: var(--brand); border: 0; border-radius: .8rem; cursor: pointer; font: inherit; font-weight: 750; }
.primary-button:hover, .primary-button:focus-visible { filter: brightness(.92); outline: none; }
.notice--error { margin-bottom: 1rem; border-color: #e9b9b9; }
.page-heading, .product-header { margin-bottom: 1.5rem; display: flex; align-items: end; justify-content: space-between; gap: 1.5rem; }
.heading-actions, .product-actions, .lifecycle-actions, .form-actions { display: flex; align-items: center; gap: .7rem; }
.compact-button { margin-top: 0; min-height: 2.65rem; display: inline-flex; align-items: center; justify-content: center; text-decoration: none; }
.danger-button { appearance: none; min-height: 2.65rem; padding: .6rem .9rem; color: #a12626; background: white; border: 1px solid #e3aaaa; border-radius: .65rem; cursor: pointer; font: inherit; font-weight: 750; }
.notice--success { margin-bottom: 1rem; color: var(--good); border-color: #9bcfb6; background: #f1fbf6; }
.lifecycle-panel { margin-bottom: 1rem; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.lifecycle-panel h2 { font-size: 1.05rem; }
.lifecycle-panel p { margin: .3rem 0 0; }
.lifecycle-actions form { margin: 0; }
.admin-form { display: grid; gap: 1.4rem; }
.admin-form fieldset { margin: 0; padding: 1.1rem; border: 1px solid var(--line); border-radius: .85rem; }
.admin-form legend { padding: 0 .4rem; font-weight: 800; }
.admin-form label { display: grid; gap: .35rem; color: var(--muted); font-size: .82rem; font-weight: 700; }
.admin-form input, .admin-form select, .admin-form textarea { width: 100%; padding: .7rem .8rem; color: var(--ink); background: white; border: 1px solid var(--line); border-radius: .65rem; font: inherit; }
.admin-form input:focus, .admin-form select:focus, .admin-form textarea:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(56,89,219,.14); outline: none; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-span { grid-column: 1 / -1; }
.form-actions { justify-content: flex-end; }
.package-builder { display: grid; gap: .7rem; }
.component-row { display: grid; grid-template-columns: auto minmax(240px, 2fr) minmax(140px, 1fr) 100px; gap: .7rem; align-items: end; }
.page-heading h1, .product-header h1 { font-size: clamp(2rem, 4vw, 3rem); }
.filters { margin-bottom: 1rem; padding: 1rem; display: flex; align-items: end; gap: .8rem; background: var(--surface); border: 1px solid var(--line); border-radius: 1rem; }
.filters label { display: grid; gap: .35rem; color: var(--muted); font-size: .78rem; font-weight: 700; }
.filters .search-field { flex: 1; }
.filters input, .filters select { min-height: 2.65rem; padding: .6rem .75rem; color: var(--ink); background: white; border: 1px solid var(--line); border-radius: .65rem; font: inherit; }
.filters input:focus, .filters select:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(56, 89, 219, .14); outline: none; }
.filter-button { min-height: 2.65rem; margin: 0; padding: .6rem 1rem; }
.secondary-button { min-height: 2.65rem; padding: .6rem .85rem; display: inline-flex; align-items: center; justify-content: center; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: .65rem; text-decoration: none; font-size: .85rem; font-weight: 700; }
.secondary-button:hover, .secondary-button:focus-visible { color: var(--brand); border-color: var(--brand); outline: none; }
.catalog-panel { padding: 0; overflow: hidden; }
.catalog-panel > .notice, .catalog-panel > .empty { margin: 1.5rem; }
.table-scroll { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th { padding: .85rem 1rem; color: var(--muted); background: #fafbfe; border-bottom: 1px solid var(--line); text-align: left; font-size: .73rem; letter-spacing: .05em; text-transform: uppercase; }
.data-table td { padding: .95rem 1rem; border-bottom: 1px solid var(--line); vertical-align: middle; font-size: .88rem; }
.data-table tbody tr:hover { background: #fafbff; }
.product-name { display: block; color: var(--ink); font-weight: 750; text-decoration: none; }
.product-name:hover, .product-name:focus-visible, .row-action:hover, .row-action:focus-visible { color: var(--brand); outline: none; }
.product-code, .version-card small, .component-card small { margin-top: .2rem; display: block; color: var(--muted); font-size: .76rem; }
.meta-inline { margin-left: .55rem; padding-left: .55rem; color: var(--muted); border-left: 1px solid var(--line); }
.row-action { color: var(--brand); text-decoration: none; font-weight: 700; }
.badge--kind-sheet { color: #78540a; background: #fff4d6; }
.badge--kind-package { color: #6d3cc4; background: #f2eaff; }
.badge--status-draft { color: #7a5b12; background: #fff5d8; }
.badge--status-published { color: var(--good); background: #e7f7ef; }
.badge--status-archived, .badge--status-legacy_unreconciled { color: #626b7e; background: #eef0f4; }
.pagination { padding: 1rem; display: flex; justify-content: flex-end; background: #fafbfe; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.back-link { margin-bottom: 1rem; display: inline-block; color: var(--brand); text-decoration: none; font-size: .88rem; font-weight: 700; }
.product-header { padding: .5rem 0 .75rem; align-items: center; }
.detail-grid { margin-bottom: 1rem; display: grid; grid-template-columns: minmax(280px, .8fr) minmax(0, 1.2fr); gap: 1rem; }
.detail-list { margin: 0; display: grid; }
.detail-list div { padding: .72rem 0; display: flex; justify-content: space-between; gap: 1rem; border-bottom: 1px solid var(--line); }
.detail-list div:last-child { border: 0; }
.detail-list dt { color: var(--muted); }
.detail-list dd { margin: 0; font-weight: 700; text-align: right; }
.prose { color: #333d52; line-height: 1.65; }
.muted { color: var(--muted); }
.package-panel, .package-detail { margin-top: 1rem; }
.version-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: .7rem; }
.version-card { padding: .85rem; display: flex; align-items: center; justify-content: space-between; gap: .7rem; color: var(--ink); border: 1px solid var(--line); border-radius: .75rem; text-decoration: none; }
.version-card:hover, .version-card:focus-visible, .version-card.is-selected { border-color: var(--brand); box-shadow: 0 0 0 2px rgba(56, 89, 219, .1); outline: none; }
.component-list { display: grid; gap: .65rem; }
.component-card { padding: .85rem; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: .8rem; border: 1px solid var(--line); border-radius: .75rem; }
.component-position { width: 2rem; height: 2rem; display: grid; place-items: center; color: var(--brand); background: var(--brand-soft); border-radius: .55rem; font-weight: 800; }
.component-meta { display: flex; gap: .45rem; color: var(--muted); font-size: .82rem; }
.component-meta span { padding: .3rem .45rem; background: #f4f6fa; border-radius: .4rem; }
.component-card details { grid-column: 2 / -1; color: var(--muted); font-size: .82rem; }
.policy { margin-bottom: 1rem; }
pre { max-width: 100%; padding: .7rem; overflow: auto; color: #3b4558; background: #f6f7fa; border-radius: .6rem; font-size: .76rem; white-space: pre-wrap; word-break: break-word; }
.package-version-heading-actions, .component-editor-heading, .package-version-actions { display: flex; align-items: center; gap: .75rem; }
.immutable-label { display: block; margin-top: .25rem; color: #6b5b17; font-size: .68rem; font-weight: 800; letter-spacing: .08em; }
.policy-summary { margin: .55rem 0 0; padding-left: 1.1rem; color: var(--muted); }
.policy-summary li + li { margin-top: .25rem; }
.component-editor { border: 1px solid var(--line); border-radius: .8rem; padding: 1rem; background: #fbfcfe; }
.component-editor + .component-editor { margin-top: .8rem; }
.component-editor-heading { justify-content: space-between; margin-bottom: .8rem; }
.component-editor-heading > div { display: flex; gap: .4rem; }
.icon-button, .danger-link { border: 1px solid var(--line); border-radius: .45rem; background: white; padding: .35rem .55rem; cursor: pointer; }
.danger-link { color: #a12622; }
.policy-editor { margin-top: .9rem !important; padding: .8rem !important; }
.policy-custom-fields { margin-top: .8rem; }
.check-row { display: flex !important; grid-template-columns: auto 1fr; align-items: center; gap: .5rem; }
.check-row input, .check-grid input { width: auto !important; }
.check-grid { display: flex; flex-wrap: wrap; gap: .8rem; margin: .45rem 0 .8rem; }
.check-grid label { display: flex; flex-direction: row; align-items: center; }
.field-label { font-weight: 700; font-size: .88rem; }
.school-card-link { color: inherit; text-decoration: none; }
.school-card-link:hover, .school-card-link:focus-visible { border-color: var(--brand); outline: none; box-shadow: 0 0 0 2px rgba(56,89,219,.1); }
.offer-school-grid { padding: 1.25rem; }
.badge--offer-enabled { color: var(--good); background: #e7f7ef; }
.badge--offer-disabled { color: #78540a; background: #fff4d6; }
.badge--offer-unconfigured { color: #626b7e; background: #eef0f4; }
.offer-actions { display: flex; flex-wrap: wrap; gap: .65rem; align-items: center; }
.offer-actions form { margin: 0; }
.offer-table--inline { min-width: 1120px; }
.offer-table--inline td { padding: .75rem .65rem; }
.offer-table--inline input, .offer-table--inline select { min-height: 2.25rem; max-width: 9rem; padding: .45rem .5rem; color: var(--ink); background: white; border: 1px solid var(--line); border-radius: .5rem; font: inherit; }
.offer-table--inline input:focus, .offer-table--inline select:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(56,89,219,.12); outline: none; }
.money-input { display: flex; align-items: center; gap: .3rem; white-space: nowrap; }
.money-input input { width: 6.5rem; }
.inline-delivery-toggle { display: flex; align-items: center; gap: .35rem; margin-bottom: .35rem; }
.inline-delivery-toggle input { min-height: auto; width: auto; }
.offer-inline-row { transition: background .15s ease, box-shadow .15s ease; }
.offer-inline-row.is-dirty { background: #fff9e9; box-shadow: inset 4px 0 #d5981a; }
.offer-inline-row.has-error { background: #fff4f4; box-shadow: inset 4px 0 #bd3d3d; }
.dirty-label { display: none; margin-top: .35rem; color: #8a5b00; font-size: .7rem; font-weight: 750; }
.offer-inline-row.is-dirty .dirty-label { display: block; }
.inline-errors { max-width: 19rem; margin-top: .55rem; padding: .5rem .6rem; color: #922b2b; background: #fff; border: 1px solid #e6aaaa; border-radius: .5rem; font-size: .76rem; }
.inline-errors ul { margin: 0; padding-left: 1rem; }
.inline-save:disabled { cursor: default; opacity: .42; }
.row-action--subtle { color: var(--muted); font-size: .8rem; }
.policy-read { margin-bottom: 1rem; }
.policy-tree { line-height: 1.65; }
.policy-tree ul { margin-top: .35rem; }
.policy-row { margin: .75rem 0; padding: .8rem; display: grid; grid-template-columns: minmax(220px,1.4fr) minmax(200px,1fr) auto auto; gap: .7rem; align-items: end; border: 1px solid var(--line); border-radius: .7rem; }

@media (max-width: 720px) {
    .topbar { padding: 0 1rem; }
    .environment { display: none; }
    .operator-login { display: none; }
    .shell { padding-top: 2rem; }
    .hero { grid-template-columns: 1fr; align-items: stretch; }
    .status-card { min-width: 0; }
    .main-nav-inner { overflow-x: auto; }
    .nav-link { padding: 0 .65rem; white-space: nowrap; }
    .page-heading, .product-header { align-items: flex-start; }
    .filters { display: grid; grid-template-columns: 1fr 1fr; }
    .filters .search-field { grid-column: 1 / -1; }
    .detail-grid { grid-template-columns: 1fr; }
    .component-card { grid-template-columns: auto minmax(0, 1fr); }
    .component-meta { grid-column: 2; }
    .heading-actions, .product-actions, .lifecycle-panel { align-items: stretch; flex-direction: column; }
    .form-grid, .component-row { grid-template-columns: 1fr; }
    .policy-row { grid-template-columns: 1fr; }
    .component-row .component-position { display: none; }
}