:root {
    color-scheme: light;
    --bg: #f5f6f8;
    --panel: #ffffff;
    --text: #1f2933;
    --muted: #596575;
    --line: #d9dee7;
    --accent: #2563eb;
    --ok-bg: #dcfce7;
    --ok-text: #166534;
    --warn-bg: #fef3c7;
    --warn-text: #92400e;
    --bad-bg: #fee2e2;
    --bad-text: #991b1b;
    --full-bg: #ffe4e6;
    --full-text: #9f1239;
    --full-border: #fda4af;
    --available-bg: #dcfce7;
    --available-text: #166534;
    --available-border: #86efac;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.5;
}

main {
    width: min(1120px, calc(100% - 32px));
    margin: 28px auto;
}

.topbar,
header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

h1 {
    margin: 0 0 4px;
    font-size: 30px;
    letter-spacing: 0;
}

h2 {
    margin: 0 0 12px;
    font-size: 18px;
    letter-spacing: 0;
}

h3 {
    margin: 0;
    font-size: 16px;
    letter-spacing: 0;
}

p {
    margin: 0;
    color: var(--muted);
}

a {
    color: var(--accent);
}

section {
    margin-top: 18px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
}

dl {
    display: grid;
    grid-template-columns: minmax(150px, 220px) 1fr;
    gap: 8px 16px;
    margin: 0;
}

dt {
    color: var(--muted);
}

dd {
    margin: 0;
    font-weight: 600;
}

ul {
    margin: 0;
    padding-left: 18px;
}

label {
    display: block;
    margin: 0 0 6px;
    color: var(--muted);
    font-weight: 700;
}

input,
select {
    width: 100%;
    min-height: 42px;
    padding: 9px 11px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fff;
    font: inherit;
}

form {
    display: grid;
    gap: 14px;
}

button,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 8px 13px;
    border: 0;
    border-radius: 6px;
    background: var(--accent);
    color: #fff;
    font: inherit;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}

button:disabled,
.button.disabled {
    cursor: not-allowed;
    opacity: 0.55;
}

.button.secondary,
button.secondary {
    border: 1px solid var(--line);
    background: #fff;
    color: var(--text);
}

.status,
.flash {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 3px 9px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 700;
}

.ok {
    background: var(--ok-bg);
    color: var(--ok-text);
}

.warn {
    background: var(--warn-bg);
    color: var(--warn-text);
}

.bad {
    background: var(--bad-bg);
    color: var(--bad-text);
}

.flash {
    display: flex;
    justify-content: flex-start;
    margin-bottom: 10px;
    border-radius: 6px;
}

code {
    font-family: Consolas, Monaco, monospace;
    font-size: 0.95em;
}

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

.userbox {
    display: grid;
    gap: 2px;
    justify-items: end;
    color: var(--muted);
    font-size: 14px;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.category-tile {
    display: grid;
    min-height: 104px;
    padding: 14px;
    border: 1px solid var(--line);
    border-top: 7px solid var(--category-color);
    border-radius: 8px;
    background: #fff;
    color: var(--text);
    text-decoration: none;
}

.category-tile.active {
    outline: 2px solid color-mix(in srgb, var(--category-color), #ffffff 25%);
    box-shadow: 0 0 0 5px color-mix(in srgb, var(--category-color), transparent 82%);
}

.category-title {
    font-size: 19px;
    font-weight: 800;
    text-transform: uppercase;
}

.category-meta {
    align-self: end;
    color: var(--muted);
    font-size: 14px;
}

.toolbar {
    display: grid;
    grid-template-columns: minmax(220px, 1fr) 180px auto;
    align-items: end;
    gap: 12px;
}

.section-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.button.compact,
button.compact {
    min-height: 34px;
    padding: 6px 10px;
    font-size: 13px;
}

.button.danger,
button.danger {
    border-color: var(--full-border);
    color: var(--full-text);
}

.course-family {
    margin-top: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    overflow: clip;
}

.family-heading {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 54px;
    padding: 12px 14px;
    border: 0;
    border-radius: 0;
    border-left: 5px solid var(--accent);
    background: #fff;
    color: var(--text);
    text-transform: uppercase;
    cursor: pointer;
    text-align: left;
}

.family-heading:hover,
.family-heading:focus-visible {
    background: #f8fafc;
}

.family-title {
    flex: 1;
    min-width: 0;
    font-size: 15px;
    font-weight: 800;
}

.family-count {
    color: var(--muted);
    font-size: 13px;
    font-weight: 800;
    white-space: nowrap;
}

.family-chevron {
    width: 11px;
    height: 11px;
    border-right: 2px solid var(--muted);
    border-bottom: 2px solid var(--muted);
    transform: rotate(45deg);
    transition: transform 0.16s ease;
}

.course-family.is-open .family-chevron {
    transform: rotate(225deg);
}

.course-list {
    display: none;
    gap: 9px;
    padding: 10px;
    border-top: 1px solid var(--line);
    background: #f9fafb;
}

.course-family.is-open .course-list {
    display: grid;
}

.course-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(132px, auto);
    gap: 14px;
    align-items: center;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
}

.course-row:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px #dbeafe;
}

.course-main {
    min-width: 0;
}

.course-title {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    align-items: baseline;
    font-weight: 800;
}

.course-detail {
    margin-top: 4px;
    color: var(--muted);
    font-size: 14px;
}

.course-note {
    margin-top: 5px;
    color: #6b4b00;
    font-size: 14px;
}

.demo-badge {
    display: inline-flex;
    align-items: center;
    min-height: 22px;
    padding: 2px 7px;
    border-radius: 999px;
    background: #eef2ff;
    color: #3730a3;
    font-size: 12px;
    font-weight: 800;
}

.availability-toggle {
    min-width: 132px;
    min-height: 44px;
    border: 1px solid transparent;
    letter-spacing: 0;
    transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.availability-toggle:hover,
.availability-toggle:focus-visible {
    box-shadow: 0 2px 8px rgb(15 23 42 / 0.12);
    transform: translateY(-1px);
}

.availability-toggle.is-available {
    background: var(--available-bg);
    border-color: var(--available-border);
    color: var(--available-text);
}

.availability-toggle.is-full {
    background: var(--full-bg);
    border-color: var(--full-border);
    color: var(--full-text);
}

.availability-toggle:disabled {
    transform: none;
    box-shadow: none;
}

.course-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 7px;
}

.course-actions form {
    display: inline-flex;
    gap: 0;
}

.inline-feedback {
    min-height: 22px;
    color: var(--muted);
    font-size: 13px;
}

.audit-list {
    display: grid;
    gap: 8px;
    padding: 0;
    list-style: none;
}

.audit-list li {
    padding: 9px 0;
    border-bottom: 1px solid var(--line);
}

.audit-list li:last-child {
    border-bottom: 0;
}

.audit-section {
    padding: 0;
}

.audit-section details {
    padding: 14px 18px;
}

.audit-section summary {
    cursor: pointer;
    font-weight: 800;
}

.audit-section summary:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
}

.empty-state {
    padding: 22px 0;
}

.form-errors {
    border-color: var(--bad-bg);
    background: #fff7f7;
}

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

textarea {
    width: 100%;
    padding: 9px 11px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fff;
    font: inherit;
    resize: vertical;
}

.public-header {
    align-items: center;
}

.public-category-nav {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin: 0 0 18px;
}

.public-category-link {
    display: grid;
    gap: 5px;
    min-height: 86px;
    padding: 13px;
    border: 1px solid var(--line);
    border-top: 6px solid var(--category-color);
    border-radius: 8px;
    background: #fff;
    color: var(--text);
    text-decoration: none;
}

.public-category-link:hover,
.public-category-link:focus-visible {
    border-color: color-mix(in srgb, var(--category-color), #ffffff 15%);
    box-shadow: 0 3px 12px rgb(15 23 42 / 0.08);
}

.public-category-link.active {
    outline: 2px solid color-mix(in srgb, var(--category-color), #ffffff 25%);
    box-shadow: 0 0 0 5px color-mix(in srgb, var(--category-color), transparent 84%);
}

.public-category-link span {
    font-size: 18px;
    font-weight: 800;
    text-transform: uppercase;
}

.public-category-link small {
    align-self: end;
    color: var(--muted);
    font-size: 13px;
}

.public-listing {
    border-top: 6px solid var(--category-color);
}

.public-listing-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(240px, 380px);
    gap: 16px;
    align-items: end;
    margin-bottom: 16px;
}

.public-family {
    margin-top: 18px;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
}

.public-family h3 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
    padding-bottom: 7px;
    border-bottom: 2px solid color-mix(in srgb, var(--category-color), #ffffff 50%);
    color: var(--text);
    text-transform: uppercase;
}

.public-family h3 span {
    color: var(--muted);
    font-size: 13px;
    white-space: nowrap;
}

.public-table-wrap {
    width: 100%;
    overflow: visible;
}

.public-courses {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

.public-courses th,
.public-courses td {
    padding: 9px 10px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

.public-courses th {
    background: color-mix(in srgb, var(--category-color), #ffffff 91%);
    color: #253140;
    font-size: 13px;
    font-weight: 800;
}

.public-courses td {
    font-size: 14px;
}

.public-courses td:first-child {
    min-width: 210px;
}

.public-courses strong,
.public-courses span,
.public-courses em {
    display: block;
}

.public-courses strong {
    font-weight: 800;
}

.public-courses td:first-child span {
    margin-top: 3px;
    color: var(--muted);
}

.public-courses em {
    margin-top: 5px;
    color: #6b4b00;
    font-size: 13px;
    font-style: normal;
}

.public-mobile-details {
    display: none;
}

.public-status {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 28px;
    padding: 4px 9px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
    white-space: nowrap;
}

.public-status.is-available {
    border-color: var(--available-border);
    background: var(--available-bg);
    color: var(--available-text);
}

.public-status.is-full {
    border-color: var(--full-border);
    background: var(--full-bg);
    color: var(--full-text);
}

.hidden {
    display: none !important;
}

@media (max-width: 860px) {
    .dashboard-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .section-heading {
        align-items: flex-start;
        flex-direction: column;
    }

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

    .public-listing-head {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 780px) {
    main {
        width: min(100% - 24px, 1120px);
    }

    section {
        padding: 14px;
    }

    .course-detail,
    .course-note {
        font-size: 14px;
    }
}

@media (max-width: 640px) {
    main {
        width: min(100% - 20px, 1120px);
        margin: 18px auto;
    }

    .topbar,
    header {
        display: block;
    }

    .userbox {
        justify-items: start;
        margin-top: 12px;
    }

    header .actions {
        margin-top: 12px;
    }

    dl {
        grid-template-columns: 1fr;
        gap: 2px 0;
    }

    dd {
        margin-bottom: 8px;
    }

    .dashboard-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }

    .category-tile {
        min-height: 92px;
        padding: 12px;
    }

    .category-title {
        font-size: 16px;
    }

    .category-meta {
        font-size: 13px;
    }

    .course-row {
        grid-template-columns: 1fr;
        gap: 10px;
        padding: 11px;
    }

    .course-actions {
        justify-content: stretch;
    }

    .course-actions .button,
    .course-actions button,
    .course-actions form {
        width: 100%;
    }

    .availability-toggle {
        width: 100%;
        min-height: 48px;
    }

    .family-heading {
        min-height: 52px;
        padding: 11px 12px;
    }

    .family-title {
        font-size: 14px;
    }

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

@media (max-width: 780px) {
    .public-header {
        display: block;
    }

    .public-category-nav {
        gap: 8px;
        margin-bottom: 12px;
    }

    .public-category-link {
        min-height: 64px;
        gap: 2px;
        padding: 9px 10px;
        border-top-width: 4px;
    }

    .public-category-link span {
        font-size: 15px;
        line-height: 1.1;
    }

    .public-category-link small {
        align-self: start;
        font-size: 12px;
        line-height: 1.25;
    }

    .public-listing {
        border-top-width: 4px;
    }

    .public-listing-head {
        gap: 10px;
        margin-bottom: 12px;
    }

    .public-listing-head h2 {
        margin-bottom: 0;
        font-size: 22px;
    }

    .public-search {
        width: 100%;
    }

    .public-family {
        margin-top: 14px;
    }

    .public-family h3 {
        align-items: baseline;
        gap: 8px;
        margin-bottom: 6px;
        padding-bottom: 5px;
        font-size: 14px;
    }

    .public-family h3 span {
        font-size: 12px;
    }

    .public-courses,
    .public-courses thead,
    .public-courses tbody,
    .public-courses tr,
    .public-courses th,
    .public-courses td {
        display: block;
    }

    .public-courses thead {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
    }

    .public-courses tr {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        gap: 8px 10px;
        align-items: start;
        margin-bottom: 8px;
        padding: 10px;
        border: 1px solid var(--line);
        border-radius: 8px;
        background: #fff;
    }

    .public-courses td {
        display: block;
        padding: 0;
        border-bottom: 0;
        font-size: 14px;
    }

    .public-courses td::before {
        content: none;
    }

    .public-courses td:first-child {
        min-width: 0;
    }

    .public-course-main {
        grid-column: 1 / 2;
    }

    .public-course-status-cell {
        grid-column: 2 / 3;
        justify-self: end;
        padding-top: 1px;
    }

    .public-course-detail-cell {
        display: none !important;
    }

    .public-courses strong {
        line-height: 1.2;
    }

    .public-courses td:first-child span {
        margin-top: 2px;
    }

    .public-courses em {
        margin-top: 5px;
        padding-left: 8px;
        border-left: 3px solid color-mix(in srgb, var(--category-color), #ffffff 35%);
        font-size: 12px;
        line-height: 1.35;
    }

    .public-mobile-details {
        display: grid;
        gap: 3px;
        margin-top: 7px;
        color: var(--muted);
        font-size: 13px;
        line-height: 1.3;
    }

    .public-mobile-details span {
        display: block;
        overflow-wrap: anywhere;
    }

    .public-status {
        min-height: 25px;
        padding: 4px 8px;
        font-size: 11px;
        line-height: 1;
    }
}