:root {
    --background: #f4f6f5;
    --surface: #ffffff;
    --surface-soft: #f9faf8;
    --ink: #1f2933;
    --muted: #64716d;
    --line: #d8dfda;
    --accent: #2f7d6d;
    --accent-strong: #235f54;
    --accent-soft: #e8f4f1;
    --gold: #b98324;
    --danger: #8f3428;
    --danger-soft: #fff1ee;
    --warning: #72581e;
    --warning-soft: #fff6dd;
    --success: #206342;
    --success-soft: #eaf7ef;
    --shadow: 0 16px 36px rgba(31, 41, 51, 0.08);
    --radius: 8px;
    --tap: 46px;
}

* {
    box-sizing: border-box;
}

html {
    min-width: 0;
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
}

body {
    min-height: 100vh;
    margin: 0;
    overflow-x: hidden;
    color: var(--ink);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--background);
}

img,
iframe,
table,
textarea,
input,
select,
button {
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

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

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    margin-bottom: 12px;
    font-size: 2rem;
    line-height: 1.08;
    letter-spacing: 0;
}

h2 {
    margin-bottom: 10px;
    font-size: 1.18rem;
    line-height: 1.22;
}

p {
    line-height: 1.55;
}

.site-header,
.site-footer,
.page-shell {
    width: min(1120px, calc(100% - 28px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    align-items: center;
    min-height: 68px;
    padding: 10px 0;
    border-bottom: 1px solid var(--line);
    background: rgba(244, 246, 245, 0.96);
    backdrop-filter: blur(10px);
}

.brand {
    display: inline-flex;
    min-width: 0;
    align-items: center;
    gap: 10px;
    font-weight: 800;
}

.brand span:last-child {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.brand-mark {
    display: grid;
    flex: 0 0 auto;
    width: 40px;
    height: 40px;
    place-items: center;
    border-radius: var(--radius);
    color: #ffffff;
    background: var(--accent);
    font-size: 0.84rem;
    font-weight: 850;
}

.nav-toggle {
    display: inline-flex;
    min-height: var(--tap);
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    color: var(--ink);
    background: var(--surface);
    cursor: pointer;
    font-weight: 800;
}

.nav-toggle-bars,
.nav-toggle-bars::before,
.nav-toggle-bars::after {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    content: "";
}

.nav-toggle-bars {
    position: relative;
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
    position: absolute;
    left: 0;
}

.nav-toggle-bars::before {
    top: -6px;
}

.nav-toggle-bars::after {
    top: 6px;
}

.main-nav {
    grid-column: 1 / -1;
    display: grid;
    gap: 8px;
    padding: 8px 0 4px;
}

.js-ready .main-nav {
    display: none;
}

.site-header.is-nav-open .main-nav {
    display: grid;
}

.main-nav a,
.main-nav button,
.primary-link,
.secondary-link,
.button-secondary,
.button-primary,
.text-link,
.text-button {
    min-height: var(--tap);
    border-radius: var(--radius);
    font-weight: 800;
}

.main-nav a,
.main-nav button {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    width: 100%;
    padding: 11px 12px;
    border: 1px solid var(--line);
    color: var(--ink);
    background: var(--surface);
    cursor: pointer;
}

.main-nav a:hover,
.main-nav button:hover,
.main-nav a.is-active,
.main-nav a[aria-current="page"],
.secondary-link:hover,
.button-secondary:hover,
.text-link:hover,
.text-button:hover {
    color: var(--accent-strong);
    background: var(--accent-soft);
}

.main-nav a.is-active,
.main-nav a[aria-current="page"] {
    box-shadow: inset 0 0 0 1px rgba(47, 125, 109, 0.22);
}

.logout-form {
    margin: 0;
}

.page-shell {
    padding: 22px 0 28px;
}

.site-footer {
    display: flex;
    min-height: 64px;
    align-items: center;
    color: var(--muted);
    font-size: 0.9rem;
}

.intro-band,
.page-heading,
.table-panel,
.form-panel,
.panel,
.metric,
.quiz-card,
.document-card,
.quiz-pass-question,
.quiz-result-question,
.confirmation-panel,
.summary-strip,
.document-viewer,
.auth-card,
.builder-question {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.intro-band,
.page-heading {
    display: grid;
    gap: 18px;
    padding: 22px;
}

.page-heading-row {
    align-items: start;
}

.eyebrow {
    margin: 0 0 10px;
    color: var(--gold);
    font-size: 0.78rem;
    font-weight: 850;
    letter-spacing: 0;
    text-transform: uppercase;
}

.lead {
    max-width: 760px;
    margin-bottom: 0;
    color: var(--muted);
    font-size: 1rem;
}

.primary-link,
.secondary-link,
.button-secondary,
.button-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 11px 14px;
    cursor: pointer;
    text-align: center;
}

.primary-link,
.button-primary {
    border: 0;
    color: #ffffff;
    background: var(--accent);
}

.primary-link:hover,
.button-primary:hover {
    background: var(--accent-strong);
}

.secondary-link,
.button-secondary {
    border: 1px solid var(--line);
    color: var(--ink);
    background: var(--surface);
}

.primary-link:focus-visible,
.secondary-link:focus-visible,
.button-secondary:focus-visible,
.button-primary:focus-visible,
.text-link:focus-visible,
.text-button:focus-visible,
.main-nav a:focus-visible,
.main-nav button:focus-visible {
    outline: 3px solid rgba(47, 125, 109, 0.18);
    outline-offset: 2px;
}

.text-link,
.text-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: auto;
    min-width: 0;
    padding: 8px 0;
    border: 0;
    color: var(--accent-strong);
    background: transparent;
    cursor: pointer;
}

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

.auth-shell {
    display: grid;
    min-height: calc(100vh - 190px);
    place-items: center;
}

.auth-card {
    width: min(460px, 100%);
    padding: 24px;
}

.auth-card h1 {
    font-size: 2.1rem;
}

.auth-form,
.form-panel,
.field,
.quiz-inline-form,
.builder-config,
.builder-choice-editor,
.quiz-pass-form,
.quiz-result-list,
.answer-list {
    display: grid;
    gap: 14px;
}

.auth-form {
    margin-top: 24px;
}

.auth-form label,
.field label {
    font-weight: 800;
}

.auth-form input,
.field input,
.field select,
.field textarea,
.builder-choice-row input {
    width: 100%;
    min-height: var(--tap);
    padding: 11px 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    color: var(--ink);
    background: #ffffff;
}

textarea {
    resize: vertical;
}

.auth-form input:focus,
.field input:focus,
.field select:focus,
.field textarea:focus,
.builder-choice-row input:focus {
    border-color: var(--accent);
    outline: 3px solid rgba(47, 125, 109, 0.16);
}

.button-primary {
    margin-top: 4px;
}

.alert,
.flash {
    border-radius: var(--radius);
    font-weight: 750;
}

.alert {
    margin-top: 18px;
    padding: 13px 14px;
    border: 1px solid #e2aea5;
    color: var(--danger);
    background: var(--danger-soft);
}

.flash {
    margin: 0 0 16px;
    padding: 13px 14px;
}

.flash-success {
    border: 1px solid rgba(47, 125, 109, 0.28);
    color: var(--accent-strong);
    background: var(--accent-soft);
}

.flash-error {
    border: 1px solid #e2aea5;
    color: var(--danger);
    background: var(--danger-soft);
}

.content-grid,
.metric-grid,
.quiz-grid,
.document-grid,
.summary-strip,
.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    margin-top: 18px;
}

.panel,
.metric {
    min-height: 0;
    padding: 20px;
}

.panel p,
.quiz-card p,
.document-card p {
    margin-bottom: 0;
    color: var(--muted);
}

.panel.wide {
    margin-top: 18px;
}

.metric {
    display: grid;
    gap: 18px;
}

.metric-label {
    color: var(--muted);
    font-size: 0.9rem;
    font-weight: 750;
}

.metric strong {
    color: var(--accent);
    font-size: 2.2rem;
    line-height: 1;
}

.table-panel,
.form-panel,
.quiz-builder-panel {
    margin-top: 18px;
}

.form-panel {
    padding: 20px;
}

.admin-filter-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    align-items: end;
}

.form-panel input:not([type="hidden"]):not([type="checkbox"]):not([type="radio"]),
.form-panel select,
.form-panel textarea {
    width: 100%;
    min-height: var(--tap);
    padding: 11px 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    color: var(--ink);
    background: #ffffff;
}

.form-panel input:not([type="hidden"]):not([type="checkbox"]):not([type="radio"]):focus,
.form-panel select:focus,
.form-panel textarea:focus {
    border-color: var(--accent);
    outline: 3px solid rgba(47, 125, 109, 0.16);
}

.field-full {
    grid-column: 1 / -1;
}

.checkbox-field label {
    display: inline-flex;
    min-height: var(--tap);
    align-items: center;
    gap: 10px;
}

.checkbox-field input {
    width: 20px;
    min-height: 20px;
}

.field-note,
.field-error {
    font-size: 0.9rem;
}

.field-note,
.muted-small {
    color: var(--muted);
}

.text-muted,
.cell-sub,
.meta-line {
    color: var(--muted);
}

.cell-main {
    display: block;
    font-weight: 850;
    overflow-wrap: anywhere;
}

.cell-sub,
.meta-line {
    display: block;
    margin-top: 5px;
    font-size: 0.88rem;
    line-height: 1.35;
}

.nowrap {
    white-space: nowrap;
}

.field-error {
    color: var(--danger);
    font-weight: 800;
}

.form-actions,
.row-actions,
.card-actions,
.document-heading-actions,
.document-card-head,
.document-toolbar,
.builder-footer,
.section-heading,
.quiz-question-head,
.pagination,
.manual-grade-options {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.form-actions,
.card-actions {
    align-items: stretch;
}

.row-actions {
    align-items: center;
}

.admin-actions {
    align-items: center;
    gap: 8px 12px;
}

.pagination {
    align-items: center;
    justify-content: flex-end;
    margin-top: 16px;
}

.manual-grade-options {
    margin: 12px 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

.manual-grade-options legend {
    padding: 0 6px;
    color: var(--muted);
    font-weight: 850;
}

.manual-grade-options label {
    display: inline-flex;
    min-height: 36px;
    align-items: center;
    gap: 8px;
}

.row-actions form {
    margin: 0;
}

.section-heading {
    align-items: flex-end;
    justify-content: space-between;
    margin-top: 24px;
}

.section-heading h2 {
    margin-bottom: 0;
    font-size: 1.35rem;
}

.badge,
.status {
    display: inline-flex;
    min-height: 30px;
    align-items: center;
    padding: 5px 9px;
    border-radius: var(--radius);
    font-size: 0.84rem;
    font-weight: 850;
}

.status-stack,
.date-stack,
.meta-stack {
    display: grid;
    gap: 7px;
    align-content: start;
}

.status-stack .badge,
.status-stack .status {
    width: fit-content;
}

.date-stack span {
    display: block;
}

.date-stack strong {
    margin-right: 4px;
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 850;
    text-transform: uppercase;
}

.badge {
    color: var(--accent-strong);
    background: var(--accent-soft);
}

.assignment-counter {
    gap: 4px;
}

.status-active {
    color: var(--success);
    background: var(--success-soft);
}

.status-inactive {
    color: var(--danger);
    background: var(--danger-soft);
}

.status-draft,
.status-warning {
    color: var(--warning);
    background: var(--warning-soft);
}

.status-required {
    color: var(--danger);
    background: var(--danger-soft);
}

.muted-small {
    margin-top: 4px;
    font-size: 0.9rem;
}

.document-status-stack,
.document-meta-list {
    display: grid;
    gap: 6px;
    margin-top: 8px;
}

.document-meta-list {
    color: var(--muted);
    font-size: 0.92rem;
}

.quiz-card,
.document-card {
    display: grid;
    gap: 14px;
    min-height: 0;
    padding: 20px;
}

.quiz-card h2,
.quiz-card p,
.document-card h2,
.document-card p {
    margin-bottom: 0;
}

.quiz-card .text-link,
.document-card .text-link {
    justify-self: start;
}

.table-panel {
    overflow: visible;
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 12px;
}

.data-table--compact .cell-sub,
.data-table--compact .meta-line,
.data-table--compact .muted-small {
    font-size: 0.84rem;
}

.data-table thead {
    display: none;
}

.data-table tbody,
.data-table tr,
.data-table td {
    display: block;
}

.data-table tr {
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
}

.data-table td {
    min-width: 0;
    padding: 10px 0;
    border-bottom: 1px solid var(--line);
}

.data-table td:last-child {
    border-bottom: 0;
}

.data-table td[data-label]::before {
    display: block;
    margin-bottom: 5px;
    color: var(--muted);
    content: attr(data-label);
    font-size: 0.78rem;
    font-weight: 850;
    text-transform: uppercase;
}

.table-title {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    justify-content: space-between;
    padding: 18px 16px 0;
}

.table-title h2 {
    margin-bottom: 0;
}

.empty-state {
    margin: 18px 0 0;
    color: var(--muted);
    font-weight: 750;
}

.summary-strip {
    padding: 18px;
}

.summary-strip div {
    display: grid;
    gap: 7px;
}

.summary-strip strong:not(.status) {
    color: var(--accent);
    font-size: 1.4rem;
}

.confirmation-panel {
    display: grid;
    gap: 16px;
    margin-top: 18px;
    padding: 18px;
}

.confirmation-panel h2,
.confirmation-panel p {
    margin-bottom: 0;
}

.document-heading-actions {
    align-items: center;
}

.document-viewer {
    margin-top: 18px;
    overflow: hidden;
}

.document-toolbar {
    align-items: center;
    justify-content: space-between;
    padding: 14px;
    border-bottom: 1px solid var(--line);
    font-weight: 800;
}

.document-toolbar span {
    min-width: 0;
    overflow-wrap: anywhere;
}

.pdf-frame {
    display: block;
    width: 100%;
    height: 62vh;
    min-height: 340px;
    border: 0;
    background: #ffffff;
}

.quiz-pass-question,
.quiz-result-question {
    min-width: 0;
    padding: 18px;
}

.quiz-pass-question legend {
    display: flex;
    max-width: 100%;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    padding: 0 6px;
    font-weight: 850;
}

.quiz-pass-question h2,
.quiz-result-question h2 {
    margin: 12px 0 16px;
    font-size: 1.12rem;
}

.quiz-choice-list {
    display: grid;
    gap: 10px;
}

.quiz-choice,
.result-answer {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-soft);
}

.quiz-choice {
    min-height: 56px;
    cursor: pointer;
}

.quiz-choice input {
    flex: 0 0 auto;
    width: 22px;
    min-height: 22px;
    margin-top: 2px;
}

.quiz-choice span {
    flex: 1;
}

.result-answer {
    justify-content: space-between;
}

.result-answer-correct {
    border-color: rgba(47, 125, 109, 0.38);
    background: var(--success-soft);
}

.result-answer-selected:not(.result-answer-correct) {
    border-color: #e2aea5;
    background: var(--danger-soft);
}

.correction-note {
    margin-top: 16px;
    padding: 16px;
    border-left: 4px solid var(--accent);
    border-radius: var(--radius);
    background: var(--accent-soft);
}

.correction-note p {
    margin: 8px 0 0;
    color: var(--muted);
}

.quiz-builder-panel {
    display: grid;
    gap: 16px;
}

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

.builder-question {
    display: grid;
    gap: 14px;
    padding: 16px;
}

.builder-question-main,
.builder-choice-row,
.answer-row,
.answer-edit-form,
.answer-add-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.builder-question-number {
    color: var(--accent-strong);
    font-weight: 850;
}

.builder-question-text textarea {
    min-height: 88px;
}

.builder-type-switch,
.builder-answer-picks {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.builder-type-switch button,
.answer-pick {
    min-height: var(--tap);
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    color: var(--ink);
    background: var(--surface);
    cursor: pointer;
    font-weight: 800;
}

.builder-type-switch button.is-selected,
.answer-pick.is-correct {
    border-color: rgba(47, 125, 109, 0.42);
    color: var(--accent-strong);
    background: var(--accent-soft);
}

.builder-add-choice {
    justify-self: start;
}

.answer-zone {
    margin-top: 22px;
    padding-top: 18px;
    border-top: 1px solid var(--line);
}

.answer-row {
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-soft);
}

.answer-actions,
.answer-delete-form {
    display: flex;
    align-items: end;
}

@media (min-width: 640px) {
    h1 {
        font-size: 2.45rem;
    }

    .site-header,
    .site-footer,
    .page-shell {
        width: min(1120px, calc(100% - 40px));
    }

    .intro-band,
    .page-heading {
        padding: 28px;
    }

    .primary-link,
    .secondary-link,
    .button-primary {
        width: auto;
    }

    .form-grid,
    .content-grid,
    .metric-grid,
    .summary-strip {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .form-actions {
        justify-content: flex-end;
    }

    .card-actions {
        align-items: center;
    }
}

@media (min-width: 761px) {
    .site-header {
        position: static;
        grid-template-columns: auto minmax(0, 1fr);
        align-items: start;
        min-height: 78px;
        background: transparent;
        backdrop-filter: none;
    }

    .nav-toggle {
        display: none;
    }

    .main-nav,
    .js-ready .main-nav {
        grid-column: auto;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: flex-end;
        gap: 6px;
        padding: 0;
    }

    .main-nav a,
    .main-nav button {
        width: auto;
        min-height: 40px;
        padding: 9px 11px;
        border: 0;
        color: var(--muted);
        background: transparent;
        white-space: nowrap;
    }

    .main-nav .nav-admin-start {
        margin-left: 4px;
        padding-left: 14px;
        border-left: 1px solid var(--line);
    }

    .page-shell {
        padding: 38px 0 30px;
    }

    .page-heading-row,
    .intro-band {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
    }

    .data-table {
        border-collapse: collapse;
        border-spacing: 0;
        min-width: 820px;
    }

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

    .data-table thead {
        display: table-header-group;
    }

    .data-table tbody {
        display: table-row-group;
    }

    .data-table tr {
        display: table-row;
        padding: 0;
        border: 0;
        border-radius: 0;
        background: transparent;
    }

    .data-table th,
    .data-table td {
        display: table-cell;
        padding: 15px;
        border-bottom: 1px solid var(--line);
        text-align: left;
        vertical-align: middle;
    }

    .data-table--compact {
        min-width: 760px;
    }

    .data-table--compact th,
    .data-table--compact td {
        padding: 13px 12px;
        vertical-align: top;
    }

    .data-table--compact th {
        font-size: 0.76rem;
    }

    .data-table--compact .row-actions {
        gap: 6px 10px;
    }

    .data-table th {
        color: var(--muted);
        font-size: 0.8rem;
        font-weight: 850;
        text-transform: uppercase;
    }

    .data-table tr:last-child td {
        border-bottom: 0;
    }

    .data-table td[data-label]::before {
        display: none;
    }

    .builder-question-main {
        grid-template-columns: 120px minmax(0, 1fr) auto;
        align-items: start;
    }

    .builder-choice-row {
        grid-template-columns: minmax(0, 1fr) 130px auto;
        align-items: center;
    }

    .answer-row {
        grid-template-columns: minmax(0, 1fr) auto;
    }

    .answer-edit-form,
    .answer-add-grid {
        grid-template-columns: minmax(220px, 1fr) 170px 110px auto;
        align-items: end;
    }

    .confirmation-panel {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .pdf-frame {
        height: min(78vh, 860px);
        min-height: 560px;
    }
}

@media (min-width: 980px) {
    h1 {
        font-size: 3.05rem;
    }

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

    .metric-grid,
    .summary-strip {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (max-width: 420px) {
    .site-header,
    .site-footer,
    .page-shell {
        width: min(100% - 20px, 1120px);
    }

    .brand span:last-child {
        max-width: 190px;
    }

    .intro-band,
    .page-heading,
    .form-panel,
    .auth-card,
    .quiz-card,
    .document-card,
    .quiz-pass-question,
    .quiz-result-question {
        padding: 16px;
    }

    .document-toolbar {
        align-items: stretch;
    }
}

@media print {
    body {
        background: #ffffff;
    }

    .site-header,
    .site-footer,
    .no-print,
    .document-viewer,
    .flash {
        display: none !important;
    }

    .page-shell {
        width: 100%;
        padding: 0;
    }

    .page-heading,
    .table-panel,
    .summary-strip {
        box-shadow: none;
    }

    .page-heading {
        padding: 0 0 18px;
        border: 0;
    }

    .table-panel {
        overflow: visible;
    }

    .data-table {
        min-width: 0;
    }
}