:is(
    [data-unit-visual-extension="p03_learning_route"],
    [data-unit-visual-extension="p03_instrument_reader"],
    [data-unit-visual-extension="p03_table_builder"],
    [data-unit-visual-extension="p03_graph_judgement"],
    [data-unit-visual-extension="p03_evaluation_chain"],
    [data-unit-visual-extension="p03_official_tasks"],
    [data-unit-visual-extension="p03_teacher_evidence"]
) {
    --p03-ink: #16333a;
    --p03-muted: #60757a;
    --p03-line: #c9d8d6;
    --p03-grid: #dce7e5;
    --p03-surface: #f4f9f7;
    --p03-surface-strong: #e7f3ef;
    --p03-accent: #0d7f7c;
    --p03-accent-dark: #095f5d;
    --p03-accent-soft: #d5eeea;
    --p03-warm: #b96d27;
    --p03-warm-soft: #f8e8d8;
    --p03-alert: #b44c4c;
    --p03-alert-soft: #f7e3e3;
    --p03-success: #277259;
    margin: clamp(1rem, 2.5vw, 1.7rem) 0;
    padding: clamp(1rem, 2.6vw, 1.45rem);
    border: 1px solid color-mix(in srgb, var(--p03-accent) 18%, transparent);
    border-radius: 1.25rem;
    background: linear-gradient(145deg, #fff 0%, var(--p03-surface) 100%);
    color: var(--p03-ink);
    box-shadow: 0 0.8rem 2rem rgb(22 51 58 / 0.065);
    overflow: clip;
}

:is(
    [data-unit-visual-extension="p03_learning_route"],
    [data-unit-visual-extension="p03_instrument_reader"],
    [data-unit-visual-extension="p03_table_builder"],
    [data-unit-visual-extension="p03_graph_judgement"],
    [data-unit-visual-extension="p03_evaluation_chain"],
    [data-unit-visual-extension="p03_official_tasks"],
    [data-unit-visual-extension="p03_teacher_evidence"]
) .p03-visual-title {
    margin: 0 0 0.85rem;
    color: var(--p03-ink);
    font-size: clamp(1.12rem, 2vw, 1.34rem);
    font-weight: 740;
    letter-spacing: -0.018em;
    line-height: 1.24;
}

.p03-visual-intro {
    margin: -0.25rem 0 1rem;
    color: var(--p03-muted);
    font-size: 0.98rem;
    line-height: 1.55;
}

.p03-tab-controls,
.p03-route-options,
.p03-inline-actions,
.p03-task-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
}

.p03-tab-controls,
.p03-route-options {
    margin-bottom: 0.95rem;
}

.p03-control,
.p03-route-option,
.p03-action-button,
.p03-secondary-button,
.p03-action-link,
.p03-secondary-link {
    min-height: 2.65rem;
    padding: 0.62rem 0.82rem;
    border: 1px solid var(--p03-line);
    border-radius: 0.78rem;
    background: rgb(255 255 255 / 0.9);
    color: var(--p03-ink);
    font: inherit;
    font-size: 0.91rem;
    font-weight: 690;
    line-height: 1.25;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
}

.p03-control:hover,
.p03-route-option:hover,
.p03-secondary-button:hover,
.p03-secondary-link:hover {
    border-color: var(--p03-accent);
    color: var(--p03-accent-dark);
}

.p03-control:focus-visible,
.p03-route-option:focus-visible,
.p03-action-button:focus-visible,
.p03-secondary-button:focus-visible,
.p03-action-link:focus-visible,
.p03-secondary-link:focus-visible,
.p03-heading-select:focus-visible,
.p03-chain-select:focus-visible,
.p03-teacher-select:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--p03-accent) 32%, transparent);
    outline-offset: 2px;
}

.p03-control[aria-pressed="true"],
.p03-route-option[aria-pressed="true"],
.p03-action-button,
.p03-action-link {
    border-color: var(--p03-accent);
    background: var(--p03-accent);
    color: #fff;
}

.p03-action-button:hover,
.p03-action-link:hover {
    border-color: var(--p03-accent-dark);
    background: var(--p03-accent-dark);
    color: #fff;
}

.p03-action-button:disabled {
    cursor: wait;
    opacity: 0.62;
}

.p03-route-option {
    flex: 1 1 12rem;
    text-align: left;
}

.p03-route-result,
.p03-instrument-detail,
.p03-graph-status,
.p03-chain-scenario,
.p03-table-feedback,
.p03-chain-feedback,
.p03-teacher-body {
    padding: 0.9rem 1rem;
    border: 1px solid var(--p03-line);
    border-radius: 0.95rem;
    background: rgb(255 255 255 / 0.84);
}

.p03-route-result p,
.p03-instrument-detail p,
.p03-graph-status p,
.p03-chain-feedback p,
.p03-teacher-body p {
    margin: 0.35rem 0 0;
    color: var(--p03-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

.p03-route-result .p03-action-link {
    display: inline-flex;
    align-items: center;
    margin-top: 0.75rem;
}

.p03-instrument-reader svg,
.p03-graph-judgement svg {
    display: block;
    width: 100%;
    height: auto;
    border: 1px solid var(--p03-line);
    border-radius: 1rem;
    background: #fff;
}

.p03-instrument-detail,
.p03-graph-status {
    margin-top: 0.85rem;
}

.p03-instrument-answer {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.35rem 0.85rem;
    align-items: baseline;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--p03-line);
}

.p03-reading-value {
    color: var(--p03-accent-dark);
    font-size: 1.35rem;
}

.p03-instrument-answer p {
    margin: 0;
}

.p03-meter-body {
    fill: #e8eeed;
    stroke: var(--p03-ink);
    stroke-width: 1.5;
}

.p03-scale-line,
.p03-scale-tick,
.p03-angle-baseline {
    stroke: var(--p03-ink);
    stroke-width: 1.4;
    vector-effect: non-scaling-stroke;
}

.p03-measured-object {
    fill: var(--p03-warm-soft);
    stroke: var(--p03-warm);
    stroke-width: 2;
}

.p03-reference-line {
    stroke: var(--p03-accent);
    stroke-width: 1.5;
    stroke-dasharray: 5 4;
    vector-effect: non-scaling-stroke;
}

.p03-svg-small,
.p03-svg-label,
.p03-svg-value,
.p03-graph-tick,
.p03-graph-axis-title,
.p03-anomaly-label,
.p03-gradient-label {
    fill: var(--p03-ink);
    font-family: inherit;
}

.p03-svg-small,
.p03-graph-tick {
    font-size: 13px;
}

.p03-svg-label,
.p03-gradient-label {
    font-size: 14px;
    font-weight: 620;
}

.p03-svg-value,
.p03-graph-axis-title {
    font-size: 17px;
    font-weight: 730;
}

.p03-angle-arc,
.p03-angle-highlight {
    fill: none;
    stroke: var(--p03-accent);
    stroke-width: 2.2;
    vector-effect: non-scaling-stroke;
}

.p03-angle-highlight {
    stroke: var(--p03-warm);
    stroke-width: 4;
}

.p03-angle-ray {
    stroke: var(--p03-warm);
    stroke-width: 3;
    vector-effect: non-scaling-stroke;
}

.p03-pivot {
    fill: var(--p03-accent-dark);
}

.p03-multimeter-body {
    fill: #dfe8e6;
    stroke: var(--p03-ink);
    stroke-width: 2;
}

.p03-meter-display {
    fill: #e8f0ce;
    stroke: #75805a;
    stroke-width: 1.5;
}

.p03-meter-digits {
    fill: #233127;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 48px;
    font-weight: 650;
}

.p03-meter-unit {
    fill: #233127;
    font-size: 18px;
    font-weight: 700;
}

.p03-meter-selector {
    fill: #f5f7f6;
    stroke: var(--p03-ink);
    stroke-width: 2;
}

.p03-selector-pointer {
    stroke: var(--p03-warm);
    stroke-width: 4;
    stroke-linecap: round;
}

.p03-meter-terminal {
    stroke: #fff;
    stroke-width: 2;
}

.p03-meter-terminal.is-common {
    fill: #29383a;
}

.p03-meter-terminal.is-voltage {
    fill: var(--p03-alert);
}

.p03-meter-lead {
    fill: none;
    stroke-width: 3;
    vector-effect: non-scaling-stroke;
}

.p03-meter-lead.is-common {
    stroke: #29383a;
}

.p03-meter-lead.is-voltage {
    stroke: var(--p03-alert);
}

.p03-table-responsive {
    overflow-x: auto;
    border: 1px solid var(--p03-line);
    border-radius: 0.95rem;
    background: #fff;
}

.p03-data-table {
    width: 100%;
    min-width: 47rem;
    border-collapse: collapse;
    font-variant-numeric: tabular-nums;
}

.p03-data-table th,
.p03-data-table td {
    padding: 0.72rem 0.65rem;
    border-right: 1px solid var(--p03-grid);
    border-bottom: 1px solid var(--p03-grid);
    text-align: center;
}

.p03-data-table th:last-child,
.p03-data-table td:last-child {
    border-right: 0;
}

.p03-data-table tbody tr:last-child td {
    border-bottom: 0;
}

.p03-data-table th {
    min-width: 8.8rem;
    background: var(--p03-surface);
    vertical-align: top;
}

.p03-column-role {
    display: inline-block;
    margin-bottom: 0.45rem;
    padding: 0.18rem 0.42rem;
    border-radius: 999px;
    background: var(--p03-accent-soft);
    color: var(--p03-accent-dark);
    font-size: 0.75rem;
    font-weight: 760;
    letter-spacing: 0.02em;
}

.p03-column-role.is-calculated {
    background: var(--p03-warm-soft);
    color: #7d4518;
}

.p03-heading-select,
.p03-chain-select,
.p03-teacher-select {
    width: 100%;
    min-height: 2.6rem;
    padding: 0.52rem 2rem 0.52rem 0.65rem;
    border: 1px solid #aebfbc;
    border-radius: 0.65rem;
    background: #fff;
    color: var(--p03-ink);
    font: inherit;
    font-size: 0.9rem;
    line-height: 1.3;
}

:is(.p03-heading-select, .p03-chain-select).is-correct {
    border-color: var(--p03-success);
    background: #f0f8f4;
}

:is(.p03-heading-select, .p03-chain-select).is-wrong {
    border-color: var(--p03-alert);
    background: #fff7f7;
}

.p03-inline-actions {
    margin-top: 0.9rem;
}

.p03-table-feedback,
.p03-chain-feedback {
    margin-top: 0.75rem;
}

.p03-table-feedback:empty,
.p03-chain-feedback:empty {
    display: none;
}

.p03-table-feedback.is-success,
.p03-chain-feedback.is-success {
    border-color: color-mix(in srgb, var(--p03-success) 45%, transparent);
    background: #f0f8f4;
}

.p03-table-feedback ul {
    margin: 0.45rem 0 0;
    padding-left: 1.25rem;
    color: var(--p03-muted);
}

.p03-graph-frame {
    fill: #fff;
    stroke: var(--p03-ink);
    stroke-width: 1.6;
}

.p03-graph-grid {
    stroke: var(--p03-grid);
    stroke-width: 1;
    vector-effect: non-scaling-stroke;
}

.p03-point-mark {
    stroke: var(--p03-accent-dark);
    stroke-width: 2.2;
    stroke-linecap: round;
    vector-effect: non-scaling-stroke;
}

.p03-graph-point.is-anomaly .p03-point-mark {
    stroke: var(--p03-alert);
}

.p03-best-fit-line {
    stroke: var(--p03-accent);
    stroke-width: 2.4;
    vector-effect: non-scaling-stroke;
}

.p03-anomaly-ring {
    fill: none;
    stroke: var(--p03-alert);
    stroke-width: 2;
    stroke-dasharray: 4 3;
    vector-effect: non-scaling-stroke;
}

.p03-anomaly-label {
    fill: var(--p03-alert);
    font-size: 14px;
    font-weight: 720;
}

.p03-gradient-triangle {
    stroke: var(--p03-warm);
    stroke-width: 2;
    stroke-dasharray: 5 3;
    vector-effect: non-scaling-stroke;
}

.p03-chain-scenario {
    margin: 0 0 0.85rem;
    border-left: 4px solid var(--p03-accent);
    font-size: 1rem;
    line-height: 1.52;
}

.p03-chain-fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

.p03-chain-field {
    display: grid;
    gap: 0.38rem;
    padding: 0.75rem;
    border: 1px solid var(--p03-line);
    border-radius: 0.85rem;
    background: #fff;
}

.p03-chain-label {
    color: var(--p03-accent-dark);
    font-size: 0.84rem;
    font-weight: 740;
}

.p03-task-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
}

.p03-task-card {
    display: grid;
    grid-template-rows: minmax(12rem, 15rem) 1fr;
    overflow: hidden;
    border: 1px solid var(--p03-line);
    border-radius: 1rem;
    background: #fff;
}

.p03-task-card figure {
    display: grid;
    place-items: center;
    min-width: 0;
    margin: 0;
    padding: 0.65rem;
    border-bottom: 1px solid var(--p03-line);
    background: #f7faf9;
}

.p03-task-card img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.p03-task-copy {
    display: flex;
    flex-direction: column;
    min-width: 0;
    padding: 0.9rem;
}

.p03-task-copy h4 {
    margin: 0.5rem 0 0.35rem;
    color: var(--p03-ink);
    font-size: 1.05rem;
    line-height: 1.3;
}

.p03-task-copy > p {
    margin: 0;
    color: var(--p03-muted);
    font-size: 0.93rem;
    line-height: 1.5;
}

.p03-task-meta,
.p03-task-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.p03-task-meta span,
.p03-task-tags span {
    padding: 0.22rem 0.48rem;
    border-radius: 999px;
    background: var(--p03-accent-soft);
    color: var(--p03-accent-dark);
    font-size: 0.77rem;
    font-weight: 720;
}

.p03-task-role {
    background: var(--p03-warm-soft) !important;
    color: #7d4518 !important;
}

.p03-task-tags {
    margin: 0.7rem 0 0.85rem;
}

.p03-task-tags span {
    background: #eef3f2;
    color: #4f666a;
    font-weight: 620;
}

.p03-task-actions {
    align-items: stretch;
    margin-top: auto;
}

.p03-task-actions a {
    display: inline-flex;
    flex: 1 1 9rem;
    align-items: center;
    justify-content: center;
}

.p03-teacher-body.is-locked {
    border-style: dashed;
    background: #f7faf9;
}

.p03-teacher-controls {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.7rem;
    align-items: end;
}

.p03-teacher-controls label {
    display: grid;
    gap: 0.35rem;
    color: var(--p03-muted);
    font-size: 0.84rem;
    font-weight: 700;
}

.p03-teacher-output {
    margin-top: 1rem;
}

.p03-teacher-output.has-error {
    padding: 0.85rem;
    border: 1px solid color-mix(in srgb, var(--p03-alert) 40%, transparent);
    border-radius: 0.8rem;
    background: var(--p03-alert-soft);
}

.p03-teacher-output-title,
.p03-teacher-summary,
.p03-protected-evaluation-head {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem 0.8rem;
    align-items: baseline;
    justify-content: space-between;
}

.p03-teacher-output-title {
    padding-bottom: 0.65rem;
    border-bottom: 1px solid var(--p03-line);
}

.p03-teacher-output-title span,
.p03-teacher-summary span,
.p03-protected-evaluation-head span {
    color: var(--p03-muted);
    font-size: 0.88rem;
}

.p03-teacher-summary {
    margin: 0.85rem 0;
}

.p03-preparation-groups {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.65rem;
}

.p03-preparation-group {
    min-width: 0;
    border: 1px solid var(--p03-line);
    border-radius: 0.8rem;
    background: #fff;
}

.p03-preparation-group summary {
    display: flex;
    justify-content: space-between;
    gap: 0.6rem;
    padding: 0.72rem;
    color: var(--p03-accent-dark);
    cursor: pointer;
}

.p03-preparation-group summary span {
    color: var(--p03-muted);
    font-size: 0.82rem;
}

.p03-preparation-group ul,
.p03-preparation-notes ul {
    margin: 0;
    padding: 0 0.72rem 0.75rem 1.8rem;
}

.p03-preparation-group li {
    margin: 0.4rem 0;
    line-height: 1.4;
}

.p03-preparation-group li strong,
.p03-preparation-group li span {
    display: block;
}

.p03-preparation-group li span {
    margin-top: 0.1rem;
    color: var(--p03-muted);
    font-size: 0.86rem;
}

.p03-preparation-notes {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.65rem;
    margin-top: 0.75rem;
}

.p03-preparation-notes section {
    padding: 0.75rem;
    border-radius: 0.8rem;
    background: var(--p03-surface);
}

.p03-preparation-notes ul {
    margin-top: 0.45rem;
    padding-bottom: 0;
}

.p03-protected-evaluation {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--p03-line);
}

.p03-protected-evaluation-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.7rem;
    margin: 0.75rem 0 0.9rem;
}

.p03-evidence-pair {
    overflow: hidden;
    border: 1px solid var(--p03-line);
    border-radius: 0.85rem;
    background: #fff;
}

.p03-evidence-pair header {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem 0.55rem;
    align-items: center;
    padding: 0.65rem 0.75rem;
    background: var(--p03-accent-soft);
}

.p03-evidence-pair header strong {
    color: var(--p03-accent-dark);
}

.p03-evidence-pair header span,
.p03-evidence-pair header small {
    color: #4c6769;
    font-size: 0.82rem;
}

.p03-evidence-pair > div {
    display: grid;
    grid-template-columns: 6rem minmax(0, 1fr);
    gap: 0.55rem;
    padding: 0.68rem 0.75rem;
    font-size: 0.94rem;
    line-height: 1.45;
}

.p03-evidence-pair > div + div {
    border-top: 1px solid var(--p03-grid);
}

.p03-evidence-pair > div b {
    color: var(--p03-accent-dark);
}

.p03-evidence-pair.is-unpaired > p {
    margin: 0;
    padding: 0 0.75rem 0.7rem;
    font-size: 0.84rem;
}

.p03-evidence-pair[data-evaluation-theme="reading"] header {
    background: #e4eef8;
}

.p03-evidence-pair[data-evaluation-theme="material"] header {
    background: var(--p03-warm-soft);
}

.p03-evidence-pair[data-evaluation-theme="motion"] header {
    background: #ece8f8;
}

.p03-loading {
    min-height: 3rem;
    display: grid;
    place-items: center;
}

@media (max-width: 760px) {
    .p03-chain-fields,
    .p03-task-grid,
    .p03-preparation-groups,
    .p03-preparation-notes,
    .p03-protected-evaluation-grid {
        grid-template-columns: 1fr;
    }

    .p03-task-card {
        grid-template-rows: minmax(11rem, 14rem) 1fr;
    }

    .p03-teacher-controls {
        grid-template-columns: 1fr;
    }

    .p03-instrument-answer {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 520px) {
    :is(
        [data-unit-visual-extension="p03_learning_route"],
        [data-unit-visual-extension="p03_instrument_reader"],
        [data-unit-visual-extension="p03_table_builder"],
        [data-unit-visual-extension="p03_graph_judgement"],
        [data-unit-visual-extension="p03_evaluation_chain"],
        [data-unit-visual-extension="p03_official_tasks"],
        [data-unit-visual-extension="p03_teacher_evidence"]
    ) {
        margin-inline: -0.15rem;
        padding: 0.9rem;
        border-radius: 1rem;
    }

    .p03-tab-controls > *,
    .p03-inline-actions > * {
        flex: 1 1 calc(50% - 0.55rem);
    }

    .p03-route-option {
        flex-basis: 100%;
    }

    .p03-evidence-pair > div {
        grid-template-columns: 1fr;
        gap: 0.2rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .p03-control,
    .p03-route-option,
    .p03-action-button,
    .p03-secondary-button,
    .p03-action-link,
    .p03-secondary-link {
        scroll-behavior: auto;
    }
}