.ct-practical,
.ct-learn {
    --j223-accent: var(--lesson-accent, var(--cq-cyan, #50cbd6));
    --ct-panel: var(--lesson-panel, #0b1a20);
    --ct-deep: var(--lesson-panel-deep, #071419);
    --ct-line: var(--lesson-line, rgba(132, 183, 190, .24));
    min-width: 0;
}

.ct-section-heading {
    padding: 1.25rem;
    border: 1px solid var(--ct-line);
    border-left: 4px solid var(--j223-accent);
    background: var(--ct-panel);
}

.ct-section-heading h3 {
    margin: .3rem 0 .55rem;
    font-size: clamp(1.4rem, 3vw, 2rem);
}

.ct-section-heading p:last-child { max-width: 72ch; margin-bottom: 0; }

.ct-concept-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(260px, .55fr);
    gap: 1rem;
    margin-top: 1rem;
}

.ct-concept-card {
    min-width: 0;
    padding: 1.25rem;
    border: 1px solid var(--ct-line);
    background: var(--ct-panel);
}

.ct-concept-card .lesson-content { padding: 0; background: transparent; border: 0; }
.ct-concept-card--objectives ul { margin: .75rem 0 0; padding-left: 1.25rem; }
.ct-concept-card--objectives li + li { margin-top: .65rem; }

.ct-worked-example {
    margin-top: 1rem;
    padding: 1.25rem;
    border: 1px solid var(--ct-line);
    background: var(--ct-deep);
}

.ct-worked-example > header,
.ct-workspace-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.ct-worked-example h3,
.ct-workspace-header h4 { margin: .25rem 0 .75rem; }

.ct-code-compare {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.ct-code-compare > div,
.ct-visible-test,
.ct-worked-controls > div {
    min-width: 0;
    border: 1px solid var(--ct-line);
    background: #051116;
}

.ct-code-compare span,
.ct-visible-test > span,
.ct-worked-controls span {
    display: block;
    padding: .55rem .75rem;
    color: var(--j223-accent);
    border-bottom: 1px solid var(--ct-line);
    font-size: .75rem;
    font-weight: 900;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.ct-code-compare pre,
.ct-visible-test pre {
    max-width: 100%;
    margin: 0;
    padding: .9rem;
    overflow: auto;
    color: var(--cq-text, #edf5f5);
    font-size: .88rem;
    line-height: 1.55;
    tab-size: 4;
    white-space: pre;
}

.ct-worked-controls {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1rem;
    align-items: stretch;
    margin-top: 1rem;
}

.ct-worked-controls code {
    display: block;
    padding: .75rem;
    overflow-wrap: anywhere;
}

.ct-worked-controls .card-action { min-height: 48px; }

.ct-takeaway {
    margin: 1rem 0 0;
    padding: .85rem 1rem;
    border-left: 3px solid var(--j223-accent);
    background: color-mix(in srgb, var(--j223-accent) 8%, transparent);
}

.ct-code-workspace,
.ct-editor-shell {
    min-width: 0;
}

.ct-code-workspace {
    padding: 1.25rem;
    border: 1px solid var(--ct-line);
    background: var(--ct-deep);
}

.ct-editor-shell {
    margin-top: .75rem;
    border: 1px solid var(--ct-line);
    background: #031014;
}

.ct-editor-shell:focus-within {
    border-color: var(--j223-accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--j223-accent) 22%, transparent);
}

.ct-editor-shell label {
    display: block;
    padding: .65rem .8rem;
    color: var(--j223-accent);
    border-bottom: 1px solid var(--ct-line);
    font-size: .76rem;
    font-weight: 900;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.ct-editor-shell textarea,
.ct-written-exam textarea {
    display: block;
    width: 100%;
    min-width: 0;
    padding: 1rem;
    color: var(--cq-text, #edf5f5);
    background: #031014;
    border: 0;
    border-radius: 0;
    font: 500 .9rem/1.55 ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
    resize: vertical;
}

.ct-editor-shell textarea:focus { outline: 0; }
.ct-visible-test { margin-top: 1rem; }
.ct-visible-test > p { margin: 0; padding: .7rem .9rem; border-top: 1px solid var(--ct-line); }

.ct-guided-brief {
    display: block;
    margin: 1rem 0;
    border: 1px solid var(--ct-line);
    border-left: 4px solid var(--j223-accent);
    background: var(--ct-panel);
    overflow: hidden;
}
.ct-guided-brief[hidden] { display: none; }
.ct-guided-brief [hidden] { display: none !important; }
.ct-guided-brief__summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 64px;
    padding: .9rem 1.25rem;
    list-style: none;
    background: color-mix(in srgb, var(--j223-accent) 8%, var(--ct-panel));
    cursor: pointer;
}
.ct-guided-brief__summary::-webkit-details-marker { display: none; }
.ct-guided-brief__summary::marker { content: ""; }
.ct-guided-brief[open] .ct-guided-brief__summary {
    border-bottom: 1px solid var(--ct-line);
}
.ct-guided-brief__summary:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--j223-accent) 65%, white);
    outline-offset: -4px;
}
.ct-guided-brief__summary p,
.ct-guided-brief__summary h5 { margin: 0; }
.ct-guided-brief__summary h5 { margin-top: .2rem; }
.ct-guided-brief__toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .65rem;
    min-height: 44px;
    padding: .55rem .75rem;
    color: var(--j223-accent);
    border: 1px solid color-mix(in srgb, var(--j223-accent) 45%, var(--ct-line));
    font-size: .78rem;
    font-weight: 900;
    text-transform: uppercase;
    white-space: nowrap;
}
.ct-guided-brief [data-ct-guidance-closed-label] { display: none; }
.ct-guided-brief:not([open]) [data-ct-guidance-open-label] { display: none; }
.ct-guided-brief:not([open]) [data-ct-guidance-closed-label] { display: inline; }
.ct-guided-brief__chevron {
    width: .55rem;
    height: .55rem;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: translateY(-.15rem) rotate(45deg);
    transition: transform 180ms ease;
}
.ct-guided-brief[open] .ct-guided-brief__chevron {
    transform: translateY(.15rem) rotate(225deg);
}
.ct-guided-brief__content {
    display: grid;
    gap: .75rem;
}
.ct-guided-brief:not([open]) .ct-guided-brief__content { display: none; }
.ct-guided-brief__header {
    padding: 1.1rem 1.25rem;
    border-bottom: 1px solid var(--ct-line);
}
.ct-current-rule {
    margin-top: .85rem;
    padding: .75rem .85rem;
    border-left: 4px solid var(--j223-accent);
    background: color-mix(in srgb, var(--j223-accent) 8%, var(--ct-deep));
}
.ct-current-rule strong {
    display: block;
    margin-bottom: .25rem;
    color: var(--j223-accent);
}
.ct-current-rule p { margin: 0; }
.ct-guided-brief h5 { margin: .25rem 0 .5rem; font-size: 1.2rem; }
.ct-guided-brief h6 { margin: .15rem 0 .45rem; font-size: 1rem; }
.ct-guided-brief__header p:last-child,
.ct-guided-step p:last-child { margin-bottom: 0; }
.ct-guided-step {
    display: grid;
    grid-template-columns: 2.25rem minmax(0, 1fr);
    gap: .85rem;
    margin: 0 .9rem;
    padding: 1rem;
    border: 1px solid var(--ct-line);
    background: var(--ct-deep);
}
.ct-guided-step__number {
    display: grid;
    place-items: center;
    width: 2.1rem;
    height: 2.1rem;
    color: #031014;
    background: var(--j223-accent);
    border-radius: 50%;
    font-weight: 950;
}
.ct-input-table-wrap {
    max-width: 100%;
    margin-top: .75rem;
    overflow-x: auto;
}
.ct-input-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .92rem;
}
.ct-input-table th,
.ct-input-table td {
    padding: .65rem .7rem;
    text-align: left;
    vertical-align: top;
    border: 1px solid var(--ct-line);
}
.ct-input-table thead th {
    color: var(--j223-accent);
    background: rgba(255, 255, 255, .035);
}
.ct-input-table tbody th { white-space: nowrap; }
.ct-code-walkthrough {
    display: grid;
    gap: .6rem;
    margin: .8rem 0 0;
    padding: 0;
    list-style: none;
}
.ct-code-walkthrough li {
    display: grid;
    grid-template-columns: 4.2rem minmax(220px, .8fr) minmax(260px, 1.2fr);
    align-items: start;
    gap: .75rem;
    padding: .75rem;
    border: 1px solid var(--ct-line);
}
.ct-code-walkthrough li > span {
    color: var(--j223-accent);
    font-size: .76rem;
    font-weight: 900;
    text-transform: uppercase;
}
.ct-code-walkthrough code {
    color: var(--cq-text, #edf5f5);
    overflow-wrap: anywhere;
}
.ct-code-walkthrough p { margin: 0; color: var(--cq-muted, #b8c5c7); }
.ct-guided-step--edit {
    border-color: color-mix(in srgb, var(--j223-accent) 60%, var(--ct-line));
}
.ct-copy-line {
    display: grid;
    gap: .35rem;
    margin: .75rem 0;
    padding: .8rem;
    border-left: 3px solid var(--j223-accent);
    background: #031014;
}
.ct-copy-line span {
    color: var(--j223-accent);
    font-size: .74rem;
    font-weight: 900;
    text-transform: uppercase;
}
.ct-copy-line code {
    color: var(--cq-text, #edf5f5);
    overflow-wrap: anywhere;
}
.ct-guided-reason { color: var(--cq-muted, #b8c5c7); }
.ct-guided-success {
    margin: 0 .9rem .9rem;
    padding: 1rem 1.1rem;
    border-left: 4px solid var(--lesson-good, #78d39c);
    background: color-mix(in srgb, var(--lesson-good, #78d39c) 8%, var(--ct-deep));
}
.ct-guided-success p:last-child { margin-bottom: 0; }
.ct-guided-legacy { padding: 1rem; }
.ct-guided-brief dl { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .75rem; margin: 0; }
.ct-guided-brief dl > div { padding: .75rem; border: 1px solid var(--ct-line); }
.ct-guided-brief dt { color: var(--j223-accent); font-weight: 900; }
.ct-guided-brief dd { margin: .3rem 0 0; }
.ct-trace { padding: .75rem; white-space: pre-wrap; border: 1px solid var(--ct-line); background: var(--ct-deep); }
.ct-round-support {
    display: grid;
    gap: 1rem;
    margin: 1rem 0;
    padding: 1.1rem;
    border: 1px solid var(--ct-line);
    border-left: 4px solid var(--j223-accent);
    background: color-mix(in srgb, var(--j223-accent) 6%, var(--ct-panel));
}
.ct-round-support[hidden] { display: none; }
.ct-round-support h5 { margin: .25rem 0 .55rem; font-size: 1.2rem; }
.ct-round-support h6 { margin: .2rem 0 .55rem; font-size: 1rem; }
.ct-round-support header > p:last-child { margin-bottom: 0; }
.ct-task-steps {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .75rem;
}
.ct-task-steps article {
    display: grid;
    grid-template-columns: 2rem minmax(0, 1fr);
    gap: .75rem;
    min-width: 0;
    padding: 1rem;
    border: 1px solid var(--ct-line);
    background: var(--ct-deep);
}
.ct-task-steps article > span {
    display: grid;
    place-items: center;
    width: 2rem;
    height: 2rem;
    color: #031014;
    border-radius: 50%;
    background: var(--j223-accent);
    font-weight: 950;
}
.ct-task-steps strong { display: block; margin-bottom: .35rem; }
.ct-task-steps p { margin: 0; color: var(--cq-muted, #b8c5c7); }
.ct-task-steps code {
    padding: .12rem .35rem;
    color: var(--cq-text, #edf5f5);
    background: #031014;
}
.ct-variable-help,
.ct-round-support__rules {
    min-width: 0;
    border: 1px solid var(--ct-line);
    background: var(--ct-deep);
}
.ct-variable-help summary {
    min-height: 48px;
    padding: .85rem 1rem;
    color: var(--j223-accent);
    font-weight: 850;
    cursor: pointer;
}
.ct-variable-help > div,
.ct-round-support__rules { padding: 1rem; }
.ct-round-support__rules[hidden] { display: none; }
.ct-round-support__rules ul {
    display: grid;
    gap: .45rem;
    margin: .55rem 0 0;
    padding-left: 1.25rem;
}
.ct-hint-list { margin: .75rem 0 0; padding-left: 1.5rem; }
.ct-hint-list li + li { margin-top: .5rem; }

.ct-console {
    display: block;
    min-height: 58px;
    margin-top: 1rem;
    padding: .8rem 1rem;
    color: #d7f6ed;
    border: 1px solid var(--ct-line);
    border-left: 3px solid var(--lesson-good, #78d39c);
    background: #031014;
    font: 600 .85rem/1.5 ui-monospace, SFMono-Regular, Consolas, monospace;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.ct-console.is-error {
    color: #ffd8d3;
    border-left-color: var(--lesson-bad, #ef8b82);
}

.ct-guided-comparison {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, .9fr);
    gap: 1rem;
    align-items: start;
    margin-top: 1rem;
    padding: 1.1rem;
    border: 1px solid color-mix(in srgb, var(--lesson-good, #78d39c) 58%, var(--ct-line));
    border-left: 4px solid var(--lesson-good, #78d39c);
    background: color-mix(in srgb, var(--lesson-good, #78d39c) 8%, var(--ct-panel));
}

.ct-guided-comparison[hidden] { display: none; }
.ct-guided-comparison h5 { margin: .25rem 0 .55rem; font-size: 1.2rem; }
.ct-guided-comparison p:last-child { margin-bottom: 0; }
.ct-guided-comparison pre {
    min-width: 0;
    margin: 0;
    padding: 1rem;
    border: 1px solid var(--ct-line);
    background: #031014;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}
.ct-guided-comparison .card-action { grid-column: 1 / -1; justify-self: start; }

.ct-review {
    display: grid;
    gap: .65rem;
    margin: 1rem 0 0;
    padding: 1rem;
    border: 1px solid var(--ct-line);
}

.ct-review legend {
    padding: 0 .45rem;
    color: var(--j223-accent);
    font-weight: 900;
}

.ct-review > p { margin: 0 0 .25rem; font-weight: 800; }
.ct-review label,
.ct-written-exam label {
    display: flex;
    align-items: flex-start;
    gap: .7rem;
    min-height: 48px;
    padding: .75rem;
    border: 1px solid var(--ct-line);
    background: rgba(255, 255, 255, .025);
    cursor: pointer;
}

.ct-review input { margin-top: .18rem; accent-color: var(--j223-accent); }
.ct-written-exam > label { min-height: auto; padding: 0; border: 0; background: transparent; font-weight: 900; }
.ct-written-exam textarea { min-height: 180px; margin: .55rem 0 1rem; border: 1px solid var(--ct-line); }
.ct-written-exam textarea:focus { border-color: var(--j223-accent); outline: 3px solid color-mix(in srgb, var(--j223-accent) 22%, transparent); }

.ct-mission {
    --ct-mission-surface: color-mix(in srgb, var(--ct-panel) 88%, #10282f);
    --ct-mission-surface-raised: color-mix(in srgb, var(--ct-panel) 72%, #17343b);
    gap: 1.25rem;
}

.ct-mission .ct-mission-hero {
    align-items: center;
    padding: clamp(1.15rem, 3vw, 1.7rem);
    background:
        linear-gradient(115deg, color-mix(in srgb, var(--j223-accent) 10%, transparent), transparent 48%),
        var(--ct-deep);
}

.ct-mission-hero__copy {
    max-width: 72ch;
}

.ct-mission .ct-mission-hero h3 {
    margin: .3rem 0 .45rem;
    font-size: clamp(1.55rem, 3.2vw, 2.35rem);
    line-height: 1.08;
}

.ct-mission-hero__copy > p:last-child {
    margin-bottom: 0;
    color: var(--cq-muted, #b8c5c7);
}

.ct-mission-hero__status {
    display: grid;
    justify-items: end;
    gap: .55rem;
}

.ct-replay-badge,
.ct-phase-chip {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: .35rem .65rem;
    color: var(--j223-accent);
    border: 1px solid color-mix(in srgb, var(--j223-accent) 42%, var(--ct-line));
    background: color-mix(in srgb, var(--j223-accent) 6%, var(--ct-deep));
    font-size: .7rem;
    font-style: normal;
    font-weight: 900;
    letter-spacing: .045em;
    text-transform: uppercase;
}

.ct-mission-route {
    padding: .45rem;
    border: 1px solid var(--ct-line);
    background: var(--ct-deep);
}

.ct-mission-route ol {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .45rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.ct-mission-route li {
    position: relative;
    display: grid;
    grid-template-columns: 2.2rem minmax(0, 1fr) auto;
    gap: .2rem .7rem;
    align-items: center;
    min-width: 0;
    min-height: 68px;
    padding: .7rem;
    color: var(--cq-muted, #b8c5c7);
    border: 1px solid transparent;
    background: rgba(255, 255, 255, .025);
}

.ct-mission-route li > span {
    display: grid;
    grid-row: 1 / 3;
    place-items: center;
    width: 2.2rem;
    height: 2.2rem;
    color: var(--cq-muted, #b8c5c7);
    border: 1px solid var(--ct-line);
    border-radius: 50%;
    font-size: .78rem;
    font-weight: 950;
}

.ct-mission-route li strong,
.ct-mission-route li small,
.ct-mission-route li em {
    display: block;
}

.ct-mission-route li strong {
    color: var(--cq-text, #edf5f5);
}

.ct-mission-route li small {
    margin-top: .12rem;
    color: var(--cq-muted, #b8c5c7);
}

.ct-mission-route li em {
    color: var(--cq-muted, #b8c5c7);
    font-size: .68rem;
    font-style: normal;
    font-weight: 900;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.ct-mission-route li.is-active {
    border-color: color-mix(in srgb, var(--j223-accent) 48%, var(--ct-line));
    background: color-mix(in srgb, var(--j223-accent) 8%, var(--ct-panel));
    box-shadow: inset 0 -3px var(--j223-accent);
}

.ct-mission-route li.is-active > span {
    color: #031014;
    border-color: var(--j223-accent);
    background: var(--j223-accent);
}

.ct-mission-route li.is-active em {
    color: var(--j223-accent);
}

.ct-mission-route li.is-complete {
    border-color: color-mix(in srgb, var(--lesson-good, #78d39c) 44%, var(--ct-line));
}

.ct-mission-route li.is-complete > span {
    color: #031014;
    border-color: var(--lesson-good, #78d39c);
    background: var(--lesson-good, #78d39c);
}

.ct-mission-route li.is-complete em {
    color: var(--lesson-good, #78d39c);
}

.ct-mission .ct-mission-brief {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(320px, .75fr);
    gap: 1rem;
    align-items: center;
    padding: 1.15rem;
    background: var(--ct-mission-surface);
}

.ct-mission .ct-mission-brief h4 {
    margin-bottom: 0;
    max-width: 68ch;
    font-size: clamp(1.05rem, 2vw, 1.3rem);
}

.ct-mission-brief ul {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .5rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.ct-mission-brief li {
    display: grid;
    gap: .4rem;
    min-width: 0;
    padding: .7rem;
    border: 1px solid var(--ct-line);
    background: var(--ct-deep);
    font-size: .8rem;
    line-height: 1.35;
}

.ct-mission-brief li span {
    color: var(--j223-accent);
    font-size: .72rem;
    font-weight: 950;
}

.ct-mission-stage {
    min-width: 0;
    padding: 1.15rem;
    border: 1px solid var(--ct-line);
    background: var(--ct-deep);
}

.ct-mission-stage__header {
    display: grid;
    grid-template-columns: 2.65rem minmax(0, 1fr) auto;
    gap: .9rem;
    align-items: start;
    margin-bottom: 1rem;
}

.ct-mission-stage__header h4 {
    margin: .2rem 0 .3rem;
    font-size: clamp(1.15rem, 2.2vw, 1.45rem);
}

.ct-mission-stage__header p:last-child {
    max-width: 68ch;
    margin: 0;
    color: var(--cq-muted, #b8c5c7);
}

.ct-phase-number {
    display: grid;
    place-items: center;
    width: 2.65rem;
    height: 2.65rem;
    color: #031014;
    background: var(--j223-accent);
    font-size: .82rem;
    font-weight: 950;
}

.ct-mission-workspace {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(290px, .65fr);
    gap: 1rem;
    align-items: stretch;
}

.ct-mission .ct-mission-editor {
    display: grid;
    grid-template-rows: auto minmax(240px, 1fr) auto;
    margin: 0;
}

.ct-mission .ct-mission-editor textarea {
    min-height: clamp(280px, 38vw, 470px);
}

.ct-practical .decision-feedback--needs-improvement {
    --feedback-accent: var(--j223-accent);
    background: linear-gradient(
        135deg,
        color-mix(in srgb, var(--j223-accent) 12%, rgba(7, 20, 25, .98)),
        rgba(7, 20, 25, .98)
    );
}

.ct-practical .decision-feedback__title {
    color: var(--cq-text, #edf5f5);
}

.ct-editor-help {
    margin: 0;
    padding: .65rem .8rem;
    color: var(--cq-muted, #b8c5c7);
    border-top: 1px solid var(--ct-line);
    font-size: .8rem;
}

.ct-mission-task-card {
    min-width: 0;
    border: 1px solid var(--ct-line);
    background: var(--ct-mission-surface);
}

.ct-mission-task-card__heading,
.ct-mission-goal,
.ct-mission-inputs {
    padding: .85rem;
}

.ct-mission-task-card__heading {
    border-bottom: 1px solid var(--ct-line);
}

.ct-mission-task-card h5,
.ct-mission-task-card h6 {
    margin: .2rem 0 0;
}

.ct-mission-goal {
    margin: 0;
    color: var(--cq-text, #edf5f5);
    line-height: 1.55;
}

.ct-target-output {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    margin: 0 .85rem;
    padding: .75rem;
    color: var(--cq-muted, #b8c5c7);
    border: 1px solid color-mix(in srgb, var(--j223-accent) 45%, var(--ct-line));
    background: var(--ct-deep);
}

.ct-target-output code {
    color: var(--j223-accent);
    font-size: 1rem;
    font-weight: 900;
}

.ct-mission-inputs h6 {
    margin-bottom: .65rem;
    color: var(--j223-accent);
}

.ct-preloaded-note {
    display: grid;
    gap: .25rem;
    margin-bottom: .8rem;
    padding: .75rem;
    border-left: 3px solid var(--j223-accent);
    background: color-mix(in srgb, var(--j223-accent) 10%, var(--ct-deep));
}

.ct-preloaded-note strong,
.ct-preloaded-note span {
    display: block;
}

.ct-preloaded-note strong {
    color: var(--cq-text, #edf5f5);
    font-size: .82rem;
}

.ct-preloaded-note span {
    color: var(--cq-muted, #b8c5c7);
    font-size: .78rem;
    line-height: 1.45;
}

.ct-mission-inputs dl {
    display: grid;
    gap: .45rem;
    margin: 0;
}

.ct-mission-inputs dl > div {
    display: grid;
    grid-template-columns: minmax(90px, .65fr) minmax(0, 1.35fr);
    gap: .65rem;
    align-items: start;
    padding: .65rem;
    border: 1px solid var(--ct-line);
    background: var(--ct-deep);
}

.ct-mission-inputs dt,
.ct-mission-inputs dd {
    min-width: 0;
    margin: 0;
}

.ct-mission-inputs dt code {
    color: var(--j223-accent);
    overflow-wrap: anywhere;
}

.ct-mission-inputs dd {
    display: grid;
    gap: .12rem;
}

.ct-mission-inputs dd span {
    color: var(--cq-muted, #b8c5c7);
    font-size: .78rem;
    line-height: 1.35;
}

.ct-visible-test--compact {
    margin: .85rem;
}

.ct-mission-action-bar,
.ct-mission-submit-row,
.ct-exam-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.ct-mission-action-bar {
    margin-top: 1rem;
    padding: .8rem;
    border: 1px solid var(--ct-line);
    background: var(--ct-mission-surface);
}

.ct-mission-action-bar > div:first-child,
.ct-mission-submit-row > div {
    display: grid;
    gap: .12rem;
}

.ct-mission-action-bar span,
.ct-mission-submit-row span {
    color: var(--cq-muted, #b8c5c7);
    font-size: .8rem;
}

.ct-mission .ct-mission-support {
    display: block;
    margin-top: 1rem;
    padding: 0;
    background: var(--ct-mission-surface);
}

.ct-mission-support summary {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 60px;
    padding: .8rem 1rem;
    list-style: none;
    cursor: pointer;
}

.ct-mission-support summary::-webkit-details-marker {
    display: none;
}

.ct-mission-support summary span {
    display: grid;
    gap: .08rem;
}

.ct-mission-support summary small {
    color: var(--j223-accent);
    font-weight: 900;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.ct-mission-support summary em {
    color: var(--cq-muted, #b8c5c7);
    font-size: .78rem;
    font-style: normal;
}

.ct-mission-support summary::after {
    content: "+";
    display: grid;
    place-items: center;
    width: 2rem;
    height: 2rem;
    color: var(--j223-accent);
    border: 1px solid var(--ct-line);
    font-size: 1.2rem;
}

.ct-mission-support[open] summary {
    border-bottom: 1px solid var(--ct-line);
}

.ct-mission-support[open] summary::after {
    content: "−";
}

.ct-mission-support__body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
    gap: 1rem;
    align-items: center;
    padding: 1rem;
}

.ct-mission-support__body > p {
    margin: 0;
    color: var(--cq-muted, #b8c5c7);
}

.ct-mission-support__body .j223-hint-list {
    grid-column: 1 / -1;
}

.ct-mission .ct-review {
    margin: 0;
    padding: 0;
    border: 0;
}

.ct-mission .ct-review legend {
    width: 100%;
    margin-bottom: .8rem;
    padding: 0;
    color: var(--cq-text, #edf5f5);
    font-size: 1rem;
}

.ct-review-options {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .7rem;
}

.ct-mission .ct-review-options label {
    position: relative;
    display: grid;
    grid-template-columns: 2rem minmax(0, 1fr);
    gap: .7rem;
    align-items: start;
    min-height: 112px;
    margin: 0;
    padding: .9rem;
    background: var(--ct-mission-surface);
}

.ct-mission .ct-review-options label:hover {
    border-color: color-mix(in srgb, var(--j223-accent) 52%, var(--ct-line));
}

.ct-mission .ct-review-options label:has(input:checked) {
    border-color: var(--j223-accent);
    background: color-mix(in srgb, var(--j223-accent) 9%, var(--ct-panel));
    box-shadow: inset 0 -3px var(--j223-accent);
}

.ct-mission .ct-review-options input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
}

.ct-mission .ct-review-options label:focus-within {
    outline: 3px solid color-mix(in srgb, var(--j223-accent) 68%, white);
    outline-offset: 2px;
}

.ct-review-option__number {
    display: grid;
    place-items: center;
    width: 2rem;
    height: 2rem;
    color: var(--j223-accent);
    border: 1px solid var(--j223-accent);
    border-radius: 50%;
    font-size: .72rem;
    font-weight: 950;
}

.ct-mission .ct-review-options label:has(input:checked) .ct-review-option__number {
    color: #031014;
    background: var(--j223-accent);
}

.ct-mission-submit-row {
    margin-top: 1rem;
    padding: .85rem;
    border-top: 1px solid var(--ct-line);
}

.ct-mission-stage--exam {
    margin: 0;
    border-color: color-mix(in srgb, var(--j223-accent) 45%, var(--ct-line));
    background:
        linear-gradient(135deg, color-mix(in srgb, var(--j223-accent) 6%, transparent), transparent 50%),
        var(--ct-deep);
}

.ct-exam-question {
    padding: 1rem;
    border-left: 4px solid var(--j223-accent);
    background: var(--ct-mission-surface);
}

.ct-exam-question__label {
    color: var(--j223-accent);
    font-size: .72rem;
    font-weight: 900;
    letter-spacing: .05em;
    text-transform: uppercase;
}

.ct-exam-question p {
    max-width: 76ch;
    margin: .55rem 0 0;
    color: var(--cq-text, #edf5f5);
    font-size: clamp(1rem, 1.8vw, 1.18rem);
    line-height: 1.6;
}

.ct-response-builder {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .65rem;
    margin: 1rem 0;
}

.ct-response-builder article {
    display: grid;
    grid-template-columns: 2rem minmax(0, 1fr);
    gap: .7rem;
    align-items: start;
    padding: .8rem;
    border: 1px solid var(--ct-line);
    background: var(--ct-mission-surface);
}

.ct-response-builder article > span {
    display: grid;
    place-items: center;
    width: 2rem;
    height: 2rem;
    color: #031014;
    background: var(--j223-accent);
    font-weight: 950;
}

.ct-response-builder strong,
.ct-response-builder small {
    display: block;
}

.ct-response-builder small {
    margin-top: .18rem;
    color: var(--cq-muted, #b8c5c7);
    line-height: 1.4;
}

.ct-mission .ct-written-exam > label {
    margin-top: 1rem;
}

.ct-mission .ct-written-exam textarea {
    min-height: 220px;
    margin-bottom: .6rem;
    font: inherit;
    line-height: 1.6;
}

.ct-exam-footer {
    align-items: center;
}

.ct-exam-footer p {
    flex: 1 1 auto;
    margin: 0;
    color: var(--cq-muted, #b8c5c7);
}

.ct-exam-footer > span {
    flex: 0 0 auto;
    color: var(--j223-accent);
    font-size: .78rem;
    font-weight: 900;
}

.ct-mission .ct-mission-complete {
    padding: 1.2rem;
    border-left: 4px solid var(--lesson-good, #78d39c);
}

.ct-mission .ct-mission-complete h4 {
    font-size: 1.3rem;
}

.ct-practical .j223-round-strip button.is-active {
    background: color-mix(in srgb, var(--j223-accent) 8%, #07161b);
}

.ct-practical .j223-round-strip button.is-complete::after {
    content: "Verified";
    color: var(--lesson-good, #78d39c);
}

.ct-practical button,
.ct-practical textarea,
.ct-learn button { touch-action: manipulation; }

@media (max-width: 760px) {
    .ct-concept-grid,
    .ct-code-compare,
    .ct-worked-controls {
        grid-template-columns: 1fr;
    }
    .ct-worked-example,
    .ct-code-workspace,
    .ct-concept-card,
    .ct-section-heading { padding: 1rem; }
    .ct-workspace-header { align-items: stretch; flex-direction: column; }
    .ct-editor-shell textarea { min-height: 220px; font-size: 1rem; }
    .ct-guided-brief dl { grid-template-columns: 1fr; }
    .ct-task-steps { grid-template-columns: 1fr; }
    .ct-guided-comparison { grid-template-columns: 1fr; }
    .ct-code-walkthrough li { grid-template-columns: 3.8rem minmax(0, 1fr); }
    .ct-code-walkthrough p { grid-column: 2; }
    .ct-code-compare pre,
    .ct-visible-test pre { font-size: .82rem; }
    .ct-mission .ct-mission-brief,
    .ct-mission-workspace,
    .ct-review-options,
    .ct-response-builder {
        grid-template-columns: 1fr;
    }
    .ct-mission-brief ul {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    .ct-mission-stage__header {
        grid-template-columns: 2.65rem minmax(0, 1fr);
    }
    .ct-mission-stage__header .ct-phase-chip {
        grid-column: 2;
        justify-self: start;
    }
    .ct-mission .ct-review-options label {
        min-height: 76px;
    }
    .ct-mission-support__body {
        grid-template-columns: 1fr;
    }
    .ct-mission-support__body .j223-hint-list {
        grid-column: 1;
    }
}

@media (max-width: 430px) {
    .ct-practical .j223-round-strip {
        grid-template-columns: 1fr;
    }
    .ct-practical .j223-round-strip button { min-height: 58px; }
    .ct-worked-example > header { flex-direction: column; }
    .ct-code-workspace .j223-actions { display: grid; grid-template-columns: 1fr; }
    .ct-code-workspace .j223-actions .card-action,
    .ct-practical .j223-actions .card-action { width: 100%; min-height: 48px; }
    .ct-guided-brief__summary {
        align-items: stretch;
        flex-direction: column;
        padding: .85rem;
    }
    .ct-guided-brief:not([open]) .ct-guided-brief__summary h5 { display: none; }
    .ct-guided-brief__toggle { justify-content: space-between; width: 100%; }
    .ct-guided-step { grid-template-columns: 1fr; margin-inline: .6rem; padding: .85rem; }
    .ct-round-support { padding: .75rem; }
    .ct-round-support__grid > section {
        padding: 0;
        border: 0;
        background: transparent;
    }
    .ct-round-support .ct-input-table {
        display: block;
        min-width: 0;
    }
    .ct-round-support .ct-input-table thead {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }
    .ct-round-support .ct-input-table tbody {
        display: grid;
        gap: .65rem;
    }
    .ct-round-support .ct-input-table tr {
        display: grid;
        gap: .3rem;
        padding: .75rem;
        border: 1px solid var(--ct-line);
        background: #031014;
    }
    .ct-round-support .ct-input-table th,
    .ct-round-support .ct-input-table td {
        display: block;
        padding: 0;
        border: 0;
        white-space: normal;
    }
    .ct-round-support .ct-input-table td:nth-child(2)::before {
        content: "Example value: ";
        color: var(--j223-accent);
        font-weight: 850;
    }
    .ct-round-support .ct-input-table td:nth-child(3)::before {
        content: "Meaning: ";
        color: var(--j223-accent);
        font-weight: 850;
    }
    .ct-code-walkthrough li { grid-template-columns: 1fr; }
    .ct-code-walkthrough p { grid-column: 1; }
    .ct-input-table { min-width: 560px; }
    .ct-mission .ct-mission-hero,
    .ct-mission .ct-mission-brief,
    .ct-mission-stage {
        padding: .85rem;
    }
    .ct-mission-hero__status {
        justify-items: start;
    }
    .ct-mission-route ol {
        grid-template-columns: 1fr;
    }
    .ct-mission-route li {
        min-height: 58px;
    }
    .ct-mission-brief ul {
        grid-template-columns: 1fr;
    }
    .ct-mission-brief li {
        grid-template-columns: 1.5rem minmax(0, 1fr);
        align-items: center;
    }
    .ct-mission-stage__header {
        grid-template-columns: 2.35rem minmax(0, 1fr);
        gap: .7rem;
    }
    .ct-phase-number {
        width: 2.35rem;
        height: 2.35rem;
    }
    .ct-mission-inputs dl > div {
        grid-template-columns: 1fr;
    }
    .ct-mission-action-bar,
    .ct-mission-submit-row,
    .ct-exam-footer,
    .ct-mission-support summary {
        align-items: stretch;
        flex-direction: column;
    }
    .ct-mission-action-bar .j223-actions,
    .ct-mission-submit-row .card-action,
    .ct-exam-footer .card-action {
        width: 100%;
    }
    .ct-mission-support summary::after {
        position: absolute;
        right: .8rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .ct-practical *,
    .ct-learn * {
        scroll-behavior: auto !important;
        animation: none !important;
        transition-duration: .01ms !important;
    }
}