@import url('https://fonts.googleapis.com/css2?family=Silkscreen:wght@400;700&family=Space+Mono:wght@400;700&display=swap');

:root {
    --ds-bg: #050b08;
    --ds-screen: #06100d;
    --ds-frame: #0d241c;
    --ds-panel: #122d22;
    --ds-panel-dark: #091a14;
    --ds-line: #2f6653;
    --ds-line-dim: #183b2e;
    --ds-signal: #34c998;
    --ds-signal-bright: #73f0bb;
    --ds-phosphor: #d5dc73;
    --ds-amber: #e0a34b;
    --ds-alert: #ff7a70;
    --ds-ink: #dce8d8;
    --ds-muted: #7c9d8c;
    --ds-black: #000704;
    --ds-shadow: rgba(0, 0, 0, 0.72);
    --ds-grid: rgba(52, 201, 152, 0.06);
    --ds-scanline: rgba(0, 7, 4, 0.18);
    --ds-glow: rgba(52, 201, 152, 0.24);
    --ds-alert-glow: rgba(217, 91, 91, 0.2);
    --font-pixel: 'Silkscreen', 'Courier New', monospace;
    --font-mono: 'Space Mono', 'Courier New', monospace;
    --font-ui: var(--font-mono);
    --font-script: var(--font-mono);
    --font-serif: var(--font-mono);
    --size-2xs: 0.625rem;
    --size-xs: 0.72rem;
    --size-sm: 0.82rem;
    --size-md: 0.95rem;
    --size-lg: clamp(1rem, 1.5vw, 1.22rem);
    --size-xl: clamp(1.35rem, 3vw, 2.3rem);
    --size-hero: clamp(2rem, 6vw, 5.1rem);
    --align-start: left;
    --align-center: center;
    --gradient-brand: linear-gradient(135deg, var(--ds-bg), var(--ds-panel-dark));
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

html {
    color-scheme: dark;
    background: var(--ds-bg);
}

body {
    min-width: 320px;
    min-height: 100vh;
    padding: clamp(8px, 2vw, 24px);
    overflow-x: hidden;
    font-family: var(--font-mono);
    font-size: var(--size-md);
    line-height: 1.55;
    color: var(--ds-ink);
    background:
        linear-gradient(var(--ds-grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--ds-grid) 1px, transparent 1px),
        var(--ds-bg);
    background-size: 32px 32px;
}

button,
input,
textarea {
    font: inherit;
}

button {
    min-height: 48px;
    padding: 12px 18px;
    border: 2px solid var(--ds-signal);
    border-radius: 0;
    color: var(--ds-phosphor);
    background: var(--ds-panel-dark);
    box-shadow: 4px 4px 0 var(--ds-line-dim);
    text-align: var(--align-start);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    cursor: pointer;
    transition: transform 140ms ease, background 140ms ease, color 140ms ease, box-shadow 140ms ease;
}

button:hover {
    color: var(--ds-screen);
    background: var(--ds-phosphor);
    box-shadow: 4px 4px 0 var(--ds-signal);
    transform: translate(-1px, -1px);
}

button:active {
    transform: translate(3px, 3px);
    box-shadow: 1px 1px 0 var(--ds-line);
}

button:focus-visible {
    outline: 3px solid var(--ds-phosphor);
    outline-offset: 4px;
}

/* Headings receive programmatic focus on screen changes for screen readers,
   but they are not interactive — no box outline theater for text. */
.question-text:focus,
.result-classification h2:focus {
    outline: none;
}

button:disabled {
    color: var(--ds-muted);
    border-color: var(--ds-line);
    background: var(--ds-frame);
    box-shadow: none;
    cursor: not-allowed;
    transform: none;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-pixel);
    font-weight: 400;
    line-height: 1.25;
    text-transform: uppercase;
}

.background-layer {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    background: var(--gradient-brand);
    transition: background 300ms ease;
}

.background-layer::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, transparent 30%, var(--ds-shadow) 100%);
}

.script-text {
    position: absolute;
    color: var(--ds-line);
    font-family: var(--font-mono);
    font-size: var(--size-2xs);
    white-space: nowrap;
    opacity: 0.28;
    pointer-events: none;
}

.container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 1320px;
    min-height: calc(100vh - clamp(16px, 4vw, 48px));
    margin: 0 auto;
    overflow: hidden;
    border: 2px solid var(--ds-line);
    border-radius: 0;
    color: var(--ds-ink);
    background: var(--ds-screen);
    box-shadow: 0 0 0 4px var(--ds-frame), 14px 14px 0 var(--ds-shadow);
}

.container::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 20;
    pointer-events: none;
    background: repeating-linear-gradient(
        0deg,
        transparent 0,
        transparent 2px,
        var(--ds-scanline) 3px,
        var(--ds-scanline) 4px
    );
    opacity: 0.5;
}

.terminal-chrome {
    position: relative;
    z-index: 21;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    min-height: 64px;
    padding: 12px 18px;
    border-bottom: 2px solid var(--ds-line);
    color: var(--ds-muted);
    background: var(--ds-frame);
    font-size: var(--size-xs);
    text-transform: uppercase;
}

.terminal-brand {
    color: var(--ds-phosphor);
    font-family: var(--font-pixel);
    font-size: var(--size-sm);
}

.terminal-subsystem {
    margin-left: 8px;
    color: var(--ds-signal);
}

.terminal-status {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px 18px;
}

.terminal-status strong {
    color: var(--ds-alert);
    font-weight: 400;
}

.screen {
    display: none;
    position: relative;
    min-height: calc(100vh - 132px);
    padding: clamp(20px, 4vw, 50px);
}

.screen.active {
    display: block;
    animation: screen-in 220ms ease-out;
}

@keyframes screen-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.landing-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.82fr) minmax(360px, 1.18fr);
    gap: clamp(28px, 5vw, 72px);
    align-items: start;
    min-height: calc(100vh - 230px);
}

.landing-signal {
    align-self: center;
}

.landing-copy {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.boot-log {
    display: grid;
    gap: 3px;
    margin-bottom: clamp(20px, 3vh, 32px);
    color: var(--ds-signal);
    font-size: var(--size-xs);
    text-transform: uppercase;
}

.boot-log span:first-child,
.boot-log span:nth-child(2) {
    color: var(--ds-phosphor);
}

h1 {
    max-width: 10ch;
    margin-bottom: 24px;
    color: var(--ds-phosphor);
    font-size: var(--size-hero);
    letter-spacing: -0.05em;
    text-align: var(--align-start);
    text-shadow: 4px 4px 0 var(--ds-line-dim);
}

.intro-copy {
    display: grid;
    gap: 14px;
    max-width: 66ch;
    margin-bottom: 32px;
}

.intro-copy h2 {
    color: var(--ds-phosphor);
    font-family: var(--font-pixel);
    font-size: var(--size-lg);
    line-height: 1.35;
}

.intro-copy p {
    color: var(--ds-ink);
    font-size: var(--size-sm);
    line-height: 1.7;
}

.intro-copy p:last-child {
    color: var(--ds-phosphor);
    font-weight: 700;
}

#startButton {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-width: min(100%, 320px);
    color: var(--ds-phosphor);
    font-family: var(--font-pixel);
    font-size: var(--size-sm);
}

.key-hint {
    color: var(--ds-signal);
}

.button-key {
    display: inline-grid;
    min-width: 28px;
    min-height: 26px;
    padding: 3px 6px;
    place-items: center;
    border: 1px solid currentColor;
    color: inherit;
    font-family: var(--font-pixel);
    font-size: var(--size-2xs);
}

.signal-frame {
    margin: 0;
    border: 2px solid var(--ds-line);
    background: var(--ds-panel-dark);
    box-shadow: 7px 7px 0 var(--ds-shadow);
}

.signal-frame-header,
.signal-frame figcaption {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 8px 10px;
    color: var(--ds-signal);
    background: var(--ds-frame);
    font-size: var(--size-2xs);
    text-transform: uppercase;
}

.signal-frame-header {
    border-bottom: 1px solid var(--ds-line);
}

.signal-frame figcaption {
    border-top: 1px solid var(--ds-line);
    color: var(--ds-muted);
}

.signal-image-wrap {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--ds-black);
}

.signal-image-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: repeating-linear-gradient(0deg, transparent 0 3px, var(--ds-scanline) 4px);
}

.signal-image-wrap img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    image-rendering: pixelated;
    filter: saturate(0.86) contrast(1.08);
}

.quiz-grid {
    min-height: calc(100vh - 220px);
}

.quiz-primary {
    display: grid;
    grid-template-columns: minmax(280px, 0.72fr) minmax(420px, 1.28fr);
    grid-template-areas:
        'telemetry predictor'
        'question scene'
        'story story';
    gap: 10px 14px;
    align-items: stretch;
}

#quizScreen {
    padding: clamp(10px, 1.5vw, 18px);
}

.story-box {
    grid-column: 1 / -1;
}

.quiz-telemetry {
    display: grid;
    grid-area: telemetry;
    gap: 8px;
}

.quiz-telemetry .hud-container,
.quiz-telemetry .progress-shell {
    display: block;
    grid-column: auto;
}

.quiz-telemetry .reality-integrity,
.quiz-telemetry .progress-shell {
    padding: 8px 10px;
}

.quiz-telemetry .integrity-meter {
    height: 9px;
    margin: 5px 0 3px;
}

.quiz-telemetry .progress-text {
    margin-bottom: 3px;
}

.quiz-telemetry .progress-timeline {
    height: 18px;
}

.quiz-telemetry .timeline-track,
.quiz-telemetry .timeline-notches {
    inset: 5px 0 auto;
    height: 9px;
}

.quiz-telemetry .timeline-playhead {
    top: 2px;
    height: 15px;
}

.hud-container {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 180px;
    gap: 12px;
    margin-bottom: 0;
}

.reality-integrity,
.narrative-tension,
.progress-shell,
.question-panel,
.story-box,
.genre-predictor,
.result-classification,
.result-narrative,
.results-dashboard {
    border: 1px solid var(--ds-line);
    border-radius: 0;
    background: var(--ds-panel-dark);
}

.reality-integrity,
.narrative-tension {
    padding: 12px;
}

.hud-label-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

.reality-label,
.tension-label,
.panel-kicker,
.story-label {
    color: var(--ds-signal);
    font-family: var(--font-pixel);
    font-size: var(--size-2xs);
    text-transform: uppercase;
}

.reality-value {
    color: var(--ds-phosphor);
    font-family: var(--font-pixel);
    font-size: var(--size-sm);
}

.reality-value.critical {
    color: var(--ds-alert);
}

.integrity-meter,
.genre-bar-track,
.breakdown-track,
.metric-meter-track {
    position: relative;
    height: 13px;
    overflow: hidden;
    border: 1px solid var(--ds-line);
    background:
        repeating-linear-gradient(
            90deg,
            var(--ds-line-dim) 0,
            var(--ds-line-dim) calc(10% - 2px),
            var(--ds-screen) calc(10% - 2px),
            var(--ds-screen) 10%
        );
}

.integrity-meter {
    margin: 9px 0 6px;
}

.integrity-meter-fill,
.genre-bar-fill,
.breakdown-fill,
.metric-meter-fill {
    height: 100%;
    background: var(--ds-signal);
    transition: width 220ms ease;
}

.reality-warning {
    min-height: 1.4em;
    color: var(--ds-muted);
    font-size: var(--size-2xs);
    text-transform: uppercase;
}

.reality-warning.active {
    color: var(--ds-alert);
}

.narrative-tension {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.waveform {
    display: flex;
    align-items: center;
    gap: 5px;
    height: 34px;
}

.wave-bar {
    width: 7px;
    min-height: 8px;
    background: var(--ds-signal);
    box-shadow: 0 0 8px var(--ds-glow);
    transition: height 180ms ease;
}

.progress-shell {
    padding: 11px 12px 14px;
}

.progress-text {
    margin-bottom: 8px;
    color: var(--ds-phosphor);
    font-family: var(--font-pixel);
    font-size: var(--size-xs);
}

.progress-timeline {
    position: relative;
    height: 24px;
}

.timeline-track {
    position: absolute;
    inset: 8px 0 auto;
    height: 11px;
    overflow: hidden;
    border: 1px solid var(--ds-line);
    background: var(--ds-screen);
}

.timeline-progress {
    width: 0;
    height: 100%;
    background: var(--ds-signal);
    transition: width 220ms ease;
}

.timeline-notches {
    position: absolute;
    inset: 8px 0 auto;
    z-index: 2;
    display: flex;
    height: 11px;
    pointer-events: none;
}

.timeline-notch {
    flex: 1;
    border-right: 1px solid var(--ds-screen);
}

.timeline-playhead {
    position: absolute;
    z-index: 3;
    top: 4px;
    left: 0;
    width: 7px;
    height: 19px;
    background: var(--ds-phosphor);
    box-shadow: 0 0 9px var(--ds-glow);
    transform: translateX(-3px);
    transition: left 220ms ease;
}

.question-panel {
    display: flex;
    grid-area: question;
    min-height: 100%;
    padding: clamp(18px, 3vw, 30px);
    flex-direction: column;
    justify-content: center;
}

#quizScreen .question-panel {
    padding: clamp(10px, 1.5vw, 16px);
}

#quizScreen .question-text {
    min-height: 3.5em;
    margin: 8px 0;
}

#quizScreen .response-required {
    margin-bottom: 8px;
}

#quizScreen .quiz-status {
    margin-top: 6px;
}

.question-text {
    max-width: 36ch;
    min-height: 5em;
    margin: 18px 0;
    color: var(--ds-ink);
    font-family: var(--font-mono);
    font-size: var(--size-lg);
    font-weight: 700;
    text-align: var(--align-start);
    text-transform: none;
}

.response-required {
    margin-bottom: 18px;
    color: var(--ds-muted);
    font-size: var(--size-xs);
    text-transform: uppercase;
}

.options {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.option-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 58px;
    color: var(--ds-phosphor);
    font-family: var(--font-pixel);
}

.quiz-status,
.app-status {
    min-height: 1.6em;
    margin-top: 12px;
    color: var(--ds-phosphor);
    font-size: var(--size-xs);
    text-transform: uppercase;
}

.signal-scene {
    grid-area: scene;
    align-self: stretch;
}

#signalSceneFrame .signal-frame-header {
    padding: 5px 8px;
}

#signalSceneFrame figcaption {
    display: none;
}

.story-box {
    grid-area: story;
    position: relative;
    padding: 18px;
    overflow: hidden;
}

#quizScreen .story-box {
    padding: 10px 12px;
}

#quizScreen .story-label,
#quizScreen .story-genre {
    margin-bottom: 6px;
}

#quizScreen .story-genre {
    color: var(--ds-alert);
    font-size: var(--size-md);
}

#quizScreen .story-content {
    font-size: var(--size-md);
    line-height: 1.5;
}

#quizScreen .story-page {
    margin-top: 6px;
}

.story-box::before {
    content: '';
}

.story-label {
    margin-bottom: 10px;
}

.story-genre {
    margin-bottom: 10px;
    color: var(--ds-phosphor);
    font-size: var(--size-sm);
}

.story-content {
    color: var(--ds-ink);
    font-size: var(--size-sm);
    line-height: 1.65;
}

.story-page {
    margin-top: 12px;
    color: var(--ds-muted);
    font-size: var(--size-2xs);
    text-align: var(--align-start);
    text-transform: uppercase;
}

.genre-predictor {
    grid-area: predictor;
    position: static;
    padding: 12px;
    align-self: stretch;
}

#quizScreen .genre-predictor-label {
    margin-bottom: 8px;
}

#quizScreen .genre-predictor-bars {
    gap: 4px;
}

#quizScreen .genre-prediction-tag {
    margin-top: 8px;
    padding-top: 7px;
}

.genre-predictor-label,
.breakdown-header,
.metrics-header,
.scatter-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
    color: var(--ds-signal);
    font-family: var(--font-pixel);
    font-size: var(--size-2xs);
    font-weight: 400;
    text-transform: uppercase;
}

.signal-dot,
.indicator {
    width: 8px;
    height: 8px;
    flex: 0 0 8px;
    background: var(--ds-signal);
}

.genre-predictor-bars,
.genre-breakdown-grid {
    display: grid;
    gap: 8px;
}

.genre-bar-row,
.breakdown-bar-row {
    display: grid;
    grid-template-columns: minmax(86px, 0.9fr) minmax(70px, 1.1fr) 6ch;
    gap: 8px;
    align-items: center;
}

.genre-bar-name,
.breakdown-name,
.genre-bar-score,
.breakdown-score {
    color: var(--ds-muted);
    font-size: var(--size-2xs);
    overflow-wrap: anywhere;
}

.genre-bar-score,
.breakdown-score {
    color: var(--ds-phosphor);
    text-align: right;
}

.genre-bar-track,
.breakdown-track {
    height: 9px;
}

.genre-prediction-tag {
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--ds-line);
    color: var(--ds-phosphor);
    font-size: var(--size-xs);
    text-transform: uppercase;
}

.genre-predictor-empty {
    color: var(--ds-muted);
    font-size: var(--size-xs);
}

.result-hud {
    margin-bottom: 18px;
}

.result-container {
    display: grid;
    gap: 18px;
}

.result-classification,
.result-narrative {
    padding: clamp(20px, 4vw, 38px);
}

.result-classification h2 {
    margin: 14px 0;
    color: var(--ds-phosphor);
    font-size: var(--size-xl);
}

.classification-rule {
    height: 2px;
    margin-bottom: 18px;
    background: var(--ds-signal);
}

.result-text {
    max-width: 80ch;
    color: var(--ds-ink);
    font-size: var(--size-lg);
    font-weight: 700;
}

.result-category {
    margin-bottom: 16px;
    color: var(--ds-phosphor);
    font-family: var(--font-pixel);
    font-size: var(--size-xl);
    line-height: 1.2;
    text-transform: uppercase;
}

.result-narrative h3 {
    margin-bottom: 16px;
    color: var(--ds-signal);
    font-size: var(--size-sm);
}

.result-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.result-actions button {
    flex: 1 1 220px;
    text-align: var(--align-center);
}

.results-dashboard {
    position: relative;
    overflow: hidden;
    border-color: var(--ds-amber);
    background: var(--ds-black);
}

.results-dashboard::before {
    position: absolute;
    inset: 0 auto auto 0;
    z-index: 1;
    width: 140px;
    height: 3px;
    content: '';
    background: var(--ds-amber);
}

.collider-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 28px;
    padding: clamp(20px, 3vw, 34px);
    border-bottom: 1px solid var(--ds-amber);
    background:
        linear-gradient(100deg, rgba(224, 163, 75, 0.09), transparent 58%),
        var(--ds-panel-dark);
}

.collider-header h3 {
    margin-top: 8px;
    color: var(--ds-amber);
    font-family: var(--font-pixel);
    font-size: var(--size-xl);
    line-height: 1.2;
    text-transform: uppercase;
}

.collider-header p {
    max-width: 72ch;
    margin-top: 10px;
    color: var(--ds-muted);
    font-size: var(--size-sm);
}

.winner-summary {
    flex: 0 0 min(320px, 32vw);
    padding-left: 20px;
    border-left: 1px solid var(--ds-amber);
    text-align: right;
}

.winner-label,
.winner-genre,
.winner-score {
    display: block;
}

.winner-label,
.collider-kicker,
.collider-metric-label,
.chart-kicker {
    font-family: var(--font-pixel);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.winner-label {
    color: var(--ds-muted);
    font-size: var(--size-2xs);
}

.winner-genre {
    margin: 8px 0 5px;
    color: var(--ds-phosphor);
    font-family: var(--font-pixel);
    font-size: clamp(1rem, 2vw, 1.55rem);
    line-height: 1.2;
    text-transform: uppercase;
}

.winner-score {
    color: var(--ds-amber);
    font-size: var(--size-sm);
}

.collider-kicker,
.chart-kicker {
    color: var(--ds-amber);
    font-size: var(--size-2xs);
}

.collider-metric-strip {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 1px;
    border-bottom: 1px solid var(--ds-amber);
    background: var(--ds-amber);
}

.collider-metric {
    min-width: 0;
    padding: 16px clamp(12px, 2vw, 24px);
    background: var(--ds-screen);
}

.collider-metric-label,
.collider-metric-value {
    display: block;
}

.collider-metric-label {
    overflow: hidden;
    color: var(--ds-muted);
    font-size: var(--size-2xs);
    text-overflow: ellipsis;
    white-space: nowrap;
}

.collider-metric-value {
    margin-top: 6px;
    color: var(--ds-ink);
    font-size: var(--size-lg);
}

.collider-metric-value.hot {
    color: var(--ds-amber);
}

.collider-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.22fr) minmax(340px, 0.78fr);
    gap: 1px;
    background: var(--ds-amber);
}

.collider-panel {
    min-width: 0;
    padding: clamp(18px, 2.6vw, 30px);
    background: var(--ds-screen);
}

.collider-panel h4 {
    margin-top: 7px;
    color: var(--ds-ink);
    font-family: var(--font-pixel);
    font-size: var(--size-md);
    font-weight: 400;
    text-transform: uppercase;
}

.chart-note {
    margin-top: 7px;
    color: var(--ds-muted);
    font-size: var(--size-xs);
}

.collision-frame {
    position: relative;
    min-height: 420px;
    margin-top: 20px;
    border: 1px solid var(--ds-line);
    background:
        linear-gradient(rgba(224, 163, 75, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(224, 163, 75, 0.08) 1px, transparent 1px),
        var(--ds-black);
    background-size: 40px 40px;
}

.collision-frame svg,
.regression-frame svg {
    display: block;
    width: 100%;
    height: 100%;
}

.collider-legend {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 9px 16px;
    margin-top: 16px;
}

.collider-legend-item {
    display: flex;
    align-items: center;
    gap: 7px;
    min-width: 0;
    color: var(--ds-muted);
    font-size: var(--size-2xs);
}

.collider-legend-dot {
    flex: 0 0 7px;
    width: 7px;
    height: 7px;
    background: var(--ds-signal);
    box-shadow: 0 0 8px var(--ds-glow);
}

.collider-legend-item.winner,
.posterior-row[data-winner="true"] .posterior-name,
.posterior-row[data-winner="true"] .posterior-value {
    color: var(--ds-phosphor);
}

.collider-legend-item.winner .collider-legend-dot {
    background: var(--ds-phosphor);
}

.posterior-list {
    display: grid;
    gap: 10px;
    margin-top: 20px;
}

.posterior-row {
    display: grid;
    grid-template-columns: minmax(110px, 0.9fr) minmax(110px, 1.5fr) 58px;
    gap: 10px;
    align-items: center;
    min-height: 24px;
}

.posterior-name {
    overflow: hidden;
    color: var(--ds-muted);
    font-size: var(--size-xs);
    text-overflow: ellipsis;
    white-space: nowrap;
}

.posterior-track {
    position: relative;
    height: 13px;
    border-right: 1px solid var(--ds-line);
    border-left: 1px solid var(--ds-line);
    background:
        linear-gradient(90deg, transparent 24%, var(--ds-line-dim) 25%, transparent 26%, transparent 49%, var(--ds-line-dim) 50%, transparent 51%, transparent 74%, var(--ds-line-dim) 75%, transparent 76%),
        var(--ds-black);
}

.posterior-whisker {
    position: absolute;
    top: 5px;
    height: 2px;
    background: var(--ds-line);
}

.posterior-dot {
    position: absolute;
    top: 2px;
    width: 9px;
    height: 9px;
    border: 1px solid var(--ds-screen);
    background: var(--ds-signal);
    box-shadow: 0 0 7px var(--ds-glow);
    transform: translateX(-50%) rotate(45deg);
}

.posterior-value {
    color: var(--ds-ink);
    font-size: var(--size-xs);
    text-align: right;
}

.posterior-row[data-winner="true"] .posterior-whisker,
.posterior-row[data-winner="true"] .posterior-dot {
    background: var(--ds-phosphor);
    box-shadow: 0 0 9px rgba(213, 220, 115, 0.5);
}

.regression-frame {
    height: 250px;
    margin-top: 20px;
    border: 1px solid var(--ds-line);
    background:
        linear-gradient(var(--ds-grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--ds-grid) 1px, transparent 1px),
        var(--ds-black);
    background-size: 40px 40px;
}

.coefficient-scroll {
    max-width: 100%;
    overflow-x: auto;
}

.coefficient-table {
    width: 100%;
    min-width: 420px;
    margin-top: 20px;
    border-collapse: collapse;
    table-layout: fixed;
    font-size: var(--size-xs);
}

.coefficient-table th,
.coefficient-table td {
    padding: 11px 8px;
    border-bottom: 1px solid var(--ds-line-dim);
    text-align: right;
}

.coefficient-table th:first-child,
.coefficient-table td:first-child {
    width: 42%;
    color: var(--ds-muted);
    text-align: left;
}

.coefficient-table th {
    color: var(--ds-muted);
    font-family: var(--font-pixel);
    font-size: var(--size-2xs);
    font-weight: 400;
    text-transform: uppercase;
}

.coefficient-table tr:first-child td {
    color: var(--ds-phosphor);
}

.dashboard-footer {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px 24px;
    padding: 16px clamp(18px, 2.6vw, 30px);
    border-top: 1px solid var(--ds-amber);
    color: var(--ds-muted);
    background: var(--ds-panel-dark);
    font-size: var(--size-2xs);
    text-transform: uppercase;
}

.dashboard-footer button {
    min-height: 42px;
    padding: 8px 12px;
    border-width: 1px;
    font-family: var(--font-pixel);
    font-size: var(--size-2xs);
}

@media (max-width: 1100px) {
    .landing-grid {
        grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
    }

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

    .collider-legend {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .quiz-primary {
        grid-template-columns: 1fr;
        grid-template-areas:
            'telemetry'
            'predictor'
            'question'
            'scene'
            'story';
    }
}

@media (max-width: 768px) {
    body {
        padding: 0;
    }

    .container {
        min-height: 100vh;
        border-right: 0;
        border-left: 0;
        box-shadow: none;
    }

    .terminal-chrome {
        align-items: flex-start;
        flex-direction: column;
        gap: 6px;
    }

    .terminal-status {
        justify-content: flex-start;
    }

    .screen {
        min-height: auto;
        padding: 20px 14px 28px;
    }

    .landing-grid {
        display: flex;
        min-height: auto;
        flex-direction: column;
        align-items: stretch;
        gap: 28px;
    }

    .landing-copy {
        display: contents;
    }

    .boot-log {
        order: 1;
        margin-bottom: 0;
    }

    h1 {
        order: 2;
        margin-bottom: 0;
    }

    .intro-copy {
        order: 3;
        margin-bottom: 0;
    }

    #startButton {
        order: 4;
    }

    .landing-signal {
        order: 5;
        align-self: stretch;
    }

    .quiz-primary {
        display: flex;
        flex-direction: column;
    }

    .hud-container {
        grid-template-columns: 1fr;
    }

    .quiz-telemetry {
        order: 1;
    }

    .genre-predictor {
        order: 2;
    }

    .question-panel {
        order: 3;
    }

    .signal-scene {
        order: 4;
    }

    .story-box {
        order: 5;
    }

    .question-text {
        min-height: auto;
    }

    .collider-header,
    .dashboard-footer {
        align-items: flex-start;
        flex-direction: column;
    }

    .winner-summary {
        width: 100%;
        flex-basis: auto;
        padding: 16px 0 0;
        border-top: 1px solid var(--ds-amber);
        border-left: 0;
        text-align: left;
    }

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

    .collider-metric:last-child {
        grid-column: 1 / -1;
    }

    .collision-frame {
        min-height: 330px;
    }

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

    .posterior-row {
        grid-template-columns: minmax(96px, 0.95fr) minmax(90px, 1.2fr) 54px;
        gap: 7px;
    }

    .dashboard-footer button {
        width: 100%;
    }
}

@media (max-width: 430px) {
    .terminal-subsystem {
        display: block;
        margin: 3px 0 0;
    }

    .terminal-status {
        gap: 4px 12px;
    }

    .landing-signal .signal-image-wrap {
        max-height: 250px;
    }

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

    .signal-frame-header {
        align-items: flex-start;
        flex-direction: column;
        gap: 2px;
    }

    .genre-bar-row {
        grid-template-columns: minmax(84px, 0.9fr) minmax(62px, 1.1fr) 6ch;
        gap: 6px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}