:root {
  --sd-ink: #eef7ff;
  --sd-muted: #9caec1;
  --sd-night: #071019;
  --sd-panel: #0c1722;
  --sd-panel-2: #111f2c;
  --sd-line: rgba(180, 213, 235, .18);
  --sd-cyan: #7be8e2;
  --sd-yellow: #ffd36a;
  --sd-red: #ff6d7d;
}

.starlight { min-height: 100vh; color: var(--sd-ink); background: radial-gradient(circle at 12% 5%, rgba(39, 99, 121, .35), transparent 34rem), radial-gradient(circle at 90% 70%, rgba(100, 44, 88, .2), transparent 34rem), var(--sd-night); font-family: Inter, ui-sans-serif, system-ui, sans-serif; overflow: hidden; }
.starlight * { box-sizing: border-box; }
.starlight button, .starlight input { font: inherit; }
.starlight-nav { min-height: 4.5rem; padding: 1rem clamp(1rem, 4vw, 3.5rem); border-bottom: 1px solid var(--sd-line); display: flex; align-items: center; justify-content: space-between; gap: 1rem; background: rgba(5, 13, 21, .82); backdrop-filter: blur(14px); }
.starlight-back { color: var(--sd-ink); text-decoration: none; font-size: .78rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.starlight-nav-actions { display: flex; gap: .5rem; flex-wrap: wrap; justify-content: flex-end; }
.starlight-quiet { border: 1px solid var(--sd-line); color: var(--sd-muted); background: transparent; border-radius: 999px; padding: .5rem .8rem; cursor: pointer; }
.starlight-quiet:hover, .starlight-quiet:focus-visible { color: var(--sd-cyan); border-color: var(--sd-cyan); }
.starlight-intro, .starlight-finish { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; padding: clamp(3rem, 7vw, 7rem) 0 4rem; }
.starlight-intro-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(18rem, .85fr); gap: clamp(2rem, 7vw, 7rem); align-items: center; }
.starlight-kicker { color: var(--sd-cyan); text-transform: uppercase; letter-spacing: .18em; font-size: .7rem; font-weight: 900; margin: 0 0 1rem; }
.starlight h1 { font-family: Georgia, 'Times New Roman', serif; font-weight: 400; font-size: clamp(4rem, 9vw, 8.5rem); line-height: .78; letter-spacing: -.07em; margin: 0 0 2rem; }
.starlight h1 span { color: transparent; -webkit-text-stroke: 1px var(--sd-cyan); font-style: italic; }
.starlight-lead { max-width: 43rem; color: #c9d7e4; font-size: clamp(1rem, 1.8vw, 1.3rem); line-height: 1.75; }
.starlight-identity { max-width: 32rem; margin: 2rem 0 1rem; }
.starlight-identity label { display: block; color: var(--sd-yellow); font-size: .72rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; margin-bottom: .5rem; }
.starlight-identity input { width: 100%; color: white; background: rgba(255,255,255,.05); border: 1px solid var(--sd-line); border-radius: .35rem; padding: .9rem 1rem; outline: none; }
.starlight-identity input:focus { border-color: var(--sd-cyan); box-shadow: 0 0 0 3px rgba(123,232,226,.12); }
.starlight-identity small, .starlight-small-note { display: block; color: var(--sd-muted); line-height: 1.5; margin-top: .55rem; }
#starlight-start-error { color: #ff9aa6; margin: .6rem 0 0; }
.starlight-primary, .starlight-secondary { min-height: 3.1rem; border-radius: .25rem; display: inline-flex; align-items: center; justify-content: center; gap: 1rem; padding: .8rem 1.2rem; font-weight: 900; letter-spacing: .04em; text-decoration: none; cursor: pointer; }
.starlight-primary { border: 0; color: #061014; background: var(--sd-cyan); box-shadow: .35rem .35rem 0 rgba(255,211,106,.85); }
.starlight-primary:hover, .starlight-primary:focus-visible { transform: translate(-2px,-2px); box-shadow: .5rem .5rem 0 rgba(255,211,106,.9); }
.starlight-primary:disabled { cursor: wait; opacity: .65; transform: none; }
.starlight-secondary { color: var(--sd-ink); border: 1px solid var(--sd-line); background: transparent; }
.starlight-case-board { position: relative; padding: 2rem; border: 1px solid var(--sd-line); background: linear-gradient(145deg, rgba(17,31,44,.96), rgba(5,13,21,.92)); box-shadow: 1.2rem 1.2rem 0 rgba(123,232,226,.05); transform: rotate(1deg); }
.starlight-case-board::before { content: 'CLASSIFIED // LIGHT ANALYSIS'; position: absolute; right: -1px; top: -2rem; color: var(--sd-red); font-size: .66rem; font-weight: 900; letter-spacing: .18em; }
.starlight-star-scan { height: 15rem; display: grid; place-items: center; background: radial-gradient(circle, rgba(154,226,255,.13), transparent 55%), repeating-linear-gradient(0deg, transparent 0 23px, rgba(123,232,226,.06) 24px), repeating-linear-gradient(90deg, transparent 0 23px, rgba(123,232,226,.06) 24px); position: relative; overflow: hidden; }
.starlight-star-scan span { width: 5rem; aspect-ratio: 1; border-radius: 50%; background: white; box-shadow: 0 0 1rem white, 0 0 4rem #8bdcff, 0 0 8rem rgba(123,232,226,.7); }
.starlight-star-scan i { position: absolute; width: 80%; height: 1px; background: var(--sd-red); box-shadow: 0 0 1rem var(--sd-red); animation: sd-scan 4s ease-in-out infinite; }
@keyframes sd-scan { 0%,100% { transform: translateY(-6rem); opacity: .4; } 50% { transform: translateY(6rem); opacity: 1; } }
.starlight-spectrum-strip { height: 1.2rem; margin: 1rem 0 1.5rem; background: linear-gradient(90deg,#382a9e,#375edd,#26a8e4,#4adf9c,#f0e85b,#ff9d38,#e94454); position: relative; }
.starlight-spectrum-strip::after { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient(90deg,transparent 0 12%,rgba(0,0,0,.85) 12.3% 13%,transparent 13.3% 19%); }
.starlight-case-board > p { color: var(--sd-red); font-size: .65rem; letter-spacing: .18em; margin-bottom: .4rem; }
.starlight-case-board > strong { font-family: ui-monospace, monospace; font-size: 1.3rem; }
.starlight-case-board dl { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; margin: 1.5rem 0; background: var(--sd-line); }
.starlight-case-board dl div { background: var(--sd-panel); padding: .8rem; }
.starlight-case-board dt { color: var(--sd-muted); font-size: .62rem; text-transform: uppercase; letter-spacing: .1em; }
.starlight-case-board dd { margin: .3rem 0 0; font-size: .8rem; font-weight: 800; }
.starlight-case-board > b { display: block; color: var(--sd-yellow); border-top: 1px dashed var(--sd-line); padding-top: 1rem; font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; }
.starlight-case-list { list-style: none; padding: 0; margin: clamp(3rem, 7vw, 6rem) 0 0; display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--sd-line); }
.starlight-case-list li { padding: 1.1rem .7rem; border-right: 1px solid var(--sd-line); display: grid; gap: .25rem; }
.starlight-case-list span { color: var(--sd-red); font: 700 .7rem ui-monospace, monospace; }
.starlight-case-list strong { font-family: Georgia,serif; font-size: 1.1rem; }
.starlight-case-list small { color: var(--sd-muted); }
.starlight-play { padding-bottom: 2rem; }
.starlight-hud { display: grid; grid-template-columns: auto minmax(8rem,1fr) auto auto; gap: clamp(.8rem, 3vw, 2.5rem); align-items: center; padding: .9rem clamp(1rem, 4vw, 3.5rem); border-bottom: 1px solid var(--sd-line); }
.starlight-hud > div:not(.starlight-progress-track) { display: grid; gap: .15rem; }
.starlight-hud span { color: var(--sd-muted); font-size: .58rem; letter-spacing: .13em; text-transform: uppercase; }
.starlight-hud strong { font: 800 .78rem ui-monospace, monospace; }
.starlight-progress-track { height: 2px; background: var(--sd-line); }
.starlight-progress-track span { display: block; width: 0; height: 100%; background: var(--sd-cyan); box-shadow: 0 0 10px var(--sd-cyan); transition: width .4s ease; }
.starlight-workbench { display: grid; grid-template-columns: minmax(0,1.55fr) minmax(19rem,.65fr); width: min(1480px,100%); margin: 0 auto; }
.starlight-visual-panel { position: relative; border-right: 1px solid var(--sd-line); background: #040a0f; }
.starlight-visual-heading { height: 3rem; padding: 0 1rem; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--sd-line); font: 700 .66rem ui-monospace,monospace; letter-spacing: .1em; }
.starlight-visual-heading span { color: var(--sd-red); }
#starlight-canvas { display: block; width: 100%; height: auto; max-height: calc(100vh - 12rem); min-height: 24rem; object-fit: contain; }
.starlight-mission-panel { padding: clamp(1.5rem,4vw,3.5rem); background: linear-gradient(180deg,var(--sd-panel),#08111a); }
.starlight-mission-panel h2, .starlight-check h2, .starlight-finish h2, .starlight-notes h2 { font-family: Georgia,serif; font-weight: 400; font-size: clamp(2rem,4vw,3.6rem); line-height: 1; margin: 0 0 1.2rem; }
.starlight-mission-panel > p:not(.starlight-kicker) { color: #c5d3df; line-height: 1.7; }
.starlight-evidence { border-left: 2px solid var(--sd-yellow); padding: .2rem 0 .2rem 1rem; margin: 1.7rem 0; }
.starlight-evidence span { color: var(--sd-yellow); font-size: .6rem; text-transform: uppercase; letter-spacing: .14em; font-weight: 900; }
.starlight-evidence p { margin: .5rem 0 0; color: var(--sd-muted); line-height: 1.5; font-size: .9rem; }
.starlight-controls { display: grid; gap: .8rem; margin-top: 2rem; }
.starlight-control { color: var(--sd-ink); background: rgba(255,255,255,.04); border: 1px solid var(--sd-line); border-radius: .3rem; min-height: 2.8rem; padding: .65rem .8rem; cursor: pointer; text-align: left; }
.starlight-control:hover, .starlight-control:focus-visible, .starlight-control.is-selected { border-color: var(--sd-cyan); background: rgba(123,232,226,.1); }
.starlight-control.primary { color: #061014; background: var(--sd-cyan); border-color: var(--sd-cyan); font-weight: 900; text-align: center; }
.starlight-slider { display: grid; gap: .55rem; color: var(--sd-muted); font: 700 .72rem ui-monospace,monospace; }
.starlight-slider input { width: 100%; accent-color: var(--sd-cyan); }
.starlight-slider-wrap { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: .65rem; align-items: end; }
.starlight-nudges { display: grid; grid-template-columns: repeat(2,2.8rem); gap: .35rem; }
.starlight-nudges .starlight-control { min-height: 2.25rem; text-align: center; font-size: 1.1rem; padding: .25rem; }
.starlight-readout { border: 1px dashed var(--sd-line); color: var(--sd-yellow); padding: .75rem; font: 700 .75rem ui-monospace,monospace; line-height: 1.5; }
.starlight-toast { position: absolute; left: 50%; bottom: 1rem; transform: translateX(-50%); width: min(34rem,calc(100% - 2rem)); color: #ffe4e7; background: rgba(58,14,24,.94); border: 1px solid var(--sd-red); padding: .75rem 1rem; text-align: center; font-weight: 800; }
.starlight-toast.is-good { color: #d8fffc; background: rgba(8,49,49,.94); border-color: var(--sd-cyan); }
.starlight-check { min-height: calc(100vh - 4.5rem); display: grid; place-items: center; padding: 3rem 1rem; }
.starlight-check-card { width: min(760px,100%); position: relative; border: 1px solid var(--sd-line); padding: clamp(1.5rem,5vw,4rem); background: linear-gradient(145deg,var(--sd-panel-2),#081019); overflow: hidden; }
.starlight-check-number { position: absolute; right: -1rem; top: -3.5rem; color: rgba(123,232,226,.055); font: 900 15rem ui-monospace,monospace; }
#starlight-check-question { color: #d7e1eb; line-height: 1.65; font-size: 1.08rem; position: relative; }
.starlight-check-options { display: grid; gap: .65rem; margin: 1.5rem 0; position: relative; }
.starlight-option { color: var(--sd-ink); background: rgba(255,255,255,.03); border: 1px solid var(--sd-line); padding: .9rem 1rem; text-align: left; cursor: pointer; }
.starlight-option:hover, .starlight-option:focus-visible { border-color: var(--sd-yellow); }
.starlight-option:disabled { cursor: default; opacity: .72; }
.starlight-option.is-correct { border-color: var(--sd-cyan); background: rgba(123,232,226,.1); }
.starlight-option.is-wrong { border-color: var(--sd-red); background: rgba(255,109,125,.08); }
.starlight-check-feedback { display: grid; gap: .35rem; border-left: 3px solid var(--sd-cyan); padding: .6rem 1rem; margin: 1rem 0 1.5rem; color: #c9d7e4; }
.starlight-check-feedback.is-wrong { border-color: var(--sd-red); }
.starlight-check-feedback strong { color: white; }
.starlight-finish { text-align: center; }
.starlight-proof { display: grid; grid-template-columns: auto minmax(16rem,26rem); gap: 2rem; align-items: center; justify-content: center; margin-bottom: 3rem; }
.starlight-badge { width: 14rem; aspect-ratio: 1; border-radius: 50%; border: 2px solid var(--sd-cyan); box-shadow: inset 0 0 0 .6rem var(--sd-night), inset 0 0 0 .7rem var(--sd-yellow), 0 0 4rem rgba(123,232,226,.18); display: grid; place-items: center; align-content: center; background: radial-gradient(circle,rgba(123,232,226,.16),transparent 65%); }
.starlight-badge span { color: var(--sd-yellow); font-size: 2rem; line-height: 1; }
.starlight-badge strong { font-family: Georgia,serif; font-size: 4rem; line-height: 1; }
.starlight-badge small { margin-top: .4rem; color: var(--sd-cyan); font: 800 .66rem ui-monospace,monospace; }
.starlight-badge.is-locked { filter: grayscale(1); opacity: .45; }
.starlight-proof dl { display: grid; gap: 1px; background: var(--sd-line); text-align: left; }
.starlight-proof dl div { background: var(--sd-panel); padding: .8rem 1rem; }
.starlight-proof dt { color: var(--sd-muted); font-size: .62rem; text-transform: uppercase; letter-spacing: .12em; }
.starlight-proof dd { margin: .25rem 0 0; font: 800 .9rem ui-monospace,monospace; overflow-wrap: anywhere; }
.starlight-finish > p:not(.starlight-kicker):not(.starlight-small-note) { width: min(43rem,100%); margin: 0 auto 1.5rem; color: #c7d4df; line-height: 1.7; }
.starlight-final-score { margin: 1.5rem auto; display: grid; }
.starlight-final-score span { color: var(--sd-yellow); font: 400 5rem Georgia,serif; }
.starlight-final-score small { color: var(--sd-muted); text-transform: uppercase; letter-spacing: .12em; }
.starlight-finish-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.starlight-notes { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: 1rem; background: rgba(2,7,12,.88); backdrop-filter: blur(10px); }
.starlight-notes-card { width: min(760px,100%); max-height: calc(100vh - 2rem); overflow: auto; position: relative; background: var(--sd-panel); border: 1px solid var(--sd-line); padding: clamp(1.5rem,5vw,4rem); }
.starlight-notes-close { position: absolute; right: 1rem; top: 1rem; color: white; background: transparent; border: 1px solid var(--sd-line); border-radius: 50%; width: 2.2rem; aspect-ratio: 1; cursor: pointer; }
.starlight-notes li { color: #c5d2dd; line-height: 1.6; margin-bottom: .75rem; }
.starlight-source-links { display: grid; gap: .5rem; border-top: 1px solid var(--sd-line); padding-top: 1.2rem; }
.starlight-source-links a { color: var(--sd-cyan); }
[hidden] { display: none !important; }

@media (max-width: 900px) {
  .starlight-intro-grid, .starlight-workbench { grid-template-columns: 1fr; }
  .starlight-case-board { width: min(34rem,100%); margin: 1rem auto 0; }
  .starlight-visual-panel { border-right: 0; border-bottom: 1px solid var(--sd-line); }
  #starlight-canvas { min-height: 0; }
}
@media (max-width: 640px) {
  .starlight-nav { align-items: flex-start; }
  .starlight-nav-actions { max-width: 13rem; }
  .starlight-quiet { font-size: .7rem; padding: .4rem .6rem; }
  .starlight-case-list { grid-template-columns: 1fr; }
  .starlight-case-list li { grid-template-columns: 2rem 1fr; border-right: 0; border-bottom: 1px solid var(--sd-line); }
  .starlight-case-list small { grid-column: 2; }
  .starlight-hud { grid-template-columns: auto 1fr auto; }
  .starlight-hud > div:last-child { display: none; }
  .starlight-proof { grid-template-columns: 1fr; justify-items: center; }
  .starlight-proof dl { width: 100%; }
  .starlight-case-board dl { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .starlight *, .starlight *::before, .starlight *::after { animation-duration: .01ms !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
}