:root {
  color-scheme: dark;
  --bg: #101918;
  --surface: #182422;
  --raised: #22312e;
  --border: #3b514b;
  --text: #edf3ed;
  --muted: #b3c5bc;
  --accent: #addbc3;
  --focus: #f7c58f;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  font-synthesis: none;
}
* { box-sizing: border-box; }
body { margin: 0; }
header, main, footer { max-width: 1160px; margin: auto; }
header { padding: 30px 28px; display: flex; justify-content: space-between; align-items: center; gap: 20px; border-bottom: 1px solid var(--border); }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: #d4f6e4; }
.brand { font-size: 25px; font-weight: 800; text-decoration: none; color: var(--text); letter-spacing: -1px; }
.badge { font-size: 12px; border: 1px solid var(--border); border-radius: 30px; padding: 12px 14px; text-decoration: none; }
main { padding: 0 28px; }
button { font: inherit; cursor: pointer; border: 0; border-radius: 12px; padding: 13px 20px; font-weight: 650; min-height: 48px; transition: transform .15s, background .15s; }
button:hover:not(:disabled) { transform: translateY(-2px); }
button:disabled { opacity: .48; cursor: default; }
button:focus-visible, a:focus-visible, input:focus-visible, summary:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }
.primary { background: var(--accent); color: #102c23; }
.primary:hover:not(:disabled) { background: #c3ebd7; }
.primary span { margin-left: 30px; }
small { display: block; margin-top: 14px; color: var(--muted); }
.hero { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; padding: 64px 0 40px; align-items: center; }
.eyebrow { font-size: 11px; font-weight: 750; letter-spacing: 2px; color: var(--accent); }
h1 { font-size: clamp(32px, 4.5vw, 52px); line-height: 1.1; letter-spacing: -1.8px; margin: 16px 0 18px; font-weight: 650; }
h2 { font-size: 27px; letter-spacing: -.8px; margin: 8px 0 18px; }
h3 { font-size: 26px; margin: 12px 0; }
p { line-height: 1.65; }
.hero p:not(.eyebrow) { max-width: 470px; color: var(--muted); font-size: 16px; }
.hero .primary { margin-top: 12px; }
.art { height: 330px; border-radius: 150px 150px 35px 35px; background: #1d3029; position: relative; overflow: hidden; background-image: repeating-radial-gradient(ellipse at 50% 90%, transparent 0, transparent 28px, #405c48 29px, transparent 30px); }
.orb { position: absolute; border-radius: 50%; display: grid; place-items: center; font-size: 56px; color: #172d27; box-shadow: 0 15px 30px #0003; }
.one { background: #9ac8ae; width: 140px; height: 140px; left: 12%; top: 40px; transform: rotate(-12deg); }
.two { background: #d8ab85; width: 110px; height: 110px; right: 12%; top: 98px; transform: rotate(15deg); }
.three { background: #b6a7d0; width: 85px; height: 85px; left: 34%; bottom: 42px; }
.art p { position: absolute; bottom: 0; width: 100%; text-align: center; font-size: 12px !important; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); padding: 24px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.stats div { text-align: center; border-right: 1px solid var(--border); }
.stats div:last-child { border: 0; }
.stats strong { display: block; font-size: 27px; }
.stats span { font-size: 12px; color: var(--muted); }
.sectionhead { display: flex; justify-content: space-between; align-items: end; gap: 16px; margin: 44px 0 8px; }
.sectionhead > span { font-size: 12px; margin-bottom: 20px; color: var(--muted); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: start; }
.card { padding: 26px; border: 1px solid var(--border); border-radius: 22px; display: flex; flex-direction: column; align-items: start; min-width: 0; }
.mint { background: #20362e; border-color: #3d6050; }
.peach { background: #392e25; border-color: #62503f; }
.lilac { background: #2e2a3d; border-color: #524965; }
.mint .icon { color: #b9e1c7; }
.peach .icon, .peach .eyebrow { color: #e6bc98; }
.lilac .icon, .lilac .eyebrow { color: #cfbfe7; }
.icon { font-size: 30px; letter-spacing: 4px; padding: 12px 0 28px; }
.card p:not(.eyebrow) { font-size: 14px; margin-top: 0; color: var(--muted); }
.card button { margin-top: auto; background: #10191899; border: 1px solid #ffffff24; color: var(--text); width: 100%; text-align: left; }
.bottom { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin: 32px 0; }
.panel { border: 1px solid var(--border); border-radius: 20px; padding: 26px; background: var(--surface); min-width: 0; }
.quiet { background: var(--raised); color: var(--text); border: 1px solid var(--border); font-size: 13px; }
label { display: flex; justify-content: space-between; font-size: 14px; }
input[type=range] { width: 100%; margin: 20px 0; accent-color: var(--accent); min-height: 30px; }
.hint { font-size: 12px; color: var(--muted); }
.notice { padding: 22px; background: var(--surface); border: 1px solid var(--border); border-radius: 15px; font-size: 12px; line-height: 1.8; color: var(--muted); }
.notice strong { display: block; color: var(--text); }
footer { padding: 30px 28px; font-size: 13px; font-weight: 700; display: flex; justify-content: space-between; }
footer span { font-weight: 400; color: var(--muted); }
ul { padding-left: 18px; font-size: 13px; line-height: 1.8; }
.arena { margin: 36px 0; padding: 32px; border: 1px solid var(--border); border-radius: 24px; background: var(--surface); text-align: center; position: relative; overflow: hidden; }
.audio-result-overlay { position: absolute; left: 50%; top: 48%; z-index: 30; pointer-events: none; width: max-content; max-width: calc(100% - 32px); padding: 14px 24px; border: 3px solid var(--focus); border-radius: 999px; box-shadow: 0 10px 30px #0008; font-size: clamp(18px, 3vw, 22px); font-weight: 850; white-space: nowrap; opacity: 0; transform: translate(-50%, -50%) scale(.7); }
.audio-result-overlay.is-correct { color: #102c23; background: var(--accent); }
.audio-result-overlay.is-wrong { color: #fff4e9; background: #7b493e; border-color: #eec397; }
.audio-result-overlay.show { animation: audio-result-pop 1.25s ease-out both; }
@keyframes audio-result-pop { 0% { opacity: 0; transform: translate(-50%, -50%) scale(.7); } 16% { opacity: 1; transform: translate(-50%, -50%) scale(1.08); } 32%, 78% { opacity: 1; transform: translate(-50%, -50%) scale(1); } 100% { opacity: 0; transform: translate(-50%, -50%) scale(.96); } }
.gamehead { display: flex; justify-content: space-between; text-align: left; gap: 16px; align-items: center; }
.roundline { display: flex; justify-content: space-between; font-size: 13px; margin-top: 20px; color: var(--muted); }
progress { width: 100%; height: 8px; accent-color: var(--accent); margin: 14px 0; border: 0; border-radius: 10px; overflow: hidden; background: var(--raised); }
progress::-webkit-progress-bar { background: var(--raised); }
progress::-webkit-progress-value { background: var(--accent); }
progress::-moz-progress-bar { background: var(--accent); }
.visual { font-size: 60px; height: 100px; display: grid; place-items: center; color: var(--accent); }
.answers { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: 22px 0; }
.answers button { background: #2d473c; color: var(--text); min-width: 110px; border: 1px solid #567363; }
.answers .island { height: 90px; min-width: 85px; border-bottom: 5px solid #709a84; }
.answers .active { background: #5b452e; }
.answers .selected { outline: 3px solid var(--focus); outline-offset: 2px; }
#feedback { min-height: 30px; font-weight: 600; }
.game-info { width: 100%; margin-top: 20px; border-top: 1px solid #ffffff30; text-align: left; }
summary { cursor: pointer; font-size: 14px; font-weight: 650; padding: 16px 2px; min-height: 48px; color: var(--accent); }
summary::marker { color: var(--accent); }
.info-content { font-size: 13px; line-height: 1.7; color: var(--muted); overflow-wrap: anywhere; }
.info-content dl { margin: 0 0 10px; }
.info-content dt { color: var(--text); font-weight: 700; margin-top: 15px; }
.info-content dd { margin: 5px 0 0; }
.knowledge { margin-top: 36px; padding: 30px; border: 1px solid var(--border); border-radius: 22px; background: var(--surface); scroll-margin-top: 20px; }
.knowledge > p:not(.eyebrow) { color: var(--muted); font-size: 14px; }
.knowledge strong { color: var(--text); }
.knowledge-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 26px 0; }
.knowledge-block { padding: 23px; border: 1px solid var(--border); background: #111d19; border-radius: 16px; min-width: 0; }
.label { color: var(--accent); font-size: 10px; font-weight: 750; letter-spacing: 1.4px; }
.knowledge h3 { font-size: 20px; line-height: 1.35; }
.knowledge-block p, .network-note p { color: var(--muted); font-size: 14px; }
.network-note { border-left: 3px solid #ad9bc4; padding: 2px 0 2px 20px; margin: 26px 0; }
.sources { border-top: 1px solid var(--border); }
.sources ol { padding-left: 22px; font-size: 13px; line-height: 1.8; color: var(--muted); overflow-wrap: anywhere; }
.sources li { padding: 6px 0; scroll-margin-top: 30px; }
.sources li:target { background: var(--raised); outline: 2px solid var(--accent); outline-offset: 4px; }
.welcome { padding: 40px 0 30px; grid-template-columns: 1.6fr 1fr; }
.welcome p:not(.eyebrow) { max-width: 550px; }
.welcome-drawing { text-align: center; color: var(--muted); font-size: 12px; }
.welcome-drawing svg { width: 100%; max-width: 320px; display: block; margin: auto auto 14px; }
.welcome-drawing path { fill: none; stroke: var(--accent); stroke-width: 3; stroke-linecap: round; }
.welcome-drawing circle { fill: var(--focus); }
.category-nav { display: flex; gap: 10px; border-bottom: 1px solid var(--border); padding-bottom: 16px; }
.category-nav button { background: var(--surface); color: var(--muted); border: 1px solid var(--border); }
.category-nav button[aria-pressed="true"] { background: var(--accent); color: #102c23; border-color: var(--accent); }
.category-hint { color: var(--muted); font-size: 14px; margin: 20px 0; }
.trace-preview { width: 100%; height: 95px; margin-bottom: 12px; }
.trace-preview svg { width: 100%; height: 100%; }
.trace-preview path { fill: none; stroke: var(--accent); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.trace-preview circle { fill: var(--focus); }
.peach .trace-preview path { stroke: #e6bc98; }
.lilac .trace-preview path { stroke: #cfbfe7; }
.free-card { max-width: 650px; }
.free-card .hint { margin-top: 18px !important; }
.session-route { color: var(--accent); font-size: 13px; margin: 24px 0 0; }
.is-playing .bottom, .is-playing .notice, .is-playing footer { display: none; }
.is-playing #wissen:not(.reference-open) { display: none; }
#library, .arena { scroll-margin-top: 12px; }
.knowledge > summary { font-size: 18px; padding: 2px 0; }
.knowledge[open] > summary { margin-bottom: 24px; }
.drawing-arena { max-width: 820px; margin-left: auto; margin-right: auto; position: relative; overflow: hidden; }
.drawing-meta { display: flex; justify-content: space-between; gap: 12px; align-items: center; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
#width-setting { gap: 10px; align-items: center; }
select { font: inherit; padding: 10px; min-height: 44px; border: 1px solid var(--border); border-radius: 8px; background: var(--raised); color: var(--text); }
select:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
#drawing-step { font-size: 17px; margin: 16px 0; }
.drawing-surface { border: 1px solid #52705f; border-radius: 16px; overflow: hidden; background: #111f1a; }
#drawing-board { display: block; width: 100%; aspect-ratio: 600 / 440; touch-action: none; user-select: none; -webkit-user-select: none; cursor: crosshair; }
#drawing-ink, #drawing-cursor, #drawing-guide, #drawing-track { pointer-events: none; }
.drawing-tools { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; justify-content: center; margin: 18px 0; }
.ink-colors { display: flex; gap: 6px; }
.ink-colors button { display: grid; place-items: center; padding: 10px; width: 48px; height: 48px; border: 2px solid transparent; background: var(--raised); }
.ink-colors button[aria-pressed="true"] { border-color: var(--focus); }
.ink { width: 22px; height: 22px; border-radius: 50%; display: block; }
.mint-ink { background: #addbc3; }
.peach-ink { background: #eec397; }
.lilac-ink { background: #cbb4ef; }
#drawing-status { min-height: 48px; font-size: 14px; color: var(--text); }
.confetti { position: absolute; top: 125px; left: 0; right: 0; height: min(58vw, 470px); pointer-events: none; overflow: hidden; z-index: 20; }
.confetti::before { content: attr(data-message); position: absolute; left: 50%; top: 38%; transform: translate(-50%, -50%) scale(.7); color: #102c23; background: var(--accent); border: 3px solid #f7c58f; border-radius: 999px; padding: 14px 24px; font-size: 22px; font-weight: 800; opacity: 0; box-shadow: 0 10px 30px #0008; white-space: nowrap; }
.confetti.show::before { animation: success-pop 1.35s ease-out both; }
.confetti span { position: absolute; left: var(--x); top: 35%; opacity: 0; font-size: 24px; transform: translate(-50%, 0) scale(.4); }
.confetti.show span { animation: confetti-pop 1.35s ease-out var(--delay) both; }
@keyframes confetti-pop { 0% { opacity: 0; transform: translate(-50%, 0) scale(.3) rotate(0deg); } 15% { opacity: 1; } 100% { opacity: 0; transform: translate(calc(-50% + var(--drift)), 210px) scale(1.1) rotate(260deg); } }
@media (prefers-reduced-motion: reduce) { .confetti.show span { animation: confetti-fade 1s ease-out var(--delay) both; } }
@keyframes confetti-fade { 0%, 100% { opacity: 0; } 20% { opacity: 1; } 80% { opacity: 0; } }
@keyframes success-pop { 0% { opacity: 0; transform: translate(-50%, -50%) scale(.65); } 18% { opacity: 1; transform: translate(-50%, -50%) scale(1.08); } 34% { transform: translate(-50%, -50%) scale(1); } 78% { opacity: 1; } 100% { opacity: 0; transform: translate(-50%, -50%) scale(.96); } }
.drawing-arena #draw-next { margin-top: 10px; }
[hidden] { display: none !important; }
@media (max-width: 700px) {
  header { padding: 22px 20px; flex-wrap: wrap; gap: 12px; }
  .badge { font-size: 11px; }
  main { padding: 0 20px; }
  .hero { grid-template-columns: 1fr; padding-top: 24px; gap: 24px; }
  .welcome-drawing { display: none; }
  .welcome small { font-size: 12px; line-height: 1.6; }
  .category-nav { gap: 6px; }
  .category-nav button { flex: 1; padding: 10px 6px; font-size: 12px; }
  .drawing-meta { justify-content: center; }
  .drawing-tools { gap: 8px; }
  .drawing-tools > button { padding: 10px; font-size: 12px; }
  .drawing-arena { padding: 18px 10px; }
  .confetti { top: 120px; height: 300px; }
  .confetti::before { font-size: 18px; padding: 11px 18px; }
  .drawing-arena .gamehead h2 { font-size: 21px; }
  .drawing-arena .gamehead .eyebrow { font-size: 10px; }
  .drawing-arena #drawing-instruction { font-size: 14px; }
  .drawing-arena .roundline { font-size: 11px; gap: 8px; }
  .drawing-arena .gamehead button { flex-shrink: 0; }
  .session-route { font-size: 12px; }
  .art { height: 210px; }
  .one { width: 100px; height: 100px; left: 18%; top: 20px; }
  .two { width: 90px; height: 90px; top: 40px; right: 18%; }
  .three { width: 60px; height: 60px; font-size: 40px; bottom: 28px; left: 43%; }
  .cards, .bottom, .knowledge-grid { grid-template-columns: 1fr; }
  .sectionhead { display: block; }
  .sectionhead > span { display: block; }
  .card { padding: 24px; }
  .icon { padding-bottom: 12px; }
  .arena { padding: 20px 14px; }
  .gamehead { align-items: start; }
  .gamehead h2 { font-size: 24px; }
  .gamehead button { padding: 10px; font-size: 12px; }
  .stats span { font-size: 11px; }
  .answers { gap: 8px; }
  .answers .island { min-width: 60px; padding: 10px; flex: 1; }
  .stats strong { font-size: 23px; }
  .knowledge { padding: 24px 20px; }
  .knowledge-block { padding: 18px; }
  footer { gap: 20px; font-size: 11px; }
}
@media (prefers-reduced-motion: reduce) {
  button { transition: none; }
  .audio-result-overlay.show { animation: audio-result-fade 1.25s ease-out both; }
}
@keyframes audio-result-fade { 0%, 100% { opacity: 0; } 12%, 82% { opacity: 1; } }