.intro-links{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:20px}.intro-links .text-link{margin:0}.intro-links button{background:var(--app-accent);border-color:var(--app-accent);color:#291806}.story-open{overflow:hidden}.fractal-story{--story-fg:#eff4ef;--story-muted:#adbdc0;--story-line:#31434b;box-sizing:border-box;width:min(1340px,calc(100vw - 36px));max-width:none;max-height:calc(100dvh - 36px);height:min(890px,calc(100dvh - 36px));padding:0;border:1px solid var(--story-line);border-radius:22px;background:#0c141b;color:var(--story-fg);box-shadow:0 30px 150px #000b;overflow:auto;color-scheme:dark}.fractal-story::backdrop{background:#02070ee6;backdrop-filter:blur(12px)}.fractal-story:not([open]){display:none}.story-shell{min-height:100%;display:flex;flex-direction:column}.story-top{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:18px 25px;border-bottom:1px solid var(--story-line)}.story-brand{display:flex;align-items:center;gap:12px;font-size:13px;font-weight:600}.story-logo{display:grid;place-items:center;width:34px;height:34px;border:1px solid #ff8a1f66;border-radius:9px;color:#ffab62;font:24px var(--mono)}.story-brand small{display:block;color:var(--story-muted);font-size:11px;font-weight:400}.fractal-story button{color:var(--story-fg);background:#18252d;border-color:var(--story-line)}.fractal-story button:hover{background:#26363d;border-color:#ff8a1f}.fractal-story button.primary{background:#ff8a1f;border-color:#ff8a1f;color:#251506}.story-top>button{background:transparent;color:#c5d1d1;font-size:12px}.story-nav{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:5px;padding:18px 25px 0}.story-nav button{display:flex;align-items:center;gap:10px;text-align:left;border:0;border-radius:7px;background:none;padding:11px 10px;min-width:0}.story-nav button span{color:#799097;font:10px var(--mono)}.story-nav button b{font-size:12px;font-weight:500;white-space:nowrap}.story-nav button[aria-current=step]{background:#ff8a1f15;color:#ffb16f;box-shadow:inset 0 -2px #ff8a1f}.story-nav button[aria-current=step] span{color:#ffad62}.story-stage{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(300px,1fr);gap:0;flex:1;min-height:360px;margin:18px 25px 0;border:1px solid var(--story-line);border-radius:16px;overflow:hidden;background:#0b141b}.story-art{position:relative;min-width:0;min-height:330px;background:radial-gradient(ellipse at 48% 45%,#19303a50,transparent 65%)}.story-art canvas{display:block;width:100%;height:100%;min-height:330px;position:absolute;inset:0}.story-art:after{content:'';position:absolute;inset:0;border-radius:15px 0 0 15px;pointer-events:none;box-shadow:inset 0 0 60px #020a1030}.story-copy{display:flex;flex-direction:column;align-items:start;justify-content:center;gap:20px;padding:38px 30px;border-left:1px solid var(--story-line);background:linear-gradient(150deg,#1b292e,#101a21)}.story-count{font:10px var(--mono);letter-spacing:.12em;color:#829aa2}.story-copy .eyebrow{font-size:11px;color:#ffab62;margin:0}.story-copy h2{font-size:clamp(27px,2.7vw,43px);line-height:1.12;letter-spacing:-.04em;color:#f0f3ed}.story-copy>p:not(.eyebrow){font-size:16px;line-height:1.75;color:#bbccce}.story-takeaway{border-left:2px solid #ff8a1f;padding:12px 0 12px 16px;color:#e4ebe6;font-size:13px;line-height:1.7}.story-takeaway strong{display:block;font:9px var(--mono);letter-spacing:.12em;color:#ffb271;margin-bottom:7px}.story-copy #introStart{width:100%;margin-top:2px;font-size:15px}.story-controls{display:flex;align-items:center;gap:10px;padding:20px 25px 14px}.story-controls .story-transport{display:flex;gap:7px}.story-controls .story-transport button{min-width:85px}.story-scrub{display:flex;align-items:center;gap:12px;flex:1;min-width:0;padding-left:12px}.story-scrub input{width:100%;min-width:40px}.story-scrub output{font:10px var(--mono);color:#a8bdc1;min-width:87px;text-align:right}.story-controls #introRestart{font-size:12px;background:transparent}.story-bottom-note{padding:0 25px 18px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:11px;color:#89a2aa}.story-bottom-note p{margin:0}.story-bottom-note #introMotionNote{color:#ffb46f}.first-experiment-coach{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 24px;border-block:1px solid color-mix(in srgb,var(--app-accent) 45%,var(--line));background:var(--soft-orange)}.first-experiment-coach .eyebrow{margin-bottom:7px}.first-experiment-coach h3{font-size:20px;margin-bottom:8px}.first-experiment-coach p:not(.eyebrow){font-size:13px;color:var(--muted);max-width:650px;line-height:1.7}.first-experiment-coach .button-row{flex-shrink:0;max-width:330px}.first-experiment-coach button{font-size:12px}.first-experiment-coach #finishFirstGuide{background:transparent}
@media(max-width:1050px){.fractal-story{height:min(900px,calc(100dvh - 24px));max-height:calc(100dvh - 24px);width:calc(100vw - 24px)}.story-stage{grid-template-columns:minmax(0,1.2fr) minmax(280px,1fr)}.story-copy{padding:26px 22px;gap:15px}.story-copy>p:not(.eyebrow){font-size:14px}.story-copy h2{font-size:30px}.story-nav button{gap:6px;padding-inline:6px}.story-nav button b{font-size:11px}.story-controls{flex-wrap:wrap}.story-scrub{padding-left:0}.first-experiment-coach{flex-wrap:wrap}.first-experiment-coach .button-row{max-width:none}}
@media(max-width:740px){.fractal-story{height:100dvh;max-height:100dvh;width:100vw;max-width:100vw;border-radius:0;border:0}.story-top{padding:12px 15px}.story-brand{font-size:12px}.story-brand small{font-size:10px}.story-top>button{font-size:11px;padding-inline:10px}.story-nav{padding:10px 12px 0;gap:4px}.story-nav button{display:flex;flex-direction:column;gap:3px;min-height:47px;justify-content:center;padding:6px 2px}.story-nav button b{font-size:9px;white-space:normal;line-height:1.2;text-align:center}.story-nav button span{font-size:9px}.story-stage{display:flex;flex-direction:column;margin:12px 12px 0;min-height:0;flex:none;border-radius:12px}.story-art{height:clamp(230px,34dvh,340px);min-height:230px}.story-art canvas{min-height:0}.story-copy{padding:20px;border-left:0;border-top:1px solid var(--story-line);gap:12px}.story-count{font-size:9px}.story-copy .eyebrow{font-size:10px}.story-copy h2{font-size:29px}.story-copy>p:not(.eyebrow){font-size:14px;line-height:1.7}.story-takeaway{font-size:12px;padding-block:7px}.story-copy #introStart{font-size:14px}.story-controls{padding:14px 12px 8px;gap:8px}.story-controls .story-transport{flex:1}.story-controls .story-transport button{min-width:0;padding-inline:10px;font-size:12px}.story-controls .story-transport #introPlay{flex:1}.story-controls #introRestart{font-size:11px;padding-inline:9px}.story-scrub{order:3;flex-basis:100%;gap:8px}.story-bottom-note{padding:0 15px 16px;font-size:10px}.first-experiment-coach{padding:18px 15px}.first-experiment-coach h3{font-size:18px}.first-experiment-coach .button-row{display:grid;grid-template-columns:1fr 1fr;width:100%}.first-experiment-coach #finishFirstGuide{grid-column:1/-1}.intro-links{gap:8px 20px}}
@media(max-height:680px) and (min-width:741px){.story-top{padding-block:10px}.story-nav{padding-top:8px}.story-stage{margin-top:8px;min-height:300px}.story-art,.story-art canvas{min-height:300px}.story-copy{padding:18px 24px;gap:12px}.story-copy h2{font-size:28px}.story-copy>p:not(.eyebrow){font-size:14px}.story-controls{padding-block:10px}.story-bottom-note{padding-bottom:10px}}
@media(prefers-reduced-motion:reduce){.fractal-story *{animation:none!important;transition:none!important}}
@media(max-width:380px){.story-controls .story-transport{flex-basis:100%}.story-controls .story-transport button{white-space:nowrap}.story-controls .story-scrub{order:1;flex:1;min-width:0}.story-scrub output{display:none}.story-controls #introRestart{order:2}.story-logo{display:none}}
.story-shell{height:100%;min-height:0}.story-top,.story-nav,.story-shell>footer{flex-shrink:0}.story-stage{min-height:0}.story-art,.story-art canvas{min-height:0}@media(max-height:780px) and (min-width:741px){.story-top{padding-block:10px}.story-nav{padding-top:8px}.story-stage{margin-top:8px}.story-copy{padding:18px 24px;gap:12px}.story-copy h2{font-size:28px}.story-copy>p:not(.eyebrow){font-size:14px;line-height:1.65}.story-takeaway{font-size:12px;padding-block:8px}.story-controls{padding-block:10px}.story-bottom-note{padding-bottom:10px}}@media(max-width:740px){.story-shell{height:auto;min-height:100%}.story-art{height:230px;min-height:230px}.story-copy{padding:16px;gap:10px}.story-copy h2{font-size:26px}.story-copy>p:not(.eyebrow){font-size:13px;line-height:1.6}.story-count,.story-takeaway strong{display:none}.story-takeaway{padding-block:7px}.story-shell>footer{position:sticky;bottom:0;z-index:6;background:#0c141bf5;border-top:1px solid var(--story-line)}}

/* Hands-on chapters keep the live drawing and its controls together. */
.story-visual{display:flex;flex-direction:column;min-width:0;min-height:0}.story-visual>.story-art{flex:1;min-height:0}.story-playground{flex:none;padding:15px 18px;border-top:1px solid #31434b;background:#101e26}.story-playground[hidden]{display:none}.playground-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:12px}.playground-heading>span{display:flex;align-items:center;gap:7px;color:#ffbb80;font:9px var(--mono);letter-spacing:.05em}.playground-heading i{width:6px;height:6px;background:#ff8a1f;border-radius:50%;box-shadow:0 0 12px #ff8a1f}.playground-heading button{font-size:11px;min-height:32px;padding:5px 8px;background:transparent}.story-playground p{font-size:11px;color:#adc0c5;line-height:1.6;margin:8px 0 0}.play-button-row{display:flex;align-items:center;gap:7px;flex-wrap:wrap}.play-button-row+.play-button-row{margin-top:10px}.play-button-row button{min-height:38px;padding:8px 11px;font-size:12px}.play-button-row strong{font:12px var(--mono);color:#ffd39a;padding:0 8px}.story-playground button[aria-pressed=true]{background:#ff8a1f24;color:#ffc698;border-color:#ff8a1f;box-shadow:inset 0 -2px #ff8a1f}.play-button-row label{font-size:10px;color:#bbccce;flex:1;min-width:92px;max-width:130px}.play-button-row input[type=number]{width:100%;display:block;margin-top:5px;min-height:38px;padding:8px;color:#f0f3ed;background:#08131b;border:1px solid #405963;border-radius:7px;font:12px var(--mono)}.play-range{display:grid;grid-template-columns:1fr auto;gap:8px 12px;font-size:12px;color:#d2e0df;min-width:0}.play-range output{font:12px var(--mono);color:#ffba7a}.play-range input{grid-column:1/-1;width:100%;min-width:0;margin:0;accent-color:#ff8a1f}.play-range-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.seed-picker{display:flex;align-items:center;gap:15px;margin-bottom:12px}.seed-picker .play-range{flex:1}.story-copy #introHandsOn{width:100%;font-size:15px}.is-hands-on .story-copy{gap:14px}.is-hands-on .story-copy h2{font-size:clamp(25px,2.2vw,35px)}.is-hands-on .story-copy>p:not(.eyebrow){font-size:14px;line-height:1.65}.is-hands-on .story-scrub{opacity:.4}.is-hands-on .story-art{min-height:220px}.is-hands-on .story-copy{overflow:auto}.is-hands-on .story-copy #introStart{font-size:13px}.story-playground button:disabled{opacity:.42}.story-playground section[hidden]{display:none}
@media(max-width:1050px) and (min-width:741px){.is-hands-on .story-stage{grid-template-columns:minmax(0,1.4fr) minmax(260px,1fr)}.story-playground{padding:12px}.play-range-grid{gap:9px}.play-button-row button{font-size:11px;padding-inline:8px}.is-hands-on .story-copy{padding:18px;gap:12px}.is-hands-on .story-copy h2{font-size:26px}.is-hands-on .story-copy>p:not(.eyebrow){font-size:13px}.is-hands-on .story-count{display:none}}
@media(max-width:740px){.story-visual{flex:none}.story-visual>.story-art{height:230px;min-height:230px;flex:none}.story-playground{padding:13px}.playground-heading>span{font-size:8px}.playground-heading button{font-size:10px}.play-range-grid{gap:12px;grid-template-columns:1fr 1fr}.play-range-grid>label:last-child{grid-column:1/-1}.play-range{font-size:11px}.play-button-row{gap:6px}.play-button-row button{font-size:11px;padding:7px 9px;min-height:40px}.play-button-row label{max-width:none}.seed-picker{flex-wrap:wrap;gap:10px}.seed-picker .play-range{flex-basis:100%}.is-hands-on .story-copy{overflow:visible}.is-hands-on .story-copy h2{font-size:25px}.is-hands-on .story-copy>p:not(.eyebrow){font-size:13px}.is-hands-on .story-scrub{display:none}.is-hands-on .story-controls #introRestart{display:none}.is-hands-on .story-controls .story-transport{flex-basis:100%}.is-hands-on .story-controls .story-transport button{white-space:nowrap}.is-hands-on .story-bottom-note{display:none}}
@media(max-height:780px) and (min-width:741px){.is-hands-on .story-stage{overflow:auto}.is-hands-on .story-playground{padding:10px 14px}.is-hands-on .playground-heading{margin-bottom:8px}.is-hands-on .story-copy{justify-content:flex-start}}

.story-mode-hint{flex:1;text-align:center;font-size:11px;color:#91a8ae}.story-mode-hint[hidden]{display:none}.is-hands-on .story-scrub{display:none}@media(max-width:740px){.story-mode-hint{display:none}}