html{color-scheme:light}
html[data-theme="dark"]{color-scheme:dark}

body{
  background:
    radial-gradient(900px 520px at 8% -8%,var(--accent-soft) 0,transparent 68%),
    radial-gradient(700px 440px at 96% 10%,var(--evidence-soft) 0,transparent 72%),
    var(--page);
  color:var(--text);
  transition:background-color .2s ease,color .2s ease
}

.wrap{max-width:1180px;padding-top:34px}
header.hero{min-height:72vh;padding:clamp(48px,8vh,100px) 0 54px;display:flex;flex-direction:column;justify-content:center}
h1,h2{font-family:Georgia,"Times New Roman",serif;color:var(--text);letter-spacing:-.018em}
h1{font-weight:700}
h1{font-size:clamp(52px,7vw,86px);max-width:900px}
h1 .accent,a{color:var(--accent)}
.sub,.lead{color:var(--muted)}

.hero-toolbar{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:28px}
.hero-toolbar+h1{margin-top:0}
.talk-controls{display:flex;gap:8px;align-items:stretch}
.talk-control{
  display:grid;grid-template-columns:auto minmax(100px,auto);align-items:center;gap:8px;
  padding:6px 7px 6px 11px;border:1px solid var(--line);border-radius:14px;
  background:color-mix(in srgb,var(--surface) 94%,transparent);box-shadow:0 8px 22px rgba(37,51,41,.07);
  color:var(--muted);font-size:12px;transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease
}
.talk-control:hover{border-color:color-mix(in srgb,var(--accent) 45%,var(--line));transform:translateY(-1px)}
.talk-control:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 16%,transparent)}
.talk-controls select{
  min-width:108px;padding:7px 10px;border:1px solid var(--line);border-radius:9px;
  background:var(--surface);color:var(--text);font:inherit;font-weight:650;cursor:pointer
}

.badge{
  width:max-content;display:inline-flex;align-items:center;gap:9px;padding:8px 13px;
  background:color-mix(in srgb,var(--accent-soft) 72%,var(--surface));border-color:color-mix(in srgb,var(--accent) 65%,var(--line));
  color:var(--accent);box-shadow:0 8px 22px rgba(37,51,41,.07);letter-spacing:.035em
}
.badge:before{content:"";width:8px;height:8px;flex:0 0 auto;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 14%,transparent)}
.disclaimer{background:var(--warning-soft);border-color:var(--warning);color:var(--text)}
.pricectl,section.card{background:var(--surface);border-color:var(--line)}
.pricectl{box-shadow:0 8px 24px rgba(0,0,0,.035)}
section.card{box-shadow:var(--shadow)}
.tag{color:var(--accent)}

canvas,.stat,.fact,textarea,.chip,.answer{background:var(--surface-2);border-color:var(--line);color:var(--text)}
.fact,.chip{border-color:var(--accent)}
.answer.bad{background:var(--warning-soft);border-left-color:var(--warning);color:var(--text)}
.docbar{background:linear-gradient(90deg,var(--accent-soft),var(--evidence-soft));border-color:var(--line)}
.ends{background:var(--accent-soft)}
.bar{background:var(--line)}
.bar>i{background:linear-gradient(90deg,var(--accent),var(--evidence))}

.v.teal{color:var(--accent)}
.v.warn{color:var(--warning)}
.v.gold,.stat .m,.pricectl b{color:var(--evidence)}
button{background:var(--accent);color:var(--surface)}
button:hover{background:var(--text)}
button.ghost{background:transparent;border-color:var(--line);color:var(--muted)}

.story{display:grid;gap:34px;margin-bottom:78px}
.story-section{position:relative;min-height:clamp(560px,78vh,820px);padding:clamp(32px,5vw,72px);background:var(--surface);border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;justify-content:center}
.story-section h2{font-size:clamp(32px,4vw,54px);line-height:1.08;max-width:900px;margin:10px 0 20px}
.story-section p{max-width:850px}.eyebrow{margin:0;color:var(--accent);font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.story-lead{font-size:20px;color:var(--muted)}
.task-fit blockquote{margin:8px 0 24px;padding:22px 28px;border-left:5px solid var(--accent);background:var(--accent-soft);border-radius:0 18px 18px 0}.task-fit blockquote p{font:700 clamp(23px,3vw,36px)/1.25 Georgia,serif;margin:0 0 12px}.task-fit blockquote footer{font-size:16px;color:var(--muted)}.core-thesis{font-size:clamp(20px,2.4vw,30px);font-weight:800;color:var(--text)}
.hook-task-map{margin-top:24px;padding:20px 22px;background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.hook-task-map h2{font-size:clamp(24px,3vw,36px);margin:6px 0 12px}.hook-task-map blockquote{margin:0 0 12px;padding:12px 16px}.hook-task-map blockquote p{font-size:clamp(18px,2vw,24px);margin-bottom:4px}.hook-task-map blockquote footer{margin:0;padding:0;border:0}.hook-task-map .core-thesis{margin:10px 0;font-size:clamp(17px,2vw,22px)}
.task-methods{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin-top:24px}.hook-task-map .task-methods{gap:8px;margin-top:12px}.task-method{padding:18px;background:var(--surface-2);border:1px solid var(--line);border-radius:15px}.hook-task-map .task-method{padding:10px 12px}.task-method h3{font-size:16px;margin:0 0 8px}.hook-task-map .task-method h3{font-size:14px;margin-bottom:4px}.task-method p{font-size:13px;color:var(--muted);margin:0}.hook-task-map .task-method p{font-size:12px;line-height:1.35}
.context-layers{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:18px 0 26px}.context-layers>div{padding:18px;border:1px solid var(--line);border-radius:14px;background:var(--surface-2);font-weight:700}.context-layers [data-layer="fresh"]{border-color:var(--accent)}.context-layers [data-layer="critical"]{border-color:var(--evidence)}.context-layers [data-layer="heavy"]{border-color:var(--repeat)}
.context-routes{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.context-routes article{padding:22px;border:2px solid var(--line);border-radius:18px;background:var(--surface-2)}.context-routes h3{margin:0 0 8px;letter-spacing:.12em}.context-routes p{margin:0;color:var(--muted)}.context-routes [data-route="keep"]{border-color:var(--accent)}.context-routes [data-route="store"]{border-color:var(--evidence)}.context-routes [data-route="drop"]{border-color:var(--muted)}.context-routes [data-route="loss"]{grid-column:1/-1;border-color:var(--warning);background:var(--warning-soft);position:relative}.context-routes [data-route="loss"]:before{content:"↘";position:absolute;right:24px;top:-28px;font-size:52px;color:var(--warning)}.flow-definitions{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px}.flow-definitions p{padding:14px 18px;border-radius:12px;background:var(--surface-2);margin:0}
.matrix-stage{display:grid;grid-template-columns:minmax(420px,1.25fr) minmax(220px,.75fr);gap:28px;align-items:center}.matrix-grid{display:grid;gap:6px;padding:18px;background:var(--surface-2);border:1px solid var(--line);border-radius:20px}.matrix-row{display:grid;grid-template-columns:repeat(10,1fr);gap:6px;width:100%;padding:0;border:0;background:transparent;opacity:.18;transition:opacity .18s,transform .18s}.matrix-row:hover{background:transparent}.matrix-row.is-visible{opacity:1}.matrix-row.is-current{transform:translateX(6px)}.matrix-cell{display:block;aspect-ratio:1;border-radius:5px;background:transparent;border:1px solid var(--line)}.matrix-cell.is-fresh{background:var(--accent);border-color:var(--accent)}.matrix-cell.is-repeated{background:var(--repeat-soft);border-color:var(--repeat)}.matrix-cell.is-empty{opacity:.25}.matrix-stats{display:grid;gap:12px}.matrix-stats>div{padding:18px;background:var(--surface-2);border:1px solid var(--line);border-radius:14px}.matrix-stats span{display:block;color:var(--muted);font-size:13px}.matrix-stats output{display:block;font-size:clamp(28px,4vw,48px);font-weight:800}.matrix-stats>div:nth-child(2) output{color:var(--repeat)}.matrix-stats>div:nth-child(3) output{color:var(--evidence)}.matrix-controls{display:flex;gap:10px;align-items:center;margin-top:22px;flex-wrap:wrap}.matrix-controls output{margin-left:auto;font-weight:800}.matrix-controls button:disabled{opacity:.35;cursor:not-allowed}
.evidence-mystery{display:flex;gap:18px;align-items:center;width:max-content;max-width:100%;padding:14px 20px;background:var(--surface-2);border:1px solid var(--line);border-radius:14px}.evidence-mystery strong{font-size:34px;color:var(--warning)}.evidence-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:24px 0}.evidence-card{padding:20px;border:1px solid var(--line);border-radius:17px;background:var(--surface-2)}.evidence-card.featured{border:2px solid var(--accent);background:var(--accent-soft)}.evidence-kind{display:block;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.evidence-card strong{display:block;margin:8px 0;font-size:clamp(29px,3vw,44px)}.evidence-card p{font-size:13px;color:var(--muted)}.threshold-badge,.status-pill{display:inline-block;padding:5px 10px;border-radius:999px;background:var(--warning-soft);color:var(--warning);font-size:12px;font-weight:800}.distribution{margin-top:10px}.distribution-track{position:relative;height:30px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line)}.iqr,.threshold{position:absolute;top:6px;height:16px;left:calc(var(--from)*1%);width:calc((var(--to) - var(--from))*1%);border-radius:999px}.iqr{background:var(--accent)}.threshold{background:var(--warning-soft);border:2px solid var(--warning)}.median{position:absolute;top:-7px;bottom:-7px;left:calc(var(--value)*1%);width:3px;background:var(--text)}.distribution-axis{display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}
.whole-session{text-align:center;align-items:center}.equation{font:800 clamp(40px,7vw,82px)/1.1 Georgia,serif;color:var(--accent);margin:28px 0}.unknown-note,.overlap-warning,.quality-limit{padding:16px 20px;border-radius:14px;background:var(--warning-soft);border:1px solid var(--warning);font-weight:700}
.research-targets{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:22px}.research-targets article{padding:18px;background:var(--surface-2);border:1px solid var(--line);border-radius:15px}.research-targets span{display:block;color:var(--muted);font-size:13px}.research-targets strong{font-size:32px}.research-targets p{font-size:13px;margin:8px 0 0}.method-table-wrap{overflow-x:auto}.method-table{min-width:900px}.method-table th:first-child{font-weight:800}.method-sources{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.method-sources a{font-size:12px;padding:7px 10px;border:1px solid var(--line);border-radius:999px;background:var(--surface-2)}
.quality-checks,.conclusion-checks{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;list-style:none;padding:0;counter-reset:item}.quality-checks li,.conclusion-checks li{counter-increment:item;padding:24px 18px;background:var(--surface-2);border:1px solid var(--line);border-radius:16px;font-weight:700}.quality-checks li:before,.conclusion-checks li:before{content:counter(item);display:block;width:32px;height:32px;margin-bottom:14px;border-radius:50%;background:var(--accent);color:var(--surface);text-align:center;line-height:32px}.conclusion-checks{grid-template-columns:repeat(3,1fr)}.final-thesis{font:800 clamp(28px,4vw,50px)/1.16 Georgia,serif;color:var(--accent);margin-top:36px}.quality-conclusion{gap:30px}.quality-conclusion>.conclusion{padding-top:26px;border-top:1px solid var(--line)}

.story-section.card{margin:0;min-height:clamp(620px,82vh,940px)}.story-section.card>.tag{margin-bottom:4px}.story-section.card>.lead{font-size:17px;max-width:900px}.story-section.card .controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));width:100%}.demo-price{display:grid;grid-template-columns:auto auto auto minmax(190px,1fr);align-items:center;width:100%;margin-top:18px}.demo-price .hint{grid-column:1/-1}.bridge-section{border-width:2px;border-color:var(--evidence);background:linear-gradient(145deg,var(--surface),var(--evidence-soft))}.bridge-section:before{content:"KEEP → STORE → DROP";position:absolute;right:28px;top:22px;color:var(--evidence);font-size:12px;font-weight:800;letter-spacing:.12em}
.skill-system-summary{margin:16px 0;padding:18px;background:var(--evidence-soft);border:1px solid var(--evidence);border-radius:16px}.skill-system-summary h3{margin:0 0 12px;font-size:18px}.skill-evidence-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}.skill-evidence-pair article{padding:14px;background:var(--surface);border:1px solid var(--line);border-radius:13px}.skill-evidence-pair span{font-size:12px;font-weight:800;text-transform:uppercase;color:var(--muted)}.skill-evidence-pair strong{display:block;font-size:28px;margin:4px 0}.skill-evidence-pair p,.rounding-note{margin:0;color:var(--muted);font-size:13px}.rounding-note{margin-top:10px}.skill-system-summary .overlap-warning{margin:10px 0 0}.source-jump{display:inline-block;margin-top:12px;font-weight:800}
.talk-appendix{margin:80px 0 32px;padding:clamp(24px,4vw,48px);background:var(--surface);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow)}.talk-appendix .methods>h2{font-size:clamp(28px,3.5vw,44px);margin:8px 0 20px}.talk-appendix:before{content:"APPENDIX";display:block;margin-bottom:12px;color:var(--muted);font-size:12px;font-weight:800;letter-spacing:.14em}.talk-appendix .method-table-wrap{max-width:100%}
.skills-mcp-sources{margin-top:46px;padding-top:36px;border-top:1px solid var(--line)}.skills-mcp-sources>h2{font-size:clamp(28px,3.5vw,44px);margin:8px 0 12px}.scenario-grid,.mcp-grid,.source-catalog{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:18px 0}.scenario-grid article,.mcp-grid article,.source-catalog article{padding:16px;background:var(--surface-2);border:1px solid var(--line);border-radius:14px}.scenario-grid span,.mcp-grid span,.source-catalog span{display:block;color:var(--muted);font-size:11px;font-weight:800;text-transform:uppercase}.scenario-grid strong,.mcp-grid strong,.source-catalog a{display:block;margin:5px 0;font-size:18px;font-weight:800}.scenario-grid h3{margin:5px 0;font-size:17px}.scenario-grid p,.mcp-grid p,.source-catalog p{margin:4px 0 0;color:var(--muted);font-size:13px}.token-estimate{display:block;margin:8px 0;color:var(--evidence);font-size:14px;line-height:1.4;overflow-wrap:anywhere}.source-catalog p:last-child{color:var(--warning)}.full-source-link{margin-top:18px;font-weight:800}

.recall-plot{position:relative}.recall-marker{position:absolute;width:16px;height:16px;border-radius:50%;background:var(--evidence);border:3px solid var(--surface);box-shadow:0 0 0 2px var(--evidence),0 4px 12px rgba(0,0,0,.2);transform:translate(-50%,-50%);pointer-events:none}
.token-range-chart{margin-top:18px;padding:18px;background:var(--surface-2);border:1px solid var(--line);border-radius:14px}.token-range-axis{position:relative;height:18px;margin:0 84px 8px calc(36% + 14px);font-size:12px;color:var(--muted)}.token-range-axis span{position:absolute;left:var(--tick);transform:translateX(-50%)}.token-range-axis span:first-child{transform:none}.token-range-axis span:last-child{transform:translateX(-100%)}.token-range{display:grid;grid-template-columns:minmax(180px,36%) 1fr 70px;gap:14px;align-items:center;margin:12px 0;font-size:13px}.token-range strong{text-align:right}.token-range-track{position:relative;height:16px;border-radius:999px;background:linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:33.333% 100%;border:1px solid var(--line)}.token-range-track i{position:absolute;top:2px;bottom:2px;left:var(--left);width:max(10px,var(--width));border-radius:999px;background:var(--evidence);transform:translateX(-5px)}
.prompt-metrics{display:grid;gap:12px;margin-top:20px}.prompt-metric{display:grid;grid-template-columns:minmax(150px,1fr) minmax(260px,3fr) 90px;gap:14px;align-items:center;padding:13px 16px;background:var(--surface-2);border:1px solid var(--line);border-radius:12px}.prompt-metric span{font-weight:700}.prompt-metric strong{text-align:right}.prompt-metric meter{width:100%;height:18px;accent-color:var(--accent)}.prompt-metric[data-prompt-metric="tokens"] meter{accent-color:var(--repeat)}.prompt-metric[data-prompt-metric="retries"] meter{accent-color:var(--evidence)}
.presenter-nav{position:fixed;right:clamp(12px,2vw,28px);bottom:clamp(12px,2vw,28px);z-index:30;display:flex;align-items:center;gap:8px;padding:8px;border:1px solid var(--line);border-radius:999px;background:color-mix(in srgb,var(--surface) 92%,transparent);box-shadow:var(--shadow);backdrop-filter:blur(12px)}.presenter-nav button{width:38px;height:38px;padding:0;border-radius:50%;font-size:18px}.presenter-nav button span:before{content:"←"}.presenter-nav #presenter_next span:before{content:"→"}.presenter-nav button:disabled{opacity:.35;cursor:not-allowed}.presenter-nav output{min-width:58px;text-align:center;font-size:13px;font-weight:800;color:var(--muted);font-variant-numeric:tabular-nums}.method-table-wrap{max-width:100%;overscroll-behavior-inline:contain;scrollbar-gutter:stable;touch-action:pan-x}

input[type=range]{accent-color:var(--accent)}
:is(a,button,select,input,textarea,.chip,summary):focus-visible{
  outline:3px solid var(--focus);outline-offset:3px
}

@media (max-width:640px){
  .hero-toolbar{flex-wrap:wrap;gap:12px;margin-bottom:22px}
  .talk-controls{width:100%;box-sizing:border-box}
  .talk-control{flex:1;min-width:0;grid-template-columns:1fr;gap:4px;padding:8px}
  .talk-controls select{width:100%;min-width:0}
  header.hero{padding-top:18px}
  h1{font-size:34px}
  section.card{padding:22px 18px}
  .token-range-axis{margin:0 72px 8px 0}.token-range{grid-template-columns:1fr 58px}.token-range>span:first-child{grid-column:1/-1}.prompt-metric{grid-template-columns:1fr auto}.prompt-metric meter{grid-column:1/-1;grid-row:2}
  .story-section{min-height:0;padding:28px 20px;border-radius:20px}.story-section.card{min-height:0}.task-methods,.context-layers,.context-routes,.flow-definitions,.evidence-cards,.research-targets,.quality-checks,.conclusion-checks,.skill-evidence-pair,.scenario-grid,.mcp-grid,.source-catalog{grid-template-columns:1fr}.hook-task-map{padding:18px}.hook-task-map .task-methods{grid-template-columns:repeat(2,minmax(0,1fr))}.hook-task-map .task-method:last-child{grid-column:1/-1}.matrix-stage{grid-template-columns:1fr}.method-table-wrap{margin-inline:-20px;padding-inline:20px}.context-routes [data-route="loss"]{grid-column:auto}.demo-price{grid-template-columns:1fr auto}.demo-price input,.demo-price .hint{grid-column:1/-1}.bridge-section:before{display:none}.talk-appendix{margin-top:52px;padding:28px 20px}.quality-conclusion{gap:22px}.presenter-nav{right:10px;bottom:10px}.presenter-nav output{min-width:48px}.presenter-nav button{width:34px;height:34px}
}

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