/* AI Lineage · styles.css · fonts are self-hosted (IBM Plex: OFL 1.1; Bricolage Grotesque: OFL 1.1) */
@font-face{font-family:'Bricolage Grotesque';font-style:normal;font-display:swap;font-weight:200 800;src:url(/fonts/bricolage-grotesque-latin-opsz-normal.woff2) format('woff2-variations');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Bricolage Grotesque';font-style:normal;font-display:swap;font-weight:200 800;src:url(/fonts/bricolage-grotesque-latin-ext-opsz-normal.woff2) format('woff2-variations');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-display:swap;font-weight:400;src:url(/fonts/ibm-plex-sans-latin-400-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-display:swap;font-weight:400;src:url(/fonts/ibm-plex-sans-latin-ext-400-normal.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-display:swap;font-weight:500;src:url(/fonts/ibm-plex-sans-latin-500-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-display:swap;font-weight:500;src:url(/fonts/ibm-plex-sans-latin-ext-500-normal.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-display:swap;font-weight:600;src:url(/fonts/ibm-plex-sans-latin-600-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-display:swap;font-weight:600;src:url(/fonts/ibm-plex-sans-latin-ext-600-normal.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-display:swap;font-weight:400;src:url(/fonts/ibm-plex-mono-latin-400-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-display:swap;font-weight:400;src:url(/fonts/ibm-plex-mono-latin-ext-400-normal.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-display:swap;font-weight:500;src:url(/fonts/ibm-plex-mono-latin-500-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-display:swap;font-weight:500;src:url(/fonts/ibm-plex-mono-latin-ext-500-normal.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-display:swap;font-weight:600;src:url(/fonts/ibm-plex-mono-latin-600-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-display:swap;font-weight:600;src:url(/fonts/ibm-plex-mono-latin-ext-600-normal.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}

/* ============ tokens : dark is the resting world ============ */
:root{
  color-scheme: dark;
  --ink:#0A0E12; --surface:#111821; --surface-2:#18222D; --raise:#1E2A36;
  --line:#263644; --line-soft:#1B2631;
  --text:#E8EFF4; --dim:#A2B5C2; --faint:#7F97A6;
  --pos:#22D3EE; --neg:#FB923C; --raw:#34D399; --clean:#2DD4BF; --err:#F87171; --attn:#FACC15;
  --grid-line:rgba(226,240,248,.07);
  --pos-strong:#22D3EE; --on-pos:#0A0E12; --scrim:rgba(4,8,12,.62);
  --hdr:54px; --r:4px;
  --fd:"Bricolage Grotesque",ui-sans-serif,"Trebuchet MS",sans-serif;
  --fb:"IBM Plex Sans",ui-sans-serif,system-ui,"Segoe UI",sans-serif;
  --fm:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
}
@media (prefers-color-scheme: light){
  :root:not([data-theme="dark"]){
    color-scheme: light;
    --ink:#EDF1F4; --surface:#FFFFFF; --surface-2:#F4F8FA; --raise:#E6EEF3;
    --line:#C6D5DE; --line-soft:#DCE5EB;
    --text:#0A1620; --dim:#3D5666; --faint:#4F6879;
    --pos:#0284C7; --neg:#EA580C; --raw:#059669; --clean:#0D9488; --err:#DC2626; --attn:#B45309;
    --grid-line:rgba(10,22,32,.09);
    --pos-strong:#0369A1; --on-pos:#FFFFFF; --scrim:rgba(10,22,32,.38);
  }
}
:root[data-theme="light"]{
  color-scheme: light;
  --ink:#EDF1F4; --surface:#FFFFFF; --surface-2:#F4F8FA; --raise:#E6EEF3;
  --line:#C6D5DE; --line-soft:#DCE5EB;
  --text:#0A1620; --dim:#3D5666; --faint:#4F6879;
  --pos:#0284C7; --neg:#EA580C; --raw:#059669; --clean:#0D9488; --err:#DC2626; --attn:#B45309;
  --grid-line:rgba(10,22,32,.09);
  --pos-strong:#0369A1; --on-pos:#FFFFFF; --scrim:rgba(10,22,32,.38);
}
*,*::before,*::after{box-sizing:border-box}
body{
  margin:0; background:var(--ink); color:var(--text);
  font-family:var(--fb); font-size:15.5px; line-height:1.6;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
h1,h2,h3{font-family:var(--fd); font-weight:800; line-height:1.03; letter-spacing:-.015em; text-wrap:balance; margin:0}
p{margin:0}
a{color:var(--pos)}
:focus-visible{outline:2px solid var(--attn); outline-offset:2px; border-radius:2px}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.wrap{max-width:1660px;margin:0 auto;padding-inline:clamp(16px,3vw,44px)}

/* ============ header ============ */
header.bar{
  position:sticky; top:env(safe-area-inset-top,0px); z-index:60;
  height:var(--hdr); display:flex; align-items:center;
  border-bottom:1px solid var(--line);
  background:color-mix(in srgb,var(--ink) 88%,transparent);
  backdrop-filter:blur(14px) saturate(1.3);
}
.bar .wrap{display:flex;align-items:center;gap:14px;width:100%}
.mark{font-family:var(--fd);font-weight:800;font-size:14.5px;letter-spacing:-.01em;white-space:nowrap}
.mark span{color:var(--pos)}
.ticks{display:flex;gap:3px;flex:1;min-width:0;align-items:center}
.ticks button{
  flex:1 1 0; min-width:0; height:22px; padding:0; border:0; background:none; cursor:pointer;
  display:flex;align-items:flex-end;
}
.ticks button i{display:block;width:100%;height:3px;background:var(--line);transition:background .25s,height .25s}
.ticks button[aria-current="true"] i{background:var(--pos);height:7px}
.ticks button:hover i{background:var(--dim)}
.counter{font-family:var(--fm);font-size:11.5px;color:var(--faint);letter-spacing:.06em;white-space:nowrap}
.seg{display:flex;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--surface)}
.seg button{
  font-family:var(--fm);font-size:11px;letter-spacing:.07em;text-transform:uppercase;
  padding:6px 10px;border:0;background:none;color:var(--faint);cursor:pointer;white-space:nowrap;
  border-right:1px solid var(--line);
}
.seg button:last-child{border-right:0}
.seg button[aria-pressed="true"]{background:var(--raise);color:var(--text)}
.iconbtn{
  width:32px;height:32px;display:grid;place-items:center;border:1px solid var(--line);
  background:var(--surface);color:var(--dim);border-radius:var(--r);cursor:pointer;flex:none;
}
.iconbtn[aria-pressed="true"]{border-color:var(--attn);color:var(--attn)}
.iconbtn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
@media(max-width:900px){ .ticks,.counter{display:none} }
@media(max-width:560px){ .seg button{padding:6px 7px;font-size:10px} .mark{font-size:12.5px} }

/* ============ hero ============ */
.hero{padding-block:clamp(40px,7vh,84px) clamp(28px,5vh,56px);border-bottom:1px solid var(--line-soft)}
.eyebrow{font-family:var(--fm);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--faint)}
.hero h1{font-size:clamp(36px,6vw,76px);margin-block:14px 0;max-width:17ch}
.hero h1 em{font-style:normal;color:var(--pos)}
.hero .lede{max-width:62ch;color:var(--dim);font-size:clamp(16px,1.5vw,18.5px);margin-top:18px}
.lineage{margin-top:34px;border:1px solid var(--line);background:var(--surface);border-radius:var(--r);overflow:hidden}
.lineage canvas{display:block;width:100%;height:130px}
.hero .meta{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:22px;font-family:var(--fm);font-size:11.5px;color:var(--faint)}
.hero .meta b{color:var(--text);font-weight:500}

/* ============ chapter shell ============ */
.chapter{position:relative;display:flex;flex-direction:column;gap:18px;border-top:1px solid var(--line-soft);padding-block:clamp(28px,5vh,52px)}
@media(min-width:1024px){
  .chapter{display:grid;grid-template-columns:minmax(0,1.32fr) minmax(0,1fr);gap:clamp(26px,3vw,60px)}
  .stage-col{min-width:0}
}
@media(max-width:1023px){ .stage-col{display:contents} }
.stage{
  position:sticky; top:calc(var(--hdr) + env(safe-area-inset-top,0px) + 12px);
  height:clamp(330px,72vh,700px); min-width:0;
  border:1px solid var(--line); background:var(--surface); border-radius:var(--r);
  display:flex; flex-direction:column; overflow:hidden; z-index:5;
}
@media(max-width:1023px){ .stage{height:clamp(300px,50vh,440px)} }
.stage-head{
  display:flex;align-items:center;gap:10px;padding:8px 12px;border-bottom:1px solid var(--line-soft);
  font-family:var(--fm);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);
  background:var(--surface-2);flex:none;
}
.stage-head .dot{width:6px;height:6px;border-radius:50%;background:var(--pos);flex:none}
.stage-head .ro{margin-left:auto;color:var(--dim);text-transform:none;letter-spacing:0;font-size:11.5px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.canvas-box{position:relative;flex:1;min-height:0}
.canvas-box canvas{display:block;width:100%;height:100%;touch-action:none}
.stage-foot{
  display:flex;align-items:center;gap:8px;padding:8px 12px;border-top:1px solid var(--line-soft);
  background:var(--surface-2);flex:none;flex-wrap:wrap;
}
.btn{
  font-family:var(--fm);font-size:11.5px;letter-spacing:.04em;padding:5px 11px;
  border:1px solid var(--line);background:var(--surface);color:var(--text);
  border-radius:var(--r);cursor:pointer;white-space:nowrap;
}
.btn:hover{border-color:var(--dim)}
.btn[data-on="true"]{border-color:var(--pos);color:var(--pos)}
.btn.ghost{background:none;color:var(--faint)}
.link-chip{
  margin-left:auto;font-family:var(--fm);font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--faint);display:flex;align-items:center;gap:6px;
}
.link-chip b{color:var(--pos);font-weight:500}
.link-chip.off b{color:var(--neg)}

/* ============ narrative ============ */
.narrative{min-width:0;padding-block:0 clamp(20px,10vh,120px);display:flex;flex-direction:column;gap:22px}
@media(min-width:1024px){ .narrative{padding-block:4vh 30vh} }
.ch-no{font-family:var(--fm);font-size:11px;letter-spacing:.2em;color:var(--faint);display:flex;align-items:center;gap:10px}
.ch-no::after{content:"";flex:1;height:1px;background:var(--line)}
.narrative h2{font-size:clamp(27px,3.4vw,42px);max-width:18ch}
.narrative .sub{color:var(--dim);max-width:56ch}
.beat{
  border-left:1px solid var(--line);padding:2px 0 2px 18px;position:relative;
  color:var(--dim);transition:border-color .3s,color .3s;
}
.beat::before{
  content:"";position:absolute;left:-3px;top:11px;width:5px;height:5px;border-radius:50%;
  background:var(--line);transition:background .3s,transform .3s;
}
.beat.on{border-color:var(--pos);color:var(--text)}
.beat.on::before{background:var(--pos);transform:scale(1.5)}
.beat h3{font-family:var(--fb);font-weight:600;font-size:15px;letter-spacing:0;margin-bottom:3px;color:var(--text)}
.beat p{font-size:14.5px}
.mode-body p + p{margin-top:10px}
.mode-body{font-size:15px}
.mode-body .tag{
  display:inline-block;font-family:var(--fm);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--faint);border:1px solid var(--line);padding:1px 6px;border-radius:2px;margin-bottom:8px;
}
[data-mode="explorer"] .lvl:not(.lvl-e),
[data-mode="practitioner"] .lvl:not(.lvl-p),
[data-mode="researcher"] .lvl:not(.lvl-r){display:none}

/* ============ controls ============ */
.panel{border:1px solid var(--line);background:var(--surface);border-radius:var(--r)}
.panel > .ph{
  font-family:var(--fm);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);
  padding:8px 12px;border-bottom:1px solid var(--line-soft);background:var(--surface-2);
}
.panel > .pb{padding:12px;display:flex;flex-direction:column;gap:12px}
[hidden]{display:none!important}
.ctl{display:grid;gap:5px}
.ctl label{font-family:var(--fm);font-size:11px;letter-spacing:.05em;color:var(--dim);display:flex;gap:8px}
.ctl label b{margin-left:auto;color:var(--text);font-weight:500;font-variant-numeric:tabular-nums}
input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;height:20px;background:none;cursor:pointer;margin:0;
}
input[type=range]::-webkit-slider-runnable-track{height:2px;background:var(--line)}
input[type=range]::-moz-range-track{height:2px;background:var(--line)}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:var(--pos);margin-top:-6px;border:0;
}
input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:var(--pos);border:0}
select,input[type=text]{
  font-family:var(--fm);font-size:12px;padding:6px 8px;background:var(--surface-2);color:var(--text);
  border:1px solid var(--line);border-radius:var(--r);width:100%;
}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chips button{
  font-family:var(--fm);font-size:11px;padding:5px 10px;border:1px solid var(--line);
  background:var(--surface-2);color:var(--faint);border-radius:var(--r);cursor:pointer;
}
.chips button[aria-pressed="true"]{border-color:var(--pos);color:var(--pos);background:var(--surface)}
.readout{display:grid;grid-template-columns:repeat(auto-fit,minmax(88px,1fr));gap:1px;background:var(--line-soft)}
.readout div{background:var(--surface);padding:8px 10px}
.readout dt{font-family:var(--fm);font-size:9.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--faint)}
.readout dd{margin:2px 0 0;font-family:var(--fm);font-size:16px;font-variant-numeric:tabular-nums}
.readout dd small{font-size:10.5px;color:var(--faint)}
.swatch{display:inline-block;width:9px;height:9px;border-radius:2px;vertical-align:baseline;margin-right:5px}

/* math + code */
math{font-size:1.02em}
.eq{
  border:1px solid var(--line);background:var(--surface-2);border-radius:var(--r);
  padding:12px 14px;overflow-x:auto;
}
.eq .cap{font-family:var(--fm);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin-bottom:7px}
code{font-family:var(--fm);font-size:.9em;background:var(--surface-2);border:1px solid var(--line-soft);padding:1px 4px;border-radius:2px}
.note{font-family:var(--fm);font-size:11.5px;color:var(--faint);line-height:1.55;border-top:1px dashed var(--line);padding-top:10px}

/* footer */
footer{border-top:1px solid var(--line);padding-block:40px 60px;color:var(--faint);font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between}
footer b{color:var(--text);font-weight:600}

/* step mode */
[data-motion="step"] .stage-foot .scrub-only{display:none}
.stepper{display:none;gap:6px}
[data-motion="step"] .stepper{display:flex}

.js .fade{opacity:.28;transform:translateY(14px);transition:opacity .6s cubic-bezier(.2,.7,.3,1),transform .6s cubic-bezier(.2,.7,.3,1)}
.js .fade.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  .js .fade{opacity:1;transform:none;transition:none}
  *{scroll-behavior:auto !important}
}

/* ============ v0.2 additions ============ */
.stage-head{white-space:nowrap;overflow:hidden}
.sh-t{min-width:0;overflow:hidden;text-overflow:ellipsis;flex:1 1 auto}
.sh-t > span{overflow:hidden;text-overflow:ellipsis}
.stage-head .ro{flex:0 1 auto;max-width:48%}
@media(max-width:560px){.stage-head .ro{display:none}}
@media(max-width:1023px){#ch12 .stage,#ch9 .stage,#ch2 .stage{height:clamp(360px,62vh,540px)}}
.skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--pos-strong);color:var(--on-pos);padding:10px 14px;border-radius:var(--r);font-weight:600;text-decoration:none}
.skip:focus{top:calc(env(safe-area-inset-top,0px) + 8px)}
main:focus{outline:none}
.bar-in{display:flex;align-items:center;gap:14px;width:100%}
.mark{text-decoration:none;color:var(--text)}
.tools{display:flex;gap:6px;flex:none}
.iconbtn{transition:border-color .2s,color .2s,transform .12s}
.iconbtn:hover{border-color:var(--dim);color:var(--text)}
.iconbtn:active,.btn:active{transform:translateY(1px)}
@media(max-width:760px){
  :root{--hdr:100px}
  .bar .bar-in{display:grid;grid-template-columns:1fr auto;grid-template-rows:40px 40px;row-gap:6px;column-gap:10px;padding-block:6px}
  .bar .bar-in .mark{grid-column:1;grid-row:1;align-self:center}
  .bar .bar-in .tools{grid-column:2;grid-row:1}
  .bar .bar-in .modes{grid-column:1 / -1;grid-row:2;display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
  .bar .bar-in .modes button{padding:9px 4px;font-size:10.5px}
  .iconbtn{width:36px;height:36px}
}
.btn{min-height:32px;transition:border-color .2s,color .2s,background .2s,transform .12s}
.btn.primary{background:var(--pos-strong);color:var(--on-pos);border-color:var(--pos-strong);font-weight:600}
.btn.primary:hover{filter:brightness(1.08)}
.cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.cta .btn{font-size:13px;padding:10px 18px;min-height:44px}
.lineage canvas{cursor:pointer}
.ctl .lbl{font-family:var(--fm);font-size:11px;letter-spacing:.05em;color:var(--dim);display:flex;gap:8px}
.ctl .lbl b{margin-left:auto;color:var(--text);font-weight:500}
.sw-pos{background:var(--pos)} .sw-neg{background:var(--neg)}
.ml0{margin-left:0 !important} .dd-sm{font-size:12.5px !important}
textarea{font-family:var(--fb);font-size:13.5px;line-height:1.5;padding:8px 10px;background:var(--surface-2);color:var(--text);border:1px solid var(--line);border-radius:var(--r);width:100%;resize:vertical}
.try{font-size:14.5px;color:var(--text);border-top:1px dashed var(--line);border-bottom:1px dashed var(--line);padding-block:10px;max-width:60ch}
.try b{font-family:var(--fm);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--attn);font-weight:500;margin-right:8px}
.ways{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);border-radius:var(--r);overflow:hidden}
.way{all:unset;box-sizing:border-box;display:flex;flex-direction:column;gap:3px;padding:12px 14px;background:var(--surface);cursor:pointer;min-height:44px;transition:background .2s}
.way:hover{background:var(--surface-2)}
.way:focus-visible{outline:2px solid var(--attn);outline-offset:-2px}
.way b{font-family:var(--fd);font-weight:800;font-size:15px}
.way span{font-size:13.5px;color:var(--dim);line-height:1.45}
.way i{font-style:normal;font-family:var(--fm);font-size:10.5px;color:var(--faint);letter-spacing:.04em}
.way[aria-current="true"]{background:var(--surface-2);box-shadow:inset 0 -2px 0 var(--pos)}
@media(max-width:480px){.ways{grid-template-columns:1fr}}
/* patterns */
.patgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px}
.patbtn{all:unset;box-sizing:border-box;display:grid;grid-template-columns:34px 1fr;align-items:center;gap:10px;padding:8px 10px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);cursor:pointer;min-height:48px;font-size:13px;line-height:1.25;transition:border-color .2s,background .2s}
.patbtn canvas{width:34px;height:34px;display:block}
.patbtn:hover{border-color:var(--dim)}
.patbtn:focus-visible{outline:2px solid var(--attn);outline-offset:2px}
.patbtn.on{border-color:var(--attn);background:var(--surface-2)}
/* checks */
.tabs{display:flex;flex-wrap:wrap;gap:6px}
.tabs button{font-family:var(--fm);font-size:11px;padding:7px 10px;border:1px solid var(--line);background:var(--surface-2);color:var(--faint);border-radius:var(--r);cursor:pointer;min-height:34px}
.tabs button[aria-selected="true"]{border-color:var(--attn);color:var(--text);background:var(--surface)}
.tabs button small{color:var(--dim);margin-left:4px}
.checks{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
.check{display:grid;grid-template-columns:22px 1fr;gap:10px;padding:12px 14px;border-top:1px solid var(--line-soft);cursor:pointer}
.check:first-child{border-top:0}
.check input{width:18px;height:18px;margin:2px 0 0;accent-color:var(--pos-strong);cursor:pointer}
.check b{display:block;font-weight:600;font-size:14.5px;margin-bottom:2px}
.check span{display:block;font-size:13.5px;color:var(--dim);line-height:1.5}
.check.done b{color:var(--clean)}
/* charter + limits */
.charter{border:1px solid var(--line);background:var(--surface);border-radius:var(--r)}
.charter-h{display:flex;flex-wrap:wrap;gap:6px 12px;align-items:baseline;padding:10px 14px;border-bottom:1px solid var(--line-soft);background:var(--surface-2)}
.charter-h b{font-family:var(--fd);font-size:17px}
.charter-h span{font-family:var(--fm);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint)}
.charter ol{margin:0;padding:12px 16px 12px 36px;display:flex;flex-direction:column;gap:7px;font-size:14.5px}
.charter ol li[data-tampered="true"]{color:var(--err)}
.hashes{display:grid;gap:6px;padding:10px 14px;border-top:1px solid var(--line-soft)}
.hashes div{display:grid;gap:2px}
.hashes span{font-family:var(--fm);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint)}
.hashes code{font-size:11px;word-break:break-all;background:none;border:0;padding:0;color:var(--clean)}
.hashes code.bad{color:var(--err)}
.limits{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);border-radius:var(--r);overflow:hidden}
.limits > div{background:var(--surface);padding:12px 14px}
.limits h3{font-family:var(--fb);font-weight:600;font-size:14px;margin-bottom:6px}
.limits > div:first-child h3{color:var(--clean)} .limits > div:last-child h3{color:var(--neg)}
.limits ul{margin:0;padding-left:18px;font-size:13.5px;color:var(--dim);display:flex;flex-direction:column;gap:4px}
@media(max-width:560px){.limits{grid-template-columns:1fr}}
/* dialogs */
dialog{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:var(--r);padding:0;width:min(760px,calc(100vw - 24px));max-height:min(86vh,860px);box-shadow:0 30px 80px -30px rgba(0,0,0,.6)}
dialog::backdrop{background:var(--scrim);backdrop-filter:blur(3px)}
dialog[open]{display:flex;flex-direction:column;animation:dlgIn .28s cubic-bezier(.16,1,.3,1)}
@keyframes dlgIn{from{opacity:0;transform:translateY(10px) scale(.985)}to{opacity:1;transform:none}}
.dlg-h{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line-soft);background:var(--surface-2)}
.dlg-h h2{font-size:22px}
.dlg-b{padding:16px;overflow:auto}
.dlg-f{display:flex;gap:8px;justify-content:space-between;flex-wrap:wrap;padding:10px 16px;border-top:1px solid var(--line-soft);background:var(--surface-2)}
.info h3{font-family:var(--fb);font-weight:600;font-size:14px;margin:16px 0 4px}
.info h3:first-child{margin-top:0}
.info p,.info li{font-size:14px;color:var(--dim)}
.info ul,.info ol{padding-left:20px;margin:0;display:flex;flex-direction:column;gap:4px}
.src li{font-size:13px}
.sec-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 22px}
.sec-list h3{font-family:var(--fm);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);font-weight:500;margin-bottom:6px}
.sec-list a{display:grid;grid-template-columns:34px 1fr;gap:6px;padding:8px 6px;border-radius:var(--r);text-decoration:none;color:var(--text);font-size:14.5px;min-height:40px;align-items:center}
.sec-list a:hover,.sec-list a[aria-current="true"]{background:var(--surface-2)}
.sec-list a span{font-family:var(--fm);font-size:11px;color:var(--faint)}
@media(max-width:560px){.sec-list{grid-template-columns:1fr}}
.pat{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:18px}
.pat-cv{border:1px solid var(--line-soft);border-radius:var(--r);background:var(--surface-2);aspect-ratio:1/1;max-width:100%}
.pat-cv canvas{width:100%;height:100%;display:block}
.pat-txt{display:flex;flex-direction:column;gap:9px;font-size:14.5px}
.pat-def{font-size:16px;color:var(--text)}
.pat-txt .lvl{color:var(--dim)}
.pat-ex{font-size:13.5px;color:var(--dim)}
.pat-ex b{font-family:var(--fm);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);font-weight:500;margin-right:6px}
.pat-checks{margin:0;padding-left:18px;font-size:13.5px;color:var(--dim);display:flex;flex-direction:column;gap:3px}
@media(max-width:640px){.pat{grid-template-columns:1fr}.pat-cv{max-width:280px}}
/* tour */
.tour{position:fixed;left:0;right:0;bottom:0;z-index:70;background:var(--surface);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom,0px);box-shadow:0 -18px 40px -24px rgba(0,0,0,.5)}
.tour-bar{height:3px;background:var(--line-soft)} .tour-bar i{display:block;height:100%;background:var(--attn);width:0;transition:width .4s cubic-bezier(.16,1,.3,1)}
.tour-in{max-width:1660px;margin:0 auto;padding:12px clamp(16px,3vw,44px);display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.tour-t{flex:1 1 320px;font-size:14.5px}
.tour-t b{font-family:var(--fm);font-size:11px;color:var(--attn);margin-right:8px;font-weight:500}
.tour-b{display:flex;gap:8px;align-items:center}
.tour-b .btn{min-height:40px;padding-inline:14px}
body.touring{padding-bottom:120px}
.tour-focus{outline:2px solid var(--attn);outline-offset:4px;border-radius:var(--r)}
/* footer */
.foot-in{display:grid;grid-template-columns:1.3fr 1fr .8fr;gap:28px}
.foot-in p{max-width:58ch;font-size:13.5px} .foot-in p + p{margin-top:8px}
.foot-note{color:var(--faint)}
.linkbtn{all:unset;cursor:pointer;color:var(--pos);text-decoration:underline;text-underline-offset:3px}
.linkbtn:focus-visible{outline:2px solid var(--attn)}
@media(max-width:860px){.foot-in{grid-template-columns:1fr}}
/* motion */
[data-paused="true"] #pauseBtn{border-color:var(--attn);color:var(--attn)}
@supports (animation-timeline: view()){
  @media (prefers-reduced-motion: no-preference){
    .js .fade{opacity:1;transform:none;transition:none;animation:rise linear both;animation-timeline:view();animation-range:entry 0% entry 55%}
    @keyframes rise{from{opacity:.28;transform:translateY(16px)}to{opacity:1;transform:none}}
  }
}
::view-transition-old(root),::view-transition-new(root){animation-duration:.26s}
@media (prefers-reduced-motion: reduce){ dialog[open]{animation:none} .tour-bar i{transition:none} }
.nf{padding-block:18vh 12vh;max-width:760px}
.nf h1{font-size:clamp(32px,5vw,56px);margin-block:14px 18px}
.nf .lede{color:var(--dim);max-width:52ch}
a.btn{display:inline-flex;align-items:center;text-decoration:none}

.hint{font-size:13px;color:var(--dim);line-height:1.5;margin-top:2px}
/* ============ v0.3 additions ============ */
#bgfx{position:fixed;inset:0;width:100vw;height:100vh;z-index:0;pointer-events:none}
main,footer{position:relative;z-index:1}
.story{margin:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.story .sp{display:flex;flex-direction:column;gap:6px}
.story canvas{width:100%;aspect-ratio:4/3;display:block;border:1px solid var(--line);border-radius:var(--r);background:var(--surface-2)}
.story p{font-size:14px;line-height:1.4;color:var(--text)}
.story p b{display:inline-grid;place-items:center;width:20px;height:20px;border-radius:50%;background:var(--attn);color:var(--ink);font-size:11px;margin-right:4px;font-family:var(--fm)}
@media(max-width:480px){.story{grid-template-columns:1fr}.story canvas{aspect-ratio:16/7}}
.words{border:1px solid var(--line-soft);border-radius:var(--r);background:var(--surface);padding:12px 14px}
.words h3{font-family:var(--fm);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);font-weight:500;margin-bottom:8px}
.words dl{margin:0;display:grid;gap:8px}
.words dt{font-family:var(--fd);font-weight:800;font-size:16px}
.words dd{margin:0;font-size:14.5px;color:var(--dim)}
[data-mode="explorer"] .note{display:none}
.bridge{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);padding:14px 16px}
.bridge h3{font-family:var(--fb);font-weight:600;font-size:15px;margin-bottom:6px;color:var(--attn)}
.bridge p,.bridge li{font-size:14.5px;color:var(--dim)}
.bridge ol{margin:10px 0 0;padding-left:20px;display:flex;flex-direction:column;gap:6px}
.bridge b{color:var(--text)}
.zoomseg button{padding:6px 8px}
@media(max-width:560px){.zoomseg{flex-wrap:wrap}.zoomseg button{flex:1 1 30%}}
#c9ab button,#c13gates button{min-height:36px}