/* =========================================================================
   elixir — Direction C (bone & ink) design system (shared)
   Council-of-15 converged spec. British English. Self-hosted fonts via /fonts.css.
   No #000 / #FFF, no indigo/violet. Copper + ink-faint are DECORATIVE only (never text).
   ========================================================================= */

:root{
  /* GROUND — cool bone, graph-paper register (Direction: Field Notebook · C) */
  --paper:#EDEEEA; --paper-deep:#E5E7E1; --paper-edge:#DDE0D8;
  /* INK — cool charcoal */
  --ink:#1A1E1B; --ink-soft:#39403B; --ink-meta:#5C635C;   /* meta = smallest text colour */
  --ink-faint:#8A9088;                                       /* DECORATIVE ONLY — never text */
  /* RULES + graph grid */
  --rule:#D6D8D0; --rule-soft:#E2E4DD; --field-border:#6E746C; --grid:#DCDED7;
  /* ACCENT — oxidised teal (links + all text accents) + brass (decorative/data only) */
  --teal:#1F4E4A; --teal-deep:#163A37;
  --copper:#C68A3E; --copper-bright:#C68A3E;                /* brand dot + decorative ≥24px / data only */
  /* DATA-VIZ status (charts only, never UI chrome) */
  --ok:#2F6E50; --amber:#9A6B12; --flag:#A8402F; --error-text:#9A2D22;
  /* TYPE */
  --serif:"Instrument Serif",Georgia,"Times New Roman",serif;
  --sans:"Geist",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:"Geist Mono",ui-monospace,"SF Mono",Menlo,monospace;
  /* LAYOUT */
  --maxw:1100px; --gutter:clamp(1.6rem,6vw,5.5rem);
  --sect:clamp(4.5rem,9vw,7.5rem);
  --ease:cubic-bezier(.22,.61,.36,1);
  --selection:rgba(31,78,74,.15);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-padding-top:90px}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}

body{
  font-family:var(--sans); color:var(--ink);
  background-color:var(--paper);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:32px 32px;
  line-height:1.6; font-weight:400; font-size:clamp(1rem,.5vw + .95rem,1.0625rem);
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  position:relative; overflow-x:hidden; min-height:100vh; min-height:100svh;
  display:flex; flex-direction:column;
  font-feature-settings:"kern" 1;
}
/* Fine paper grain — tactile, human-crafted. Decorative, fixed, behind content. */
body::after{
  content:""; position:fixed; inset:0; z-index:1; pointer-events:none;
  opacity:.12; mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.86' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.045'/%3E%3C/svg%3E");
}

a{color:var(--teal);text-decoration:none}
::selection{background:var(--selection);color:var(--ink)}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:2px}
img,svg,canvas{max-width:100%;display:block}
strong,b{font-weight:600;color:var(--ink)}

/* ---- Skip link ---- */
.skip{
  position:absolute;left:-9999px;top:0;z-index:300;
  background:var(--ink);color:var(--paper);padding:.7rem 1.1rem;border-radius:0 0 6px 0;
  font-family:var(--mono);font-size:.8rem;letter-spacing:.04em;
}
.skip:focus{left:0}

/* ---- Type scale ---- */
h1,h2,h3,h4{font-family:var(--serif);font-weight:400;color:var(--ink);line-height:1.08;letter-spacing:-.018em}
h1{font-size:clamp(2.4rem,6vw + .4rem,4.6rem);line-height:1.04;letter-spacing:-.022em;max-width:18ch}
h2{font-size:clamp(1.9rem,3.4vw + .6rem,2.9rem);max-width:22ch}
h3{font-size:clamp(1.3rem,1.2vw + 1.05rem,1.6rem)}
h1 em,h2 em,h3 em{font-style:italic;font-weight:400;font-synthesis:none}
h1 .ox,h2 .ox{color:var(--teal);font-style:normal}
p{max-width:66ch}
.lede{font-size:clamp(1.08rem,.6vw + 1rem,1.22rem);line-height:1.62;color:var(--ink-soft);max-width:56ch}
.lede strong{color:var(--ink)}
.tnum{font-variant-numeric:tabular-nums}

/* ---- Eyebrow (mono, leading rule) ---- */
.eyebrow{
  font-family:var(--mono);font-size:.74rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--ink-meta);display:inline-flex;align-items:center;gap:.7rem;margin-bottom:clamp(1.2rem,2.4vw,1.8rem);
}
.eyebrow::before{content:"";width:2.2rem;height:1px;background:var(--teal);opacity:.55;flex:none}

/* ---- Layout shell ---- */
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
main{flex:1;position:relative;z-index:2}
section{padding-block:var(--sect)}
.section-line{border-top:1px solid var(--rule);position:relative}
.section-line::before{content:"";position:absolute;top:-6px;left:50%;transform:translateX(-50%);width:44px;height:12px;background:center/contain no-repeat url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='44' height='12'%3E%3Cpath d='M1 10 C10 10 13 9 18 6 C21 4 20.5 2.5 22 2.5 C24 2.5 27 8 32 9.6 C37 11 40 10 43 10' fill='none' stroke='%231F4E4A' stroke-width='1.2'/%3E%3C/svg%3E")}
.lead-rule{border-left:2px solid var(--teal);padding-left:1.1rem}

/* ---- Buttons ---- */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;font-family:var(--sans);font-weight:600;
  font-size:.95rem;line-height:1;cursor:pointer;border:1px solid transparent;
  padding:.85rem 1.4rem;border-radius:4px;transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
  min-height:44px;
}
.btn-primary{background:var(--teal);color:var(--paper);border-color:var(--teal)}
.btn-primary:hover{background:var(--teal-deep);border-color:var(--teal-deep)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--rule);border-radius:6px}
.btn-ghost:hover{border-color:var(--ink);background:var(--paper-deep)}
.inline-link{color:var(--teal);border-bottom:1px solid var(--teal);padding-bottom:1px;font-weight:500}
.inline-link:hover{color:var(--ink);border-color:var(--ink)}
.arrow::after{content:" →";font-family:var(--mono)}

/* ---- Header / nav (sticky, paper, hairline) ---- */
.site-head{position:sticky;top:0;z-index:200;background:rgba(237,238,234,.88);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--rule)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:1.2rem;padding-block:.85rem}
.brand{display:flex;align-items:center;gap:.42rem;font-family:var(--serif);font-weight:400;font-synthesis:none;font-size:1.5rem;letter-spacing:-.02em;color:var(--ink);line-height:1}
.brand .dot{width:.4em;height:.4em;border-radius:50%;background:var(--copper);align-self:flex-end;margin-bottom:.18em;flex:none}
.brand:hover{color:var(--ink)}
.nav-links{display:flex;align-items:center;gap:1.5rem}
.nav-links a:not(.btn),.nav-dd-btn{font-family:var(--sans);font-size:.95rem;color:var(--ink-soft);transition:color .2s}
.nav-links a:not(.btn):hover,.nav-links a:not(.btn)[aria-current="page"]{color:var(--ink)}
.nav-links a:not(.btn)[aria-current="page"]{font-weight:600}
.nav-links a.btn-primary{color:var(--paper)}
.nav-cta{margin-left:.3rem}

/* dropdown */
.nav-dd{position:relative;display:inline-flex}
.nav-dd-btn{background:none;border:0;cursor:pointer;display:inline-flex;align-items:center;gap:6px;padding:0;font-weight:400}
.nav-dd-btn:hover,.nav-dd-btn[aria-current="page"]{color:var(--ink)}
.nav-dd-btn[aria-current="page"]{font-weight:600}
.nav-dd-btn .caret{font-size:.7em;transition:transform .25s}
.nav-dd-btn[aria-expanded="true"] .caret{transform:rotate(180deg)}
.nav-dd-menu{
  position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%);min-width:260px;
  background:var(--paper);border:1px solid var(--rule);border-radius:8px;padding:8px;display:none;
  box-shadow:0 24px 50px -28px rgba(26,23,20,.45);z-index:210;
}
.nav-dd-menu::before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
.nav-dd-menu.open{display:block}
.nav-dd-menu a{display:block;padding:.55rem .7rem;border-radius:6px;color:var(--ink-soft);font-size:.9rem;white-space:nowrap}
.nav-dd-menu a:hover{background:var(--paper-deep);color:var(--ink)}
.nav-dd-menu a:focus-visible{background:var(--paper-deep);color:var(--ink);outline:2px solid var(--teal);outline-offset:-2px}
.nav-dd-menu a[aria-current="page"]{color:var(--teal);font-weight:600}
.nav-dd-all{color:var(--teal)!important;border-top:1px solid var(--rule);margin-top:6px;padding-top:.7rem!important}
/* dropdown visibility is JS-controlled (hover-intent + click + keyboard) via .open */

/* hamburger + mobile panel */
.nav-toggle{display:none;background:none;border:1px solid var(--rule);border-radius:6px;width:44px;height:44px;cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:"";display:block;width:20px;height:1.5px;background:var(--ink);transition:transform .25s,opacity .2s}
.nav-toggle span{position:relative}
.nav-toggle span::before{position:absolute;top:-6px}
.nav-toggle span::after{position:absolute;top:6px}
.mobile-menu{display:none;border-top:1px solid var(--rule);background:var(--paper)}
.mobile-menu.open{display:block}
.mobile-menu .wrap{display:flex;flex-direction:column;gap:.1rem;padding-block:1rem 1.6rem}
.mobile-menu a{padding:.7rem .2rem;color:var(--ink-soft);font-size:1.02rem;border-bottom:1px solid var(--rule-soft)}
.mobile-menu a:hover{color:var(--ink)}
.mm-label{font-family:var(--mono);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-meta);margin:1.1rem 0 .3rem}
.mobile-menu .btn{margin-top:1.1rem;justify-content:center}
@media (max-width:860px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
}

/* ---- Breadcrumb ---- */
.crumb{font-family:var(--mono);font-size:.74rem;letter-spacing:.04em;color:var(--ink-meta);padding-top:1.6rem}
.crumb a{color:var(--ink-meta)}
.crumb a:hover{color:var(--ink)}
.crumb .sep{opacity:.5;margin:0 .4rem}

/* ---- Credibility strip ---- */
.cred{border-block:1px solid var(--rule);background:var(--paper-deep)}
.cred .wrap{display:flex;flex-wrap:wrap;gap:.6rem 1.8rem;padding-block:1rem;font-family:var(--mono);font-size:.72rem;letter-spacing:.04em;color:var(--ink-meta);text-transform:uppercase}
.cred span{display:inline-flex;align-items:center;gap:.5rem}
.cred span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--copper);flex:none}

/* ---- Panels / cards ---- */
.grid{display:grid;gap:1.1rem}
@media (min-width:680px){.grid-2{grid-template-columns:repeat(2,1fr)}}
@media (min-width:860px){.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (min-width:980px){.grid-4{grid-template-columns:repeat(4,1fr)}}
.panel{position:relative;background:var(--paper-deep);border:1px solid var(--rule);border-radius:4px;padding:1.5rem 1.5rem 1.6rem;box-shadow:inset 0 1px 0 rgba(255,255,255,.5);transition:border-color .25s,transform .25s var(--ease)}
.panel:hover{border-color:var(--ink-faint);transform:translateY(-2px)}
.card-link{display:flex;flex-direction:column;gap:.5rem;color:inherit}
.card-link h3{font-size:1.18rem}
.card-link .kicker{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-meta)}
.card-link p{font-size:.92rem;color:var(--ink-soft);max-width:none}
.card-link .more{margin-top:auto;color:var(--teal);font-weight:600;font-size:.88rem;font-family:var(--mono)}
.card-icon{width:34px;height:34px;color:var(--ink-soft)}
.panel:hover .card-icon{color:var(--teal)}

/* ---- Citation chip + caveat ---- */
.cite{display:inline-flex;align-items:center;gap:.4rem;font-family:var(--mono);font-size:.7rem;letter-spacing:.02em;color:var(--teal);border:1px solid var(--rule);border-radius:2px;padding:.25rem .5rem;background:var(--paper)}
.cite:hover{border-color:var(--teal)}
.cite::before{content:"↗";font-size:.85em;opacity:.7}
.cite.mfr{color:var(--ink-meta)}
.cite.mfr::before{content:"●";font-size:.6em}
span.cite::before{content:none}
.caveat{margin-top:.9rem;border-left:2px solid var(--rule);padding:.6rem 0 .6rem .9rem;background:var(--paper)}
.caveat .lbl{font-family:var(--mono);font-size:.64rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-meta);display:block;margin-bottom:.25rem}
.caveat p{font-size:.86rem;color:var(--ink-soft);max-width:62ch;margin:0}

/* ---- Citation source popover (in-context detail on hover/focus; JS-enhanced, info also in References) ---- */
.cite[data-design]{cursor:help}
.cite-pop{position:absolute;z-index:60;max-width:min(340px,calc(100vw - 2rem));background:var(--paper);border:1px solid var(--rule);border-radius:4px;padding:.7rem .8rem;box-shadow:0 8px 26px rgba(16,26,20,.12);opacity:0;transform:translateY(4px);transition:opacity .14s ease,transform .14s ease}
.cite-pop.in{opacity:1;transform:none}
.cite-pop dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:.3rem .7rem;align-items:baseline}
.cite-pop dt{font-family:var(--mono);font-size:.58rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-meta);white-space:nowrap}
.cite-pop dd{margin:0;font-size:.8rem;line-height:1.4;color:var(--ink-soft)}
.cite-pop .src{margin-top:.55rem;padding-top:.5rem;border-top:1px solid var(--rule);font-family:var(--mono);font-size:.62rem;letter-spacing:.04em;color:var(--ink-meta)}
.cite-pop .caret{position:absolute;width:9px;height:9px;background:var(--paper);transform:rotate(45deg)}
.cite-pop .caret.below{bottom:-5px;border-right:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.cite-pop .caret.above{top:-5px;border-left:1px solid var(--rule);border-top:1px solid var(--rule)}

/* ---- Signature-figure pointer probe (interrogable curve; readout is information, kept under reduced-motion) ---- */
.sig[data-probe]{cursor:crosshair}
.sig-probe{transition:opacity .12s ease}
.sig-probe *{pointer-events:none}
.sig .probe-x{stroke:var(--ink-meta);stroke-width:1;stroke-dasharray:4 4;opacity:.65}
.sig .probe-dot{fill:var(--copper);stroke:var(--paper);stroke-width:2}
.sig .probe-read{fill:var(--teal);font-family:var(--mono);font-size:19px;letter-spacing:.02em}
.sig .probe-sub{fill:var(--ink-meta);font-size:14px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---- Figure / data-viz ---- */
.figure{margin:1.6rem 0;border:1px solid var(--rule);border-radius:4px;background:var(--paper-deep);overflow:hidden}
.figure-head{padding:1.1rem 1.3rem .2rem}
.figure-head .ftitle{font-family:var(--serif);font-size:1.2rem;color:var(--ink)}
.figure-head .fsub{font-size:.88rem;color:var(--ink-soft);margin-top:.2rem}
.figure-body{padding:.6rem 1.3rem 1.1rem}
.figure canvas{width:100%;height:auto}
.figure-foot{padding:0 1.3rem 1.2rem;display:flex;flex-wrap:wrap;gap:.6rem;align-items:center}
.viz-legend{display:flex;flex-wrap:wrap;gap:.4rem 1.1rem;font-family:var(--mono);font-size:.7rem;color:var(--ink-meta);margin-top:.4rem}
.viz-legend span{display:inline-flex;align-items:center;gap:.4rem}
.swatch{width:16px;height:0;border-top-width:2px;border-top-style:solid;flex:none}
.swatch.copper{border-color:var(--copper-bright)}
.swatch.ink{border-color:var(--ink)}
.swatch.faint{border-top-style:dashed;border-color:var(--ink-faint)}
.swatch.flag{border-color:var(--flag)}
.data-text{font-family:var(--mono);font-size:.82rem;color:var(--ink-soft)}
.illus{font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-meta)}
.tagchip{display:inline-block;font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;padding:.18rem .45rem;border-radius:2px;border:1px solid var(--rule);color:var(--ink-meta)}
.tagchip.ruo{color:var(--flag);border-color:var(--flag)}
.tagchip.pr{color:var(--ok);border-color:var(--ok)}

/* ---- Definition / stat rows ---- */
.stat{font-family:var(--serif);font-size:clamp(2rem,4vw,3rem);color:var(--ink);line-height:1}
.stat .unit{font-family:var(--mono);font-size:.4em;color:var(--ink-meta);letter-spacing:.02em}
.kv{display:flex;flex-wrap:wrap;gap:.3rem 1rem;font-family:var(--mono);font-size:.78rem;color:var(--ink-meta)}

/* ---- Forms ---- */
.field{display:flex;flex-direction:column;gap:.4rem;margin-bottom:1.1rem}
.field label{font-family:var(--mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-meta)}
.field .req{color:var(--teal)}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-meta);opacity:1}
.field input,.field select,.field textarea{
  font-family:var(--sans);font-size:1rem;color:var(--ink);background:var(--paper);
  border:1px solid var(--field-border);border-radius:3px;padding:.7rem .8rem;width:100%;
}
.field textarea{min-height:140px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--teal);outline-offset:1px;border-color:var(--teal)}
.field [aria-invalid="true"]{border-color:var(--error-text)}
.field .err{font-family:var(--sans);font-size:.82rem;color:var(--error-text);min-height:0}
.form-card{background:var(--paper-deep);border:1px solid var(--rule);border-radius:6px;padding:clamp(1.4rem,3vw,2.2rem);box-shadow:0 18px 44px -30px rgba(26,23,20,.4)}
.form-note{font-size:.84rem;color:var(--ink-meta);margin-top:.6rem}
.success{background:var(--paper-deep);border:1px solid var(--ok);border-radius:6px;padding:1.6rem;display:none}
.success.show{display:block}
.alert{background:var(--paper);border:1px solid var(--error-text);border-radius:4px;padding:.8rem 1rem;color:var(--error-text);font-size:.88rem;margin-bottom:1rem;display:none}
.alert.show{display:block}

/* ---- Footer ---- */
.site-foot{position:relative;z-index:2;border-top:1px solid var(--rule);background:var(--paper-deep);margin-top:var(--sect)}
.site-foot .wrap{padding-block:clamp(2.4rem,5vw,3.4rem) 1.6rem}
.foot-grid{display:grid;gap:2rem 2.4rem;grid-template-columns:1fr}
@media (min-width:680px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr}}
.foot-col h4{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-meta);font-weight:400;margin-bottom:.9rem}
.foot-col a{display:block;color:var(--ink-soft);font-size:.9rem;padding:.22rem 0}
.foot-col a:hover{color:var(--ink)}
.foot-brand .brand{font-size:1.35rem;margin-bottom:.5rem}
.foot-brand p{font-size:.88rem;color:var(--ink-soft);max-width:34ch}
.foot-partner{font-family:var(--mono);font-size:.72rem;color:var(--ink-meta);margin-top:.8rem}
.foot-bar{margin-top:2.4rem;padding-top:1.2rem;border-top:1px solid var(--rule);display:flex;flex-wrap:wrap;justify-content:space-between;gap:.6rem 1.4rem;font-family:var(--mono);font-size:.68rem;letter-spacing:.04em;color:var(--ink-meta)}
.foot-bar a{color:var(--ink-meta)}.foot-bar a:hover{color:var(--ink)}
.foot-legal{display:flex;flex-wrap:wrap;gap:.4rem 1.2rem}
.foot-note{margin:2.4rem 0 0;padding-top:1.2rem;border-top:1px solid var(--rule);font-family:var(--mono);font-size:.68rem;line-height:1.55;letter-spacing:.03em;color:var(--ink-meta);max-width:78ch}
.foot-note + .foot-bar{margin-top:1rem;border-top:0;padding-top:0}

/* ---- Reveal-on-enter (content visible by default; JS adds .in for the lift) ---- */
.reveal{opacity:1;transform:none}
.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.js .reveal.in{opacity:1;transform:none}

/* ---- Scroll progress ---- */
.progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--copper);z-index:250;transition:width .1s linear}

/* ---- Hero ---- */
.hero{padding-top:clamp(2.6rem,6vw,4.4rem);padding-bottom:clamp(2.4rem,5vw,3.6rem)}
.hero-meta{margin-top:clamp(1.8rem,3.5vw,2.6rem);display:flex;flex-wrap:wrap;gap:.5rem 2rem;font-family:var(--mono);font-size:.74rem;color:var(--ink-meta)}
.hero-meta b{color:var(--ink-soft);font-weight:500}
.hero-canvas-wrap{margin-top:clamp(2rem,4vw,3rem);border:1px solid var(--rule);border-radius:4px;background:var(--paper-deep);overflow:hidden}

/* ---- Signature motif: technical thrombin curve (hero) ---- */
.hero-figure{margin-top:clamp(2rem,4vw,3rem);border:1px solid var(--rule);border-radius:2px;background:var(--paper-deep);padding:14px 18px 10px}
.hero-figure .illus{margin-top:6px}
.sig{display:block;width:100%;height:auto}
.sig .axis,.sig .tick{stroke:var(--ink-faint);stroke-width:1}
.sig .guide{stroke:var(--ink);stroke-width:1;stroke-dasharray:4 4;opacity:.45}
.sig .curve{fill:none;stroke:var(--teal);stroke-width:1.6;stroke-linecap:round}
.sig .peak{fill:none;stroke:var(--teal);stroke-width:1.4;transform-box:fill-box;transform-origin:center}
.sig text{font-family:var(--mono);font-size:14px;fill:var(--ink-meta)}
@media (max-width:760px){.sig text{font-size:22px}}
@media (max-width:480px){.sig text{font-size:34px}}
.sig .lblk{fill:var(--ink)}
.sig .bar{fill:var(--teal)}
.sig .bar-faint{fill:var(--ink-faint)}
.sig .dot{fill:var(--copper)}
.sig .ring{fill:none;stroke:var(--teal);stroke-width:1.4}
.sig .flagline{stroke:var(--flag);stroke-width:1.2;stroke-dasharray:5 4}
.sig .zone{fill:var(--flag);opacity:.10}
@media (prefers-reduced-motion:no-preference){
  .sig .curve{stroke-dasharray:1;stroke-dashoffset:1;animation:sigdraw 1.6s var(--ease) .25s forwards}
}
@keyframes sigdraw{to{stroke-dashoffset:0}}

/* ---- Misc ---- */
.muted{color:var(--ink-soft)}
.small{font-size:.88rem}
.stack>*+*{margin-top:1rem}
.measure{max-width:62ch}
hr.rule{border:0;border-top:1px solid var(--rule);margin:var(--sect) 0 0}
ul.ticks{list-style:none;display:flex;flex-direction:column;gap:.6rem}
ul.ticks li{position:relative;padding-left:1.4rem;color:var(--ink-soft)}
ul.ticks li::before{content:"";position:absolute;left:0;top:.62em;width:.7rem;height:1px;background:var(--teal)}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .js .reveal{opacity:1;transform:none}
  .progress{display:none}
}

/* ---- Cookie consent ---- */
.cookie-banner{position:fixed;left:0;right:0;bottom:0;z-index:1000;background:var(--paper);border-top:2px solid var(--teal);box-shadow:0 -8px 30px rgba(22,26,23,.10)}
.cookie-banner[hidden]{display:none}
.cookie-banner-in{max-width:1120px;margin:0 auto;padding:1rem clamp(1rem,4vw,2rem);display:flex;gap:1rem 1.5rem;align-items:center;flex-wrap:wrap}
.cookie-copy{flex:1 1 380px;margin:0;font-size:.9rem;line-height:1.5;color:var(--ink-soft)}
.cookie-copy a{color:var(--teal);text-decoration:underline;text-underline-offset:2px}
.cookie-actions{display:flex;gap:.6rem;flex-wrap:wrap}
.cookie-actions .btn{padding:.5rem 1rem;font-size:.82rem}
.cookie-modal{position:fixed;inset:0;z-index:1001;background:rgba(22,26,23,.55);display:flex;align-items:center;justify-content:center;padding:1.2rem}
.cookie-modal[hidden]{display:none}
.cookie-modal-card{background:var(--paper);border:1px solid var(--paper-edge);max-width:540px;width:100%;max-height:90vh;overflow:auto;padding:clamp(1.4rem,3vw,2rem);box-shadow:0 20px 60px rgba(22,26,23,.28)}
.cookie-modal-h{font-family:var(--serif);font-weight:400;font-size:1.6rem;margin:0}
.cookie-modal-sub{margin:.5rem 0 1.2rem;color:var(--ink-meta);font-size:.9rem}
.cookie-row{display:flex;gap:1rem;align-items:flex-start;justify-content:space-between;padding:.9rem 0;border-top:1px solid var(--paper-edge)}
.cookie-row strong{display:block;font-size:.95rem;color:var(--ink)}
.cookie-row span{display:block;font-size:.82rem;color:var(--ink-meta);margin-top:.2rem;max-width:44ch}
.cookie-fixed{font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);white-space:nowrap;padding-top:.15rem}
.cookie-modal-actions{display:flex;gap:.6rem;justify-content:flex-end;margin-top:1.4rem;flex-wrap:wrap}
.cookie-switch{position:relative;display:inline-block;width:44px;height:24px;flex:none}
.cookie-switch input{position:absolute;opacity:0;width:0;height:0}
.cookie-switch span{position:absolute;inset:0;background:var(--paper-edge);border:1px solid var(--ink-faint);border-radius:24px;cursor:pointer;transition:background .15s}
.cookie-switch span::before{content:"";position:absolute;width:16px;height:16px;left:3px;top:3px;background:#fff;border-radius:50%;transition:transform .15s}
.cookie-switch input:checked+span{background:var(--teal);border-color:var(--teal)}
.cookie-switch input:checked+span::before{transform:translateX(20px)}
.cookie-switch input:focus-visible+span{outline:2px solid var(--teal);outline-offset:2px}
@media (max-width:560px){.cookie-actions{width:100%}.cookie-actions .btn{flex:1}}

/* ---- Cookie policy table ---- */
.ctable-wrap{overflow-x:auto;margin-top:1.4rem;border:1px solid var(--paper-edge)}
.ctable{width:100%;border-collapse:collapse;font-size:.85rem;min-width:560px}
.ctable th,.ctable td{text-align:left;padding:.7rem .8rem;border-bottom:1px solid var(--paper-edge);vertical-align:top;color:var(--ink-soft)}
.ctable thead th{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-meta);background:var(--paper-deep)}
.ctable tbody tr:last-child td{border-bottom:none}
.ctable td code{font-family:var(--mono);font-size:.8rem;color:var(--ink)}