/* Chikitsa — shared styles */
:root{
  --bg:#f7f8f8; --bg-2:#eef1f1; --panel:#ffffff; --ink:#0f1c1f; --ink-2:#3f5459;
  --muted:#65787d; --line:#dfe6e6; --line-2:#e8eded;
  --teal:#0e6b6b; --teal-2:#0a5252; --accent:#d97a34; --accent-2:#c26a28;
  --violet:#6a5acd; --good:#1c7a52; --warn:#b9761a; --bad:#b23b3b;
  --maxw:1120px; --r:14px;
  --shadow:0 1px 2px rgba(8,30,32,.05),0 10px 30px -18px rgba(8,30,32,.28);
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0a1416; --bg-2:#0e1c1f; --panel:#101f22; --ink:#eaf1f0; --ink-2:#b9cbc9;
    --muted:#8aa3a2; --line:#1e3236; --line-2:#182a2d;
    --teal:#4fd0c4; --teal-2:#7fe0d6; --accent:#e79457; --accent-2:#f0a973;
    --violet:#a99cf0; --good:#4bd08c; --warn:#e0a94e; --bad:#e77a7a;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 18px 44px -24px rgba(0,0,0,.7);
  }
}
:root[data-theme="dark"]{
  --bg:#0a1416; --bg-2:#0e1c1f; --panel:#101f22; --ink:#eaf1f0; --ink-2:#b9cbc9;
  --muted:#8aa3a2; --line:#1e3236; --line-2:#182a2d;
  --violet:#a99cf0; --good:#4bd08c; --warn:#e0a94e; --bad:#e77a7a;
  --teal:#4fd0c4; --teal-2:#7fe0d6; --accent:#e79457; --accent-2:#f0a973;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 18px 44px -24px rgba(0,0,0,.7);
}
:root[data-theme="light"]{
  --bg:#f7f8f8; --bg-2:#eef1f1; --panel:#ffffff; --ink:#0f1c1f; --ink-2:#3f5459;
  --muted:#65787d; --line:#dfe6e6; --line-2:#e8eded;
  --violet:#6a5acd; --good:#1c7a52; --warn:#b9761a; --bad:#b23b3b;
  --teal:#0e6b6b; --teal-2:#0a5252; --accent:#d97a34; --accent-2:#c26a28;
  --shadow:0 1px 2px rgba(8,30,32,.05),0 10px 30px -18px rgba(8,30,32,.28);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
  line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;margin:0}
.eyebrow{font-size:.74rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--teal)}
.muted{color:var(--muted)} .small{font-size:.78rem}
.center{text-align:center}

/* Announcement */
.announce{background:var(--teal);color:#eafffb}
:root[data-theme="dark"] .announce{color:#04201d}
.announce .wrap{display:flex;gap:14px;align-items:center;justify-content:center;
  padding:9px 22px;font-size:.86rem;flex-wrap:wrap;text-align:center}
.announce b{font-weight:700}
.announce a.link{border-bottom:1px solid currentColor;padding-bottom:1px;white-space:nowrap;opacity:.9}

/* Nav */
header.nav{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 82%,transparent);
  backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:-.02em}
.brand .mark{width:40px;height:40px;flex:none;display:block;filter:drop-shadow(0 6px 14px rgba(8,30,32,.18))}
.brand .brandtext{line-height:1.05}
.brand small{display:block;font-weight:500;font-size:.68rem;color:var(--muted);letter-spacing:.01em;margin-top:1px}
.brand small .dev{font-weight:600;color:var(--ink-2)}
nav.links{display:flex;gap:24px;align-items:center;font-size:.9rem;font-weight:500}
nav.links a{color:var(--ink-2)}
nav.links a:hover,nav.links a[aria-current="page"]{color:var(--teal)}
nav.links a[aria-current="page"]{font-weight:700}
.nav-right{display:flex;gap:10px;align-items:center}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.9rem;
  padding:10px 16px;border-radius:10px;border:1px solid transparent;cursor:pointer;transition:.15s}
.btn.primary{background:var(--teal);color:#fff}
:root[data-theme="dark"] .btn.primary{color:#04201d}
.btn.primary:hover{background:var(--teal-2)}
.btn.ghost{border-color:var(--line);color:var(--ink)}
.btn.ghost:hover{border-color:var(--teal);color:var(--teal)}
.theme-toggle,.menu-btn{background:none;border:1px solid var(--line);color:var(--ink-2);border-radius:9px;
  width:38px;height:38px;cursor:pointer;display:grid;place-items:center;font-size:1rem}
.theme-toggle:hover,.menu-btn:hover{border-color:var(--teal);color:var(--teal)}
.menu-btn{display:none}
@media (max-width:900px){
  .menu-btn{display:grid}
  nav.links{position:absolute;top:66px;left:0;right:0;flex-direction:column;align-items:flex-start;
    gap:6px;padding:14px 22px;background:var(--bg);border-bottom:1px solid var(--line);display:none}
  nav.links.open{display:flex}
  nav.links a{padding:6px 0;width:100%}
}

/* Hero + subhero */
.hero{padding:74px 0 40px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:-30% -10% auto -10%;height:520px;z-index:0;
  background:radial-gradient(60% 70% at 78% 20%,color-mix(in srgb,var(--teal) 20%,transparent),transparent 70%);pointer-events:none}
.hero .wrap{position:relative;z-index:1}
.hero h1{font-size:clamp(2.1rem,5.2vw,3.5rem);max-width:17ch;margin-top:16px}
.hero h1 .em{color:var(--teal)}
.hero p.lede{font-size:clamp(1.05rem,2vw,1.28rem);color:var(--ink-2);max-width:62ch;margin:20px 0 0}
.hero .cta{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
.hero .meta{display:flex;gap:26px;margin-top:40px;flex-wrap:wrap;font-size:.86rem;color:var(--muted)}
.hero .meta b{color:var(--ink);font-weight:700;font-size:1.4rem;letter-spacing:-.02em;display:block;line-height:1}
.hero .meta div{max-width:21ch}
.subhero{padding:54px 0 34px;position:relative;overflow:hidden;border-bottom:1px solid var(--line-2)}
.subhero::before{content:"";position:absolute;inset:-40% -10% auto 40%;height:460px;z-index:0;
  background:radial-gradient(50% 60% at 70% 10%,color-mix(in srgb,var(--teal) 16%,transparent),transparent 70%);pointer-events:none}
.subhero .wrap{position:relative;z-index:1}
.subhero h1{font-size:clamp(1.9rem,4.4vw,2.9rem);max-width:18ch;margin-top:14px}
.subhero p{color:var(--ink-2);font-size:1.08rem;max-width:60ch;margin:16px 0 0}
.crumb{font-size:.82rem;color:var(--muted)}
.crumb a:hover{color:var(--teal)}

section{padding:56px 0;border-top:1px solid var(--line-2)}
.sec-head{max-width:72ch}
.sec-head h2{font-size:clamp(1.5rem,3.2vw,2.1rem);margin-top:10px}
.sec-head p{color:var(--ink-2);margin:14px 0 0;font-size:1.05rem}
.tint{background:var(--bg-2)}

/* Cards / grids */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:30px}
@media (max-width:860px){.grid-3{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr}}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--shadow)}
.card h3{font-size:1.12rem}
.card p{color:var(--ink-2);margin:10px 0 0;font-size:.95rem}
.card ul{margin:14px 0 0;padding-left:0;list-style:none;font-size:.86rem;color:var(--muted)}
.card li{padding:5px 0 5px 20px;position:relative;border-top:1px solid var(--line-2)}
.card li::before{content:"›";position:absolute;left:4px;color:var(--teal);font-weight:800}
.ic{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;margin-bottom:16px;
  background:color-mix(in srgb,var(--teal) 12%,transparent);color:var(--teal);font-size:1.2rem}

/* Verticals */
.vcard{display:flex;flex-direction:column;position:relative;overflow:hidden}
.vcard .badge{position:absolute;top:18px;right:18px;font-size:.66rem;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;padding:4px 9px;border-radius:20px}
.badge.live{color:var(--good);background:color-mix(in srgb,var(--good) 14%,transparent)}
.badge.soon{color:var(--muted);background:color-mix(in srgb,var(--muted) 14%,transparent)}
.badge.explore{color:var(--violet);background:color-mix(in srgb,var(--violet) 14%,transparent)}
.vcard .go{margin-top:auto;padding-top:16px;font-weight:600;font-size:.88rem;color:var(--teal)}

/* Method loop */
.loop{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:34px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow)}
@media (max-width:760px){.loop{grid-template-columns:1fr 1fr}}
@media (max-width:460px){.loop{grid-template-columns:1fr}}
.loop .step{padding:22px 20px;border-right:1px solid var(--line-2);position:relative}
.loop .step:last-child{border-right:none}
.loop .step .n{font-size:.72rem;font-weight:700;color:var(--teal);letter-spacing:.12em}
.loop .step h4{margin:8px 0 6px;font-size:1rem}
.loop .step p{margin:0;font-size:.84rem;color:var(--muted)}

/* Flow diagram (steps) */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin-top:30px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow)}
@media (max-width:860px){.flow{grid-template-columns:1fr}}
.flow .step{padding:20px 18px;border-right:1px solid var(--line-2)}
@media (max-width:860px){.flow .step{border-right:none;border-bottom:1px solid var(--line-2)}}
.flow .step:last-child{border-right:none;border-bottom:none}
.flow .step .n{font-size:.72rem;font-weight:700;color:var(--teal);letter-spacing:.1em}
.flow .step h4{margin:8px 0 6px;font-size:.98rem}
.flow .step p{margin:0;font-size:.82rem;color:var(--muted)}

/* Charts */
.chart{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:24px 24px 18px;box-shadow:var(--shadow)}
.chart h3{font-size:1rem;letter-spacing:0}
.chart .sub{font-size:.82rem;color:var(--muted);margin:4px 0 0}
.bars{margin-top:20px;display:flex;flex-direction:column;gap:14px}
.bar-row{display:grid;grid-template-columns:140px 1fr;gap:14px;align-items:center}
@media (max-width:520px){.bar-row{grid-template-columns:110px 1fr}}
.bar-row .lbl{font-size:.82rem;color:var(--ink-2);font-weight:600}
.bar-row .lbl span{display:block;font-weight:400;color:var(--muted);font-size:.72rem}
.track{background:var(--bg-2);border-radius:8px;height:32px;position:relative;overflow:hidden;border:1px solid var(--line-2)}
.fill{height:100%;border-radius:7px;display:flex;align-items:center;justify-content:flex-end;
  padding-right:10px;color:#fff;font-weight:700;font-size:.8rem;min-width:44px}
:root[data-theme="dark"] .fill{color:#04201d}
.fill.teal{background:linear-gradient(90deg,var(--teal-2),var(--teal))}
.fill.accent{background:linear-gradient(90deg,#9a5a2a,var(--accent))}
.fill.good{background:linear-gradient(90deg,var(--good),color-mix(in srgb,var(--good) 60%,var(--teal)))}
.fill.violet{background:linear-gradient(90deg,#4c40a8,var(--violet))}
.fill.grey{background:linear-gradient(90deg,#8494974d,var(--muted));color:var(--ink)}
.chart .note{margin-top:16px;font-size:.78rem;color:var(--muted);border-top:1px dashed var(--line);padding-top:12px}
.chart .grp-title{font-size:.76rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:16px 0 4px}
.cal-svg{width:100%;height:auto;margin-top:14px}
.legend{display:flex;gap:18px;flex-wrap:wrap;margin-top:14px;font-size:.78rem;color:var(--ink-2)}
.legend span{display:inline-flex;align-items:center;gap:7px}
.legend i{width:14px;height:3px;border-radius:2px;display:inline-block}

.two{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:34px;align-items:start}
@media (max-width:860px){.two{grid-template-columns:1fr}}
.copyblock .tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,transparent);padding:3px 9px;border-radius:20px;margin-bottom:14px}
.copyblock h3{font-size:1.25rem;margin-bottom:12px}
.copyblock p{color:var(--ink-2);margin:0 0 12px}

/* Hypothesis ledger */
.ledger{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:32px}
@media (max-width:820px){.ledger{grid-template-columns:1fr}}
.hyp{background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--muted);
  border-radius:12px;padding:22px 22px;box-shadow:var(--shadow)}
.hyp.proven{border-left-color:var(--good)} .hyp.rejected{border-left-color:var(--bad)}
.hyp.open{border-left-color:var(--warn)}
.hyp .htag{font-size:.68rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;display:inline-flex;
  align-items:center;gap:6px;padding:3px 9px;border-radius:20px;margin-bottom:12px}
.hyp.proven .htag{color:var(--good);background:color-mix(in srgb,var(--good) 14%,transparent)}
.hyp.rejected .htag{color:var(--bad);background:color-mix(in srgb,var(--bad) 14%,transparent)}
.hyp.open .htag{color:var(--warn);background:color-mix(in srgb,var(--warn) 14%,transparent)}
.hyp h4{font-size:1.02rem;margin:0 0 8px}
.hyp p{margin:0;font-size:.9rem;color:var(--ink-2)}
.hyp .verdict{margin-top:12px;font-size:.82rem;color:var(--muted);border-top:1px solid var(--line-2);padding-top:10px}

/* Chips */
.readers{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:8px 15px;
  font-size:.82rem;display:flex;align-items:center;gap:8px;box-shadow:var(--shadow)}
.chip .dot{width:8px;height:8px;border-radius:50%;background:var(--teal)}
.chip .dot.g{background:var(--good)} .chip .dot.o{background:var(--accent)} .chip .dot.w{background:var(--warn)}

/* Stats */
.evid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:30px}
@media (max-width:860px){.evid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.evid{grid-template-columns:1fr}}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow)}
.stat .big{font-size:2rem;font-weight:800;letter-spacing:-.03em;color:var(--teal)}
.stat h4{margin:8px 0 6px;font-size:.92rem}
.stat p{margin:0;font-size:.8rem;color:var(--muted)}

/* Contact / form */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;margin-top:6px;align-items:start}
@media (max-width:820px){.contact-grid{grid-template-columns:1fr;gap:30px}}
.contact-info h2{font-size:clamp(1.5rem,3.2vw,2.1rem);margin-top:10px}
.contact-info p{color:var(--ink-2);margin:14px 0 0}
.contact-methods{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.contact-methods a{display:flex;align-items:center;gap:13px;font-weight:600;color:var(--ink)}
.contact-methods a:hover{color:var(--teal)}
.contact-methods .cic{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;
  background:color-mix(in srgb,var(--teal) 12%,transparent);color:var(--teal);flex:none}
.contact-form{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--shadow)}
.contact-form label{display:block;font-size:.8rem;font-weight:600;color:var(--ink-2);margin-bottom:15px}
.contact-form input,.contact-form select,.contact-form textarea{
  width:100%;margin-top:6px;padding:11px 13px;border:1px solid var(--line);border-radius:10px;
  background:var(--bg);color:var(--ink);font:inherit;font-size:.92rem;font-weight:400}
.contact-form textarea{resize:vertical;min-height:96px}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{
  outline:none;border-color:var(--teal);box-shadow:0 0 0 3px color-mix(in srgb,var(--teal) 18%,transparent)}
.contact-form .row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:480px){.contact-form .row2{grid-template-columns:1fr}}
.contact-form button{width:100%;justify-content:center;margin-top:4px}
.form-status{margin:14px 0 0;font-size:.86rem;font-weight:600}
.form-status.ok{color:var(--good)} .form-status.err{color:var(--bad)}

/* Final CTA */
.final{background:linear-gradient(150deg,var(--teal),var(--teal-2));text-align:center}
.final h2{font-size:clamp(1.6rem,3.4vw,2.3rem);color:#fff;max-width:24ch;margin:0 auto}
:root[data-theme="dark"] .final h2{color:#04201d}
.final p{max-width:56ch;margin:16px auto 0;color:#eafffb;opacity:.95}
:root[data-theme="dark"] .final p{color:#04201d;opacity:.85}
.final .cta{display:flex;gap:12px;justify-content:center;margin-top:28px;flex-wrap:wrap}
.final .btn.primary{background:#fff;color:var(--teal-2)}
.final .btn.ghost{border-color:rgba(255,255,255,.5);color:#fff}
:root[data-theme="dark"] .final .btn.ghost{border-color:rgba(4,32,29,.4);color:#04201d}

footer{padding:44px 0;border-top:1px solid var(--line-2);font-size:.86rem;color:var(--muted)}
footer .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:flex-start}
footer a:hover{color:var(--teal)}
footer .fnav{display:flex;gap:18px;flex-wrap:wrap;margin-top:8px}
.disc{max-width:62ch;font-size:.78rem;line-height:1.5;margin-top:10px}

/* Intricate figures */
.figure{border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);overflow:hidden;background:var(--panel)}
.figure.xray{background:#081014;border-color:#12242a}
.figure svg{display:block;width:100%;height:auto}
.figcap{padding:13px 18px;font-size:.8rem;color:var(--muted);border-top:1px solid var(--line-2);background:var(--panel)}
.fig-legend{display:flex;flex-wrap:wrap;gap:12px 22px;margin-top:16px;font-size:.8rem;color:var(--ink-2)}
.fig-legend span{display:inline-flex;align-items:center;gap:8px}
.lg-box{width:20px;height:14px;border-radius:3px;display:inline-block;flex:none}
.lg-box.dash{border:1.5px dashed var(--accent)}
.lg-box.solid{border:1.6px solid var(--good);background:color-mix(in srgb,var(--good) 20%,transparent)}
.lg-dot{width:11px;height:11px;border-radius:50%;flex:none}
.figwrap{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:center;margin-top:30px}
@media (max-width:880px){.figwrap{grid-template-columns:1fr;gap:24px}}

/* Reliability matrix heatmap */
.matrix{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:6px;min-width:540px}
.matrix .mh{font-size:.68rem;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.03em;padding:2px 4px 8px;align-self:end;text-align:center;line-height:1.25}
.matrix .rn{font-size:.86rem;font-weight:600;color:var(--ink-2);display:flex;align-items:center;padding-right:8px}
.mcell{height:44px;border-radius:8px;display:grid;place-items:center;font-size:.72rem;font-weight:800;border:1px solid transparent}
.mcell.hi{background:color-mix(in srgb,var(--good) 24%,transparent);color:var(--good);border-color:color-mix(in srgb,var(--good) 40%,transparent)}
.mcell.mid{background:color-mix(in srgb,var(--warn) 24%,transparent);color:var(--warn);border-color:color-mix(in srgb,var(--warn) 40%,transparent)}
.mcell.lo{background:color-mix(in srgb,var(--bad) 22%,transparent);color:var(--bad);border-color:color-mix(in srgb,var(--bad) 38%,transparent)}
.mcell.na{background:var(--bg-2);color:var(--muted)}

/* SVG diagram helpers */
.diagram{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow);overflow-x:auto}
.diagram svg{display:block;width:100%;height:auto;min-width:520px}
.dg-box{fill:var(--panel);stroke:var(--line)}
.dg-accent{fill:color-mix(in srgb,var(--teal) 12%,transparent);stroke:var(--teal)}
.dg-label{fill:var(--ink);font:600 13px -apple-system,system-ui,sans-serif}
.dg-sub{fill:var(--muted);font:400 11px -apple-system,system-ui,sans-serif}
.dg-line{stroke:var(--muted);stroke-width:1.6;fill:none}
.dg-arrow{fill:var(--muted)}