:root{
  --bg:#f2f5f8; --bg2:#e7edf3; --card:#ffffff; --ink:#172230; --ink2:#4b5a6b; --ink3:#7b8795; --line:#e1e7ee;
  --acc:#1b6d8f; --acc2:#2a97b8; --acc-soft:#e6f2f7; --acc-ink:#135a76;
  --stop:#c43d35; --stop-soft:#fbeae8; --stop-ink:#8e2a24;
  --warn:#c9771a; --warn-soft:#fdf1e3; --warn-ink:#8a4f0c;
  --go:#1b6d8f; --go-soft:#e6f2f7; --go-ink:#135a76;
  --shadow:0 1px 2px rgba(23,34,48,.06),0 8px 24px -12px rgba(23,34,48,.25);
  --shadow-lg:0 2px 4px rgba(23,34,48,.06),0 18px 40px -16px rgba(23,34,48,.35);
  --r:18px; --gutter:16px; --fs:17px;
  --sat:env(safe-area-inset-top,0px); --sab:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){ :root:not([data-theme="light"]){
  --bg:#0f1720; --bg2:#152030; --card:#1a2634; --ink:#eef3f8; --ink2:#b7c3d0; --ink3:#8595a6; --line:#2a3848;
  --acc:#4fb3d4; --acc2:#2a97b8; --acc-soft:#17313f; --acc-ink:#9fdcee;
  --stop:#f07a71; --stop-soft:#3c1f1d; --stop-ink:#ffb3ad;
  --warn:#f0a44a; --warn-soft:#3b2a14; --warn-ink:#ffd29a;
  --go:#4fb3d4; --go-soft:#17313f; --go-ink:#9fdcee;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px -12px rgba(0,0,0,.6);
  --shadow-lg:0 2px 4px rgba(0,0,0,.4),0 18px 40px -16px rgba(0,0,0,.7);
}}
:root[data-theme="dark"]{
  --bg:#0f1720; --bg2:#152030; --card:#1a2634; --ink:#eef3f8; --ink2:#b7c3d0; --ink3:#8595a6; --line:#2a3848;
  --acc:#4fb3d4; --acc2:#2a97b8; --acc-soft:#17313f; --acc-ink:#9fdcee;
  --stop:#f07a71; --stop-soft:#3c1f1d; --stop-ink:#ffb3ad;
  --warn:#f0a44a; --warn-soft:#3b2a14; --warn-ink:#ffd29a;
  --go:#4fb3d4; --go-soft:#17313f; --go-ink:#9fdcee;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px -12px rgba(0,0,0,.6);
  --shadow-lg:0 2px 4px rgba(0,0,0,.4),0 18px 40px -16px rgba(0,0,0,.7);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{font-size:var(--fs);-webkit-text-size-adjust:100%;overflow-x:clip}
body{margin:0;font-family:"Aptos",-apple-system,"Segoe UI",Roboto,Inter,system-ui,sans-serif;color:var(--ink);
  background:radial-gradient(1200px 600px at 50% -200px,var(--bg2),var(--bg) 60%) fixed,var(--bg);
  line-height:1.45;min-height:100dvh;overflow-x:hidden}
button{font:inherit;color:inherit;cursor:pointer}
a{color:var(--acc-ink)}
b{font-weight:650}
p{margin:0 0 .6em}
ul{margin:.3em 0 .6em;padding-left:1.15em}
li{margin:.18em 0}
small{font-size:.86em;color:var(--ink2)}

/* ---------- header ---------- */
.top{position:sticky;top:0;z-index:20;padding:calc(var(--sat) + 8px) var(--gutter) 8px;
  background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px)}
.top-in{max-width:620px;margin:0 auto;display:grid;grid-template-columns:44px 1fr 44px;align-items:center;gap:8px}
.icon-btn{width:44px;height:44px;border:0;border-radius:14px;background:var(--card);box-shadow:var(--shadow);display:grid;place-items:center;transition:transform .12s}
.icon-btn:active{transform:scale(.94)}
.icon-btn[disabled]{opacity:.35;pointer-events:none}
.icon-btn svg{width:22px;height:22px;stroke:var(--ink);fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.crumb{text-align:center;min-width:0}
.crumb b{display:block;font-size:.95rem;font-weight:650;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.crumb small{display:block;font-size:.78rem;color:var(--ink3);line-height:1.2}
.prog{max-width:620px;margin:10px auto 0;height:4px;border-radius:4px;background:var(--line);overflow:hidden}
.prog i{display:block;height:100%;width:0;border-radius:4px;background:linear-gradient(90deg,var(--acc),var(--acc2));transition:width .35s cubic-bezier(.2,.7,.2,1)}

/* ---------- stage ---------- */
main{max-width:620px;margin:0 auto;padding:10px var(--gutter) calc(var(--sab) + 120px)}
.stage{animation:in .32s cubic-bezier(.2,.7,.2,1) both}
.stage.back{animation-name:inb}
@keyframes in{from{opacity:0;transform:translateX(28px)}to{opacity:1;transform:none}}
@keyframes inb{from{opacity:0;transform:translateX(-28px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.stage,.stage.back{animation:none}.prog i{transition:none}}
.kicker{font-size:.78rem;font-weight:650;letter-spacing:.06em;text-transform:uppercase;color:var(--acc-ink);margin:8px 0 4px}
h1{font-size:1.5rem;line-height:1.2;margin:0 0 .45em;font-weight:700;letter-spacing:-.01em}
.lead{color:var(--ink2);margin-bottom:1em}
.card{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:16px;margin:0 0 12px;position:relative}
.card.soft{background:var(--acc-soft);box-shadow:none;color:var(--acc-ink)}
.card.soft p:last-child{margin:0}

/* collapsible reference */
details.ref{border-radius:14px;background:var(--bg2);margin:8px 0 12px}
details.ref summary{list-style:none;cursor:pointer;padding:12px 14px;font-weight:650;font-size:.95rem;display:flex;align-items:center;gap:8px;color:var(--ink2);min-height:44px}
details.ref summary::-webkit-details-marker{display:none}
details.ref summary::after{content:"";margin-left:auto;width:9px;height:9px;border-right:2px solid var(--ink3);border-bottom:2px solid var(--ink3);transform:rotate(45deg);transition:transform .2s}
details.ref[open] summary::after{transform:rotate(-135deg)}
details.ref .in{padding:0 14px 12px;font-size:.95rem;color:var(--ink2)}

/* ---------- choices ---------- */
.choices{display:grid;gap:10px;margin:12px 0}
.choice{display:flex;align-items:center;gap:12px;width:100%;min-height:60px;padding:14px 16px;border:1.5px solid var(--line);border-radius:16px;background:var(--card);text-align:left;box-shadow:var(--shadow);transition:transform .12s,border-color .15s,background .15s}
.choice:active{transform:scale(.985)}
.choice .t{flex:1;min-width:0}
.choice .t b{display:block;font-size:1.02rem}
.choice .t small{display:block;margin-top:2px;line-height:1.3}
.choice .mark{width:26px;height:26px;border-radius:50%;border:2px solid var(--line);flex:none;display:grid;place-items:center;transition:all .15s}
.choice .mark svg{width:16px;height:16px;stroke:#fff;fill:none;stroke-width:3;stroke-linecap:round;stroke-linejoin:round;opacity:0;transform:scale(.6);transition:all .15s}
.choice[aria-checked="true"]{border-color:var(--acc);background:var(--acc-soft)}
.choice[aria-checked="true"] .mark{background:var(--acc);border-color:var(--acc)}
.choice[aria-checked="true"] .mark svg{opacity:1;transform:none}
.choice.sq .mark{border-radius:8px}
.choice.stopish[aria-checked="true"]{border-color:var(--stop);background:var(--stop-soft)}
.choice.stopish[aria-checked="true"] .mark{background:var(--stop);border-color:var(--stop)}
.choice.warnish[aria-checked="true"]{border-color:var(--warn);background:var(--warn-soft)}
.choice.warnish[aria-checked="true"] .mark{background:var(--warn);border-color:var(--warn)}
.group-h{font-size:.82rem;font-weight:650;letter-spacing:.04em;text-transform:uppercase;color:var(--ink3);margin:18px 0 6px}

/* yes / no pair */
.yn{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:14px 0}
.yn button{min-height:64px;border-radius:16px;border:1.5px solid var(--line);background:var(--card);box-shadow:var(--shadow);font-size:1.12rem;font-weight:650;transition:transform .12s}
.yn button:active{transform:scale(.97)}
.yn button.y{border-color:color-mix(in srgb,var(--acc) 40%,var(--line))}
.yn button[aria-pressed="true"]{background:var(--acc);border-color:var(--acc);color:#fff}

/* numeric */
.num{display:grid;grid-template-columns:56px 1fr 56px;gap:8px;align-items:center;margin:12px 0}
.num button{height:60px;border-radius:14px;border:1.5px solid var(--line);background:var(--card);box-shadow:var(--shadow);font-size:1.6rem;font-weight:500}
.num button:active{transform:scale(.96)}
.num input{height:60px;width:100%;border-radius:14px;border:1.5px solid var(--line);background:var(--card);text-align:center;font:inherit;font-size:1.6rem;font-weight:650;color:var(--ink);-moz-appearance:textfield}
.num input::-webkit-inner-spin-button,.num input::-webkit-outer-spin-button{-webkit-appearance:none}
.num input:focus{outline:2px solid var(--acc);outline-offset:1px;border-color:var(--acc)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:4px 0 12px}
.chips button{min-height:40px;padding:8px 14px;border-radius:999px;border:1.5px solid var(--line);background:var(--card);font-size:.92rem;font-weight:600;color:var(--ink2)}
.chips button[aria-pressed="true"]{background:var(--acc-soft);border-color:var(--acc);color:var(--acc-ink)}
.unit{font-size:.9rem;color:var(--ink3);text-align:center;margin-top:-4px}

/* FeverPAIN dial */
.dial{display:grid;grid-template-columns:96px 1fr;gap:14px;align-items:center;background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:14px 16px;margin:10px 0 14px;position:sticky;top:calc(var(--sat) + 84px);z-index:5}
.ring{width:96px;height:96px;border-radius:50%;display:grid;place-items:center;position:relative;
  background:conic-gradient(var(--ringc,var(--acc)) calc(var(--p,0)*1%),var(--line) 0)}
.ring::before{content:"";position:absolute;inset:8px;border-radius:50%;background:var(--card)}
.ring b{position:relative;font-size:2rem;line-height:1;font-weight:700}
.ring small{position:relative;font-size:.7rem;color:var(--ink3);margin-top:2px}
.band b{display:block;font-size:1.05rem}
.band small{display:block;color:var(--ink2);line-height:1.3;margin-top:3px}

/* ---------- outcome ---------- */
.outcome{border-radius:22px;padding:20px 18px;box-shadow:var(--shadow-lg);margin:4px 0 14px;color:#fff;position:relative;overflow:hidden}
.outcome::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.18),transparent 45%,rgba(0,0,0,.08));pointer-events:none}
.outcome.stop{background:linear-gradient(140deg,#d0463c,#9c2a23)}
.outcome.warn{background:linear-gradient(140deg,#e0892a,#a65c0d)}
.outcome.go{background:linear-gradient(140deg,#2a97b8,#155c7a)}
.outcome.neutral{background:linear-gradient(140deg,#5d6f84,#3a4a5d)}
.outcome .tag{display:inline-block;font-size:.74rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;background:rgba(255,255,255,.22);padding:4px 10px;border-radius:999px;margin-bottom:10px}
.outcome h2{margin:0 0 .3em;font-size:1.45rem;line-height:1.15;letter-spacing:-.01em}
.outcome p{margin:0;opacity:.95}
.outcome .big{font-size:1.1rem;font-weight:650;margin-top:8px}
.section h3{font-size:1.05rem;margin:0 0 8px;display:flex;align-items:center;gap:8px}
.section h3 .n{width:24px;height:24px;border-radius:8px;background:var(--acc-soft);color:var(--acc-ink);display:grid;place-items:center;font-size:.8rem;font-weight:700;flex:none}
.pill{display:inline-block;font-size:.8rem;font-weight:650;padding:3px 9px;border-radius:999px;background:var(--bg2);color:var(--ink2);margin:2px 4px 2px 0}
.dose{display:grid;grid-template-columns:1fr;gap:8px;margin:6px 0 10px}
.dose .d{background:var(--bg2);border-radius:14px;padding:12px 14px}
.dose .d small{display:block;color:var(--ink3);font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;font-weight:650}
.dose .d b{font-size:1.15rem}
.caut{border-left:4px solid var(--warn);background:var(--warn-soft);color:var(--warn-ink);border-radius:12px;padding:10px 12px;margin:8px 0}
.caut b{color:inherit}
.check{list-style:none;padding:0;margin:6px 0}
.check li{display:flex;gap:10px;align-items:flex-start;padding:8px 0;border-top:1px solid var(--line)}
.check li:first-child{border-top:0}
.check li::before{content:"";width:18px;height:18px;border-radius:6px;border:1.5px solid var(--acc);flex:none;margin-top:3px}

/* ---------- bottom bar ---------- */
.bar{position:fixed;left:0;right:0;bottom:0;z-index:30;padding:10px var(--gutter) calc(var(--sab) + 12px);
  background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);border-top:1px solid color-mix(in srgb,var(--line) 70%,transparent)}
.bar-in{max-width:620px;margin:0 auto;display:grid;gap:8px}
.primary{min-height:58px;border:0;border-radius:16px;font-size:1.08rem;font-weight:700;color:#fff;
  background:linear-gradient(180deg,var(--acc2),var(--acc));box-shadow:0 1px 0 rgba(255,255,255,.25) inset,0 10px 24px -10px rgba(27,109,143,.7);transition:transform .12s,opacity .2s}
.primary:active{transform:scale(.98)}
.primary[disabled]{opacity:.45;pointer-events:none}
.primary.ghost{background:var(--card);color:var(--ink);box-shadow:var(--shadow);border:1.5px solid var(--line)}
.primary.stop{background:linear-gradient(180deg,#d9574d,var(--stop));box-shadow:0 10px 24px -10px rgba(196,61,53,.7)}
.bar .link{min-height:40px;border:0;background:none;color:var(--ink2);font-weight:600;text-decoration:underline;text-underline-offset:3px;font-size:.92rem}
.bar .row{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.bar .status{display:flex;align-items:center;gap:10px;font-size:.9rem;color:var(--ink2);padding:0 4px 2px}
.bar .status b{color:var(--ink)}

/* ---------- summary sheet ---------- */
.sheet-bg{position:fixed;inset:0;background:rgba(10,16,24,.45);z-index:40;opacity:0;pointer-events:none;transition:opacity .25s}
.sheet{position:fixed;left:0;right:0;bottom:0;z-index:41;background:var(--card);border-radius:24px 24px 0 0;box-shadow:var(--shadow-lg);
  max-height:86dvh;overflow:auto;padding:12px var(--gutter) calc(var(--sab) + 18px);transform:translateY(105%);transition:transform .3s cubic-bezier(.2,.7,.2,1)}
.sheet.open{transform:none}.sheet-bg.open{opacity:1;pointer-events:auto}
.sheet .grab{width:40px;height:5px;border-radius:5px;background:var(--line);margin:0 auto 12px}
.sheet h2{font-size:1.15rem;margin:0 0 8px}
.path{list-style:none;margin:0;padding:0}
.path li{display:grid;grid-template-columns:1fr auto;gap:10px;padding:10px 0;border-top:1px solid var(--line);font-size:.95rem}
.path li:first-child{border-top:0}
.path li small{display:block;color:var(--ink3)}
.path li .a{font-weight:650;text-align:right;color:var(--acc-ink)}
.path li .a.bad{color:var(--stop-ink)}
.sheet .actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:14px}
.sheet .actions button{min-height:48px;border-radius:14px;border:1.5px solid var(--line);background:var(--card);font-weight:650}
.foot{font-size:.8rem;color:var(--ink3);margin:22px 0 0;line-height:1.4}
.foot a{color:inherit}

.side{display:none}
/* ---------- larger screens ---------- */
@media (min-width:640px){
  :root{--fs:18px;--gutter:24px;--r:22px}
  .top-in,.prog,main,.bar-in{max-width:680px}
  h1{font-size:1.75rem}
  .yn button{min-height:70px}
  .dose{grid-template-columns:1fr 1fr}
}
@media (min-width:1024px){
  :root{--fs:17px}
  body{background:radial-gradient(900px 500px at 70% -200px,var(--bg2),var(--bg) 60%) fixed,var(--bg)}
  .shell{display:grid;grid-template-columns:minmax(0,640px) 320px;gap:40px;justify-content:center;align-items:start;padding:0 32px}
  .top{position:static;background:none;backdrop-filter:none;padding-top:28px}
  .top-in,.prog{max-width:none;margin-left:0}
  main{max-width:none;margin:0;padding-bottom:140px}
  .bar{position:sticky;bottom:0;background:none;border:0;backdrop-filter:none;padding-left:0;padding-right:0;max-width:640px}
  .bar-in{max-width:none}
  .side{display:block;position:sticky;top:28px;margin-top:28px}
  .side .panel{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:18px}
  .side h2{font-size:1rem;margin:0 0 6px;color:var(--ink2);text-transform:uppercase;letter-spacing:.05em;font-weight:650}
  .side .path li{font-size:.9rem;padding:8px 0}
  .side .actions{display:grid;gap:8px;margin-top:12px}
  .side .actions button{min-height:44px;border-radius:12px;border:1.5px solid var(--line);background:var(--card);font-weight:650}
  #sumBtn{display:none}
  .dial{position:static}
}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.side .home{display:block;text-align:center;min-height:44px;line-height:44px;border-radius:12px;border:1.5px solid var(--line);font-weight:650;text-decoration:none;color:var(--ink)}
.bar .link{min-height:40px;border:0;background:none;color:var(--ink2);font-weight:600;text-decoration:underline;text-underline-offset:3px;font-size:.92rem}