:root{
  --teal:#70979E;
  --teal-dk:#0E3540;
  --ink:#16252B;
  --muted:#5C7077;
  --paper:#F2F6F6;
  --card:#FFFFFF;
  --line:#D6E1E3;
  --leve:#1F7A5A;
  --mod:#B9741A;
  --grave:#B3312B;
  --radius:12px;
  --sheet-h:88px;
  --accent:#12626F;
  --accent-dk:#0B3E47;
  --accent-soft:#E8F3F4;
}
/* acento propio de cada calculadora */
body[data-score="tal"]{--accent:#12626F;--accent-dk:#0B3E47;--accent-soft:#E6F2F3}
body[data-score="ps"]{--accent:#3F4E92;--accent-dk:#2A3568;--accent-soft:#ECEEF9}
body[data-score="pram"]{--accent:#8A4160;--accent-dk:#5F2B42;--accent-soft:#F9ECF1}

*{box-sizing:border-box}
html,body{margin:0}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:"Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.45;
  padding-bottom:calc(var(--sheet-h) + env(safe-area-inset-bottom));
  -webkit-text-size-adjust:100%;
}

/* ---------- encabezado ---------- */
.topbar{
  display:flex;gap:12px;align-items:center;
  padding:14px 16px;
  background:var(--accent-dk);color:#fff;
  padding-top:calc(14px + env(safe-area-inset-top));
  transition:background-color .18s ease;
}
.brand{width:42px;height:42px;border-radius:9px;background:#fff;flex:0 0 auto}
.topbar h1{margin:0;font-size:1.02rem;line-height:1.25;font-weight:600;letter-spacing:.1px}
.sub{margin:2px 0 0;font-size:.78rem;opacity:.72}

/* ---------- pestañas ---------- */
.tabs{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--line);
  position:sticky;top:0;z-index:5;
  border-bottom:1px solid var(--line);
}
.tab{
  appearance:none;border:0;cursor:pointer;
  background:#E9EEEF;color:var(--muted);
  padding:9px 4px 10px;font:inherit;text-align:center;
  display:flex;flex-direction:column;gap:1px;
  border-top:4px solid transparent;
}
.tab-age{font-size:.72rem;letter-spacing:.3px}
.tab-name{font-size:.86rem;font-weight:600;color:var(--muted)}
#tab-tal[aria-selected="true"]{background:#fff;border-top-color:#12626F;color:#0B3E47}
#tab-ps[aria-selected="true"]{background:#fff;border-top-color:#3F4E92;color:#2A3568}
#tab-pram[aria-selected="true"]{background:#fff;border-top-color:#8A4160;color:#5F2B42}
.tab[aria-selected="true"] .tab-name{color:inherit}
.tab[aria-selected="true"] .tab-age{color:inherit;opacity:.8}

/* ---------- contenido ---------- */
main{max-width:640px;margin:0 auto;padding:14px 12px 4px}
.intro{
  background:var(--accent-soft);border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:var(--radius);padding:10px 12px;margin:0 0 14px;font-size:.87rem;color:var(--ink);
}
.intro b{font-weight:700}
.intro .eyebrow{display:block;font-weight:700;color:var(--accent-dk);margin-bottom:2px}

fieldset{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--card);margin:0 0 12px;padding:10px 12px 12px;
}
legend{font-size:.9rem;font-weight:600;padding:0 6px;color:var(--accent-dk)}
.hint{margin:0 0 8px;font-size:.78rem;color:var(--muted)}
fieldset .hint:last-child{margin:8px 0 0}

.opts{display:flex;flex-direction:column;gap:6px}
.opt{position:relative;display:flex;align-items:flex-start;gap:10px;cursor:pointer;
  border:1px solid var(--line);border-radius:10px;padding:9px 10px;background:#fff}
.opt input{position:absolute;opacity:0;width:1px;height:1px}
.opt .pts{
  flex:0 0 auto;min-width:24px;height:24px;border-radius:7px;background:var(--paper);
  color:var(--muted);font-size:.8rem;font-weight:700;display:grid;place-items:center;margin-top:1px}
.opt span.txt{flex:1;font-size:.9rem}
.opt:has(input:checked){border-color:var(--accent);background:var(--accent-soft);box-shadow:inset 0 0 0 1px var(--accent)}
.opt:has(input:checked) .pts{background:var(--accent);color:#fff}
.opt:has(input:focus-visible){outline:3px solid var(--accent-dk);outline-offset:2px}

.seg{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.seg button{
  appearance:none;font:inherit;font-size:.85rem;cursor:pointer;
  border:1px solid var(--line);background:#fff;color:var(--muted);
  border-radius:999px;padding:7px 14px}
.seg button[aria-pressed="true"]{background:var(--accent-dk);border-color:var(--accent-dk);color:#fff}

/* ---------- barra de resultado ---------- */
.sheet{
  position:fixed;left:0;right:0;bottom:0;z-index:10;
  background:var(--accent-dk);color:#fff;
  border-top:4px solid var(--accent);
  padding-bottom:env(safe-area-inset-bottom);
  transition:background-color .18s ease,border-color .18s ease;
}
.sheet[data-sev="leve"]{background:var(--leve);border-top-color:#14543E}
.sheet[data-sev="moderada"]{background:var(--mod);border-top-color:#8A5411}
.sheet[data-sev="grave"]{background:var(--grave);border-top-color:#7D1F1B}
.sheet-inner{max-width:640px;margin:0 auto;display:flex;align-items:center;gap:12px;padding:10px 12px;min-height:var(--sheet-h)}
.score-box{display:flex;align-items:baseline;gap:2px;min-width:70px}
.score-num{font-size:2.5rem;font-weight:700;line-height:1;font-variant-numeric:tabular-nums}
.score-max{font-size:1rem;opacity:.75}
.score-text{flex:1;display:flex;flex-direction:column;gap:2px;min-width:0}
.score-text strong{font-size:1.05rem;letter-spacing:.2px}
.score-text span{font-size:.79rem;opacity:.92}
.sheet-actions{display:flex;flex-direction:column;gap:6px}
.ghost{
  appearance:none;font:inherit;font-size:.78rem;cursor:pointer;
  background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.45);
  border-radius:8px;padding:5px 10px}
.ghost:active{background:rgba(255,255,255,.28)}

/* ---------- pie ---------- */
.legal{max-width:640px;margin:0 auto;padding:0 12px 18px;font-size:.8rem;color:var(--muted)}
.warning{
  background:#FFF4F3;border:1px solid #F0C9C6;border-left:4px solid var(--grave);
  border-radius:var(--radius);padding:10px 12px;color:var(--ink);margin:4px 0 12px}
.warning strong{color:var(--grave)}
.legal summary{cursor:pointer;font-weight:600;color:var(--accent-dk);padding:8px 0}
.legal ul{padding-left:18px;margin:6px 0 0}
.legal li{margin-bottom:6px}
.legal a{color:var(--accent-dk)}

@media (min-width:560px){
  .topbar h1{font-size:1.15rem}
  .opt span.txt{font-size:.94rem}
}
@media (prefers-reduced-motion:reduce){*{transition:none !important}}