/* ============ ECG · SIMULADOR — integración nativa (Consola oscura) ============ */
#herramienta.tool-section{position:relative;padding:var(--space-6,4rem) 0;border-top:0;background:
  radial-gradient(900px 420px at 12% -6%,rgba(204,41,54,.13),transparent 60%),
  radial-gradient(800px 460px at 100% 30%,rgba(60,120,190,.12),transparent 62%),
  linear-gradient(rgba(150,190,230,.045) 1px,transparent 1px) 0 0/56px 56px,
  linear-gradient(90deg,rgba(150,190,230,.045) 1px,transparent 1px) 0 0/56px 56px,#0b1826}
#herramienta.tool-section::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,transparent,#CC2936 20%,#CC2936 80%,transparent)}
.tool-section__header{margin-bottom:var(--space-4,2rem);padding:0 var(--gutter,1.5rem);max-width:var(--max-width,1280px);margin-left:auto;margin-right:auto;display:flex;flex-wrap:wrap;gap:12px 32px;align-items:flex-end;justify-content:space-between}
.tool-section__meta{font-family:var(--font-display);font-weight:700;font-size:.95rem;letter-spacing:.14em;text-transform:uppercase;color:#E0394A;margin-bottom:6px}
.tool-section__title{font-family:var(--font-display);font-size:clamp(1.8rem,4vw,2.6rem);font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:#F0F2F4;line-height:1.05}
.tool-section__note{max-width:46ch;font-size:.95rem;color:#8da2b8}
.tool-section__wrap{max-width:var(--max-width,1280px);margin:0 auto;padding:0 var(--gutter,1.5rem)}

.ekg{--bd:rgba(150,190,230,.16);--tx:#c9d6e4;--tx2:rgba(200,220,240,.66);--ink:#eaf1f8;--red:#CC2936;--redl:#ff6b78;--grn:#4dff88;--blue:#6fb4ff;--amb:#ffc247;
  color:var(--tx);font-family:var(--font-body,'DM Sans',sans-serif);font-size:15px;line-height:1.55;position:relative}
.ekg *,.ekg *::before,.ekg *::after{box-sizing:border-box}
:where(.ekg) button{font-family:inherit;cursor:pointer;color:inherit;border:0;background:none;-webkit-tap-highlight-color:transparent}
.ekg button:focus-visible,.ekg canvas:focus-visible{outline:2px solid #fff;outline-offset:2px}
.ekg ul{list-style:none;margin:0;padding:0}
.ekg h3,.ekg h4,.ekg p{margin:0}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

.ekg-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:16px;align-items:start}
.ekg-lower{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:16px;margin-top:16px;align-items:start}
.ekg-card{background:linear-gradient(165deg,#20364c,#162a3e);border:1px solid var(--bd);border-radius:16px;padding:18px;box-shadow:0 18px 40px -22px rgba(0,0,0,.7),inset 0 1px 0 rgba(255,255,255,.05);min-width:0}
.ekg-ch{display:flex;flex-wrap:wrap;gap:10px 14px;align-items:center;justify-content:space-between;margin-bottom:14px}
.ekg-eyebrow{display:block;font-family:var(--font-display,'Barlow Condensed',sans-serif);font-weight:700;font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;color:var(--redl)}
.ekg-ch h3{font-family:var(--font-display,'Barlow Condensed',sans-serif);font-weight:700;font-size:1.2rem;letter-spacing:.04em;text-transform:uppercase;color:#fff;line-height:1.15}

/* segmentados */
.ekg-seg{display:inline-flex;background:rgba(6,14,24,.5);border:1px solid var(--bd);border-radius:12px;padding:3px;gap:2px}
.ekg-seg button{min-height:36px;padding:0 12px;border-radius:9px;font-size:.82rem;font-weight:600;color:#b9c9da;white-space:nowrap;transition:background-color .2s,color .2s}
.ekg-seg button:hover{background:rgba(240,242,244,.08);color:#fff}
.ekg-seg button.on{background:rgba(204,41,54,.9);color:#fff;box-shadow:0 2px 10px -2px rgba(204,41,54,.6)}
.ekg-seg--sm button{min-height:32px;padding:0 10px;font-size:.78rem}

/* escenario 3D */
.ekg-stage{position:relative;height:clamp(340px,40vw,470px);border-radius:14px;overflow:hidden;background:
  radial-gradient(70% 62% at 50% 46%,rgba(70,120,170,.35),transparent 70%),
  linear-gradient(rgba(150,190,230,.05) 1px,transparent 1px) 0 0/28px 28px,linear-gradient(90deg,rgba(150,190,230,.05) 1px,transparent 1px) 0 0/28px 28px,#0a1624;
  border:1px solid rgba(150,190,230,.18)}
#ekg-hcv{position:absolute;left:0;top:0;right:0;bottom:50px;width:100%;height:calc(100% - 50px);display:block;touch-action:pan-y;cursor:grab;outline-offset:-3px}
.ekg-stage.is-drag #ekg-hcv{cursor:grabbing}
#ekg-labels{position:absolute;left:0;top:0;right:0;bottom:50px;pointer-events:none;overflow:hidden}
.ekg-lb{position:absolute;left:0;top:0;pointer-events:auto;min-width:30px;height:24px;padding:0 7px;border-radius:12px;font-size:11.5px;font-weight:700;line-height:24px;letter-spacing:.02em;text-align:center;
  background:rgba(8,18,30,.82);border:1px solid rgba(111,180,255,.7);color:#bfe0ff;backdrop-filter:blur(2px);transition:background-color .18s,color .18s,border-color .18s,box-shadow .18s;will-change:transform}
.ekg-lb::after{content:"";position:absolute;inset:-10px}
.ekg-lb--prec{border-color:rgba(255,178,71,.75);color:#ffe1b0}
.ekg-lb.hov{background:#fff;color:#0b1826;border-color:#fff}
.ekg-lb.on{background:#2eea78;color:#04130c;border-color:#2eea78;box-shadow:0 0 0 3px rgba(46,234,120,.25),0 0 16px rgba(46,234,120,.5)}
#ekg-tip{position:absolute;left:0;top:0;z-index:4;pointer-events:none;padding:10px 12px 11px;border-radius:12px;background:rgba(6,14,24,.94);border:1px solid rgba(150,190,230,.3);box-shadow:0 14px 30px -12px rgba(0,0,0,.8);font-size:.82rem;line-height:1.4;color:#d7e2ee}
#ekg-tip[hidden]{display:none}
#ekg-tip b{display:inline-block;margin-right:6px;font-family:var(--font-display,'Barlow Condensed',sans-serif);font-size:1.1rem;letter-spacing:.06em;color:#fff}
#ekg-tip span{display:block;margin-top:2px}
#ekg-tip em{display:block;margin-top:6px;font-style:normal;color:#8fe9b0;font-size:.76rem}
.ekg-views{position:absolute;left:10px;right:10px;bottom:8px;display:flex;flex-wrap:wrap;gap:6px;justify-content:center;pointer-events:none}
.ekg-views .ekg-seg{pointer-events:auto;background:rgba(6,14,24,.72);backdrop-filter:blur(4px)}
.ekg-hint{position:absolute;left:12px;top:10px;font-size:.72rem;letter-spacing:.04em;color:rgba(200,220,240,.6);pointer-events:none;max-width:60%}
.ekg-key{position:absolute;right:12px;top:10px;display:flex;flex-direction:column;gap:3px;font-size:.7rem;color:rgba(200,220,240,.7);pointer-events:none;text-align:right}
.ekg-key i{display:inline-block;width:14px;height:3px;border-radius:2px;vertical-align:middle;margin-right:5px}
.ekg-stage__load,.ekg-stage__fail{position:absolute;inset:0;display:none;align-items:center;justify-content:center;text-align:center;padding:24px;font-size:.9rem;color:#9fb3c8}
.ekg-stage.is-loading .ekg-stage__load{display:flex}
.ekg-stage.is-failed .ekg-stage__fail{display:flex}
.ekg-stage.is-failed .ekg-views,.ekg-stage.is-failed .ekg-hint,.ekg-stage.is-failed .ekg-key,.ekg-stage.is-loading .ekg-views{display:none}
.ekg.no-3d .ekg-heartcard .ekg-seg[aria-label="Derivaciones visibles"]{display:none}

/* panel de derivación */
.ekg-li{margin-top:14px;padding:14px 16px;border-radius:12px;background:rgba(6,14,24,.45);border:1px solid rgba(150,190,230,.14)}
.ekg-li__h{display:flex;align-items:baseline;gap:10px;margin-bottom:8px}
.ekg-li__h h4{white-space:nowrap;font-family:var(--font-display,'Barlow Condensed',sans-serif);font-weight:700;font-size:1.25rem;letter-spacing:.04em;text-transform:uppercase;color:#fff}
.ekg-li__pos{font-size:.8rem;color:var(--tx2)}
.ekg-li dl{margin:0;display:grid;gap:9px}
.ekg-li dt{font-size:.7rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--redl);margin-bottom:1px}
.ekg-li dd{margin:0;font-size:.88rem;color:#cfdbe8;line-height:1.5}

/* monitor */
.ekg-hud{display:flex;flex-wrap:wrap;gap:12px 18px;align-items:flex-start;justify-content:space-between;margin-bottom:12px}
.ekg-hud__l{min-width:0;flex:1 1 260px}
.ekg-hud__n{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px}
#ekg-name{font-family:var(--font-display,'Barlow Condensed',sans-serif);font-weight:700;font-size:clamp(1.25rem,2.4vw,1.65rem);letter-spacing:.03em;text-transform:uppercase;color:#fff;line-height:1.1}
.ekg-sev{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:12px;font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;white-space:nowrap}
.sv-ok{background:rgba(77,255,136,.14);color:#7dffa8;border:1px solid rgba(77,255,136,.4)}
.sv-rec{background:rgba(111,180,255,.14);color:#a8d1ff;border:1px solid rgba(111,180,255,.4)}
.sv-urg{background:rgba(255,194,71,.14);color:#ffd584;border:1px solid rgba(255,194,71,.45)}
.sv-crit{background:rgba(204,41,54,.28);color:#ffb0b8;border:1px solid rgba(255,107,120,.6)}
#ekg-rhythm{margin-top:4px;font-size:.84rem;color:var(--tx2)}
.ekg-hr{display:flex;align-items:baseline;gap:6px;padding:6px 14px 7px;border-radius:12px;background:#04130c;border:1px solid rgba(77,255,136,.25);box-shadow:inset 0 0 18px rgba(0,0,0,.6)}
.ekg-hr small{font-size:.66rem;font-weight:700;letter-spacing:.14em;color:rgba(168,255,196,.6);text-transform:uppercase;align-self:center}
#ekg-hr{font-family:var(--font-display,'Barlow Condensed',sans-serif);font-weight:700;font-size:2.1rem;line-height:1;color:var(--grn);text-shadow:0 0 12px rgba(77,255,136,.55);font-variant-numeric:tabular-nums}
#ekg-hru{font-size:.78rem;color:rgba(168,255,196,.65)}
.ekg-screen{position:relative;height:clamp(230px,30vw,310px);border-radius:12px;overflow:hidden;background:#04130c;border:1px solid rgba(77,255,136,.22);box-shadow:inset 0 0 28px rgba(0,0,0,.6),0 0 24px -12px rgba(77,255,136,.35)}
.ekg[data-mode="twelve"] .ekg-screen{height:clamp(420px,52vw,540px)}
.ekg[data-theme="paper"] .ekg-screen{background:#fff6f4;border-color:rgba(234,162,157,.8);box-shadow:inset 0 0 0 1px rgba(255,255,255,.4)}
.ekg-screen canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
#ekg-ov{pointer-events:none}
.ekg-bar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:12px}
.ekg-bar .grow{flex:1}
.ekg-tg{display:inline-flex;align-items:center;gap:7px;min-height:38px;padding:0 13px;border-radius:11px;background:rgba(6,14,24,.5);border:1px solid var(--bd);font-size:.82rem;font-weight:600;color:#d7e2ee;transition:background-color .2s,border-color .2s}
.ekg-tg:hover{background:rgba(240,242,244,.08)}
.ekg-tg.on{border-color:rgba(255,194,71,.7);color:#ffe3a1;background:rgba(255,194,71,.1)}
#ekg-pause.on{border-color:rgba(111,180,255,.7);color:#bfe0ff;background:rgba(111,180,255,.12)}
.ekg-lead-label{display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px 12px;margin:14px 0 8px;font-size:.76rem;color:var(--tx2)}
.ekg-lead-label b{font-family:var(--font-display,'Barlow Condensed',sans-serif);font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:#d7e2ee;font-size:.82rem}
#ekg-leads{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:6px}
.ekg-lead{position:relative;min-height:44px;border-radius:10px;background:rgba(6,14,24,.5);border:1px solid var(--bd);font-weight:700;font-size:.86rem;color:#d7e2ee;transition:background-color .2s,border-color .2s,color .2s}
.ekg-lead:hover{background:rgba(240,242,244,.09)}
.ekg-lead.on{background:rgba(46,234,120,.16);border-color:#2eea78;color:#9bffc1}
.ekg-lead i{display:none;position:absolute;top:3px;right:5px;font-style:normal;font-size:.72rem;line-height:1;font-weight:700}
.ekg-lead.mk-up i.up{display:block;color:#ff7d89}
.ekg-lead.mk-dn i.dn{display:block;color:#7fbcff}
.ekg-legend{margin-top:8px;font-size:.74rem;color:var(--tx2)}
.ekg-legend b{font-weight:700}
.ekg-legend .u{color:#ff7d89}.ekg-legend .d{color:#7fbcff}
#ekg-variants{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px;padding-top:14px;border-top:1px solid rgba(150,190,230,.14)}
#ekg-variants[hidden]{display:none}
#ekg-variants::before{content:"Variante:";align-self:center;margin-right:2px;font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--tx2)}
.ekg-vb{min-height:38px;padding:0 13px;border-radius:19px;background:rgba(6,14,24,.5);border:1px solid var(--bd);font-size:.82rem;font-weight:600;color:#d7e2ee}
.ekg-vb:hover{background:rgba(240,242,244,.09)}
.ekg-vb.on{background:rgba(204,41,54,.22);border-color:#e0394a;color:#ffc2c8}

/* patologías */
.ekg-grp+.ekg-grp{margin-top:14px}
.ekg-grp__h{font-size:.7rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--tx2);margin-bottom:7px}
.ekg-grp__r{display:flex;flex-wrap:wrap;gap:6px}
.ekg-pb{display:inline-flex;align-items:center;gap:8px;min-height:42px;padding:0 13px;border-radius:12px;background:rgba(6,14,24,.45);border:1px solid rgba(150,190,230,.22);font-size:.84rem;font-weight:600;color:#d7e2ee;text-align:left;transition:background-color .2s,border-color .2s,transform .2s}
.ekg-pb:hover{background:rgba(240,242,244,.09);transform:translateY(-1px)}
.ekg-pb.on{background:rgba(204,41,54,.2);border-color:#e0394a;color:#fff}
.ekg-pb .sv{flex:none;width:8px;height:8px;border-radius:50%}
.sv--ok{background:#4dff88}.sv--rec{background:#6fb4ff}.sv--urg{background:#ffc247}.sv--crit{background:#ff4d5e;box-shadow:0 0 8px rgba(255,77,94,.7)}
.ekg-sevleg{display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:16px;padding-top:12px;border-top:1px solid rgba(150,190,230,.14);font-size:.74rem;color:var(--tx2)}
.ekg-sevleg span{display:inline-flex;align-items:center;gap:6px}
.ekg-sevleg i{width:8px;height:8px;border-radius:50%;display:inline-block}

/* explicación */
.ekg-x__t{font-family:var(--font-display,'Barlow Condensed',sans-serif);font-weight:700;font-size:clamp(1.3rem,2.4vw,1.7rem);letter-spacing:.03em;text-transform:uppercase;color:#fff;line-height:1.1}
.ekg-x__s{margin-top:8px;color:#d7e2ee;font-size:.96rem}
#ekg-x-key{display:flex;flex-wrap:wrap;gap:6px 8px;margin-top:12px}
#ekg-x-key[hidden]{display:none}
.kv{display:inline-flex;gap:6px;align-items:baseline;padding:5px 10px;border-radius:8px;font-size:.8rem;font-weight:600}
.kv b{font-size:.9rem}
.kv--up{background:rgba(255,107,120,.12);color:#ffb7be;border:1px solid rgba(255,107,120,.35)}
.kv--dn{background:rgba(111,180,255,.12);color:#b6d8ff;border:1px solid rgba(111,180,255,.35)}
.ekg-x__g{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:16px}
.ekg-x__b{padding:14px 15px;border-radius:12px;background:rgba(6,14,24,.42);border:1px solid rgba(150,190,230,.14)}
.ekg-x__b--w{grid-column:1/-1}
.ekg-x__b h4{font-size:.7rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--redl);margin-bottom:8px}
.ekg-x__b--act h4{color:#8fe9b0}
.ekg-x__b--trap h4{color:var(--amb)}
.ekg-x__b ul{display:grid;gap:7px}
.ekg-x__b li{position:relative;padding-left:15px;font-size:.88rem;color:#cfdbe8;line-height:1.5}
.ekg-x__b li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.55}
.ekg-x__b p{font-size:.88rem;color:#cfdbe8;line-height:1.55}
.ekg-x__r{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-top:14px;font-size:.76rem;color:var(--tx2)}
.ekg-ref{display:inline-grid;place-items:center;min-width:24px;height:24px;border-radius:12px;padding:0 6px;background:rgba(240,242,244,.08);border:1px solid rgba(240,242,244,.2);color:#e1e9f2;font-weight:700;font-size:.74rem}
.ekg-ref:hover{background:rgba(240,242,244,.18)}
.ekg-disc{margin-top:16px;padding:12px 16px;border-radius:12px;background:rgba(204,41,54,.08);border:1px solid rgba(204,41,54,.25);border-left:3px solid #CC2936;font-size:.84rem;color:rgba(220,230,240,.85)}
.ekg-disc strong{color:#fff}

@media (max-width:1100px){
  .ekg-grid,.ekg-lower{grid-template-columns:minmax(0,1fr)}
  .ekg-moncard{order:-1}
  .ekg-stage{height:clamp(340px,70vw,520px)}
}
@media (max-width:640px){
  #herramienta.tool-section{padding:var(--space-5,3rem) 0}
  .ekg-card{padding:14px;border-radius:14px}
  .ekg-x__g{grid-template-columns:minmax(0,1fr)}
  .ekg-screen{height:clamp(220px,62vw,300px)}
  .ekg[data-mode="twelve"] .ekg-screen{height:min(120vw,620px)}
  #ekg-leads{grid-template-columns:repeat(6,minmax(0,1fr));gap:5px}
  .ekg-lead{min-height:44px;font-size:.78rem}
  .ekg-hint{display:none}
  .ekg-key{display:none}
  .ekg-views .ekg-seg button{padding:0 9px;font-size:.76rem}
  #ekg-hr{font-size:1.8rem}
  .ekg-bar .grow{display:none}
}
@media (prefers-reduced-motion:reduce){.ekg *{transition:none !important}}

/* tabla de derivaciones y referencias (secciones claras de la página) */
.ekg-tblwrap{overflow-x:auto;border:1px solid var(--line,rgba(13,27,42,.14));border-radius:10px;background:#fff;-webkit-overflow-scrolling:touch}
.ekg-tbl{width:100%;border-collapse:collapse;min-width:640px;font-size:15px;line-height:1.5;color:var(--text-2,#3b4a5a)}
.ekg-tbl th{position:sticky;top:0;text-align:left;padding:12px 16px;font-family:var(--font-display,'Barlow Condensed',sans-serif);font-weight:700;font-size:15px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink,#0D1B2A);background:var(--mist,#f1f4f7);border-bottom:1px solid var(--line,rgba(13,27,42,.14))}
.ekg-tbl td{padding:12px 16px;vertical-align:top;border-bottom:1px solid var(--line,rgba(13,27,42,.1))}
.ekg-tbl tr:last-child td{border-bottom:0}
.ekg-tbl tbody tr{cursor:pointer;transition:background-color .2s}
.ekg-tbl tbody tr:hover,.ekg-tbl tbody tr:focus-visible{background:var(--mist,#f1f4f7);outline:none}
.ekg-tbl td:first-child{font-family:var(--font-display,'Barlow Condensed',sans-serif);font-weight:800;font-size:22px;letter-spacing:.03em;color:var(--ink,#0D1B2A);white-space:nowrap}
.ekg-tbl td:first-child small{display:block;font-family:var(--font-body,'DM Sans',sans-serif);font-weight:500;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--red,#CC2936)}
.ekg-refs{display:grid;gap:12px;padding-left:1.4em;margin:0;font-size:15.5px;line-height:1.55;color:var(--text-2,#3b4a5a)}
.ekg-refs li{padding-left:6px}
.ekg-refs li::marker{font-weight:700;color:var(--red,#CC2936)}
.ekg-refs li:target{background:var(--mist,#f1f4f7);outline:2px solid var(--red,#CC2936);outline-offset:4px;border-radius:4px}