:root{
  --bg:#000;
  --panel:#070809;
  --panel-2:#0d0f11;
  --line:rgba(255,255,255,.11);
  --line-2:rgba(255,255,255,.2);
  --ink:#fff;
  --ink-2:rgba(255,255,255,.70);
  --ink-3:rgba(255,255,255,.56);
  --cy:#21b5ea;
  --cy-lite:#7fd4f4;
  --sage:#c2ddb4;
  --warn:#ffa79b;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --head:"Archivo",system-ui,sans-serif;
  --body:"Karla",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;color-scheme:dark}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--body);
  font-size:16px;
  line-height:1.6;
  overflow-x:hidden;
  background-image:
    radial-gradient(900px 520px at 18% -8%, rgba(33,181,234,.16), transparent 70%),
    radial-gradient(760px 480px at 92% 4%, rgba(194,221,180,.07), transparent 68%);
  background-repeat:no-repeat;
}
h1,h2,h3,h4{font-family:var(--head);font-weight:500;letter-spacing:-.02em;line-height:1.06;margin:0;text-wrap:balance}
a{color:var(--cy-lite);text-decoration:none;transition:color .16s ease}
a:hover{color:#a9e3f8}
img{display:block;max-width:100%}
::selection{background:rgba(33,181,234,.32)}
:focus-visible{outline:2px solid var(--cy);outline-offset:3px}
.mono{font-family:var(--mono)}

/* ─────────── nav ─────────── */
.nav{
  position:sticky;top:0;z-index:60;
  background:rgba(8,11,14,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav__inner{max-width:1180px;margin:0 auto;padding:12px 24px;display:flex;align-items:center;gap:24px}
.nav__brand{display:flex;align-items:center;gap:9px;color:var(--ink);flex:none}
.nav__brand span{font-family:"Chakra Petch",sans-serif;font-weight:700;font-size:20px;letter-spacing:.06em}
.nav__links{display:flex;align-items:center;gap:22px;margin-left:auto;font-size:15px;font-weight:500}
.nav__links a{color:var(--ink-2)}
.nav__links a:hover{color:var(--ink)}
.nav__current{color:var(--cy);font-weight:700}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--body);font-weight:600;font-size:15px;line-height:1;
  padding:14px 24px;border-radius:999px;border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease,transform .18s ease;
}
.btn--cy{background:#fff;color:#000;border-color:#fff}
.btn--cy:hover{background:rgba(255,255,255,.86);border-color:rgba(255,255,255,.86);color:#000;transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn--ghost:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.btn--block{width:100%}

/* ─────────── layout ─────────── */
.wrap{max-width:1180px;margin:0 auto;padding:44px 24px 0}

.head{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:end}
.eyebrow{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cy);margin:0 0 12px;display:flex;align-items:center;gap:9px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cy);box-shadow:0 0 12px 2px rgba(33,181,234,.75)}
.head h1{font-size:clamp(34px,4.6vw,52px)}
.lede{font-size:16.5px;color:var(--ink-2);margin:14px 0 0;max-width:62ch;line-height:1.6}

.conn{
  background:linear-gradient(180deg,rgba(22,31,40,.9),rgba(16,23,32,.9));
  border:1px solid var(--line);border-radius:14px;padding:6px 18px;
}
.conn__row{display:flex;justify-content:space-between;align-items:baseline;gap:14px;padding:11px 0}
.conn__row + .conn__row{border-top:1px solid var(--line)}
.conn__k{font-size:12.5px;color:var(--ink-3);letter-spacing:.02em;white-space:nowrap}
.conn__v{font-size:14px;font-weight:600;color:var(--ink);text-align:right;line-height:1.35}
.conn__v.mono{font-family:var(--mono);font-weight:500;font-size:13px}

/* ─────────── instrument ─────────── */
.instrument{
  display:grid;grid-template-columns:minmax(0,420px) minmax(0,1fr);gap:44px;align-items:start;
  margin-top:36px;padding:38px 40px 40px;
  background:linear-gradient(180deg,rgba(19,27,35,.92),rgba(12,17,23,.92));
  border:1px solid var(--line);border-radius:22px;
  box-shadow:0 30px 90px -50px rgba(0,0,0,.9);
}

.gauge-col{display:flex;flex-direction:column;align-items:center}
.gauge{position:relative;width:100%;max-width:400px;aspect-ratio:1}
.gauge__svg{width:100%;height:100%;display:block;overflow:visible}
.gauge__track{fill:none;stroke:#1a242c;stroke-width:14;stroke-linecap:round;
  stroke-dasharray:706.9 942.5;transform:rotate(135deg);transform-origin:200px 200px}
.gauge__arc{fill:none;stroke:url(#arcGrad);stroke-width:14;stroke-linecap:round;
  stroke-dasharray:706.9 942.5;stroke-dashoffset:706.9;
  transform:rotate(135deg);transform-origin:200px 200px;
  transition:stroke-dashoffset .18s linear}
.gauge.is-up .gauge__arc{stroke:url(#arcGradUp)}
.gauge__tip{fill:var(--cy-lite);opacity:0;transition:opacity .2s ease}
.gauge.is-up .gauge__tip{fill:var(--sage)}
.gauge.is-live .gauge__tip{opacity:1}
.gauge__ticks line{stroke:#3a4a55;stroke-width:2;stroke-linecap:round}
.gauge__ticks text{fill:#7a8b96;font-family:var(--mono);font-size:12px;font-weight:500;text-anchor:middle;dominant-baseline:middle}

.gauge__center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:2px;padding:0 60px}
.gauge__phase{
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--ink-3);margin:0 0 6px;min-height:15px;
}
.gauge.is-live .gauge__phase{color:var(--cy);animation:pulse 1.7s ease-in-out infinite}
.gauge.is-up.is-live .gauge__phase{color:var(--sage)}
.gauge__readout{
  font-family:var(--head);font-weight:800;font-size:clamp(46px,9vw,68px);letter-spacing:-.045em;
  line-height:1;margin:0;font-variant-numeric:tabular-nums;
}
.gauge__unit{font-family:var(--mono);font-size:12.5px;color:var(--ink-3);margin:6px 0 0;display:flex;align-items:center;gap:5px}
.unit-arrow{font-size:14px;line-height:1}
.gauge.is-live .unit-arrow{color:var(--cy)}
.gauge.is-up .unit-arrow{color:var(--sage)}

.gauge.is-idle .gauge__readout,
.gauge.is-idle .gauge__unit{display:none}
.start{
  width:150px;height:150px;border-radius:50%;
  border:1.5px solid rgba(33,181,234,.55);background:rgba(33,181,234,.07);
  color:var(--ink);font-family:var(--head);font-weight:800;font-size:20px;letter-spacing:.12em;
  cursor:pointer;display:grid;place-items:center;
  transition:background-color .18s ease,border-color .18s ease,transform .18s ease,color .18s ease;
  animation:breathe 3.4s ease-in-out infinite;
}
.start:hover{background:rgba(33,181,234,.16);border-color:var(--cy);color:#fff;transform:scale(1.03)}
.again{
  margin-top:14px;background:transparent;border:1.5px solid var(--line-2);color:var(--ink);
  font-family:var(--body);font-size:13.5px;font-weight:700;padding:9px 18px;border-radius:999px;cursor:pointer;
  transition:border-color .16s ease,color .16s ease;
}
.again:hover{border-color:var(--cy);color:var(--cy)}

.steps{display:flex;gap:8px;margin-top:26px;flex-wrap:wrap;justify-content:center}
.step{
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-3);border:1px solid var(--line);border-radius:999px;padding:6px 14px;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.step.is-on{color:var(--cy);border-color:rgba(33,181,234,.5);background:rgba(33,181,234,.1)}
.step.is-done{color:var(--sage);border-color:rgba(194,221,180,.35)}
.progress{width:100%;max-width:400px;height:3px;background:var(--line);border-radius:3px;margin-top:18px;overflow:hidden}
.progress__bar{height:100%;width:0;background:linear-gradient(90deg,var(--cy),var(--sage));border-radius:3px;transition:width .3s ease}

/* ─────────── result cards ─────────── */
.results-col{display:flex;flex-direction:column;gap:14px;min-width:0}
.rcards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.rcard{
  background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px 22px 16px;
  position:relative;overflow:hidden;
}
.rcard::after{content:"";position:absolute;left:0;right:0;top:0;height:2px;opacity:.9}
.rcard--dl::after{background:linear-gradient(90deg,var(--cy),transparent)}
.rcard--ul::after{background:linear-gradient(90deg,var(--sage),transparent)}
.rcard__head{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-3);display:flex;align-items:center;gap:7px;
}
.rcard--dl .rcard__arrow{color:var(--cy);font-size:15px}
.rcard--ul .rcard__arrow{color:var(--sage);font-size:15px}
.rcard__value{
  font-family:var(--head);font-weight:800;font-size:clamp(32px,4.2vw,42px);letter-spacing:-.04em;
  line-height:1;margin:10px 0 0;font-variant-numeric:tabular-nums;
}
.rcard__value small{font-family:var(--mono);font-size:12px;font-weight:400;color:var(--ink-3);letter-spacing:0}
.spark{width:100%;height:46px;display:block;margin-top:8px}
.spark__line{fill:none;stroke-width:2;vector-effect:non-scaling-stroke;stroke-linejoin:round;stroke-linecap:round}
.rcard--dl .spark__line{stroke:var(--cy)}
.rcard--ul .spark__line{stroke:var(--sage)}
.rcard--dl .spark__area{fill:rgba(33,181,234,.16)}
.rcard--ul .spark__area{fill:rgba(194,221,180,.14)}
.rcard__foot{font-family:var(--mono);font-size:11.5px;color:var(--ink-3);margin-top:4px}
.rcard__foot b{color:var(--ink-2);font-weight:600}

.lat{display:grid;grid-template-columns:repeat(auto-fit,minmax(148px,1fr));gap:14px}
.lat__card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:16px 18px;display:flex;flex-direction:column;gap:3px}
.lat__k{font-size:12.5px;color:var(--ink-3);letter-spacing:.01em}
.lat__v{font-family:var(--head);font-weight:700;font-size:27px;letter-spacing:-.03em;line-height:1.15;font-variant-numeric:tabular-nums;display:flex;align-items:baseline;gap:5px}
.lat__v small{font-family:var(--mono);font-size:11.5px;font-weight:400;color:var(--ink-3)}
.lat__s{font-family:var(--mono);font-size:11px;color:var(--ink-3)}
.lat__s b{color:var(--ink-2)}
.lat__card--grade[data-grade="A"] .lat__v,.lat__card--grade[data-grade="A+"] .lat__v{color:var(--sage)}
.lat__card--grade[data-grade="B"] .lat__v{color:var(--cy-lite)}
.lat__card--grade[data-grade="C"] .lat__v{color:#ffd27f}
.lat__card--grade[data-grade="D"] .lat__v,.lat__card--grade[data-grade="F"] .lat__v{color:var(--warn)}

/* ─────────── chart ─────────── */
.chart{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:16px 18px 12px}
.chart__head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.legend{display:flex;gap:16px}
.legend__item{font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;display:flex;align-items:center;gap:6px}
.legend__item::before{content:"";width:14px;height:2.5px;border-radius:2px}
.legend__item--dl{color:var(--cy)}
.legend__item--dl::before{background:var(--cy)}
.legend__item--ul{color:var(--sage)}
.legend__item--ul::before{background:var(--sage)}
.tabs{display:flex;gap:3px;background:#0a1015;border-radius:9px;padding:3px}
.tab{
  border:0;cursor:pointer;border-radius:7px;padding:5px 13px;background:transparent;color:var(--ink-3);
  font-family:var(--mono);font-size:11px;font-weight:600;transition:background-color .16s ease,color .16s ease;
}
.tab:hover{color:var(--ink-2)}
.tab.is-on{background:var(--cy);color:#04161d}
.chart__svg{width:100%;height:170px;display:block;margin-top:12px}
.chart__grid line{stroke:#1c2830;stroke-width:1}
.line{fill:none;stroke-width:2.5;vector-effect:non-scaling-stroke;stroke-linejoin:round;stroke-linecap:round}
.line--dl{stroke:var(--cy)}
.line--ul{stroke:var(--sage)}
.area--dl{fill:url(#fillDl)}
.area--ul{fill:url(#fillUl)}
.chart__scale{font-family:var(--mono);font-size:11px;color:var(--ink-3);margin:2px 0 0;text-align:right}
.chart__scale b{color:var(--ink-2)}
.log{height:182px;overflow-y:auto;background:#070c10;border:1px solid var(--line);border-radius:10px;padding:11px 13px;margin-top:12px;font-family:var(--mono);font-size:11.5px;line-height:1.8;color:#8fa7b2}
.log__line{white-space:pre-wrap}

/* ─────────── quality ─────────── */
.h2{font-size:clamp(22px,2.6vw,29px);margin:0}
.h3{font-size:17px;margin:0}
.quality{margin-top:44px}
.qgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;margin-top:20px}
.qcard{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px 18px;display:flex;flex-direction:column;gap:9px}
.qcard__top{display:flex;align-items:center;gap:9px}
.qcard__icon{width:20px;height:20px;flex:none;color:var(--cy)}
.qcard__name{font-size:14.5px;font-weight:700;line-height:1.25}
.qcard__dots{display:flex;gap:5px}
.dot{width:100%;height:4px;border-radius:2px;background:#25333c}
.dot.is-on{background:var(--cy)}
.qcard[data-level="5"] .dot.is-on{background:var(--sage)}
.qcard[data-level="2"] .dot.is-on,.qcard[data-level="1"] .dot.is-on{background:var(--warn)}
.qcard__note{font-family:var(--mono);font-size:11px;color:var(--ink-3);line-height:1.5}

/* ─────────── bottom panels ─────────── */
.bottom{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:16px;margin-top:44px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:26px 28px}
.panel--meaning{display:flex;flex-direction:column}
.detail{margin-top:16px;font-family:var(--mono);font-size:12.5px}
.detail__row{display:flex;justify-content:space-between;gap:18px;padding:9px 0;border-bottom:1px solid var(--line)}
.detail__row:last-child{border-bottom:0}
.detail__k{color:var(--ink-3)}
.detail__v{color:var(--ink);text-align:right}
.meaning{font-size:15.5px;color:var(--ink-2);margin:14px 0 0;line-height:1.65}
.panel__cta{display:flex;flex-direction:column;gap:9px;margin-top:auto;padding-top:22px}

.history{margin-top:16px}
.history__list{margin-top:12px;font-family:var(--mono);font-size:12.5px}
.history__row{display:grid;grid-template-columns:minmax(0,1fr) auto auto auto;gap:18px;padding:9px 0;border-bottom:1px solid var(--line)}
.history__row:last-child{border-bottom:0}
.history__time{color:var(--ink-3)}
.history__dl{color:var(--cy)}
.history__ul{color:var(--sage)}
.history__ping{color:var(--ink-3)}

.note{font-size:13px;color:var(--ink-3);margin:26px 0 0;max-width:82ch;line-height:1.65}

.foot{margin-top:56px;border-top:1px solid var(--line)}
.foot__inner{max-width:1180px;margin:0 auto;padding:30px 24px;display:flex;flex-wrap:wrap;gap:18px;justify-content:space-between;align-items:center;font-size:14px;color:var(--ink-3)}
.foot__inner a{color:var(--ink-2)}
.foot__inner a:hover{color:var(--ink)}

/* ── comprobante imprimible (requisito ARCOTEL) ── */
.sheet{display:none}
@media print{
  body{background:#fff;color:#000}
  body > *:not(.sheet){display:none!important}
  .sheet{display:block;padding:0;font-family:var(--body);color:#000}
  .sheet__head{display:flex;align-items:flex-start;justify-content:space-between;
    gap:20px;padding-bottom:14px;border-bottom:2px solid #000}
  .sheet__brand{font-family:var(--mono);font-size:11px;letter-spacing:.14em;
    text-transform:uppercase;margin:0 0 6px}
  .sheet__title{font-family:var(--head);font-size:21px;font-weight:700;margin:0;letter-spacing:-.01em}
  .sheet__grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 28px;margin:18px 0 22px}
  .sheet__grid dt{font-family:var(--mono);font-size:9.5px;letter-spacing:.1em;
    text-transform:uppercase;color:#555;margin:0}
  .sheet__grid dd{margin:2px 0 0;font-size:12.5px;font-weight:600}
  .sheet__table{width:100%;border-collapse:collapse;font-size:12.5px}
  .sheet__table thead th{text-align:left;font-family:var(--mono);font-size:9.5px;
    letter-spacing:.1em;text-transform:uppercase;color:#555;
    border-bottom:1px solid #000;padding:6px 0}
  .sheet__table tbody th{text-align:left;font-weight:400;padding:7px 0;border-bottom:1px solid #ddd}
  .sheet__table tbody td{text-align:right;font-weight:700;padding:7px 0;border-bottom:1px solid #ddd}
  .sheet__note{font-size:10.5px;color:#444;margin:14px 0 0;line-height:1.5}
  .sheet__foot{font-family:var(--mono);font-size:9px;color:#666;margin:22px 0 0;
    padding-top:10px;border-top:1px solid #ccc}
  @page{margin:16mm}
}

@keyframes pulse{0%,100%{opacity:.45}50%{opacity:1}}
@keyframes breathe{0%,100%{box-shadow:0 0 0 0 rgba(33,181,234,.22)}50%{box-shadow:0 0 0 14px rgba(33,181,234,0)}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

@media (max-width:1040px){
  .instrument{grid-template-columns:minmax(0,1fr);gap:34px;padding:30px 26px 32px}
  .gauge{max-width:360px}
  .head{grid-template-columns:minmax(0,1fr);gap:26px;align-items:start}
  .conn{max-width:420px}
  .bottom{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:720px){
  .wrap{padding:32px 18px 0}
  .nav__links{display:none}
  .nav__inner{padding:11px 18px}
  .rcards{grid-template-columns:minmax(0,1fr)}
  .lat{grid-template-columns:minmax(0,1fr)}
  .instrument{padding:24px 18px 26px}
  .panel{padding:22px 20px}
  .gauge__center{padding:0 44px}
}