/* ============================================================
   SOLVY · Prueba Técnica — sistema "brutal"
   Marca: naranja #F56F10 sobre negro. Type: Archivo (heavy) + Plex.
   ============================================================ */

:root {
  --bg:      #0a0a0b;
  --bg-2:    #0f0f11;
  --panel:   #141416;
  --surface: #191a1d;
  --line:    rgba(255,255,255,.11);
  --line-2:  rgba(255,255,255,.22);

  --text: #F4F4F5;
  --dim:  #b6b8bd;
  --mute: #74767c;

  --brand:   #F56F10;
  --brand-2: #ff8a3d;
  --ink:     #120a02;

  --verde:   #17C964;
  --azul:    #3C97FF;
  --ambar:   #F5A524;
  --magenta: #F4407F;
  --accent:  var(--brand);

  --maxw: 1160px;
  --gut:  clamp(20px, 5vw, 60px);

  --display: "Archivo", system-ui, sans-serif;
  --sans: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
::selection { background: var(--brand); color: #fff; }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gut); }

/* ---------- utilidades mono / labels ---------- */
.kicker { font-family: var(--mono); font-size: .8rem; font-weight: 500; letter-spacing: .2em;
  text-transform: uppercase; color: var(--brand); }
.kicker--dim { color: var(--mute); }
.mono { font-family: var(--mono); }

/* ============================================================ TOPBAR */
.topbar { position: sticky; top: 0; z-index: 60; background: color-mix(in oklab, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.topbar__in { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand img { width: 30px; height: 30px; }
.brand span { font-family: var(--mono); font-weight: 600; font-size: .9rem; letter-spacing: .04em; text-transform: uppercase; }
.brand span b { color: var(--brand); }
.topbar__cta { font-family: var(--mono); font-size: .82rem; font-weight: 600; letter-spacing: .06em;
  text-transform: uppercase; color: var(--ink); background: var(--brand); padding: .5em 1em; border-radius: 6px; }
.topbar__cta:hover { background: var(--brand-2); }

/* ============================================================ HERO */
.hero { position: relative; padding-block: clamp(56px, 11vw, 130px) clamp(40px, 8vw, 90px); overflow: hidden; }
.hero__ring { position: absolute; top: 50%; right: -12%; width: min(58vw, 620px); transform: translateY(-50%);
  opacity: .16; pointer-events: none; z-index: 0; }
.hero__ring svg { width: 100%; height: auto; }
.hero__in { position: relative; z-index: 1; }
.hero__eyebrow { display: inline-flex; align-items: center; gap: 12px; margin-bottom: 28px; }
.hero__eyebrow .bar { width: 40px; height: 2px; background: var(--brand); }

.mega {
  font-family: var(--display); font-weight: 800; font-stretch: 125%;
  font-size: clamp(2.9rem, 11vw, 8.2rem); line-height: .9; letter-spacing: -.02em;
  text-transform: uppercase; text-wrap: balance;
}
.mega em { font-style: normal; color: var(--brand); }
.mega .thin { -webkit-text-stroke: 1.5px var(--text); color: transparent; }

.hero__sub { font-size: clamp(1.1rem, 1.8vw, 1.4rem); color: var(--dim); max-width: 46ch; margin-top: 30px; line-height: 1.5; }
.hero__sub strong { color: var(--text); font-weight: 600; }
.hero__meta { display: flex; flex-wrap: wrap; gap: 10px 26px; margin-top: 36px; }
.hero__meta div { font-family: var(--mono); font-size: .84rem; color: var(--mute); }
.hero__meta b { color: var(--text); font-weight: 600; }

.btn { display: inline-flex; align-items: center; gap: 10px; font-family: var(--mono); font-weight: 600;
  font-size: .92rem; letter-spacing: .04em; text-transform: uppercase; padding: .85em 1.4em; border-radius: 8px;
  border: 1px solid transparent; transition: background .16s, border-color .16s, transform .1s; }
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--brand); color: var(--ink); }
.btn--primary:hover { background: var(--brand-2); }
.btn--ghost { border-color: var(--line-2); color: var(--text); }
.btn--ghost:hover { background: var(--surface); }
.btn .arrow { transition: transform .18s; }
.btn:hover .arrow { transform: translate(2px, 2px); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 40px; }

/* ============================================================ BANDA (el trato) */
.deal { border-block: 1px solid var(--line); background: var(--bg-2); }
.deal__grid { display: grid; gap: 0; grid-template-columns: repeat(3, 1fr); }
.deal__cell { padding: clamp(28px, 4vw, 46px) clamp(20px, 3vw, 40px); border-left: 1px solid var(--line); }
.deal__cell:first-child { border-left: 0; }
.deal__n { font-family: var(--mono); font-size: .78rem; color: var(--brand); letter-spacing: .1em; }
.deal__cell h3 { font-family: var(--display); font-weight: 750; font-size: clamp(1.2rem, 2vw, 1.5rem); margin: 12px 0 8px; text-transform: uppercase; letter-spacing: -.01em; }
.deal__cell p { color: var(--dim); font-size: .95rem; }

/* ============================================================ SECCIÓN GENÉRICA */
.section { padding-block: clamp(52px, 8vw, 96px); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; margin-bottom: clamp(30px, 5vw, 52px); }
.section-title { font-family: var(--display); font-weight: 800; font-stretch: 115%; font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: .98; letter-spacing: -.02em; text-transform: uppercase; text-wrap: balance; }
.section-note { font-size: 1rem; color: var(--dim); max-width: 40ch; }
.section-note strong { color: var(--text); }

/* ============================================================ RETOS (bloques brutales) */
.tracks { border-top: 1px solid var(--line); }
.track { position: relative; display: grid; grid-template-columns: minmax(0,.9fr) minmax(0,1.1fr);
  gap: clamp(20px, 4vw, 56px); padding-block: clamp(32px, 4.5vw, 52px); border-bottom: 1px solid var(--line);
  transition: background .18s; }
.track:hover { background: var(--bg-2); }
.track__id { display: flex; align-items: baseline; gap: 16px; }
.track__num { font-family: var(--display); font-weight: 800; font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: .8; color: transparent; -webkit-text-stroke: 1.5px var(--accent); }
.track__label { font-family: var(--mono); font-size: .8rem; font-weight: 600; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent); }
.track h3 { font-family: var(--display); font-weight: 780; font-stretch: 108%; font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  line-height: 1; letter-spacing: -.015em; text-transform: uppercase; margin-top: 18px; }
.track__one { color: var(--dim); font-size: 1.05rem; margin-top: 16px; max-width: 42ch; }
.track__stack { font-family: var(--mono); font-size: .8rem; color: var(--mute); margin-top: 20px; }
.track__stack b { color: var(--text); }

.track__reqs { list-style: none; padding: 0; display: grid; gap: 12px; align-self: center; }
.track__reqs li { position: relative; padding-left: 30px; color: var(--dim); }
.track__reqs li::before { content: ""; position: absolute; left: 0; top: .5em; width: 13px; height: 13px;
  border: 2px solid var(--accent); transform: rotate(45deg); }
.track__reqs li strong { color: var(--text); font-weight: 600; }
.track__reqs .head { padding-left: 0; font-family: var(--mono); font-size: .74rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--mute); }
.track__reqs .head::before { display: none; }

.track[data-c="frontend"] { --accent: var(--azul); }
.track[data-c="backend"]  { --accent: var(--verde); }
.track[data-c="movil"]    { --accent: var(--magenta); }
.track[data-c="scraper"]  { --accent: var(--ambar); }

/* ============================================================ PARTE 1 destacada */
.track--main { background: linear-gradient(120deg, rgba(245,111,16,.09), transparent 58%); }
.track--main .track__num { -webkit-text-stroke: 2px var(--brand); }

/* ============================================================ PARTE 2 · elección */
.choose { display: flex; align-items: center; gap: 16px; margin: clamp(34px, 5vw, 56px) 0 22px;
  font-family: var(--mono); font-size: .82rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--mute); }
.choose .n { color: var(--brand); }
.choose::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.choices { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.choice { position: relative; border: 1px solid var(--line); border-top: 3px solid var(--accent);
  background: var(--panel); padding: clamp(24px, 3vw, 34px); transition: background .18s; }
.choice:hover { background: var(--bg-2); }
.choice__label { font-family: var(--mono); font-size: .78rem; font-weight: 600; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent); }
.choice h4 { font-family: var(--display); font-weight: 780; font-stretch: 108%; font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1; letter-spacing: -.015em; text-transform: uppercase; margin: 12px 0 14px; }
.choice__one { color: var(--dim); }
.choice__stack { font-family: var(--mono); font-size: .78rem; color: var(--mute); margin-top: 16px; }
.choice__stack b { color: var(--text); }
.choice .track__reqs { margin-top: 24px; }

/* ============================================================ FASE OPCIONAL */
.section--optional { border-top: 1px dashed var(--line-2); }
.optional-eyebrow { display: inline-flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.optional-eyebrow .bar { width: 30px; height: 2px; background: var(--brand); }
.invite { border: 1px dashed var(--line-2); padding: clamp(30px, 4vw, 50px); margin-top: clamp(28px, 4vw, 44px); background: rgba(245,111,16,.03); }
.invite p { font-family: var(--display); font-weight: 650; font-stretch: 106%; font-size: clamp(1.5rem, 3.4vw, 2.5rem);
  line-height: 1.12; letter-spacing: -.015em; text-wrap: balance; }
.invite p em { font-style: normal; color: var(--brand); }
.invite small { display: block; margin-top: 20px; font-family: var(--sans); font-weight: 400; font-size: 1.02rem;
  line-height: 1.55; letter-spacing: 0; color: var(--dim); max-width: 56ch; }

/* nota "qué no evaluamos" */
.notline { margin-top: clamp(30px, 4vw, 46px); border-left: 3px solid var(--brand); padding: 4px 0 4px 22px; }
.notline b { font-family: var(--mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--brand); display: block; margin-bottom: 8px; }
.notline p { color: var(--dim); max-width: 60ch; }
.notline p strong { color: var(--text); }

/* ============================================================ CIERRE (evaluar + entregar) */
.close { background: var(--brand); color: var(--ink); }
.close .section-title { color: var(--ink); }
.close__grid { display: grid; gap: clamp(28px, 5vw, 60px); grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.close h3 { font-family: var(--display); font-weight: 800; font-size: 1.3rem; text-transform: uppercase; letter-spacing: -.01em;
  padding-bottom: 14px; border-bottom: 2px solid rgba(18,10,2,.25); }
.close ul { list-style: none; padding: 0; display: grid; gap: 12px; margin-top: 20px; }
.close li { position: relative; padding-left: 26px; color: #3a2408; font-weight: 500; }
.close li::before { content: "→"; position: absolute; left: 0; font-family: var(--mono); font-weight: 700; }
.close__foot { margin-top: clamp(40px, 5vw, 60px); font-family: var(--mono); font-size: 1rem; color: var(--ink);
  border-top: 2px solid rgba(18,10,2,.25); padding-top: 26px; }
.close__foot b { font-weight: 700; }

/* ============================================================ FOOT */
.foot { padding-block: 40px; border-top: 1px solid var(--line); }
.foot__in { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between; }
.foot small { font-family: var(--mono); font-size: .8rem; color: var(--mute); letter-spacing: .04em; }

/* ============================================================ RESPONSIVE */
@media (max-width: 820px) {
  .deal__grid { grid-template-columns: 1fr; }
  .deal__cell { border-left: 0; border-top: 1px solid var(--line); }
  .deal__cell:first-child { border-top: 0; }
  .track { grid-template-columns: 1fr; }
  .choices { grid-template-columns: 1fr; }
  .hero__ring { opacity: .1; right: -30%; }
}

/* ============================================================ A11Y / MOTION */
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }
[data-reveal] { opacity: 1; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }