/* ============================================================================
   ANDRÉS HUESTIK — brand layer sobre scrollcraft.css
   Sistema: negro profundo · verde lámpara (acento) · violeta (profundidad)
   Tipos:   Poppins (voz) · Pinyon Script (1–2 palabras de énfasis)
   ========================================================================== */

:root {
  --sc-canvas:     #050608;
  --sc-surface:    #0c0f12;
  --sc-ink:        #f2f4f1;
  --sc-ink-soft:   #9aa8a0;
  --sc-accent:     #46e88d;   /* el verde de las lámparas del estudio */
  --sc-accent-ink: #041108;

  --hx-violet:      #7c5cf6;
  --hx-violet-deep: #140a24;
  --hx-glow-g: rgba(70, 232, 141, 0.16);
  --hx-glow-v: rgba(124, 92, 246, 0.22);

  --sc-font-display: "Poppins", system-ui, sans-serif;
  --sc-font-text:    "Poppins", system-ui, sans-serif;
  --hx-script:       "Pinyon Script", cursive;

  --tl-h: 58px; /* alto de la timeline inferior */
}

html { scrollbar-color: var(--sc-accent) var(--sc-surface); }
body { padding-bottom: var(--tl-h); }

.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; border:0; }
.skip { position:fixed; left:1rem; top:-4rem; z-index:120; background:var(--sc-accent); color:var(--sc-accent-ink); padding:.6rem 1rem; border-radius:var(--sc-r-sm); font-weight:600; transition:top .2s; }
.skip:focus-visible { top:1rem; }

.tint { color: var(--sc-accent); }
.script {
  font-family: var(--hx-script);
  font-weight: 400;
  color: var(--sc-accent);
  font-style: normal;
  font-size: 1.28em;
  line-height: .8;
  text-shadow: 0 0 22px var(--hx-glow-g), 0 0 60px rgba(70,232,141,.25);
}

:focus-visible { outline: 2px solid var(--sc-accent); outline-offset: 3px; border-radius: 4px; }

/* ------------------------------------------------------------------ nav -- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 90;
  display: flex; align-items: center; justify-content: space-between;
  padding: .9rem var(--sc-gutter);
  background: linear-gradient(to bottom, rgba(5,6,8,.85), rgba(5,6,8,0));
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
}
.nav__mark { display:flex; align-items:baseline; gap:.3rem; text-decoration:none; }
.nav__initials { font-weight:700; font-size:1.15rem; letter-spacing:var(--sc-track-tight); color:var(--sc-ink); }
.nav__dot { width:.45rem; height:.45rem; border-radius:50%; background:var(--sc-accent); box-shadow:0 0 10px var(--sc-accent); }
.nav__links { display:flex; align-items:center; gap:1.6rem; }
.nav__links a { color:var(--sc-ink-soft); text-decoration:none; font-size:var(--sc-t-sm); font-weight:500; transition:color .18s; }
.nav__links a:hover { color:var(--sc-ink); }
.nav__cta {
  color:var(--sc-accent-ink) !important; background:var(--sc-accent);
  padding:.55rem 1.05rem; border-radius:var(--sc-r-pill); font-weight:600;
  box-shadow:0 0 0 0 rgba(70,232,141,.4); transition:box-shadow .25s, transform .18s;
}
.nav__cta:hover { box-shadow:0 0 24px 2px rgba(70,232,141,.35); transform:translateY(-1px); }
.nav__burger { display:none; }

/* ----------------------------------------------------------------- hero -- */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: center;
  padding: calc(var(--sc-section) + 3rem) var(--sc-gutter) var(--sc-section);
  overflow: clip; isolation: isolate;
}
.hero__nebula {
  position:absolute; inset:-20%; z-index:-3; pointer-events:none;
  background:
    radial-gradient(42% 55% at 78% 20%, var(--hx-glow-v), transparent 70%),
    radial-gradient(38% 48% at 12% 78%, var(--hx-glow-g), transparent 70%),
    radial-gradient(30% 40% at 85% 85%, rgba(124,92,246,.12), transparent 70%);
  transform: translate3d(calc((var(--sc-mx,.5) - .5) * -2.5%), calc((var(--sc-my,.5) - .5) * -2.5%), 0);
  transition: transform .12s linear;
}
.hero__nodes { position:absolute; inset:0; z-index:-2; width:100%; height:100%; opacity:.85; }
.hero__sizzle { position:absolute; inset:0; z-index:-4; width:100%; height:100%; object-fit:cover; opacity:.5; }
.hero__scrim {
  position:absolute; inset:0; z-index:-1; pointer-events:none;
  background:
    linear-gradient(to right, rgba(5,6,8,.88) 0%, rgba(5,6,8,.55) 45%, rgba(5,6,8,.15) 100%),
    linear-gradient(to top, rgba(5,6,8,.9), transparent 40%);
}
.hero__content { max-width: 46rem; }
.hero__title {
  font-size: var(--sc-t-4xl); font-weight: 700;
  letter-spacing: var(--sc-track-tight); line-height: var(--sc-leading-none);
  margin: 0 0 1.4rem;
}
.hero__line { display: block; }
.hero__line .script { font-size: 1.18em; }
.hero__cursor {
  display:inline-block; width:.09em; height:.82em; margin-left:.12em;
  background: var(--sc-accent); vertical-align:-0.06em;
  animation: blink 1.1s steps(1) infinite;
  box-shadow: 0 0 14px var(--sc-accent);
}
@keyframes blink { 50% { opacity: 0; } }
.hero__sub {
  font-size: var(--sc-t-lg); font-weight: 300;
  color: var(--sc-ink-soft); max-width: 40rem;
  line-height: var(--sc-leading-body); margin: 0 0 2.2rem;
}
.hero__sub strong { color: var(--sc-ink); font-weight: 600; }
.hero__actions { display:flex; gap:1rem; flex-wrap:wrap; }

/* -------------------------------------------------------------- buttons -- */
.btn {
  display:inline-flex; align-items:center; gap:.55rem;
  font: 600 var(--sc-t-base)/1 var(--sc-font-text);
  padding: .95rem 1.5rem; border-radius: var(--sc-r-pill);
  text-decoration:none; cursor:pointer; border:1px solid transparent;
  transition: transform .18s, box-shadow .25s, background .2s, border-color .2s;
}
.btn--sm { padding:.7rem 1.15rem; font-size:var(--sc-t-sm); }
.btn--solid { background: var(--sc-accent); color: var(--sc-accent-ink); }
.btn--solid:hover { transform: translateY(-2px); box-shadow: 0 8px 30px -6px rgba(70,232,141,.45); }
.btn--ghost { color: var(--sc-ink); border-color: var(--sc-hairline-strong); background: rgba(255,255,255,.02); }
.btn--ghost:hover { border-color: var(--sc-accent); color: var(--sc-accent); transform: translateY(-2px); }
.btn__play { font-size:.72em; translate:0 -1px; }
.btn[aria-disabled="true"] { opacity:.45; cursor:not-allowed; transform:none !important; box-shadow:none !important; }

/* -------------------------------------------------------------- results -- */
.results { padding: var(--sc-section) var(--sc-gutter); border-block: 1px solid var(--sc-hairline); }
.results__list {
  list-style:none; margin:0 auto; padding:0; max-width:var(--sc-maxw);
  display:grid; grid-template-columns:repeat(auto-fit, minmax(190px, 1fr)); gap:2.2rem 2.6rem;
}
.results__item { display:grid; gap:.45rem; align-content:start; }
.results__num {
  font-size: var(--sc-t-2xl); font-weight:700; letter-spacing:var(--sc-track-tight);
  color: var(--sc-ink); line-height:1;
}
.results__num [data-sc-count] { color: var(--sc-accent); }
.results__label { font-size:var(--sc-t-sm); color:var(--sc-ink-soft); max-width:24ch; line-height:1.45; }

/* ----------------------------------------------------------- categorías -- */
.cat { padding-top: var(--sc-section); }
.cat__head { max-width:var(--sc-maxw); margin:0 auto; padding:0 var(--sc-gutter) 2.4rem; }
.cat__title { font-size:var(--sc-t-3xl); font-weight:700; letter-spacing:var(--sc-track-tight); line-height:var(--sc-leading-tight); margin:0 0 .7rem; }
.cat__line { font-size:var(--sc-t-lg); font-weight:300; color:var(--sc-ink-soft); margin:0; max-width:52ch; }

/* tarjetas de video */
.card {
  position:relative; display:block; border-radius:var(--sc-r-md); overflow:hidden;
  background:var(--sc-surface); border:1px solid var(--sc-hairline);
  aspect-ratio:16/9; cursor:pointer; text-align:left; padding:0; color:inherit;
  transition: transform .22s, border-color .22s, box-shadow .25s;
}
.card:hover { transform: translateY(-4px); border-color: rgba(70,232,141,.55); box-shadow: var(--sc-e2), 0 0 34px -8px rgba(70,232,141,.35); }
.card__thumb { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.card__ph {
  position:absolute; inset:0; display:grid; place-items:center;
  background:
    radial-gradient(60% 80% at 20% 15%, rgba(124,92,246,.22), transparent 65%),
    radial-gradient(55% 70% at 85% 90%, rgba(70,232,141,.14), transparent 60%),
    var(--sc-surface);
}
.card__ph::after {
  content:""; position:absolute; inset:0;
  background: repeating-linear-gradient(115deg, transparent 0 22px, rgba(255,255,255,.025) 22px 23px);
}
.card__glyph {
  width:3.1rem; height:3.1rem; border-radius:50%;
  display:grid; place-items:center;
  border:1px solid rgba(70,232,141,.5); color:var(--sc-accent);
  font-size:1rem; background:rgba(5,6,8,.55);
  transition: transform .22s, box-shadow .22s;
}
.card:hover .card__glyph { transform:scale(1.12); box-shadow:0 0 26px rgba(70,232,141,.4); }
.card__meta {
  position:absolute; inset:auto 0 0 0; padding:2.4rem 1rem .85rem;
  background:linear-gradient(to top, rgba(4,5,7,.92), transparent);
  display:grid; gap:.15rem;
}
.card__title { font-size:var(--sc-t-base); font-weight:600; color:var(--sc-ink); line-height:1.25; }
.card__note { font-size:var(--sc-t-xs); color:var(--sc-ink-soft); }
.card__badge {
  position:absolute; top:.8rem; left:.8rem; z-index:2;
  font-size:.68rem; font-weight:600; letter-spacing:.04em;
  color:var(--sc-accent); border:1px solid rgba(70,232,141,.45);
  background:rgba(5,6,8,.6); padding:.28rem .6rem; border-radius:var(--sc-r-pill);
}
.card iframe, .card video.card__player { position:absolute; inset:0; width:100%; height:100%; border:0; }

/* rail horizontal (ads) */
.rail__stage { display:flex; align-items:center; overflow:hidden; }
.rail { display:flex; gap:1.6rem; padding:0 var(--sc-gutter); will-change:transform; }
.rail .card { flex:0 0 clamp(300px, 44vw, 560px); }

/* pila destacada (ai, design) */
.featured-stack, .featured-wide, .grid { max-width:var(--sc-maxw); margin:0 auto; padding:0 var(--sc-gutter); }
.featured-stack { display:grid; grid-template-columns:repeat(auto-fit, minmax(min(100%,340px),1fr)); gap:1.6rem; margin-bottom:1.6rem; }
.featured-wide { display:grid; gap:1.6rem; margin-bottom:1.6rem; }
.featured-wide .card { aspect-ratio:21/9; }

/* AI split con header sticky */
.cat__split { display:grid; grid-template-columns:minmax(280px,1fr) 2fr; gap:2.5rem; max-width:var(--sc-maxw); margin:0 auto; padding:0 var(--sc-gutter); }
.cat__split .cat__head { padding:0; }
.cat__head--sticky { position:sticky; top:6.5rem; align-self:start; }
.cat--ai .cat__body { min-width:0; }

/* music index (pinned) */
.music__stage { display:flex; flex-direction:column; justify-content:center; gap:2rem; padding:0 var(--sc-gutter); max-width:var(--sc-maxw); margin:0 auto; width:100%; }
.music__stage .cat__head { padding:0; }
.music__index { display:grid; border-top:1px solid var(--sc-hairline); }
.mrow {
  display:flex; align-items:center; justify-content:space-between; gap:1.5rem;
  padding:1.35rem .4rem; border-bottom:1px solid var(--sc-hairline);
  background:none; border-left:0; border-right:0; border-top:0; color:inherit;
  cursor:pointer; text-align:left; width:100%;
  transition: padding-left .22s, background .22s;
}
.mrow:hover { padding-left:1.2rem; background:linear-gradient(to right, rgba(70,232,141,.07), transparent 60%); }
.mrow__title { font-size:var(--sc-t-xl); font-weight:600; letter-spacing:var(--sc-track-snug); }
.mrow__note { font-size:var(--sc-t-sm); color:var(--sc-ink-soft); white-space:nowrap; }
.mrow__play { color:var(--sc-accent); font-size:.9rem; opacity:0; transform:translateX(-6px); transition:opacity .2s, transform .2s; }
.mrow:hover .mrow__play { opacity:1; transform:none; }

/* sound wave */
.wave { display:block; width:min(100%, var(--sc-maxw)); height:110px; margin:0 auto 2rem; padding:0 var(--sc-gutter); box-sizing:border-box; }

/* grid general */
.grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(min(100%,270px),1fr)); gap:1.3rem; padding-bottom:.5rem; }
.grid--tight { grid-template-columns:repeat(auto-fill, minmax(min(100%,220px),1fr)); }
.grid:empty { display:none; }

/* ---------------------------------------------------------------- about -- */
.about { padding: var(--sc-section) var(--sc-gutter); }
.about__split { display:grid; grid-template-columns:minmax(260px,.8fr) 1.4fr; gap:3.5rem; max-width:var(--sc-maxw); margin:0 auto; align-items:start; }
.about__portrait { margin:0; }
.about__frame {
  position:relative; aspect-ratio:4/5; border-radius:var(--sc-r-lg);
  background:
    radial-gradient(70% 60% at 30% 20%, rgba(124,92,246,.25), transparent 65%),
    radial-gradient(60% 60% at 80% 85%, rgba(70,232,141,.18), transparent 60%),
    var(--sc-surface);
  border:1px solid var(--sc-hairline-strong);
  display:grid; place-items:center; overflow:hidden;
  box-shadow: var(--sc-e3);
}
.about__frame::after {
  content:""; position:absolute; inset:0;
  background: repeating-linear-gradient(0deg, transparent 0 3px, rgba(0,0,0,.14) 3px 4px);
  mix-blend-mode:multiply; pointer-events:none;
}
.about__monogram { font-size:clamp(5rem, 12vw, 9rem); }
.about__rec {
  position:absolute; top:1rem; right:1rem; display:flex; align-items:center; gap:.4rem;
  font-size:.7rem; font-weight:600; letter-spacing:.1em; color:var(--sc-ink-soft);
}
.about__rec i { width:.55rem; height:.55rem; border-radius:50%; background:#ff4d5e; box-shadow:0 0 10px #ff4d5e; animation:blink 1.6s steps(1) infinite; }
.about__title { font-size:var(--sc-t-2xl); font-weight:700; letter-spacing:var(--sc-track-tight); line-height:var(--sc-leading-tight); margin:0 0 1.4rem; }
.about__text p { max-width:58ch; color:var(--sc-ink-soft); font-weight:300; margin:0 0 1.05rem; }
.about__text p:first-of-type { color:var(--sc-ink); font-weight:400; }
.about__tools { list-style:none; display:flex; flex-wrap:wrap; gap:.55rem; padding:0; margin:1.7rem 0 .9rem; }
.about__tools li {
  font-size:var(--sc-t-xs); font-weight:500; color:var(--sc-ink);
  border:1px solid var(--sc-hairline-strong); border-radius:var(--sc-r-pill);
  padding:.42rem .8rem; transition:border-color .2s, color .2s;
}
.about__tools li:hover { border-color:var(--sc-accent); color:var(--sc-accent); }
.about__certs { font-size:var(--sc-t-xs); color:var(--sc-ink-soft); margin:0 0 1.6rem; }

/* ------------------------------------------------------------------ cta -- */
.cta { padding: calc(var(--sc-section) * 1.15) var(--sc-gutter); text-align:center;
  background: radial-gradient(60% 70% at 50% 110%, rgba(70,232,141,.10), transparent 70%); }
.cta__inner { max-width: 56rem; margin:0 auto; }
.cta__title { font-size:var(--sc-t-3xl); font-weight:700; letter-spacing:var(--sc-track-tight); line-height:var(--sc-leading-tight); margin:0 0 1.2rem; }
.cta__l1, .cta__l2 { display:block; }
.cta__l2 { margin-top:.2em; }
.cta__line { color:var(--sc-ink-soft); font-weight:300; font-size:var(--sc-t-lg); margin:0 0 2.4rem; }
.cta__actions { display:flex; gap:.9rem; flex-wrap:wrap; justify-content:center; }

.footer {
  display:flex; gap:.7rem; justify-content:center; align-items:center; flex-wrap:wrap;
  padding: 2rem var(--sc-gutter) 2.6rem; color:var(--sc-ink-soft); font-size:var(--sc-t-xs);
  border-top:1px solid var(--sc-hairline);
}
.footer a { color:var(--sc-ink-soft); }
.footer a:hover { color:var(--sc-accent); }
.footer__sep { opacity:.5; }

/* ------------------------------------------------- timeline (signature) -- */
.tl {
  position:fixed; left:0; right:0; bottom:0; height:var(--tl-h); z-index:100;
  background:rgba(7,8,10,.92); -webkit-backdrop-filter:blur(10px); backdrop-filter:blur(10px);
  border-top:1px solid var(--sc-hairline-strong);
  display:flex; align-items:stretch; user-select:none; touch-action:none;
}
.tl__track { position:relative; flex:1; display:flex; }
.tl__seg {
  position:relative; display:grid; place-items:center;
  background:none; border:0; border-right:1px solid var(--sc-hairline);
  color:var(--sc-ink-soft); font:500 .68rem/1 var(--sc-font-text);
  letter-spacing:.03em; cursor:pointer; min-width:0; overflow:hidden;
  transition: color .2s, background .2s;
}
.tl__seg:last-child { border-right:0; }
.tl__seg::before {
  content:""; position:absolute; left:6%; right:6%; top:9px; height:3px; border-radius:2px;
  background: var(--sc-hairline-strong); transition: background .2s, box-shadow .2s;
}
.tl__seg:hover { color:var(--sc-ink); background:rgba(255,255,255,.03); }
.tl__seg.is-active { color:var(--sc-accent); }
.tl__seg.is-active::before { background:var(--sc-accent); box-shadow:0 0 10px rgba(70,232,141,.6); }
.tl__seg span { padding:10px 6px 0; white-space:nowrap; text-overflow:ellipsis; overflow:hidden; max-width:100%; }
.tl__head {
  position:absolute; top:0; bottom:0; width:2px; background:var(--sc-accent);
  box-shadow:0 0 12px var(--sc-accent); pointer-events:none; z-index:2;
}
.tl__head::after {
  content:""; position:absolute; top:-1px; left:50%; translate:-50% 0;
  border:6px solid transparent; border-top-color:var(--sc-accent);
}
.tl__tc {
  flex:0 0 auto; display:grid; place-items:center; padding:0 .9rem;
  font:600 .72rem/1 var(--sc-font-mono, monospace); color:var(--sc-accent);
  border-left:1px solid var(--sc-hairline-strong); letter-spacing:.06em;
  font-variant-numeric: tabular-nums; min-width:5.6rem;
}

/* ---------------------------------------------------------------- modal -- */
.modal {
  position:fixed; inset:0; z-index:140; display:grid; place-items:center;
  background:rgba(3,4,5,.9); -webkit-backdrop-filter:blur(8px); backdrop-filter:blur(8px);
  padding: clamp(1rem, 4vw, 3rem);
}
.modal[hidden] { display:none; }
.modal__frame { width:min(92vw, 1080px); aspect-ratio:16/9; background:#000; border-radius:var(--sc-r-md); overflow:hidden; box-shadow:var(--sc-e3), 0 0 60px rgba(70,232,141,.15); }
.modal__frame iframe, .modal__frame video { width:100%; height:100%; border:0; display:block; }
.modal__empty { display:grid; place-items:center; height:100%; color:var(--sc-ink-soft); font-size:var(--sc-t-base); padding:2rem; text-align:center; }
.modal__close {
  position:absolute; top:1.1rem; right:1.2rem; width:2.8rem; height:2.8rem;
  border-radius:50%; border:1px solid var(--sc-hairline-strong);
  background:rgba(255,255,255,.04); color:var(--sc-ink); font-size:1rem; cursor:pointer;
  transition:border-color .2s, color .2s, transform .2s;
}
.modal__close:hover { border-color:var(--sc-accent); color:var(--sc-accent); transform:rotate(90deg); }

.noscript { position:fixed; inset:auto 0 0 0; background:#20140a; color:#f5d9b8; padding:1rem; text-align:center; z-index:200; }

/* ----------------------------------------------------------- responsive -- */
@media (max-width: 980px) {
  .cat__split, .about__split { grid-template-columns:1fr; }
  .cat__head--sticky { position:static; }
  .about__portrait { max-width:340px; }
}
@media (max-width: 860px) {
  :root { --tl-h: 46px; }
  .nav__links {
    position:fixed; inset:0; flex-direction:column; justify-content:center; gap:2.2rem;
    background:rgba(5,6,8,.97); transform:translateY(-102%); transition:transform .3s ease;
  }
  .nav__links a { font-size:var(--sc-t-xl); }
  .nav.is-open .nav__links { transform:none; }
  .nav__burger {
    display:grid; place-items:center; width:2.7rem; height:2.7rem; z-index:2;
    background:none; border:1px solid var(--sc-hairline-strong); border-radius:var(--sc-r-sm); cursor:pointer;
  }
  .nav__burger-line, .nav__burger-line::before, .nav__burger-line::after {
    content:""; display:block; width:1.15rem; height:2px; background:var(--sc-ink); border-radius:2px;
    transition:transform .25s, opacity .2s;
  }
  .nav__burger-line { position:relative; }
  .nav__burger-line::before { position:absolute; top:-6px; }
  .nav__burger-line::after { position:absolute; top:6px; }
  .nav.is-open .nav__burger-line { background:transparent; }
  .nav.is-open .nav__burger-line::before { transform:translateY(6px) rotate(45deg); }
  .nav.is-open .nav__burger-line::after { transform:translateY(-6px) rotate(-45deg); }

  .rail .card { flex-basis:78vw; }
  .mrow__note { display:none; }
  .tl__seg span { display:none; }
  .tl__seg.is-active span { display:block; font-size:.62rem; }
  .tl__tc { min-width:4.6rem; padding:0 .6rem; }
  .hero__actions .btn { flex:1 1 100%; justify-content:center; }
}

@media (prefers-reduced-motion: reduce) {
  .hero__cursor, .about__rec i { animation:none; }
  .hero__nebula { transform:none; transition:none; }
  .card:hover, .btn:hover { transform:none; }
}