/* =========================================================
   Landing · MAINE
   Base sobria y neutra; el acento se reserva para los hitos
   (curva de evolución, CTAs y métricas).
   ========================================================= */

:root {
  --bg: #f7f6f3;
  --surface: #ffffff;
  --tint: #efede8;
  --ink: #17171a;
  --ink-2: #3d3d42;
  --muted: #6c6b67;
  --line: #e2e0da;

  --dark: #131315;
  --dark-2: #1d1d20;
  --dark-line: #2e2e33;
  --on-dark: #f3f2ee;
  --on-dark-muted: #a3a29d;

  --accent: #ff5f2e;
  --accent-ink: #e0491b;
  --accent-soft: #fff0ea;

  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 1px 2px rgba(20, 20, 20, .04), 0 8px 24px rgba(20, 20, 20, .06);

  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-head: "Inter Tight", "Inter", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 {
  font-family: var(--font-head);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0;
  text-wrap: balance;
}
h1 { font-size: clamp(2.3rem, 4.6vw, 3.6rem); font-weight: 800; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.7rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0; }

.container { width: min(1160px, 100% - 40px); margin-inline: auto; }

.hl { color: var(--accent-ink); }

.eyebrow {
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}
.eyebrow--accent { color: var(--accent); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font: 600 1rem/1 var(--font);
  text-decoration: none;
  border-radius: 999px;
  padding: 14px 22px;
  border: 1.5px solid transparent;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.btn span { transition: transform .15s ease; }
.btn:hover span { transform: translateX(3px); }
.btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 20px rgba(255, 95, 46, .32);
}
.btn--primary:hover { background: var(--accent-ink); transform: translateY(-1px); box-shadow: 0 10px 28px rgba(255, 95, 46, .4); }
.btn--ghost { border-color: var(--line); color: var(--ink); background: var(--surface); }
.btn--ghost:hover { border-color: var(--ink); }
.btn--sm { padding: 10px 16px; font-size: .9rem; box-shadow: none; }
.btn--lg { padding: 17px 26px; font-size: 1.04rem; }
.btn--xl { padding: 21px 34px; font-size: 1.15rem; }
.btn:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(247, 246, 243, .86);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav__inner { display: flex; align-items: center; gap: 32px; height: 112px; }
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font: 700 1.05rem var(--font-head); text-decoration: none; letter-spacing: -0.01em;
}
.brand__mark {
  width: 22px; height: 22px; border-radius: 6px;
  background: linear-gradient(135deg, var(--ink) 0 50%, var(--accent) 50% 100%);
}
.brand { font-size: clamp(2rem, 4.6vw, 3.6rem); gap: .4em; }
.brand__logo { width: 1.5em; height: 1.5em; flex: none; }
.brand__txt { display: flex; flex-direction: column; line-height: 1; font: 800 1em/1 var(--font); letter-spacing: -0.025em; }
.brand__txt small { font: 500 .44em/1 var(--font); letter-spacing: 0; color: var(--muted); margin-top: .22em; }
.brand--light .brand__txt small { color: var(--on-dark-muted); }
.nav__links { display: flex; gap: 26px; margin-left: auto; }
.nav__links a { text-decoration: none; font-size: .93rem; color: var(--ink-2); }
.nav__links a:hover { color: var(--ink); }

/* ---------- Hero ---------- */
.hero { padding: 84px 0 96px; }
.hero__grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 64px; align-items: center; }
.hero h1 { margin-bottom: 22px; }
.lead { font-size: 1.16rem; color: var(--ink-2); max-width: 36em; }
.hero__ctas { display: flex; flex-wrap: wrap; gap: 12px; margin: 34px 0 26px; }
.trust { display: flex; flex-wrap: wrap; gap: 8px 22px; padding: 0; margin: 0; list-style: none; font-size: .9rem; color: var(--muted); }
.trust li { display: inline-flex; align-items: center; gap: 8px; }
.trust li::before {
  content: ""; width: 16px; height: 16px; border-radius: 50%;
  background: var(--ink) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.3l2.2 2.2 4.8-5' fill='none' stroke='white' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/100% no-repeat;
}

.hero__visual { position: relative; }
.dash {
  background: var(--dark);
  color: var(--on-dark);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 30px 60px -20px rgba(20, 20, 20, .35);
  transform: rotate(-1.2deg);
}
.dash__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.dash__title { font: 600 .95rem var(--font-head); }
.dash__live { font-size: .75rem; color: var(--on-dark-muted); display: inline-flex; align-items: center; gap: 6px; }
.dash__live i { width: 7px; height: 7px; border-radius: 50%; background: #3ddc84; box-shadow: 0 0 0 4px rgba(61, 220, 132, .18); }
.dash__kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 14px; }
.dash__kpis div { background: var(--dark-2); border: 1px solid var(--dark-line); border-radius: 10px; padding: 12px; }
.dash__kpis small, .dash__chart small { display: block; font-size: .7rem; color: var(--on-dark-muted); margin-bottom: 6px; }
.dash__kpis strong { display: block; font: 700 1.1rem var(--font-head); letter-spacing: -0.01em; }
.dash__kpis em { font-style: normal; font-size: .72rem; color: var(--on-dark-muted); }
.dash__kpis em.up { color: #3ddc84; }
.dash__chart { background: var(--dark-2); border: 1px solid var(--dark-line); border-radius: 10px; padding: 12px; }
.bars { display: flex; align-items: flex-end; gap: 8px; height: 110px; }
.bars span { flex: 1; background: #3a3a40; border-radius: 4px 4px 2px 2px; }
.bars span.is-now { background: var(--accent); }
.dash__badge {
  position: absolute; left: -26px; bottom: -30px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  padding: 12px 16px; max-width: 240px; font-size: .84rem; line-height: 1.35; color: var(--ink-2);
  box-shadow: var(--shadow);
}
.dash__badge span { display: block; font: 700 .72rem var(--font); letter-spacing: .1em; text-transform: uppercase; color: var(--accent-ink); margin-bottom: 3px; }

/* ---------- Secciones genéricas ---------- */
.section { padding: 104px 0; }
.section--tint { background: var(--tint); }
.section__head { max-width: 760px; margin-bottom: 52px; }
.section__sub { margin-top: 16px; font-size: 1.1rem; color: var(--muted); }
.section__head--light .section__sub { color: var(--on-dark-muted); }

/* ---------- Problema ---------- */
.pains { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.pain {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px;
}
.pain__num { display: block; font: 700 .85rem var(--font-head); color: var(--muted); margin-bottom: 26px; }
.pain h3 { margin-bottom: 12px; }
.pain p { font-size: .96rem; color: var(--muted); }
.pains__close { margin-top: 44px; font-size: 1.3rem; font-family: var(--font-head); letter-spacing: -0.01em; color: var(--ink-2); }
.pains__close strong { color: var(--ink); }

/* ---------- Curva de evolución (hito) ---------- */
.evo {
  background: var(--dark);
  color: var(--on-dark);
  padding: 112px 0 104px;
  position: relative;
  overflow: hidden;
}
.evo::before {
  content: ""; position: absolute; inset: auto -10% -40% auto; width: 70%; height: 90%;
  background: radial-gradient(closest-side, rgba(255, 95, 46, .16), transparent);
  pointer-events: none;
}
.evo .container { position: relative; }
.curve { position: relative; margin-top: 12px; }
.curve__line { position: absolute; top: 0; left: 0; width: 100%; height: 190px; overflow: visible; }
.curve__path { fill: none; stroke-width: 3; stroke-linecap: round; }

.stages { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); position: relative; }
.stage { position: relative; padding: 0 10px; }
.stage--1 { margin-top: 170px; }
.stage--2 { margin-top: 140px; }
.stage--3 { margin-top: 85px; }
.stage--4 { margin-top: 0; }
.stage__dot {
  display: block; width: 16px; height: 16px; margin: 0 auto 22px;
  border-radius: 50%; background: var(--dark); border: 3px solid #6b6b70;
  position: relative; z-index: 1;
}
.stage--2 .stage__dot { border-color: #8f6a5c; }
.stage--3 .stage__dot { border-color: #c4664a; }
.stage--4 .stage__dot {
  width: 22px; height: 22px; margin-top: -3px; margin-bottom: 19px;
  background: var(--accent); border-color: var(--accent);
  box-shadow: 0 0 0 7px rgba(255, 95, 46, .22), 0 0 30px rgba(255, 95, 46, .6);
}
.stage__card {
  background: var(--dark-2); border: 1px solid var(--dark-line);
  border-radius: var(--radius); padding: 22px 20px 20px;
}
.stage__tag { display: block; font-size: .72rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--on-dark-muted); margin-bottom: 10px; }
.stage h3 { font-size: 1.35rem; margin-bottom: 10px; }
.stage p { font-size: .93rem; color: var(--on-dark-muted); }
.stage ul { list-style: none; padding: 14px 0 0; margin: 16px 0 0; border-top: 1px solid var(--dark-line); font-size: .87rem; }
.stage li { position: relative; padding-left: 18px; color: #d8d7d2; }
.stage li + li { margin-top: 6px; }
.stage li::before { content: ""; position: absolute; left: 0; top: .62em; width: 8px; height: 2px; background: #6b6b70; }
.stage--1 h3 { color: #c9c8c3; }
.stage--4 .stage__card {
  background: linear-gradient(180deg, rgba(255, 95, 46, .16), rgba(255, 95, 46, .05));
  border-color: rgba(255, 95, 46, .55);
  box-shadow: 0 20px 50px -20px rgba(255, 95, 46, .45);
}
.stage--4 .stage__tag { color: var(--accent); }
.stage--4 li::before { background: var(--accent); }
.stage--4 li { color: var(--on-dark); }

.evo__cta {
  margin-top: 64px; padding-top: 40px; border-top: 1px solid var(--dark-line);
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.evo__cta p { font: 600 1.3rem var(--font-head); letter-spacing: -0.01em; max-width: 30em; }

/* ---------- Áreas ---------- */
.areas { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.area {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px; display: grid; grid-template-columns: 52px 1fr; grid-template-rows: auto 1fr; column-gap: 20px; align-items: start;
}
.area__icon {
  grid-row: span 2; width: 52px; height: 52px; border-radius: 12px;
  background: var(--tint); display: grid; place-items: center;
}
.area__icon svg { width: 26px; height: 26px; fill: none; stroke: var(--ink); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.area h3 { margin: 4px 0 8px; }
.area p { color: var(--muted); font-size: .97rem; }

/* ---------- Nosotros ---------- */
.about { display: grid; grid-template-columns: 1.4fr .9fr; gap: 64px; align-items: start; }
.about__copy h2 { margin-bottom: 24px; }
.about__copy > p { color: var(--ink-2); margin-bottom: 16px; }
.principles { list-style: none; padding: 0; margin: 32px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 18px 28px; }
.principles li { font-size: .95rem; color: var(--muted); padding-left: 16px; border-left: 2px solid var(--ink); }
.principles strong { display: block; color: var(--ink); font-weight: 600; margin-bottom: 2px; }
.about--solo { grid-template-columns: minmax(0, 860px); }
.founder {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 28px; box-shadow: var(--shadow);
}
.founder__photo {
  aspect-ratio: 4 / 3.4; border-radius: 12px; margin-bottom: 20px;
  background: repeating-linear-gradient(135deg, var(--tint) 0 10px, #e7e4de 10px 20px);
  display: grid; place-items: center; color: var(--muted); font-size: .9rem;
}
.founder__name { font: 700 1.2rem var(--font-head); }
.founder__role { color: var(--muted); font-size: .9rem; margin: 2px 0 14px; }
.founder__bio { font-size: .95rem; color: var(--ink-2); margin-bottom: 16px; }
.founder__link { font-weight: 600; font-size: .92rem; color: var(--accent-ink); text-decoration: none; }

/* ---------- Resultados ---------- */
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); margin-bottom: 40px; }
.metric { padding: 30px 24px 30px 0; }
.metric + .metric { padding-left: 24px; border-left: 1px solid var(--line); }
.metric strong { display: block; font: 800 clamp(2rem, 3.2vw, 2.4rem)/1.05 var(--font-head); letter-spacing: -0.03em; color: var(--accent-ink); margin-bottom: 10px; }
.metric span { font-size: .93rem; color: var(--muted); display: block; }

.proof { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.case { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; }
.case__tag { font-size: .75rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.case h3 { margin-bottom: 18px; }
.case dl { margin: 0; }
.case dt { font-weight: 600; font-size: .9rem; margin-top: 14px; }
.case dd { margin: 4px 0 0; color: var(--muted); font-size: .95rem; }
.quotes { display: grid; gap: 18px; }
.quote { margin: 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 30px; }
.quote blockquote { margin: 0 0 16px; font: 500 1.08rem/1.5 var(--font-head); letter-spacing: -0.005em; }
.quote figcaption { font-size: .88rem; color: var(--muted); }
.quote figcaption strong { color: var(--ink); }

/* ---------- CTA final (hito) ---------- */
.final {
  background: var(--dark);
  color: var(--on-dark);
  padding: 120px 0;
  position: relative; overflow: hidden;
  text-align: center;
}
.final::before {
  content: ""; position: absolute; left: 50%; top: 100%; width: 1100px; height: 700px; transform: translate(-50%, -45%);
  background: radial-gradient(closest-side, rgba(255, 95, 46, .28), transparent);
  pointer-events: none;
}
.final__inner { position: relative; max-width: 820px; }
.final .hl { color: var(--accent); }
.final h2 { font-size: clamp(2rem, 4.2vw, 3.3rem); font-weight: 800; letter-spacing: -0.03em; }
.final__lead { color: var(--on-dark-muted); font-size: 1.15rem; margin: 22px auto 38px; max-width: 36em; }
.final__alt { margin-top: 26px; font-size: .92rem; color: var(--on-dark-muted); }
.final__alt a { color: var(--on-dark); }

/* ---------- FAQ ---------- */
.faq { max-width: 860px; }
.faq__list { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; padding: 24px 44px 24px 0; position: relative;
  font: 600 1.12rem var(--font-head); letter-spacing: -0.01em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 6px; top: 50%; width: 14px; height: 14px; margin-top: -7px;
  background:
    linear-gradient(var(--ink), var(--ink)) center/14px 2px no-repeat,
    linear-gradient(var(--ink), var(--ink)) center/2px 14px no-repeat;
  transition: transform .2s ease;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 44px 26px 0; color: var(--ink-2); }

/* ---------- Footer ---------- */
.footer { background: var(--dark); color: var(--on-dark-muted); padding: 48px 0; border-top: 1px solid var(--dark-line); font-size: .9rem; }
.footer__inner { display: grid; gap: 10px; }
.brand--light { color: var(--on-dark); }
.brand--light .brand__mark { background: linear-gradient(135deg, var(--on-dark) 0 50%, var(--accent) 50% 100%); }
.footer a { color: var(--on-dark); }

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .nav__links { display: none; }
  .nav__inner { justify-content: space-between; }
  .hero { padding: 56px 0 80px; }
  .hero__grid { grid-template-columns: 1fr; gap: 56px; }
  .hero__visual { max-width: 520px; margin-left: 26px; }
  .pains { grid-template-columns: 1fr 1fr; }
  .about { grid-template-columns: 1fr; gap: 40px; }
  .founder { max-width: 420px; }
  .metrics { grid-template-columns: 1fr 1fr; }
  .metric:nth-child(3) { padding-left: 0; border-left: 0; }
  .metric:nth-child(n+3) { border-top: 1px solid var(--line); }
  .proof { grid-template-columns: 1fr; }

  /* La curva pasa a línea de tiempo vertical */
  .curve__line { display: none; }
  .stages { grid-template-columns: 1fr; gap: 16px; padding-left: 34px; }
  .stages::before {
    content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 3px; border-radius: 3px;
    background: linear-gradient(180deg, #5b5b57, #b0644a 60%, var(--accent));
  }
  .stage, .stage--1, .stage--2, .stage--3, .stage--4 { margin-top: 0; padding: 0; }
  .stage__dot { position: absolute; left: -34px; top: 22px; margin: 0; }
  .stage--4 .stage__dot { left: -37px; top: 19px; margin: 0; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .container { width: calc(100% - 32px); }
  .nav .btn--sm { padding: 9px 13px; font-size: .82rem; }
  .nav__inner { height: 84px; }
  .hero__ctas .btn { width: 100%; }
  .hero__visual { margin-left: 0; }
  .dash { padding: 16px; transform: none; }
  .dash__kpis strong { font-size: .92rem; }
  .dash__badge { position: static; margin-top: 14px; max-width: none; }
  .section { padding: 76px 0; }
  .evo { padding: 80px 0; }
  .pains, .areas, .principles { grid-template-columns: 1fr; }
  .area { padding: 24px; grid-template-columns: 44px 1fr; column-gap: 16px; }
  .area__icon { width: 44px; height: 44px; }
  .metrics { grid-template-columns: 1fr; }
  .metric, .metric + .metric { padding: 24px 0; border-left: 0; }
  .metric + .metric { border-top: 1px solid var(--line); }
  .evo__cta .btn, .final .btn { width: 100%; white-space: normal; }
  .final { padding: 88px 0; }
  .faq summary { font-size: 1.02rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .btn span, .faq summary::after { transition: none; }
}

/* ---------- Etapas del método en mobile: bloque fijo, una etapa por pantalla ---------- */
.prog { display: none; }
.mhead { display: none; }
.burst { display: none; }

@media (max-width: 1000px) {
  :root { --nav-h: 112px; --prog-h: 260px; }
  html { scroll-padding-top: var(--nav-h); }
  html.snap-mand { scroll-snap-type: y mandatory; }
  .evo { overflow: clip; padding: 0; scroll-snap-align: start; }
  .evo .section__head { display: none; }
  .mhead { display: block; padding: 12px 0 2px; }
  .mhead .eyebrow { margin: 0 0 6px; font-size: .9rem; letter-spacing: .14em; }
  .mhead h2 { font-size: 1.85rem; line-height: 1.08; letter-spacing: -0.03em; }
  #servicios { scroll-snap-align: start; }
  .evo::before { opacity: calc(.3 + var(--heat, 0) * .9); transition: opacity .4s ease; width: 140%; inset: auto -20% -10% -20%; height: 70%; }
  .evo__cta { display: none; }

  /* La pista de scroll: el bloque se queda fijo mientras la recorrés */
  .curve { position: relative; margin-top: 0; height: calc(280svh - var(--nav-h)); }
  .pin { position: sticky; top: var(--nav-h); height: calc(100svh - var(--nav-h)); display: flex; flex-direction: column; }
  .snap-mark { position: absolute; left: 0; width: 1px; height: 1px; scroll-snap-align: start; scroll-snap-stop: always; pointer-events: none; }

  .prog {
    display: block; flex: none; position: relative; z-index: 5;
    margin: 0; padding: 4px 0;
  }
  .prog__svg { display: block; width: 100%; height: auto; max-height: 100px; overflow: visible; }
  .prog__grid path { stroke: #26262a; stroke-width: 1; stroke-dasharray: 3 5; fill: none; }
  .prog__ticks path { stroke: #2e2e33; stroke-width: 1; stroke-dasharray: 2 4; }
  .prog__bars rect { transform-box: fill-box; transform-origin: bottom; transform: scaleY(0); transition: transform .55s cubic-bezier(.2, .9, .3, 1.2); }
  .prog__bars rect.on { transform: scaleY(1); }
  .prog__area { fill: url(#progArea); }
  .prog__base { fill: none; stroke: #2e2e33; stroke-width: 4; stroke-linecap: round; }
  .prog__fill { fill: none; stroke: url(#progStroke); stroke-width: 4; stroke-linecap: round; stroke-dashoffset: 0; }
  .prog__nodes circle { fill: var(--dark); stroke: #4a4a50; stroke-width: 2.5; transition: stroke .3s ease, fill .3s ease; }
  .prog__nodes circle.is-on { stroke: #ff5f2e; fill: #2a1a14; }
  .prog__nodes text { font: 700 9px var(--font-head); fill: #7d7c77; text-anchor: middle; transition: fill .3s ease; }
  .prog__nodes text.is-on { fill: #ff8a63; }
  .prog__dot { fill: var(--accent); filter: drop-shadow(0 0 6px rgba(255, 95, 46, .9)); }
  .prog__halo { fill: rgba(255, 95, 46, .3); transform-box: fill-box; transform-origin: center; animation: halo 1.6s ease-out infinite; }
  .prog__label { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-top: 4px; font-size: .8rem; color: var(--on-dark-muted); }
  .prog__label b { color: var(--accent); }
  .prog__label strong { font: 700 1rem var(--font-head); color: var(--on-dark); letter-spacing: -0.01em; }
  .prog__emo { display: flex; align-items: center; justify-content: center; text-align: center; margin: 4px 0 2px; min-height: 52px; }
  .prog__txt { text-align: center; font: 800 1.3rem/1.15 var(--font-head); letter-spacing: -0.02em; color: var(--on-dark); text-wrap: balance; }
  .prog__emo.pop .prog__txt { animation: slidein .45s ease; }

  /* Las 4 tarjetas se apilan en el mismo lugar y cambian según el avance */
  .stages {
    position: relative; z-index: 2; flex: 1 1 0; min-height: 0;
    display: grid; padding-left: 0; gap: 0; overflow: hidden; counter-reset: st;
  }
  .stages::before, .stage__dot { display: none; }
  .stage, .stage--1, .stage--2, .stage--3, .stage--4 { grid-area: 1 / 1; margin: 0; padding: 0; min-height: 0; position: relative; }
  .stage__card {
    position: relative; width: 100%; height: calc(100% - 8px); overflow: hidden;
    display: flex; flex-direction: column; justify-content: center;
    padding: 18px 20px; border-radius: 22px;
    opacity: var(--o, 1); transform: translateY(var(--y, 0px)) scale(var(--s, 1));
    transition: border-color .4s ease, box-shadow .4s ease;
    will-change: transform, opacity;
  }
  .stage__card::before {
    position: absolute; right: 10px; top: -8px;
    font: 800 6.5rem/1 var(--font-head); letter-spacing: -0.06em;
    color: transparent; -webkit-text-stroke: 1.5px #3a3a40; pointer-events: none;
    transition: -webkit-text-stroke-color .4s ease, color .4s ease;
  }
  .stage--1 .stage__card::before { content: "1"; animation: shake 1.1s steps(2, end) infinite; }
  .stage--2 .stage__card::before { content: "2"; animation: wobble 3s ease-in-out infinite; }
  .stage--3 .stage__card::before { content: "3"; }
  .stage--4 .stage__card::before { content: "4"; color: rgba(255, 95, 46, .3); -webkit-text-stroke: 0; font-size: 8rem; animation: pulse 2.2s ease-in-out infinite; }
  .stage__card > * { position: relative; }
  .stage__tag { font-size: .74rem; }
  .stage h3 { font-size: 1.8rem; margin: 8px 0 8px; letter-spacing: -0.03em; }
  .stage p { font-size: 1rem; line-height: 1.45; }
  .stage ul { font-size: .95rem; margin-top: 14px; padding-top: 12px; }
  .stage li + li { margin-top: 6px; }

  .stage--2 .stage__card { background: linear-gradient(180deg, rgba(255, 95, 46, .07), var(--dark-2)); border-color: #3b302b; }
  .stage--3 .stage__card { background: linear-gradient(180deg, rgba(255, 95, 46, .14), var(--dark-2)); border-color: #6a3a2a; }
  .stage--2 .stage__card::before { -webkit-text-stroke-color: #5a4036; }
  .stage--3 .stage__card::before { -webkit-text-stroke-color: #9a4d33; }
  .stage--3 li::before { background: #c4664a; }
  .stage--4 .stage__card { background: linear-gradient(180deg, rgba(255, 95, 46, .32), rgba(255, 95, 46, .08)); border-color: var(--accent); }
  .stage--4 h3 { font-size: 2rem; }
  .stage--4 p { color: var(--on-dark); }

  .stage.is-active .stage__card { border-color: var(--accent); box-shadow: 0 24px 60px -20px rgba(255, 95, 46, .6); }
  .stage.is-active .stage__card::before { -webkit-text-stroke-color: var(--accent); }
  .evo.is-final .stage--4 .stage__card { animation: glow 2.4s ease-in-out infinite; }

  .js .stage li { opacity: 0; transform: translateX(-14px); transition: opacity .45s ease, transform .45s ease; }
  .js .stage.is-active li { opacity: 1; transform: none; transition-delay: .15s; }
  .js .stage.is-active li + li { transition-delay: .3s; }

  .burst { display: block; position: fixed; left: 0; top: 0; width: 100%; height: 0; pointer-events: none; z-index: 20; }
  .burst i {
    position: absolute; left: var(--x); top: var(--y0); width: 7px; height: 7px; border-radius: 50%;
    background: var(--accent); opacity: 0; animation: spark 1.1s ease-out forwards; animation-delay: var(--d);
  }
}

@media (max-width: 1000px) and (max-height: 679px) { .stage ul { display: none; } }

@keyframes popin { 0% { transform: scale(.3) rotate(-20deg); opacity: 0; } 100% { transform: none; opacity: 1; } }
@keyframes slidein { 0% { transform: translateY(10px); opacity: 0; } 100% { transform: none; opacity: 1; } }
@keyframes halo { 0% { transform: scale(.5); opacity: .9; } 100% { transform: scale(1.6); opacity: 0; } }
@keyframes glow {
  0%, 100% { box-shadow: 0 24px 60px -20px rgba(255, 95, 46, .5); }
  50% { box-shadow: 0 24px 80px -8px rgba(255, 95, 46, .9); }
}
@keyframes shake { 0% { transform: translate(0, 0) rotate(0); } 50% { transform: translate(2px, -2px) rotate(1.2deg); } 100% { transform: translate(-2px, 1px) rotate(-1deg); } }
@keyframes wobble { 0%, 100% { transform: rotate(-1.2deg); } 50% { transform: rotate(1.2deg); } }
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.06); } }
@keyframes spark {
  0% { opacity: 1; transform: translate(0, 0) scale(1); }
  100% { opacity: 0; transform: translate(var(--dx), var(--dy)) scale(.3); }
}

@media (max-width: 640px) { :root { --nav-h: 84px; } }

@media (prefers-reduced-motion: reduce) {
  html.snap-mand { scroll-snap-type: none; }
  .prog__halo, .evo.is-final .stage--4 .stage__card, .stage__card::before { animation: none !important; }
  .js .stage li { opacity: 1; transform: none; transition: none; }
  .prog__bars rect { transition: none; }
}