/* =========================================================
   GSI Quants — hoja de estilos única
   Dirección visual: carta náutica. Papel de carta, tinta de
   sonda, isolíneas y notación magenta (el color que las cartas
   reservan para lo que hay que mirar). Cada división tiene su
   color codificado: magenta = Tecnología, ámbar = Comercio.
   ========================================================= */

/* ---------- 1. Tokens ---------- */
:root {
  /* Color */
  --paper:      #E4E2D6;   /* papel de carta náutica */
  --paper-hi:   #EFEEE6;   /* panel claro */
  --shoal:      #C6D8DA;   /* sonda somera */
  --ink:        #0E1F29;   /* tinta profunda */
  --ink-2:      #1C3745;
  --depth:      #8CA6AC;   /* líneas de sonda, texto secundario */
  --magenta:    #CE0F69;   /* notación — división Tecnología */
  --amber:      #D98A0B;   /* baliza — división Comercio */

  /* Tipografía */
  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --body:    "Source Serif 4", Georgia, "Times New Roman", serif;
  --mono:    "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Escala */
  --t-hero: clamp(2.5rem, 6.4vw, 5.25rem);
  --t-h2:   clamp(1.75rem, 3.6vw, 2.75rem);
  --t-h3:   clamp(1.15rem, 1.6vw, 1.4rem);
  --t-body: 1.0625rem;
  --t-mono: 0.72rem;

  /* Ritmo */
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --max:    1220px;
  --band:   clamp(4rem, 9vw, 7.5rem);
}

/* ---------- 2. Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: var(--t-body);
  line-height: 1.65;
  font-synthesis-weight: none;
}

img, svg { max-width: 100%; display: block; }

/* Los atributos width/height del HTML se convierten en pistas de presentación.
   Si no se neutraliza la altura, la caja queda con ancho y alto definidos y el
   navegador ignora aspect-ratio: la imagen se estira y object-fit la recorta. */
img { height: auto; }

a { color: inherit; }

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 650;
  letter-spacing: -0.022em;
  line-height: 1.06;
  margin: 0;
  text-wrap: balance;
}

p { margin: 0 0 1.1em; max-width: 62ch; }
p:last-child { margin-bottom: 0; }

:focus-visible {
  outline: 3px solid var(--magenta);
  outline-offset: 3px;
}

.skip {
  position: absolute; left: -9999px;
  background: var(--ink); color: var(--paper);
  padding: 0.7rem 1rem; z-index: 100;
  font-family: var(--mono); font-size: var(--t-mono);
}
.skip:focus { left: 1rem; top: 1rem; }

/* ---------- 3. Utilidades ---------- */
.wrap {
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.eyebrow {
  font-family: var(--mono);
  font-size: var(--t-mono);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--depth);
  margin: 0 0 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
.eyebrow::after {
  content: "";
  flex: 1;
  height: 1px;
  background: currentColor;
  opacity: 0.45;
}

.lede {
  font-size: clamp(1.1rem, 1.55vw, 1.3rem);
  line-height: 1.55;
  max-width: 54ch;
}

.muted { color: var(--ink-2); }

/* Marcador de contenido pendiente. Imposible de pasar por alto.
   Busca "todo" en el HTML y borra estos <span> antes de publicar. */
.todo {
  background: var(--magenta);
  color: #fff;
  font-family: var(--mono);
  font-size: 0.78em;
  letter-spacing: 0.04em;
  padding: 0.1em 0.45em;
  border-radius: 2px;
}

/* ---------- 4. Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.85rem 1.5rem;
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: var(--ink);
  color: var(--paper);
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}
.btn:hover { background: var(--magenta); border-color: var(--magenta); transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }

.btn--light { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.btn--light:hover { background: var(--magenta); border-color: var(--magenta); color: #fff; }

/* ---------- 5. Cabecera ---------- */
.masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid color-mix(in srgb, var(--depth) 55%, transparent);
}

.masthead__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 68px;
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  text-decoration: none;
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: 0.02em;
}
.wordmark span { color: var(--magenta); }

.nav { display: flex; align-items: center; gap: 1.75rem; }

.nav a {
  font-family: var(--mono);
  font-size: var(--t-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  padding-block: 0.35rem;
  border-bottom: 1px solid transparent;
  transition: border-color 0.18s ease, color 0.18s ease;
}
.nav a:hover { border-color: var(--magenta); }
.nav a[aria-current="page"] { border-color: var(--ink); }

/* Menú móvil sin JavaScript */
.menu { display: none; }
.menu > summary {
  list-style: none;
  cursor: pointer;
  font-family: var(--mono);
  font-size: var(--t-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--ink);
  border-radius: 2px;
}
.menu > summary::-webkit-details-marker { display: none; }
.menu[open] > summary { background: var(--ink); color: var(--paper); }
.menu__panel {
  position: absolute;
  left: 0; right: 0;
  background: var(--paper-hi);
  border-bottom: 1px solid var(--depth);
  padding: 0.5rem var(--gutter) 1.25rem;
}
.menu__panel a {
  display: block;
  padding: 0.75rem 0;
  border-bottom: 1px solid color-mix(in srgb, var(--depth) 40%, transparent);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

@media (max-width: 800px) {
  .nav { display: none; }
  .menu { display: block; }
}

/* ---------- 6. Héroe ---------- */
.hero {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
  isolation: isolate;
}

.hero__chart {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  opacity: 0.9;
}

.hero__inner {
  padding-block: clamp(4.5rem, 11vw, 8.5rem) clamp(3rem, 6vw, 5rem);
  position: relative;
}

.hero .eyebrow { color: var(--shoal); }

.hero h1 {
  font-size: var(--t-hero);
  max-width: 15ch;
  margin-bottom: 1.5rem;
}
.hero h1 em {
  font-style: normal;
  color: var(--magenta);
}

.hero__lede {
  color: var(--shoal);
  max-width: 50ch;
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  line-height: 1.6;
}

/* Las dos divisiones, trazadas como estaciones sobre la carta */
.stations {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1px;
  margin-top: clamp(3rem, 6vw, 4.5rem);
  background: color-mix(in srgb, var(--shoal) 30%, transparent);
  border: 1px solid color-mix(in srgb, var(--shoal) 30%, transparent);
  border-radius: 2px;
  overflow: hidden;
}

.station {
  background: var(--ink);
  padding: 1.75rem 1.6rem 1.6rem;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  transition: background 0.2s ease;
}
.station:hover { background: var(--ink-2); }

.station__code {
  font-family: var(--mono);
  font-size: var(--t-mono);
  letter-spacing: 0.18em;
  color: var(--accent, var(--magenta));
  display: flex;
  align-items: center;
  gap: 0.55rem;
}
.station__code::before {
  content: "";
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--accent, var(--magenta));
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent, var(--magenta)) 22%, transparent);
}

.station h2 { font-size: var(--t-h3); font-weight: 600; }
.station p { color: var(--shoal); font-size: 0.95rem; margin: 0; }
.station__go {
  margin-top: auto;
  padding-top: 1rem;
  font-family: var(--mono);
  font-size: var(--t-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent, var(--magenta));
}
.station:hover .station__go::after { transform: translateX(4px); }
.station__go::after {
  content: " \2192";
  display: inline-block;
  transition: transform 0.18s ease;
}

.station--com { --accent: var(--amber); }

/* ---------- 7. Cabecera interior ---------- */
.pagehead {
  background: var(--ink);
  color: var(--paper);
  padding-block: clamp(3.5rem, 8vw, 6rem) clamp(2.5rem, 5vw, 4rem);
  border-bottom: 4px solid var(--accent, var(--magenta));
}
.pagehead .eyebrow { color: var(--accent, var(--magenta)); }
.pagehead h1 { font-size: clamp(2.1rem, 5vw, 3.9rem); max-width: 18ch; }
.pagehead .lede { color: var(--shoal); margin-top: 1.4rem; }

.page--com { --accent: var(--amber); }

/* ---------- 8. Bandas de sección ---------- */
.band { padding-block: var(--band); }
.band--tint { background: var(--paper-hi); }
.band--deep { background: var(--ink); color: var(--paper); }
.band--deep .eyebrow { color: var(--shoal); }
.band--deep p { color: var(--shoal); }

.band__head { margin-bottom: clamp(2.25rem, 4vw, 3.25rem); }
.band__head h2 { font-size: var(--t-h2); max-width: 20ch; }
.band__head .lede { margin-top: 1.1rem; }

/* Línea de sonda: separador con puntos, no un filete genérico */
.sounding {
  height: 1px;
  border: 0;
  margin: 0;
  background: repeating-linear-gradient(
    to right,
    var(--depth) 0 3px,
    transparent 3px 11px
  );
  opacity: 0.6;
}

/* ---------- 9. Rejilla de capacidades ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(265px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--paper);
  border: 1px solid color-mix(in srgb, var(--depth) 60%, transparent);
  border-radius: 2px;
  padding: 1.6rem 1.5rem;
  position: relative;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.band--tint .card { background: var(--paper); }
.card:hover { border-color: var(--accent, var(--magenta)); transform: translateY(-3px); }

.card__code {
  font-family: var(--mono);
  font-size: var(--t-mono);
  letter-spacing: 0.16em;
  color: var(--accent, var(--magenta));
  display: block;
  margin-bottom: 0.9rem;
}
.card h3 { font-size: var(--t-h3); margin-bottom: 0.6rem; }
.card p { font-size: 0.95rem; margin: 0; color: var(--ink-2); }

.card ul {
  margin: 0.9rem 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.05em;
  color: var(--depth);
  text-transform: uppercase;
}
.card ul li { padding: 0.28rem 0; border-top: 1px solid color-mix(in srgb, var(--depth) 35%, transparent); }

/* ---------- 10. Secuencia numerada (solo donde el orden importa) ---------- */
.route { counter-reset: leg; display: grid; gap: 0; }

.leg {
  counter-increment: leg;
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 1.5rem;
  padding: 1.6rem 0;
  border-top: 1px solid color-mix(in srgb, var(--depth) 55%, transparent);
  align-items: start;
}
.leg:last-child { border-bottom: 1px solid color-mix(in srgb, var(--depth) 55%, transparent); }

.leg::before {
  content: counter(leg, decimal-leading-zero);
  font-family: var(--display);
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
  font-weight: 650;
  line-height: 0.9;
  color: var(--accent, var(--amber));
}
.leg h3 { font-size: var(--t-h3); margin-bottom: 0.45rem; }
.leg p { font-size: 0.95rem; margin: 0; color: var(--ink-2); }

@media (max-width: 560px) {
  .leg { grid-template-columns: 3.5rem 1fr; gap: 1rem; }
}

/* ---------- 11. Lista de datos (clave / valor) ---------- */
.spec { display: grid; gap: 0; margin: 0; }
.spec div {
  display: grid;
  grid-template-columns: minmax(9rem, 15rem) 1fr;
  gap: 1.5rem;
  padding: 0.95rem 0;
  border-top: 1px solid color-mix(in srgb, var(--depth) 55%, transparent);
}
.spec div:last-child { border-bottom: 1px solid color-mix(in srgb, var(--depth) 55%, transparent); }
.spec dt {
  font-family: var(--mono);
  font-size: var(--t-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--depth);
  padding-top: 0.25rem;
}
.spec dd { margin: 0; font-size: 0.98rem; }

@media (max-width: 620px) {
  .spec div { grid-template-columns: 1fr; gap: 0.3rem; }
}

/* ---------- 12. Bloque de dos columnas ---------- */
.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

.portrait {
  border: 1px solid var(--depth);
  border-radius: 2px;
  aspect-ratio: 4 / 5;
  width: 100%;
  max-width: 380px;          /* que no eclipse a la columna de texto */
  margin-inline-start: auto; /* alineado al margen derecho de la página */
  object-fit: cover;
  background: var(--shoal);
}

/* Marco de imagen pendiente de sustituir */
.placeholder {
  border: 1px dashed var(--magenta);
  border-radius: 2px;
  background: color-mix(in srgb, var(--shoal) 45%, var(--paper));
  display: grid;
  place-content: center;
  text-align: center;
  padding: 2rem 1.5rem;
  font-family: var(--mono);
  font-size: var(--t-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--magenta);
  min-height: 220px;
}

/* ---------- 13. Tira de tecnologías ---------- */
.stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.stack li {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.42rem 0.75rem;
  border: 1px solid color-mix(in srgb, var(--shoal) 45%, transparent);
  border-radius: 2px;
  color: var(--shoal);
}

/* ---------- 14. Formulario ---------- */
.form { display: grid; gap: 1.1rem; max-width: 34rem; }

.field { display: grid; gap: 0.4rem; }
.field label {
  font-family: var(--mono);
  font-size: var(--t-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.field input,
.field select,
.field textarea {
  font: inherit;
  font-size: 1rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--depth);
  border-radius: 2px;
  background: var(--paper-hi);
  color: var(--ink);
}
.field textarea { min-height: 8.5rem; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--magenta); }

/* Trampa antispam: fuera de la vista sin usar display:none ni hidden, que
   algunos robots reconocen y saltan. Para lectores de pantalla queda anulada
   por aria-hidden, y para el teclado por tabindex="-1". */
.trampa {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.consent {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  font-size: 0.86rem;
  color: var(--ink-2);
  max-width: 34rem;
}
.consent input { margin-top: 0.35rem; }

.turnstile-wrap {
  min-height: 65px;
  display: flex;
  align-items: center;
}

/* ---------- 15. Pie ---------- */
.foot {
  background: var(--ink);
  color: var(--shoal);
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
}
.foot a { color: var(--paper); text-decoration: none; border-bottom: 1px solid color-mix(in srgb, var(--shoal) 45%, transparent); }
.foot a:hover { border-color: var(--magenta); color: #fff; }

.foot__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 2.25rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid color-mix(in srgb, var(--shoal) 25%, transparent);
}
.foot h2 {
  font-family: var(--mono);
  font-size: var(--t-mono);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--depth);
  margin-bottom: 1rem;
}
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.55rem; font-size: 0.92rem; }
.foot address { font-style: normal; font-size: 0.92rem; line-height: 1.6; }

.foot__base {
  padding-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--mono);
  font-size: var(--t-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--depth);
}

/* ---------- 16. Movimiento ---------- */
/* La carta se dibuja al cargar: las isolíneas trazan como una sonda. */
.hero__chart path {
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  animation: sound 2.4s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.hero__chart path:nth-child(2) { animation-delay: 0.12s; }
.hero__chart path:nth-child(3) { animation-delay: 0.24s; }
.hero__chart path:nth-child(4) { animation-delay: 0.36s; }
.hero__chart path:nth-child(5) { animation-delay: 0.48s; }
.hero__chart path:nth-child(6) { animation-delay: 0.60s; }
.hero__chart path:nth-child(7) { animation-delay: 0.72s; }

@keyframes sound { to { stroke-dashoffset: 0; } }

.hero__inner > * {
  animation: rise 0.7s cubic-bezier(0.22, 1, 0.36, 1) backwards;
}
.hero__inner > *:nth-child(2) { animation-delay: 0.08s; }
.hero__inner > *:nth-child(3) { animation-delay: 0.16s; }
.hero__inner > *:nth-child(4) { animation-delay: 0.26s; }

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
}

/* Revelado al hacer scroll, solo donde el navegador lo soporta.
   Sin soporte, el contenido simplemente está visible. */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .band__head, .card, .leg, .split > * {
      animation: rise 0.6s ease both;
      animation-timeline: view();
      animation-range: entry 5% cover 22%;
    }
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .hero__chart path { stroke-dashoffset: 0; }
}

/* ---------- 17. Impresión ---------- */
@media print {
  .masthead, .hero__chart, .btn { display: none; }
  body { background: #fff; color: #000; }
}