/* sineki.io — hoja única.
   Tinta oscura con dos señales de color (cobalto y ascua), secciones de papel frío para respirar,
   Outfit para lo grande, Inter para leer. Un «espinazo» (línea vertical) recorre la página:
   es la metáfora de la casa — una sola señal atraviesa toda la empresa. */

@font-face { font-family: 'Outfit'; font-weight: 400; font-display: swap; src: url('../fonts/outfit-400.woff2') format('woff2'); }
@font-face { font-family: 'Outfit'; font-weight: 600; font-display: swap; src: url('../fonts/outfit-600.woff2') format('woff2'); }
@font-face { font-family: 'Outfit'; font-weight: 800; font-display: swap; src: url('../fonts/outfit-800.woff2') format('woff2'); }
@font-face { font-family: 'Inter';  font-weight: 400; font-display: swap; src: url('../fonts/inter-400.woff2')  format('woff2'); }
@font-face { font-family: 'Inter';  font-weight: 600; font-display: swap; src: url('../fonts/inter-600.woff2')  format('woff2'); }
@font-face { font-family: 'Inter';  font-weight: 700; font-display: swap; src: url('../fonts/inter-700.woff2')  format('woff2'); }

:root {
  --tinta: #0a0c12;
  --carbon: #141821;
  --carbon-2: #1c2130;
  --papel: #edf0f4;
  --papel-2: #dfe4ea;
  --cobalto: #2e5bff;
  --cobalto-claro: #8ea4ff;
  --ascua: #ff5a2e;
  --bruma: #98a2b3;
  --bruma-2: #5c6678;
  --blanco: #f7f8fb;
  --display: 'Outfit', 'Inter', system-ui, sans-serif;
  --texto: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --ancho: 1240px;
  --gutter: clamp(20px, 5vw, 72px);
  --espina: 44px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--tinta); color: var(--blanco);
  font-family: var(--texto); font-size: 17px; line-height: 1.55;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
a { color: inherit; }
img, video { display: block; max-width: 100%; }
:focus-visible { outline: 2px solid var(--ascua); outline-offset: 3px; }
::selection { background: var(--cobalto); color: #fff; }

h1, h2, h3, .display { font-family: var(--display); font-weight: 800; letter-spacing: -0.028em; line-height: 0.98; margin: 0; }
h2 { font-size: clamp(36px, 5.2vw, 72px); }
h3 { font-size: clamp(22px, 2.3vw, 30px); letter-spacing: -0.02em; line-height: 1.1; }
p { margin: 0 0 1em; }
.lead { font-size: clamp(18px, 1.5vw, 22px); line-height: 1.5; color: var(--bruma); max-width: 56ch; }
.oscuro .lead { color: #c3cad6; }
.mono { font-family: var(--mono); font-size: 13px; letter-spacing: 0.02em; }

.cont { width: min(var(--ancho), 100% - 2 * var(--gutter)); margin-inline: auto; }

/* ── Cabecera ─────────────────────────────────────────────────────────────── */
.cab {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px var(--gutter);
  background: linear-gradient(to bottom, rgba(10,12,18,.9), rgba(10,12,18,0));
  transition: background .3s;
}
.cab.solida { background: rgba(10,12,18,.92); backdrop-filter: blur(10px); }
.marca { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-family: var(--display); font-weight: 800; font-size: 22px; letter-spacing: -0.02em; }
.marca svg { width: 28px; height: 28px; }
.nav { display: flex; gap: 28px; align-items: center; }
.nav a { text-decoration: none; font-size: 15px; color: #c9d0dc; }
.nav a:hover { color: #fff; }
.nav .btn { padding: 10px 18px; }
.cab-menu { display: none; background: none; border: 0; color: #fff; font: inherit; }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px; border-radius: 999px; text-decoration: none;
  font-family: var(--display); font-weight: 600; font-size: 16px; letter-spacing: 0;
  border: 1px solid transparent; cursor: pointer; transition: transform .15s, background .2s, border-color .2s;
}
.btn:active { transform: translateY(1px); }
.btn-ascua { background: var(--ascua); color: #1a0a05; }
.btn-ascua:hover { background: #ff7047; }
.btn-linea { border-color: rgba(255,255,255,.28); color: #fff; }
.btn-linea:hover { border-color: #fff; }
.papel .btn-linea { border-color: rgba(10,12,18,.35); color: var(--tinta); }
.papel .btn-linea:hover { border-color: var(--tinta); }

/* ── Hero ─────────────────────────────────────────────────────────────────── */
.hero { position: relative; min-height: 100svh; display: grid; align-items: end; overflow: hidden; isolation: isolate; }
.hero-video { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity 1.2s ease; }
.hero-video.lista { opacity: 1; }
.hero-poster { position: absolute; inset: 0; z-index: -2; background:
  radial-gradient(900px 600px at 72% 30%, rgba(46,91,255,.22), transparent 70%),
  radial-gradient(700px 500px at 12% 95%, rgba(255,90,46,.12), transparent 70%),
  var(--tinta); }
.hero-puntos { position: absolute; inset: 0; z-index: -2; background-image: radial-gradient(rgba(140,160,255,.16) 1px, transparent 1.3px); background-size: 26px 26px; mask-image: linear-gradient(to left, rgba(0,0,0,.9), transparent 70%); }
.hero-cuerpo { padding: 140px 0 72px; }
.hero h1 { font-size: clamp(46px, 8.6vw, 128px); max-width: 11ch; }
.hero h1 .ascua { color: var(--ascua); }
.hero h1 .fria { color: var(--cobalto-claro); }
.hero .lead { margin-top: 28px; max-width: 52ch; color: #c9d0dc; }
.hero-acciones { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero-pie { display: flex; flex-wrap: wrap; gap: 8px 28px; margin-top: 52px; color: var(--bruma); font-size: 14px; }
.hero-pie b { color: #e3e8f0; font-weight: 600; }

/* Entrada del hero: una sola coreografía, al cargar. */
.hero .entra { opacity: 0; transform: translateY(22px); animation: entra .9s cubic-bezier(.2,.7,.2,1) forwards; }
.hero .entra:nth-child(2) { animation-delay: .15s; }
.hero .entra:nth-child(3) { animation-delay: .3s; }
.hero .entra:nth-child(4) { animation-delay: .45s; }
@keyframes entra { to { opacity: 1; transform: none; } }

/* ── Espinazo ─────────────────────────────────────────────────────────────── */
.espina { position: fixed; left: calc(var(--gutter) / 2 - 1px); top: 0; bottom: 0; width: 2px; z-index: 40; pointer-events: none; background: rgba(255,255,255,.07); }
.espina i { position: absolute; left: 0; top: 0; width: 100%; height: 0; background: linear-gradient(to bottom, var(--cobalto), var(--ascua)); box-shadow: 0 0 18px rgba(46,91,255,.6); transition: height .12s linear; }
.papel .espina-nodo { background: var(--tinta); }

/* ── Secciones ────────────────────────────────────────────────────────────── */
section { position: relative; padding: clamp(80px, 10vw, 150px) 0; }
.papel { background: var(--papel); color: var(--tinta); }
.papel ::selection { background: var(--ascua); color: #fff; }
.papel .bruma { color: var(--bruma-2); }
.sec-cab { display: grid; grid-template-columns: 1fr; gap: 20px 48px; margin-bottom: clamp(36px, 5vw, 72px); }
@media (min-width: 900px) { .sec-cab { grid-template-columns: 1.1fr .9fr; align-items: end; } }
.sec-cab .lead { margin: 0; }

/* Qué construimos: filas editoriales con regla entre ellas, no tarjetas. */
.filas { border-top: 1px solid rgba(10,12,18,.14); }
.fila { display: grid; grid-template-columns: 1fr; gap: 18px 48px; padding: 36px 0; border-bottom: 1px solid rgba(10,12,18,.14); }
@media (min-width: 900px) { .fila { grid-template-columns: 120px 1.1fr 1fr; align-items: start; padding: 44px 0; } }
.fila .glifo { width: 76px; height: 76px; }
.fila .glifo svg { width: 100%; height: 100%; }
.fila h3 { margin-bottom: 10px; }
.fila p { margin: 0; color: #3a4252; max-width: 52ch; }
.fila ul { margin: 0; padding: 0; list-style: none; color: #3a4252; }
.fila li { padding: 8px 0; border-top: 1px dashed rgba(10,12,18,.16); }
.fila li:first-child { border-top: 0; padding-top: 0; }
.fila li b { color: var(--tinta); font-weight: 600; }

/* Máquina de crecimiento: fondo tinta, captura grande y tres hechos. */
.maquina-grid { display: grid; gap: 40px; align-items: center; }
@media (min-width: 960px) { .maquina-grid { grid-template-columns: 1.15fr .85fr; } }
.captura { position: relative; border-radius: 18px; overflow: hidden; border: 1px solid rgba(255,255,255,.1); box-shadow: 0 40px 120px rgba(0,0,0,.6); }
.captura img { width: 100%; }
.captura .sello { position: absolute; left: 16px; bottom: 16px; padding: 6px 12px; border-radius: 999px; background: rgba(10,12,18,.8); color: #d8deea; font-size: 13px; backdrop-filter: blur(6px); }
.hechos { display: grid; gap: 22px; }
.hecho { padding: 22px 0 0; border-top: 1px solid rgba(255,255,255,.14); }
.hecho h3 { color: #fff; margin-bottom: 6px; }
.hecho p { margin: 0; color: #aeb7c7; max-width: 44ch; }
.hecho .num { font-family: var(--display); font-weight: 800; font-size: 44px; letter-spacing: -0.03em; color: var(--cobalto-claro); line-height: 1; margin-bottom: 8px; }

/* Equipo de agentes: fila de credenciales. */
.equipo { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
@media (min-width: 720px) { .equipo { grid-template-columns: repeat(5, 1fr); } }
.cred { position: relative; border-radius: 14px; overflow: hidden; background: var(--carbon); border: 1px solid rgba(255,255,255,.08); }
.cred img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; filter: saturate(.9); }
.cred .datos { padding: 14px 14px 16px; }
.cred .nombre { font-family: var(--display); font-weight: 600; font-size: 17px; }
.cred .rol { color: var(--bruma); font-size: 13px; margin-top: 2px; }
.cred .ia { position: absolute; top: 10px; left: 10px; padding: 4px 9px; border-radius: 999px; background: rgba(10,12,18,.75); color: #cfd6e4; font-size: 12px; font-family: var(--mono); }
.equipo-nota { margin-top: 26px; color: var(--bruma); max-width: 70ch; }

/* Cómo trabajamos: SÍ es una secuencia, así que va numerada. */
.pasos { display: grid; gap: 0; border-top: 1px solid rgba(10,12,18,.14); }
@media (min-width: 900px) { .pasos { grid-template-columns: repeat(4, 1fr); border-top: 0; } }
.paso { padding: 28px 0; border-bottom: 1px solid rgba(10,12,18,.14); }
@media (min-width: 900px) { .paso { padding: 0 28px 0 0; border-bottom: 0; border-left: 1px solid rgba(10,12,18,.14); padding-left: 22px; } }
.paso .n { font-family: var(--mono); font-size: 13px; color: var(--cobalto); margin-bottom: 14px; }
.paso h3 { margin-bottom: 10px; }
.paso p { margin: 0; color: #3a4252; }

/* Transición a IA: manifiesto, tipo grande. */
.manifiesto { font-family: var(--display); font-weight: 600; font-size: clamp(24px, 3.1vw, 44px); line-height: 1.18; letter-spacing: -0.02em; max-width: 24ch; }
.manifiesto em { font-style: normal; color: var(--ascua); }
.manifiesto-grid { display: grid; gap: 40px; }
@media (min-width: 960px) { .manifiesto-grid { grid-template-columns: 1.2fr .8fr; align-items: start; } }
.manifiesto-lista { margin: 0; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.14); }
.manifiesto-lista li { padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,.14); display: grid; grid-template-columns: 28px 1fr; gap: 12px; color: #c3cad6; }
.manifiesto-lista li::before { content: ''; width: 10px; height: 10px; margin-top: 7px; border-radius: 50%; background: var(--cobalto); box-shadow: 0 0 12px var(--cobalto); }

/* Sectores: lista de un renglón con la ascua como viñeta. */
.sectores { display: grid; gap: 10px 40px; margin: 0; padding: 0; list-style: none; }
@media (min-width: 720px) { .sectores { grid-template-columns: 1fr 1fr; } }
.sectores li { display: grid; grid-template-columns: auto 1fr; gap: 14px; padding: 16px 0; border-bottom: 1px solid rgba(10,12,18,.14); align-items: baseline; }
.sectores .k { font-family: var(--mono); font-size: 13px; color: var(--ascua); }
.sectores b { font-family: var(--display); font-weight: 600; font-size: 20px; letter-spacing: -0.01em; }
.sectores span { display: block; color: #3a4252; }

/* Contacto */
.contacto-grid { display: grid; gap: 40px; }
@media (min-width: 960px) { .contacto-grid { grid-template-columns: .9fr 1.1fr; } }
.form { display: grid; gap: 14px; }
.form .dos { display: grid; gap: 14px; }
@media (min-width: 600px) { .form .dos { grid-template-columns: 1fr 1fr; } }
.campo { display: grid; gap: 6px; }
.campo label { font-size: 13px; color: var(--bruma); }
.campo input, .campo textarea, .campo select {
  font: inherit; color: #fff; background: var(--carbon); border: 1px solid rgba(255,255,255,.12);
  border-radius: 10px; padding: 13px 14px; width: 100%;
}
.campo input:focus, .campo textarea:focus { border-color: var(--cobalto); outline: none; box-shadow: 0 0 0 3px rgba(46,91,255,.25); }
.campo textarea { min-height: 120px; resize: vertical; }
.form .miel { position: absolute; left: -9999px; }
.form-estado { min-height: 24px; color: var(--bruma); font-size: 15px; }
.form-estado.ok { color: #8ef0c0; }
.form-estado.error { color: #ff8a6b; }
.contacto-lado p { color: #c3cad6; }

/* Pie */
.pie { padding: 40px 0 48px; border-top: 1px solid rgba(255,255,255,.1); color: var(--bruma); font-size: 14px; }
.pie .cont { display: flex; flex-wrap: wrap; gap: 14px 40px; align-items: center; justify-content: space-between; }
.pie a { color: #c9d0dc; text-decoration: none; }
.pie a:hover { color: #fff; }

/* Reveal al hacer scroll: una sola clase, sin librerías. */
.rev { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.rev.visto { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero .entra, .rev { animation: none; opacity: 1; transform: none; transition: none; }
  .hero-video { display: none; }
}

@media (max-width: 760px) {
  .nav { display: none; }
  .nav.abierta { display: grid; position: absolute; top: 64px; right: var(--gutter); left: var(--gutter); gap: 6px; padding: 16px; background: var(--carbon); border: 1px solid rgba(255,255,255,.1); border-radius: 14px; }
  .cab-menu { display: inline-block; }
  .espina { display: none; }
  .hero-cuerpo { padding-top: 120px; }
}