/* ============================================================
   Centeran — Consultoría de Tecnología
   Dark technical canvas · acid-yellow signal (#D9D900)
   ============================================================ */

:root {
  --void:       #0A0A0B;
  --carbon:     #131316;
  --carbon-2:   #16171C;
  --steel:      #23242D;
  --steel-soft: #1B1C22;

  --signal:     #D9D900;
  --signal-dim: #8A8A12;
  --signal-glow: rgba(217, 217, 0, 0.35);

  --mist:       #E8E8EA;
  --mist-dim:   #8A8B94;
  --mist-faint: #5A5B64;

  --maxw: 1180px;
  --gutter: clamp(20px, 5vw, 64px);
  --spine-left: clamp(10px, 3vw, 38px);

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --radius: 14px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--void);
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
strong { color: var(--mist); font-weight: 600; }
em { font-style: normal; color: var(--signal); }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--signal); color: #000; padding: 10px 16px;
  font-weight: 700; z-index: 200;
}
.skip-link:focus { left: 8px; top: 8px; }

/* ambient particle field — apenas visible, constante */
#bg-particles {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

::selection { background: var(--signal); color: #000; }

/* ---------- shared layout ---------- */
.section {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(80px, 12vw, 160px) var(--gutter);
}

.section__head { max-width: 760px; margin-bottom: clamp(40px, 6vw, 72px); }

.kicker {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--signal);
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 24px;
}
.kicker span {
  color: var(--void);
  background: var(--signal);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 700;
}

.section__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.9rem, 4.4vw, 3.1rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
}
.section__intro {
  color: var(--mist-dim);
  font-size: clamp(1rem, 1.6vw, 1.18rem);
  margin-top: 22px;
  max-width: 640px;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 14px 26px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s var(--ease), background .25s var(--ease), box-shadow .25s var(--ease), color .25s var(--ease);
}
.btn--primary {
  background: var(--signal); color: #000; font-weight: 700;
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 34px -8px var(--signal-glow);
}
.btn--ghost {
  background: transparent; color: var(--mist);
  border-color: var(--steel);
}
.btn--ghost:hover { border-color: var(--signal); color: var(--signal); transform: translateY(-2px); }

/* ============================================================
   System spine (signature element)
   ============================================================ */
.spine {
  position: fixed;
  top: 0; bottom: 0;
  left: var(--spine-left);
  width: 20px;
  z-index: 5;
  pointer-events: none;
}
.spine__svg { width: 100%; height: 100%; }
.spine__track { stroke: var(--steel); stroke-width: 1; }
.spine__progress {
  stroke: var(--signal);
  stroke-width: 2;
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  filter: drop-shadow(0 0 6px var(--signal-glow));
  transition: stroke-dashoffset .1s linear;
}
/* partícula que baja por la espina como pista de scroll (hasta el primer scroll) */
/* wrapper: controla el desvanecimiento gradual al hacer scroll */
.spine__pulse {
  position: absolute;
  left: 10px;
  top: 0;
  opacity: 1;
  transition: opacity .7s ease;
  pointer-events: none;
}
.spine.is-ending .spine__pulse { opacity: 0; }

/* la partícula: se mueve y aparece/desaparece por ciclo */
.spine__dot {
  position: absolute;
  left: 0;
  top: 0;
  width: 8px; height: 8px;
  margin-left: -4px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 8px var(--signal-glow), 0 0 16px var(--signal-glow);
  opacity: 0;
  /* transform animado en el compositor (GPU) -> fluido al refresco real del monitor */
  will-change: transform, opacity;
  transform: translate3d(0, -10px, 0);
}
/* estela que sigue a la partícula */
.spine__dot::before {
  content: "";
  position: absolute;
  left: 50%; bottom: 4px;
  transform: translateX(-50%);
  width: 2px; height: 56px;
  background: linear-gradient(to top, rgba(217, 217, 0, 0.55), rgba(217, 217, 0, 0));
  border-radius: 2px;
}
.spine.is-hinting .spine__dot {
  animation: spinePulse 2.6s linear infinite;
}
@keyframes spinePulse {
  0%   { transform: translate3d(0, -10px, 0);   opacity: 0; }
  10%  { opacity: 1; }
  88%  { opacity: 1; }
  100% { transform: translate3d(0, 100vh, 0);   opacity: 0; }
}

@media (max-width: 900px) { .spine { display: none; } }

/* nodes pinned to elements with data-node */
.node {
  position: fixed;
  /* centrado exacto sobre la línea de la espina (centro = spine-left + 10px) */
  left: calc(var(--spine-left) + 10px);
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--void);
  border: 1px solid var(--steel);
  transform: translate(-50%, -50%) scale(1);
  z-index: 6;
  pointer-events: none;
  transition: background .4s var(--ease), border-color .4s var(--ease), box-shadow .4s var(--ease), transform .4s var(--ease);
}
.node.is-active {
  background: var(--node-color, var(--signal));
  border-color: var(--node-color, var(--signal));
  box-shadow:
    0 0 0 4px color-mix(in srgb, var(--node-color, var(--signal)) 16%, transparent),
    0 0 16px color-mix(in srgb, var(--node-color, var(--signal)) 55%, transparent);
  transform: translate(-50%, -50%) scale(1.18);
}
@media (max-width: 900px) { .node { display: none; } }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(10,10,11,0.55);
  border-bottom: 1px solid transparent;
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
.nav.is-stuck {
  background: rgba(10,10,11,0.85);
  border-bottom-color: var(--steel);
}
.nav__inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: 16px var(--gutter);
  display: flex; align-items: center; justify-content: space-between;
}
.nav__logo { height: 30px; width: auto; }
.nav__links { display: flex; align-items: center; gap: 30px; }
.nav__links a {
  font-size: 0.95rem; color: var(--mist-dim);
  transition: color .2s var(--ease);
}
.nav__links a:hover { color: var(--mist); }
/* "Hablemos": fondo amarillo con neón que pulsa sin apagarse, texto blanco */
.nav__cta {
  border: 1px solid var(--signal);
  padding: 9px 18px; border-radius: 7px;
  font-family: var(--font-mono); font-size: 0.85rem;
  background: var(--signal);
  color: #000 !important;
  font-weight: 700;
  box-shadow: 0 0 8px rgba(217, 217, 0, 0.5), 0 0 18px rgba(217, 217, 0, 0.3);
  animation: ctaNeon 3.4s ease-in-out infinite;
}
.nav__cta:hover { filter: brightness(1.08); border-color: var(--signal); }
@keyframes ctaNeon {
  0%, 100% { box-shadow: 0 0 6px rgba(217,217,0,0.40), 0 0 14px rgba(217,217,0,0.25); }
  45%      { box-shadow: 0 0 12px rgba(217,217,0,0.80), 0 0 30px rgba(217,217,0,0.50); }
  68%      { box-shadow: 0 0 7px rgba(217,217,0,0.45), 0 0 16px rgba(217,217,0,0.28); }
  72%      { box-shadow: 0 0 11px rgba(217,217,0,0.70), 0 0 24px rgba(217,217,0,0.45); }
}

/* link de la sección activa: mismo neón parpadeante que "fricción operativa" */
.nav__links a.is-active:not(.nav__cta) {
  color: var(--signal);
  text-shadow:
    0 0 5px rgba(217, 217, 0, 0.55),
    0 0 12px rgba(217, 217, 0, 0.38),
    0 0 20px rgba(217, 217, 0, 0.22);
  animation: hlFlicker 5s linear infinite;
}

.nav__burger {
  display: none; background: none; border: 0; cursor: pointer;
  flex-direction: column; gap: 6px; padding: 8px;
}
.nav__burger span {
  width: 26px; height: 2px; background: var(--mist);
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }

@media (max-width: 760px) {
  .nav__burger { display: flex; }
  .nav__links {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 4px;
    background: var(--carbon); border-bottom: 1px solid var(--steel);
    padding: 16px var(--gutter) 24px;
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: transform .3s var(--ease), opacity .3s var(--ease);
  }
  .nav__links.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav__links a { padding: 8px 0; font-size: 1.05rem; }
  .nav__cta { margin-top: 8px; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(70px, 12vw, 130px) var(--gutter) clamp(60px, 9vw, 110px);
}
/* fondo decorativo full-bleed: escapa del contenedor hasta el borde del viewport */
.hero__grid {
  position: absolute;
  top: -2px; bottom: -2px;
  left: calc((100% - 100vw) / 2);
  width: 100vw;
  background-image:
    linear-gradient(to right, var(--steel-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--steel-soft) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 75% 70% at 85% 30%, #000 35%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 75% 70% at 85% 30%, #000 35%, transparent 75%);
  opacity: .55;
  animation: gridDrift 22s linear infinite;
}
@keyframes gridDrift {
  from { background-position: 0 0, 0 0; }
  to   { background-position: 56px 56px, 56px 56px; }
}
.hero__glow {
  position: absolute;
  top: -180px;
  right: calc((100% - 100vw) / 2);
  width: 620px; height: 620px;
  background: radial-gradient(circle, var(--signal-glow), transparent 62%);
  filter: blur(30px);
  opacity: .5;
  pointer-events: none;
}
.hero__content { position: relative; z-index: 2; max-width: 880px; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.85rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--mist-dim);
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 28px;
}
.eyebrow__dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 0 var(--signal-glow);
  animation: pulse 2.4s var(--ease) infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(217,217,0,0.5); }
  70% { box-shadow: 0 0 0 10px rgba(217,217,0,0); }
  100% { box-shadow: 0 0 0 0 rgba(217,217,0,0); }
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 7vw, 5rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
}
.hl { color: var(--signal); }

/* efecto neón con falla: la "luz" se apaga y prende como letrero defectuoso */
.hl--flicker {
  text-shadow:
    0 0 5px rgba(217, 217, 0, 0.55),
    0 0 12px rgba(217, 217, 0, 0.38),
    0 0 22px rgba(217, 217, 0, 0.22);
}
/* parpadeo por letra: solo algunas "fallan" (las marca el JS) */
.hl--flicker .flk { animation: hlFlicker 4s linear infinite; }
@keyframes hlFlicker {
  0%, 100%        { opacity: 1; }
  8%              { opacity: 1; }
  8.5%            { opacity: 0.35; }   /* blip breve */
  9%              { opacity: 1; }
  40%             { opacity: 1; }
  40.5%           { opacity: 0.2; }    /* falla: doble parpadeo */
  41%             { opacity: 0.9; }
  41.6%           { opacity: 0.25; }
  42.4%           { opacity: 1; }
  68%             { opacity: 1; }
  68.6%           { opacity: 0.45; }
  69.2%           { opacity: 1; }
  70%             { opacity: 0.3; }
  70.6%           { opacity: 1; }
}

.hero__lead {
  margin-top: 30px;
  max-width: 620px;
  font-size: clamp(1.05rem, 1.8vw, 1.28rem);
  color: var(--mist-dim);
}
.hero__lead strong { color: var(--mist); }

.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }

/* terminal */
.terminal {
  margin-top: 52px;
  max-width: 620px;
  background: var(--carbon);
  border: 1px solid var(--steel);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 60px -30px rgba(0,0,0,0.8);
}
.terminal__bar {
  display: flex; align-items: center; gap: 7px;
  padding: 12px 16px;
  background: var(--carbon-2);
  border-bottom: 1px solid var(--steel);
}
.terminal__bar span {
  width: 11px; height: 11px; border-radius: 50%; background: var(--steel);
}
.terminal__bar span:first-child { background: var(--signal-dim); }
.terminal__bar em {
  margin-left: auto; font-family: var(--font-mono);
  font-size: 0.78rem; color: var(--mist-faint);
}
.terminal__body {
  padding: 20px 18px;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.85;
  white-space: pre-wrap;
  word-break: break-word;
}
.t-prompt { color: var(--signal); }
.t-cmd { color: var(--signal); font-weight: 700; }
.t-type { color: var(--signal); }
.t-out { color: var(--mist-dim); }
.t-ok { color: var(--signal); font-weight: 700; }
.t-cursor { color: var(--signal); animation: blink 1.1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ============================================================
   SISTEMA — loop de fondo (HyperFrames)
   ============================================================ */
.sysloop {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 58vh;
  overflow: hidden;
  border-top: 1px solid var(--steel);
  border-bottom: 1px solid var(--steel);
}

.sysloop__media {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: var(--void) url("../img/hero-sistema-poster.jpg") center / cover no-repeat;
}

.sysloop__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* el copy vive sobre la mitad izquierda: el video se apaga hacia ese lado */
.sysloop__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      to right,
      var(--void) 0%,
      rgba(10, 10, 11, 0.82) 28%,
      rgba(10, 10, 11, 0.28) 44%,
      rgba(10, 10, 11, 0) 52%
    ),
    linear-gradient(
      to bottom,
      rgba(10, 10, 11, 0.7) 0%,
      rgba(10, 10, 11, 0) 16%,
      rgba(10, 10, 11, 0) 84%,
      rgba(10, 10, 11, 0.7) 100%
    );
}

.sysloop__content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(72px, 8vw, 116px) var(--gutter);
}

/* el copy vive a la izquierda de la espina, que cae en el centro exacto del viewport:
   42vw lo mantiene siempre de este lado sin importar el ancho de pantalla */
.sysloop__title,
.sysloop__lead {
  max-width: min(480px, 40vw);
}

.sysloop__title {
  margin-top: 14px;
  font-family: var(--font-display);
  font-size: clamp(30px, 3.6vw, 46px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.sysloop__lead {
  margin-top: 20px;
  color: var(--mist-dim);
  font-size: clamp(16px, 1.4vw, 19px);
}

/* en móvil no hay columna libre: el loop deja de ser fondo y pasa a ser un bloque
   propio bajo el copy, encuadrado sobre el panel del sistema */
@media (max-width: 860px) {
  .sysloop {
    display: flex;
    flex-direction: column-reverse;
    min-height: 0;
  }
  .sysloop__media {
    position: relative;
    inset: auto;
    width: 100%;
    aspect-ratio: 5 / 4;
    background-position: 96% center;
  }
  /* el panel ocupa del 56% al 96% del ancho del video: el encuadre debe llegar al borde */
  .sysloop__video {
    object-position: 96% center;
  }
  .sysloop__scrim {
    background: linear-gradient(
      to bottom,
      rgba(10, 10, 11, 0.55) 0%,
      rgba(10, 10, 11, 0) 26%,
      rgba(10, 10, 11, 0) 74%,
      rgba(10, 10, 11, 0.55) 100%
    );
  }
  .sysloop__content {
    padding-bottom: clamp(36px, 7vw, 56px);
  }
  /* el copy ya no comparte fila con la espina: recupera el ancho completo */
  .sysloop__title,
  .sysloop__lead {
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sysloop__video {
    display: none;
  }
}

/* ============================================================
   SERVICIOS — cards
   ============================================================ */
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.card {
  position: relative;
  background: linear-gradient(180deg, var(--carbon), var(--steel-soft));
  border: 1px solid var(--steel);
  border-radius: var(--radius);
  padding: 34px 30px;
  overflow: hidden;
  transition: transform .4s var(--ease), border-color .4s var(--ease);
}
.card::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), rgba(217,217,0,0.10), transparent 45%);
  opacity: 0; transition: opacity .4s var(--ease);
}
.card:hover { transform: translateY(-4px); border-color: var(--signal-dim); }
.card:hover::before { opacity: 1; }
.card__idx {
  font-family: var(--font-mono);
  font-size: 0.78rem; letter-spacing: 0.1em;
  color: var(--signal);
  margin-bottom: 18px;
}
.card__title {
  font-family: var(--font-display);
  font-weight: 600; font-size: 1.4rem; line-height: 1.2;
  letter-spacing: -0.01em;
}
.card__text { color: var(--mist-dim); margin-top: 14px; font-size: 1rem; }
.card__tags {
  list-style: none; display: flex; flex-wrap: wrap; gap: 8px;
  margin-top: 22px;
}
.card__tags li {
  font-family: var(--font-mono); font-size: 0.74rem;
  color: var(--mist-dim);
  border: 1px solid var(--steel);
  padding: 5px 10px; border-radius: 20px;
}

/* ============================================================
   MÉTODO — steps
   ============================================================ */
.section--method { background: linear-gradient(180deg, transparent, rgba(19,19,22,0.5), transparent); max-width: none; }
.section--method > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  counter-reset: step;
}
.step {
  position: relative;
  border-top: 2px solid var(--steel);
  padding-top: 26px;
  transition: border-color .4s var(--ease);
}
.step:hover { border-top-color: var(--signal); }
.step__num {
  font-family: var(--font-mono);
  font-size: 0.85rem; color: var(--signal);
  display: block; margin-bottom: 16px;
}
.step__title {
  font-family: var(--font-display); font-weight: 600;
  font-size: 1.3rem; margin-bottom: 12px;
}
.step__text { color: var(--mist-dim); font-size: 0.98rem; }

/* ============================================================
   PERFIL
   ============================================================ */
.profile {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}
.profile__exec {
  margin-top: 30px;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  line-height: 1.4;
  color: var(--mist);
  border-left: 3px solid var(--signal);
  padding-left: 22px;
}
.traits {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.trait {
  background: var(--carbon);
  border: 1px solid var(--steel);
  border-radius: var(--radius);
  padding: 24px 22px;
  transition: transform .4s var(--ease), border-color .4s var(--ease);
}
.trait:hover { transform: translateY(-3px); border-color: var(--signal-dim); }
.trait__idx { font-family: var(--font-mono); color: var(--signal); font-size: 0.8rem; margin-bottom: 14px; }
.trait__title { font-family: var(--font-display); font-weight: 600; font-size: 1.12rem; line-height: 1.25; margin-bottom: 10px; }
.trait__text { color: var(--mist-dim); font-size: 0.95rem; }

/* ============================================================
   INFRAESTRUCTURA — stack de capas
   ============================================================ */
.infra {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}
.stack {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  counter-reset: layer;
}
.layer {
  position: relative;
  background: linear-gradient(90deg, var(--carbon), var(--steel-soft));
  border: 1px solid var(--steel);
  border-left: 3px solid var(--steel);
  border-radius: 0 10px 10px 0;
  padding: 18px 22px;
  transition: transform .35s var(--ease), border-color .35s var(--ease), background .35s var(--ease);
}
.layer::after {
  content: "";
  position: absolute; left: -3px; top: 50%;
  width: 3px; height: 0;
  background: var(--signal);
  transform: translateY(-50%);
  transition: height .35s var(--ease);
}
.layer:hover {
  transform: translateX(6px);
  border-color: var(--signal-dim);
  background: linear-gradient(90deg, var(--carbon-2), var(--steel-soft));
}
.layer:hover::after { height: calc(100% + 2px); }
.layer__tag {
  font-family: var(--font-mono);
  font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--signal);
}
.layer__name {
  font-family: var(--font-display);
  font-weight: 600; font-size: 1.12rem;
  margin: 6px 0 6px;
}
.layer__det { color: var(--mist-dim); font-size: 0.92rem; }

@media (max-width: 900px) {
  .infra { grid-template-columns: 1fr; }
}

/* ============================================================
   CAPACIDADES — chips
   ============================================================ */
.chips {
  list-style: none;
  display: flex; flex-wrap: wrap; gap: 12px;
}
.chips li {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--mist);
  background: var(--carbon);
  border: 1px solid var(--steel);
  padding: 11px 18px;
  border-radius: 9px;
  transition: transform .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
}
.chips li:hover {
  color: var(--signal); border-color: var(--signal-dim);
  transform: translateY(-3px);
  background: var(--carbon-2);
}

/* ============================================================
   PROYECTO / OPEN SOURCE
   ============================================================ */
.project {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: clamp(24px, 4vw, 48px);
  background: linear-gradient(135deg, var(--carbon), var(--steel-soft));
  border: 1px solid var(--steel);
  border-radius: var(--radius);
  padding: clamp(28px, 4vw, 46px);
  overflow: hidden;
  transition: border-color .4s var(--ease);
}
.project__main { min-width: 0; }
.project__visual {
  position: relative; z-index: 1;
  display: flex; align-items: center; justify-content: center;
  flex: 0 0 auto;
}
.project__visual img {
  width: clamp(120px, 14vw, 180px);
  height: auto;
  filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.45));
  transition: transform .4s var(--ease);
}
.project:hover .project__visual img { transform: translateY(-4px) rotate(-2deg); }
@media (max-width: 680px) {
  .project { grid-template-columns: 1fr; }
  .project__visual { order: -1; justify-content: flex-start; }
  .project__visual img { width: 96px; }
}
.project:hover { border-color: var(--signal-dim); }
.project::after {
  content: "";
  position: absolute; right: -90px; top: -90px;
  width: 300px; height: 300px;
  background: radial-gradient(circle, var(--signal-glow), transparent 65%);
  opacity: .22;
  pointer-events: none;
}
.project__head {
  position: relative; z-index: 1;
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  margin-bottom: 16px;
}
.project__name {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -0.02em;
}
.project__badge {
  font-family: var(--font-mono); font-size: 0.72rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--signal);
  border: 1px solid var(--signal-dim);
  padding: 4px 10px; border-radius: 20px;
}
.project__desc {
  position: relative; z-index: 1;
  color: var(--mist-dim); max-width: 640px; font-size: 1.05rem;
}
.project__tags {
  position: relative; z-index: 1;
  list-style: none; display: flex; flex-wrap: wrap; gap: 8px;
  margin: 22px 0 28px;
}
.project__tags li {
  font-family: var(--font-mono); font-size: 0.74rem; color: var(--mist-dim);
  border: 1px solid var(--steel); padding: 5px 10px; border-radius: 20px;
}
.project__actions {
  position: relative; z-index: 1;
  display: flex; flex-wrap: wrap; gap: 14px;
}
.project__actions .btn svg { width: 18px; height: 18px; margin-right: 8px; }

/* ============================================================
   CONTACTO
   ============================================================ */
.section--contact { }
.contact {
  display: grid;
  grid-template-columns: 1fr 1.2fr; /* form un poco más ancho para que quepan Turnstile + botón en una línea */
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}
.contact__note {
  margin-top: 26px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--signal);
  border: 1px dashed var(--signal-dim);
  padding: 16px 18px;
  border-radius: 10px;
}
/* accesos directos de contacto (correo / WhatsApp) */
.contact__links { display: flex; flex-direction: column; gap: 12px; margin-top: 26px; }
.contact__link {
  display: inline-flex; align-items: center; gap: 14px;
  background: var(--carbon);
  border: 1px solid var(--steel);
  border-radius: var(--radius);
  padding: 13px 18px;
  transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
}
.contact__link:hover { transform: translateY(-2px); border-color: var(--signal-dim); background: var(--carbon-2); }
.contact__ico {
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; flex: 0 0 42px;
  border-radius: 10px;
  background: rgba(217, 217, 0, 0.10);
  color: var(--signal);
  transition: background .3s var(--ease);
}
.contact__link:hover .contact__ico { background: rgba(217, 217, 0, 0.18); }
.contact__ico svg { width: 22px; height: 22px; display: block; }
.contact__txt { display: flex; flex-direction: column; line-height: 1.3; min-width: 0; }
.contact__label {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--mist-dim);
}
.contact__val { color: var(--mist); font-weight: 600; font-size: 1rem; word-break: break-word; }
.contact__link:hover .contact__val { color: var(--signal); }

.form { display: flex; flex-direction: column; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field label {
  font-family: var(--font-mono);
  font-size: 0.8rem; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--mist-dim);
}
.field input, .field textarea {
  background: var(--carbon);
  border: 1px solid var(--steel);
  border-radius: 9px;
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 14px 16px;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
  resize: vertical;
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--signal);
  box-shadow: 0 0 0 3px rgba(217,217,0,0.12);
}
.field--hp { position: absolute; left: -9999px; height: 0; overflow: hidden; }
.form__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px 16px;
  flex-wrap: wrap;
  margin-top: 4px;
}
.form__submit { flex: 0 0 auto; height: 65px; } /* misma altura que el widget de Turnstile */
/* Turnstile flexible: limitado a 300px en desktop (junto al botón) */
.form__actions .cf-turnstile { flex: 0 0 300px; max-width: 100%; }

/* estado de envío: ola de color que fluye entre naranja y amarillo */
.btn--primary.is-sending {
  color: #0A0A0B;
  background-image: linear-gradient(90deg,
    #f97316, #f59e0b, #fbbf24, #D9D900, #fbbf24, #f59e0b, #f97316);
  background-size: 300% 100%;
  background-repeat: no-repeat;
  animation: btnFlow .9s linear infinite;
}
.btn--primary.is-sending:hover { transform: none; box-shadow: none; }
@keyframes btnFlow {
  from { background-position: 0% 50%; }
  to   { background-position: 100% 50%; }
}
.form__status {
  font-family: var(--font-mono); font-size: 0.88rem; min-height: 1.2em;
}
.form__status.is-ok { color: var(--signal); }
.form__status.is-err { color: #ff6b6b; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--steel);
  padding: clamp(50px, 7vw, 80px) var(--gutter) 40px;
  max-width: var(--maxw); margin: 0 auto;
}
.footer__inner {
  display: flex; flex-wrap: wrap; gap: 32px;
  justify-content: space-between; align-items: flex-start;
}
.footer__brand img { height: 32px; width: auto; margin-bottom: 16px; }
.footer__brand p { color: var(--mist-dim); max-width: 360px; font-size: 0.95rem; }
.footer__nav { display: flex; flex-wrap: wrap; gap: 22px; }
.footer__nav a { color: var(--mist-dim); font-size: 0.95rem; transition: color .2s var(--ease); }
.footer__nav a:hover { color: var(--signal); }
.footer__bottom {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
  margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--steel-soft);
  color: var(--mist-faint); font-size: 0.85rem;
}
.footer__mono { font-family: var(--font-mono); }

/* ============================================================
   REVEAL animation
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }
/* stagger children grids */
.cards .reveal:nth-child(2) { transition-delay: .08s; }
.cards .reveal:nth-child(3) { transition-delay: .16s; }
.cards .reveal:nth-child(4) { transition-delay: .24s; }
.steps .reveal:nth-child(2) { transition-delay: .08s; }
.steps .reveal:nth-child(3) { transition-delay: .16s; }
.steps .reveal:nth-child(4) { transition-delay: .24s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .cards { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .profile, .contact { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .traits { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .hero__actions .btn { flex: 1; }
  /* en móvil, Turnstile y botón a ancho completo (apilados) */
  .form__actions { gap: 14px; }
  .form__actions .cf-turnstile { flex: 1 1 100%; }
  .form__submit { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .spine__progress { stroke-dashoffset: 0 !important; }
}