/* ==========================================================================
   XYZ — Landing. Tokens del design system (Paleta 01 Señal) + estilos de página.
   Sistema plano: radio 0, sin sombras, secciones separadas por reglas.
   ========================================================================== */

:root {
  /* Paleta 01 Señal */
  --color-ink: #08181A;
  --color-ink-2: #0A1A1B;
  --color-mint: #35BE96;
  --color-pine: #0E7C66;
  --color-bone: #F5F4F0;
  --color-mist: #C9CFCC;
  --color-ink-deep: #08322A;

  /* Alias semánticos (tema claro) */
  --surface-page: var(--color-bone);
  --text-body: var(--color-ink-2);
  --text-strong: var(--color-ink);
  --text-muted: #4A5654;
  --text-link: var(--color-pine);
  --text-kicker: var(--color-pine);
  --rule-structural: var(--color-ink);
  --rule-internal: var(--color-mist);
  --rule-on-inverse: #1E3A38;
  --focus-ring: var(--color-mint);

  /* Tipografía */
  --font-display: "Anybody", "Kumbh Sans", system-ui, sans-serif;
  --font-structure: "Jost", system-ui, sans-serif;
  --font-text: "Chivo", system-ui, sans-serif;
  --font-label: "Sora", system-ui, sans-serif;
  --track-logo: -0.05em;
  --track-label: 0.06em;
  --track-nav: 0.02em;

  /* Layout */
  --gutter: clamp(20px, 6.1vw, 88px);
  --section-y: clamp(56px, 6.4vw, 92px);
  --max-w: 1440px;

  /* Movimiento */
  --ease: cubic-bezier(0.2, 0, 0.2, 1);
  --dur: 180ms;
  --transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), opacity var(--dur) var(--ease);

  --radius: 0px;
  --nav-h: 76px;
}

.xyz-dark {
  --surface-page: var(--color-ink);
  --text-body: var(--color-bone);
  --text-strong: var(--color-bone);
  --text-muted: #8FA09D;
  --text-link: var(--color-mint);
  --text-kicker: var(--color-mint);
  --rule-structural: var(--color-bone);
  --rule-internal: var(--rule-on-inverse);
  color: var(--text-body);
  background: var(--surface-page);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
/* Sin "text autosizing": los navegadores móviles agrandan el texto de bloques anchos al rotar a horizontal
   (la celda 3 de Servicios, que ocupa todo el ancho) y dejan igual los párrafos cortos (03 Construimos).
   Con esto todos los tamaños son los del CSS. */
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; -moz-text-size-adjust: 100%; text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--surface-page);
  color: var(--text-body);
  font-family: var(--font-text);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-wrap: pretty;
}
h1, h2, h3 { margin: 0; text-wrap: balance; }
p { margin: 0; }
img { display: block; }
a {
  color: var(--text-link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: var(--transition);
}
a:hover { color: var(--color-mint); text-decoration-thickness: 2px; }
a:active { opacity: .72; }
:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }

.container { max-width: var(--max-w); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }

/* ---------- Texto de sistema ---------- */
.kicker {
  font-family: var(--font-label);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  line-height: 1.6;
  color: var(--text-kicker);
}
.kicker--mint { color: var(--color-mint); }
.kicker--muted { color: var(--text-muted); }
.label {
  font-family: var(--font-label);
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.6;
}
.label--mist { color: var(--color-mist); }
.label--bone { color: var(--color-bone); font-weight: 500; letter-spacing: 0.07em; }
.label--muted { color: var(--text-muted); }
.xyz-logotype { font-family: var(--font-structure); font-weight: 700; letter-spacing: var(--track-logo); }
.section__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-stretch: 125%;
  font-size: clamp(30px, 3.2vw, 36px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--text-strong);
  margin: 16px 0 44px;
}

/* ---------- Button (DS: Button.jsx) ---------- */
.btn {
  font-family: var(--font-label);
  font-weight: 500;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  border-radius: var(--radius);
  box-shadow: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  transition: var(--transition);
  text-decoration: none;
  line-height: 1;
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn--sm { font-size: 11px; padding: 10px 14px; }
.btn--md { font-size: 12px; padding: 14px 20px; }
.btn--lg { font-size: 13px; padding: 18px 26px; }
.btn--primary { background: var(--color-mint); color: var(--color-ink-deep); border-color: var(--color-mint); }
.btn--primary:hover { background: var(--color-pine); border-color: var(--color-pine); color: var(--color-bone); }
.btn--inverse { background: var(--color-bone); color: var(--color-ink); border-color: var(--color-bone); }
.btn--inverse:hover { background: var(--color-mint); border-color: var(--color-mint); color: var(--color-ink-deep); }
.btn:active { opacity: .82; }

/* ---------- Tag (DS: Tag.jsx) ---------- */
.tag {
  font-family: var(--font-label);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  line-height: 1.2;
  padding: 6px 10px;
  display: inline-block;
  align-self: flex-start;
  border-radius: 0;
}
.tag--mint { background: var(--color-mint); color: var(--color-ink-deep); border: 1px solid var(--color-mint); }

/* ---------- Nav (DS: Nav.jsx, tone dark) ---------- */
.nav-wrap { position: sticky; top: 0; z-index: 20; background: var(--color-ink); }
.nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 36px;
  padding: 20px var(--gutter);
  background: var(--color-ink);
  color: var(--color-bone);
  border-bottom: 2px solid var(--rule-on-inverse);
  max-width: var(--max-w);
  margin: 0 auto;
}
.nav__brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: inherit; }
.nav__brand:hover { color: inherit; }
.nav__brand .xyz-logotype { font-size: 22px; line-height: 1; }
.nav__items { display: flex; align-items: center; gap: 36px; list-style: none; margin: 0; padding: 0; }
.nav__items a {
  font-family: var(--font-structure);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: var(--track-nav);
  text-decoration: none;
  color: inherit;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
  opacity: .72;
  transition: var(--transition);
}
.nav__items a:hover, .nav__items a.is-active { opacity: 1; border-bottom-color: var(--color-mint); color: inherit; }
.nav__cta { margin-left: auto; }
.nav__toggle {
  display: none;
  margin-left: auto;
  font-family: var(--font-label);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  background: transparent;
  color: var(--color-bone);
  border: 2px solid var(--color-bone);
  padding: 10px 14px;
  cursor: pointer;
  line-height: 1;
  transition: var(--transition);
}
.nav__toggle:hover, .nav__toggle[aria-expanded="true"] { background: var(--color-bone); color: var(--color-ink); }

@media (max-width: 1000px) {
  .nav { gap: 20px; }
  .nav__toggle { display: inline-flex; }
  .nav__cta { display: none; margin-left: 0; }
  .nav__items {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    flex-basis: 100%;
    border-top: 1px solid var(--rule-on-inverse);
    padding-top: 8px;
  }
  .nav__items li { width: 100%; }
  .nav__items a { display: block; padding: 14px 0; border-bottom: 1px solid var(--rule-on-inverse); font-size: 17px; }
  .nav__items a.is-active { border-bottom-color: var(--rule-on-inverse); color: var(--color-mint); }
  .nav.is-open .nav__items { display: flex; }
  .nav.is-open .nav__cta { display: block; flex-basis: 100%; padding: 16px 0 4px; }
}

/* ---------- Hero ---------- */
.hero { border-bottom: 2px solid var(--color-ink); }
.hero__inner {
  padding-top: clamp(56px, 7vw, 96px);
  padding-bottom: clamp(64px, 8vw, 110px);
  display: flex;
  flex-wrap: wrap;
  gap: clamp(36px, 5vw, 64px);
  align-items: center;
  justify-content: space-between;
}
.hero__copy { flex: 1 1 520px; min-width: min(320px, 100%); display: flex; flex-direction: column; align-items: flex-start; gap: 28px; }
.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-stretch: 125%;
  font-size: clamp(30px, 8.8vw, 72px);
  line-height: 0.94;
  letter-spacing: -0.01em;
  color: var(--color-bone);
  max-width: 10.2em;
}
.hero__lead { max-width: 52ch; font-size: clamp(18px, 1.6vw, 22px); line-height: 1.5; color: var(--color-mist); }
.hero__actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.hero__proof { display: flex; gap: 16px; align-items: baseline; flex-wrap: wrap; border-top: 1px solid var(--color-ink-deep); padding-top: 20px; }
.hero__proof-names { font-family: var(--font-structure); font-weight: 600; font-size: 15px; color: var(--color-bone); }
.hero__cube { flex: 0 0 auto; width: clamp(220px, 28vw, 380px); aspect-ratio: 380 / 420; }
xyz-cube-3d { display: block; width: 100%; height: 100%; }
xyz-cube-3d canvas { display: block; }
/* Fallback sin WebGL: logo SVG + letra activa (solo en modo cara) */
xyz-cube-3d .cube-fallback { position: relative; width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }
xyz-cube-3d .cube-fallback img { width: auto; height: auto; max-width: 72%; max-height: 86%; }
xyz-cube-3d .cube-fallback__letter {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-stretch: 125%; font-size: 42%; line-height: 1;
  color: var(--color-mint); pointer-events: none;
}
xyz-cube-3d[data-face="iso"] .cube-fallback__letter { display: none; }
/* Pantallas estrechas: el cubo va arriba del texto, centrado */
@media (max-width: 900px) {
  .hero__inner { justify-content: center; }
  .hero__cube { order: -1; width: min(260px, 60vw); max-height: 40vh; }
  .hero__copy { flex-basis: 100%; }
}

/* ---------- Secciones claras ---------- */
.section { border-top: 2px solid var(--color-ink); }
.section > .container { padding-top: var(--section-y); padding-bottom: var(--section-y); }

/* Servicios: celdas separadas por reglas de 1px en cualquier wrap */
.cells {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--color-mist);
  border-top: 1px solid var(--color-mist);
  border-bottom: 1px solid var(--color-mist);
}
.cell { background: var(--color-bone); padding: clamp(24px, 3vw, 36px); display: flex; flex-direction: column; gap: 14px; }
.cell__title { font-family: var(--font-structure); font-weight: 600; font-size: 20px; color: var(--color-ink); }
.cell__text { font-size: 16px; line-height: 1.6; color: var(--text-muted); }
@media (max-width: 1000px) {
  .cells { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cell:last-child:nth-child(odd) { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .cells { grid-template-columns: minmax(0, 1fr); }
}

/* Por qué XYZ: texto que se desplaza + cubo fijo que presenta la cara de cada letra */
.porque { display: grid; grid-template-columns: minmax(0, 1fr) clamp(280px, 34vw, 440px); gap: clamp(36px, 6vw, 96px); align-items: start; }
.porque__text { display: flex; flex-direction: column; }
.porque__text .section__title { margin-bottom: 8px; max-width: 18em; }
.porque__block { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; padding: clamp(56px, 10vh, 120px) 0; border-top: 1px solid var(--color-mist); min-height: 60vh; justify-content: center; }
.porque__block:first-of-type { border-top: 0; }
.porque__letter { font-family: var(--font-display); font-weight: 700; font-stretch: 125%; font-size: clamp(56px, 8vw, 96px); line-height: 0.9; letter-spacing: -0.02em; color: var(--color-mint); margin-bottom: 8px; }
.porque__title { font-family: var(--font-display); font-weight: 700; font-stretch: 125%; font-size: clamp(24px, 2.6vw, 32px); line-height: 1.1; letter-spacing: -0.01em; color: var(--color-ink); max-width: 18em; }
.porque__body { max-width: 52ch; font-size: 17px; line-height: 1.6; color: var(--text-muted); }
.porque__figure { font-family: var(--font-display); font-weight: 700; font-stretch: 125%; font-size: clamp(40px, 6vw, 72px); line-height: 0.94; color: var(--color-mint); margin-top: 16px; }
.label--pine { color: var(--color-pine); font-weight: 500; }
.porque__more { padding-top: 28px; border-top: 1px solid var(--color-mist); }
.porque__more a { font-family: var(--font-label); font-weight: 500; font-size: 12px; letter-spacing: var(--track-label); text-transform: uppercase; text-decoration: none; border-bottom: 2px solid var(--color-mint); padding-bottom: 4px; }
.porque__cube { position: sticky; top: calc(var(--nav-h) + 24px); aspect-ratio: 1 / 1.05; width: 100%; display: flex; align-items: center; justify-content: center; background: transparent; }
.porque__cube xyz-cube-3d { width: 100%; height: 100%; }
@media (max-width: 900px) {
  .porque { grid-template-columns: minmax(0, 1fr); gap: 0; }
  /* Banda fija bajo la nav: el cubo se queda y el texto pasa por debajo */
  /* Fondo bone (no ink): la banda debe fundirse con la sección clara */
  .porque__cube { order: -1; top: var(--nav-h); aspect-ratio: auto; height: 180px; margin: 0 calc(-1 * var(--gutter)); width: auto; background: var(--color-bone); border-bottom: 1px solid var(--color-mist); z-index: 5; }
  .porque__cube xyz-cube-3d { width: 240px; height: 180px; }
  .porque__block { min-height: 0; padding: 48px 0; }
  .porque__text .section__title { padding-top: 36px; }
}

/* Proceso */
.proceso { display: flex; flex-wrap: wrap; gap: clamp(36px, 5vw, 64px); }
.proceso__steps { flex: 1 1 480px; min-width: min(320px, 100%); }
.steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.step { display: flex; gap: 28px; padding: 28px 0; border-top: 1px solid var(--color-mist); }
.step:last-child { border-bottom: 1px solid var(--color-mist); }
.step__num { font-family: var(--font-label); font-weight: 500; font-size: 11px; letter-spacing: 0.07em; color: var(--color-pine); padding-top: 5px; flex: 0 0 auto; }
.step__body { display: flex; flex-direction: column; gap: 8px; }
.step__title { font-family: var(--font-structure); font-weight: 600; font-size: 18px; color: var(--color-ink); }
.step__text { font-size: 16px; line-height: 1.6; color: var(--text-muted); }
.proceso__figure {
  flex: 1 1 320px;
  max-width: 480px;
  min-width: min(280px, 100%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
  padding: clamp(28px, 3vw, 36px);
}
.figure { font-family: var(--font-display); font-weight: 700; font-stretch: 125%; font-size: clamp(40px, 9vw, 88px); line-height: 0.94; color: var(--color-mint); }
@media (max-width: 900px) { .proceso__figure { max-width: none; } }
.proceso__cta { margin-top: 16px; }

/* Casos */
.cases { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(340px, 100%), 1fr)); gap: 36px; }
.case { border: 2px solid var(--color-ink); padding: clamp(24px, 3vw, 36px); display: flex; flex-direction: column; gap: 16px; }
.case__title { font-family: var(--font-display); font-weight: 700; font-stretch: 125%; font-size: 28px; line-height: 1.1; letter-spacing: -0.01em; color: var(--color-ink); }
.case__text { font-size: 16px; line-height: 1.6; color: var(--text-muted); }

/* Sobre */
.sobre { display: flex; flex-direction: column; gap: 20px; align-items: flex-start; }
.sobre .section__title { margin: 0; }
.sobre__text { max-width: 58ch; font-size: 16px; line-height: 1.6; color: var(--text-body); }

/* Contacto */
.contacto { border-top: 2px solid var(--color-ink); }
.contacto__inner { padding-top: clamp(64px, 8vw, 110px); padding-bottom: clamp(64px, 8vw, 110px); display: flex; flex-direction: column; align-items: flex-start; gap: 28px; }
.contacto__title { font-family: var(--font-display); font-weight: 700; font-stretch: 125%; font-size: clamp(32px, 4vw, 56px); line-height: 0.94; letter-spacing: -0.01em; color: var(--color-bone); }
.contacto__text { max-width: 52ch; font-size: 18px; line-height: 1.6; color: var(--color-mist); }
.contacto__actions { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; }
.contacto__email { font-family: var(--font-structure); font-weight: 500; font-size: 16px; color: var(--color-mint); overflow-wrap: anywhere; }
.contacto__email:hover { color: var(--color-bone); }

/* Footer */
.footer { border-top: 2px solid var(--color-ink); }
.footer__inner { padding-top: 36px; padding-bottom: 36px; display: flex; flex-wrap: wrap; gap: 24px; align-items: baseline; justify-content: space-between; }
.footer__logo { font-size: 18px; color: var(--color-ink); }
.footer__right { display: flex; gap: 24px; align-items: baseline; flex-wrap: wrap; }
.footer__email { font-size: 13px; }
.footer__copy { font-size: 13px; color: var(--text-muted); }

/* Anclas: dejar espacio para la nav fija */
[id^="sec-"] { scroll-margin-top: var(--nav-h); }
@media (max-width: 1000px) { :root { --nav-h: 70px; } }