/* =========================================================
   VANTAR Technologies
   1. Tokens
   2. Base
   3. Primitivas (shell, eyebrow, botones, SVG)
   4. Header / nav
   5. Secciones
   6. Footer
   7. Movimiento
   8. Responsive
   ========================================================= */

/* ---------- 1. Tokens ---------- */
:root {
  --paper:       #FFFFFF;
  --paper-alt:   #F7F7F5;
  --ink:         #0A0A0A;
  --ink-soft:    #3A3A38;
  --muted:       #6B6B67;
  --hairline:    #DEDEDA;
  --hairline-2:  #D9D9D5;
  --invert:      #FFFFFF;
  --invert-soft: #C9C9C6;
  --invert-dim:  #3A3A38;
  --invert-mute: #9A9A96;

  --display: 'Syne', 'Trebuchet MS', sans-serif;
  --body:    'Space Grotesk', 'Helvetica Neue', Helvetica, sans-serif;
  --mono:    'Space Mono', ui-monospace, 'SFMono-Regular', monospace;

  --shell:   1440px;
  --gutter:  clamp(20px, 5.5vw, 80px);
  --pad-y:   clamp(64px, 8vw, 80px);

  --track-xs: 0.16em;
  --track-sm: 0.18em;
  --track-md: 0.24em;
  --track-lg: 0.28em;

  color-scheme: light;
}

/* ---------- 1b. Tokens invertidos ----------
   Todo el sitio se pinta con los tokens de arriba, así que el modo
   oscuro sólo intercambia valores: nada de reglas duplicadas.
   `--invert` es "lo contrario de la tinta", por eso la sección de
   contacto se vuelve la banda clara del recorrido.               */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper:       #0A0A0A;
    --paper-alt:   #121211;
    --ink:         #FFFFFF;
    --ink-soft:    #C9C9C6;
    --muted:       #8A8A86;
    --hairline:    #2E2E2B;
    --hairline-2:  #262624;
    --invert:      #0A0A0A;
    --invert-soft: #3A3A38;
    --invert-dim:  #D9D9D5;
    --invert-mute: #6B6B67;

    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --paper:       #0A0A0A;
  --paper-alt:   #121211;
  --ink:         #FFFFFF;
  --ink-soft:    #C9C9C6;
  --muted:       #8A8A86;
  --hairline:    #2E2E2B;
  --hairline-2:  #262624;
  --invert:      #0A0A0A;
  --invert-soft: #3A3A38;
  --invert-dim:  #D9D9D5;
  --invert-mute: #6B6B67;

  color-scheme: dark;
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 {
  margin: 0;
  font-family: var(--display);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.06;
  text-wrap: pretty;
}

p  { margin: 0; }
ul, ol, dl, dd { margin: 0; padding: 0; }
li { list-style: none; }

a {
  color: inherit;
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease;
}

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

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--ink);
  color: var(--invert);
  padding: 12px 20px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: var(--track-sm);
  text-transform: uppercase;
}
.skip-link:focus { left: 0; }

/* ---------- 3. Primitivas ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: var(--track-lg);
  text-transform: uppercase;
  color: var(--muted);
}
.eyebrow--invert { color: var(--invert-mute); }

.lede {
  max-width: 48ch;
  font-size: clamp(15px, 1.2vw, 17px);
  line-height: 1.65;
  color: var(--ink-soft);
}
.lede--sm { font-size: 15px; }
.lede--invert { color: var(--invert-soft); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 30px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: var(--track-sm);
  text-transform: uppercase;
  border: 1px solid var(--ink);
  white-space: nowrap;
}
.btn--solid  { background: var(--ink); color: var(--invert); }
.btn--solid:hover  { background: var(--paper); color: var(--ink); }
.btn--outline { background: transparent; color: var(--ink); }
.btn--outline:hover { background: var(--ink); color: var(--invert); }
.btn--invert { background: var(--invert); color: var(--ink); border-color: var(--invert); }
.btn--invert:hover { background: transparent; color: var(--invert); }

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}
.actions--invert { gap: 24px; }

/* trazos SVG compartidos */
.s-ink       { stroke: var(--ink); stroke-width: 1; fill: none; }
.s-thick     { stroke-width: 1.2; }
.s-hair      { stroke: var(--hairline); stroke-width: 1; fill: none; }
.s-dash      { stroke-dasharray: 2 6; }
.s-dash-sm   { stroke-dasharray: 3 4; }
.s-dash-lg   { stroke-dasharray: 3 5; }
.s-invert    { stroke: var(--invert); stroke-width: 0.9; fill: none; }
.s-invert-dim{ stroke: var(--invert-dim); stroke-width: 1; fill: none; }
.f-ink       { fill: var(--ink); }
.f-invert    { fill: var(--invert); }
.node        { fill: var(--paper-alt); stroke: var(--ink); stroke-width: 1; }

.svg-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.6px;
  fill: var(--ink);
}
.svg-label--muted { fill: var(--muted); font-size: 10px; }

/* ---------- 4. Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--hairline);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 80px;
}

.site-header__tools {
  display: flex;
  align-items: center;
  gap: 12px;
  order: 3;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-right: auto;
}
.wordmark__name {
  font-family: var(--display);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.30em;
}
.wordmark__rule { width: 1px; height: 18px; background: var(--hairline); }
.wordmark__sub {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: var(--track-md);
  text-transform: uppercase;
  color: var(--muted);
}

.nav { display: flex; align-items: center; gap: 40px; }
.nav__list { display: flex; align-items: center; gap: 40px; }
.nav__link {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: var(--track-sm);
  text-transform: uppercase;
  padding: 14px 0;
}
.nav__link:hover { color: var(--muted); }
.nav__cta { min-height: 44px; padding: 0 24px; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.lang { position: relative; display: flex; }
.lang__select {
  appearance: none;
  -webkit-appearance: none;
  height: 48px;
  padding: 0 30px 0 14px;
  background: none;
  border: 1px solid var(--hairline);
  border-radius: 0;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: var(--track-sm);
  cursor: pointer;
}
.lang__select:hover { border-color: var(--ink); }
.lang__select option { color: var(--ink); background: var(--paper); }
.lang__caret {
  position: absolute;
  right: 12px;
  top: 50%;
  width: 10px;
  height: 6px;
  transform: translateY(-50%);
  pointer-events: none;
  fill: none;
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  padding: 0;
  background: none;
  border: 1px solid var(--hairline);
  color: var(--ink);
  cursor: pointer;
}
.icon-btn:hover { border-color: var(--ink); }
.icon-btn__glyph {
  width: 20px;
  height: 20px;
  fill: none;
  transition: transform 320ms cubic-bezier(0.22, 1, 0.36, 1);
}
:root[data-theme="dark"] .icon-btn__glyph { transform: rotate(180deg); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-btn__glyph { transform: rotate(180deg); }
  :root[data-theme="light"] .icon-btn__glyph { transform: none; }
}

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  padding: 0;
  background: none;
  border: 1px solid var(--hairline);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.nav-toggle__bar {
  width: 20px;
  height: 1px;
  background: var(--ink);
  transition: transform 180ms ease, opacity 180ms ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:first-child {
  transform: translateY(3.5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

/* ---------- 5. Secciones ---------- */

/* HERO */
.hero { border-bottom: 1px solid var(--hairline); }
.hero__inner {
  display: flex;
  align-items: center;
  gap: clamp(40px, 5vw, 64px);
  padding-block: clamp(64px, 7vw, 80px);
  min-height: min(720px, 86vh);
}
.hero__copy {
  flex: 1 1 560px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}
.hero__title {
  font-size: clamp(38px, 5.4vw, 72px);
  letter-spacing: -0.02em;
  max-width: 13ch;
}
.hero__figure {
  flex: 0 1 520px;
  display: flex;
  justify-content: center;
}
.orbit { width: 100%; max-width: 520px; height: auto; }

.spec-row {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--hairline);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: var(--track-xs);
  text-transform: uppercase;
  color: var(--muted);
}
.spec-row li { flex: 1 1 180px; }

/* TIRA */
.strip { border-bottom: 1px solid var(--hairline); }
.strip__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 28px;
  min-height: 76px;
  padding-block: 20px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--muted);
}
.strip__inner span { position: relative; }
.strip__inner span + span::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 50%;
  width: 1px;
  height: 12px;
  transform: translateY(-50%);
  background: var(--hairline);
}

/* SECCIÓN GENÉRICA */
.section {
  padding-block: var(--pad-y);
  border-bottom: 1px solid var(--hairline);
}
.section--alt { background: var(--paper-alt); }

.section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: clamp(32px, 5vw, 64px);
  margin-bottom: 56px;
}
.section__head--stacked { align-items: flex-start; margin-bottom: 48px; }
.section__head > div { display: flex; flex-direction: column; gap: 20px; }
.section__title {
  font-size: clamp(28px, 3.2vw, 44px);
  max-width: 16ch;
}
.section__note {
  width: 360px;
  flex-shrink: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* BLOQUES */
.blocks {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 40px;
}
.block {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding-top: 20px;
  border-top: 1px solid var(--ink);
}
.block__index {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--muted);
}
.block__icon { width: 40px; height: 40px; }
.block__title {
  font-family: var(--display);
  font-weight: 500;
  font-size: 20px;
  letter-spacing: -0.005em;
}
.block__text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* PERFIL DE MISIÓN */
.scroller { overflow-x: auto; overscroll-behavior-x: contain; }
.profile { width: 100%; min-width: 760px; height: auto; }

.foot-rule {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 24px;
  margin-top: 32px;
  padding-top: 22px;
  border-top: 1px solid var(--hairline);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: var(--track-xs);
  text-transform: uppercase;
  color: var(--muted);
}

/* PLATAFORMA */
.platform {
  display: flex;
  align-items: center;
  gap: clamp(40px, 6vw, 80px);
}
.platform__figure { flex: 0 1 520px; }
.exploded { width: 100%; max-width: 520px; height: auto; }
.platform__copy {
  flex: 1 1 520px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.specs { display: flex; flex-direction: column; }
.specs__row {
  display: flex;
  gap: 32px;
  padding-block: 16px;
  border-top: 1px solid var(--hairline);
}
.specs__row:last-child { border-bottom: 1px solid var(--hairline); }
.specs dt {
  width: 130px;
  flex-shrink: 0;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: var(--track-sm);
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 2px;
}
.specs dd {
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-soft);
}

/* SOCIOS */
.partners {
  padding-block: clamp(48px, 6vw, 64px);
  border-bottom: 1px solid var(--hairline);
}
.partners__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 24px;
  margin-bottom: 28px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: var(--track-md);
  text-transform: uppercase;
  color: var(--muted);
}
.partners__grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 24px;
}
.partners__grid li {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 64px;
  border: 1px solid var(--hairline);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: var(--track-sm);
  color: var(--muted);
}

/* CONTACTO */
.cta {
  background: var(--ink);
  color: var(--invert);
  padding-block: var(--pad-y);
}
.cta__inner {
  display: flex;
  align-items: center;
  gap: clamp(40px, 6vw, 80px);
}
.cta__copy {
  flex: 1 1 560px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.cta__title {
  font-size: clamp(32px, 4.2vw, 54px);
  letter-spacing: -0.02em;
  max-width: 14ch;
}
.cta__mail {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--invert-soft);
}
.cta__figure { flex: 0 0 320px; }
.cta__figure svg { width: 100%; height: auto; }

/* ---------- 6. Footer ---------- */
.site-footer { padding-block: var(--pad-y); }
.site-footer__top {
  display: flex;
  gap: clamp(40px, 6vw, 80px);
  margin-bottom: 48px;
}
.site-footer__brand {
  width: 420px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.site-footer__mark {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(26px, 3vw, 34px);
  letter-spacing: var(--track-md);
}
.site-footer__tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}
.site-footer__cols {
  flex-grow: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 40px;
}
.site-footer__cols > div { display: flex; flex-direction: column; gap: 14px; }
.site-footer__cols ul { display: flex; flex-direction: column; gap: 14px; }
.col__head {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}
.site-footer__cols a { font-size: 14px; }
.site-footer__cols a:hover { color: var(--muted); }
.col__plain li { font-size: 14px; color: var(--ink-soft); }

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 24px;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: var(--track-xs);
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- 7. Movimiento ---------- */
/* Un solo momento orquestado: la órbita gira lentísimo y la
   trayectoria de vuelo se dibuja al entrar en pantalla. */
.orbit__rings {
  transform-origin: center;
  animation: drift 120s linear infinite;
}
@keyframes drift { to { transform: rotate(360deg); } }

[data-draw] {
  stroke-dasharray: 560;
  stroke-dashoffset: 560;
}
[data-draw].is-drawn {
  animation: draw 1400ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
@keyframes draw { to { stroke-dashoffset: 0; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .orbit__rings { animation: none; }
  [data-draw] { stroke-dasharray: none; stroke-dashoffset: 0; animation: none; }
  *, *::before, *::after { transition-duration: 1ms !important; }
}

/* ---------- 8. Responsive ---------- */
@media (max-width: 1100px) {
  .blocks { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 40px 32px; }
  .section__head { flex-direction: column; align-items: flex-start; gap: 24px; }
  .section__note { width: 100%; max-width: 52ch; }
  .partners__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .nav-toggle { display: flex; }

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px var(--gutter) 28px;
    background: var(--paper);
    border-bottom: 1px solid var(--hairline);
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__link {
    display: block;
    padding: 18px 0;
    border-bottom: 1px solid var(--hairline);
  }
  .nav__cta { margin-top: 20px; }

  .hero__inner { flex-direction: column; align-items: flex-start; min-height: 0; }
  .hero__title { max-width: 18ch; }
  .hero__figure { width: 100%; flex-basis: auto; order: -1; }
  .orbit { max-width: 400px; }

  .platform { flex-direction: column; align-items: flex-start; }
  .platform__figure { width: 100%; flex-basis: auto; }

  .cta__inner { flex-direction: column; align-items: flex-start; }
  .cta__figure { flex-basis: auto; width: 240px; align-self: flex-end; }

  .site-footer__top { flex-direction: column; }
  .site-footer__brand { width: 100%; }
}

@media (max-width: 620px) {
  .wordmark__rule, .wordmark__sub { display: none; }
  .site-header__tools { gap: 8px; }

  .blocks { grid-template-columns: minmax(0, 1fr); }
  .partners__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-footer__cols { grid-template-columns: minmax(0, 1fr); gap: 32px; }

  .specs__row { flex-direction: column; gap: 8px; }
  .specs dt { width: auto; }

  .actions { gap: 12px; }
  .btn { width: 100%; }
  .actions--invert { align-items: flex-start; flex-direction: column; }

  .strip__inner { justify-content: flex-start; }
  .strip__inner span + span::before { display: none; }
  .strip__inner span::after {
    content: "";
    display: inline-block;
    width: 1px;
    height: 10px;
    margin-left: 14px;
    vertical-align: middle;
    background: var(--hairline);
  }
  .strip__inner span:last-child::after { display: none; }
}