/* EGISTRO — egistro.xyz */
/* Sistema visual: negro absoluto + blanco + RGB primario calibrado */

:root {
  --bg: #181818;
  --ink: #FFFFFF;
  --gray: #888888;
  --gray-dim: #2a2a2a;
  --red: #E60000;
  --green: #00C800;
  --blue: #1E3CFF;

  --maxw: 680px;
  --s-1: 0.5rem;
  --s-2: 1rem;
  --s-3: 1.5rem;
  --s-4: 2rem;
  --s-6: 3rem;
  --s-8: 4rem;
  --s-12: 6rem;

  --font-display: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", "SF Mono", Menlo, Consolas, monospace;
}

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

html {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  background: var(--bg);
  overflow-x: hidden;
}

main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--s-4) var(--s-6);
}

/* Hero — Orbital mark (body-level, full viewport width) */

.hero {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin: 0 0 var(--s-3);
}

.orbital {
  width: 100%;
  max-width: 720px;
  height: auto;
  display: block;
}

/* Animation: orbital triángulos */

.orbital .orbiter {
  transform-box: view-box;
  transform-origin: 400px 400px;
  animation: egistro-orbit 60s linear infinite;
}

.orbital .spinner {
  transform-box: view-box;
  animation: egistro-spin 20s linear infinite reverse;
}

.orbital .spinner--1 {
  transform-origin: 400px 101px;
}

.orbital .spinner--2 {
  transform-origin: 140px 551px;
}

.orbital .spinner--3 {
  transform-origin: 660px 551px;
}

@keyframes egistro-orbit {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes egistro-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Ticker — scroll continuo bajo el hero */

.ticker {
  overflow: hidden;
  margin: 0;
  padding: var(--s-2) 0;
  border-top: 1px solid var(--gray-dim);
  border-bottom: 1px solid var(--gray-dim);
  white-space: nowrap;
  width: 100%;
}

.ticker-track {
  display: inline-flex;
  animation: egistro-ticker 30s linear infinite;
}

.ticker-content {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--gray);
  padding-right: var(--s-3);
  flex-shrink: 0;
}

@keyframes egistro-ticker {
  from { transform: translateX(0); }
  to { transform: translateX(-16.6667%); }
}

.brand {
  fill: var(--ink);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 92px;
  letter-spacing: -3px;
}

/* Definition block */

.block--definition {
  font-size: 1.0625rem;
  line-height: 1.75;
  padding: var(--s-3) 0;
  border-top: 1px solid var(--gray-dim);
  border-bottom: 1px solid var(--gray-dim);
  margin-bottom: var(--s-6);
  text-align: center;
}

.emphasis {
  font-weight: 600;
  letter-spacing: 0.08em;
}

/* Origin block */

.block--origin {
  margin-bottom: var(--s-6);
}

.origin-header {
  margin-bottom: var(--s-6);
}

.origin-header h2 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: var(--s-1);
}

.origin-header .subtitle {
  color: var(--gray);
  font-size: 0.9375rem;
  letter-spacing: 0.04em;
  font-style: normal;
}

.block--origin p {
  margin-bottom: var(--s-3);
}

.block--origin .quote {
  font-style: normal;
  color: var(--ink);
}

.attribution {
  text-align: right;
  margin-top: var(--s-4);
  margin-bottom: 0;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  letter-spacing: 0.08em;
  color: var(--gray);
}

/* Observation block — cita centrada + coordenadas */

.block--observation {
  margin: var(--s-3) 0 var(--s-6);
  padding: var(--s-4) 0 var(--s-3);
  border-top: 1px solid var(--gray-dim);
  text-align: center;
}

.observation {
  max-width: 540px;
  margin: 0 auto var(--s-4);
  font-size: 1.0625rem;
  line-height: 1.7;
  font-style: normal;
  color: var(--ink);
}

.coordinates {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  color: var(--gray);
}

/* Site footer — Substack izquierda, signal-rects centro, email derecha */

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-3) var(--s-4) var(--s-4);
  border-top: 1px solid var(--gray-dim);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-footer .footer-left {
  text-align: left;
}

.site-footer .footer-right {
  text-align: right;
}

.site-footer .footer-center {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: center;
}

.signal-rect {
  display: inline-block;
  width: 22px;
  height: 7px;
  animation: signal-blink 1.5s ease-in-out infinite;
}

.signal-rect--blue { background: #0000FF; animation-delay: 0s; }
.signal-rect--green { background: #00FF00; animation-delay: 0.5s; }
.signal-rect--red { background: #FF0000; animation-delay: 1s; }

@keyframes signal-blink {
  0%, 100% { opacity: 0.25; }
  50% { opacity: 1; }
}

/* Signals en mobile: entre coordenadas y línea del footer */

.signals-mobile {
  display: none;
}

.site-footer a {
  color: var(--gray);
  text-decoration: none;
  transition: color 0.15s ease;
}

.site-footer a:hover,
.site-footer a:focus {
  color: var(--ink);
  outline: none;
}

/* Responsive */

@media (max-width: 640px) {
  html {
    font-size: 16px;
  }

  main {
    padding: 0 var(--s-3) var(--s-4);
  }

  .hero {
    margin: 0 0 var(--s-3);
  }

  .brand {
    font-size: 110px;
    letter-spacing: -2px;
  }

  .origin-header h2 {
    font-size: 2rem;
  }

  .block--definition {
    margin-bottom: var(--s-4);
  }

  .block--origin {
    margin-bottom: var(--s-4);
  }

  /* Mobile: signal-rects pasan a la observación, fuera del footer */

  .signals-mobile {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: var(--s-4);
  }

  .site-footer .footer-center {
    display: none;
  }

  .site-footer {
    grid-template-columns: 1fr 1fr;
  }
}

/* Desktop scaling */

@media (min-width: 1024px) {
  .orbital {
    width: 100%;
    max-width: 690px;
  }

  .ticker-content {
    font-size: 0.9375rem;
    padding-right: var(--s-4);
  }

  /* Full-viewport borders en bloques estructurales */

  .block--definition,
  .block--observation {
    position: relative;
  }

  .block--definition {
    border-top: none;
    border-bottom: none;
  }

  .block--definition::before,
  .block--definition::after,
  .block--observation::before {
    content: "";
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 100vw;
    height: 1px;
    background: var(--gray-dim);
  }

  .block--definition::before { top: 0; }
  .block--definition::after { bottom: 0; }

  .block--observation {
    border-top: none;
  }

  .block--observation::before { top: 0; }

  /* Origin block: 2 columnas, ancho expandido */

  .block--origin {
    position: relative;
    width: min(1100px, calc(100vw - 4rem));
    left: 50%;
    transform: translateX(-50%);
    column-count: 2;
    column-gap: 3rem;
  }

  .origin-header,
  .attribution {
    column-span: all;
  }
}

@media (min-width: 1440px) {
  .ticker-content {
    font-size: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}

/* Selection */

::selection {
  background: var(--ink);
  color: var(--bg);
}