/* ==========================================================================
   seguridad — hoja de estilo del sitio
   Dirección: selva de noche · piedra caliza · latón
   Sin dependencias, sin JavaScript. Toda la atmósfera es CSS.
   ========================================================================== */

:root {
  /* --- tinta --- */
  --ink:        #080c09;
  --ink-deep:   #050807;
  --moss:       #1b271e;
  --moss-lit:   #29392c;

  /* --- texto --- */
  --bone:       #efe9dc;
  --sage:       #93a798;
  --sage-dim:   #68796d;

  /* --- acentos --- */
  --brass:      #c9a667;
  --brass-dim:  #8d7444;
  --jade:       #57a877;

  /* --- tipografía --- */
  --display: "Fraunces", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --body:    "Archivo", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono:    "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* --- métrica --- */
  --gut:  clamp(1.25rem, 5vw, 5.5rem);
  --rule: 1px solid var(--moss);
}

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

main { flex: 1 0 auto; }

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

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--ink);
  color: var(--sage);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* --- atmósfera: dos halos y un degradado de fondo ------------------------ */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(1100px 720px at 88% -10%, rgba(201, 166, 103, .11), transparent 62%),
    radial-gradient(900px 900px at 2% 108%,   rgba(87, 168, 119, .10), transparent 64%),
    linear-gradient(178deg, var(--ink) 0%, var(--ink-deep) 100%);
}

/* --- grano: turbulencia SVG en overlay ---------------------------------- */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .085;
  mix-blend-mode: soft-light;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* --- retícula de hilos verticales --------------------------------------- */
.grid-lines {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .5;
  background-image: linear-gradient(90deg, var(--moss) 1px, transparent 1px);
  background-size: calc(100% / 5) 100%;
}

/* --- utilidades --------------------------------------------------------- */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 10;
  padding: .7rem 1.1rem;
  background: var(--moss);
  color: var(--bone);
  font-family: var(--mono);
  font-size: .75rem;
  text-decoration: none;
}
.skip:focus { left: .75rem; top: .75rem; }

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

a {
  color: var(--bone);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--brass-dim);
  text-underline-offset: 4px;
  transition: color .25s ease, text-decoration-color .25s ease;
}
a:hover { color: var(--brass); text-decoration-color: var(--brass); }

code {
  font-family: var(--mono);
  font-size: .86em;
  color: var(--brass);
  background: rgba(201, 166, 103, .075);
  border: 1px solid rgba(201, 166, 103, .16);
  border-radius: 3px;
  padding: .12em .3em;
  white-space: nowrap;
}

.eyebrow {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--brass-dim);
  margin: 0;
}

/* ==========================================================================
   barra superior
   ========================================================================== */
.topbar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.35rem var(--gut);
  border-bottom: var(--rule);
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--sage-dim);
}
.topbar__mark {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  color: var(--bone);
  letter-spacing: .2em;
}
.topbar__mark svg { width: 18px; height: 18px; display: block; }
.topbar__repo {
  color: var(--sage-dim);
  text-transform: none;
  letter-spacing: .06em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ==========================================================================
   portada
   ========================================================================== */
.hero {
  position: relative;
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 0 clamp(1.25rem, 3.5vw, 2.75rem);
  padding: clamp(3.5rem, 13vh, 9rem) var(--gut) clamp(3.5rem, 11vh, 7.5rem);
  overflow: hidden;
}

/* raíl lateral con etiqueta vertical y marcas de regla */
.rail {
  position: relative;
  border-left: var(--rule);
  padding-left: .85rem;
}
.rail::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: .55rem;
  height: 42%;
  background-image: linear-gradient(180deg, var(--moss-lit) 1px, transparent 1px);
  background-size: 100% 11px;
}
.rail span {
  writing-mode: vertical-rl;
  font-family: var(--mono);
  font-size: .63rem;
  letter-spacing: .32em;
  text-transform: uppercase;
  color: var(--brass-dim);
  white-space: nowrap;
}

.hero__body { position: relative; z-index: 1; }

.hero h1 {
  margin: 1.5rem 0 0;
  font-family: var(--display);
  font-weight: 400;
  font-variation-settings: "opsz" 144, "SOFT" 60, "WONK" 1;
  font-size: clamp(3.4rem, 14.5vw, 10.5rem);
  line-height: .84;
  letter-spacing: -.038em;
  color: var(--bone);
  /* la caja de línea (.84) recorta el descendente de la «g»: le damos aire */
  padding-bottom: .09em;
}
.hero h1 .stop { color: var(--brass); }

.lead {
  margin: 2.1rem 0 0;
  max-width: 47ch;
  font-size: clamp(1rem, 1.15vw + .78rem, 1.2rem);
  line-height: 1.62;
  color: var(--sage);
  text-wrap: pretty;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  margin-top: 2.35rem;
  padding: .5rem 1rem;
  border: 1px solid var(--moss-lit);
  border-radius: 999px;
  background: rgba(87, 168, 119, .06);
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--bone);
}
.status .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--jade);
  animation: pulse 2.8s ease-out infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(87, 168, 119, .5); }
  70%  { box-shadow: 0 0 0 10px rgba(87, 168, 119, 0); }
  100% { box-shadow: 0 0 0 0 rgba(87, 168, 119, 0); }
}

/* fronda decorativa */
.frond {
  position: absolute;
  right: -5%;
  top: 50%;
  translate: 0 -50%;
  height: min(84%, 620px);
  width: auto;
  color: var(--brass);
  opacity: .15;
  pointer-events: none;
  transform-origin: 50% 100%;
  animation: sway 16s ease-in-out infinite;
}
@keyframes sway {
  0%, 100% { rotate: -1.4deg; }
  50%      { rotate: 1.4deg; }
}

@media (max-width: 760px) {
  .frond { opacity: .1; right: -18%; }
}

/* ==========================================================================
   secciones
   ========================================================================== */
.sec {
  position: relative;
  padding: clamp(3rem, 7.5vh, 5.5rem) var(--gut);
  border-top: var(--rule);
}
.sec__head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: clamp(1.6rem, 4vh, 2.6rem);
}
.sec__num {
  flex: none;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .2em;
  color: var(--brass-dim);
}
.sec__title {
  margin: 0;
  font-family: var(--display);
  font-weight: 400;
  font-variation-settings: "opsz" 72, "SOFT" 40, "WONK" 0;
  font-size: clamp(1.45rem, 3.4vw, 2.2rem);
  line-height: 1.1;
  letter-spacing: -.018em;
  color: var(--bone);
}
.sec__note {
  margin: -.6rem 0 clamp(1.6rem, 4vh, 2.4rem);
  max-width: 60ch;
  font-size: .95rem;
  color: var(--sage);
  text-wrap: pretty;
}

/* --- lista de cabeceras ------------------------------------------------- */
.hdrs {
  margin: 0;
  border-top: var(--rule);
}
.hdr {
  display: grid;
  grid-template-columns: minmax(0, 17rem) minmax(0, 1fr);
  gap: .35rem 2.25rem;
  align-items: baseline;
  padding: 1.05rem 0;
  border-bottom: var(--rule);
}
.hdr dt {
  font-family: var(--mono);
  font-size: .78rem;
  line-height: 1.5;
  color: var(--brass);
  word-break: break-word;
}
.hdr dd {
  margin: 0;
  font-size: .91rem;
  line-height: 1.55;
  color: var(--sage);
  text-wrap: pretty;
}
@media (max-width: 640px) {
  .hdr { grid-template-columns: 1fr; }
}

/* --- tarjetas de pasos -------------------------------------------------- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: clamp(1rem, 2vw, 1.5rem);
}
.step {
  position: relative;
  padding: 1.55rem 1.5rem 1.7rem;
  border: 1px solid var(--moss);
  background: linear-gradient(180deg, rgba(239, 233, 220, .022), transparent 70%);
  transition: border-color .35s ease, translate .35s ease, background .35s ease;
}
.step:hover {
  border-color: var(--brass-dim);
  background: linear-gradient(180deg, rgba(201, 166, 103, .05), transparent 70%);
}
.step__n {
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .22em;
  color: var(--brass-dim);
}
.step h3 {
  margin: .7rem 0 .55rem;
  font-family: var(--display);
  font-weight: 500;
  font-variation-settings: "opsz" 40, "SOFT" 30, "WONK" 0;
  font-size: 1.2rem;
  line-height: 1.2;
  letter-spacing: -.012em;
  color: var(--bone);
}
.step p {
  margin: 0;
  font-size: .89rem;
  line-height: 1.62;
  color: var(--sage);
  text-wrap: pretty;
}

/* desfase escalonado: rompe la retícula en pantallas anchas */
@media (min-width: 900px) {
  .steps { margin-bottom: 3.5rem; }
  .step:nth-child(2) { translate: 0 1.75rem; }
  .step:nth-child(3) { translate: 0 3.5rem; }
  .step:hover              { translate: 0 -5px; }
  .step:nth-child(2):hover { translate: 0 calc(1.75rem - 5px); }
  .step:nth-child(3):hover { translate: 0 calc(3.5rem - 5px); }
}

/* ==========================================================================
   pie
   ========================================================================== */
.foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: .55rem 1.5rem;
  padding: 1.9rem var(--gut) 3rem;
  border-top: var(--rule);
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--sage-dim);
}

/* ==========================================================================
   página 404
   ========================================================================== */
.gone {
  display: grid;
  place-content: center;
  gap: 1.25rem;
  padding: 4rem var(--gut);
  text-align: center;
  justify-items: center;
}
.gone h1 {
  margin: 0;
  font-family: var(--display);
  font-weight: 400;
  font-variation-settings: "opsz" 144, "SOFT" 70, "WONK" 1;
  font-size: clamp(5rem, 22vw, 14rem);
  line-height: .8;
  letter-spacing: -.045em;
  color: var(--bone);
}
.gone p { margin: 0; max-width: 38ch; color: var(--sage); }
.gone .back {
  margin-top: .75rem;
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .2em;
  text-transform: uppercase;
}

/* ==========================================================================
   entrada escalonada
   ========================================================================== */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    animation: rise .9s cubic-bezier(.2, .7, .2, 1) both;
  }
  @keyframes rise {
    from { opacity: 0; translate: 0 16px; }
    to   { opacity: 1; translate: 0 0; }
  }
  .d1 { animation-delay: .04s; }
  .d2 { animation-delay: .14s; }
  .d3 { animation-delay: .26s; }
  .d4 { animation-delay: .38s; }
  .d5 { animation-delay: .50s; }
  .d6 { animation-delay: .62s; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}

/* referencia a una ruta de interfaz ajena (menús de Netlify, etc.) */
.ui {
  color: var(--bone);
  font-weight: 500;
}