/* ============================================================
   INTERNA EC · Base — reset, tipografía, utilidades
   ============================================================ */

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

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  color: var(--paper);
  background-color: var(--carbon-950);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
picture,
video,
canvas {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

ul,
ol {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-display);
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

::selection {
  background: var(--fire-500);
  color: var(--text-on-fire);
}

:focus-visible {
  outline: 2px solid var(--fire-400);
  outline-offset: 3px;
  border-radius: 2px;
}

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

/* ---------- Utilidades ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  font-weight: 500;
  letter-spacing: var(--tracking-mono-wide);
  text-transform: uppercase;
  color: var(--fire-500);
  position: relative;
}

/* Brasa corta antes del eyebrow: el fuego marca cada sección */
.eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--fire-500), var(--fire-300));
  box-shadow: 0 0 8px var(--fire-glow);
  flex: none;
}

.eyebrow--muted {
  color: var(--text-muted);
}

.eyebrow--muted::before {
  background: var(--line-dark);
  box-shadow: none;
}

.serif-line {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--copper);
}

.mono-label {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  font-weight: 500;
  letter-spacing: var(--tracking-mono-wide);
  text-transform: uppercase;
}

.accent {
  color: var(--copper);
  font-style: normal;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: var(--space-2);
  left: var(--space-2);
  z-index: var(--z-chat);
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  color: var(--text-on-fire);
  background: var(--fire-500);
  border-radius: var(--radius-btn);
  transform: translateY(-300%);
  transition: transform var(--dur-fast) var(--ease-out);
}

.skip-link:focus-visible {
  transform: translateY(0);
}

/* ---------- Secciones ---------- */
.section {
  padding-block: var(--section-pad);
  position: relative;
}

/* Separador de brasa: línea horizontal de fuego (# …às da sección) */
.ember-seam {
  display: block;
  height: 1px;
  background: var(--line-brasa);
  border: 0;
  margin: 0;
}

.ember-seam--wide {
  height: 2px;
  border-radius: 2px;
}

.section--alt {
  background: linear-gradient(180deg, var(--carbon-950) 0%, var(--carbon-900) 100%);
}

/* Aura ambiental brasa para secciones en carbon: calor en los cantos */
.section--ember {
  background:
    radial-gradient(42% 30% at 50% 0%, var(--fire-aura) 0%, transparent 60%),
    radial-gradient(38% 32% at 50% 100%, var(--copper-aura) 0%, transparent 65%),
    var(--carbon-950);
}

.section-head {
  display: grid;
  gap: var(--space-4);
  max-width: 44rem;
  margin-bottom: var(--space-10);
}

.section-head__title {
  font-size: var(--text-h2);
  font-weight: 800;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.section-head__lead {
  font-size: var(--text-lead);
  color: var(--text-secondary);
  max-width: 46ch;
}

/* ---------- Enlace con flecha (CTA ghost) ---------- */
.link-forward {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  font-weight: 500;
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  color: var(--paper);
  position: relative;
  padding: var(--space-2) 0;
}

.link-forward::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--fire-500);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-med) var(--ease-out);
}

.link-forward:hover::after,
.link-forward:focus-visible::after {
  transform: scaleX(1);
}

.link-forward:hover {
  color: var(--fire-400);
}

.link-forward__arrow {
  transition: transform var(--dur-med) var(--ease-out);
}

.link-forward:hover .link-forward__arrow,
.link-forward:focus-visible .link-forward__arrow {
  transform: translateX(4px);
}

/* ---------- Chip (etiquetas, estado de datos) ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  color: var(--text-secondary);
  background: var(--carbon-850);
}

.chip--pending {
  color: var(--warning);
  border-color: rgba(232, 176, 75, 0.35);
  background: rgba(232, 176, 75, 0.08);
}

.chip--ok {
  color: var(--success);
  border-color: rgba(111, 174, 117, 0.35);
  background: rgba(111, 174, 117, 0.08);
}

/* ---------- Divider editorial ---------- */
.rule-copper {
  width: 56px;
  height: 1px;
  background: var(--copper);
  border: 0;
}

/* ---------- Marca de agua tenue (llama + etiqueta) ---------- */
.flame-mark {
  position: absolute;
  z-index: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  pointer-events: none;
  user-select: none;
}

.flame-mark__svg {
  width: clamp(32px, 3.6vw, 52px);
  height: auto;
  color: var(--fire-400);
}

.flame-mark__svg path,
.flame-mark__svg circle {
  fill: currentColor;
  opacity: 0.9;
}

.flame-mark__label {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  font-weight: 500;
  letter-spacing: var(--tracking-mono-wide);
  text-transform: uppercase;
  color: var(--fire-400);
  opacity: 0.7;
  white-space: nowrap;
}

/* Posiciones reutilizables: las secciones eligen esquina */
.flame-mark--left-top {
  left: clamp(1rem, 3vw, 3rem);
  top: 6%;
}

.flame-mark--right-top {
  right: clamp(1rem, 3vw, 3rem);
  top: 2%;
}

.flame-mark--left-bottom {
  left: clamp(1rem, -2vw + 3rem, 3rem);
  bottom: 4%;
}

.flame-mark--right-bottom {
  right: clamp(1rem, -2vw + 3rem, 3rem);
  bottom: 4%;
}

/* ---------- Reveal on scroll (activado por motion.js)
   Gateado por html.js-ready: si JS falla o está deshabilitado,
   el contenido permanece visible. */
html.js-ready [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}

html.js-ready [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html.js-ready [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- Estado bloqueado de media ---------- */
@media (max-width: 1023.98px) {
  .container {
    padding-inline: 24px;
  }
}

@media (max-width: 767.98px) {
  .container {
    padding-inline: 20px;
  }

  .section {
    padding-block: var(--space-12);
  }

  .section-head {
    margin-bottom: var(--space-8);
  }
}