/* =============================================================================
   Arcade Orbital · base transversal
   Tokens, tipografía, fondo espacial y componentes compartidos.
   Especificación: docs/03-SISTEMA-DE-DISENO.md
   ========================================================================== */

@font-face {
  font-family: 'Orbitron';
  src: url('../fonts/orbitron-var.woff2') format('woff2');
  font-weight: 500 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Rajdhani';
  src: url('../fonts/rajdhani-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Rajdhani';
  src: url('../fonts/rajdhani-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Rajdhani';
  src: url('../fonts/rajdhani-600.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Rajdhani';
  src: url('../fonts/rajdhani-700.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --c-void: #05060f;
  --c-abyss: #070b1a;
  --c-space: #0a1024;
  --c-panel: #0c1530;
  --c-panel-raised: #111d3d;
  --c-line: rgba(120, 170, 255, 0.16);
  --c-line-strong: rgba(120, 190, 255, 0.34);
  --c-text: #eaf5ff;
  --c-muted: #9bb0cd;
  --c-dim: #63789a;
  --c-cyan: #3de8ff;
  --c-magenta: #ff3d9a;
  --c-amber: #ffc857;
  --c-lime: #a6ff6a;
  --c-violet: #9d7bff;
  --c-red: #ff5d6c;

  --font-display: 'Orbitron', 'Bahnschrift', 'Arial Black', sans-serif;
  --font-ui: 'Rajdhani', 'Bahnschrift', 'Trebuchet MS', sans-serif;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  --cabinet-w: 540px;
  --rail-w: 160px;
  --page-pad: 24px;
  --header-h: 64px;

  color-scheme: dark;
  accent-color: var(--c-cyan);
}

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

[hidden] {
  display: none !important;
}

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

body {
  margin: 0;
  min-height: 100dvh;
  background-color: var(--c-void);
  background-image:
    radial-gradient(ellipse 70% 50% at 12% -10%, rgba(61, 232, 255, 0.09), transparent 62%),
    radial-gradient(ellipse 55% 40% at 92% 4%, rgba(255, 61, 154, 0.08), transparent 60%),
    radial-gradient(ellipse 90% 55% at 50% 112%, rgba(157, 123, 255, 0.09), transparent 62%),
    linear-gradient(180deg, #05060f 0%, #060a17 55%, #05060f 100%);
  color: var(--c-text);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.5;
  overflow-x: hidden;
}

/* Campo de estrellas procedimental, sin imágenes. */
body::before {
  content: '';
  position: fixed;
  inset: -20%;
  z-index: -2;
  pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 12% 22%, rgba(255, 255, 255, 0.6), transparent 100%),
    radial-gradient(1px 1px at 68% 8%, rgba(120, 220, 255, 0.5), transparent 100%),
    radial-gradient(1px 1px at 34% 71%, rgba(255, 255, 255, 0.35), transparent 100%),
    radial-gradient(1.5px 1.5px at 82% 56%, rgba(157, 123, 255, 0.55), transparent 100%),
    radial-gradient(1px 1px at 48% 41%, rgba(255, 255, 255, 0.3), transparent 100%),
    radial-gradient(1px 1px at 92% 84%, rgba(61, 232, 255, 0.4), transparent 100%),
    radial-gradient(1px 1px at 6% 91%, rgba(255, 255, 255, 0.35), transparent 100%);
  background-size: 420px 420px;
  opacity: 0.55;
  animation: drift 180s linear infinite;
}

/* Retícula orbital muy tenue. */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(120, 190, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 190, 255, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse at 50% 45%, black 20%, transparent 78%);
}

@keyframes drift {
  to {
    transform: translate3d(-420px, 420px, 0);
  }
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: 0.035em;
}

a {
  color: var(--c-cyan);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: 0;
}

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

::selection {
  background: rgba(61, 232, 255, 0.3);
  color: #fff;
}

/* --------------------------------------------------------------- utilidades */
.visually-hidden {
  position: absolute !important;
  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: -60px;
  left: 16px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--c-cyan);
  color: #04121a;
  font-weight: 700;
  border-radius: var(--radius-sm);
  transition: top var(--ease) 150ms;
}

.skip-link:focus {
  top: 12px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.eyebrow::before {
  content: '';
  width: 22px;
  height: 1px;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}

.mono {
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

/* ------------------------------------------------------------------ botones */
.btn {
  --btn-fg: var(--c-text);
  --btn-border: var(--c-line-strong);
  --btn-bg: rgba(10, 18, 40, 0.55);
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 44px;
  padding: 10px 20px;
  border: 1px solid var(--btn-border);
  border-radius: var(--radius-sm);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  line-height: 1;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform var(--ease) 160ms,
    border-color var(--ease) 160ms,
    box-shadow var(--ease) 160ms,
    background-color var(--ease) 160ms;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: rgba(61, 232, 255, 0.7);
  box-shadow: 0 0 22px rgba(61, 232, 255, 0.16);
}

.btn:active {
  transform: translateY(0);
}

.btn[disabled],
.btn[aria-disabled='true'] {
  opacity: 0.45;
  pointer-events: none;
}

.btn--primary {
  --btn-fg: #031018;
  --btn-border: transparent;
  --btn-bg: linear-gradient(120deg, #3de8ff 0%, #7fe9ff 45%, #9d7bff 100%);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.1) inset,
    0 10px 34px rgba(61, 232, 255, 0.22);
}

.btn--primary::after {
  content: '';
  position: absolute;
  inset: 2px;
  border: 1px solid rgba(4, 16, 24, 0.22);
  border-radius: 3px;
  pointer-events: none;
}

.btn--primary:hover {
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.18) inset,
    0 12px 40px rgba(61, 232, 255, 0.34);
}

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--c-muted);
  --btn-border: var(--c-line);
}

.btn--ghost:hover {
  --btn-fg: var(--c-text);
}

.btn--danger {
  --btn-fg: #ffd8dc;
  --btn-border: rgba(255, 93, 108, 0.45);
  --btn-bg: rgba(255, 93, 108, 0.1);
}

.btn--sm {
  min-height: 36px;
  padding: 8px 13px;
  font-size: 11px;
  letter-spacing: 0.13em;
}

.btn--wide {
  width: 100%;
}

.btn--icon {
  width: 42px;
  min-height: 42px;
  padding: 0;
  font-size: 15px;
}

/* --------------------------------------------------------------- estructura */
.site-header {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(1280px, 100%);
  min-height: var(--header-h);
  margin: 0 auto;
  padding: 14px var(--page-pad);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--c-text);
  text-decoration: none;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(61, 232, 255, 0.5);
  border-radius: 50%;
  box-shadow:
    0 0 18px rgba(61, 232, 255, 0.22),
    0 0 0 4px rgba(61, 232, 255, 0.04) inset;
  position: relative;
}

.brand__mark::before {
  content: '';
  position: absolute;
  inset: 7px;
  border: 1px solid var(--c-cyan);
  border-radius: 50%;
}

.brand__mark::after {
  content: '';
  position: absolute;
  width: 42px;
  height: 12px;
  border: 1px solid rgba(255, 61, 154, 0.65);
  border-radius: 50%;
  transform: rotate(-24deg);
}

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1;
}

.brand__name {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.2em;
}

.brand__sub {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--c-dim);
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  padding: 8px 12px;
  color: var(--c-muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-decoration: none;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition:
    color var(--ease) 160ms,
    background-color var(--ease) 160ms;
}

.site-nav a:hover {
  color: var(--c-text);
  background: rgba(120, 190, 255, 0.07);
}

.site-footer {
  position: relative;
  z-index: 2;
  width: min(1280px, 100%);
  margin: 0 auto;
  padding: 32px var(--page-pad) 40px;
  border-top: 1px solid var(--c-line);
  color: var(--c-dim);
  font-size: 12px;
}

.site-footer__grid {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.site-footer__brand {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.site-footer__brand strong {
  color: var(--c-muted);
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.2em;
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.site-footer__links a {
  color: var(--c-dim);
  text-decoration: none;
}

.site-footer__links a:hover {
  color: var(--c-cyan);
}

/* ------------------------------------------------------------- publicidad */
.ad-unit {
  position: relative;
  width: var(--ad-w, 300px);
  height: var(--ad-h, 250px);
  overflow: hidden;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  background: rgba(8, 14, 30, 0.55);
}

.ad-unit img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ad-unit--adsense {
  background: rgba(8, 14, 30, 0.35);
}

.ad-unit .adsbygoogle {
  width: var(--ad-w) !important;
  height: var(--ad-h) !important;
}

.ad-label {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  padding: 3px 6px;
  background: rgba(5, 6, 15, 0.72);
  color: var(--c-dim);
  font-family: var(--font-ui);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  pointer-events: none;
}

/* -------------------------------------------------------------- consentimiento */
.consent {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 120;
  width: min(560px, calc(100vw - 32px));
  padding: 16px 18px;
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius-md);
  background: rgba(8, 14, 32, 0.97);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.55);
  font-size: 13px;
  color: var(--c-muted);
}

.consent[hidden] {
  display: none;
}

.consent strong {
  color: var(--c-text);
}

.consent p {
  margin-bottom: 12px;
}

.consent__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

/* ---------------------------------------------------------------- animaciones */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }

  body::before {
    animation: none;
  }
}