/* ============================================================
   VIDREA — Base: reset, tipografía, lienzo, cabecera y pie
   ============================================================ */

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

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* Las piezas decorativas que sobresalen no deben generar scroll lateral */
  overflow-x: clip;
}

body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--text-2);
  background-color: var(--bg-canvas);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: none; }

ul, ol { list-style: none; padding: 0; }

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

/* ------------------------------------------------------------
   Foco visible: siempre, y con buen contraste en ambos temas
   ------------------------------------------------------------ */
:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

.skip-link {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  z-index: var(--z-skip);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-pill);
  background: var(--accent);
  color: var(--accent-contrast);
  font-weight: var(--fw-semibold);
  transform: translateY(-200%);
  transition: transform var(--dur-base) var(--ease-out);
}
.skip-link:focus-visible { transform: translateY(0); }

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

/* ------------------------------------------------------------
   Lienzo: malla de color detrás de todo el cristal
   ------------------------------------------------------------ */
.canvas-bg {
  position: fixed;
  inset: 0;
  z-index: var(--z-bg);
  pointer-events: none;
  background-color: var(--bg-canvas);
  /* Cada mancha se apaga hacia su propio color con alfa 0 (--mesh-N-fin),
     nunca hacia "transparent": eso interpola hacia negro transparente y
     deja un halo sucio, muy visible en el tema oscuro. */
  background-image:
    radial-gradient(38rem 30rem at 12% 8%, var(--mesh-1), var(--mesh-1-fin) 68%),
    radial-gradient(34rem 28rem at 88% 14%, var(--mesh-2), var(--mesh-2-fin) 66%),
    radial-gradient(40rem 32rem at 78% 88%, var(--mesh-3), var(--mesh-3-fin) 68%),
    radial-gradient(30rem 26rem at 22% 82%, var(--mesh-4), var(--mesh-4-fin) 66%),
    /* Mancha central tenue: sin ella, en oscuro el centro de la pantalla
       se quedaba completamente negro y el cristal no tenía nada que
       transparentar. */
    radial-gradient(46rem 40rem at 50% 46%, var(--mesh-1), var(--mesh-1-fin) 72%),
    linear-gradient(180deg, var(--bg-canvas) 0%, var(--bg-deep) 100%);
}

/* Grano finísimo (SVG en data URI) para que el degradado no "bandee" */
.canvas-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Orbes que flotan lentamente (se apagan con prefers-reduced-motion) */
.canvas-orb {
  position: fixed;
  z-index: var(--z-bg);
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.6;
  pointer-events: none;
  animation: orb-drift var(--dur-ambient) var(--ease-in-out) infinite alternate;
}
.canvas-orb--1 {
  width: 26rem; height: 26rem;
  top: -6rem; left: -4rem;
  background: var(--mesh-1);
}
.canvas-orb--2 {
  width: 22rem; height: 22rem;
  top: 30%; right: -6rem;
  background: var(--mesh-2);
  animation-duration: calc(var(--dur-ambient) * 1.4);
  animation-direction: alternate-reverse;
}

@keyframes orb-drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(2.5rem, 3rem, 0) scale(1.12); }
}

/* ------------------------------------------------------------
   Tipografía jerárquica
   ------------------------------------------------------------ */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--text-1);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-snug);
  letter-spacing: var(--tracking-snug);
  text-wrap: balance;
}

h1 { font-size: var(--fs-hero); line-height: var(--lh-tight); letter-spacing: var(--tracking-tight); font-weight: var(--fw-bold); }
h2 { font-size: var(--fs-3xl); letter-spacing: var(--tracking-tight); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }

p { text-wrap: pretty; }

.overline {
  display: inline-block;
  font-size: var(--fs-overline);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--accent);
}

.lead {
  font-size: var(--fs-lg);
  line-height: var(--lh-loose);
  color: var(--text-2);
  max-width: var(--maxw-prose);
}

.text-gradient {
  background: linear-gradient(115deg, var(--text-1) 12%, var(--accent) 58%, var(--accent-2) 96%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ------------------------------------------------------------
   Rejilla y contenedores
   ------------------------------------------------------------ */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); position: relative; z-index: var(--z-content); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}
.section-head p { max-width: 46ch; margin-top: var(--space-3); color: var(--text-2); }

/* ------------------------------------------------------------
   Cabecera flotante
   ------------------------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  padding-block: var(--space-4);
}
.site-header .wrap { display: block; }

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-2) var(--space-2) var(--space-2) var(--space-5);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: var(--fs-lg);
  letter-spacing: var(--tracking-tight);
  color: var(--text-1);
  flex: 0 0 auto;
}
.brand__mark { width: 2rem; height: 2rem; flex: 0 0 auto; }
.brand__name { line-height: 1; }
.brand__name span { color: var(--accent); }

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-inline: auto;
}
.nav__link {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-2);
  transition: color var(--dur-fast) var(--ease-out),
    background-color var(--dur-fast) var(--ease-out);
}
.nav__link:hover { color: var(--text-1); background-color: var(--accent-soft); }
.nav__link[aria-current="page"] {
  color: var(--text-1);
  font-weight: var(--fw-semibold);
  background-color: var(--accent-soft);
}

.nav__actions { display: flex; align-items: center; gap: var(--space-2); flex: 0 0 auto; }
.nav__actions .glass-button--icon { width: 2.5rem; height: 2.5rem; }
.nav__actions svg { width: 1.15rem; height: 1.15rem; }

/* Icono del tema: se muestra sol o luna según el tema activo */
.theme-toggle__moon { display: none; }
[data-theme="oscuro"] .theme-toggle__sun { display: none; }
[data-theme="oscuro"] .theme-toggle__moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="claro"]) .theme-toggle__sun { display: none; }
  :root:not([data-theme="claro"]) .theme-toggle__moon { display: block; }
}

.nav__toggle { display: none; }

/* Navegación móvil */
@media (max-width: 860px) {
  .nav { padding-left: var(--space-4); gap: var(--space-2); }
  .nav__toggle { display: inline-flex; order: 3; }
  /* El botón de la tienda se reduce a su icono: así la marca y las
     tres acciones caben en una sola fila incluso a 390 px */
  .nav__actions { margin-left: auto; }
  .nav__cta { width: 2.5rem; height: 2.5rem; padding: 0; }
  .nav__cta-texto {
    position: absolute; width: 1px; height: 1px;
    overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
  }
  .nav__links {
    order: 4;
    width: 100%;
    margin: 0;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
    padding: var(--space-3) var(--space-2) var(--space-2);
    display: none;
  }
  .nav__links.is-open { display: flex; }
  .nav__link { padding: var(--space-3) var(--space-4); font-size: var(--fs-base); }
  .nav { flex-wrap: wrap; border-radius: var(--radius-lg); }
}

/* ------------------------------------------------------------
   Pie de página
   ------------------------------------------------------------ */
.site-footer {
  position: relative;
  z-index: var(--z-content);
  padding-block: var(--space-9) var(--space-6);
}
.footer-panel {
  padding: clamp(1.75rem, 1rem + 3vw, 3.25rem);
  display: grid;
  grid-template-columns: minmax(15rem, 1.6fr) repeat(3, minmax(8rem, 1fr));
  gap: var(--space-8) var(--space-6);
}
.footer-brand p {
  margin-top: var(--space-4);
  color: var(--text-2);
  font-size: var(--fs-sm);
  max-width: 34ch;
}
.footer-col h3 {
  font-size: var(--fs-overline);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: var(--space-4);
}
.footer-col li + li { margin-top: var(--space-3); }
.footer-col a {
  font-size: var(--fs-sm);
  color: var(--text-2);
  transition: color var(--dur-fast) var(--ease-out);
}
.footer-col a:hover { color: var(--accent); text-decoration: underline; text-underline-offset: 4px; }

.footer-bottom {
  grid-column: 1 / -1;
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
  justify-content: space-between;
  font-size: var(--fs-sm);
  color: var(--text-3);
  border-top: 1px solid var(--glass-border);
}
.footer-pay { display: flex; gap: var(--space-2); align-items: center; }

@media (max-width: 860px) {
  .footer-panel { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 460px) {
  .footer-panel { grid-template-columns: 1fr; gap: var(--space-6); }
}

/* ------------------------------------------------------------
   Animaciones de entrada (sobrias)
   ------------------------------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  animation: reveal-up var(--dur-slow) var(--ease-out) forwards;
  animation-delay: var(--reveal-delay, 0ms);
}
@keyframes reveal-up {
  to { opacity: 1; transform: translateY(0); }
}

/* ------------------------------------------------------------
   Respeto por quien prefiere menos movimiento
   ------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
  .canvas-orb { animation: none; }
}