/* ==========================================================================
   BASE — reset, tipografía, accesibilidad, botones y enlaces
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 4.5rem;
  scrollbar-color: var(--color-steel) var(--color-paper-deep);
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  text-rendering: optimizelegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

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

img {
  height: auto;
}

h1,
h2,
h3,
h4,
p,
figure,
blockquote,
ul,
ol {
  margin: 0;
}

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

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

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

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.012em;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

::selection {
  background: var(--color-gold-soft);
  color: var(--color-on-gold);
}

/* --- Accesibilidad -------------------------------------------------------- */

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

/* Sobre fondos oscuros el anillo pasa a latón claro para mantener el contraste */
.agenda :focus-visible,
.cta :focus-visible,
.site-footer :focus-visible {
  outline-color: var(--color-gold-soft);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 100;
  padding: 0.65rem 1rem;
  background: var(--color-navy);
  color: var(--color-white);
  font: 600 var(--text-sm) var(--font-ui);
  transform: translateY(-160%);
  transition: transform var(--duration-normal) var(--ease-out);
}

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

.container {
  width: min(100% - (var(--gutter) * 2), var(--container));
  margin-inline: auto;
}

/* --- Iconos --------------------------------------------------------------- */

.icon {
  width: 1em;
  height: 1em;
  flex: none;
  fill: none;
  stroke: currentcolor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon--fill {
  fill: currentcolor;
  stroke: none;
}

/* Disuasión de guardado: sin arrastrar la imagen ni menú de "guardar" al mantener pulsado en iOS
   (el bloqueo del clic derecho está en js/main.js) */
img,
video {
  -webkit-user-drag: none;
  -webkit-touch-callout: none;
}

/* --- Etiquetas y reglas editoriales --------------------------------------- */

.eyebrow {
  font: 500 var(--text-xs) / 1.3 var(--font-ui);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
}

.rule-label {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font: 500 var(--text-xs) / 1.3 var(--font-ui);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
}

.rule-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

/* --- Enlace con flecha ---------------------------------------------------- */

.link-arrow {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding-block: 0.35rem;
  font: 500 var(--text-sm) / 1.2 var(--font-ui);
  letter-spacing: 0.02em;
  color: var(--color-ink);
}

.link-arrow--caps {
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.link-arrow::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: currentcolor;
  transform-origin: left;
  transition: transform var(--duration-normal) var(--ease-out);
}

.link-arrow .icon {
  transition: transform var(--duration-normal) var(--ease-out);
}

/* --- Botones -------------------------------------------------------------- */

.btn {
  --btn-bg: var(--color-steel);
  --btn-fg: var(--color-white);
  --btn-fill: var(--color-navy);
  --btn-fill-fg: var(--color-white);
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  min-height: 2.75rem;
  padding: 0.75rem 1.4rem;
  overflow: hidden;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-bg);
  border-radius: var(--radius);
  font: 500 var(--text-sm) / 1.2 var(--font-ui);
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition:
    color var(--duration-normal) var(--ease-out),
    transform var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out);
}

/* Relleno que barre de izquierda a derecha al pasar el cursor */
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--btn-fill);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration-normal) var(--ease-out);
}

.btn .icon {
  font-size: 1.1em;
  transition: transform var(--duration-normal) var(--ease-out);
}

.btn--light {
  --btn-bg: var(--color-white);
  --btn-fg: var(--color-navy);
  --btn-fill: var(--color-gold);
  --btn-fill-fg: var(--color-on-gold);
}

.btn--gold {
  --btn-bg: var(--color-gold);
  --btn-fg: var(--color-on-gold);
  --btn-fill: var(--color-navy);
  --btn-fill-fg: var(--color-white);
}

.btn--sm {
  min-height: 2.4rem;
  padding: 0.55rem 1.1rem;
}

/* Botón de contorno: el relleno azul aparece al pasar el cursor */
.btn--outline {
  --btn-bg: transparent;
  --btn-fg: var(--color-navy);
  --btn-fill: var(--color-navy);
  --btn-fill-fg: var(--color-white);
  background: transparent;
  border-color: var(--color-navy);
}

/* Botón azul marino sólido: el relleno de latón aparece al pasar el cursor */
.btn--navy {
  --btn-bg: var(--color-navy);
  --btn-fg: var(--color-white);
  --btn-fill: var(--color-gold);
  --btn-fill-fg: var(--color-on-gold);
}

@media (hover: hover) {
  .btn:hover {
    color: var(--btn-fill-fg);
    box-shadow: 0 10px 20px -14px rgb(0 0 0 / 0.55);
    transform: translateY(-2px);
  }

  .btn:hover::before {
    transform: scaleX(1);
    transform-origin: left;
  }

  .btn:hover .icon {
    transform: translateX(5px);
  }

  .link-arrow:hover::after {
    transform: scaleX(0.35);
  }

  .link-arrow:hover .icon {
    transform: translateX(6px);
  }
}

.btn:active {
  transform: translateY(0) scale(0.97);
  box-shadow: none;
}

.btn:focus-visible::before {
  transform: scaleX(1);
}

.btn:focus-visible {
  color: var(--btn-fill-fg);
}

/* --- Revelado al hacer scroll -------------------------------------------- */

.js .reveal {
  opacity: 0;
  transform: translateY(1rem);
  transition:
    opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
  transition-delay: calc(min(var(--i, 0), 4) * 70ms);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* --- Movimiento reducido -------------------------------------------------- */

@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;
    transition-delay: 0ms !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}