/* AFM Luna — sistema común de las tres páginas.
   Cada página define sus colores (tokens de tema) y este archivo pone tipografía, espaciado,
   cabecera, menú móvil, botones, revelado, galería y pie con los mismos tiempos y curvas. */

:root {
  --f-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --f-body: "Public Sans", "Segoe UI", system-ui, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;

  --fs-xs: 0.75rem;
  --fs-s: 0.875rem;
  --fs-base: 1.0625rem;
  --fs-lead: clamp(1.1rem, 1rem + 0.45vw, 1.28rem);
  --fs-h3: clamp(1.2rem, 1.05rem + 0.6vw, 1.5rem);
  --fs-h2: clamp(1.9rem, 1.35rem + 2.2vw, 3.1rem);
  --fs-h1: clamp(2.5rem, 1.5rem + 3.9vw, 4.75rem);

  --s-1: 4px; --s-2: 8px; --s-3: 12px; --s-4: 16px; --s-5: 24px; --s-6: 32px; --s-7: 48px; --s-8: 64px; --s-9: 96px;
  --section: clamp(64px, 8vw, 120px);
  --gutter: clamp(16px, 4vw, 48px);
  --max: 1200px;
  --header-h: 64px;

  --r-s: 8px; --r-m: 14px; --r-l: 22px;
  --shadow-1: 0 1px 2px rgb(10 20 40 / 0.06), 0 6px 18px rgb(10 20 40 / 0.06);
  --shadow-2: 0 2px 6px rgb(10 20 40 / 0.08), 0 22px 50px rgb(10 20 40 / 0.14);

  --ease: cubic-bezier(.22, .8, .2, 1);
  --t-ui: 200ms;
  --t-enter: 600ms;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; padding-block: env(safe-area-inset-top, 0px) env(safe-area-inset-bottom, 0px); }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--f-body); font-size: var(--fs-base); line-height: 1.6; -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; }
button { font: inherit; color: inherit; }
h1, h2, h3, p, figure, blockquote { margin: 0; }
h1, h2, h3 { font-family: var(--f-display); line-height: 1.04; text-wrap: balance; letter-spacing: -0.015em; }
p { text-wrap: pretty; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 4px; }
.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: absolute; left: 16px; top: -60px; z-index: 100; padding: 10px 14px; border-radius: 8px; background: var(--ink); color: var(--bg); font-weight: 600; text-decoration: none; transition: top var(--t-ui) var(--ease); }
.skip-link:focus { top: 10px; }
.wrap { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
section[id], [id].anchor { scroll-margin-top: calc(var(--header-h) + 20px); }

.kicker { font: 500 var(--fs-xs)/1.35 var(--f-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.lead { font-size: var(--fs-lead); color: var(--muted); max-width: 38rem; }
.section { padding-block: var(--section); }
.section-head { display: grid; gap: var(--s-3); max-width: 44rem; margin-bottom: clamp(32px, 4vw, 56px); }
.section-head h2 { font-size: var(--fs-h2); font-weight: 800; }
.section-head p { color: var(--muted); font-size: var(--fs-lead); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; padding: 0 22px;
  border-radius: 10px; border: 1.5px solid transparent; text-decoration: none; cursor: pointer;
  font: 600 0.97rem/1 var(--f-body); white-space: nowrap;
  transition: transform var(--t-ui) var(--ease), background-color var(--t-ui) var(--ease), border-color var(--t-ui) var(--ease), box-shadow var(--t-ui) var(--ease);
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-1); }
.btn:active { transform: translateY(0); }
.btn svg { width: 18px; height: 18px; flex: none; transition: transform var(--t-ui) var(--ease); }
.btn:hover svg.arrow, .btn:focus-visible svg.arrow { transform: translateX(4px); }
.btn-primary { background: var(--brand); color: var(--brand-ink); }
.btn-primary:hover { background: var(--brand-hover); }
.btn-secondary { border-color: currentColor; color: var(--ink); background: transparent; }
.btn-accent { background: var(--accent); color: var(--accent-ink); }
.on-deep .btn-secondary { color: var(--on-deep); }

.link-arrow { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; text-decoration: none; }
.link-arrow svg { width: 16px; height: 16px; transition: transform var(--t-ui) var(--ease); }
.link-arrow:hover svg { transform: translateX(3px); }
.link-arrow:hover span { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Cabecera ---------- */
.site-header {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50;
  background: var(--header-bg); color: var(--header-ink);
  backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--header-line);
  transition: box-shadow var(--t-ui) var(--ease);
}
.site-header.is-scrolled { box-shadow: 0 6px 24px rgb(0 0 0 / 0.08); }
.site-header .wrap { height: var(--header-h); display: flex; align-items: center; gap: var(--s-5); }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; margin-right: auto; flex: none; border-radius: 6px; }
.nav { display: flex; gap: 4px; }
.nav a {
  position: relative; padding: 8px 12px; border-radius: 8px; text-decoration: none;
  font-size: 0.94rem; font-weight: 500; color: var(--header-muted);
  transition: color var(--t-ui) var(--ease), background-color var(--t-ui) var(--ease);
}
.nav a:hover { color: var(--header-ink); background: var(--header-hover); }
.nav a[aria-current="true"] { color: var(--header-ink); }
.nav a[aria-current="true"]::after { content: ""; position: absolute; left: 12px; right: 12px; bottom: 2px; height: 2px; border-radius: 2px; background: var(--focus); }
.header-tools { display: flex; align-items: center; gap: var(--s-3); }
.lang { display: flex; border: 1px solid var(--header-line); border-radius: 999px; padding: 2px; }
.lang button {
  min-width: 36px; min-height: 32px; padding: 0 8px; border: 0; border-radius: 999px; background: none; cursor: pointer;
  font: 500 0.72rem/1 var(--f-mono); letter-spacing: 0.06em; color: var(--header-muted);
  transition: background-color var(--t-ui) var(--ease), color var(--t-ui) var(--ease);
}
.lang button:hover { color: var(--header-ink); }
.lang button[aria-pressed="true"] { background: var(--header-ink); color: var(--header-bg-solid); }
.country-switch {
  display: inline-flex; align-items: center; gap: 8px; min-height: 36px; padding: 0 12px; border-radius: 999px;
  border: 1px solid var(--header-line); text-decoration: none; font-size: 0.85rem; font-weight: 600; white-space: nowrap;
  transition: background-color var(--t-ui) var(--ease), border-color var(--t-ui) var(--ease);
}
.country-switch:hover { background: var(--header-hover); border-color: var(--header-muted); }
.country-switch svg { width: 15px; height: 15px; }
.menu-btn {
  display: none; width: 44px; height: 44px; border-radius: 10px; border: 1px solid var(--header-line); background: none; cursor: pointer;
  align-items: center; justify-content: center;
}
.menu-btn span, .menu-btn span::before, .menu-btn span::after { display: block; width: 18px; height: 2px; border-radius: 2px; background: currentColor; transition: transform var(--t-ui) var(--ease), opacity var(--t-ui) var(--ease); }
.menu-btn span { position: relative; }
.menu-btn span::before, .menu-btn span::after { content: ""; position: absolute; left: 0; }
.menu-btn span::before { top: -6px; } .menu-btn span::after { top: 6px; }
.menu-btn[aria-expanded="true"] span { background: transparent; }
.menu-btn[aria-expanded="true"] span::before { transform: translateY(6px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span::after { transform: translateY(-6px) rotate(-45deg); }

.mobile-menu {
  position: fixed; z-index: 49; left: 0; right: 0; top: calc(env(safe-area-inset-top, 0px) + var(--header-h));
  max-height: calc(100dvh - var(--header-h) - env(safe-area-inset-top, 0px)); overflow-y: auto;
  background: var(--header-bg-solid); color: var(--header-ink); border-bottom: 1px solid var(--header-line); box-shadow: var(--shadow-2);
  padding: var(--s-4) var(--gutter) calc(var(--s-6) + env(safe-area-inset-bottom, 0px));
  transform-origin: top; animation: menu-in 220ms var(--ease);
}
@keyframes menu-in { from { opacity: 0; transform: translateY(-8px); } }
.mobile-menu nav { display: grid; }
.mobile-menu nav a { display: flex; align-items: center; justify-content: space-between; padding: 14px 4px; border-bottom: 1px solid var(--header-line); text-decoration: none; font: 700 1.2rem/1.2 var(--f-display); }
.mobile-menu nav a[aria-current="true"] { color: var(--focus); }
.mobile-menu .menu-foot { display: grid; gap: var(--s-4); margin-top: var(--s-5); }
.mobile-menu .menu-foot .kicker { color: var(--header-muted); }
.mobile-menu .lang { justify-self: start; }
.mobile-menu .lang button { min-width: 48px; min-height: 40px; }
html.menu-open { overflow: hidden; }
@media (max-width: 1023px) {
  .site-header .nav { display: none; }
  .menu-btn { display: inline-flex; }
}
@media (max-width: 599px) {
  .header-tools .lang, .header-tools .country-switch { display: none; }
}

/* ---------- Revelado (solo con JS y sin movimiento reducido) ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); }
.js .reveal.is-in { opacity: 1; transform: none; transition: opacity var(--t-enter) var(--ease), transform var(--t-enter) var(--ease); transition-delay: var(--d, 0ms); }
.enter { animation: enter var(--t-enter) var(--ease) both; animation-delay: var(--d, 0ms); }
@keyframes enter { from { opacity: 0; transform: translateY(14px); } }

/* ---------- Galería y vista ampliada ---------- */
.lightbox { padding: 0; border: 0; background: transparent; max-width: 100vw; max-height: 100dvh; width: 100vw; height: 100dvh; color: #f3f6fa; }
.lightbox::backdrop { background: rgb(4 8 18 / 0.9); backdrop-filter: blur(4px); }
.lightbox[open] { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; animation: fade 220ms var(--ease); }
@keyframes fade { from { opacity: 0; } }
.lb-top { display: flex; align-items: center; justify-content: space-between; padding: 14px var(--gutter); font: 500 var(--fs-s) var(--f-mono); letter-spacing: 0.06em; }
.lb-stage { position: relative; display: grid; place-items: center; padding: 0 var(--gutter); min-height: 0; touch-action: pan-y; }
.lb-stage img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; border-radius: 6px; box-shadow: 0 30px 80px rgb(0 0 0 / 0.5); user-select: none; -webkit-user-drag: none; }
.lb-cap { padding: 14px var(--gutter) calc(18px + env(safe-area-inset-bottom, 0px)); text-align: center; color: #c7d2df; font-size: var(--fs-s); }
.lb-btn { width: 48px; height: 48px; border-radius: 999px; border: 1px solid rgb(255 255 255 / 0.25); background: rgb(255 255 255 / 0.08); color: #fff; cursor: pointer; display: grid; place-items: center; transition: background-color var(--t-ui) var(--ease); }
.lb-btn:hover { background: rgb(255 255 255 / 0.18); }
.lb-btn svg { width: 20px; height: 20px; }
.lb-prev, .lb-next { position: absolute; top: 50%; transform: translateY(-50%); }
.lb-prev { left: max(8px, calc(var(--gutter) - 8px)); } .lb-next { right: max(8px, calc(var(--gutter) - 8px)); }
@media (max-width: 640px) { .lb-prev, .lb-next { top: auto; bottom: -58px; transform: none; } .lb-prev { left: calc(50% - 60px); } .lb-next { right: calc(50% - 60px); } .lb-cap { padding-top: 70px; } }

/* ---------- Contacto común ---------- */
.copy-btn {
  display: inline-flex; align-items: center; gap: 6px; min-height: 32px; padding: 0 10px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--line); background: transparent; color: var(--muted);
  font: 500 0.7rem/1 var(--f-mono); letter-spacing: 0.08em; text-transform: uppercase;
  transition: color var(--t-ui) var(--ease), border-color var(--t-ui) var(--ease), background-color var(--t-ui) var(--ease);
}
.copy-btn:hover { color: var(--ink); border-color: var(--ink); }
.copy-btn svg { width: 13px; height: 13px; }
.copy-btn.is-done { color: var(--ok); border-color: var(--ok); }
.contact-link { font-family: var(--f-display); font-weight: 700; text-decoration: none; overflow-wrap: anywhere; background-image: linear-gradient(currentColor, currentColor); background-size: 0 2px; background-position: 0 100%; background-repeat: no-repeat; transition: background-size var(--t-ui) var(--ease); }
.contact-link:hover { background-size: 100% 2px; }

/* ---------- Pie ---------- */
.site-footer { background: var(--deep); color: var(--on-deep); padding-block: var(--s-8) var(--s-6); }
.site-footer .foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--s-6); }
.site-footer .foot-brand p { color: var(--on-deep-muted); max-width: 22rem; margin-top: var(--s-3); font-size: var(--fs-s); }
.site-footer h2 { font: 500 var(--fs-xs)/1.3 var(--f-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--on-deep-muted); margin-bottom: var(--s-3); }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.site-footer a { text-decoration: none; color: var(--on-deep); }
.site-footer a:hover { text-decoration: underline; text-underline-offset: 3px; }
.site-footer .foot-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--s-3); margin-top: var(--s-7); padding-top: var(--s-5); border-top: 1px solid rgb(255 255 255 / 0.12); color: var(--on-deep-muted); font-size: var(--fs-s); }
@media (max-width: 760px) { .site-footer .foot-grid { grid-template-columns: 1fr 1fr; } .site-footer .foot-brand { grid-column: 1 / -1; } }

/* Transición entre páginas cuando el navegador la admite */
@view-transition { navigation: auto; }
::view-transition-old(root), ::view-transition-new(root) { animation-duration: 320ms; animation-timing-function: var(--ease); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 1ms !important; animation-iteration-count: 1 !important; transition-duration: 1ms !important; }
  .js .reveal { opacity: 1; transform: none; }
  @view-transition { navigation: none; }
}