/* =============================================================================
   NAV + DRAWER · Pill navigation + mobile drawer fancy con glassmorphism
   Recurso compartido entre TODAS las páginas. NO añadir reglas ajenas.
   Versión canónica tomada de index.html (drawer fancy con diamantes iridiscentes).
   ============================================================================= */

/* ========= Pill nav ========= */
nav.top {
  position: fixed; top: 16px; left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  display: flex; align-items: center; gap: 18px;
  padding: 10px 14px 10px 18px;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(14px);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: 0 4px 24px rgba(11,13,18,.06);
  max-width: calc(100vw - 32px);
}
nav.top .logo {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 800; letter-spacing: -.02em;
  font-size: 16px;
  padding-right: 14px;
  text-decoration: none;
  color: inherit;
  border-right: 1px solid var(--line);
}
nav.top .logo .mark {
  width: 26px; height: 26px;
  flex-shrink: 0;
  filter:
    drop-shadow(0 0 0.5px rgba(255,255,255,.7))
    drop-shadow(0 1px 4px rgba(30,200,255,.25))
    saturate(1.1);
  display: block;
}
nav.top .links {
  display: flex; gap: 4px; font-size: 14px;
}
nav.top .links a {
  color: var(--ink);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 999px;
  font-weight: 500;
  transition: background .2s;
}
nav.top .links a:hover { background: var(--bg-2); }
nav.top .links a.active { background: var(--bg-2); font-weight: 600; }
nav.top .right {
  display: flex; gap: 6px; align-items: center;
  margin-left: 8px; padding-left: 14px;
  border-left: 1px solid var(--line);
}
nav.top .signin {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--ink); color: #fff;
  padding: 11px 18px; border-radius: 999px;
  font-size: 14px; font-weight: 600; text-decoration: none;
  white-space: nowrap;
  flex-wrap: nowrap;
}

/* ========= HAMBURGUER BUTTON ========= */
.nav-burger {
  display: none;
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,.7);
  border: 1px solid var(--line);
  border-radius: 50%;
  position: relative;
  cursor: pointer;
  flex-shrink: 0;
  margin-left: 4px;
  padding: 0;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: background .2s, transform .15s;
  z-index: 9100;
}
.nav-burger:hover { background: rgba(255,255,255,.95); }
.nav-burger:active { transform: scale(.95); }
.nav-burger span {
  position: absolute;
  left: 12px; right: 12px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform .25s cubic-bezier(.2,.8,.2,1), opacity .2s, top .25s;
}
.nav-burger span:nth-child(1) { top: 15px; }
.nav-burger span:nth-child(2) { top: 21px; }
.nav-burger span:nth-child(3) { top: 27px; }
.nav-burger.active span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.nav-burger.active span:nth-child(2) { opacity: 0; }
.nav-burger.active span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* ========= DRAWER · glassmorphism + diamantes iridiscentes ========= */
.nav-drawer-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(11,13,18,.32);
  backdrop-filter: blur(8px) saturate(120%);
  -webkit-backdrop-filter: blur(8px) saturate(120%);
  z-index: 8999;
  opacity: 0;
  pointer-events: none;
  transition: opacity .4s cubic-bezier(.2,.8,.2,1);
}
.nav-drawer-overlay.open { opacity: 1; pointer-events: auto; }

.nav-drawer {
  display: none;
  position: fixed;
  top: 15vh;
  right: 4vw;
  bottom: 15vh;
  width: 78%;
  max-width: 420px;
  z-index: 9000;
  transform: translateX(calc(100% + 8vw));
  pointer-events: none;
  background:
    linear-gradient(135deg,
      rgba(216,238,247,.22) 0%,
      rgba(232,230,248,.22) 50%,
      rgba(221,243,230,.22) 100%);
  backdrop-filter: blur(48px) saturate(200%);
  -webkit-backdrop-filter: blur(48px) saturate(200%);
  border-radius: 28px;
  border: 1px solid rgba(255,255,255,.55);
  box-shadow:
    0 32px 80px rgba(11,13,18,.22),
    0 8px 24px rgba(11,13,18,.10),
    inset 0 1px 0 rgba(255,255,255,.7),
    inset 0 -1px 0 rgba(255,255,255,.18);
  transition: transform .55s cubic-bezier(.2,.8,.2,1);
  overflow: hidden;
}
.nav-drawer.open { transform: translateX(0); pointer-events: auto; }

/* Rombos decorativos en esquinas opuestas (mismo lenguaje que cta-panel) */
.nav-drawer::before, .nav-drawer::after {
  content: "";
  position: absolute;
  width: 320px; height: 320px;
  background: conic-gradient(from 200deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent));
  -webkit-mask-image: var(--diamond-mask);
          mask-image: var(--diamond-mask);
  -webkit-mask-size: 100% 100%;
          mask-size: 100% 100%;
  filter: blur(.5px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .8s cubic-bezier(.2,.8,.2,1), transform .8s cubic-bezier(.2,.8,.2,1);
}
.nav-drawer::before {
  left: -110px; top: -90px;
  transform: rotate(15deg) scale(.85);
}
.nav-drawer::after {
  right: -110px; bottom: -110px;
  transform: rotate(-25deg) scale(.85);
}
.nav-drawer.open::before { opacity: .55; transform: rotate(15deg) scale(1); }
.nav-drawer.open::after { opacity: .55; transform: rotate(-25deg) scale(1); transition-delay: .12s; }

.nav-drawer-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 28px 24px 22px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

/* === BRAND HEADER: logo + tagline === */
.nav-drawer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 32px;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity .55s .12s cubic-bezier(.2,.8,.2,1), transform .55s .12s cubic-bezier(.2,.8,.2,1);
}
.nav-drawer.open .nav-drawer-brand { opacity: 1; transform: translateY(0); }

.nav-drawer-brand .mark {
  width: 50px; height: 50px;
  flex-shrink: 0;
  filter:
    drop-shadow(0 0 0.5px rgba(255,255,255,.85))
    drop-shadow(0 0 1px rgba(255,255,255,.65))
    drop-shadow(0 4px 10px rgba(30,200,255,.40))
    drop-shadow(0 1px 2px rgba(11,13,18,.20))
    saturate(1.15);
  image-rendering: -webkit-optimize-contrast;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  transform: translateZ(0);
  transition: transform .4s cubic-bezier(.2,.8,.2,1);
}
.nav-drawer.open .nav-drawer-brand .mark {
  animation: nav-mark-pop .6s cubic-bezier(.2,.8,.2,1) .2s both;
}
@keyframes nav-mark-pop {
  0%   { opacity: 0; transform: scale(.6) rotate(-15deg); }
  60%  { opacity: 1; transform: scale(1.08) rotate(2deg); }
  100% { opacity: 1; transform: scale(1) rotate(0); }
}
.nav-drawer-brand .brand-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}
.brand-name {
  font-family: "Inter Tight", "SF Pro Display", -apple-system, system-ui, sans-serif;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -.028em;
  color: var(--ink);
  line-height: 1;
}
.brand-tagline {
  font-family: "Playfair Display", Georgia, "Times New Roman", serif;
  font-style: italic;
  font-size: 13px;
  color: rgba(11,13,18,.6);
  line-height: 1.3;
}

/* === LINKS — typography editorial === */
.nav-drawer-links {
  display: flex;
  flex-direction: column;
  margin: 0 -8px;
}
.nav-drawer-links a {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  align-items: baseline;
  gap: 12px;
  padding: 14px 12px;
  font-family: "Inter Tight", "SF Pro Display", -apple-system, system-ui, sans-serif;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -.03em;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(11,13,18,.07);
  border-radius: 0;
  background: transparent;
  transition: padding-left .3s cubic-bezier(.2,.8,.2,1), color .25s, background .25s;
  opacity: 0;
  transform: translateX(-10px);
}
.nav-drawer-links a:last-child { border-bottom: none; }

.nav-drawer.open .nav-drawer-links a {
  opacity: 1;
  transform: translateX(0);
  transition: opacity .5s, transform .5s, padding-left .3s, color .25s, background .25s;
}
.nav-drawer.open .nav-drawer-links a:nth-child(1) { transition-delay: .28s; }
.nav-drawer.open .nav-drawer-links a:nth-child(2) { transition-delay: .33s; }
.nav-drawer.open .nav-drawer-links a:nth-child(3) { transition-delay: .38s; }
.nav-drawer.open .nav-drawer-links a:nth-child(4) { transition-delay: .43s; }
.nav-drawer.open .nav-drawer-links a:nth-child(5) { transition-delay: .48s; }

.nav-drawer-links a .num {
  font-family: "Inter Tight", monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  color: rgba(11,13,18,.38);
  align-self: center;
  font-feature-settings: "tnum";
  transform: translateY(-2px);
}
.nav-drawer-links a .label {
  align-self: center;
}
.nav-drawer-links a .arrow {
  font-size: 18px;
  color: rgba(11,13,18,.28);
  transition: transform .3s cubic-bezier(.2,.8,.2,1), color .25s;
  align-self: center;
}

.nav-drawer-links a:hover,
.nav-drawer-links a:focus-visible,
.nav-drawer-links a:active {
  padding-left: 22px;
  background: rgba(255,255,255,.4);
}
.nav-drawer-links a:hover .arrow,
.nav-drawer-links a:active .arrow {
  color: var(--accent);
  transform: translateX(6px);
}
.nav-drawer-links a:hover .num,
.nav-drawer-links a:active .num {
  color: var(--accent);
}

/* === CTA — botón oscuro con gradient brand al hover === */
.nav-drawer-cta-row {
  margin-top: 28px;
  padding-top: 4px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .55s .55s, transform .55s .55s;
}
.nav-drawer.open .nav-drawer-cta-row { opacity: 1; transform: translateY(0); }

.nav-drawer-cta {
  position: relative;
  display: block;
  background: var(--ink);
  color: #fff !important;
  padding: 18px 22px !important;
  border-radius: 20px;
  text-decoration: none;
  text-align: center !important;
  overflow: hidden;
  box-shadow: 0 14px 32px rgba(11,13,18,.18), inset 0 1px 0 rgba(255,255,255,.08);
  transition: transform .2s, box-shadow .25s;
  isolation: isolate;
}
.nav-drawer-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 50%, var(--accent-3) 100%);
  opacity: 0;
  transition: opacity .35s cubic-bezier(.2,.8,.2,1);
  z-index: -1;
}
.nav-drawer-cta:hover::before { opacity: 1; }
.nav-drawer-cta:hover { color: var(--ink) !important; }
.nav-drawer-cta:active { transform: scale(.98); }

.nav-drawer-cta .cta-text {
  display: block;
  font-family: "Inter Tight", sans-serif;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -.014em;
  line-height: 1.15;
}
.nav-drawer-cta .cta-meta {
  display: block;
  font-family: "Inter Tight", sans-serif;
  font-size: 12px;
  font-weight: 500;
  opacity: .55;
  margin-top: 4px;
  letter-spacing: 0;
}

.nav-drawer-copyright {
  display: block;
  text-align: center;
  margin-top: 18px;
  font-family: "Inter Tight", sans-serif;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(11,13,18,.4);
}

/* === Activate en mobile === */
@media (max-width: 1000px) {
  .nav-burger { display: block; }
  .nav-drawer { display: block; }
  .nav-drawer-overlay { display: block; }
  nav.top .links { display: none; }     /* paridad canon · ocultar links desktop en mobile */
  nav.top .right { gap: 6px; }
  .progress { display: none; }           /* progress dots solo desktop · paridad canon */
}
@media (max-width: 600px) {
  nav.top .signin { display: none; }
  .nav-drawer {
    width: auto;
    left: 4vw;
    right: 4vw;
    max-width: none;
    top: 12vh;
    bottom: 12vh;
  }
}

body.drawer-open { overflow: hidden; }

@media (prefers-reduced-motion: reduce) {
  .nav-burger span,
  .nav-drawer, .nav-drawer-overlay,
  .nav-drawer *,
  .nav-drawer::before, .nav-drawer::after { transition: none !important; }
}

/* ============================================================== */
/* === Accessibility · Skip-to-content + global focus-visible === */
/* ============================================================== */
.skip-link {
  position: absolute;
  top: -100px;
  left: 12px;
  z-index: 9999;
  padding: 12px 20px;
  background: #0b0d12;
  color: #fff;
  font-family: "Inter Tight","Inter",sans-serif;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(11,13,18,.18);
  transition: top .15s ease-out;
}
.skip-link:focus,
.skip-link:focus-visible {
  top: 12px;
  outline: 2px solid #1ec8ff;
  outline-offset: 2px;
}

/* Global focus-visible — visible y consistente en interactivos */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
summary:focus-visible,
[tabindex]:not([tabindex="-1"]):focus-visible {
  outline: 2px solid #1ec8ff;
  outline-offset: 3px;
  border-radius: 4px;
}

/* Eliminar el outline default solo cuando :focus-visible no aplica
   (clicks de ratón) — manteniéndolo para navegación por teclado */
a:focus:not(:focus-visible),
button:focus:not(:focus-visible),
input:focus:not(:focus-visible),
textarea:focus:not(:focus-visible),
select:focus:not(:focus-visible),
summary:focus:not(:focus-visible) {
  outline: none;
}

/* ============================================================== */
/* === Global prefers-reduced-motion (WCAG SC 2.3.3) ============ */
/* ============================================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  html { scroll-behavior: auto !important; }
}