/* efecto — header fijo + estado vivo + riel de progreso pixelado */
.efx-header { --h: 76px; position: fixed; top: 0; left: 0; right: 0; z-index: var(--z-nav); padding-top: env(safe-area-inset-top, 0px); transition: transform .7s var(--ease-out); will-change: transform; pointer-events: none; }
.efx-header.is-hidden { transform: translateY(-115%); }
.efx-header::before { content: ''; position: absolute; inset: 0 0 -26px; z-index: -1; pointer-events: none;
  /* plano y opaco hasta el pie de la barra (el texto que scrollea no se lee detrás del logo/MENÚ); se desvanece solo en los 26px de abajo */
  background: linear-gradient(to bottom, rgba(13, 13, 16, .96) 0, rgba(13, 13, 16, .96) calc(100% - 26px), rgba(13, 13, 16, 0) 100%);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  -webkit-mask-image: linear-gradient(#000 calc(100% - 26px), transparent); mask-image: linear-gradient(#000 calc(100% - 26px), transparent); }
.efx-header__bar { height: var(--h); padding-inline: var(--gutter); display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 1.5rem; }
.efx-header a, .efx-header button { pointer-events: auto; }

/* logo wordmark + cubito */
.efx-logo { display: inline-flex; align-items: center; gap: .62rem; justify-self: start; min-height: 44px; padding: .5rem .5rem .5rem 0; color: var(--paper); }
.efx-logo__mark { font-size: 17px; }
.efx-logo__mark i { transition: transform .5s steps(5); }
.efx-logo__mark i:first-child { animation: efx-hop-a 5.6s steps(1) infinite; }
.efx-logo__mark i:last-child { animation: efx-hop-b 5.6s steps(1) infinite; }
@keyframes efx-hop-a { 0%, 62% { transform: translate(0, 0); } 66% { transform: translate(.2em, -.12em); } 70% { transform: translate(.38em, 0); } 74%, 88% { transform: translate(.38em, .38em); } 92% { transform: translate(.2em, .2em); } 96%, 100% { transform: translate(0, 0); } }
@keyframes efx-hop-b { 0%, 62% { transform: translate(0, 0); } 66% { transform: translate(-.2em, .12em); } 70% { transform: translate(-.38em, 0); } 74%, 88% { transform: translate(-.38em, -.38em); } 92% { transform: translate(-.2em, -.2em); } 96%, 100% { transform: translate(0, 0); } }
.efx-logo:hover .efx-logo__mark i:first-child { animation: none; transform: translate(.38em, .38em); }
.efx-logo:hover .efx-logo__mark i:last-child { animation: none; transform: translate(-.38em, -.38em); }
.efx-logo__word { display: inline-flex; font-family: var(--font-display); font-weight: 750; font-size: 1.62rem; letter-spacing: -0.045em; line-height: 1; font-variation-settings: 'opsz' 48; }
.efx-logo__word > span { display: inline-block; overflow: hidden; height: 1.12em; line-height: 1.12; }
.efx-logo__word b { position: relative; display: block; font-weight: inherit; transition: transform .7s var(--ease-out); }
.efx-logo__word b::after { content: attr(data-c); position: absolute; left: 0; top: 100%; color: var(--accent); }
.efx-logo:hover .efx-logo__word b, .efx-logo:focus-visible .efx-logo__word b { transform: translateY(-100%); }
.efx-logo__word > span:nth-child(2) b { transition-delay: .03s; } .efx-logo__word > span:nth-child(3) b { transition-delay: .06s; }
.efx-logo__word > span:nth-child(4) b { transition-delay: .09s; } .efx-logo__word > span:nth-child(5) b { transition-delay: .12s; } .efx-logo__word > span:nth-child(6) b { transition-delay: .15s; }

/* hora de Buenos Aires (dato verificable; la disponibilidad se suma cuando Santi la confirme) */
.efx-status { margin: 0; display: inline-flex; align-items: center; min-height: 44px; gap: .55rem; font-family: var(--font-mono); font-size: .75rem; letter-spacing: .06em; text-transform: uppercase; color: var(--paper-2); white-space: nowrap; }
.efx-status__city { color: var(--muted); transition: color .3s; }
.efx-status:hover .efx-status__city, .efx-status:focus-visible .efx-status__city { color: var(--paper); }
.efx-status__cube { width: 6px; height: 6px; flex: none; background: var(--accent); animation: efx-cube 3.2s steps(1) infinite; }
html[data-efx-band="day"] .efx-status__cube { background: var(--sun, #ffc02e); }
html[data-efx-band="aft"] .efx-status__cube { background: var(--accent); }
html[data-efx-band="night"] .efx-status__cube { background: var(--cobalt); }
@keyframes efx-cube { 0%, 84% { transform: translate(0, 0); } 88% { transform: translate(0, -3px); } 92% { transform: translate(0, 0); } 96% { transform: translate(0, -1px); } 100% { transform: translate(0, 0); } }
.efx-status__long { display: none; }
.efx-status__time { color: var(--paper); font-variant-numeric: tabular-nums; }
.efx-clock-colon { animation: efx-blink 2s steps(1) infinite; }
@keyframes efx-blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: .2; } }

.efx-header__right { justify-self: end; display: inline-flex; align-items: center; gap: .9rem; }

/* navegación principal visible (desktop) */
.efx-nav { display: none; justify-self: center; }
.efx-nav ul { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; gap: clamp(.4rem, 1.4vw, 1.6rem); }
.efx-nav a { position: relative; display: inline-flex; align-items: center; min-height: 44px; padding: 0 .6rem; font-family: var(--font-mono); font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; color: var(--paper-2); transition: color .3s var(--ease-out); }
.efx-nav a::before { content: ''; position: absolute; left: .6rem; right: .6rem; bottom: 7px; height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .45s var(--ease-out); }
.efx-nav a::after { content: ''; position: absolute; left: -2px; top: 50%; width: 5px; height: 5px; margin-top: -2.5px; background: var(--accent); opacity: 0; transform: scale(0); transition: transform .3s steps(3), opacity .2s; }
.efx-nav a:hover, .efx-nav a:focus-visible, .efx-nav a[aria-current], .efx-nav a[data-current] { color: var(--paper); }
.efx-nav a:hover::before, .efx-nav a:focus-visible::before { transform: scaleX(1); }
.efx-nav a[aria-current]::after, .efx-nav a[data-current]::after { opacity: 1; transform: scale(1); }
.efx-nav a[aria-current="page"]::before { transform: scaleX(1); }

/* CTA y botón de menú */
.efx-cta { padding: .78em 1.25em; min-height: 44px; font-size: .75rem; --bg: rgba(13, 13, 16, .82); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.efx-menu-btn { display: inline-flex; align-items: center; gap: .7rem; min-height: 44px; padding: .62rem 1.05rem .62rem .85rem; border-radius: 999px; box-shadow: inset 0 0 0 1px var(--line-strong); background: rgba(13, 13, 16, .82); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); font-family: var(--font-mono); font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; color: var(--paper); transition: background .4s var(--ease-out), color .4s var(--ease-out), box-shadow .4s; will-change: transform; }
.efx-menu-btn:hover, .efx-menu-btn:focus-visible { background: var(--paper); color: var(--ink); box-shadow: none; }
.efx-menu-btn__ico { display: grid; grid-template-columns: repeat(3, 4px); grid-template-rows: repeat(3, 4px); gap: 2px; }
.efx-menu-btn__ico i { background: currentColor; transition: transform .45s var(--ease-out), background .3s; }
.efx-menu-btn__ico i:nth-child(even) { transition-delay: .06s; }
.efx-menu-btn__txt { position: relative; display: inline-block; overflow: hidden; height: 1.3em; line-height: 1.3; min-width: 4.2em; }
.efx-menu-btn__txt > span { display: block; transition: transform .6s var(--ease-out); }
.efx-menu-btn__txt > [data-close] { position: absolute; left: 0; top: 0; transform: translateY(110%); }
.is-menu-open .efx-menu-btn__txt > [data-open] { transform: translateY(-110%); }
.is-menu-open .efx-menu-btn__txt > [data-close] { transform: none; }
/* 3×3 → X (quedan esquinas + centro) */
.is-menu-open .efx-menu-btn__ico i:nth-child(2), .is-menu-open .efx-menu-btn__ico i:nth-child(4),
.is-menu-open .efx-menu-btn__ico i:nth-child(6), .is-menu-open .efx-menu-btn__ico i:nth-child(8) { transform: scale(0); }
.is-menu-open .efx-menu-btn { background: var(--paper); color: var(--ink); box-shadow: none; }
.is-menu-open .efx-menu-btn__ico i:nth-child(odd) { background: var(--accent); }
.is-menu-open .efx-header { z-index: calc(var(--z-menu) + 1); transform: none !important; }
.is-menu-open .efx-header::before { opacity: 0; }

/* riel de progreso pixelado */
.efx-rail { position: fixed; z-index: calc(var(--z-nav) + 2); right: 12px; top: 50%; transform: translateY(-50%); height: min(44vh, 380px); display: flex; flex-direction: column; justify-content: space-between; align-items: flex-end; pointer-events: none; mix-blend-mode: difference; transition: opacity .5s; }
.efx-rail i { display: block; width: 4px; height: 4px; background: rgba(255, 255, 255, .22); transition: background-color .25s steps(2), transform .3s; }
.efx-rail i.is-tick { width: 9px; background: rgba(255, 255, 255, .4); }
.efx-rail i.is-on { background: #fff; }
.efx-rail i.is-head { background: #fff; transform: scale(1.7); }
.is-loading .efx-rail { opacity: 0; }

/* número de sección actual (01–12, orden real de la home) */
.efx-rail__n { position: absolute; right: 16px; bottom: -26px; opacity: 0; transition: opacity .5s; transform: scale(.9); transform-origin: right bottom; white-space: nowrap; font-family: var(--font-mono); font-size: .75rem; letter-spacing: .08em; color: #fff; font-variant-numeric: tabular-nums; }
.efx-rail__n::after { content: ' / 12'; opacity: .45; }
.efx-rail__n.is-peek { opacity: 1; transition-duration: .15s; }

/* responsive */
@media (min-width: 1200px) { .efx-nav { display: block; } }
@media (min-width: 1360px) { .efx-status__long { display: inline; } .efx-status__short { display: none; } }
@media (max-width: 760px) {
  .efx-header { --h: 64px; }
  .efx-header__bar { gap: .8rem; }
  .efx-header__right { gap: .6rem; }
  .efx-cta { display: none; }
  .efx-logo__word { font-size: 1.4rem; }
  .efx-menu-btn { padding: .6rem .9rem .6rem .75rem; }
  .efx-rail__n { display: none; }
  .efx-rail { right: 0; left: 0; top: env(safe-area-inset-top, 0px); transform: none; height: 3px; width: 100%; flex-direction: row; align-items: stretch; gap: 2px; justify-content: stretch; mix-blend-mode: normal; overflow: hidden; max-width: 100vw; }
  .efx-rail i { flex: 1 1 0; min-width: 0; width: auto; height: 3px; margin: 0; background: rgba(241, 238, 230, .1); }
  .efx-rail i.is-tick { width: auto; background: rgba(241, 238, 230, .24); }
  .efx-rail i.is-on { background: var(--accent); }
  .efx-rail i.is-head { background: var(--paper); transform: none; }
}
@media (prefers-reduced-motion: reduce) { .efx-logo__mark i, .efx-clock-colon, .efx-status__cube { animation: none !important; } }

section[tabindex="-1"]:focus, main:focus { outline: none; }

/* guarda global: nada del contenido puede ensanchar el viewport (los elementos fixed del chrome heredan ese ancho) */
html, body { overflow-x: clip; }