/* =========================================================
   ALGOR — enhance.css
   Capa premium de refinamiento sobre styles.css (Tailwind + custom).
   No sobreescribe la voz del diseño: la eleva.
   ---------------------------------------------------------
   Contiene:
   1. Fix de scroll en móviles (root, panel, iframe, overscroll).
   2. Halo retro CRT + booteo glitch para los números de sección.
   3. Corner brackets, cursor parpadeante y scan-line CRT.
   4. Efectos premium: glow neón, barra de progreso, magnet hover.
   5. Overlay click-to-play para el iframe del trailer.
   6. Refinado tipográfico y motion micro-interactions.
   ========================================================= */


/* =========================================================
   0. TOKENS LOCALES (fallbacks compatibles con :root global)
   ========================================================= */
:root {
  --algor-cyan: var(--cyan-bright, #0ff5f0);
  --algor-cyan-glow: var(--cyan-glow, rgba(0, 245, 240, 0.55));
  --algor-ink-color: var(--algor-ink, #06141a);
  --algor-line-color: var(--algor-line, rgba(255, 255, 255, 0.08));
  --algor-line-strong-color: var(--algor-line-strong, rgba(255, 255, 255, 0.2));
  --algor-crt-glow: 0 0 6px var(--algor-cyan),
                    0 0 16px color-mix(in oklab, var(--algor-cyan) 55%, transparent),
                    0 0 42px color-mix(in oklab, var(--algor-cyan) 25%, transparent);
}


/* =========================================================
   1. SCROLL FIX GLOBAL (mobile-safe · iOS-friendly)
   ---------------------------------------------------------
   Reglas clave que hemos aprendido:
   · NO tocar el overflow-y de <html>. iOS Safari trata el
     scroll natural del viewport a través del <html>; si le
     das `overflow-y: auto` u `overflow: hidden`, deja de
     hacer scroll con el dedo o pierde el momentum.
   · NO poner `touch-action` restrictivo en <body>. `auto`
     permite scroll y pinch-zoom nativos.
   · Solo evitamos scroll horizontal con `overflow-x: clip`
     en el wrapper (fallback a hidden para navegadores
     antiguos).
   · Ningún estado (menú abierto, etc.) puede añadir
     `overflow: hidden` al body.
   ========================================================= */
html {
  /* Deliberadamente NO fijamos overflow aquí — mantenemos el
     scroll natural del viewport que iOS gestiona bien. */
  scroll-behavior: auto;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 96px;
}

body {
  /* Sólo contenemos el eje X para que ningún elemento fuera de
     rango cause scroll horizontal. NO tocamos el eje Y ni el
     touch-action — deben quedar en `visible` y `auto` (el
     default), que es lo que iOS espera. */
  overflow-x: clip;
  -webkit-tap-highlight-color: transparent;
}

/* Fallback para navegadores que no soportan `overflow: clip` */
@supports not (overflow: clip) {
  body { overflow-x: hidden; }
}

/* El wrapper principal en el HTML usa .overflow-x-hidden de Tailwind.
   Con `overflow-x: hidden` genera un contexto de scroll que en algunos
   escenarios táctiles impide el gesto vertical. Lo sustituimos por
   `clip` (que NO crea contexto) y liberamos el eje Y. */
.algor.algor-v2 {
  overflow-x: clip;
  overflow-y: visible;
  position: relative;
}
@supports not (overflow: clip) {
  .algor.algor-v2 { overflow-x: hidden; }
}

/* El panel móvil no debe reservar espacio cuando está cerrado. */
.algor-mobile-panel { pointer-events: none; }
.algor-mobile-panel.is-open { pointer-events: auto; }

/* El iframe de Vimeo puede robar el gesto de scroll en móvil. Lo
   escudamos con una capa touch-friendly que se retira al primer tap. */
.algor-trailer-shell {
  position: relative;
  isolation: isolate;
}
.algor-trailer-shell iframe {
  pointer-events: none;
  transition: pointer-events 0s;
}
.algor-trailer-shell.is-active iframe { pointer-events: auto; }
.algor-trailer-shield {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: grid;
  place-items: center;
  cursor: pointer;
  background:
    radial-gradient(ellipse at center,
      color-mix(in oklab, var(--algor-cyan) 12%, transparent) 0%,
      rgba(0, 0, 0, 0.55) 55%,
      rgba(0, 0, 0, 0.82) 100%);
  transition: opacity 0.35s ease, transform 0.35s ease;
  touch-action: manipulation;
  overflow: hidden;
}
.algor-trailer-shell.is-active .algor-trailer-shield {
  opacity: 0;
  pointer-events: none;
  transform: scale(1.02);
}
.algor-trailer-shield::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 2px,
    color-mix(in oklab, var(--algor-cyan) 12%, transparent) 3px,
    transparent 4px
  );
  mix-blend-mode: overlay;
  opacity: 0.6;
  pointer-events: none;
}
.algor-trailer-play {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 14px 22px 14px 20px;
  color: #fff;
  font-family: var(--font-algor-mono, ui-monospace, monospace);
  font-size: 11px;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  background: color-mix(in oklab, var(--algor-cyan) 12%, rgba(0,0,0,0.55));
  border: 1px solid var(--algor-cyan);
  border-radius: 2px;
  box-shadow:
    0 0 0 1px color-mix(in oklab, var(--algor-cyan) 55%, transparent),
    0 0 32px color-mix(in oklab, var(--algor-cyan) 45%, transparent),
    inset 0 0 24px color-mix(in oklab, var(--algor-cyan) 18%, transparent);
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  cursor: pointer;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.algor-trailer-play:hover {
  transform: translateY(-2px);
  background: color-mix(in oklab, var(--algor-cyan) 22%, rgba(0,0,0,0.5));
  box-shadow:
    0 0 0 1px var(--algor-cyan),
    0 0 48px color-mix(in oklab, var(--algor-cyan) 65%, transparent),
    inset 0 0 32px color-mix(in oklab, var(--algor-cyan) 28%, transparent);
}
.algor-trailer-play-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--algor-cyan);
  border-radius: 50%;
  color: var(--algor-cyan);
  font-size: 12px;
  line-height: 1;
  animation: algor-play-pulse 2.6s ease-in-out infinite;
}
@keyframes algor-play-pulse {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in oklab, var(--algor-cyan) 55%, transparent); }
  50%      { box-shadow: 0 0 0 10px color-mix(in oklab, var(--algor-cyan) 0%, transparent); }
}


/* =========================================================
   2. HALO RETRO CRT SOBRE LOS NÚMEROS DE SECCIÓN — PRO GRADE
   Efectos reales de tubo catódico:
     · Contorno hueco (outline) — NUNCA relleno cyan sólido
     · Aberración cromática RGB (desdoblado rojo + azul)
     · Flicker constante perceptible + micro-shake continuo
     · Glitch severo intermitente (drop-frame CRT)
     · Scan line brillante barriendo el número
     · Líneas horizontales de tubo catódico permanentes
   ========================================================= */

.algor-num-wrap {
  --num-color: var(--algor-cyan);
  position: relative;
  display: inline-flex;
  align-items: flex-end;
  gap: 6px;
  padding: 6px 14px 6px 14px;
  line-height: 0.9;
  isolation: isolate;
  /* Sin animaciones sobre el wrap: el contenedor NO tiembla ni se mueve. */
}

/* Halo detrás — sin scale (no tiembla), sólo intensidad oscilante suave */
.algor-num-halo {
  position: absolute;
  inset: -18% -16%;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse at center,
      color-mix(in oklab, var(--num-color) 42%, transparent) 0%,
      color-mix(in oklab, var(--num-color) 16%, transparent) 40%,
      transparent 72%);
  filter: blur(22px);
  opacity: 0.75;
  animation: algor-halo-breathe 3.2s ease-in-out infinite;
}
@keyframes algor-halo-breathe {
  0%, 100% { opacity: 0.55; }
  50%      { opacity: 0.9; }
}

/* Scan line CRT suave que barre el número (opcional, muy discreta) */
.algor-num-scan {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  overflow: hidden;
  border-radius: 2px;
}
.algor-num-scan::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 10%;
  min-height: 4px;
  top: -15%;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    color-mix(in oklab, var(--num-color) 30%, transparent) 45%,
    color-mix(in oklab, var(--num-color) 55%, transparent) 50%,
    color-mix(in oklab, var(--num-color) 30%, transparent) 55%,
    transparent 100%
  );
  filter: blur(1px);
  mix-blend-mode: screen;
  animation: algor-num-scan-drop 4.5s linear infinite;
  opacity: 0.7;
}
@keyframes algor-num-scan-drop {
  0%   { transform: translateY(-30%); opacity: 0; }
  10%  { opacity: 0.7; }
  90%  { opacity: 0.7; }
  100% { transform: translateY(1000%); opacity: 0; }
}

/* Corner brackets estáticos con leve glow (sin parpadeo agresivo) — a escala del número reducido */
.algor-num-bracket {
  position: absolute;
  width: 9px;
  height: 9px;
  border-color: var(--num-color);
  filter: drop-shadow(0 0 4px color-mix(in oklab, var(--num-color) 65%, transparent));
  z-index: 4;
  pointer-events: none;
  opacity: 0.9;
}
.algor-num-tl { top: 0; left: 0;  border-top: 1.2px solid; border-left: 1.2px solid; }
.algor-num-tr { top: 0; right: 0; border-top: 1.2px solid; border-right: 1.2px solid; }
.algor-num-bl { bottom: 0; left: 0;  border-bottom: 1.2px solid; border-left: 1.2px solid; }
.algor-num-br { bottom: 0; right: 0; border-bottom: 1.2px solid; border-right: 1.2px solid; }

/* Cursor CRT parpadeante al lado del número — a la mitad del tamaño anterior */
.algor-num-cursor {
  display: inline-block;
  align-self: flex-end;
  margin-bottom: 0.08em;
  color: var(--num-color);
  font-family: var(--font-algor-mono, ui-monospace, monospace);
  font-size: clamp(14px, 2.5vw, 27px);
  line-height: 1;
  text-shadow: 0 0 6px var(--num-color),
               0 0 16px color-mix(in oklab, var(--num-color) 45%, transparent);
  animation: algor-cursor-blink 1s steps(2, jump-none) infinite;
  transform: translateY(-0.02em);
}
@keyframes algor-cursor-blink {
  0%, 49%   { opacity: 1; }
  50%, 100% { opacity: 0; }
}

/* ---------------------------------------------------------
   NÚMERO PRINCIPAL — CONTORNO HUECO + PARPADEO DE NEÓN SUTIL
   Sin shake, sin glitch, sin aberración cromática.
   El número es HUECO (text-stroke cyan) y sólo su GLOW parpadea
   con un ciclo suave de 3s, más una micro-caída (frame ~55%)
   que simula un neón fatigado. NADA MÁS.
   Tamaño reducido a la mitad respecto a styles.css.
   --------------------------------------------------------- */
.algor-num-wrap .algor-chapter-num {
  position: relative;
  z-index: 2;
  color: transparent !important;
  -webkit-text-fill-color: transparent;
  -webkit-text-stroke: 1.2px var(--num-color);
  text-stroke: 1.2px var(--num-color);
  font-family: var(--font-algor-mono, ui-monospace, monospace);
  font-feature-settings: "ss01", "tnum";
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  /* Reducción a la mitad: styles.css tenía clamp(56px, 10vw, 112px). */
  font-size: clamp(28px, 5vw, 56px) !important;
  text-shadow:
    0 0 6px var(--num-color),
    0 0 18px color-mix(in oklab, var(--num-color) 55%, transparent),
    0 0 42px color-mix(in oklab, var(--num-color) 25%, transparent);
  animation: algor-neon-pulse 3.2s ease-in-out infinite;
  will-change: text-shadow, opacity;
}

/* Parpadeo tipo neón: intensidad del glow oscila + una caída breve. */
@keyframes algor-neon-pulse {
  0%, 100% {
    opacity: 1;
    text-shadow:
      0 0 6px var(--num-color),
      0 0 18px color-mix(in oklab, var(--num-color) 55%, transparent),
      0 0 42px color-mix(in oklab, var(--num-color) 25%, transparent);
  }
  40% {
    opacity: 0.92;
    text-shadow:
      0 0 4px var(--num-color),
      0 0 12px color-mix(in oklab, var(--num-color) 40%, transparent);
  }
  /* Micro parpadeo (dip breve) — el tubo baja intensidad 1 frame */
  55% {
    opacity: 0.55;
    text-shadow:
      0 0 2px var(--num-color),
      0 0 6px color-mix(in oklab, var(--num-color) 25%, transparent);
  }
  58% {
    opacity: 1;
    text-shadow:
      0 0 8px var(--num-color),
      0 0 22px color-mix(in oklab, var(--num-color) 60%, transparent),
      0 0 48px color-mix(in oklab, var(--num-color) 30%, transparent);
  }
  75% {
    opacity: 0.98;
    text-shadow:
      0 0 6px var(--num-color),
      0 0 18px color-mix(in oklab, var(--num-color) 50%, transparent);
  }
}

/* Estado BOOTEANDO (scramble por JS): mismo estilo hueco cyan, sin trucos raros. */
.algor-num-wrap[data-booting="1"] .algor-chapter-num {
  animation: algor-neon-pulse 0.9s ease-in-out infinite;
}

/* Estado tras boot: un pequeño destello y sigue el pulso. */
.algor-num-wrap.is-booted .algor-chapter-num {
  animation:
    algor-neon-pulse 3.2s ease-in-out infinite,
    algor-num-lock 0.55s cubic-bezier(.2,.7,.2,1);
}
@keyframes algor-num-lock {
  0%   {
    text-shadow:
      0 0 10px var(--num-color),
      0 0 32px var(--num-color),
      0 0 70px var(--num-color);
  }
  100% {
    text-shadow:
      0 0 6px var(--num-color),
      0 0 18px color-mix(in oklab, var(--num-color) 55%, transparent),
      0 0 42px color-mix(in oklab, var(--num-color) 25%, transparent);
  }
}

/* En móviles reducimos el tamaño para respetar el layout de columna */
@media (max-width: 900px) {
  .algor-num-wrap { padding: 4px 10px; gap: 4px; }
  .algor-num-bracket { width: 7px; height: 7px; }
  .algor-num-wrap .algor-chapter-num { font-size: 32px !important; }
  .algor-num-cursor { font-size: clamp(12px, 4vw, 20px); }
}


/* =========================================================
   3. BARRA DE PROGRESO SUPERIOR (scroll neón)
   ========================================================= */
.algor-scroll-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(
    to right,
    color-mix(in oklab, var(--algor-cyan) 80%, white) 0%,
    var(--algor-cyan) 45%,
    color-mix(in oklab, var(--algor-cyan) 50%, transparent) 100%);
  transform-origin: left center;
  transform: scaleX(0);
  z-index: 70;
  box-shadow: 0 0 12px var(--algor-cyan), 0 0 26px var(--algor-cyan-glow);
  pointer-events: none;
  transition: transform 0.12s linear;
}


/* =========================================================
   4. REFINADO DEL HERO Y BOTONES
   ========================================================= */

/* Título hero: sutil glow y micro-glitch al aparecer */
.algor-hero-title { animation: algor-title-emerge 1.2s cubic-bezier(.2,.7,.2,1) both; }
@keyframes algor-title-emerge {
  0%   { opacity: 0; transform: translateY(24px) scale(0.985); filter: blur(6px); }
  60%  { opacity: 1; filter: blur(0); }
  100% { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
}

/* Botones primarios: brillo lateral en hover */
.algor-btn-primary {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.algor-btn-primary::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    transparent 0%,
    transparent 40%,
    rgba(255, 255, 255, 0.55) 50%,
    transparent 60%,
    transparent 100%);
  transform: translateX(-120%);
  transition: transform 0.6s cubic-bezier(.2,.7,.2,1);
  pointer-events: none;
  z-index: 1;
}
.algor-btn-primary:hover::after { transform: translateX(120%); }
.algor-btn-primary > * { position: relative; z-index: 2; }

/* Botón ghost: contorno con hairline glow */
.algor-btn-ghost {
  transition: transform 0.2s, color 0.2s, border-color 0.2s, box-shadow 0.25s;
}
.algor-btn-ghost:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px color-mix(in oklab, var(--algor-cyan) 22%, transparent);
}

/* HUD y rail: hover con leve subrayado neón animado */
.algor-hud-link { position: relative; }
.algor-hud-link::before {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--algor-cyan), transparent);
  transition: right 0.4s cubic-bezier(.2,.7,.2,1);
  pointer-events: none;
}
.algor-hud-link:hover::before,
.algor-hud-link.is-active::before { right: 0; }


/* =========================================================
   5. TARJETAS / MARCOS: leve corner-glow al entrar en viewport
   ========================================================= */
.algor-hero-cover-frame,
.algor-author-portrait-frame,
.algor-buy-card {
  position: relative;
}
.algor-buy-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    130deg,
    transparent 0%,
    transparent 40%,
    color-mix(in oklab, var(--algor-cyan) 8%, transparent) 50%,
    transparent 60%,
    transparent 100%);
  background-size: 240% 240%;
  animation: algor-shine-slow 9s ease-in-out infinite;
  mix-blend-mode: screen;
}
@keyframes algor-shine-slow {
  0%   { background-position: 0% 0%; }
  50%  { background-position: 100% 100%; }
  100% { background-position: 0% 0%; }
}


/* =========================================================
   6. ACCESIBILIDAD Y FOCUS
   ========================================================= */
:focus-visible {
  outline: 2px solid var(--algor-cyan);
  outline-offset: 3px;
  border-radius: 2px;
}
.algor-btn-primary:focus-visible,
.algor-btn-ghost:focus-visible {
  outline: 2px solid var(--algor-cyan);
  outline-offset: 4px;
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--algor-cyan) 30%, transparent);
}

/* Cuando el usuario prefiere menos movimiento: apagamos las animaciones caras */
/* NOTA: Deliberadamente NO respetamos prefers-reduced-motion aquí.
   El diseño exige que el pulso del neón y las micro-interacciones
   se vean siempre. Si algún día se quiere respetar, este bloque es
   el sitio para reactivar la desactivación. */


/* =========================================================
   7. AJUSTES MÓVIL FINALES
   ========================================================= */
@media (max-width: 900px) {
  /* Aseguramos que el rail lateral no interfiera con touch */
  .algor-rail { display: none !important; }

  /* El header móvil ocupa full width sin bloquear scroll */
  .algor-hud-bar { pointer-events: auto; }

  /* Ajustes de área tocable en la cabecera */
  .algor-mobile-btn { min-width: 44px; min-height: 44px; }

  /* Barra de progreso más gruesa en móvil */
  .algor-scroll-bar { height: 3px; }
}

/* Ajustes muy pequeños (<= 480px) */
@media (max-width: 480px) {
  .algor-num-wrap { padding: 4px 10px; }
  .algor-num-cursor { display: none; }  /* el cursor parpadeante puede estorbar en pantallas ínfimas */
}
