/* ═══════════════════════════════════════════════════════════════
   ATHAN SHOCK — styles.css
   Estética: Noir Editorial Investigativo
   Fuentes: Bebas Neue (display) · IBM Plex Mono (body)
═══════════════════════════════════════════════════════════════ */


/* ── 0. VARIABLES ─────────────────────────────────────────── */
:root {
  --bg:           #080808;
  --surface:      #111111;
  --surface-2:    #181818;
  --border:       #1f1f1f;
  --border-mid:   #2e2e2e;

  --text:         #e0d8cc;
  --text-dim:     #7a7570;
  --text-muted:   #3e3c3a;

  --accent:       #c41c1c;
  --accent-hi:    #e02828;
  --accent-lo:    #8a1212;

  --font-display: 'Bebas Neue', 'Arial Narrow', sans-serif;
  --font-serif:   'Playfair Display', Georgia, serif;
  --font-mono:    'IBM Plex Mono', 'Courier New', monospace;

  --max-w:        1200px;
  --gutter:       clamp(1.25rem, 4vw, 3rem);
  --section-gap:  clamp(4rem, 10vw, 9rem);

  --radius:       2px;
  --transition:   220ms cubic-bezier(0.4, 0, 0.2, 1);
  --header-h:     64px;
}


/* ── 1. RESET & BASE ──────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
  scrollbar-gutter: stable;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

ul { list-style: none; }


/* ── 2. GRAIN OVERLAY ─────────────────────────────────────── */
.grain {
  position: fixed;
  inset: -50%;
  width: 200%;
  height: 200%;
  pointer-events: none;
  z-index: 999;
  opacity: 0.032;
  will-change: transform;
  transform: translateZ(0);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  animation: grain-shift 8s steps(10) infinite;
}

@keyframes grain-shift {
  0%, 100% { transform: translate3d(0, 0, 0); }
  10%  { transform: translate3d(-2%, -3%, 0); }
  20%  { transform: translate3d(3%, 1%, 0); }
  30%  { transform: translate3d(-1%, 4%, 0); }
  40%  { transform: translate3d(4%, -2%, 0); }
  50%  { transform: translate3d(-3%, 3%, 0); }
  60%  { transform: translate3d(2%, -4%, 0); }
  70%  { transform: translate3d(-4%, 2%, 0); }
  80%  { transform: translate3d(3%, -1%, 0); }
  90%  { transform: translate3d(-2%, 4%, 0); }
}


/* ── 3. HEADER ────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  transform: translateZ(0);
  background: rgba(8, 8, 8, 0.94);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  transition: border-color var(--transition);
}

.site-header.scrolled { border-color: var(--border-mid); }

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.08em;
  color: var(--text);
  user-select: none;
}

.logo-mark {
  color: var(--accent);
  font-size: 0.9rem;
  line-height: 1;
  animation: blink-mark 2.8s step-end infinite;
}

@keyframes blink-mark {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.2; }
}

.site-logo em { font-style: normal; color: var(--accent); }

.site-nav ul { display: flex; gap: 2rem; align-items: center; }

.site-nav a {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}

.site-nav a:hover,
.site-nav a.active     { color: var(--text); border-color: var(--border-mid); }
.site-nav a.nav-accent { color: var(--accent); }
.site-nav a.nav-accent:hover { color: var(--accent-hi); border-color: var(--accent); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  height: 1.5px;
  background: var(--text);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.scroll-bar {
  position: absolute;
  bottom: 0; left: 0;
  height: 1px;
  width: 0%;
  background: var(--accent);
  transition: width 80ms linear;
  transform: translateZ(0);
}


/* ── 4. MAIN ──────────────────────────────────────────────── */
.site-main { padding-top: var(--header-h); }


/* ── 5. HERO ──────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: calc(100svh - var(--header-h));
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
  contain: layout paint;
}

/* ── TICKER ─────────────────────────────────────────────────
   Comportamiento: el texto entra por la DERECHA, cruza la
   pantalla y desaparece por la IZQUIERDA. Una vez fuera del
   borde izquierdo, el snap de vuelta a la derecha es invisible
   porque el elemento ya está fuera de .ticker-wrap (overflow:hidden).

   Keyframes:
     0%   → translateX(100vw)   : empieza justo fuera del borde derecho
     100% → translateX(-100%)   : sale completamente por el borde izquierdo
              (-100% de su propio ancho, que es max-content)
─────────────────────────────────────────────────────────── */
.ticker-wrap {
  overflow: hidden;
  background: var(--accent);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  height: 2.5rem;
}

.ticker-track {
  display: inline-flex;
  align-items: center;
  gap: 2.5rem;
  padding: 0 1rem;
  white-space: nowrap;
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: #fff;
  will-change: transform;
  animation: ticker-rtl 24s linear infinite;
}

.ticker-track .sep { opacity: 0.45; }

@keyframes ticker-rtl {
  from { transform: translateX(100vw); }
  to   { transform: translateX(-100%); }
}

/* Hero body */
.hero-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(3rem, 8vw, 7rem) var(--gutter);
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}

.hero-label .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(196, 28, 28, 0.5); }
  50%       { box-shadow: 0 0 0 6px rgba(196, 28, 28, 0); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 10rem);
  line-height: 0.92;
  letter-spacing: 0.02em;
  color: var(--text);
  margin-bottom: 2rem;
}

.hero-title em {
  font-style: italic;
  font-family: var(--font-serif);
  color: var(--accent);
  font-size: 0.72em;
}

.hero-sub {
  max-width: 480px;
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.hero-deco {
  position: absolute;
  right: var(--gutter);
  bottom: 2rem;
  font-family: var(--font-display);
  font-size: clamp(6rem, 20vw, 18rem);
  color: var(--surface-2);
  line-height: 1;
  user-select: none;
  pointer-events: none;
  z-index: 0;
}


/* ── 6. BOTONES ───────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.75rem 2rem;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  transition: background var(--transition), box-shadow var(--transition);
}

.btn-primary:hover {
  background: var(--accent-hi);
  box-shadow: 0 0 20px rgba(196, 28, 28, 0.35);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.75rem 1.5rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid var(--border-mid);
  border-radius: var(--radius);
  transition: color var(--transition), border-color var(--transition);
}

.btn-ghost:hover { color: var(--text); border-color: var(--text-dim); }


/* ── 7. FEATURES ──────────────────────────────────────────── */
.features {
  padding: var(--section-gap) var(--gutter);
  max-width: var(--max-w);
  margin: 0 auto;
  contain: layout paint;
}

.section-header { margin-bottom: clamp(2rem, 5vw, 4rem); }

.section-tag {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 5rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  color: var(--text);
}

.section-title em {
  font-style: italic;
  font-family: var(--font-serif);
  color: var(--text-dim);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.feature-card {
  background: var(--surface);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  opacity: 0;
  transform: translateY(16px);
  transition: background var(--transition), opacity 0.5s ease, transform 0.5s ease;
}

.feature-card.revealed { opacity: 1; transform: translateY(0); }
.feature-card:hover    { background: var(--surface-2); }

.card-icon {
  font-size: 1.5rem;
  line-height: 1;
  margin-bottom: 0.25rem;
  filter: grayscale(1) brightness(0.8);
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: 0.04em;
  color: var(--text);
}

.feature-card p {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.75;
}


/* ── 8. DEV NOTICE ────────────────────────────────────────── */
.dev-notice {
  max-width: var(--max-w);
  margin: 0 auto var(--section-gap);
  padding: 0.9rem 1.5rem;
  border: 1px dashed var(--border-mid);
  border-left: 3px solid var(--accent);
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.dev-notice span { color: var(--accent); font-size: 1rem; }


/* ── 9. FOOTER ────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem var(--gutter);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}

.footer-brand em { font-style: normal; color: var(--accent); }

.footer-copy {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-align: right;
}


/* ── 10. PÁGINAS DE ERROR ─────────────────────────────────── */
.error-page {
  min-height: calc(100svh - var(--header-h));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--section-gap) var(--gutter);
  max-width: var(--max-w);
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.error-code {
  font-family: var(--font-display);
  font-size: clamp(7rem, 25vw, 20rem);
  line-height: 0.85;
  color: var(--surface-2);
  letter-spacing: -0.02em;
  user-select: none;
  position: absolute;
  right: var(--gutter);
  top: 50%;
  transform: translateY(-50%);
  z-index: 0;
}

.error-content {
  position: relative;
  z-index: 1;
  max-width: 560px;
}

.error-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.error-tag::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--accent);
}

.error-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  line-height: 0.92;
  letter-spacing: 0.02em;
  color: var(--text);
  margin-bottom: 1.25rem;
}

.error-desc {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.error-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.error-redact {
  display: inline-block;
  background: var(--accent-lo);
  color: transparent;
  user-select: none;
  border-radius: 1px;
  font-size: 0.7rem;
  padding: 0 4px;
  margin-bottom: 1.5rem;
}


/* ── 11. RESPONSIVO ───────────────────────────────────────── */
@media (max-width: 720px) {
  .nav-toggle { display: flex; }

  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem var(--gutter);
    display: none;
  }

  .site-nav.open { display: block; }

  .site-nav ul { flex-direction: column; gap: 1.25rem; align-items: flex-start; }
  .site-nav a  { font-size: 0.85rem; }

  /* backdrop-filter muy costoso en GPU móvil → off */
  .site-header {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(8, 8, 8, 0.98);
  }

  /* Grain más ligero en móvil */
  .grain { opacity: 0.02; animation: grain-shift 12s steps(6) infinite; }

  .hero-deco { display: none; }

  .error-code { font-size: 35vw; opacity: 0.5; }

  .footer-inner  { flex-direction: column; align-items: flex-start; }
  .footer-copy   { text-align: left; }
}


/* ── 12. ACCESIBILIDAD ────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .grain        { display: none; }
  .ticker-track { animation: none; }
  .feature-card { opacity: 1; transform: none; }
}

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