/* ============================================================
   LLAB — Mockup #2: Chromatic Offset (v2 — RGB anaglyph)
   ------------------------------------------------------------
   Three text channels — pure R, G, B — stacked via screen
   blend so they combine to white where all three overlap.
   Each channel sits at a biased CSS rest pose (translate +
   rotate) so the misregistration reads from frame one; JS
   wanders small deltas on top, and scroll amplifies them.
   Periodic glitch jolts fire every 7–11s as broadcast
   tracking errors.

   Backdrop: CRT scanlines + fine noise + edge chromatic-
   aberration vignette. No paper grain — this is screen,
   not print.
   ============================================================ */

:root {
  --lime:    #AEFF00;
  --display: "Bebas Neue", "Inter Display", Impact, "Helvetica Neue", system-ui, sans-serif;
  --body:    "Inter", system-ui, sans-serif;
  --mono:    ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --gutter:  clamp(1.25rem, 0.8rem + 2.4vw, 3rem);
  --text:    #F1F4EE;
  --dim:     rgba(241, 244, 238, 0.62);
  --hair:    rgba(255, 255, 255, 0.22);
  --ch-r:    #FF2A24;
  --ch-g:    #00E861;
  --ch-b:    #1F66FF;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: clamp(4.5rem, 3.5rem + 3vw, 6rem);
}
body {
  background: #050507;
  color: var(--text);
  font-family: var(--body);
  font-size: 1rem;
  line-height: 1.62;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---- CRT scanlines + fine noise, fixed behind everything ---- */
.mk-paper {
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background:
    repeating-linear-gradient(
      0deg,
      rgba(255, 255, 255, 0.04) 0 1px,
      transparent 1px 4px
    ),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='1.6' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.10 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/></svg>"),
    radial-gradient(ellipse at 50% 50%, #0A0A10 0%, #050507 55%, #000 100%);
  background-size: auto, 160px 160px, auto;
  mix-blend-mode: screen;
  opacity: 0.9;
}

/* ---- vertical RGB phosphor stripes (Trinitron-style aperture grille) ---- */
.mk-phosphor {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background: repeating-linear-gradient(
    90deg,
    rgba(255, 42, 36, 0.07)  0 1px,
    rgba(0, 232, 97, 0.07)   1px 2px,
    rgba(31, 102, 255, 0.07) 2px 3px,
    transparent              3px 4px
  );
  mix-blend-mode: screen;
  opacity: 0.7;
}

/* ---- edge chromatic-aberration vignette: three radials, R/G/B, slightly offset ---- */
.mk-aberration {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 130% 130% at 48% 50%, transparent 55%, rgba(255, 42, 36, 0.22) 100%),
    radial-gradient(ellipse 130% 130% at 50% 50%, transparent 55%, rgba(0, 232, 97, 0.18) 100%),
    radial-gradient(ellipse 130% 130% at 52% 50%, transparent 55%, rgba(31, 102, 255, 0.22) 100%);
  mix-blend-mode: screen;
  opacity: 0.85;
}

/* ---- animated TV snow / static (chunky low-res canvas, scaled up) ---- */
.mk-static {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 4;
  pointer-events: none;
  mix-blend-mode: screen;
  opacity: 0.05;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

/* ---- horizontal tracking bar (sweeps occasionally) ---- */
.mk-tracking {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 14px;
  z-index: 6;
  pointer-events: none;
  background:
    repeating-linear-gradient(0deg,
      rgba(255, 255, 255, 0.55) 0 1px,
      transparent 1px 2px),
    linear-gradient(180deg,
      transparent 0%,
      rgba(255, 255, 255, 0.22) 50%,
      transparent 100%);
  mix-blend-mode: screen;
  opacity: 0;
  transform: translate3d(0, -20px, 0);
  will-change: transform, opacity;
}
body.mk-tracking-fire .mk-tracking {
  animation: mk-track-sweep 820ms linear;
}
@keyframes mk-track-sweep {
  0%   { opacity: 0; transform: translate3d(0, -20px, 0); }
  10%  { opacity: 1; }
  88%  { opacity: 1; }
  100% { opacity: 0; transform: translate3d(0, 100vh, 0); }
}

/* ---- power-on flash (CRT turn-on: thin line expands, fades) ---- */
.mk-poweron {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  background: #ffffff;
  transform-origin: center center;
  transform: scaleY(0);
  opacity: 0;
  animation: mk-power-on 720ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes mk-power-on {
  0%   { transform: scaleY(0);     opacity: 0; }
  6%   { transform: scaleY(0.002); opacity: 1; }
  18%  { transform: scaleY(1);     opacity: 1; }
  55%  { opacity: 0.4; }
  100% { transform: scaleY(1);     opacity: 0; }
}

/* ---- slice glitch — applied to wordmark during burst ---- */
.mk-hero__mark.is-glitching {
  filter: url(#mk-tear);
}

/* ---- corner crop-marks / registration targets ---- */
.mk-crop {
  position: fixed;
  width: 18px;
  height: 18px;
  z-index: 5;
  pointer-events: none;
  color: var(--lime);
  opacity: 0.55;
}
.mk-crop::before,
.mk-crop::after {
  content: "";
  position: absolute;
  background: currentColor;
}
.mk-crop::before { width: 100%; height: 1px; top: 50%; transform: translateY(-50%); }
.mk-crop::after  { width: 1px; height: 100%; left: 50%; transform: translateX(-50%); }
.mk-crop--tl { top: 18px; left: 18px; }
.mk-crop--tr { top: 18px; right: 18px; }
.mk-crop--bl { bottom: 42px; left: 18px; }
.mk-crop--br { bottom: 42px; right: 18px; }

/* ---- fixed top nav ---- */
.mk-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: clamp(1rem, 0.7rem + 1vw, 1.7rem) var(--gutter);
}
.mk-nav::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(5, 5, 7, 0.72), transparent);
  pointer-events: none;
}
.mk-nav__logo {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.9rem;
  letter-spacing: 0.02em;
  color: var(--lime);
  line-height: 1;
  transition: text-shadow 220ms ease, filter 220ms ease;
}
.mk-nav__logo:hover,
.mk-nav__logo:focus-visible {
  outline: none;
  text-shadow:
    -1.6px 0 0 var(--ch-r),
     1.6px 0 0 var(--ch-b);
  filter: drop-shadow(0 0 6px rgba(174, 255, 0, 0.45));
}
.mk-nav__tag {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dim);
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--hair);
  border-radius: 999px;
  background: rgba(5, 5, 7, 0.55);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
@media (max-width: 520px) {
  .mk-nav__tag { font-size: 0.6rem; padding: 0.32rem 0.65rem; letter-spacing: 0.14em; }
}

/* ---- HUD tag (top-left, under nav) ---- */
.mk-hud {
  position: fixed;
  top: clamp(4.4rem, 5vw + 3rem, 5.6rem);
  left: var(--gutter);
  z-index: 18;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  pointer-events: none;
}
.mk-hud__dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ch-r);
  box-shadow: 0 0 8px var(--ch-r);
  animation: mk-blink 1.4s ease-in-out infinite;
}
@keyframes mk-blink {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.25; }
}

/* ---- hero ---- */
.mk-hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  text-align: center;
  padding: var(--gutter);
  position: relative;
  z-index: 2;
}

/* wordmark is fixed-positioned so it persists behind scrolling tiles
   (mirrors heatmap's pattern). JS animates per-channel transforms on
   .mk-ch children, not this wrapper — so the translate(-50%) is safe. */
.mk-hero__mark {
  position: fixed;
  left: 50%;
  top: 50%;
  z-index: 1;
  pointer-events: none;
  display: grid;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(6rem, 42vw, 44rem);
  line-height: 0.9;
  letter-spacing: -0.04em;
  transform: translate(-50%, -50%) scale(0.96);
  opacity: 0;
  transition: opacity 0.8s ease, transform 1.1s cubic-bezier(0.16, 1, 0.3, 1);
}
body.mk-ready .mk-hero__mark {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.mk-ch {
  grid-area: 1 / 1;
  display: block;
  line-height: 1;
  white-space: nowrap;
  mix-blend-mode: screen;
  will-change: transform;
}
/* biased rest pose — visible even before JS runs */
.mk-ch--r { color: var(--ch-r); transform: translate3d(-6px, -3px, 0) rotate(-0.4deg); }
.mk-ch--g { color: var(--ch-g); transform: translate3d( 5px,  4px, 0) rotate( 0.3deg); }
.mk-ch--b { color: var(--ch-b); transform: translate3d( 1px, -5px, 0) rotate( 0.6deg); }

/* ---- scroll cue ---- */
.mk-hero__cue {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  margin-top: 2.5rem;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--dim);
  opacity: 0;
  transition: opacity 0.7s ease 0.6s;
}
body.mk-ready .mk-hero__cue { opacity: 1; }
.cue-arrow {
  display: block;
  width: 18px;
  height: 18px;
}

/* ---- bands — boxed frosted-glass tiles (stacked, mirroring heatmap) ---- */
.mk-band {
  position: relative;
  z-index: 2;
  width: min(820px, calc(100% - 2 * var(--gutter)));
  margin: clamp(3rem, 9vh, 7rem) auto;
  padding: clamp(1.6rem, 3.4vw, 2.6rem);
  border: 1px solid var(--hair);
  border-radius: 18px;
  background: rgba(5, 5, 7, 0.82);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  text-align: left;
  transition:
    border-color 240ms ease,
    box-shadow   240ms ease,
    transform    240ms cubic-bezier(0.16, 1, 0.3, 1);
}
.mk-band:first-of-type { margin-top: clamp(3rem, 9vh, 7rem); }
.mk-band:last-of-type  { margin-bottom: clamp(6rem, 14vh, 10rem); }

.mk-band:hover {
  border-color: var(--lime);
  box-shadow:
    0 0 0 1px var(--lime),
    0 0 28px rgba(174, 255, 0, 0.18);
  transform: translateY(-2px);
}
.mk-band:hover .mk-band__eyebrow {
  text-shadow:
    -1.6px 0 0 var(--ch-r),
     1.6px 0 0 var(--ch-b);
}
.mk-band__eyebrow {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--dim);
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  transition: text-shadow 240ms ease;
}
.mk-band__eyebrow::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ch-r);
  box-shadow: 0 0 8px var(--ch-r);
}
.mk-band__title {
  margin-top: 0.85rem;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.8rem, 1.2rem + 2.4vw, 2.8rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
}
.mk-band__body {
  margin-top: 1.1rem;
  font-size: clamp(0.98rem, 0.94rem + 0.3vw, 1.08rem);
  line-height: 1.6;
  color: rgba(241, 244, 238, 0.84);
  max-width: 56ch;
}

/* ---- broadcast baseline strip (fixed bottom edge) ---- */
.mk-baseline {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 19;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.6rem var(--gutter);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
  background: linear-gradient(0deg, rgba(5, 5, 7, 0.85), rgba(5, 5, 7, 0));
  pointer-events: none;
  white-space: nowrap;
  overflow: hidden;
}
.mk-baseline__group {
  display: inline-flex;
  align-items: center;
  gap: 1.4em;
}
.mk-baseline__sep {
  opacity: 0.4;
}
@media (max-width: 640px) {
  .mk-baseline { font-size: 0.55rem; letter-spacing: 0.16em; }
  .mk-baseline__group { gap: 0.9em; }
  .mk-baseline__hide-sm { display: none; }
}

/* ---- reduced motion — keep static biased rest pose, no jolts, no flicker ---- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .mk-hero__mark {
    opacity: 1; transition: none;
    transform: translate(-50%, -50%);
    filter: none;
  }
  .mk-hero__cue { opacity: 1; transition: none; }
  .mk-hud__dot { animation: none; }
  .mk-static    { display: none; }
  .mk-tracking  { display: none; }
  .mk-poweron   { display: none; }
  /* per-channel rest-pose transforms above already provide the static look */
}