*, *::before, *::after { box-sizing: border-box; }
  html, body { height: 100%; }
  body {
    margin: 0;
    background: var(--ink);
    color: var(--ink);
    font-family: var(--font-read);
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
  }

  /* ============ THE SPLIT — locked 50 / 50 ============ */
  .split { position: fixed; inset: 0; display: flex; }
  .half {
    position: relative;
    flex: 1 1 50%;
    min-width: 0;
    overflow: hidden;
    text-decoration: none;
    border: 0;
    display: block;
    cursor: pointer;
    outline: none;
    transition: flex-basis var(--dur-slow) var(--ease-ink),
                filter var(--dur-slow) var(--ease-ink),
                opacity var(--dur-slow) var(--ease-ink),
                background var(--dur-base) var(--ease-ink);
  }
  .half:focus-visible { outline: var(--border-blood); outline-offset: -8px; }

  .half--left  { background: var(--paper); color: var(--ink); }
  .half--right { background: var(--ink);   color: var(--paper); }

  /* subtle confirm wash on hover */
  .half--left:hover  { background: var(--paper-pure); }
  .half--right:hover { background: #0e0c0a; }

  /* hover slides the split open (no dimming of the other side) */
  .split:has(.half--left:hover)  .half--left,
  .split:has(.half--right:hover) .half--right { flex-basis: 54%; }
  .split:has(.half--left:hover)  .half--right,
  .split:has(.half--right:hover) .half--left {
    flex-basis: 46%;
  }

  /* ============ CONTENT ============ */
  .stage {
    position: absolute; inset: 0;
    display: flex; flex-direction: column;
    justify-content: center;
    padding: clamp(28px, 6vw, 92px);
    z-index: 3;
  }
  .half--right .stage { align-items: flex-end; text-align: right; }

  .kicker {
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.34em;
    font-size: var(--step--2);
    font-weight: 700;
    margin-bottom: var(--space-md);
    transition: color var(--dur-base) var(--ease-ink);
  }
  .half--left  .kicker { color: var(--ink-faint); }
  .half--right .kicker { color: rgba(243,237,224,0.55); }
  .half:hover .kicker { color: var(--blood); }

  .title {
    font-family: var(--font-display);
    font-weight: 800;
    line-height: 0.86;
    letter-spacing: -0.02em;
    font-size: clamp(1.5rem, 3.7vw, 3.7rem); /* fixed, identical on both sides */
    margin: 0;
    text-transform: uppercase;
    white-space: nowrap;
  }
  .half--left  .title { color: var(--ink); }
  .half--right .title { color: var(--paper); }
  .title .amp {
    display: block;
    font-style: italic;
    font-weight: 500;
    color: var(--blood);
  }

  .cta {
    margin-top: var(--space-xl);
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.22em;
    font-size: var(--step--1);
    font-weight: 700;
    display: inline-flex; align-items: center; gap: 0.7em;
    transition: color var(--dur-base) var(--ease-ink);
  }
  .half--left  .cta { color: var(--ink-soft); }
  .half--right .cta { color: rgba(243,237,224,0.78); }
  .half:hover .cta { color: var(--blood); }
  .cta .arr { transition: transform var(--dur-base) var(--ease-snap); }
  .half:hover .cta .arr { transform: translateX(7px); }

  /* ============ CENTER HINGE — the shared & ============ */
  .seam {
    position: fixed;
    top: 0; bottom: 0; left: 50%;
    width: 1px;
    transform: translateX(-50%);
    z-index: 5;
    pointer-events: none;
    transition: left var(--dur-slow) var(--ease-ink);
  }
  .split:has(.half--left:hover)  .seam { left: 54%; }
  .split:has(.half--right:hover) .seam { left: 46%; }
  .seam::before {
    content: "";
    position: absolute; top: 0; bottom: 0; left: 0; width: 1px;
    background: repeating-linear-gradient(180deg, var(--paper) 0 7px, transparent 7px 14px);
    opacity: 0.35;
  }
  .badge {
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: clamp(56px, 6vw, 84px);
    height: clamp(56px, 6vw, 84px);
    border-radius: 50%;
    background: var(--ink);
    border: 3px solid var(--paper);
    box-shadow: var(--shadow-print-blood);
    display: grid; place-items: center;
    color: var(--paper);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.25rem, 2.7vw, 2.13rem);
    line-height: 1;
    letter-spacing: -0.02em;
    white-space: nowrap;
  }
  .badge .amp2 { color: var(--blood); font-style: italic; font-weight: 500; padding: 0 0.02em; }

  /* intro load-in animation removed (no redaction-wipe) — content renders immediately */

  /* ============ STACK ON NARROW / MOBILE ============ */
  @media (max-aspect-ratio: 9/10), (max-width: 720px) {
    .split { flex-direction: column; }
    .half--right .stage { align-items: flex-start; text-align: left; }
    .seam { left: 0; right: 0; top: 50%; bottom: auto; width: auto; height: 1px; transform: translateY(-50%); }
    .seam::before {
      top: 0; bottom: auto; left: 0; right: 0; width: auto; height: 1px;
      background: repeating-linear-gradient(90deg, var(--paper) 0 7px, transparent 7px 14px);
    }
    /* no slide / no drain when stacked on mobile — both stay full & equal */
    .split:has(.half--left:hover)  .half--left,
    .split:has(.half--right:hover) .half--right,
    .split:has(.half--left:hover)  .half--right,
    .split:has(.half--right:hover) .half--left { flex-basis: 50%; filter: none; opacity: 1; }
    .split:has(.half:hover) .seam { left: 0; }
  }