/* shared/ticker.css — TICKER ORGANISM — split from main.css lines 2027-2148. See docs/ for the reorg record. */
/* ===== TICKER ORGANISM =========================================
   Standalone dual-lane horizontal marquee · BEM block: .ticker
   Slot: <section id="ticker"> between #work and #bridge2-positioning
   Header reuses shared .section__eyebrow / __headline / __lede
   Lane 1 scrolls LEFT · Lane 2 scrolls RIGHT
   Animation: JS-driven (assets/js/main.js → tickerMarquee) sets
   --ticker-shift (integer px) + --ticker-duration per lane.
   i18n: ticker_eyebrow · ticker_heading · ticker_lede
================================================================= */

.ticker__lanes {
  display: flex;
  flex-direction: column;
  margin-top: clamp(2.5rem, 4vw, 4rem);
}

.ticker__band {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-top: 1px solid rgba(var(--ink),0.12);
  padding: 0;
}

.ticker__band:last-child {
  border-bottom: 1px solid rgba(var(--ink),0.12);
}

/* Edge fade masks — emerge from black on both sides */
.ticker__band::before,
.ticker__band::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: clamp(3rem, 8vw, 8rem);
  z-index: 2;
  pointer-events: none;
}

.ticker__band::before {
  left: 0;
  background: linear-gradient(to right, var(--color-brand-black) 0%, transparent 100%);
}

.ticker__band::after {
  right: 0;
  background: linear-gradient(to left, var(--color-brand-black) 0%, transparent 100%);
}

/* Scrolling tracks — JS clones the base group to fill the viewport */
.ticker__track {
  display: flex;
  width: max-content;
  will-change: transform;
  align-items: center;
}

.ticker__band--lane1 .ticker__track {
  animation: ticker-left var(--ticker-duration, 28s) linear infinite;
}

.ticker__band--lane2 .ticker__track {
  animation: ticker-right var(--ticker-duration, 28s) linear infinite;
}

/* MARQUEE (decoration spec, exception X-1): a lane holds still while a pointer rests on it, so a logo can be read;
   it resumes when the pointer leaves. Pointer devices only, so a tap never leaves a lane stuck. */
@media (hover: hover) {
  .ticker__band:hover .ticker__track { animation-play-state: paused; }
}

/* Logo group */
.ticker__group {
  display: flex;
  align-items: center;
  gap: clamp(3rem, 5vw, 5.5rem);
  padding-right: clamp(3rem, 5vw, 5.5rem);
}

@media (max-width: 767px) {
  .ticker__group {
    gap: clamp(2rem, 6vw, 3rem);
    padding-right: clamp(2rem, 6vw, 3rem);
  }
}

.ticker__logo {
  display: block;
  flex-shrink: 0;
  height: 112px;
  opacity: 0.55;
  transform: translateZ(0);
  transition: opacity 250ms cubic-bezier(0.4, 0, 0.2, 1);
  cursor: default;
}
/* P-11: 641px is RETAINED (not migrated to a canonical hinge). It is the
   middle step of the marquee logo-size staircase (112 → 144 → 176px at
   641/1024), sized for the logos' own visual rhythm rather than a layout
   hinge — migrating it to 768 would shrink the logos across the 641–767
   band. A documented, deliberate exception, like the track-record grid. */
@media (min-width: 641px) {
  .ticker__logo { height: 144px; }
}
@media (min-width: 1024px) {
  .ticker__logo { height: 176px; }
}

.ticker__logo:hover,
.ticker__logo:focus {
  opacity: 1;
}

/* The logo files are pure white marks on transparency — roughly 95% of every
   file is fully transparent — so on a light ground they disappear and leave
   only their anti-aliased edges. Inverting flips the mark to black and leaves
   alpha untouched, which keeps the seamless look the dark theme has rather
   than boxing the lanes in a black band. */
html[data-theme="light"] .ticker__logo { filter: invert(1); }

/* Keyframes — shift by exactly one base-group width (integer px set by JS) */
@keyframes ticker-left {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(calc(var(--ticker-shift, 0px) * -1), 0, 0); }
}

@keyframes ticker-right {
  from { transform: translate3d(calc(var(--ticker-shift, 0px) * -1), 0, 0); }
  to   { transform: translate3d(0, 0, 0); }
}

/* Accessibility: reduce motion — static, fully visible, no animation */
@media (prefers-reduced-motion: reduce) {
  .ticker__band--lane1 .ticker__track,
  .ticker__band--lane2 .ticker__track {
    animation: none;
    transform: none;
  }
}