/* ==========================================================================
   Lambda Phi Epsilon — Alpha Xi Chapter
   LogoLoop — vanilla port of the React Bits component of the same name.
   Structural CSS is the reference's; only the palette is the chapter's.
   Self-contained: every selector below is namespaced .logoloop*.
   ========================================================================== */

.logoloop {
  position: relative;
  overflow: hidden;

  --logoloop-gap: 68px;
  --logoloop-logoHeight: 30px;
  /* The band sits on the paper section, so the edge fade defaults to --paper.
     Override per-instance with the fadeOutColor option, which sets
     --logoloop-fadeColor inline. */
  --logoloop-fadeColorAuto: var(--paper, #FAFBFD);
  --logoloop-wordmark-color: var(--navy-700, #12296B);
}

.logoloop--vertical {
  height: 100%;
  display: inline-block;
}

.logoloop--scale-hover {
  padding-top: calc(var(--logoloop-logoHeight) * 0.1);
  padding-bottom: calc(var(--logoloop-logoHeight) * 0.1);
}

/* ---- Track + lists ------------------------------------------------------ */

.logoloop__track {
  display: flex;
  width: max-content;
  will-change: transform;
  user-select: none;
  -webkit-user-select: none;
  position: relative;
  z-index: 0;
}

.logoloop--vertical .logoloop__track {
  flex-direction: column;
  height: max-content;
  width: 100%;
}

.logoloop__list {
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
}

.logoloop--vertical .logoloop__list { flex-direction: column; }

.logoloop__item {
  flex: 0 0 auto;
  margin-right: var(--logoloop-gap);
  margin-bottom: 0;   /* the site's global `li` margin must not enter the strip */
  font-size: var(--logoloop-logoHeight);
  line-height: 1;
}

.logoloop--vertical .logoloop__item { margin-right: 0; margin-bottom: var(--logoloop-gap); }
.logoloop__item:last-child { margin-right: var(--logoloop-gap); }
.logoloop--vertical .logoloop__item:last-child { margin-right: 0; margin-bottom: var(--logoloop-gap); }

.logoloop__node { display: inline-flex; align-items: center; }

.logoloop__item img {
  height: var(--logoloop-logoHeight);
  width: auto;
  max-width: none;   /* overrides the site's global `img { max-width: 100% }` */
  display: block;
  object-fit: contain;
  image-rendering: -webkit-optimize-contrast;
  -webkit-user-drag: none;
  pointer-events: none;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Typographic wordmark (used until a real logo file is supplied) ------
   Boxed to the same height a logo would occupy so mixed rows keep one optical
   baseline, and set in three sizes so a two-letter mark and a four-word one
   carry the same visual weight. */

.logoloop__wordmark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: var(--logoloop-logoHeight);
  min-width: calc(var(--logoloop-logoHeight) * 1.5);
  white-space: nowrap;
  font-family: var(--font-body, "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif);
  font-size: calc(var(--logoloop-logoHeight) * 0.46);
  font-weight: 600;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.155em;
  /* letter-spacing adds a trailing gap after the last glyph; the matching
     indent puts the string back on the optical centre. */
  text-indent: 0.155em;
  color: var(--logoloop-wordmark-color);
  opacity: 0.66;
  transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* "TD", "EY", "BMO", "PwC", "AMD", "KPMG", "Onex", "Bell" */
.logoloop__wordmark--short {
  font-size: calc(var(--logoloop-logoHeight) * 0.56);
  letter-spacing: 0.2em;
  text-indent: 0.2em;
  min-width: calc(var(--logoloop-logoHeight) * 1.7);
}

/* "JPMorgan Chase & Co.", "Purpose Investments" */
.logoloop__wordmark--long {
  font-size: calc(var(--logoloop-logoHeight) * 0.4);
  letter-spacing: 0.12em;
  text-indent: 0.12em;
}

/* Unidentified entry in data/logos.js — visibly a placeholder, quietly. */
.logoloop__wordmark--todo {
  padding: 0 0.75em;
  border: 1px dashed var(--navy-200, #C6D2F2);
  border-radius: var(--radius, 4px);
  color: var(--ink-mute, #78829E);
  opacity: 0.55;
}

/* ---- Hover ------------------------------------------------------------- */

.logoloop--scale-hover .logoloop__item { overflow: visible; }

.logoloop--scale-hover .logoloop__item:hover img,
.logoloop--scale-hover .logoloop__item:hover .logoloop__node {
  transform: scale(1.2);
  transform-origin: center center;
}

/* Type reads larger than a mark at the same scale, so wordmarks lift less
   and gain their colour back instead. */
.logoloop--scale-hover .logoloop__item:hover .logoloop__wordmark {
  transform: scale(1.12);
  transform-origin: center center;
  opacity: 1;
  color: var(--navy-700, #12296B);
}

.logoloop--scale-hover .logoloop__node,
.logoloop--scale-hover .logoloop__wordmark {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.logoloop__link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  border-radius: var(--radius, 4px);
  transition: opacity 0.2s ease;
}

.logoloop__link:hover { opacity: 0.8; }
.logoloop__link:focus-visible { outline: 2px solid var(--navy-500, #2A50B4); outline-offset: 2px; }

/* ---- Edge fade --------------------------------------------------------- */

.logoloop--fade::before,
.logoloop--fade::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: clamp(24px, 8%, 120px);
  pointer-events: none;
  z-index: 10;
}

.logoloop--fade::before {
  left: 0;
  background: linear-gradient(to right, var(--logoloop-fadeColor, var(--logoloop-fadeColorAuto)) 0%, rgba(250, 251, 253, 0) 100%);
}

.logoloop--fade::after {
  right: 0;
  background: linear-gradient(to left, var(--logoloop-fadeColor, var(--logoloop-fadeColorAuto)) 0%, rgba(250, 251, 253, 0) 100%);
}

.logoloop--vertical.logoloop--fade::before,
.logoloop--vertical.logoloop--fade::after {
  left: 0;
  right: 0;
  width: 100%;
  height: clamp(24px, 8%, 120px);
}

.logoloop--vertical.logoloop--fade::before {
  top: 0;
  bottom: auto;
  background: linear-gradient(to bottom, var(--logoloop-fadeColor, var(--logoloop-fadeColorAuto)) 0%, rgba(250, 251, 253, 0) 100%);
}

.logoloop--vertical.logoloop--fade::after {
  bottom: 0;
  top: auto;
  background: linear-gradient(to top, var(--logoloop-fadeColor, var(--logoloop-fadeColorAuto)) 0%, rgba(250, 251, 253, 0) 100%);
}

/* ---- Reduced motion -----------------------------------------------------
   The reference simply freezes the track, which leaves the strip clipped
   mid-item. Instead the single visible sequence wraps into a centred static
   row so every company is readable with no motion at all. The JS drops the
   copy count to 1 as well; the aria-hidden rule below covers the case where
   the preference flips before the JS notices. */

@media (prefers-reduced-motion: reduce) {
  .logoloop {
    overflow: visible;
    height: auto !important;
  }

  .logoloop__track {
    transform: translate3d(0, 0, 0) !important;
    flex-wrap: wrap;
    flex-direction: row;
    justify-content: center;
    width: 100%;
    will-change: auto;
  }

  .logoloop__list {
    flex-wrap: wrap;
    flex-direction: row;
    justify-content: center;
    width: 100%;
  }

  .logoloop__list[aria-hidden="true"] { display: none; }

  .logoloop__item,
  .logoloop--vertical .logoloop__item,
  .logoloop__item:last-child,
  .logoloop--vertical .logoloop__item:last-child {
    margin: calc(var(--logoloop-gap) * 0.22) calc(var(--logoloop-gap) * 0.5);
  }

  .logoloop--fade::before,
  .logoloop--fade::after { display: none; }

  .logoloop__item img,
  .logoloop__node,
  .logoloop__wordmark { transition: none !important; }

  .logoloop--scale-hover .logoloop__item:hover img,
  .logoloop--scale-hover .logoloop__item:hover .logoloop__node,
  .logoloop--scale-hover .logoloop__item:hover .logoloop__wordmark { transform: none; }
}

/* ---- Bright strip -------------------------------------------------------
   The employer marks are dark-on-light artwork; the strip stays bright in
   BOTH themes so the names never sink into a dark ground. The edge fade is
   pinned to the same bright tone. */
.logoloop {
  /* Light impression: no tape at all — the marks simply flow across the
     section's own ground. The dark impression adds a blue tape below. */
  background: transparent;
  --logoloop-fadeColorAuto: var(--paper-2, #F0EBDC);
  padding-block: 1.1rem;
  border-block: none;
}

/* In the dark impression there is no tape either. The marks are dark artwork,
   so instead of a light band behind them they are knocked out to the page's
   own parchment ink and flow straight across the ground — one monochrome
   register, which suits the plate better than a strip of colour ever did. */
[data-theme="dark"] .logoloop {
  background: transparent;
  --logoloop-fadeColorAuto: var(--paper);
  border-block: none;
  padding-block: 1.6rem;
}

[data-theme="dark"] .logoloop__item img {
  filter: brightness(0) invert(1);
  opacity: 0.82;
}

[data-theme="dark"] .logoloop__item img:hover { opacity: 1; }