/* ==========================================================================
   My Travel — partners marquee
   REPLACE assets/css/partners.css entirely.
   Delete any leftover .partner / .partners rules in styles.css — two
   competing blocks is what broke the arrows before.
   ========================================================================== */

.partners {
  position: relative;
  --per-view: 2;
  --gap: 12px;
}

@media (min-width: 576px) { .partners { --per-view: 3; --gap: 16px; } }
@media (min-width: 768px) { .partners { --per-view: 4; --gap: 20px; } }
@media (min-width: 992px) { .partners { --per-view: 5; --gap: 24px; } }

/* --- Viewport -----------------------------------------------------------
   Created by the JS, so the page markup does not change. It clips the row
   while leaving the arrows outside the clip.

   touch-action: pan-y tells the browser we handle horizontal gestures and
   it keeps vertical page scrolling — without this a swipe up on the row
   would be swallowed.
   ------------------------------------------------------------------------ */

.partners__viewport {
  overflow: hidden;
  touch-action: pan-y;
  cursor: grab;
}

.partners__viewport.is-dragging {
  cursor: grabbing;
  user-select: none;
}

/* --- Track --------------------------------------------------------------
   Moved with transform rather than scrollLeft. scrollLeft is rounded to
   device pixels, which turns a slow drift into a stutter; a transform is
   sub-pixel accurate and composited on the GPU.
   ------------------------------------------------------------------------ */

.partners__track {
  display: flex;
  gap: var(--gap);
  padding-block: 16px;
  will-change: transform;
  backface-visibility: hidden;
}

.partners__item {
  flex: 0 0 calc((100% - (var(--per-view) - 1) * var(--gap)) / var(--per-view));
  min-width: 0;
}

/* --- Card --------------------------------------------------------------- */

.partner {
  display: grid;
  place-items: center;
  height: 100%;
  min-height: 96px;
  padding: 16px 20px;
  background-color: #fff;
  border: 1px solid var(--mt-line, #e6e9ef);
  border-radius: var(--mt-radius, 16px);
  text-decoration: none;
  transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
}

/* Logos arrive at their own aspect ratio, so cap both axes and let the
   smaller constraint win. A fixed height leaves square logos tiny. */
.partner img {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 52px;
  object-fit: contain;
  pointer-events: none;          /* never let the browser drag the image */

  /* Muted by default, full colour on hover. Keeps a mixed logo pack looking
     like one set instead of a ransom note. */
  filter: grayscale(1);
  opacity: .6;
  transition: filter .3s ease, opacity .3s ease;
}

@media (hover: hover) {
  .partner:hover {
    border-color: transparent;
    box-shadow: 0 12px 32px rgba(31, 39, 72, .10);
    transform: translateY(-4px);
  }

  .partner:hover img {
    filter: grayscale(0);
    opacity: 1;
  }
}

/* Keyboard users get the same reveal */
a.partner:focus-visible {
  outline: 3px solid var(--mt-brand, #ee4757);
  outline-offset: 3px;
}

a.partner:focus-visible img {
  filter: grayscale(0);
  opacity: 1;
}

/* Touch has no hover, so colour everything rather than leaving a phone
   user with a permanently grey row */
@media (hover: none) {
  .partner img { filter: grayscale(0); opacity: 1; }
}

/* --- Edge fade ----------------------------------------------------------
   Signals the row continues past the viewport. pointer-events: none so it
   never blocks a click on a logo beneath.
   ------------------------------------------------------------------------ */

.partners::before,
.partners::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  z-index: 2;
  width: 56px;
  pointer-events: none;
}

.partners::before {
  left: 0;
  background: linear-gradient(90deg, #fff 10%, rgba(255, 255, 255, 0) 100%);
}

.partners::after {
  right: 0;
  background: linear-gradient(270deg, #fff 10%, rgba(255, 255, 255, 0) 100%);
}

@media (max-width: 575.98px) {
  .partners::before,
  .partners::after { width: 28px; }
}

/* --- Arrows -------------------------------------------------------------- */

.partners__btn {
  position: absolute;
  top: 50%;
  z-index: 4;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  translate: 0 -50%;
  border: 1px solid var(--mt-line, #e6e9ef);
  border-radius: 50%;
  background-color: #fff;
  color: var(--mt-ink, #1f2748);
  box-shadow: 0 4px 16px rgba(31, 39, 72, .14);
  cursor: pointer;
  transition: background-color .2s ease, color .2s ease;
}

.partners__btn:hover {
  background-color: var(--mt-brand, #ee4757);
  border-color: var(--mt-brand, #ee4757);
  color: #fff;
}

.partners__btn--prev { left: -6px; }
.partners__btn--next { right: -6px; }

@media (min-width: 1200px) {
  .partners__btn--prev { left: -20px; }
  .partners__btn--next { right: -20px; }
}

@media (max-width: 575.98px) {
  .partners__btn { display: none; }
}

/* A looping row has no start or end, so a progress bar would be a lie. */
.partners__progress { display: none; }