/* ============================================
   TOP SPEAKERS — horizontal scroll carousel
   Cards overflow the right edge and scroll.
   Drag-to-scroll is enabled by JS, which toggles
   the .is-dragging class on the track.
   ============================================ */

.top-speakers {
  padding: 10rem 0 10rem 10rem;   /* no right padding — cards bleed off-screen */
  overflow: hidden;
}

.top-speakers__inner {
  width: 100%;
  max-width: 148rem;
  margin: 0 auto;
}

/* ============================================
   HEADER
   ============================================ */

.top-speakers__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
  padding-right: 10rem;           /* keeps the button inside the viewport */
}

.top-speakers__title {
  font-size: 6rem;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.05em;
  color: var(--color-white);
  margin: 0;
}

.top-speakers__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 1.5rem 4rem;
  border-radius: 11.6rem;
  font-size: 1.6rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-brand);
  color: var(--color-white);
  white-space: nowrap;
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.top-speakers__btn:hover {
  transform: translateY(-0.1rem);
  box-shadow: 0 1rem 3rem rgba(139, 92, 246, 0.35);
  filter: brightness(1.05);
}

/* ============================================
   SCROLL TRACK
   ============================================ */

.top-speakers__track {
  display: flex;
  gap: 2rem;

  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;

  /* Cancel the inner's right-hand centring gap so cards run to the viewport edge */
  margin-right: calc(-1 * (100vw - 10rem - 100%) / 2);

  padding-right: 10rem;           /* breathing room at the end of the scroll */
  padding-bottom: 1rem;

  cursor: grab;

  /* Hide the scrollbar but keep it scrollable */
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.top-speakers__track::-webkit-scrollbar {
  display: none;
}

/* While dragging: snap off (it fights the drag), no text/image selection */
.top-speakers__track.is-dragging {
  cursor: grabbing;
  scroll-snap-type: none;
  user-select: none;
}

.top-speakers__track.is-dragging img {
  pointer-events: none;           /* stops the browser's native image drag */
}

/* ============================================
   CONTROLS (ARROWS — below track)
   ============================================ */

.top-speakers__controls {
  display: flex;
  justify-content: flex-end;
  gap: 1.6rem;
  margin-top: 2rem;
  padding-right: 10rem;
}

.top-speakers__arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;

  width: 6rem;
  height: 6rem;
  border-radius: 50%;

  background: linear-gradient(90deg, #8B5CF6 0%, #FF6B2D 100%);
  border: none;
  color: var(--color-white);
  cursor: pointer;

  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

/* Previous button — frosted glass instead of gradient */
.top-speakers__arrow--prev {
  background: rgba(255, 255, 255, 0.08);
  border: 0.1rem solid rgba(255, 255, 255, 0.2);
  -webkit-backdrop-filter: blur(1.4rem);
  backdrop-filter: blur(1.4rem);
}

.top-speakers__arrow:hover:not([disabled]) {
  transform: translateY(-0.2rem);
  box-shadow: 0 1rem 3rem rgba(139, 92, 246, 0.45);
}

.top-speakers__arrow--prev:hover:not([disabled]) {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.35);
  box-shadow: none;
}

.top-speakers__arrow svg {
  width: 2.6rem;
  height: 2.6rem;
}

.top-speakers__arrow[disabled] {
  opacity: 0.25;
  cursor: default;
}

/* ============================================
   CARD
   ============================================ */

.tspeaker {
  flex: 0 0 36rem;                /* ~4 visible at 1920, 4th partly cut off */
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  text-align: center;
}

.tspeaker__photo {
  width: 100%;
  aspect-ratio: 3 / 4;
  border-radius: 2rem;
  overflow: hidden;
  background: #0D1018;
  margin-bottom: 2rem;
}

.tspeaker__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.tspeaker__name {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin: 0 0 0.8rem;
}

.tspeaker__role {
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1.35;
  color: rgba(255, 255, 255, 0.55);
  margin: 0;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1280px) {
  .top-speakers {
    padding: 8rem 0 8rem 6rem;
  }

  .top-speakers__header,
  .top-speakers__controls,
  .top-speakers__track {
    padding-right: 6rem;
  }

  .top-speakers__track {
    margin-right: calc(-1 * (100vw - 6rem - 100%) / 2);
  }

  .top-speakers__title {
    font-size: 5rem;
  }

  .tspeaker {
    flex: 0 0 32rem;
  }
}

@media (max-width: 700px) {
  .top-speakers {
    padding: 6rem 0 6rem 3rem;
  }

  .top-speakers__header,
  .top-speakers__track {
    padding-right: 3rem;
  }

  .top-speakers__header {
    gap: 2rem;
    margin-bottom: 3rem;
  }

  .top-speakers__controls {
    display: none;   /* touch swipe is enough */
  }

  .top-speakers__track {
    margin-right: calc(-1 * (100vw - 3rem - 100%) / 2);
  }

  .top-speakers__title {
    font-size: 4.4rem;
  }

  .top-speakers__btn {
    font-size: 1.9rem;
  }

  .tspeaker {
    flex: 0 0 26rem;
  }

  .tspeaker__name {
    font-size: 2.2rem;
  }

  .tspeaker__role {
    font-size: 1.8rem;
  }
}