/* ═══ SPEAKING & PUBLICATIONS ═══ */

.talk-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--bdr);
  border: 1px solid var(--bdr);
  border-radius: 6px;
  overflow: hidden;
}

.talk-card {
  background: var(--card);
  display: flex;
  flex-direction: column;
  transition: background .3s;
}

.talk-card:hover {
  background: var(--card-h);
}

.talk-card__thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}

.talk-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s cubic-bezier(.25, 1, .5, 1);
}

.talk-card:hover .talk-card__thumb img {
  transform: scale(1.05);
}

.talk-card__play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, .9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all .3s ease;
  box-shadow: 0 4px 16px rgba(0, 0, 0, .15);
}

.talk-card:hover .talk-card__play {
  opacity: 1;
}

.talk-card__play svg {
  margin-left: 2px;
}

.talk-card__body {
  padding: 1.75rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.talk-card__type {
  font-family: var(--fm);
  font-size: .6rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  display: inline-block;
  padding: .2rem .5rem;
  border-radius: 3px;
  margin-bottom: .75rem;
  width: fit-content;
}

.talk-card__type--tedx {
  color: #dc2626;
  background: rgba(220, 38, 38, .08);
}

.talk-card__type--panel {
  color: var(--a1);
  background: rgba(26, 107, 60, .08);
}

.talk-card__type--podcast {
  color: var(--a2);
  background: rgba(43, 94, 167, .08);
}

.talk-card__title {
  font-family: var(--fd);
  font-size: 1.1rem;
  line-height: 1.3;
  margin-bottom: .5rem;
}

.talk-card__event {
  font-family: var(--fm);
  font-size: .7rem;
  color: var(--t3);
  margin-bottom: .75rem;
  letter-spacing: .03em;
}

.talk-card__desc {
  font-size: .85rem;
  color: var(--t2);
  line-height: 1.65;
  flex: 1;
}

.talk-card__links {
  margin-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.talk-card__link {
  font-family: var(--fm);
  font-size: .65rem;
  letter-spacing: .05em;
  color: var(--t2);
  text-decoration: none;
  padding: .35rem .75rem;
  border: 1px solid var(--bdr);
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  transition: all .3s;
}

.talk-card__link:hover {
  color: var(--a1);
  border-color: var(--a1);
}

/* ═══ PAPER CARD ═══ */
.paper-card {
  background: var(--card);
  border: 1px solid var(--bdr);
  border-radius: 6px;
  padding: 2rem;
  transition: all .3s ease;
}

.paper-card:hover {
  border-color: rgba(43, 94, 167, .2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, .05);
}

.paper-card__type {
  font-family: var(--fm);
  font-size: .6rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--a2);
  background: rgba(43, 94, 167, .08);
  padding: .2rem .5rem;
  border-radius: 3px;
  display: inline-block;
  margin-bottom: 1rem;
}

.paper-card__title {
  font-family: var(--fd);
  font-size: 1.2rem;
  line-height: 1.3;
  margin-bottom: .75rem;
}

.paper-card__authors {
  font-size: .8rem;
  color: var(--t3);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: .4rem;
}

.paper-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: 1rem;
}

.paper-card__tag {
  font-family: var(--fm);
  font-size: .6rem;
  letter-spacing: .04em;
  padding: .2rem .5rem;
  border-radius: 3px;
  border: 1px solid;
}

.paper-card__tag--purple { color: #7c3aed; background: rgba(124, 58, 237, .06); border-color: rgba(124, 58, 237, .15); }
.paper-card__tag--blue { color: #2563eb; background: rgba(37, 99, 235, .06); border-color: rgba(37, 99, 235, .15); }
.paper-card__tag--green { color: var(--a1); background: rgba(26, 107, 60, .06); border-color: rgba(26, 107, 60, .15); }
.paper-card__tag--orange { color: var(--a3); background: rgba(196, 85, 10, .06); border-color: rgba(196, 85, 10, .15); }
.paper-card__tag--pink { color: #db2777; background: rgba(219, 39, 119, .06); border-color: rgba(219, 39, 119, .15); }
.paper-card__tag--cyan { color: #0891b2; background: rgba(8, 145, 178, .06); border-color: rgba(8, 145, 178, .15); }
.paper-card__tag--indigo { color: #4f46e5; background: rgba(79, 70, 229, .06); border-color: rgba(79, 70, 229, .15); }
.paper-card__tag--gray { color: var(--t2); background: rgba(0, 0, 0, .04); border-color: var(--bdr); }

.paper-card__desc {
  font-size: .88rem;
  color: var(--t2);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.paper-card__link {
  font-family: var(--fm);
  font-size: .68rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #fff;
  background: var(--t1);
  text-decoration: none;
  padding: .5rem 1rem;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  transition: all .3s;
}

.paper-card__link:hover {
  background: var(--a2);
}

/* ═══ INVITE TO TALK ═══ */
.invite-talk-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-top: 1.75rem;
  padding: .6rem 1.5rem;
  font-family: var(--fm);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-decoration: none;
  color: #fff;
  -webkit-text-fill-color: #fff;
  background: var(--a3);
  border: 1px solid var(--a3);
  border-radius: 4px;
  transition: all .3s ease;
}

.invite-talk-btn:hover {
  background: var(--a2);
  border-color: var(--a2);
  transform: translateY(-2px);
}

/* ═══ IMAGE CAROUSEL ═══ */
.img-carousel {
  position: relative;
  overflow: hidden;
  border-radius: 6px;
  border: 1px solid var(--bdr);
}

.img-carousel__track {
  display: flex;
  transition: transform .5s cubic-bezier(.25, 1, .5, 1);
  gap: 1rem;
}

.img-carousel__slide {
  flex: 0 0 calc(25% - .75rem);
  border-radius: 6px;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.img-carousel__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}

.img-carousel__slide:hover img {
  transform: scale(1.05);
}

.img-carousel__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--bdr);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--t1);
  transition: all .3s;
  z-index: 2;
  font-size: 1rem;
}

html[data-theme="dark"] .img-carousel__btn {
  background: rgba(30, 30, 30, .85);
}

.img-carousel__btn:hover {
  background: var(--card);
  box-shadow: 0 4px 16px rgba(0, 0, 0, .1);
}

.img-carousel__btn--prev { left: .75rem; }
.img-carousel__btn--next { right: .75rem; }

@media(max-width:900px) {
  .talk-grid {
    grid-template-columns: 1fr;
  }

  .img-carousel__slide {
    flex: 0 0 calc(33.33% - .67rem);
  }
}

@media(max-width:600px) {
  .img-carousel__slide {
    flex: 0 0 calc(50% - .5rem);
  }

  .talk-card__body {
    padding: 1.25rem 1rem;
  }

  .paper-card {
    padding: 1.5rem;
  }

  .paper-card__title {
    font-size: 1.05rem;
  }
}