/* Lecture Cards Section */
.lecture-cards {
  padding: 60px 40px 100px;
  background-color: var(--color-background);
}

.lecture-cards-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.lecture-cards-header {
  text-align: center;
  margin-bottom: 60px;
}

.lecture-cards-label {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.lecture-cards-title {
  font-family: "Zen Old Mincho", serif;
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 500;
  letter-spacing: 0.08em;
  margin-bottom: 24px;
}

.lecture-cards-desc {
  font-size: 15px;
  line-height: 2;
  color: var(--color-muted);
  letter-spacing: 0.04em;
}

.lecture-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.lecture-card {
  background-color: var(--color-surface);
  border-radius: 12px;
  padding: 28px 28px;
  transition: transform 0.6s ease-out, box-shadow 0.6s ease-out;
}

.lecture-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.lecture-card-title {
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-text);
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.lecture-card-title > span {
  font-size: 65%;
  font-weight: 400;
  display: inline-block;
}

.lecture-card-list {
  list-style: none;
}

.lecture-card-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.8;
  letter-spacing: 0.04em;
  color: var(--color-text);
  margin-bottom: 12px;
}

.lecture-card-list li:last-child {
  margin-bottom: 0;
}

.lecture-card-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

/* Lecture Photos Gallery */
.lecture-photos {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-top: 60px;
}

.lecture-photos-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.lecture-photos-group-title {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  text-align: center;
}

.lecture-photos-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 8px;
  justify-content: center;
}

.lecture-photo {
  height: auto;
  width: auto;
  max-height: 200px;
  object-fit: contain;
  border-radius: 8px;
  flex-shrink: 0;
}

/* Lecture Record Links */
.lecture-record-links {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 16px;
  margin-top: 40px;
  justify-content: center;
}

.lecture-record-btn {
  display: inline-block;
  padding: 18px 60px;
  border: none;
  border-radius: 999px;
  color: var(--color-background);
  background-color: var(--color-accent);
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: background-color 0.6s ease-out, transform 0.3s ease-out;
}

.lecture-record-btn:hover {
  background-color: var(--color-secondary);
  transform: translateY(-2px);
}

.lecture-record-btn:active {
  transform: translateY(0);
}

@media (max-width: 800px) {
  .lecture-cards {
    padding: 40px 0px 80px;
  }

  .lecture-cards {
    padding: 40px 0px 80px;
  }

  .lecture-record-links {
    flex-direction: column;
  }

  .lecture-record-btn {
    padding: 8px 30px;
  }

  .lecture-cards-header {
    margin-bottom: 40px;
  }

  .lecture-cards-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 0 20px;
  }

  .lecture-card {
    padding: 32px 24px;
  }

  .lecture-card-title {
    font-size: 18px;
  }
  .lecture-card-title > span {
    font-size: 85%;
  }
}

@media (max-width: 1080px) {
  .lecture-photos-row {
    flex-wrap: nowrap;
    width: 100%;
    min-width: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding: 0 8px 4px 8px;
    justify-content: start;
  }

  .lecture-photo {
    flex-shrink: 0;
    width: auto;
    height: 116px;
    object-fit: unset;
    scroll-snap-align: start;
  }
}

@media (max-width: 1084px) and (hover: hover) and (pointer: fine) {
  .lecture-photos-row {
    scrollbar-width: thin;
    scrollbar-color: var(--color-accent) var(--color-border);
    padding-bottom: 12px;
  }

  .lecture-photos-row::-webkit-scrollbar {
    height: 4px;
  }

  .lecture-photos-row::-webkit-scrollbar-track {
    background: var(--color-border);
    border-radius: 2px;
  }

  .lecture-photos-row::-webkit-scrollbar-thumb {
    background: var(--color-accent);
    border-radius: 2px;
  }
}