/* ============================================
   COMPONENT: Explore sessions (By session length)
   Mobile-first: base = mobile, desktop = min-width: 768px
   ============================================ */

/* Duration badges (Lesson Starter (5 min) style) */
.duration-badge {
  display: inline-block;
  padding: 0.4rem 0.9rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--green-600);
  background: var(--gray-100);
  border: 1px solid var(--gray-300);
  border-radius: 0;
  transition: var(--transition);
  text-decoration: none;
}

a.duration-badge:hover {
  background: var(--green-600);
  color: var(--white);
  border-color: var(--green-600);
}

.duration-badge--card {
  display: inline-block;
  margin-top: 0.5rem;
}

.duration-badge--single {
  margin-top: 0;
}

/* #themes: tighter spacing below intro paragraph */
#themes .section-desc {
  margin-bottom: 0.5rem;
}

/* Explore subheadings (By theme, By session length) */
.explore-subheading {
  margin-top: 0.5rem;
  margin-bottom: 0.35rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-700);
}

.explore-session-length-block {
  margin-top: 1rem;
}

.explore-session-length-block .explore-subheading {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

/* ---- Base = mobile (4-col grid, white cards, image badges) ---- */
.explore-session-cards {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.25rem;
  padding: 0;
  background: transparent;
  border: none;
}

.explore-session-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  justify-content: flex-start;
  min-height: 130px;
  padding: 0.5rem 0.1rem;
  gap: 0.25rem;
  background: var(--white);
  border: none;
  border-radius: 0;
  text-decoration: none;
  color: var(--gray-900);
  transition: var(--transition);
}

.explore-session-card .explore-session-badge {
  order: 1;
  margin-bottom: 0.4rem;
  width: 64px;
  min-width: 64px;
  height: 64px;
  min-height: 64px;
  padding: 0;
  border-radius: 0;
  border: none;
  background: transparent;
  display: flex;
  align-items: stretch;
  justify-content: stretch;
  overflow: hidden;
  box-sizing: border-box;
}

.explore-session-card .explore-session-badge__text {
  display: none;
}

.explore-session-card .explore-session-badge__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.explore-session-card .explore-session-badge__img.is-broken {
  display: none;
}

.explore-session-card .explore-session-badge-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  min-width: 0;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--gray-700);
  background: var(--gray-200);
  border: none;
  border-radius: 0;
}

/* Hide placeholder when image is present. No fallback for older browsers without :has(); optional: add .no-image on server when no img to show placeholder. */
.explore-session-card .explore-session-badge:has(.explore-session-badge__img:not(.is-broken)) .explore-session-badge-placeholder {
  display: none;
}

.explore-session-card .explore-session-text {
  order: 3;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  width: 100%;
  padding: 0 0.1rem;
  align-items: center;
  text-align: center;
}

/* Match theme-link__label: same font size, weight, letter-spacing as theme cards */
.explore-session-card .explore-session-title {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.2;
  white-space: normal;
  min-height: 2.4em;
  color: var(--gray-900);
}

.explore-session-card .explore-session-desc {
  display: none;
}

.explore-session-card .explore-session-status {
  display: none;
}

.explore-session-icon {
  display: none;
}

/* Match theme-link at mobile: same size/weight as theme cards */
@media (max-width: 767px) {
  .explore-session-card .explore-session-title {
    font-size: 0.55rem;
    font-weight: 700;
    letter-spacing: 0.01em;
  }
}

/* ---- Desktop: 2-col, green strip, row layout, text badges ---- */
@media (min-width: 768px) {
  .explore-subheading {
    margin-top: 0.5rem;
    margin-bottom: 0.35rem;
  }

  .explore-session-length-block .explore-subheading {
    margin-top: 0;
  }

  .explore-session-cards {
    margin-top: 0.5rem;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
    padding: 1rem;
    background: var(--green-900);
  }

  .explore-session-card {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 1.25rem;
    padding: 1rem 1.25rem;
    min-height: 0;
    background: rgba(255, 255, 255, 0.04);
    color: var(--white);
  }

  .explore-session-card:hover {
    background: rgba(255, 255, 255, 0.08);
  }

  .explore-session-card .explore-session-badge {
    order: 0;
    margin-bottom: 0;
    width: auto;
    min-width: 4.5rem;
    height: auto;
    min-height: 4.5rem;
    padding: 0;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    color: var(--white);
    background: var(--session-accent, #7c3aed);
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .explore-session-card .explore-session-badge__text {
    display: inline;
  }

  .explore-session-card .explore-session-badge__img,
  .explore-session-card .explore-session-badge-placeholder {
    display: none;
  }

  .explore-session-card .explore-session-text {
    order: 0;
    flex: 1;
    padding: 0;
    align-items: flex-start;
    text-align: left;
  }

  .explore-session-card .explore-session-title {
    font-size: 1.1rem;
    min-height: 0;
    color: inherit;
  }

  .explore-session-card .explore-session-desc {
    display: block;
    font-size: 0.9rem;
    line-height: 1.4;
    color: var(--gray-300);
  }

  .explore-session-card .explore-session-status {
    display: inline;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--session-accent, rgba(255, 255, 255, 0.9));
  }

  .explore-session-card .explore-session-status--live {
    color: var(--session-accent, var(--white));
    animation: explore-live-blink 1.2s ease-in-out infinite;
  }

  .explore-session-icon {
    display: flex;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 0;
    align-items: center;
    justify-content: center;
    color: var(--white);
  }

  .explore-session-icon svg {
    width: 28px;
    height: 28px;
  }
}

@keyframes explore-live-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}