/* ══ SECTION ════════════════════════════════ */
.block-aicurriculum {
  position: relative;
  width: 100%;
  overflow: hidden;
  isolation: isolate;
}

/* Ambient background orb */
.block-aicurriculum::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(70,30,160,0.18) 0%, transparent 65%);
  top: 50%;
  left: 15%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 0;
}

/* ══ INNER LAYOUT ═══════════════════════════ */
.block-aicurriculum-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: 48px;
  padding: 64px 48px;
}

/* ══ LEFT ═══════════════════════════════════ */
.block-aicurriculum-left {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-right: 16px;
}

.block-aicurriculum-sectiontitle {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2.6rem, 5vw, 4rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.03em;
  line-height: 1.0;
}


/* ══ RIGHT: GRID ════════════════════════════ */
.block-aicurriculum-right {
  overflow: visible;
}

.block-aicurriculum-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

/* ══ CARD ═══════════════════════════════════ */
.block-aicurriculum-card {
  position: relative;
  border-radius: 20px;
  min-height: 180px;
  overflow: hidden;
  isolation: isolate;
  cursor: pointer;
  background: #0e0b1e;
  border: 1px solid rgba(255,255,255,0.06);
  transition: transform .3s cubic-bezier(.22,.6,.36,1), border-color .3s, box-shadow .3s;
  animation: card-in 0.5s ease both;
}

.block-aicurriculum-card:nth-child(1){ animation-delay:.04s }
.block-aicurriculum-card:nth-child(2){ animation-delay:.09s }
.block-aicurriculum-card:nth-child(3){ animation-delay:.14s }
.block-aicurriculum-card:nth-child(4){ animation-delay:.19s }
.block-aicurriculum-card:nth-child(5){ animation-delay:.24s }
.block-aicurriculum-card:nth-child(6){ animation-delay:.29s }

@keyframes card-in {
  from { opacity:0; transform:translateY(16px); }
  to   { opacity:1; transform:translateY(0); }
}

.block-aicurriculum-card:hover {
  transform: translateY(-4px);
  border-color: rgba(160,120,255,0.3);
  box-shadow: 0 16px 48px rgba(80,40,180,0.25), 0 0 0 1px rgba(160,120,255,0.12);
}

/* Background image layer */
.card-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 6s ease;
  z-index: 0;
}
.block-aicurriculum-card:hover .card-bg {
  transform: scale(1.06);
}

/* Overlay */
.block-aicurriculum-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(160deg,
      rgba(8,5,20,0.82) 0%,
      rgba(8,5,20,0.55) 50%,
      rgba(8,5,20,0.35) 100%
    );
  transition: background .3s;
}
.block-aicurriculum-card:hover .block-aicurriculum-overlay {
  background:
    linear-gradient(160deg,
      rgba(30,10,70,0.75) 0%,
      rgba(20,8,50,0.5) 50%,
      rgba(8,5,20,0.25) 100%
    );
}

/* No-image card base */
.block-aicurriculum-card.no-image .block-aicurriculum-overlay {
  background: transparent;
}

/* Subtle inner glow on hover */
.block-aicurriculum-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 20px;
  background: radial-gradient(ellipse 60% 50% at 20% 20%, rgba(130,80,255,0.1), transparent);
  opacity: 0;
  transition: opacity .3s;
  z-index: 2;
  pointer-events: none;
}
.block-aicurriculum-card:hover::after {
  opacity: 1;
}

/* ── Card Content ──────────────────────────── */
.block-aicurriculum-cardcontent {
  position: relative;
  z-index: 3;
  padding: 24px 22px;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.block-aicurriculum-partlabel {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(180,155,255,0.55);
  margin-bottom: 6px;
  transition: color .2s;
}
.block-aicurriculum-card:hover .block-aicurriculum-partlabel {
  color: rgba(200,175,255,0.75);
}

.block-aicurriculum-parttitle {
  font-family: 'Syne', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 6px;
  transition: color .2s;
}

/* ══ SUBTITLE HOVER REVEAL ═════════════════ */

.block-aicurriculum-partsubtitle.subtitle-reveal {
  opacity: 0;
  transform: translateY(8px);
  max-height: 0;
  overflow: hidden;
  filter: blur(6px);
  transition:
    opacity .35s ease,
    transform .35s cubic-bezier(.22,.6,.36,1),
    filter .35s ease,
    max-height .4s ease;
}

/* show on hover */
.block-aicurriculum-card:hover .block-aicurriculum-partsubtitle.subtitle-reveal {
  opacity: 1;
  transform: translateY(0);
  max-height: 60px; /* enough for 2 lines */
  filter: blur(0);
}

/* optional: title shift slightly for better motion feel */
.block-aicurriculum-parttitle {
  transition: transform .3s ease;
}

.block-aicurriculum-card:hover .block-aicurriculum-parttitle {
  transform: translateY(-2px);
}

/* optional: make label slightly fade when subtitle shows */
.block-aicurriculum-card:hover .block-aicurriculum-partlabel {
  opacity: 0.85;
}

/* ══ RESPONSIVE ═════════════════════════════ */
@media (max-width: 900px) {
  .block-aicurriculum-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 48px 0;
  }
  .block-aicurriculum-subtitle { max-width: 100%; }
}
@media (max-width: 640px) {
  .block-aicurriculum-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}
@media (max-width: 420px) {
  .block-aicurriculum-grid {
    grid-template-columns: 1fr !important;
  }
}