/* ============================================
   EDUCATION SECTION
   ============================================ */
.edu { padding: 56px 32px; background: var(--c-n100); border-radius: 24px; border: 1px solid var(--bdr); margin: 24px 24px 0; overflow: hidden; }
.edu-inner { max-width: 1400px; margin: 0 auto; }
.edu-inner .sec-hdr {
  text-align: left;
  justify-content: flex-start;
  align-items: flex-start;
  flex-direction: column;
  margin-bottom: 28px;
}
.edu-inner .sec-title { text-align: left; }
.edu-inner .sec-over  { text-align: left; }
.edu-g { display: grid; gap: 20px; }
.edu-g--1 { grid-template-columns: 1fr; }
.edu-g--2 { grid-template-columns: repeat(2, 1fr); }
.edu-g--3 { grid-template-columns: repeat(3, 1fr); }
.edu-g--4 { grid-template-columns: repeat(4, 1fr); }
.edu-card {
  background: var(--bg);
  border-radius: 16px;
  padding: 28px;
  border: 1px solid var(--bdr);
  display: flex; flex-direction: column; gap: 12px;
  transition: transform .3s cubic-bezier(.25,.1,.25,1), box-shadow .2s;
}
.edu-card:hover { transform: translateY(-3px); box-shadow: var(--sh-md); }
.edu-ico { color: var(--c-p500); width: 30px; height: 30px; display: flex; align-items: center; }
.edu-ico i { font-size: 24px; color: var(--c-p500); }
.edu-ttl { font-family: var(--fd); font-size: 21px; font-weight: 400; color: var(--tx); }
.edu-txt { font-size: 14px; color: var(--tx2); line-height: 1.75; flex: 1; }
.sec-intro { font-size: 15px; color: var(--tx2); line-height: 1.7; margin-top: 10px; max-width: 640px; }
.edu-content { margin-top: 36px; font-size: 15px; color: var(--tx2); line-height: 1.8; max-width: 860px; }
.edu-content p { margin: 0 0 16px; }
.edu-content h3 { font-family: var(--fd); font-size: 20px; font-weight: 400; color: var(--tx); margin: 24px 0 8px; }
.edu-content ul, .edu-content ol { margin: 0 0 16px; padding-left: 20px; }
.edu-content li { margin-bottom: 6px; }

/* ============================================
   CATEGORY CARDS SECTION
   ============================================ */
.cat-sec {
  padding: 56px 32px;
  border-radius: 24px;
  border: 1px solid var(--bdr);
  margin: 24px 24px 0;
}
.cat-grid {
  display: grid;
  gap: 16px;
}
.cat-grid--2 { grid-template-columns: repeat(2, 1fr); }
.cat-grid--3 { grid-template-columns: repeat(3, 1fr); }
.cat-grid--4 { grid-template-columns: repeat(4, 1fr); }
.cat-card {
  position: relative;
  display: flex;
  align-items: flex-end;
  border-radius: var(--r-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--c-p500);
  text-decoration: none;
  transition: transform .3s, box-shadow .3s;
}
.cat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--sh-md);
}
.cat-card-img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: .45;
  transition: transform .4s, opacity .3s;
}
.cat-card:hover .cat-card-img { transform: scale(1.05); opacity: .55; }
.cat-card::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(
    to top,
    rgba(15, 42, 28, .7) 0%,
    rgba(15, 42, 28, .25) 40%,
    rgba(15, 42, 28, .0) 100%
  );
  pointer-events: none;
}
.cat-card-content {
  position: relative;
  z-index: 1;
  padding: 20px 22px;
  width: 100%;
}
.cat-card-name {
  font-family: var(--fd);
  font-size: 20px;
  font-weight: 400;
  color: var(--c-n0);
  margin: 0 0 3px;
  line-height: 1.2;
}
.cat-card-count {
  font-size: 12px;
  color: rgba(255,255,255,.7);
  font-family: var(--fb);
}

@media (max-width: 768px) {
  .edu { padding: 32px 16px; }
  .edu-g--2,
  .edu-g--3,
  .edu-g--4 { grid-template-columns: 1fr; }
  .cat-sec { padding: 32px 16px; }
  .cat-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .cat-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .cat-card { aspect-ratio: 3/2; }
  .cat-card-name { font-size: 17px; }
}
@media (max-width: 480px) {
  .cat-grid--2,
  .cat-grid--3,
  .cat-grid--4 { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .cat-card { aspect-ratio: 1/1; }
  .cat-card-content { padding: 14px 16px; }
  .cat-card-name { font-size: 15px; }
}