/* ============================================================
   GoKorean Travel Portal – Global Styles (LIGHT MODE)
   ============================================================ */

.gk-section {
  padding: 3rem 1.5rem;
  background: #f2f4f8;
  color: #1a1a1a;
}

.gk-section:nth-of-type(even) {
  background: #e9edf3;
}

.gk-container {
  max-width: 1200px;
  margin: 0 auto;
}

.gk-section-title {
  font-size: 1.9rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: #1e73be;
}

.gk-section-subtitle {
  font-size: 0.95rem;
  color: #4a4a4a;
  margin-bottom: 1.5rem;
}

/* ============================================================
   Grid System
   ============================================================ */

.gk-grid {
  display: grid;
  gap: 1.25rem;
}

.gk-grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.gk-grid--4 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* ============================================================
   Cards
   ============================================================ */

.gk-card {
  background: #ffffff;
  border-radius: 0.75rem;
  border: 1px solid #d5dce5;
  padding: 1rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}

.gk-card--hover {
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.gk-card--hover:hover {
  transform: translateY(-4px);
  border-color: #1e73be;
  box-shadow: 0 6px 16px rgba(0,0,0,0.12);
}

.gk-card__header h3 {
  margin: 0.25rem 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: #1a1a1a;
}

.gk-card__body p {
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
  color: #4a4a4a;
}

.gk-card__body a {
  font-size: 0.9rem;
  color: #1e73be;
  text-decoration: none;
}

.gk-card__body a:hover {
  text-decoration: underline;
}

/* ============================================================
   Tags / Labels
   ============================================================ */

.gk-tag {
  display: inline-block;
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: #e8f2ff;
  color: #1e73be;
  font-weight: 500;
}

/* ============================================================
   Accordion System
   ============================================================ */

.gk-accordion__header {
  width: 100%;
  background: transparent;
  border: none;
  color: #1a1a1a;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.95rem;
  padding: 0.25rem 0;
  cursor: pointer;
}

.gk-accordion__icon {
  font-weight: 600;
  font-size: 1.1rem;
  margin-left: 0.75rem;
  transition: transform 0.2s ease;
  color: #1e73be;
}

.gk-accordion__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.22s ease;
}

.gk-accordion--open .gk-accordion__body {
  max-height: 400px;
}

.gk-accordion--open .gk-accordion__icon {
  transform: rotate(45deg);
}

/* ============================================================
   Lists
   ============================================================ */

.gk-list {
  list-style: none;
  padding-left: 0;
  margin: 0.5rem 0 0;
}

.gk-list li {
  margin-bottom: 0.35rem;
}

.gk-list a {
  font-size: 0.9rem;
  color: #1e73be;
  text-decoration: none;
}

.gk-list a:hover {
  color: #125a96;
  text-decoration: underline;
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 640px) {
  .gk-section {
    padding: 2.25rem 1rem;
  }
}