/* Reset & Base */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}
 body {
  font-family: "Noto Sans KR", -apple-system, BlinkMacSystemFont, system-ui,
    "Apple SD Gothic Neo", "Segoe UI", sans-serif;
  color: #111827;
  background-color: #f3f4f6;
  line-height: 1.7;
  font-weight: 400;
}

}

a {
  color: #2563eb;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* 전체 부드러운 배경 그라데이션 */
.page-bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.08), transparent),
    radial-gradient(circle at top right, rgba(248, 250, 252, 0.7), transparent),
    #f3f4f6;
  z-index: -1;
}

/* Layout */

.main-wrap {
  padding: 32px 12px 40px;
}

.article-card {
  max-width: 1040px;
  margin: 0 auto;
  padding: 24px 22px 26px;
  background-color: #ffffff;
  border-radius: 16px;
  box-shadow:
    0 18px 40px rgba(15, 23, 42, 0.08),
    0 0 0 1px rgba(148, 163, 253, 0.03);
}

/* Container for header only */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */

/* Header 개선 버전 */
.page-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1040px;
  margin: 0 auto;
  padding: 16px 20px;
}

.brand {
  font-size: 20px;
  font-weight: 700;
  color: #111827;
  letter-spacing: -0.02em;
}

.header-nav {
  display: flex;
  gap: 20px;
  align-items: center;
}

.header-nav a {
  font-size: 14px;
  color: #6b7280;
  font-weight: 500;
  transition: color 0.2s, border-color 0.2s;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}

.header-nav a:hover {
  color: #111827;
  border-bottom-color: #2563eb;
  text-decoration: none;
}


/* Intro */

.intro {
  padding-bottom: 10px;
}

.eyebrow {
  font-size: 12px;
  color: #6b7280;
  margin: 0 0 4px;
}

.page-title {
  font-size: 26px;
  font-weight: 700;
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}

.lead {
  font-size: 14px;
  color: #4b5563;
  margin: 0;
}

/* TOC */

.toc {
  margin-top: 18px;
  padding: 10px 12px 8px;
  border-radius: 10px;
  background-color: #f9fafb;
  border: 1px solid #e5e7eb;
}

.section-title-small {
  font-size: 13px;
  font-weight: 600;
  margin: 0 0 4px;
}

.toc ol {
  margin: 0;
  padding-left: 18px;
  font-size: 13px;
  color: #6b7280;
}

.toc a {
  color: #4b5563;
}

.toc a:hover {
  color: #111827;
}

/* Video Section */

.video-section {
  padding-top: 18px;
}

.video-card {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(260px, 1.7fr);
  gap: 18px;
  padding: 16px 14px 14px;
  border-radius: 12px;
  border: 1px solid #e5e7eb;
  background:
    radial-gradient(circle at top left, rgba(219, 234, 254, 0.65), transparent),
    #ffffff;
}

.video-label {
  display: inline-block;
  padding: 2px 8px;
  font-size: 10px;
  border-radius: 999px;
  background-color: #eff6ff;
  color: #2563eb;
  margin-bottom: 6px;
  font-weight: 500;
}

.video-title {
  margin: 0 0 4px;
  font-size: 17px;
  font-weight: 600;
  color: #111827;
}

.video-title span {
  font-size: 14px;
  font-weight: 400;
  color: #2563eb;
}

.video-desc {
  margin: 0;
  font-size: 13px;
  color: #4b5563;
}

.video-frame-wrap {
  align-self: center;
}

.video-ratio {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  border-radius: 10px;
  overflow: hidden;
  background-color: #000;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
}

.video-ratio iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* Common Section */

.section {
  padding: 20px 0 4px;
}

.section-title {
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 8px;
}

.section p {
  font-size: 14px;
  color: #4b5563;
  margin: 0 0 10px;
}

.section-gray {
  margin: 14px -4px 0;
  padding: 18px 4px 8px;
  border-radius: 10px;
  background-color: #f9fafb;
  border: 1px solid #f3f4f6;
}

.prose p {
  margin-bottom: 8px;
}

.small-note {
  font-size: 11px;
  color: #9ca3af;
}

/* Columns */

.three-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 6px;
}

.col-card {
  padding: 10px 10px 8px;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
  background-color: #ffffff;
  font-size: 13px;
  color: #4b5563;
}

.col-card h3 {
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 600;
  color: #111827;
}

/* Lists & Highlights */

.bullet-list {
  margin: 6px 0 4px;
  padding-left: 18px;
  font-size: 13px;
  color: #4b5563;
}

/* Compare / Hotel */

.compare-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 8px;
}

.compare-col {
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
  background-color: #ffffff;
  font-size: 13px;
}

.badge {
  display: inline-block;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: #1d4ed8;
  background-color: #eff6ff;
  border: 1px solid #bfdbfe;
  margin-bottom: 6px;
}

.badge-main {
  color: #ffffff;
  background-color: #2563eb;
  border-color: #2563eb;
}

.compare-sub {
  margin: 0 0 4px;
  font-size: 12px;
  color: #6b7280;
}

.compare-label {
  margin: 0 0 2px;
  font-size: 12px;
  color: #4b5563;
}

.compare-list {
  margin: 0 0 4px;
  padding-left: 16px;
}

.compare-sum {
  margin: 0;
  font-size: 12px;
  color: #111827;
}

/* Notes */

.note-box {
  margin-top: 10px;
  padding: 9px 10px;
  border-radius: 8px;
  background-color: #f9fafb;
  border: 1px solid #e5e7eb;
  font-size: 13px;
  color: #4b5563;
}

.note-box.strong {
  background-color: #fff7ed;
  border-color: #fed7aa;
  color: #92400e;
}

/* Option Boxes */

.two-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 8px;
}

.opt-box {
  padding: 9px 10px;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
  background-color: #ffffff;
  font-size: 13px;
}

.opt-box h3 {
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 600;
  color: #111827;
}

/* Table */

.table-wrap {
  margin-top: 8px;
  overflow-x: auto;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  background-color: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  overflow: hidden;
}

.compare-table th,
.compare-table td {
  padding: 7px 9px;
  border-bottom: 1px solid #f3f4f6;
  text-align: left;
}

.compare-table th {
  background-color: #f9fafb;
  font-weight: 600;
  color: #111827;
}

.row-highlight td {
  background-color: #eff6ff;
  font-weight: 600;
  color: #1d4ed8;
}

/* Checklist & CTA */

.checklist {
  display: grid;
  gap: 8px;
  margin: 10px 0 14px;
}

.check-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 8px;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
  background-color: #ffffff;
  font-size: 13px;
}

.check-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background-color: #eff6ff;
  color: #2563eb;
  font-size: 11px;
  font-weight: 600;
}

.check-item h3 {
  margin: 0 0 2px;
  font-size: 14px;
  font-weight: 600;
  color: #111827;
}

.closing {
  font-size: 13px;
  color: #4b5563;
  margin: 0 0 10px;
}

.cta {
  margin-top: 4px;
  padding: 10px 11px;
  border-radius: 10px;
  border: 1px solid #e5e7eb;
  background-color: #ffffff;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  font-size: 13px;
}

.cta h3 {
  margin: 0 0 2px;
  font-size: 15px;
  font-weight: 600;
}

.cta p {
  margin: 0;
  color: #6b7280;
}

.cta-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 12px;
  border-radius: 6px;
  border: 1px solid #d1d5db;
  font-size: 12px;
  color: #374151;
  background-color: #ffffff;
  cursor: pointer;
  text-decoration: none;
}

.btn.primary {
  background-color: #2563eb;
  border-color: #2563eb;
  color: #ffffff;
}

.btn:hover {
  background-color: #f3f4f6;
  text-decoration: none;
}

.btn.primary:hover {
  background-color: #1d4ed8;
}

/* Responsive */

@media (max-width: 768px) {
  .header-nav {
    display: none;
  }

  .main-wrap {
    padding: 20px 8px 26px;
  }

  .article-card {
    padding: 18px 14px 20px;
    border-radius: 12px;
  }

  .page-title {
    font-size: 22px;
  }

  .video-card {
    grid-template-columns: 1fr;
  }

  .three-cols,
  .compare-grid,
  .two-cols {
    grid-template-columns: 1fr;
  }

  .section-gray {
    margin: 12px -2px 0;
    padding: 14px 2px 6px;
  }

  .cta {
    flex-direction: column;
    align-items: flex-start;
  }
}