:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --paper: #ffffff;
  --text: #172033;
  --muted: #5b6b82;
  --line: #dfe6f0;
  --blue: #246bc9;
  --deep-blue: #123b73;
  --sky-blue: #dff1ff;
  --sky-blue-line: #8dcbf3;
  --blue-soft: #eaf3ff;
  --red: #df1f2d;
  --red-dark: #ba1420;
  --soft: #f9fbff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", Arial, sans-serif;
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-shell {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto;
  padding: 0 0 48px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 62px;
  margin: 0 calc(50% - 50vw) 36px;
  padding: 10px max(18px, calc((100vw - 860px) / 2));
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  border-radius: 8px;
  background: var(--blue);
  color: #fff;
  font-weight: 800;
}

.brand strong {
  display: block;
  font-size: 16px;
  line-height: 1.25;
}

.nav {
  display: flex;
  gap: 8px;
  flex: 0 0 auto;
}

.nav a {
  padding: 9px 13px;
  border-radius: 8px;
  color: #30445f;
  font-size: 14px;
  font-weight: 700;
}

.nav a:hover,
.nav a.active {
  background: var(--blue-soft);
  color: var(--blue);
}

.hero,
.page-title,
.content-section,
.banner-section {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 14px 34px rgba(24, 38, 60, 0.07);
}

.hero {
  padding: 58px 34px 42px;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 3px;
  border-radius: 999px;
  background: currentColor;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 16px;
  font-size: 38px;
  line-height: 1.22;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: 24px;
  line-height: 1.35;
}

h3 {
  margin-bottom: 8px;
  font-size: 18px;
  line-height: 1.35;
}

.lead,
.page-title p,
.content-section p,
.step-list li,
.faq-list dd,
.guide-banner span {
  color: var(--muted);
}

.reservation-buttons {
  display: grid;
  gap: 12px;
  width: min(560px, 100%);
  margin: 30px auto 0;
}

.page-actions {
  display: grid;
  gap: 12px;
  width: min(560px, 100%);
  margin: 28px auto 0;
}

.ad-box {
  width: min(728px, 100%);
  min-height: 90px;
  margin: 48px auto 0;
  overflow: visible;
}

.adsbygoogle {
  max-width: 100%;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 12px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  font-size: 21px;
  font-weight: 800;
  line-height: 1.25;
  text-align: center;
}

.button.red {
  border-color: var(--red);
  background: var(--red);
  color: #fff;
  box-shadow: 0 10px 18px rgba(223, 31, 45, 0.18);
}

.button.red:hover {
  border-color: var(--red-dark);
  background: var(--red-dark);
}

.banner-section,
.page-title,
.content-section {
  margin-top: 16px;
  padding: 28px;
}

.banner-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.guide-banner {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 6px;
  min-height: 136px;
  padding: 22px 22px 22px 28px;
  border: 1px solid var(--sky-blue-line);
  border-radius: 8px;
  background: linear-gradient(90deg, var(--sky-blue) 0, var(--sky-blue) 10px, #ffffff 10px, #f8fcff 100%);
}

.guide-banner:hover {
  border-color: #55aee8;
  box-shadow: 0 10px 22px rgba(18, 59, 115, 0.1);
}

.guide-banner strong {
  color: var(--deep-blue);
  font-size: 19px;
}

.page-title {
  text-align: center;
}

.page-title .eyebrow {
  margin-bottom: 10px;
}

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

.guide-grid article {
  min-height: 160px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.step-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding-left: 22px;
}

.step-list strong {
  display: block;
  margin-bottom: 3px;
  color: var(--text);
}

.faq-list {
  display: grid;
  gap: 14px;
  margin: 0;
}

.faq-list div {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.faq-list div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.faq-list dt {
  margin-bottom: 4px;
  font-weight: 900;
}

.faq-list dd {
  margin: 0;
}

.bottom-nav {
  display: grid;
  gap: 10px;
  margin-top: 16px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: 0 14px 34px rgba(24, 38, 60, 0.07);
}

.bottom-nav a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 14px;
  border: 1px solid var(--sky-blue-line);
  border-radius: 8px;
  background: #f8fcff;
  color: var(--deep-blue);
  font-size: 17px;
  font-weight: 800;
  text-align: center;
}

.bottom-nav a:hover {
  border-color: var(--blue);
  background: var(--blue-soft);
}

.site-footer {
  margin-top: 24px;
  padding: 18px 6px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.site-footer p {
  margin: 0 0 6px;
}

.site-footer p:last-child {
  margin-bottom: 0;
}

@media (max-width: 720px) {
  .site-shell {
    width: min(100% - 22px, 860px);
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    margin-bottom: 20px;
    padding: 12px 11px;
  }

  .nav {
    width: 100%;
    flex-wrap: wrap;
  }

  .nav a {
    flex: 1;
    min-width: 30%;
    text-align: center;
  }

  .hero,
  .banner-section,
  .page-title,
  .content-section {
    padding: 22px;
  }

  h1 {
    font-size: 29px;
  }

  .banner-section,
  .guide-grid {
    grid-template-columns: 1fr;
  }

  .button {
    min-height: 52px;
    font-size: 22px;
  }

  .guide-grid article {
    min-height: auto;
  }
}