/* Welcome Busan — design system */

:root {
  --ink: #10202b;
  --ink-soft: #45606c;
  --paper: #fbfaf6;
  --paper-raised: #ffffff;
  --line: #e2ded2;
  --sea: #0f4c5c;
  --sea-deep: #0a3540;
  --sunset: #e8703a;
  --sunset-soft: #fbe6da;
  --focus: #1b7a93;
  --radius: 14px;
  --max: 1120px;
  font-size: 17px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Iowan Old Style", "Georgia", "Noto Serif", serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
  line-height: 1.2;
  margin: 0 0 0.5em;
}

a { color: var(--sea); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

img { max-width: 100%; display: block; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.kicker {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sunset);
  display: block;
  margin-bottom: 10px;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 246, 0.92);
  backdrop-filter: saturate(140%) blur(6px);
  position: sticky;
  top: 0;
  z-index: 40;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}
.brand {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-weight: 800;
  font-size: 19px;
  color: var(--ink);
  white-space: nowrap;
}
.brand span { color: var(--sunset); }
.main-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 14.5px;
  font-weight: 600;
}
.main-nav a { color: var(--ink-soft); }
.main-nav a:hover { color: var(--sea); text-decoration: none; }
.lang-switch {
  display: flex;
  gap: 2px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px;
  background: var(--paper-raised);
}
.lang-switch a {
  font-size: 12.5px;
  font-weight: 700;
  padding: 5px 10px;
  border-radius: 999px;
  color: var(--ink-soft);
}
.lang-switch a.active { background: var(--sea); color: #fff; }
.lang-switch a:hover { text-decoration: none; color: var(--sea); }
.nav-toggle { display: none; }

/* Hero */
.hero {
  padding: 76px 0 64px;
  border-bottom: 1px solid var(--line);
}
.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  max-width: 16ch;
}
.hero .lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 56ch;
  margin: 18px 0 30px;
}
.btn-row { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-weight: 700;
  font-size: 14.5px;
  padding: 13px 24px;
  border-radius: 999px;
  display: inline-block;
  transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
}
.btn-primary {
  background: linear-gradient(135deg, #ff8a3d 0%, #ff5f7e 55%, #a24bd6 100%);
  color: #fff;
  box-shadow: 0 10px 26px -10px rgba(230, 80, 130, 0.55);
}
.btn-primary:hover { filter: brightness(1.08); text-decoration: none; transform: translateY(-1px); }
.btn-ghost { border: 1px solid var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--sea); text-decoration: none; color: var(--sea); }

/* Hero — Gwangan Bridge night photo backdrop */
.hero--photo {
  position: relative;
  overflow: hidden;
  padding: 0;
  min-height: 620px;
  display: flex;
  align-items: center;
  border-bottom: none;
}
.hero-media { position: absolute; inset: 0; z-index: 0; background: #080d24; }
.hero-media .hero-svg { width: 100%; height: 100%; display: block; }
.hero-scrim {
  position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(180deg, rgba(4,8,20,.20) 0%, rgba(4,8,20,.30) 42%, rgba(4,8,20,.78) 100%),
    linear-gradient(90deg, rgba(4,8,20,.60) 0%, rgba(4,8,20,.18) 48%, rgba(4,8,20,.05) 100%);
}
.hero-content { position: relative; z-index: 2; padding: 130px 0 92px; }
.hero--photo .kicker { color: #ffce8a; }
.hero--photo h1 { color: #fff; text-shadow: 0 6px 34px rgba(0,0,0,.45); }
.hero--photo .lede { color: rgba(255,255,255,.92); text-shadow: 0 2px 16px rgba(0,0,0,.4); }
.hero--photo .btn-ghost { border-color: rgba(255,255,255,.55); color: #fff; }
.hero--photo .btn-ghost:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,.08); }

@keyframes heroTwinkle { 0%, 100% { opacity: .35; } 50% { opacity: 1; } }
.hero-star { fill: #fff; animation: heroTwinkle 3.4s ease-in-out infinite; }
.hero-light { animation: heroTwinkle 2.6s ease-in-out infinite; }

@media (max-width: 720px) {
  .hero--photo { min-height: 480px; }
  .hero-content { padding: 88px 0 60px; }
}

/* Section headers */
.section { padding: 56px 0; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin-bottom: 28px; flex-wrap: wrap; }
.section-head h2 { font-size: clamp(1.5rem, 3vw, 2rem); max-width: 24ch; }
.section-head .see-all { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; font-weight: 700; font-size: 14px; white-space: nowrap; }

/* Category grid */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
}
.cat-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  display: block;
  color: var(--ink);
  transition: border-color .15s ease, transform .15s ease;
}
.cat-card:hover { border-color: var(--sea); text-decoration: none; transform: translateY(-2px); box-shadow: 0 14px 30px -18px rgba(15, 76, 92, 0.45); }
.cat-card .icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, #ffb37a 0%, #ff8a9c 100%);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
  color: #fff;
}
.cat-card h3 { font-size: 1.05rem; margin-bottom: 6px; }
.cat-card p { color: var(--ink-soft); font-size: 0.92rem; margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; }

/* Post cards */
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}
.post-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper-raised);
  display: flex;
  flex-direction: column;
}
.post-card .thumb {
  height: 150px;
  background: linear-gradient(135deg, var(--sea) 0%, var(--focus) 60%, var(--sunset) 130%);
  display: flex;
  align-items: flex-end;
  padding: 14px;
  color: #fff;
}
.post-card .thumb span {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: rgba(0,0,0,0.28);
  padding: 5px 10px;
  border-radius: 999px;
}
.post-card .body { padding: 18px 20px 22px; flex: 1; display: flex; flex-direction: column; }
.post-card h3 { font-size: 1.12rem; margin-bottom: 8px; }
.post-card p.excerpt { color: var(--ink-soft); font-size: 0.95rem; margin: 0 0 14px; flex: 1; }
.post-card .meta {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 12px;
  color: var(--ink-soft);
  opacity: 0.85;
}

/* Article */
.breadcrumb {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 18px;
}
.breadcrumb a { color: var(--ink-soft); }
.article-head { padding: 44px 0 8px; border-bottom: 1px solid var(--line); }
.article-head h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); max-width: 22ch; }
.article-head .dek { font-size: 1.08rem; color: var(--ink-soft); max-width: 60ch; margin: 14px 0 26px; }
.article-meta {
  display: flex; gap: 16px; flex-wrap: wrap;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 13px; color: var(--ink-soft);
  padding-bottom: 28px;
}
.article-body { padding: 40px 0; max-width: 72ch; }
.article-body h2 { font-size: 1.4rem; margin-top: 2em; }
.article-body h3 { font-size: 1.15rem; margin-top: 1.6em; }
.article-body p { margin: 0 0 1.1em; }
.article-body ul, .article-body ol { margin: 0 0 1.1em; padding-left: 1.3em; }
.article-body li { margin-bottom: 0.4em; }
.article-body table { width: 100%; border-collapse: collapse; margin: 1.4em 0; font-size: 0.95rem; }
.article-body th, .article-body td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.article-body th { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--ink-soft); }

.info-box {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-left: 4px solid var(--sea);
  border-radius: 10px;
  padding: 20px 22px;
  margin: 1.6em 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 0.94rem;
}
.info-box h4 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--sea); margin-bottom: 12px; }
.info-box dl { display: grid; grid-template-columns: auto 1fr; gap: 8px 16px; margin: 0; }
.info-box dt { color: var(--ink-soft); }
.info-box dd { margin: 0; }
.info-box .map-link { display: inline-block; margin-top: 10px; font-weight: 700; }

.note-box {
  background: var(--sunset-soft);
  border-radius: 10px;
  padding: 16px 20px;
  font-size: 0.92rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  margin: 1.6em 0;
}
.note-box strong { color: var(--sunset); }

.related { border-top: 1px solid var(--line); padding: 36px 0 8px; }
.related h2 { font-size: 1.2rem; }
.related-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.related-list a {
  display: block;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-weight: 600;
  font-size: 0.94rem;
}
.related-list a:hover { border-color: var(--sea); text-decoration: none; color: var(--sea); }

/* Simple static pages */
.prose { padding: 48px 0 64px; max-width: 68ch; }
.prose h1 { font-size: clamp(1.7rem, 4vw, 2.3rem); }
.prose p { margin: 0 0 1.1em; }
.prose h2 { font-size: 1.25rem; margin-top: 1.8em; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 40px 0 50px;
  margin-top: 40px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}
.site-footer .cols { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-footer .note { color: var(--ink-soft); font-size: 0.88rem; max-width: 46ch; }
.site-footer .links { display: flex; gap: 18px; flex-wrap: wrap; font-size: 0.88rem; }
.site-footer .links a { color: var(--ink-soft); }
.site-footer .links a:hover { color: var(--sea); }
.site-footer .copyright { margin-top: 22px; font-size: 0.8rem; color: var(--ink-soft); opacity: 0.7; }

/* 404 */
.error-page { padding: 100px 0; text-align: center; }
.error-page h1 { font-size: 3rem; }

@media (max-width: 720px) {
  .main-nav { gap: 14px; }
  .main-nav .nav-links { display: none; }
  .site-header .wrap { height: 60px; }
  .hero { padding: 48px 0 40px; }
  .section { padding: 40px 0; }
}