:root {
  --bg: #eef7f1;
  --bg-soft: #f7fbf8;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: #ffffff;
  --line: #d5e5da;
  --line-strong: #bfd5c7;
  --text: #1e2c24;
  --muted: #587164;
  --primary: #2f6f57;
  --primary-strong: #1f513f;
  --primary-soft: #e2f0e8;
  --shadow: 0 18px 45px rgba(33, 72, 53, 0.10);
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --container: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans KR", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(133, 196, 158, 0.18), transparent 26%),
    radial-gradient(circle at top right, rgba(97, 168, 131, 0.12), transparent 24%),
    linear-gradient(180deg, #edf7f0 0%, #f8fcf9 100%);
}

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

.site-shell {
  min-height: 100vh;
}

.container {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(238, 247, 241, 0.78);
  border-bottom: 1px solid rgba(191, 213, 199, 0.7);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.2rem;
}

.brand-mark {
  display: inline-flex;
  width: 34px;
  height: 34px;
}

.brand-mark svg {
  width: 100%;
  height: 100%;
  stroke: var(--primary);
  stroke-width: 3;
}

.site-nav {
  display: flex;
  gap: 12px;
  align-items: center;
}

.site-nav a {
  padding: 11px 16px;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 600;
  transition: 0.2s ease;
}

.site-nav a:hover {
  background: var(--primary-soft);
  color: var(--primary-strong);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--primary-strong);
  margin: 5px auto;
  border-radius: 2px;
}

.hero {
  padding: 72px 0 52px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 30px;
  align-items: center;
}

.hero-copy,
.hero-panel-card,
.about-card,
.meta-card,
.platform-card,
.pavilion-card {
  backdrop-filter: blur(10px);
}

.hero-copy {
  background: linear-gradient(180deg, rgba(255,255,255,0.82), rgba(255,255,255,0.68));
  border: 1px solid rgba(191, 213, 199, 0.8);
  border-radius: var(--radius-lg);
  padding: 42px;
  box-shadow: var(--shadow);
}

.eyebrow,
.section-kicker {
  display: inline-block;
  margin: 0 0 14px;
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
}

.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  line-height: 1.06;
  font-weight: 800;
}

.hero-desc {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 10px 24px rgba(47, 111, 87, 0.20);
}

.btn-primary:hover {
  background: var(--primary-strong);
}

.btn-secondary {
  background: white;
  color: var(--primary-strong);
  border: 1px solid var(--line-strong);
}

.hero-panel-card {
  background: linear-gradient(180deg, rgba(244, 250, 246, 0.9), rgba(255, 255, 255, 0.78));
  border: 1px solid rgba(191, 213, 199, 0.8);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow);
}

.hero-panel-card h2 {
  margin: 0 0 18px;
  font-size: 1.35rem;
}

.overview-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.overview-list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 12px;
  color: var(--muted);
  line-height: 1.7;
}

.overview-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

.section {
  padding: 36px 0 70px;
}

.alt-section {
  background: linear-gradient(180deg, rgba(236, 247, 240, 0.4), rgba(247, 251, 248, 0.9));
  border-top: 1px solid rgba(191, 213, 199, 0.5);
  border-bottom: 1px solid rgba(191, 213, 199, 0.5);
}

.section-head {
  max-width: 760px;
  margin-bottom: 28px;
}

.section-head h2 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  line-height: 1.15;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}

.card-grid {
  display: grid;
  gap: 22px;
}

.wiki-grid {
  grid-template-columns: repeat(5, 1fr);
}

.platform-card,
.pavilion-card,
.about-card {
  background: var(--surface);
  border: 1px solid rgba(191, 213, 199, 0.8);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.platform-card:hover,
.pavilion-card:hover,
.about-card:hover {
  transform: translateY(-4px);
  border-color: #9fbea9;
  box-shadow: 0 20px 40px rgba(33, 72, 53, 0.14);
}

.platform-card h3,
.pavilion-card h3,
.about-card h3 {
  margin: 0 0 10px;
  font-size: 1.15rem;
  line-height: 1.4;
}

.platform-card p,
.pavilion-card p,
.about-card p {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.8;
  font-size: 0.98rem;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--primary);
}

.card-link::after {
  content: "→";
}

.feature-banner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 22px;
  align-items: stretch;
}

.feature-copy {
  background: var(--surface);
  border: 1px solid rgba(191, 213, 199, 0.8);
  border-radius: var(--radius-lg);
  padding: 34px;
  box-shadow: var(--shadow);
}

.feature-copy h2 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
}

.feature-copy p {
  margin: 0 0 22px;
  color: var(--muted);
  line-height: 1.85;
}

.feature-meta {
  display: grid;
  gap: 16px;
}

.meta-card {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(191, 213, 199, 0.8);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: var(--shadow);
}

.meta-card strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1.02rem;
}

.meta-card span {
  color: var(--muted);
  line-height: 1.7;
  font-size: 0.96rem;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.site-footer {
  margin-top: 24px;
  padding: 26px 0 34px;
  border-top: 1px solid rgba(191, 213, 199, 0.7);
  background: rgba(247, 251, 248, 0.7);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}

.footer-inner p {
  margin: 6px 0 0;
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-links a {
  color: var(--muted);
  font-weight: 600;
}

.pavilion-hero {
  padding: 74px 0 34px;
}

.pavilion-grid {
  grid-template-columns: repeat(3, 1fr);
}

.pavilion-tag {
  display: inline-block;
  margin-bottom: 12px;
  padding: 7px 11px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary-strong);
  font-size: 0.85rem;
  font-weight: 700;
}

.empty-note {
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 1180px) {
  .wiki-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .pavilion-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 920px) {
  .hero-inner,
  .feature-banner,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .site-nav {
    position: absolute;
    top: 78px;
    left: 20px;
    right: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    background: rgba(255,255,255,0.95);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: var(--shadow);
  }

  .site-nav.open {
    display: flex;
  }

  .nav-toggle {
    display: inline-block;
  }

  .hero-copy,
  .hero-panel-card,
  .feature-copy,
  .platform-card,
  .pavilion-card,
  .about-card {
    padding: 24px;
  }

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

@media (max-width: 700px) {
  .container {
    width: min(var(--container), calc(100% - 24px));
  }

  .hero {
    padding-top: 44px;
  }

  .wiki-grid,
  .pavilion-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .section {
    padding: 28px 0 54px;
  }

  .header-inner {
    min-height: 70px;
  }

  .site-nav {
    top: 70px;
    left: 12px;
    right: 12px;
  }
}