:root {
  --bg: #f4f4f4;
  --surface: #ffffff;
  --surface-muted: #f4f4f4;
  --surface-strong: #161616;
  --text: #161616;
  --text-soft: #525252;
  --line: rgba(22, 22, 22, 0.12);
  --brand: #0f62fe;
  --brand-strong: #0043ce;
  --accent: #0f62fe;
  --accent-soft: rgba(15, 98, 254, 0.1);
  --shadow: 0 16px 34px rgba(22, 22, 22, 0.08);
  --radius: 14px;
  --radius-sm: 10px;
  --content: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Pretendard", "Noto Sans KR", "Malgun Gothic", sans-serif;
  color: var(--text);
  background:
    linear-gradient(180deg, #f7f8f9 0%, var(--bg) 100%);
  line-height: 1.65;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

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

.site-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  background: #161616;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.topbar-inner {
  display: flex;
  justify-content: flex-end;
  gap: 18px;
  padding: 10px 0;
}

.topbar a:hover {
  color: #ffffff;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(247, 248, 249, 0.94);
  border-bottom: 1px solid rgba(22, 22, 22, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 18px;
}

.brand img {
  width: 72px;
  height: 72px;
  object-fit: contain;
}

.brand-copy {
  display: grid;
  gap: 3px;
}

.brand-copy strong {
  font-size: 1.1rem;
  letter-spacing: 0.08em;
}

.brand-copy span {
  color: var(--text-soft);
  font-size: 0.9rem;
}

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 14px;
  background: var(--surface-muted);
  color: var(--brand-strong);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.main-nav a {
  padding: 12px 16px;
  border-radius: 999px;
  color: var(--text-soft);
  font-weight: 600;
  transition: 0.2s ease;
}

.main-nav a:hover,
.main-nav a.is-active {
  background: rgba(15, 98, 254, 0.08);
  color: var(--brand-strong);
}

main {
  flex: 1;
}

.hero {
  padding: 72px 0 56px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 28px;
  align-items: stretch;
}

.hero-panel,
.hero-aside {
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(22, 22, 22, 0.08);
  box-shadow: var(--shadow);
  border-radius: calc(var(--radius) + 2px);
}

.hero-panel {
  padding: 44px;
  background:
    linear-gradient(135deg, #161616 0%, #173047 58%, #0043ce 100%),
    #173047;
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.hero-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(135deg, rgba(0, 0, 0, 0.9), transparent 75%);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.hero h1,
.page-hero h1 {
  margin: 18px 0 16px;
  line-height: 1.2;
  font-size: clamp(2.4rem, 4vw, 4.3rem);
  letter-spacing: -0.04em;
}

.hero p,
.page-hero p {
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.06rem;
}

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

.button,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button {
  background: var(--brand);
  color: #ffffff;
}

.button-secondary {
  color: var(--brand-strong);
  border: 1px solid rgba(15, 98, 254, 0.16);
  background: rgba(15, 98, 254, 0.08);
}

.button:hover,
.button-secondary:hover {
  transform: translateY(-2px);
}

.hero-panel .button-secondary,
.page-hero-panel .button-secondary {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.06);
}

.hero-panel .button,
.page-hero-panel .button {
  background: #ffffff;
  color: var(--brand-strong);
}

.hero-aside {
  padding: 28px;
  display: grid;
  gap: 18px;
}

.hero-card {
  padding: 22px;
  border-radius: 12px;
  background: linear-gradient(180deg, #ffffff 0%, #f4f6f7 100%);
  border: 1px solid rgba(22, 22, 22, 0.08);
}

.hero-card strong,
.metric strong {
  display: block;
  font-size: 1.28rem;
  margin-bottom: 8px;
}

.hero-card p,
.metric p,
.card p,
.section-copy p,
.notice-list li,
.resource-card p,
.timeline-item p,
.equipment-card p,
.feature-list li,
.form-note,
.address-box p {
  color: var(--text-soft);
}

.metric-grid,
.card-grid,
.resource-grid,
.equipment-grid,
.support-grid,
.stats-grid,
.feature-grid {
  display: grid;
  gap: 18px;
}

.metric-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.metric {
  padding: 18px;
  border-radius: 12px;
  background: rgba(22, 22, 22, 0.04);
  border: 1px solid rgba(22, 22, 22, 0.06);
}

.section {
  padding: 28px 0 72px;
}

.section-head,
.page-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 28px;
}

.section-head h2,
.page-head h2 {
  margin: 0;
  font-size: clamp(1.7rem, 2.5vw, 2.6rem);
  letter-spacing: -0.04em;
}

.section-head p,
.page-head p {
  margin: 8px 0 0;
  max-width: 760px;
  color: var(--text-soft);
}

.card-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card,
.resource-card,
.equipment-card,
.support-card,
.notice-card,
.address-box,
.timeline-item,
.form-panel,
.quick-link {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(22, 22, 22, 0.08);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card,
.resource-card,
.equipment-card,
.support-card,
.notice-card,
.timeline-item,
.quick-link {
  padding: 26px;
}

.card h3,
.resource-card h3,
.equipment-card h3,
.support-card h3,
.notice-card h3,
.timeline-item h3,
.page-block h3 {
  margin: 0 0 12px;
  font-size: 1.24rem;
  letter-spacing: -0.02em;
}

.page-hero {
  padding: 56px 0 24px;
}

.page-hero-panel {
  padding: 36px;
  border-radius: calc(var(--radius) + 2px);
  color: #ffffff;
  background:
    linear-gradient(135deg, #161616 0%, #173047 58%, #0043ce 100%),
    #173047;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.page-hero-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(135deg, rgba(0, 0, 0, 0.7), transparent 78%);
}

.page-hero p {
  max-width: 760px;
}

.page-grid {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 22px;
  padding-bottom: 72px;
}

.subnav,
.page-block {
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(22, 22, 22, 0.08);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.subnav {
  position: sticky;
  top: 110px;
  padding: 18px;
  align-self: start;
}

.subnav h2 {
  margin: 0 0 12px;
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: var(--brand-strong);
}

.subnav a {
  display: block;
  padding: 12px 14px;
  border-radius: 14px;
  color: var(--text-soft);
  font-weight: 600;
}

.subnav a:hover {
  background: rgba(15, 98, 254, 0.07);
  color: var(--brand-strong);
}

.page-stack {
  display: grid;
  gap: 20px;
}

.page-block {
  padding: 32px;
}

.quote {
  font-size: 1.15rem;
  color: var(--brand-strong);
  line-height: 1.9;
}

.timeline {
  display: grid;
  gap: 16px;
}

.timeline-item span,
.notice-date,
.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--brand-strong);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.stats-grid,
.feature-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stat-box,
.feature-box {
  padding: 20px;
  border-radius: 12px;
  background: var(--surface-muted);
  border: 1px solid rgba(22, 22, 22, 0.06);
}

.stat-box strong,
.feature-box strong {
  display: block;
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.equipment-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.equipment-card ul,
.feature-list,
.notice-list,
.contact-list,
.resource-card ul {
  margin: 0;
  padding-left: 18px;
}

.equipment-card li,
.feature-list li,
.notice-list li,
.contact-list li,
.resource-card li {
  margin-bottom: 8px;
}

.archive-banner,
.media-frame {
  margin-top: 20px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(22, 22, 22, 0.08);
  background: #ffffff;
  box-shadow: var(--shadow);
}

.archive-banner img,
.media-frame img {
  width: 100%;
}

.archive-banner figcaption,
.media-caption {
  padding: 12px 14px;
  font-size: 0.92rem;
  color: var(--text-soft);
  background: rgba(22, 22, 22, 0.03);
}

.archive-note {
  padding: 18px 20px;
  border-radius: 12px;
  border: 1px solid rgba(22, 22, 22, 0.08);
  border-left: 4px solid var(--brand);
  background: var(--surface-muted);
  color: var(--text-soft);
}

.archive-note strong {
  display: block;
  margin-bottom: 8px;
  color: var(--brand-strong);
}

.media-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.media-gallery.two-up {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.support-grid {
  grid-template-columns: 1fr 1.1fr;
  align-items: start;
}

.notice-card ul {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 14px;
}

.notice-card li {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.notice-card li:first-child {
  border-top: 0;
  padding-top: 0;
}

.resource-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.form-panel {
  padding: 30px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.field,
.field-full {
  display: grid;
  gap: 8px;
}

.field-full {
  grid-column: 1 / -1;
}

.field label,
.field-full label {
  font-weight: 700;
  font-size: 0.95rem;
}

.field input,
.field textarea,
.field select,
.field-full input,
.field-full textarea,
.field-full select {
  width: 100%;
  min-height: 52px;
  padding: 14px 16px;
  border-radius: 10px;
  border: 1px solid rgba(22, 22, 22, 0.14);
  background: #ffffff;
  color: var(--text);
}

.field input:focus,
.field textarea:focus,
.field select:focus,
.field-full input:focus,
.field-full textarea:focus,
.field-full select:focus {
  outline: none;
  border-color: rgba(15, 98, 254, 0.55);
  box-shadow: 0 0 0 4px rgba(15, 98, 254, 0.1);
}

.field textarea,
.field-full textarea {
  min-height: 180px;
  resize: vertical;
}

.inline-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.inline-grid.four {
  grid-template-columns: 100px repeat(2, minmax(0, 1fr));
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.quick-link {
  display: grid;
  gap: 12px;
}

.quick-link strong {
  font-size: 1.18rem;
}

.quick-link a,
.support-card a,
.resource-card a,
.card a {
  color: var(--brand);
  font-weight: 700;
}

.address-box {
  padding: 28px;
}

.site-footer {
  padding: 28px 0 40px;
  background:
    linear-gradient(180deg, #161616 0%, #262626 100%);
  color: rgba(255, 255, 255, 0.84);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: end;
}

.footer-grid strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.95rem;
}

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

.footer-actions a {
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.03);
}

.footer-actions a:hover {
  background: rgba(255, 255, 255, 0.08);
}

@media (max-width: 1100px) {
  .hero-grid,
  .support-grid,
  .page-grid {
    grid-template-columns: 1fr;
  }

  .subnav {
    position: static;
  }

  .card-grid,
  .resource-grid,
  .quick-links,
  .equipment-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .topbar-inner {
    justify-content: center;
  }

  .header-inner {
    align-items: start;
  }

  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
  }

  .main-nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 20px;
    right: 20px;
    display: none;
    padding: 14px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.97);
    border: 1px solid rgba(22, 22, 22, 0.08);
    box-shadow: var(--shadow);
  }

  .main-nav.is-open {
    display: grid;
  }

  .main-nav a {
    border-radius: 14px;
  }

  .metric-grid,
  .stats-grid,
  .feature-grid,
  .form-grid,
  .card-grid,
  .resource-grid,
  .quick-links,
  .equipment-grid,
  .media-gallery,
  .media-gallery.two-up {
    grid-template-columns: 1fr;
  }

  .hero-panel,
  .hero-aside,
  .page-hero-panel,
  .page-block,
  .form-panel {
    padding: 24px;
  }

  .section-head,
  .page-head,
  .footer-grid {
    grid-template-columns: 1fr;
    display: grid;
    align-items: start;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(calc(100% - 28px), var(--content));
  }

  .hero,
  .section,
  .page-hero {
    padding-top: 40px;
  }

  .brand {
    gap: 12px;
  }

  .brand img {
    width: 64px;
    height: 64px;
  }

  .brand-copy {
    display: none;
  }

  .inline-grid,
  .inline-grid.four {
    grid-template-columns: 1fr;
  }

  .hero h1,
  .page-hero h1 {
    font-size: 2.2rem;
  }
}