@font-face {
  font-family: 'Pretendard';
  src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/pretendard@1.0/Pretendard-Thin.woff2') format('woff2');
  font-weight: 100;
  font-display: swap;
}

@font-face {
  font-family: 'Pretendard';
  src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/pretendard@1.0/Pretendard-ExtraLight.woff2') format('woff2');
  font-weight: 200;
  font-display: swap;
}

@font-face {
  font-family: 'Pretendard';
  src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/pretendard@1.0/Pretendard-Light.woff2') format('woff2');
  font-weight: 300;
  font-display: swap;
}

@font-face {
  font-family: 'Pretendard';
  src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/pretendard@1.0/Pretendard-Regular.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: 'Pretendard';
  src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/pretendard@1.0/Pretendard-Medium.woff2') format('woff2');
  font-weight: 500;
  font-display: swap;
}

@font-face {
  font-family: 'Pretendard';
  src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/pretendard@1.0/Pretendard-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: 'Pretendard';
  src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/pretendard@1.0/Pretendard-Bold.woff2') format('woff2');
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: 'Pretendard';
  src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/pretendard@1.0/Pretendard-ExtraBold.woff2') format('woff2');
  font-weight: 800;
  font-display: swap;
}

@font-face {
  font-family: 'Pretendard';
  src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/pretendard@1.0/Pretendard-Black.woff2') format('woff2');
  font-weight: 900;
  font-display: swap;
}

:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-alt: #f5f5f9;
  --text: #111111;
  --muted: #5f636f;
  --line: rgba(17, 17, 17, 0.1);
  --primary: #38a169;
  --primary-dark: #2f855a;
  --secondary: #86efac;
  --shadow: 0 20px 60px rgba(17, 17, 17, 0.08);
  --radius: 28px;
  --container: 1200px;
  --header-height: 88px;
  --transition: 220ms ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Pretendard', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(56, 161, 105, 0.35);
  outline-offset: 3px;
}

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

.section {
  padding: 104px 0;
  scroll-margin-top: 110px;
}

.surface-alt {
  background: var(--surface-alt);
}

.surface-accent {
  background: linear-gradient(180deg, rgba(217, 251, 232, 0.65), rgba(255, 255, 255, 1));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.site-header.is-scrolled {
  border-color: var(--line);
  box-shadow: 0 10px 30px rgba(17, 17, 17, 0.06);
}

.nav-wrap {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-block;
  font-weight: 800;
  letter-spacing: -0.03em;
  font-family: 'Gloria Hallelujah', cursive;
}

.brand-text,
.footer-brand {
  font-size: 1.6rem;
  line-height: 1;
}

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

.site-nav a {
  position: relative;
  color: var(--muted);
  font-weight: 500;
  padding: 10px 12px;
  transition: color var(--transition);
}

.site-nav a:last-child {
  padding-right: 0;
}

.site-nav a:hover {
  color: var(--text);
}

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 0;
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: var(--text);
  transition: transform var(--transition), opacity var(--transition);
}

.hero {
  padding-top: 72px;
}

.hero-grid,
.two-column,
.contact-grid,
.footer-grid,
.volunteer-block {
  display: grid;
  gap: 32px;
}

.hero-grid {
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
}

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

h1 {
  font-size: clamp(2.8rem, 6vw, 5.1rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
  margin-bottom: 20px;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: -0.05em;
  margin-bottom: 12px;
}

h3 {
  font-size: 1.6rem;
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin-bottom: 10px;
}

.hero-subtitle {
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  color: var(--text);
  font-weight: 500;
  margin-bottom: 8px;
}

.section-kicker,
.ko,
.section p,
.contact-card p,
.framework-card p,
.program-card p,
.info-card p,
.site-footer p {
  color: var(--muted);
}

.ko {
  font-family: 'Pretendard', system-ui, sans-serif;
  word-break: keep-all;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.contact-actions {
  width: 100%;
}

.contact-actions .button {
  flex: 1 1 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 16px;
  font-weight: 700;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.button-primary {
  background: var(--primary);
  color: white;
}

.button-primary:hover {
  background: var(--primary-dark);
}

.button-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}

.button-secondary:hover {
  background: rgba(56, 161, 105, 0.08);
}

.scroll-hint {
  display: none;
}

.hero-card,
.info-card,
.framework-card,
.program-card,
.contact-card,
.map-card {
  background: var(--surface);
  border: 1px solid rgba(17, 17, 17, 0.08);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  min-height: 540px;
  position: relative;
  overflow: hidden;
  padding: 0;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.map-embed,
.hero-image {
  position: relative;
  height: 100%;
  min-height: 320px;
}

.hero-image,
.card-image {
  width: 100%;
  object-fit: cover;
  border-radius: calc(var(--radius) - 12px);
}

.hero-image {
  min-height: 500px;
  border-radius: var(--radius);
}

.card-image {
  border: 0;
}

.two-column {
  grid-template-columns: 0.85fr 1.15fr;
  align-items: start;
}

.section-heading {
  margin-bottom: 44px;
}

.centered {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 44px;
}

.card-grid {
  display: grid;
  gap: 24px;
}

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

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

.info-card,
.framework-card,
.program-card,
.contact-card {
  padding: 20px;
}

.info-card,
.framework-card,
.program-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.framework-card,
.program-card {
  overflow: hidden;
}

.card-image {
  aspect-ratio: 16 / 10;
  margin-bottom: 22px;
}

.icon-placeholder {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: 20px;
  background: rgba(56, 161, 105, 0.1);
  color: var(--primary);
  font-size: 1.5rem;
  margin-bottom: 18px;
}

.program-type,
.program-time,
.program-age {
  display: inline-block;
}

.framework-card h3,
.info-card h3,
.program-card .program-type,
.contact-card h3 {
  margin-bottom: 12px;
}

.framework-card h3 {
  color: #111111;
}

.program-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.program-card .program-type {
  font-size: 1.6rem;
  font-weight: 700;
  color: #111111;
  margin-bottom: 4px;
}

.program-time {
  font-size: 1.05rem;
  color: #111111;
  font-weight: 500;
  margin-bottom: 0;
}

.program-age {
  font-size: 1.05rem;
  color: #111111;
  font-weight: 500;
  margin-bottom: 0;
}

.program-details,
.program-copy {
  width: 100%;
}

.program-details {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 12px;
  margin-top: 14px;
}

.program-detail-box {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  background: transparent;
  border: 1px solid rgba(17, 17, 17, 0.08);
  border-radius: 18px;
  padding: 12px 14px;
}

.program-detail-box .program-age + .program-age,
.program-copy p + p {
  margin-top: 2px;
}

.volunteer-block {
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  padding: 40px;
  border-radius: var(--radius);
  border: 1px solid rgba(17, 17, 17, 0.08);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow);
}

.mission-copy,
.contact-card,
.volunteer-block > div:last-child {
  max-width: 68ch;
}

.contact-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  align-items: stretch;
  margin-bottom: 20px;
}

#contact {
  padding-top: 0;
}

.contact-card {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.contact-panel h3,
.contact-mini-card p,
.contact-value {
  margin-bottom: 0;
}

.contact-panel,
.contact-mini-card {
  padding: 0;
}

.contact-quick-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: 0;
}

.contact-card .contact-label,
.contact-card .contact-panel h3 {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.contact-card .contact-value {
  color: #111111;
  font-weight: 500;
}

.contact-actions {
  margin-top: 2px;
}

.map-card {
  min-height: 100%;
  padding: 20px;
}

.map-embed {
  width: 100%;
  min-height: 100%;
  border: 0;
  border-radius: calc(var(--radius) - 12px);
}

.site-footer {
  padding: 32px 0 24px;
  border-top: 1px solid var(--line);
  background: var(--surface);
}

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

.footer-grid .brand {
  margin-bottom: 12px;
}

.footer-bottom {
  padding-top: 0;
  margin-top: 18px;
}

.fade-up {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 960px) {
  :root {
    --header-height: 80px;
  }

  .hero-grid,
  .two-column,
  .contact-grid,
  .footer-grid,
  .volunteer-block,
  .program-grid,
  .framework-grid,
  .three-up {
    grid-template-columns: 1fr;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 20px;
    right: 20px;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity var(--transition), transform var(--transition);
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    width: 100%;
  }

  .nav-toggle {
    display: block;
  }

  .hero-card {
    min-height: 420px;
  }

  .hero-copy,
  #mission .section-heading,
  #mission .mission-copy {
    text-align: center;
  }

  .hero-actions {
    justify-content: center;
    margin-bottom: 60px;
  }

  #mission .section-heading,
  #mission .mission-copy {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-visual,
  .info-card,
  .framework-card,
  .program-card,
  .volunteer-block {
    width: min(100%, 42rem);
    margin-left: auto;
    margin-right: auto;
  }

  .contact-card,
  .map-card {
    width: min(100%, 42rem);
    max-width: 42rem;
    margin-left: auto;
    margin-right: auto;
  }

  #mission .section-heading {
    margin-bottom: 0px;
  }

  .map-embed {
    min-height: 420px;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 80px 0;
  }

  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .hero {
    padding-top: 64px;
    padding-bottom: 24px;
    min-height: calc(100svh - var(--header-height));
    display: flex;
    align-items: center;
    position: relative;
  }

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

  .hero-grid {
    min-height: calc(100svh - var(--header-height) - 88px);
  }

  .hero-copy {
    min-height: inherit;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }

  .hero-visual {
    display: none;
  }

  .hero-actions,
  .contact-actions {
    flex-direction: column;
  }

  .hero-actions {
    align-items: center;
  }

  .scroll-hint {
    display: inline-flex;
    position: absolute;
    left: 50%;
    bottom: max(20px, env(safe-area-inset-bottom));
    transform: translateX(-50%);
    align-items: center;
    color: var(--muted);
    animation: scrollHintFloat 1.8s ease-in-out infinite;
  }

  .scroll-hint-arrow {
    width: 12px;
    height: 12px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
  }

  .contact-quick-grid {
    grid-template-columns: 1fr;
  }

  .program-details {
    gap: 10px;
  }

  .button {
    width: 100%;
  }

  .info-card,
  .framework-card,
  .program-card,
  .contact-card,
  .volunteer-block {
    padding: 20px;
  }
}

@keyframes scrollHintFloat {
  0%,
  100% {
    transform: translateX(-50%) translateY(0);
    opacity: 0.8;
  }
  50% {
    transform: translateX(-50%) translateY(8px);
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .fade-up {
    opacity: 1;
    transform: none;
  }
}