:root {
  --bg: #f3efe8;
  --ink: #1a2430;
  --muted: #576372;
  --brand: #0f8a75;
  --brand-deep: #0b5f52;
  --card: #fffdf8;
  --line: rgba(26, 36, 48, 0.14);
  --shadow: 0 20px 40px rgba(20, 34, 45, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Space Grotesk", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 20% 10%, #f7d6b2 0%, transparent 35%),
    radial-gradient(circle at 80% 20%, #d8efe7 0%, transparent 30%),
    var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

h1,
h2,
h3 {
  margin: 0 0 0.8rem;
  font-family: "Noto Serif KR", serif;
  line-height: 1.25;
}

p {
  margin: 0;
}

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

.bg-orb {
  position: fixed;
  z-index: -1;
  border-radius: 50%;
  filter: blur(12px);
  opacity: 0.45;
}

.orb-a {
  width: 240px;
  height: 240px;
  top: -60px;
  left: -70px;
  background: #f4bb79;
}

.orb-b {
  width: 320px;
  height: 320px;
  right: -100px;
  bottom: -100px;
  background: #9fd5cb;
}

.site-header {
  width: min(1080px, calc(100% - 2.5rem));
  margin: 1.25rem auto 0;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 253, 248, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(160deg, var(--brand), var(--brand-deep));
  font-size: 0.9rem;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.95rem;
}

.nav-cta {
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--ink);
}

main {
  width: min(1080px, calc(100% - 2.5rem));
  margin: 2.25rem auto 5rem;
}

section {
  margin-bottom: 3.2rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.8rem);
  letter-spacing: -0.02em;
}

.hero h1 span {
  color: var(--brand-deep);
}

.eyebrow {
  display: inline-block;
  margin-bottom: 0.9rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero-copy {
  max-width: 680px;
  margin-top: 1rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-actions {
  margin-top: 1.7rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1.1rem;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(140deg, var(--brand), var(--brand-deep));
  box-shadow: 0 10px 18px rgba(15, 138, 117, 0.25);
}

.btn-ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.7);
}

.hero-badges {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.hero-badges li {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.35rem 0.7rem;
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.55);
}

.metrics {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metrics article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.2rem;
  box-shadow: var(--shadow);
}

.metrics h2 {
  margin-bottom: 0.2rem;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

.metrics p {
  color: var(--muted);
  font-size: 0.92rem;
}

.section-title-wrap {
  margin-bottom: 1rem;
}

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

.program-grid article,
.review-grid blockquote {
  margin: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.2rem;
  box-shadow: var(--shadow);
}

.program-grid p,
.review-grid p,
.contact p {
  color: var(--muted);
}

.review-grid cite {
  display: block;
  margin-top: 0.9rem;
  font-size: 0.9rem;
  color: #334557;
  font-style: normal;
}

.banner {
  border-radius: 20px;
  border: 1px solid rgba(11, 95, 82, 0.25);
  background: linear-gradient(120deg, #d2eee7, #fff3de);
  padding: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.banner p {
  font-family: "Noto Serif KR", serif;
  font-size: 1.15rem;
}

.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  align-items: start;
}

.contact-form {
  display: grid;
  gap: 0.75rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem;
  box-shadow: var(--shadow);
}

.contact-form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.9rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid #c9d0d8;
  border-radius: 10px;
  padding: 0.65rem 0.75rem;
  font: inherit;
  background: #fff;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid rgba(15, 138, 117, 0.35);
  outline-offset: 1px;
}

.site-footer {
  padding: 2rem 1rem 2.8rem;
  text-align: center;
  color: #47586a;
  font-size: 0.9rem;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 920px) {
  .top-nav {
    display: none;
  }

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

  .program-grid,
  .review-grid,
  .contact {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 560px) {
  .site-header,
  main {
    width: calc(100% - 1.2rem);
  }

  .hero h1 {
    font-size: 2rem;
  }

  .metrics {
    grid-template-columns: 1fr;
  }
}