.hero { min-height: calc(100vh - var(--header-height)); display: flex; align-items: center; padding: 120px 0 90px; overflow: hidden; position: relative; }
.hero::after { content: ""; position: absolute; inset: auto -10% -30% 45%; height: 520px; background: rgba(168,218,220,.12); filter: blur(80px); border-radius: 999px; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 72px; }
.hero h1 { margin: 14px 0 24px; font-size: clamp(46px, 7vw, 92px); line-height: .98; letter-spacing: -0.08em; }
.hero p { font-size: clamp(18px, 2vw, 24px); line-height: 1.65; color: rgba(255,255,255,.78); max-width: 640px; }
.hero-actions { display: flex; gap: 12px; margin-top: 34px; flex-wrap: wrap; }
.btn { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: 0 20px; border-radius: 999px; font-weight: 900; border: 1px solid transparent; }
.btn-primary { background: var(--color-mint); color: #082034; }
.btn-ghost { border-color: rgba(255,255,255,.28); color: #fff; }
.hero-card { border: 1px solid rgba(255,255,255,.16); background: rgba(255,255,255,.08); border-radius: var(--radius-xl); padding: 28px; box-shadow: 0 30px 80px rgba(0,0,0,.18); }
.metric-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 18px; }
.metric { border-radius: 20px; padding: 18px; background: rgba(255,255,255,.09); }
.metric strong { display: block; color: var(--color-mint); font-size: 28px; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 46px; }
.card { background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-lg); padding: 26px; box-shadow: 0 10px 30px rgba(21,44,70,.05); }
.card h3 { margin: 0 0 12px; font-size: 22px; letter-spacing: -0.04em; }
.card p { margin: 0; color: var(--color-muted); line-height: 1.75; }
.program-tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 44px; }
.program-card { min-height: 340px; display: flex; flex-direction: column; justify-content: space-between; border-radius: var(--radius-xl); padding: 30px; background: var(--color-navy); color: #fff; overflow: hidden; position: relative; }
.program-card:nth-child(2) { background: #203d60; }
.program-card:nth-child(3) { background: #10243b; }
.program-card ul { padding-left: 18px; line-height: 1.9; color: rgba(255,255,255,.78); }
.system-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 44px; }
.system-item { background: #fff; border-radius: var(--radius-lg); padding: 22px; border: 1px solid var(--color-line); }
.book-row { display: grid; grid-template-columns: .7fr 1.3fr; gap: 34px; align-items: start; margin-top: 44px; }
.book-cover { border-radius: var(--radius-xl); background: var(--color-navy); color: var(--color-mint); min-height: 440px; padding: 34px; display: flex; flex-direction: column; justify-content: space-between; box-shadow: var(--shadow-soft); }
.book-cover strong { font-size: 56px; letter-spacing: -0.08em; }
.book-list { display: grid; gap: 14px; }
.book-item { display: flex; justify-content: space-between; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--color-line); }
.teacher-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 44px; }
.teacher-card { background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-lg); padding: 22px; min-height: 180px; }
.teacher-card small { color: var(--color-muted); }
.teacher-photo { width: 76px; height: 76px; border-radius: 50%; object-fit: cover; display: block; margin-bottom: 14px; border: 1px solid var(--color-line); }

/* 갤러리 (사진·영상) */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 44px; }
.gallery-item { margin: 0; background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-lg); overflow: hidden; box-shadow: 0 10px 30px rgba(21,44,70,.05); }
.gallery-img img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; }
.gallery-video { position: relative; width: 100%; aspect-ratio: 16 / 9; background: #000; }
.gallery-video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.gallery-item figcaption { padding: 14px 18px; color: var(--color-muted); font-size: 14px; line-height: 1.6; }
.notice-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 44px; }
.notice-card { border-radius: var(--radius-lg); padding: 24px; background: #fff; border: 1px solid var(--color-line); box-shadow: 0 10px 30px rgba(21,44,70,.05); }
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
.contact-form { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.15); border-radius: var(--radius-xl); padding: 26px; display: grid; gap: 14px; }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.field label { display: block; margin-bottom: 8px; color: rgba(255,255,255,.76); font-weight: 700; }
.field input, .field select, .field textarea { width: 100%; border: 1px solid rgba(255,255,255,.16); border-radius: 14px; padding: 14px 15px; background: rgba(255,255,255,.10); color: #fff; outline: none; }
.field option { color: #111; }
.field textarea { min-height: 120px; resize: vertical; }
.submit-note { color: rgba(255,255,255,.58); font-size: 13px; line-height: 1.6; }
@media (max-width: 980px) {
  .hero-grid, .book-row, .contact-grid { grid-template-columns: 1fr; }
  .card-grid, .program-tabs, .notice-grid { grid-template-columns: 1fr; }
  .system-list, .teacher-grid, .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .system-list, .teacher-grid, .gallery-grid, .metric-grid, .form-row { grid-template-columns: 1fr; }
  .hero { padding-top: 86px; }
  .book-cover { min-height: 320px; }
}