:root {
  font-family: "Noto Sans KR", "Malgun Gothic", "Apple SD Gothic Neo", Arial, sans-serif;
  color: #0b2238;
  background: #fff;
  font-synthesis: none;
  --navy: #071b2d;
  --navy-2: #0b2a43;
  --aqua: #25d0ce;
  --line: #d9e3e9;
  --muted: #5c6c78;
  --shell: min(1180px, calc(100vw - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; }
body.modal-open { overflow: hidden; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
img { display: block; max-width: 100%; }
.svg-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
[hidden] { display: none !important; }
.shell { width: var(--shell); margin-inline: auto; }
.section { padding: 116px 0; scroll-margin-top: 76px; }

.hero { min-height: 760px; height: 100svh; max-height: 940px; color: #fff; position: relative; isolation: isolate; overflow: hidden; background: var(--navy); }
.hero-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -3; }
.hero-scrim { position: absolute; inset: 0; z-index: -2; background: linear-gradient(90deg, rgba(3,18,31,.9) 0%, rgba(3,18,31,.62) 42%, rgba(3,18,31,.08) 76%); }
.hero::after { content: ""; position: absolute; inset: auto 0 0; height: 30%; z-index: -1; background: linear-gradient(transparent, rgba(3,18,31,.35)); }
.site-header { width: var(--shell); height: 92px; margin: auto; display: flex; align-items: center; justify-content: space-between; position: relative; z-index: 20; }
.brand { display: flex; align-items: center; gap: 12px; color: #fff; background: none; border: 0; font-weight: 800; font-size: 20px; letter-spacing: -.04em; }
.brand-wave { display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid rgba(255,255,255,.42); color: var(--aqua); font: 700 14px Inter; transform: skew(-8deg); }
.nav { display: flex; gap: clamp(18px, 2.2vw, 34px); }
.nav button { color: rgba(255,255,255,.9); border: 0; background: transparent; font-size: 14px; padding: 12px 0; position: relative; }
.nav button::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 5px; height: 2px; background: var(--aqua); transition: right .25s; }
.nav button:hover::after, .nav button:focus-visible::after { right: 0; }
.mobile-menu { display: none; border: 0; color: #fff; background: none; }
.hero-content { padding-top: clamp(100px, 15vh, 160px); }
.hero-name { margin: 0 0 24px; font-size: clamp(18px, 1.5vw, 24px); font-weight: 700; }
.hero h1 { margin: 0; max-width: 1100px; font-size: clamp(42px, 5vw, 70px); line-height: 1.16; letter-spacing: -.06em; }
.hero h1 strong { color: var(--aqua); font-weight: 800; }
.hero-copy { margin: 32px 0; font-size: clamp(16px, 1.5vw, 20px); line-height: 1.8; color: rgba(255,255,255,.82); }
.hero-actions { display: flex; align-items: center; gap: 28px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 22px; min-height: 56px; padding: 0 24px; border: 1px solid transparent; font-weight: 700; }
.primary { color: #061b2d; background: var(--aqua); }
.primary:hover { background: #52e5e1; }
.text-link { display: inline-flex; align-items: center; gap: 24px; background: none; border: 0; border-bottom: 1px solid #83919c; padding: 0 0 10px; color: var(--navy); font-weight: 700; }
.hero-link { color: #fff; border-color: rgba(255,255,255,.55); }
.hero-meta { position: absolute; bottom: 38px; left: 50%; transform: translateX(-50%); display: flex; justify-content: flex-end; gap: 34px; }
.hero-meta span { font: 600 11px Inter; color: rgba(255,255,255,.62); padding-left: 20px; border-left: 1px solid rgba(255,255,255,.25); }
.hero-meta b { display: block; color: #fff; font-size: 20px; }

.section-title > span { display: block; color: #00aebb; font: 700 12px Inter; letter-spacing: .07em; margin-bottom: 16px; }
.section-title h2 { margin: 0; font-size: clamp(34px, 4vw, 54px); line-height: 1.2; letter-spacing: -.06em; }
.section-title.light h2 { color: #fff; }
.lead { font-size: 19px; line-height: 1.75; color: #29465a; font-weight: 500; }

.about { display: grid; grid-template-columns: .78fr 1.22fr; gap: 90px; align-items: center; }
.about-copy > p:not(.lead) { color: var(--muted); line-height: 1.9; margin: 20px 0 30px; }
.about-visual { position: relative; min-height: 440px; overflow: hidden; }
.about-visual img { width: 100%; height: 440px; object-fit: cover; }
.lane-mark { position: absolute; right: 0; bottom: 0; width: 150px; height: 150px; background: var(--navy); color: #fff; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.lane-mark span { color: var(--aqua); font: 700 38px Inter; }
.lane-mark small { font: 600 10px Inter; }

.benefit-band { background: #eef7f9; }
.benefits { display: grid; grid-template-columns: repeat(4, 1fr); }
.benefit { min-height: 210px; padding: 46px 26px; display: grid; grid-template-columns: auto 1fr; gap: 12px 16px; align-items: center; border-left: 1px solid #cfdee3; position: relative; }
.benefit:last-child { border-right: 1px solid #cfdee3; }
.benefit-number { position: absolute; top: 20px; right: 24px; color: #9fb2ba; font: 600 11px Inter; }
.benefit > svg { color: #00aebb; width: 30px; height: 30px; }
.benefit h3 { margin: 0 0 7px; font-size: 19px; }
.benefit p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.65; }

.coaches { background: #f8fbfc; overflow: hidden; }
.split-heading { display: grid; grid-template-columns: 1.2fr .8fr; align-items: end; gap: 30px; margin-bottom: 54px; }
.split-heading > p { color: var(--muted); line-height: 1.8; max-width: 380px; justify-self: end; }
.coach-rail { display: grid; grid-template-columns: repeat(3, 1fr) .75fr; min-height: 410px; }
.coach { position: relative; overflow: hidden; background: #dce5e9; border-right: 1px solid rgba(255,255,255,.7); }
.coach-portrait { height: 270px; display: grid; place-items: center; background: linear-gradient(145deg, #dfe8ec, #9cabb4); }
.coach-portrait img { width: 100%; height: 100%; object-fit: cover; }
.coach-portrait span { width: 126px; height: 126px; border: 1px solid rgba(7,27,45,.2); display: grid; place-items: center; border-radius: 50%; color: rgba(7,27,45,.3); font: 800 38px Inter; }
.coach > div:last-child { padding: 24px; }
.coach small { color: #00aebb; font: 700 10px Inter; }
.coach h3 { margin: 8px 0; font-size: 18px; }
.coach p { margin: 0; color: var(--muted); font-size: 13px; }
.coach p b { color: var(--navy); font-weight: 700; }
.coach-more { border: 0; background: var(--navy); color: #fff; display: flex; flex-direction: column; align-items: flex-start; justify-content: end; gap: 20px; padding: 32px; font-weight: 700; }
.coach-more svg { color: var(--aqua); }
.profile-disclaimer { margin: 18px 0 0; color: #7a8993; font-size: 11px; line-height: 1.6; }

.facility { display: grid; grid-template-columns: 1.1fr .9fr; gap: 84px; align-items: center; }
.facility-photo { position: relative; min-height: 600px; overflow: hidden; background: var(--navy); }
.facility-photo img { width: 100%; height: 600px; object-fit: cover; object-position: 60% center; }
.facility-photo p { position: absolute; left: 32px; bottom: 24px; margin: 0; color: #fff; font: 700 13px/1.3 Inter; }
.facility-photo p span { color: var(--aqua); font-size: 46px; }
.facility-copy > .lead { margin: 28px 0 34px; }
.facility-list { border-top: 1px solid var(--line); }
.facility-list > div { display: grid; grid-template-columns: 34px 1fr; gap: 20px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.facility-list svg { color: #00aebb; }
.facility-list h3 { margin: 0 0 6px; font-size: 17px; }
.facility-list p { margin: 0; color: var(--muted); font-size: 14px; }

.facility-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; padding-bottom: 116px; }
.facility-gallery figure { margin: 0; position: relative; min-height: 280px; overflow: hidden; background: var(--navy); }
.facility-gallery img { width: 100%; height: 320px; object-fit: cover; transition: transform .5s ease; }
.facility-gallery figure:hover img { transform: scale(1.025); }
.facility-gallery figcaption { position: absolute; left: 26px; right: 26px; bottom: 22px; color: var(--aqua); font: 700 10px/1.5 Arial, sans-serif; letter-spacing: .08em; text-shadow: 0 2px 16px rgba(0,0,0,.7); }
.facility-gallery figcaption strong { display: block; color: #fff; font: 700 18px/1.5 "Noto Sans KR", "Malgun Gothic", sans-serif; letter-spacing: -.03em; }

.location { background: #eef7f9; }
.location-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 72px; align-items: center; }
.placeholder-note { color: var(--muted); line-height: 1.7; }
.location-info { list-style: none; padding: 18px 0 0; margin: 0; }
.location-info li { display: flex; align-items: center; gap: 16px; margin: 18px 0; color: var(--muted); }
.location-info svg { width: 20px; color: #00aebb; }
.location-info b { display: block; color: var(--navy); font-size: 13px; margin-bottom: 2px; }
.map-link { display: inline-flex; align-items: center; gap: 16px; margin-top: 8px; padding: 14px 18px; background: var(--navy); color: #fff; text-decoration: none; font-size: 13px; font-weight: 700; }
.map-link svg { width: 18px; color: var(--aqua); }
.map-embed { min-height: 430px; overflow: hidden; background: #dce8ec; box-shadow: 0 20px 60px rgba(7,27,45,.1); }
.map-embed iframe { display: block; width: 100%; height: 430px; border: 0; }

.contact { background-color: var(--navy); color: rgba(255,255,255,.7); background-image: radial-gradient(circle at 15% 60%, rgba(37,208,206,.08), transparent 30%); }
.contact-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 80px; }
.contact-grid > div > p { line-height: 1.8; }
.contact-promise { display: flex; align-items: center; gap: 10px; color: var(--aqua); margin-top: 30px; font-size: 14px; }
.contact form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact label { display: flex; flex-direction: column; gap: 8px; }
.contact label > span { font-size: 12px; color: rgba(255,255,255,.72); }
.contact input, .contact select, .contact textarea { width: 100%; color: #fff; background: rgba(255,255,255,.035); border: 1px solid rgba(255,255,255,.35); border-radius: 0; padding: 15px 16px; outline: none; }
.contact input:focus, .contact select:focus, .contact textarea:focus { border-color: var(--aqua); }
.contact select option { color: var(--navy); }
.contact .full { grid-column: 1 / -1; }
.contact .agree { flex-direction: row; align-items: center; font-size: 12px; }
.agree input { width: 16px; height: 16px; }
.agree button { border: 0; background: none; color: var(--aqua); font-size: 12px; }
.submit { background: var(--aqua); color: var(--navy); }
.success { display: flex; align-items: center; gap: 10px; background: rgba(37,208,206,.12); color: #8ff3ee; padding: 14px 18px; }

.notice .section-title { margin-bottom: 45px; }
.notice-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 64px; }
.event-feature { min-height: 350px; position: relative; overflow: hidden; padding: 0; border: 0; background: var(--navy); color: #fff; text-align: left; }
.event-feature::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 35%, rgba(3,18,31,.88) 100%); }
.event-feature img { width: 100%; height: 350px; object-fit: cover; object-position: center; transition: transform .45s ease; }
.event-feature:hover img { transform: scale(1.025); }
.event-badge { position: absolute; z-index: 1; left: 20px; top: 20px; padding: 9px 12px; background: var(--aqua); color: var(--navy); font: 800 11px Arial, sans-serif; letter-spacing: .05em; }
.event-copy { position: absolute; z-index: 1; left: 26px; right: 26px; bottom: 24px; }
.event-copy b { display: block; font-size: 23px; letter-spacing: -.04em; }
.event-copy small { display: block; margin-top: 7px; color: rgba(255,255,255,.72); }
.notice-list { border-top: 2px solid var(--navy); }
.notice-list button { width: 100%; display: grid; grid-template-columns: 70px 1fr auto 20px; align-items: center; gap: 18px; text-align: left; background: #fff; border: 0; border-bottom: 1px solid var(--line); padding: 26px 8px; color: var(--navy); }
.notice-list button:hover { background: #f5fafb; }
.notice-type { color: #00aebb; font: 700 10px Inter; }
.notice-list time { color: #84939c; font-size: 12px; }

footer { background: #041421; color: rgba(255,255,255,.58); padding: 44px 0; }
.footer-grid { display: grid; grid-template-columns: .7fr 1.4fr .9fr; align-items: center; gap: 30px; }
.footer-brand { color: #fff; font-weight: 800; font-size: 18px; }
.footer-brand small { display: block; margin-top: 4px; color: var(--aqua); font: 600 9px Inter; }
footer p { font-size: 12px; line-height: 1.7; }
.footer-links { display: flex; justify-content: end; gap: 12px; }
.footer-links button { color: rgba(255,255,255,.75); background: transparent; border: 1px solid rgba(255,255,255,.24); min-width: 40px; height: 40px; padding: 0 13px; }
.footer-links svg { width: 17px; }

.modal { position: fixed; inset: 0; z-index: 1000; display: none; place-items: center; padding: 24px; background: rgba(2,13,22,.72); backdrop-filter: blur(5px); }
.modal.is-active { display: grid; }
.modal-panel { width: min(520px, 100%); position: relative; background: #fff; color: var(--navy); padding: 46px; box-shadow: 0 30px 80px rgba(0,0,0,.28); }
.modal-panel h2 { margin: 0 48px 18px 0; font-size: 28px; letter-spacing: -.05em; }
.modal-panel p { margin: 0 0 28px; color: var(--muted); line-height: 1.8; }
.modal-close { position: absolute; top: 18px; right: 18px; display: grid; place-items: center; width: 40px; height: 40px; border: 1px solid var(--line); background: #fff; color: var(--navy); }
.modal-confirm { min-width: 120px; }
.event-modal-panel { width: min(860px, 100%); max-height: calc(100vh - 48px); overflow-y: auto; }
.event-modal-panel img { width: 100%; border: 1px solid var(--line); }
.event-modal-period { display: block; margin-bottom: 10px; color: #00aebb; font: 800 12px Arial, sans-serif; letter-spacing: .08em; }
.event-modal-panel .event-note { margin: 14px 0 24px; font-size: 12px; }

@media (max-width: 900px) {
  :root { --shell: min(100% - 36px, 680px); }
  .section { padding: 82px 0; }
  .site-header { height: 76px; }
  .mobile-menu { display: block; }
  .nav { display: none; position: absolute; left: -18px; right: -18px; top: 76px; padding: 18px; background: rgba(4,20,33,.98); flex-direction: column; gap: 0; }
  .nav.open { display: flex; }
  .nav button { text-align: left; padding: 14px 6px; }
  .hero { min-height: 720px; }
  .hero-content { padding-top: 130px; }
  .hero-meta { justify-content: flex-start; }
  .about, .facility, .location-grid, .contact-grid, .notice-layout { grid-template-columns: 1fr; gap: 50px; }
  .facility-gallery { padding-bottom: 82px; }
  .benefits { grid-template-columns: 1fr; }
  .benefit { border-right: 1px solid #cfdee3; border-bottom: 1px solid #cfdee3; }
  .split-heading { grid-template-columns: 1fr; }
  .split-heading > p { justify-self: start; }
  .coach-rail { grid-template-columns: repeat(3, minmax(240px, 1fr)) 210px; overflow-x: auto; }
  .facility-photo { order: 2; min-height: 440px; }
  .facility-photo img { height: 440px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-links { justify-content: start; }
}

@media (max-width: 560px) {
  :root { --shell: calc(100% - 32px); }
  .brand { font-size: 17px; }
  .brand-wave { width: 32px; height: 32px; }
  .hero { min-height: 700px; height: 100svh; }
  .hero-scrim { background: rgba(3,18,31,.67); }
  .hero-content { padding-top: 118px; }
  .hero h1 { font-size: 41px; }
  .hero-copy br { display: none; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 22px; }
  .hero-meta { bottom: 24px; gap: 18px; }
  .hero-meta span { padding-left: 12px; }
  .section-title h2 { font-size: 34px; }
  .about-visual, .about-visual img { height: 330px; min-height: 330px; }
  .lane-mark { width: 118px; height: 118px; }
  .contact form { grid-template-columns: 1fr; }
  .contact form > * { grid-column: 1 !important; }
  .notice-list button { grid-template-columns: 58px 1fr 18px; }
  .notice-list time { display: none; }
  .map-embed, .map-embed iframe { min-height: 340px; height: 340px; }
  .facility-gallery { grid-template-columns: 1fr; gap: 16px; }
  .facility-gallery img { height: 260px; }
  .modal-panel { padding: 38px 24px 28px; }
  .hero h1 { font-size: 36px; }
  .event-feature, .event-feature img { min-height: 300px; height: 300px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-video { display: none; }
}