:root {
  --navy: #071524;
  --navy-soft: #0e2437;
  --ink: #101b25;
  --paper: #f2f0e9;
  --white: #fbfbf8;
  --gold: #d2ae6c;
  --gold-deep: #b58b48;
  --blue: #5f8297;
  --slate: #64727b;
  --line: rgba(16, 27, 37, .16);
  --shell: min(1180px, calc(100% - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Pretendard, SUIT, "Noto Sans KR", "Apple SD Gothic Neo", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  word-break: keep-all;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button, select, textarea { font: inherit; }
img { display: block; max-width: 100%; }
.page-shell { width: var(--shell); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 999; padding: 10px 16px; background: white; color: var(--navy); border-radius: 4px; }
.skip-link:focus { top: 12px; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 100; color: white; transition: background .25s, border-color .25s; border-bottom: 1px solid transparent; }
.site-header.scrolled { background: rgba(7,21,36,.94); backdrop-filter: blur(16px); border-color: rgba(255,255,255,.12); }
.nav-shell { width: var(--shell); height: 82px; margin-inline: auto; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 750; letter-spacing: .12em; }
.brand-mark { width: 32px; height: 32px; display: grid; place-items: center; border: 1px solid var(--gold); color: var(--gold); font-family: Georgia, serif; font-size: 19px; line-height: 1; }
.brand-name { font-size: 16px; }
.brand-note { margin-left: 1px; padding-left: 12px; border-left: 1px solid rgba(255,255,255,.34); color: rgba(255,255,255,.58); font-size: 10px; letter-spacing: .23em; }
.primary-nav { display: flex; align-items: center; gap: 34px; font-size: 14px; }
.primary-nav a { color: rgba(255,255,255,.76); transition: color .2s; }
.primary-nav a:hover, .primary-nav a:focus-visible { color: white; }
.primary-nav .nav-cta { padding: 10px 17px; border: 1px solid rgba(255,255,255,.4); color: white; }
.menu-button { display: none; width: 42px; height: 42px; background: transparent; border: 1px solid rgba(255,255,255,.25); padding: 11px; }
.menu-button span:not(.sr-only) { display: block; height: 1px; margin: 4px 0; background: white; }

.hero { position: relative; min-height: 830px; height: 100svh; max-height: 980px; display: flex; align-items: center; overflow: hidden; background: var(--navy); color: white; }
.hero-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; opacity: .78; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(7,21,36,.98) 0%, rgba(7,21,36,.9) 38%, rgba(7,21,36,.36) 73%, rgba(7,21,36,.25) 100%), linear-gradient(0deg, rgba(7,21,36,.65), transparent 55%); }
.hero-content { position: relative; z-index: 2; padding-top: 94px; }
.eyebrow { margin: 0 0 24px; color: var(--gold); font-size: 12px; font-weight: 700; letter-spacing: .22em; }
.eyebrow-dark { color: var(--gold-deep); }
.hero h1 { max-width: 820px; margin: 0; font-family: "Noto Serif KR", "Nanum Myeongjo", Batang, serif; font-size: clamp(42px, 5vw, 72px); font-weight: 500; line-height: 1.28; letter-spacing: -.045em; }
.hero h1 em, .principle h2 em { color: var(--gold); font-style: normal; }
.hero-copy { max-width: 650px; margin: 28px 0 0; color: rgba(255,255,255,.72); font-size: 18px; line-height: 1.85; }
.hero-actions { display: flex; align-items: center; gap: 30px; margin-top: 38px; }
.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 24px; border: 0; border-radius: 0; cursor: pointer; font-weight: 700; transition: transform .2s, background .2s, color .2s; }
.button:hover { transform: translateY(-2px); }
.button-gold { background: var(--gold); color: var(--navy); }
.button-gold:hover { background: #dfbf84; }
.text-link { padding: 9px 2px; border-bottom: 1px solid rgba(255,255,255,.45); font-size: 15px; }
.hero-facts { display: flex; gap: 0; margin: 62px 0 0; }
.hero-facts div { min-width: 185px; padding-right: 36px; margin-right: 36px; border-right: 1px solid rgba(255,255,255,.18); }
.hero-facts div:last-child { border-right: 0; }
.hero-facts dt { color: var(--gold); font-family: Georgia, serif; font-size: 25px; line-height: 1.2; }
.hero-facts dd { margin: 8px 0 0; color: rgba(255,255,255,.58); font-size: 13px; }
.scroll-note { position: absolute; right: 26px; bottom: 48px; z-index: 2; color: rgba(255,255,255,.4); font-size: 10px; letter-spacing: .24em; writing-mode: vertical-rl; }

.section-light, .section-paper, .section-navy, .section-gold { padding: 128px 0; }
.section-light { background: var(--white); }
.section-paper { background: var(--paper); }
.section-navy { background: var(--navy); color: white; }
.section-gold { background: var(--gold); }
.section-heading { margin-bottom: 64px; }
.section-heading h2, .principle h2, .fit h2, .faq h2, .contact h2 { margin: 0; font-family: "Noto Serif KR", "Nanum Myeongjo", Batang, serif; font-size: clamp(36px, 4vw, 57px); font-weight: 500; line-height: 1.32; letter-spacing: -.04em; }
.section-heading > p:last-child { max-width: 590px; margin: 22px 0 0; color: #5d6870; }
.heading-split { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: end; }
.heading-split > p { margin: 0 0 8px; color: #5d6870; }
.heading-inverse > p { color: rgba(255,255,255,.62); }

.profile-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.profile-card { min-height: 440px; display: grid; grid-template-columns: 230px 1fr; background: #fff; border: 1px solid var(--line); }
.profile-card.profile-lead { grid-column: 1 / -1; grid-template-columns: 300px 1fr; }
.profile-visual { position: relative; min-height: 100%; overflow: hidden; background: var(--navy); color: white; }
.profile-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(7,21,36,.08) 55%, rgba(7,21,36,.55) 100%); pointer-events: none; }
.profile-photo { width: 100%; height: 100%; object-fit: cover; object-position: left center; }
.visual-blue { background: #3e6074; }
.visual-slate { background: #485860; }
.profile-number { position: absolute; z-index: 2; top: 20px; left: 22px; width: 34px; height: 34px; display: grid; place-items: center; color: white; background: rgba(7,21,36,.72); border: 1px solid rgba(255,255,255,.3); font-family: Georgia, serif; font-size: 13px; }
.profile-body { padding: 38px 36px 40px; }
.profile-role { margin: 0 0 9px; color: var(--gold-deep); font-size: 11px; font-weight: 750; letter-spacing: .18em; }
.profile-body h3 { margin: 0 0 23px; font-size: 27px; letter-spacing: -.03em; }
.profile-body h3 span { margin-left: 5px; color: #68747c; font-size: 14px; font-weight: 500; }
.profile-body ul { margin: 0; padding: 0; list-style: none; }
.profile-body li { position: relative; margin-top: 9px; padding-left: 13px; color: #4e5b64; font-size: 14px; line-height: 1.55; }
.profile-body li::before { content: ""; position: absolute; left: 0; top: .7em; width: 4px; height: 4px; background: var(--gold-deep); border-radius: 50%; }

.principle-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 110px; align-items: start; }
.principle-copy { padding-top: 42px; }
.principle-copy > p { margin: 0; color: #4d5961; font-size: 18px; line-height: 2; }
.principle-copy blockquote { margin: 44px 0 0; padding: 24px 0 24px 26px; border-left: 2px solid var(--gold-deep); font-family: "Noto Serif KR", Batang, serif; font-size: 23px; line-height: 1.6; }

.program-list { border-top: 1px solid var(--line); }
.program-list article { display: grid; grid-template-columns: 80px .9fr 1.1fr; gap: 34px; align-items: start; padding: 42px 0; border-bottom: 1px solid var(--line); }
.program-index { color: var(--gold-deep); font-family: Georgia, serif; font-size: 17px; }
.program-kicker { margin: 0 0 8px; color: #758087; font-size: 12px; font-weight: 700; }
.program-list h3 { margin: 0; font-size: 24px; letter-spacing: -.03em; }
.program-list article > p { margin: 0; color: #5d6870; }

.method-steps { display: grid; grid-template-columns: repeat(4, 1fr); margin: 70px 0 0; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.18); }
.method-steps li { padding: 30px 28px 18px 0; border-right: 1px solid rgba(255,255,255,.14); }
.method-steps li + li { padding-left: 28px; }
.method-steps li:last-child { border-right: 0; }
.method-steps span { color: var(--gold); font-family: Georgia, serif; font-size: 15px; }
.method-steps h3 { margin: 58px 0 12px; font-size: 20px; }
.method-steps p { margin: 0; color: rgba(255,255,255,.56); font-size: 14px; }

.fit-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 100px; }
.fit-title-wrap { position: sticky; top: 122px; align-self: start; }
.fit-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.fit-list li { display: grid; grid-template-columns: 58px 1fr; gap: 18px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.fit-list span { color: var(--gold-deep); font-family: Georgia, serif; }
.fit-list p { margin: 0; font-size: 18px; line-height: 1.75; }

.faq-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 110px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 25px 44px 25px 0; cursor: pointer; list-style: none; font-size: 18px; font-weight: 650; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { position: absolute; top: 24px; right: 5px; color: var(--gold-deep); font-size: 24px; font-weight: 300; transition: transform .2s; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details p { margin: -4px 0 25px; padding-right: 42px; color: #5e6a72; }

.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; }
.contact-intro > p:not(.eyebrow) { max-width: 520px; margin: 25px 0 34px; color: rgba(7,21,36,.72); }
.button-navy { background: var(--navy); color: white; }
.button-navy:hover { background: var(--navy-soft); }
.contact-form { padding: 38px; background: rgba(255,255,255,.35); border: 1px solid rgba(7,21,36,.2); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contact-form label { display: block; margin-bottom: 20px; color: var(--navy); font-size: 13px; font-weight: 750; }
.contact-form select, .contact-form textarea { width: 100%; margin-top: 8px; padding: 14px 15px; color: var(--ink); background: rgba(255,255,255,.72); border: 1px solid rgba(7,21,36,.22); border-radius: 0; outline: 0; }
.contact-form select:focus, .contact-form textarea:focus { border-color: var(--navy); box-shadow: 0 0 0 2px rgba(7,21,36,.1); }
.contact-form textarea { min-height: 122px; resize: vertical; }
.form-submit { width: 100%; }
.form-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.button-kakao { background: #fee500; color: #191919; }
.button-kakao:hover { background: #ffeb34; }
.form-help, .form-status { margin: 12px 0 0; color: rgba(7,21,36,.65); font-size: 12px; }
.form-status { min-height: 20px; font-weight: 700; }

.kakao-float { position: fixed; z-index: 80; right: 24px; bottom: 24px; display: flex; align-items: center; gap: 10px; padding: 11px 17px 11px 10px; color: #191919; background: #fee500; border: 1px solid rgba(25,25,25,.12); box-shadow: 0 12px 34px rgba(5,15,25,.2); font-size: 13px; transition: transform .2s, box-shadow .2s; }
.kakao-float:hover { transform: translateY(-3px); box-shadow: 0 16px 38px rgba(5,15,25,.28); }
.kakao-float span { width: 34px; height: 34px; display: grid; place-items: center; background: #191919; color: #fee500; border-radius: 50%; font-family: Georgia, serif; font-size: 9px; letter-spacing: .07em; }
.kakao-float strong { font-weight: 750; }

.site-footer { padding: 72px 0 26px; background: #050f19; color: white; }
.footer-grid { display: grid; grid-template-columns: 1fr .55fr 1fr; gap: 75px; padding-bottom: 58px; }
.brand-footer { margin-bottom: 18px; }
.brand-footer + p, .footer-grid > div:last-child p:last-child { color: rgba(255,255,255,.48); font-size: 13px; }
.footer-label { margin: 0 0 16px; color: var(--gold); font-size: 10px; font-weight: 750; letter-spacing: .2em; }
.footer-grid > div:nth-child(2) a { display: block; width: fit-content; margin: 5px 0; color: rgba(255,255,255,.72); font-size: 14px; }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.34); font-size: 11px; }

@media (max-width: 900px) {
  :root { --shell: min(100% - 34px, 720px); }
  .nav-shell { height: 70px; }
  .brand-note { display: none; }
  .menu-button { display: block; }
  .primary-nav { position: absolute; top: 70px; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 8px 17px 20px; background: rgba(7,21,36,.98); border-top: 1px solid rgba(255,255,255,.1); }
  .primary-nav.open { display: flex; }
  .primary-nav a { padding: 13px 8px; }
  .primary-nav .nav-cta { margin-top: 5px; text-align: center; }
  .hero { min-height: 780px; max-height: none; }
  .hero-image { object-position: 63% center; opacity: .62; }
  .hero-shade { background: linear-gradient(90deg, rgba(7,21,36,.98), rgba(7,21,36,.7)), linear-gradient(0deg, rgba(7,21,36,.86), transparent); }
  .hero-content { padding-top: 75px; }
  .hero h1 { font-size: clamp(39px, 10vw, 56px); }
  .hero-copy { font-size: 16px; }
  .hero-facts div { min-width: 0; flex: 1; padding-right: 15px; margin-right: 15px; }
  .scroll-note { display: none; }
  .section-light, .section-paper, .section-navy, .section-gold { padding: 92px 0; }
  .heading-split, .principle-grid, .fit-grid, .faq-grid, .contact-grid { grid-template-columns: 1fr; gap: 42px; }
  .heading-split { align-items: start; }
  .profile-grid { grid-template-columns: 1fr; }
  .profile-card, .profile-card.profile-lead { grid-column: auto; grid-template-columns: 220px 1fr; }
  .principle-copy { padding-top: 0; }
  .program-list article { grid-template-columns: 50px 1fr; }
  .program-list article > p { grid-column: 2; }
  .method-steps { grid-template-columns: repeat(2, 1fr); }
  .method-steps li:nth-child(2) { border-right: 0; }
  .method-steps li:nth-child(3), .method-steps li:nth-child(4) { border-top: 1px solid rgba(255,255,255,.14); }
  .fit-title-wrap { position: static; }
}

@media (max-width: 600px) {
  body { word-break: normal; }
  .hero { min-height: 760px; height: auto; padding: 122px 0 58px; }
  .hero-content { padding-top: 0; }
  .hero h1 br { display: none; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 14px; margin-top: 30px; }
  .hero-facts { margin-top: 48px; flex-direction: column; gap: 16px; }
  .hero-facts div { width: 100%; padding: 0 0 16px; margin: 0; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.15); }
  .hero-facts div:last-child { border-bottom: 0; }
  .section-heading { margin-bottom: 44px; }
  .section-heading h2, .principle h2, .fit h2, .faq h2, .contact h2 { font-size: 36px; }
  .profile-card, .profile-card.profile-lead { min-height: 0; grid-template-columns: 1fr; }
  .profile-visual { min-height: 0; aspect-ratio: 2 / 3; }
  .profile-body { padding: 28px 24px 32px; }
  .program-list article { grid-template-columns: 40px 1fr; gap: 18px; padding: 32px 0; }
  .method-steps { grid-template-columns: 1fr; }
  .method-steps li, .method-steps li + li { padding: 25px 0; border-right: 0; border-top: 1px solid rgba(255,255,255,.14); }
  .method-steps li:first-child { border-top: 0; }
  .method-steps h3 { margin-top: 25px; }
  .faq-list summary { font-size: 16px; }
  .contact-form { padding: 25px 20px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .form-actions { grid-template-columns: 1fr; }
  .kakao-float { right: 16px; bottom: 16px; padding-right: 12px; }
  .kakao-float strong { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}