:root {
  --navy-950: #041326;
  --navy-900: #071a33;
  --navy-800: #0b274a;
  --blue-600: #176bdf;
  --blue-500: #2785f5;
  --blue-100: #dcecff;
  --sky-50: #f2f8ff;
  --ink: #10233c;
  --muted: #5c6c80;
  --line: #dbe4ef;
  --white: #fff;
  --surface: #f7f9fc;
  --shadow: 0 22px 60px rgba(7, 26, 51, .12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
p, h1, h2, h3, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; }
img { max-width: 100%; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 1000; background: var(--white); color: var(--navy-900); padding: 10px 16px; border-radius: 8px; box-shadow: var(--shadow); }
.skip-link:focus { top: 16px; }

.site-header { position: absolute; inset: 0 0 auto; z-index: 20; color: var(--white); }
.header-inner { min-height: 86px; display: flex; align-items: center; justify-content: space-between; gap: 32px; border-bottom: 1px solid rgba(255,255,255,.14); }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 21px; font-weight: 700; letter-spacing: -.02em; }
.brand-mark { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; background: linear-gradient(145deg, var(--blue-500), #55c5ff); color: var(--white); font-size: 15px; font-weight: 800; letter-spacing: -.03em; box-shadow: 0 8px 25px rgba(39,133,245,.35); }
.brand-name { opacity: .98; }
.primary-nav { display: flex; align-items: center; gap: 32px; font-size: 14px; font-weight: 650; }
.primary-nav a { color: rgba(255,255,255,.8); transition: color .2s ease; }
.primary-nav a:hover, .primary-nav a:focus-visible { color: var(--white); }
.primary-nav .nav-contact { color: var(--white); border: 1px solid rgba(255,255,255,.28); border-radius: 999px; padding: 9px 17px; }
.primary-nav .nav-language { color: #9fd0ff; border: 1px solid rgba(159,208,255,.3); border-radius: 999px; padding: 6px 11px; font-size: 12px; font-weight: 800; letter-spacing: .04em; }

.hero { position: relative; overflow: hidden; color: var(--white); background: radial-gradient(circle at 75% 28%, #123f78 0, transparent 28%), linear-gradient(135deg, var(--navy-950), var(--navy-900) 52%, #0b315d); }
.hero::before { content: ""; position: absolute; width: 520px; height: 520px; left: -270px; bottom: -330px; border-radius: 50%; border: 90px solid rgba(39,133,245,.08); }
.hero-grid { position: absolute; inset: 0; opacity: .14; background-image: linear-gradient(rgba(255,255,255,.22) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.22) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(to right, transparent 3%, black 64%, transparent); }
.hero-layout { position: relative; min-height: 760px; display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 64px; padding-top: 112px; padding-bottom: 70px; }
.hero-copy { position: relative; z-index: 2; }
.eyebrow, .section-kicker { color: var(--blue-600); font-size: 12px; font-weight: 800; letter-spacing: .17em; text-transform: uppercase; }
.hero .eyebrow { color: #73b8ff; margin-bottom: 22px; }
.hero h1 { max-width: 760px; font-size: clamp(48px, 5.5vw, 76px); line-height: 1.12; letter-spacing: -.055em; font-weight: 760; }
.hero h1 span { color: #74b9ff; }
.hero-lead { max-width: 630px; margin-top: 28px; color: rgba(255,255,255,.72); font-size: 18px; line-height: 1.75; word-break: keep-all; }
.hero-actions { display: flex; gap: 12px; margin-top: 38px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 22px; border-radius: 10px; font-weight: 750; font-size: 15px; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--white); background: var(--blue-600); box-shadow: 0 12px 30px rgba(23,107,223,.3); }
.button-primary:hover { background: #0f5fcf; }
.button-secondary { color: var(--white); border: 1px solid rgba(255,255,255,.28); background: rgba(255,255,255,.06); }
.button-secondary:hover { border-color: rgba(255,255,255,.5); background: rgba(255,255,255,.1); }
.hero-facts { display: flex; flex-wrap: wrap; gap: 34px; margin-top: 52px; padding-top: 28px; border-top: 1px solid rgba(255,255,255,.13); }
.hero-facts div { min-width: 110px; }
.hero-facts dt { color: var(--white); font-size: 15px; font-weight: 800; }
.hero-facts dd { margin-top: 3px; color: rgba(255,255,255,.52); font-size: 12px; }

.hero-panel { position: relative; width: min(100%, 470px); aspect-ratio: 1; justify-self: end; border-radius: 50%; border: 1px solid rgba(126,190,255,.2); background: radial-gradient(circle, rgba(23,107,223,.25), rgba(4,19,38,.18) 58%, transparent 60%); }
.hero-panel::before, .hero-panel::after { content: ""; position: absolute; border-radius: 50%; border: 1px dashed rgba(126,190,255,.24); }
.hero-panel::before { inset: 12%; }
.hero-panel::after { inset: 29%; }
.core { position: absolute; inset: 34%; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; border-radius: 50%; background: linear-gradient(145deg, #1468d6, #0d3f7d); box-shadow: 0 0 65px rgba(39,133,245,.35); }
.core-label { margin-bottom: 8px; color: #a9d4ff; font-size: 11px; font-weight: 800; letter-spacing: .2em; }
.core strong { font-size: 15px; line-height: 1.35; }
.orbit { position: absolute; display: grid; place-items: center; width: 68px; height: 68px; border: 1px solid rgba(126,190,255,.3); border-radius: 20px; background: rgba(6,25,49,.82); box-shadow: 0 14px 35px rgba(0,0,0,.22); backdrop-filter: blur(10px); }
.orbit span { color: #c5e2ff; font-size: 13px; font-weight: 800; }
.orbit-a { left: 4%; top: 38%; }
.orbit-b { right: 9%; top: 10%; }
.orbit-c { right: 1%; bottom: 24%; }
.orbit-d { left: 21%; bottom: 2%; }
.signal { position: absolute; border-radius: 50%; background: var(--blue-500); box-shadow: 0 0 18px rgba(77,171,255,.9); }
.signal-one { width: 7px; height: 7px; top: 4%; left: 47%; }
.signal-two { width: 5px; height: 5px; left: 10%; bottom: 19%; }
.signal-three { width: 9px; height: 9px; right: 13%; top: 55%; }

.intro { padding: 105px 0; background: var(--white); }
.intro-layout { display: grid; grid-template-columns: 220px 1fr; gap: 60px; }
.intro h2 { max-width: 790px; font-size: clamp(34px, 4vw, 52px); line-height: 1.32; letter-spacing: -.045em; }
.intro h2 + p { max-width: 720px; margin-top: 24px; color: var(--muted); font-size: 18px; word-break: keep-all; }

.solutions { padding: 110px 0 120px; background: var(--surface); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 46px; }
.section-heading h2, .company h2, .contact h2, .expertise h2 { margin-top: 12px; font-size: clamp(34px, 4vw, 50px); line-height: 1.25; letter-spacing: -.045em; }
.section-heading > p { max-width: 520px; color: var(--muted); word-break: keep-all; }
.solution-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.solution-card { position: relative; min-height: 390px; overflow: hidden; padding: 36px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease; }
.solution-card:hover { transform: translateY(-5px); border-color: #b8d2f4; box-shadow: var(--shadow); }
.solution-card.featured { color: var(--white); border-color: transparent; background: linear-gradient(145deg, #0a2c52, #0b417b); }
.card-index { position: absolute; right: 30px; top: 28px; color: #9cabbc; font-size: 12px; font-weight: 800; }
.featured .card-index { color: rgba(255,255,255,.42); }
.card-icon { display: grid; place-items: center; width: 68px; height: 68px; margin-bottom: 35px; border-radius: 18px; color: var(--blue-600); background: var(--blue-100); font-size: 17px; font-weight: 850; letter-spacing: -.04em; }
.featured .card-icon { color: var(--white); background: rgba(255,255,255,.12); }
.card-icon.braces { color: #7b47c8; background: #eee5ff; font-size: 23px; }
.solution-card h3 { font-size: 25px; letter-spacing: -.025em; }
.solution-card > p { max-width: 500px; margin-top: 14px; color: var(--muted); word-break: keep-all; }
.featured > p { color: rgba(255,255,255,.68); }
.solution-card ul { display: grid; gap: 7px; margin-top: 26px; list-style: none; color: #42546a; font-size: 14px; }
.featured ul { color: rgba(255,255,255,.8); }
.solution-card li { position: relative; padding-left: 15px; }
.solution-card li::before { content: ""; position: absolute; left: 0; top: .72em; width: 5px; height: 5px; border-radius: 50%; background: var(--blue-500); }

.expertise { padding: 115px 0; color: var(--white); background: var(--navy-900); }
.expertise-layout { display: grid; grid-template-columns: 1fr .9fr; gap: 100px; align-items: start; }
.section-kicker.light { color: #77baff; }
.expertise-copy > p:not(.section-kicker) { max-width: 580px; margin-top: 24px; color: rgba(255,255,255,.64); font-size: 17px; word-break: keep-all; }
.text-link { display: inline-flex; align-items: center; gap: 12px; margin-top: 32px; color: #8bc5ff; font-weight: 750; }
.text-link span { transition: transform .2s ease; }
.text-link:hover span { transform: translateX(4px); }
.process-list { list-style: none; border-top: 1px solid rgba(255,255,255,.16); }
.process-list li { display: grid; grid-template-columns: 52px 1fr; gap: 20px; padding: 26px 0; border-bottom: 1px solid rgba(255,255,255,.16); }
.process-list li > span { color: #67aff7; font-size: 12px; font-weight: 800; }
.process-list strong { display: block; font-size: 19px; }
.process-list p { margin-top: 5px; color: rgba(255,255,255,.54); font-size: 14px; }

.company { padding: 115px 0; }
.company-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 100px; }
.company-copy { padding-top: 4px; }
.company-copy > p { color: var(--muted); font-size: 18px; word-break: keep-all; }
.company-copy > p + p { margin-top: 16px; }
.company-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 34px; }
.company-tags span { padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px; color: #42546a; background: var(--surface); font-size: 13px; font-weight: 700; }

.contact { padding: 0 0 100px; }
.contact-card { display: grid; grid-template-columns: 1.1fr .9fr; gap: 70px; padding: 64px; border-radius: var(--radius-lg); color: var(--white); background: linear-gradient(135deg, #0d5fc3, #123e72); box-shadow: 0 30px 80px rgba(11,65,123,.22); }
.contact-copy > p:not(.section-kicker) { max-width: 570px; margin-top: 20px; color: rgba(255,255,255,.7); word-break: keep-all; }
.button-light { margin-top: 30px; color: #0c4f9b; background: var(--white); }
.contact-form { position: relative; display: grid; gap: 16px; margin-top: 30px; }
.contact-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.contact-form label { display: grid; gap: 6px; }
.contact-form label > span { color: rgba(255,255,255,.78); font-size: 13px; font-weight: 700; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; min-width: 0; border: 1px solid rgba(255,255,255,.28); border-radius: 9px; color: var(--white); background: rgba(4,19,38,.34); font: inherit; font-size: 15px; }
.contact-form input, .contact-form select { height: 46px; padding: 0 12px; }
.contact-form textarea { min-height: 138px; padding: 10px 12px; resize: vertical; }
.contact-form select option { color: var(--ink); background: var(--white); }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: rgba(255,255,255,.45); }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: #a8d5ff; outline: 3px solid rgba(168,213,255,.22); }
.contact-honeypot { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.privacy-consent { display: grid !important; grid-template-columns: 18px 1fr; align-items: start; gap: 9px !important; }
.privacy-consent input { width: 17px; height: 17px; margin: 3px 0 0; accent-color: var(--white); }
.privacy-consent span { font-weight: 500 !important; line-height: 1.45; }
.contact-submit { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.contact-submit .button-light { margin-top: 0; border: 0; cursor: pointer; font-family: inherit; }
.contact-submit .button-light:disabled { cursor: wait; opacity: .65; transform: none; }
.contact-status { min-height: 24px; color: #d8edff; font-size: 14px; font-weight: 650; }
.contact-status.is-error { color: #ffe0e0; }
.contact-noscript { color: rgba(255,255,255,.76); font-size: 14px; }
.contact-noscript a { text-decoration: underline; }
.contact-details { display: grid; gap: 0; margin: 0; font-style: normal; border-top: 1px solid rgba(255,255,255,.18); }
.contact-details div { display: grid; grid-template-columns: 72px 1fr; gap: 15px; padding: 15px 0; border-bottom: 1px solid rgba(255,255,255,.18); }
.contact-details span { color: rgba(255,255,255,.52); font-size: 13px; }
.contact-details strong, .contact-details a { color: rgba(255,255,255,.92); font-size: 14px; font-weight: 650; }
.contact-details a:hover { text-decoration: underline; }

.site-footer { padding: 30px 0; color: #718096; background: var(--navy-950); font-size: 12px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 25px; }
.footer-brand { color: var(--white); font-size: 16px; font-weight: 750; }
.footer-brand span { display: inline-grid; place-items: center; width: 30px; height: 30px; margin-right: 6px; border-radius: 8px; background: var(--blue-600); font-size: 10px; }
.footer-inner > a { color: #a9b8c9; }

.error-page { min-height: 100vh; display: grid; place-items: center; padding: 40px 0; color: var(--white); background: radial-gradient(circle at 75% 25%, #123f78 0, transparent 30%), linear-gradient(135deg, var(--navy-950), var(--navy-900)); }
.error-card { width: min(calc(100% - 40px), 720px); padding: 64px; border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius-lg); background: rgba(255,255,255,.06); box-shadow: 0 30px 80px rgba(0,0,0,.24); backdrop-filter: blur(10px); }
.error-code { color: #78bdff; font-size: 13px; font-weight: 850; letter-spacing: .18em; text-transform: uppercase; }
.error-card h1 { margin-top: 14px; font-size: clamp(38px, 7vw, 64px); line-height: 1.2; letter-spacing: -.05em; }
.error-card p { max-width: 560px; margin-top: 20px; color: rgba(255,255,255,.68); font-size: 17px; word-break: keep-all; }
.error-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

:focus-visible { outline: 3px solid #71b8ff; outline-offset: 4px; border-radius: 4px; }

@media (max-width: 980px) {
  .primary-nav { gap: 20px; }
  .hero-layout { grid-template-columns: 1fr; min-height: auto; padding-top: 170px; padding-bottom: 90px; }
  .hero-panel { position: absolute; width: 420px; right: -120px; bottom: 20px; opacity: .45; }
  .hero-copy { max-width: 750px; }
  .intro-layout, .company-layout { grid-template-columns: 170px 1fr; gap: 40px; }
  .expertise-layout { gap: 60px; }
  .contact-card { padding: 48px; gap: 44px; }
}

@media (max-width: 760px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .header-inner { min-height: 74px; }
  .primary-nav { gap: 9px; }
  .primary-nav a:not(.nav-contact):not(.nav-language) { display: none; }
  .primary-nav .nav-language { display: inline-flex; }
  .primary-nav .nav-contact { padding: 8px 14px; }
  .hero-layout { padding-top: 140px; padding-bottom: 70px; }
  .hero h1 { font-size: clamp(42px, 12vw, 60px); }
  .hero-lead { font-size: 16px; }
  .hero-panel { width: 320px; right: -170px; bottom: 50px; opacity: .3; }
  .hero-facts { gap: 20px; }
  .intro, .solutions, .expertise, .company { padding: 80px 0; }
  .intro-layout, .company-layout, .expertise-layout, .contact-card { grid-template-columns: 1fr; gap: 36px; }
  .section-heading { display: grid; align-items: start; }
  .solution-grid { grid-template-columns: 1fr; }
  .solution-card { min-height: 0; padding: 28px; }
  .contact { padding-bottom: 70px; }
  .contact-card { width: calc(100% - 28px); padding: 34px 24px; border-radius: 20px; }
  .contact-fields { grid-template-columns: 1fr; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
  .error-card { padding: 42px 28px; }
}

@media (max-width: 480px) {
  .brand-name { font-size: 18px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .hero-facts { display: grid; grid-template-columns: repeat(2, 1fr); }
  .intro h2, .section-heading h2, .company h2, .contact h2, .expertise h2 { font-size: 34px; }
  .contact-details div { grid-template-columns: 58px 1fr; }
  .contact-submit { align-items: stretch; flex-direction: column; }
}

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