@charset "utf-8";

:root {
  --ink: #102a2a;
  --ink-soft: #4c6462;
  --paper: #f5f7f1;
  --paper-deep: #e9eee4;
  --white: #fffef9;
  --mint: #83f0c5;
  --mint-deep: #1f8f72;
  --lime: #d8f66f;
  --coral: #ff815f;
  --line: rgba(16, 42, 42, .14);
  --shadow: 0 24px 80px rgba(18, 58, 49, .12);
  --radius-sm: 12px;
  --radius: 22px;
  --radius-lg: 36px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", Inter, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image: radial-gradient(rgba(16,42,42,.07) .7px, transparent .7px);
  background-size: 18px 18px;
  mask-image: linear-gradient(to bottom, #000, transparent 75%);
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--coral); outline-offset: 3px; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 999; padding: 10px 16px; color: white; background: var(--ink); border-radius: 8px; }
.skip-link:focus { top: 16px; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.section { padding: 112px 0; }
.section--tight { padding: 72px 0; }
.section--ink { color: var(--white); background: var(--ink); }
.section--white { background: var(--white); }
.section-head { display: grid; grid-template-columns: minmax(220px,.65fr) 1.35fr; gap: 48px; align-items: end; margin-bottom: 56px; }
.section-head h2, .page-hero h1, .hero h1 { margin: 0; font-weight: 750; line-height: 1.08; letter-spacing: -.055em; }
.section-head h2 { max-width: 760px; font-size: clamp(2.25rem,5vw,4.5rem); }
.section-head p { max-width: 620px; margin: 0; color: var(--ink-soft); font-size: 1.08rem; }
.section--ink .section-head p { color: #afc4c0; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; margin-bottom: 18px; font-size: .76rem; font-weight: 750; letter-spacing: .13em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 8px; height: 8px; background: var(--coral); border-radius: 50%; box-shadow: 0 0 0 5px rgba(255,129,95,.15); }
.muted { color: var(--ink-soft); }

.site-header { position: sticky; top: 0; z-index: 100; border-bottom: 1px solid transparent; transition: .25s ease; }
.site-header.is-scrolled { background: rgba(245,247,241,.88); border-color: var(--line); backdrop-filter: blur(18px); }
.nav { display: flex; min-height: 82px; align-items: center; justify-content: space-between; gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 1.05rem; font-weight: 800; letter-spacing: -.03em; }
.brand-mark { display: grid; width: 34px; height: 34px; place-items: center; overflow: hidden; background: var(--ink); border-radius: 11px; }
.brand-mark svg { width: 23px; }
.nav-links { display: flex; align-items: center; gap: 32px; font-size: .93rem; font-weight: 650; }
.nav-links a:not(.btn) { position: relative; padding: 10px 0; }
.nav-links a:not(.btn)::after { content: ""; position: absolute; right: 0; bottom: 4px; left: 0; height: 2px; background: var(--ink); transform: scaleX(0); transform-origin: right; transition: transform .25s ease; }
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }
.nav-toggle { display: none; width: 44px; height: 44px; padding: 10px; border: 1px solid var(--line); background: transparent; border-radius: 50%; cursor: pointer; }
.nav-toggle span { display: block; height: 2px; margin: 5px 0; background: var(--ink); border-radius: 2px; }

.btn { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 10px; padding: 0 22px; border: 1px solid transparent; border-radius: 999px; font-size: .92rem; font-weight: 750; cursor: pointer; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn--primary { color: var(--white); background: var(--ink); box-shadow: 0 10px 30px rgba(16,42,42,.18); }
.btn--accent { color: var(--ink); background: var(--lime); }
.btn--line { border-color: var(--line); background: rgba(255,255,255,.28); }
.btn--light { color: var(--ink); background: var(--white); }
.btn svg { width: 18px; transition: transform .2s ease; }
.btn:hover svg { transform: translateX(3px); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

.hero { position: relative; min-height: calc(100svh - 82px); overflow: hidden; padding: 68px 0 84px; }
.hero-grid { display: grid; grid-template-columns: minmax(0,1.15fr) minmax(360px,.85fr); gap: 40px; align-items: center; }
.hero h1 { max-width: 820px; font-size: clamp(3.4rem,8.4vw,7.8rem); }
.hero h1 .accent { position: relative; display: inline-block; }
.hero h1 .accent::after { content: ""; position: absolute; right: -.04em; bottom: .02em; left: -.04em; z-index: -1; height: .25em; background: var(--mint); transform: rotate(-1.5deg); }
.hero-copy { max-width: 610px; margin: 30px 0 34px; color: var(--ink-soft); font-size: clamp(1.08rem,2vw,1.28rem); }
.hero-art { position: relative; min-height: 540px; }
.orbit { position: absolute; inset: 20px; border: 1px solid var(--line); border-radius: 50%; animation: spin 26s linear infinite; }
.orbit::before, .orbit::after { content: ""; position: absolute; width: 18px; height: 18px; border: 7px solid var(--paper); border-radius: 50%; }
.orbit::before { top: 12%; left: 10%; background: var(--coral); }
.orbit::after { right: 4%; bottom: 22%; background: var(--mint-deep); }
.art-card { position: absolute; display: flex; flex-direction: column; justify-content: space-between; padding: 26px; border: 1px solid rgba(16,42,42,.12); border-radius: var(--radius); box-shadow: var(--shadow); }
.art-card strong { font-size: 1.12rem; line-height: 1.35; }
.art-card small { color: var(--ink-soft); font-weight: 650; }
.art-card--main { top: 12%; right: 5%; width: 72%; height: 58%; background: var(--white); transform: rotate(4deg); }
.art-card--main .visual-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.visual-grid i { height: 78px; background: var(--paper-deep); border-radius: 12px; }
.visual-grid i:nth-child(2) { background: var(--mint); }
.visual-grid i:nth-child(3) { background: var(--lime); }
.art-card--small { bottom: 5%; left: 3%; width: 50%; height: 32%; color: white; background: var(--ink); transform: rotate(-5deg); }
.art-card--tag { top: 6%; left: 2%; width: 132px; height: 132px; padding: 20px; background: var(--coral); border-radius: 50%; transform: rotate(-8deg); }
.art-card--tag strong { font-size: 1.45rem; }
.hero-note { display: flex; align-items: center; gap: 12px; margin-top: 52px; font-size: .86rem; font-weight: 700; }
.hero-note span { width: 46px; height: 1px; background: var(--ink); }

.ticker { overflow: hidden; border-block: 1px solid var(--line); background: var(--lime); transform: rotate(-1deg) scale(1.02); }
.ticker-track { display: flex; width: max-content; animation: marquee 24s linear infinite; }
.ticker span { display: inline-flex; align-items: center; gap: 24px; padding: 17px 24px; font-size: .84rem; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.ticker span::after { content: "✦"; font-size: 1.1rem; }

.cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.card { position: relative; min-height: 320px; overflow: hidden; padding: 30px; border: 1px solid var(--line); background: rgba(255,254,249,.72); border-radius: var(--radius); transition: transform .25s ease, box-shadow .25s ease; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.card-number { display: inline-grid; width: 42px; height: 42px; place-items: center; margin-bottom: 62px; border: 1px solid var(--line); border-radius: 50%; font-size: .75rem; font-weight: 800; }
.card h3 { margin: 0 0 12px; font-size: 1.45rem; letter-spacing: -.035em; }
.card p { margin: 0; color: var(--ink-soft); }
.card-icon { position: absolute; top: 22px; right: 22px; width: 84px; height: 84px; color: var(--mint-deep); opacity: .18; }
.cards--4 { grid-template-columns: repeat(4,1fr); }
.cards--4 .card { min-height: 290px; }

.product-list { border-top: 1px solid rgba(255,255,255,.18); }
.product-row { display: grid; grid-template-columns: 90px 1fr 1fr 54px; gap: 28px; align-items: center; min-height: 170px; border-bottom: 1px solid rgba(255,255,255,.18); transition: padding .25s ease, background .25s ease; }
.product-row:hover { padding-inline: 18px; background: rgba(255,255,255,.04); }
.product-index { color: var(--mint); font-size: .8rem; font-weight: 800; }
.product-row h3 { margin: 0; font-size: clamp(1.8rem,4vw,3.3rem); letter-spacing: -.05em; }
.product-row p { margin: 0; color: #afc4c0; }
.product-arrow { display: grid; width: 48px; height: 48px; place-items: center; border: 1px solid rgba(255,255,255,.24); border-radius: 50%; }

.process { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; counter-reset: step; }
.process-step { position: relative; min-height: 260px; padding: 30px 24px; border-top: 1px solid var(--line); counter-increment: step; }
.process-step:not(:last-child) { border-right: 1px solid var(--line); }
.process-step::before { content: "0" counter(step); display: block; margin-bottom: 72px; color: var(--mint-deep); font-size: .76rem; font-weight: 800; }
.process-step h3 { margin: 0 0 10px; font-size: 1.25rem; }
.process-step p { margin: 0; color: var(--ink-soft); font-size: .92rem; }

.quote { display: grid; grid-template-columns: .75fr 1.25fr; gap: 70px; align-items: center; padding: 72px; color: var(--white); background: var(--ink); border-radius: var(--radius-lg); }
.quote-badge { display: grid; width: 220px; height: 220px; place-items: center; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; }
.quote-badge svg { width: 120px; }
.quote blockquote { margin: 0; font-size: clamp(1.75rem,3.5vw,3.2rem); font-weight: 650; line-height: 1.3; letter-spacing: -.04em; }
.quote p { margin: 28px 0 0; color: #afc4c0; }

.cta-band { position: relative; overflow: hidden; padding: 100px 0; color: var(--ink); background: var(--mint); }
.cta-band::after { content: "GAI"; position: absolute; right: -20px; bottom: -100px; color: rgba(16,42,42,.06); font-size: 23rem; font-weight: 900; line-height: 1; }
.cta-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.4fr .6fr; gap: 40px; align-items: end; }
.cta-inner h2 { max-width: 850px; margin: 0 0 24px; font-size: clamp(2.7rem,6vw,5.8rem); line-height: 1.02; letter-spacing: -.06em; }
.cta-inner p { max-width: 600px; margin: 0; }
.cta-inner .btn { justify-self: end; }

.page-hero { position: relative; overflow: hidden; padding: 112px 0 92px; border-bottom: 1px solid var(--line); }
.page-hero::after { content: ""; position: absolute; top: 25%; right: 7%; width: 240px; height: 240px; border: 50px solid var(--mint); border-radius: 50%; opacity: .55; transform: rotate(20deg); }
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { max-width: 920px; font-size: clamp(3.4rem,8vw,7rem); }
.page-hero p { max-width: 650px; margin: 30px 0 0; color: var(--ink-soft); font-size: 1.18rem; }
.intro-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; align-items: start; }
.intro-grid h2 { margin: 0; font-size: clamp(2rem,4vw,3.8rem); line-height: 1.15; letter-spacing: -.05em; }
.intro-copy p { margin: 0 0 24px; color: var(--ink-soft); font-size: 1.08rem; }
.value-list { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.value-item { display: grid; grid-template-columns: 64px 1fr; gap: 24px; padding: 32px; background: var(--paper); }
.value-item b { color: var(--mint-deep); }
.value-item h3 { margin: 0 0 6px; font-size: 1.2rem; }
.value-item p { margin: 0; color: var(--ink-soft); }
.detail-block { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; padding: 70px 0; border-top: 1px solid var(--line); }
.detail-block:last-child { border-bottom: 1px solid var(--line); }
.detail-block h2 { margin: 0; font-size: clamp(1.9rem,4vw,3.2rem); line-height: 1.2; letter-spacing: -.045em; }
.detail-block h3 { margin: 0 0 12px; font-size: 1.28rem; }
.detail-block p { margin: 0 0 20px; color: var(--ink-soft); }
.bullet-list { margin: 24px 0 0; padding: 0; list-style: none; }
.bullet-list li { position: relative; padding: 11px 0 11px 26px; border-bottom: 1px solid var(--line); }
.bullet-list li::before { content: "↗"; position: absolute; left: 0; color: var(--mint-deep); }
.tech-stack { display: flex; flex-wrap: wrap; gap: 10px; }
.pill { padding: 8px 14px; border: 1px solid var(--line); background: var(--white); border-radius: 999px; font-size: .83rem; font-weight: 700; }

.contact-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 80px; }
.contact-aside { position: sticky; top: 120px; align-self: start; }
.contact-aside h2 { margin: 0 0 20px; font-size: 2.4rem; line-height: 1.2; letter-spacing: -.045em; }
.contact-direct { margin-top: 42px; padding-top: 26px; border-top: 1px solid var(--line); }
.contact-direct small { display: block; margin-bottom: 6px; color: var(--ink-soft); }
.contact-direct a { font-weight: 800; text-decoration: underline; text-decoration-color: var(--mint-deep); text-underline-offset: 5px; }
.contact-form { padding: 42px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 22px; }
.field { display: grid; gap: 8px; }
.field--full { grid-column: 1 / -1; }
.field label, .field legend { font-size: .87rem; font-weight: 750; }
.field input, .field select, .field textarea { width: 100%; min-height: 52px; padding: 13px 15px; color: var(--ink); border: 1px solid var(--line); outline: none; background: var(--paper); border-radius: 10px; transition: border .2s, box-shadow .2s; }
.field textarea { min-height: 180px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--mint-deep); box-shadow: 0 0 0 3px rgba(31,143,114,.12); }
.check { display: flex; align-items: flex-start; gap: 10px; margin: 25px 0; font-size: .85rem; color: var(--ink-soft); }
.check input { width: 18px; height: 18px; margin-top: 4px; accent-color: var(--mint-deep); }
.form-message { min-height: 28px; margin-top: 16px; font-size: .9rem; font-weight: 700; }
.form-message--success { color: var(--mint-deep); }
.form-message--error { color: #b73828; }

.legal { max-width: 850px; }
.legal h2 { margin: 56px 0 14px; font-size: 1.5rem; letter-spacing: -.025em; }
.legal h2:first-child { margin-top: 0; }
.legal p, .legal li { color: var(--ink-soft); }
.legal table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: .92rem; }
.legal th, .legal td { padding: 15px; text-align: left; border: 1px solid var(--line); }
.legal th { background: var(--paper-deep); }
.notice { padding: 22px; border-left: 4px solid var(--coral); background: var(--white); }

.site-footer { padding: 68px 0 32px; color: var(--white); background: #0b2221; }
.footer-top { display: grid; grid-template-columns: 1.4fr .6fr .6fr; gap: 50px; padding-bottom: 60px; }
.footer-title { max-width: 490px; margin: 24px 0 0; color: #afc4c0; }
.footer-nav { display: grid; align-content: start; gap: 12px; }
.footer-nav strong { margin-bottom: 8px; color: var(--mint); font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; }
.footer-nav a { width: max-content; color: #dce8e4; font-size: .92rem; }
.footer-bottom { display: flex; justify-content: space-between; gap: 30px; padding-top: 26px; border-top: 1px solid rgba(255,255,255,.14); color: #819b97; font-size: .8rem; }
.footer-bottom div { display: flex; gap: 24px; }

[data-reveal] { opacity: 1; transform: none; }
@media (prefers-reduced-motion: no-preference) {
  [data-reveal].is-visible { animation: reveal-in .65s cubic-bezier(.2,.8,.2,1) both; }
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes marquee { to { transform: translateX(-50%); } }
@keyframes reveal-in { from { opacity: 0; transform: translateY(26px); } }

@media (max-width: 960px) {
  .section { padding: 86px 0; }
  .nav-toggle { display: block; }
  .nav-links { position: fixed; top: 72px; right: 20px; left: 20px; display: none; align-items: stretch; padding: 24px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
  .nav-links.is-open { display: grid; gap: 8px; }
  .nav-links a:not(.btn) { padding: 12px 6px; }
  .hero-grid, .section-head, .intro-grid, .detail-block, .contact-grid { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .hero-art { min-height: 470px; }
  .cards, .cards--4 { grid-template-columns: repeat(2,1fr); }
  .process { grid-template-columns: repeat(2,1fr); }
  .process-step:nth-child(2) { border-right: 0; }
  .product-row { grid-template-columns: 60px 1fr 52px; }
  .product-row p { grid-column: 2 / 3; }
  .quote { grid-template-columns: 1fr; padding: 48px; }
  .quote-badge { width: 140px; height: 140px; }
  .cta-inner { grid-template-columns: 1fr; }
  .cta-inner .btn { justify-self: start; }
  .contact-aside { position: static; }
}

@media (max-width: 640px) {
  body { word-break: normal; }
  .container { width: min(calc(100% - 28px), var(--container)); }
  .section { padding: 70px 0; }
  .nav { min-height: 72px; }
  .hero { padding-top: 42px; }
  .hero h1 { font-size: clamp(3.1rem,17vw,5.1rem); }
  .hero-grid { gap: 10px; }
  .hero-art { min-height: 390px; }
  .art-card--main { width: 80%; height: 56%; }
  .art-card--small { width: 65%; }
  .art-card--tag { width: 104px; height: 104px; }
  .cards, .cards--4 { grid-template-columns: 1fr; }
  .card { min-height: 270px; }
  .section-head { gap: 24px; }
  .product-row { grid-template-columns: 42px 1fr 42px; gap: 12px; padding: 24px 0; }
  .product-row:hover { padding-inline: 6px; }
  .product-row p { font-size: .9rem; }
  .process { grid-template-columns: 1fr; }
  .process-step { min-height: 220px; border-right: 0 !important; }
  .quote { padding: 34px 26px; }
  .page-hero { padding: 72px 0; }
  .page-hero::after { right: -90px; width: 190px; height: 190px; }
  .detail-block { gap: 28px; padding: 50px 0; }
  .form-grid { grid-template-columns: 1fr; }
  .contact-form { padding: 25px 19px; }
  .field--full { grid-column: auto; }
  .legal { overflow-x: auto; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-top > :first-child { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
  .footer-bottom div { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}