:root {
  --navy: #0b2038;
  --navy-2: #112e4d;
  --steel: #60758a;
  --orange: #f0782b;
  --orange-dark: #d95f14;
  --paper: #f4f7f9;
  --white: #fff;
  --ink: #14202c;
  --muted: #667482;
  --line: #dce3e8;
  --max: 1180px;
  --shadow: 0 20px 50px rgba(8, 28, 48, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: "Pretendard", "Noto Sans KR", "Apple SD Gothic Neo", Arial, sans-serif; line-height: 1.65; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
.container { width: min(calc(100% - 40px), var(--max)); 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; z-index: 1000; top: 8px; left: 8px; padding: 10px 16px; color: #fff; background: #000; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; z-index: 100; top: 0; height: 76px; color: #fff; background: rgba(7, 27, 47, .96); border-bottom: 1px solid rgba(255,255,255,.1); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { display: grid; width: 38px; height: 38px; place-items: center; color: #fff; background: var(--orange); font-size: 13px; font-weight: 800; letter-spacing: .06em; }
.brand strong, .brand small { display: block; line-height: 1.15; }
.brand strong { font-size: 18px; letter-spacing: -.03em; }
.brand small { margin-top: 4px; color: #9eb0c1; font-size: 9px; letter-spacing: .13em; }
.main-nav { display: flex; align-items: center; gap: 28px; font-size: 14px; font-weight: 650; }
.main-nav a { color: #dce6ee; }
.main-nav a:hover, .main-nav a:focus-visible { color: #fff; }
.main-nav .nav-cta { padding: 11px 18px; color: #fff; background: var(--orange); }
.nav-toggle { display: none; width: 44px; height: 44px; padding: 9px; background: transparent; border: 0; }
.nav-toggle span:not(.sr-only) { display: block; height: 2px; margin: 5px 0; background: #fff; }

.hero { min-height: 670px; display: grid; align-items: center; overflow: hidden; color: #fff; background: radial-gradient(circle at 74% 42%, rgba(49, 103, 145, .33), transparent 32%), linear-gradient(125deg, #071b2f 0%, #0b2945 66%, #10243a 100%); }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 74px; padding-block: 90px; }
.eyebrow, .section-kicker { margin: 0 0 16px; color: var(--orange); font-size: 12px; font-weight: 800; letter-spacing: .18em; }
.hero h1 { margin: 0; font-size: clamp(42px, 5.2vw, 72px); line-height: 1.12; letter-spacing: -.055em; }
.hero h1 span { color: #c9d6df; font-size: .72em; font-weight: 650; }
.hero-lead { max-width: 600px; margin: 28px 0 0; color: #d3dee7; font-size: 19px; }
.hero-actions { display: flex; gap: 12px; margin-top: 36px; }
.button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; padding: 13px 24px; border: 1px solid transparent; cursor: pointer; font-weight: 750; }
.button-primary { color: #fff; background: var(--orange); }
.button-primary:hover, .button-primary:focus-visible { background: var(--orange-dark); }
.button-secondary { color: #fff; background: transparent; border-color: rgba(255,255,255,.45); }
.hero-points { display: flex; flex-wrap: wrap; gap: 16px 24px; margin: 32px 0 0; padding: 0; list-style: none; color: #adc0cf; font-size: 13px; }
.hero-points li::before { content: ""; display: inline-block; width: 5px; height: 5px; margin: 0 9px 2px 0; background: var(--orange); }
.hero-visual { min-height: 480px; display: grid; place-items: center; }
.machine-panel { position: relative; width: min(100%, 470px); aspect-ratio: 1 / 1; overflow: hidden; border: 1px solid rgba(255,255,255,.15); background: linear-gradient(145deg, rgba(255,255,255,.07), rgba(255,255,255,.015)); box-shadow: 0 36px 80px rgba(0,0,0,.28); }
.machine-panel::before { content: ""; position: absolute; inset: 34px; border: 1px solid rgba(255,255,255,.08); }
.machine-kicker { position: absolute; top: 24px; left: 26px; color: #7f9aaf; font-size: 10px; font-weight: 800; letter-spacing: .18em; }
.machine-ring { position: absolute; border: 22px solid rgba(174, 193, 207, .22); border-radius: 50%; box-shadow: inset 0 0 0 2px rgba(255,255,255,.12), 0 0 40px rgba(0,0,0,.2); }
.ring-one { width: 280px; height: 280px; top: 76px; right: -40px; }
.ring-two { width: 170px; height: 170px; top: 130px; right: 15px; border-width: 12px; }
.machine-axis { position: absolute; width: 310px; height: 58px; top: 183px; right: 110px; transform: rotate(-18deg); background: linear-gradient(180deg, #7890a3, #243d52 48%, #9fb1bf); box-shadow: 0 18px 28px rgba(0,0,0,.38); }
.machine-panel strong { position: absolute; left: 28px; bottom: 28px; color: #e7eef3; font-size: 24px; line-height: 1.35; }

.section { padding: 104px 0; scroll-margin-top: 76px; }
.split { display: grid; grid-template-columns: .95fr 1.05fr; gap: 90px; align-items: start; }
.section h2 { margin: 0; font-size: clamp(32px, 4vw, 48px); line-height: 1.25; letter-spacing: -.045em; }
.company-copy > p { margin: 4px 0 26px; color: #4d5c69; font-size: 18px; }
.target-list { display: flex; flex-wrap: wrap; gap: 9px; }
.target-list span { padding: 8px 12px; background: var(--paper); border: 1px solid var(--line); color: #354655; font-size: 13px; }
.section-dark { color: #fff; background: var(--navy); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 48px; }
.section-heading > p { max-width: 470px; margin: 0; color: var(--muted); }
.section-dark .section-heading > p { color: #a9bac9; }
.card-grid { display: grid; }
.service-grid { grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255,255,255,.13); border-left: 1px solid rgba(255,255,255,.13); }
.service-card { min-height: 220px; padding: 30px; border-right: 1px solid rgba(255,255,255,.13); border-bottom: 1px solid rgba(255,255,255,.13); }
.service-card span { color: var(--orange); font-size: 12px; font-weight: 800; }
.service-card h3 { margin: 42px 0 10px; font-size: 21px; }
.service-card p { margin: 0; color: #9fb1c1; font-size: 14px; }

.materials { background: var(--paper); }
.material-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; padding: 0; list-style: none; }
.material-grid li { padding: 26px; background: #fff; border-left: 3px solid var(--orange); box-shadow: 0 8px 24px rgba(18, 42, 63, .06); }
.material-grid strong, .material-grid span { display: block; }
.material-grid strong { font-size: 18px; }
.material-grid span { margin-top: 4px; color: var(--muted); font-size: 13px; }

.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cases { background: #eef2f5; }
.portfolio-card { overflow: hidden; background: #fff; box-shadow: var(--shadow); }
.portfolio-image { height: 280px; overflow: hidden; background: #cdd6dc; }
.portfolio-image img { display: block; width: 100%; height: 100%; object-fit: cover; }
.portfolio-image-wide img { object-position: center; }
.portfolio-card > div:last-child { padding: 24px; }
.portfolio-card h3 { margin: 10px 0 8px; }
.portfolio-card p { margin: 0; color: var(--muted); font-size: 13px; }
.tag { color: var(--orange-dark); font-size: 10px; font-weight: 800; letter-spacing: .12em; }
.video-heading { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin: 72px 0 28px; padding-top: 42px; border-top: 1px solid #ced7de; }
.video-heading h3 { margin: 0; font-size: 30px; letter-spacing: -.035em; }
.video-heading > p { max-width: 470px; margin: 0; color: var(--muted); }
.video-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.video-card { overflow: hidden; background: #fff; box-shadow: var(--shadow); }
.video-frame { position: relative; aspect-ratio: 16 / 9; background: #061524; }
.video-frame > a { position: absolute; inset: 0; display: block; overflow: hidden; }
.video-frame img { display: block; width: 100%; height: 100%; object-fit: cover; }
.video-frame::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(180deg, transparent 50%, rgba(2, 15, 28, .34)); }
.play-mark { position: absolute; z-index: 1; top: 50%; left: 50%; display: grid; width: 64px; height: 46px; place-items: center; color: #fff; background: rgba(214, 42, 33, .94); border-radius: 12px; transform: translate(-50%, -50%); font-size: 19px; padding-left: 3px; }
.video-copy { padding: 24px; }
.video-copy h3 { margin: 10px 0 7px; font-size: 21px; }
.video-copy p { margin: 0; color: var(--muted); font-size: 13px; }
.video-copy a { display: inline-block; margin-top: 16px; color: var(--navy-2); font-size: 13px; font-weight: 750; }

.capacity-strip { padding: 54px 0; color: #fff; background: #132b42; }
.capacity-strip .container { display: grid; grid-template-columns: minmax(220px, .75fr) minmax(0, 2fr); gap: 56px; align-items: start; }
.capacity-heading h2 { margin: 0; font-size: clamp(27px, 3vw, 38px); letter-spacing: -.04em; }
.capacity-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; margin: 0; background: rgba(255, 255, 255, .16); }
.capacity-list > div { min-height: 112px; padding: 24px; background: #173550; }
.capacity-list dt { margin-bottom: 9px; color: #aebdca; font-size: 13px; font-weight: 700; }
.capacity-list dd { margin: 0; font-size: 18px; font-weight: 800; line-height: 1.45; }


.quote { color: #fff; background: #071b2f; }
.quote-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 70px; }
.quote-intro > p:not(.section-kicker) { color: #afbfcc; }
.quote-steps { margin: 42px 0; padding: 0; list-style: none; }
.quote-steps li { display: flex; gap: 16px; padding: 18px 0; border-top: 1px solid rgba(255,255,255,.12); }
.quote-steps li:last-child { border-bottom: 1px solid rgba(255,255,255,.12); }
.quote-steps li > span { display: grid; width: 34px; height: 34px; flex: 0 0 auto; place-items: center; color: #fff; background: var(--orange); font-size: 12px; font-weight: 800; }
.quote-steps strong, .quote-steps p { display: block; }
.quote-steps p { margin: 3px 0 0; color: #93a7b8; font-size: 13px; }
.phone-link small, .phone-link strong { display: block; }
.phone-link small { color: #8299aa; }
.phone-link strong { font-size: 26px; }
.quote-contact { display: grid; gap: 9px; }
.quote-contact p { margin: 0; color: #d8e2e9; font-size: 14px; }
.quote-contact p span { display: inline-block; min-width: 52px; color: #8299aa; }
.quote-contact a { color: #fff; }
.quote-form { padding: 36px; color: var(--ink); background: #fff; box-shadow: 0 24px 70px rgba(0,0,0,.24); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-grid label { display: grid; gap: 8px; }
.form-grid label > span { font-size: 13px; font-weight: 750; }
.form-grid b { color: var(--orange-dark); }
.form-grid input, .form-grid textarea { width: 100%; padding: 13px 14px; color: var(--ink); background: #fff; border: 1px solid #cad4dc; border-radius: 0; outline: 0; }
.form-grid input:focus, .form-grid textarea:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(240,120,43,.13); }
.form-grid .full { grid-column: 1 / -1; }
.file-field { padding: 16px; background: var(--paper); border: 1px dashed #a8b6c1; }
.file-field input { padding: 0; border: 0; }
.file-field small { color: var(--muted); font-size: 12px; }
.form-notice { margin: 20px 0 16px; padding: 12px 14px; color: #596a77; background: #f5f7f8; font-size: 12px; }
.submit-button { width: 100%; border: 0; }
.form-result { display: none; margin-top: 16px; padding: 14px; color: #6c390d; background: #fff1e7; border: 1px solid #f4bd93; font-size: 14px; }
.form-result.is-visible { display: block; }

.site-footer { padding: 34px 0; color: #98a9b6; background: #051423; font-size: 13px; }
.footer-inner { display: flex; justify-content: space-between; gap: 30px; }
.site-footer strong { color: #fff; font-size: 17px; }
.site-footer p { margin: 4px 0; }
.site-footer a { color: #d5e0e8; }

@media (max-width: 980px) {
  .main-nav { gap: 16px; }
  .hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .hero-visual { display: none; }
  .hero { min-height: 610px; }
  .service-grid, .material-grid { grid-template-columns: repeat(2, 1fr); }
  .quote-grid { grid-template-columns: 1fr; }
  .capacity-strip .container { grid-template-columns: 1fr; gap: 28px; }
  .capacity-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .container { width: min(calc(100% - 28px), var(--max)); }
  .site-header { height: 66px; }
  .nav-toggle { display: block; }
  .main-nav { position: absolute; top: 66px; left: 0; right: 0; display: none; padding: 18px 20px 24px; align-items: stretch; flex-direction: column; gap: 0; background: #081b2d; box-shadow: 0 18px 35px rgba(0,0,0,.28); }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 12px 6px; border-bottom: 1px solid rgba(255,255,255,.09); }
  .main-nav .nav-cta { margin-top: 10px; padding: 12px 14px; text-align: center; border: 0; }
  .hero { min-height: 620px; }
  .hero-grid { padding-block: 70px; }
  .hero h1 { font-size: clamp(39px, 11vw, 54px); }
  .hero h1 span { font-size: .61em; }
  .hero-lead { font-size: 17px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .section { padding: 76px 0; scroll-margin-top: 66px; }
  .split { grid-template-columns: 1fr; gap: 28px; }
  .section-heading { align-items: start; flex-direction: column; gap: 16px; margin-bottom: 34px; }
  .service-grid, .material-grid, .portfolio-grid { grid-template-columns: 1fr; }
  .portfolio-image { height: 260px; }
  .video-heading { align-items: start; flex-direction: column; gap: 10px; margin-top: 54px; }
  .video-grid { grid-template-columns: 1fr; }
  .capacity-strip { padding: 44px 0; }
  .capacity-list { grid-template-columns: 1fr; }
  .capacity-list > div { min-height: auto; padding: 19px 20px; }
  .service-card { min-height: 170px; }
  .service-card h3 { margin-top: 26px; }
  .quote-form { padding: 24px 18px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .full { grid-column: auto; }
  .footer-inner { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}