:root {
  --navy: #102a43;
  --navy-2: #183b5b;
  --blue: #2f80ed;
  --mint: #bdebdc;
  --cream: #f7f5ee;
  --ink: #142535;
  --muted: #64788b;
  --line: rgba(16, 42, 67, .14);
  --white: #fff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--cream); font-family: Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif; word-break: keep-all; }
.shell { width: min(1180px, calc(100% - 64px)); margin: 0 auto; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 20; padding: 12px 18px; background: var(--navy); color: white; border-radius: 4px; }
.skip-link:focus { top: 16px; }
.status-header { height: 82px; border-bottom: 1px solid var(--line); background: rgba(247, 245, 238, .94); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 11px; color: var(--navy); font-size: 21px; font-weight: 500; letter-spacing: -.06em; }
.brand strong { font-weight: 800; }
.brand-mark { position: relative; display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: var(--navy); }
.brand-mark::before { content: ""; width: 13px; height: 11px; border: 2px solid white; border-top: 0; transform: translateY(3px); }
.brand-mark::after { content: ""; position: absolute; width: 12px; height: 12px; border-left: 2px solid white; border-top: 2px solid white; transform: rotate(45deg) translate(-1px, 1px); }
.brand-mark span { position: absolute; bottom: 8px; width: 2px; height: 7px; background: white; }
.header-state { font-size: 11px; font-weight: 800; letter-spacing: .19em; color: var(--muted); }
.hero { min-height: 650px; display: grid; grid-template-columns: 1.05fr .95fr; gap: 86px; align-items: center; padding-top: 76px; padding-bottom: 92px; }
.eyebrow { display: flex; align-items: center; gap: 12px; margin: 0 0 24px; color: var(--blue); font-size: 11px; font-weight: 800; letter-spacing: .18em; }
.eyebrow > span { display: block; width: 34px; height: 1px; background: currentColor; }
h1 { margin: 0; color: var(--navy); font-family: Georgia, "Noto Serif KR", serif; font-size: clamp(43px, 4.4vw, 66px); line-height: 1.16; letter-spacing: -.055em; font-weight: 700; }
h1 em { color: var(--blue); font-style: normal; }
.description { max-width: 620px; margin: 30px 0 0; font-size: 17px; line-height: 1.9; color: #4f6577; letter-spacing: -.018em; }
.opening-note { display: inline-flex; align-items: center; gap: 15px; margin-top: 38px; padding: 17px 22px; border: 1px solid var(--line); border-radius: 8px; background: rgba(255, 255, 255, .56); }
.opening-note .pulse { width: 9px; height: 9px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 5px rgba(47, 128, 237, .1); }
.opening-note strong { display: block; margin-bottom: 3px; font-size: 11px; letter-spacing: .16em; color: var(--blue); }
.opening-note p { margin: 0; font-size: 14px; color: var(--navy-2); }
.comparison-visual { position: relative; min-height: 472px; overflow: hidden; border-radius: 2px 44px 2px 44px; padding: 46px; color: white; background: linear-gradient(145deg, #0d2944 0%, #16476a 66%, #286c86 100%); box-shadow: 0 28px 70px rgba(16, 42, 67, .2); }
.visual-grid { position: absolute; inset: 0; opacity: .12; background-image: linear-gradient(rgba(255,255,255,.3) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.3) 1px, transparent 1px); background-size: 48px 48px; mask-image: linear-gradient(to bottom, black, transparent 85%); }
.visual-label { position: relative; margin: 0; font-size: 10px; font-weight: 700; letter-spacing: .22em; color: var(--mint); }
.home-cards { position: relative; display: grid; grid-template-columns: 1fr 30px 1fr; align-items: center; gap: 12px; margin-top: 38px; }
.home-card { height: 154px; padding: 16px; border: 1px solid rgba(255,255,255,.22); background: rgba(255,255,255,.08); backdrop-filter: blur(5px); }
.home-card > span { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--mint); color: var(--navy); font-size: 12px; font-weight: 800; }
.versus { text-align: center; font: 700 10px Georgia, serif; color: rgba(255,255,255,.65); }
.building { height: 84px; margin-top: 14px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; align-content: center; }
.building i { height: 16px; background: rgba(255,255,255,.18); border: 1px solid rgba(255,255,255,.12); }
.card-b .building i:nth-child(2n), .card-a .building i:nth-child(3n) { background: rgba(189,235,220,.42); }
.metric-lines { position: relative; display: grid; gap: 9px; width: 76%; margin-top: 30px; }
.metric-lines span { display: block; height: 3px; border-radius: 3px; background: rgba(255,255,255,.13); }
.metric-lines span::after { content: ""; display: block; width: 68%; height: 100%; background: var(--mint); }
.metric-lines span:nth-child(2)::after { width: 84%; }
.metric-lines span:nth-child(3)::after { width: 52%; }
.metric-lines span:nth-child(4)::after { width: 74%; }
.visual-caption { position: relative; margin: 29px 0 0; color: rgba(255,255,255,.72); line-height: 1.55; font-size: 15px; }
.visual-caption strong { color: white; font-size: 18px; }
.process-section { padding: 88px 0 98px; background: white; border-top: 1px solid rgba(16, 42, 67, .08); }
.section-heading { display: grid; grid-template-columns: .55fr 1.45fr; margin-bottom: 55px; }
.section-heading > p { margin: 8px 0; color: var(--blue); font-size: 10px; font-weight: 800; letter-spacing: .2em; }
.section-heading h2 { margin: 0; color: var(--navy); font-family: Georgia, "Noto Serif KR", serif; font-size: 34px; line-height: 1.35; letter-spacing: -.04em; }
.process-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; padding: 0; margin: 0; list-style: none; border-top: 1px solid var(--navy); }
.process-list li { position: relative; min-height: 170px; padding: 25px 20px 20px 0; border-right: 1px solid var(--line); }
.process-list li + li { padding-left: 24px; }
.process-list li:last-child { border-right: 0; }
.process-list span { display: block; margin-bottom: 34px; font: italic 14px Georgia, serif; color: var(--blue); }
.process-list strong { display: block; color: var(--navy); font-size: 17px; }
.process-list p { margin: 9px 0 0; color: var(--muted); font-size: 13px; line-height: 1.6; }
.status-footer { padding: 27px 0; color: rgba(255,255,255,.65); background: var(--navy); }
.status-footer .shell { display: flex; align-items: center; justify-content: space-between; }
.status-footer p { margin: 0; color: white; font-weight: 800; }
.status-footer span { font-size: 12px; }
.maintenance-main { min-height: calc(100vh - 82px); display: grid; place-items: center; padding-top: 60px; padding-bottom: 60px; }
.maintenance-card { width: min(680px, 100%); padding: 74px 64px; text-align: center; border: 1px solid var(--line); border-radius: 3px 42px 3px 42px; background: white; box-shadow: 0 24px 65px rgba(16,42,67,.1); }
.maintenance-card .eyebrow { justify-content: center; margin-top: 29px; }
.maintenance-card h1 { font-size: clamp(39px, 5vw, 58px); }
.maintenance-card > p:not(.eyebrow) { margin: 28px 0 0; line-height: 1.8; color: var(--muted); }
.tool-mark { position: relative; width: 66px; height: 66px; margin: 0 auto; border-radius: 21px; background: var(--navy); }
.tool-mark::before, .tool-mark::after { content: ""; position: absolute; left: 22px; width: 22px; height: 2px; background: var(--mint); }
.tool-mark::before { top: 28px; transform: rotate(45deg); }
.tool-mark::after { top: 36px; transform: rotate(-45deg); }
.maintenance-note { display: flex; justify-content: center; gap: 15px; margin-top: 42px; padding-top: 25px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.maintenance-note strong { color: var(--navy); }

@media (max-width: 860px) {
  .shell { width: min(100% - 40px, 640px); }
  .hero { grid-template-columns: 1fr; gap: 58px; padding-top: 64px; }
  .comparison-visual { min-height: 430px; }
  .section-heading { grid-template-columns: 1fr; gap: 12px; }
  .process-list { grid-template-columns: 1fr 1fr; }
  .process-list li:nth-child(2) { border-right: 0; }
}

@media (max-width: 520px) {
  .shell { width: calc(100% - 34px); }
  .status-header { height: 70px; }
  .brand { font-size: 18px; }
  .brand-mark { width: 31px; height: 31px; }
  .header-state { font-size: 9px; letter-spacing: .13em; }
  .hero { min-height: 0; padding-top: 52px; padding-bottom: 64px; gap: 45px; }
  h1 { font-size: clamp(38px, 11vw, 48px); line-height: 1.2; }
  .description { margin-top: 24px; font-size: 15px; line-height: 1.82; }
  .opening-note { width: 100%; margin-top: 30px; padding: 15px 17px; }
  .comparison-visual { min-height: 382px; padding: 31px 25px; border-radius: 2px 30px 2px 30px; }
  .home-cards { grid-template-columns: 1fr 23px 1fr; gap: 6px; margin-top: 28px; }
  .home-card { height: 132px; padding: 13px; }
  .building { gap: 6px; height: 64px; }
  .metric-lines { margin-top: 24px; }
  .visual-caption { margin-top: 23px; }
  .process-section { padding: 65px 0 70px; }
  .section-heading { margin-bottom: 35px; }
  .section-heading h2 { font-size: 29px; }
  .process-list { grid-template-columns: 1fr; }
  .process-list li, .process-list li + li { min-height: 0; padding: 20px 5px 22px; border-right: 0; border-bottom: 1px solid var(--line); }
  .process-list li:last-child { border-bottom: 0; }
  .process-list span { margin-bottom: 12px; }
  .status-footer .shell { align-items: flex-start; flex-direction: column; gap: 7px; }
  .maintenance-main { min-height: calc(100vh - 70px); }
  .maintenance-card { padding: 56px 25px; border-radius: 2px 30px 2px 30px; }
  .maintenance-note { flex-direction: column; gap: 5px; }
}

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