:root {
  --ink: #071320;
  --muted: #5d6975;
  --line: #d9e0e7;
  --panel: #f7fafc;
  --blue: #0052cc;
  --green: #13a857;
  --orange: #f36b24;
  --red: #d93b29;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Arial, "Noto Sans KR", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  font-weight: 800;
  letter-spacing: 0;
}

.links {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

.hero {
  min-height: 78vh;
  display: grid;
  align-items: center;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(0, 82, 204, 0.08), transparent 38%),
    linear-gradient(#edf3f7 1px, transparent 1px),
    linear-gradient(90deg, #edf3f7 1px, transparent 1px);
  background-size: auto, 42px 42px, 42px 42px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
  margin-bottom: 14px;
}

h1 {
  font-size: clamp(46px, 8vw, 92px);
  line-height: 0.94;
  margin: 0 0 20px;
  letter-spacing: 0;
}

.lead {
  font-size: 19px;
  line-height: 1.55;
  color: #33404d;
  max-width: 640px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--ink);
  border-radius: 6px;
  font-weight: 700;
}

.button.primary {
  background: var(--ink);
  color: var(--white);
}

.map-card {
  border: 1px solid #1d2933;
  background: rgba(255, 255, 255, 0.78);
  padding: 20px;
}

.map-card img {
  width: 100%;
  display: block;
}

.product-visual {
  min-height: 520px;
}

.floorplan {
  position: relative;
  min-height: 410px;
  border: 6px solid #1d2933;
  background:
    linear-gradient(#edf3f7 1px, transparent 1px),
    linear-gradient(90deg, #edf3f7 1px, transparent 1px),
    #fbfdff;
  background-size: 26px 26px;
  overflow: hidden;
}

.room {
  position: absolute;
  border: 5px solid #1d2933;
  background: rgba(236, 242, 247, 0.78);
}

.room-a {
  left: 28px;
  top: 30px;
  width: 34%;
  height: 30%;
}

.room-b {
  right: 28px;
  top: 30px;
  width: 34%;
  height: 34%;
}

.room-c {
  left: 28px;
  bottom: 34px;
  width: 38%;
  height: 34%;
}

.route {
  position: absolute;
  left: 50%;
  top: 16%;
  width: 18px;
  height: 68%;
  transform: translateX(-50%);
  background: var(--blue);
  border-radius: 999px;
}

.route::after {
  content: "";
  position: absolute;
  top: 24%;
  left: 8px;
  width: 150px;
  height: 18px;
  background: var(--blue);
  border-radius: 999px;
}

.hazard {
  position: absolute;
  right: 72px;
  top: 168px;
  width: 126px;
  height: 96px;
  border-radius: 8px;
  background: radial-gradient(circle at 50% 50%, rgba(243, 107, 36, 0.95), rgba(217, 59, 41, 0.36) 48%, rgba(217, 59, 41, 0.08) 72%);
  border: 3px solid rgba(217, 59, 41, 0.72);
}

.survivor {
  position: absolute;
  left: 94px;
  bottom: 98px;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: 5px solid var(--blue);
  background: rgba(0, 82, 204, 0.08);
}

.robot {
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  padding: 9px 14px;
  border-radius: 6px;
  background: #d93b29;
  color: #fff;
  border: 4px solid #071320;
  font-size: 12px;
  font-weight: 900;
}

.visual-caption {
  display: grid;
  gap: 6px;
  margin-top: 16px;
}

.visual-caption span {
  color: var(--muted);
  line-height: 1.45;
}

.band {
  padding: 72px 0;
  border-bottom: 1px solid var(--line);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 26px;
}

h2 {
  font-size: 34px;
  margin: 0;
}

.muted {
  color: var(--muted);
}

.status-grid,
.feature-grid,
.item-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.status,
.feature,
.item {
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 18px;
  border-radius: 6px;
}

.status strong,
.feature h3,
.item h3 {
  display: block;
  margin: 0 0 10px;
}

.item-meta {
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 10px;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.tab {
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 999px;
  padding: 9px 14px;
  font-weight: 700;
}

.footer {
  padding: 42px 0;
  background: var(--ink);
  color: var(--white);
}

@media (max-width: 820px) {
  .links {
    display: none;
  }

  .hero-grid,
  .status-grid,
  .feature-grid,
  .item-grid {
    grid-template-columns: 1fr;
  }
}