:root {
  --bg: #0b0d12;
  --panel: rgba(255,255,255,.06);
  --panel2: rgba(255,255,255,.09);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.68);
  --line: rgba(255,255,255,.12);
  --max: 1100px;
  --radius: 16px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  background: radial-gradient(1200px 600px at 20% 0%, rgba(255,255,255,.08), transparent 60%),
              radial-gradient(900px 500px at 90% 10%, rgba(255,255,255,.06), transparent 55%),
              var(--bg);
  color: var(--text);
  line-height: 1.65; /* improved global readability */
}

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

/* Typography spacing */
p { margin: 0 0 12px; }
.lead, .subhead { line-height: 1.75; }

.container {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
}

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(11,13,18,.65);
  border-bottom: 1px solid var(--line);
}

.header__inner {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo { display: inline-flex; align-items: center; }
.logo-img {
  height: 80px;
  width: auto;
  display: block;
}

.nav {
  display: flex;
  gap: 18px;
  font-size: 14px;
  color: var(--muted);
}
.nav a:hover { color: var(--text); text-decoration: none; }

.section {
  padding: 72px 0;
  border-bottom: 1px solid var(--line);
}
.section--hero { padding-top: 88px; }
.section--last { border-bottom: none; padding-bottom: 88px; }

.grid {
  display: grid;
  gap: 18px;
}
.grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
@media (max-width: 860px) {
  .grid--2 { grid-template-columns: 1fr; }
  .nav { display: none; } /* simple mobile */
}

.eyebrow {
  display: inline-block;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
  margin: 0 0 12px;
}

h1 {
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.08;
  margin: 0 0 14px;
}
h2 {
  font-size: 28px;
  margin: 0 0 10px;
}
h3 {
  font-size: 18px;
  margin: 0 0 10px;
  color: var(--text);
}

.lead {
  font-size: 16px;
  color: var(--muted);
  margin: 0 0 14px;
}
.subhead {
  margin: 0 0 18px;
  color: var(--muted);
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}
.card--highlight {
  background: linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.05));
}

/* Lists */
.list { margin: 0; padding-left: 18px; color: var(--muted); line-height: 1.7; }
.list li { margin: 14px 0; }

.steps { margin: 0; padding-left: 18px; color: var(--muted); line-height: 1.75; }
.steps li { margin: 14px 0; }

.pill-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.pill-list li {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.05);
  color: var(--muted);
  font-size: 13px;
}

.quote {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: rgba(255,255,255,.78);
  font-style: italic;
}

.muted { color: var(--muted); }
.tiny { font-size: 12px; }

/* Technology intro paragraph spacing */
.intro { margin-top: 8px; }

.tech-steps { margin-top: 24px; }

.image-wrap {
  margin-top: 10px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(0,0,0,.25);
}
.image-wrap img {
  width: 100%;
  height: auto;
  display: block;
}

/* Contact map + form */
.map-wrap {
  margin-top: 10px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(0,0,0,.25);
  height: 340px;
}
.map-wrap iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.form {
  display: grid;
  gap: 12px;
  margin-top: 8px;
}
.form input,
.form textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: var(--text);
  outline: none;
  line-height: 1.5;
}
.form input:focus,
.form textarea:focus {
  border-color: rgba(255,255,255,.26);
}
.label {
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.12);
  text-decoration: none !important;
  font-size: 14px;
  cursor: pointer;
}
.button:hover { background: rgba(255,255,255,.16); }

.footer {
  padding: 24px 0;
  border-top: 1px solid var(--line);
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}