:root {
  --bg: #0f1116;
  --line: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --primary: #1d4ed8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100dvh;
  background: radial-gradient(circle at 15% 10%, #1d4ed833, transparent 36%), var(--bg);
  color: var(--text);
  font-family: 'Noto Sans KR', sans-serif;
}

.page-shell {
  width: min(720px, 94vw);
  margin: 1rem auto 2rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
}

.back-btn,
.link-btn {
  display: inline-block;
  color: #cbd5e1;
  text-decoration: none;
  border: 1px solid #475569;
  border-radius: 10px;
  padding: 0.35rem 0.55rem;
}

.card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: linear-gradient(180deg, #111827 0%, #0f172a 100%);
  padding: 0.95rem;
  margin-top: 0.75rem;
}

h1 {
  margin: 0 0 0.7rem;
  font-family: 'Do Hyeon', sans-serif;
  font-size: 1.9rem;
}

.geo-card {
  margin: 0 0 0.9rem;
  padding: 0.8rem 0.85rem;
  border: 1px solid #2d4568;
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(29, 78, 216, 0.14) 0%, rgba(15, 23, 42, 0.88) 100%);
}

.geo-kicker {
  margin: 0;
  color: #93c5fd;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.geo-summary {
  margin: 0.35rem 0 0;
  font-size: 1rem;
  font-weight: 700;
  color: #eff6ff;
}

.geo-hint {
  margin: 0.28rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

label {
  display: block;
  margin: 0.55rem 0 0.25rem;
}

input {
  width: 100%;
  border: 1px solid #334155;
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 8px;
  padding: 0.54rem 0.6rem;
  font: inherit;
}

.actions {
  margin-top: 0.8rem;
}

.primary-btn {
  border: 1px solid #1e40af;
  background: var(--primary);
  color: #eff6ff;
  border-radius: 9px;
  padding: 0.55rem 0.8rem;
  font: inherit;
  cursor: pointer;
}

.muted {
  margin: 0.45rem 0 0;
  color: var(--muted);
}