* {
  box-sizing: border-box;
}

:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #172033;
  --muted: #64748b;
  --line: #dbe3ef;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --shadow: 0 20px 60px rgba(15, 23, 42, 0.12);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.14), transparent 34rem),
    linear-gradient(135deg, #f8fafc 0%, var(--bg) 100%);
  color: var(--text);
}

.shell {
  width: min(980px, calc(100% - 40px));
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  place-items: center;
  padding: 56px 0;
}

.card {
  width: 100%;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: clamp(28px, 5vw, 56px);
  backdrop-filter: blur(12px);
}

.eyebrow {
  display: inline-flex;
  margin: 0 0 18px;
  padding: 8px 12px;
  border-radius: 999px;
  background: #eef4ff;
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 14px;
}

h1 {
  margin: 0;
  font-size: clamp(40px, 8vw, 76px);
  line-height: 0.96;
  letter-spacing: -0.06em;
}

.lead {
  max-width: 720px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2.2vw, 24px);
  line-height: 1.6;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  appearance: none;
  border: 0;
  border-radius: 14px;
  padding: 14px 18px;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

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

.button.primary:hover {
  background: var(--primary-dark);
}

.button.ghost {
  background: #eef2f7;
  color: var(--text);
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 36px 0 0;
}

.status-grid div,
.notice {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  background: #fbfdff;
}

dt {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

dd {
  margin: 8px 0 0;
  font-size: 16px;
  font-weight: 800;
}

.notice {
  margin-top: 28px;
  color: var(--text);
}

.notice ul {
  margin: 12px 0 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.8;
}

.code-block {
  margin: 28px 0 0;
  overflow-x: auto;
  border-radius: 18px;
  padding: 18px;
  background: #0f172a;
  color: #dbeafe;
  font-size: 14px;
  line-height: 1.6;
}

@media (max-width: 720px) {
  .status-grid {
    grid-template-columns: 1fr;
  }
}