:root {
  --bg: #0b0f1a;
  --card: #12172a;
  --accent: #6cf2c2;
  --accent-soft: rgba(108, 242, 194, 0.15);
  --text: #e6e9f0;
  --muted: #9aa3b2;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Pretendard', 'Apple SD Gothic Neo', 'Noto Sans KR', sans-serif;
}

body {
  min-height: 100vh;
  background: radial-gradient(circle at top, #141a33, var(--bg));
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
}

.container {
  width: 100%;
  max-width: 960px;
  padding: 48px 32px;
}

.card {
  background: linear-gradient(180deg, var(--card), #0f1426);
  border-radius: 24px;
  padding: 56px 48px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 0%, var(--accent-soft), transparent 40%),
    radial-gradient(circle at 80% 100%, rgba(108, 180, 242, 0.12), transparent 40%);
  pointer-events: none;
}

header {
  margin-bottom: 48px;
}

.badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(108, 242, 194, 0.12);
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

h1 {
  font-size: 56px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 16px;
}

h1 span {
  color: var(--accent);
}

.subtitle {
  font-size: 18px;
  color: var(--muted);
  max-width: 640px;
  line-height: 1.6;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 56px;
}

.feature {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  padding: 28px 24px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.feature:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.feature h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.feature p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.6;
}

footer {
  margin-top: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.status {
  font-size: 14px;
  color: var(--muted);
}

.cta {
  padding: 14px 22px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), #6cb4f2);
  color: #08120d;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 8px 24px rgba(108, 242, 194, 0.35);
}

.cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(108, 242, 194, 0.45);
}

@media (max-width: 640px) {
  h1 { font-size: 40px; }
  .card { padding: 40px 28px; }
}