:root {
  color-scheme: dark;
  --bg: #07111f;
  --bg-soft: rgba(14, 24, 42, 0.78);
  --card: rgba(12, 21, 38, 0.88);
  --card-border: rgba(148, 163, 184, 0.18);
  --text: #e5eefc;
  --muted: #97a6c1;
  --accent: #5eead4;
  --accent-2: #7dd3fc;
  --danger: #fb7185;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: Inter, "Segoe UI", "Noto Sans KR", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(45, 212, 191, 0.22), transparent 34%),
    radial-gradient(circle at top right, rgba(59, 130, 246, 0.18), transparent 28%),
    linear-gradient(180deg, #050b15 0%, var(--bg) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(148, 163, 184, 0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(148, 163, 184, 0.06) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 0.9), transparent 85%);
}

.shell {
  width: min(1100px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 32px 0 40px;
}

.card {
  border: 1px solid var(--card-border);
  background: linear-gradient(180deg, rgba(14, 24, 42, 0.92), rgba(9, 16, 30, 0.92));
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-radius: 28px;
  padding: 28px;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  font-weight: 700;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.03;
}

.lede {
  margin: 14px 0 0;
  color: var(--muted);
  max-width: 60ch;
  line-height: 1.65;
}

.hero-badge {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 8px 12px;
  border: 1px solid rgba(125, 211, 252, 0.28);
  background: rgba(15, 23, 42, 0.78);
  color: var(--accent-2);
  font-size: 0.9rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}

.metric {
  border-radius: 22px;
  padding: 20px;
  min-height: 160px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.metric p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.metric strong {
  display: block;
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  letter-spacing: -0.03em;
}

.metric span {
  color: var(--muted);
  font-size: 0.95rem;
}

.metric.accent {
  background: linear-gradient(180deg, rgba(15, 118, 110, 0.35), rgba(11, 19, 34, 0.9));
}

.details {
  border-radius: 22px;
  padding: 20px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 20px;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.detail-row:last-child {
  border-bottom: 0;
}

.detail-row span {
  color: var(--muted);
}

.button {
  border: 1px solid rgba(125, 211, 252, 0.24);
  border-radius: 999px;
  padding: 11px 16px;
  background: linear-gradient(180deg, rgba(34, 211, 238, 0.22), rgba(15, 23, 42, 0.72));
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
}

.button-light {
  background: rgba(15, 23, 42, 0.72);
}

.error {
  margin: 16px 0 0;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid rgba(251, 113, 133, 0.28);
  background: rgba(127, 29, 29, 0.28);
  color: #fecdd3;
}

.hidden {
  display: none;
}

@media (max-width: 900px) {
  .hero,
  .details,
  .grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero {
    flex-direction: column;
  }

  .hero-badge {
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100vw - 14px, 1100px);
    padding-top: 8px;
  }

  .hero {
    padding: 12px 14px;
    gap: 10px;
    margin-bottom: 8px;
  }

  .hero h1 {
    font-size: clamp(1.25rem, 5vw, 1.75rem);
    line-height: 1.1;
  }

  .lede {
    display: none;
  }

  .hero-badge {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 8px;
  }

  .badge {
    padding: 5px 9px;
    font-size: 0.76rem;
  }

  .button {
    min-height: 36px;
    padding: 8px 12px;
    font-size: 0.85rem;
  }

  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
    margin-bottom: 8px;
  }

  .metric {
    min-height: 92px;
    padding: 10px 11px;
    border-radius: 16px;
  }

  .metric p {
    font-size: 0.72rem;
  }

  .metric strong {
    font-size: clamp(1.08rem, 4.2vw, 1.5rem);
    line-height: 1.05;
  }

  .metric span {
    font-size: 0.72rem;
    line-height: 1.15;
  }

  .details {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px 12px;
    padding: 10px 12px;
    border-radius: 16px;
  }

  .detail-row {
    padding: 5px 0;
    gap: 8px;
    font-size: 0.8rem;
  }

  .detail-row span,
  .detail-row strong {
    line-height: 1.2;
  }

  .error {
    margin-top: 8px;
    padding: 10px 12px;
    font-size: 0.82rem;
    border-radius: 12px;
  }
}