* {
  box-sizing: border-box;
}

:root {
  --bg: #07111a;
  --panel: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.08);
  --text: #f4f7fb;
  --muted: #98a7b8;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.28);
}

html, body {
  margin: 0;
  padding: 0;
  font-family: Inter, Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(0, 140, 255, 0.12), transparent 30%),
    radial-gradient(circle at top right, rgba(0, 255, 140, 0.08), transparent 25%),
    linear-gradient(180deg, #07111a 0%, #0b1722 100%);
  color: var(--text);
  min-height: 100vh;
}

.page {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 24px 48px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.topbar h1 {
  margin: 0 0 8px;
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.topbar p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.status-box {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.status {
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.status.online {
  color: #8df0b2;
  background: rgba(31, 122, 63, 0.25);
}

.status.offline {
  color: #ff9a9a;
  background: rgba(170, 43, 43, 0.24);
}

.status.neutral {
  color: #dfe8f3;
  background: rgba(255, 255, 255, 0.06);
}

.updated-at {
  color: var(--muted);
  font-size: 13px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
  gap: 18px;
}

.card {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  padding: 22px 22px 20px;
  min-height: 220px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.32);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.95;
  z-index: 0;
}

.card.positive::before {
  background:
    radial-gradient(circle at top right, rgba(132, 255, 170, 0.26), transparent 30%),
    linear-gradient(160deg, rgba(16, 63, 36, 0.96), rgba(8, 28, 17, 0.96));
}

.card.negative::before {
  background:
    radial-gradient(circle at top right, rgba(255, 124, 124, 0.24), transparent 30%),
    linear-gradient(160deg, rgba(73, 18, 18, 0.96), rgba(29, 8, 8, 0.96));
}

.card.neutral::before {
  background:
    radial-gradient(circle at top right, rgba(167, 188, 214, 0.16), transparent 30%),
    linear-gradient(160deg, rgba(24, 34, 49, 0.96), rgba(12, 18, 28, 0.96));
}

.card-content {
  position: relative;
  z-index: 1;
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
}

.symbol {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0;
}

.market-label {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.72);
  margin-top: 6px;
}

.badge {
  font-size: 12px;
  font-weight: 700;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: #eef4fb;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.price {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 18px;
}

.stats {
  display: grid;
  gap: 12px;
}

.stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.08);
}

.stat-label {
  color: rgba(255, 255, 255, 0.76);
  font-size: 13px;
}

.stat-value {
  font-size: 16px;
  font-weight: 800;
  color: #ffffff;
}

.footer-note {
  margin-top: 14px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.62);
}

.empty-state {
  grid-column: 1 / -1;
  border-radius: 24px;
  padding: 28px;
  text-align: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--muted);
}

@media (max-width: 640px) {
  .page {
    padding: 20px 16px 32px;
  }

  .topbar h1 {
    font-size: 28px;
  }

  .price {
    font-size: 34px;
  }

  .symbol {
    font-size: 22px;
  }
}