:root {
  color-scheme: light;
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: #f4f5f8;
  color: #1c1f26;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #f4f5f8;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 2rem;
  background: #101320;
  color: #f5f7ff;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.04em;
}

.nav a {
  color: #cdd3ff;
  text-decoration: none;
  margin-right: 1rem;
  padding-bottom: 0.2rem;
  border-bottom: 2px solid transparent;
}

.nav a.active {
  color: #ffffff;
  border-color: #6ea8fe;
}

.user-key {
  font-size: 0.85rem;
  opacity: 0.7;
}

.content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem;
  display: grid;
  gap: 1.5rem;
}

.panel {
  background: #ffffff;
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 8px 20px rgba(16, 19, 32, 0.08);
}

.subtitle {
  color: #5f667a;
  margin-top: 0.4rem;
}

.form {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.inline-form {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  align-items: end;
}

label {
  display: grid;
  gap: 0.4rem;
  font-weight: 600;
  color: #2b3040;
}

input,
select {
  padding: 0.6rem 0.75rem;
  border-radius: 10px;
  border: 1px solid #d7dbe7;
  font-size: 1rem;
}

button {
  padding: 0.7rem 1.2rem;
  border: none;
  border-radius: 10px;
  background: #1f4eea;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 12px rgba(31, 78, 234, 0.2);
}

button.secondary {
  background: #111827;
}

button.ghost {
  background: transparent;
  color: #e11d48;
  border: 1px solid #f3c4d0;
}

.list {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}

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

.card {
  display: block;
  padding: 1rem;
  border-radius: 12px;
  border: 1px solid #e2e6f0;
  text-decoration: none;
  color: inherit;
  background: #fafbff;
}

.card h3 {
  margin: 0;
}

.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem;
  border-radius: 10px;
  border: 1px solid #eef1f7;
  background: #f9fafc;
}

.row .muted {
  margin-left: 0.5rem;
}

.chain-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.insights {
  display: grid;
  gap: 1rem;
}

.insight-block {
  border: 1px solid #eef1f7;
  border-radius: 12px;
  padding: 1rem;
  background: #fcfdff;
}

.insight {
  padding: 0.6rem 0;
  border-bottom: 1px solid #edf0f7;
}

.insight:last-child {
  border-bottom: none;
}

.insight-title {
  font-weight: 600;
}

.muted {
  color: #6c7284;
  font-size: 0.9rem;
}

.empty {
  color: #9aa1b4;
}

@media (max-width: 720px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }

  .content {
    padding: 1.5rem;
  }
}