:root {
  color-scheme: dark;
  --bg: #0c111c;
  --card: #141b2d;
  --muted: #95a4c5;
  --text: #e8ecf8;
  --accent: #4f8cff;
  --border: #2a3552;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, Segoe UI, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

header {
  padding: 20px;
  border-bottom: 1px solid var(--border);
}

header h1 {
  margin: 0 0 6px 0;
  font-size: 24px;
}

header p {
  margin: 0;
  color: var(--muted);
}

main {
  padding: 20px;
  display: grid;
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: end;
}

label {
  display: block;
  margin-bottom: 6px;
}

input {
  min-width: 380px;
  max-width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0f1526;
  color: var(--text);
}

button {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 9px 12px;
  cursor: pointer;
}

button.secondary {
  background: #263454;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 8px;
}

th,
td {
  border-bottom: 1px solid var(--border);
  text-align: left;
  padding: 10px 8px;
  font-size: 14px;
}

th {
  color: var(--muted);
  font-weight: 600;
}

.status {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

.mode-row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.hint {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 10px 0 16px;
}

.summary-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  background: #0f1526;
}

.summary-label {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 6px;
}

pre {
  margin: 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #0f1526;
  max-height: 350px;
  overflow: auto;
}

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

  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  input {
    min-width: 240px;
  }
}