:root {
  --bg: #0f172a;
  --panel: #111827;
  --panel-2: #1f2937;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --line: #334155;
  --accent: #60a5fa;
  --accent-2: #2563eb;
  --warn: #f59e0b;
  --good: #34d399;
  --bad: #f87171;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  padding: 28px 32px 18px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(135deg, #111827, #0f172a 60%, #1e293b);
}
h1 { margin: 0 0 8px; font-size: 28px; }
h2, h3 { margin-top: 0; }
.subtitle { margin: 0; color: var(--muted); }
.badge {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #bfdbfe;
  background: rgba(37, 99, 235, .15);
  white-space: nowrap;
}
main { max-width: 1440px; margin: 0 auto; padding: 24px; }
.notice, .panel, .help {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px;
  margin-bottom: 18px;
}
.notice { border-color: rgba(245, 158, 11, .5); }
.notice strong { color: #fde68a; }
.tabs { display: flex; gap: 8px; margin: 18px 0; }
.tab-btn {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  padding: 12px 22px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 16px;
}
.tab-btn.active { background: var(--accent-2); border-color: var(--accent); }
.panel-head { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; }
.hint { color: var(--muted); margin-top: 4px; }
.source-box {
  min-width: 200px;
  padding: 12px 16px;
  border-radius: 14px;
  background: #0b1220;
  border: 1px solid var(--line);
  display: grid;
  gap: 3px;
}
.source-box span, .source-box small { color: var(--muted); }
.source-box strong { color: #bfdbfe; }
.controls { margin-top: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(160px, 1fr)); gap: 12px; }
label span { display: block; color: var(--muted); margin-bottom: 6px; font-size: 14px; }
input, select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #0b1220;
  color: var(--text);
  font-size: 15px;
}
button {
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
}
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent-2); border-color: var(--accent); }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; align-items: center; }
.filebar { padding-top: 4px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; }
table { width: 100%; border-collapse: collapse; min-width: 1050px; }
th, td { border-bottom: 1px solid var(--line); padding: 8px; text-align: left; }
th { background: #0b1220; color: #bfdbfe; font-weight: 600; white-space: nowrap; }
td input { min-width: 100px; padding: 8px; }
td .small-btn { padding: 6px 8px; }
.summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 12px;
  margin: 18px 0;
}
.summary div {
  padding: 14px;
  background: #0b1220;
  border: 1px solid var(--line);
  border-radius: 14px;
}
.summary span { display: block; color: var(--muted); margin-bottom: 6px; }
.summary strong { font-size: 18px; }
.good { color: var(--good); }
.bad { color: var(--bad); }
.warn { color: var(--warn); }
.help-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.help-grid div { background: #0b1220; border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
code { color: #bfdbfe; background: #020617; padding: 2px 5px; border-radius: 4px; }
footer { color: var(--muted); text-align: center; padding: 24px; }
@media (max-width: 900px) {
  .app-header, .panel-head { flex-direction: column; }
  .grid-4, .summary, .help-grid { grid-template-columns: 1fr; }
  main { padding: 14px; }
}