:root {
  --bg: #f4f4f1;
  --panel: #ffffff;
  --ink: #1f2428;
  --muted: #6b7280;
  --accent: #3b5166;
  --accent-2: #c97d30;
  --danger: #b0413e;
  --line: #dfded8;
  --mono: 'SF Mono', Consolas, monospace;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: var(--bg); color: var(--ink); }
.app { max-width: 1100px; margin: 24px auto; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
header { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; background: var(--panel); border-bottom: 1px solid var(--line); }
.title { font-weight: 700; font-size: 15px; }
.subtitle { font-size: 11.5px; color: var(--muted); }
.save-indicator { font-size: 11px; color: var(--muted); }
.tabs { display: flex; gap: 2px; padding: 0 12px; background: var(--panel); border-bottom: 1px solid var(--line); }
.tab-btn { padding: 10px 12px; font-size: 12.5px; font-weight: 500; background: transparent; border: none; border-bottom: 2px solid transparent; color: var(--muted); cursor: pointer; }
.tab-btn.active { color: var(--ink); border-bottom: 2px solid var(--accent-2); }
main { padding: 18px; }
.form-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 14px; }
input, select { flex: 1; min-width: 90px; padding: 8px 10px; font-size: 13px; border: 1px solid var(--line); border-radius: 5px; background: var(--panel); color: var(--ink); font-family: inherit; }
.primary-btn { padding: 8px 14px; font-size: 12.5px; font-weight: 600; background: var(--accent); color: #fff; border: none; border-radius: 5px; cursor: pointer; }
.icon-btn { background: transparent; border: none; cursor: pointer; color: var(--muted); font-size: 13px; }
.table-wrap { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; padding: 9px 12px; font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); border-bottom: 1px solid var(--line); }
td { padding: 9px 12px; border-bottom: 1px solid var(--line); }
.mono { font-family: var(--mono); }
.empty-row { padding: 20px; text-align: center; color: var(--muted); font-size: 12.5px; }
.help-text { font-size: 12.5px; color: var(--muted); margin-bottom: 12px; max-width: 640px; }
.badge { font-size: 10.5px; font-weight: 600; padding: 2px 8px; border-radius: 20px; }
.tree-wrap { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 8px 4px; }
.tree-row { display: flex; align-items: center; padding: 6px 12px; font-size: 13px; border-bottom: 1px solid #f0efe9; }
.tree-row .right { margin-left: auto; font-family: var(--mono); font-size: 12.5px; }
.ok-banner { padding: 16px; text-align: center; color: #2f6e4f; background: #eef7f1; font-size: 13px; }