:root {
  --bg: #f4f5f7; --panel: #fff; --text: #1d2430; --muted: #667085; --line: #d9dee6;
  --accent: #1f5fbf; --accent-text: #fff; --warn-bg: #fff4d6; --warn: #7a5200; --ok: #17723d; --bad: #b42318; --hover: #eef2f8;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #14181f; --panel: #1d232c; --text: #e7eaf0; --muted: #9aa4b2; --line: #333c49; --accent: #5b94ea; --accent-text: #0c1320; --warn-bg: #3a2f10; --warn: #f2cf79; --ok: #62cf8d; --bad: #f58f85; --hover: #262e3a; }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.45 system-ui, "Segoe UI", Arial, sans-serif; }
h1 { font-size: 20px; margin: 0; } h2 { font-size: 16px; margin: 20px 0 8px; }
.muted { color: var(--muted); } .bad { color: var(--bad); } .ok { color: var(--ok); } .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.top { background: var(--panel); border-bottom: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 4px 12px; align-items: center; padding: 8px 16px; position: sticky; top: 0; z-index: 5; }
.brand { font-weight: 700; margin-right: 12px; }
.top nav { display: flex; flex-wrap: wrap; gap: 2px; flex: 1; }
.tab { background: none; border: 0; color: var(--text); padding: 6px 12px; border-radius: 6px; cursor: pointer; font: inherit; }
.tab:hover { background: var(--hover); } .tab.on { background: var(--accent); color: var(--accent-text); }
main { padding: 16px; max-width: 1400px; margin: 0 auto; }
.bar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 12px; } .bar .grow { flex: 1; min-width: 160px; }
button, .btn { font: inherit; padding: 6px 12px; border: 1px solid var(--line); background: var(--panel); color: var(--text); border-radius: 6px; cursor: pointer; text-decoration: none; display: inline-block; }
button:hover, .btn:hover { background: var(--hover); }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); } button.primary:hover { filter: brightness(1.08); }
button.small, .btn.small { padding: 2px 8px; font-size: 13px; } button:disabled { opacity: .5; cursor: default; }
input, select, textarea { font: inherit; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); color: var(--text); max-width: 100%; }
input:focus-visible, select:focus-visible, button:focus-visible, .tab:focus-visible, .btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.table-wrap { overflow-x: auto; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; }
table { border-collapse: collapse; width: 100%; }
th, td { padding: 6px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { font-weight: 600; color: var(--muted); font-size: 13px; white-space: nowrap; background: var(--panel); }
tr:last-child td { border-bottom: 0; } tr.click { cursor: pointer; } tr.click:hover td { background: var(--hover); }
th.num { text-align: right; }
.notice { background: var(--warn-bg); color: var(--warn); padding: 8px 12px; border-radius: 6px; margin-bottom: 12px; }
.error-toast { position: fixed; bottom: 16px; left: 16px; right: 16px; max-width: 560px; margin: auto; background: var(--bad); color: #fff; padding: 10px 14px; border-radius: 8px; z-index: 50; }
.info-toast { position: fixed; bottom: 16px; left: 16px; right: 16px; max-width: 560px; margin: auto; background: var(--ok); color: #fff; padding: 10px 14px; border-radius: 8px; z-index: 50; }
.badge { font-size: 12px; padding: 1px 8px; border-radius: 10px; border: 1px solid var(--line); white-space: nowrap; }
.badge.warn { background: var(--warn-bg); color: var(--warn); border-color: transparent; }
.form { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 10px; }
.form label, .field { display: flex; flex-direction: column; gap: 3px; font-size: 13px; color: var(--muted); } .form input, .form select { color: var(--text); width: 100%; }
.form .wide { grid-column: 1 / -1; }
dialog { border: 1px solid var(--line); border-radius: 10px; background: var(--panel); color: var(--text); padding: 18px; width: min(780px, calc(100vw - 24px)); max-height: calc(100vh - 32px); }
dialog::backdrop { background: rgba(0, 0, 0, .4); }
.dialog-head { display: flex; justify-content: space-between; align-items: start; gap: 12px; margin-bottom: 12px; }
.center { display: flex; justify-content: center; padding: 56px 16px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 22px; width: min(400px, 100%); }
.card h1 { margin-bottom: 14px; } .card .form { grid-template-columns: 1fr; }
.empty { padding: 28px; text-align: center; color: var(--muted); }
.total { font-weight: 600; margin: 10px 0; text-align: right; }
.nowrap { white-space: nowrap; }
.qty-input { width: 90px; text-align: right; padding: 2px 6px; }