:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --text: #1c1e24;
  --muted: #6b6f7b;
  --border: #dcdfe5;
  --accent: #3b5bdb;
  --accent-text: #ffffff;
  --danger: #c92a2a;
  --warn-bg: #fff4d6;
  --warn-text: #7a5300;
  --error-bg: #ffe3e3;
  --error-text: #9b1c1c;
  --ok-bg: #e3f7e8;
  --ok-text: #1f6b35;
  --changed: #fff1c2;
  --input-bg: #ffffff;
  --radius: 8px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161c;
    --panel: #1d2028;
    --text: #e8e8ec;
    --muted: #9a9eab;
    --border: #2f333e;
    --accent: #5c7cfa;
    --accent-text: #ffffff;
    --danger: #ff6b6b;
    --warn-bg: #3a3014;
    --warn-text: #ffd479;
    --error-bg: #3b1c1f;
    --error-text: #ffb3b3;
    --ok-bg: #173323;
    --ok-text: #8ce0a5;
    --changed: #3d3615;
    --input-bg: #15171d;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
}
button, input, select, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }

.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
  padding: 10px 16px;
  background: var(--panel); border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; }
.brand span { color: var(--muted); font-weight: 500; }
.tabs { display: flex; gap: 4px; flex: 1; }
.tabs a {
  padding: 6px 12px; border-radius: var(--radius);
  color: var(--muted); text-decoration: none; font-weight: 600;
}
.tabs a.active { background: var(--bg); color: var(--text); }
.user { display: flex; align-items: center; gap: 10px; color: var(--muted); }

main { max-width: 1200px; margin: 0 auto; padding: 20px 16px 80px; }

.card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px; margin-bottom: 16px;
}
.card h2 { margin: 0 0 12px; font-size: 16px; }
.auth { max-width: 380px; margin: 10vh auto 0; }
.auth h1 { font-size: 20px; margin: 0 0 4px; }
.auth p { color: var(--muted); margin: 0 0 16px; }
.auth label { display: block; margin: 12px 0 4px; font-weight: 600; }
.auth input { width: 100%; }
.auth button { width: 100%; margin-top: 16px; }

input[type="text"], input[type="email"], input[type="password"], input[type="number"], select, textarea {
  background: var(--input-bg); border: 1px solid var(--border);
  border-radius: 6px; padding: 6px 8px; min-width: 0;
}
input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 1px;
}
textarea { width: 100%; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 12px; }

button {
  border: 1px solid var(--accent); background: var(--accent); color: var(--accent-text);
  border-radius: 6px; padding: 7px 14px; font-weight: 600; cursor: pointer;
}
button.ghost { background: transparent; color: var(--text); border-color: var(--border); }
button.danger { background: var(--danger); border-color: var(--danger); }
button:disabled { opacity: 0.5; cursor: default; }

.toolbar {
  position: sticky; top: 52px; z-index: 5;
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 10px 12px; margin-bottom: 16px;
}
.toolbar .spacer { flex: 1; }
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 99px;
  background: var(--bg); color: var(--muted); font-size: 12px; font-weight: 600;
}
.badge.changed { background: var(--changed); color: var(--text); }

.messages { margin-bottom: 16px; }
.msg { border-radius: var(--radius); padding: 10px 12px; margin-bottom: 8px; }
.msg.error { background: var(--error-bg); color: var(--error-text); }
.msg.warn { background: var(--warn-bg); color: var(--warn-text); }
.msg.ok { background: var(--ok-bg); color: var(--ok-text); }
.msg ul { margin: 6px 0 0; padding-left: 18px; }

.fields { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 8px 16px; }
.field {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 6px 8px; border-radius: 6px;
}
.field.wide { grid-column: 1 / -1; flex-direction: column; align-items: stretch; }
.field label { font-weight: 500; overflow-wrap: anywhere; }
.field label small { display: block; color: var(--muted); font-weight: 400; font-size: 11px; }
.field input[type="number"] { width: 110px; text-align: right; }
.field input[type="text"], .field select { width: 180px; }
.field.wide input[type="text"] { width: 100%; }
.field.changed, td.changed { background: var(--changed); }
.field input[type="checkbox"] { width: 18px; height: 18px; }

.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; }
th, td { border-bottom: 1px solid var(--border); padding: 4px 6px; text-align: left; vertical-align: middle; white-space: nowrap; }
th { font-size: 12px; color: var(--muted); font-weight: 600; position: sticky; top: 0; background: var(--panel); }
td input[type="number"] { width: 80px; text-align: right; }
td input[type="text"] { width: 160px; }
td.notes input[type="text"] { width: 260px; }

.modal-backdrop {
  position: fixed; inset: 0; z-index: 50; background: rgba(0, 0, 0, 0.45);
  display: grid; place-items: center; padding: 16px;
}
.modal {
  background: var(--panel); border-radius: var(--radius); border: 1px solid var(--border);
  width: min(720px, 100%); max-height: 85vh; display: flex; flex-direction: column;
}
.modal header, .modal footer { padding: 14px 16px; }
.modal header h3 { margin: 0; }
.modal .body { padding: 0 16px; overflow: auto; }
.modal footer { display: flex; justify-content: flex-end; gap: 8px; border-top: 1px solid var(--border); }

.changes { width: 100%; font-size: 13px; }
.changes td { white-space: normal; overflow-wrap: anywhere; }
.changes .before { color: var(--danger); }
.changes .after { color: var(--ok-text); font-weight: 600; }
code, .mono { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 12px; }

.history details summary { cursor: pointer; }

.filter-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px 16px; }
.filter { display: flex; flex-direction: column; gap: 4px; font-weight: 600; }
.filter input, .filter select { width: 100%; font-weight: 400; }
.checks { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 12px; }
.check { display: inline-flex; align-items: center; gap: 6px; }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: var(--bg); }
.toolbar-inline { display: flex; flex-wrap: wrap; gap: 8px; }
pre.json { white-space: pre-wrap; overflow-wrap: anywhere; max-height: 40vh; overflow: auto; background: var(--bg); padding: 8px; border-radius: 6px; }
.modal h4 { margin: 14px 0 6px; }
.badge + .badge { margin-left: 4px; }
.muted { color: var(--muted); }

.toast {
  position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); z-index: 60;
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: var(--radius);
  max-width: calc(100% - 32px);
}

@media (max-width: 640px) {
  .toolbar { top: 96px; }
  .fields { grid-template-columns: 1fr; }
}