:root {
  --accent: #2b6cb0;
  --accent-hover: #2c5282;
  --bg: #ffffff;
  --fg: #111111;
  --muted: #6b7280;
  --border: #e5e7eb;
  --row-hover: #f9fafb;
  --danger: #b91c1c;
  --radius: 0.375rem;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  font-size: 14px;
  line-height: 1.45;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: #fff;
  padding: 0.4rem 0.6rem;
  outline: none;
}

button {
  cursor: pointer;
  background: #fff;
  transition: background 0.1s ease, border-color 0.1s ease;
}
button:hover { border-color: var(--accent); }
button.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
button.primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
button.danger {
  background: #fff;
  color: var(--danger);
  border-color: var(--border);
}
button.danger:hover { border-color: var(--danger); }
button.ghost { border-color: transparent; background: transparent; }

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(43, 108, 176, 0.15);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar .brand {
  font-weight: 600;
  font-size: 1rem;
  color: var(--accent);
}
.topbar .nav {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.container {
  padding: 1.25rem;
  max-width: 1400px;
  margin: 0 auto;
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  background: #fff;
  margin-bottom: 1rem;
}

.card h2 {
  margin: 0 0 0.75rem 0;
  font-size: 1rem;
  font-weight: 600;
}

.row { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; }
.col { display: flex; flex-direction: column; gap: 0.5rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.75rem;
}

.field { display: flex; flex-direction: column; gap: 0.25rem; }
.field label { font-size: 0.8rem; color: var(--muted); }

.login-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
}
.login-box {
  width: 100%;
  max-width: 360px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  background: #fff;
}
.login-box h1 {
  margin: 0 0 1rem 0;
  font-size: 1.125rem;
  color: var(--accent);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
th, td {
  text-align: left;
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
th {
  font-weight: 600;
  background: #fafafa;
  position: sticky;
  top: 0;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}
th .sort-ind {
  color: var(--muted);
  font-size: 0.7rem;
  margin-left: 0.25rem;
}
tbody tr:hover { background: var(--row-hover); }
tbody tr.transferred { background: #f3f6fb; }

.table-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: auto;
  max-height: 70vh;
}

.badge {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius);
  font-size: 0.75rem;
  background: #f3f4f6;
  color: #374151;
  border: 1px solid var(--border);
}
.badge.accent { background: rgba(43, 108, 176, 0.1); color: var(--accent); border-color: rgba(43, 108, 176, 0.3); }
.badge.warn { background: #fff7ed; color: #9a3412; border-color: #fed7aa; }

.muted { color: var(--muted); font-size: 0.85rem; }

.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex; align-items: center; justify-content: center;
  z-index: 50;
  padding: 1rem;
}
.modal {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.25rem;
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow: auto;
}
.modal h3 { margin-top: 0; }

.toolbar { display: flex; gap: 0.5rem; margin-bottom: 0.75rem; flex-wrap: wrap; }
.toolbar .spacer { flex: 1; }

.rule-suggestion {
  background: #f9fafb;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
}

.rule-card {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 0.625rem 0.875rem;
  background: #fff;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.rule-head {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.rule-num {
  color: var(--accent);
  font-weight: 700;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85rem;
  background: rgba(43, 108, 176, 0.08);
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius);
  white-space: nowrap;
}
.rule-text { font-size: 0.9rem; line-height: 1.3; }
.kv {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  font-size: 0.8rem;
}
.kv .k { color: var(--muted); min-width: 9rem; }
.small { font-size: 0.8rem; }

.tier-row {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  flex-wrap: wrap;
}
.tier-pill {
  background: #fff;
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 0.1rem 0.45rem;
  border-radius: var(--radius);
  font-size: 0.75rem;
  font-weight: 500;
}
.tier-pill:last-child {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(43, 108, 176, 0.08);
}
.tier-arrow { color: var(--muted); font-size: 0.75rem; }

.rules-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 0.625rem;
}

.prior-box {
  margin-top: 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem 0.75rem;
  background: #fafbfc;
}
.prior-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.4rem;
}
.mini-table { font-size: 12px; }
.mini-table th, .mini-table td {
  padding: 0.3rem 0.4rem;
  border-bottom: 1px solid var(--border);
  background: transparent;
}
.mini-table th { background: transparent; position: static; }

.search-box {
  position: relative;
  width: 100%;
}
.search-box .results {
  position: absolute;
  top: 100%; left: 0; right: 0;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: var(--radius);
  max-height: 240px;
  overflow: auto;
  z-index: 5;
  margin-top: 0.25rem;
}
.search-box .results .item {
  padding: 0.5rem 0.6rem;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
}
.search-box .results .item:last-child { border-bottom: none; }
.search-box .results .item:hover { background: #f3f4f6; }
.search-box .results .item .num { color: var(--accent); font-weight: 600; margin-right: 0.5rem; }

.switch {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 20px;
}
.switch input { opacity: 0; width: 0; height: 0; }
.switch .slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: #d1d5db;
  transition: 0.15s;
  border-radius: var(--radius);
}
.switch .slider:before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 3px;
  top: 3px;
  background-color: white;
  transition: 0.15s;
  border-radius: var(--radius);
}
.switch input:checked + .slider { background-color: var(--accent); }
.switch input:checked + .slider:before { transform: translateX(16px); }

.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.tabs button {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  padding: 0.5rem 0.75rem;
  color: var(--muted);
}
.tabs button.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.action-btn {
  padding: 0.25rem 0.5rem;
  font-size: 0.8rem;
  background: transparent;
  border: 1px solid transparent;
}
.action-btn:hover { border-color: var(--border); }

.connection-status {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #d1d5db;
  margin-right: 0.5rem;
}
.connection-status.online { background: #10b981; }
.connection-status.offline { background: #ef4444; }

textarea { resize: vertical; min-height: 60px; }

@media (max-width: 700px) {
  .topbar { padding: 0.5rem 0.75rem; }
  .container { padding: 0.75rem; }
}