:root {
  --bg: #f4f5f7;
  --bg-elevated: #ffffff;
  --bg-sidebar: #171a21;
  --text: #1c1f26;
  --text-dim: #6b7280;
  --text-sidebar: #cbd2e0;
  --border: #e2e4e9;
  --accent: #5b6cff;
  --accent-contrast: #ffffff;
  --success: #1f9d55;
  --error: #d64545;
  --radius: 10px;
  --mono: "JetBrains Mono", "Fira Code", ui-monospace, SFMono-Regular, Consolas, monospace;
  --sans: "Inter", -apple-system, "Segoe UI", Roboto, sans-serif;
}

:root[data-theme="dark"] {
  --bg: #12141a;
  --bg-elevated: #1a1d26;
  --bg-sidebar: #0d0f14;
  --text: #e6e8ee;
  --text-dim: #8b93a7;
  --text-sidebar: #a9b1c6;
  --border: #262a36;
  --accent: #7c8cff;
  --accent-contrast: #0d0f14;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12141a;
    --bg-elevated: #1a1d26;
    --bg-sidebar: #0d0f14;
    --text: #e6e8ee;
    --text-dim: #8b93a7;
    --text-sidebar: #a9b1c6;
    --border: #262a36;
    --accent: #7c8cff;
    --accent-contrast: #0d0f14;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

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

.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--bg-sidebar);
  color: var(--text-sidebar);
  padding: 20px 14px;
  overflow-y: auto;
}

.sidebar .brand {
  font-weight: 700;
  font-size: 16px;
  color: #fff;
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar .brand .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}

.sidebar nav a {
  display: block;
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--text-sidebar);
  margin-bottom: 2px;
  font-size: 13px;
}

.sidebar nav a:hover, .sidebar nav a.active {
  background: rgba(255,255,255,0.08);
  color: #fff;
  text-decoration: none;
}

.sidebar .section-label {
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin: 18px 10px 6px;
}

.sidebar .db-group { margin-bottom: 4px; }
.sidebar .db-group .db-link { font-weight: 600; }
.sidebar .table-link { padding-left: 22px !important; font-size: 12.5px; }
.sidebar .sys-badge {
  font-size: 9px; padding: 1px 5px; border-radius: 5px;
  background: rgba(255,255,255,0.1); margin-left: 6px; color: var(--text-dim);
}

.main { flex: 1; padding: 24px 32px; max-width: 100%; overflow-x: auto; }

.topbar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 20px;
}

.topbar h1 { font-size: 20px; margin: 0; }
.breadcrumb { color: var(--text-dim); font-size: 13px; margin-bottom: 4px; }
.breadcrumb a { color: var(--text-dim); }

.btn {
  display: inline-block;
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  font-family: inherit;
}

.btn:hover { border-color: var(--accent); }

.btn-primary {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: var(--accent);
  font-weight: 600;
}

.btn-danger { color: var(--error); border-color: var(--error); }
.btn-sm { padding: 4px 9px; font-size: 12px; }

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 10px;
}

.db-card { display: block; }
.db-card .name { font-weight: 700; font-size: 15px; margin-bottom: 6px; }
.db-card .meta { color: var(--text-dim); font-size: 12.5px; }

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

table.data-table th, table.data-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

table.data-table th {
  background: var(--bg);
  font-weight: 600;
  color: var(--text-dim);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

table.data-table th a { color: inherit; }
table.data-table tr:hover td { background: rgba(124,140,255,0.06); }
table.data-table td input {
  width: 100%; border: 1px solid transparent; background: transparent;
  color: var(--text); font-family: var(--mono); font-size: 12.5px; padding: 2px 4px; border-radius: 4px;
}
table.data-table td input:focus { border-color: var(--accent); background: var(--bg); }

.pagination { display: flex; gap: 6px; margin-top: 14px; align-items: center; }
.pagination .current { font-weight: 700; }

.toolbar { display: flex; gap: 8px; margin-bottom: 14px; align-items: center; flex-wrap: wrap; }
.toolbar input[type="text"], .toolbar select {
  padding: 7px 10px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg-elevated); color: var(--text); font-family: inherit; font-size: 13px;
}

.form-grid { display: grid; grid-template-columns: 160px 1fr; gap: 10px 14px; align-items: center; max-width: 640px; }
.form-grid label { color: var(--text-dim); font-size: 13px; }
.form-grid input[type="text"], .form-grid input[type="number"], .form-grid select, .form-grid textarea {
  padding: 7px 10px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg-elevated); color: var(--text); font-family: inherit; font-size: 13px; width: 100%;
}

.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 13px; }
.flash-success { background: rgba(31,157,85,0.12); color: var(--success); border: 1px solid rgba(31,157,85,0.3); }
.flash-error { background: rgba(214,69,69,0.12); color: var(--error); border: 1px solid rgba(214,69,69,0.3); }

.sql-editor-wrap { position: relative; }
.sql-editor {
  width: 100%; min-height: 160px; font-family: var(--mono); font-size: 13.5px;
  padding: 12px; border-radius: var(--radius); border: 1px solid var(--border);
  background: var(--bg-elevated); color: var(--text); resize: vertical; line-height: 1.5;
}
.sql-editor:focus { outline: none; border-color: var(--accent); }

.badge { font-size: 11px; padding: 2px 7px; border-radius: 6px; background: var(--bg); color: var(--text-dim); border: 1px solid var(--border); }
.badge-system { color: #b8860b; border-color: #b8860b; }

.theme-toggle {
  background: none; border: 1px solid var(--border); border-radius: 20px;
  width: 34px; height: 34px; cursor: pointer; color: var(--text); font-size: 15px;
}

.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card { width: 340px; }
.login-card h1 { font-size: 18px; margin-bottom: 4px; }
.login-card p.sub { color: var(--text-dim); font-size: 13px; margin-bottom: 18px; }
.login-card input { width: 100%; padding: 9px 12px; margin-bottom: 10px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg); color: var(--text); font-family: inherit; }
.login-card button { width: 100%; margin-top: 4px; }

.perm-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 18px; }
.perm-row {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px; border-radius: var(--radius); border: 1px solid var(--border);
  background: var(--bg); font-size: 15px; cursor: pointer;
}
.perm-row:hover { border-color: var(--accent); }
.perm-row input[type="checkbox"] { width: 20px; height: 20px; flex-shrink: 0; accent-color: var(--accent); }

.empty-state { color: var(--text-dim); padding: 30px; text-align: center; }
.muted { color: var(--text-dim); }
code.inline { font-family: var(--mono); background: var(--bg); padding: 1px 5px; border-radius: 4px; font-size: 12px; }
pre.sql-preview { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 12px; font-family: var(--mono); font-size: 13px; overflow-x: auto; }