:root {
  --color-bg: #f6f7fb;
  --color-surface: #ffffff;
  --color-surface-2: #f1f3f9;
  --color-border: #e2e6ee;
  --color-border-strong: #c7cdda;
  --color-text: #1b2030;
  --color-text-muted: #5b6378;
  --color-primary: #0f5af0;
  --color-primary-hover: #0a47c4;
  --color-primary-soft: #e6efff;
  --color-success: #138a3a;
  --color-warning: #c47a06;
  --color-danger: #c5304a;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(15, 22, 36, 0.06);
  --shadow-md: 0 6px 24px rgba(15, 22, 36, 0.08);
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace;
}

* { box-sizing: border-box; }

html, body, #root { height: 100%; margin: 0; }

body {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

button { font-family: inherit; font-size: inherit; cursor: pointer; }

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

.btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: 8px 14px; border-radius: var(--radius-md); border: 1px solid var(--color-border-strong);
  background: var(--color-surface); color: var(--color-text);
  font-weight: 500; transition: background-color 80ms ease, border-color 80ms ease;
}
.btn:hover { background: var(--color-surface-2); }
.btn-primary { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }
.btn-danger { background: var(--color-danger); border-color: var(--color-danger); color: #fff; }
.btn-danger:hover { filter: brightness(0.95); }
.btn-ghost { border-color: transparent; background: transparent; color: var(--color-text-muted); }
.btn-ghost:hover { color: var(--color-text); background: var(--color-surface-2); }

.input, .select {
  padding: 8px 10px; border: 1px solid var(--color-border-strong); border-radius: var(--radius-md);
  background: var(--color-surface); color: var(--color-text); width: 100%;
}
.input:focus, .select:focus { outline: 2px solid var(--color-primary-soft); outline-offset: 1px; border-color: var(--color-primary); }

.label { font-size: 12px; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.05em; }

.card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-5); box-shadow: var(--shadow-sm);
}

.muted { color: var(--color-text-muted); }
.tag { display: inline-block; padding: 2px 8px; border-radius: 999px; background: var(--color-surface-2); color: var(--color-text); font-size: 12px; }
.tag-success { background: #dff2e3; color: var(--color-success); }
.tag-warning { background: #fff1d6; color: var(--color-warning); }
.tag-danger { background: #fde4ea; color: var(--color-danger); }

/* --- Layout --- */
.app-shell { display: flex; flex-direction: column; min-height: 100%; }
.app-header {
  display: flex; align-items: center; gap: var(--space-4);
  padding: var(--space-3) var(--space-5);
  background: var(--color-surface); border-bottom: 1px solid var(--color-border);
}
.app-header .logo { font-weight: 700; font-size: 18px; letter-spacing: -0.01em; }
.app-header .org { color: var(--color-text-muted); }
.app-header .spacer { flex: 1; }
.app-main { flex: 1; padding: var(--space-5); }

.dashboard {
  display: grid; grid-template-columns: 280px 1fr; gap: var(--space-5);
  align-items: start;
}
@media (max-width: 1100px) { .dashboard { grid-template-columns: 1fr; } }

.summary-row {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4);
  margin-bottom: var(--space-4);
}
@media (max-width: 900px) { .summary-row { grid-template-columns: repeat(2, 1fr); } }
.summary-card .num { font-size: 28px; font-weight: 700; }
.summary-card .lbl { color: var(--color-text-muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }

/* --- Filters --- */
.filters-side { position: sticky; top: var(--space-5); }
.filters-side h3 { margin: 0 0 var(--space-3) 0; font-size: 14px; }
.filter-group { padding: var(--space-3) 0; border-bottom: 1px solid var(--color-border); }
.filter-group:last-child { border-bottom: none; }
.filter-group .ttl { font-weight: 600; margin-bottom: var(--space-2); display: flex; align-items: center; gap: var(--space-2); }
.filter-group .badge { background: var(--color-primary-soft); color: var(--color-primary); border-radius: 999px; padding: 0 6px; font-size: 11px; }
.checkbox { display: flex; align-items: center; gap: var(--space-2); padding: 4px 0; }
.checkbox input { accent-color: var(--color-primary); }
.range-row { display: flex; gap: var(--space-2); }
.range-row .input { flex: 1; }

/* --- Toolbar --- */
.toolbar {
  display: flex; align-items: center; gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.toolbar .grow { flex: 1; }
.search { position: relative; min-width: 280px; }
.search .input { padding-left: 32px; }
.search .icon { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); color: var(--color-text-muted); }

/* --- Table --- */
.table-wrap { overflow: auto; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); }
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th, .table td {
  text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}
.table th { background: var(--color-surface-2); position: sticky; top: 0; font-weight: 600; cursor: pointer; user-select: none; }
.table th .sort { color: var(--color-text-muted); font-size: 10px; margin-left: 4px; }
.table tbody tr:hover { background: var(--color-surface-2); }
.table tbody tr.selected { background: var(--color-primary-soft); }
.table .empty { padding: var(--space-6); text-align: center; color: var(--color-text-muted); }

/* --- Drawer --- */
.drawer-backdrop { position: fixed; inset: 0; background: rgba(15, 22, 36, 0.4); z-index: 30; }
.drawer {
  position: fixed; right: 0; top: 0; bottom: 0; width: min(480px, 90vw);
  background: var(--color-surface); box-shadow: var(--shadow-md); z-index: 31; padding: var(--space-5); overflow-y: auto;
}
.drawer h2 { margin: 0 0 var(--space-4) 0; }
.drawer .row { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px dashed var(--color-border); }
.drawer .row .k { color: var(--color-text-muted); }
.drawer .close { position: absolute; top: var(--space-3); right: var(--space-3); }

/* --- Modal --- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(15, 22, 36, 0.4); z-index: 40; display: flex; align-items: center; justify-content: center; }
.modal { background: var(--color-surface); border-radius: var(--radius-lg); padding: var(--space-5); width: min(520px, 92vw); box-shadow: var(--shadow-md); }
.modal h2 { margin: 0 0 var(--space-3) 0; }

/* --- Charts --- */
.charts { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); margin-top: var(--space-4); }
@media (max-width: 900px) { .charts { grid-template-columns: 1fr; } }
.chart-card h4 { margin: 0 0 var(--space-3) 0; font-size: 14px; }
.bars { display: flex; gap: 4px; align-items: end; height: 160px; }
.bar { background: var(--color-primary); border-radius: 4px 4px 0 0; flex: 1; min-width: 4px; position: relative; }
.bar:hover { background: var(--color-primary-hover); }
.bar .lbl { position: absolute; bottom: -18px; left: 50%; transform: translateX(-50%); font-size: 10px; color: var(--color-text-muted); white-space: nowrap; }
.legend { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-3); font-size: 12px; }
.legend .swatch { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }

/* --- Login --- */
.login-shell {
  display: grid; place-items: center; min-height: 100%; padding: var(--space-6);
}
.login-card { width: min(420px, 100%); }
.login-card h1 { margin: 0 0 var(--space-2) 0; font-size: 26px; }
.login-card p { color: var(--color-text-muted); margin: 0 0 var(--space-4) 0; }
.login-card .btn { width: 100%; justify-content: center; padding: 12px 14px; font-size: 15px; }

.footer { padding: var(--space-3) var(--space-5); color: var(--color-text-muted); font-size: 12px; text-align: center; }

.column-list { max-height: 300px; overflow: auto; }