:root {
  --bg: #f4f5fb;
  --surface: #ffffff;
  --border: #e6e8f0;
  --text: #1f2430;
  --muted: #6b7280;
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-soft: #eef0fe;
  --green: #16a34a;
  --green-soft: #dcfce7;
  --amber: #d97706;
  --amber-soft: #fef3c7;
  --gray-soft: #eef0f4;
  --gray-text: #6b7280;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 4px 16px rgba(16, 24, 40, 0.06);
  --radius: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.muted { color: var(--muted); }

/* ---------- Buttons ---------- */
.btn {
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 9px 14px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
  background: transparent;
  color: var(--text);
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-dark); }
.btn-ghost {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { background: #fafbff; border-color: #d8dbe8; }
.btn-block { width: 100%; padding: 12px; font-size: 15px; }

/* ---------- Login ---------- */
.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: radial-gradient(1200px 600px at 50% -10%, #e8eaff 0%, var(--bg) 55%);
  padding: 24px;
}
.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 32px 28px;
}
.login-brand { text-align: center; margin-bottom: 22px; }
.login-logo {
  width: 56px; height: 56px;
  display: grid; place-items: center;
  margin: 0 auto 12px;
  font-size: 28px;
  background: var(--primary-soft);
  border-radius: 16px;
}
.login-brand h1 { margin: 0 0 4px; font-size: 22px; }
.login-card form { display: flex; flex-direction: column; gap: 14px; }
.login-card label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; font-weight: 600; color: #374151; }
.login-card input {
  padding: 11px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  background: #fbfbfe;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.login-card input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}
.form-error {
  margin: 4px 0 0;
  color: #dc2626;
  font-size: 13px;
  text-align: center;
}

/* ---------- Topbar ---------- */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.brand-logo {
  width: 34px; height: 34px; display: grid; place-items: center;
  background: var(--primary-soft); border-radius: 9px; font-size: 18px;
}
.brand-name { font-size: 16px; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }

/* ---------- Layout ---------- */
.container { max-width: 1180px; margin: 0 auto; padding: 24px; }

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}
.stat-label { font-size: 13px; color: var(--muted); font-weight: 600; }
.stat-value { font-size: 30px; font-weight: 700; margin: 6px 0 2px; letter-spacing: -0.02em; }
.stat-sub { font-size: 12px; color: var(--muted); }

/* ---------- Tabs ---------- */
.tabs {
  display: inline-flex;
  gap: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 4px;
  margin-bottom: 18px;
}
.tab {
  border: none;
  background: transparent;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  border-radius: 9px;
  cursor: pointer;
}
.tab.active { background: var(--primary); color: #fff; }

/* ---------- Panels ---------- */
.panel { display: none; }
.panel.active { display: block; }
.panel-head { margin-bottom: 14px; }
.panel-head h2 { margin: 0 0 4px; font-size: 18px; }
.panel-head .muted { margin: 0; font-size: 14px; }

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}
.filters select, .filters input {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 9px;
  font-size: 14px;
  background: var(--surface);
}
.filters input:focus, .filters select:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

/* ---------- Tables ---------- */
.table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow-x: auto;
}
table { width: 100%; border-collapse: collapse; }
thead th {
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  font-weight: 700;
  padding: 13px 16px;
  border-bottom: 1px solid var(--border);
  background: #fafbfe;
  white-space: nowrap;
}
tbody td {
  padding: 13px 16px;
  border-bottom: 1px solid #f0f1f6;
  vertical-align: top;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #fafbff; }
.num { text-align: right; }
td.num { text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; }
.empty { text-align: center; color: var(--muted); padding: 28px 16px; }
.cell-desc { max-width: 360px; }
.cell-raw { max-width: 280px; color: var(--muted); font-size: 13px; }

/* ---------- Badges ---------- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}
.badge-green { background: var(--green-soft); color: var(--green); }
.badge-amber { background: var(--amber-soft); color: var(--amber); }
.badge-gray  { background: var(--gray-soft); color: var(--gray-text); }

.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; vertical-align: middle; }
.dot-green { background: var(--green); }
.dot-amber { background: var(--amber); }
.dot-gray  { background: #9ca3af; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .cards { grid-template-columns: 1fr; }
  .topbar-actions .muted { display: none; }
}