:root {
  --primary: #2563eb;
  --success: #16a34a;
  --danger: #dc2626;
  --warning: #f59e0b;
  --dark: #0f172a;
  --bg: #f1f5f9;
  --line: #dbe3ef;
  --muted: #64748b;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--dark);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(37, 99, 235, .12), rgba(22, 163, 74, .08)),
    #eef3fb;
}
.login-panel {
  width: min(420px, 100%);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 24px 70px rgba(15, 23, 42, .14);
}
.login-panel h1 { margin: 12px 0 4px; font-size: 30px; }
.login-panel p { margin: 0 0 22px; color: var(--muted); }

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
}
.sidebar {
  background: var(--dark);
  color: #fff;
  padding: 22px 16px;
}
.brand-row {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 6px 8px 24px;
}
.brand-row strong { display: block; font-size: 18px; }
.brand-row span { display: block; color: #94a3b8; font-size: 13px; }
.brand-mark {
  width: 46px;
  height: 46px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #0ea5e9);
  font-weight: 900;
}
.nav-stack { display: grid; gap: 6px; }
.nav-stack button,
.nav-stack a {
  border: 0;
  background: transparent;
  color: #cbd5e1;
  border-radius: 8px;
  padding: 12px 13px;
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 700;
  text-align: left;
}
.nav-stack button.active,
.nav-stack button:hover,
.nav-stack a:hover {
  background: rgba(255, 255, 255, .11);
  color: #fff;
}
.nav-stack svg,
.toolbar svg,
.section-head svg { width: 18px; height: 18px; }

.main { padding: 26px; min-width: 0; }
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}
.topbar h1 { margin: 0; font-size: 30px; }
.topbar p { margin: 4px 0 0; color: var(--muted); }
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; }

.view { display: none; }
.view.active { display: block; }
.metric-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(130px, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}
.metric {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}
.metric small {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: 11px;
  font-weight: 900;
}
.metric strong { display: block; font-size: 30px; margin-top: 6px; }

.content-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 14px;
}
.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  box-shadow: 0 14px 40px rgba(15, 23, 42, .06);
}
.panel h2 {
  font-size: 18px;
  margin: 0 0 14px;
}
.span-4 { grid-column: span 4; }
.span-8 { grid-column: span 8; }
.span-12 { grid-column: span 12; }
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.status-list { display: grid; gap: 10px; }
.status-item {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
}
.badge-soft {
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 800;
}
.badge-success { background: #dcfce7; color: #166534; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-primary { background: #dbeafe; color: #1e40af; }
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.filter-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

@media (max-width: 1180px) {
  .metric-grid { grid-template-columns: repeat(3, minmax(130px, 1fr)); }
  .span-4, .span-8 { grid-column: span 12; }
}
@media (max-width: 820px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .nav-stack { grid-template-columns: repeat(2, 1fr); }
  .topbar { align-items: stretch; flex-direction: column; }
  .metric-grid, .filter-row, .form-grid { grid-template-columns: 1fr; }
}