* {
  box-sizing: border-box;
  font-family: 'Vazirmatn', sans-serif;
}

body {
  margin: 0;
  background: radial-gradient(circle at top, #0b1220, #020617);
  color: #e5edff;
}

.app {
  display: flex;
  height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 240px;
  background: linear-gradient(180deg,#020617,#020617);
  padding: 20px;
}

.logo {
  color: #7c3aed;
  font-weight: 800;
  margin-bottom: 25px;
}

.sidebar li {
  list-style: none;
  padding: 12px;
  margin-bottom: 8px;
  border-radius: 10px;
  cursor: pointer;
}

.sidebar li.active,
.sidebar li:hover {
  background: rgba(124,58,237,0.18);
  color: #c4b5fd;
}

.sidebar footer {
  font-size: 12px;
  opacity: 0.5;
  margin-top: 30px;
}

/* Main */
.main {
  flex: 1;
  padding: 25px 35px;
  overflow-y: auto;
}

/* Topbar */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  color: #c4b5fd;
}

.export {
  border: none;
  border-radius: 12px;
  padding: 10px 18px;
  background: linear-gradient(135deg,#7c3aed,#4c1d95);
  color: #020617;
  font-weight: 600;
  cursor: pointer;
}

/* KPI Cards */
.kpi {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.kpi-card {
  padding: 22px;
  border-radius: 20px;
  background: rgba(255,255,255,0.05);
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  transition: transform 0.4s;
}

.kpi-card:hover {
  transform: translateY(-8px);
}

.kpi-card h2 {
  margin: 0 0 10px;
}

.kpi-card p {
  font-size: 22px;
  font-weight: 800;
}

.kpi-card span {
  font-size: 13px;
  opacity: 0.8;
}

.green { background: linear-gradient(135deg,#22c55e,#064e3b); }
.blue { background: linear-gradient(135deg,#38bdf8,#1e3a8a); }
.orange { background: linear-gradient(135deg,#f59e0b,#7c2d12); }

/* Charts */
.charts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.chart-card {
  background: rgba(255,255,255,0.06);
  border-radius: 22px;
  padding: 24px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}