* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  background: #0f172a;
  color: #e2e8f0;
}

.app-container {
  max-width: 1200px;
  margin: auto;
  padding: 24px;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  gap: 16px;
}

.app-header h1 {
  font-size: 28px;
  font-weight: 600;
}

.subtitle {
  font-size: 14px;
  color: #94a3b8;
  margin-top: 4px;
}

.export-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.main-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.card {
  background: #1e293b;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.full {
  grid-column: 1 / -1;
}

.card h2 {
  font-size: 18px;
  margin-bottom: 16px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

label {
  font-size: 13px;
  color: #cbd5e1;
}

input,
select {
  padding: 10px;
  border-radius: 8px;
  border: none;
  background: #334155;
  color: white;
}

input::placeholder {
  color: #94a3b8;
}

.btn {
  padding: 10px 14px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-weight: 500;
}

.btn-primary {
  background: #22c55e;
  color: white;
}

.btn-secondary {
  background: #334155;
  color: white;
}

.btn-danger {
  background: #ef4444;
  color: white;
}

.btn-upgrade {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(46, 204, 113, 0.16);
  border: 1px solid rgba(46, 204, 113, 0.35);
  color: #22c55e;
  text-decoration: none;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.summary-item p {
  font-size: 12px;
  color: #94a3b8;
}

.summary-item h3 {
  font-size: 20px;
  margin-top: 4px;
}

.insight-box {
  background: #0f172a;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid #334155;
}

.insight-label {
  font-size: 12px;
  color: #94a3b8;
  margin-bottom: 4px;
}

.chart-wrap {
  height: 300px;
}

.item-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.item-card {
  background: #0f172a;
  padding: 14px;
  border-radius: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.item-info h4 {
  font-size: 15px;
  margin-bottom: 4px;
}

.item-info p {
  font-size: 12px;
  color: #94a3b8;
  margin-top: 2px;
}

.demo-note {
  margin-bottom: 16px;
  font-size: 12px;
  color: #94a3b8;
}

.empty-state {
  color: #94a3b8;
  font-size: 14px;
}

@media (max-width: 900px) {
  .main-grid {
    grid-template-columns: 1fr;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .summary-grid {
    grid-template-columns: 1fr;
  }

  .app-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .full {
    grid-column: auto;
  }
}