* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #07111f;
  color: white;
}

.app-header {
  padding: 24px 18px;
  background: linear-gradient(135deg, #064e7a, #020617);
  text-align: center;
}

.app-header h1 {
  margin: 0;
  font-size: 28px;
}

.app-header p {
  margin: 8px 0 0;
  color: #cbd5e1;
}

.dashboard {
  padding: 18px;
}

.summary-card {
  background: #111827;
  border: 1px solid #1e293b;
  border-radius: 18px;
  padding: 18px;
  margin-bottom: 14px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
}

.summary-card.main {
  background: linear-gradient(135deg, #0f766e, #0f172a);
}

.summary-card h2,
.summary-card h3 {
  margin: 0 0 12px;
}

.summary-card p {
  margin: 0;
  font-size: 22px;
  font-weight: bold;
}

.amount {
  font-size: 34px !important;
}

.profit {
  color: #38bdf8;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.menu {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.menu button {
  padding: 15px;
  border: none;
  border-radius: 14px;
  background: #2563eb;
  color: white;
  font-size: 16px;
  font-weight: bold;
}

.menu button:active {
  background: #1d4ed8;
}

input {
  width: 100%;
  padding: 14px;
  margin: 6px 0;
  border-radius: 12px;
  border: none;
  font-size: 15px;
}

.summary-card button {
  width: 100%;
  padding: 14px;
  margin-top: 8px;
  border: none;
  border-radius: 12px;
  background: #16a34a;
  color: white;
  font-weight: bold;
  font-size: 16px;
}

.stock-item {
  background: #020617;
  padding: 14px;
  border-radius: 14px;
  margin-top: 10px;
  border: 1px solid #334155;
}

.stock-item p {
  font-size: 14px;
  margin: 6px 0;
}

.plus {
  color: #ef4444;
}

.minus {
  color: #3b82f6;
}

.delete-btn {
  background: #dc2626 !important;
}