body {
  font-family: system-ui, sans-serif;
  margin: 40px;
  background: #fafafa;
  color: #111;
}

h1 {
  margin-top: 0;
}

table {
  border-collapse: collapse;
  width: 100%;
}

th,
td {
  border: 1px solid #e5e5e5;
  padding: 8px;
  text-align: right;
}

th {
  background-color: #f4f4f4;
}

td.symbol {
  text-align: left;
  font-weight: 600;
}

tr:hover {
  background-color: #f9f9f9;
}

.positive {
  color: #0a7d00;
}

.negative {
  color: #b30000;
}

.alert-cell {
  background: #fee2e2;
  color: #b91c1c;
  font-weight: 700;
}

.dashboard {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.panel {
  background: #fff;
  border: 1px solid #e1e1e1;
  border-radius: 12px;
  padding: 24px;
  flex: 1 1 420px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.04);
}

.panel h2 {
  margin-top: 0;
}

.settings {
  margin-top: 24px;
  border-top: 1px solid #eee;
  padding-top: 16px;
}

.settings h3 {
  margin-top: 0;
}

.settings-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.settings-form label {
  font-weight: 600;
  margin-bottom: 4px;
  display: inline-block;
  text-align: left;
}

.settings-form select,
.settings-form input {
  width: 100%;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 14px;
}

.settings-form button {
  padding: 10px 16px;
  border: none;
  border-radius: 6px;
  background: #2563eb;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

.settings-form button:hover {
  background: #1d4ed8;
}

.alert-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255, 0, 0, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
}

.alert-overlay.hidden {
  display: none;
}

.alert-modal {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  width: min(420px, 90%);
  text-align: center;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25);
}

.alert-list {
  text-align: left;
  margin: 12px 0;
}

.alert-modal button {
  margin-top: 12px;
  padding: 10px 16px;
  border: none;
  border-radius: 6px;
  background: #dc2626;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

body.alert-active {
  animation: flash-bg 1s linear infinite;
}

@keyframes flash-bg {
  0% {
    background-color: #fafafa;
  }
  50% {
    background-color: #ffe5e5;
  }
  100% {
    background-color: #fafafa;
  }
}

.placeholder {
  text-align: center;
  color: #666;
  padding: 24px 0;
}