/* Dark Theme (Default) */
:root {
  --bg-primary: #1a1a1a;
  --bg-secondary: #2d2d2d;
  --bg-tertiary: #3d3d3d;
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --profit: #22c55e;
  --loss: #ef4444;
  --border: #404040;
  --shadow: rgba(0, 0, 0, 0.3);
}

/* Light Theme */
[data-theme="light"] {
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f5;
  --bg-tertiary: #e5e5e5;
  --text-primary: #1a1a1a;
  --text-secondary: #666666;
  --border: #d0d0d0;
  --shadow: rgba(0, 0, 0, 0.1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
}

/* Login Screen */
.screen {
  display: none;
}

.screen.active {
  display: block;
}

.hidden {
  display: none !important;
}

#login-screen {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: var(--bg-primary);
}

.login-box {
  background: var(--bg-secondary);
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 20px var(--shadow);
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

.login-box h1 {
  margin-bottom: 0.5rem;
}

.login-box p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.login-box input {
  width: 100%;
  padding: 12px;
  margin-bottom: 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 1rem;
}

.login-box button {
  width: 100%;
  padding: 12px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}

.login-box button:hover {
  background: var(--accent-hover);
}

.error {
  color: var(--loss);
  margin-top: 1rem;
  font-size: 0.9rem;
}

/* Dashboard */
#dashboard {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}

header h1 {
  font-size: 1.5rem;
}

.header-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

#last-update {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--loss);
}

.status-dot.connected {
  background: var(--profit);
}

/* Tabs */
.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}

.tab {
  padding: 0.75rem 1.5rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 6px 6px 0 0;
  transition: all 0.2s;
}

.tab:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.tab.active {
  background: var(--accent);
  color: white;
}

/* Tab Content */
.tab-content {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-content.active {
  display: block;
}

/* Positions */
.bot-section {
  background: var(--bg-secondary);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
}

.bot-section h2 {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.equity {
  font-size: 1rem;
  color: var(--text-secondary);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  background: var(--bg-tertiary);
  font-weight: 600;
  font-size: 0.9rem;
}

td {
  font-size: 0.9rem;
}

tr:hover {
  background: var(--bg-secondary);
}

.empty {
  text-align: center;
  color: var(--text-secondary);
  padding: 2rem !important;
}

.profit {
  color: var(--profit);
}

.loss {
  color: var(--loss);
}

/* Controls */
.controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.controls select,
.controls button {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
}

.controls button {
  background: var(--accent);
  border: none;
  color: white;
}

.controls button:hover {
  background: var(--accent-hover);
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
}

.pagination button {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
}

.pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Charts */
.chart-container {
  background: var(--bg-secondary);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
}

.chart-container h3 {
  margin-bottom: 1rem;
}

/* Settings */
.settings-group {
  background: var(--bg-secondary);
  border-radius: 8px;
  padding: 1rem;
}

.settings-group h3 {
  margin-bottom: 1rem;
}

.setting {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}

.setting:last-child {
  border-bottom: none;
}

.setting label {
  color: var(--text-secondary);
}

.setting input,
.setting select {
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  width: 100px;
}

/* Footer */
footer {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.metrics-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
}

.metric {
  background: var(--bg-secondary);
  padding: 1rem;
  border-radius: 8px;
  text-align: center;
}

.metric .label {
  display: block;
  color: var(--text-secondary);
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
}

.metric .value {
  font-size: 1.2rem;
  font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    gap: 1rem;
  }

  .tabs {
    flex-wrap: wrap;
  }

  table {
    font-size: 0.8rem;
  }

  th, td {
    padding: 0.5rem;
  }

  .controls {
    flex-direction: column;
  }
}