/* William Trading Portal - Dark Theme */
:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-blue: #0ea5e9;
  --accent-purple: #8b5cf6;
  --accent-green: #22c55e;
  --accent-red: #ef4444;
  --accent-yellow: #f59e0b;
}

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

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: linear-gradient(135deg, var(--bg-primary) 0%, #0a0f1d 100%);
  color: var(--text-primary);
  min-height: 100vh;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--bg-card);
}

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

.logo {
  font-size: 3rem;
  filter: drop-shadow(0 0 20px var(--accent-blue));
}

h1 {
  font-size: 1.8rem;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

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

.connection-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-red);
  box-shadow: 0 0 8px var(--accent-red);
  transition: all 0.3s;
}

.status-dot.connected {
  background: var(--accent-green);
  box-shadow: 0 0 12px var(--accent-green);
}

.refresh-btn {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  border: none;
  border-radius: 12px;
  padding: 0.75rem;
  color: white;
  cursor: pointer;
  transition: all 0.2s;
}

.refresh-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
}

.refresh-btn svg {
  width: 20px;
  height: 20px;
}

/* Sections */
section {
  margin-bottom: 2rem;
}

section h2 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  color: var(--accent-blue);
}

/* Portfolio Grid */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.stat-card {
  background: var(--bg-secondary);
  border: 1px solid var(--bg-card);
  border-radius: 16px;
  padding: 1.5rem;
  transition: all 0.3s;
}

.stat-card:hover {
  border-color: var(--accent-blue);
  transform: translateY(-2px);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.stat-value {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.stat-change {
  font-size: 0.9rem;
  font-weight: 600;
}

.stat-change.positive { color: var(--accent-green); }
.stat-change.negative { color: var(--accent-red); }
.stat-change.neutral { color: var(--text-secondary); }

/* Signals */
.signals-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

.signal-card {
  background: var(--bg-secondary);
  border-radius: 16px;
  padding: 1.5rem;
  border: 1px solid var(--bg-card);
  transition: all 0.3s;
}

.signal-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.signal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.signal-market {
  font-weight: 600;
  font-size: 1.1rem;
}

.signal-badge {
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
}

.signal-badge.buy {
  background: rgba(34, 197, 94, 0.2);
  color: var(--accent-green);
  box-shadow: 0 0 12px rgba(34, 197, 94, 0.3);
}

.signal-badge.sell {
  background: rgba(239, 68, 68, 0.2);
  color: var(--accent-red);
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.3);
}

.signal-badge.hold {
  background: rgba(245, 158, 11, 0.2);
  color: var(--accent-yellow);
}

.signal-confidence {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.signal-reason {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.signal-time {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Positions Table */
.positions-table table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-secondary);
  border-radius: 16px;
  overflow: hidden;
}

.positions-table th,
.positions-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--bg-card);
}

.positions-table th {
  background: var(--bg-card);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.positions-table tr:hover {
  background: rgba(14, 165, 233, 0.05);
}

/* Empty States */
.empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--text-secondary);
}

.empty-state .hint {
  font-size: 0.85rem;
  margin-top: 0.5rem;
  opacity: 0.7;
}

/* Footer */
.footer {
  text-align: center;
  padding: 2rem 0;
  border-top: 1px solid var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }
  
  .header {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .positions-table {
    overflow-x: auto;
  }
}

/* Animations */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.loading {
  animation: pulse 1.5s ease-in-out infinite;
}

/* Chart */
.chart-container {
  background: var(--bg-secondary);
  border-radius: 16px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--bg-card);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-secondary);
  border: 1px solid var(--accent-blue);
  padding: 1rem 2rem;
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 0.9rem;
  z-index: 1000;
  opacity: 0;
  transition: all 0.3s;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}