/* ============================================================
   TRADER Dashboard — Premium Dark Design System
   ============================================================ */

:root {
  --bg-primary: #05080f;
  --bg-secondary: rgba(10, 15, 25, 0.6);
  --bg-card: rgba(16, 22, 35, 0.45);
  --bg-card-hover: rgba(22, 30, 48, 0.6);
  --bg-input: rgba(10, 15, 25, 0.8);
  --border: rgba(45, 60, 95, 0.4);
  --border-hover: rgba(79, 143, 247, 0.5);
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #475569;
  
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-green: #10b981;
  --accent-red: #ef4444;
  --accent-amber: #f59e0b;
  --accent-purple: #8b5cf6;
  
  --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
  --gradient-success: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
  --gradient-danger: linear-gradient(135deg, #ef4444 0%, #f59e0b 100%);
  
  --glass: rgba(16, 22, 35, 0.45);
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
  --shadow-green-glow: 0 0 20px rgba(16, 185, 129, 0.3);
  --shadow-red-glow: 0 0 20px rgba(239, 68, 68, 0.3);
  
  --radius: 16px;
  --radius-sm: 8px;
  
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --transition: 300ms cubic-bezier(0.25, 1, 0.5, 1);
}

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

body {
  font-family: var(--font);
  background: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 40%),
    radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.1) 0%, transparent 40%);
  color: var(--text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ==================== HEADER ==================== */

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-left { display: flex; align-items: center; gap: 16px; }
.header-right { display: flex; align-items: center; gap: 16px; }

.logo {
  font-size: 22px;
  font-weight: 700;
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-icon { -webkit-text-fill-color: initial; font-size: 24px; }

.mode-badge {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  background: rgba(34, 211, 238, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(34, 211, 238, 0.3);
  animation: pulse-glow 2s infinite;
}

.mode-badge.real {
  background: rgba(248, 113, 113, 0.15);
  color: var(--accent-red);
  border-color: rgba(248, 113, 113, 0.3);
  animation: pulse-danger 1.5s infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 5px rgba(34, 211, 238, 0.1); }
  50% { box-shadow: 0 0 15px rgba(34, 211, 238, 0.2); }
}

@keyframes pulse-danger {
  0%, 100% { box-shadow: 0 0 5px rgba(248, 113, 113, 0.2); }
  50% { box-shadow: 0 0 20px rgba(248, 113, 113, 0.4); }
}

.status-indicators { display: flex; gap: 6px; }

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: var(--transition);
}

.status-dot.online { background: var(--accent-green); box-shadow: 0 0 8px rgba(52, 211, 153, 0.5); }
.status-dot.offline { background: var(--accent-red); box-shadow: 0 0 8px rgba(248, 113, 113, 0.5); }

.model-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  padding: 4px 10px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

/* ==================== BUTTONS & TICKER ==================== */

.ticker-container {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.btc-ticker {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(10, 15, 25, 0.8);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  box-shadow: inset 0 0 10px rgba(0,0,0,0.5);
}

.ticker-label {
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 600;
}

.ticker-price {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  transition: color 0.2s, text-shadow 0.2s;
}

.ticker-price.up {
  color: var(--accent-green);
  text-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
}

.ticker-price.down {
  color: var(--accent-red);
  text-shadow: 0 0 8px rgba(239, 68, 68, 0.6);
}

.btn {
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
}
.btn-primary:hover { box-shadow: var(--shadow-glow); transform: translateY(-1px); }

.btn-danger {
  background: rgba(248, 113, 113, 0.15);
  color: var(--accent-red);
  border: 1px solid rgba(248, 113, 113, 0.3);
}
.btn-danger:hover { background: rgba(248, 113, 113, 0.25); }
.btn-danger.active { background: var(--accent-red); color: #fff; }

/* ==================== NAVIGATION ==================== */

.nav {
  display: flex;
  gap: 4px;
  padding: 8px 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}

.nav-item {
  padding: 10px 16px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-item:hover { color: var(--text-primary); background: var(--bg-card); }
.nav-item.active {
  color: var(--accent-blue);
  background: rgba(79, 143, 247, 0.1);
}

/* ==================== MAIN ==================== */

.main { flex: 1; padding: 24px; }

.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 300ms ease; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; } }

/* ==================== CARDS ==================== */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition);
}

.card:hover { border-color: var(--border-hover); box-shadow: var(--shadow-md); }
.card:hover::before { opacity: 1; }

.card-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.card-value {
  font-size: 26px;
  font-weight: 700;
  font-family: var(--font-mono);
}

.card-pnl .card-value.positive { color: var(--accent-green); }
.card-pnl .card-value.negative { color: var(--accent-red); }

.progress-bar {
  margin-top: 12px;
  height: 6px;
  background: var(--bg-primary);
  border-radius: 3px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 3px;
  transition: width 500ms ease;
  width: 0%;
}

.progress-fill.warning { background: var(--gradient-danger); }

/* ==================== TABLES ==================== */

.section { margin-bottom: 32px; }

.section-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.table-container { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th {
  background: rgba(16, 22, 35, 0.8);
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 1px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}

td {
  padding: 16px;
  border-bottom: 1px solid rgba(45, 60, 95, 0.2);
  vertical-align: middle;
  font-size: 13px;
}

tr {
  transition: var(--transition);
}

tr:hover {
  background: rgba(79, 143, 247, 0.05);
}

/* Status colors for rows */
tr.row-win:hover { background: rgba(16, 185, 129, 0.08); }
tr.row-loss:hover { background: rgba(239, 68, 68, 0.08); }

.badge {
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-buy { background: rgba(52,211,153,0.15); color: var(--accent-green); }
.badge-sell { background: rgba(248,113,113,0.15); color: var(--accent-red); }
.badge-hold { background: rgba(251,191,36,0.15); color: var(--accent-amber); }
.badge-dnt { background: rgba(90,106,133,0.15); color: var(--text-muted); }

.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
  font-style: italic;
}

/* ==================== CONFIG ==================== */

.config-form { max-width: 600px; }

.config-group {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.config-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.config-group input {
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 14px;
  transition: var(--transition);
}

.config-group input:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(79,143,247,0.15);
}

.config-info {
  padding: 16px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  white-space: pre-wrap;
}

/* ==================== FOOTER ==================== */

.footer {
  display: flex;
  justify-content: space-between;
  padding: 12px 24px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-muted);
}

/* ==================== RESPONSIVE ==================== */

@media (max-width: 768px) {
  .header { flex-direction: column; gap: 12px; }
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .nav { flex-wrap: nowrap; }
}

@media (max-width: 480px) {
  .cards-grid { grid-template-columns: 1fr; }
  .main { padding: 16px; }
}