/* AI Trader Dashboard — Dark Theme */

:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-card: #1c2333;
    --bg-hover: #242d3d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent: #00d4aa;
    --accent-dim: #00a882;
    --profit: #3fb950;
    --loss: #f85149;
    --warning: #d29922;
    --border: #30363d;
    --sidebar-width: 220px;
}

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

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    padding: 1.5rem 0;
}

.logo {
    padding: 0 1.5rem 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo h2 {
    font-size: 1.1rem;
    color: var(--accent);
    letter-spacing: 2px;
}

.nav-links {
    list-style: none;
    padding: 1rem 0;
    flex: 1;
}

.nav-links li a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.nav-links li a:hover,
.nav-links li a.active {
    color: var(--text-primary);
    background: var(--bg-hover);
    border-left-color: var(--accent);
}

.nav-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
}

.status-dot {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.status-dot::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 0.5rem;
}

.status-dot.online::before { background: var(--profit); }
.status-dot.warning::before { background: var(--warning); }
.status-dot.offline::before { background: var(--loss); }

.alert-unread { background: rgba(248, 81, 73, 0.05); }
.alert-unread td:first-child { border-left: 3px solid var(--loss); }

/* Main Content */
.content {
    margin-left: var(--sidebar-width);
    padding: 2rem;
    flex: 1;
    max-width: 1400px;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.live-time {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.25rem;
}

.card-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.card-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.card-change {
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

/* Chart */
.chart-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.chart-container h3 {
    margin-bottom: 1rem;
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Tables */
.table-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    overflow-x: auto;
}

.table-container h3 {
    margin-bottom: 1rem;
    font-size: 1rem;
    color: var(--text-secondary);
}

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

th {
    text-align: left;
    padding: 0.75rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
}

td {
    padding: 0.75rem;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border);
}

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

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

/* Colors */
.profit { color: var(--profit); }
.loss { color: var(--loss); }

/* Badge */
.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge.active, .badge.open { background: rgba(0, 212, 170, 0.15); color: var(--accent); }
.badge.inactive, .badge.closed { background: rgba(139, 148, 158, 0.15); color: var(--text-secondary); }
.badge.profit { background: rgba(63, 185, 80, 0.15); }
.badge.loss { background: rgba(248, 81, 73, 0.15); }

/* Strategies Grid */
.strategies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.strategy-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    transition: border-color 0.2s;
}

.strategy-card:hover {
    border-color: var(--accent-dim);
}

.strategy-card.inactive {
    opacity: 0.6;
}

.strategy-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.strategy-header h3 {
    font-size: 1.1rem;
}

.strategy-meta {
    display: flex;
    gap: 1rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.strategy-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.stat-value {
    font-size: 1rem;
    font-weight: 600;
}

.strategy-params {
    border-top: 1px solid var(--border);
    padding-top: 1rem;
}

.strategy-params h4 {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.strategy-params pre {
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: var(--bg-primary);
    padding: 0.75rem;
    border-radius: 4px;
    overflow-x: auto;
}

/* Backtest Form */
.backtest-form {
    margin-bottom: 2rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

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

.form-group select,
.form-group input {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.6rem 0.75rem;
    border-radius: 6px;
    font-size: 0.9rem;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    padding: 0.75rem 2rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-primary:hover { background: var(--accent-dim); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.bt-status {
    margin-top: 1rem;
    font-size: 0.9rem;
}

.bt-status.running { color: var(--warning); }
.bt-status.complete { color: var(--profit); }
.bt-status.error { color: var(--loss); }

/* Filters */
.filters {
    display: flex;
    gap: 0.75rem;
}

.filters select {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: 0.85rem;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin: 1rem 0;
}

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

.pagination button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.loading, .error {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
}

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

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        flex-direction: row;
        padding: 0;
    }
    .logo { border-bottom: none; padding: 1rem; }
    .nav-links { display: flex; padding: 0; }
    .nav-links li a { padding: 1rem; border-left: none; border-bottom: 3px solid transparent; }
    .nav-footer { display: none; }
    .content { margin-left: 0; padding: 1rem; }
    .cards-grid { grid-template-columns: repeat(2, 1fr); }
}