:root {
    --bg-main: #0d1117;
    --bg-card: #161b22;
    --bg-element: #21262d;
    --border-color: #30363d;
    
    --text-main: #f0f6fc;
    --text-secondary: #8b949e;
    --text-muted: #484f58;
    
    --accent-blue: #58a6ff;
    --accent-green: #3fb950;
    --accent-red: #f85149;
    --accent-yellow: #d29922;
    
    --card-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 800;
    font-size: 1.1rem;
}

.header-nav {
    display: flex;
    gap: 1rem;
}

.nav-item {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    transition: var(--transition);
}

.nav-item.active {
    background-color: var(--bg-element);
    color: var(--text-main);
}

.status-badge.online {
    background-color: rgba(63, 185, 80, 0.1);
    color: var(--accent-green);
}

.status-badge.offline {
    background-color: rgba(248, 81, 73, 0.1);
    color: var(--accent-red);
}

.status-badge.offline .status-dot {
    background-color: var(--accent-red);
    box-shadow: 0 0 8px var(--accent-red);
}

.status-dot {
    width: 6px;
    height: 6px;
    background-color: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-green);
}

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

.moscow-time {
    font-family: monospace;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.icon-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.4rem;
    border-radius: 6px;
    transition: var(--transition);
}

.icon-btn:hover {
    background-color: var(--bg-element);
    color: var(--text-main);
}

/* Alert Banner */
.alert-banner {
    background-color: rgba(248, 81, 73, 0.1);
    border-bottom: 1px solid var(--accent-red);
    color: var(--accent-red);
    padding: 0.5rem;
    text-align: center;
    font-size: 0.85rem;
    font-weight: 600;
}

.hidden { display: none; }

/* Dashboard Container */
.dashboard-container {
    padding: 1.5rem;
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Status Cards */
.status-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
}

.status-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: 10px;
}

.card-label {
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.card-value {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.card-subvalue {
    font-size: 0.8rem;
    font-weight: 500;
}

/* Layout Grid */
.layout-grid {
    display: grid;
    grid-template-columns: 8fr 4fr;
    gap: 1.5rem;
}

.column-left, .column-right {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Content Box */
.content-box {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
}

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

.box-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
}

/* Tables */
.table-responsive { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
th { text-align: left; padding: 0.75rem 1rem; color: var(--text-muted); font-weight: 600; text-transform: uppercase; border-bottom: 1px solid var(--border-color); }
td { padding: 0.75rem 1rem; border-bottom: 1px solid var(--border-color); }
tr:hover td { background-color: rgba(255, 255, 255, 0.02); }

/* Signals */
.signals-list { max-height: 300px; overflow-y: auto; }
.signal-item {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.signal-main { display: flex; align-items: center; gap: 0.75rem; }
.signal-ticker { font-weight: 700; }
.signal-badge {
    font-size: 0.7rem;
    font-weight: 800;
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
}
.badge-long { background-color: rgba(63, 185, 80, 0.1); color: var(--accent-green); }
.badge-short { background-color: rgba(248, 81, 73, 0.1); color: var(--accent-red); }

.signal-meta { text-align: right; }
.signal-prob { font-weight: 600; font-size: 0.85rem; }
.signal-time { font-size: 0.75rem; color: var(--text-muted); }

/* Risk Box */
.risk-content { padding: 1rem; display: flex; flex-direction: column; gap: 1rem; }
.risk-item { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; }
.risk-label { font-size: 0.85rem; color: var(--text-secondary); }
.risk-value { font-weight: 700; font-size: 0.9rem; }

.progress-container {
    width: 100%;
    height: 6px;
    background-color: var(--bg-element);
    border-radius: 3px;
    margin: 0.5rem 0;
    overflow: hidden;
}
.progress-bar { height: 100%; background-color: var(--accent-blue); transition: width 0.3s ease; }

.status-off { color: var(--text-muted); }
.status-on { color: var(--accent-red); font-weight: 800; }

/* Reports Box */
.tab-controls {
    display: flex;
    gap: 0.5rem;
}

.tab-btn {
    background: var(--bg-element);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.7rem;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

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

.reports-list {
    max-height: 400px;
    overflow-y: auto;
    padding: 0.5rem;
}

.report-period-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 0.5rem;
    overflow: hidden;
}

.report-period-header {
    padding: 0.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.03);
    cursor: pointer;
}

.period-date {
    font-size: 0.8rem;
    font-weight: 700;
}

.period-total {
    font-size: 0.85rem;
    font-weight: 800;
}

.report-period-details {
    padding: 0.5rem 0.75rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.detail-ticker {
    font-weight: 600;
    color: var(--text-main);
    width: 50px;
}

.detail-side {
    width: 40px;
    font-weight: 700;
}

.detail-pnl {
    font-weight: 700;
    text-align: right;
}

/* Chart */
.chart-wrapper { padding: 1rem; height: 350px; }

/* Utils */
.text-success { color: var(--accent-green); }
.text-danger { color: var(--accent-red); }

/* Responsive */
@media (max-width: 1200px) {
    .status-grid { grid-template-columns: repeat(3, 1fr); }
    .layout-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .status-grid { grid-template-columns: repeat(2, 1fr); }
    .header-nav { display: none; }
}