*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#0f1115;color:#f4f5f7}
main{max-width:1200px;margin:auto;padding:18px}

/* ============ HEADER ============ */
header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:18px;gap:12px}
h1{font-size:26px;font-weight:700;margin:0}
small{font-size:13px;color:#6b7280}
.status-bar{display:flex;align-items:center;gap:8px;margin-top:6px;flex-wrap:wrap}
.status-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}
.status-dot.active{background:#53d88b;box-shadow:0 0 8px rgba(83,216,139,0.6)}
.status-dot.idle{background:#f5b942;box-shadow:0 0 8px rgba(245,185,66,0.4)}
.status-dot.error{background:#ff7070;box-shadow:0 0 8px rgba(255,112,112,0.6)}
.updated-text{font-size:12px;color:#6b7280}
.price-block{text-align:right;background:#181b21;border:1px solid #292e37;border-radius:16px;padding:12px 20px;transition:border-color 0.3s;min-width:160px}
.price-block.up{border-color:#53d88b}
.price-block.down{border-color:#ff7070}
.price-label{font-size:12px;color:#6b7280;display:block}
.price-value{font-size:28px;font-weight:700}
.price-change{font-size:14px;font-weight:600}
.price-change.up{color:#53d88b}
.price-change.down{color:#ff7070}

/* ============ CONTROLS ============ */
.controls{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.btn{border:1px solid #343a46;padding:10px 14px;border-radius:12px;font-weight:600;font-size:13px;cursor:pointer;transition:all 0.15s}
.btn:hover{opacity:0.85}
.btn-green{background:#065f4620;border-color:#065f46;color:#53d88b}
.btn-red{background:#7f1d1d20;border-color:#7f1d1d;color:#ff7070}
.btn-blue{background:#1e3a5f20;border-color:#1e3a5f;color:#4da3ff}
.btn-gray{background:#20242c;color:#d1d5db}

/* ============ CARDS GRID ============ */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:14px}
.card{background:#181b21;border:1px solid #292e37;border-radius:16px;padding:14px}
.card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.card h3{margin:0;font-size:14px;color:#9aa1ad}
.mini-score{font-size:12px;font-weight:700;padding:2px 8px;border-radius:20px;background:#20242c}
.mini-score.long{color:#53d88b;background:#065f4620}
.mini-score.short{color:#ff7070;background:#7f1d1d20}
.score-big{font-size:32px;font-weight:700;margin-bottom:8px;color:#f4f5f7}
.score-big small{font-size:14px;color:#6b7280}
.card-rows .row{display:flex;justify-content:space-between;padding:4px 0;font-size:13px;border-bottom:1px solid #1f242c}
.card-rows .row:last-child{border:none}
.card-rows .row span{color:#6b7280}
.card-rows .row b{color:#e5e7eb}

/* ============ PANELS ============ */
.panel{background:#181b21;border:1px solid #292e37;border-radius:16px;padding:18px;margin-bottom:14px}
.panel h2{font-size:16px;font-weight:600;margin:0 0 12px;color:#d1d5db}
.split-panels{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}

/* ============ CHART ============ */
.chart-panel{padding:18px}
.chart-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:12px}
.chart-header h2{font-size:16px;font-weight:600;margin:0;color:#d1d5db}
.chart-toggles{display:flex;gap:6px;flex-wrap:wrap}
.toggle-label{font-size:11px;font-weight:600;padding:4px 10px;border-radius:20px;background:#20242c;color:#6b7280;cursor:pointer;border:1px solid #292e37;transition:all 0.15s;user-select:none}
.toggle-label.active{background:#1e3a5f40;border-color:#4da3ff;color:#4da3ff}
.chart-container{height:420px;width:100%;border-radius:12px;overflow:hidden}

/* ============ SIGNAL DETAIL ============ */
.signal{font-size:24px;font-weight:800;margin-bottom:10px}
.signal.long{color:#53d88b}
.signal.short{color:#ff7070}
.signal.none{color:#6b7280}
.no-signal-hint{color:#6b7280;font-size:14px;font-style:italic;margin-top:10px}
.signal-detail .row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid #1f242c;font-size:14px}
.signal-detail .row:last-child{border:none}
.signal-detail .row span{color:#6b7280}
.signal-detail .row b{font-weight:600}
.signal-detail .row .stop{color:#ff7070}
.signal-detail .row .tp{color:#53d88b}
.reasons-box{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.reason{display:inline-block;background:#1f242c;border:1px solid #292e37;border-radius:20px;padding:5px 10px;font-size:12px;color:#9aa1ad}

/* ============ STATS ============ */
.stats{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.stat{background:#20242c;border:1px solid #292e37;border-radius:12px;padding:10px 14px;flex:1;min-width:90px;text-align:center}
.stat-label{display:block;font-size:11px;color:#6b7280;margin-bottom:4px;text-transform:uppercase;letter-spacing:0.5px}
.stat b{font-size:16px}
.stat-on{border-color:#065f46}
.stat-off{border-color:#7f1d1d}
.stat-on b{color:#53d88b}
.stat-off b{color:#ff7070}
.long{color:#53d88b}
.short{color:#ff7070}

/* ============ HISTORY ============ */
.history-title{font-size:14px;font-weight:600;color:#9aa1ad;margin-bottom:8px}
.table{border:1px solid #1f242c;border-radius:12px;overflow:hidden}
.trade{display:grid;grid-template-columns:70px 80px 1fr 80px;gap:8px;padding:10px 14px;border-bottom:1px solid #1f242c;font-size:13px;align-items:center}
.trade:last-child{border:none}
.trade:hover{background:#1f242c}
.tag{font-size:11px;padding:2px 8px;border-radius:20px;font-weight:600}
.tag-open{background:#065f4620;color:#53d88b}
.tag-closed{background:#1f242c;color:#6b7280}
.empty{color:#6b7280;font-size:14px;text-align:center;padding:20px}

/* ============ FOOTER ============ */
.foot{text-align:center;font-size:12px;color:#6b7280;margin-top:18px;padding:8px}

/* ============ RESPONSIVE ============ */
@media(max-width:900px){.split-panels{grid-template-columns:1fr}}
@media(max-width:700px){
  .grid{grid-template-columns:repeat(2,1fr)}
  header{flex-direction:column}
  .price-block{width:100%;text-align:left}
  .chart-container{height:320px}
}
@media(max-width:520px){
  .grid{grid-template-columns:1fr}
  .controls button{flex:1 1 45%}
  .trade{grid-template-columns:60px 70px 1fr;font-size:12px}
  .trade>:last-child{grid-column:3}
  .chart-container{height:280px}
}