:root {
  --bg-top: #0f172a;
  --bg-bottom: #020617;
  --surface: rgba(30, 41, 59, 0.4);
  --surface-2: rgba(30, 41, 59, 0.6);
  --surface-hover: rgba(255, 255, 255, 0.05);
  --border: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.15);
  --text: #f8fafc;
  --text-dim: #94a3b8;
  --muted: #64748b;
  --accent: #38bdf8;
  --accent-dim: rgba(56,189,248,0.1);
  --green: #4ade80;
  --green-dim: rgba(74,222,128,0.1);
  --red: #f87171;
  --red-dim: rgba(248,113,113,0.1);
  --orange: #fbbf24;
  --radius: 12px;
  --radius-sm: 6px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}
* { margin:0; padding:0; box-sizing:border-box; }
body { font-family: var(--font); background: linear-gradient(135deg, var(--bg-top) 0%, var(--bg-bottom) 100%); background-attachment: fixed; color: var(--text); height: 100vh; overflow: hidden; font-size:13px; -webkit-font-smoothing:antialiased; }
.app { display:flex; height:100vh; }

/* ═══ SIDEBAR ═══ */
.nav-sidebar { width:200px; min-width:200px; background:var(--surface); border-right:1px solid var(--border); display:flex; flex-direction:column; padding:1rem 0.75rem; backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); box-shadow: 2px 0 16px rgba(0,0,0,0.2); z-index: 20; }
.nav-sidebar .logo { font-size:1.1rem; font-weight:700; color:var(--text); margin-bottom:1.25rem; letter-spacing:-0.02em; padding:0 0.35rem; text-shadow: 0 0 10px rgba(255,255,255,0.1); }
.nav-item { padding:0.4rem 0.6rem; border-radius:var(--radius-sm); cursor:pointer; font-size:0.78rem; color:var(--text-dim); margin-bottom:1px; display:flex; align-items:center; gap:0.5rem; border:1px solid transparent; transition:color 0.1s; }
.nav-item:hover { color:var(--text); background:var(--surface-hover); }
.nav-item.active { color:var(--text); background:var(--surface-hover); border-color:var(--border-light); }
.nav-item .icon { font-size:0.85rem; width:18px; text-align:center; color:var(--muted); }
.nav-item.active .icon { color:var(--text); }

.status-block { margin:0.5rem 0; padding:0.35rem 0.5rem; background:var(--bg); border-radius:var(--radius-sm); border:1px solid var(--border); }
.status-block .status-row { font-size:0.65rem; color:var(--text-dim); display:flex; align-items:center; gap:0.3rem; padding:0.1rem 0; }
.status-block .status-row span:first-child { width:4px; height:4px; border-radius:50%; background:var(--muted); flex-shrink:0; }
.status-block .status-row span.on { background:var(--green); }

.nav-divider { height:1px; background:var(--border); margin:0.35rem 0; }
.status-area { margin-top:auto; font-size:0.68rem; color:var(--muted); display:flex; align-items:center; gap:0.35rem; padding:0.4rem 0.35rem; border-top:1px solid var(--border); }
.status-live { width:5px; height:5px; border-radius:50%; background:var(--muted); }
.status-live.on { background:var(--green); }

/* ═══ MAIN ═══ */
.main { flex:1; display:flex; flex-direction:column; overflow:hidden; }
.main-header { padding:0.5rem 1rem; border-bottom:1px solid var(--border); background:var(--surface); display:flex; align-items:center; gap:0.65rem; min-height:46px; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); z-index: 10; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
.main-header h2 { font-size:0.95rem; font-weight:600; color:var(--text); text-shadow: 0 0 8px rgba(255,255,255,0.05); }
.header-spacer { flex:1; }
.search-box { background:var(--bg); border:1px solid var(--border); border-radius:var(--radius-sm); padding:0.3rem 0.5rem; font-size:0.75rem; color:var(--text); width:170px; outline:none; font-family:var(--font); }
.search-box::placeholder { color:var(--muted); }
.search-box:focus { border-color:var(--border-light); }
.dropdown { background:var(--bg); border:1px solid var(--border); border-radius:var(--radius-sm); padding:0.25rem 0.4rem; font-size:0.75rem; color:var(--text); cursor:pointer; outline:none; font-family:var(--font); }
.time-badge { font-size:0.7rem; color:var(--text-dim); background:var(--bg); padding:0.18rem 0.45rem; border-radius:var(--radius-sm); border:1px solid var(--border); font-variant-numeric:tabular-nums; font-family:var(--font); }
.demo-badge { font-size:0.65rem; font-weight:600; color:var(--muted); background:var(--bg); padding:0.12rem 0.4rem; border-radius:var(--radius-sm); border:1px solid var(--border); }
.hidden { display:none !important; }
.main-content { flex:1; overflow-y:auto; padding:0.75rem 1rem; }

/* ═══ OVERVIEW ═══ */
.overview-bar { display:grid; grid-template-columns:repeat(auto-fit, minmax(110px, 1fr)); gap:1px; margin-bottom:0.75rem; border:1px solid var(--border); border-radius:var(--radius); overflow:hidden; box-shadow: 0 4px 12px rgba(0,0,0,0.15); }
.overview-item { text-align:center; padding:0.5rem 0.4rem; background:var(--surface); backdrop-filter: blur(12px); }
.overview-item .label { font-size:0.6rem; color:var(--muted); text-transform:uppercase; letter-spacing:0.06em; }
.overview-item .value { font-size:1rem; font-weight:700; margin-top:0.08rem; font-variant-numeric:tabular-nums; color:var(--text); }
.value.up { color:var(--green); } .value.down { color:var(--red); }

/* ═══ PLAYLIST ═══ */
.playlist-item { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); margin-bottom:0.45rem; overflow:hidden; backdrop-filter: blur(12px); transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275); }
.playlist-item:hover { border-color:var(--border-light); transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,0.2); }
.playlist-item.open { border-color:var(--border-light); transform: none; box-shadow: none; }
.playlist-header { padding:0.45rem 0.65rem; cursor:pointer; display:flex; align-items:center; gap:0.55rem; user-select:none; }
.playlist-header:hover { background:var(--surface-hover); }
.playlist-header .rank { font-size:0.65rem; color:var(--muted); width:16px; text-align:center; font-weight:700; font-variant-numeric:tabular-nums; }
.playlist-header .name { flex:1; font-size:0.78rem; font-weight:500; color:var(--text); }
.playlist-header .category { font-size:0.58rem; text-transform:uppercase; letter-spacing:0.07em; background:var(--bg); padding:0.08rem 0.3rem; border-radius:2px; color:var(--text-dim); font-weight:600; border:1px solid var(--border); }
.playlist-header .metric { font-size:0.72rem; text-align:right; min-width:50px; font-variant-numeric:tabular-nums; color:var(--text-dim); }
.playlist-header .metric.label { font-size:0.58rem; color:var(--muted); text-transform:uppercase; letter-spacing:0.05em; min-width:42px; }
.playlist-header .pnl { font-weight:700; font-size:0.8rem; min-width:70px; text-align:right; font-variant-numeric:tabular-nums; }
.playlist-header .arrow { color:var(--muted); font-size:0.65rem; transition:transform 0.12s; }
.playlist-item.open .playlist-header .arrow { transform:rotate(180deg); }
.playlist-body { display:none; border-top:1px solid var(--border); background:var(--bg); }
.playlist-item.open .playlist-body { display:block; }

.signal-row { padding:0.38rem 0.65rem 0.38rem 1.8rem; border-bottom:1px solid var(--border); display:flex; align-items:center; gap:0.5rem; font-size:0.74rem; cursor:pointer; }
.signal-row:hover { background:var(--surface-hover); }
.signal-row:last-child { border-bottom:none; }
.signal-row .dir { font-weight:800; font-size:0.6rem; padding:0.06rem 0.3rem; border-radius:3px; text-transform:uppercase; }
.signal-row .dir.long { background:var(--green-dim); color:var(--green); }
.signal-row .dir.short { background:var(--red-dim); color:var(--red); }
.signal-row .ticker { font-weight:600; font-size:0.76rem; min-width:70px; color:var(--text); }
.signal-row .price { font-variant-numeric:tabular-nums; color:var(--text-dim); font-size:0.72rem; }
.signal-row .price.sl { color:var(--red); }
.signal-row .price.tp { color:var(--green); }
.signal-row .conf { display:flex; align-items:center; gap:0.18rem; min-width:42px; }
.signal-row .conf-bar { flex:1; height:2px; background:var(--border); border-radius:1px; overflow:hidden; }
.signal-row .conf-fill { height:100%; background:var(--text-dim); border-radius:1px; }
.signal-row .status-tag { font-size:0.6rem; font-weight:700; padding:0.06rem 0.35rem; border-radius:3px; min-width:46px; text-align:center; }
.signal-row .status-tag.win { background:var(--green-dim); color:var(--green); }
.signal-row .status-tag.loss { background:var(--red-dim); color:var(--red); }
.signal-row .status-tag.active { background:var(--accent-dim); color:var(--accent); }

.playlist-empty { padding:0.75rem 1.5rem; color:var(--muted); font-size:0.74rem; text-align:center; }
.empty-state { text-align:center; padding:2.5rem 1rem; color:var(--muted); }
.empty-state .icon { font-size:2rem; opacity:0.2; margin-bottom:0.3rem; }

/* ═══ TRADE VIEW ═══ */
.trade-panel { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:0.75rem; backdrop-filter: blur(12px); box-shadow: 0 4px 16px rgba(0,0,0,0.15); transition: transform 0.2s ease, border-color 0.2s ease; }
.trade-panel:hover { border-color:var(--border-light); transform: translateY(-1px); }
.trade-panel.full { grid-column:1 / -1; }
.trade-panel h3 { font-size:0.72rem; color:var(--text-dim); text-transform:uppercase; letter-spacing:0.06em; margin-bottom:0.45rem; font-weight:600; }
.trade-table { width:100%; border-collapse:collapse; font-size:0.74rem; }
.trade-table th { text-align:left; padding:0.32rem 0.35rem; color:var(--muted); border-bottom:1px solid var(--border); font-size:0.65rem; text-transform:uppercase; letter-spacing:0.05em; font-weight:600; }
.trade-table td { padding:0.28rem 0.35rem; border-bottom:1px solid rgba(31,31,36,0.6); font-variant-numeric:tabular-nums; color:var(--text-dim); }
.btn { background:rgba(255,255,255,0.05); color:var(--text); border:1px solid var(--border-light); padding:0.35rem 0.85rem; border-radius:var(--radius-sm); font-size:0.78rem; cursor:pointer; font-weight:500; font-family:var(--font); transition: all 0.2s ease; backdrop-filter: blur(4px); }
.btn:hover { border-color:var(--text-dim); background:rgba(255,255,255,0.1); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,0,0,0.2); }
.btn.danger { border-color:rgba(239,68,68,0.3); color:var(--red); }
.btn.danger:hover { background:var(--red-dim); border-color:var(--red); }
.btn.small { padding:0.18rem 0.45rem; font-size:0.68rem; }
.trade-tabs { display:flex; gap:0; margin-bottom:0.65rem; border-bottom:1px solid var(--border); }
.trade-tab { padding:0.25rem 0.6rem; font-size:0.72rem; color:var(--text-dim); cursor:pointer; border-bottom:2px solid transparent; font-weight:500; }
.trade-tab:hover { color:var(--text); }
.trade-tab.active { color:var(--text); border-bottom-color:var(--text-dim); }

/* ═══ OVERLAY ═══ */
.overlay { position:fixed; inset:0; background:rgba(2,6,23,0.7); display:flex; align-items:center; justify-content:center; z-index:100; backdrop-filter: blur(6px); }
.overlay-card { background:rgba(30,41,59,0.7); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); border:1px solid var(--border-light); border-radius:var(--radius); width:600px; max-width:90vw; max-height:80vh; overflow-y:auto; box-shadow: 0 12px 32px rgba(0,0,0,0.5); }
.overlay-header { padding:0.6rem 0.85rem; border-bottom:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; }
.overlay-header h3 { font-size:0.9rem; font-weight:600; color:var(--text); }
.overlay-close { cursor:pointer; color:var(--muted); font-size:1rem; }
.overlay-close:hover { color:var(--text); }
.overlay-body { padding:0.85rem; font-size:0.78rem; line-height:1.45; }
.overlay-body .meta-grid { display:grid; grid-template-columns:1fr 1fr; gap:0.35rem; margin-bottom:0.65rem; }
.overlay-body .meta-item { background:var(--bg); padding:0.35rem 0.45rem; border-radius:var(--radius-sm); border:1px solid var(--border); }
.overlay-body .meta-item .ml { font-size:0.6rem; color:var(--muted); text-transform:uppercase; letter-spacing:0.05em; }
.overlay-body .meta-item .mv { font-size:0.8rem; font-weight:600; color:var(--text); margin-top:1px; }
.overlay-body .lifecycle { display:flex; align-items:center; gap:0.3rem; margin:0.65rem 0; flex-wrap:wrap; }
.overlay-body .lc-step { padding:0.15rem 0.4rem; border-radius:var(--radius-sm); font-size:0.64rem; font-weight:600; }
.overlay-body .lc-step.done { background:var(--green-dim); color:var(--green); }
.overlay-body .lc-step.current { background:var(--accent-dim); color:var(--text); border:1px solid var(--border-light); }
.overlay-body .lc-step.pending { background:var(--bg); color:var(--muted); }
.overlay-body .lc-arrow { color:var(--muted); font-size:0.64rem; }

/* ═══ BACKTEST ═══ */
.bt-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(240px, 1fr)); gap:0.5rem; }
.bt-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:0.75rem; cursor:pointer; backdrop-filter: blur(12px); transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275); }
.bt-card:hover { border-color:var(--border-light); transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,0.2); }
.bt-card .bt-name { font-weight:600; font-size:0.8rem; color:var(--text); margin-bottom:0.35rem; }
.bt-card .bt-metrics { display:grid; grid-template-columns:1fr 1fr; gap:0.2rem; font-size:0.7rem; }
.bt-card .bt-metric { color:var(--text-dim); }
.bt-card .bt-metric span { color:var(--text); font-weight:600; }
.bt-run-form { display:grid; grid-template-columns:1fr 1fr; gap:0.4rem; margin-bottom:0.65rem; }
.bt-run-form input,.bt-run-form select { background:var(--bg); border:1px solid var(--border); border-radius:var(--radius-sm); padding:0.35rem; font-size:0.74rem; color:var(--text); font-family:var(--font); }
.bt-progress { height:3px; background:var(--border); border-radius:2px; overflow:hidden; margin-top:0.4rem; }
.bt-progress .fill { height:100%; background:var(--text-dim); animation:shimmer 1.5s infinite; }
@keyframes shimmer { 0%{width:0%} 50%{width:70%} 100%{width:100%} }

/* ═══ TICKER ═══ */
.ticker-wrap { width:100%; height:30px; background:var(--surface-2); border-bottom:1px solid var(--border); overflow:hidden; display:flex; align-items:center; }
.ticker { white-space:nowrap; padding-left:100%; display:inline-block; animation:ticker 30s linear infinite; font-size:0.75rem; color:var(--text); }
.ticker-item { display:inline-block; margin-right:2rem; }
.ticker-item .t-name { font-weight:600; margin-right:0.3rem; }
.ticker-item .t-price { color:var(--text-dim); }
.ticker-item.up .t-price { color:var(--green); }
.ticker-item.down .t-price { color:var(--red); }
@keyframes ticker { 0% { transform: translate3d(0, 0, 0); } 100% { transform: translate3d(-100%, 0, 0); } }

/* ═══ TOASTS ═══ */
.toast-container { position:fixed; bottom:1.5rem; right:1.5rem; z-index:1000; display:flex; flex-direction:column; gap:0.5rem; }
.toast { background:rgba(15,23,42,0.85); backdrop-filter: blur(16px); border:1px solid var(--border-light); border-radius:var(--radius); padding:0.85rem; min-width:250px; max-width:350px; box-shadow:0 8px 24px rgba(0,0,0,0.4); transform:translateX(120%); transition:transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); }
.toast.show { transform:translateX(0); }
.toast-header { font-weight:600; font-size:0.75rem; margin-bottom:0.25rem; display:flex; justify-content:space-between; align-items:center; }
.toast-body { font-size:0.7rem; color:var(--text-dim); }
.toast.info { border-left:3px solid var(--accent); }
.toast.success { border-left:3px solid var(--green); }
.toast.error { border-left:3px solid var(--red); }

/* ═══ CATEGORY GROUPING ═══ */
.category-group { margin-bottom:0.75rem; }
.category-header { font-size:0.7rem; font-weight:600; color:var(--muted); text-transform:uppercase; letter-spacing:0.06em; padding:0.3rem 0.65rem; background:var(--surface-2); border:1px solid var(--border); border-radius:var(--radius-sm); margin-bottom:0.35rem; cursor:pointer; display:flex; justify-content:space-between; align-items:center; }
.category-header:hover { background:var(--surface-hover); color:var(--text); }
.category-content { display:none; }
.category-group.open .category-content { display:block; }
.category-pnl { font-variant-numeric:tabular-nums; font-weight:700; color:var(--text); }

/* ═══ ANALYTICS ═══ */
.analytics-grid { display:grid; grid-template-columns:1fr 1fr; gap:0.75rem; }
.analytics-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:0.75rem; min-height:250px; backdrop-filter: blur(12px); box-shadow: 0 4px 16px rgba(0,0,0,0.15); transition: transform 0.2s ease, border-color 0.2s ease; }
.analytics-card:hover { border-color:var(--border-light); transform: translateY(-1px); }
.analytics-card.full { grid-column:1 / -1; }
.analytics-card h3 { font-size:0.75rem; color:var(--text-dim); text-transform:uppercase; letter-spacing:0.05em; margin-bottom:0.75rem; font-weight:600; }
.analytics-card canvas { width:100% !important; height:200px !important; }
/* ═══ TERMINAL ═══ */
.terminal-drawer {
  position: fixed; bottom: 0; left: 240px; right: 0;
  background: rgba(2,6,23,0.85); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex; flex-direction: column; transition: height 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  height: 32px; z-index: 50; font-family: 'SF Mono', ui-monospace, Menlo, Monaco, Consolas, monospace;
}
.terminal-drawer.open { height: 250px; box-shadow: 0 -10px 30px rgba(0,0,0,0.3); }
.terminal-header {
  height: 32px; display: flex; justify-content: space-between; align-items: center;
  padding: 0 1rem; background: rgba(255,255,255,0.03); cursor: pointer; user-select: none;
  font-size: 0.75rem; font-weight: 600; color: var(--text-dim);
}
.terminal-controls span { margin-left: 1rem; cursor: pointer; transition: color 0.1s; }
.terminal-controls span:hover { color: var(--text); }
.terminal-drawer.open .toggle-icon { transform: rotate(180deg); display: inline-block; }
.terminal-content {
  flex: 1; overflow-y: auto; padding: 0.5rem; font-size: 0.75rem;
  color: var(--text-dim); background: transparent;
}
.term-line { padding: 2px 0; border-bottom: 1px solid rgba(255,255,255,0.02); }
.term-line .time { color: var(--muted); margin-right: 0.5rem; }
.term-line.info { color: #a1a1aa; }
.term-line.warning { color: #fbbf24; }
.term-line.error { color: #ef4444; }

/* ═══ BADGES & METRICS ═══ */
.badge { padding: 0.15rem 0.5rem; border-radius: 4px; font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; display: inline-block; text-align: center; }
.badge.green { background: rgba(34,197,94,0.15); color: #22c55e; border: 1px solid rgba(34,197,94,0.3); }
.badge.red { background: rgba(239,68,68,0.15); color: #ef4444; border: 1px solid rgba(239,68,68,0.3); }
.badge.neutral { background: rgba(148,163,184,0.15); color: #9ca3af; border: 1px solid rgba(148,163,184,0.3); }
.badge.accent { background: rgba(56,189,248,0.15); color: #38bdf8; border: 1px solid rgba(56,189,248,0.3); }

/* ═══ MOBILE ═══ */
@media (max-width: 768px) {
  .sidebar { width: 100%; height: auto; position: static; display: flex; flex-direction: row; flex-wrap: wrap; justify-content: space-between; align-items: center; padding: 1rem; }
  .sidebar-header { margin-bottom: 0; }
  .nav { display: flex; flex-direction: row; gap: 0.5rem; overflow-x: auto; width: 100%; padding-bottom: 0.5rem; margin-top: 1rem; }
  .nav-item { padding: 0.5rem; }
  .main { margin-left: 0; padding-top: 100px; }
  .overview-bar { flex-direction: column; }
  .analytics-grid, .trade-panel.full { grid-template-columns: 1fr; }
  .terminal-drawer { left: 0; }
  .playlist-header { flex-wrap: wrap; height: auto; padding: 0.5rem 1rem; gap: 0.5rem; }
  .ticker-wrap { left: 0; top: auto; bottom: 32px; }
}