@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=Inter:wght@400;500;600;700&display=swap');

  :root {
    --ts-bg: #0a0b0e;
    --ts-surface: #111318;
    --ts-surface2: #181c24;
    --border: #1e2330;
    --border2: #252c3d;
    --ts-text: #e2e8f0;
    --muted: #5a6480;
    --dim: #3a4060;
    --green: #00d4a0;
    --green-dim: #00d4a015;
    --red: #ff4466;
    --red-dim: #ff446615;
    --gold: #f5c842;
    --blue: #4d9fff;
    --up: #00c985;
    --down: #ff3355;
    --wick-up: #00c985;
    --wick-down: #ff3355;
    --mono: 'IBM Plex Mono', monospace;
    --sans: 'Inter', sans-serif;
  }

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

  #tradesim-container {
    background: var(--ts-bg);
    color: var(--ts-text);
    font-family: var(--sans);
    display: flex;
    flex-direction: column;
  }

  /* HEADER */
  header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
    background: var(--ts-surface);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    gap: 12px;
  }

  .logo {
    font-family: var(--mono);
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.12em;
    color: var(--ts-text);
  }
  .logo span { color: var(--green); }

  .header-stats {
    display: flex;
    gap: 20px;
    align-items: center;
  }

  .stat-pill {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
  }
  .stat-pill .label {
    font-size: 9px;
    font-family: var(--mono);
    color: var(--muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }
  .stat-pill .val {
    font-size: 14px;
    font-family: var(--mono);
    font-weight: 600;
  }
  .val.pos { color: var(--green); }
  .val.neg { color: var(--red); }
  .val.neutral { color: var(--ts-text); }

  .streak-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--ts-surface2);
    border: 1px solid var(--border2);
    border-radius: 6px;
    padding: 4px 10px;
    font-family: var(--mono);
    font-size: 12px;
  }
  .streak-fire { font-size: 16px; }

  .btn-reset {
    font-family: var(--mono);
    font-size: 11px;
    background: transparent;
    border: 1px solid var(--border2);
    color: var(--muted);
    padding: 5px 12px;
    border-radius: 4px;
    cursor: pointer;
    letter-spacing: 0.08em;
    transition: all 0.15s;
  }
  .btn-reset:hover { border-color: var(--dim); color: var(--ts-text); }

  /* MAIN LAYOUT */
  .main {
    display: flex;
    flex: 1;
    overflow: hidden;
    gap: 0;
  }

  /* CHART AREA */
  .chart-wrap {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
  }

  .chart-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 16px;
    background: var(--ts-surface);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
  }

  .ticker-label {
    font-family: var(--mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--ts-text);
    letter-spacing: 0.08em;
  }

  .price-display {
    font-family: var(--mono);
    font-size: 18px;
    font-weight: 600;
  }

  .price-change {
    font-family: var(--mono);
    font-size: 11px;
    padding: 2px 7px;
    border-radius: 3px;
  }
  .price-change.up { background: var(--green-dim); color: var(--green); }
  .price-change.dn { background: var(--red-dim); color: var(--red); }

  .candle-count {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--muted);
    margin-left: auto;
  }

  canvas#chart {
    flex: 1;
    display: block;
    cursor: crosshair;
  }

  /* SIDE PANEL */
  .side {
    width: 240px;
    background: var(--ts-surface);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    flex-shrink: 0;
  }

  .panel-section {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
  }

  .panel-title {
    font-family: var(--mono);
    font-size: 9px;
    color: var(--muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 12px;
  }

  /* ENTRY CONTROLS */
  .entry-btns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 12px;
  }

  .btn-long, .btn-short {
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.06em;
    padding: 12px 8px;
    border-radius: 6px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.12s;
    text-transform: uppercase;
  }

  .btn-long {
    background: var(--green-dim);
    border-color: var(--green);
    color: var(--green);
  }
  .btn-long:hover { background: #00d4a030; }
  .btn-long:disabled { opacity: 0.3; cursor: not-allowed; }

  .btn-short {
    background: var(--red-dim);
    border-color: var(--red);
    color: var(--red);
  }
  .btn-short:hover { background: #ff446630; }
  .btn-short:disabled { opacity: 0.3; cursor: not-allowed; }

  .input-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 10px;
  }

  .input-group {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .input-group label {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--muted);
    width: 30px;
    flex-shrink: 0;
  }

  .input-group input {
    flex: 1;
    background: var(--ts-surface2);
    border: 1px solid var(--border2);
    color: var(--ts-text);
    font-family: var(--mono);
    font-size: 12px;
    padding: 5px 8px;
    border-radius: 4px;
    outline: none;
    transition: border-color 0.15s;
  }
  .input-group input:focus { border-color: var(--blue); }

  .btn-close-trade {
    width: 100%;
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 600;
    padding: 9px;
    border-radius: 5px;
    border: 1px solid var(--gold);
    background: transparent;
    color: var(--gold);
    cursor: pointer;
    letter-spacing: 0.08em;
    transition: all 0.12s;
    text-transform: uppercase;
    display: none;
  }
  .btn-close-trade:hover { background: #f5c84215; }
  .btn-close-trade.visible { display: block; }

  /* OPEN TRADE DISPLAY */
  .open-trade {
    display: none;
    flex-direction: column;
    gap: 6px;
  }
  .open-trade.visible { display: flex; }

  .trade-dir {
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
  }
  .trade-dir.long { color: var(--green); }
  .trade-dir.short { color: var(--red); }

  .trade-row {
    display: flex;
    justify-content: space-between;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
  }
  .trade-row span:last-child { color: var(--ts-text); }

  .pnl-live {
    font-family: var(--mono);
    font-size: 20px;
    font-weight: 600;
    margin-top: 2px;
  }

  /* CONTROLS INFO */
  .hint-list {
    display: flex;
    flex-direction: column;
    gap: 7px;
  }
  .hint-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: var(--muted);
  }
  .hint-key {
    font-family: var(--mono);
    font-size: 10px;
    background: var(--ts-surface2);
    border: 1px solid var(--border2);
    padding: 2px 6px;
    border-radius: 3px;
    color: var(--ts-text);
    white-space: nowrap;
    flex-shrink: 0;
  }

  /* TRADE LOG */
  .trade-log {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 220px;
    overflow-y: auto;
  }

  .log-entry {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 10px;
    background: var(--ts-surface2);
    border-radius: 5px;
    border-left: 3px solid transparent;
    font-family: var(--mono);
    font-size: 11px;
  }
  .log-entry.win { border-color: var(--green); }
  .log-entry.loss { border-color: var(--red); }

  .log-dir { font-weight: 600; width: 14px; }
  .log-dir.l { color: var(--green); }
  .log-dir.s { color: var(--red); }
  .log-pnl { margin-left: auto; font-weight: 600; }
  .log-pnl.pos { color: var(--green); }
  .log-pnl.neg { color: var(--red); }
  .log-pts { color: var(--muted); font-size: 10px; }

  /* RESULT OVERLAY */
  .result-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--ts-surface);
    border: 1px solid var(--border2);
    border-radius: 12px;
    padding: 28px 36px;
    text-align: center;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 10;
    min-width: 220px;
  }
  .result-overlay.show { opacity: 1; }

  .result-emoji { font-size: 42px; margin-bottom: 8px; }
  .result-label {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 4px;
  }
  .result-pnl {
    font-family: var(--mono);
    font-size: 28px;
    font-weight: 700;
  }
  .result-pnl.pos { color: var(--green); }
  .result-pnl.neg { color: var(--red); }
  .result-pts {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--muted);
    margin-top: 4px;
  }
  .result-grade {
    margin-top: 10px;
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
  }

  /* SPEED CONTROL */
  .speed-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 8px;
  }
  .speed-row label {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--muted);
  }
  .speed-row input[type=range] {
    flex: 1;
    accent-color: var(--green);
    cursor: pointer;
  }
  .speed-val {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--ts-text);
    width: 24px;
  }

  /* Progress bar */
  .session-progress {
    height: 2px;
    background: var(--border);
    flex-shrink: 0;
  }
  .session-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--green), var(--blue));
    transition: width 0.3s;
  }

  .empty-log {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--dim);
    text-align: center;
    padding: 16px 0;
  }

  /* Scrollbar */
  ::-webkit-scrollbar { width: 4px; }
  ::-webkit-scrollbar-track { background: transparent; }
  ::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }