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

:root {
  --bg: #0a0a0d;
  --panel: #14141a;
  --panel-header: #1a1a22;
  --border: #262631;
  --border-light: #34343f;
  --text: #d8d8e0;
  --text-dim: #7c7c8c;
  --green: #17b881;
  --red: #f0475c;
  --pink: #ff52f1;
  --accent: #17b881;
  --yellow: #d4b83c;
  --shadow: 0 8px 24px rgba(0,0,0,0.45);
}

html, body { height: 100%; }
body {
  background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 13px; overflow: hidden;
}

/* ---- Topbar ---- */
#topbar {
  display: flex; align-items: center; gap: 10px; padding: 0 12px; height: 42px;
  background: linear-gradient(180deg, #17171f, #121218);
  border-bottom: 1px solid var(--border);
  position: relative; z-index: 500;
}
.brand { font-weight: 700; font-size: 14px; margin-right: 8px; }
.brand .accent { color: var(--accent); }

.topbar-group { position: relative; }
.topbar-btn {
  background: #1c1c26; border: 1px solid var(--border); color: var(--text);
  padding: 6px 10px; border-radius: 4px; cursor: pointer; font-size: 12px;
  display: flex; align-items: center; gap: 4px;
}
.topbar-btn:hover { border-color: var(--accent); }
.topbar-btn.icon-btn { padding: 6px 9px; font-size: 14px; }
.caret { font-size: 9px; opacity: 0.7; }

#tfGroup { display: flex; gap: 2px; background: #1c1c26; border: 1px solid var(--border); border-radius: 4px; padding: 2px; }
.tf-btn { background: transparent; border: none; color: var(--text-dim); padding: 5px 9px; border-radius: 3px; cursor: pointer; font-size: 12px; }
.tf-btn:hover { color: var(--text); }
.tf-btn.active { background: var(--accent); color: #06120c; font-weight: 700; }

#lastPriceWrap { margin-left: auto; font-weight: 700; color: var(--accent); font-size: 14px; }
#connStatus { font-size: 11px; padding: 3px 10px; border-radius: 4px; }
#connStatus.connected { background: rgba(23,184,129,0.15); color: var(--green); }
#connStatus.disconnected { background: rgba(240,71,92,0.15); color: var(--red); }

/* ---- Dropdown panels ---- */
.dropdown-panel {
  display: none; position: absolute; top: calc(100% + 6px); left: 0;
  min-width: 220px; max-width: 300px; background: var(--panel);
  border: 1px solid var(--border); border-radius: 8px; box-shadow: var(--shadow);
  padding: 10px; z-index: 600;
}
.dropdown-panel.wide { min-width: 280px; }
.dropdown-panel.open { display: block; }
.dropdown-search {
  width: 100%; background: #0e0e12; border: 1px solid var(--border); color: var(--text);
  padding: 7px 8px; border-radius: 4px; font-size: 12px; margin-bottom: 8px;
}
.dropdown-footer {
  margin-top: 8px; padding: 8px; text-align: center; color: var(--accent);
  border-top: 1px solid var(--border); cursor: pointer; font-size: 12px; border-radius: 4px;
}
.dropdown-footer:hover { background: #1c1c26; }
.symbol-item { padding: 7px 8px; border-radius: 4px; cursor: pointer; font-size: 12px; }
.symbol-item:hover { background: #1f1f29; }
.symbol-item.selected { color: var(--accent); font-weight: 600; }

/* ---- Main area: left toolbar + desktop ---- */
#mainArea { display: flex; height: calc(100vh - 42px); }

#leftToolbar {
  width: 42px; flex-shrink: 0; background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; align-items: center; padding: 8px 0; gap: 4px;
}
.tool-btn {
  width: 30px; height: 30px; background: transparent; border: none; color: var(--text-dim);
  border-radius: 5px; cursor: pointer; font-size: 14px;
}
.tool-btn:hover { background: #1f1f29; color: var(--text); }
.tool-btn.active { background: var(--accent); color: #06120c; }
.tool-btn.placeholder { opacity: 0.4; }
.tool-sep { width: 22px; height: 1px; background: var(--border); margin: 4px 0; }

#desktop { position: relative; flex: 1; overflow: hidden; background: radial-gradient(circle at 50% 0%, #121218 0%, var(--bg) 60%); }

/* ---- Windows ---- */
.hc-window {
  position: absolute; background: var(--panel); border: 1px solid var(--border);
  border-radius: 8px; box-shadow: var(--shadow); display: flex; flex-direction: column;
  min-width: 220px; min-height: 160px; overflow: hidden;
}
#win-chart {
  border-radius: 0; border: none; background: transparent; box-shadow: none;
  position: absolute; inset: 0; z-index: 1;
}
.hc-window-header {
  display: flex; align-items: center; justify-content: space-between; padding: 8px 12px;
  background: var(--panel-header); border-bottom: 1px solid var(--border);
  cursor: grab; user-select: none; flex-shrink: 0;
}
.hc-window-header:active { cursor: grabbing; }
.hc-title { font-weight: 600; font-size: 12px; }
.hc-drag-hint { color: var(--text-dim); font-size: 13px; letter-spacing: 1px; }
.hc-window-body { flex: 1; overflow-y: auto; padding: 12px; min-height: 0; }
.hc-window-body.no-pad { padding: 0; }
.hc-resize-handle {
  position: absolute; right: 0; bottom: 0; width: 16px; height: 16px; cursor: nwse-resize;
  background: linear-gradient(135deg, transparent 50%, var(--border-light) 50%);
}
.hc-window.focused { border-color: var(--accent); box-shadow: 0 0 0 1px rgba(23,184,129,0.3), var(--shadow); }

/* ---- Chart ---- */
#chartOuter { position: relative; width: 100%; height: 100%; }
#chartContainer { width: 100%; height: 100%; }
#ohlcLegend {
  position: absolute; top: 8px; left: 8px; z-index: 50;
  font-size: 12px; color: var(--text-dim); font-family: monospace;
  background: rgba(10,10,13,0.6); padding: 4px 8px; border-radius: 4px;
  display: flex; gap: 10px; pointer-events: none;
}
#ohlcLegend span.up { color: var(--green); }
#ohlcLegend span.down { color: var(--red); }

/* ---- Tabs / fields / buttons (shared with order panel etc.) ---- */
.tabs { display: flex; gap: 4px; margin-bottom: 10px; }
.tab { flex: 1; background: #1f1f29; border: 1px solid var(--border); color: var(--text-dim); padding: 6px; border-radius: 4px; cursor: pointer; font-size: 12px; }
.tab.active { background: var(--accent); color: #06120c; border-color: var(--accent); font-weight: 600; }

.field { display: flex; flex-direction: column; gap: 3px; margin-bottom: 8px; }
.field span { font-size: 11px; color: var(--text-dim); }
.field input { background: #0e0e12; border: 1px solid var(--border); color: var(--text); padding: 7px 8px; border-radius: 4px; font-size: 13px; }
.field input:focus { outline: none; border-color: var(--accent); }

.quick-size { display: flex; gap: 6px; margin-bottom: 10px; }
.quick-size button { flex: 1; background: #1f1f29; border: 1px solid var(--border); color: var(--text-dim); padding: 5px; border-radius: 4px; cursor: pointer; font-size: 11px; }
.quick-size button:hover { border-color: var(--accent); color: var(--text); }

.tp-sl { display: flex; gap: 8px; }
.tp-sl .field { flex: 1; }

.order-buttons { display: flex; gap: 8px; margin-top: 8px; }
.order-buttons button { flex: 1; padding: 10px; border-radius: 4px; border: none; font-weight: 700; cursor: pointer; font-size: 13px; }
.buy { background: var(--green); color: #06120c; }
.sell { background: var(--red); color: #1a0508; }
.order-buttons button:hover { filter: brightness(1.1); }

#orderStatus { margin-top: 8px; font-size: 11px; color: var(--text-dim); min-height: 14px; }
#orderStatus.error { color: var(--red); }
#orderStatus.ok { color: var(--green); }

.kv { display: flex; justify-content: space-between; padding: 5px 0; font-size: 12px; border-bottom: 1px solid #1c1c24; }
.kv:last-of-type { border-bottom: none; }
.kv span:first-child { color: var(--text-dim); }
.error-msg { color: var(--red); font-size: 11px; margin-top: 6px; }

.empty { color: var(--text-dim); font-size: 12px; padding: 8px 0; }
.position-row, .order-row { padding: 8px; background: #0e0e12; border-radius: 4px; margin-bottom: 6px; font-size: 12px; }
.position-row .pos-header, .order-row .order-header { display: flex; justify-content: space-between; font-weight: 600; margin-bottom: 4px; }
.long { color: var(--green); }
.short { color: var(--pink); }

.ind-section-title { font-weight: 600; color: var(--text-dim); text-transform: uppercase; font-size: 10px; letter-spacing: 0.5px; margin: 10px 0 6px; }
.ind-row { display: flex; align-items: center; justify-content: space-between; padding: 5px 0; font-size: 12px; }
.ind-row label { display: flex; align-items: center; gap: 6px; }
.ind-param { width: 56px; background: #0e0e12; border: 1px solid var(--border); color: var(--text); border-radius: 4px; padding: 3px 6px; font-size: 11px; }
.ind-hint { font-size: 11px; color: var(--text-dim); line-height: 1.5; margin-top: 6px; }
.ind-hint code { background: #0e0e12; padding: 1px 4px; border-radius: 3px; }