/* ---------------------------------------------------------------------------
   Trading View Pro — base styles
   --------------------------------------------------------------------------- */

:root {
  --bg:        #131722;
  --bg-elev:   #1e222d;
  --bg-elev-2: #2a2e39;
  --border:    #363a45;
  --text:      #d1d4dc;
  --text-dim:  #787b86;
  --accent:    #2962ff;
  --up:        #26a69a;
  --up-bg:     rgba(38, 166, 154, 0.12);
  --down:      #ef5350;
  --down-bg:   rgba(239, 83, 80, 0.12);
  --shadow:    0 2px 8px rgba(0, 0, 0, 0.4);
  --radius:    4px;
  --radius-sm: 4px;
  --gap:       1px;
  --toolbar-h: 48px;
  --header-h:  48px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Trebuchet MS", Roboto, Ubuntu,
               sans-serif;
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
  letter-spacing: 0.01em;
}

body {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ---------- toolbar -------------------------------------------------------- */

.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 12px;
  height: var(--toolbar-h);
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  flex: 0 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  letter-spacing: -0.2px;
}
.brand__dot {
  width: 22px; height: 22px; border-radius: 4px;
  background: var(--accent);
  display: flex; align-items: center; justify-content: center;
}
.brand__dot::after {
  content: "";
  width: 0; height: 0;
  border-left: 6px solid white;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  margin-left: 2px;
}
.brand__name { font-size: 15px; color: var(--text); }

.toolbar__group {
  display: flex;
  align-items: center;
  gap: 10px;
}
.toolbar__label {
  color: var(--text-dim);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}
.toolbar__spacer { flex: 1 1 auto; }

/* segmented count selector */
.seg {
  display: inline-flex;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px;
  gap: 2px;
}
.seg__btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text-dim);
  font: inherit;
  font-weight: 600;
  padding: 5px 12px;
  min-width: 32px;
  border-radius: 4px;
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease;
}
.seg__btn:hover { color: var(--text); }
.seg__btn[aria-checked="true"] {
  background: var(--accent);
  color: #fff;
}

/* connection status pill */
.conn-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elev-2);
  color: var(--text-dim);
  font-size: 12px;
}
.conn-pill__dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #6c7891;
  transition: background 200ms ease;
}
.conn-pill[data-status="connecting"] .conn-pill__dot { background: #ff9800; }
.conn-pill[data-status="open"]       .conn-pill__dot { background: var(--up); }
.conn-pill[data-status="closed"]     .conn-pill__dot { background: var(--down); }

/* ---------- responsive grid ----------------------------------------------- */

.grid {
  flex: 1 1 auto;
  display: grid;
  gap: var(--gap);
  padding: var(--gap);
  min-height: 0;        /* allow children to shrink so charts can resize down */
  min-width: 0;
  background: var(--bg);
}

.grid[data-count="1"] { grid-template: 1fr / 1fr; }
.grid[data-count="2"] { grid-template: 1fr / 1fr 1fr; }
.grid[data-count="4"] { grid-template: 1fr 1fr / 1fr 1fr; }
.grid[data-count="6"] { grid-template: 1fr 1fr / 1fr 1fr 1fr; }
.grid[data-count="8"] { grid-template: 1fr 1fr / 1fr 1fr 1fr 1fr; }

/* On narrow viewports collapse high-count layouts so panes stay usable. */
@media (max-width: 900px) {
  .grid[data-count="4"],
  .grid[data-count="6"],
  .grid[data-count="8"] { grid-template-columns: 1fr 1fr; grid-template-rows: repeat(auto-fit, minmax(220px, 1fr)); }
}
@media (max-width: 560px) {
  .grid[data-count="2"],
  .grid[data-count="4"],
  .grid[data-count="6"],
  .grid[data-count="8"] { grid-template-columns: 1fr; grid-template-rows: repeat(auto-fit, minmax(220px, 1fr)); }
}

/* ---------- pane ---------------------------------------------------------- */

.pane {
  display: flex;
  flex-direction: column;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 0;
  overflow: hidden;
  min-width: 0;
  min-height: 0;
  position: relative;
}

.pane__header {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 6px 8px 8px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
  flex: 0 0 auto;
}

.pane__controls {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.pane__source,
.pane__interval,
.pane__symbol,
.pane__refresh,
.pane__indicators,
.pane__backtest {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 5px 8px;
  font: inherit;
  outline: none;
  transition: border-color 120ms ease, box-shadow 120ms ease, color 120ms ease;
}
.pane__symbol   { flex: 1 1 110px; min-width: 90px; text-transform: uppercase; }
.pane__source   { min-width: 110px; }
.pane__interval { min-width: 64px; }

.pane__source:focus,
.pane__interval:focus,
.pane__symbol:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(41, 98, 255, 0.2);
}

.pane__refresh,
.pane__indicators,
.pane__backtest {
  cursor: pointer;
  padding: 5px 9px;
  font-size: 13px;
  line-height: 1;
  font-weight: 600;
}
.pane__refresh:hover,
.pane__indicators:hover,
.pane__backtest:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- autocomplete dropdown ----------------------------------------- */

.ac-dropdown {
  position: absolute;
  z-index: 1000;
  min-width: 280px;
  max-height: 320px;
  overflow-y: auto;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  display: none;
  font-variant-numeric: tabular-nums;
}
.ac-dropdown.is-open { display: block; }

.ac-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 10px;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
}
.ac-row:last-child { border-bottom: 0; }
.ac-row:hover, .ac-row.is-selected {
  background: rgba(41, 98, 255, 0.12);
}

.ac-sym  { font-weight: 700; color: var(--text); }
.ac-name { color: var(--text-dim); font-size: 12px; flex: 1 1 auto; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ac-ex   { font-size: 10px; color: var(--text-dim); border: 1px solid var(--border); padding: 1px 5px; border-radius: 4px; }
.ac-row mark { background: rgba(41, 98, 255, 0.35); color: var(--text); border-radius: 2px; padding: 0 1px; }
.ac-empty { padding: 10px; color: var(--text-dim); text-align: center; }

/* ---------- indicator popover --------------------------------------------- */

.ind-popover {
  position: absolute;
  top: 50px; right: 8px;
  z-index: 50;
  width: 290px;
  max-height: calc(100% - 60px);
  display: none;
  flex-direction: column;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.ind-popover.is-open { display: flex; }

.ind-popover__head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 12px; border-bottom: 1px solid var(--border);
  background: var(--bg-elev-2);
}
.ind-popover__head h4 { margin: 0; font-size: 13px; font-weight: 600; }
.ind-close, .bt-close {
  background: transparent; border: 0; color: var(--text-dim); cursor: pointer;
  font-size: 18px; line-height: 1; padding: 2px 6px; border-radius: 4px;
}
.ind-close:hover, .bt-close:hover { color: var(--text); background: var(--bg); }

.ind-popover__body { overflow-y: auto; padding: 8px 0; }
.ind-group { padding: 4px 0; }
.ind-group h5 {
  margin: 0; padding: 4px 12px;
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.6px;
  color: var(--text-dim);
}
.ind-list { display: flex; flex-direction: column; }
.ind-row {
  display: grid; grid-template-columns: 1fr auto;
  align-items: center; gap: 6px;
  padding: 4px 10px;
}
.ind-row.is-on { background: rgba(41, 98, 255, 0.06); }
.ind-row__main { display: flex; align-items: center; gap: 8px; cursor: pointer; user-select: none; }
.ind-row__main input[type=checkbox] { accent-color: var(--accent); }
.ind-name { font-size: 12px; }
.ind-toggle-params {
  background: transparent; border: 1px solid transparent; color: var(--text-dim);
  cursor: pointer; padding: 2px 6px; border-radius: 4px; font-size: 13px;
}
.ind-toggle-params:hover:not(:disabled) { color: var(--accent); border-color: var(--border); }

.ind-params {
  grid-column: 1 / -1;
  display: flex; flex-wrap: wrap; gap: 6px 10px;
  padding: 6px 10px 8px 28px;
  border-bottom: 1px dashed var(--border);
}
.ind-param { display: flex; align-items: center; gap: 6px; font-size: 11px; color: var(--text-dim); }
.ind-param input[type=number] {
  width: 60px; padding: 2px 4px; font: inherit; font-size: 11px;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 4px;
}
.ind-param input[type=color] {
  width: 24px; height: 22px; padding: 0; border: 1px solid var(--border);
  border-radius: 4px; background: var(--bg);
}

/* ---------- backtest drawer ---------------------------------------------- */

.bt-drawer {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 320px;
  max-width: 95%;
  background: var(--bg-elev);
  border-left: 1px solid var(--border);
  box-shadow: -2px 0 8px rgba(0,0,0,0.4);
  transform: translateX(100%);
  transition: transform 220ms ease;
  display: flex; flex-direction: column;
  z-index: 60;
}
.bt-drawer.is-open { transform: translateX(0); }

.bt-drawer__head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 12px; border-bottom: 1px solid var(--border);
  background: var(--bg-elev-2);
}
.bt-drawer__head h3 { margin: 0; font-size: 13px; font-weight: 600; }

.bt-drawer__body {
  flex: 1 1 auto; overflow-y: auto;
  padding: 10px 12px;
  display: flex; flex-direction: column; gap: 10px;
}

.bt-row { display: flex; flex-direction: column; gap: 4px; font-size: 11px; color: var(--text-dim); }
.bt-row label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; }
.bt-row input, .bt-row select {
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 5px 8px; font: inherit; font-size: 12px; outline: none;
}
.bt-row input:focus, .bt-row select:focus {
  border-color: var(--accent); box-shadow: 0 0 0 2px rgba(41,98,255,0.15);
}
.bt-row--inline { flex-direction: row; flex-wrap: wrap; align-items: center; gap: 6px 10px; }
.bt-row--inline label { width: auto; }
.bt-row--inline input { width: 80px; }
.bt-row--checkbox { flex-direction: row; align-items: center; gap: 8px; cursor: pointer; }
.bt-row--checkbox input { accent-color: var(--accent); }

.bt-params { display: flex; flex-direction: column; gap: 6px; }
.bt-params .bt-row { flex-direction: row; align-items: center; gap: 8px; }
.bt-params .bt-row label { flex: 0 0 80px; }
.bt-params .bt-row input { flex: 1 1 auto; max-width: 120px; }

.bt-run {
  background: var(--accent); color: white;
  border: 0; border-radius: var(--radius-sm);
  padding: 8px 14px; font: inherit; font-weight: 600; cursor: pointer;
  transition: background 120ms ease;
}
.bt-run:hover { background: #1e53e5; }

.bt-results { display: flex; flex-direction: column; gap: 10px; }
.bt-stats {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4px 10px;
  background: var(--bg);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 8px 10px;
}
.bt-stat {
  display: flex; justify-content: space-between; align-items: baseline;
  font-variant-numeric: tabular-nums;
}
.bt-stat span { color: var(--text-dim); font-size: 11px; }
.bt-stat b    { color: var(--text); font-weight: 700; font-size: 12px; }
.bt-stat b.ok  { color: var(--up); }
.bt-stat b.bad { color: var(--down); }
.bt-equity {
  width: 100%; height: 80px;
  background: var(--bg);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.bt-error { color: var(--down); font-size: 12px; }

/* ticker bar */
.pane__ticker {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 4px 6px;
  border-radius: var(--radius-sm);
  font-variant-numeric: tabular-nums;
  transition: background-color 280ms ease;
  background: transparent;
}
.pane__ticker[data-direction="up"]   { background: var(--up-bg); }
.pane__ticker[data-direction="down"] { background: var(--down-bg); }

.pane__ticker-symbol {
  font-weight: 600;
  color: var(--text-dim);
  font-size: 12px;
  letter-spacing: 0.4px;
}
.pane__ticker-price {
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
  transition: color 280ms ease;
}
.pane__ticker[data-direction="up"]   .pane__ticker-price { color: var(--up); }
.pane__ticker[data-direction="down"] .pane__ticker-price { color: var(--down); }

.pane__ticker-change {
  font-size: 12px;
  color: var(--text-dim);
}

.pane__status {
  margin-left: auto;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-dim);
}
.pane__status[data-state="loading"]::before { content: "loading…"; }
.pane__status[data-state="live"]    { color: var(--up); }
.pane__status[data-state="live"]::before    { content: "● live"; }
.pane__status[data-state="error"]   { color: var(--down); }
.pane__status[data-state="error"]::before   { content: "error"; }
.pane__status[data-state="idle"]::before    { content: ""; }

/* chart fills the rest */
.pane__chart {
  flex: 1 1 auto;
  min-height: 0;
  position: relative;
}