/* ==========================================================================
   Stock Signal Dashboard - dark "trading desk" theme
   All colors are CSS variables so the palette stays consistent.
   ========================================================================== */
:root {
  /* Surfaces */
  --bg: #0b0e14;
  --bg-elev: #10151f;
  --panel: #151c28;
  --panel-2: #1a2333;
  --border: #232d40;
  --border-soft: #1b2431;

  /* Text */
  --text: #e7ebf3;
  --muted: #8b97ab;
  --muted-2: #5e6a7e;

  /* Brand / accent */
  --accent: #3b82f6;
  --accent-2: #60a5fa;

  /* Signals: green buy, red sell, yellow hold */
  --buy: #16c784;
  --buy-bg: rgba(22, 199, 132, 0.14);
  --sell: #ea3943;
  --sell-bg: rgba(234, 57, 67, 0.14);
  --hold: #f5a623;
  --hold-bg: rgba(245, 166, 35, 0.14);
  --na: #6b7686;
  --na-bg: rgba(107, 118, 134, 0.14);

  /* Effects */
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.5);
  --mono: "SF Mono", "JetBrains Mono", "Consolas", ui-monospace, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--sans);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(59, 130, 246, 0.08), transparent 60%),
    var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0; font-weight: 650; letter-spacing: -0.01em; }
.muted { color: var(--muted); font-weight: 400; }

/* ------------------------------------------------------------------ header */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.5rem;
  background: rgba(16, 21, 31, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 0.65rem; }
.brand h1 { font-size: 1.15rem; }
.logo-dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--buy);
  box-shadow: 0 0 0 4px var(--buy-bg), 0 0 12px var(--buy);
}
.topbar-actions { display: flex; align-items: center; gap: 1rem; }
.last-updated { color: var(--muted); font-size: 0.82rem; }
.last-updated time { color: var(--text); font-family: var(--mono); }

/* buttons */
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.9rem;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
}
.btn:hover { background: #24304a; border-color: #33415c; }
.btn:active { transform: translateY(1px); }
.btn.ghost { background: transparent; border-color: transparent; font-size: 1.1rem; padding: 0.25rem 0.5rem; }
.btn.ghost:hover { background: var(--panel-2); }
.btn-icon { font-size: 1rem; line-height: 1; }

/* -------------------------------------------------------------------- tabs */
.tabs {
  display: flex;
  gap: 0.25rem;
  padding: 0.75rem 1.5rem 0;
  overflow-x: auto;
  border-bottom: 1px solid var(--border-soft);
}
.tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  padding: 0.55rem 0.85rem;
  font-size: 0.9rem;
  text-transform: capitalize;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--text); border-bottom-color: var(--accent); }

/* -------------------------------------------------------------------- main */
main { max-width: 1180px; margin: 0 auto; padding: 1.5rem; }
.status { color: var(--muted); font-size: 0.85rem; min-height: 1.2rem; }
.err { color: var(--sell); font-size: 0.85rem; }

/* toolbar + signal filters */
.toolbar { display: flex; align-items: center; gap: 1rem; margin-bottom: 0.75rem; }
.filters { display: inline-flex; gap: 2px; padding: 3px; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-sm); }
.filter-btn {
  background: none; border: none; color: var(--muted);
  padding: 0.4rem 0.9rem; border-radius: 6px;
  font-size: 0.82rem; cursor: pointer; transition: background 0.15s, color 0.15s;
}
.filter-btn:hover { color: var(--text); }
.filter-btn.active { background: var(--panel-2); color: var(--text); }
.filter-btn.active[data-filter="BUY"] { background: var(--buy-bg); color: var(--buy); }
.filter-btn.active[data-filter="HOLD"] { background: var(--hold-bg); color: var(--hold); }
.filter-btn.active[data-filter="SELL"] { background: var(--sell-bg); color: var(--sell); }

/* Plotly chart containers - height is set by Plotly's layout, not fixed here,
   so the container wraps the plot exactly and leaves no empty space. */
.plot { width: 100%; }
.equity-plot { margin-top: 0.8rem; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 0.6rem; }
.panel-head h3 { margin-bottom: 0; }

/* --------------------------------------------------------------- card grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1rem;
  margin-top: 0.5rem;
}
.card {
  position: relative;
  background: linear-gradient(180deg, var(--panel), var(--bg-elev));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  cursor: pointer;
  transition: transform 0.12s, border-color 0.15s, box-shadow 0.15s;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--sig, var(--na));
}
.card:hover { transform: translateY(-3px); border-color: #34415d; box-shadow: var(--shadow-hover); }
.card.selected { border-color: var(--accent); }

.card-top { display: flex; align-items: baseline; justify-content: space-between; }
.card-ticker { font-size: 1.15rem; font-weight: 700; letter-spacing: 0.01em; }
.card-sector { font-size: 0.72rem; color: var(--muted); text-transform: capitalize; }
.card-mid { display: flex; align-items: center; justify-content: space-between; margin: 0.9rem 0 0.6rem; }
.card-score { font-family: var(--mono); font-size: 1.7rem; font-weight: 700; }
.card-price { text-align: right; }
.card-price .lbl { display: block; font-size: 0.68rem; color: var(--muted); }
.card-price .val { font-family: var(--mono); font-size: 0.95rem; }

/* confidence meter */
.meter { height: 5px; background: var(--panel-2); border-radius: 99px; overflow: hidden; }
.meter > span { display: block; height: 100%; background: var(--sig, var(--accent)); border-radius: 99px; }
.card-conf { font-size: 0.7rem; color: var(--muted); margin-top: 0.35rem; }

/* ----------------------------------------------------------------- badges */
.badge {
  display: inline-flex; align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 99px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--na); background: var(--na-bg);
}
.badge-buy { color: var(--buy); background: var(--buy-bg); }
.badge-sell { color: var(--sell); background: var(--sell-bg); }
.badge-hold { color: var(--hold); background: var(--hold-bg); }
.badge-na { color: var(--na); background: var(--na-bg); }

/* score text coloring */
.pos { color: var(--buy); }
.neg { color: var(--sell); }
.flat { color: var(--muted); }

/* ------------------------------------------------------------------ detail */
.detail {
  margin-top: 1.75rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.detail-head {
  display: flex; align-items: center; gap: 1rem;
  padding: 1.1rem 1.3rem;
  border-bottom: 1px solid var(--border-soft);
  background: linear-gradient(180deg, var(--panel-2), transparent);
}
.detail-id h2 { font-size: 1.5rem; font-family: var(--mono); }
.detail-signal { display: flex; align-items: center; gap: 0.7rem; margin-left: auto; }
.detail-score { font-family: var(--mono); font-size: 1.25rem; font-weight: 700; }

/* timeframe switcher (segmented control) */
.timeframe {
  display: inline-flex;
  gap: 2px;
  margin: 1rem 1.3rem 0;
  padding: 3px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.tf-btn {
  background: none; border: none; color: var(--muted);
  padding: 0.35rem 0.8rem; border-radius: 6px;
  font-size: 0.8rem; font-family: var(--mono); cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.tf-btn:hover { color: var(--text); }
.tf-btn.active { background: var(--accent); color: #fff; }

.detail-grid {
  display: grid;
  /* Even columns now that the chart spans the full width on its own row. */
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 1.2rem 1.3rem 1.4rem;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: 1rem 1.1rem;
}
.panel h3 { font-size: 0.95rem; margin-bottom: 0.6rem; }
.panel-hint { font-size: 0.75rem; color: var(--muted); margin: -0.3rem 0 0.6rem; }
/* FIX: chart spans the full width on its own row instead of spanning two rows
   to match the right column - that stretch was the source of the big empty
   gap under the chart. */
.chart-panel { grid-column: 1 / -1; }
.chart-wrap { position: relative; width: 100%; }
.backtest-panel { grid-column: 1 / -1; }

/* key/value + breakdown tables */
table.kv { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
table.kv th { text-align: left; color: var(--muted); font-weight: 600; font-size: 0.75rem; padding-bottom: 0.4rem; }
table.kv td { padding: 0.32rem 0; border-top: 1px solid var(--border-soft); font-variant-numeric: tabular-nums; }
table.kv td:first-child { color: var(--muted); }
table.kv td.num, table.kv th.num { text-align: right; font-family: var(--mono); }

/* backtest results */
.bt-summary { display: flex; flex-wrap: wrap; gap: 0.6rem 1.5rem; margin-bottom: 0.8rem; }
.bt-metric { display: flex; flex-direction: column; }
.bt-metric .lbl { font-size: 0.7rem; color: var(--muted); }
.bt-metric .val { font-family: var(--mono); font-size: 1.05rem; font-weight: 650; }
.bt-verdict { display: inline-flex; align-items: center; padding: 0.2rem 0.6rem; border-radius: 99px; font-size: 0.72rem; font-weight: 700; }
.bt-verdict.win { color: var(--buy); background: var(--buy-bg); }
.bt-verdict.lose { color: var(--sell); background: var(--sell-bg); }
.bt-note { font-size: 0.75rem; color: var(--muted-2); margin-top: 0.6rem; font-style: italic; }
.bt-message { color: var(--hold); font-size: 0.85rem; }

/* ------------------------------------------------------------------ footer */
.footer {
  max-width: 1180px; margin: 1rem auto 2rem;
  padding: 1rem 1.5rem;
  color: var(--muted-2);
  font-size: 0.78rem;
  border-top: 1px solid var(--border-soft);
}

/* responsive */
@media (max-width: 820px) {
  .detail-grid { grid-template-columns: 1fr; }
}

/* ------------------------------------------------------------- research tab */
.tab-research { color: var(--accent-2); }
.tab-research.active { border-bottom-color: var(--accent-2); }

.research-banner {
  background: linear-gradient(90deg, rgba(59,130,246,0.14), rgba(59,130,246,0.04));
  border: 1px solid #2b3b57;
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 0.7rem 1rem;
  font-size: 0.85rem;
  color: var(--text);
  margin-bottom: 1rem;
}
.research-banner strong { color: var(--accent-2); }

.research-overview { margin-bottom: 1.5rem; }
.research-q { font-size: 0.95rem; }
.research-sources { font-size: 0.78rem; margin-top: 0.5rem; }

.research-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.8rem;
  margin: 1rem 0;
}
.rstat {
  background: linear-gradient(180deg, var(--panel), var(--bg-elev));
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.9rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.rstat-val { font-family: var(--mono); font-size: 1.5rem; font-weight: 700; color: var(--accent-2); }
.rstat-lbl { font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.03em; }

.research-section-title { margin: 1.5rem 0 0.75rem; }

.research-card { display: flex; flex-direction: column; cursor: default; }
.research-card:hover { transform: none; box-shadow: var(--shadow); }
.research-returns {
  display: flex; justify-content: space-between;
  margin: 0.8rem 0;
  padding: 0.6rem 0;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}
.research-returns .lbl { display: block; font-size: 0.66rem; color: var(--muted); text-transform: uppercase; }
.research-returns .val { font-family: var(--mono); font-size: 1.05rem; font-weight: 650; }
.research-kv td { font-size: 0.8rem; padding: 0.25rem 0; }
.research-kv td.num { font-size: 0.78rem; }
.research-highlights {
  margin: 0.7rem 0 1rem;
  padding-left: 1.1rem;
  font-size: 0.8rem;
  color: var(--muted);
}
.research-highlights li { margin-bottom: 0.3rem; }
.research-highlights strong { color: var(--text); }
.live-jump { margin-top: auto; align-self: flex-start; }

.research-two-col {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 1rem;
  margin: 1.5rem 0;
}
@media (max-width: 820px) { .research-two-col { grid-template-columns: 1fr; } }

ul.rules { list-style: none; padding: 0; margin: 0; }
ul.rules li { padding: 0.4rem 0; border-bottom: 1px solid var(--border-soft); font-size: 0.88rem; }
ul.rules li:last-child { border-bottom: none; }
ul.rules .badge { margin-right: 0.5rem; }

.takeaway { margin-bottom: 0.9rem; }
.takeaway h4 { font-size: 0.9rem; margin-bottom: 0.2rem; }
.takeaway p { font-size: 0.83rem; margin: 0; }

table.limitations td { vertical-align: top; font-size: 0.82rem; padding: 0.5rem 0.6rem 0.5rem 0; }
table.limitations .lim-name { color: var(--sell); font-weight: 600; white-space: nowrap; }