/* FXOne Dashboard — dark theme */
:root {
  --bg:        #0d1117;
  --surface:   #161b22;
  --border:    #30363d;
  --text:      #e6edf3;
  --muted:     #8b949e;
  --green:     #3fb950;
  --yellow:    #d29922;
  --red:       #f85149;
  --blue:      #58a6ff;
  --purple:    #bc8cff;
  --radius:    8px;
  --font:      'Segoe UI', system-ui, sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  min-height: 100vh;
}

/* ── Header ── */
#header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
}

#header h1 { font-size: 16px; font-weight: 600; letter-spacing: 0.5px; }

.health-badge {
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.health-badge.GREEN  { background: rgba(63,185,80,.2);  color: var(--green);  border: 1px solid var(--green); }
.health-badge.YELLOW { background: rgba(210,153,34,.2); color: var(--yellow); border: 1px solid var(--yellow);}
.health-badge.RED    { background: rgba(248,81,73,.2);  color: var(--red);    border: 1px solid var(--red);  }

#last-updated { color: var(--muted); font-size: 12px; margin-left: auto; }

#btn-refresh {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 12px;
}
#btn-refresh:hover { border-color: var(--blue); color: var(--blue); }

/* ── Nav tabs ── */
#nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 2px;
  padding: 0 20px;
  overflow-x: auto;
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  padding: 10px 14px;
  white-space: nowrap;
  transition: color .15s;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--blue); border-bottom-color: var(--blue); }

/* ── Main content ── */
#content { padding: 20px; max-width: 1400px; margin: 0 auto; }

.tab-section { display: none; }
.tab-section.visible { display: block; }

/* ── Cards / grid ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.card h3 { font-size: 13px; color: var(--muted); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.5px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

.section-grid { display: flex; flex-direction: column; gap: 16px; }

/* ── Stat tiles ── */
.stat-tile { text-align: center; }
.stat-tile .value { font-size: 24px; font-weight: 700; }
.stat-tile .label { font-size: 12px; color: var(--muted); margin-top: 4px; }
.stat-tile .value.pos { color: var(--green); }
.stat-tile .value.neg { color: var(--red); }

/* ── Status panel ── */
.status-row { display: flex; align-items: center; gap: 10px; padding: 6px 0; border-bottom: 1px solid var(--border); }
.status-row:last-child { border-bottom: none; }
.status-row .label { color: var(--muted); min-width: 160px; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.dot-green  { background: var(--green); }
.dot-yellow { background: var(--yellow); }
.dot-red    { background: var(--red); }

.symbol-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
@media (max-width: 560px) { .symbol-cards { grid-template-columns: 1fr; } }

.error-log { font-family: monospace; font-size: 12px; color: var(--muted); }
.error-log .err-row { padding: 4px 0; border-bottom: 1px solid var(--border); }
.error-row  { color: var(--red); }
.warn-row   { color: var(--yellow); }

/* ── Table ── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { background: var(--bg); color: var(--muted); font-weight: 500; padding: 8px 12px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
td { padding: 8px 12px; border-bottom: 1px solid var(--border); }
tr:hover td { background: rgba(255,255,255,.03); }
.badge { padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 600; }
.badge.LONG, .badge.tp_hit  { background: rgba(63,185,80,.15); color: var(--green); }
.badge.SHORT, .badge.sl_hit { background: rgba(248,81,73,.15); color: var(--red); }
.badge.manual               { background: rgba(139,148,158,.15); color: var(--muted); }

/* ── Filters ── */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.filters select, .filters input {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 5px 10px;
  border-radius: var(--radius);
  font-size: 13px;
}
.filters button {
  background: var(--blue);
  border: none;
  color: #fff;
  padding: 5px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 13px;
}

/* ── Pagination ── */
.pagination { display: flex; gap: 8px; align-items: center; margin-top: 12px; }
.pagination button {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 12px;
}
.pagination button:disabled { opacity: 0.4; cursor: default; }
.pagination .info { color: var(--muted); font-size: 12px; }

/* ── Chart containers ── */
.chart-wrap { position: relative; height: 260px; }
.chart-toggle { display: flex; gap: 6px; margin-bottom: 10px; }
.chart-toggle button {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 3px 10px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 12px;
}
.chart-toggle button.active { border-color: var(--blue); color: var(--blue); background: rgba(88,166,255,.1); }

/* ── Heatmap ── */
.heatmap { display: grid; gap: 2px; font-size: 11px; }
.heatmap-row { display: flex; gap: 2px; align-items: center; }
.heatmap-label { width: 32px; color: var(--muted); text-align: right; margin-right: 4px; flex-shrink: 0; }
.heatmap-cell { width: 28px; height: 22px; border-radius: 3px; display: flex; align-items: center; justify-content: center; color: var(--bg); font-size: 10px; }

/* ── Misc ── */
.mt-16 { margin-top: 16px; }
.text-muted { color: var(--muted); }
.text-green { color: var(--green); }
.text-red   { color: var(--red); }
.empty-state { text-align: center; padding: 40px; color: var(--muted); }