:root {
  --bg: #f3f4f8;
  --panel: #ffffff;
  --ink: #1a1c2e;
  --muted: #6b7085;
  --border: #e4e6ef;
  --purple: #5b2a86;
  --purple-dark: #3d1b5c;
  --green-1: #d8f4e4;
  --green-3: #8fdcb0;
  --green-5: #26a65b;
  --red-1: #fbe1e1;
  --red-3: #f2a3a3;
  --red-5: #d3323f;
  --neutral: #eceef4;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(20, 20, 40, 0.06), 0 4px 16px rgba(20, 20, 40, 0.04);
}

/* Dark mode: system preference (unless explicitly overridden below), or
   the user's own toggle choice persisted via [data-theme] on <html>. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e1016;
    --panel: #171a23;
    --ink: #e8e9f0;
    --muted: #8992a6;
    --border: #262b38;
    --green-1: #113325;
    --green-3: #1e5c3d;
    --green-5: #33c078;
    --red-1: #3a1620;
    --red-3: #6e2530;
    --red-5: #f0525f;
    --neutral: #1c2029;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 4px 16px rgba(0, 0, 0, 0.25);
  }
}
:root[data-theme="dark"] {
  --bg: #0e1016;
  --panel: #171a23;
  --ink: #e8e9f0;
  --muted: #8992a6;
  --border: #262b38;
  --green-1: #113325;
  --green-3: #1e5c3d;
  --green-5: #33c078;
  --red-1: #3a1620;
  --red-3: #6e2530;
  --red-5: #f0525f;
  --neutral: #1c2029;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 4px 16px rgba(0, 0, 0, 0.25);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  transition: background 0.15s ease, color 0.15s ease;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: linear-gradient(120deg, var(--purple-dark), var(--purple));
  color: white;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: var(--shadow);
}

.brand { display: flex; align-items: center; gap: 12px; }

.brand-mark {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: white;
  color: var(--purple-dark);
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
}

.brand h1 { font-size: 17px; margin: 0; font-weight: 700; }
.brand .subtitle { font-size: 12px; margin: 2px 0 0; opacity: 0.85; }

.status { display: flex; align-items: center; gap: 12px; font-size: 12px; }
.status .pill {
  background: rgba(255,255,255,0.15);
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 600;
}
#refresh-btn, #theme-toggle {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: white;
  padding: 5px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
}
#refresh-btn:hover, #theme-toggle:hover { background: rgba(255,255,255,0.28); }
#theme-toggle { padding: 5px 9px; line-height: 1; }

.error-banner {
  background: #fdecea;
  color: #9a2a2a;
  border-bottom: 1px solid #f3c6c6;
  padding: 10px 24px;
  font-size: 13px;
}
.error-banner.hidden { display: none; }

/* Generic collapse utility - the scoped rules above are redundant with
   this but kept for specificity safety where they're used elsewhere. */
.hidden { display: none; }

main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 20px 20px 60px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px 20px;
  box-shadow: var(--shadow);
}

.panel-row {
  display: grid;
  /* minmax(0, 1fr), not bare 1fr - same fix as .heatmap-grid below: a wide
     child (a movers-table forced to min-width: 640px for its own mobile
     scroll behavior) was pushing each column past its track, so the whole
     row (F&O Gainers/Losers, Most Active, 52-Week Highs/Lows) drifted wider
     than every other panel and fell out of alignment with them. */
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.panel.half { margin: 0; min-width: 0; }

@media (max-width: 760px) {
  .panel-row { grid-template-columns: minmax(0, 1fr); }
}

.panel-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.panel-head.sub { margin-top: 18px; }
.panel-head h2 { font-size: 15px; margin: 0 0 4px; }
.panel-head h3 { font-size: 13px; margin: 0 0 4px; color: var(--muted); }
.panel-head .hint { font-size: 12px; color: var(--muted); margin: 0; }
.muted { color: var(--muted); font-weight: 400; font-size: 12px; }

.skeleton, .skeleton-grid {
  color: var(--muted);
  font-size: 13px;
  padding: 24px 0;
  text-align: center;
}

/* Heatmap */
.heatmap-grid {
  display: grid;
  /* minmax(0, 1fr), not bare 1fr - a bare 1fr track still won't shrink
     below its content's min-content width (long tile text, in this case),
     which was overflowing the grid past the viewport on mobile instead of
     wrapping/shrinking as intended. minmax(0, ...) removes that floor. */
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
  margin-top: 10px;
}
@media (max-width: 900px) { .heatmap-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 520px) { .heatmap-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

.tile {
  border-radius: 8px;
  padding: 10px 12px;
  color: white;
  cursor: pointer;
  min-height: 64px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.08s ease;
  border: 1px solid rgba(0,0,0,0.05);
}
.tile:hover { transform: translateY(-2px); }
.tile .sym { font-size: 12px; font-weight: 700; letter-spacing: 0.2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tile .tile-count { font-weight: 500; opacity: 0.8; font-size: 11px; }
.tile .val { font-size: 13px; font-weight: 600; }
.tile .chg { font-size: 12px; font-weight: 600; }

/* Advance/Decline */
.advdecl-body { margin-top: 8px; }
.ad-summary { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-bottom: 14px; }
.ad-bar {
  flex: 1;
  min-width: 220px;
  height: 22px;
  border-radius: 999px;
  overflow: hidden;
  display: flex;
  background: var(--neutral);
}
.ad-bar .adv { background: var(--green-5); }
.ad-bar .dec { background: var(--red-5); }
.ad-bar .unc { background: #b9bccc; }

.ad-counts { display: flex; gap: 16px; font-size: 13px; }
.ad-counts b { font-size: 16px; }
.ad-counts .adv-c b { color: var(--green-5); }
.ad-counts .dec-c b { color: var(--red-5); }

.ad-toggle {
  font-size: 12px;
  color: var(--purple);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  text-decoration: underline;
}

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 6px; }
th, td { text-align: right; padding: 6px 8px; border-bottom: 1px solid var(--border); }
th:first-child, td:first-child { text-align: left; }
th { color: var(--muted); font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: 0.03em; }
th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--ink); }
tr:last-child td { border-bottom: none; }

/* Movers tables scroll horizontally within their own box instead of
   letting a wide table (many columns) force the whole page to scroll
   sideways on mobile - the table itself refuses to shrink below
   min-width, so overflow-x kicks in on narrow viewports. */
.movers-table { overflow-x: auto; }
.movers-table table { min-width: 640px; }
@media (max-width: 700px) {
  .movers-table table { font-size: 12px; }
  th, td { padding: 5px 6px; }
  .mobile-hide { display: none; }
}
.sym-link {
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px dashed var(--muted);
}
.sym-link:hover { color: var(--purple); border-bottom-color: var(--purple); }
.cell-left { text-align: left; color: var(--muted); font-size: 12px; }

/* Sector filter bar */
.sector-filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  font-size: 13px;
  flex-wrap: wrap;
}
.sector-filter-bar label {
  font-weight: 600;
  color: var(--ink);
}
.sector-filter-bar select {
  font-size: 13px;
  padding: 5px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--ink);
  cursor: pointer;
}
.up { color: var(--green-5); font-weight: 600; }
.down { color: var(--red-5); font-weight: 600; }
.flat { color: var(--muted); }
.empty-note { color: var(--muted); font-size: 13px; padding: 10px 2px; }

/* Modal */
.modal { position: fixed; inset: 0; z-index: 50; display: flex; align-items: center; justify-content: center; }
.modal.hidden { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(20,20,35,0.45); }
.modal-card {
  position: relative;
  background: var(--panel);
  width: min(640px, 92vw);
  max-height: 82vh;
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  display: flex;
  flex-direction: column;
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--border);
}
.modal-header h2 { margin: 0; font-size: 16px; }
#modal-close { background: none; border: none; font-size: 16px; cursor: pointer; color: var(--muted); }
.modal-body { padding: 4px 18px 18px; overflow-y: auto; }

/* Market overview: index strip + bias box */
.index-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}
@media (max-width: 600px) { .index-strip { grid-template-columns: 1fr; } }

.index-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  background: var(--neutral);
}
.index-card .idx-name { font-size: 12px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: 0.03em; }
.index-card .idx-val { font-size: 20px; font-weight: 700; margin-top: 2px; }
.index-card .idx-chg { font-size: 13px; font-weight: 600; margin-top: 2px; }

.bias-box {
  border-top: 1px dashed var(--border);
  padding-top: 14px;
}
.bias-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}
.bias-label-tag { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em; margin-right: 8px; }
.bias-value { font-size: 18px; font-weight: 800; }
.bias-value.bullish { color: var(--green-5); }
.bias-value.bearish { color: var(--red-5); }
.bias-value.neutral { color: var(--muted); }
.bias-caveat { font-size: 11px; color: var(--muted); max-width: 360px; margin: 4px 0 0; }

.bias-factors {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.bias-factor {
  display: flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 12px;
  background: var(--neutral);
}
.bias-factor .dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.bias-factor .dot.up { background: var(--green-5); }
.bias-factor .dot.down { background: var(--red-5); }
.bias-factor .dot.flat { background: #b9bccc; }
.bias-factor .f-name { font-weight: 600; }
.bias-factor .f-detail { color: var(--muted); }

/* ORB scanner */
.orb-tabs {
  display: flex; gap: 6px; margin-top: 12px;
  overflow-x: auto; -webkit-overflow-scrolling: touch; padding-bottom: 2px;
}
.orb-tab {
  font-size: 12.5px; font-weight: 600; color: var(--muted);
  background: var(--neutral); border: 1px solid var(--border);
  padding: 6px 16px; border-radius: 999px; cursor: pointer;
  flex-shrink: 0;
}
.orb-tab:hover { background: #e3ddf0; }
.orb-tab.active { background: var(--purple); color: white; border-color: var(--purple); }
.orb-status-note { font-size: 12px; color: var(--muted); margin: 10px 0 0; }
.breakout-up { color: var(--green-5); font-weight: 700; }
.breakout-down { color: var(--red-5); font-weight: 700; }
.breakout-none { color: var(--muted); }

/* Scanners mega-panel: one top-level group visible at a time (ORB / Buy-Sell
   / 15-Min Breakout / Screener) - this is the main mobile-friendliness fix:
   previously all four full sections rendered stacked and always-visible,
   which made the page extremely long to scroll on a phone. */
.group-tabs {
  display: flex; gap: 4px; margin-top: 10px;
  overflow-x: auto; -webkit-overflow-scrolling: touch; padding-bottom: 2px;
  border-bottom: 1px solid var(--border);
}
.group-tab {
  font-size: 13px; font-weight: 700; color: var(--muted);
  background: none; border: none; border-bottom: 2px solid transparent;
  padding: 8px 14px; cursor: pointer; white-space: nowrap; flex-shrink: 0;
}
.group-tab:hover { color: var(--ink); }
.group-tab.active { color: var(--purple); border-bottom-color: var(--purple); }
.scanner-group { display: none; margin-top: 14px; }
.scanner-group.active { display: block; }

/* F&O Screener condition chips */
.checks-cell { max-width: 420px; }
.check-chip {
  display: inline-block; font-size: 11px; font-weight: 600;
  padding: 2px 7px; border-radius: 999px; margin: 2px 3px 2px 0;
  background: var(--neutral); white-space: nowrap;
}
.check-chip.up { color: var(--green-5); }
.check-chip.down { color: var(--muted); }
