/* ─── Theme variables ─────────────────────────────────────────────── */
:root {
  --bg:           #0a0a0a;
  --treemap-bg:   #050505;
  --text:         #ffffff;
  --text-muted:   #aaaaaa;
  --text-dim:     #888888;
  --text-faint:   #666666;
  --border:       #1f1f1f;
  --border-soft:  #1a1a1a;
  --hover-bg:     rgba(255,255,255,0.06);
  --hover-bg-2:   rgba(255,255,255,0.14);
  --hover-bg-3:   rgba(255,255,255,0.16);
  --status-bg:    rgba(255,255,255,0.04);
  --button-bg:    rgba(255,255,255,0.06);
  --button-border:rgba(255,255,255,0.10);
  --button-bg-2:  rgba(255,255,255,0.08);
  --tile-shadow:  0 6px 24px rgba(0, 0, 0, 0.7), 0 0 0 2px rgba(255, 255, 255, 0.5);
  --tooltip-bg:   rgba(15, 15, 15, 0.96);
  --tooltip-border: rgba(255,255,255,0.1);
  --tooltip-shadow: 0 12px 48px rgba(0,0,0,0.7);
  --tooltip-divider: rgba(255,255,255,0.08);
  --tooltip-meta-text: #f5f5f5;
  --menu-bg:      rgba(15,15,15,0.97);
  --menu-border:  rgba(255,255,255,0.10);
  --menu-shadow:  0 14px 50px rgba(0,0,0,0.7);
  --row-hover:    rgba(255,255,255,0.08);
  --letter-color: rgba(255,255,255,0.92);
  --letter-shadow: 0 1px 2px rgba(0,0,0,0.65);
  --tile-text:    rgba(255,255,255,0.95);
  --tile-text-shadow: 0 1px 2px rgba(0,0,0,0.6);
  --tile-mcap:    rgba(255,255,255,0.75);
  --logo-shadow:  drop-shadow(0 2px 4px rgba(0,0,0,0.5));
  --up:           #4ade80;
  --down:         #fca5a5;
  --flat:         #d4d4d4;
  --threshold-text: #94a3b8;
}
[data-theme="light"] {
  /* JS additionally sets every sector and cell background to #ffffff with a
     thin gray border, so the entire canvas is pure white — sector colors
     survive only as sector-label text colors. */
  --bg:           #ffffff;
  --treemap-bg:   #ffffff;
  --text:         #0f172a;
  --text-muted:   #475569;
  --text-dim:     #64748b;
  --text-faint:   #94a3b8;
  --border:       #e5e7eb;
  --border-soft:  #f1f5f9;
  --hover-bg:     rgba(0,0,0,0.04);
  --hover-bg-2:   rgba(0,0,0,0.08);
  --hover-bg-3:   rgba(0,0,0,0.10);
  --status-bg:    rgba(0,0,0,0.03);
  --button-bg:    #ffffff;
  --button-border:rgba(0,0,0,0.10);
  --button-bg-2:  rgba(0,0,0,0.05);
  --tile-shadow:  0 6px 24px rgba(0,0,0,0.18), 0 0 0 2px rgba(0,0,0,0.18);
  --tooltip-bg:   #ffffff;
  --tooltip-border: rgba(0,0,0,0.10);
  --tooltip-shadow: 0 12px 36px rgba(0,0,0,0.18);
  --tooltip-divider: rgba(0,0,0,0.08);
  --tooltip-meta-text: #0f172a;
  --menu-bg:      #ffffff;
  --menu-border:  rgba(0,0,0,0.10);
  --menu-shadow:  0 14px 40px rgba(0,0,0,0.18);
  --row-hover:    rgba(0,0,0,0.05);
  --letter-color: #0f172a;
  --letter-shadow: none;
  --tile-text:    #0f172a;
  --tile-text-shadow: none;
  --tile-mcap:    #475569;
  --logo-shadow:  drop-shadow(0 1px 2px rgba(0,0,0,0.18));
  --up:           #16a34a;
  --down:         #dc2626;
  --flat:         #94a3b8;
  --threshold-text: #475569;
}
[data-theme="light"] .sector-label:hover { background: rgba(0,0,0,0.05); }
[data-theme="light"] .sector-label .s-name { color: var(--sector-accent, #0f172a); }
[data-theme="light"] .sector-label .s-meta { color: #64748b; }

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background 0.18s, color 0.18s;
}

/* ─── Header ───────────────────────────────────────────────────────── */
header {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: relative;
  z-index: 5;
}
.title { display: flex; align-items: baseline; gap: 14px; }
.back-btn {
  background: var(--button-bg-2);
  border: 1px solid var(--button-border);
  color: var(--text);
  font-size: 12px;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.12s;
}
.back-btn:hover { background: var(--hover-bg-3); }
body.drilled h1::after {
  content: ' / ' attr(data-sector);
  color: var(--text-dim);
  font-weight: 500;
}

/* ─── Country picker ──────────────────────────────────────────── */
.threshold-picker { position: relative; }
.threshold-btn {
  background: var(--button-bg);
  border: 1px solid var(--button-border);
  color: var(--text);
  font-size: 12px;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-variant-numeric: tabular-nums;
  transition: background 0.12s, border-color 0.12s;
}
.threshold-btn:hover { background: var(--hover-bg-2); }
.threshold-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 120px;
  background: var(--menu-bg);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--menu-border);
  border-radius: 10px;
  padding: 6px;
  box-shadow: var(--menu-shadow);
  z-index: 1000;
}
.threshold-row {
  display: block;
  width: 100%;
  background: transparent;
  border: 0;
  color: var(--text);
  font-size: 12px;
  text-align: left;
  padding: 7px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-variant-numeric: tabular-nums;
  transition: background 0.1s;
}
.threshold-row:hover { background: var(--row-hover); }
.threshold-row.active {
  background: var(--row-hover);
  font-weight: 600;
}

.country-picker { position: relative; }
.sector-picker  { position: relative; }
.country-btn {
  background: var(--button-bg);
  border: 1px solid var(--button-border);
  color: var(--text);
  font-size: 12px;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
}
.country-btn:hover {
  background: var(--hover-bg-2);
  border-color: var(--button-border);
}
.country-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  width: 240px;
  max-height: 60vh;
  overflow-y: auto;
  background: var(--menu-bg);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--menu-border);
  border-radius: 10px;
  padding: 6px;
  box-shadow: var(--menu-shadow);
  z-index: 1000;
}
.country-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 10px;
  width: 100%;
  align-items: baseline;
  background: transparent;
  border: 0;
  color: var(--text);
  font-size: 12px;
  text-align: left;
  padding: 7px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.1s;
}
.country-row:hover { background: var(--row-hover); }
.country-row.active {
  background: var(--row-hover);
  font-weight: 600;
}
.country-row .cr-name { font-weight: 500; }
.country-row .cr-mc {
  font-variant-numeric: tabular-nums;
  color: var(--text-muted);
}
.country-row .cr-n {
  font-variant-numeric: tabular-nums;
  color: var(--text-dim);
  font-size: 11px;
  min-width: 28px;
  text-align: right;
}

h1 { font-size: 17px; font-weight: 600; letter-spacing: -0.01em; }
.subtitle { color: var(--text-dim); font-size: 12px; }
.threshold-hint {
  color: var(--threshold-text);
  font-size: 11px;
  font-weight: 500;
  padding: 3px 8px;
  background: var(--status-bg);
  border-radius: 4px;
  letter-spacing: 0.01em;
}
body.drilled .subtitle { display: none; }

.controls { display: flex; align-items: center; gap: 14px; }

.totals {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 12px;
  background: var(--status-bg);
  border: 1px solid var(--button-border);
  border-radius: 8px;
}
.totals-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  font-weight: 600;
}
.totals-value {
  font-size: 16px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
  color: var(--text);
}
.totals-change {
  font-size: 12px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.totals-change.up   { color: var(--up); }
.totals-change.down { color: var(--down); }

.status {
  color: var(--text-muted);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  padding: 4px 10px;
  background: var(--status-bg);
  border-radius: 6px;
}
.status .dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #22c55e;
  margin-right: 6px;
  vertical-align: middle;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.3; }
}

button#refreshBtn,
button#themeBtn,
button#scaleBtn {
  background: var(--button-bg);
  border: 1px solid var(--button-border);
  color: var(--text);
  width: 30px; height: 30px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  transition: background 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}
button#refreshBtn:hover,
button#themeBtn:hover,
button#scaleBtn:hover { background: var(--hover-bg-2); }
button#scaleBtn {
  width: auto;
  min-width: 38px;
  padding: 0 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
button#scaleBtn[data-mode="log"] {
  background: rgba(34, 197, 94, 0.18);
  border-color: rgba(34, 197, 94, 0.35);
  color: var(--up);
}
button#refreshBtn.spinning { animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Treemap canvas ──────────────────────────────────────────────── */
#treemap {
  position: relative;
  width: 100%;
  height: calc(100vh - 56px - 28px);
  background: var(--treemap-bg);
}

.sector {
  position: absolute;
  border-radius: 4px;
  pointer-events: none;
  opacity: 0.55;
}
.sector-label {
  position: absolute;
  top: 4px;
  left: 8px;
  font-size: 10px;
  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  transition: background 0.12s;
}
.sector-label:hover { background: rgba(255,255,255,0.10); }
.sector-label:hover .s-name { text-decoration: underline; }
.sector-label .s-name {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.95);
  font-weight: 700;
}
.sector-label .s-meta {
  margin-left: 8px;
  color: rgba(255,255,255,0.65);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
}

.cell {
  position: absolute;
  border-radius: 3px;
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  padding: 4px;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
  will-change: transform;
}
.cell:hover {
  transform: scale(1.025);
  z-index: 50;
  box-shadow: var(--tile-shadow);
}

.logo {
  flex: 1 1 0;
  width: 100%;
  min-height: 0;
  object-fit: contain;
  filter: var(--logo-shadow);
  pointer-events: none;
  user-select: none;
}
.letter {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--letter-color);
  text-shadow: var(--letter-shadow);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  letter-spacing: -0.02em;
  z-index: 0;
}
.cell .logo { position: relative; z-index: 1; }
.cell.large .logo {
  /* fills via flex:1; same behavior */
}
.cell.large .change { font-size: 13px; }
.cell.large .mcap   { font-size: 12px; margin-top: 2px; }

.info {
  flex: 0 0 auto;
  margin-top: 4px;
  text-align: center;
  pointer-events: none;
  line-height: 1.15;
}
.ticker {
  font-size: 11px;
  font-weight: 700;
  color: var(--tile-text);
  text-shadow: var(--tile-text-shadow);
  letter-spacing: 0.02em;
}
.change {
  font-size: 10px;
  font-weight: 600;
  margin-top: 1px;
  font-variant-numeric: tabular-nums;
  text-shadow: var(--tile-text-shadow);
}
.change.up   { color: var(--up); }
.change.down { color: var(--down); }
.change.flat { color: var(--flat); }
.mcap {
  font-size: 9px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--tile-mcap);
  margin-top: 1px;
  text-shadow: var(--tile-text-shadow);
  letter-spacing: 0.02em;
}

/* ─── Tooltip ─────────────────────────────────────────────────────── */
.tooltip {
  position: fixed;
  background: var(--tooltip-bg);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid var(--tooltip-border);
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 13px;
  pointer-events: none;
  display: none;
  z-index: 1000;
  min-width: 240px;
  max-width: 300px;
  box-shadow: var(--tooltip-shadow);
  color: var(--text);
}
.t-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--tooltip-divider);
}
.t-header img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: 8px;
  background: white;
  padding: 4px;
}
.t-name { font-weight: 600; font-size: 14px; line-height: 1.2; }
.t-ticker {
  color: var(--text-dim);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.t-row {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  font-size: 12px;
}
.t-row > span:first-child { color: var(--text-dim); }
.t-row > span:last-child  {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--tooltip-meta-text);
}
.up   { color: var(--up)   !important; }
.down { color: var(--down) !important; }

/* ─── Footer ──────────────────────────────────────────────────────── */
footer {
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  font-size: 11px;
  color: var(--text-faint);
  background: var(--bg);
  border-top: 1px solid var(--border-soft);
}

/* ─── Responsive ──────────────────────────────────────────────────── */
/* ─── List view (drill mode) ──────────────────────────────────────── */
.stock-list-wrap {
  width: 100%;
  height: 100%;
  overflow: auto;
  padding: 12px 16px;
  box-sizing: border-box;
}
.stock-list {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  color: var(--text);
}
.stock-list thead th {
  position: sticky;
  top: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  font-weight: 600;
  color: var(--text-faint);
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.04em;
  user-select: none;
  z-index: 2;
}
.stock-list th.sortable { cursor: pointer; }
.stock-list th.sortable:hover { color: var(--text); }
.stock-list tbody tr {
  cursor: pointer;
  border-bottom: 1px solid var(--border-soft);
  transition: background 0.1s ease;
}
.stock-list tbody tr:hover { background: var(--cell-hover, rgba(127,127,127,0.08)); }
.stock-list td {
  padding: 8px 10px;
  vertical-align: middle;
}
.stock-list .col-rank { width: 40px; color: var(--text-faint); font-variant-numeric: tabular-nums; }
.stock-list .col-logo { width: 32px; }
.stock-list .col-logo img {
  width: 24px; height: 24px;
  object-fit: contain;
  vertical-align: middle;
}
.stock-list .col-ticker { font-family: ui-monospace, SF Mono, monospace; font-weight: 600; min-width: 80px; }
.stock-list .col-name { min-width: 160px; }
.stock-list .col-sector { color: var(--text-faint); }
.stock-list .col-mc, .stock-list .col-change {
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}
.stock-list .col-change.up   { color: var(--up); }
.stock-list .col-change.down { color: var(--down); }
.stock-list .col-change.flat { color: var(--flat); }
.list-empty {
  padding: 40px;
  text-align: center;
  color: var(--text-faint);
}

/* ─── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 720px) {
  .subtitle { display: none; }
  header { padding: 0 12px; }
  footer { padding: 0 12px; font-size: 10px; }
  .stock-list { font-size: 12px; }
  .stock-list td { padding: 6px 6px; }
  .stock-list .col-sector { display: none; }
}