:root {
  --bg: #0b0e14;
  --panel: #131722;
  --panel-2: #1a1f2c;
  --border: #232734;
  --text: #d1d4dc;
  --text-dim: #787b86;
  --accent: #2962ff;
  --up: #26a69a;
  --down: #ef5350;
  --radius: 8px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px;
}

.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 12px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 16px;
  white-space: nowrap;
}
.brand-mark { color: var(--accent); }

.search-wrap {
  position: relative;
  flex: 1;
  max-width: 480px;
}

#searchInput {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 14px;
  border-radius: var(--radius);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}
#searchInput:focus { border-color: var(--accent); }

.search-results {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-height: 320px;
  overflow-y: auto;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.search-results.hidden { display: none; }

.search-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 14px;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
}
.search-item:last-child { border-bottom: none; }
.search-item:hover { background: rgba(41, 98, 255, 0.12); }
.search-item .si-symbol { font-weight: 600; color: var(--text); }
.search-item .si-name { color: var(--text-dim); font-size: 12.5px; flex: 1; margin-left: 10px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.search-item .si-exchange { color: var(--text-dim); font-size: 11px; border: 1px solid var(--border); border-radius: 4px; padding: 1px 6px; }
.search-empty { padding: 14px; color: var(--text-dim); text-align: center; }

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  white-space: nowrap;
}
.last-updated { color: var(--text-dim); font-size: 12px; }
.icon-btn {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  min-width: 32px;
  height: 32px;
  padding: 0 10px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, transform 0.15s;
  white-space: nowrap;
}
.icon-btn:hover { background: rgba(255,255,255,0.06); }
.icon-btn.spinning { animation: spin 0.6s linear; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.content {
  flex: 1;
  padding: 20px 24px 40px;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
}

.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text);
}
.empty-state.hidden { display: none; }
.empty-state .muted { color: var(--text-dim); font-size: 13px; margin-top: 6px; }

.groups-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.group {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: opacity 0.15s, transform 0.15s;
}
.group.dragging-group { opacity: 0.4; }
.group.drop-target-group { outline: 2px dashed var(--accent); outline-offset: -2px; }

.group-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
}

.group-drag-handle {
  cursor: grab;
  color: var(--text-dim);
  font-size: 15px;
  user-select: none;
}

.group-name-input {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
  padding: 4px 8px;
  border-radius: 6px;
  min-width: 60px;
  max-width: 260px;
}
.group-name-input:hover { background: rgba(255,255,255,0.04); }
.group-name-input:focus { outline: none; border-color: var(--accent); background: rgba(255,255,255,0.04); }

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

.group-actions {
  margin-left: auto;
  display: flex;
  gap: 8px;
}

.group-add-btn, .group-delete-btn {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.group-add-btn:hover { color: var(--accent); border-color: var(--accent); }
.group-delete-btn:hover { color: var(--down); border-color: var(--down); }

.group-empty {
  padding: 20px;
  text-align: center;
  color: var(--text-dim);
  font-size: 12.5px;
}
.group-empty.hidden { display: none; }

.watch-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}
.watch-table.hidden { display: none; }

.col-symbol { width: 18%; }
.col-name { width: 27%; }
.col-price { width: 17%; }
.col-change { width: 13%; }
.col-range { width: 17%; }
.col-actions { width: 40px; }

.watch-body tr.drop-target-row td { box-shadow: inset 0 2px 0 var(--accent); }
.watch-body tr.dragging-row { opacity: 0.35; }
.watch-body tr { cursor: pointer; }

.watch-table thead th {
  text-align: left;
  font-weight: 500;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel-2);
}

.watch-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.watch-table tbody tr:last-child td { border-bottom: none; }
.watch-table tbody tr {
  transition: background 0.4s ease;
}
.watch-table tbody tr:hover { background: rgba(255,255,255,0.03); }

.watch-table tbody tr.flash-up { background: rgba(38, 166, 154, 0.15); }
.watch-table tbody tr.flash-down { background: rgba(239, 83, 80, 0.15); }

.col-price, .col-change { text-align: right; font-variant-numeric: tabular-nums; }
.col-range { text-align: right; color: var(--text-dim); font-size: 12.5px; font-variant-numeric: tabular-nums; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.col-actions { text-align: right; width: 40px; }

.col-symbol { display: flex; align-items: center; gap: 8px; }
.drag-handle {
  cursor: grab;
  color: var(--text-dim);
  opacity: 0;
  transition: opacity 0.15s;
  font-size: 13px;
}
tr:hover .drag-handle { opacity: 1; }

.sym-badge {
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.02em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.col-name { overflow: hidden; }
.name-text, .exchange-text {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.name-text { color: var(--text); }
.exchange-text { color: var(--text-dim); font-size: 11.5px; margin-top: 2px; }

.price-text { font-weight: 600; font-size: 14.5px; }
.extended-text {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 3px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
}
.extended-text.hidden { display: none; }
.extended-text .ext-tag {
  text-transform: uppercase;
  font-size: 9.5px;
  letter-spacing: 0.03em;
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0 4px;
  color: var(--text-dim);
}
.extended-text .ext-value.up { color: var(--up); }
.extended-text .ext-value.down { color: var(--down); }

.change-abs, .change-pct { font-weight: 500; }
.up { color: var(--up); }
.down { color: var(--down); }
.flat { color: var(--text-dim); }

.remove-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 14px;
  opacity: 0;
  transition: opacity 0.15s, color 0.15s;
  padding: 4px 8px;
}
tr:hover .remove-btn { opacity: 1; }
.remove-btn:hover { color: var(--down); }

.error-text { color: var(--down); font-size: 12.5px; }

/* --- Modal de gráfica --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}
.modal-overlay.hidden { display: none; }

.modal-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 100%;
  max-width: 880px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.modal-title { display: flex; flex-direction: column; }
.chart-symbol { font-weight: 700; font-size: 17px; }
.chart-name { color: var(--text-dim); font-size: 12.5px; margin-top: 2px; }

.modal-price {
  margin-left: auto;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}
.chart-price { font-weight: 700; font-size: 18px; font-variant-numeric: tabular-nums; }
.chart-change { font-size: 12.5px; font-weight: 500; margin-top: 2px; }

.range-selector {
  display: flex;
  gap: 6px;
  padding: 10px 20px;
  border-bottom: 1px solid var(--border);
}
.range-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 12px;
  padding: 5px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.range-btn:hover { color: var(--text); border-color: var(--accent); }
.range-btn.active { color: #fff; background: var(--accent); border-color: var(--accent); }

.chart-container {
  height: 420px;
  position: relative;
}

.chart-loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 13px;
  background: rgba(19, 23, 34, 0.6);
}
.chart-loading.hidden { display: none; }

@media (max-width: 720px) {
  .topbar { gap: 12px; padding: 10px 14px; }
  .brand-name { display: none; }
  .content { padding: 14px; }
  .col-range { display: none; }
  .watch-table thead th.col-range { display: none; }
  .chart-container { height: 300px; }
  .modal-header { flex-wrap: wrap; }
  .range-selector { overflow-x: auto; }
}