:root {
  --bg:       #13161b;
  --panel:    #1c2028;
  --card:     #252a35;
  --border:   #2e3545;
  --accent:   #4f9cf9;
  --green:    #3ecf8e;
  --red:      #e05c5c;
  --yellow:   #f0b429;
  --text:     #dce4f0;
  --muted:    #7a8899;
  --hover:    #2a3040;
  --selected: #1a3a5c;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 13px;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  user-select: none;
}

/* ── Title bar ───────────────────────────────────────────── */

#titlebar {
  height: 36px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

#app-title {
  padding: 0 14px;
  font-size: 13px;
  color: var(--muted);
  pointer-events: none;
}

#window-controls { display: flex; }

#window-controls button {
  width: 46px;
  height: 36px;
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 15px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.12s, color 0.12s;
}

#window-controls button:hover { background: var(--hover); color: var(--text); }
#btn-close:hover               { background: var(--red) !important; color: #fff !important; }

/* ── Filter bar ──────────────────────────────────────────── */

#filterbar {
  height: 48px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 16px;
  flex-shrink: 0;
}

.filter-group { display: flex; align-items: center; gap: 6px; }

.filter-group label { color: var(--muted); font-size: 12px; white-space: nowrap; }

select,
input[type="date"] {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  padding: 4px 8px;
  border-radius: 4px;
  outline: none;
  cursor: pointer;
  transition: border-color 0.12s;
}

select            { min-width: 140px; }
input[type="date"]{ min-width: 130px; color-scheme: dark; }
select:focus, input[type="date"]:focus { border-color: var(--accent); }

#btn-get-data {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 5px 18px;
  border-radius: 4px;
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: opacity 0.12s;
  white-space: nowrap;
}

#btn-get-data:hover    { opacity: 0.85; }
#btn-get-data:active   { opacity: 0.7;  }
#btn-get-data:disabled { opacity: 0.4; cursor: default; }

#row-count { color: var(--muted); font-size: 12px; margin-left: 4px; }

/* ── Data table ──────────────────────────────────────────── */

#content   { flex: 1; overflow: hidden; display: flex; }
#table-wrap { flex: 1; overflow: auto; }

#tblMain { width: 100%; border-collapse: collapse; }

#tblMain thead th {
  position: sticky;
  top: 0;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  padding: 0;
}

.th-wrap {
  display: flex;
  align-items: stretch;
}

.col-label {
  flex: 1;
  padding: 8px 4px 8px 12px;
  color: var(--muted);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
  user-select: none;
  transition: color 0.12s;
  white-space: nowrap;
}

.col-label:hover            { color: var(--text); }
.col-label.sort-asc::after  { content: '  ▲'; color: var(--accent); }
.col-label.sort-desc::after { content: '  ▼'; color: var(--accent); }

/* Filtered column header */
#tblMain thead th.filtered                { background: rgba(79, 156, 249, 0.10); }
#tblMain thead th.filtered .col-label     { color: var(--accent); }
#tblMain thead th.filtered .col-label:hover { color: #fff; }

.col-filter-btn {
  width: 22px;
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 11px;
  cursor: pointer;
  padding: 0 4px 0 0;
  opacity: 0;
  transition: opacity 0.12s, color 0.12s;
  display: flex;
  align-items: center;
  justify-content: center;
}

th:hover .col-filter-btn   { opacity: 1; }
.col-filter-btn:hover      { color: var(--text); }
.col-filter-btn.active     { opacity: 1 !important; color: var(--accent); }

#tblMain tbody tr {
  border-bottom: 1px solid var(--border);
  cursor: default;
  transition: background 0.1s;
}

#tblMain tbody tr:hover    { background: var(--hover); }
#tblMain tbody tr.selected { background: var(--selected); }

#tblMain tbody td { padding: 7px 12px; white-space: nowrap; }

.empty-row td {
  color: var(--muted);
  font-style: italic;
  text-align: center;
  padding: 32px;
}

.positive { color: var(--green); }
.negative { color: var(--red);   }

/* ── Filter panel ────────────────────────────────────────── */

#filter-panel {
  position: fixed;
  z-index: 9999;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 8px 28px rgba(0,0,0,0.5);
  width: 250px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.fp-sort {
  display: flex;
  gap: 6px;
  padding: 8px;
}

.fp-sort-btn {
  flex: 1;
  background: var(--hover);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 4px;
  padding: 5px 6px;
  cursor: pointer;
  font-size: 12px;
  font-family: inherit;
  transition: background 0.12s, border-color 0.12s;
}

.fp-sort-btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

.fp-sep { height: 1px; background: var(--border); flex-shrink: 0; }

.fp-search-wrap { padding: 8px; }

.fp-search-wrap input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: 12px;
  padding: 5px 8px;
  outline: none;
  font-family: inherit;
  transition: border-color 0.12s;
}

.fp-search-wrap input:focus { border-color: var(--accent); }

.fp-sel-all-wrap {
  padding: 2px 8px 8px;
}

.fp-sel-all-wrap label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 12px;
  color: var(--text);
  padding: 3px 4px;
}

.fp-list {
  max-height: 220px;
  overflow-y: auto;
  padding: 2px 0;
  border-top: 1px solid var(--border);
}

.fp-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  cursor: pointer;
  font-size: 12px;
  color: var(--text);
  transition: background 0.1s;
}

.fp-item:hover { background: var(--hover); }
.fp-item input { cursor: pointer; flex-shrink: 0; }
.fp-blank      { color: var(--muted); font-style: italic; }

.fp-actions {
  display: flex;
  gap: 8px;
  padding: 8px;
}

.fp-clear {
  flex: 1;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 4px;
  padding: 5px;
  cursor: pointer;
  font-size: 12px;
  font-family: inherit;
  transition: border-color 0.12s, color 0.12s;
}

.fp-clear:hover { border-color: var(--red); color: var(--red); }

.fp-apply {
  flex: 1;
  background: var(--accent);
  border: 1px solid var(--accent);
  color: #fff;
  border-radius: 4px;
  padding: 5px;
  cursor: pointer;
  font-size: 12px;
  font-family: inherit;
  transition: opacity 0.12s;
}

.fp-apply:hover { opacity: 0.85; }

/* ── Column drag-and-drop ────────────────────────────────── */

#tblMain thead th[draggable="true"] { cursor: grab; }
#tblMain thead th[draggable="true"]:active { cursor: grabbing; }

th.col-dragging {
  opacity: 0.35;
}

th.col-drag-over {
  box-shadow: inset 3px 0 0 var(--accent);
  background: rgba(79, 156, 249, 0.08);
}

/* ── Context menu ────────────────────────────────────────── */

#ctx-menu {
  position: fixed;
  z-index: 10000;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 8px 28px rgba(0,0,0,0.55);
  min-width: 180px;
  padding: 4px 0;
  outline: none;
}

.ctx-item {
  padding: 7px 16px;
  font-size: 12px;
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.1s, color 0.1s;
  display: flex;
  align-items: center;
  gap: 8px;
}

.ctx-item:hover { background: var(--accent); color: #fff; }

.ctx-sep {
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

/* ── Toast notification ──────────────────────────────────── */

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 8px 18px;
  font-size: 12px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.45);
  opacity: 0;
  pointer-events: none;
  z-index: 11000;
  transition: opacity 0.18s, transform 0.18s;
  white-space: nowrap;
}

.toast.toast-show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}