:root {
  --bg: #0a0e1a;
  --bg-elev: #131826;
  --bg-elev-2: #1b2030;
  --border: #262d40;
  --border-strong: #353e57;
  --text: #e6e8ee;
  --text-dim: #8b93a8;
  --text-mute: #5b6275;
  --accent: #d4a574;
  --accent-soft: #d4a57422;
  --up: #ff4d5e;
  --up-soft: #ff4d5e22;
  --down: #22c55e;
  --down-soft: #22c55e22;
  --neutral: #6b7280;
  --warn: #f59e0b;
  --warn-soft: #f59e0b22;
}

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

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Noto Sans TC', -apple-system, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}
body {
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(212,165,116,0.06), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(34,197,94,0.04), transparent 60%),
    var(--bg);
}
.mono { font-family: 'JetBrains Mono', ui-monospace, "Cascadia Mono", Menlo, Consolas, monospace; font-variant-numeric: tabular-nums; }

.container {
  max-width: 1600px;
  margin: 0 auto;
  padding: 28px 24px 60px;
}

header.top {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 24px; padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap; gap: 16px;
}
header.top h1 { font-weight: 300; font-size: 26px; letter-spacing: 0.05em; }
header.top h1 .accent { color: var(--accent); font-weight: 500; }
header.top .sub {
  color: var(--text-dim); font-size: 12px; letter-spacing: 0.1em;
  text-transform: uppercase; margin-top: 4px;
}
header.top .actions { display: flex; gap: 8px; flex-wrap: wrap; }

.btn {
  background: var(--bg-elev); color: var(--text);
  border: 1px solid var(--border); padding: 7px 14px;
  border-radius: 4px; cursor: pointer; font-size: 13px;
  font-family: inherit; transition: all 0.15s ease;
  white-space: nowrap;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.btn.primary:hover { background: var(--accent); color: var(--bg); }
.btn.danger:hover { border-color: var(--up); color: var(--up); }
.btn.icon { padding: 4px 10px; font-size: 13px; line-height: 1; }

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px; margin-bottom: 24px;
}
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 14px 16px;
  position: relative;
  overflow: hidden;
}
.card .label {
  font-size: 11px; color: var(--text-dim);
  letter-spacing: 0.12em; text-transform: uppercase;
  margin-bottom: 6px;
}
.card .value {
  font-size: 22px; font-weight: 500;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
}
.card .sub {
  font-size: 11px; color: var(--text-mute); margin-top: 4px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
}
.card.highlight { border-color: var(--accent); }
.card.highlight .value { color: var(--accent); }

section.panel {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 20px;
}
.panel-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px; border-bottom: 1px solid var(--border);
  flex-wrap: wrap; gap: 8px;
}
.panel-head h2 {
  font-size: 13px; letter-spacing: 0.1em;
  text-transform: uppercase; font-weight: 500;
  color: var(--text-dim);
}
.panel-head h2 .num {
  color: var(--accent); margin-right: 8px;
  font-family: 'JetBrains Mono', monospace;
}
.panel-head .head-hint {
  font-size: 11px; color: var(--text-mute);
}
.panel-head .head-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.panel-body { padding: 16px; }

.settings {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
}
.field { display: flex; flex-direction: column; gap: 4px; }
.field label {
  font-size: 11px; color: var(--text-dim);
  letter-spacing: 0.08em; text-transform: uppercase;
}
.field input,
.field select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  transition: border-color 0.15s ease;
}
.field input:focus,
.field select:focus { outline: none; border-color: var(--accent); }
.field input[readonly],
.field input.derived {
  color: var(--text-dim);
  background: rgba(255,255,255,0.02);
  cursor: not-allowed;
}
.field .hint {
  font-size: 11px; color: var(--text-mute);
  letter-spacing: 0;
  text-transform: none;
}
.field .hint.derived { color: var(--accent); }

.section-disabled {
  opacity: 0.55;
  pointer-events: none;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-top: 14px;
}
.metric-grid .metric-tile {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px 12px;
}
.metric-grid .metric-tile .k {
  font-size: 11px; color: var(--text-dim);
  letter-spacing: 0.08em; text-transform: uppercase;
  margin-bottom: 4px; display: block;
}
.metric-grid .metric-tile .v {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
  font-size: 18px; font-weight: 500;
}

.table-wrap { overflow-x: auto; }

table {
  width: 100%; border-collapse: collapse;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
  font-size: 14px;
}
th {
  text-align: left; padding: 11px 10px;
  font-weight: 500; font-size: 11px;
  color: var(--text-dim); letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev-2);
  white-space: nowrap;
}
th.num { text-align: right; }
td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
td.num { text-align: right; }
td.up { color: var(--up); }
td.down { color: var(--down); }
td.muted { color: var(--text-mute); }

td input.cell,
td select.cell {
  width: 100%; background: transparent;
  border: 1px solid transparent; color: var(--text);
  padding: 6px 8px; border-radius: 3px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  min-width: 50px;
}
td input.cell:hover,
td select.cell:hover { border-color: var(--border-strong); }
td input.cell:focus,
td select.cell:focus {
  outline: none; border-color: var(--accent);
  background: var(--bg);
}
td.num input.cell { text-align: right; }
td.actions-cell { text-align: right; padding-right: 6px; }
td.actions-cell .btn { padding: 3px 8px; font-size: 12px; }

td select.cell {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 10 10'><path fill='%238b93a8' d='M5 7L1 3h8z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 6px center;
  padding-right: 22px;
  cursor: pointer;
}
td select.cell option {
  background: var(--bg-elev-2); color: var(--text);
}

.pill {
  display: inline-block; padding: 3px 10px;
  border-radius: 3px; font-size: 13px; font-weight: 600;
  letter-spacing: 0.05em;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
}
.pill.up    { background: var(--up-soft);   color: var(--up); }
.pill.down  { background: var(--down-soft); color: var(--down); }
.pill.warn  { background: var(--warn-soft); color: var(--warn); }
.pill.neutral { background: rgba(139,147,168,0.12); color: var(--text-dim); }

.warnings {
  display: none;
  margin: 0 0 20px;
  padding: 10px 14px;
  border-radius: 6px;
  background: var(--warn-soft);
  border: 1px solid var(--warn);
  color: var(--warn);
  font-size: 13px;
  line-height: 1.55;
}
.warnings.visible { display: block; }
.warnings ul { margin: 0; padding-left: 18px; }

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: 20px;
}
@media (max-width: 1200px) { .layout { grid-template-columns: 1fr; } }

.chart-card .panel-body { padding: 14px; }
.chart-wrap {
  position: relative;
  width: 100%;
}
canvas { max-width: 100%; }

.tooltip {
  position: absolute;
  pointer-events: none;
  background: var(--bg-elev-2);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 4px;
  font-size: 12px;
  line-height: 1.4;
  min-width: 110px;
  opacity: 0;
  transform: translate(-50%, -110%);
  transition: opacity 120ms ease;
  white-space: pre-line;
  z-index: 5;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
}

.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

details.help {
  margin-top: 24px; padding: 14px 16px;
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: 6px;
}
details.help summary {
  cursor: pointer; font-size: 12px; color: var(--text-dim);
  letter-spacing: 0.08em; text-transform: uppercase;
  user-select: none;
}
details.help summary:hover { color: var(--accent); }
details.help .content {
  margin-top: 12px; font-size: 13px; line-height: 1.7;
  color: var(--text-dim);
}
details.help .content p { margin-top: 8px; }
details.help code {
  background: var(--bg); padding: 1px 6px; border-radius: 3px;
  color: var(--accent);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
}

footer {
  margin-top: 32px; padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--text-mute); font-size: 11px; letter-spacing: 0.05em;
  text-align: center;
}

/* ================================================================
   Mobile / narrow viewport
   ================================================================ */
@media (max-width: 720px) {
  .container { padding: 14px 12px 40px; }

  header.top {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-bottom: 16px;
    padding-bottom: 12px;
  }
  header.top h1 { font-size: 18px; line-height: 1.3; }
  header.top .sub { font-size: 10px; }
  header.top .actions { flex-wrap: wrap; gap: 6px; }
  header.top .actions .btn { padding: 6px 10px; font-size: 12px; }

  .summary-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-bottom: 16px;
  }
  .card { padding: 10px 12px; }
  .card .label { font-size: 10px; margin-bottom: 4px; }
  .card .value { font-size: 17px; }
  .card .sub { font-size: 10px; }

  section.panel { margin-bottom: 14px; }
  .panel-head { padding: 10px 12px; gap: 6px; }
  .panel-head h2 { font-size: 12px; }
  .panel-body { padding: 12px; }

  .settings { grid-template-columns: 1fr; gap: 12px; }

  /* Editable tables → card layout */
  table.editable thead { display: none; }
  table.editable,
  table.editable tbody,
  table.editable tr,
  table.editable td { display: block; width: 100%; }
  table.editable tr {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    margin: 0 0 10px;
    padding: 10px 10px 6px;
    position: relative;
    padding-right: 60px;
  }
  table.editable td {
    border: none;
    padding: 4px 0;
    display: grid;
    grid-template-columns: 70px 1fr;
    gap: 8px;
    align-items: center;
    text-align: left !important;
  }
  table.editable td::before {
    content: attr(data-label);
    color: var(--text-dim);
    font-size: 11px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }
  table.editable td.num input.cell { text-align: right; }
  table.editable td input.cell,
  table.editable td select.cell {
    min-width: 0 !important;
    width: 100%;
    font-size: 14px;
    padding: 6px 8px;
  }
  table.editable td.actions-cell {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 44px;
    padding: 0;
    display: block;
  }
  table.editable td.actions-cell::before { display: none; }

  .charts-grid { grid-template-columns: 1fr; }
  canvas { height: 200px !important; }
}

@media (max-width: 380px) {
  .summary-grid { grid-template-columns: 1fr; }
}