:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --surface: #ffffff;
  --text: #18202a;
  --muted: #6b7280;
  --line: #d9e0e7;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --danger: #b91c1c;
  --warn: #92400e;
  --hit: #ecfdf5;
  --landmine: #fff7ed;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Microsoft JhengHei", "Noto Sans TC", Arial, sans-serif;
  font-size: 15px;
}

.topbar {
  background: #083344;
  color: white;
  padding: 14px 20px;
  border-bottom: 4px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.topbar-left { flex: 1; min-width: 0; }
.topbar h1 { margin: 0 0 4px; font-size: 22px; letter-spacing: 0; }
.topbar p { margin: 0; color: #cbd5e1; font-size: 13px; }
.topbar-tabs { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.tab-btn {
  background: transparent;
  color: #94a3b8;
  border: 1px solid transparent;
  padding: 7px 14px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.tab-btn:hover { background: rgba(255,255,255,0.08); color: white; }
.tab-btn.active { background: var(--accent); color: white; border-color: var(--accent-dark); }

.page { display: none; }
.page.active { display: grid; }

.layout {
  display: grid;
  grid-template-columns: minmax(280px, 420px) minmax(0, 1fr);
  gap: 16px;
  padding: 16px;
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
  box-sizing: border-box;
}
.history-layout { grid-template-columns: 220px 1fr; }
.analysis-layout { grid-template-columns: 1fr; }

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  min-width: 0;
}
.panel.wide { grid-column: 1 / -1; }
.panel h2 { margin: 0 0 12px; font-size: 18px; }
.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.section-title h2 { margin: 0; }

.form-grid, .settle-grid { display: grid; gap: 10px; }
.form-grid label { display: grid; gap: 5px; color: var(--muted); font-size: 13px; }

input, button { font: inherit; border-radius: 6px; }
input {
  width: 100%;
  border: 1px solid var(--line);
  padding: 9px 10px;
  background: white;
  color: var(--text);
}
button {
  border: 0;
  background: var(--accent);
  color: white;
  padding: 10px 14px;
  cursor: pointer;
  font-weight: 600;
}
button:hover { background: var(--accent-dark); }
button:disabled { background: #94a3b8; cursor: not-allowed; }

.message { min-height: 24px; margin-top: 12px; color: var(--muted); }
.message.success { color: var(--accent-dark); }
.message.error { color: var(--danger); }

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}
table { width: 100%; border-collapse: collapse; min-width: 520px; }
th, td {
  border-bottom: 1px solid var(--line);
  padding: 8px 9px;
  text-align: right;
  white-space: nowrap;
}
th { background: #eef2f7; color: #334155; font-size: 13px; }
td:first-child, th:first-child { text-align: center; }
.number-cell { font-weight: 700; color: #0f172a; }

.draft-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.draft-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 6px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #f8fafc;
  min-width: 0;
}
.draft-cell .num { font-weight: 700; font-size: 14px; color: var(--text); }
.draft-cell input {
  width: 100%;
  max-width: 100px;
  text-align: right;
  padding: 5px 6px;
}
.draft-cell .status { font-size: 11px; color: var(--muted); }
.draft-cell.recognized .status { color: var(--accent-dark); }
.draft-cell.partial .status { color: var(--warn); }

.landmine { background: var(--landmine); color: var(--warn); }
.hit { background: var(--hit); }

.summary { display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: 13px; }
.summary span { border: 1px solid var(--line); border-radius: 999px; padding: 5px 9px; background: #f8fafc; }

.settle-grid { grid-template-columns: repeat(5, 1fr); align-items: end; }
.settle-grid button { grid-column: 1 / -1; }
.result-box { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 12px 20px; color: var(--muted); align-items: baseline; }
.result-box .result-main { font-size: 16px; color: var(--text); }
.result-box .result-main strong { font-size: 22px; }
.result-box .result-detail { font-size: 14px; }
.result-box .winning-numbers { font-size: 14px; }
.result-box.profit .result-main strong { color: var(--accent-dark); }
.result-box.loss .result-main strong { color: var(--danger); }
.profit { color: var(--accent-dark); font-weight: 700; }
.loss { color: var(--danger); font-weight: 700; }

.history { display: grid; gap: 8px; }
.history-item {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px;
  align-items: center;
  width: 100%;
  background: #f8fafc;
  color: var(--text);
  border: 1px solid var(--line);
  text-align: left;
  cursor: pointer;
}
.history-item:hover { background: #eef2f7; }
.history-item.selected { background: #d1fae5; border-color: var(--accent); }
.muted { color: var(--muted); }

.analysis-controls { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; }
.analysis-controls label { display: grid; gap: 5px; color: var(--muted); font-size: 13px; }
.analysis-controls input[type="date"] {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 9px 10px;
  font: inherit;
  color: var(--text);
}
.analysis-controls button { min-width: 80px; }

textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 9px 10px;
  resize: vertical;
  font: inherit;
}
.ocr-status {
  min-height: 24px;
  margin: 0 0 10px;
  color: var(--muted);
  line-height: 1.5;
}
.ocr-status.manual,
.ocr-status.partial { color: var(--warn); }
.ocr-status.recognized { color: var(--accent-dark); }

/* 綜合分析結果卡片 */
.analysis-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
  padding: 4px 0;
}
.analysis-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #f8fafc;
}
.analysis-card .card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.analysis-card .card-label {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 10px;
}
.analysis-card .card-profit {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 4px;
}
.analysis-card .card-profit.positive { color: var(--accent-dark); }
.analysis-card .card-profit.negative { color: var(--danger); }
.analysis-card .card-winrate {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 4px;
}
.analysis-card .card-avgcost {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 10px;
}
.analysis-card .card-desc {
  font-size: 12px;
  color: #64748b;
  line-height: 1.5;
  background: white;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px;
}

/* 模擬計算 */
.simulation-layout {
  grid-template-columns: 220px 1fr;
  gap: 10px;
  align-items: start;
}
.sim-header {
  grid-column: 1 / -1;
}
.sim-history {
  grid-column: 1;
}
.sim-detail {
  grid-column: 2;
}
.sim-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}
.sim-controls label {
  font-size: 13px;
}
.sim-algos {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.sim-btn {
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #f1f5f9;
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: all 0.15s;
}
.sim-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.sim-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  color: white;
  border-color: var(--accent);
}
.sim-history-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 60vh;
  overflow-y: auto;
}
.sim-history-item {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.sim-history-item:hover {
  border-color: var(--accent);
}
.sim-history-item.selected {
  background: var(--accent-bg);
  border-color: var(--accent);
}
.sim-history-item .sim-label { font-weight: 600; }
.sim-history-item .sim-profit { font-size: 12px; }
.sim-history-item .sim-profit.positive { color: var(--accent-dark); }
.sim-history-item .sim-profit.negative { color: var(--danger); }
.sim-detail-info {
  margin-bottom: 12px;
}
.sim-detail-info h3 { margin: 0 0 8px; font-size: 15px; }
.sim-detail-meta {
  font-size: 12px;
  color: var(--muted);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.sim-detail-meta span {}
.sim-rec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.sim-rec-table th {
  background: var(--line);
  padding: 5px 8px;
  text-align: left;
  font-weight: 600;
}
.sim-rec-table td {
  padding: 4px 8px;
  border-bottom: 1px solid var(--line);
}
.sim-rec-table tr.hit-row { background: #e8f5e9; }
.sim-rec-table .num { font-weight: 600; }
.sim-rec-table .cars { color: var(--accent-dark); font-weight: 600; }


@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; padding: 10px; }
  .history-layout { grid-template-columns: 1fr; }
  .simulation-layout { grid-template-columns: 1fr; }
  .sim-history { grid-column: 1; }
  .sim-detail { grid-column: 1; }
  .topbar { padding: 14px 16px; }
  .section-title { align-items: flex-start; flex-direction: column; }
  .settle-grid { grid-template-columns: repeat(5, minmax(44px, 1fr)); }
}

.orig-bets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}
.bet-num {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  background: #f0f4f8;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 13px;
  min-width: 40px;
}
.bet-num small {
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
}

/* 歷史期別 原始下注表格 */
.orig-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.orig-table th {
  background: #eef2f7; color: #334155; font-size: 12px;
  padding: 8px 10px; text-align: left; font-weight: 600;
  border-bottom: 2px solid var(--line);
}
.orig-table td {
  padding: 7px 10px; border-bottom: 1px solid var(--line);
  color: var(--text);
}
.orig-table tr.excluded { background: #fef9c3; }
.orig-table tr.excluded td { color: #713f12; }
.orig-table .rank { color: var(--muted); font-size: 12px; width: 40px; }
.orig-table .num { font-weight: 700; font-size: 15px; width: 50px; }
.orig-table .amt { text-align: right; font-variant-numeric: tabular-nums; }
.orig-table .bar-cell { width: 120px; }
.orig-table .bar-fill { height: 6px; background: var(--accent); border-radius: 3px; min-width: 2px; }
.orig-table tr.hit { background: #ecfdf5; }
.orig-table tr.hit .num { color: var(--accent-dark); }
.orig-table .hit-yes { background: #22c55e; color: #fff; border-radius: 4px; padding: 2px 8px; font-size: 12px; font-weight: 700; }
.orig-table .hit-no { color: #cbd5e1; }
.sim-summary { margin-top: 10px; padding: 10px 14px; background: #f8fafc; border: 1px solid var(--line); border-radius: 8px; display: flex; flex-wrap: wrap; gap: 16px 24px; align-items: center; }
.sim-summary .sim-sum-label { font-size: 13px; color: var(--muted); }
.sim-summary .sim-sum-value { font-size: 15px; font-weight: 700; color: var(--text); }
.sim-summary .sim-sum-value.positive { color: var(--accent-dark); }
.sim-summary .sim-sum-value.negative { color: var(--danger); }

/* settle-cell (settle-grid 內的每格) */
.settle-cell {
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px 4px 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.settle-cell .sc {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}
.settle-cell .sb {
  font-size: 11px;
  color: var(--muted);
}
.settle-cell .sbbar {
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  width: 0%;
  align-self: flex-start;
  margin-top: 2px;
}

/* settle-info-row: inline winning-number inputs before the settle button */
.settle-info-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.settle-info-row .settle-label {
  font-size: 14px;
  color: var(--muted);
  white-space: nowrap;
}
.settle-win-inputs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.settle-win-num {
  width: 52px;
  padding: 6px 4px;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
  color: var(--text);
  background: #fff;
}
.settle-win-num:focus {
  outline: 2px solid var(--accent);
  border-color: var(--accent);
}

/* ── 策略試算 Lab ────────────────────────────────────── */
.strategy-lab-layout {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.lab-header {
  padding: 16px;
}
.lab-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
  margin-top: 12px;
}
.lab-controls label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}
.lab-controls input,
.lab-controls select {
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
  min-width: 100px;
}
.lab-controls input[type="number"] {
  width: 80px;
  min-width: unset;
}
#labCalcBtn {
  padding: 6px 20px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
}
#labCalcBtn:hover {
  opacity: 0.85;
}
.lab-draw-info {
  margin-top: 10px;
  padding: 8px 12px;
  background: var(--bg2);
  border-radius: 6px;
  font-size: 13px;
  color: var(--muted);
}
.lab-recommend {
  padding: 16px;
}
.lab-table-wrap {
  overflow-x: auto;
}
.lab-table-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
}
.lab-table-col-header {
  padding: 4px 8px;
}
.lab-table-col-header:last-child {
  border-left: 1px solid var(--line);
}
.lab-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.lab-table th {
  background: var(--bg2);
  padding: 5px 6px;
  text-align: center;
  font-weight: 500;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}
.lab-table td {
  padding: 4px 6px;
  text-align: center;
  border-bottom: 1px solid var(--bg2);
}
.lab-table tr:hover {
  background: var(--bg2);
}
.lab-table .num {
  font-weight: 600;
}
.lab-table .amt {
  color: var(--muted);
  font-size: 12px;
}
.lab-table .cars {
  font-weight: 500;
}
.landmine-row td {
  background: #fff5f5;
  color: #999;
}
.landmine-star {
  color: #e74c3c;
  font-size: 14px;
}
.lab-settle {
  padding: 16px;
}
.lab-win-inputs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 16px;
}
.lab-win-inputs label {
  font-size: 13px;
  color: var(--muted);
}
.settle-win-row {
  display: flex;
  gap: 8px;
}
.settle-win-row input {
  width: 56px;
  padding: 6px 4px;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
}
#labSettleBtn {
  padding: 8px 20px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
}
#labSettleBtn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.lab-settle-result {
  margin-top: 16px;
}
.lab-settle-header {
  margin-bottom: 12px;
  font-size: 14px;
}
.lab-settle-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.lab-settle-card {
  padding: 16px;
  border-radius: 10px;
  background: var(--bg2);
  border: 1px solid var(--line);
}
.lab-settle-card.profit {
  border-color: #27ae60;
  background: #f0fff4;
}
.lab-settle-card.loss {
  border-color: #e74c3c;
  background: #fff5f5;
}
.lab-settle-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
}
.lab-settle-main {
  font-size: 18px;
  margin-bottom: 8px;
}
.lab-settle-detail {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 10px;
}
.lab-settle-history {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
  padding-top: 8px;
  border-top: 1px solid var(--line);
}