/* 價值投資模擬 — 深色主題 */
:root {
  --bg: #0f1117;
  --bg2: #1a1d27;
  --bg3: #242836;
  --border: #2e3345;
  --text: #e1e4ed;
  --text2: #8b8fa3;
  --red: #ef4444;      /* 漲 - 紅色 */
  --green: #22c55e;    /* 跌 - 綠色 */
  --yellow: #eab308;
  --blue: #3b82f6;
  --accent: #6366f1;
  --accent2: #818cf8;
}

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

body {
  font-family: 'Noto Sans TC', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* 登入畫面 */
#login-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  gap: 20px;
}
#login-screen h1 { font-size: 2.5rem; color: var(--accent2); }
#login-screen p { color: var(--text2); font-size: 1.1rem; }
#login-screen input {
  padding: 12px 20px;
  font-size: 1.2rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--bg2);
  color: var(--text);
  width: 300px;
  text-align: center;
}
#login-screen button {
  padding: 12px 40px;
  font-size: 1.1rem;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: white;
  cursor: pointer;
  transition: background 0.2s;
}
#login-screen button:hover { background: var(--accent2); }

/* 主畫面 */
#main-screen { display: none; }

/* 頂部資訊列 */
.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 10px;
}
.top-bar .quarter-info {
  font-size: 1.4rem;
  font-weight: bold;
}
.top-bar .macro-info {
  display: flex;
  gap: 20px;
  font-size: 0.95rem;
}
.top-bar .macro-info span { color: var(--text2); }

/* 資產摘要 */
.asset-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  padding: 16px 20px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
}
.asset-card {
  background: var(--bg3);
  padding: 12px 16px;
  border-radius: 8px;
}
.asset-card .label { font-size: 0.8rem; color: var(--text2); }
.asset-card .value { font-size: 1.3rem; font-weight: bold; }
.asset-card .value.positive { color: var(--red); }
.asset-card .value.negative { color: var(--green); }

/* 主體區域 */
.main-body {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 0;
  height: calc(100vh - 180px);
}

/* 左側：股票池 */
.stock-panel {
  overflow: auto;
  border-right: 1px solid var(--border);
}
.stock-panel .panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.stock-panel .panel-header h2 { font-size: 1rem; }

/* 篩選 */
.filters {
  display: flex;
  gap: 8px;
  padding: 8px 16px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 42px;
  z-index: 10;
  flex-wrap: wrap;
}
.filters input, .filters select {
  padding: 6px 10px;
  font-size: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg3);
  color: var(--text);
}
.filters input { flex: 1; min-width: 120px; }

/* 股票表格 */
.stock-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.stock-table th {
  padding: 8px 10px;
  text-align: right;
  background: var(--bg2);
  color: var(--text2);
  font-weight: normal;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 90px;
  z-index: 5;
  cursor: pointer;
  user-select: none;
}
.stock-table th:first-child,
.stock-table th:nth-child(2) { text-align: left; }
.stock-table th:hover { color: var(--accent2); }
.stock-table th.sorted { color: var(--accent2); }

.stock-table td {
  padding: 7px 10px;
  text-align: right;
  border-bottom: 1px solid var(--border);
}
.stock-table td:first-child,
.stock-table td:nth-child(2) { text-align: left; }

.stock-table tr:hover { background: var(--bg3); }
.stock-table tr.held { background: rgba(99, 102, 241, 0.1); }

.stock-table .up { color: var(--red); }
.stock-table .down { color: var(--green); }
.stock-table .na { color: var(--text2); }

.stock-table .btn-buy, .stock-table .btn-sell {
  padding: 3px 10px;
  font-size: 0.8rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  margin: 0 2px;
}
.stock-table .btn-buy {
  background: rgba(239, 68, 68, 0.2);
  color: var(--red);
  border: 1px solid var(--red);
}
.stock-table .btn-sell {
  background: rgba(34, 197, 94, 0.2);
  color: var(--green);
  border: 1px solid var(--green);
}
.stock-table .btn-buy:hover { background: rgba(239, 68, 68, 0.4); }
.stock-table .btn-sell:hover { background: rgba(34, 197, 94, 0.4); }

/* 右側面板 */
.right-panel {
  display: flex;
  flex-direction: column;
  overflow: auto;
  background: var(--bg2);
}
.right-panel .section {
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
}
.right-panel .section h3 {
  font-size: 0.9rem;
  color: var(--text2);
  margin-bottom: 8px;
}

/* 持股列表 */
.holding-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--border);
}
.holding-item:last-child { border-bottom: none; }
.holding-item .info { flex: 1; }
.holding-item .info .sym { font-weight: bold; }
.holding-item .info .detail { font-size: 0.75rem; color: var(--text2); }
.holding-item .pnl { text-align: right; font-weight: bold; }

/* 交易紀錄 */
.trade-item {
  font-size: 0.8rem;
  padding: 4px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text2);
}
.trade-item:last-child { border-bottom: none; }
.trade-item .buy-label { color: var(--red); }
.trade-item .sell-label { color: var(--green); }

/* 下一季按鈕 */
.next-quarter-btn {
  margin: 12px 16px;
  padding: 14px;
  font-size: 1.1rem;
  font-weight: bold;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: white;
  cursor: pointer;
  transition: all 0.2s;
}
.next-quarter-btn:hover { background: var(--accent2); transform: scale(1.02); }
.next-quarter-btn:disabled { background: var(--bg3); color: var(--text2); cursor: not-allowed; transform: none; }

/* 排行榜 */
.leaderboard-item {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--border);
}
.leaderboard-item:last-child { border-bottom: none; }
.leaderboard-item .rank { width: 24px; color: var(--text2); }
.leaderboard-item .name { flex: 1; }
.leaderboard-item .ret { font-weight: bold; text-align: right; }

/* 倒數計時器 */
.countdown {
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--accent2);
  padding: 4px 12px;
  background: var(--bg3);
  border-radius: 6px;
  min-width: 100px;
  text-align: center;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* 景氣燈號 */
.light-blue { color: #3b82f6; }
.light-yellow-blue { color: #60a5fa; }
.light-green { color: #22c55e; }
.light-yellow-red { color: #f59e0b; }
.light-red { color: #ef4444; }

/* 彈窗 */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.7);
  z-index: 100;
  justify-content: center;
  align-items: center;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  width: 360px;
}
.modal h3 { margin-bottom: 16px; }
.modal label { display: block; font-size: 0.85rem; color: var(--text2); margin-bottom: 4px; }
.modal input {
  width: 100%;
  padding: 10px;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg3);
  color: var(--text);
  margin-bottom: 8px;
}
.modal .quick-btns {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
}
.modal .quick-btns button {
  padding: 4px 10px;
  font-size: 0.8rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg3);
  color: var(--text);
  cursor: pointer;
}
.modal .quick-btns button:hover { border-color: var(--accent); }
.modal .cost-preview {
  font-size: 0.9rem;
  color: var(--text2);
  margin-bottom: 12px;
  padding: 8px;
  background: var(--bg);
  border-radius: 6px;
}
.modal .modal-actions {
  display: flex;
  gap: 8px;
}
.modal .modal-actions button {
  flex: 1;
  padding: 10px;
  font-size: 1rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}
.modal .btn-confirm {
  background: var(--accent);
  color: white;
}
.modal .btn-cancel {
  background: var(--bg3);
  color: var(--text);
}

/* tabs */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
}
.tabs button {
  flex: 1;
  padding: 8px;
  font-size: 0.85rem;
  border: none;
  background: none;
  color: var(--text2);
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.tabs button.active {
  color: var(--accent2);
  border-bottom-color: var(--accent);
}

/* 結束畫面 */
.finish-screen {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  gap: 16px;
  text-align: center;
}
.finish-screen h1 { font-size: 2rem; color: var(--accent2); }
.finish-screen .final-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 20px 0;
}

/* 資產走勢（簡易 CSS bar chart） */
.chart-bar {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 100px;
  padding: 8px 0;
}
.chart-bar .bar {
  flex: 1;
  background: var(--accent);
  border-radius: 2px 2px 0 0;
  min-width: 4px;
  position: relative;
}
.chart-bar .bar:hover {
  background: var(--accent2);
}

/* Toast 通知 */
.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  padding: 12px 24px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.9rem;
  z-index: 200;
  animation: fadeInUp 0.3s;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateX(-50%) translateY(10px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* 響應式 */
@media (max-width: 900px) {
  .main-body {
    grid-template-columns: 1fr;
  }
  .right-panel {
    max-height: 300px;
  }
}