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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Microsoft JhengHei", sans-serif;
  background: #0f1117;
  color: #e2e8f0;
  min-height: 100vh;
}

header {
  background: linear-gradient(135deg, #1a1f2e 0%, #16213e 100%);
  border-bottom: 1px solid #2d3748;
  padding: 16px 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo { display: flex; align-items: center; gap: 12px; }
.logo-icon { font-size: 32px; }
.logo h1 { font-size: 20px; font-weight: 700; color: #63b3ed; }
.logo p { font-size: 12px; color: #718096; }
.header-time { font-size: 13px; color: #a0aec0; }

.ticker-wrap {
  background: #13192b;
  border-bottom: 1px solid #2d3748;
  padding: 4px 0;
}

main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

.section { margin-bottom: 40px; }

.section-title {
  font-size: 15px;
  font-weight: 600;
  color: #90cdf4;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid #2d3748;
}

/* 複利計算器 */
.calc-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 20px;
  align-items: start;
}

.calc-inputs {
  background: #1a1f2e;
  border: 1px solid #2d3748;
  border-radius: 12px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.calc-group label {
  display: block;
  font-size: 12px;
  color: #90cdf4;
  margin-bottom: 8px;
  font-weight: 600;
}

.calc-input-wrap {
  display: flex;
  align-items: center;
  background: #0f1117;
  border: 1px solid #4a5568;
  border-radius: 8px;
  overflow: hidden;
}

.calc-unit {
  padding: 0 10px;
  font-size: 12px;
  color: #718096;
  background: #1a1f2e;
  border-right: 1px solid #4a5568;
  height: 38px;
  display: flex;
  align-items: center;
}

.calc-unit-right {
  padding: 0 10px;
  font-size: 12px;
  color: #718096;
  background: #1a1f2e;
  border-left: 1px solid #4a5568;
  height: 38px;
  display: flex;
  align-items: center;
}

.calc-input-wrap input[type="number"] {
  flex: 1;
  background: transparent;
  border: none;
  color: #e2e8f0;
  font-size: 14px;
  padding: 0 12px;
  height: 38px;
  outline: none;
  width: 100%;
}

.calc-presets {
  display: flex;
  gap: 6px;
  margin-top: 8px;
}

.calc-presets button {
  flex: 1;
  padding: 5px 0;
  background: #1a1f2e;
  border: 1px solid #4a5568;
  border-radius: 6px;
  color: #a0aec0;
  font-size: 11px;
  cursor: pointer;
  transition: all 0.2s;
}

.calc-presets button:hover {
  border-color: #63b3ed;
  color: #63b3ed;
}

.calc-slider {
  width: 100%;
  accent-color: #63b3ed;
  margin-top: 4px;
}

.calc-select {
  width: 100%;
  background: #0f1117;
  border: 1px solid #4a5568;
  border-radius: 8px;
  color: #e2e8f0;
  font-size: 14px;
  padding: 8px 12px;
  outline: none;
}

.calc-results {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.calc-result-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.result-card {
  background: #1a1f2e;
  border: 1px solid #2d3748;
  border-radius: 10px;
  padding: 14px 16px;
}

.result-card.highlight {
  border-color: #63b3ed;
  background: #1e3a5f;
}

.result-card.green {
  border-color: #48bb78;
  background: #1a2e22;
}

.result-label {
  font-size: 12px;
  color: #718096;
  margin-bottom: 6px;
}

.result-value {
  font-size: 18px;
  font-weight: 700;
  color: #e2e8f0;
}

.result-card.highlight .result-value { color: #90cdf4; }
.result-card.green .result-value { color: #68d391; }

#compound-chart {
  background: #1a1f2e;
  border: 1px solid #2d3748;
  border-radius: 12px;
  padding: 16px;
}

/* 基金查詢 */
.fund-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.fund-tab {
  padding: 7px 16px;
  background: #1a1f2e;
  border: 1px solid #2d3748;
  border-radius: 8px;
  color: #a0aec0;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}

.fund-tab:hover { border-color: #63b3ed; color: #63b3ed; }
.fund-tab.active { background: #2b4c7e; border-color: #63b3ed; color: #fff; }

.fund-frame-wrap {
  border: 1px solid #2d3748;
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
}

#fund-iframe { display: block; }

.fund-blocked {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  gap: 16px;
  background: #1a1f2e;
}

.fund-blocked p {
  color: #a0aec0;
  font-size: 14px;
}

.fund-open-btn {
  padding: 10px 28px;
  background: #2b6cb0;
  border-radius: 8px;
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: background 0.2s;
}

.fund-open-btn:hover { background: #3182ce; }

/* 經濟日曆佈局 */
.econ-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 20px;
  align-items: start;
}

.econ-guide {
  background: #1a1f2e;
  border: 1px solid #2d3748;
  border-radius: 12px;
  padding: 16px;
}

.econ-guide-title {
  font-size: 13px;
  font-weight: 600;
  color: #90cdf4;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid #2d3748;
}

.econ-item {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
  align-items: flex-start;
}

.econ-item:last-child { margin-bottom: 0; }

.econ-code {
  font-size: 11px;
  font-weight: 700;
  color: #63b3ed;
  background: #1e3a5f;
  border-radius: 4px;
  padding: 2px 6px;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 2px;
}

.econ-text {
  font-size: 12px;
  color: #a0aec0;
  line-height: 1.5;
}

.econ-text strong {
  color: #e2e8f0;
  display: block;
  margin-bottom: 2px;
}

/* 可展開指標說明 */
.guide-details {
  background: #1a1f2e;
  border: 1px solid #2d3748;
  border-radius: 12px;
  overflow: hidden;
}

.guide-summary {
  padding: 14px 20px;
  font-size: 14px;
  font-weight: 600;
  color: #90cdf4;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.guide-summary::-webkit-details-marker { display: none; }
.guide-summary::after { content: '▼'; font-size: 10px; margin-left: auto; color: #718096; }
details[open] .guide-summary::after { content: '▲'; }

.guide-details .index-guide {
  padding: 0 20px 20px;
}

/* 指標說明 */
.index-guide {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.guide-group-title {
  font-size: 13px;
  font-weight: 600;
  color: #90cdf4;
  margin-bottom: 10px;
}

.guide-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}

.guide-card {
  background: #1a1f2e;
  border: 1px solid #2d3748;
  border-radius: 10px;
  padding: 14px 16px;
  transition: border-color 0.2s;
}

.guide-card:hover {
  border-color: #4a5568;
}

.guide-code {
  font-size: 16px;
  font-weight: 700;
  color: #63b3ed;
  margin-bottom: 4px;
  font-variant-numeric: tabular-nums;
}

.guide-name {
  font-size: 13px;
  font-weight: 600;
  color: #e2e8f0;
  margin-bottom: 6px;
}

.guide-desc {
  font-size: 12px;
  color: #718096;
  line-height: 1.6;
}

.chart-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 7px 16px;
  background: #1a1f2e;
  border: 1px solid #2d3748;
  border-radius: 8px;
  color: #a0aec0;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}

.tab-btn:hover { border-color: #63b3ed; color: #63b3ed; }
.tab-btn.active { background: #2b4c7e; border-color: #63b3ed; color: #fff; }

#chart-container {
  background: #1a1f2e;
  border: 1px solid #2d3748;
  border-radius: 12px;
  overflow: hidden;
}

#chart-iframe {
  display: block;
  width: 100%;
  height: 500px;
  border: none;
}

.news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.news-col {
  background: #1a1f2e;
  border: 1px solid #2d3748;
  border-radius: 12px;
  overflow: hidden;
}

.news-col-title {
  padding: 14px 16px;
  font-size: 13px;
  font-weight: 600;
  color: #90cdf4;
  border-bottom: 1px solid #2d3748;
}

.commentary-box {
  background: #1a1f2e;
  border: 1px solid #2d3748;
  border-radius: 12px;
  padding: 20px;
}

.commentary-item {
  border-bottom: 1px solid #2d3748;
  padding: 14px 0;
}
.commentary-item:last-child { border-bottom: none; }
.commentary-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.commentary-item-date { font-size: 12px; color: #718096; }

.delete-btn {
  font-size: 11px;
  color: #fc8181;
  background: none;
  border: 1px solid #fc8181;
  border-radius: 4px;
  padding: 2px 8px;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.2s;
}
.delete-btn:hover { opacity: 1; }
.commentary-item-text { font-size: 14px; color: #e2e8f0; line-height: 1.7; white-space: pre-wrap; }

.add-commentary {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #2d3748;
}

.add-commentary textarea {
  width: 100%;
  background: #0f1117;
  border: 1px solid #4a5568;
  border-radius: 8px;
  color: #e2e8f0;
  padding: 12px;
  font-size: 14px;
  font-family: inherit;
  resize: vertical;
  min-height: 100px;
  outline: none;
}

.add-commentary textarea:focus { border-color: #63b3ed; }

.commentary-actions { margin-top: 10px; }

.commentary-actions button {
  padding: 8px 24px;
  background: #2b6cb0;
  border: none;
  border-radius: 8px;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.commentary-actions button:hover { background: #3182ce; }

footer {
  text-align: center;
  padding: 24px;
  color: #4a5568;
  font-size: 12px;
  border-top: 1px solid #2d3748;
}

@media (max-width: 768px) {
  main { padding: 16px; }
  .news-grid { grid-template-columns: 1fr; }
  .econ-layout { grid-template-columns: 1fr; }
  .calc-layout { grid-template-columns: 1fr; }
  .calc-result-cards { grid-template-columns: 1fr 1fr; }
}