/* Covered Call 權利金觀察站 —— 淡色紙感主題（版面沿用 ETF 收益平準金觀察站），強調色維持紫色 */
:root {
  color-scheme: light;
  --page: #f2f0f7;
  --paper: #fdfcfb;
  --paper-soft: #eae6f5;
  --ink: #1c1a2e;
  --ink-secondary: #4d4868;
  --ink-muted: #7a7591;
  --line: #ddd8ec;
  --baseline: #c7c1de;

  /* 品牌強調色（紫），刻意選 categorical 六色沒用到的 slot 7，跟圖表資料色不會混淆 */
  --brand: #4a3aa7;
  --brand-dark: #362a80;
  --brand-soft: #eae6f9;
  --accent: #4a3aa7;
  --accent-soft: #eae6f9;

  /* 六類收益組成，固定順序對應 categorical slot 1-6（已跑過 validator，跟主題色無關，不隨主題換） */
  --series-dividend: #2a78d6;
  --series-interest: #eb6834;
  --series-equalization: #1baf7a;
  --series-capital-gain: #eda100;
  --series-premium: #e87ba4;
  --series-other: #008300;

  --radius: 28px;
  --radius-sm: 14px;
  --shadow: 0 26px 70px rgba(28, 26, 46, 0.13);
  --shadow-sm: 0 10px 26px rgba(28, 26, 46, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(color-mix(in srgb, var(--line) 48%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--line) 48%, transparent) 1px, transparent 1px),
    var(--page);
  background-size: 72px 72px;
  color: var(--ink);
  font-family:
    "Segoe UI",
    "Noto Sans TC",
    "PingFang TC",
    "Microsoft JhengHei",
    sans-serif;
  line-height: 1.65;
}

a {
  color: var(--brand);
}

:focus-visible {
  outline: 3px solid var(--brand);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--ink);
  color: var(--paper);
  font-weight: 700;
  transform: translateY(-150%);
  transition: transform 0.15s ease;
}
.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  padding: 32px 24px 8px;
  max-width: 1000px;
  margin: 0 auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.2rem;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(150deg, var(--brand), var(--brand-dark));
  color: #fff;
  font-weight: 800;
  box-shadow: var(--shadow-sm);
}
.header-tags {
  display: flex;
  gap: 8px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  flex-wrap: wrap;
}
.header-tags li {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--brand-dark);
  background: var(--brand-soft);
  padding: 4px 11px;
  border-radius: 999px;
}
.header-sub {
  margin: 10px 0 0;
  color: var(--ink-secondary);
  font-size: 0.95rem;
}

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 8px 24px 48px;
}

.intro {
  padding: 22px 0 10px;
}
.intro h1 {
  font-size: clamp(1.6rem, 1.1rem + 1.8vw, 2.3rem);
  margin: 0 0 14px;
  letter-spacing: -0.01em;
}
.intro p {
  color: var(--ink-secondary);
  max-width: 66ch;
}

.fund-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  align-items: stretch;
  gap: 22px;
  margin: 22px 0 40px;
}

.fund-card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow: hidden;
}
.fund-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 5px;
  background: linear-gradient(90deg, var(--brand), var(--series-premium));
}

.fund-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.fund-code {
  display: inline-block;
  font-weight: 800;
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  color: #fff;
  background: var(--brand);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
}
.fund-name {
  margin: 0;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}
.fund-issuer {
  color: var(--ink-muted);
  font-size: 0.85rem;
}

.refresh-btn {
  flex: none;
  border: none;
  background: var(--brand);
  color: #fff;
  border-radius: 999px;
  padding: 9px 16px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: background 0.15s ease, transform 0.15s ease;
}
.refresh-btn:hover {
  background: var(--brand-dark);
  transform: translateY(-1px);
}
.refresh-btn:disabled {
  opacity: 0.55;
  cursor: progress;
  transform: none;
}

.loading-note,
.empty-note {
  color: var(--ink-muted);
  font-size: 0.9rem;
}
.error-note {
  color: var(--series-interest);
  font-size: 0.88rem;
  background: color-mix(in srgb, var(--series-interest) 12%, transparent);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}

.hero-stat {
  display: flex;
  align-items: center;
  gap: 14px;
  background: linear-gradient(135deg, var(--brand-soft), transparent 70%);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin: -2px 0 2px;
}
.hero-stat .value {
  font-size: 46px;
  font-weight: 800;
  line-height: 1;
  color: var(--brand-dark);
}
.hero-stat .label {
  color: var(--ink-secondary);
  font-size: 0.85rem;
  max-width: 14ch;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  color: var(--ink-secondary);
  font-size: 0.85rem;
}
.meta-row strong {
  color: var(--ink);
}

.stack-bar {
  display: flex;
  width: 100%;
  height: 24px;
  border-radius: 7px;
  overflow: hidden;
  background: var(--paper-soft);
  box-shadow: inset 0 0 0 1px var(--line);
}
.stack-bar .segment {
  height: 100%;
}
.stack-bar .segment + .segment {
  border-left: 2px solid var(--paper);
}

.composition-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}
.composition-table caption {
  text-align: left;
  color: var(--ink-muted);
  font-size: 0.78rem;
  margin-bottom: 8px;
}
.composition-table th {
  text-align: right;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.composition-table tr:hover td {
  background: var(--paper-soft);
}
.composition-table td {
  padding: 6px 4px;
  border-top: 1px solid var(--line);
  transition: background 0.1s ease;
}
.composition-table td:first-child {
  border-radius: 8px 0 0 8px;
}
.composition-table td:last-child {
  text-align: right;
  font-variant-numeric: tabular-nums;
  border-radius: 0 8px 8px 0;
}
.swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  margin-right: 8px;
}
.premium-row td {
  font-weight: 800;
}
.premium-row .swatch {
  width: 12px;
  height: 12px;
}

.source-line {
  font-size: 0.78rem;
  color: var(--ink-muted);
  word-break: break-all;
}

.fund-note {
  color: var(--ink-muted);
  font-size: 0.78rem;
  margin: 0;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 10px;
  padding: 26px 16px;
  border: 1.5px dashed var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper-soft);
}
.empty-state .empty-icon {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-weight: 800;
  font-size: 1.1rem;
}
.empty-state p {
  margin: 0;
  color: var(--ink-secondary);
  font-size: 0.88rem;
  max-width: 32ch;
}

.paste-panel {
  border-top: 1px dashed var(--line);
  padding-top: 14px;
}
.paste-panel summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--brand-dark);
}
.paste-panel[open] summary {
  margin-bottom: 4px;
}
.paste-steps {
  color: var(--ink-secondary);
  font-size: 0.85rem;
  padding-left: 20px;
  margin: 10px 0;
}
.paste-steps li + li {
  margin-top: 4px;
}
.paste-steps code {
  background: var(--paper-soft);
  padding: 1px 5px;
  border-radius: 4px;
}
.curl-textarea {
  width: 100%;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--paper-soft);
  color: var(--ink);
  padding: 10px;
  resize: vertical;
}
.curl-textarea:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 1px;
}
.paste-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
}
.paste-status {
  font-size: 0.82rem;
  color: var(--ink-muted);
}
.paste-privacy-note {
  font-size: 0.76rem;
  color: var(--ink-muted);
  margin: 10px 0 0;
}

.reading-section {
  padding-top: 10px;
}
.reading-section h2 {
  letter-spacing: -0.01em;
}
.reading-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-top: 16px;
}
.reading-columns article {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 18px 18px 16px;
  box-shadow: var(--shadow-sm);
}
.reading-mark {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-weight: 800;
  font-size: 0.85rem;
  margin-bottom: 10px;
}
.reading-columns h3 {
  margin: 0 0 6px;
  font-size: 0.98rem;
}
.reading-columns p {
  margin: 0;
  color: var(--ink-secondary);
  font-size: 0.86rem;
}

footer {
  max-width: 1000px;
  margin: 0 auto;
  padding: 28px 24px 48px;
  color: var(--ink-muted);
  font-size: 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-top: 1px solid var(--line);
  margin-top: 12px;
}
footer p {
  margin: 0;
  font-weight: 700;
  color: var(--ink-secondary);
}

@media (max-width: 480px) {
  .fund-card-head {
    flex-direction: column;
  }
  .hero-stat .value {
    font-size: 38px;
  }
}