:root {
  color-scheme: light;
  --bg: #f4f6f3;
  --surface: #ffffff;
  --surface-soft: #eef2ee;
  --ink: #17231d;
  --muted: #526158;
  --border: #ccd6cf;
  --accent: #175b45;
  --accent-dark: #0d4936;
  --exact-bg: #e2f2e9;
  --exact-ink: #12513c;
  --near-bg: #fff0bd;
  --near-ink: #684900;
  --watch-bg: #ffe8dc;
  --watch-ink: #8a2d10;
  --incomplete-bg: #e8ecef;
  --incomplete-ink: #3f4a53;
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --shadow: 0 0.125rem 0.75rem rgba(23, 35, 29, 0.07);
}

* {
  box-sizing: border-box;
}

html {
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body {
  min-width: 20rem;
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  line-height: 1.6;
}

a {
  color: var(--accent-dark);
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-thickness: 0.125rem;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 0.2rem solid #166b52;
  outline-offset: 0.2rem;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.25;
}

h1 {
  margin-bottom: 0.5rem;
  font-size: clamp(1.75rem, 7vw, 2.5rem);
}

h2 {
  margin-bottom: 0.5rem;
  font-size: clamp(1.35rem, 5vw, 1.75rem);
}

h3 {
  margin-bottom: 0.25rem;
  font-size: 1.15rem;
}

button,
input,
summary,
.button-link,
.site-header nav a,
.summary-card {
  min-height: 44px;
}

button,
input {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font: inherit;
}

button {
  padding: 0.6rem 1rem;
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  cursor: pointer;
}

input {
  max-width: 100%;
  padding: 0.55rem 0.75rem;
  background: #ffffff;
  color: var(--ink);
}

.shell {
  width: min(calc(100% - 2rem), 70rem);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.65rem 1rem;
  transform: translateY(-150%);
  border-radius: var(--radius-sm);
  background: var(--ink);
  color: #ffffff;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.96);
}

.header-inner {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-block: 0.75rem;
}

.brand {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  align-self: flex-start;
  gap: 0.625rem;
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 800;
  text-decoration: none;
}

.page a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
}

.brand-mark {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #ffffff;
}

.site-header nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.25rem;
}

.site-header nav a {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-inline: 0.5rem;
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
}

.site-header nav a[aria-current="page"] {
  background: var(--surface-soft);
  color: var(--accent-dark);
}

.page {
  padding-block: 1.5rem 3rem;
}

.site-footer {
  padding-block: 1rem 2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.875rem;
}

.site-footer p {
  margin: 0;
}

.eyebrow {
  margin-bottom: 0.25rem;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.secondary,
.symbol {
  color: var(--muted);
}

.symbol {
  margin-bottom: 0.125rem;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.summary-panel,
.stock-hero,
.date-picker {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1rem;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.summary-panel p,
.stock-hero p {
  margin-bottom: 0;
}

.screening-date {
  margin-bottom: 0.25rem;
  font-size: 1.25rem;
  font-weight: 750;
  font-variant-numeric: tabular-nums;
}

.summary-total {
  display: flex;
  align-items: baseline;
  gap: 0.375rem;
}

.summary-total strong {
  color: var(--accent-dark);
  font-size: 2.25rem;
  line-height: 1;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.summary-card {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.75rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--ink);
  text-decoration: none;
}

.summary-card span {
  overflow-wrap: anywhere;
}

.summary-card strong {
  font-size: 1.5rem;
  font-variant-numeric: tabular-nums;
}

.summary-exact,
.status-exact,
.status-pass,
.count-pass {
  background: var(--exact-bg);
  color: var(--exact-ink);
}

.summary-near,
.status-near,
.count-near {
  background: var(--near-bg);
  color: var(--near-ink);
}

.summary-watch,
.status-watch,
.status-fail,
.count-fail {
  background: var(--watch-bg);
  color: var(--watch-ink);
}

.summary-incomplete,
.status-incomplete,
.status-unavailable,
.count-unavailable {
  background: var(--incomplete-bg);
  color: var(--incomplete-ink);
}

.status-chip {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 800;
  white-space: nowrap;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.section-heading h2,
.section-heading p {
  margin-bottom: 0;
}

.section-count {
  flex: none;
  color: var(--muted);
  font-weight: 700;
}

.result-section,
.changes-section,
.criteria-section,
.history-section,
.trends-section,
.category-guide {
  margin-top: 2rem;
  scroll-margin-top: 1rem;
}

.stock-list,
.criteria-list,
.trend-list {
  display: grid;
  gap: 0.75rem;
}

.stock-card,
.criterion-card,
.trend-card,
.rule-card,
.health-item {
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.stock-card {
  padding: 1rem;
  border-left-width: 0.3rem;
}

.stock-exact {
  border-left-color: var(--exact-ink);
}

.stock-near {
  border-left-color: #ad7b00;
}

.stock-watch {
  border-left-color: var(--watch-ink);
}

.stock-incomplete {
  border-left-color: var(--incomplete-ink);
}

.stock-card-header,
.criterion-card header,
.change-heading {
  display: flex;
  min-width: 0;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.stock-card-header > div,
.criterion-card header h3 {
  min-width: 0;
  overflow-wrap: anywhere;
}

.criterion-counts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  margin: 0.75rem 0;
  padding: 0;
  color: var(--muted);
  font-size: 0.875rem;
  list-style: none;
}

.gap-list,
.change-list,
.timeline,
.trend-card ol,
.source-details ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.gap-list {
  display: grid;
  gap: 0.5rem;
  margin-block: 0.75rem;
}

.gap-list li {
  display: grid;
  padding: 0.65rem;
  border-radius: var(--radius-sm);
  background: var(--surface-soft);
}

.gap-list span {
  color: var(--muted);
}

.all-pass {
  margin-block: 0.75rem;
  color: var(--exact-ink);
  font-weight: 700;
}

.card-change {
  margin-block: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.card-change .eyebrow {
  display: block;
}

.button-link,
.back-link {
  display: inline-flex;
  align-items: center;
  font-weight: 750;
}

.button-link {
  justify-content: center;
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  text-align: center;
  text-decoration: none;
}

.back-link {
  margin-bottom: 1rem;
}

.group-empty,
.empty-state {
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--muted);
}

.group-empty {
  padding: 1rem;
}

.empty-state {
  padding: 2rem 1rem;
  text-align: center;
}

.empty-state h1,
.empty-state h2 {
  color: var(--ink);
}

.empty-icon {
  display: inline-grid;
  width: 3rem;
  height: 3rem;
  margin-bottom: 0.75rem;
  place-items: center;
  border-radius: 50%;
  background: var(--surface-soft);
  color: var(--accent-dark);
  font-size: 1.5rem;
  font-weight: 800;
}

.change-list {
  display: grid;
  gap: 0.625rem;
}

.change-item {
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.change-item p {
  margin-bottom: 0.25rem;
}

.transition-label {
  color: var(--accent-dark);
  font-size: 0.875rem;
  font-weight: 800;
}

.category-change {
  font-weight: 750;
}

.change-rule_boundary {
  border-left: 0.3rem solid var(--incomplete-ink);
}

.detail-counts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
}

.detail-counts li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-sm);
}

.detail-counts strong {
  font-size: 1.25rem;
}

.streak-callout,
.operation-note,
.boundary-note,
.quality-note {
  border-left: 0.25rem solid var(--accent);
  background: var(--surface);
}

.streak-callout,
.operation-note {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
}

.criterion-card {
  padding: 1rem;
}

.criterion-value {
  margin: 1rem 0 0.75rem;
  font-size: 1.35rem;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.criterion-facts {
  margin: 0;
}

.criterion-facts > div {
  display: grid;
  gap: 0.125rem;
  padding-block: 0.5rem;
  border-top: 1px solid var(--border);
}

.criterion-facts dt {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
}

.criterion-facts dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.gap-fact dd {
  font-weight: 750;
}

.quality-note,
.boundary-note {
  margin: 0.75rem 0 0;
  padding: 0.55rem 0.75rem;
}

details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding-block: 0.6rem;
  color: var(--accent-dark);
  font-weight: 750;
  cursor: pointer;
}

.source-details,
.technical-details {
  margin-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.source-details li {
  display: grid;
  margin-bottom: 0.5rem;
  overflow-wrap: anywhere;
}

.technical-details {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.technical-details dl,
.category-guide dl {
  margin: 0;
}

.technical-details dl > div,
.category-guide dl > div {
  padding-block: 0.5rem;
  border-top: 1px solid var(--border);
}

.technical-details dt,
.category-guide dt {
  font-weight: 800;
}

.technical-details dd,
.category-guide dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.timeline {
  display: grid;
  gap: 0;
  border-left: 0.15rem solid var(--border);
}

.timeline li {
  position: relative;
  display: grid;
  grid-template-columns: minmax(6.5rem, 1fr) auto;
  gap: 0.5rem;
  padding: 0.75rem 0 0.75rem 1rem;
}

.timeline li::before {
  position: absolute;
  top: 1.25rem;
  left: -0.4rem;
  width: 0.65rem;
  height: 0.65rem;
  border: 0.125rem solid var(--bg);
  border-radius: 50%;
  background: var(--accent);
  content: "";
}

.timeline time {
  font-weight: 750;
  font-variant-numeric: tabular-nums;
}

.timeline .boundary-note {
  grid-column: 1 / -1;
}

.trend-card {
  padding: 0.35rem 1rem;
}

.trend-card summary span {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 500;
}

.trend-card li {
  display: grid;
  gap: 0.125rem;
  padding-block: 0.55rem;
  border-top: 1px solid var(--border);
}

.trend-card small {
  color: var(--muted);
}

.date-form {
  display: grid;
  gap: 0.375rem;
}

.date-form label {
  font-weight: 750;
}

.date-form > div {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.date-form input {
  flex: 1 1 10rem;
}

.date-form button {
  flex: 1 1 auto;
}

.page-heading {
  max-width: 44rem;
  margin-bottom: 1.5rem;
}

.rule-list,
.health-list {
  display: grid;
  gap: 0.75rem;
}

.rule-card,
.health-item {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  padding: 1rem;
}

.rule-card h2,
.health-item h2,
.rule-card p,
.health-item p {
  margin-bottom: 0.25rem;
}

.rule-number,
.health-item > span {
  display: grid;
  flex: 0 0 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 50%;
  background: var(--surface-soft);
  color: var(--accent-dark);
  font-weight: 850;
}

.hash-value {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.8rem;
  word-break: break-all;
}

.operation-note {
  margin-top: 1rem;
}

.operation-note h2,
.operation-note p {
  margin-bottom: 0.35rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (min-width: 40rem) {
  .header-inner,
  .summary-panel,
  .stock-hero,
  .date-picker {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .site-header nav {
    display: flex;
    flex-wrap: wrap;
  }

  .site-header nav a {
    padding-inline: 0.75rem;
  }

  .summary-grid,
  .detail-counts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .stock-list,
  .criteria-list,
  .rule-list,
  .health-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .date-form {
    min-width: 22rem;
  }

  .button-link {
    width: auto;
  }
}

@media (min-width: 64rem) {
  .page {
    padding-top: 2rem;
  }

  .stock-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .criteria-list,
  .trend-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}