/* VINvoice — one hand-written stylesheet. System fonts, no external resources. */

:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --surface: #f5f7fa;
  --surface-2: #eaeef3;
  --text: #1a1f26;
  --muted: #545e6b;
  --border: #d3d9e1;
  --link: #0b55b5;
  --link-visited: #6a3fa8;
  --accent: #17365c;
  --code-bg: #f1f3f6;
  --code-text: #1a1f26;
  --mark: #8a2c0d;
  --draft-bg: #fff6d6;
  --draft-border: #c99a15;
  --draft-text: #3b2c00;
  --ok: #166534;
  --warn: #8a4b00;
  --err: #a11d1d;
  --focus: #0b55b5;
  --sans: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, 'Liberation Mono', monospace;
  --measure: 46rem;
  --wide: 72rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1318;
    --surface: #161b22;
    --surface-2: #1e252e;
    --text: #e5eaf0;
    --muted: #a3adba;
    --border: #2f3843;
    --link: #82b6ff;
    --link-visited: #c3a6ff;
    --accent: #9cc3f5;
    --code-bg: #171d25;
    --code-text: #e5eaf0;
    --mark: #ffb38a;
    --draft-bg: #2e2508;
    --draft-border: #8c6c12;
    --draft-text: #f6e2a8;
    --ok: #6fd28f;
    --warn: #f0b45c;
    --err: #ff8a8a;
    --focus: #82b6ff;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 1rem/1.6 var(--sans);
  overflow-wrap: break-word;
}

a {
  color: var(--link);
  text-underline-offset: 0.15em;
}
a:visited {
  color: var(--link-visited);
}
a:hover {
  text-decoration-thickness: 2px;
}
:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

h1,
h2,
h3,
h4 {
  line-height: 1.25;
  font-weight: 650;
  margin: 2rem 0 0.75rem;
  scroll-margin-top: 1rem;
}
h1 {
  font-size: clamp(1.75rem, 1.4rem + 1.5vw, 2.25rem);
  margin-top: 0.5rem;
  letter-spacing: -0.01em;
}
h2 {
  font-size: 1.45rem;
  margin-top: 2.5rem;
}
h3 {
  font-size: 1.15rem;
}
h4 {
  font-size: 1rem;
}
p,
ul,
ol,
dl {
  margin: 0 0 1rem;
}
li + li {
  margin-top: 0.25rem;
}

code,
kbd,
pre,
samp {
  font-family: var(--mono);
  font-size: 0.875em;
}
code {
  background: var(--code-bg);
  color: var(--code-text);
  padding: 0.05em 0.25em;
  border-radius: 4px;
  overflow-wrap: anywhere;
}
pre {
  background: var(--code-bg);
  color: var(--code-text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.875rem 1rem;
  overflow-x: auto;
  line-height: 1.5;
  margin: 0 0 1rem;
  tab-size: 2;
}
pre code {
  background: none;
  padding: 0;
  font-size: 0.8125rem;
  overflow-wrap: normal;
}

/* Layout */
.skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--bg);
  padding: 0.5rem 1rem;
  z-index: 10;
}
.skip:focus {
  left: 1rem;
}

.wrap {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0 1rem;
}
main.wrap {
  padding-bottom: 3rem;
}
.prose {
  max-width: var(--measure);
}

.site-header {
  border-bottom: 1px solid var(--border);
}
.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 2rem;
  padding-top: 0.875rem;
  padding-bottom: 0.875rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--text);
  text-decoration: none;
}
.brand:visited {
  color: var(--text);
}
.brand img {
  display: block;
}
.wordmark {
  display: block;
  font-size: 1.3rem;
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.15;
}
.wordmark span {
  font-weight: 750;
}
.brand > div > span {
  display: block;
  font-size: 0.8125rem;
  color: var(--muted);
  line-height: 1.2;
}
.hero {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.hero img {
  flex: none;
}
.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 1.6rem + 2vw, 2.75rem);
}
.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.125rem 1.125rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav li + li {
  margin-top: 0;
}
.site-nav a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.9375rem;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover {
  border-bottom-color: var(--border);
}
.site-nav a[aria-current='page'] {
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.status {
  background: var(--draft-bg);
  color: var(--draft-text);
  border-bottom: 1px solid var(--draft-border);
  font-size: 0.9375rem;
}
.status .wrap {
  padding-top: 0.625rem;
  padding-bottom: 0.625rem;
}
.status p {
  margin: 0;
}
.status a,
.status a:visited {
  color: inherit;
}
.badge-draft {
  display: inline-block;
  border: 1px solid var(--draft-border);
  border-radius: 4px;
  padding: 0 0.4rem;
  margin-right: 0.5rem;
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.page-head {
  padding: 1.75rem 0 0.5rem;
}
.page-head p.lead {
  font-size: 1.125rem;
  color: var(--muted);
  max-width: var(--measure);
}
.breadcrumb {
  font-size: 0.875rem;
  color: var(--muted);
  margin: 0;
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.breadcrumb li + li {
  margin-top: 0;
}
.breadcrumb li + li::before {
  content: '›';
  margin-right: 0.375rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.875rem;
}
.site-footer .wrap {
  padding-top: 1.5rem;
  padding-bottom: 2rem;
  display: grid;
  gap: 0.75rem;
}
.site-footer p {
  margin: 0;
}
.site-footer ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-footer li + li {
  margin-top: 0;
}
.site-footer a,
.site-footer a:visited {
  color: var(--text);
}
.sponsor {
  color: var(--text);
}

/* Tables */
.table-wrap {
  overflow-x: auto;
  margin: 0 0 1.25rem;
  border: 1px solid var(--border);
  border-radius: 6px;
}
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.9375rem;
}
caption {
  text-align: left;
  font-weight: 600;
  padding: 0.625rem 0.75rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
th,
td {
  text-align: left;
  vertical-align: top;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
}
thead th {
  background: var(--surface);
  font-weight: 600;
  white-space: nowrap;
}
tbody tr:last-child > * {
  border-bottom: 0;
}
td.num,
th.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
td code,
th code {
  white-space: nowrap;
}
.wrapcode code {
  white-space: normal;
}

/* Definition list for term pages */
dl.facts {
  display: grid;
  grid-template-columns: minmax(9rem, 13rem) minmax(0, 1fr);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin: 0 0 1.5rem;
}
dl.facts > dt,
dl.facts > dd {
  min-width: 0;
  margin: 0;
  padding: 0.625rem 0.875rem;
  border-bottom: 1px solid var(--border);
}
dl.facts > dt {
  background: var(--surface);
  font-weight: 600;
  font-size: 0.9375rem;
}
dl.facts > dt:last-of-type,
dl.facts > dd:last-of-type {
  border-bottom: 0;
}
dl.facts ul {
  margin: 0;
  padding-left: 1.125rem;
}
dl.facts ul.tokens {
  padding-left: 0;
}
@media (max-width: 40rem) {
  dl.facts {
    grid-template-columns: minmax(0, 1fr);
  }
  dl.facts > dt {
    border-bottom: 0;
    padding-bottom: 0.125rem;
  }
}

/* Small components */
.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.5;
  padding: 0 0.4rem;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  white-space: nowrap;
  vertical-align: 0.1em;
}
.tag.statutory {
  border-color: var(--mark);
  color: var(--mark);
  background: transparent;
}
.tag.provisional {
  border-style: dashed;
}
.muted {
  color: var(--muted);
}
.small {
  font-size: 0.875rem;
}
.key {
  font-family: var(--mono);
}
.ok {
  color: var(--ok);
}
.warn {
  color: var(--warn);
}
.err {
  color: var(--err);
}

.note {
  border-left: 4px solid var(--accent);
  background: var(--surface);
  padding: 0.75rem 1rem;
  margin: 0 0 1.25rem;
  border-radius: 0 6px 6px 0;
}
.note > :last-child {
  margin-bottom: 0;
}
.note.draft {
  border-left-color: var(--draft-border);
  background: var(--draft-bg);
  color: var(--draft-text);
}

.toc {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  margin: 0 0 1.5rem;
  max-width: var(--measure);
  background: var(--surface);
}
.toc h2 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border: 0;
  padding: 0;
  margin: 0 0 0.375rem;
}
.toc ol {
  margin: 0;
  padding-left: 1.25rem;
  columns: 2 15rem;
  column-gap: 2rem;
}
.toc li + li {
  margin-top: 0.125rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: 0.75rem;
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}
.cards li + li {
  margin-top: 0;
}
.cards a {
  display: block;
  height: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.875rem 1rem;
  text-decoration: none;
  color: var(--text);
}
.cards a:hover {
  border-color: var(--accent);
}
.cards strong {
  display: block;
  color: var(--link);
  margin-bottom: 0.25rem;
}
.cards span {
  color: var(--muted);
  font-size: 0.9375rem;
}

.facts-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  font-size: 0.9375rem;
}
.facts-inline li + li {
  margin-top: 0;
}
.facts-inline strong {
  font-variant-numeric: tabular-nums;
}

.filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  margin: 0 0 1.25rem;
}
.filter label {
  font-weight: 600;
}
.filter input {
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.375rem 0.625rem;
  min-width: min(20rem, 100%);
}
.filter output {
  color: var(--muted);
  font-size: 0.875rem;
}

.pager {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.tokens {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  list-style: none;
  padding: 0;
  margin: 0;
}
.tokens li + li {
  margin-top: 0;
}

details {
  margin: 0 0 1rem;
}
summary {
  cursor: pointer;
  font-weight: 600;
}
details[open] > summary {
  margin-bottom: 0.5rem;
}
.dd-note {
  margin: 0.375rem 0 0;
}
.flush {
  margin: 0;
}
section > .tokens,
.prose > .tokens {
  margin-bottom: 0.75rem;
}
.hero + .lead {
  margin-top: 0.75rem;
}
.nowrap {
  white-space: nowrap;
}
.rule-index {
  columns: 2 18rem;
  column-gap: 2rem;
  padding-left: 1.25rem;
}
.rule {
  border-top: 1px solid var(--border);
  padding-top: 0.5rem;
  margin-top: 1.5rem;
}
.rule h3 {
  margin-top: 0.5rem;
}
.rule-id {
  font-family: var(--mono);
  font-size: 0.9em;
  color: var(--muted);
  margin-right: 0.25rem;
}