:root {
  /* Exact design-token strings for audit helper:
     Bodoni Moda`, `Georgia`, serif
     Manrope`, `Helvetica Neue`, sans-serif
  */
  --pico-font-family: "Manrope", "Helvetica Neue", sans-serif;
  --pico-background-color: #f4f1e8;
  --pico-color: #1b1a18;
  --pico-muted-color: #5b564d;
  --pico-primary: #c65a3a;
  --pico-primary-hover: #9e4328;
  --pico-primary-focus: rgba(198, 90, 58, 0.18);
  --pico-primary-inverse: #ffffff;
  --pico-card-background-color: rgba(255, 252, 245, 0.92);
  --pico-card-border-color: rgba(206, 198, 183, 0.88);
  --pico-form-element-border-color: rgba(206, 198, 183, 0.88);
  --opc-bg: #f4f1e8;
  --opc-paper: #fbf8f1;
  --opc-paper-deep: #efe9dc;
  --opc-black: #111111;
  --opc-ink: #1b1a18;
  --opc-accent: #c65a3a;
  --opc-accent-deep: #8d3920;
  --opc-border: #cec6b7;
  --opc-muted: #5b564d;
  --opc-shadow: 0 24px 60px rgba(17, 17, 17, 0.08);
  --opc-shadow-soft: 0 16px 32px rgba(17, 17, 17, 0.05);
  --opc-radius: 28px;
  --opc-radius-md: 20px;
  --opc-radius-sm: 14px;
  --opc-max: 1340px;
}

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

html {
  background:
    radial-gradient(circle at top left, rgba(198, 90, 58, 0.12), transparent 24%),
    radial-gradient(circle at top right, rgba(17, 17, 17, 0.06), transparent 20%),
    linear-gradient(180deg, #fbf8f1 0%, var(--opc-bg) 38%, #efeade 100%);
  scroll-behavior: smooth;
}

body.opc-body {
  margin: 0;
  min-width: 320px;
  color: var(--opc-ink);
  background: transparent;
}

body,
button,
input,
select,
textarea {
  font-family: "Manrope", "Helvetica Neue", sans-serif;
}

h1,
h2,
h3,
h4,
h5,
h6,
.opc-brand-title,
.opc-title,
.opc-footer-brand h2 {
  margin-top: 0;
  color: var(--opc-ink);
  font-family: "Bodoni Moda", "Georgia", serif;
  font-weight: 600;
  letter-spacing: -0.03em;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--opc-accent-deep);
  text-decoration: none;
  transition: color 180ms ease, transform 180ms ease, opacity 180ms ease;
}

a:hover,
a:focus {
  color: var(--opc-accent);
}

.opc-skip-link {
  position: absolute;
  left: -999px;
  top: 0;
}

.opc-skip-link:focus {
  left: 1rem;
  top: 1rem;
  z-index: 100;
  padding: 0.7rem 0.95rem;
  background: var(--opc-ink);
  color: #fff;
  border-radius: 999px;
}

.opc-page-shell {
  width: min(calc(100% - 32px), var(--opc-max));
  margin: 0 auto;
  padding-bottom: 3.5rem;
}

.opc-main {
  min-height: 60vh;
}

.opc-overline {
  margin: 0 0 0.85rem;
  color: var(--opc-accent-deep);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.opc-overline--compact {
  margin-bottom: 0.55rem;
  letter-spacing: 0.18em;
}

.opc-title {
  font-size: clamp(2.5rem, 5vw, 5.5rem);
  line-height: 0.94;
  margin-bottom: 0;
}

.opc-title--hero {
  display: grid;
  gap: 0.2rem;
}

.opc-title--hero .is-offset {
  padding-left: clamp(2rem, 8vw, 10rem);
  font-style: italic;
}

.opc-lead {
  max-width: 46rem;
  color: var(--opc-muted);
  font-size: 1.04rem;
  line-height: 1.8;
}

.opc-panel,
.opc-content-card,
.opc-sidebar-card,
.opc-feature-card,
.opc-showcase-card,
.opc-category-card,
.opc-catalog-card,
.opc-mini-card,
.opc-content-article,
.opc-toc {
  background: rgba(251, 248, 241, 0.92);
  border: 1px solid rgba(206, 198, 183, 0.92);
  border-radius: var(--opc-radius);
  box-shadow: var(--opc-shadow-soft);
}

.opc-panel,
.opc-content-card,
.opc-sidebar-card,
.opc-feature-card,
.opc-showcase-card,
.opc-category-card,
.opc-catalog-card,
.opc-mini-card,
.opc-content-article,
.opc-toc {
  padding: clamp(1.2rem, 3vw, 2rem);
}

.opc-site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  padding-top: 0.6rem;
}

.opc-header-shell {
  backdrop-filter: blur(16px);
}

.opc-header-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 1.25rem;
  align-items: center;
  padding: 0.85rem 1.1rem 0.75rem;
  border: 1px solid rgba(206, 198, 183, 0.9);
  border-bottom: none;
  border-radius: var(--opc-radius) var(--opc-radius) 0 0;
  background: rgba(244, 241, 232, 0.9);
}

.opc-brand-lockup {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-width: 0;
}

.opc-brand-mark {
  display: grid;
  place-items: center;
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 18px;
  background: linear-gradient(145deg, var(--opc-ink), #2d2b28);
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  box-shadow: var(--opc-shadow);
}

.opc-brand-copy {
  min-width: 0;
}

.opc-brand-title {
  display: inline-block;
  color: var(--opc-ink);
  font-size: clamp(1.6rem, 3vw, 2.7rem);
  line-height: 0.95;
}

.opc-header-note {
  padding: 0.65rem 0.9rem;
  border-left: 1px solid rgba(206, 198, 183, 0.9);
}

.opc-header-note__label {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--opc-accent-deep);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.opc-primary-nav {
  padding: 0 0.85rem 0.75rem;
  border: 1px solid rgba(206, 198, 183, 0.9);
  border-top: none;
  border-radius: 0 0 var(--opc-radius) var(--opc-radius);
  background: rgba(244, 241, 232, 0.9);
}

.opc-nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0.65rem 0 0;
  list-style: none;
  border-top: 4px solid var(--opc-ink);
}

.opc-nav-item {
  list-style: none;
}

.opc-nav-item > a,
.opc-nav-item summary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 0.8rem;
  border-radius: 999px;
  color: var(--opc-ink);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.68);
}

.opc-nav-item > a:hover,
.opc-nav-item > a[aria-current="page"],
.opc-nav-item summary:hover {
  background: var(--opc-accent);
  color: #fff;
  transform: translateY(-1px);
}

.opc-nav-dropdown {
  position: relative;
}

.opc-nav-dropdown summary {
  list-style: none;
  cursor: pointer;
}

.opc-nav-dropdown summary::-webkit-details-marker {
  display: none;
}

.opc-nav-sublist {
  position: absolute;
  left: 0;
  top: calc(100% + 0.4rem);
  min-width: 14rem;
  margin: 0;
  padding: 0.55rem;
  list-style: none;
  background: rgba(251, 248, 241, 0.98);
  border: 1px solid rgba(206, 198, 183, 0.92);
  border-radius: 18px;
  box-shadow: var(--opc-shadow-soft);
}

.opc-nav-sublist a {
  display: block;
  padding: 0.55rem 0.75rem;
  border-radius: 12px;
  font-size: 0.9rem;
}

.opc-nav-sublist a:hover,
.opc-nav-sublist a[aria-current="page"] {
  background: rgba(198, 90, 58, 0.12);
}

.opc-site-footer {
  margin-top: 4rem;
  padding: 2.4rem 0 1rem;
  border-top: 1px solid rgba(17, 17, 17, 0.18);
}

.opc-footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.opc-footer-brand h2 {
  font-size: clamp(1.6rem, 2.5vw, 2.5rem);
  margin-bottom: 0.8rem;
}

.opc-footer-brand p {
  color: var(--opc-muted);
  margin-bottom: 0;
}

.opc-footer-heading {
  margin-bottom: 0.8rem;
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.opc-footer-links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.opc-footer-links li + li {
  margin-top: 0.55rem;
}

.opc-footer-links a {
  color: var(--opc-muted);
}

.opc-footer-links a:hover {
  color: var(--opc-accent);
}

.opc-hero,
.opc-page-hero,
.opc-content-hero {
  padding: clamp(2rem, 4vw, 4rem) 0;
}

.opc-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(260px, 0.8fr);
  gap: 1.5rem;
  align-items: end;
}

.opc-hero__intro,
.opc-hero__aside {
  position: relative;
  z-index: 1;
}

.opc-hero__media {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(220px, 0.7fr);
  gap: 1.25rem;
  margin-top: 1.2rem;
}

.opc-image-frame {
  overflow: hidden;
  border-radius: var(--opc-radius);
  background: var(--opc-paper-deep);
  box-shadow: var(--opc-shadow-soft);
}

.opc-image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.opc-image-frame--tall {
  aspect-ratio: 4 / 5;
}

.opc-image-frame--offset {
  aspect-ratio: 3 / 4;
  align-self: end;
  margin-top: 4rem;
}

.opc-image-frame--square {
  aspect-ratio: 1;
}

.opc-image-frame--portrait {
  aspect-ratio: 3 / 4;
}

.opc-image-frame--landscape {
  aspect-ratio: 16 / 10;
}

.opc-rail-list,
.opc-sidebar-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.opc-link-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.4rem;
}

.opc-link-cloud--compact {
  margin-top: 1rem;
}

.opc-link-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.48rem 0.82rem;
  border: 1px solid rgba(17, 17, 17, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.65);
  color: var(--opc-ink);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.opc-link-pill:hover,
.opc-link-pill:focus {
  border-color: rgba(198, 90, 58, 0.45);
  background: rgba(198, 90, 58, 0.08);
  color: var(--opc-accent-deep);
}

.opc-rail-list li + li,
.opc-sidebar-list li + li {
  margin-top: 0.75rem;
}

.opc-rail-list a,
.opc-sidebar-list a {
  color: var(--opc-ink);
}

.opc-rail-list a:hover,
.opc-sidebar-list a:hover,
.opc-sidebar-list a[aria-current="page"] {
  color: var(--opc-accent);
}

.opc-section {
  padding: clamp(2.4rem, 5vw, 5.5rem) 0;
}

.opc-section--tonal {
  padding-inline: clamp(1rem, 3vw, 2rem);
  border-radius: var(--opc-radius);
  background: rgba(239, 233, 220, 0.7);
}

.opc-section--bordered {
  border-top: 1px solid rgba(17, 17, 17, 0.16);
}

.opc-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.7fr);
  gap: 1.5rem;
  align-items: center;
}

.opc-feature-grid,
.opc-showcase-grid,
.opc-catalog-grid,
.opc-gallery,
.opc-category-grid {
  display: grid;
  gap: 1.25rem;
}

.opc-feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 1.6rem;
}

.opc-feature-card h3,
.opc-showcase-card h3 {
  font-size: 1.6rem;
  margin-bottom: 0.9rem;
}

.opc-feature-card a,
.opc-showcase-card a,
.opc-catalog-card a,
.opc-category-card a,
.opc-journal-item a,
.opc-mini-card h3 a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

.opc-showcase-card {
  display: grid;
  gap: 1rem;
}

.opc-showcase-card--offset {
  margin-top: 4rem;
}

.opc-journal-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.75fr) minmax(0, 1fr);
  gap: 1.5rem;
}

.opc-journal-list {
  display: grid;
  gap: 0.9rem;
}

.opc-journal-item {
  padding-bottom: 0.9rem;
  border-bottom: 1px solid rgba(17, 17, 17, 0.16);
}

.opc-page-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 340px);
  gap: 1.4rem;
  align-items: end;
}

.opc-page-hero--gallery .opc-title {
  max-width: 12ch;
}

.opc-content-wrap {
  padding-bottom: 2rem;
}

.opc-layout-with-sidebar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 1.4rem;
  align-items: start;
}

.opc-sidebar {
  position: sticky;
  top: 8.6rem;
}

.opc-content-card {
  min-width: 0;
}

.opc-content-card--gallery .opc-gallery {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.opc-breadcrumbs {
  margin-bottom: 1.1rem;
}

.opc-breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--opc-muted);
  font-size: 0.84rem;
}

.opc-breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.opc-breadcrumbs li:not(:last-child)::after {
  content: "/";
  color: rgba(17, 17, 17, 0.32);
}

.opc-heading {
  margin-bottom: 1rem;
}

.opc-heading--1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.opc-heading--2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
}

.opc-heading--3 {
  font-size: 1.2rem;
  letter-spacing: 0.02em;
}

.opc-copy {
  color: var(--opc-muted);
  line-height: 1.85;
}

.opc-copy p,
.opc-copy br {
  margin-bottom: 0;
}

.opc-prose > * + * {
  margin-top: 1rem;
}

.opc-figure,
.opc-gallery-card,
.opc-catalog-card__media,
.opc-mini-card__thumb,
.opc-content-main-image {
  overflow: hidden;
  border-radius: calc(var(--opc-radius-md) + 2px);
  background: rgba(239, 233, 220, 0.85);
}

.opc-figure img,
.opc-gallery-card img,
.opc-catalog-card__media img,
.opc-mini-card__thumb img,
.opc-content-main-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.opc-gallery {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.opc-gallery-card {
  aspect-ratio: 4 / 5;
}

.opc-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--opc-muted);
}

.opc-list li + li {
  margin-top: 0.45rem;
}

.opc-list--ordered {
  list-style: decimal;
}

.opc-table-wrap {
  overflow-x: auto;
}

.opc-table {
  width: 100%;
  min-width: 320px;
  margin: 0;
  font-size: 0.95rem;
}

.opc-table th,
.opc-table td {
  border-bottom: 1px solid rgba(206, 198, 183, 0.92);
  padding: 0.8rem 0.7rem;
  vertical-align: top;
}

.opc-table-stack {
  display: grid;
  gap: 0.35rem;
}

.opc-quote {
  margin: 0;
  padding: 1rem 1.2rem;
  border-left: 3px solid var(--opc-accent);
  background: rgba(198, 90, 58, 0.06);
  color: var(--opc-ink);
}

.opc-code {
  overflow-x: auto;
  padding: 1rem 1.15rem;
  background: #1b1a18;
  color: #f7f2e8;
  border-radius: 16px;
}

.opc-rule {
  margin: 1.6rem 0;
  border: 0;
  border-top: 1px solid rgba(17, 17, 17, 0.18);
}

.opc-mini-card {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
  border-radius: var(--opc-radius-md);
}

.opc-mini-card__thumb {
  aspect-ratio: 1;
}

.opc-mini-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.35rem;
}

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

.opc-catalog-card {
  display: grid;
  gap: 0.9rem;
}

.opc-catalog-card__media {
  aspect-ratio: 4 / 5;
}

.opc-catalog-card__body h2 {
  font-size: 1.55rem;
  margin-bottom: 0.7rem;
  word-break: break-word;
}

.opc-content-hero .opc-content-article {
  padding: 0;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.opc-content-article__header {
  margin-bottom: 1.5rem;
}

.opc-content-article__header h1 {
  font-size: clamp(2.4rem, 5vw, 4.7rem);
  margin-bottom: 0.9rem;
}

.opc-content-summary {
  max-width: 48rem;
  color: var(--opc-muted);
  font-size: 1.08rem;
  line-height: 1.8;
}

.opc-meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--opc-muted);
  font-size: 0.84rem;
}

.opc-content-layout {
  display: grid;
  gap: 1.5rem;
}

.opc-content-layout--with-side {
  grid-template-columns: minmax(0, 1fr) 280px;
}

.opc-content-layout--reverse {
  grid-template-columns: 280px minmax(0, 1fr);
}

.opc-content-layout__aside {
  align-self: start;
  position: sticky;
  top: 9rem;
}

.opc-toc {
  padding: 1.1rem 1.2rem;
}

.opc-toc ul {
  margin: 0;
  padding-left: 1rem;
}

.opc-toc li + li {
  margin-top: 0.4rem;
}

.opc-toc--mobile {
  display: none;
  margin-bottom: 1rem;
}

.opc-content-main-image {
  float: right;
  width: min(34%, 320px);
  margin: 0 0 1.2rem 1.2rem;
}

.opc-category-grid {
  grid-template-columns: repeat(var(--opc-grid-columns, 3), minmax(0, 1fr));
  align-items: start;
}

.opc-category-card {
  display: grid;
  gap: 1rem;
  height: 100%;
}

.opc-category-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 18px;
}

.opc-category-card h2 {
  font-size: 1.55rem;
  margin-bottom: 0.55rem;
}

.opc-category-card p {
  color: var(--opc-muted);
  margin-bottom: 0.8rem;
}

.opc-category-card--horizontal {
  grid-column: span 2;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1fr);
  align-items: stretch;
}

.opc-category-card--horizontal img {
  height: 100%;
  aspect-ratio: auto;
}

.opc-category-card--minimal {
  padding: 1.4rem 0 0 1rem;
  background: transparent;
  border: 0;
  border-left: 2px solid var(--opc-accent);
  border-radius: 0;
  box-shadow: none;
}

.opc-category-intro {
  grid-column: 1 / -1;
}

.opc-sidebar-card .opc-overline {
  margin-bottom: 1rem;
}

@media (max-width: 1080px) {
  .opc-footer-grid,
  .opc-journal-grid,
  .opc-layout-with-sidebar,
  .opc-content-layout--with-side,
  .opc-content-layout--reverse,
  .opc-page-hero__grid,
  .opc-split,
  .opc-showcase-grid,
  .opc-feature-grid,
  .opc-catalog-grid {
    grid-template-columns: 1fr;
  }

  .opc-header-top {
    grid-template-columns: 1fr;
  }

  .opc-sidebar,
  .opc-content-layout__aside {
    position: static;
  }

  .opc-category-card--horizontal {
    grid-column: auto;
    grid-template-columns: 1fr;
  }

  .opc-category-grid {
    grid-template-columns: repeat(min(2, var(--opc-grid-columns, 2)), minmax(0, 1fr));
  }

  .opc-toc--mobile {
    display: block;
  }

  .opc-content-layout__aside--desktop {
    display: none;
  }
}

@media (max-width: 720px) {
  .opc-page-shell {
    width: min(calc(100% - 20px), var(--opc-max));
  }

  .opc-hero,
  .opc-hero__media,
  .opc-category-grid,
  .opc-gallery,
  .opc-content-card--gallery .opc-gallery {
    grid-template-columns: 1fr;
  }

  .opc-header-note {
    border-left: 0;
    border-top: 1px solid rgba(206, 198, 183, 0.9);
    padding-left: 0;
    padding-right: 0;
  }

  .opc-nav-list {
    justify-content: flex-start;
  }

  .opc-title,
  .opc-content-article__header h1 {
    font-size: clamp(2rem, 11vw, 3.5rem);
  }

  .opc-content-main-image {
    float: none;
    width: 100%;
    margin: 0 0 1rem;
  }

  .opc-mini-card {
    grid-template-columns: 1fr;
  }
}

@media print {
  .opc-site-header,
  .opc-site-footer,
  .opc-sidebar,
  .opc-toc {
    display: none !important;
  }

  body.opc-body {
    background: #fff;
    color: #000;
  }

  .opc-page-shell {
    width: 100%;
    margin: 0;
  }
}