:root {
  --bg-paper: #FFFFFF;
  --bg-canvas: #f6f4f2;
  --bg-ink: #111111;
  --bg-muted: #4D4D4D;
  --bg-line: #ded7d1;
  --bg-accent: #FF5722;
  --bg-accent-deep: #d94718;
  --bg-dark: #161616;
  --bg-soft: #f1ece8;
  --bg-shadow: 0 28px 60px rgba(17, 17, 17, 0.12);
  --bg-radius: 24px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: radial-gradient(circle at top right, rgba(255, 87, 34, 0.08), transparent 28%), var(--bg-canvas);
  color: var(--bg-ink);
  font-family: Inter, sans-serif;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.bg-shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

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

.bg-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(77, 77, 77, 0.08);
}

.bg-scrolled .bg-header {
  box-shadow: 0 10px 30px rgba(17, 17, 17, 0.08);
}

.bg-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 86px;
}

.bg-brand,
.bg-footer__brand {
  font-family: Lexend, sans-serif;
  font-weight: 900;
  letter-spacing: -0.08em;
  color: var(--bg-ink);
}

.bg-brand {
  font-size: clamp(1.8rem, 2.6vw, 2.4rem);
}

.bg-brand::after {
  content: ".";
  color: var(--bg-accent);
}

.bg-desktop-nav {
  flex: 1;
}

.bg-menu {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.bg-menu__item {
  position: relative;
}

.bg-menu__item > a,
.bg-menu__item > span {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0.55rem 0.95rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bg-muted);
  transition: color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.bg-menu__item > a:hover,
.bg-menu__item:hover > a,
.bg-menu__item:hover > span {
  background: rgba(255, 87, 34, 0.1);
  color: var(--bg-accent-deep);
  transform: translateY(-1px);
}

.bg-submenu {
  position: absolute;
  top: calc(100% + 0.75rem);
  left: 0;
  min-width: 260px;
  padding: 0.85rem;
  border: 1px solid rgba(77, 77, 77, 0.1);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--bg-shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.bg-submenu a {
  display: block;
  padding: 0.65rem 0.7rem;
  border-radius: 16px;
  color: var(--bg-muted);
  font-size: 0.95rem;
  line-height: 1.35;
}

.bg-submenu a:hover {
  background: var(--bg-soft);
  color: var(--bg-ink);
}

.bg-menu__item.has-children:hover .bg-submenu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.bg-nav-toggle {
  display: none;
  border: 0;
  border-radius: 999px;
  padding: 0.8rem 1.2rem;
  background: var(--bg-accent);
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.bg-mobile-nav {
  display: none;
  border-top: 1px solid rgba(77, 77, 77, 0.08);
  background: #fff;
}

.bg-mobile-nav.is-open {
  display: block;
}

.bg-mobile-item {
  padding: 1rem 0;
  border-bottom: 1px solid rgba(77, 77, 77, 0.08);
}

.bg-mobile-link {
  display: inline-block;
  font-size: 0.95rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.bg-mobile-children {
  display: grid;
  gap: 0.45rem;
  padding-top: 0.75rem;
}

.bg-mobile-children a {
  color: var(--bg-muted);
}

.bg-breadcrumbs {
  padding: 1rem 0 0;
}

.bg-breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  list-style: none;
  margin: 0;
  padding: 0;
  color: var(--bg-muted);
  font-size: 0.85rem;
}

.bg-breadcrumbs__list li:not(:last-child)::after {
  content: "/";
  margin-left: 0.65rem;
  color: rgba(77, 77, 77, 0.45);
}

.bg-hero,
.bg-panel,
.bg-sidecard,
.bg-stream-card,
.bg-mini-card,
.bg-category-card,
.bg-article-shell,
.bg-home-story,
.bg-footer {
  border-radius: var(--bg-radius);
}

.bg-hero {
  position: relative;
  overflow: hidden;
  margin: 1.25rem auto 0;
  padding: clamp(2rem, 4vw, 4rem);
  background: linear-gradient(140deg, var(--bg-dark), #2a2a2a 48%, var(--bg-accent-deep) 140%);
  color: #fff;
  box-shadow: var(--bg-shadow);
}

.bg-hero__eyebrow,
.bg-kicker,
.bg-footer__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.bg-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(260px, 0.8fr);
  gap: 2rem;
  align-items: center;
}

.bg-hero h1,
.bg-section-title,
.bg-footer__brand {
  margin: 0;
  font-family: Lexend, sans-serif;
  line-height: 0.94;
}

.bg-hero h1 {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  max-width: 11ch;
}

.bg-hero p {
  margin: 1.1rem 0 0;
  max-width: 42rem;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.05rem;
  line-height: 1.7;
}

.bg-hero__actions,
.bg-chip-cloud,
.bg-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.bg-hero__cta,
.bg-chip {
  border-radius: 999px;
}

.bg-hero__cta {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0.9rem 1.3rem;
  background: var(--bg-accent);
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.bg-hero__cta--ghost {
  background: rgba(255, 255, 255, 0.1);
}

.bg-hero__media {
  position: relative;
  min-height: 320px;
  border-radius: 26px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.06);
}

.bg-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bg-section {
  padding: clamp(2rem, 4vw, 4rem) 0;
}

.bg-panel,
.bg-home-story,
.bg-article-shell,
.bg-sidecard,
.bg-category-card,
.bg-stream-card,
.bg-mini-card {
  background: var(--bg-paper);
  border: 1px solid rgba(77, 77, 77, 0.08);
  box-shadow: 0 20px 40px rgba(17, 17, 17, 0.06);
}

.bg-panel,
.bg-home-story,
.bg-article-shell,
.bg-sidecard {
  padding: clamp(1.4rem, 2.8vw, 2.3rem);
}

.bg-section-title {
  font-size: clamp(2.1rem, 4vw, 3.6rem);
  letter-spacing: -0.06em;
}

.bg-lead {
  color: var(--bg-muted);
  line-height: 1.75;
}

.bg-feature-grid,
.bg-listing-grid,
.bg-gallery-grid,
.bg-media-grid {
  display: grid;
  gap: 1.15rem;
}

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

.bg-feature-card {
  padding: 1.4rem;
  border-radius: 22px;
  background: linear-gradient(180deg, #fff, #f6f2ee);
  border: 1px solid rgba(77, 77, 77, 0.08);
}

.bg-feature-card h3,
.bg-mini-card h3,
.bg-category-card h2 {
  margin: 0 0 0.7rem;
  font-family: Lexend, sans-serif;
  font-size: 1.35rem;
  letter-spacing: -0.04em;
}

.bg-feature-card p,
.bg-mini-card p,
.bg-category-card p,
.bg-stream-card p,
.bg-sidecard p,
.bg-footer__copy {
  margin: 0;
  color: var(--bg-muted);
  line-height: 1.65;
}

.bg-home-flow {
  display: grid;
  gap: 1.15rem;
}

.bg-home-flow > .bg-figure,
.bg-home-flow > .bg-gallery-grid,
.bg-home-flow > .bg-table-shell {
  grid-column: 1 / -1;
}

.bg-figure,
.bg-category-card__image,
.bg-stream-card__media {
  overflow: hidden;
  border-radius: 22px;
  margin: 0;
}

.bg-figure img,
.bg-category-card__image img,
.bg-stream-card__media img {
  width: 100%;
  object-fit: cover;
}

.bg-figure figcaption,
.bg-gallery-grid figcaption {
  padding-top: 0.6rem;
  color: var(--bg-muted);
  font-size: 0.9rem;
}

.bg-figure--float {
  max-width: 300px;
  float: right;
  margin: 0 0 1rem 1.5rem;
}

.bg-rich__heading {
  margin: 1.35rem 0 0.7rem;
  font-family: Lexend, sans-serif;
  letter-spacing: -0.04em;
}

.bg-rich__heading--1 {
  font-size: 2.2rem;
}

.bg-rich__heading--2 {
  font-size: 1.7rem;
}

.bg-rich__heading--3,
.bg-rich__heading--4 {
  font-size: 1.25rem;
}

.bg-rich__paragraph,
.bg-blockquote,
.bg-list li,
.bg-table td,
.bg-table th {
  font-size: 1rem;
  line-height: 1.8;
}

.bg-rich__paragraph {
  margin: 0.75rem 0 0;
  color: #232323;
}

.bg-list {
  margin: 1rem 0;
  padding-left: 1.15rem;
  color: #232323;
}

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

.bg-table-shell {
  margin: 1.25rem 0;
  overflow-x: auto;
  border-radius: 20px;
  border: 1px solid rgba(77, 77, 77, 0.1);
}

.bg-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}

.bg-table th,
.bg-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid rgba(77, 77, 77, 0.08);
  text-align: left;
}

.bg-table thead {
  background: var(--bg-soft);
}

.bg-blockquote {
  margin: 1.2rem 0;
  padding: 1.2rem 1.35rem;
  border-left: 4px solid var(--bg-accent);
  background: #fff4f0;
  border-radius: 0 18px 18px 0;
}

.bg-rule {
  margin: 1.5rem 0;
  border: 0;
  border-top: 1px solid rgba(77, 77, 77, 0.15);
}

.bg-chip {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0.55rem 0.95rem;
  background: var(--bg-soft);
  color: var(--bg-muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.bg-chip:hover {
  background: rgba(255, 87, 34, 0.12);
  color: var(--bg-accent-deep);
}

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

.bg-stream-card,
.bg-category-card,
.bg-mini-card {
  overflow: hidden;
}

.bg-stream-card__body,
.bg-category-card__body,
.bg-mini-card {
  padding: 1.2rem;
}

.bg-stream-card__eyebrow,
.bg-category-card__cta {
  color: var(--bg-accent-deep);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.bg-gallery-grid,
.bg-media-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.bg-gallery-grid__item {
  margin: 0;
  overflow: hidden;
  border-radius: 22px;
  background: #fff;
  border: 1px solid rgba(77, 77, 77, 0.08);
}

.bg-gallery-grid__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bg-media-grid .bg-gallery-grid__item:first-child {
  grid-column: span 2;
  grid-row: span 2;
}

.bg-sidecard {
  position: sticky;
  top: 112px;
}

.bg-sidecard h3,
.bg-footer__title {
  margin: 0 0 1rem;
  font-family: Lexend, sans-serif;
  font-size: 1.1rem;
  letter-spacing: -0.03em;
}

.bg-sidecard__links,
.bg-footer__links {
  display: grid;
  gap: 0.65rem;
}

.bg-sidecard__links a,
.bg-footer__links a {
  color: var(--bg-muted);
}

.bg-sidecard__links a:hover,
.bg-footer__links a:hover {
  color: var(--bg-accent-deep);
}

.bg-footer {
  margin-top: 3rem;
  padding: 2rem 0;
  background: linear-gradient(145deg, #111111, #222222);
  color: rgba(255, 255, 255, 0.8);
}

.bg-footer__brand {
  font-size: 2.3rem;
  color: #fff;
}

.bg-footer__copy {
  margin-top: 1rem;
  max-width: 28rem;
  color: rgba(255, 255, 255, 0.65);
}

.bg-footer__title {
  color: #fff;
}

.bg-content-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
  color: var(--bg-muted);
  font-size: 0.88rem;
}

.bg-content-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 1.35rem;
}

.bg-content-shell--wide {
  grid-template-columns: minmax(0, 1fr);
}

.bg-toc {
  padding: 1.35rem;
  border-radius: 22px;
  background: #fff;
  border: 1px solid rgba(77, 77, 77, 0.08);
}

.bg-toc ul {
  margin: 0;
  padding-left: 1rem;
  display: grid;
  gap: 0.5rem;
}

.bg-toc a {
  color: var(--bg-muted);
}

.bg-category-card--horizontal {
  display: grid;
  grid-template-columns: 180px 1fr;
}

.bg-category-card--minimal .bg-category-card__image {
  display: none;
}

.bg-code {
  padding: 1rem 1.15rem;
  border-radius: 18px;
  background: #171717;
  color: #f7f7f7;
  overflow-x: auto;
}

@media (max-width: 960px) {
  .bg-desktop-nav {
    display: none;
  }

  .bg-nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .bg-hero__grid,
  .bg-feature-grid,
  .bg-listing-grid,
  .bg-gallery-grid,
  .bg-media-grid,
  .bg-content-shell,
  .bg-category-card--horizontal {
    grid-template-columns: 1fr;
  }

  .bg-sidecard {
    position: static;
  }

  .bg-figure--float {
    float: none;
    max-width: none;
    margin-left: 0;
  }
}

@media (max-width: 640px) {
  .bg-shell {
    width: min(100% - 1.25rem, 1180px);
  }

  .bg-hero {
    padding: 1.5rem;
  }

  .bg-menu {
    gap: 0.45rem;
  }

  .bg-feature-card,
  .bg-panel,
  .bg-article-shell,
  .bg-home-story,
  .bg-sidecard {
    padding: 1.1rem;
    border-radius: 20px;
  }
}