:root {
  --ink: #101216;
  --ink-soft: #2a3038;
  --paper: #f7f4ea;
  --paper-strong: #ece5d4;
  --white: #ffffff;
  --blue: #0901b6;
  --cyan: #17d5ff;
  --magenta: #ee2eff;
  --green: #79e15b;
  --amber: #ffcc4d;
  --line: rgba(16, 18, 22, 0.16);
  --dark-line: rgba(255, 255, 255, 0.16);
  --shadow: 0 24px 70px rgba(9, 1, 182, 0.16);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  letter-spacing: 0;
}

img,
svg {
  display: block;
  max-width: 100%;
}

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

button,
input {
  font: inherit;
}

.skip-link {
  position: absolute;
  top: -4rem;
  left: 1rem;
  z-index: 1000;
  padding: 0.8rem 1rem;
  border-radius: var(--radius);
  background: var(--amber);
  color: var(--ink);
  font-weight: 800;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  color: var(--white);
  background: rgba(16, 18, 22, 0.92);
  border-bottom: 1px solid var(--dark-line);
  backdrop-filter: blur(16px);
}

.nav {
  width: min(100% - 32px, var(--max));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 900;
  text-transform: uppercase;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 40% 35%, var(--cyan), transparent 34%),
    radial-gradient(circle at 62% 60%, var(--magenta), transparent 34%),
    var(--blue);
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.8);
}

.brand span {
  display: block;
  line-height: 1;
}

.brand small {
  display: block;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.7rem;
  font-weight: 700;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.nav-links a,
.nav-links button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 0.78rem;
  border: 0;
  border-radius: var(--radius);
  color: rgba(255, 255, 255, 0.82);
  background: transparent;
  cursor: pointer;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links button:hover,
.nav-links button:focus-visible {
  color: var(--white);
  background: rgba(255, 255, 255, 0.09);
  outline: none;
}

.nav-links .nav-cta {
  color: var(--ink);
  background: var(--green);
  font-weight: 900;
}

.nav-links .nav-cta:hover,
.nav-links .nav-cta:focus-visible {
  color: var(--ink);
  background: var(--amber);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--dark-line);
  border-radius: var(--radius);
  background: transparent;
  color: var(--white);
  cursor: pointer;
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  display: block;
  width: 20px;
  height: 2px;
  margin: 0 auto;
  background: currentColor;
  content: "";
}

.menu-toggle span {
  position: relative;
}

.menu-toggle span::before,
.menu-toggle span::after {
  position: absolute;
  left: 0;
}

.menu-toggle span::before {
  top: -7px;
}

.menu-toggle span::after {
  top: 7px;
}

.hero {
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(16, 18, 22, 0.96), rgba(16, 18, 22, 0.62)),
    url("../img/hero-plastic.webp") center / cover,
    var(--ink);
}

.hero.ru {
  background:
    linear-gradient(90deg, rgba(16, 18, 22, 0.96), rgba(16, 18, 22, 0.62)),
    url("../img/ru-hero.webp") center / cover,
    var(--ink);
}

.hero-inner {
  width: min(100% - 32px, var(--max));
  min-height: 720px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 0.55fr);
  align-items: center;
  gap: 3rem;
  padding: 5rem 0;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 1.1rem;
  font-size: 4.8rem;
  line-height: 0.98;
}

h2 {
  margin-bottom: 1rem;
  font-size: 2.6rem;
  line-height: 1.08;
}

h3 {
  font-size: 1.1rem;
  line-height: 1.28;
}

.lead {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.18rem;
}

.lead.dark {
  color: rgba(16, 18, 22, 0.76);
}

.hero-actions,
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
}

.btn {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.76rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--ink);
  background: var(--green);
  font-weight: 900;
  cursor: pointer;
}

.btn:hover,
.btn:focus-visible {
  background: var(--amber);
  outline: none;
}

.btn.ghost {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.28);
}

.btn.ghost:hover,
.btn.ghost:focus-visible {
  color: var(--ink);
  background: var(--white);
}

.hero-orb {
  justify-self: center;
  width: min(100%, 420px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}

.hero-orb img {
  width: 100%;
  filter: drop-shadow(0 30px 80px rgba(23, 213, 255, 0.34));
}

.section {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
  padding: 5.5rem 0;
}

.section.tight {
  padding: 3.8rem 0;
}

.section-head {
  max-width: 760px;
  margin-bottom: 2rem;
}

.band {
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(9, 1, 182, 0.92), rgba(238, 46, 255, 0.76)),
    url("../img/blue-film.webp") center / cover,
    var(--blue);
}

.band .lead {
  color: rgba(255, 255, 255, 0.86);
}

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 0.7fr);
  align-items: center;
  gap: 3rem;
}

.two-col.reverse {
  grid-template-columns: minmax(300px, 0.72fr) minmax(0, 0.9fr);
}

.image-frame {
  overflow: hidden;
  border-radius: var(--radius);
  background: #e6f1db;
  box-shadow: var(--shadow);
}

.image-frame img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.stat-grid,
.card-grid,
.guide-grid,
.source-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.stat,
.info-card,
.guide-card,
.source-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.62);
}

.stat {
  padding: 1.25rem;
}

.stat strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--blue);
  font-size: 2.1rem;
  line-height: 1;
}

.stat span {
  color: rgba(16, 18, 22, 0.72);
}

.info-card {
  padding: 1.25rem;
}

.info-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  margin-bottom: 1rem;
  border-radius: var(--radius);
  object-fit: cover;
}

.guide-card {
  padding: 1.15rem;
}

.guide-card .code {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  margin-bottom: 1rem;
  border-radius: 50%;
  color: var(--white);
  background: var(--blue);
  font-weight: 900;
}

.guide-card.good .code {
  background: #167a4a;
}

.guide-card.medium .code {
  background: #b17800;
}

.guide-card.hard .code {
  background: #a12c68;
}

.guide-card p,
.info-card p,
.source-card p {
  color: rgba(16, 18, 22, 0.72);
}

.steps {
  display: grid;
  gap: 1rem;
  counter-reset: step;
}

.step {
  position: relative;
  padding: 1.1rem 1.1rem 1.1rem 4.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.68);
}

.step::before {
  position: absolute;
  top: 1.1rem;
  left: 1.1rem;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--ink);
  background: var(--green);
  font-weight: 900;
  counter-increment: step;
  content: counter(step);
}

.source-card {
  padding: 1rem;
}

.source-card a {
  color: var(--blue);
  font-weight: 900;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.cta-band {
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(16, 18, 22, 0.96), rgba(16, 18, 22, 0.78)),
    url("../img/plastic-stream.webp") center / cover,
    var(--ink);
}

.cta-band .section {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(260px, 0.45fr);
  align-items: center;
  gap: 2rem;
}

.checklist {
  display: grid;
  gap: 0.8rem;
  padding: 1rem;
  border: 1px solid var(--dark-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
}

.checklist label {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 0.7rem;
  align-items: start;
}

.checklist input {
  width: 20px;
  height: 20px;
  accent-color: var(--green);
}

.notice {
  padding: 0.85rem 1rem;
  border-left: 5px solid var(--green);
  background: rgba(121, 225, 91, 0.16);
  color: var(--ink);
}

.page-hero {
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(16, 18, 22, 0.96), rgba(16, 18, 22, 0.72)),
    url("../img/magenta-film.webp") center / cover,
    var(--ink);
}

.page-hero .section {
  padding: 6rem 0;
}

.page-hero h1 {
  font-size: 4rem;
}

.site-footer {
  color: var(--white);
  background: var(--ink);
}

.footer-inner {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
  padding: 2.4rem 0;
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.76);
}

.small {
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.9rem;
}

.blog-index-hero {
  background:
    linear-gradient(90deg, rgba(16, 18, 22, 0.95), rgba(16, 18, 22, 0.66)),
    url("../img/magenta-film.webp") center / cover,
    var(--ink);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.blog-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.74);
  box-shadow: 0 18px 50px rgba(16, 18, 22, 0.08);
}

.blog-card a {
  min-height: 100%;
  display: grid;
  gap: 0.8rem;
  padding: 0 0 1.1rem;
}

.blog-card img {
  width: 100%;
  height: 220px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.blog-card .eyebrow,
.blog-card h2,
.blog-card p,
.blog-card strong {
  margin-left: 1rem;
  margin-right: 1rem;
}

.blog-card h2 {
  margin-top: 0;
  margin-bottom: 0;
  font-size: 1.38rem;
  line-height: 1.05;
}

.blog-card p {
  margin-top: 0;
  color: rgba(16, 18, 22, 0.72);
}

.blog-card strong {
  color: var(--blue);
}

.article-page {
  background: var(--paper);
}

.article-hero {
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(16, 18, 22, 0.96), rgba(16, 18, 22, 0.74)),
    url("../img/blue-film.webp") center / cover,
    var(--ink);
}

.article-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.7fr);
  align-items: center;
  gap: 2.4rem;
}

.article-hero h1 {
  font-size: 3.55rem;
}

.article-hero-media {
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.article-hero-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.2rem;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.92rem;
}

.breadcrumbs a {
  color: var(--green);
  font-weight: 800;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.3rem;
}

.article-meta span {
  padding: 0.42rem 0.65rem;
  border: 1px solid var(--dark-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.88rem;
}

.article-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 790px);
  align-items: start;
  gap: 3rem;
}

.article-sidebar {
  position: sticky;
  top: 92px;
}

.toc-card {
  display: grid;
  gap: 0.6rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
}

.toc-card a {
  color: rgba(16, 18, 22, 0.72);
  font-weight: 800;
}

.article-content {
  display: grid;
  gap: 2rem;
}

.article-content h2 {
  margin-bottom: 0.55rem;
  font-size: 2rem;
}

.article-content h3 {
  margin: 0 0 0.5rem;
}

.article-content p,
.article-content li {
  color: rgba(16, 18, 22, 0.78);
  font-size: 1.05rem;
}

.article-inline-figure {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 16px 42px rgba(16, 18, 22, 0.08);
}

.article-inline-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.article-inline-figure figcaption {
  padding: 0.8rem 1rem 0.95rem;
  color: rgba(16, 18, 22, 0.68);
  font-size: 0.95rem;
  font-weight: 700;
}

.answer-box,
.key-points,
.partner-box,
.article-sources,
.faq-section details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.74);
}

.answer-box,
.key-points,
.partner-box,
.article-sources {
  padding: 1.2rem;
}

.answer-box p:last-child,
.key-points ul,
.article-sources ul {
  margin-bottom: 0;
}

.article-infographic {
  display: grid;
  gap: 1rem;
  padding: 1.2rem;
  border-radius: var(--radius);
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(9, 1, 182, 0.94), rgba(238, 46, 255, 0.78)),
    url("../img/blue-film.webp") center / cover;
}

.info-head p {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.84);
}

.info-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.info-metric,
.info-checklist,
.info-flow li {
  border: 1px solid var(--dark-line);
  border-radius: var(--radius);
  background: rgba(16, 18, 22, 0.26);
}

.info-metric {
  padding: 0.9rem;
}

.info-metric strong {
  display: block;
  color: var(--green);
  font-size: 1.45rem;
}

.info-metric span,
.info-flow span,
.info-checklist li {
  color: rgba(255, 255, 255, 0.84);
}

.info-flow {
  display: grid;
  gap: 0.7rem;
  padding: 0;
  margin: 0;
  list-style: none;
  counter-reset: info;
}

.info-flow li {
  position: relative;
  padding: 0.85rem 0.85rem 0.85rem 3.3rem;
  counter-increment: info;
}

.info-flow li::before {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--green);
  color: var(--ink);
  font-weight: 900;
  content: counter(info);
}

.info-flow strong {
  display: block;
}

.info-checklist {
  padding: 1rem;
}

.info-checklist ul {
  margin-bottom: 0;
}

.faq-section {
  display: grid;
  gap: 0.75rem;
}

.faq-section details {
  padding: 1rem;
}

.faq-section summary {
  cursor: pointer;
  font-weight: 900;
}

.article-sources a {
  color: var(--blue);
  font-weight: 900;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.partner-box {
  border-left: 5px solid var(--green);
}

.partner-box a {
  color: var(--blue);
  font-weight: 900;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.related-section {
  padding-top: 2rem;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.related-card {
  display: grid;
  gap: 0.35rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.74);
}

.related-card span {
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

@media (max-width: 900px) {
  .menu-toggle {
    display: inline-flex;
    align-items: center;
  }

  .nav-links {
    position: absolute;
    top: 72px;
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 0.6rem;
    border: 1px solid var(--dark-line);
    border-radius: var(--radius);
    background: rgba(16, 18, 22, 0.98);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a,
  .nav-links button {
    justify-content: flex-start;
  }

  .hero-inner,
  .two-col,
  .two-col.reverse,
  .cta-band .section,
  .article-hero-inner,
  .article-layout {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    min-height: auto;
    padding: 4rem 0;
  }

  h1 {
    font-size: 3.25rem;
  }

  h2,
  .page-hero h1 {
    font-size: 2.3rem;
  }

  .stat-grid,
  .card-grid,
  .guide-grid,
  .source-grid,
  .blog-grid,
  .info-metrics,
  .related-grid {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
  }

  .blog-card img {
    height: min(360px, calc((100vw - 32px) * 0.5625));
  }

  .footer-inner {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .nav {
    width: min(100% - 24px, var(--max));
  }

  .section,
  .hero-inner,
  .footer-inner {
    width: min(100% - 24px, var(--max));
  }

  h1 {
    font-size: 2.7rem;
  }

  h2,
  .page-hero h1,
  .article-hero h1 {
    font-size: 2rem;
  }

  .lead {
    font-size: 1.04rem;
  }

  .hero-actions,
  .actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .blog-card img {
    height: min(220px, calc((100vw - 24px) * 0.5625));
  }
}