/* ══════════════════════════════════════════════════════
   ARTICLE PAGE - scoped styles (both themes)
   ══════════════════════════════════════════════════════ */
.page-article {
  --ar-paper: #FAFAFA;
  --ar-card: #FFFFFF;
  --ar-ink: #1A1A1A;
  --ar-ink-light: #666;
  --ar-border: #E5E5E5;
  --ar-border-dark: #CCC;
  --ar-orange: #E68900;
  --ar-orange-hover: #FF9800;
  --ar-ease: cubic-bezier(.4,0,.2,1);

  background: var(--ar-paper);
  color: var(--ar-ink);
  font-family: var(--f-b);
  line-height: 1.7;
  padding-top: 70px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
[data-theme="dark"] .page-article,
html:not([data-theme="light"]) .page-article {
  --ar-paper: #0A0A0A;
  --ar-card: #111;
  --ar-ink: #F0F0F0;
  --ar-ink-light: #9A9A9A;
  --ar-border: rgba(255,255,255,.08);
  --ar-border-dark: rgba(255,255,255,.2);
  --ar-orange: #FF9800;
  --ar-orange-hover: #FFB74D;
}
.page-article *, .page-article *::before, .page-article *::after { box-sizing: border-box; }
.page-article .ar-container { max-width: 1280px; margin: 0 auto; padding: 0 40px; }

/* ── Reading progress bar ── */
.page-article .progress-container {
  position: fixed; top: 0; left: 0; width: 100%; height: 4px;
  background: transparent; z-index: 1001;
}
.page-article .progress-bar { height: 100%; background: var(--ar-orange); width: 0%; transition: width .05s linear; }

/* ── Article hero ── */
.page-article .article-hero { padding: 60px 0 60px; }
.page-article .breadcrumbs{
  font-family: var(--f-m); font-size: .65rem; color: var(--ar-ink-light);
  text-transform: uppercase; letter-spacing: .1em; margin-bottom: 40px;
}
.page-article .breadcrumbs a { color: var(--ar-ink); text-decoration: none; transition: .3s; }
.page-article .breadcrumbs a:hover { color: var(--ar-orange); }
.page-article .breadcrumbs span { margin: 0 8px; color: var(--ar-border-dark); }

.page-article .meta-top{ display: flex; align-items: center; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.page-article .cat-tag{
  border: 1px solid var(--ar-orange); color: var(--ar-orange);
  font-family: var(--f-m); font-size: .65rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: .1em; padding: 6px 12px;
}
.page-article .date-read{
  font-family: var(--f-m); font-size: .65rem; color: var(--ar-ink-light);
  text-transform: uppercase; letter-spacing: .05em;
}
.page-article .hero-title{
  font-family: var(--f-d); font-size: clamp(2.4rem, 6vw, 5.5rem); font-weight: 900;
  line-height: .95; letter-spacing: -.03em; text-transform: uppercase;
  margin-bottom: 32px; max-width: 1100px;
}
.page-article .hero-title .accent{ color: var(--ar-orange); }
.page-article .hero-perex{
  font-size: 1.2rem; color: var(--ar-ink-light);
  max-width: 700px; line-height: 1.6;
  border-left: 2px solid var(--ar-orange); padding-left: 24px;
}

/* ── Hero image ── */
.page-article .hero-image-wrap{
  width: 100%; height: 60vh; min-height: 500px; margin-bottom: 80px;
  clip-path: polygon(0 0, 100% 2%, 99% 100%, 1% 98%);
  overflow: hidden; position: relative;
}
.page-article .hero-image-wrap img{
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(100%) contrast(1.1);
  transition: filter .8s var(--ar-ease), transform 1s var(--ar-ease);
}
.page-article .hero-image-wrap:hover img{ filter: grayscale(0%); transform: scale(1.02); }

/* ── Layout (sidebar + content) ── */
.page-article .layout-grid{
  display: grid; grid-template-columns: 300px 1fr;
  gap: 80px; padding-bottom: 120px; align-items: start;
}
.page-article .ar-sidebar{
  position: sticky; top: 100px;
  display: flex; flex-direction: column; gap: 40px;
}
.page-article .sb-box{
  border: 1px solid var(--ar-border); background: var(--ar-card); padding: 32px;
}
.page-article .sb-title{
  font-family: var(--f-d); font-size: 1.1rem; font-weight: 800;
  margin-bottom: 24px; display: flex; align-items: center; gap: 12px;
}
.page-article .sb-title::before{ content: ""; width: 8px; height: 8px; background: var(--ar-orange); }
.page-article .toc-list{ list-style: none; padding: 0; margin: 0; }
.page-article .toc-list li { margin-bottom: 12px; }
.page-article .toc-list a{
  font-family: var(--f-b); font-size: .95rem; color: var(--ar-ink-light);
  text-decoration: none; transition: color .2s, transform .2s;
  display: inline-block;
}
.page-article .toc-list a:hover{ color: var(--ar-orange); transform: translateX(4px); }
.page-article .toc-list a.is-active{ color: var(--ar-orange); font-weight: 600; }

/* Sidebar CTA */
.page-article .sb-cta{
  background: var(--ar-orange); color: #1A1A1A; padding: 32px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}
.page-article .sb-cta h3{ font-family: var(--f-d); font-size: 1.4rem; font-weight: 900; margin-bottom: 12px; line-height: 1.1; }
.page-article .sb-cta p{ font-size: .9rem; margin-bottom: 24px; font-weight: 500; }
.page-article .btn-dark{
  background: #1A1A1A; color: #FAFAFA;
  text-decoration: none; font-family: var(--f-m); font-size: .7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .1em;
  padding: 16px 24px; display: flex; width: 100%; justify-content: center;
  transition: .3s; border: none; cursor: pointer;
}
.page-article .btn-dark:hover{ background: #FAFAFA; color: #1A1A1A; }

.page-article .contact-box a{
  display: block; font-family: var(--f-m); font-size: .8rem;
  color: var(--ar-orange); text-decoration: none; margin-bottom: 12px; font-weight: 700;
}
.page-article .contact-box a:hover{ color: var(--ar-ink); }

.page-article .tags-wrap{ display: flex; flex-wrap: wrap; gap: 8px; }
.page-article .tag-chip{
  border: 1px solid var(--ar-border-dark); color: var(--ar-ink-light);
  font-family: var(--f-m); font-size: .6rem; padding: 6px 12px;
  text-transform: uppercase; text-decoration: none; transition: .3s;
}
.page-article .tag-chip:hover{ border-color: var(--ar-ink); color: var(--ar-ink); }

/* ── Content body ── */
.page-article .article-content{ max-width: 800px; }
.page-article .cz-only-notice{
  display: flex; align-items: flex-start; gap: 14px;
  margin: 0 0 40px;
  padding: 16px 20px;
  border: 1px solid color-mix(in srgb, var(--ar-ink) 20%, transparent);
  border-left: 3px solid var(--ar-accent, currentColor);
  border-radius: 4px;
  background: color-mix(in srgb, var(--ar-ink) 4%, transparent);
  font-family: var(--f-b);
  font-size: .95rem;
  line-height: 1.5;
  color: var(--ar-ink);
}
.page-article .cz-only-icon{
  flex: 0 0 24px;
  height: 24px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--ar-ink);
  color: var(--ar-paper, #fff);
  font-family: var(--f-d);
  font-weight: 700;
  font-style: italic;
  font-size: .85rem;
  line-height: 1;
}
.page-article .cz-only-text{ flex: 1; }
.page-article .cz-only-text a{ color: inherit; text-decoration: underline; text-underline-offset: 3px; }
.page-article .article-content h2{
  font-family: var(--f-d); font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 900; letter-spacing: -.02em;
  margin: 64px 0 24px; line-height: 1.1;
  scroll-margin-top: 120px;
}
.page-article .article-content h2:first-child{ margin-top: 0; }
.page-article .article-content p{
  font-size: 1.15rem; color: var(--ar-ink); margin-bottom: 24px;
}
.page-article .article-content strong{ font-weight: 700; }
.page-article .article-content code{
  font-family: var(--f-m); font-size: .9em; padding: 2px 6px;
  background: var(--ar-border); border-radius: 3px;
}
.page-article .article-content ul{ list-style: none; margin: 32px 0; padding: 0; }
.page-article .article-content ul li{
  position: relative; padding-left: 32px;
  margin-bottom: 16px; font-size: 1.1rem; color: var(--ar-ink);
}
.page-article .article-content ul li::before{
  content: '◆'; position: absolute; left: 0; top: 2px;
  color: var(--ar-orange); font-size: .8rem;
}

/* Alert boxes (.alert-box) */
.page-article .alert-box{
  border: 2px solid var(--ar-ink); border-left: 8px solid var(--ar-orange);
  background: var(--ar-card); padding: 32px; margin: 48px 0;
}
.page-article .alert-label{
  font-family: var(--f-m); font-size: .75rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: .1em;
  color: var(--ar-orange); margin-bottom: 12px; display: block;
}
.page-article .alert-box p{ margin-bottom: 0; font-size: 1.05rem; }

/* Article footer (author + share) */
.page-article .article-footer{
  margin-top: 80px; padding-top: 40px; border-top: 1px solid var(--ar-border);
  display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap;
}
.page-article .author-block{ display: flex; align-items: center; gap: 16px; }
.page-article .author-av{
  width: 48px; height: 48px; background: var(--ar-orange); color: var(--ar-ink);
  font-family: var(--f-d); font-weight: 900;
  display: flex; align-items: center; justify-content: center; border-radius: 50%;
}
.page-article .author-info h4{ font-family: var(--f-d); font-size: 1rem; font-weight: 800; margin-bottom: 2px; }
.page-article .author-info span{ font-family: var(--f-m); font-size: .65rem; color: var(--ar-ink-light); text-transform: uppercase; }

.page-article .share-block{ display: flex; align-items: center; gap: 16px; }
.page-article .share-label{ font-family: var(--f-m); font-size: .65rem; color: var(--ar-ink-light); text-transform: uppercase; letter-spacing: .1em; }
.page-article .share-btn{
  width: 40px; height: 40px; border: 1px solid var(--ar-border-dark);
  display: flex; align-items: center; justify-content: center;
  color: var(--ar-ink); text-decoration: none; transition: .3s;
  background: none; cursor: pointer;
}
.page-article .share-btn:hover{ background: var(--ar-ink); color: var(--ar-paper); border-color: var(--ar-ink); }
.page-article .share-btn svg{ width: 16px; height: 16px; fill: currentColor; }

/* Bottom CTA */
.page-article .bottom-cta{
  background: var(--ar-ink); color: var(--ar-paper);
  padding: 100px 40px; text-align: center; margin-bottom: 80px;
  clip-path: polygon(1% 0, 100% 2%, 99% 100%, 0 98%);
}
[data-theme="dark"] .page-article .bottom-cta,
html:not([data-theme="light"]) .page-article .bottom-cta{ background: #1A1A1A; }
.page-article .bottom-cta h2{ font-family: var(--f-d); font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 900; letter-spacing: -.03em; margin-bottom: 24px; }
.page-article .bottom-cta p{ color: #A0A0A0; font-size: 1.1rem; margin-bottom: 40px; }
.page-article .btn-orange{
  background: var(--ar-orange); color: var(--ar-ink);
  text-decoration: none; font-family: var(--f-d); font-weight: 800;
  padding: 20px 40px; display: inline-flex; text-transform: uppercase;
  clip-path: polygon(4px 0, 100% 0, 100% calc(100% - 4px), calc(100% - 4px) 100%, 0 100%, 0 4px);
  transition: .3s var(--ar-ease); border: none; cursor: pointer;
}
.page-article .btn-orange:hover{ background: var(--ar-paper); transform: translateY(-4px); }

/* Related posts */
.page-article .related-wrap{ padding-bottom: 120px; }
.page-article .related-title{
  font-family: var(--f-d); font-size: 2rem; font-weight: 900;
  margin-bottom: 40px; letter-spacing: -.02em;
}
.page-article .r-grid{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.page-article .r-card{ text-decoration: none; color: inherit; display: block; }
.page-article .r-img{
  width: 100%; height: 220px; overflow: hidden; margin-bottom: 20px;
  clip-path: polygon(0 0, 100% 0, 98% 100%, 0 98%);
  transition: .4s var(--ar-ease);
}
.page-article .r-img img{
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(100%); transition: .5s;
}
.page-article .r-card:hover .r-img{ clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%); }
.page-article .r-card:hover img{ filter: grayscale(0%); transform: scale(1.05); }
.page-article .r-cat{ font-family: var(--f-m); font-size: .6rem; color: var(--ar-orange); text-transform: uppercase; letter-spacing: .1em; display: block; margin-bottom: 8px; }
.page-article .r-card h3{ font-family: var(--f-d); font-size: 1.2rem; font-weight: 800; line-height: 1.2; margin-bottom: 16px; transition: .3s; }
.page-article .r-card:hover h3{ color: var(--ar-orange); }
.page-article .r-link{ font-family: var(--f-m); font-size: .65rem; font-weight: 700; color: var(--ar-ink-light); text-transform: uppercase; }

/* 404 state */
.page-article .nf-wrap{ padding: 120px 0; text-align: center; }
.page-article .nf-wrap h1{ font-family: var(--f-d); font-size: clamp(2rem, 5vw, 4rem); font-weight: 900; margin-bottom: 20px; }
.page-article .nf-wrap p{ color: var(--ar-ink-light); margin-bottom: 32px; }

@media (max-width: 1024px) {
  .page-article .layout-grid { grid-template-columns: 1fr; gap: 48px; }
  .page-article .ar-sidebar { display: none; }
  .page-article .r-grid { grid-template-columns: 1fr; }
  .page-article .hero-image-wrap { height: 40vh; min-height: 300px; clip-path: none; }
  .page-article .bottom-cta { clip-path: none; padding: 64px 24px; }
  .page-article .ar-container { padding: 0 24px; }
}