/* ── Article Hero ── */
.artikel-hero {
  position: relative;
  padding: 140px 0 64px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.artikel-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}
.artikel-hero__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 24px;
  transition: color 0.2s;
  position: relative;
  z-index: 1;
}
.artikel-hero__back:hover { color: var(--text); }
.artikel-hero__back svg { width: 16px; height: 16px; }

.artikel-hero__inner { position: relative; z-index: 1; }
.artikel-hero__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.artikel-hero__date {
  font-size: 0.82rem;
  color: var(--text-muted);
}
.artikel-hero__read {
  font-size: 0.82rem;
  color: var(--text-muted);
}
.artikel-hero__read::before { content: '· '; }

.artikel-hero h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 900;
  letter-spacing: -1.5px;
  line-height: 1.15;
  margin-bottom: 20px;
  max-width: 800px;
}
.artikel-hero__sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 680px;
  line-height: 1.7;
  margin-bottom: 32px;
}
.artikel-hero__author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.artikel-hero__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.artikel-hero__author-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}
.artikel-hero__author-role {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ── Layout ── */
.artikel-section { background: var(--bg); }
.artikel-layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 64px;
  align-items: start;
  padding: 64px 0 100px;
}

/* ── Prose ── */
.artikel-content h2 {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.25;
  margin: 48px 0 14px;
  color: var(--text);
}
.artikel-content h2:first-child { margin-top: 0; }
.artikel-content h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 28px 0 10px;
  color: var(--text);
}
.artikel-content p {
  color: var(--text-muted);
  line-height: 1.85;
  margin-bottom: 18px;
  font-size: 0.975rem;
}
.artikel-content a {
  color: var(--blue-light);
  text-decoration: underline;
  text-decoration-color: rgba(61,127,255,0.35);
  text-underline-offset: 3px;
  transition: color 0.2s, text-decoration-color 0.2s;
}
.artikel-content a:hover {
  color: #fff;
  text-decoration-color: rgba(255,255,255,0.35);
}
.artikel-content ul,
.artikel-content ol {
  color: var(--text-muted);
  padding-left: 20px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.artikel-content li { line-height: 1.75; font-size: 0.975rem; }
.artikel-content ul li::marker { color: var(--blue-light); }
.artikel-content ol li::marker { color: var(--blue-light); font-weight: 700; }

.artikel-callout {
  background: rgba(0,90,255,0.07);
  border: 1px solid rgba(0,90,255,0.2);
  border-left: 3px solid var(--blue);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 18px 22px;
  margin: 32px 0;
}
.artikel-callout--orange {
  background: rgba(255,165,0,0.07);
  border-color: rgba(255,165,0,0.2);
  border-left-color: var(--orange);
}
.artikel-callout--green {
  background: rgba(34,197,94,0.07);
  border-color: rgba(34,197,94,0.2);
  border-left-color: #22c55e;
}
.artikel-callout--purple {
  background: rgba(168,85,247,0.07);
  border-color: rgba(168,85,247,0.2);
  border-left-color: #a855f7;
}
.artikel-callout p {
  color: var(--text) !important;
  margin: 0 !important;
  font-size: 0.95rem;
  line-height: 1.7;
}

.artikel-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 48px 0;
}

/* ── Aside ── */
.artikel-aside {
  position: sticky;
  top: 110px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.aside-block {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.aside-block__title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 14px;
}
.aside-toc {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.aside-toc a {
  font-size: 0.83rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.4;
}
.aside-toc a::before {
  content: '›';
  color: var(--border);
  flex-shrink: 0;
  font-size: 0.72rem;
  margin-top: 2px;
}
.aside-toc a:hover { color: var(--text); }

.aside-links { display: flex; flex-direction: column; gap: 8px; }
.aside-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  padding: 10px 12px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s, transform 0.15s;
}
.aside-link:hover {
  border-color: rgba(61,127,255,0.4);
  transform: translateX(3px);
}
.aside-link__icon {
  width: 30px;
  height: 30px;
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.aside-link__icon--blue   { background: rgba(0,90,255,0.12); color: var(--blue-light); }
.aside-link__icon--orange { background: rgba(255,165,0,0.12); color: var(--orange); }
.aside-link__icon--green  { background: rgba(34,197,94,0.12); color: #4ade80; }
.aside-link__icon--purple { background: rgba(168,85,247,0.12); color: #c084fc; }
.aside-link__icon svg { width: 13px; height: 13px; }
.aside-link__text {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}

.aside-cta {
  background: linear-gradient(135deg, #0d1628 0%, #0d1a38 100%);
  border: 1px solid rgba(0,90,255,0.3);
  border-radius: var(--radius);
  padding: 22px;
  text-align: center;
}
.aside-cta p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.6;
}
.aside-cta .btn { padding: 10px 20px; font-size: 0.85rem; }

/* ── Responsive ── */
@media (max-width: 960px) {
  .artikel-layout {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 48px 0 80px;
  }
  .artikel-aside { position: static; }
}
@media (max-width: 640px) {
  .artikel-hero { padding: 120px 0 48px; }
  .artikel-hero h1 { letter-spacing: -1px; }
}