/* ==========================================================================
   Article page (sn-art__*). Uses tokens and buttons from main.css.
   ========================================================================== */

/* ---------- Hero (dark; header is transparent above it) ---------- */
.sn-art__hero {
  position: relative;
  margin-top: calc(var(--sn-hd-h) * -1);
  padding: calc(var(--sn-hd-h) + 54px) 0 52px;
  background:
    radial-gradient(900px 420px at 85% 0%, rgba(20, 75, 173, 0.55), rgba(20, 75, 173, 0) 70%),
    var(--sn-ink);
  overflow: hidden;
}
.sn-art__crumbs { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; font-size: 14px; }
.sn-art__crumb { color: var(--color-text-inverse-2); transition: color var(--duration-base) ease; }
a.sn-art__crumb:hover { color: #ffffff; text-decoration: underline; }
.sn-art__crumb--current { color: #ffffff; font-weight: 600; }
.sn-art__crumb-sep { width: 12px; height: 12px; opacity: 0.7; filter: brightness(0) invert(1); }
.sn-art__category {
  display: inline-block;
  margin-bottom: 18px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-pill);
}
.sn-art__title {
  max-width: 920px;
  margin-bottom: 24px;
  font-size: 52px;
  line-height: 1.08;
  color: #ffffff;
  overflow-wrap: anywhere;
}
.sn-art__meta { display: flex; flex-wrap: wrap; gap: 10px 28px; }
.sn-art__meta-item { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; color: rgba(255, 255, 255, 0.86); }
.sn-art__meta-item img { width: 16px; height: 16px; filter: brightness(0) invert(1); }

/* ---------- Layout ---------- */
.sn-art__body { background: #ffffff; padding-top: 64px; }
.sn-art__layout { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 64px; align-items: start; }
.sn-art__layout > * { min-width: 0; }
.sn-art__article { max-width: 820px; }

.sn-art__figure { margin-bottom: 36px; }
.sn-art__figure > img { width: 100%; height: auto; aspect-ratio: 2 / 1; object-fit: cover; border-radius: 14px; background: var(--sn-line); }
.sn-art__caption { margin-top: 12px; font-size: 14px; line-height: 1.5; color: var(--sn-mute); }

.sn-art__intro {
  margin-bottom: 36px;
  padding-left: 22px;
  border-left: 4px solid var(--sn-blue);
  font-family: var(--sn-tight);
  font-size: 21px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--sn-ink);
}
.sn-art__intro p { margin: 0; color: var(--sn-ink); }
.sn-art__intro p + p { margin-top: 14px; }

/* ---------- Article text (Markdown output) ---------- */
.sn-art__content { font-size: 18px; line-height: 1.75; color: var(--sn-ink); overflow-wrap: break-word; }
.sn-art__content > :first-child { margin-top: 0; }
.sn-art__content p { margin: 0 0 20px; color: var(--sn-ink); }
.sn-art__content h2 { margin: 48px 0 16px; font-size: 32px; line-height: 1.15; color: var(--sn-ink); }
.sn-art__content h3 { margin: 36px 0 12px; font-size: 24px; line-height: 1.25; color: var(--sn-ink); }
.sn-art__content h4 { margin: 28px 0 10px; font-size: 20px; color: var(--sn-ink); }
.sn-art__content strong { font-weight: 700; color: var(--sn-ink); }
.sn-art__content a { color: var(--sn-blue); text-decoration: underline; text-underline-offset: 3px; transition: color var(--duration-base) ease; }
.sn-art__content a:hover, .sn-art__content a:focus-visible { color: var(--sn-ink); }
.sn-art__content ul, .sn-art__content ol { margin: 0 0 24px; padding-left: 28px; }
.sn-art__content ul { list-style: disc; }
.sn-art__content ol { list-style: decimal; }
.sn-art__content ul ul { list-style: circle; margin: 8px 0 0; }
.sn-art__content li { margin-bottom: 10px; padding-left: 4px; color: var(--sn-ink); }
.sn-art__content li::marker { color: var(--sn-blue); font-weight: 700; }
.sn-art__content blockquote {
  margin: 28px 0;
  padding: 20px 26px;
  border-left: 4px solid var(--sn-blue);
  border-radius: 0 12px 12px 0;
  background: rgba(20, 75, 173, 0.06);
}
.sn-art__content blockquote p { margin: 0; font-size: 18px; font-style: italic; }
.sn-art__content blockquote p + p { margin-top: 12px; }
.sn-art__content hr { margin: 40px 0; border: 0; border-top: 1px solid var(--sn-line); }
.sn-art__content img { margin: 24px 0; border-radius: 12px; }
.sn-art__content code { padding: 2px 6px; font-size: 0.9em; border-radius: 5px; background: rgba(20, 75, 173, 0.08); }
.sn-art__content table { display: block; width: 100%; max-width: 100%; margin: 28px 0; overflow-x: auto; font-size: 16px; }
.sn-art__content th, .sn-art__content td { padding: 12px 16px; text-align: left; vertical-align: top; border: 1px solid var(--sn-line); }
.sn-art__content th { font-family: var(--sn-tight); font-weight: 600; color: #ffffff; background: var(--sn-ink); }
.sn-art__content tbody tr:nth-child(even) td { background: rgba(20, 75, 173, 0.04); }

/* ---------- Conclusion and tags ---------- */
.sn-art__conclusion {
  margin-top: 48px;
  padding: 32px 34px;
  border: 1px solid var(--sn-line);
  border-radius: 14px;
  background: rgba(20, 75, 173, 0.05);
}
.sn-art__conclusion-title { margin-bottom: 14px; font-size: 28px; color: var(--sn-ink); }
.sn-art__conclusion p { margin: 0; font-size: 17px; line-height: 1.7; color: var(--sn-ink); }
.sn-art__conclusion p + p { margin-top: 12px; }
.sn-art__conclusion a { color: var(--sn-blue); text-decoration: underline; text-underline-offset: 3px; transition: color var(--duration-base) ease; }
.sn-art__conclusion a:hover, .sn-art__conclusion a:focus-visible { color: var(--sn-ink); }
.sn-art__tags { position: relative; margin-top: 28px; padding-left: 30px; font-size: 14px; line-height: 1.5; color: var(--sn-mute); }
.sn-art__tags img { position: absolute; left: 0; top: 2px; width: 18px; height: 18px; }

/* ---------- Sidebar CTA ---------- */
.sn-art__aside { position: sticky; top: calc(var(--sn-hd-h) + 24px); }
.sn-art__cta { padding: 32px 30px; border-radius: 16px; }
.sn-art__cta-title { margin-bottom: 14px; font-size: 28px; line-height: 1.15; color: #ffffff; }
.sn-art__cta-text { margin-bottom: 24px; font-size: 16px; line-height: 1.6; color: rgba(255, 255, 255, 0.86); }
.sn-art__cta-phone {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  font-family: var(--sn-tight);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
  color: #ffffff;
  font-variant-numeric: lining-nums tabular-nums;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color var(--duration-base) ease, border-color var(--duration-base) ease;
}
.sn-art__cta-phone img { width: 20px; height: 20px; flex: none; }
.sn-art__cta-phone:hover, .sn-art__cta-phone:focus-visible { color: #ffffff; border-bottom-color: #ffffff; }

/* ---------- Related ---------- */
.sn-art__related { background: rgba(20, 75, 173, 0.05); }
.sn-art__related-title { margin-bottom: 32px; font-size: 36px; color: var(--sn-ink); }
.sn-art__related-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.sn-art__related-grid > * { min-width: 0; }
.sn-art__rcard {
  height: 100%;
  background: #ffffff;
  border: 1px solid var(--sn-line);
  border-radius: 14px;
  transition: box-shadow var(--duration-base) ease, transform var(--duration-base) ease, border-color var(--duration-base) ease;
}
.sn-art__rcard:hover { border-color: var(--sn-blue); box-shadow: var(--sn-shadow); transform: translateY(-3px); }
.sn-art__rcard-link { display: flex; flex-direction: column; height: 100%; padding: 26px; cursor: pointer; }
.sn-art__rcard-ico { position: relative; display: block; width: 48px; height: 48px; margin-bottom: 18px; border-radius: 50%; background: var(--sn-ink); }
.sn-art__rcard-ico > img { position: absolute; top: 50%; left: 50%; width: 22px; height: 22px; transform: translate(-50%, -50%); }
.sn-art__rcard-title { margin-bottom: 18px; font-size: 20px; line-height: 1.3; color: var(--sn-ink); overflow-wrap: anywhere; }
.sn-art__rcard-arrow { margin-top: auto; }
.sn-art__rcard-arrow img { width: 18px; height: 18px; transition: transform var(--duration-base) ease; }
.sn-art__rcard:hover .sn-art__rcard-arrow img { transform: translateX(4px); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1200px) {
  .sn-art__title { font-size: 46px; }
  .sn-art__layout { grid-template-columns: minmax(0, 1fr) 320px; gap: 44px; }
}
@media (max-width: 1024px) {
  .sn-art__title { font-size: 40px; }
  .sn-art__layout { grid-template-columns: minmax(0, 1fr); gap: 48px; }
  .sn-art__article { max-width: none; }
  .sn-art__aside { position: static; }
  .sn-art__cta { max-width: 560px; }
  .sn-art__related-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 768px) {
  .sn-art__hero { padding-top: calc(var(--sn-hd-h) + 40px); padding-bottom: 40px; }
  .sn-art__crumbs { margin-bottom: 22px; }
  .sn-art__title { font-size: 34px; }
  .sn-art__body { padding-top: 40px; }
  .sn-art__intro { font-size: 19px; }
  .sn-art__content { font-size: 17px; }
  .sn-art__content h2 { margin-top: 38px; font-size: 27px; }
  .sn-art__content h3 { font-size: 22px; }
  .sn-art__conclusion { padding: 26px 24px; }
  .sn-art__conclusion-title { font-size: 24px; }
  .sn-art__related-title { font-size: 30px; }
  .sn-art__related-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 480px) {
  .sn-art__title { font-size: 29px; }
  .sn-art__meta { flex-direction: column; gap: 8px; }
  .sn-art__intro { padding-left: 16px; font-size: 18px; }
  .sn-art__content { font-size: 16px; }
  .sn-art__content h2 { font-size: 24px; }
  .sn-art__content h3 { font-size: 20px; }
  .sn-art__content ul, .sn-art__content ol { padding-left: 22px; }
  .sn-art__content th, .sn-art__content td { padding: 10px 12px; }
  .sn-art__conclusion { padding: 22px 18px; }
  .sn-art__cta { max-width: none; padding: 26px 20px; }
  .sn-art__cta-title { font-size: 25px; }
  .sn-art__cta-phone { font-size: 24px; }
  .sn-art__rcard-link { padding: 22px; }
}
@media (max-width: 375px) {
  .sn-art__title { font-size: 26px; }
  .sn-art__cta-phone { font-size: 22px; }
}