.sp-post {
  background: var(--hd-color-bg);
  color: var(--hd-color-text-body);
  font-family: var(--hd-font-body);
  overflow-x: hidden;
}

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

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

.sp-post a {
  text-decoration: none;
  color: inherit;
}

.sp-post ul,
.sp-post ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.sp-post button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

.sp-progress {
  position: fixed;
  top: var(--hd-header-height, 72px);
  left: 0;
  width: 100%;
  height: 3px;
  background: transparent;
  z-index: 60;
  pointer-events: none;
}

.sp-progress__bar {
  height: 100%;
  width: 0%;
  background: var(--hd-color-accent);
  transition: width 0.1s linear;
}

.sp-breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--hd-color-text-muted);
  margin-bottom: 28px;
}

.sp-breadcrumbs__link {
  color: var(--hd-color-text-muted);
  transition: color var(--hd-transition);
}

.sp-breadcrumbs__link:hover {
  color: var(--hd-color-accent);
}

.sp-breadcrumbs__sep {
  display: inline-flex;
  align-items: center;
  font-size: 9px;
  color: var(--hd-color-border-strong);
}

.sp-breadcrumbs__current {
  color: var(--hd-color-text-body);
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 320px;
}

.sp-breadcrumbs a {
  color: var(--hd-color-text-muted);
}

.sp-breadcrumbs a:hover {
  color: var(--hd-color-accent);
}

.sp-hero {
  background: var(--hd-color-bg-alt);
  border-bottom: 1px solid var(--hd-color-border);
  padding: 44px 0 56px;
}

.sp-hero__inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

.sp-hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.sp-hero__grid--no-media {
  grid-template-columns: 1fr;
  max-width: 780px;
}

.sp-hero__content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.sp-hero__category {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: var(--hd-radius-pill);
  background: var(--hd-color-accent-pale);
  color: var(--hd-color-accent);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
  transition: background var(--hd-transition), transform var(--hd-transition);
}

.sp-hero__category:hover {
  background: var(--hd-color-accent-light);
  color: var(--hd-color-white);
  transform: translateY(-1px);
}

.sp-hero__category i {
  font-size: 12px;
}

.sp-hero__title {
  font-family: var(--hd-font-display);
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.15;
  font-weight: 700;
  color: var(--hd-color-text-main);
  margin: 0 0 20px;
  letter-spacing: -0.01em;
}

.sp-hero__excerpt {
  font-size: 18px;
  line-height: 1.6;
  color: var(--hd-color-text-body);
  margin: 0 0 28px;
  max-width: 60ch;
}

.sp-hero__meta {
  width: 100%;
}

.sp-hero__author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sp-hero__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--hd-color-white);
  box-shadow: var(--hd-shadow-sm);
  object-fit: cover;
}

.sp-hero__author-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sp-hero__author-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--hd-color-text-main);
}

.sp-hero__meta-sub {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--hd-color-text-muted);
}

.sp-hero__dot {
  font-size: 8px;
  color: var(--hd-color-border-strong);
}

.sp-hero__media {
  position: relative;
}

.sp-hero__media-frame {
  border-radius: var(--hd-radius-xl);
  overflow: hidden;
  box-shadow: var(--hd-shadow-lg);
  aspect-ratio: 4 / 3;
  background: var(--hd-color-border);
}

.sp-hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sp-body {
  padding: 56px 0 0;
}

.sp-body__inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

.sp-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 64px;
  align-items: start;
}

.sp-main {
  min-width: 0;
}

.sp-share {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 18px 24px;
  border-radius: var(--hd-radius-md);
  background: var(--hd-color-surface);
  border: 1px solid var(--hd-color-border);
}

.sp-share--top {
  margin-bottom: 40px;
}

.sp-share--bottom {
  margin-top: 40px;
}

.sp-share__label {
  font-size: 14px;
  font-weight: 600;
  color: var(--hd-color-text-main);
}

.sp-share__buttons {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sp-share__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--hd-color-bg-alt);
  color: var(--hd-color-primary-mid);
  font-size: 14px;
  transition: background var(--hd-transition), color var(--hd-transition), transform var(--hd-transition);
}

.sp-share__btn:hover {
  background: var(--hd-color-primary);
  color: var(--hd-color-white);
  transform: translateY(-2px);
}

.sp-share__btn--copy.sp-share__btn--copied {
  background: var(--hd-color-success);
  color: var(--hd-color-white);
}

.sp-content {
  font-size: 17px;
  line-height: 1.8;
  color: var(--hd-color-text-body);
  max-width: 72ch;
}

.sp-content > *:first-child {
  margin-top: 0;
}

.sp-content h2,
.sp-content h3,
.sp-content h4 {
  font-family: var(--hd-font-display);
  color: var(--hd-color-text-main);
  font-weight: 700;
  line-height: 1.3;
  scroll-margin-top: calc(var(--hd-header-height, 72px) + 24px);
}

.sp-content h2 {
  font-size: 28px;
  margin: 48px 0 20px;
  padding-top: 8px;
  border-top: 1px solid var(--hd-color-border);
}

.sp-content h2:first-child {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

.sp-content h3 {
  font-size: 22px;
  margin: 36px 0 16px;
}

.sp-content h4 {
  font-size: 18px;
  margin: 28px 0 14px;
}

.sp-content p {
  margin: 0 0 22px;
}

.sp-content ul,
.sp-content ol {
  margin: 0 0 22px;
  padding-left: 4px;
}

.sp-content ul li,
.sp-content ol li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  line-height: 1.7;
}

.sp-content ul li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--hd-color-accent);
}

.sp-content ol {
  counter-reset: sp-ol-counter;
}

.sp-content ol li {
  counter-increment: sp-ol-counter;
}

.sp-content ol li::before {
  content: counter(sp-ol-counter);
  position: absolute;
  left: 0;
  top: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--hd-color-accent-pale);
  color: var(--hd-color-accent);
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sp-content a {
  color: var(--hd-color-accent);
  text-decoration: underline;
  text-decoration-color: var(--hd-color-accent-light);
  text-underline-offset: 3px;
  transition: color var(--hd-transition);
}

.sp-content a:hover {
  color: var(--hd-color-primary-light);
}

.sp-content strong {
  color: var(--hd-color-text-main);
  font-weight: 700;
}

.sp-content blockquote {
  margin: 32px 0;
  padding: 24px 28px;
  border-left: 4px solid var(--hd-color-accent);
  background: var(--hd-color-highlight);
  border-radius: 0 var(--hd-radius-md) var(--hd-radius-md) 0;
  font-family: var(--hd-font-display);
  font-size: 19px;
  font-style: normal;
  color: var(--hd-color-text-main);
  line-height: 1.55;
}

.sp-content blockquote p:last-child {
  margin-bottom: 0;
}

.sp-content img {
  border-radius: var(--hd-radius-lg);
  margin: 32px 0;
  box-shadow: var(--hd-shadow-md);
}

.sp-content figure {
  margin: 32px 0;
}

.sp-content figcaption {
  margin-top: 12px;
  font-size: 14px;
  color: var(--hd-color-text-muted);
  text-align: center;
}

.sp-content hr {
  border: none;
  border-top: 1px solid var(--hd-color-border);
  margin: 40px 0;
}

.sp-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 32px 0;
  font-size: 15px;
  border-radius: var(--hd-radius-md);
  overflow: hidden;
  box-shadow: var(--hd-shadow-sm);
}

.sp-content table th {
  background: var(--hd-color-primary);
  color: var(--hd-color-white);
  text-align: left;
  padding: 14px 16px;
  font-weight: 600;
  font-family: var(--hd-font-display);
}

.sp-content table td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--hd-color-border);
  background: var(--hd-color-surface);
}

.sp-content table tr:last-child td {
  border-bottom: none;
}

.sp-content code {
  background: var(--hd-color-bg-alt);
  color: var(--hd-color-primary-mid);
  padding: 2px 7px;
  border-radius: var(--hd-radius-sm);
  font-size: 0.88em;
}

.sp-content pre {
  background: var(--hd-color-primary);
  color: var(--hd-color-accent-pale);
  padding: 20px 24px;
  border-radius: var(--hd-radius-md);
  overflow-x: auto;
  margin: 28px 0;
}

.sp-content pre code {
  background: none;
  color: inherit;
  padding: 0;
}

.sp-tags {
  margin-top: 44px;
  padding-top: 32px;
  border-top: 1px solid var(--hd-color-border);
  display: flex;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}

.sp-tags__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--hd-color-text-main);
  padding-top: 8px;
}

.sp-tags__label i {
  color: var(--hd-color-accent);
  font-size: 13px;
}

.sp-tags__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  flex: 1;
}

.sp-tags__item {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: var(--hd-radius-pill);
  background: var(--hd-color-bg-alt);
  border: 1px solid var(--hd-color-border);
  color: var(--hd-color-text-body);
  font-size: 13px;
  font-weight: 500;
  transition: background var(--hd-transition), color var(--hd-transition), border-color var(--hd-transition);
}

.sp-tags__item:hover {
  background: var(--hd-color-primary);
  border-color: var(--hd-color-primary);
  color: var(--hd-color-white);
}

.sp-author {
  margin-top: 44px;
  padding: 32px;
  border-radius: var(--hd-radius-lg);
  background: var(--hd-color-surface);
  border: 1px solid var(--hd-color-border);
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.sp-author__avatar-col {
  flex-shrink: 0;
}

.sp-author__avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--hd-color-accent-pale);
}

.sp-author__body {
  flex: 1;
  min-width: 0;
}

.sp-author__eyebrow {
  display: block;
  font-size: 13px;
  color: var(--hd-color-text-muted);
  font-weight: 500;
  margin-bottom: 4px;
}

.sp-author__name {
  font-family: var(--hd-font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--hd-color-text-main);
  margin: 0 0 10px;
}

.sp-author__bio {
  font-size: 15px;
  line-height: 1.65;
  color: var(--hd-color-text-body);
  margin: 0 0 16px;
}

.sp-author__links {
  display: flex;
  gap: 16px;
}

.sp-author__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--hd-color-accent);
  transition: gap var(--hd-transition), color var(--hd-transition);
}

.sp-author__link:hover {
  gap: 12px;
  color: var(--hd-color-primary-light);
}

.sp-author__link i {
  font-size: 12px;
}

.sp-comments {
  margin-top: 44px;
  padding-top: 40px;
  border-top: 1px solid var(--hd-color-border);
}

.sp-sidebar {
  position: relative;
}

.sp-sidebar__sticky {
  position: sticky;
  top: calc(var(--hd-header-height, 72px) + 24px);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sp-widget {
  background: var(--hd-color-surface);
  border: 1px solid var(--hd-color-border);
  border-radius: var(--hd-radius-lg);
  padding: 24px;
}

.sp-widget__title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--hd-font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--hd-color-text-main);
  margin: 0 0 18px;
}

.sp-widget__title i {
  color: var(--hd-color-accent);
  font-size: 14px;
}

.sp-toc__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 360px;
  overflow-y: auto;
  padding-right: 4px;
}

.sp-toc__list::-webkit-scrollbar {
  width: 4px;
}

.sp-toc__list::-webkit-scrollbar-thumb {
  background: var(--hd-color-border-strong);
  border-radius: var(--hd-radius-pill);
}

.sp-toc__item {
  border-left: 2px solid transparent;
}

.sp-toc__link {
  display: block;
  padding: 8px 0 8px 16px;
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--hd-color-text-muted);
  transition: color var(--hd-transition);
}

.sp-toc__link:hover {
  color: var(--hd-color-text-main);
}

.sp-toc__item--active {
  border-left-color: var(--hd-color-accent);
}

.sp-toc__item--active .sp-toc__link {
  color: var(--hd-color-accent);
  font-weight: 600;
}

.sp-categories__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sp-categories__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--hd-radius-sm);
  font-size: 14px;
  color: var(--hd-color-text-body);
  transition: background var(--hd-transition), color var(--hd-transition);
}

.sp-categories__link:hover {
  background: var(--hd-color-bg-alt);
  color: var(--hd-color-text-main);
}

.sp-categories__link--active {
  background: var(--hd-color-accent-pale);
  color: var(--hd-color-accent);
  font-weight: 600;
}

.sp-categories__count {
  font-size: 12px;
  color: var(--hd-color-text-light);
  background: var(--hd-color-bg-alt);
  padding: 2px 8px;
  border-radius: var(--hd-radius-pill);
  flex-shrink: 0;
}

.sp-categories__link--active .sp-categories__count {
  background: var(--hd-color-surface);
  color: var(--hd-color-accent);
}

.sp-related {
  margin-top: 80px;
  padding: 64px 0 80px;
  background: var(--hd-color-bg-alt);
  border-top: 1px solid var(--hd-color-border);
}

.sp-related__inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

.sp-related__header {
  margin-bottom: 36px;
}

.sp-related__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--hd-color-accent);
  margin-bottom: 10px;
}

.sp-related__eyebrow i {
  font-size: 12px;
}

.sp-related__title {
  font-family: var(--hd-font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--hd-color-text-main);
  margin: 0;
}

.sp-related__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.sp-related__card {
  display: flex;
  flex-direction: column;
  background: var(--hd-color-surface);
  border: 1px solid var(--hd-color-border);
  border-radius: var(--hd-radius-lg);
  overflow: hidden;
  transition: transform var(--hd-transition), box-shadow var(--hd-transition), border-color var(--hd-transition);
}

.sp-related__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--hd-shadow-lg);
  border-color: var(--hd-color-border-strong);
}

.sp-related__media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--hd-color-bg-alt);
}

.sp-related__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--hd-transition-slow);
}

.sp-related__card:hover .sp-related__image {
  transform: scale(1.05);
}

.sp-related__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--hd-color-text-light);
  font-size: 28px;
}

.sp-related__body {
  padding: 20px 22px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.sp-related__category {
  font-size: 12px;
  font-weight: 600;
  color: var(--hd-color-accent);
  margin-bottom: 8px;
}

.sp-related__card-title {
  font-family: var(--hd-font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--hd-color-text-main);
  margin: 0 0 12px;
  flex: 1;
}

.sp-related__meta {
  font-size: 13px;
  color: var(--hd-color-text-muted);
}

.sp-hero__media-frame,
.sp-related__media {
  background-color: var(--hd-color-bg-alt);
}

.sp-hero__image,
.sp-related__image {
  opacity: 0;
  animation: sp-image-in 0.4s ease forwards;
}

.sp-hero__avatar,
.sp-author__avatar {
  background-color: var(--hd-color-bg-alt);
}

@keyframes sp-image-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@media (min-width: 1025px) {
  .sp-toc__link:focus-visible,
  .sp-categories__link:focus-visible,
  .sp-tags__item:focus-visible,
  .sp-share__btn:focus-visible,
  .sp-author__link:focus-visible,
  .sp-hero__category:focus-visible,
  .sp-related__card:focus-visible,
  .sp-breadcrumbs__link:focus-visible {
    outline: 2px solid var(--hd-color-accent);
    outline-offset: 2px;
  }
}

@media (max-width: 1100px) {
  .sp-layout {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 44px;
  }

  .sp-hero__grid {
    gap: 40px;
  }
}

@media (max-width: 900px) {
  .sp-hero {
    padding: 32px 0 40px;
  }

  .sp-hero__inner {
    padding: 0 24px;
  }

  .sp-hero__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .sp-hero__media {
    order: -1;
  }

  .sp-hero__media-frame {
    aspect-ratio: 16 / 9;
  }

  .sp-body__inner {
    padding: 0 24px;
  }

  .sp-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .sp-sidebar__sticky {
    position: static;
  }

  .sp-widget {
    padding: 20px;
  }

  .sp-toc__list {
    max-height: none;
  }

  .sp-related__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media (max-width: 640px) {
  .sp-progress {
    top: 0;
  }

  .sp-hero__inner {
    padding: 0 18px;
  }

  .sp-breadcrumbs {
    font-size: 12px;
    margin-bottom: 20px;
  }

  .sp-breadcrumbs__current {
    max-width: 160px;
  }

  .sp-hero__excerpt {
    font-size: 16px;
  }

  .sp-body {
    padding: 40px 0 0;
  }

  .sp-body__inner {
    padding: 0 18px;
  }

  .sp-share {
    padding: 16px 18px;
  }

  .sp-content {
    font-size: 16px;
    line-height: 1.75;
  }

  .sp-content h2 {
    font-size: 23px;
    margin: 36px 0 16px;
  }

  .sp-content h3 {
    font-size: 19px;
  }

  .sp-content table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  .sp-author {
    flex-direction: column;
    padding: 24px;
  }

  .sp-related {
    padding: 48px 0 56px;
    margin-top: 56px;
  }

  .sp-related__grid {
    grid-template-columns: 1fr;
  }

  .sp-related__title {
    font-size: 23px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sp-post * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}