/*
 * Layout and components
 *
 * Sidebar, content column and the pieces built on top of them. Originally
 * Hyde by @mdo (MIT). Everything here reads its colours and spacing from the
 * tokens declared in poole.css.
 *
 * Contents
 *
 * Sidebar
 * Content column
 * Home feed
 * Post footer and related posts
 * Posts archive
 * About page
 * Responsive
 */


/*
 * Sidebar
 *
 * A banner above the content on phones, a fixed rail from tablets up.
 */

.sidebar {
  padding: 2rem 1.25rem 1.75rem;
  text-align: center;
  color: var(--sidebar-text);
  background-color: var(--sidebar-bg);
  background-image: linear-gradient(160deg, var(--sidebar-bg-alt) 0%, var(--sidebar-bg) 62%);
}

.sidebar a {
  color: var(--sidebar-strong);
}

/* In dark mode the rail and the page are close in tone, so give it an edge */
@media (prefers-color-scheme: dark) {
  .sidebar {
    border-right: 1px solid rgba(255, 255, 255, 0.07);
  }
}

@media (min-width: 48em) {
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-w);
    padding: 2.25rem 1.5rem;
    text-align: left;
    overflow-y: auto;
    /* Identity at the top, footer pushed to the bottom */
    display: flex;
    flex-direction: column;
  }
}

.sidebar-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 22rem;
  margin: 0 auto;
  width: 100%;
}
@media (min-width: 48em) {
  .sidebar-inner {
    max-width: none;
    flex: 1;
    gap: 1.75rem;
  }
}

/* Identity */
.sidebar-about {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}
@media (min-width: 48em) {
  .sidebar-about {
    align-items: flex-start;
  }
}

.sidebar-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  flex-shrink: 0;
  border-radius: 50%;
  background-image: linear-gradient(135deg, #4b8fd0 0%, #2f5f96 100%);
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
}
.sidebar-avatar:hover {
  text-decoration: none;
  color: #fff;
}

.sidebar-about h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.018em;
  color: var(--sidebar-strong);
}
.sidebar-about h1 a:hover {
  text-decoration: none;
  opacity: 0.85;
}

.sidebar-byline {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--sidebar-text);
}
.sidebar-byline strong {
  display: block;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 600;
}

.sidebar .lead {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--sidebar-text);
}

/* Nav */
.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
@media (max-width: 47.99em) {
  .sidebar-nav {
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.35rem;
  }
}

.sidebar-nav-item {
  position: relative;
  display: block;
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  color: var(--sidebar-text) !important;
  transition: background-color 0.15s ease, color 0.15s ease;
}
a.sidebar-nav-item:hover,
a.sidebar-nav-item:focus {
  background-color: var(--sidebar-hover);
  color: var(--sidebar-strong) !important;
  text-decoration: none;
}
.sidebar-nav-item.active {
  font-weight: 600;
  color: var(--sidebar-strong) !important;
  background-color: var(--sidebar-hover);
}
@media (min-width: 48em) {
  .sidebar-nav-item {
    padding-left: 0.75rem;
  }
  .sidebar-nav-item.active::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.45rem;
    bottom: 0.45rem;
    width: 2px;
    border-radius: 2px;
    background-color: #6cb6ff;
  }
}

/* Social icons */
.sidebar-social {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
}
@media (min-width: 48em) {
  .sidebar-social {
    justify-content: flex-start;
  }
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--sidebar-line);
  transition: background-color 0.15s ease, transform 0.15s ease, border-color 0.15s ease;
}
.social-link:hover {
  background-color: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.28);
  transform: translateY(-2px);
  text-decoration: none;
}

.social-icon {
  width: 1rem;
  height: 1rem;
  fill: rgba(255, 255, 255, 0.75);
  transition: fill 0.15s ease;
}
.social-link:hover .social-icon {
  fill: #fff;
}

/* Footer */
.sidebar-footer {
  margin-top: auto;
  padding-top: 1.5rem;
  font-size: 0.76rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.38);
}
.sidebar-footer p {
  margin: 0 0 0.25rem;
}
.sidebar-footer a {
  color: rgba(255, 255, 255, 0.55);
}
.sidebar-footer a:hover {
  color: rgba(255, 255, 255, 0.85);
}
@media (max-width: 47.99em) {
  .sidebar-footer {
    margin-top: 0.5rem;
    border-top: 1px solid var(--sidebar-line);
  }
}


/*
 * Content column
 */

.content {
  padding-top: 3rem;
  padding-bottom: 4rem;
}

@media (min-width: 48em) {
  .content {
    max-width: var(--measure);
    margin-left: calc(var(--sidebar-w) + 2.5rem);
    margin-right: 2rem;
    padding-top: 4rem;
  }
}

@media (min-width: 76em) {
  .content {
    margin-left: calc(var(--sidebar-w) + 4.5rem);
    margin-right: 3rem;
  }
}

/* Once there is room to spare, centre the column in the leftover space */
@media (min-width: 96em) {
  .content {
    margin-left: var(--sidebar-w);
    margin-right: 0;
    padding-left: 3rem;
    padding-right: 3rem;
    max-width: calc(var(--measure) + 6rem);
  }
}


/*
 * Home feed
 */

.posts {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.feed-post {
  padding-bottom: 2.25rem;
  margin-bottom: 2.25rem;
  border-bottom: 1px solid var(--border);
}
.feed-post:last-child {
  border-bottom: none;
}

.feed-post .post-title {
  font-size: 1.5rem;
  margin-bottom: 0.4rem;
}

.feed-post .post-meta {
  margin-bottom: 0.9rem;
}

.feed-excerpt {
  color: var(--text);
}
.feed-excerpt > :last-child {
  margin-bottom: 0;
}

.feed-more {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.9rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--accent);
}
.feed-more:hover {
  text-decoration: none;
  gap: 0.6rem;
}
.feed-more::after {
  content: "\2192";
  transition: transform 0.15s ease;
}


/*
 * Post footer and related posts
 */

.post-footer {
  margin-top: 3rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
}

.post-nav {
  display: grid;
  gap: 0.6rem;
}
@media (min-width: 34em) {
  .post-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.post-nav-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.15s ease;
}
.post-nav-item:hover {
  border-color: var(--border-strong);
  background-color: var(--bg-subtle);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

/* When there is no previous post, push a lone "next" to the right */
.post-nav-next:only-child {
  grid-column: -2;
  text-align: right;
}

.post-nav-label {
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.post-nav-title {
  font-size: 0.92rem;
  font-weight: 500;
  line-height: 1.4;
  color: var(--text-strong);
}
.post-nav-item:hover .post-nav-title {
  color: var(--accent);
}

.related {
  margin-top: 2.5rem;
}
.related h2 {
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: none;
  padding-bottom: 0;
}

.related-posts {
  padding-left: 0;
  margin: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
}
.related-posts li {
  margin: 0;
}
.related-posts a {
  display: block;
  padding: 0.8rem 1rem;
  background-color: var(--bg-subtle);
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--text-strong);
  font-weight: 500;
  line-height: 1.4;
  transition: all 0.15s ease;
}
.related-posts a:hover {
  background-color: var(--bg);
  border-color: var(--border-strong);
  color: var(--accent);
  text-decoration: none;
  transform: translateX(3px);
  box-shadow: var(--shadow-sm);
}
.related-posts small {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-faint);
}
.related-posts a:hover small {
  color: var(--text-muted);
}


/*
 * Posts archive
 */

.posts-archive {
  margin-top: 1rem;
}

.archive-year {
  margin-bottom: 2.5rem;
}
.archive-year:last-child {
  margin-bottom: 0;
}

.archive-year-title {
  margin: 0 0 0.5rem;
  padding-bottom: 0.4rem;
  font-size: 0.95rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.archive-posts {
  display: flex;
  flex-direction: column;
}

.archive-post {
  border-bottom: 1px solid var(--border);
}
.archive-post:last-child {
  border-bottom: none;
}

.archive-post-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0.75rem;
  margin: 0 -0.75rem;
  border-radius: var(--radius);
  transition: background-color 0.15s ease;
}
.archive-post-link:hover {
  background-color: var(--bg-subtle);
  text-decoration: none;
}

.archive-post-content {
  flex: 1;
  min-width: 0;
}

.archive-post-title {
  margin: 0 0 0.25rem;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0;
  color: var(--text-strong);
  transition: color 0.15s ease;
}
.archive-post-link:hover .archive-post-title {
  color: var(--accent);
}

.archive-post-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-faint);
}
.archive-post-date {
  font-variant-numeric: tabular-nums;
}
.archive-reading-time::before {
  content: "\00b7";
  margin-right: 0.5rem;
  color: var(--border-strong);
}

.archive-post-arrow {
  flex-shrink: 0;
  color: var(--border-strong);
  font-size: 1.05rem;
  line-height: 1;
  transition: color 0.15s ease, transform 0.15s ease;
}
.archive-post-link:hover .archive-post-arrow {
  color: var(--accent);
  transform: translateX(3px);
}


/*
 * About page
 */

.about-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.75rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.about-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  flex-shrink: 0;
  border-radius: 50%;
  background-image: linear-gradient(135deg, #4b8fd0 0%, #2f5f96 100%);
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  box-shadow: var(--shadow);
}

.about-header h2 {
  margin: 0 0 0.15rem;
  padding: 0;
  border: none;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
  color: var(--text-strong);
}

.about-title {
  margin: 0;
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--accent);
}

/* Role cards */
.about-roles {
  display: grid;
  gap: 0.6rem;
  margin: 1.5rem 0;
}
@media (min-width: 34em) {
  .about-roles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.role-card {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.85rem 1rem;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.15s ease;
}
.role-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.role-icon {
  font-size: 1.05rem;
  line-height: 1.4;
  flex-shrink: 0;
}

.role-details {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}
.role-details strong {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-strong);
}
.role-details span {
  font-size: 0.82rem;
  line-height: 1.4;
  color: var(--text-muted);
}

/* Career timeline */
.timeline {
  margin: 1.5rem 0;
  padding-left: 1.15rem;
  border-left: 2px solid var(--border);
  list-style: none;
}

.timeline li {
  position: relative;
  margin-bottom: 1.4rem;
  padding-left: 0.25rem;
}
.timeline li:last-child {
  margin-bottom: 0;
}
.timeline li::before {
  content: "";
  position: absolute;
  left: calc(-1.15rem - 6px - 1px);
  top: 0.5rem;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background-color: var(--bg);
  border: 2px solid var(--border-strong);
}
.timeline li.is-current::before {
  background-color: var(--accent);
  border-color: var(--accent);
}

.timeline-when {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
}
.timeline-what {
  display: block;
  margin-top: 0.1rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-strong);
}
.timeline-detail {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text-muted);
}

/* Patents */
.patent-list {
  display: grid;
  gap: 0.6rem;
  margin: 1.5rem 0;
  padding-left: 0;
  list-style: none;
}
.patent-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  margin: 0;
  padding: 0.85rem 1rem;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border);
  border-left: 3px solid var(--border-strong);
  border-radius: var(--radius);
  transition: all 0.15s ease;
}
.patent-item:hover {
  border-left-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.patent-title {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-strong);
}

.patent-meta {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.patent-with {
  margin-top: 0.1rem;
  font-size: 0.8rem;
  font-style: italic;
  color: var(--text-faint);
}

/* The pending list is long, so it folds away. Add `open` to expand by default. */
.patent-more {
  margin: 1.5rem 0;
}
.patent-more > summary {
  cursor: pointer;
  padding: 0.7rem 1rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-strong);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  list-style: none;
  transition: all 0.15s ease;
}
.patent-more > summary::-webkit-details-marker {
  display: none;
}
.patent-more > summary::before {
  content: "\25B8";
  display: inline-block;
  margin-right: 0.5rem;
  color: var(--text-faint);
  transition: transform 0.15s ease;
}
.patent-more[open] > summary::before {
  transform: rotate(90deg);
}
.patent-more > summary:hover {
  border-color: var(--border-strong);
  color: var(--accent);
}
.patent-more[open] > summary {
  margin-bottom: 0.6rem;
}
.patent-more .patent-list {
  margin-top: 0;
}

/* Contact / elsewhere */
.about-social {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 0.6rem;
  margin: 1.5rem 0;
}

.about-social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 0.9rem;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-strong);
  font-weight: 500;
  font-size: 0.88rem;
  transition: all 0.15s ease;
}
.about-social-link:hover {
  border-color: var(--border-strong);
  color: var(--accent);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.about-social-icon {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
  fill: currentColor;
}

.about-social-handle {
  display: block;
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--text-faint);
}
.about-social-link:hover .about-social-handle {
  color: var(--text-muted);
}


/*
 * Responsive
 */

@media (max-width: 33.99em) {
  .about-header {
    gap: 0.85rem;
  }
  .about-avatar {
    width: 3.25rem;
    height: 3.25rem;
    font-size: 1.2rem;
  }
  .about-header h2 {
    font-size: 1.35rem;
  }
  .page-title,
  .post-title {
    font-size: 1.6rem;
  }
  .feed-post .post-title {
    font-size: 1.35rem;
  }
  .archive-post-arrow {
    display: none;
  }
  .pagination {
    flex-direction: column;
  }
}