:root {
  --tuva-ink: #10273d;
  --tuva-slate: #4e6173;
  --tuva-panel: #ffffff;
  --tuva-border: #dbe4ec;
  --tuva-bg-start: #eef3f9;
  --tuva-bg-end: #f6f9fc;
  --tuva-shadow: 0 18px 40px rgba(16, 39, 61, 0.12);
  --tuva-font-base: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell,
    "Noto Sans", sans-serif, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial,
    sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  --tuva-font-mono: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
}

body {
  font-family: var(--tuva-font-base);
  line-height: 1.65;
  background: linear-gradient(135deg, var(--tuva-bg-start), var(--tuva-bg-end));
  padding-top: 0 !important;
}

input,
button,
select,
textarea {
  font-family: var(--tuva-font-base);
}

#quarto-header {
  display: none !important;
}

.global-blog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 0;
  padding: 1.1rem 1.4rem 0.7rem;
  position: sticky;
  top: 0;
  z-index: 1000;
  background: linear-gradient(135deg, var(--tuva-bg-start), var(--tuva-bg-end));
}

.blog-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
}

.blog-brand img {
  width: 34px;
  height: 34px;
  border-radius: 9px;
}

.blog-brand span {
  font-family: var(--tuva-font-base);
  color: var(--tuva-ink);
  font-size: clamp(1.2rem, 2.2vw, 1.7rem);
  font-weight: 700;
  letter-spacing: 0;
  white-space: nowrap;
}

.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-about-link {
  color: #2f506b;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.96rem;
  line-height: 1;
}

.header-about-link:hover {
  color: var(--tuva-ink);
  text-decoration: underline;
}

.global-article-search {
  margin-left: 0;
}

.global-article-search input {
  width: min(460px, 78vw);
  border: 1px solid #c3d0dc;
  border-radius: 999px;
  background: #ffffff;
  color: var(--tuva-ink);
  padding: 0.65rem 1rem;
  font-size: 0.95rem;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.global-article-search input:focus {
  outline: 0;
  border-color: #7ea0bc;
  box-shadow: 0 0 0 4px rgba(126, 160, 188, 0.22);
}

#quarto-content {
  margin: 0;
  max-width: none;
  padding: 0.5rem 1.5rem 2.8rem;
}

main.content {
  margin-left: 0 !important;
  max-width: 100% !important;
}

main#quarto-document-content {
  padding-top: 0.2rem;
}

.is-home #quarto-margin-sidebar {
  display: none !important;
}

.is-home .landing-shell {
  max-width: 1320px;
  margin: 0 auto;
  padding-top: 1.5rem;
}

.is-home #title-block-header {
  display: none !important;
}

.is-home #quarto-content {
  display: block !important;
  width: 100% !important;
}

.article-grid {
  display: grid;
  gap: 1.7rem;
  grid-template-columns: repeat(3, minmax(280px, 380px));
  justify-content: center;
}

.article-card {
  border: 1px solid var(--tuva-border);
  border-radius: 1rem;
  background: var(--tuva-panel);
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(16, 39, 61, 0.08);
  animation: rise-in 560ms ease both;
}

.article-card:nth-child(2) {
  animation-delay: 90ms;
}

.article-card:nth-child(3) {
  animation-delay: 180ms;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.article-card-link {
  display: block;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

.article-card img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  background: #e6eef6;
}

.card-body {
  padding: 1.05rem 1.1rem 1.2rem;
}

.card-body h3 {
  margin: 0 0 0.45rem;
  color: var(--tuva-ink);
  font-size: 1.21rem;
  font-weight: 700;
  line-height: 1.25;
}

.card-author {
  margin: 0;
  color: #5d7184;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.25;
}

.card-date {
  margin: 0.08rem 0 0.78rem;
  color: #66798a;
  font-size: 0.92rem;
  line-height: 1.25;
}

.card-copy {
  margin: 0 0 1.05rem;
  color: var(--tuva-slate);
  line-height: 1.5;
  min-height: 5.1em;
}

.card-body > p:last-child {
  margin: 0;
}

.card-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: #cb5027;
  font-weight: 700;
}

.card-cta::after {
  content: "->";
}

.article-card:hover {
  transform: translateY(-3px);
  border-color: #c7d5e1;
  box-shadow: var(--tuva-shadow);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.no-results {
  margin: 1rem 0 0;
  border: 1px solid #f3c8b8;
  border-radius: 0.8rem;
  background: #ffe8df;
  color: #8f3214;
  padding: 0.85rem 1rem;
}

@media (max-width: 1100px) {
  .is-home .landing-shell {
    max-width: 980px;
  }

  .article-grid {
    grid-template-columns: repeat(2, minmax(280px, 420px));
  }
}

@media (max-width: 760px) {
  .global-blog-header {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.9rem 0.9rem 0.65rem;
  }

  #quarto-content {
    padding: 0.35rem 0.9rem 2.1rem;
  }

  .is-home .landing-shell {
    padding-top: 1rem;
  }

  .header-actions {
    width: 100%;
    gap: 0.6rem;
  }

  .global-article-search {
    width: auto;
    flex: 1 1 auto;
  }

  .global-article-search input {
    width: 100%;
  }

  .article-grid {
    gap: 1.15rem;
    grid-template-columns: minmax(260px, 420px);
    justify-content: stretch;
  }
}