/* ==========================================================================
   Consize blog: hero + card grid
   Applies to any Material blog listing page (index, category, archive).
   Individual post pages are not affected.
   ========================================================================== */

:root {
  --blog-ink: #1f1e1b;
  --blog-muted: #6b6a66;
  --blog-line: #e6e4df;
  --blog-card: #ffffff;
  --blog-chip: #f7f6f3;
  --blog-hero: #edece9;
  --blog-glow: rgba(255, 255, 255, 0.95);
  --blog-sheen: rgba(255, 255, 255, 0.65);
  --blog-lift: 0 16px 32px -16px rgba(31, 30, 27, 0.24), 0 2px 6px rgba(31, 30, 27, 0.04);

  /* thumbnail tints, cycled across cards */
  --blog-thumb-1: #efedf3;
  --blog-thumb-2: #e7e8e2;
  --blog-thumb-3: #e4eaf0;

  --blog-arrow: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12h14M13 6l6 6-6 6'/%3E%3C/svg%3E");
}

[data-md-color-scheme="slate"] {
  --blog-ink: #f2f1ee;
  --blog-muted: #a3a29e;
  --blog-line: rgba(255, 255, 255, 0.1);
  --blog-card: rgba(255, 255, 255, 0.03);
  --blog-chip: rgba(255, 255, 255, 0.06);
  --blog-hero: #1a1c22;
  --blog-glow: rgba(255, 255, 255, 0.06);
  --blog-sheen: rgba(255, 255, 255, 0.05);
  --blog-lift: 0 16px 32px -16px rgba(0, 0, 0, 0.7), 0 2px 6px rgba(0, 0, 0, 0.25);

  --blog-thumb-1: #2a2733;
  --blog-thumb-2: #262a27;
  --blog-thumb-3: #232a33;
}

/* --------------------------------------------------------------------------
   Page layout: hero on top, three-column card grid below
   -------------------------------------------------------------------------- */

.md-content__inner:has(> .md-post--excerpt) {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin-bottom: 4rem;
}

/* Material adds spacer pseudo-elements that would become grid cells */
.md-content__inner:has(> .md-post--excerpt)::before,
.md-content__inner:has(> .md-post--excerpt)::after {
  display: none;
}

.md-content__inner:has(> .md-post--excerpt) > .md-pagination {
  grid-column: 1 / -1;
}

@media (max-width: 62em) {
  .md-content__inner:has(> .md-post--excerpt) {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 40em) {
  .md-content__inner:has(> .md-post--excerpt) {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* --------------------------------------------------------------------------
   Hero (everything written in blog/index.md)
   -------------------------------------------------------------------------- */

.md-content__inner:has(> .md-post--excerpt) > header.md-typeset {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: min(46vh, 19rem);
  margin: 0 0 1rem;
  padding: 2.5rem 1.25rem 2rem;
  text-align: center;
  background: none; /* no box, no panel */
}

.md-content__inner:has(> .md-post--excerpt) > header.md-typeset h1 {
  margin: 0;
  color: var(--blog-ink);
  font-size: clamp(1.9rem, 4.6vw, 2.7rem);
  font-weight: 650;
  letter-spacing: -0.032em;
  line-height: 1.1;
}

.md-content__inner:has(> .md-post--excerpt) > header.md-typeset p {
  margin: 1rem auto 0;
  max-width: 30rem;
  color: var(--blog-muted);
  font-size: 0.78rem;
  line-height: 1.7;
}

/* CTA row: the paragraph that holds the .blog-btn links */
.md-content__inner:has(> .md-post--excerpt) > header.md-typeset p:has(.blog-btn) {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem 1.5rem;
  margin-top: 1.6rem;
  max-width: none;
}

.blog-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  font-weight: 500;
  text-decoration: none;
}

.md-typeset .blog-btn--primary {
  padding: 0.6rem 1.25rem;
  border-radius: 999px;
  background: var(--blog-ink);
  color: var(--md-default-bg-color);
}

.md-typeset .blog-btn--primary:hover,
.md-typeset .blog-btn--primary:focus-visible {
  color: var(--md-default-bg-color);
  opacity: 0.85;
}

.md-typeset .blog-btn--link {
  color: var(--blog-ink);
}

.blog-btn--link::after {
  content: "";
  width: 0.9rem;
  height: 0.9rem;
  background: var(--md-primary-fg-color);
  -webkit-mask: var(--blog-arrow) center / contain no-repeat;
  mask: var(--blog-arrow) center / contain no-repeat;
}

.md-typeset .blog-btn--link:hover,
.md-typeset .blog-btn--link:focus-visible {
  color: var(--blog-ink);
  text-decoration: underline;
  text-underline-offset: 0.25em;
}

/* --------------------------------------------------------------------------
   Card
   -------------------------------------------------------------------------- */

.md-content__inner:has(> .md-post--excerpt) > .md-post--excerpt {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr auto;
  margin: 0;
  padding: 0.6rem 0.6rem 0.9rem;
  border: 1px solid var(--blog-line);
  border-radius: 14px;
  background: var(--blog-card);
  transition: transform 0.25s cubic-bezier(0.2, 0, 0, 1),
              box-shadow 0.25s cubic-bezier(0.2, 0, 0, 1),
              border-color 0.2s ease;
  animation: blog-rise 0.55s cubic-bezier(0.2, 0, 0, 1) backwards;
}

.md-content__inner:has(> .md-post--excerpt) > .md-post--excerpt:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--blog-ink) 24%, transparent);
  box-shadow: var(--blog-lift);
}

/* soft staggered entrance; `backwards` so it never fights the hover lift */
@keyframes blog-rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
}

.md-content__inner > .md-post--excerpt:nth-of-type(1) { animation-delay: 0.05s; }
.md-content__inner > .md-post--excerpt:nth-of-type(2) { animation-delay: 0.10s; }
.md-content__inner > .md-post--excerpt:nth-of-type(3) { animation-delay: 0.15s; }
.md-content__inner > .md-post--excerpt:nth-of-type(4) { animation-delay: 0.20s; }
.md-content__inner > .md-post--excerpt:nth-of-type(5) { animation-delay: 0.25s; }
.md-content__inner > .md-post--excerpt:nth-of-type(n + 6) { animation-delay: 0.30s; }

.md-content__inner:has(> .md-post--excerpt) > .md-post--excerpt:focus-within {
  outline: 2px solid var(--md-accent-fg-color);
  outline-offset: 2px;
}

/* Thumbnail: plain tinted panel with the logo mark in the centre */
.md-post--excerpt::before {
  content: "";
  grid-row: 1;
  aspect-ratio: 16 / 10;
  border-radius: 9px;
  background:
    url("../assets/logo-mark.png") center / 17% no-repeat,
    linear-gradient(180deg, var(--blog-sheen), transparent 65%),
    var(--blog-thumb-1);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--blog-ink) 5%, transparent);
  transition: background-size 0.35s cubic-bezier(0.2, 0, 0, 1);
}

/* Cover image: if a post puts an image before <!-- more -->, use it as the thumbnail */
.md-post--excerpt:has(.md-post__content img)::before {
  display: none;                      /* drop the logo tile */
}

.md-post--excerpt .md-post__content {
  display: contents;                  /* lets the image and title sit in the card grid directly */
}

.md-post--excerpt .md-post__content > h2 {
  grid-row: 2;
  padding: 0.95rem 0.3rem 0.5rem;     /* moved from the old .md-post__content rule */
}

.md-post--excerpt .md-post__content > p:has(img) {
  display: block;
  grid-row: 1;
  margin: 0;
}

.md-post--excerpt .md-post__content > p:has(img) img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;                  /* crops to fit, no stretching */
  border-radius: 9px;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--blog-ink) 5%, transparent);
  transition: transform 0.35s cubic-bezier(0.2, 0, 0, 1);
}

.md-post--excerpt:hover .md-post__content > p:has(img) img {
  transform: scale(1.02);
}

.md-content__inner:has(> .md-post--excerpt) > .md-post--excerpt:hover::before {
  background-size: 19%, auto;
}

.md-content__inner > .md-post--excerpt:nth-of-type(3n + 2)::before {
  background-color: var(--blog-thumb-2);
}

.md-content__inner > .md-post--excerpt:nth-of-type(3n + 3)::before {
  background-color: var(--blog-thumb-3);
}

/* Title */
.md-post--excerpt .md-post__content {
  grid-row: 2;
  padding: 0.95rem 0.3rem 0.5rem;
}

.md-post--excerpt .md-post__content h2 {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: -0.012em;
  line-height: 1.5;
}

.md-post--excerpt .md-post__content h2 a {
  color: var(--blog-ink);
}

/* Make the whole card clickable through the title link */
.md-post--excerpt .md-post__content h2 a::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: 14px;
}

/* Excerpt text is hidden to match the reference. Delete this rule to show it. */
.md-post--excerpt .md-post__content > p {
  display: none;
}

/* "Continue reading" becomes a round arrow button in the card corner */
.md-post--excerpt .md-post__action {
  position: absolute;
  right: 0.85rem;
  bottom: 0.9rem;
  margin: 0;
  pointer-events: none;
}

.md-post--excerpt .md-post__action a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.9rem;
  height: 1.9rem;
  border: 1px solid var(--blog-line);
  border-radius: 50%;
  font-size: 0; /* hide the text, keep it for screen readers */
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.md-post--excerpt .md-post__action a::after {
  content: "";
  width: 0.8rem;
  height: 0.8rem;
  background: var(--md-primary-fg-color);
  -webkit-mask: var(--blog-arrow) center / contain no-repeat;
  mask: var(--blog-arrow) center / contain no-repeat;
  transition: background-color 0.2s ease, transform 0.25s cubic-bezier(0.2, 0, 0, 1);
}

.md-post--excerpt:hover .md-post__action a {
  border-color: var(--md-primary-fg-color);
  background: var(--md-primary-fg-color);
}

.md-post--excerpt:hover .md-post__action a::after {
  background: #fff;
  transform: translateX(1px);
}

/* Footer row: category chips only */
.md-post--excerpt .md-post__header {
  grid-row: 3;
  min-height: 1.9rem;
  padding: 0 2.8rem 0 0.3rem;
}

.md-post--excerpt .md-post__authors {
  display: none;
}

.md-post--excerpt .md-post__meta .md-meta__list {
  display: block;
  margin: 0;
}

/* hide date and read time; keep only the item that holds category links */
.md-post--excerpt .md-meta__item:not(:has(.md-meta__link)) {
  display: none;
}

.md-post--excerpt .md-meta__item:has(.md-meta__link) {
  font-size: 0; /* hides the "in" text and comma separators */
}

.md-post--excerpt .md-meta__item::after {
  content: none;
}

.md-post--excerpt .md-meta__link {
  position: relative;
  z-index: 2; /* stays clickable above the card-wide title link */
  display: inline-block;
  margin: 0 0.3rem 0.2rem 0;
  padding: 0.1rem 0.55rem;
  border: 1px solid var(--blog-line);
  border-radius: 999px;
  background: var(--blog-chip);
  color: var(--blog-muted);
  font-size: 0.56rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.6;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.md-post--excerpt .md-meta__link:hover {
  color: var(--blog-ink);
  border-color: color-mix(in srgb, var(--blog-ink) 30%, transparent);
}

@media (prefers-reduced-motion: reduce) {
  .md-content__inner:has(> .md-post--excerpt) > .md-post--excerpt,
  .md-post--excerpt::before,
  .md-post--excerpt .md-post__action a,
  .md-post--excerpt .md-post__action a::after {
    transition: none;
    animation: none;
  }

  .md-content__inner:has(> .md-post--excerpt) > .md-post--excerpt:hover {
    transform: none;
  }
}

/* ==========================================================================
   Hero safeguards
   Forces the hero to be un-boxed and centred even if another stylesheet
   (extra.css, an overrides/ template, a theme rule) styles the header.
   ========================================================================== */

.md-content__inner:has(> .md-post--excerpt) > header.md-typeset {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  width: 100% !important;
  max-width: none !important;
  margin-left: 0 !important;
  margin-right: 0 !important;
  text-align: center !important;
  background: none !important;
  border: 0 !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  float: none !important;
}

.md-content__inner:has(> .md-post--excerpt) > header.md-typeset > * {
  margin-left: auto !important;
  margin-right: auto !important;
  text-align: center !important;
}

.md-content__inner:has(> .md-post--excerpt) > header.md-typeset::before,
.md-content__inner:has(> .md-post--excerpt) > header.md-typeset::after {
  display: none !important;
}

.blog-filter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  gap: 1rem;
  margin: 1.5rem 0 2rem;
}

/* ===== Blog filter bar ===== */
.md-content .blog-filter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  gap: 1rem;
  width: 100%;
  margin: 3.5rem 0 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
}

.md-content .blog-filter__tabs {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  justify-content: flex-start;
  gap: 0.125rem;
  overflow-x: auto;
  scrollbar-width: none;
}
.md-content .blog-filter__tabs::-webkit-scrollbar { display: none; }

.md-content .blog-filter__tab {
  appearance: none;
  border: 0;
  margin: 0;
  background: transparent;
  color: var(--md-default-fg-color--light);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 400;
  line-height: 1;
  padding: 0.45rem 0.7rem;
  border-radius: 6px;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.md-content .blog-filter__tab:hover {
  background: var(--md-default-fg-color--lightest);
  color: var(--md-default-fg-color);
}
.md-content .blog-filter__tab.is-active {
  background: var(--md-default-fg-color--lightest);
  color: var(--md-default-fg-color);
  font-weight: 500;
}

.md-content .blog-filter__search {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  width: 9rem;
  margin: 0;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 6px;
  color: var(--md-default-fg-color--light);
  background: transparent;
  transition: border-color 0.15s ease;
}
.md-content .blog-filter__search:focus-within {
  border-color: var(--md-default-fg-color--lighter);
  outline: none;
}
.md-content .blog-filter__search svg {
  width: 12px;
  height: 12px;
  flex: none;
}
.md-content .blog-filter__search input {
  flex: 1;
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
  outline: 0;
  box-shadow: none;
  background: transparent;
  color: var(--md-default-fg-color);
  font: inherit;
  font-size: 0.72rem;
}
.md-content .blog-filter__search input::placeholder {
  color: var(--md-default-fg-color--light);
  opacity: 0.8;
}

.md-content .blog-filter__empty {
  text-align: center;
  color: var(--md-default-fg-color--light);
  font-size: 0.8rem;
  padding: 2rem 0;
}

@media (max-width: 600px) {
  .md-content .blog-filter__search { width: 7rem; }
}
/* Blog page background */
body:has(.blog-filter) .md-main {
  background:
    radial-gradient(60rem 26rem at 50% -4rem, rgba(79, 154, 109, 0.16), transparent 70%),
    radial-gradient(28rem 18rem at 92% 14rem, rgba(79, 154, 109, 0.06), transparent 70%),
    var(--md-default-bg-color);
}

/* dark mode: keep it subtler */
[data-md-color-scheme="slate"] body:has(.blog-filter) .md-main {
  background:
    radial-gradient(60rem 26rem at 50% -4rem, rgba(79, 154, 109, 0.14), transparent 70%),
    var(--md-default-bg-color);
}
body:has(.blog-filter) .md-main {
  position: relative;
}
body:has(.blog-filter) .md-main::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 32rem;
  background-image: radial-gradient(var(--md-default-fg-color--lighter) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: 0.5;
  /* fades the dots out toward the edges and bottom */
  -webkit-mask-image: radial-gradient(ellipse 60% 70% at 50% 0%, #000 20%, transparent 75%);
  mask-image: radial-gradient(ellipse 60% 70% at 50% 0%, #000 20%, transparent 75%);
  pointer-events: none;
  z-index: 0;
}
body:has(.blog-filter) .md-content {
  position: relative;
  z-index: 1;
}