/* ───────── Thinky blog ─────────
   Consumes tokens from variables.css.
   Scoped under .blog-index and .blog-post-article so it
   never bleeds into manifesto/tutorial pages.
   Animations are gated by the global prefers-reduced-motion
   override in layout.css.
   ───────────────────────────────── */

/* Local helpers (landing.css isn't loaded on blog pages,
   so redefine the bits we use). */
.blog-index .eyebrow,
.blog-post-article .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.4rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--neon-cyan);
  background: rgba(0, 229, 255, 0.06);
  border: 1px solid rgba(0, 229, 255, 0.22);
  border-radius: 999px;
  backdrop-filter: blur(6px);
}
.blog-index .eyebrow::before,
.blog-post-article .eyebrow::before {
  content: "✦";
  color: var(--neon-magenta);
  text-shadow: 0 0 10px rgba(255, 45, 149, 0.7);
}

.blog-index .grad-text,
.blog-post-article .grad-text {
  background: var(--gradient-accent);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: blog-grad-shift 12s ease-in-out infinite;
}
@keyframes blog-grad-shift {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

/* Lift the <main> width constraint so the cover and hero can be wider
   than the read column. Both pages opt in via wrapper class. */
main:has(> .blog-index),
main:has(> .blog-post-article) {
  max-width: none;
  padding: 0;
}

/* ═══════════════════ INDEX ═══════════════════ */

.blog-index {
  width: 100%;
  overflow-x: clip;
}

/* ── Hero ── */
.blog-hero {
  position: relative;
  padding: clamp(56px, 10vh, 120px) var(--shell-pad-x) clamp(36px, 6vh, 72px);
}
.blog-hero-inner {
  position: relative;
  max-width: var(--content-max);
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.25rem;
  z-index: 1;
}

/* Slow-rotating conic aura behind the hero copy */
@property --blog-aura-angle {
  syntax: "<angle>";
  inherits: false;
  initial-value: 0deg;
}
.blog-hero-aura {
  position: absolute;
  top: 50%; left: 50%;
  width: min(820px, 90vw);
  aspect-ratio: 1 / 1;
  transform: translate(-50%, -50%);
  background: conic-gradient(
    from var(--blog-aura-angle),
    rgba(0, 229, 255, 0.18),
    rgba(122, 60, 255, 0.16),
    rgba(255, 45, 149, 0.18),
    rgba(0, 229, 255, 0.18)
  );
  filter: blur(80px);
  opacity: 0.7;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  animation: blog-aura-rotate 20s linear infinite;
}
@keyframes blog-aura-rotate {
  to { --blog-aura-angle: 360deg; }
}

.blog-hero-title {
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
  font-weight: 700;
  color: var(--text-1);
  max-width: 16ch;
}
.blog-hero-title .grad-text {
  display: inline-block;
  line-height: 1.12;
  padding-bottom: 0.08em;
  margin-bottom: -0.08em;
}

.blog-hero-sub {
  margin: 0;
  max-width: 56ch;
  font-size: clamp(1rem, 1.25vw, 1.15rem);
  line-height: 1.65;
  color: var(--text-2);
}

/* Thin neon underline */
.blog-hero::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: min(var(--content-max), calc(100% - 2 * var(--shell-pad-x)));
  transform: translateX(-50%);
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 229, 255, 0.35),
    rgba(255, 45, 149, 0.35),
    transparent
  );
  pointer-events: none;
}

/* ── Grid ── */
.blog-grid-wrap {
  padding: clamp(40px, 6vh, 80px) var(--shell-pad-x) clamp(72px, 10vh, 128px);
}
.blog-grid {
  max-width: var(--content-max);
  margin-inline: auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.blog-empty {
  grid-column: 1 / -1;
  padding: 64px 24px;
  text-align: center;
  color: var(--text-3);
  font-family: var(--font-mono);
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  background: var(--panel);
}

/* ── Card ── */
.blog-card {
  position: relative;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  background: var(--gradient-panel), var(--bg-soft);
  border: 1px solid var(--border);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  isolation: isolate;
  transition:
    transform 320ms cubic-bezier(.4, 0, .2, 1),
    border-color var(--transition),
    box-shadow var(--transition);

  /* fade/slide-in (toggled by IntersectionObserver) */
  opacity: 0;
  transform: translateY(14px);
}
.blog-card.in-view {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 600ms cubic-bezier(.2, .7, .2, 1),
    transform 600ms cubic-bezier(.2, .7, .2, 1),
    border-color var(--transition),
    box-shadow var(--transition);
}

/* Animated gradient border that rotates on hover */
@property --blog-card-angle {
  syntax: "<angle>";
  inherits: false;
  initial-value: 0deg;
}
.blog-card-border {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: conic-gradient(
    from var(--blog-card-angle),
    var(--neon-cyan),
    var(--neon-violet),
    var(--neon-magenta),
    var(--neon-cyan)
  );
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
  z-index: 2;
}
.blog-card:hover {
  transform: translateY(-6px);
  border-color: transparent;
  box-shadow:
    0 18px 44px rgba(0, 0, 0, 0.55),
    var(--shadow-neon-cyan);
}
.blog-card:hover .blog-card-border {
  opacity: 1;
  animation: blog-card-orbit 6s linear infinite;
}
@keyframes blog-card-orbit {
  to { --blog-card-angle: 360deg; }
}

/* Aura behind the card on hover */
.blog-card::after {
  content: "";
  position: absolute;
  top: -40%;
  right: -30%;
  width: 80%;
  height: 160%;
  background: radial-gradient(ellipse at center, rgba(0, 229, 255, 0.14), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-slow);
  pointer-events: none;
  z-index: 0;
}
.blog-card:nth-child(3n+2)::after {
  background: radial-gradient(ellipse at center, rgba(122, 60, 255, 0.16), transparent 60%);
}
.blog-card:nth-child(3n+3)::after {
  background: radial-gradient(ellipse at center, rgba(255, 45, 149, 0.14), transparent 60%);
}
.blog-card:hover::after { opacity: 1; }

/* Cover */
.blog-card-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-soft);
}
.blog-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1.02);
  transition: transform 600ms cubic-bezier(.4, 0, .2, 1);
}
.blog-card:hover .blog-card-cover img { transform: scale(1.08); }

.blog-card-scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 35%, rgba(5, 7, 15, 0.55) 100%);
  pointer-events: none;
}

/* Body */
.blog-card-body {
  position: relative;
  padding: 22px 24px 26px;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  z-index: 1;
}
.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
}
.blog-card-title {
  margin: 0;
  font-size: 1.32rem;
  line-height: 1.25;
  letter-spacing: -0.02em;
  font-weight: 600;
  color: var(--text-1);
}
.blog-card-excerpt {
  margin: 0;
  font-size: 0.97rem;
  line-height: 1.55;
  color: var(--text-2);
}
.blog-card-read {
  margin-top: 0.4rem;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--neon-cyan);
}
.blog-card-read svg {
  transition: transform var(--transition);
}
.blog-card:hover .blog-card-read svg { transform: translateX(4px); }

/* ═══════════════════ POST PAGE ═══════════════════ */

.blog-post-article {
  width: 100%;
  overflow-x: clip;
}

.post-header {
  position: relative;
}

/* Full-bleed cover */
.post-cover {
  position: relative;
  width: 100%;
  height: clamp(280px, 50vh, 520px);
  overflow: hidden;
}
.post-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1.04);
  /* Slow ken-burns drift */
  animation: post-cover-drift 18s ease-in-out infinite alternate;
}
@keyframes post-cover-drift {
  from { transform: scale(1.04) translate(0, 0); }
  to   { transform: scale(1.08) translate(-1%, 1%); }
}
.post-cover-scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5, 7, 15, 0.15) 0%, rgba(5, 7, 15, 0.6) 60%, var(--bg) 100%),
    radial-gradient(ellipse at 20% 10%, rgba(0, 229, 255, 0.16), transparent 55%),
    radial-gradient(ellipse at 80% 90%, rgba(255, 45, 149, 0.18), transparent 55%);
  pointer-events: none;
}

/* Header text sitting in the read column */
.post-header-inner {
  max-width: 760px;
  margin: clamp(-100px, -8vh, -60px) auto 0;
  padding: 0 var(--shell-pad-x);
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

/* When there's no cover, give the header normal top padding */
.post-header:not(:has(.post-cover)) .post-header-inner {
  margin-top: clamp(48px, 8vh, 88px);
}

.back-link {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-2);
  transition: color var(--transition), transform var(--transition);
  text-decoration: none;
}
.back-link:hover {
  color: var(--neon-cyan);
  transform: translateX(-3px);
}

.post-title {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
  font-weight: 700;
  color: var(--text-1);
  max-width: 22ch;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
}
.post-meta .dot { color: var(--border-strong); }

/* ── Reading column ── */
.post-body.markdown-body {
  max-width: 720px;
  margin: clamp(40px, 6vh, 72px) auto clamp(64px, 9vh, 112px);
  padding: 0 var(--shell-pad-x);
  font-size: 1.075rem;
  line-height: 1.78;
  color: var(--text-1);
}

/* Markdown elements — scoped under .blog-post-article so we can't
   leak into .markdown-content (manifesto/tutorial). */
.blog-post-article .markdown-body p {
  margin: 0 0 1.15em;
  color: var(--text-2);
}
.blog-post-article .markdown-body strong { color: var(--text-1); }

.blog-post-article .markdown-body h1,
.blog-post-article .markdown-body h2,
.blog-post-article .markdown-body h3,
.blog-post-article .markdown-body h4 {
  position: relative;
  margin: 2.4em 0 0.6em;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-1);
  line-height: 1.25;
  padding-left: 0.95em;
}
.blog-post-article .markdown-body h1 { font-size: 1.9rem; }
.blog-post-article .markdown-body h2 { font-size: 1.55rem; }
.blog-post-article .markdown-body h3 { font-size: 1.25rem; }
.blog-post-article .markdown-body h4 { font-size: 1.05rem; }

.blog-post-article .markdown-body h1::before,
.blog-post-article .markdown-body h2::before,
.blog-post-article .markdown-body h3::before,
.blog-post-article .markdown-body h4::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 3px;
  border-radius: 2px;
  background: var(--neon-cyan);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.45);
}
.blog-post-article .markdown-body h2::before { background: var(--neon-magenta); box-shadow: 0 0 10px rgba(255, 45, 149, 0.45); }
.blog-post-article .markdown-body h3::before { background: var(--neon-violet);  box-shadow: 0 0 10px rgba(122, 60, 255, 0.45); }
.blog-post-article .markdown-body h4::before { background: var(--neon-lime);    box-shadow: 0 0 10px rgba(165, 255, 75, 0.45); }

.blog-post-article .markdown-body a {
  color: var(--neon-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.35);
  transition: color var(--transition), border-color var(--transition);
}
.blog-post-article .markdown-body a:hover {
  color: var(--neon-magenta);
  border-bottom-color: var(--neon-magenta);
}

.blog-post-article .markdown-body blockquote {
  position: relative;
  margin: 1.6em 0;
  padding: 0.6em 1em 0.6em 1.4em;
  border-left: 3px solid transparent;
  border-image: var(--gradient-accent) 1;
  background: var(--panel);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-2);
  font-style: italic;
}

.blog-post-article .markdown-body code {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 0.12em 0.42em;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.92em;
  color: var(--neon-cyan);
}

.blog-post-article .markdown-body pre {
  position: relative;
  margin: 1.6em 0;
  padding: 1.1rem 1.25rem;
  background: var(--panel-strong);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  overflow-x: auto;
  font-size: 0.92rem;
  line-height: 1.6;
}
.blog-post-article .markdown-body pre code {
  background: transparent;
  border: 0;
  padding: 0;
  color: var(--text-1);
}
/* Show language label from fenced-code class (e.g. <code class="clojure">) */
.blog-post-article .markdown-body pre > code[class]:not([class=""])::before {
  content: attr(class);
  position: absolute;
  top: 8px;
  right: 12px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
  pointer-events: none;
}

.blog-post-article .markdown-body img,
.blog-post-article .markdown-body video,
.blog-post-article .markdown-body iframe {
  display: block;
  width: 100%;
  height: auto;
  margin: 1.8em auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  background: var(--bg-soft);
  transition: transform var(--transition), box-shadow var(--transition);
}
.blog-post-article .markdown-body img:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.55);
}

.blog-post-article .markdown-body ul,
.blog-post-article .markdown-body ol {
  margin: 1em 0 1.4em 1.4em;
  color: var(--text-2);
}
.blog-post-article .markdown-body li { margin-bottom: 0.35em; }
.blog-post-article .markdown-body li::marker { color: var(--neon-cyan); }

.blog-post-article .markdown-body hr {
  height: 1px;
  border: 0;
  margin: 2.4em 0;
  background: linear-gradient(
    90deg,
    transparent,
    var(--border-strong),
    transparent
  );
}

.blog-post-article .markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8em 0;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  overflow: hidden;
}
.blog-post-article .markdown-body th,
.blog-post-article .markdown-body td {
  padding: 0.7rem 1rem;
  border: 1px solid var(--border);
  text-align: left;
}
.blog-post-article .markdown-body th {
  background: var(--panel-strong);
  color: var(--text-1);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.blog-post-article .markdown-body tbody tr:nth-child(even) {
  background: var(--panel);
}

/* ── Prev/next ── */
.post-nav {
  max-width: 920px;
  margin: 0 auto clamp(64px, 8vh, 112px);
  padding: 0 var(--shell-pad-x);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.post-nav-tile {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 18px 22px;
  border-radius: var(--radius-lg);
  background: var(--gradient-panel), var(--bg-soft);
  border: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  transition:
    transform var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
  overflow: hidden;
}
.post-nav-tile.older { grid-column: 2; text-align: right; align-items: flex-end; }
.post-nav-tile:only-child.newer { grid-column: 1; }
.post-nav-tile:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 229, 255, 0.35);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.45), var(--shadow-neon-cyan);
}
.post-nav-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-3);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.post-nav-tile.newer .post-nav-label::before { content: "←"; transition: transform var(--transition); }
.post-nav-tile.older .post-nav-label::after  { content: "→"; transition: transform var(--transition); }
.post-nav-tile.newer:hover .post-nav-label::before { transform: translateX(-3px); }
.post-nav-tile.older:hover .post-nav-label::after  { transform: translateX( 3px); }
.post-nav-title {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--text-1);
}

/* ═══════════════════ RESPONSIVE ═══════════════════ */
@media (max-width: 960px) {
  .blog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .blog-hero { padding-top: clamp(40px, 8vh, 80px); }
  .blog-hero-title { font-size: clamp(2rem, 9vw, 2.6rem); }
  .blog-grid { grid-template-columns: 1fr; gap: 18px; }
  .post-cover { height: clamp(220px, 38vh, 320px); }
  .post-header-inner { margin-top: -40px; }
  .post-title { font-size: clamp(1.8rem, 8vw, 2.4rem); }
  .post-body.markdown-body { font-size: 1rem; line-height: 1.7; }
  .post-nav { grid-template-columns: 1fr; }
  .post-nav-tile.older { grid-column: 1; text-align: left; align-items: flex-start; }
  .post-nav-tile.older .post-nav-label::after { content: "→"; }
}