/* =================================================================
   REIzer /blog/ — editorial layout
   Loads AFTER styles.css + theme.css. Dark charcoal hero + cover art,
   a featured post, a card grid, and a reading column with an outline
   rail. Ink + charcoal + off-white; the brand green stays in the nav.
   Every var() carries a fallback so the pages degrade gracefully.
================================================================= */
:root{
  --blog-w: 1160px; --blog-pad: 28px; --post-w: 740px;
  --blog-ink: var(--ink,#11151C); --blog-ink-2: var(--ink-2,#333A45); --blog-ink-3: var(--ink-3,#5B6472); --blog-ink-4: var(--ink-4,#9AA1AD);
  --blog-line: var(--line,#E3E6EB); --blog-line-2: var(--line-2,#CCD2DB);
  --blog-card: var(--surface-solid,#FFFFFF); --blog-soft: var(--surface-2,#EEF0F3);
  --blog-dark: #333A45; --blog-dark-2: #3F4754; --blog-on-dark: #F4F6F3;
  --blog-band: #F3F4F6; --blog-band-2: #E9EBEF; --blog-panel: #F1F2F4;
  --blog-serif: 'Instrument Serif', Georgia, 'Times New Roman', serif;
  --blog-sans: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --blog-mono: 'Space Mono', ui-monospace, Menlo, monospace;
}
.blog-wrap{ max-width:var(--blog-w); margin:0 auto; padding:48px var(--blog-pad) 80px; }

/* ---- shared bits ---- */
.blog-kicker{ font-family:var(--blog-mono); font-size:.8rem; letter-spacing:.18em; text-transform:uppercase; }
.blog-cat{ display:inline-flex; align-items:center; gap:7px; font-family:var(--blog-sans); font-weight:600; font-size:.92rem; color:var(--blog-ink-2); }
.cat-ic{ flex:0 0 auto; display:inline-block; }
.px-art{ display:inline-block; vertical-align:-2px; }

/* ---- motion: cards reveal on scroll ---- */
@media (prefers-reduced-motion:no-preference){
  .reveal{ opacity:0; transform:translateY(22px); transition:opacity .65s cubic-bezier(.2,.8,.2,1), transform .65s cubic-bezier(.2,.8,.2,1); }
  .reveal.in{ opacity:1; transform:none; }
}
.blog-filter{ display:inline-flex; align-items:center; gap:7px; }
.post-crumbs .blog-cat{ text-transform:none; letter-spacing:0; font-size:.9rem; }
.blog-meta{ font-family:var(--blog-sans); font-size:.9rem; color:var(--blog-ink-4); white-space:nowrap; }
.blog-card-top{ display:flex; justify-content:space-between; align-items:baseline; gap:12px; flex-wrap:wrap; margin-bottom:14px; }
.blog-btn, .blog-ctas a, .post-cta-btn{
  display:inline-flex; align-items:center; gap:8px; padding:13px 24px; border-radius:999px; text-decoration:none; border:0;
  font-family:var(--blog-sans); font-weight:600; font-size:1.02rem; line-height:1; transition:transform .15s ease, background .15s ease, border-color .15s ease;
}
.blog-btn, .blog-ctas .primary, .post-cta-btn{ background:var(--blog-dark); color:#fff; }
.blog-btn:hover, .blog-ctas .primary:hover{ background:var(--blog-dark-2); }
.blog-ctas .ghost{ border:1.5px solid var(--blog-line-2); color:var(--blog-ink); background:transparent; }
.blog-ctas .ghost:hover{ border-color:var(--blog-ink-3); }
.cover-art{ display:block; width:100%; height:100%; }

/* ---- hero (full-bleed dark band) ---- */
.blog-hero{ background:linear-gradient(180deg,var(--blog-band) 0%,var(--blog-band-2) 100%); color:var(--blog-ink); padding:64px 0 64px; border-bottom:1px solid var(--blog-line); }
.blog-hero-inner{ max-width:var(--blog-w); margin:0 auto; padding:0 var(--blog-pad); }
.blog-hero-text{ max-width:760px; margin:0 0 40px; }
.blog-hero .blog-kicker{ color:var(--blog-ink-3); margin-bottom:18px; }
.blog-hero h1{
  font-family:var(--blog-serif); font-weight:400; letter-spacing:-0.015em; color:var(--blog-ink);
  font-size:clamp(2.8rem,5.4vw,4.4rem); line-height:1.02; margin:0 0 18px; max-width:16ch;
}
.blog-lede{ font-family:var(--blog-sans); font-size:1.22rem; line-height:1.55; color:var(--blog-ink-2); margin:0; max-width:62ch; }
.blog-section{ margin:0 0 64px; }
.blog-section-head{ display:flex; align-items:baseline; gap:18px; flex-wrap:wrap; margin:0 0 24px; }
.blog-section-head h2{ font-family:var(--blog-serif); font-weight:400; font-size:2.1rem; line-height:1.1; color:var(--blog-ink); margin:0; }
.blog-section-head p{ font-family:var(--blog-sans); font-size:1.05rem; color:var(--blog-ink-3); margin:0; }

/* ---- featured (latest post) ---- */
.blog-featured{ margin:0; }
.blog-featured-link{
  display:grid; grid-template-columns:minmax(0,1.15fr) minmax(0,1fr); gap:0; overflow:hidden;
  border-radius:22px; border:1px solid rgba(17,21,28,.10); background:var(--blog-card); text-decoration:none; color:inherit;
  box-shadow:0 1px 0 rgba(255,255,255,.9) inset, 0 2px 4px rgba(17,21,28,.06), 0 10px 20px -6px rgba(17,21,28,.12), 0 40px 70px -24px rgba(17,21,28,.36);
  transition:transform .2s ease, box-shadow .2s ease;
}
.blog-featured-link:hover{ transform:translateY(-5px); box-shadow:0 1px 0 rgba(255,255,255,.9) inset, 0 3px 6px rgba(17,21,28,.06), 0 16px 28px -8px rgba(17,21,28,.16), 0 56px 90px -28px rgba(17,21,28,.45); }
.blog-featured-cover{ position:relative; overflow:hidden; min-height:380px; border-top:6px solid var(--cat,var(--blog-ink)); border-right:1px solid var(--blog-line); }
.blog-featured-cover .cover-art{ position:absolute; inset:0; }
.blog-featured-body{ padding:44px 48px; display:flex; flex-direction:column; justify-content:center; }
.blog-featured-title{ font-family:var(--blog-serif); font-weight:400; font-size:clamp(1.9rem,2.8vw,2.5rem); line-height:1.12; letter-spacing:-0.01em; color:var(--blog-ink); margin:0 0 16px; }
.blog-featured-excerpt{ font-family:var(--blog-sans); font-size:1.12rem; line-height:1.6; color:var(--blog-ink-2); margin:0 0 28px; }
.blog-featured .blog-btn{ align-self:flex-start; }

/* ---- filters (tab bar) ---- */
.blog-filters{ display:flex; gap:4px; overflow-x:auto; border-bottom:1px solid var(--blog-line); margin:0 0 30px; scrollbar-width:none; -webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 40px),transparent); mask-image:linear-gradient(90deg,#000 calc(100% - 40px),transparent); }
.blog-filters::-webkit-scrollbar{ display:none; }
.blog-filter{
  appearance:none; cursor:pointer; background:none; border:0; border-bottom:2.5px solid transparent; margin-bottom:-1px;
  padding:12px 16px; font-family:var(--blog-sans); font-weight:600; font-size:1.02rem; color:var(--blog-ink-3); white-space:nowrap;
  transition:color .15s ease, border-color .15s ease;
}
.blog-filter:hover{ color:var(--blog-ink); }
.blog-filter.on{ color:var(--blog-ink); border-bottom-color:var(--blog-ink); }

/* ---- cards ---- */
.blog-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(320px,1fr)); gap:26px; }
.blog-card{ margin:0; }
.blog-card-link{
  display:flex; flex-direction:column; height:100%; overflow:hidden;
  border-radius:18px; border:1px solid rgba(17,21,28,.09); background:var(--blog-card); text-decoration:none; color:inherit;
  box-shadow:0 1px 0 rgba(255,255,255,.9) inset, 0 1px 2px rgba(17,21,28,.06), 0 6px 12px -4px rgba(17,21,28,.10), 0 22px 40px -14px rgba(17,21,28,.28);
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.blog-card-link:hover{ transform:translateY(-6px); box-shadow:0 1px 0 rgba(255,255,255,.9) inset, 0 2px 4px rgba(17,21,28,.06), 0 12px 20px -6px rgba(17,21,28,.14), 0 40px 60px -18px rgba(17,21,28,.38); border-color:rgba(17,21,28,.16); }
.blog-card-body{ background:linear-gradient(180deg,#fff 0%,#FBFBFC 100%); }
.blog-card-cover{ aspect-ratio:16/9; overflow:hidden; border-top:6px solid var(--cat,var(--blog-ink)); border-bottom:1px solid var(--blog-line); }
.blog-card-body{ display:flex; flex-direction:column; flex:1; padding:24px 26px 26px; }
.blog-card-title{ font-family:var(--blog-sans); font-weight:600; font-size:1.42rem; line-height:1.28; letter-spacing:-0.012em; color:var(--blog-ink); margin:0 0 12px; }
.blog-card-excerpt{ font-family:var(--blog-sans); font-size:1.04rem; line-height:1.6; color:var(--blog-ink-2); margin:0 0 22px; flex:1; }
.blog-card-more{ font-family:var(--blog-sans); font-weight:600; font-size:.98rem; color:var(--blog-ink); }
.blog-card-link:hover .blog-card-more{ text-decoration:underline; text-underline-offset:4px; }
.blog-empty{ text-align:center; color:var(--blog-ink-3); padding:40px 0; font-size:1.05rem; }

/* ---- closing band (index) ---- */
.blog-band{
  display:flex; align-items:center; justify-content:space-between; gap:32px; flex-wrap:wrap;
  background:var(--blog-band); border:1px solid var(--blog-line); color:var(--blog-ink); border-radius:22px; padding:44px 48px; margin:0;
}
.blog-band h2{ font-family:var(--blog-serif); font-weight:400; font-size:2rem; line-height:1.15; margin:0 0 10px; color:var(--blog-ink); }
.blog-band p{ font-family:var(--blog-sans); font-size:1.08rem; line-height:1.55; color:var(--blog-ink-2); margin:0; max-width:56ch; }
.blog-ctas{ display:flex; flex-wrap:wrap; gap:12px; }

/* ---- article ---- */
.blog-post{ padding-top:44px; }
.post-head{ max-width:var(--post-w); margin:0 auto 36px; text-align:left; }
.post-crumbs{ display:flex; gap:10px; align-items:center; font-family:var(--blog-mono); font-size:.8rem; letter-spacing:.08em; text-transform:uppercase; color:var(--blog-ink-3); margin:0 0 22px; }
.post-crumbs a{ color:var(--blog-ink); text-decoration:none; }
.post-crumbs a:hover{ text-decoration:underline; text-underline-offset:4px; }
.post-head h1{
  font-family:var(--blog-serif); font-weight:400; letter-spacing:-0.015em; color:var(--blog-ink);
  font-size:clamp(2.5rem,4.8vw,3.7rem); line-height:1.06; margin:0 0 20px;
}
.post-lede{ font-family:var(--blog-sans); font-size:1.32rem; line-height:1.55; color:var(--blog-ink-2); margin:0 0 24px; }
.post-meta{ display:flex; flex-wrap:wrap; gap:10px; align-items:center; font-family:var(--blog-sans); font-size:.98rem; color:var(--blog-ink-3); }
.post-author{ display:inline-flex; align-items:center; gap:10px; color:var(--blog-ink); font-weight:600; }
/* byline: the REIzer brand mark (green roof chevron + wordmark), never a generic avatar */
/* exact header colours: REIzer black for "REI", REIzer green (--brand-fill) for the chevron + "zer" */
.post-brand{ display:inline-flex; align-items:center; gap:6px; font-family:var(--font-brand,'Space Grotesk',sans-serif); font-weight:700; font-size:1.08rem; letter-spacing:-0.01em; color:var(--brand-ink,#0C0F0A); }
.post-brand em{ font-style:normal; color:var(--brand-fill,#7EE86A); }
.post-brand-roof{ width:26px; height:26px; display:block; }
.post-brand-roof circle{ fill:var(--brand-ink,#0C0F0A); }
.post-brand-roof path{ fill:none; stroke:var(--brand-fill,#7EE86A); stroke-width:2.4; stroke-linecap:round; stroke-linejoin:round; }
.post-cover{ max-width:var(--blog-w); margin:0 auto 52px; aspect-ratio:2/1; border-radius:22px; overflow:hidden; border:1px solid var(--blog-line); border-top:8px solid var(--cat,var(--blog-ink)); box-shadow:0 1px 0 rgba(255,255,255,.9) inset, 0 2px 4px rgba(17,21,28,.05), 0 30px 70px -40px rgba(17,21,28,.35); }

.post-layout{ display:grid; grid-template-columns:200px minmax(0,var(--post-w)); gap:64px; justify-content:center; align-items:start; }
.post-toc{ position:sticky; top:96px; }
.post-toc-h{ font-family:var(--blog-mono); font-size:.74rem; letter-spacing:.16em; text-transform:uppercase; color:var(--blog-ink-4); margin:6px 0 14px; }
.post-toc ol{ list-style:none; margin:0; padding:0; border-left:1px solid var(--blog-line); }
.post-toc li{ margin:0; }
.post-toc a{
  display:block; padding:7px 0 7px 16px; margin-left:-1px; border-left:2px solid transparent;
  font-family:var(--blog-sans); font-size:.95rem; line-height:1.4; color:var(--blog-ink-3); text-decoration:none; transition:color .15s ease, border-color .15s ease;
}
.post-toc a:hover{ color:var(--blog-ink); }
.post-toc a.on{ color:var(--blog-ink); border-left-color:var(--blog-ink); font-weight:600; }

.post-body{ font-family:var(--blog-sans); font-size:1.16rem; line-height:1.78; color:var(--blog-ink); }
.post-body p{ margin:0 0 1.35em; }
.post-body > p:first-child::first-letter{ font-family:var(--blog-serif); font-size:3.9em; line-height:.8; float:left; padding:.08em .12em 0 0; color:var(--blog-ink); }
.post-body h2{ font-family:var(--blog-serif); font-weight:400; font-size:2.1rem; line-height:1.15; letter-spacing:-0.012em; color:var(--blog-ink); margin:2.2em 0 .6em; scroll-margin-top:96px; }
.post-body h3{ font-family:var(--blog-sans); font-weight:600; font-size:1.36rem; line-height:1.3; color:var(--blog-ink); margin:1.8em 0 .55em; }
.post-body h4{ font-family:var(--blog-mono); font-size:.8rem; letter-spacing:.12em; text-transform:uppercase; color:var(--blog-ink-3); margin:1.8em 0 .6em; }
.post-body a{ color:var(--blog-ink); text-decoration:underline; text-decoration-thickness:1.5px; text-underline-offset:4px; text-decoration-color:var(--blog-line-2); transition:text-decoration-color .15s ease; }
.post-body a:hover{ text-decoration-color:var(--blog-ink); }
.post-body ul, .post-body ol{ margin:0 0 1.35em; padding-left:1.4em; }
.post-body li{ margin:0 0 .55em; padding-left:.2em; }
.post-body li::marker{ color:var(--blog-ink-3); }
.post-body strong{ font-weight:700; color:var(--blog-ink); }
.post-body em{ font-style:italic; }
.post-body code{ font-family:var(--blog-mono); font-size:.88em; background:var(--blog-soft); padding:2px 7px; border-radius:6px; }
.post-body blockquote{
  margin:1.8em 0; padding:8px 0 8px 28px; border-left:3px solid var(--blog-ink);
  font-family:var(--blog-serif); font-size:1.45rem; line-height:1.4; color:var(--blog-ink);
}
.post-body blockquote p:last-child{ margin-bottom:0; }
.post-body hr{ border:0; border-top:1px solid var(--blog-line); margin:2.6em 0; }
.post-code{
  font-family:var(--blog-mono); font-size:.98rem; line-height:1.7; padding:22px 26px; border-radius:16px;
  margin:1.5em 0; overflow-x:auto; white-space:pre; background:var(--blog-panel); color:var(--blog-ink);
  border:1px solid var(--blog-line);
}
.post-code code{ background:none; padding:0; font-size:inherit; color:inherit; }
.post-table-wrap{ overflow-x:auto; margin:1.6em 0; border:1px solid var(--blog-line); border-radius:16px; background:var(--blog-card); }
.post-table{ width:100%; border-collapse:collapse; font-size:1.02rem; }
.post-table th, .post-table td{ padding:14px 18px; text-align:left; vertical-align:top; border-bottom:1px solid var(--blog-line); }
.post-table thead th{ font-family:var(--blog-mono); font-size:.76rem; letter-spacing:.1em; text-transform:uppercase; color:var(--blog-ink-3); background:var(--blog-soft); }
.post-table tbody tr:last-child td{ border-bottom:0; }
.post-table tbody tr:nth-child(even) td{ background:rgba(17,21,28,.02); }
.post-table td{ color:var(--blog-ink); }
.post-body img{ max-width:100%; height:auto; border-radius:16px; border:1px solid var(--blog-line); }

.post-cta{ margin:52px 0 0; padding:36px 40px; border-radius:20px; background:var(--blog-band); color:var(--blog-ink); }
.post-cta b{ display:block; font-family:var(--blog-serif); font-weight:400; font-size:1.8rem; line-height:1.15; color:var(--blog-ink); margin-bottom:10px; }
.post-cta p{ margin:0 0 22px; color:var(--blog-ink-2); font-family:var(--blog-sans); font-size:1.08rem; line-height:1.6; }
.post-cta .post-cta-btn:hover{ background:var(--blog-dark-2); }
/* "REIzer AI" everywhere: REI in the surrounding text colour (white on the charcoal button, ink on the page), "zer AI" in REIzer green */
.brand-word{ white-space:nowrap; }
.brand-word em{ font-style:normal; color:var(--brand-fill,#7EE86A); }
.post-cta-btn .brand-word{ color:#fff; }
.post-cta .post-cta-btn{ gap:0; }  /* the label is prose ("Ask REIzer AI"); flex gap would double the space */

.post-share{ display:flex; flex-wrap:wrap; gap:10px; align-items:center; margin:36px 0 0; padding-top:28px; border-top:1px solid var(--blog-line); }
.post-share-h{ font-family:var(--blog-mono); font-size:.76rem; letter-spacing:.14em; text-transform:uppercase; color:var(--blog-ink-3); margin-right:8px; }
.post-share-btn{
  appearance:none; cursor:pointer; display:inline-flex; align-items:center; padding:10px 18px; border-radius:999px; text-decoration:none;
  font-family:var(--blog-sans); font-weight:600; font-size:.98rem; color:var(--blog-ink);
  background:var(--blog-card); border:1.5px solid var(--blog-line-2); transition:border-color .15s ease, background .15s ease;
}
.post-share-btn:hover{ border-color:var(--blog-ink); }
.post-share-btn.copied{ background:var(--blog-dark); border-color:var(--blog-dark); color:#fff; }

.post-more{ max-width:var(--blog-w); margin:80px auto 0; padding-top:48px; border-top:1px solid var(--blog-line); }
.post-more h2{ font-family:var(--blog-serif); font-weight:400; font-size:2rem; color:var(--blog-ink); margin:0 0 26px; }

/* ---- dark / midnight ---- */
html[data-theme="dark"] .blog-featured-link, html[data-theme="midnight"] .blog-featured-link,
html[data-theme="dark"] .blog-card-link, html[data-theme="midnight"] .blog-card-link,
html[data-theme="dark"] .post-table-wrap, html[data-theme="midnight"] .post-table-wrap,
html[data-theme="dark"] .post-share-btn, html[data-theme="midnight"] .post-share-btn{ background:rgba(255,255,255,.04); }
html[data-theme="dark"] .post-table thead th, html[data-theme="midnight"] .post-table thead th,
html[data-theme="dark"] .post-body code, html[data-theme="midnight"] .post-body code{ background:rgba(255,255,255,.07); }
html[data-theme="dark"] .post-table tbody tr:nth-child(even) td, html[data-theme="midnight"] .post-table tbody tr:nth-child(even) td{ background:rgba(255,255,255,.025); }
html[data-theme="dark"] .blog-hero, html[data-theme="midnight"] .blog-hero,
html[data-theme="dark"] .blog-band, html[data-theme="midnight"] .blog-band,
html[data-theme="dark"] .post-code, html[data-theme="midnight"] .post-code{ background:rgba(255,255,255,.04); border-color:rgba(255,255,255,.08); }
html[data-theme="dark"] .post-cta, html[data-theme="midnight"] .post-cta,
html[data-theme="dark"] .post-cta b, html[data-theme="midnight"] .post-cta b,
html[data-theme="dark"] .post-cta p, html[data-theme="midnight"] .post-cta p{ color:#11151C; }
html[data-theme="dark"] .blog-btn, html[data-theme="midnight"] .blog-btn,
html[data-theme="dark"] .post-share-btn.copied, html[data-theme="midnight"] .post-share-btn.copied{ background:#F4F6F3; color:#11151C; }

/* ---- responsive ---- */
@media (max-width:1000px){
  .post-layout{ grid-template-columns:minmax(0,var(--post-w)); gap:0; }
  .post-toc{ display:none; }
}
@media (max-width:860px){
  .blog-featured-link{ grid-template-columns:1fr; }
  .blog-featured-cover{ aspect-ratio:16/9; min-height:0; }
  .blog-featured-body{ padding:30px 28px 32px; }
  .blog-band{ padding:34px 30px; }
}
@media (max-width:640px){
  :root{ --blog-pad:18px; }
  .blog-wrap{ padding:32px var(--blog-pad) 60px; }
  .blog-hero{ padding:44px 0 40px; }
  .blog-hero-text{ margin-bottom:28px; }
  .blog-section{ margin-bottom:48px; }
  .blog-section-head h2{ font-size:1.8rem; }
  .blog-lede{ font-size:1.12rem; }
  .blog-grid{ grid-template-columns:1fr; gap:20px; }
  .blog-card-body{ padding:20px 22px 22px; }
  .post-lede{ font-size:1.16rem; }
  .post-body{ font-size:1.08rem; }
  .post-body h2{ font-size:1.75rem; }
  .post-cover{ aspect-ratio:16/9; border-radius:16px; margin-bottom:36px; }
  .post-cta{ padding:28px 24px; }
  .post-code{ padding:16px 18px; font-size:.9rem; }
  .post-table th, .post-table td{ padding:11px 13px; }
}