/* =========================================================================
   blog.css — Azimuth public blog (index + articles). Reuses tokens.css
   ([data-az="light"/"dark"]). Server-rendered HTML, no build step.
   ========================================================================= */
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--canvas);color:var(--ink);
  font-family:"Instrument Sans",system-ui,-apple-system,sans-serif;
  line-height:1.6;-webkit-font-smoothing:antialiased;
}
a{color:inherit;}
.wrap{max-width:760px;margin:0 auto;padding:0 24px;}
.wrap-wide{max-width:1280px;margin:0 auto;padding:0 48px;}

/* ── Ticker tape (matches the landing strip) ─────────────────────────── */
.ticker{border-bottom:1px solid var(--line);background:color-mix(in oklab,var(--surface) 55%,transparent);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);overflow:hidden;white-space:nowrap;line-height:1.2;}
.ticker .track{display:inline-flex;animation:tape-scroll 42s linear infinite;}
.ticker:hover .track{animation-play-state:paused;}
.ticker .cell{display:inline-flex;align-items:center;gap:7px;padding:8px 16px;}
.ticker .sym{font-size:12px;font-weight:700;color:var(--ink);}
.ticker .px{font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums;}
.ticker .chg{font-size:11px;font-weight:600;}
.ticker .chg.up{color:var(--up);}.ticker .chg.down{color:var(--down);}
@keyframes tape-scroll{from{transform:translateX(0);}to{transform:translateX(-50%);}}

/* ── Header (matches landing.html nav) ───────────────────────────────── */
.nav{position:sticky;top:0;z-index:40;border-bottom:1px solid var(--line);
  background:color-mix(in oklab,var(--canvas) 62%,transparent);
  -webkit-backdrop-filter:blur(20px) saturate(1.5);backdrop-filter:blur(20px) saturate(1.5);
  box-shadow:0 12px 30px -18px rgba(20,20,20,.30);}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:16px;height:66px;}
.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);}
.brand b{font-size:24px;font-weight:700;letter-spacing:-.04em;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{text-decoration:none;font-family:"IBM Plex Mono",monospace;font-size:12.5px;color:var(--ink-2);}
.nav-links a:hover{color:var(--ink);}
.nav-right{display:flex;align-items:center;gap:14px;}
.themed{display:grid;place-items:center;width:38px;height:38px;border:1px solid var(--line);
  background:var(--surface);border-radius:10px;color:var(--ink-2);cursor:pointer;flex:none;}
.themed:hover{color:var(--ink);border-color:var(--ink-4);}
/* button system — identical to landing.html */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;text-decoration:none;font-weight:600;font-size:15px;line-height:1;padding:13px 22px;border-radius:11px;cursor:pointer;border:1px solid transparent;transition:transform .12s,filter .15s,background .15s,border-color .15s,color .15s;white-space:nowrap;}
.btn:active{transform:translateY(1px);}
.btn-solid{background:var(--brand);color:var(--on-brand);}
.btn-solid:hover{filter:brightness(1.08);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--ink-3);background:var(--surface-2);}
.btn-sm{padding:9px 16px;font-size:13.5px;}
@media(max-width:640px){.nav-links{display:none;}.wrap-wide{padding:0 24px;}}

/* ── Blog index ──────────────────────────────────────────────────────── */
.blog-head{padding:56px 0 28px;}
.blog-head .eyebrow{font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:0.14em;
  text-transform:uppercase;color:var(--ink-3);margin-bottom:14px;}
.blog-head h1{font-size:clamp(32px,5vw,44px);line-height:1.08;letter-spacing:-0.8px;margin:0 0 14px;}
.blog-head p{font-size:17px;color:var(--ink-2);max-width:580px;margin:0;}
.post-list{display:grid;gap:18px;padding:8px 0 64px;}
.post-card{display:block;text-decoration:none;border:1px solid var(--line);border-radius:16px;
  padding:24px 26px;background:color-mix(in oklab,var(--surface) 60%,transparent);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:var(--shadow-sm);transition:transform .14s,box-shadow .14s,border-color .14s;}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--ink-4);}
.post-card.soon{opacity:.62;cursor:default;}
.post-card.soon:hover{transform:none;box-shadow:var(--shadow-sm);border-color:var(--line);}
.post-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:11px;
  font-family:"IBM Plex Mono",monospace;font-size:11.5px;color:var(--ink-3);}
.post-tag{padding:3px 9px;border-radius:6px;background:var(--brand-soft);color:var(--ink);font-weight:600;letter-spacing:0.03em;}
.post-card h2{font-size:21px;line-height:1.25;letter-spacing:-0.3px;margin:0 0 8px;}
.post-card p{font-size:14.5px;color:var(--ink-2);margin:0;}

/* ── Article ─────────────────────────────────────────────────────────── */
.article-head{padding:52px 0 8px;}
.article-head .crumbs{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--ink-3);margin-bottom:20px;}
.article-head .crumbs a{text-decoration:none;color:var(--ink-3);}
.article-head .crumbs a:hover{color:var(--ink);}
.article-head h1{font-size:clamp(30px,5vw,42px);line-height:1.12;letter-spacing:-0.7px;margin:0 0 16px;}
.article-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--ink-3);padding-bottom:26px;border-bottom:1px solid var(--line);}
.article{padding:30px 0 20px;font-size:17px;}
.article h2{font-size:25px;line-height:1.2;letter-spacing:-0.4px;margin:40px 0 14px;}
.article h3{font-size:19px;line-height:1.3;margin:30px 0 10px;}
.article p{margin:0 0 18px;color:var(--ink-2);}
.article strong{color:var(--ink);font-weight:600;}
.article ul,.article ol{margin:0 0 18px;padding-left:24px;color:var(--ink-2);}
.article li{margin:0 0 9px;}
.article a{color:var(--ink);text-underline-offset:3px;}
/* buttons inside the article keep their own colors (beat the .article a rule) */
.article a.btn{text-decoration:none;}
.article a.btn-solid{color:var(--on-brand);}
.article a.btn-ghost{color:var(--ink);}
.article blockquote{margin:24px 0;padding:14px 20px;border-left:3px solid var(--brand);
  background:var(--surface-2);border-radius:0 10px 10px 0;color:var(--ink-2);font-size:16px;}
.article .key{border:1px solid var(--line);border-radius:14px;background:var(--surface-2);padding:20px 24px;margin:26px 0;}
.article .key h3{margin-top:0;}
.cta{border:1px solid var(--line);border-radius:18px;padding:30px 32px;margin:44px 0 16px;
  background:color-mix(in oklab,var(--surface) 60%,transparent);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  text-align:center;box-shadow:var(--shadow-md);}
.cta h3{font-size:22px;letter-spacing:-0.3px;margin:0 0 8px;}
.cta p{color:var(--ink-2);margin:0 0 18px;font-size:15px;}
.disclaimer{font-size:13px;color:var(--ink-3);border-top:1px solid var(--line);padding:24px 0;margin-top:36px;}

/* ── Support contact form (#47) ──────────────────────────────────────── */
.sform{margin:18px 0 8px;display:flex;flex-direction:column;gap:12px;}
.sform .sf-row{display:flex;gap:12px;}
.sform input,.sform textarea{width:100%;font:inherit;font-size:15px;color:var(--ink);
  background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:11px 13px;outline:none;
  transition:border-color .14s,box-shadow .14s;}
.sform input:focus,.sform textarea:focus{border-color:var(--ink-3);box-shadow:0 0 0 3px var(--brand-soft);}
.sform textarea{resize:vertical;min-height:120px;line-height:1.5;}
.sform .sf-hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0;}
.sform .sf-foot{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.sform .sf-status{font-size:13.5px;color:var(--ink-3);}
.sform .sf-status.ok{color:var(--up);}
.sform .sf-status.err{color:var(--down);}
@media(max-width:560px){.sform .sf-row{flex-direction:column;}}

/* ── Footer ──────────────────────────────────────────────────────────── */
.footer{border-top:1px solid var(--line);margin-top:40px;
  background:color-mix(in oklab,var(--surface) 55%,transparent);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);}
.footer-in{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:30px 0;flex-wrap:wrap;}
.footer .note{font-family:"IBM Plex Mono",monospace;font-size:11.5px;color:var(--ink-3);}
.foot-links{display:flex;gap:20px;}
.foot-links a{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--ink-3);text-decoration:none;}
.foot-links a:hover{color:var(--ink);}
@media(max-width:640px){.footer-in{justify-content:center;text-align:center;}}

/* ── #77 Liquid Glass — animated glow blobs (dark mode only, matches landing) ── */
.gbg{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none;}
.gbg b{position:absolute;display:none;border-radius:50%;filter:blur(70px);will-change:transform;}
:root[data-az="dark"] .gbg b{display:block;mix-blend-mode:screen;}
:root[data-az="dark"] .gb1{width:55vw;height:55vw;left:-8vw;top:-16vw;background:radial-gradient(circle,oklch(0.55 0 0/.28),transparent 62%);animation:gd1 26s ease-in-out infinite;}
:root[data-az="dark"] .gb2{width:50vw;height:50vw;right:-10vw;top:12vh;background:radial-gradient(circle,oklch(0.50 0 0/.25),transparent 62%);animation:gd2 32s ease-in-out infinite;}
:root[data-az="dark"] .gb3{width:46vw;height:46vw;left:26vw;bottom:-18vw;background:radial-gradient(circle,oklch(0.48 0 0/.22),transparent 62%);animation:gd3 38s ease-in-out infinite;}
@keyframes gd1{50%{transform:translate(9vw,8vh) scale(1.15);}}
@keyframes gd2{50%{transform:translate(-8vw,6vh) scale(.88);}}
@keyframes gd3{50%{transform:translate(6vw,-9vh) scale(1.14);}}
@media (prefers-reduced-motion:reduce){.gbg b{animation:none;}}