/* ==========================================================================
   Whatcha Doing: blog. Same paper, ink and one highlighter as the landing
   page. The index reads like a log file; posts read like a long entry.
   ========================================================================== */
:root{
  --paper:#ffffff;--paper-2:#f3f3f1;--ink:#171717;--ink-2:#3d3d3d;--ink-3:#787774;
  --rule:#e3e3df;--mark:#ffe24b;
  --display:"Bricolage Grotesque",Georgia,serif;
  --body:"Instrument Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"SF Mono",Consolas,monospace;
  --r:10px;--ease:cubic-bezier(.32,.72,0,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--body);color:var(--ink);background:var(--paper);line-height:1.68;font-size:17px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2.5px solid var(--ink);outline-offset:3px;border-radius:3px}
p{text-wrap:pretty}

.mark{background-image:linear-gradient(101deg,transparent .4%,var(--mark) 1.2%,var(--mark) 98.4%,transparent 99.4%);
  background-size:100% 58%;background-position:0 82%;background-repeat:no-repeat;padding:0 .12em;
  -webkit-box-decoration-break:clone;box-decoration-break:clone}
.eyebrow{font-family:var(--mono);font-size:.73rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3)}

/* ---------- top bar ---------- */
.bar{border-bottom:1px solid var(--rule);background:rgba(255,255,255,.9);backdrop-filter:saturate(180%) blur(12px);position:sticky;top:0;z-index:10}
.bar__in{max-width:820px;margin:0 auto;padding:0 26px;height:62px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand img{display:block;height:28px;width:auto}
.bar__links{display:flex;gap:22px;align-items:center}
.bar__link{font-size:.9rem;color:var(--ink-3);font-weight:500}
.bar__link:hover,.bar__link[aria-current="page"]{color:var(--ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-family:var(--body);font-weight:600;font-size:.88rem;padding:9px 17px;border-radius:var(--r);
  border:1.5px solid transparent;cursor:pointer}
.btn--fill{background:var(--ink);color:var(--paper)}
.btn--fill:hover{background:#000}
.btn--line{background:transparent;color:var(--ink);border-color:var(--rule)}
.btn--line:hover{border-color:var(--ink)}
.btn--lg{padding:15px 26px;font-size:1rem}

main{max-width:820px;margin:0 auto;padding:66px 26px 90px}

/* ---------- index ---------- */
.b-head h1{font-family:var(--display);font-weight:800;letter-spacing:-.035em;line-height:1.04;font-size:clamp(2.3rem,5.6vw,3.4rem);margin:16px 0 18px}
.b-head .lede{font-size:1.14rem;color:var(--ink-2);max-width:36rem}

.posts{list-style:none;margin-top:52px;border-top:1px solid var(--rule)}
.post-card{display:grid;grid-template-columns:150px 1fr;gap:26px;padding:30px 0;border-bottom:1px solid var(--rule);background:var(--paper)}
.post-card__meta{font-family:var(--mono);font-size:.8rem;color:var(--ink-3);line-height:1.8;padding-top:4px}
.post-card__meta b{display:block;color:var(--ink-2);font-weight:500}
.post-card h2{font-family:var(--display);font-weight:800;font-size:1.55rem;letter-spacing:-.03em;line-height:1.12;margin-bottom:10px}
.post-card p{color:var(--ink-2);font-size:.98rem}
.post-card__go{display:inline-block;margin-top:14px;font-family:var(--mono);font-size:.8rem;color:var(--ink);
  border-bottom:1px solid var(--ink);padding-bottom:1px}
.post-card__go i{font-style:normal;display:inline-block;transition:transform .25s var(--ease)}
.post-card:hover .post-card__go i{transform:translateX(4px)}
/* rows slide rather than lift (motion.css loads first, this overrides) */
@media (prefers-reduced-motion:no-preference){
  .post-card:hover{box-shadow:none;transform:translateX(4px)}
}

.subscribe{margin-top:56px;border:1px solid var(--rule);border-radius:var(--r);background:var(--paper-2);padding:28px 28px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.subscribe p{color:var(--ink-2);max-width:30rem;font-size:.97rem}
.subscribe b{color:var(--ink);font-family:var(--display);font-size:1.15rem;letter-spacing:-.02em;display:block;margin-bottom:4px}

/* ---------- a post ---------- */
.post__head{margin-bottom:40px}
.post__head h1{font-family:var(--display);font-weight:800;letter-spacing:-.035em;line-height:1.06;font-size:clamp(2.1rem,5vw,3rem);margin:16px 0 16px}
.post__meta{font-family:var(--mono);font-size:.8rem;color:var(--ink-3)}
.post__body{max-width:40rem}
.post__body p{color:var(--ink-2);margin-bottom:1.15em;font-size:1.06rem}
.post__body h2{font-family:var(--display);font-weight:700;font-size:1.45rem;letter-spacing:-.025em;line-height:1.2;margin:1.9em 0 .6em;color:var(--ink)}
.post__body strong{color:var(--ink);font-weight:600}
.post__body blockquote{border-left:2px solid var(--ink);padding:4px 0 4px 20px;margin:1.6em 0;font-family:var(--display);
  font-size:1.3rem;font-weight:700;letter-spacing:-.02em;line-height:1.3;color:var(--ink)}
.post__body .log{font-family:var(--mono);font-size:.88rem;color:var(--ink-3);border-block:1px solid var(--rule);padding:16px 0;margin:1.6em 0;line-height:1.8}
.post__body .log b{color:var(--ink-2);font-weight:500}
.post__body ul,.post__body ol{margin:0 0 1.2em 1.1em;color:var(--ink-2)}
.post__body li{margin-bottom:.4em}
.post__body a{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}

.post__body h3{font-family:var(--display);font-weight:700;font-size:1.15rem;letter-spacing:-.02em;line-height:1.3;margin:1.5em 0 .45em;color:var(--ink)}
.post__body .criteria{border:1px solid var(--rule);border-radius:var(--r);background:var(--paper-2);padding:20px 22px 8px;margin:1.6em 0}
.post__body .criteria ul{margin-bottom:.8em}
.post__body .cmp{width:min(768px,calc(100vw - 44px));overflow-x:auto;-webkit-overflow-scrolling:touch;margin:1.6em 0;border:1px solid var(--rule);border-radius:var(--r)}
.post__body .cmp table{border-collapse:collapse;width:100%;min-width:700px;font-size:.86rem;line-height:1.5}
.post__body .cmp th,.post__body .cmp td{text-align:left;vertical-align:top;padding:12px 14px;border-bottom:1px solid var(--rule);color:var(--ink-2)}
.post__body .cmp thead th{font-family:var(--mono);font-size:.74rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-3);background:var(--paper-2)}
.post__body .cmp tbody th{font-family:var(--display);font-weight:700;color:var(--ink);white-space:nowrap}
.post__body .cmp tbody tr:last-child th,.post__body .cmp tbody tr:last-child td{border-bottom:0}
.post__body .cmp tr.cmp__us{background:#fffbe0}
.post__body .cmp__note{font-size:.88rem;color:var(--ink-3)}
.post__body .answer{border-left:3px solid var(--mark);padding:2px 0 2px 18px;margin:1.4em 0}

.post__end{margin-top:56px;padding-top:34px;border-top:1px solid var(--rule);display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap}
.post__end p{color:var(--ink-2);max-width:26rem}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--rule);padding:34px 26px;text-align:center}
.foot a{font-size:.9rem;color:var(--ink-3)}
.foot a:hover{color:var(--ink)}
.foot__copy{font-family:var(--mono);font-size:.78rem;color:var(--ink-3);margin-top:12px}.foot__copy a{color:inherit;text-decoration:underline;text-underline-offset:2px}

@media (max-width:640px){
  body{font-size:16px}
  main{padding:48px 22px 70px}
  .bar__in{padding:0 18px}
  .bar__links{gap:14px}
  .bar__links .btn{display:none}
  .post-card{grid-template-columns:1fr;gap:8px}
  .post-card__meta b{display:inline;margin-right:10px}
}

/* ---------- cover illustrations ---------- */
.post-card{grid-template-columns:150px 1fr 230px}
.post-card__img{display:block;align-self:start;border-radius:var(--r);overflow:hidden;border:1px solid var(--rule)}
.post-card__img img,.post__cover img{display:block;width:100%;height:auto}
.post__cover{margin:0 0 44px;border-radius:var(--r);overflow:hidden;border:1px solid var(--rule)}
@media (max-width:820px){
  .post-card{grid-template-columns:150px 1fr}
  .post-card__img{grid-column:1/-1;grid-row:1;max-width:460px}
}
@media (max-width:640px){
  .post-card{grid-template-columns:1fr}
  .post-card__img{max-width:none}
}