/* Us and Them · usandthem.work
   Design tokens and components lifted from trolleyproblems.work (live styles.css, 31 Oct 2026), adapted.
   See docs/brand/brand-and-style-guide.md */
:root{
  --paper:#f3f1ea; --card:#fbfaf6; --ink:#161616; --ink-2:#3a3a3a; --muted:#6c6a63;
  --line:#2b2b2b; --sky:#b7d3f6; --rust:#a4472b; --hl:#e9f06a;
  --agent-blue:#9fb4d8; --amber:#e9a54a; --tint-sky:#eef5fe; --tint-rust:#fff3ef;
  --mono:"IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans:"Inter", "Helvetica Neue", Arial, system-ui, sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.5;-webkit-font-smoothing:antialiased;font-size:16.5px}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.wrap.narrow{max-width:880px}
a{color:inherit}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--rust);outline-offset:2px}
.skip{position:absolute;left:-999px;top:0;background:var(--hl);padding:8px 12px;border:1px solid var(--line);font-family:var(--mono);font-size:12px;z-index:9}
.skip:focus{left:8px}

/* Byline banner (from TP) */
.byline-bar{background:var(--ink);color:#f3f1ea}
.byline{display:flex;align-items:baseline;gap:10px 12px;padding-top:9px;padding-bottom:9px;font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;min-width:0}
.by-name{color:#fff;font-weight:600;text-decoration:none;white-space:nowrap;border-bottom:1px solid rgba(255,255,255,.4)}
.by-name:hover{border-bottom-color:var(--hl);color:var(--hl)}
.by-tag{color:#bdb9ae;flex:1;min-width:0;line-height:1.5}
.by-tag i{font-style:normal;color:#6f6c64;margin:0 2px}

/* Masthead */
.masthead{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding-top:22px;padding-bottom:14px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:12px;letter-spacing:.14em}
.brand{font-weight:600;text-decoration:none;display:flex;align-items:center;gap:10px}
.brand img{width:22px;height:22px}
.brand .amp{background:var(--hl);border:1px solid var(--line);padding:0 4px;margin:0 2px}
.nav{display:flex;flex-wrap:wrap;gap:4px 16px;text-transform:uppercase}
.nav a{text-decoration:none;color:var(--ink-2);padding:2px 0;border-bottom:1px solid transparent}
.nav a:hover,.nav a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--ink)}

/* Type */
.eyebrow,.label{font-family:var(--mono);font-size:11.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-2);margin:0 0 8px}
h1,h2,h3{letter-spacing:-.02em}
.hero{padding:44px 0 26px}
.hero h1,.page-head h1{font-size:clamp(34px,6vw,58px);line-height:1.02;letter-spacing:-.025em;margin:6px 0 12px;font-weight:800}
.tag{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;display:inline-block;background:var(--hl);border:1px solid var(--line);padding:3px 8px;margin:0 0 18px}
.strap{font-size:clamp(19px,2.6vw,24px);line-height:1.35;font-weight:700;margin:0 0 10px;max-width:36em}
.question{font-size:clamp(17px,2.2vw,20px);color:var(--ink-2);margin:0 0 18px;max-width:44em}
.lede{color:var(--ink-2);margin:0 0 16px;font-size:16px;max-width:44em}
section.block{padding:40px 0 10px;border-top:1px solid var(--line)}
section.block h2{font-size:clamp(26px,4vw,36px);margin:4px 0 10px;line-height:1.1}
.page-head{padding:34px 0 18px;border-bottom:1px solid var(--line);margin-bottom:26px}
.prose{max-width:44em}
.prose h2{font-size:clamp(22px,3vw,28px);margin:34px 0 8px;line-height:1.15}
.prose h3{font-size:19px;margin:24px 0 6px}
.prose p,.prose li{color:var(--ink-2)}
.prose table{border-collapse:collapse;width:100%;margin:12px 0 20px;font-size:15px;background:var(--card)}
.prose th,.prose td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.prose th{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;background:var(--paper)}
.src{font-family:var(--mono);font-size:11px;letter-spacing:.04em;color:var(--muted)}
.src a{color:var(--muted)}

/* Figure panel (from TP) */
.fig{margin:0 0 28px;border:1px solid var(--line);background:var(--sky);position:relative}
.fig-head{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:11.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;position:relative}
.corner{position:absolute;width:10px;height:10px}
.corner.tl{left:6px;top:6px;border-left:1.5px solid var(--line);border-top:1.5px solid var(--line)}
.corner.br{right:6px;bottom:6px;border-right:1.5px solid var(--line);border-bottom:1.5px solid var(--line)}
.fig-head span.t{padding-left:8px}
.crosshair{font-size:14px;color:var(--ink-2)}
.fig-body{padding:10px 14px 6px}
.fig-body img{display:block;width:100%;height:auto}
.fig-status{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;background:var(--paper);border-top:1px solid var(--line);padding:12px 14px;font-family:var(--mono);font-size:11.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;position:relative}

/* Hero grid */
.hero-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:32px;align-items:center}

/* Cards */
.grid{display:grid;gap:16px;margin:18px 0 28px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g6{grid-template-columns:repeat(3,1fr)}
.card{border:1px solid var(--line);background:var(--card);padding:18px 18px 16px;text-decoration:none;display:block}
a.card{transition:background .15s, transform .1s}
a.card:hover{background:#fff;transform:translateY(-1px)}
.card h3{margin:0 0 6px;font-size:20px;letter-spacing:-.01em}
.card p{margin:0 0 8px;color:var(--ink-2);font-size:15px}
.card p:last-child{margin-bottom:0}
.card .big{font-size:34px;font-weight:800;letter-spacing:-.03em;line-height:1;margin:6px 0 8px;color:var(--ink)}
.card.risk{border-top:4px solid var(--rust)}
.card.cost{border-top:4px solid var(--agent-blue)}
.card.enable{border-top:4px solid var(--hl)}
.card.hl{background:var(--hl)}
.card.sky{background:var(--tint-sky)}
.num{font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.12em}

/* Manifesto list */
.manifesto{counter-reset:m;list-style:none;padding:0;margin:18px 0 28px;display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);background:var(--card)}
.manifesto li{counter-increment:m;padding:14px 16px 14px 58px;position:relative;border-bottom:1px solid var(--line);font-size:16px}
.manifesto li:nth-child(odd){border-right:1px solid var(--line)}
.manifesto li::before{content:counter(m,decimal-leading-zero);position:absolute;left:16px;top:15px;font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.1em;background:var(--paper);border:1px solid var(--line);padding:1px 5px}
.manifesto li strong{display:block;font-size:17px}
.manifesto li span{color:var(--ink-2);font-size:15px}
.manifesto.single{grid-template-columns:1fr}
.manifesto.single li{border-right:none}

/* Buttons (from TP) */
.btn{display:inline-block;text-decoration:none;font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;background:var(--card);color:var(--ink);border:1.5px solid var(--line);padding:11px 16px;cursor:pointer;box-shadow:2px 2px 0 var(--line);transition:transform .08s, box-shadow .08s, background .15s}
.btn:hover{background:#fff}
.btn:active{transform:translate(2px,2px);box-shadow:0 0 0 var(--line)}
.btn-ink{background:var(--ink);color:#fbfaf6}
.btn-ink:hover{background:#000}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin:8px 0 24px}

/* Table-like list for rooms */
.rooms{border:1px solid var(--line);background:var(--card);margin:18px 0 28px}
.room{display:grid;grid-template-columns:150px 110px 1fr;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line);align-items:baseline}
.room:last-child{border-bottom:none}
.room b{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase}
.room i{font-style:normal;font-family:var(--mono);font-size:11px;letter-spacing:.12em;background:var(--paper);border:1px solid var(--line);padding:1px 6px;justify-self:start}
.room span{color:var(--ink-2);font-size:15px}

/* Ladder */
.ladder{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border:1px solid var(--line);margin:18px 0 28px}
.rung{padding:14px;border-right:1px solid var(--line);background:var(--card)}
.rung:last-child{border-right:none;background:var(--hl)}
.rung .num{display:block;margin-bottom:6px}
.rung strong{display:block;font-size:16px;margin-bottom:4px}
.rung span{font-size:14px;color:var(--ink-2)}

/* Post list */
.posts{list-style:none;padding:0;margin:18px 0 28px;border-top:1px solid var(--line)}
.posts li{border-bottom:1px solid var(--line);padding:14px 0;display:grid;grid-template-columns:150px 1fr;gap:14px}
.posts .meta{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);padding-top:4px}
.posts a{font-weight:700;font-size:19px;text-decoration:none;letter-spacing:-.01em}
.posts a:hover{text-decoration:underline}
.posts p{margin:4px 0 0;color:var(--ink-2);font-size:15px}
.posts .soon a{pointer-events:none;color:var(--muted)}

/* Form */
.form{border:1px solid var(--line);border-top:3px solid var(--ink);background:var(--paper);padding:22px 24px 24px;margin:18px 0 32px;max-width:640px}
.form label{display:block;font-family:var(--mono);font-size:11.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;margin:12px 0 6px}
.form input,.form select,.form textarea{width:100%;font:inherit;font-size:16px;padding:10px 12px;border:1.5px solid var(--line);background:var(--card)}
.form .note{font-size:13.5px;color:var(--muted);margin:12px 0 0}
.form .hp{position:absolute;left:-9999px}

/* Callout */
.callout{border:1px solid var(--line);background:var(--tint-sky);padding:16px 18px;margin:18px 0 24px}
.callout.warn{background:var(--tint-rust);border-color:var(--rust)}

.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;border-top:1px solid var(--line);margin-top:40px;padding-top:16px;padding-bottom:40px;font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--muted)}
.foot a{color:var(--muted)}

@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr}
  .g3,.g6{grid-template-columns:1fr 1fr}
  .ladder{grid-template-columns:1fr}
  .rung{border-right:none;border-bottom:1px solid var(--line)}
}
@media (max-width:640px){
  .wrap{padding:0 14px}
  .g2,.g3,.g6{grid-template-columns:1fr}
  .manifesto{grid-template-columns:1fr}
  .manifesto li:nth-child(odd){border-right:none}
  .room{grid-template-columns:1fr}
  .posts li{grid-template-columns:1fr;gap:4px}
  .byline{flex-wrap:wrap;font-size:11px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}a.card,.btn{transition:none}}
@media print{.byline-bar,.nav,.form{display:none}body{background:#fff}}