/* =========================================================
   Toolshed — shared design system
   "Field notes from the workbench": warm paper, ink text, terracotta
   stamps, letterpress serif headlines + typewriter controls.
   Used by the homepage (index.html) and every tool page under tools/.
   Tool pages layer their widget-specific styles in tool.css.
   ========================================================= */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

/* ---------- Tokens (light first) ---------- */
:root{
  --paper:#efe9dd;
  --surface:#fbf8f1;
  --surface-2:#e5ddcc;
  --ink:#211d17;
  --ink-2:#6f6657;
  --ink-3:#a49a88;
  --rule:#d8cfbc;
  --rule-2:#bfb3a0;
  --accent:#b3402a;
  --accent-ink:#7a2b1b;
  --accent-soft:#f3e4d8;
  --ok:#2e7d4e;

  /* Legacy alias tokens — tool.css files still reference the old
     names. Keep them mapped to the current palette so all
     7 tools render correctly without edits. */
  --bg:var(--paper);
  --text:var(--ink);
  --text-2:var(--ink-2);
  --text-3:var(--ink-3);
  --border:var(--rule);
  --border-2:var(--rule-2);
  --grass:#2e7d4e;
  --coral:#b3402a;
  --cobalt:#3d5a80;

  --radius:10px;
  --radius-sm:6px;

  --max:1040px;
  --pad:24px;

  --font:Georgia,"Times New Roman",Times,serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;


}

@media (prefers-color-scheme:dark){
  :root{
    --paper:#17150f;
    --surface:#211e17;
    --surface-2:#2b271e;
    --ink:#f0ead9;
    --ink-2:#b3a896;
    --ink-3:#7d7363;
    --rule:#38332a;
    --rule-2:#4b4438;
    --accent:#ff8a5e;
    --accent-ink:#ffb896;
    --accent-soft:#2f1d12;
    --ok:#7cc99a;

    /* Legacy alias tokens (dark palette) */
    --bg:var(--paper);
    --text:var(--ink);
    --text-2:var(--ink-2);
    --text-3:var(--ink-3);
    --border:var(--rule);
    --border-2:var(--rule-2);
    --grass:#7cc99a;
    --coral:#ff8a5e;
    --cobalt:#8fb3e8;
  }
}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}

body{
  font-family:var(--font);
  font-size:16px;
  line-height:1.55;
  background:
    radial-gradient(160px 120px at 12% 8%,rgba(179,64,42,.05),transparent 60%),
    radial-gradient(200px 140px at 88% 4%,rgba(179,64,42,.04),transparent 60%);
  background-color:var(--paper);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
img,svg{display:block;max-width:100%}

::selection{background:var(--accent);color:var(--paper)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

.wrap{
  width:100%;
  max-width:var(--max);
  margin:0 auto;
  padding:0 var(--pad);
}
@media (max-width:520px){ .wrap{padding:0 18px} }

main{flex:1 0 auto;width:100%}

/* =========================================================
   Header (double-ruled letterhead)
   ========================================================= */
.hd{
  border-top:1px solid var(--rule-2);
  border-bottom:1px solid var(--rule);
  background:var(--paper);
}
.hd-in{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:64px;
  gap:16px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
}
.logo .logo-mark{
  width:22px;
  height:22px;
  border-radius:6px;
  background:var(--ink);
  position:relative;
  flex-shrink:0;
}
.logo .logo-mark::before,
.logo .logo-mark::after{
  content:"";
  position:absolute;
  left:5px;
  right:5px;
  height:2px;
  border-radius:1px;
}
.logo .logo-mark::before{top:6px;background:var(--accent)}
.logo .logo-mark::after{top:11px;background:var(--paper);right:9px}

.hd nav{display:flex;align-items:center;gap:20px}
.hd nav a{
  font-family:var(--mono);
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--ink-2);
  transition:color .15s;
}
.hd nav a:hover{color:var(--accent)}
.hd nav a.gh{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 11px;
  border:1px solid var(--rule-2);
  border-radius:var(--radius-sm);
  color:var(--ink);
  transition:background .15s,border-color .15s;
}
.hd nav a.gh:hover{background:var(--surface-2)}
@media (max-width:600px){
  .hd nav a:not(.gh){display:none}
}

/* =========================================================
   Tool page header
   ========================================================= */
.toolhead{
  padding:44px 0 30px;
}
@media (max-width:600px){ .toolhead{padding:30px 0 22px} }

.crumb{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.04em;
  text-transform:uppercase;
  color:var(--ink-3);
  margin-bottom:10px;
}
.crumb a{color:var(--ink-2);transition:color .15s}
.crumb a:hover{color:var(--accent)}
.toolhead h1{
  font-size:clamp(1.7rem,3.4vw,2.3rem);
  font-weight:400;
  letter-spacing:-.02em;
  line-height:1.1;
  margin-bottom:10px;
  text-wrap:balance;
}
.toolhead h1:after{
  content:"";
  display:block;
  width:52px;
  height:3px;
  margin-top:12px;
  background:var(--accent);
  border-radius:2px;
}
.toolhead .lede{
  font-size:15.5px;
  line-height:1.6;
  color:var(--ink-2);
  max-width:56ch;
}

/* =========================================================
   Tool body panes (paper cards)
   ========================================================= */
.toolbody{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:22px;
  padding:0 0 56px;
}
@media (max-width:760px){
  .toolbody{grid-template-columns:1fr}
}
.toolbody.single{grid-template-columns:1fr;max-width:760px}
@media (max-width:760px){ .toolbody.single{max-width:none} }

.pane{
  background:var(--surface);
  border:1px solid var(--rule);
  border-radius:var(--radius);
  box-shadow:0 8px 24px -14px rgba(33,29,23,.28);
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.pane-header{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:10px;
  flex-wrap:wrap;
}
.pane-title{
  display:block;
  font-family:var(--mono);
  font-size:10.5px;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--ink-3);
}
.pane textarea,
.pane input[type="text"],
.pane input[type="number"],
.pane select{
  width:100%;
  font-family:var(--mono);
  font-size:13px;
  color:var(--ink);
  background:var(--paper);
  border:1px solid var(--rule-2);
  border-radius:var(--radius-sm);
  padding:12px;
  outline:none;
  transition:border-color .15s,box-shadow .15s;
  resize:vertical;
}
.pane textarea:focus,
.pane input:focus,
.pane select:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px var(--accent-soft);
}
.pane textarea{min-height:200px}
.pane textarea[readonly]{color:var(--ink-2)}
.pane textarea::placeholder,.pane input::placeholder{color:var(--ink-3)}

.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}

/* ---------- Buttons (typewriter keys) ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-family:var(--mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.05em;
  text-transform:uppercase;
  padding:9px 13px;
  background:var(--ink);
  color:var(--paper);
  border-radius:var(--radius-sm);
  box-shadow:0 2px 0 var(--rule-2);
  transition:transform .08s ease,box-shadow .08s ease,opacity .15s;
}
.btn:hover{opacity:.9}
.btn:active{transform:translateY(1px);box-shadow:none}
.btn.secondary{
  background:var(--surface);
  color:var(--ink);
  border:1px solid var(--rule-2);
  box-shadow:none;
}
.btn.secondary:hover{ border-color:var(--ink-3); opacity:1; }
.btn.secondary:active{transform:translateY(1px)}
.btn.danger{
  background:transparent;
  color:var(--ink-2);
  border:1px dashed var(--rule);
}
.btn.danger:hover{
  color:var(--accent-ink);
  border-color:var(--accent);
  background:var(--accent-soft);
  opacity:1;
}
.btn:disabled{ opacity:.45; cursor:not-allowed; }
.btn:disabled:hover{opacity:.45}
.btn:disabled:active{transform:none;box-shadow:0 2px 0 var(--rule-2)}

/* ---------- Status ---------- */
.status{
  font-family:var(--mono);
  font-size:12px;
  color:var(--ink-2);
  padding:7px 11px;
  border-radius:var(--radius-sm);
  background:var(--surface-2);
}
.status.ok{ color:var(--ok); background:rgba(46,125,78,.1) }
.status.error{
  color:var(--accent-ink);
  background:var(--accent-soft);
}
.status.hidden{display:none}
.hidden{display:none !important}

.hint{
  font-size:13px;
  color:var(--ink-3);
  line-height:1.5;
}

/* =========================================================
   Homepage hero (drafting table)
   ========================================================= */
.hero{
  padding:88px 0 76px;
  text-align:center;
  background-image:
    linear-gradient(var(--rule) 1px,transparent 1px),
    linear-gradient(90deg,var(--rule) 1px,transparent 1px);
  background-size:26px 26px;
  background-position:center;
  mask-image:radial-gradient(ellipse 78% 92% at 50% 40%,#000 58%,transparent 100%);
  -webkit-mask-image:radial-gradient(ellipse 78% 92% at 50% 40%,#000 58%,transparent 100%);
}
@media (max-width:600px){ .hero{padding:62px 0 48px} }

.hero .tag{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--mono);
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--ink-2);
  margin-bottom:26px;
}
.hero .tag .dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 3px var(--accent-soft);
}
.hero h1{
  font-family:var(--font);
  font-size:clamp(2rem,5vw,3.55rem);
  font-weight:400;
  letter-spacing:-.03em;
  line-height:1.04;
  max-width:16ch;
  margin:0 auto 20px;
  text-wrap:balance;
}
.hero h1 em{
  font-style:italic;
  color:var(--accent);
}
.hero p{
  font-size:clamp(15.5px,1.4vw,17.5px);
  line-height:1.6;
  color:var(--ink-2);
  max-width:50ch;
  margin:0 auto 38px;
}

/* Search */
.search{
  position:relative;
  max-width:500px;
  margin:0 auto;
  box-shadow:0 10px 28px -18px rgba(33,29,23,.35);
  border-radius:var(--radius);
}
.search input{
  width:100%;
  font-family:var(--mono);
  font-size:14px;
  color:var(--ink);
  background:var(--surface);
  border:1px solid var(--rule-2);
  border-radius:var(--radius);
  padding:15px 46px 15px 46px;
  outline:none;
  transition:border-color .15s,box-shadow .15s;
}
.search input::placeholder{color:var(--ink-3)}
.search input:hover{border-color:var(--ink-3)}
.search input:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 4px var(--accent-soft);
}
.search-icon{
  position:absolute;
  left:17px;
  top:50%;
  transform:translateY(-50%);
  color:var(--ink-3);
  pointer-events:none;
}
.search-key{
  position:absolute;
  right:13px;
  top:50%;
  transform:translateY(-50%);
  font-family:var(--mono);
  font-size:10.5px;
  color:var(--ink-3);
  background:var(--surface-2);
  border:1px solid var(--rule);
  border-radius:4px;
  padding:1px 6px;
  pointer-events:none;
}
.search:focus-within .search-key{opacity:0}

/* =========================================================
   Homepage sections
   ========================================================= */
.sect{
  padding:60px 0 76px;
  border-top:1px solid var(--rule);
}
@media (max-width:600px){ .sect{padding:42px 0 56px} }

.sect-head{
  margin-bottom:30px;
}
.sect-head h2{
  font-size:1.45rem;
  font-weight:400;
  letter-spacing:-.01em;
  margin-bottom:4px;
}
.sect-head h2:after{
  content:"";
  display:block;
  width:34px;
  height:2px;
  margin-top:8px;
  background:var(--accent);
  border-radius:2px;
}
.sect-head .sub{
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--ink-3);
}

/* ---------- Chips (stamp buttons) ---------- */
.chips{
  display:flex;
  flex-wrap:wrap;
  gap:7px;
  margin-bottom:26px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-family:var(--mono);
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.05em;
  text-transform:uppercase;
  color:var(--ink-2);
  background:var(--surface);
  border:1px solid var(--rule);
  border-radius:999px;
  padding:6px 13px;
  transition:all .15s;
  white-space:nowrap;
}
.chip:hover{color:var(--ink);border-color:var(--rule-2)}
.chip .n{
  font-size:10px;
  color:var(--ink-3);
  font-variant-numeric:tabular-nums;
}
.chip[aria-pressed="true"]{
  color:var(--paper);
  background:var(--accent);
  border-color:var(--accent);
  box-shadow:0 2px 0 var(--accent-ink);
}
.chip[aria-pressed="true"] .n{color:var(--paper);opacity:.7}

/* ---------- Tool grid (filed cards) ---------- */
.tools{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:16px;
  list-style:none;
}
@media (max-width:520px){
  .tools{grid-template-columns:1fr}
}

.tool{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--rule);
  border-radius:var(--radius);
  box-shadow:0 6px 18px -12px rgba(33,29,23,.22);
  padding:22px 20px;
  min-height:158px;
  transition:border-color .15s,transform .15s,box-shadow .15s;
  position:relative;
}
.tool:hover{
  border-color:var(--rule-2);
  transform:translateY(-2px);
  box-shadow:0 14px 30px -16px rgba(33,29,23,.3);
}
.tool:after{
  content:"";
  position:absolute;
  left:0; top:14px; bottom:14px;
  width:3px;
  border-radius:2px;
  background:var(--accent);
  opacity:0;
  transition:opacity .15s;
}
.tool:hover:after{opacity:1}

.tool-mark{
  width:32px;
  height:32px;
  border-radius:8px;
  border:1px solid var(--rule-2);
  background:var(--surface-2);
  color:var(--accent-ink);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--mono);
  font-size:12.5px;
  font-weight:700;
  margin-bottom:16px;
  transition:background .15s,color .15s,border-color .15s;
}
.tool:hover .tool-mark{
  background:var(--accent);
  border-color:var(--accent);
  color:var(--paper);
}

.tool h3{
  font-family:var(--font);
  font-size:16.5px;
  font-weight:400;
  letter-spacing:-.005em;
  margin-bottom:7px;
  line-height:1.3;
}
.tool h3:after{
  content:"";
  display:block;
  width:22px;
  height:2px;
  margin-top:7px;
  background:var(--rule-2);
  transition:background .15s,width .15s;
}
.tool:hover h3:after{width:34px;background:var(--accent)}
.tool p{
  font-size:13.5px;
  line-height:1.55;
  color:var(--ink-2);
  flex:1;
  margin-bottom:16px;
}
.tool .tags{
  display:flex;
  gap:6px;
  flex-wrap:wrap;
  padding-top:13px;
  border-top:1px solid var(--rule);
}
.tool .tag{
  font-family:var(--mono);
  font-size:9.5px;
  font-weight:600;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--ink-3);
}

.empty{
  padding:56px 20px;
  text-align:center;
  color:var(--ink-3);
  font-size:14px;
  border:1.5px dashed var(--rule-2);
  border-radius:var(--radius);
  background:var(--surface);
}
.empty a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}

/* ---------- Principles(ledger) ---------- */
.rules{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:34px;
}
@media (max-width:840px){
  .rules{grid-template-columns:repeat(2,1fr);gap:30px 26px}
}
@media (max-width:480px){
  .rules{grid-template-columns:1fr;gap:28px}
}

.rule .n{
  font-family:var(--mono);
  font-size:10.5px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:.14em;
  margin-bottom:13px;
  display:block;
}
.rule h3{
  font-size:16.5px;
  font-weight:400;
  letter-spacing:-.005em;
  margin-bottom:6px;
  line-height:1.35;
}
.rule h3:after{
  content:"";
  display:block;
  width:20px;
  height:2px;
  margin-top:7px;
  background:var(--rule-2);
}
.rule p{
  font-size:13.5px;
  line-height:1.55;
  color:var(--ink-2);
}
.rule code{
  font-family:var(--mono);
  font-size:.85em;
  background:var(--surface-2);
  border:1px solid var(--rule);
  border-radius:4px;
  padding:2px 6px;
  color:var(--ink);
}

/* ---------- Contribute ---------- */
.add{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:52px;
  align-items:center;
}
@media (max-width:760px){
  .add{grid-template-columns:1fr;gap:30px}
}

.add h2{
  font-size:clamp(1.4rem,2.6vw,1.9rem);
  font-weight:400;
  letter-spacing:-.02em;
  line-height:1.15;
  margin-bottom:12px;
  text-wrap:balance;
}
.add .lede{
  font-size:15.5px;
  line-height:1.6;
  color:var(--ink-2);
  margin-bottom:24px;
  max-width:44ch;
}
.add .lede code{
  font-family:var(--mono);
  font-size:.85em;
  background:var(--surface-2);
  border:1px solid var(--rule);
  border-radius:4px;
  padding:2px 6px;
  color:var(--ink);
}
.add .btn{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-family:var(--mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.05em;
  text-transform:uppercase;
  padding:11px 16px;
  background:var(--ink);
  color:var(--paper);
  border-radius:var(--radius-sm);
  box-shadow:0 2px 0 var(--rule-2);
  transition:transform .08s ease,box-shadow .08s ease,opacity .15s;
}
.add .btn:hover{opacity:.88}
.add .btn:active{transform:translateY(1px);box-shadow:none}
.add .btn .arr{transition:transform .15s}
.add .btn:hover .arr{transform:translateX(3px)}

.code{
  background:var(--surface);
  border:1px solid var(--rule);
  border-radius:var(--radius);
  box-shadow:0 8px 24px -14px rgba(33,29,23,.28);
  padding:18px 20px;
  overflow-x:auto;
}
.code pre{
  font-family:var(--mono);
  font-size:12.5px;
  line-height:1.9;
  color:var(--ink-2);
  white-space:pre;
}
.code pre .c{color:var(--ink-3)}
.code pre .k{color:var(--accent)}
.code pre .s{color:var(--ink)}

/* =========================================================
   Footer
   ========================================================= */
.foot{
  border-top:1px solid var(--rule);
  padding:28px 0 40px;
  width:100%;
}
.foot-in{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
}
.foot .cr{
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.05em;
  color:var(--ink-3);
}
.foot .cr a{color:var(--ink-2);transition:color .15s}
.foot .cr a:hover{color:var(--accent)}
.foot nav{
  display:flex;
  gap:20px;
  flex-wrap:wrap;
}
.foot nav a{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.05em;
  text-transform:uppercase;
  color:var(--ink-3);
  transition:color .15s;
}
.foot nav a:hover{color:var(--ink)}

@media (max-width:480px){
  .foot-in{flex-direction:column;align-items:flex-start;gap:16px}
}

/* ---------- Motion (staggered reveals, reduced-motion-safe) ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
}
.hero .tag,
.hero h1,
.hero p,
.search{
  animation:rise .5s cubic-bezier(.2,.7,.3,1) both;
}
.hero .tag{animation-delay:.02s}
.hero h1{animation-delay:.08s}
.hero p{animation-delay:.14s}
.search{animation-delay:.2s}

@keyframes rise{
  from{opacity:0;transform:translateY(10px)}
  to{opacity:1;transform:none}
}

.chip,
.tool{
  animation:rise .4s cubic-bezier(.2,.7,.3,1) both;
}
.chip:nth-child(1){animation-delay:.02s}
.chip:nth-child(2){animation-delay:.05s}
.chip:nth-child(3){animation-delay:.08s}
.chip:nth-child(4){animation-delay:.11s}
.chip:nth-child(5){animation-delay:.14s}
.chip:nth-child(n+6){animation-delay:.17s}
.tool:nth-child(1){animation-delay:.03s}
.tool:nth-child(2){animation-delay:.07s}
.tool:nth-child(3){animation-delay:.11s}
.tool:nth-child(4){animation-delay:.15s}
.tool:nth-child(5){animation-delay:.19s}
.tool:nth-child(6){animation-delay:.23s}
.tool:nth-child(7){animation-delay:.27s}
.tool:nth-child(n+8){animation-delay:.31s}