:root{
  --paper:#E9EDEA;
  --paper-deep:#DEE4DF;
  --ink:#16231F;
  --ink-soft:#3B4A44;
  --forest:#2F6B4F;
  --forest-deep:#20493A;
  --rust:#B5482C;
  --brass:#B4903F;
  --line:#C6CEC8;
  --tape:#F6F4EC;
  --tape-ink:#16231F;
  --tape-cream:#F6F4EC;
  --radius:2px;
}
html[data-theme="dark"]{
  --paper:#14181A;
  --paper-deep:#1F2521;
  --ink:#E7EBE6;
  --ink-soft:#A9B6AE;
  --forest:#55A47D;
  --forest-deep:#3E7A5B;
  --rust:#E2795A;
  --brass:#D9B463;
  --line:#35403A;
  --tape:#1E2420;
}
html{transition:background-color .2s ease;}
body{transition:background-color .2s ease, color .2s ease;}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--paper);
  background-image:
    linear-gradient(var(--paper-deep) 1px, transparent 1px),
    linear-gradient(90deg, var(--paper-deep) 1px, transparent 1px);
  background-size: 28px 28px;
  background-position: -1px -1px;
  color:var(--ink);
  font-family:'Inter', sans-serif;
  min-height:100vh;
}
.wrap{max-width:920px;margin:0 auto;padding:36px 20px 60px;}

/* Masthead */
.masthead{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  border-bottom:3px solid var(--ink);
  padding-bottom:14px;
  margin-bottom:6px;
}
.masthead a.brand{
  text-decoration:none;
  color:inherit;
}
.masthead h1{
  font-family:'Fraunces', serif;
  font-weight:700;
  font-size:clamp(2.4rem, 6vw, 3.6rem);
  margin:0;
  letter-spacing:-0.01em;
  line-height:0.9;
}
.masthead .stamp{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.72rem;
  text-transform:uppercase;
  letter-spacing:0.12em;
  color:var(--forest-deep);
  border:1.5px solid var(--forest-deep);
  padding:5px 9px;
  border-radius:var(--radius);
  transform:rotate(-2deg);
  white-space:nowrap;
}
.masthead-right{
  display:flex;
  align-items:center;
  gap:10px;
}
.theme-toggle{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.72rem;
  text-transform:uppercase;
  letter-spacing:0.08em;
  background:var(--paper-deep);
  color:var(--ink-soft);
  border:1.5px solid var(--ink);
  border-radius:20px;
  padding:6px 12px;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  gap:6px;
  white-space:nowrap;
}
.theme-toggle:hover{color:var(--ink);}
.theme-toggle .icon{font-size:0.85rem; line-height:1;}
.tagline{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.85rem;
  color:var(--ink-soft);
  margin:10px 0 30px;
  letter-spacing:0.02em;
}

/* Tabs styled as ledger index tabs -- now real links */
.tabs{
  display:flex;
  gap:6px;
  flex-wrap:wrap;
  margin-bottom:0;
  position:relative;
  z-index:2;
}
.tab{
  font-family:'Fraunces', serif;
  font-weight:600;
  font-size:0.95rem;
  background:var(--paper-deep);
  color:var(--ink-soft);
  border:2px solid var(--ink);
  border-bottom:none;
  padding:11px 18px 13px;
  cursor:pointer;
  border-radius:8px 8px 0 0;
  transform:translateY(3px);
  transition:transform .15s ease, background .15s ease, color .15s ease;
  text-decoration:none;
  display:inline-block;
}
.tab:hover{transform:translateY(0px); color:var(--ink);}
.tab.active{
  background:var(--tape);
  color:var(--ink);
  transform:translateY(0);
  z-index:3;
}
.tab .num{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.7rem;
  color:var(--forest);
  margin-right:6px;
}
.tabs.category-tabs{
  margin-bottom:6px;
}
.tabs.category-tabs .tab{
  font-size:0.82rem;
  padding:8px 14px 10px;
  color:var(--ink-soft);
  opacity:0.85;
}
.tabs.category-tabs .tab.active{
  opacity:1;
  color:var(--ink);
}
.tabs.subtabs{
  margin-bottom:0;
}

.panel-frame{
  background:var(--tape);
  border:2px solid var(--ink);
  border-radius:0 8px 8px 8px;
  padding:32px;
  position:relative;
}
@media (max-width:600px){ .panel-frame{padding:20px 16px;} }

.panel{display:grid; grid-template-columns: 1.1fr 0.9fr; gap:34px; animation:fade .25s ease;}
@media (max-width:760px){ .panel{grid-template-columns:1fr;} }
@keyframes fade{from{opacity:0; transform:translateY(4px);} to{opacity:1; transform:translateY(0);}}

h2.tool-title{
  font-family:'Fraunces', serif;
  font-size:1.5rem;
  font-weight:600;
  margin:0 0 4px;
}
.tool-sub{
  font-size:0.85rem;
  color:var(--ink-soft);
  margin:0 0 22px;
}
.tool-copy{
  font-size:0.88rem;
  color:var(--ink-soft);
  line-height:1.6;
  margin-top:22px;
  border-top:1px dashed var(--line);
  padding-top:18px;
}
.tool-copy h2{
  font-family:'Fraunces', serif;
  font-size:1rem;
  color:var(--ink);
  margin:0 0 6px;
}

label{
  display:block;
  font-family:'IBM Plex Mono', monospace;
  font-size:0.7rem;
  text-transform:uppercase;
  letter-spacing:0.08em;
  color:var(--ink-soft);
  margin-bottom:5px;
}
.field{margin-bottom:16px;}
.row{display:flex; gap:12px;}
.row > .field{flex:1;}
input[type=number], input[type=text], select{
  width:100%;
  font-family:'IBM Plex Mono', monospace;
  font-size:1rem;
  background:var(--paper);
  border:1.5px solid var(--line);
  border-radius:var(--radius);
  padding:9px 10px;
  color:var(--ink);
}
input:focus, select:focus{
  outline:none;
  border-color:var(--forest);
  box-shadow:0 0 0 3px rgba(47,107,79,0.15);
}
.chiprow{display:flex; gap:8px; margin-top:8px; flex-wrap:wrap;}
.chip{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.78rem;
  background:var(--paper);
  border:1.5px solid var(--line);
  border-radius:20px;
  padding:5px 12px;
  cursor:pointer;
  color:var(--ink-soft);
}
.chip.active{
  background:var(--forest);
  border-color:var(--forest);
  color:#fff;
}
.add-item, .remove-item{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.78rem;
  background:none;
  border:1.5px dashed var(--ink-soft);
  color:var(--ink-soft);
  border-radius:var(--radius);
  padding:7px 12px;
  cursor:pointer;
}
.remove-item{border:none; text-decoration:underline; padding:0; margin-left:8px;}
.item-block{
  border-top:1px dashed var(--line);
  padding-top:12px;
  margin-top:12px;
}
.item-block:first-of-type{border-top:none; padding-top:0; margin-top:0;}

/* Receipt tape - the signature element */
.tape{
  background:var(--tape-ink);
  color:var(--tape-cream);
  border-radius:var(--radius);
  padding:22px 20px 26px;
  font-family:'IBM Plex Mono', monospace;
  position:relative;
  min-height:220px;
}
.tape::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:-8px;
  height:16px;
  background:
    linear-gradient(135deg, var(--tape-ink) 25%, transparent 25%) -8px 0,
    linear-gradient(225deg, var(--tape-ink) 25%, transparent 25%) -8px 0;
  background-size:16px 16px;
  background-repeat:repeat-x;
}
.tape-title{
  font-size:0.68rem;
  text-transform:uppercase;
  letter-spacing:0.14em;
  color:#9FB3A8;
  margin-bottom:14px;
  border-bottom:1px dashed #3E5249;
  padding-bottom:10px;
}
.tape-line{
  display:flex;
  justify-content:space-between;
  gap:10px;
  font-size:0.86rem;
  padding:5px 0;
  color:#D9E3DC;
}
.tape-line.total{
  border-top:1px dashed #3E5249;
  margin-top:8px;
  padding-top:12px;
  font-size:1.05rem;
  font-weight:600;
  color:#fff;
}
.tape-line .val{font-weight:600;}
.tape-line.total .val{color:var(--brass);}
.tape-note{
  margin-top:16px;
  font-size:0.72rem;
  color:#8CA398;
  line-height:1.5;
}
.tape-empty{
  color:#7C9088;
  font-size:0.85rem;
  line-height:1.6;
}

.winner-badge{
  display:inline-block;
  font-size:0.68rem;
  text-transform:uppercase;
  letter-spacing:0.08em;
  background:var(--brass);
  color:#241A08;
  padding:2px 7px;
  border-radius:3px;
  margin-left:8px;
}

footer{
  margin-top:26px;
  font-family:'IBM Plex Mono', monospace;
  font-size:0.72rem;
  color:var(--ink-soft);
  text-align:center;
}
footer a{color:var(--ink-soft);}

.rate-status{
  font-size:0.72rem;
  color:var(--ink-soft);
  margin-top:6px;
  min-height:16px;
}
.rate-status.loading{color:var(--brass);}
.rate-status.err{color:var(--rust);}

/* Home page tool index */
.tool-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
  margin-top:10px;
}
@media (max-width:600px){ .tool-grid{grid-template-columns:1fr;} }
.tool-card{
  display:block;
  background:var(--tape);
  border:2px solid var(--ink);
  border-radius:8px;
  padding:22px;
  text-decoration:none;
  color:var(--ink);
  transition:transform .15s ease, box-shadow .15s ease;
}
.tool-card:hover{
  transform:translateY(-3px);
  box-shadow:4px 4px 0 var(--forest-deep);
}
.tool-card .num{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.72rem;
  color:var(--forest);
  display:block;
  margin-bottom:8px;
}
.tool-card h4{
  font-family:'Fraunces', serif;
  font-size:1.25rem;
  margin:0 0 8px;
}
.tool-card p{
  font-size:0.85rem;
  color:var(--ink-soft);
  margin:0;
  line-height:1.5;
}
.category-section{
  margin-top:36px;
  scroll-margin-top:24px;
}
.category-section:first-of-type{
  margin-top:24px;
}
.category-heading{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.75rem;
  text-transform:uppercase;
  letter-spacing:0.1em;
  color:var(--forest);
  border-bottom:1px dashed var(--line);
  padding-bottom:8px;
  margin:0 0 14px;
}
.breadcrumb{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.75rem;
  color:var(--ink-soft);
  margin:14px 2px 10px;
}
.breadcrumb a{
  color:var(--ink-soft);
  text-decoration:none;
}
.breadcrumb a:hover{
  color:var(--ink);
  text-decoration:underline;
}
.breadcrumb .sep{
  margin:0 7px;
  color:var(--line);
}