/* ==========================================================================
   Kujji — design system
   Palette and type scale are fixed by the design spec. Do not add colours.
   ========================================================================== */

:root{
  --ink:#101A17;
  --ink-2:#4A5A53;
  --ink-3:#7C8A83;
  --brand:#14624F;
  --brand-deep:#0C4638;
  --brand-tint:#E8F1ED;
  --accent:#C96A18;
  --accent-tint:#FBF0E4;
  --paper:#FFFFFF;
  --surface:#F7F5F0;
  --line:#E4DFD5;
  --line-2:#CFC8BA;
  --success:#2F7D4F;
  --error:#B4231F;

  --r-sm:10px;
  --r-md:14px;
  --r-pill:99px;

  --font-ui:"Inter",-apple-system,"Segoe UI",system-ui,"Helvetica Neue",Arial,sans-serif;
  --font-sheet:"Andika","Inter",-apple-system,"Segoe UI",system-ui,sans-serif;
  --font-mono:ui-monospace,"SF Mono","Cascadia Mono",Consolas,monospace;

  --shadow:0 1px 2px rgba(16,26,23,.06),0 8px 24px -12px rgba(16,26,23,.18);

  /* sheet geometry — set per paper size by JS */
  --pw:215.9mm;
  --ph:279.4mm;
  --pm:12mm;
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--surface);
  color:var(--ink);
  font-family:var(--font-ui);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.015em;font-weight:650}
h1{font-size:clamp(28px,4vw,38px);letter-spacing:-.025em}
h2{font-size:22px}
h3{font-size:17px}
h4{font-size:15px}
p{margin:0 0 14px}
a{color:var(--brand);text-underline-offset:3px}
a:hover{color:var(--brand-deep)}
img,svg{max-width:100%}
code{font-family:var(--font-mono);font-size:.875em;background:var(--brand-tint);color:var(--brand-deep);padding:1px 5px;border-radius:4px}

.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.narrow{max-width:760px}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:100;
  background:var(--brand);color:#fff;padding:10px 16px;border-radius:0 0 var(--r-sm) 0;
}
.skip-link:focus{left:0}

/* ---------- header ---------- */

.site-header{
  background:var(--paper);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:30;
}
.site-header .wrap{display:flex;align-items:center;gap:28px;min-height:64px}
.brand{
  font-weight:600;font-size:19px;letter-spacing:-.02em;
  color:var(--ink);text-decoration:none;flex:none;
}
.brand::after{content:"";display:inline-block;width:6px;height:6px;background:var(--accent);border-radius:1px;margin-left:4px;vertical-align:2px}
.site-nav{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}
.site-nav a{
  color:var(--ink-2);text-decoration:none;font-size:14px;font-weight:500;
  padding:8px 12px;border-radius:var(--r-sm);
}
.site-nav a:hover{background:var(--brand-tint);color:var(--brand-deep)}
.site-nav a[aria-current="true"]{color:var(--brand-deep);background:var(--brand-tint)}
.header-cta{margin-left:4px}

/* ---------- buttons ---------- */

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font:inherit;font-size:14px;font-weight:600;line-height:1;
  padding:12px 18px;border-radius:var(--r-sm);border:1px solid transparent;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:background-color .12s ease,border-color .12s ease,color .12s ease;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);color:#fff}
.btn-secondary{background:var(--paper);color:var(--brand-deep);border-color:var(--line-2)}
.btn-secondary:hover{border-color:var(--brand);background:var(--brand-tint);color:var(--brand-deep)}
.btn-quiet{background:transparent;color:var(--ink-2);padding:12px 10px}
.btn-quiet:hover{color:var(--brand-deep);background:var(--brand-tint)}
.btn-sm{padding:8px 13px;font-size:13px}
.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;
}

/* ---------- breadcrumbs ---------- */

.breadcrumbs{font-size:13px;color:var(--ink-3);padding-block:18px 0}
.breadcrumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0}
.breadcrumbs li:not(:last-child)::after{content:"›";margin-left:6px;color:var(--line-2)}
.breadcrumbs a{color:var(--ink-3);text-decoration:none}
.breadcrumbs a:hover{color:var(--brand);text-decoration:underline}
.breadcrumbs [aria-current]{color:var(--ink-2)}

/* ---------- page intro ---------- */

.page-intro{padding-block:20px 24px}
.page-intro h1{max-width:22ch}
.page-intro .lede{font-size:17px;color:var(--ink-2);max-width:66ch;margin:12px 0 0}
.page-intro .lede:last-child{margin-bottom:0}

/* ---------- tool shell ---------- */

.tool{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:20px;
  margin:0 0 40px;
}
.tool-grid{display:grid;grid-template-columns:300px minmax(0,1fr);gap:20px}

.tool-controls{display:flex;flex-direction:column;gap:18px}
.fieldset{border:0;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.fieldset > legend{
  font-size:11px;font-weight:600;letter-spacing:.07em;text-transform:uppercase;
  color:var(--ink-3);padding:0;margin-bottom:2px;
}
.field{display:flex;flex-direction:column;gap:5px}
.field > label{font-size:13px;font-weight:600;color:var(--ink-2)}
.field .hint{font-size:12px;color:var(--ink-3);line-height:1.5}

select,input[type="text"],input[type="number"]{
  font:inherit;font-size:14px;color:var(--ink);background:var(--paper);
  border:1px solid var(--line-2);border-radius:var(--r-sm);
  padding:9px 11px;width:100%;appearance:none;
}
select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' fill='none' stroke='%237C8A83' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px}
input[type="range"]{width:100%;accent-color:var(--brand)}

.checks{display:flex;flex-wrap:wrap;gap:8px 16px}
.check{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-2);cursor:pointer}
.check input{accent-color:var(--brand);width:16px;height:16px;margin:0;flex:none}

.tool-submit{display:flex;gap:8px;align-items:center;padding-top:4px;border-top:1px solid var(--line);margin-top:2px}
.tool-submit .btn-primary{flex:1}

/* ---------- preview ---------- */

.tool-preview{display:flex;flex-direction:column;gap:12px;min-width:0}
.preview-bar{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--ink-3)}
.preview-bar .spacer{margin-left:auto}
.zoom{display:flex;align-items:center;gap:2px;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden}
.zoom button{
  border:0;background:var(--paper);color:var(--ink-2);font:inherit;font-size:15px;
  width:30px;height:28px;cursor:pointer;line-height:1;
}
.zoom button:hover{background:var(--brand-tint);color:var(--brand-deep)}
.zoom span{font-size:12px;color:var(--ink-3);min-width:42px;text-align:center;font-variant-numeric:tabular-nums}

.preview-viewport{
  background:#EDEAE3;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:20px;overflow:auto;height:620px;
}
.preview-stage{transform-origin:top left;display:flex;flex-direction:column;gap:20px;width:max-content}

/* ---------- the printed sheet ---------- */

.sheet{
  background:#fff;color:#000;
  width:var(--pw);min-height:var(--ph);padding:var(--pm);
  font-family:var(--font-sheet);font-variant-numeric:tabular-nums;
  box-shadow:var(--shadow);
  display:flex;flex-direction:column;
  position:relative;
}
.sheet + .sheet{margin-top:0}
.sheet-title{font-family:var(--font-ui);font-size:15px;font-weight:650;margin:0 0 6px}
.sheet-meta{
  display:flex;gap:16px;justify-content:space-between;
  font-family:var(--font-ui);font-size:10.5pt;color:#000;
  border-bottom:1px solid #000;padding-bottom:7px;margin-bottom:16px;
}
.sheet-meta span{white-space:nowrap}
.sheet-body{flex:1}
.sheet-foot{
  display:flex;justify-content:space-between;gap:16px;
  font-family:var(--font-ui);font-size:8pt;color:#5A5A5A;
  border-top:1px solid #BBB;padding-top:6px;margin-top:16px;
}

.qgrid{display:grid;gap:16px 20px}
.qgrid.h{grid-template-columns:repeat(var(--cols,3),1fr)}
.qgrid.h .q{font-size:15pt;padding-bottom:4px;border-bottom:1px solid #D5D0C6;white-space:nowrap}
.qgrid.v{grid-template-columns:repeat(var(--cols,2),1fr);gap:12px 18px}
.qgrid.v .q{font-size:13.5pt;padding:0 0 2px}
.vq{display:inline-grid;justify-items:end;row-gap:1px;line-height:1.3}
.vq .rule{border-top:1.2px solid #000;width:100%;height:0;margin:1px 0}
.qgrid.v .q{break-inside:avoid}
.answer-sheet .qgrid.h .q{color:#000}
.ans{color:var(--accent);font-weight:600}

/* chart */
.chart-table{border-collapse:collapse;font-size:11pt;width:100%}
.chart-table th,.chart-table td{border:1px solid #333;text-align:center;padding:3px 0;font-variant-numeric:tabular-nums}
.chart-table th{background:#EFEFEF;font-weight:600}
.chart-table td.hl{background:#FCEFD9}
.chart-table td.blank{color:transparent}

/* number line + coordinate plane */
.fig-svg{display:block;width:100%;height:auto}

/* ---------- actions + presets ---------- */

.tool-actions{display:flex;flex-wrap:wrap;gap:8px;padding-top:16px;margin-top:16px;border-top:1px solid var(--line)}
.tool-actions .note-inline{font-size:12.5px;color:var(--ink-3);align-self:center;margin-left:auto}

.presets{margin:0 auto 40px}
.presets h3{font-size:15px;margin-bottom:4px}
.presets p{font-size:13.5px;color:var(--ink-2);margin-bottom:14px}
.preset-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:10px}
.preset{
  display:flex;flex-direction:column;gap:4px;align-items:flex-start;text-align:left;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:13px 15px;cursor:pointer;font:inherit;color:var(--ink);
  transition:border-color .12s ease,background-color .12s ease;
}
.preset:hover{border-color:var(--brand);background:var(--brand-tint)}
.preset b{font-size:13.5px;font-weight:600}
.preset span{font-size:12.5px;color:var(--ink-2);line-height:1.45}
.preset em{font-size:11px;font-style:normal;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--accent)}

/* ---------- prose content ---------- */

.content{padding-bottom:24px}
.content h2{margin:44px 0 12px}
.content h3{margin:28px 0 8px}
.content ul,.content ol{padding-left:22px;margin:0 0 14px}
.content li{margin:6px 0}
.content li::marker{color:var(--ink-3)}
.content .lede{font-size:17px;color:var(--ink-2);max-width:68ch}
.prose{max-width:70ch}

.callout{
  background:var(--brand-tint);border:1px solid #CFE2D9;border-radius:var(--r-md);
  padding:18px 20px;margin:20px 0;
}
.callout.warn{background:var(--accent-tint);border-color:#EDD9BE}
.callout h4{margin-bottom:6px}
.callout p:last-child{margin-bottom:0}

.example-q{
  font-family:var(--font-sheet);font-variant-numeric:tabular-nums;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:16px 18px;margin:14px 0;
}
.example-q ol{margin:0;padding-left:24px}
.example-q li{margin:8px 0}
.example-q .why{color:var(--ink-2);font-size:14px;font-family:var(--font-ui)}

/* ---------- FAQ ---------- */

.faq{margin:44px auto 0}
.faq details{border-bottom:1px solid var(--line);padding:2px 0}
.faq summary{
  cursor:pointer;font-weight:600;font-size:15.5px;padding:14px 0;list-style:none;
  display:flex;align-items:flex-start;gap:10px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"+";color:var(--brand);font-weight:600;flex:none;width:14px}
.faq details[open] summary::before{content:"−"}
.faq .answer{padding:0 0 16px 24px;color:var(--ink-2);max-width:70ch}
.faq .answer p:last-child{margin-bottom:0}

/* ---------- related links ---------- */

.related{margin:52px auto 0;padding-top:24px;border-top:1px solid var(--line)}
.related h3{margin-bottom:14px}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px}
.related-grid a{
  display:block;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:13px 15px;text-decoration:none;color:var(--ink);
}
.related-grid a:hover{border-color:var(--brand);background:var(--brand-tint)}
.related-grid b{display:block;font-size:13.5px;font-weight:600;margin-bottom:2px}
.related-grid span{font-size:12.5px;color:var(--ink-2);line-height:1.45}

/* ---------- home ---------- */

.hero{padding:56px 0 40px;border-bottom:1px solid var(--line)}
.hero h1{max-width:20ch}
.hero .lede{font-size:18px;color:var(--ink-2);max-width:60ch;margin:16px 0 26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.trust{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:13.5px;color:var(--ink-2);list-style:none;padding:0;margin:0}
.trust li{display:flex;align-items:center;gap:7px}
.trust li::before{content:"";width:14px;height:14px;flex:none;border-radius:50%;background:var(--brand-tint);border:1.5px solid var(--brand);position:relative}

.pillars{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:40px 0}
.pillar{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;text-decoration:none;color:var(--ink);display:block;
}
.pillar:hover{border-color:var(--brand);box-shadow:var(--shadow)}
.pillar h2{font-size:20px;margin-bottom:6px}
.pillar p{color:var(--ink-2);font-size:14.5px;margin-bottom:14px}
.pillar ul{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px}
.pillar li{font-size:12.5px;background:var(--brand-tint);color:var(--brand-deep);padding:3px 10px;border-radius:var(--r-pill);font-weight:500}

.section{padding-block:40px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin-bottom:18px}
.section-head h2{font-size:22px}
.section-head a{font-size:13.5px;text-decoration:none;font-weight:500}

.tool-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}
.tool-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px;text-decoration:none;color:var(--ink);display:flex;flex-direction:column;gap:4px;
}
.tool-card:hover{border-color:var(--brand);background:var(--brand-tint)}
.tool-card b{font-size:15px;font-weight:600}
.tool-card span{font-size:13px;color:var(--ink-2);line-height:1.5}

.audience{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.audience a{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px;text-decoration:none;color:var(--ink);
}
.audience a:hover{border-color:var(--brand);background:var(--brand-tint)}
.audience b{display:block;font-size:15px;margin-bottom:4px}
.audience span{font-size:13px;color:var(--ink-2);line-height:1.5}

/* ---------- footer ---------- */

.site-footer{background:var(--paper);border-top:1px solid var(--line);margin-top:56px;padding:40px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:28px}
.footer-grid h4{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);margin-bottom:10px}
.footer-grid ul{list-style:none;padding:0;margin:0}
.footer-grid li{margin:6px 0}
.footer-grid a{font-size:13.5px;color:var(--ink-2);text-decoration:none}
.footer-grid a:hover{color:var(--brand);text-decoration:underline}
.footer-about p{font-size:13.5px;color:var(--ink-2);max-width:38ch}
.footer-bottom{
  border-top:1px solid var(--line);margin-top:28px;padding-top:18px;
  font-size:12.5px;color:var(--ink-3);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}

/* ---------- toast ---------- */

.toast{
  position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(12px);
  background:var(--ink);color:#fff;font-size:13.5px;padding:11px 18px;border-radius:var(--r-sm);
  opacity:0;pointer-events:none;transition:opacity .18s ease,transform .18s ease;z-index:60;
  max-width:min(90vw,420px);text-align:center;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- responsive ---------- */

@media (max-width:900px){
  .tool-grid{grid-template-columns:1fr}
  .tool-controls{order:2}
  .tool-preview{order:1}
  .preview-viewport{height:460px;padding:12px}
  .pillars,.audience{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .site-header .wrap{flex-wrap:wrap;padding-top:10px;padding-bottom:10px}
  .site-nav{width:100%;margin-left:0;order:3}
  .header-cta{margin-left:auto}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr}
  .tool{padding:14px}
}

/* ---------- print ---------- */

@media print{
  html,body{background:#fff !important;margin:0 !important;padding:0 !important}

  /* 1. reset the preview scaffolding (must come before the hide rules) */
  .tool,.tool-grid,.tool-preview,.preview-viewport,.preview-stage{
    display:block !important;padding:0 !important;margin:0 !important;border:0 !important;
    background:none !important;max-width:none !important;overflow:visible !important;
    height:auto !important;width:auto !important;
  }
  .preview-stage{transform:none !important;zoom:1 !important;gap:0 !important}
  .wrap{max-width:none !important;padding:0 !important;margin:0 !important}

  /* 2. hide the site chrome — after the reset, so these win */
  .site-header,.site-footer,.breadcrumbs,.page-intro,.tool-controls,.tool-actions,
  .presets,.content,.faq,.related,.preview-bar,.toast,.skip-link,.header-cta,
  .hero,.pillars,.section,.tool-cards,.audience{display:none !important}

  .sheet{
    box-shadow:none !important;width:auto !important;min-height:0 !important;
    padding:0 !important;margin:0 !important;break-inside:auto;
  }
  .sheet + .sheet{break-before:page;page-break-before:always}
  .qgrid.h .q,.qgrid.v .q{break-inside:avoid}
  *{-webkit-print-color-adjust:exact;print-color-adjust:exact}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}