:root{
  --paper: #FBF7EF;
  --paper-alt: #F3ECDC;
  --ink: #2B2620;
  --ink-soft: #5B5449;
  --chalk-green: #33544A;
  --chalk-green-deep: #23392F;
  --mustard: #C6931E;
  --mustard-soft: #E9D4A4;
  --line: rgba(43,38,32,0.14);
  --radius: 14px;
  --font-display: "Lora", Georgia, serif;
  --font-body: "Karla", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*{box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

.sr-only{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px;
  overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0;
}

a{color:var(--chalk-green);}

.wrap{
  max-width:760px;
  margin:0 auto;
  padding:0 24px;
}
.wrap-narrow{max-width:560px;}

/* subtle chalk-dust texture over the whole page */
.chalk-texture{
  position:fixed; inset:0; pointer-events:none; z-index:0;
  opacity:0.035;
  background-image:
    radial-gradient(circle at 20% 30%, #000 0, transparent 1px),
    radial-gradient(circle at 65% 70%, #000 0, transparent 1px),
    radial-gradient(circle at 85% 15%, #000 0, transparent 1px),
    radial-gradient(circle at 40% 85%, #000 0, transparent 1px);
  background-size: 140px 140px;
}

/* Header */
.site-header{
  border-bottom:1px solid var(--line);
  background:var(--paper);
  position:sticky; top:0; z-index:10;
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 24px;
}
.brand{
  display:flex; align-items:center; gap:8px;
  text-decoration:none; color:var(--ink);
}
.brand-icon{
  width:34px; height:34px;
  border-radius:9px;
  display:block;
}
.brand-name{
  font-family:var(--font-display); font-weight:600; font-size:20px;
  letter-spacing:0.01em;
}
.lang-picker select{
  font-family:var(--font-body);
  font-size:14px;
  padding:8px 12px;
  border-radius:8px;
  border:1px solid var(--line);
  background:var(--paper);
  color:var(--ink);
  cursor:pointer;
}
.lang-picker select:focus-visible{
  outline:2px solid var(--chalk-green);
  outline-offset:2px;
}

/* Hero */
.hero{
  position:relative;
  padding:64px 0 40px;
  overflow:hidden;
}
.eyebrow{
  font-size:13px;
  text-transform:uppercase;
  letter-spacing:0.14em;
  color:var(--mustard);
  font-weight:700;
  margin:0 0 10px;
}
.hero h1{
  font-family:var(--font-display);
  font-size:clamp(40px, 7vw, 60px);
  font-weight:600;
  margin:0 0 20px;
  color:var(--chalk-green-deep);
}
.hero-sum{
  font-size:19px;
  max-width:52ch;
  color:var(--ink-soft);
  margin:0;
}
.hero-equation{
  margin-top:36px;
  width:100%;
  max-width:520px;
}
.hero-equation svg{width:100%; height:auto; display:block;}
.chalk-eq{
  font-family:var(--font-display);
  font-style:italic;
  font-size:64px;
  fill:none;
  stroke:var(--mustard-soft);
  stroke-width:1.4px;
  paint-order:stroke;
}

/* Sections */
.section{
  padding:56px 0;
  border-top:1px solid var(--line);
}
.section.alt{
  background:var(--paper-alt);
}
.section h2{
  font-family:var(--font-display);
  font-size:28px;
  font-weight:600;
  margin:0 0 24px;
  color:var(--chalk-green-deep);
}

/* Steps */
.steps{
  list-style:none;
  counter-reset:step;
  margin:0 0 24px;
  padding:0;
  display:grid;
  gap:14px;
}
.steps li{
  counter-increment:step;
  position:relative;
  padding-left:44px;
  min-height:28px;
}
.steps li::before{
  content:counter(step);
  position:absolute; left:0; top:-1px;
  width:28px; height:28px;
  border-radius:50%;
  background:var(--chalk-green);
  color:var(--paper);
  font-family:var(--font-display);
  font-weight:600;
  font-size:14px;
  display:flex; align-items:center; justify-content:center;
}
.note{
  color:var(--ink-soft);
  font-size:15px;
  border-left:3px solid var(--mustard);
  padding-left:14px;
}

/* Languages */
#langs-intro{color:var(--ink-soft);}
.callout-title{
  font-weight:700;
  margin-top:24px;
  margin-bottom:10px;
}
.jazh-list{
  margin:0 0 20px;
  padding-left:20px;
  display:grid;
  gap:8px;
}
.jazh-list li strong{color:var(--chalk-green-deep);}
#langs-closing{color:var(--ink-soft); font-size:15px;}

/* FAQ */
.faq-list{
  display:grid;
  gap:2px;
  border-top:1px solid var(--line);
}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-item summary{
  cursor:pointer;
  list-style:none;
  padding:18px 4px;
  font-weight:600;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  font-family:var(--font-display);
  font-size:22px;
  color:var(--mustard);
  flex-shrink:0;
  transition:transform 0.15s ease;
}
.faq-item[open] summary::after{
  transform:rotate(45deg);
}
.faq-item p{
  margin:0 0 18px;
  padding:0 4px;
  color:var(--ink-soft);
}

/* Contact form */
#contact-form{
  display:grid;
  gap:6px;
}
#contact-form label{
  font-weight:600;
  font-size:14px;
  margin-top:14px;
}
#contact-form select,
#contact-form input,
#contact-form textarea{
  font-family:var(--font-body);
  font-size:16px;
  padding:11px 14px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--paper);
  color:var(--ink);
  width:100%;
}
#contact-form select:focus-visible,
#contact-form input:focus-visible,
#contact-form textarea:focus-visible{
  outline:2px solid var(--chalk-green);
  outline-offset:1px;
}
#contact-form textarea{resize:vertical;}
#send-btn{
  margin-top:22px;
  align-self:start;
  padding:12px 28px;
  border-radius:10px;
  border:none;
  background:var(--chalk-green);
  color:var(--paper);
  font-family:var(--font-body);
  font-weight:700;
  font-size:15px;
  cursor:pointer;
  transition:background 0.15s ease;
}
#send-btn:hover{background:var(--chalk-green-deep);}
#send-btn:focus-visible{
  outline:2px solid var(--mustard);
  outline-offset:2px;
}

/* Footer */
.site-footer{
  padding:32px 0 48px;
  text-align:center;
}
.site-footer p{
  color:var(--ink-soft);
  font-size:14px;
  margin:0;
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .faq-item summary::after{transition:none;}
}

@media (max-width:560px){
  .hero{padding:44px 0 28px;}
  .section{padding:40px 0;}
}