@import url('https://fonts.googleapis.com/css2?family=Archivo+Black&family=Archivo:wght@400;500;600;700&family=JetBrains+Mono:wght@500&display=swap');

:root{
  --navy:#0F1C2E;
  --navy-light:#1C3050;
  --gold:#C99A3D;
  --gold-light:#E8C878;
  --cream:#FAF8F4;
  --cream-dim:#F1ECE2;
  --ink:#1A1A18;
  --ink-soft:#5C5A52;
  --line:#DDD6C7;
  --green:#2F6B4F;
  --green-bg:#E7F0E9;
  --red:#9A3324;
  --red-bg:#FBEAE6;
}
*{box-sizing:border-box;}
body{margin:0;}
.oc-app{
  font-family:'Archivo', sans-serif;
  background:var(--cream);
  color:var(--ink);
  line-height:1.55;
}
.oc-app h1,.oc-app h2,.oc-app h3{
  font-family:'Archivo Black', sans-serif;
  font-weight:400;
  margin:0;
  color:var(--navy);
  letter-spacing:-0.01em;
}

.oc-hero{
  background:var(--navy);
  padding:48px 32px 56px;
  position:relative;
  overflow:hidden;
}
.oc-hero::before{
  content:"";
  position:absolute;
  top:0; right:0;
  width:280px; height:280px;
  background:repeating-linear-gradient(45deg, transparent 0 11px, rgba(201,154,61,0.07) 11px 12px);
  pointer-events:none;
}
.oc-hero-eyebrow{
  color:var(--gold-light);
  font-family:'JetBrains Mono', monospace;
  font-size:12.5px;
  letter-spacing:0.12em;
  text-transform:uppercase;
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:10px;
}
.oc-hero-eyebrow::before{
  content:"";
  width:8px;height:8px;
  background:var(--gold);
  display:inline-block;
  border-radius:1px;
}
.oc-hero h1{
  color:#fff;
  font-size:34px;
  line-height:1.15;
  max-width:560px;
  position:relative;
}
.oc-hero h1 span{color:var(--gold-light);}
.oc-hero p{
  color:#C7CDD6;
  font-size:15.5px;
  max-width:520px;
  margin-top:16px;
  position:relative;
}
.oc-hero-stats{
  display:flex;
  gap:28px;
  margin-top:28px;
  flex-wrap:wrap;
  position:relative;
}
.oc-hero-stat .oc-num{
  font-family:'Archivo Black', sans-serif;
  color:var(--gold-light);
  font-size:22px;
  display:block;
}
.oc-hero-stat .oc-label{
  color:#9AA4B2;
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:0.06em;
}

.oc-section{
  max-width:680px;
  margin:0 auto;
  padding:40px 32px;
}
.oc-section-label{
  font-family:'JetBrains Mono', monospace;
  font-size:11.5px;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--ink-soft);
  margin-bottom:6px;
}
.oc-section h2{
  font-size:21px;
  margin-bottom:18px;
}

.oc-courses{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.oc-course{
  background:#fff;
  border:1px solid var(--line);
  border-radius:2px;
  padding:20px 22px;
  cursor:pointer;
  transition:border-color .15s ease, box-shadow .15s ease;
  position:relative;
}
.oc-course:hover{border-color:var(--navy-light);}
.oc-course.selected{
  border-color:var(--gold);
  box-shadow:inset 0 0 0 1px var(--gold);
}
.oc-course-top{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:16px;
}
.oc-course-title{
  font-family:'Archivo', sans-serif;
  font-weight:700;
  font-size:16.5px;
  color:var(--navy);
  margin:0 0 4px;
}
.oc-course-sub{
  color:var(--ink-soft);
  font-size:13.5px;
  margin:0;
}
.oc-course-price{
  font-family:'Archivo Black', sans-serif;
  color:var(--navy);
  font-size:20px;
  white-space:nowrap;
  text-align:right;
}
.oc-course-price small{
  display:block;
  font-family:'Archivo', sans-serif;
  font-weight:400;
  font-size:11px;
  color:var(--ink-soft);
  text-transform:uppercase;
  letter-spacing:0.04em;
  margin-top:2px;
}
.oc-radio-dot{
  width:18px;height:18px;
  border-radius:50%;
  border:1.5px solid var(--line);
  flex-shrink:0;
  margin-top:2px;
  position:relative;
}
.oc-course.selected .oc-radio-dot{border-color:var(--gold);}
.oc-course.selected .oc-radio-dot::after{
  content:"";
  position:absolute;
  inset:3px;
  background:var(--gold);
  border-radius:50%;
}
.oc-course-head{display:flex;gap:12px;align-items:flex-start;}

.oc-field{margin-bottom:16px;}
.oc-field label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--navy);
  margin-bottom:6px;
}
.oc-field .oc-hint, .oc-hint{
  font-size:12px;
  color:var(--ink-soft);
  margin-top:5px;
}
.oc-optional{font-weight:400; color:var(--ink-soft);}
input[type=text], input[type=tel], input[type=email], select{
  width:100%;
  height:42px;
  padding:0 13px;
  border:1px solid var(--line);
  border-radius:2px;
  background:#fff;
  font-family:'Archivo', sans-serif;
  font-size:14.5px;
  color:var(--ink);
}
input:focus, select:focus{
  outline:none;
  border-color:var(--navy-light);
  box-shadow:0 0 0 3px rgba(15,28,46,0.08);
}
.oc-row2{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.oc-radiogroup{display:flex;gap:10px;}
.oc-radiogroup label{
  flex:1;
  display:flex;
  align-items:center;
  justify-content:center;
  height:42px;
  border:1px solid var(--line);
  border-radius:2px;
  font-size:13.5px;
  font-weight:600;
  color:var(--ink-soft);
  cursor:pointer;
  margin:0;
  position:relative;
}
.oc-radiogroup input{position:absolute;opacity:0;pointer-events:none;}
.oc-radiogroup label:has(input:checked){
  border-color:var(--gold);
  background:#FBF6EA;
  color:var(--navy);
}

.oc-btn{
  width:100%;
  height:48px;
  background:var(--navy);
  color:#fff;
  border:none;
  border-radius:2px;
  font-family:'Archivo', sans-serif;
  font-weight:700;
  font-size:14.5px;
  letter-spacing:0.01em;
  cursor:pointer;
  margin-top:8px;
  transition:background .15s ease;
}
.oc-btn:hover{background:var(--navy-light);}
.oc-btn:disabled{background:#B9B6AC;cursor:not-allowed;}
.oc-btn-ghost{
  background:transparent;
  color:var(--navy);
  border:1px solid var(--line);
  font-weight:600;
}
.oc-btn-ghost:hover{background:var(--cream-dim);}

.oc-invoice{
  background:var(--navy);
  border-radius:2px;
  padding:26px 24px;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.oc-invoice::before{
  content:"";
  position:absolute;
  inset:0;
  background:repeating-linear-gradient(45deg, transparent 0 11px, rgba(201,154,61,0.05) 11px 12px);
}
.oc-invoice-row{
  display:flex;
  justify-content:space-between;
  position:relative;
  margin-bottom:14px;
}
.oc-invoice-label{
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:0.08em;
  color:#9AA4B2;
  margin-bottom:3px;
}
.oc-invoice-value{
  font-size:15px;
  font-weight:600;
}
.oc-ref-box{
  background:rgba(255,255,255,0.07);
  border:1px solid rgba(201,154,61,0.4);
  border-radius:2px;
  padding:14px 16px;
  margin:18px 0;
  text-align:center;
  position:relative;
}
.oc-ref-box .oc-invoice-label{color:var(--gold-light);text-align:center;}
.oc-ref-code{
  font-family:'JetBrains Mono', monospace;
  font-size:22px;
  font-weight:500;
  color:var(--gold-light);
  letter-spacing:0.04em;
}
.oc-divider{
  border-top:1px dashed rgba(255,255,255,0.2);
  margin:18px 0;
  position:relative;
}
.oc-bank-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px 20px;
  position:relative;
}
.oc-copy-btn{
  background:rgba(255,255,255,0.1);
  border:1px solid rgba(255,255,255,0.2);
  color:#fff;
  font-size:12px;
  padding:8px 12px;
  border-radius:2px;
  cursor:pointer;
  width:100%;
  margin-top:16px;
  font-family:'Archivo', sans-serif;
  font-weight:600;
  position:relative;
}
.oc-copy-btn:hover{background:rgba(255,255,255,0.16);}

.oc-paid-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:rgba(47,107,79,0.18);
  border:1px solid rgba(47,107,79,0.5);
  color:#A9D8BB;
  font-size:11.5px;
  font-weight:600;
  padding:5px 12px;
  border-radius:20px;
  margin-bottom:16px;
  position:relative;
}

.oc-success-banner{
  background:var(--green-bg);
  border:1px solid #B9D7C3;
  color:var(--green);
  padding:14px 16px;
  border-radius:2px;
  font-size:13.5px;
  font-weight:600;
  margin-bottom:20px;
  display:flex;
  gap:10px;
  align-items:flex-start;
}
.oc-success-banner.oc-pending{
  background:#FBF3E2;
  border-color:#E8D4A0;
  color:#8A6308;
}
.oc-error-banner{
  background:var(--red-bg);
  border:1px solid #E5BDB3;
  color:var(--red);
  padding:12px 14px;
  border-radius:2px;
  font-size:13px;
  font-weight:600;
  margin-bottom:16px;
}
.oc-error-text{
  color:var(--red);
  font-size:12.5px;
  margin-top:5px;
}

.oc-footer-note{
  text-align:center;
  font-size:12px;
  color:var(--ink-soft);
  padding:0 32px 40px;
}

@media (max-width:480px){
  .oc-row2{grid-template-columns:1fr;}
  .oc-hero h1{font-size:27px;}
  .oc-bank-grid{grid-template-columns:1fr;}
}