:root{
  --rk-navy:#102653;
  --rk-blue:#1478d4;
  --rk-blue-dark:#0d5ca8;
  --rk-text:#27364b;
  --rk-muted:#667085;
  --rk-border:#dde7f1;
  --rk-bg:#f5f8fc;
  --rk-soft:#eef6ff;
  --rk-green:#15803d;
  --rk-red:#b42318;
  --rk-white:#fff;
}
*{box-sizing:border-box}
body{margin:0;background:var(--rk-bg);color:var(--rk-text);font-family:Arial,Helvetica,sans-serif;line-height:1.65}
.rk-page{max-width:1080px;margin:0 auto;padding:34px 18px 72px}
.rk-breadcrumb{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:0 0 18px;color:var(--rk-muted);font-size:13px}
.rk-breadcrumb a{color:var(--rk-blue);text-decoration:none}.rk-breadcrumb a:hover{text-decoration:underline}
.rk-hero{padding:40px 42px;border:1px solid var(--rk-border);border-radius:24px;background:linear-gradient(135deg,#fff 0%,#eef6ff 100%);box-shadow:0 16px 45px rgba(16,38,83,.08);margin-bottom:24px}
.rk-hero-compact{padding:32px 36px}
.rk-eyebrow{display:inline-block;color:var(--rk-blue);font-size:13px;font-weight:800;letter-spacing:.03em;text-transform:uppercase}
.rk-hero h1{margin:8px 0 12px;color:var(--rk-navy);font-size:clamp(31px,4vw,48px);line-height:1.12;letter-spacing:-.025em}
.rk-hero-compact h1{font-size:clamp(30px,3.5vw,43px)}
.rk-hero p{max-width:850px;margin:0;color:#43536a;font-size:18px}
.rk-hero-facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
.rk-hero-facts span{padding:9px 13px;border:1px solid #d3e5f8;border-radius:999px;background:#fff;color:#53647b;font-size:13px}
.rk-hero-facts strong{color:var(--rk-navy);font-size:15px}
.rk-search-card,.rk-content-card,.rk-links-card,.rk-source-card{margin:24px 0;padding:30px;border:1px solid var(--rk-border);border-radius:20px;background:#fff;box-shadow:0 10px 30px rgba(16,38,83,.05)}
.rk-search-copy h2,.rk-content-card h2,.rk-links-card h2,.rk-source-card h2{margin:5px 0 10px;color:var(--rk-navy);font-size:clamp(24px,3vw,32px);line-height:1.2}
.rk-content-card h3,.rk-search-card h3,.rk-links-card h3{margin:27px 0 7px;color:var(--rk-navy);font-size:20px;line-height:1.3}
.rk-content-card p,.rk-search-copy p,.rk-source-card p{margin:10px 0;color:#44546a}
.rk-content-card a,.rk-source-card a{color:var(--rk-blue);font-weight:700}
.rk-search-form{margin-top:20px}
.rk-search-form label{display:block;margin-bottom:7px;color:var(--rk-navy);font-weight:800}
.rk-search-row{display:grid;grid-template-columns:1fr auto;gap:10px}
.rk-search-row input{width:100%;min-height:52px;padding:13px 15px;border:1px solid #cbd9e7;border-radius:11px;background:#fbfdff;color:#1f2d42;font:inherit;font-size:16px;outline:none}
.rk-search-row input:focus{border-color:var(--rk-blue);box-shadow:0 0 0 3px rgba(20,120,212,.12);background:#fff}
.rk-search-row button,.rk-button{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:13px 21px;border:0;border-radius:11px;background:var(--rk-blue);color:#fff!important;font:inherit;font-weight:800;text-decoration:none;cursor:pointer;white-space:nowrap}
.rk-search-row button:hover,.rk-button:hover{background:var(--rk-blue-dark);text-decoration:none}
.rk-search-form small{display:block;margin-top:8px;color:var(--rk-muted);font-size:12px}
.rk-calculator-box{display:grid;grid-template-columns:1fr auto;gap:25px;align-items:center;margin-top:25px;padding:22px;border:1px solid #cfe3f7;border-radius:15px;background:var(--rk-soft)}
.rk-calculator-box h3{margin:4px 0;color:var(--rk-navy);font-size:20px}
.rk-calculator-box p{margin:0;color:#52657c;font-size:14px}
.rk-message{margin-top:18px;padding:13px 15px;border-radius:10px;font-size:14px}
.rk-message-error{border:1px solid #f1c9c5;background:#fff6f5;color:#8f2219}
.rk-search-results{margin-top:24px;border-top:1px solid var(--rk-border);padding-top:20px}
.rk-result-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}
.rk-result-card{display:flex;flex-direction:column;padding:15px;border:1px solid var(--rk-border);border-radius:12px;color:var(--rk-text);text-decoration:none;background:#fff}
.rk-result-card:hover{border-color:#9ec8ef;background:#f8fbff;text-decoration:none}
.rk-result-card strong{color:var(--rk-navy);font-size:16px}.rk-result-card span{font-size:13px;color:#52657c}.rk-result-card small{margin-top:4px;color:var(--rk-muted)}
.rk-mini-classes{margin-top:8px!important;color:var(--rk-blue)!important;font-weight:800}
.rk-class-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:24px 0}
.rk-class-card{position:relative;padding:23px;border:1px solid var(--rk-border);border-radius:18px;background:#fff;box-shadow:0 8px 25px rgba(16,38,83,.05)}
.rk-class-card>span:first-child{display:block;color:#56677d;font-size:14px;font-weight:800}
.rk-class-card>strong{display:block;margin:3px 0;color:var(--rk-navy);font-size:44px;line-height:1.05}
.rk-class-card>small{display:block;color:var(--rk-muted);font-size:12px}
.rk-class-card>.rk-change{position:absolute;right:16px;top:17px}
.rk-change{display:inline-flex;align-items:center;justify-content:center;min-width:28px;padding:2px 7px;border-radius:999px;font-size:11px;font-weight:900;vertical-align:middle}
.rk-down{background:#eaf8ef;color:var(--rk-green)}.rk-up{background:#fff0ee;color:var(--rk-red)}.rk-same{background:#eef2f6;color:#596779}
.rk-note{margin-top:22px;padding:16px 18px;border-left:4px solid var(--rk-blue);border-radius:8px;background:#f5faff;color:#44546a}
.rk-state-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:18px}
.rk-state-grid a{display:flex;flex-direction:column;padding:16px;border:1px solid var(--rk-border);border-radius:12px;background:#fff;text-decoration:none}
.rk-state-grid a:hover{border-color:#9ec8ef;background:#f8fbff;text-decoration:none}
.rk-state-grid strong{color:var(--rk-navy);font-size:15px}.rk-state-grid span{color:var(--rk-muted);font-size:12px}
.rk-table-wrap{overflow-x:auto;margin-top:18px;border:1px solid var(--rk-border);border-radius:13px}
.rk-table{width:100%;border-collapse:collapse;background:#fff;font-size:14px}
.rk-table th,.rk-table td{padding:12px 13px;border-bottom:1px solid #e8eef5;text-align:left;white-space:nowrap}
.rk-table thead th{background:#f1f6fb;color:var(--rk-navy);font-size:12px;text-transform:uppercase;letter-spacing:.03em}
.rk-table tbody th{font-weight:700}.rk-table tbody tr:last-child th,.rk-table tbody tr:last-child td{border-bottom:0}
.rk-table a{color:var(--rk-blue);text-decoration:none}.rk-table a:hover{text-decoration:underline}
.rk-legend{font-size:12px!important;color:var(--rk-muted)!important}
.rk-link-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.rk-link-grid a{display:flex;flex-direction:column;padding:18px;border:1px solid var(--rk-border);border-radius:13px;text-decoration:none;background:#fff}
.rk-link-grid a:hover{border-color:#9ec8ef;background:#f8fbff}
.rk-link-grid strong{color:var(--rk-navy);font-size:15px}.rk-link-grid span{margin-top:5px;color:#617087;font-size:13px}
.rk-source-card{background:#f9fbfd}.rk-source-card p{font-size:13px}.rk-source-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:14px}.rk-source-links a{font-size:13px}
@media(max-width:860px){
  .rk-page{padding-top:24px}
  .rk-hero{padding:29px 25px}
  .rk-search-card,.rk-content-card,.rk-links-card,.rk-source-card{padding:23px}
  .rk-state-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rk-link-grid{grid-template-columns:1fr}
  .rk-calculator-box{grid-template-columns:1fr}
  .rk-class-grid{grid-template-columns:1fr}
}
@media(max-width:600px){
  .rk-page{padding-left:13px;padding-right:13px}
  .rk-hero{padding:24px 20px;border-radius:18px}
  .rk-hero p{font-size:16px}
  .rk-search-card,.rk-content-card,.rk-links-card,.rk-source-card{padding:19px;border-radius:16px}
  .rk-search-row{grid-template-columns:1fr}
  .rk-search-row button{width:100%}
  .rk-result-grid,.rk-state-grid{grid-template-columns:1fr}
  .rk-table th,.rk-table td{padding:10px 11px}
}
.rk-card-title{display:block;font-weight:800;color:#102653}