* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: #fff;
  color: #1a1a2e;
  line-height: 1.75;
  font-size: 16px;
}

.container { max-width: 800px; margin: 0 auto; padding: 32px 24px 64px; }

.brand { display: flex; align-items: center; gap: 10px; margin-bottom: 32px; font-weight: 800; color: #1a1a2e; text-decoration: none; font-size: 17px; }
.brand span { color: #d97706; }

h1 { font-size: 30px; line-height: 1.3; margin-bottom: 14px; }
h2 { font-size: 22px; margin-top: 42px; margin-bottom: 14px; color: #d97706; border-bottom: 2px solid #fbbf24; padding-bottom: 8px; }
h3 { font-size: 18px; margin-top: 28px; margin-bottom: 10px; }
p { margin-bottom: 14px; }
ul, ol { margin-bottom: 14px; padding-left: 26px; }
li { margin-bottom: 8px; }
a { color: #d97706; }

.lead { font-size: 18px; color: #444; margin-bottom: 8px; }
.updated { color: #999; font-size: 13px; margin-bottom: 32px; }

table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 15px; }
th, td { border: 1px solid #e2e8f0; padding: 9px 12px; text-align: left; }
th { background: #f8fafc; font-weight: 700; }

.tip { background: #fffbeb; border-left: 4px solid #f59e0b; padding: 14px 18px; margin: 20px 0; border-radius: 0 8px 8px 0; }
.important { background: #fef2f2; border-left: 4px solid #ef4444; padding: 14px 18px; margin: 20px 0; border-radius: 0 8px 8px 0; }
.note { background: #f8fafc; border: 1px solid #e2e8f0; padding: 14px 18px; margin: 20px 0; border-radius: 8px; font-size: 14px; color: #555; }

.calc { background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 14px; padding: 22px; margin: 24px 0; }
.calc label { display: block; font-size: 13px; font-weight: 700; color: #555; margin-bottom: 5px; }
.calc .row { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
.calc .field { flex: 1; min-width: 140px; }
.calc input, .calc select { width: 100%; padding: 10px 12px; border: 1px solid #cbd5e1; border-radius: 9px; font-size: 15px; background: #fff; }
.calc output { display: block; background: #1a1a2e; color: #fbbf24; border-radius: 11px; padding: 18px; text-align: center; font-size: 27px; font-weight: 800; }
.calc .breakdown { text-align: center; font-size: 13px; color: #666; margin-top: 10px; }

.cta { background: linear-gradient(135deg, #f59e0b, #d97706); color: #fff; border-radius: 14px; padding: 24px; margin: 40px 0 10px; text-align: center; }
.cta h3 { margin-top: 0; color: #fff; }
.cta p { color: #fff; opacity: .95; margin-bottom: 16px; }
.cta a { display: inline-block; background: #fff; color: #b45309; padding: 12px 26px; border-radius: 10px; font-weight: 800; text-decoration: none; }

.related { margin-top: 44px; padding-top: 22px; border-top: 1px solid #e2e8f0; }
.related h3 { margin-top: 0; }
.related ul { list-style: none; padding-left: 0; }

.footer { text-align: center; margin-top: 44px; padding-top: 20px; border-top: 1px solid #e2e8f0; color: #999; font-size: 13px; }
.footer a { color: #999; }

@media (max-width: 600px) {
  h1 { font-size: 25px; }
  .container { padding: 24px 18px 48px; }
}