*{box-sizing:border-box;margin:0;padding:0}:root{--bg:#EEF3FF;--card:#fff;--ink:#101828;--muted:#667085;--primary:#3B82F6;--primary-contrast:#fff;--border:#E5E7EB;--shadow:0 10px 25px -12px rgba(16,24,40,.15);--radius:14px;--radius-sm:10px;--space:clamp(16px,2.5vw,24px)}html,body{height:100%;font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans";color:var(--ink);background:var(--bg);line-height:1.55}.email-calculator{max-width:1040px;margin:0 auto;padding:calc(var(--space)*1.5) var(--space)}.calculator-header{text-align:center;display:flex;flex-direction:column;align-items:center;margin-bottom:calc(var(--space) * 1.25)}.calculator-icon{width:56px;height:56px;margin:0 auto 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