:root{--bg:#f5f5f7;--surface:#fff;--text:#1d1d1f;--text-secondary:#6e6e73;--border:#d2d2d7;--border-soft:#e8e8ed;--accent:#0071e3;--accent-hover:#0077ed;--accent-soft:#eef5fd;--success:#1d8d3f;--danger:#d70015;--radius-card:20px;--radius-field:12px;--space-1:8px;--space-2:12px;--space-3:16px;--space-4:24px;--space-5:32px;--grad-1:#dbe9ff;--grad-2:#f2e6ff;--grad-3:#d7efff;--glow-a:#0071e329;--glow-b:#a855f71f;--glow-c:#00b7ff1f;--shadow-elev:0 2px 4px #0000000d, 0 14px 38px #00000014;--glass-bg:#ffffff9e;--glass-border:#ffffffbf}*{box-sizing:border-box}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{color:var(--text);background:linear-gradient(#f7f9ff 0%,#eef3fd 55%,#e8f0fc 100%);margin:0;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5}:focus-visible{outline-offset:2px;outline:3px solid #0071e380}.page{z-index:1;max-width:720px;margin:0 auto;padding:24px 20px 80px;position:relative}.site-header{text-align:center;margin-bottom:40px}.eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin:0 0 12px;font-size:14px;font-weight:600}.site-header h1{letter-spacing:-.025em;margin:0 0 14px;font-size:44px;font-weight:700;line-height:1.1}.tagline{color:var(--text-secondary);margin:0;font-size:19px}.calculator{border:1px solid var(--border-soft);border-radius:var(--radius-card);padding:var(--space-5) var(--space-4);background:linear-gradient(165deg,#fbfdff,#f2f6fd);box-shadow:0 1px 2px #0000000a,0 8px 24px #0000000f}.progress{margin:0 0 var(--space-5);padding:0;list-style:none;display:flex}.progress-item{flex-direction:column;flex:1;align-items:center;gap:8px;display:flex;position:relative}.progress-line{transform-origin:0;background:var(--border-soft);z-index:0;border-radius:1px;width:calc(100% - 48px);height:2px;position:absolute;top:16px;left:calc(50% + 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