:root{--color-bg:#f5f6f8;--color-card:#ffffff;--color-text:#0a0a0a;--color-text-muted:#6b7280;--color-border:#e5e7eb;--color-blue:#1d4ed8;--color-blue-hover:#1e40af;--color-blue-bg:#eff6ff;--color-danger:#dc2626;--color-success:#16a34a;--color-warning:#a16207;--color-radius:14px}*{box-sizing:border-box}body,html{padding:0;margin:0}body{background-color:var(--color-bg);color:var(--color-text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Inter,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;line-height:1.5}a{color:var(--color-blue);text-decoration:none}a:hover{text-decoration:underline}.page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.page-wide{min-height:100vh;padding:0 24px 48px}.card{padding:32px;max-width:420px}.card,.card-wide{background-color:var(--color-card);border:1px solid var(--color-border);border-radius:12px;width:100%;box-shadow:0 1px 3px rgba(0,0,0,.04)}.card-wide{padding:24px;max-width:960px;margin:0 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