.stripe-study{--sv-bg:#f8f9fc;--sv-surface:#fff;--sv-text:#252c44;--sv-muted:#72798d;--sv-line:#e9ebf2;--sv-purple:#6550cf;--sv-soft:#efecfb;background:var(--sv-bg);color:var(--sv-text);min-height:100vh;font-size:16px;line-height:1.6}:root[data-theme=dark] .stripe-study{--sv-bg:#171a25;--sv-surface:#202433;--sv-text:#e9ebf5;--sv-muted:#a6adc3;--sv-line:#363b50;--sv-purple:#b5a6ff;--sv-soft:#302b48}.stripe-study button,.stripe-study input,.stripe-study select{color:inherit}.stripe-study button:focus-visible,.stripe-study a:focus-visible,.stripe-study select:focus-visible,.stripe-study input:focus-visible{outline:3px solid var(--sv-purple);outline-offset:3px}.sv-header{border-bottom:1px solid var(--sv-line);background:var(--sv-surface);align-items:center;gap:32px;height:68px;padding:0 max(32px,50% - 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