:root{--ink:#0b1f46;--muted:#5d6f9b;--paper:#eef4ff;--panel:#ffffff;--line:#c6d7ff;--field:#f5f8ff;--accent:#0d6efd;--accent-dark:#084dcf;--warning:#c07a00;--error:#c62828;--shadow:0 22px 54px rgba(9,38,89,0.16)}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:radial-gradient(circle at 14% -6%,rgba(13,110,253,.35),transparent 35rem),radial-gradient(circle at 95% 4%,rgba(34,193,195,.2),transparent 24rem),linear-gradient(135deg,#f8fbff,#eaf2ff 42%,#edf6ff);font-family:Georgia,Times New Roman,serif}button,input,select{font:inherit}button{border:0;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.58}a{color:inherit}.page-shell{min-height:100vh;padding:36px}.checkout-grid{display:grid;grid-template-columns:minmax(280px,420px) minmax(320px,1fr);grid-gap:28px;gap:28px;max-width:1180px;margin:0 auto}.intro{align-self:start;padding:34px;border:1px solid var(--line);background:rgba(255,255,255,.68);box-shadow:var(--shadow)}.eyebrow{margin:0 0 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var(--line);font-size:.75rem;color:var(--muted);font-family:monospace;word-break:break-all}