:root{--bg: #111418;--surface: #1a1f26;--surface-2: #222932;--border: #2a323c;--text: #f4f6f8;--muted: #98a2b0;--accent: #569cd6;--accent-ink: #0b0e12;--accent-quiet: rgba(86, 156, 214, .16);--error: #f0777f;--warn: #e0b155;--ok: #6fcf97;--shadow: 0 1px 2px rgba(0, 0, 0, .4);--kind-hsa-medical: #5fd0c0;--kind-capital-improvement: #7ea6f0;--kind-repair: #e0b155;--kind-consumable: #b294d8;color-scheme:dark}[data-theme=light]{--bg: #f4f6f9;--surface: #ffffff;--surface-2: #f7f9fb;--border: #d9e0e8;--text: #16202b;--muted: #5c6b7a;--accent: #1d6fb8;--accent-ink: #ffffff;--accent-quiet: rgba(29, 111, 184, .1);--error: #c2323c;--warn: #8a6100;--ok: #1f7a48;--shadow: 0 1px 2px rgba(16, 32, 48, .09);--kind-hsa-medical: #0f7a6e;--kind-capital-improvement: #1d5fb8;--kind-repair: #8a6100;--kind-consumable: #6b46a8;color-scheme:light}:root{--tabbar-h: 56px;--r-xs: 6px;--r-sm: 8px;--r-md: 12px;--r-lg: 16px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}@media (prefers-reduced-motion: no-preference){body,.card,.placeholder,.notice,fieldset,input,select,textarea,.tabbar,.tabbar a,button{transition:background-color .16s ease,border-color .16s ease,color .16s ease}}.shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;padding-top:calc(24px + env(safe-area-inset-top));padding-bottom:calc(24px + env(safe-area-inset-bottom))}.card{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:28px 24px;text-align:center;box-shadow:var(--shadow)}h1{margin:0 0 8px;font-size:1.4rem;letter-spacing:-.01em}.brand-mark{display:flex;align-items:center;justify-content:center;width:54px;height:54px;margin:0 auto 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16px;font-size:.9rem;line-height:1.45}.notice.is-warn{border-left-color:var(--warn)}.notice.is-error{border-left-color:var(--error);color:var(--error)}.segmented{display:flex;gap:4px;padding:4px;background:var(--bg);border:1px solid var(--border);border-radius:var(--r-md)}.segmented button{flex:1;width:auto;padding:9px 10px;min-height:40px;border:1px solid transparent;border-radius:var(--r-sm);background:transparent;color:var(--muted);font-size:.9rem;font-weight:500}.segmented button[aria-pressed=true]{background:var(--accent-quiet);border-color:var(--accent);color:var(--accent);font-weight:600}fieldset{border:1px solid var(--border);border-radius:var(--r-md);background:var(--surface);padding:16px;margin:0 0 16px;box-shadow:var(--shadow)}legend{padding:0 6px;color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.06em}label{display:block;margin:14px 0 6px;font-size:.9rem}label:first-of-type{margin-top:0}.field-label{margin:14px 0 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