:root{--bg:#f6f7fb;--surface:#ffffff;--surface-2:#f1f2f8;--border:#e5e7eb;--text:#1f2433;--muted:#6b7280;--primary:#4f46e5;--primary-dark:#4338ca;--primary-soft:#eef2ff;--success:#10b981;--success-soft:#ecfdf5;--warn:#f59e0b;--warn-soft:#fffbeb;--danger:#ef4444;--danger-soft:#fef2f2;--radius:16px;--radius-sm:10px;--shadow:0 1px 2px rgba(16,24,40,0.05),0 8px 24px rgba(16,24,40,0.06);--shadow-sm:0 1px 2px rgba(16,24,40,0.06);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}body{min-height:100dvh}h1,h2,h3{margin:0;line-height:1.2}p{margin:0}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit;font-size:16px}a{color:var(--primary)}.app{max-width:560px;margin:0 auto;min-height:100dvh;display:flex;flex-direction:column;background:var(--bg)}.app-main{flex:1 1;padding:16px 16px 96px;gap:16px}.app-main,.centered{display:flex;flex-direction:column}.centered{justify-content:center;min-height:100dvh;padding:24px;max-width:460px;margin:0 auto;gap:18px}.topbar{position:-webkit-sticky;position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;background:var(--surface);border-bottom:1px solid var(--border)}.topbar h1{font-size:18px}.topbar .sub{font-size:12px;color:var(--muted)}.bottom-nav{position:fixed;bottom:0;left:0;right:0;z-index:20;display:flex;justify-content:space-around;background:var(--surface);border-top:1px solid var(--border);padding:8px 8px calc(8px + env(safe-area-inset-bottom));max-width:560px;margin:0 auto}.bottom-nav button{background:none;border:none;color:var(--muted);font-size:11px;display:flex;flex-direction:column;align-items:center;gap:3px;padding:4px 10px;border-radius:10px}.bottom-nav button .ico{font-size:20px}.bottom-nav 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