:root{--text:#5a6377;--text-h:#0a0a0f;--bg:#f7f8fa;--surface:#fff;--border:#e2e5ee;--accent:#366483;--accent-hover:#2a4f68;--accent-light:#36648326;--accent-glow:#36648333;--accent-ring:#36648326;--danger:#c53030;--success:#0a7146;--success-bg:#e6f7ee;--warning:#b45309;--radius:10px;--radius-sm:8px;--shadow:0 1px 3px #0000000f, 0 1px 2px #0000000a;--shadow-md:0 4px 14px #0000000d, 0 2px 6px #00000008;--shadow-lg:0 8px 28px #00000012, 0 4px 10px #0000000a;--transition:.16s ease;letter-spacing:.01em;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font-synthesis:none;text-rendering:optimizelegibility;font:15px/1.6 Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{overflow-y:auto}#root{min-height:100vh}.app{flex-direction:column;min-height:100vh;display:flex}.app-header{-webkit-backdrop-filter:blur(12px);border-bottom:1px solid 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14px;font-family:inherit;font-size:14px}.q-select-wrap{position:relative}.q-select-wrap:after{content:"▾";color:var(--text);pointer-events:none;font-size:12px;position:absolute;top:50%;right:14px;transform:translateY(-50%)}.q-select-wrap select:hover{border-color:var(--accent)}.q-select-wrap select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-ring);background:var(--surface)}.q-select-wrap select.filled{background:#fafdfb;border-color:#86d4a8}.q-hint{border-radius:var(--radius-sm);color:var(--warning);background:#fffbeb;border:1px solid #fde68a;margin-top:10px;padding:10px 14px;font-size:13px;font-style:italic;line-height:1.5}.calc-btn{border-radius:var(--radius);cursor:pointer;color:#9ca3af;width:100%;transition:all var(--transition);opacity:.6;pointer-events:none;background:#d1d5db;border:none;margin-top:24px;padding:16px 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