:root{color:#121826;--app-bg:#f3f6fb;--surface:#fff;--surface-soft:#f8fafc;--surface-muted:#eef2f7;--border:#d7deea;--border-soft:#e7ecf4;--text:#121826;--muted:#667085;--primary:#2563eb;--primary-dark:#1d4ed8;--primary-soft:#eff6ff;--nav:#0f172a;--nav-muted:#95a3b8;--danger:#b42318;--danger-soft:#fff1f0;--success:#027a48;--success-soft:#ecfdf3;--warning:#b54708;--warning-soft:#fff7ed;--shadow:0 14px 36px #0f172a14;background:#f3f6fb;font-family:Segoe UI,Arial,sans-serif}*{box-sizing:border-box}html{background:var(--app-bg);min-height:100%}body{min-height:100vh;margin:0}button,input,select,textarea{font:inherit}button{border:1px solid var(--primary);background:var(--primary);color:#fff;cursor:pointer;border-radius:7px;min-height:34px;padding:0 10px;font-size:12px;font-weight:700;transition:background-color .12s,border-color .12s,box-shadow 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