:root{--bg:#f4f6fb;--panel:#fff;--text:#172033;--muted:#788397;--border:#e4e9f2;--primary:#5d67ed;--primary2:#7a60e8;--green:#17a673;--orange:#ef9c28;--red:#e85d68;--blue:#3186e6;--sidebar:#121827;--shadow:0 14px 34px rgba(25,35,58,.07)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Tahoma,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:14px}a{text-decoration:none;color:inherit}button,input,textarea,select{font:inherit}.app{min-height:100vh}.sidebar{position:fixed;right:0;top:0;bottom:0;width:255px;background:var(--sidebar);padding:20px 14px;color:#fff;overflow:auto;z-index:30}.brand{display:flex;align-items:center;gap:11px;padding:4px 8px 20px;border-bottom:1px solid #ffffff12;margin-bottom:16px}.brand-mark,.login-logo{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),var(--primary2));font-weight:800;font-size:20px}.brand b{font-size:17px}.brand 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