@import "https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700;800&display=swap";
:root{--blue:#2563eb;--navy:#142d55;--ink:#16263e;--muted:#738198;--line:#e5ebf3;--surface:#f6f8fc;--green:#168369;--font:"Be Vietnam Pro",system-ui,-apple-system,sans-serif}*{box-sizing:border-box}body{background:var(--surface);color:var(--ink);font-family:var(--font);margin:0;font-size:14px;line-height:1.6}button,input,select{font:inherit}a{color:var(--blue);text-decoration:none}button,a,input,select{outline-offset:4px}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}h1,h2,h3,p{margin:0}h1{letter-spacing:-1px;font-size:28px;line-height:1.35}h2{letter-spacing:-.4px;font-size:19px}h3{font-size:15px}code,pre{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}code{font-size:.91em}pre{overflow-x:auto}label{flex-direction:column;gap:7px;margin:16px 0;font-size:12px;font-weight:600;display:flex}input,select{color:var(--ink);background:#fff;border:1px solid #d9e2ef;border-radius:9px;width:100%;padding:12px 13px}input:focus,select:focus{border-color:var(--blue)}input[type=checkbox]{width:auto;accent-color:var(--blue)}.app-shell{min-height:100vh;display:flex}.sidebar{border-right:1px solid var(--line);background:#fff;flex-direction:column;flex-shrink:0;width:238px;padding:34px 20px;display:flex;position:fixed;inset:0 auto 0 0}.brand{letter-spacing:-1px;color:var(--navy);align-items:center;gap:12px;font-size:25px;font-weight:800;display:flex}.brand-icon{background:var(--blue);color:#fff;border-radius:12px;place-items:center;width:39px;height:43px;font-size:24px;font-weight:800;display:grid;box-shadow:0 4px 9px #2563eb20}.brand-caption{letter-spacing:2.4px;color:var(--muted);font-size:8px;line-height:1.3;display:block}.nav-label{letter-spacing:1.5px;color:#95a0b1;margin:49px 12px 16px;font-size:9px;font-weight:700}.nav-item{color:#63718a;text-align:left;background:0 0;border:0;border-radius:9px;align-items:center;gap:14px;width:100%;margin:5px 0;padding:13px 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p{margin:20px 0}@media (min-width:1600px){.page-content{padding-top:50px}.continue-card{padding:40px}.terminal-art{width:320px}.stats-grid{gap:24px}.stat-card{padding:28px}}@media (max-width:1150px){.sidebar{width:200px;padding-left:15px;padding-right:15px}.main-wrap{width:calc(100% - 200px);margin-left:200px}.page-content{padding:30px 25px}.topbar{padding:0 25px}.terminal-art{width:230px;font-size:10px}.continue-card{padding:25px}.lesson-layout{grid-template-columns:minmax(0,1fr) 300px;gap:16px}.server-layout{grid-template-columns:1fr}.auth-story{padding:35px}.auth-story h1{font-size:28px}.auth-form{padding:35px}}@media (max-width:850px){.sidebar{border-right:0;border-bottom:1px solid var(--line);width:100%;padding:17px 20px;position:static}.app-shell{display:block}.sidebar 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