.aptrek-linux-shell{display:flex;flex-direction:column;width:100%;height:100%;min-height:0;background:#0b1220;color:#eaf0ff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
.aptrek-linux-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:calc(12px + env(safe-area-inset-top)) max(18px,env(safe-area-inset-right)) 12px max(18px,env(safe-area-inset-left));border-bottom:1px solid #263750;background:#0b1220;flex-shrink:0;min-height:62px}
.aptrek-linux-wordmark{display:flex;gap:9px;align-items:center;font-size:19px;font-weight:750;letter-spacing:-.5px}.aptrek-linux-divider{color:#5c7694;font-weight:400}.aptrek-linux-title{font-size:13px;letter-spacing:-.2px;color:#9db6ce;font-weight:500}.aptrek-linux-courses{font:600 13px -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#b3eedd;border:1px solid #365949;background:#173729;border-radius:11px;padding:10px 13px;min-height:42px;cursor:pointer;touch-action:manipulation;white-space:nowrap}.aptrek-linux-courses:focus-visible{outline:2px solid #37d399;outline-offset:3px}.aptrek-linux-frame{display:block;flex:1;width:100%;height:100%;min-height:0;border:0;background:#0b1220}
@media(max-width:410px){.aptrek-linux-wordmark{font-size:17px;gap:6px}.aptrek-linux-title{font-size:11px}.aptrek-linux-header{gap:8px;padding-left:12px;padding-right:12px}.aptrek-linux-courses{font-size:12px;padding:9px 11px}.aptrek-linux-wordmark img{width:25px;height:25px}}
.aptrek-linux-actions{display:flex;gap:8px;align-items:center}.aptrek-linux-settings{display:grid;place-items:center;min-width:38px;min-height:42px;padding:7px;border:1px solid #2c425b;border-radius:11px;background:#142336;color:#acc4dc;font-size:20px;cursor:pointer;touch-action:manipulation}.aptrek-linux-settings:focus-visible{outline:2px solid #37d399;outline-offset:3px}