.app-header[data-v-c728049d]{background-color:#fff;border-bottom:1px solid #e5e5e5;padding:.75rem 0;position:sticky;top:0;z-index:100}.header-container[data-v-c728049d]{justify-content:space-between;margin:0 auto;max-width:1200px;padding:0 1rem}.header-container[data-v-c728049d],.logo-link[data-v-c728049d]{align-items:center;display:flex}.logo-link[data-v-c728049d]{gap:.75rem;text-decoration:none}.logo-image[data-v-c728049d]{height:40px}.logo-text[data-v-c728049d]{color:#333;font-size:1.75rem;font-weight:700}.main-nav-desktop[data-v-c728049d]{align-items:center;display:none;flex:1;justify-content:flex-end;min-width:0}.main-nav-desktop a[data-v-c728049d]{color:#555;flex-shrink:0;font-weight:500;margin:0 .8rem;text-decoration:none;transition:color .3s;white-space:nowrap}.user-menu[data-v-c728049d]{align-items:center;display:flex;flex-direction:row;flex-shrink:0;gap:1rem;margin-left:1rem}.main-nav-desktop a.router-link-active[data-v-c728049d],.main-nav-desktop a[data-v-c728049d]:hover{color:#007bff}.main-nav-desktop a[href^="/topic/"][data-v-c728049d]{color:#333}.auth-buttons[data-v-c728049d]{align-items:center;display:flex;gap:1rem;margin-left:1rem}.login-button[data-v-c728049d]{border:1px solid #007bff;color:#007bff}.login-button[data-v-c728049d],.register-button[data-v-c728049d]{border-radius:5px;padding:.5rem 1rem}.register-button[data-v-c728049d]{background-color:#007bff;color:#fff}.mobile-nav-toggle[data-v-c728049d]{background:none;border:none;display:flex;flex-direction:column;gap:4px;padding:8px}.hamburger-icon[data-v-c728049d]{background-color:#333;border-radius:2px;height:3px;width:24px}.mobile-nav[data-v-c728049d]{background-color:#fff;border-bottom:1px solid #e5e5e5;box-shadow:0 4px 6px #0000001a;display:flex;flex-direction:column;left:0;padding:1rem;position:absolute;right:0;top:100%}.mobile-nav a[data-v-c728049d]{border-bottom:1px solid #f8f8f8;color:#333;padding:.75rem 1rem;text-decoration:none}@media (min-width:768px){.main-nav-desktop[data-v-c728049d]{display:flex}.mobile-nav-toggle[data-v-c728049d]{display:none}.mobile-nav[data-v-c728049d]{display:none!important}}.app-footer[data-v-2cfecbcf]{background-color:#f8f9fa;border-top:1px solid #e5e5e5;color:#6c757d;margin-top:4rem;padding:2rem 0;text-align:center}.app-footer a[data-v-2cfecbcf]{color:#6c757d;margin:0 .5rem;text-decoration:none}.app-footer a[data-v-2cfecbcf]:hover{text-decoration:underline}