.main-header{position:fixed;top:0;left:0;width:100%;display:grid;grid-template-columns:auto 1fr auto;align-items:center;padding:0 15px;z-index:1000;background-color:rgba(0,0,0,.9);height:50px;grid-gap:.5rem;gap:.5rem;box-shadow:0 0 15px rgba(0,0,0,.5);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid rgba(0,255,140,.2);box-sizing:border-box;overflow:visible}.logo{grid-column:1;flex:0 0 auto;display:flex;align-items:center}.company-logo{height:24px;max-width:150px;object-fit:contain}.navigation{display:none}.navigation.active{display:flex!important;position:fixed;top:50px;left:0;width:100%;flex-direction:column;background-color:rgba(0,0,0,.95);z-index:999;border-top:1px solid rgba(0,255,140,.2)}.nav-link{display:block;padding:15px;text-align:center;border-bottom:1px solid hsla(0,0%,100%,.1);color:hsla(0,0%,100%,.9);text-decoration:none}.nav-link:hover{background-color:rgba(0,255,140,.1);color:#00ff8c}.nav-toggle{grid-column:2;justify-self:end;display:block;background:none;border:none;color:hsla(0,0%,100%,.9);font-size:1.5rem;cursor:pointer;padding:.3rem .7rem}.header-right-container{grid-column:3;display:flex;align-items:baseline;justify-content:flex-end;gap:1rem}.header-icon{color:#00ff8c;font-size:1.4rem;transition:all .3s ease;text-shadow:0 0 3px rgba(0,255,140,.7);display:flex;align-items:center;text-decoration:none!important}.header-icon:hover{color:#fff;transform:scale(1.1)}.auth-section{display:flex;align-items:baseline;gap:.5rem}.user-name{font-size:.9rem}.auth-btn,.user-name{color:hsla(0,0%,100%,.9);white-space:nowrap}.auth-btn{background:transparent;border:1px solid rgba(0,255,140,.2);padding:4px 8px;font-size:.8rem;cursor:pointer;border-radius:3px;display:flex;align-items:center;gap:4px;transition:all .3s ease}.auth-btn:hover{background-color:rgba(0,255,140,.1);color:#00ff8c;border-color:#00ff8c}.auth-btn.login-btn{border-color:rgba(0,255,140,.4);color:hsla(0,0%,100%,.85)}.auth-btn.login-btn:hover{background-color:rgba(0,255,140,.1);color:#00ff8c;border-color:#00ff8c}.auth-btn i{font-size:.7rem}.language-selector{display:flex;gap:8px;align-items:baseline}.language-btn{background:transparent;border:1px solid rgba(0,255,140,.2);color:hsla(0,0%,100%,.9);padding:4px 6px;font-size:.8rem;cursor:pointer;border-radius:3px;transition:all .3s ease}.language-btn.active{background-color:rgba(0,255,140,.2);color:#00ff8c;border-color:#00ff8c}.language-btn:hover{background-color:rgba(0,255,140,.1);color:#00ff8c;border-color:#00ff8c}.auth-btn.logout-btn{border-color:rgba(255,80,80,.5);color:rgba(255,80,80,.9)}.auth-btn.logout-btn:hover{background-color:rgba(255,80,80,.1);color:#ff5050;border-color:#ff5050}.menu-overlay{position:fixed;top:50px;left:0;width:100%;height:calc(100% - 50px);background:rgba(0,0,0,.7);z-index:1;backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);display:none}.menu-overlay.active{display:block}@media (min-width:769px){.main-header{height:60px;padding:0 30px;background-color:rgba(0,0,0,.7);gap:1rem}.company-logo{height:35px}.navigation{display:flex!important;position:static;flex-direction:row;background:none;border:none;justify-content:center;gap:20px;grid-column:2}.nav-toggle{display:none}.nav-link{padding:6px 12px;border-radius:4px;transition:all .3s ease;border:1px solid transparent;border-bottom:none}.nav-link:hover{color:#00ff8c;border-color:rgba(0,255,140,.2);background-color:rgba(0,255,140,.05);box-shadow:0 0 10px rgba(0,255,140,.3);transform:translateY(-2px)}.auth-btn,.user-name{font-size:.9rem}.auth-btn{padding:6px 12px;gap:6px}.auth-btn i{font-size:.8rem}.language-selector{gap:10px}.language-btn{padding:6px 10px;font-size:.9rem}}@media (max-width:375px){header{padding:0 8px;gap:.3rem}.company-logo{height:20px;max-width:100px}.nav-toggle{font-size:1.1rem;padding:.2rem .4rem}.auth-btn{padding:3px 6px;font-size:.7rem;gap:3px}.auth-btn i{font-size:.6rem}.language-btn{padding:3px 5px;font-size:.7rem}}.main-header.theme-dark{background-color:#1a1a2e;border-bottom:1px solid rgba(0,255,140,.3)}.main-header.theme-dark .nav-link{color:#e0e0e0}header.theme-dark .nav-link:hover{color:#00ff8c}.main-header.theme-dark .user-greeting,.main-header.theme-dark .user-name{color:#e0e0e0}.main-header.theme-dark .header-icon{color:#e0e0e0;text-shadow:none}header.theme-dark .header-icon:hover{color:#00ff8c}.main-header.theme-dark .language-btn{color:#e0e0e0;border-color:hsla(0,0%,100%,.3)}.main-header.theme-dark .language-btn.active,.main-header.theme-dark .language-btn:hover{color:#1a1a2e;background-color:#00ff8c;border-color:#00ff8c}.main-header.theme-dark .auth-btn.logout-btn{border-color:rgba(255,80,80,.5);color:rgba(255,80,80,.9)}.main-header.theme-dark .auth-btn.logout-btn:hover{background-color:rgba(255,80,80,.1);color:#ff5050;border-color:#ff5050}