header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    height: 70px;
    background-color: var(--accent-color);
    border-bottom: 1px solid var(--accent-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.menu-btn {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: 8px;
    transition: background-color 0.2s;
}

.menu-btn:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.logo {
    font-size: 20px;
    font-weight: 700;
    color: white;
    letter-spacing: 1px;
}

header .logo {
    color: var(--text-color);
}

.nav-drawer {
    position: fixed;
    top: 0;
    left: -300px;
    width: 300px;
    height: 100vh;
    background-color: var(--card-bg);
    border-right: 1px solid var(--border-color);
    z-index: 200;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    padding: 20px;
}

.nav-drawer.open {
    left: 0;
}

.drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: 8px;
    transition: background-color 0.2s;
}

.close-btn:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.drawer-menu {
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow-y: auto;
}

.drawer-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 15px;
    color: var(--text-color);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: background-color 0.2s, color 0.2s;
}

.drawer-item i {
    font-size: 20px;
    color: var(--text-color-muted);
}

.drawer-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--accent-color-sidemenu);
}

.drawer-item:hover i {
    color: var(--accent-color-sidemenu);
}

.drawer-item.active {
    background-color: var(--vullen-bg);
    color: var(--accent-color-sidemenu);
}

.drawer-item.active i {
    color: var(--accent-color-sidemenu);
}

.drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 150;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s;
}

.drawer-overlay.open {
    opacity: 1;
    visibility: visible;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.fullscreen-btn {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: 8px;
    transition: background-color 0.2s;
}

.fullscreen-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.fullscreen-btn i {
    font-size: 22px;
}

.logout-btn {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 8px;
    transition: background-color 0.2s;
    font-size: 14px;
    font-weight: 500;
}

.logout-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.logout-btn i {
    font-size: 20px;
}

@media (max-width: 480px) {
    header {
        padding: 0 12px;
    }

    .nav-drawer {
        width: 85vw;
        left: -85vw;
    }

    .logout-btn span {
        display: none;
    }
}