.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}
.main-nav::before {
	content: "";
	position: absolute;
	inset: 0;
	z-index: -1;
	pointer-events: none;
	-webkit-backdrop-filter: blur(25px);
	backdrop-filter: blur(25px);
	-webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.75) 35%, rgba(0, 0, 0, 0) 100%);
	mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.75) 35%, rgba(0, 0, 0, 0) 100%);
	-webkit-mask-size: 100% 100%;
	mask-size: 100% 100%;
	-webkit-mask-repeat: no-repeat;
	mask-repeat: no-repeat;
}
.main-nav .nav-content {
    width: 1800px;
    max-width: calc(100% - 40px);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 20px;
}
.main-nav .nav-content .logo,
.main-nav .nav-content .contact {
    width: 150px;
    height: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.main-nav .nav-content .logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}
.main-nav .nav-content ul.nav-links {
    list-style: none;
    display: flex;
    gap: 25px;
    margin: 0;
    padding: 0;
}
.main-nav .nav-content ul.nav-links li a {
    display: block;
    color: var(--text-color);
    font-weight: 500;
    padding: 3px 6px;
}
.main-nav .nav-content ul.nav-links li a:hover {
    -webkit-transform: translateY(-3px);
    -moz-transform: translateY(-3px);
    -ms-transform: translateY(-3px);
    -o-transform: translateY(-3px);
    transform: translateY(-3px);
}
.main-nav .nav-content .contact a {
    display: block;
    background-color: var(--text-color);
    border: 2px solid var(--text-color);
    color: var(--background-color);
    padding: 10px 20px;
    font-weight: 500;
    -webkit-border-radius: var(--br-def);
    -moz-border-radius: var(--br-def);
    -ms-border-radius: var(--br-def);
    -o-border-radius: var(--br-def);
    border-radius: var(--br-def);
}
.main-nav .nav-content .contact a:hover {
    background-color: transparent;
    color: var(--text-color);
    border-color: var(--text-color);
}
.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}
.burger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}
.main-nav:has(.nav-toggle:checked) .burger span:nth-child(1) {
    -webkit-transform: rotate(45deg) translate(6px, 5px);
    -moz-transform: rotate(45deg) translate(6px, 5px);
    -ms-transform: rotate(45deg) translate(6px, 5px);
    -o-transform: rotate(45deg) translate(6px, 5px);
    transform: rotate(45deg) translate(6px, 5px);
}
.main-nav:has(.nav-toggle:checked) .burger span:nth-child(2) {
    opacity: 0;
}
.main-nav:has(.nav-toggle:checked) .burger span:nth-child(3) {
    -webkit-transform: rotate(-45deg) translate(6px, -6px);
    -moz-transform: rotate(-45deg) translate(6px, -6px);
    -ms-transform: rotate(-45deg) translate(6px, -6px);
    -o-transform: rotate(-45deg) translate(6px, -6px);
    transform: rotate(-45deg) translate(6px, -6px);
}
.nav-toggle {
    display: none;
}
.main-nav .off-canvas {
    display: none;
    position: fixed;
    align-items: center;
    justify-content: center;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: -1;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    padding: var(--nav-height) 20px;
}
.main-nav:has(.nav-toggle:checked) .off-canvas {
    opacity: 1;
    pointer-events: auto;
    overflow-y: auto;
}
.main-nav .off-canvas ul.off-canvas-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin: 0;
    padding: 0;
}
.main-nav .off-canvas ul.off-canvas-links li a {
    display: block;
    color: var(--text-color);
    font-size: clamp(1.2rem, 4vw, 1.5rem);
    font-weight: 500;
    padding: 10px 20px;
}
@media (max-width: 975px) {
    .burger {
        display: flex;
    }
    .main-nav .nav-content .contact,
    .main-nav .nav-content ul.nav-links {
        display: none;
    }
    .main-nav .off-canvas {
        display: flex;
    }
}