:root {
    --header-bg-color: hsl(0, 100%, 100%);
    --header__nav--bg-color: hsl(0, 0%, 100%);
    --header__nav-link--color: hsl(233, 8%, 62%);
    --header__nav-link--color-810px: hsl(225, 4%, 18%);
    --header__invite-link--bg-color: linear-gradient(
        10deg,
        rgba(44, 182, 216, 1) 0%,
        rgba(50, 210, 93, 1) 100%
    );
    --header__invite-link--color: hsl(0, 0%, 100%);
    --header__nav-link--hover-underline-color: linear-gradient(
        10deg,
        rgba(44, 182, 216, 1) 0%,
        rgba(50, 210, 93, 1) 100%
    );
    --header__theme-button--bg-color: hsl(41, 86%, 77%);
    --header__theme-circle--bg-color: hsl(41, 100%, 50%);
}
.header__dark-mode {
    --header-bg-color: hsl(0, 0%, 0%);
    --header__nav--bg-color: hsl(0, 0%, 13%);
    --header__nav-link--color: hsl(233, 5%, 71%);
    --header__nav-link--color-810px: hsl(0, 0%, 100%);
    --header__nav--box-shadow: 0 4px 8px hsla(0, 0%, 100%, 0.4),
        0 8px 20px hsla(0, 0%, 100%, 0.3), 0 0 18px hsla(160, 100%, 50%, 0.12),
        0 0 8px hsla(0, 0%, 2%, 0.1), 0 -2px 6px hsla(0, 0%, 100%, 0.4),
        0 -6px 10px hsla(0, 0%, 100%, 0.3), 0 0 12px hsla(160, 100%, 50%, 0.12),
        0 0 6px hsla(0, 0%, 2%, 0.1);

    --header__theme-button--bg-color: hsl(230, 22%, 44%);
    --header__theme-circle--bg-color: hsl(231, 65%, 17%);
}
.header {
    display: flex;
    justify-content: space-between;
    padding: 20px 70px 20px 150px;
    background-color: var(--header-bg-color);
}
.header__logo {
    display: flex;
    align-items: center;
}
.header__logo-image {
    width: max(160px, 11.111111vw);
}
.header__nav {
    display: flex;
}
.header__nav-list {
    display: flex;
    gap: clamp(35px, 2.6vw, 50px);
}
.header__nav-item {
    display: flex;
    list-style: none;
}
.header__nav-link {
    display: flex;
    align-items: center;
    position: relative;
    font-size: max(0.875rem, 0.972222222vw);
    font-weight: 500;
    color: var(--header__nav-link--color);
    text-decoration: none;
}
.header__nav-link::after,
.header__nav-link::before {
    content: "";
    position: absolute;
    bottom: -20px;
    width: 0;
    height: 4px;
    background-image: var(--header__nav-link--hover-underline-color);
    transition-duration: 0.5s;
}
.header__nav-link::before {
    left: 50%;
}
.header__nav-link::after {
    right: 50%;
}
.header__nav-item:hover .header__nav-link::after,
.header__nav-item:hover .header__nav-link::before {
    width: 50%;
}
.header__right-wrapper {
    display: flex;
    align-items: center;
    gap: 20px;
}
.header__invite-link {
    display: inline-block;
    padding: clamp(15px, 0.95vw, 18px) clamp(35px, 2.0833vw, 40px);
    border-radius: 50px;
    font-size: max(0.875rem, 0.972222222vw);
    font-weight: 700;
    color: var(--header__invite-link--color);
    text-decoration: none;
    background: var(--header__invite-link--bg-color);
}
.header__invite-link:hover {
    transform: scale(1.05);
    opacity: 0.8;
}
.header__theme-button {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    width: clamp(80px, 5.555vw, 100px);
    padding: 4px;
    border: none;
    border-radius: 50px;
    background-color: var(--header__theme-button--bg-color);
    cursor: pointer;
}
.header__theme-button:hover {
    transform: scale(1.05);
}
.header__theme-circle {
    display: block;
    padding: 7px;
    border-radius: 50%;
    background-color: var(--header__theme-circle--bg-color);
    transition: transform 0.5s ease;
}
.header__theme-circle-dark {
    transform: translateX(115%);
}
.header__theme-icon {
    width: clamp(20px, 1.5vw, 30px);
}
.header__menu {
    display: none;
    align-items: center;
}
.header__menu:hover {
    scale: 1.1;
}
.header__menu-button {
    border: none;
    background-color: transparent;
    cursor: pointer;
}
.header__menu-icon {
    width: auto;
    height: 25px;
    aspect-ratio: 3/2;
}
.header__menu-icon line {
    transition: transform 0.4s ease, opacity 0.4s ease;
    transform-origin: center;
}
.header__menu-icon--cross line:nth-child(1) {
    transform: translateX(-12.5%) translateY(4.5px) rotate(45deg);
}

.header__menu-icon--cross line:nth-child(2) {
    opacity: 0;
}

.header__menu-icon--cross line:nth-child(3) {
    transform: translateX(-12.5%) translateY(-4.5px) rotate(-45deg);
}
@media screen and (max-width: 1600px) {
    .header__theme-circle-dark {
        transform: translateX(110%);
    }
}

@media screen and (max-width: 1439px) {
    .header {
        padding: 20px min(4.861111vw, 70px) 20px min(10.416666vw, 150px);
    }
    .header__right-wrapper {
        gap: clamp(10px, 1vw, 20px);
    }
    .header__theme-button {
        width: clamp(70px, 7vw, 80px);
    }
    .header__theme-icon {
        width: clamp(17px, 1.7vw, 21.585px);
    }
    .header__theme-circle-dark {
        transform: translateX(105%);
    }
}

@media screen and (max-width: 1200px) {
    .header {
        padding: 20px min(4.861111vw, 58.3332px) 20px min(8.173vw, 100px);
    }
}

@media screen and (max-width: 1100px) {
    .header__theme-circle-dark {
        transform: translateX(110%);
    }
}

@media screen and (max-width: 1000px) {
    .header {
        padding: 20px min(3vw, 30px) 20px clamp(50px, 6.173vw, 65px);
    }
    .header__logo-image {
        width: min(16vw, 160px);
    }
    .header__nav-link {
        font-size: min(1.4vw, 0.875rem);
    }
    .header__invite-link {
        padding: clamp(12px, 1.2vw, 15px) clamp(25px, 2.5vw, 35px);
        font-size: min(1.4vw, 0.875rem);
    }
    .header__theme-button {
        width: clamp(50px, 6.173vw, 70px);
        padding: clamp(3px, 0.37vw, 4px);
    }
    .header__theme-icon {
        width: clamp(12px, 1.5vw, 17px);
    }
    .header__theme-circle {
        padding: clamp(5px, 0.62vw, 7px);
    }
    .header__theme-circle-dark {
        transform: translateX(100%);
    }
}

@media screen and (max-width: 810px) {
    .header {
        position: relative;
        padding: 20px clamp(20px, 3.7vw, 30px) 20px clamp(20px, 7.143vw, 60px);
    }
    .header__logo-image {
        width: clamp(120px, 42.85vw, 150px);
    }
    .header__nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 50%;
        z-index: 10;
        width: min(90vw, 545px);
        border-radius: 5px;
        padding: clamp(30px, 8vw, 50px) 0;
        transform: translateX(-50%) translateY(10%);
        background-color: var(--header__nav--bg-color);
        box-shadow: var(--header__nav--box-shadow);
    }
    .header__nav-list {
        flex-direction: column;
        gap: clamp(25px, 6.666666vw, 35px);
    }
    .header__nav-item {
        justify-content: center;
    }
    .header__nav-link {
        font-size: 18px;
        color: var(--header__nav-link--color-810px);
    }
    .header__nav-link::after,
    .header__nav-link::before {
        bottom: clamp(-15px, -1.85185vw, -10px);
    }
    .header__right-wrapper {
        gap: clamp(10px, 1.854vw, 15px);
    }
    .header__invite-link {
        display: none;
    }
    .header__menu {
        display: flex;
    }
}

@media screen and (max-width: 400px) {
    .header__theme-button {
        width: clamp(40px, 11.25vw, 50px);
        padding: clamp(2px, 0.714vw, 3px);
    }
    .header__theme-circle {
        padding: clamp(3px, 1.071vw, 5px);
    }
    .header__menu-icon {
        height: clamp(20px, 6.25vw, 25px);
    }
    .header__nav-link {
        font-size: clamp(13px, 4.5vw, 18px);
    }
}