:root {
    --color-dark: #1A1A1D;
    --color-dark-opaque: rgba(26, 26, 29, 0.852);
    --color-light: #E2F1E7;
    --color-primary: #AD49E1;
    --color-secondary: #2b82a8;
    --color-gradient-dark: linear-gradient(to bottom, var(--color-dark) 0%, var(--color-dark-opaque) 10%, transparent);
    --font-body: "Afacad Flux", "Roboto", serif;
    --font-heading: "Lora", 'Verdana', serif;
    
    --padding-section: 4.5rem;
    --padding-sm: 0.7rem;
    --padding-lg: 1.5rem;
    --padding-section-2x: calc(var(--padding-section) * 2);

    --size-normal: 1em;
    --size-md: 1.3em;
    --size-lg: 1.72em;
    --size-xl: 2.4em;
    --size-2xl: 3em;
    --size-sm: .7em;

    --width-sm: 25.5rem;
    --width-md: 62rem;
    --width-lg: 80rem;
    --width-xl: 90rem;
}

@media (max-width: 767.98px) {
    :root {
        --padding-section: 2.25rem;
        --padding-sm: 0.7rem;
        --padding-lg: 1.1rem;
        --padding-section-2x: calc(var(--padding-section) * 1.4);

        --size-normal: 1em;
        --size-md: 1.2em;
        --size-lg: 1.5em;
        --size-xl: 2.1em;
        --size-2xl: 2.6em;
        --size-sm: .7em;
    }
}

*,*::before,*::after{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}
body {
    overflow-x: hidden;
    background-color: var(--color-dark);
    color: var(--color-light);
    font-family: var(--font-body);
}
h1,h2,h3,h4,h5,h6,.heading {
    font-family: var(--font-heading);
}
a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: bold;
}
.button {
    padding: var(--padding-sm) var(--padding-lg);
    background-color: var(--color-dark);
    border: 1px solid var(--color-light);
    color: var(--color-light);
}
.button--primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}
.button--secondary {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
}
.button--section {
    border-color: transparent;
    position: relative;
    background-color: transparent;
    color: var(--color-dark);
    padding: 0.5em 2em;
    transition: color .3s ease-in;
    &::before, &::after {
        content: "";
        z-index: -1;
        position: absolute;
        inset: 0;
        background-color: var(--color-light);
        transform: skewX(-17deg);
        transition: background-color .3s ease-in, transform .3s cubic-bezier(0.68, -0.55, 0.265, 1.55), opacity .3s ease-in;
    }
    &::after {
        inset: 0 90% 0 0;
        background-color: var(--color-primary);
    }
    &:hover {
        color: var(--color-primary);
    }
    &:hover::after {
        transform: skewX(-17deg) translateX(900%);
    }
}

/* header */
.site-header {
    display: flex;
    justify-content: space-between;
    gap: var(--padding-lg);
    align-items: center;
    font-size: var(--size-lg);
    background-image: var(--color-gradient-dark);
    color: var(--color-light);
    position: sticky;
    top: 0;
    left: 0;
    padding: var(--padding-lg);
    z-index: 100;
    animation: scaleUp 1s 1s cubic-bezier(0.86, 0, 0.07, 1) both;
}
.site-header__brand {
    width: 12rem;
    img {
        width: 100%;
        height: 100%;
        object-fit: contain;
        filter: grayscale(1) invert(1);
    }
}
.site-header__menu {
    cursor: pointer;
    display: flex;
    flex-direction: column;
    height: var(--size-lg);
    position: relative;
    width: var(--size-md);
}
.site-header__toggle {
    width: 100%;
    height: 3px;
    background-color: var(--color-light);
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    transition: background-color .3s ease-in;
    &::before, &::after {
        content: "";
        width: 100%;
        height: 100%;
        position: absolute;
        background-color: var(--color-light);
        transition: transform .3s ease-in;
    }
    &::before {
        bottom: calc(100% + 6px);
    }
    &::after {
        top: calc(100% + 6px);
    }
}
.site-header__toggle--open .site-header__toggle {
    background-color: transparent;
    &::before {
        transform-origin: center left;
        transform: rotate(45deg);
    }
    &::after {
        transform-origin: center right;
        transform: rotate(-45deg) translate(15%, -640%);
    }
}
.site-menu {
    position: fixed;
    inset: 0;
    background-color: var(--color-light);
    color: var(--color-secondary);
    font-size: var(--size-2xl);
    font-weight: bold;
    z-index: 99;
    display: flex;
    align-items: center;
    justify-content: space-evenly;
    flex-wrap: wrap;
    transform-origin: center top;
    opacity: 0; /* Start hidden */
    visibility: hidden; /* Initially hidden */
    transition: opacity 1s ease-in, visibility 0s 1s; /* Visibility delayed after opacity */
}

.site-menu.site-menu--open {
    opacity: 1; /* Fully visible */
    visibility: visible; /* Visible immediately */
    animation: siteMenuOpen 1s ease-in both; /* Scale and fade-in */
    transition: opacity 1s ease-in, visibility 0s; /* No delay for visibility */
}

.site-menu.site-menu--closing {
    opacity: 0; /* Fade out */
    visibility: visible; /* Stay visible until opacity transition ends */
    animation: siteMenuClose 1s ease-in forwards; /* Reverse scale animation */
    transition: opacity 1s ease-in, visibility 0s 1s; /* Visibility changes after opacity */
}


.site-menu__navigation {
    flex: 1 0 100%;
    width: 100%;
    align-self: flex-end;
    display: flex;
    align-items: center;
    justify-content: space-evenly;
}
.site-menu__link {
    color: var(--color-secondary);
    font-family: var(--font-heading);
    position: relative;
    transition: color .3s ease-in;
    &::before {
        content: "";
        width: 100%;
        height: .2em;
        background-color: var(--color-primary);
        position: absolute;
        top: calc(100% + 10px);
        transform-origin: center left;
        transform: skew(-17deg) scaleX(0);
        opacity: 1;
        transition: transform .3s ease-in, opacity .3s ease-in;
    }
    &:hover {
        color: var(--color-primary);
        &::before {
            transform: skew(-17deg) scaleX(1);
            opacity: 1;
        }
    }
}
.site-menu__footer {
    align-self: flex-end;
    display: flex;
    justify-content: space-between;
    width: 100%;
    padding: var(--padding-lg);
    font-size: 1rem;
    font-weight: lighter;
    a {
        color: var(--color-dark);
    }
}

/* section based */
.heading {
    font-weight: bold;
    font-size: 2rem;
    line-height: 1.4em;
}
.section {
    min-height: calc(100svh - var(--header-height, 70));
    padding: var(--padding-section);
}
.section__links {
    display: flex;
    align-items: center;
    gap: 1.2em;
    font-size: var(--size-md);
}
.section__link {
    padding: var(--padding-sm) var(--padding-lg);
}
.section__link--button {
    background-color: var(--color-primary);
    color: var(--color-light);
}
.is-in-viewport :is(.section__heading, .section__caption, .section__link) {
    animation: fadeUp .6s 0.2s ease-in both;
}

/* parallax effects */
.parallax {
    width: 100%;
    min-height: 100svh;
    position: relative;
    overflow: hidden;
    display: flex;
    z-index: 1;
}
.parallax::before {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 30%;
    background-image: var(--color-gradient-dark);
    transform: scaleY(-1);
    z-index: 0;
}
.parallax--left-end {
    justify-content: start;
    align-items: flex-end;
}
.parallax__bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    z-index: -1;
}


/* sections */
.hero {
    min-height: calc(100svh - var(--header-height));
    background-color: var(--color-dark);
    display: flex;
    justify-content: flex-start;
    align-items: flex-end;
    padding: var(--padding-section)
}
.hero__content {
    font-size: var(--size-xl);
    & > * {
        transform-origin: bottom left;
        animation: scaleUp 1s 1s ease-in both;
    }
    & > :nth-child(1) {
        animation-delay: 1s
    }
    & > :nth-child(2) {
        animation-delay: 1.8s
    }
    & > :nth-child(3) {
        animation-delay: 2.6s
    }
    & > :nth-child(4) {
        animation-delay: 3.4s
    }
}

.intro {
    display: flex;
    flex-direction: column;
    padding-block: calc(var(--padding-section) + 5rem);
}
.intro .section__content {
    width: var(--width-sm);
    align-self: flex-end;
    display: flex;
    flex-direction: column;
    gap: var(--size-md);
}
.intro .section__heading {
    text-transform: uppercase;
}
.intro__tagline {
    font-size: var(--size-2xl);
    font-weight: normal;
    display: flex;
    flex-direction: column;
    gap: var(--padding-sm);
    padding: var(--padding-section) var(--padding-sm) 0 0;
}
.intro.is-in-viewport {
    .section__content {
        & > * {
            animation: slideLeft 1s ease-in both;
        }
        & > *:nth-child(1) {
            animation-delay: 1s
        }
        & > *:nth-child(2) {
            animation-delay: 1.8s
        }
        & > *:nth-child(3) {
            animation-delay: 2.6s
        }
        & > *:nth-child(4) {
            animation-delay: 3.4s
        }
    }
    .intro__tagline {
        & > * {
            animation: fadeUp 1s ease-in both;
        }
        & > :nth-child(1) {
            animation-delay: 1s
        }
        & > :nth-child(2) {
            animation-delay: 1.8s
        }
        & > :nth-child(3) {
            animation-delay: 2.6s
        }
        & > :nth-child(4) {
            animation-delay: 3.4s
        }
    }
}

.services {
    padding-block: var(--padding-section-2x);
}
.services__content {
    display: grid;
    gap: 3.5rem;
    grid-template-columns: minmax(0, 60%) minmax(0, 40%);
}
.services .section__heading {
    font-size: var(--size-xl);
}
.services .section__caption {
    align-self: flex-end;
    padding-left: 20%;
}
.services.is-in-viewport {
    .section__heading span {
        animation: blink 1s 1.2s cubic-bezier(0.895, 0.03, 0.685, 0.22) both 4;
    }
}

.partners {
    padding-block: var(--padding-section-2x);
}
.partners .section__heading {
    font-size: var(--size-2xl);
}
.partners .section__list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--size-md);
    img {
        max-width: 20vw;
        filter: grayscale(1);
    }
}
.partners.is-in-viewport .section__list {
    & > * {
        animation: scaleUp 1s 1s ease-in both;
    }
    & > :nth-child(1) {
        animation-delay: 1s
    }
    & > :nth-child(2) {
        animation-delay: 1.4s
    }
    & > :nth-child(3) {
        animation-delay: 1.8s
    }
    & > :nth-child(4) {
        animation-delay: 2.2s
    }
    & > :nth-child(5) {
        animation-delay: 2.6s
    }
    & > :nth-child(6) {
        animation-delay: 3s
    }
    & > :nth-child(7) {
        animation-delay: 3.4s
    }
}

.works {
    padding-block: var(--padding-section-2x);
    min-height: unset;
}
.works .section__content {
    display: grid;
    grid-template-columns: minmax(0,60%) minmax(0,40%);
    gap: var(--padding-section);
}
.works .section__heading {
    font-size: var(--size-2xl);
    font-weight: bold;
    & > * {
        animation: fadeUp 1s ease-in both;
    }
    & > :nth-child(1) {
        animation-delay: 1s
    }
    & > :nth-child(2) {
        animation-delay: 1.8s
    }
    & > :nth-child(3) {
        animation-delay: 2.6s
    }
    & > :nth-child(4) {
        animation-delay: 3.4s
    }
}
.works .section__copy {
    display: flex;
    flex-direction: column;
    gap: var(--size-md);
    & > * {
        animation: slideRight 1s 4s ease-in both;
    }
    & > *:nth-child(1) {
        animation-delay: 4s
    }
    & > *:nth-child(2) {
        animation-delay: 4.6s
    }
    & > *:nth-child(3) {
        animation-delay: 5.2s
    }
    & > *:nth-child(4) {
        animation-delay: 5.8s
    }
    & > *:nth-child(5) {
        animation-delay: 6.4s
    }
}

.brand {
    padding-block: var(--padding-lg);
    padding-inline: 0;
    font-size: calc(var(--size-2xl) * 2);
    overflow-x: hidden;
    flex-direction: column;
    min-height: 50svh;
}
.brand__row {
    overflow-x: visible;
    opacity: 0.5;
}
.brand__label {
    display: flex;
    gap: 0;
    word-break: keep-all;
    white-space: nowrap;
    margin-left: -50%;
}

.property {
    display: flex;
}
.property .parallax__content {
    align-self: flex-end;
    padding: var(--padding-section);
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: var(--size-sm);
}
.property__heading {
    font-size: var(--size-2xl);
    font-weight: normal;
    margin-bottom: 0;
    text-shadow: 3px 3px 3px var(--color-dark);
    transform-origin: bottom left;
}
.property__subheading {
    font-family: var(--font-body);
}
.property__link {
    color: var(--color-light);
    font-weight: bold;
    font-size: var(--size-lg);
    position: relative;
    display: flex;
    align-items: center;
    gap: 1em;
    transition: color .3s ease-in;
    &::before {
        content: "";
        width: calc(var(--size-2xl) * 3);
        height: 5px;
        background-color: var(--color-light);
    }
    &:hover {
        color: var(--color-primary);
        text-shadow: 3px 3px 3px var(--color-dark);
    }
}

.site-footer {
    display: grid;
    grid-template-columns: minmax(0, 30%) minmax(0, 70%);
    gap: var(--size-md);
}
.site-footer__info {
    display: flex;
    flex-direction: column;
    gap: var(--size-xl);
    padding: var(--padding-lg);
    padding-right: var(--size-md);
}
.site-footer__brand {
    img {
        width: 80%;
        height: auto;
        object-fit: contain;
        filter: grayscale(1) invert(1);
    }
}
.site-footer__form {
    padding-block: var(--padding-section);
    padding-left: 10%;
    form {
        max-width: 60%;
        margin-right: auto;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: var(--size-md);
    }
    fieldset {
        border: 0;
        &:nth-last-child(2) {
            grid-column: 1/-1;
        }
        input[type="text"], textarea {
            padding: 0.8em 1.4em 0.8em 0;
            background-color: transparent;
            border: 0;
            width: 100%;
            font-size: var(--size-md);
            border-bottom: 1px solid var(--color-light);
            color: var(--color-light);
            &::placeholder {
                color: var(--color-light);
            }
            &:focus {
                outline: solid 1px var(--color-light);
                outline-offset: 3px;
            }
        }
        .button--section {
            font-size: var(--size-md);
            cursor: pointer;
        }
    }
}
.site-footer__credits {
    background-color: var(--color-secondary);
    grid-column: 1/-1;
    padding: var(--padding-sm);
    display: flex;
    justify-content: flex-end;
    gap: 0.2em;
    a {
        color: var(--color-dark);
    }
    .bold {
        font-weight: bold;
    }
}


/* misc */
.text--primary {
    color: var(--color-primary);
}
.text--secondary {
    color: var(--color-secondary);
}



/* animation */
@keyframes siteMenuOpen {
    from {
        opacity: 0;
        transform: scaleY(0);
    }
    to {
        opacity: 1;
        transform: scaleY(1);
    }
}
@keyframes siteMenuClose {
    from {
        opacity: 1;
        transform: scaleY(1);
    }
    to {
        opacity: 0;
        transform: scaleY(0);
    }
}
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(10rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes slideRight {
    from {
        opacity: 0;
        transform: translateX(-10rem);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}
@keyframes slideLeft {
    from {
        opacity: 0;
        transform: translateX(10rem);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}
@keyframes scaleUp {
    from {
        opacity: 0;
        transform: scale(0);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}
@keyframes blink {
    0% {
        opacity: 0;
        transform: skewX(-11deg);
    }
    30% {
        opacity: 1;
        transform: skewX(0deg);
    }
    80% {
        opacity: 0;
        transform: skewX(0deg);
    }
    100% {
        opacity: 1;
        transform: skewX(0deg);
    }
}


@media (max-width: 767.98px) {
    .site-menu__navigation {
        flex-direction: column;
        gap: 0.7em;
    }
    .site-menu__footer {
        flex-direction: column;
        align-items: center;
    }
    .section {
        overflow-x: hidden;
    }
    .intro .section__content {
        width: 100%;
    }
    .property {
        overflow: hidden;
    }
    .property__link::before {
        width: 24vw;
    }
    .services__content {
        grid-template-columns: 1fr;
    }
    .services .section__caption {
        text-align: right;
    }
    .partners .section__list img {
        max-width: 33vw;
    }
    .works .section__content {
        grid-template-columns: 1fr;
    }
    .brand {
        font-size: var(--size-lg);
        min-height: 30svh;
        padding-top: 5svh;
    }
    .site-footer {
        grid-template-columns: 1fr;
    }
    .site-footer__info {
        gap: var(--size-md);
        padding: var(--padding-section);
    }
    .site-footer__form {
        padding-inline: var(--padding-section);
        form {
            width: 100%;
            max-width: 100%;
            grid-template-columns: 1fr;
        }
    }
    .site-footer__credits {
        justify-content: center;
    }
}