@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,100..1000;1,9..40,100..1000&display=swap');
:root {
    --primary: #413BFF;
    --textOnWhite: #424242;
    --textOnBlack: #D0D0D0;
}

html {
    overflow-x: hidden;
    width: 100%;
}

body {
    background: white;
    font-family: "DM Sans", sans-serif;
    letter-spacing: -3%;
    overflow-x: hidden;
    width: 100%;
    margin: 0;
    transition: 0.2s;
}

#page-transition-overlay {
    position: fixed;
    z-index: 14;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: white;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

#page-transition-overlay.is-active {
    opacity: 1;
    pointer-events: auto;
}

#page-transition-overlay.is-instant {
    transition: none;
}

#mouse-cursor {
    position: fixed;
    z-index: 1000;
    width: 0;
    height: 0;
    pointer-events: none;
    visibility: hidden;
}

.mouse-cursor-square,
.mouse-cursor-triangle {
    position: absolute;
    top: 50%;
    left: 50%;
    box-sizing: border-box;
    transform: translate(-50%, -50%);
}

.mouse-cursor-square {
    width: 24px;
    height: 24px;
    border: 1px solid black;
    border-radius: 100px;
    background: transparent;
    transition: width 0.2s ease, height 0.2s ease, border-radius 0.2s ease;
}

.mouse-cursor-square.is-over-black {
    border-color: white;
}

.mouse-cursor-square.is-over-white {
    border-color: white;
}

.mouse-cursor-square.is-hovering {
    width: 56px;
    height: 56px;
    border-radius: 0;
}

.mouse-cursor-square.is-page-transition {
    transition: width 0.5s ease, height 0.5s ease, border-radius 0.5s ease, background-color 0.18s ease, border-color 0.18s ease;
}

.mouse-cursor-square.is-page-transition.is-cover-bg {
    background: white;
    border-color: black;
}

.mouse-cursor-square.is-page-transition.is-cover-size {
    width: 300vmax;
    height: 300vmax;
    border-radius: 0;
}

.mouse-cursor-square.is-page-transition.is-instant {
    transition: none !important;
}

.mouse-cursor-square-clockwise {
    animation: mouse-cursor-clockwise 6s linear infinite;
}

.mouse-cursor-triangle {
    width: 24px;
    height: 24px;
    overflow: visible;
    transition: opacity 0.18s ease;
}

#mouse-cursor:has(.is-cover-bg) .mouse-cursor-triangle {
    opacity: 0;
}

.mouse-cursor-triangle-counterclockwise {
    animation: mouse-cursor-counterclockwise 12s linear infinite;
}

@keyframes mouse-cursor-clockwise {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

@keyframes mouse-cursor-counterclockwise {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    to {
        transform: translate(-50%, -50%) rotate(-360deg);
    }
}

header {
    position: fixed;
    z-index: 102;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    box-sizing: border-box;
    padding-left: 24px;
    padding-right: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    transition: top 0.25s ease, left 0.25s ease, right 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
}

#scroll-progress {
    position: absolute;
    top: calc(100% + 0.5px);
    right: -0.5px;
    left: -0.5px;
    width: calc(100% + 3px);
    height: 4px;
    background-color: var(--primary);
    transition: width 0.1s linear;
}

body header.is-scrolled {
    z-index: 102;
    top: 24px;
    left: 12px;
    right: 12px;
    width: auto;
    border: 1px solid black;
    background: white;
    padding-left: 24px;
    padding-right: 24px;
}

header.is-scrolled ~ #menu-popup {
    top: 128px;
}
.text {
    font-size: 14px;
    letter-spacing: -3%;
    line-height: 200%;
}

#header-text {
    color: black;
}

.header-home {
    position: relative;
    cursor: pointer;
    padding: 4px 12px;
    text-decoration: none;
    transform: translateX(-12px);
}

#menu-button {
    cursor: pointer;
    border: 0;
    background: transparent;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: end;
    padding: 16px;
    padding-right: 0;
}
#menu-button-line-1, #menu-button-line-2 {
    width: 32px;
    height: 2px;
    border-radius: 25px;
    background-color: black;
    margin: 4px 0;
}
#menu-button-line-2 {
    width: 20px;
}

#menu-popup {
    position: fixed;
    z-index: 101;
    top: 80px;
    right: 24px;
    box-sizing: border-box;
    width: fit-content;
    height: fit-content;
    padding: 32px;
    border: 1px solid black;
    border-top-left-radius: 24px;
    background: white;
    transform: translateX(calc(100% + 24px));
    opacity: 1;
    visibility: hidden;
    transition: top 0.25s ease, transform 0.35s ease, visibility 0s linear 0.35s;
}

#menu-popup.is-open {
    transform: translateX(0);
    visibility: visible;
    transition-delay: 0s;
}

#menu-navigation,
#menu-project-list {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    width: max-content;
}

#menu-navigation {
    gap: 8px;
    margin-left: auto;
}

.menu-link,
.menu-project,
.main-link,
#menu-projects-title {
    color: black;
    font-size: 20px;
    letter-spacing: -3%;
    line-height: 1;
    text-decoration: none;
}

.main-link,
.menu-link,
.menu-project {
    position: relative;
    background: white;
    padding: 8px 16px;
    isolation: isolate;
}

.main-link:hover,
.main-link:focus-visible,
.header-home:hover,
.header-home:focus-visible,
.menu-link:hover,
.menu-link:focus-visible,
.menu-project:hover,
.menu-project:focus-visible {
    z-index: 2;
}

.main-link {
    font-size: 14px;
}

.main-link::before,
.header-home::before,
.menu-link::before,
.menu-project::before {
    display: none;
}

.link-trace {
    position: absolute;
    z-index: 0;
    inset: 0;
    overflow: visible;
    pointer-events: none;
}

.link-trace-path {
    fill: none;
    stroke: var(--primary);
    stroke-width: 2;
    stroke-dasharray: 1;
    stroke-dashoffset: 1;
    stroke-linecap: butt;
}

.main-link::after,
.header-home::after,
.menu-link::after,
.menu-project::after {
    display: none;
}

.link-arrow {
    position: absolute;
    z-index: 1;
    width: 16px;
    height: 16px;
    top: -15px;
    overflow: visible;
    opacity: 0;
    pointer-events: none;
    transform: translateY(100%);
}

.link-arrow-box {
    fill: var(--primary);
}

.link-arrow-image {
    width: 16px;
    height: 16px;
}

.link-is-hovered .link-trace-path {
    animation: menu-link-trace 0.4s linear forwards;
}

.link-is-hovered .link-arrow {
    animation: menu-link-arrow 0.2s ease 0.4s forwards;
}

.link-is-leaving .link-trace-path {
    animation: menu-link-trace-reverse 0.4s linear forwards;
}

.link-is-leaving .link-arrow {
    animation: menu-link-arrow-reverse 0.2s ease forwards;
}

@keyframes menu-link-trace {
    0% {
        stroke-dashoffset: 1;
    }
    100% {
        stroke-dashoffset: 0;
    }
}

@keyframes menu-link-arrow {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes menu-link-trace-reverse {
    from {
        stroke-dashoffset: 0;
    }
    to {
        stroke-dashoffset: 1;
    }
}

@keyframes menu-link-arrow-reverse {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(100%);
    }
}

#menu-projects {
    margin-top: 120px;
}

#menu-projects-title {
    margin: 0;
}

#menu-project-list {
    gap: 8px;
    margin-top: 32px;
}

.menu-project {
    display: flex;
    align-items: baseline;
    gap: 16px;
    white-space: nowrap;
}

.menu-project span {
    color: var(--primary);
}

#menu-button-line-1,
#menu-button-line-2 {
    transition: transform 0.35s ease, width 0.35s ease, margin 0.35s ease;
    transform-origin: center;
}

#menu-button.is-open #menu-button-line-1 {
    width: 32px;
    margin: 0;
    transform: translateY(1px) rotate(45deg);
}

#menu-button.is-open #menu-button-line-2 {
    width: 32px;
    margin: 0;
    transform: translateY(-1px) rotate(-45deg);
}

#about-popup {
    position: fixed;
    contain: paint;
    z-index: 12;
    top: var(--about-top, calc(50% + 24px));
    left: calc(var(--about-center, 50%) - 20px);
    width: calc(var(--about-width, min(860px, calc(100vw - 48px))) + 40px);
    max-height: calc(100vh - 96px);
    display: flex;
    align-items: flex-start;
    gap: 8px;
    visibility: hidden;
    opacity: 1;
    transform: translate(-50%, calc(-50% + 100vh));
    transition: transform 0.5s cubic-bezier(0.64, 0, 0.78, 0), visibility 0s linear 0.5s;
}

#about-popup.is-open {
    visibility: visible;
    opacity: 1;
    transform: translate(-50%, -50%);
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1), visibility 0s linear 0s;
}

#about-panel {
    box-sizing: border-box;
    order: 1;
    flex: 0 0 var(--about-width, min(860px, calc(100vw - 48px)));
    width: var(--about-width, min(860px, calc(100vw - 48px)));
    height: min(calc(100vh - 96px), 633.6px);
    max-height: inherit;
    overflow: hidden;
    padding: 48px 24px;
    border: 1px solid black;
    border-radius: 24px 0 0 0;
    background: var(--primary);
    color: white;
    display: flex;
    flex-direction: column;
}

#about-popup-title {
    margin: 0 0 32px;
    font-size: 32px;
    font-weight: 400;
    letter-spacing: -3%;
    line-height: 1;
}

#about-content {
    display: flex;
    flex: 1;
    min-height: 0;
    gap: 40px;
    align-items: flex-start;
}

#about-image {
    box-sizing: border-box;
    display: block;
    width: auto;
    height: 100%;
    max-width: 50%;
    border: 1px solid black;
    border-radius: 0 24px 0 0;
    object-fit: cover;
}

#about-copy {
    flex: 1;
    padding-top: 4px;
}

#about-copy p {
    margin: 0 0 32px;
    font-size: 14px;
    letter-spacing: -3%;
    line-height: 200%;
}

#about-copy p:last-child {
    margin-bottom: 0;
}

#about-close {
    position: relative;
    order: 2;
    flex: 0 0 32px;
    margin-top: 12px;
    width: 32px;
    height: 16px;
    padding: 0;
    border: 0;
    background: transparent;
    color: black;
    cursor: pointer;
}

.about-close-line {
    position: absolute;
    top: 7px;
    left: 0;
    width: 32px;
    height: 2px;
    border-radius: 25px;
    background-color: black;
    transform-origin: center;
    transition: background-color 0.1s ease;
}

#about-close.is-over-black .about-close-line,
#kbbo-close.is-over-black .about-close-line {
    background-color: white;
}

.about-close-line-1 {
    transform: rotate(45deg);
}

.about-close-line-2 {
    transform: rotate(-45deg);
}

#kbbo-popup {
    position: fixed;
    z-index: 13;
    top: 50%;
    left: 50%;
    width: min(960px, calc(100vw - 48px));
    display: flex;
    align-items: flex-start;
    gap: 8px;
    visibility: hidden;
    transform: translate(-50%, calc(-50% + 100vh));
    transition: transform 0.5s cubic-bezier(0.64, 0, 0.78, 0), visibility 0s linear 0.5s;
}

#kbbo-popup.is-open {
    visibility: visible;
    transform: translate(-50%, -50%);
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1), visibility 0s linear 0s;
}

#kbbo-close {
    position: relative;
    order: 2;
    flex: 0 0 32px;
    margin-top: 12px;
    width: 32px;
    height: 16px;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
}

#kbbo-panel {
    box-sizing: border-box;
    order: 1;
    flex: 1;
    min-width: 0;
    padding: 48px 72px;
    border: 1px solid black;
    border-radius: 0 24px 0 0;
    background: white;
    color: var(--textOnWhite);
}

#kbbo-popup-title {
    margin: 0 0 32px;
    font-size: 24px;
    font-weight: 400;
    letter-spacing: -3%;
    line-height: 1;
    color: black;
}

#kbbo-input {
    box-sizing: border-box;
    width: 100%;
    padding: 20px 24px;
    border: 1px solid black;
    border-radius: 0;
    background: white;
    font-family: inherit;
    font-size: 16px;
    letter-spacing: -3%;
    color: black;
}

#kbbo-input::placeholder {
    color: #767676;
}

#kbbo-input:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

#kbbo-popup.is-error #kbbo-input {
    border-color: #C4231A;
}

#kbbo-error {
    margin: 8px 0 0;
    font-size: 14px;
    letter-spacing: -3%;
    color: #C4231A;
    visibility: hidden;
}

#kbbo-popup.is-error #kbbo-error {
    visibility: visible;
}

#kbbo-submit {
    margin-top: 24px;
    padding: 16px 24px;
    border: 0;
    background: var(--primary);
    color: white;
    font-family: inherit;
    font-size: 16px;
    letter-spacing: -3%;
    cursor: pointer;
}

@media screen and (max-width: 767px) {
    #kbbo-popup {
        left: 24px;
        width: calc(100vw - 48px);
        flex-direction: column;
        transform: translate(0, calc(-50% + 100vh));
    }

    #kbbo-popup.is-open {
        transform: translate(0, -50%);
    }

    #kbbo-close {
        order: 0;
        align-self: flex-end;
        margin-top: 0;
    }

    #kbbo-panel {
        width: 100%;
        padding: 32px 24px;
    }

    #kbbo-popup-title {
        font-size: 20px;
        line-height: 1.3;
    }
}

@media screen and (max-width: 767px) {
    #menu-popup {
        right: 12px;
    }

    #about-panel {
        padding: 48px 24px;
    }

    #about-content {
        flex-direction: column;
        flex: 1;
    }

    #about-image {
        width: 100%;
        height: auto;
        max-width: none;
    }

    #about-copy {
        padding-top: 0;
    }
}

@media screen and (min-width: 1100px) {
    #mouse-cursor.is-visible {
        visibility: visible;
    }

    #header-text {
        color: black;
    }
}