:root {
    --black: #0d0c0a;
    --white: #e9e4d9;
    --gray: #858078;
    --line: #2a2824;
    --accent: #c99763;
    --font: "Manrope", sans-serif;
    --font-heading: "Space Grotesk", sans-serif;

    --fs-2xs: 11px;
    --fs-xs: 12px;
    --fs-sm: 13px;
    --fs-base: 15px;
    --fs-md: 16px;
    --fs-lg: 19px;

    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --space-8: 64px;

    --nav-height: 80px;
    --nav-height-mobile: 68px;
}

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

html,
body {
    width: 100%;
    height: 100%;
}

body {
    background: var(--black);
    color: var(--white);
    font-family: var(--font);
}

button,
a {
    color: inherit;
    font: inherit;
}

button {
    border: none;
    background: none;
    cursor: pointer;
}

a {
    text-decoration: none;
}

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    padding: 0 45px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--line);
    z-index: 100;
}

.logo {
    font-family: var(--font-heading);
    font-size: var(--fs-lg);
    font-weight: 700;
    padding: var(--space-3) 0;
    margin: calc(var(--space-3) * -1) 0;
    transition: color .3s ease;
}

.logo:hover {
    color: var(--accent);
}

.nav nav {
    display: flex;
    gap: 40px;
}

.nav-link {
    position: relative;
    color: var(--gray);
    font-size: var(--fs-base);
    font-weight: 500;
    padding: var(--space-3) 0;
    margin: calc(var(--space-3) * -1) 0;
    transition: color .3s ease;
}

.nav-link:hover,
.nav-link:active {
    color: var(--white);
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 5px;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.3s ease;
}

.nav-link.active::after {
    width: 100%;
}

.nav-year {
    color: var(--gray);
    font-size: var(--fs-base);
}

main {
    position: relative;
    width: 100vw;
    height: 100vh;
}
.page {
    position: absolute;
    inset: 0;
    padding: var(--nav-height) var(--space-6) var(--space-6);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease;
}
.page.active {
    opacity: 1;
    pointer-events: auto;
}
.home-intro {
    max-width: 600px;
}

.eyebrow {
    margin-bottom: var(--space-4);
    color: var(--gray);
    font-size: var(--fs-sm);
    letter-spacing: 0.02em;

}
.home h1 {
    max-width: 600px;
    font-family: var(--font-heading);
    font-size: clamp(28px, 4vw, 38px);
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.01em;
}
.intro {
    max-width: 550px;
    margin-top: var(--space-5);
    color: var(--gray);
    font-size: var(--fs-md);
    line-height: 1.7;
}
.projects-content {
    width: min(900px, 100%);
    margin: var(--space-8) auto 0;
}
.projects h2 {
    font-family: var(--font-heading);
    font-size: clamp(22px, 3vw, 30px);
    font-weight: 600;
    letter-spacing: -0.01em;
}
.project-list {
    margin-top: var(--space-7);
}

.project {
    width: 100%;
    padding: var(--space-5) var(--space-1);
    display: grid;
    grid-template-columns: 60px 1fr 80px;
    column-gap: var(--space-3);
    align-items: center;
    text-align: left;
    border-top: 1px solid var(--line);
    color: var(--gray);
    transition: color 0.3s ease,
                padding 0.3s ease;
}
.project:last-child {
    border-bottom: 1px solid var(--line);
}

.project-name {
    color: var(--white);
    font-size: var(--fs-lg);
    font-weight: 500;
}
.project-number,
.project-year {
    font-size: var(--fs-xs);
}

.project:hover {
    padding-left: var(--space-3);
    color: var(--accent);
}

.project:hover .project-name {
    color: var(--accent);
}
.project-detail {
    display: none;
    max-width: 800px;
    margin: var(--space-7) auto 0;
}
.project-detail-number {
    color: var(--gray);
    font-size: var(--fs-xs);
}
.project-detail-name {
    color: var(--white);
    font-family: var(--font-heading);
    font-size: clamp(20px, 3vw, 26px);
    font-weight: 600;
    letter-spacing: -0.01em;
}
.project-detail-year {
    color: var(--gray);
    font-size: var(--fs-xs);
}
.project-detail-description {
    max-width: 650px;
    margin-top: var(--space-4);
    color: var(--gray);
    font-size: var(--fs-md);
    line-height: 1.7;
}
.project-detail-meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}
.project-tags {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
    margin-top: var(--space-5);
}
.project-tags span {
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--line);
    color: var(--gray);
    font-size: var(--fs-xs);
}
.project-detail-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    margin-top: var(--space-5);
    padding: var(--space-2) var(--space-1);
    margin-left: calc(var(--space-1) * -1);
    color: var(--white);
    font-size: var(--fs-sm);
    transition: color 0.3s ease;
}
.project-detail-link:hover {
    color: var(--accent);
}
.project-detail-link[hidden] {
    display: none;
}
.project-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    min-height: 300px;
    margin-top: var(--space-7);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    color: var(--gray);
    font-size: var(--fs-xs);
    overflow: hidden;
}
.project-image-fallback {
    display: none;
}
.project-image.is-empty .project-image-fallback {
    display: block;
}
.project-image.is-empty .project-detail-image {
    display: none;
}
.project-detail-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}   
.back-button {
    margin-top: calc(var(--space-3) * -1);
    margin-bottom: calc(var(--space-6) - var(--space-3));
    padding: var(--space-3) 0;
    color: var(--gray);
    font-size: var(--fs-sm);    
    transition: color 0.3s ease;
}
.back-button:hover {
    color: var(--accent);
}

@media (max-width: 700px) {
    .nav {
        height: var(--nav-height-mobile);
        padding: 0 20px;
    }
    .nav nav {
        gap: 20px;
    }
    .nav-year {
        display: none;
    }
    .page {
        padding: var(--nav-height-mobile) var(--space-4) var(--space-5);
    }
    .intro {
        font-size: var(--fs-base);
    }
    .projects-content {
        margin-top: 80px;
    }
    .project {
        grid-template-columns: 40px 1fr 55px;
        padding: var(--space-4) var(--space-2);
    }
    .project-name {
        font-size: var(--fs-base);
    }
    .home-contact {
        margin-top: var(--space-6);
        width: 100%
    }
    .home-bottom {
        left: 20px;
        bottom: 25px;
    }
    .contact-links {
        gap: var(--space-4);
    }
    .project-detail {
        margin-top: var(--space-6);
    }
    .project-detail-description {
        font-size: var(--fs-base);
    }
    .project-image {
        min-height: 220px;
    }
    .project-detail-image {
        object-fit: contain;
    }
}
.status-dot {
    display: inline-block;
    width: 7px;
    height: 7px;
    margin-right: var(--space-2);
    border-radius: 50%;
    background: var(--accent);
}
.intro + .intro {
    margin-top: var(--space-3);
}
.home-contact {
    width: min(550px, 100%);
    margin-top: var(--space-7);
    padding-top: var(--space-5);
    border-top: 1px solid var(--line);
}
.home-contact-label {
    display: block;
    margin-bottom: var(--space-4);
    color: var(--gray);
    font-size: var(--fs-xs);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.contact-links {
    display: flex;
    gap: var(--space-5);
    flex-wrap: wrap;
}
.contact-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-1);
    margin: calc(var(--space-2) * -1) calc(var(--space-1) * -1);
    color: var(--white);
    font-size: var(--fs-base);
    transition: color 0.3s ease;
}
.contact-icon {
    flex-shrink: 0;
}
.contact-icon--github {
    width: 15px;
    height: 15px;
    background-color: currentColor;
    -webkit-mask-image: url("https://cdn.jsdelivr.net/npm/simple-icons@latest/icons/github.svg");
    mask-image: url("https://cdn.jsdelivr.net/npm/simple-icons@latest/icons/github.svg");
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-size: contain;
    mask-size: contain;
    -webkit-mask-position: center;
    mask-position: center;

}
.contact-icon--linkedin {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 15px;
    height: 15px;
    border: 1px solid currentColor;
    border-radius: 3px;
    font-size: 9px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.5px;
    transition: border-color 0.3s ease;
}
.contact-icon--mail {
    font-size: var(--fs-base);
    line-height: 1;
}
.contact-link:hover {
    color: var(--accent);
}
.contact-link::after {
    content: "";
    position: absolute;
    left: 2px;
    bottom: -1px;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.3s ease;
}
.contact-link:hover::after {
    width: calc(100% - 4px);
}
a:focus-visible,
button:focus-visible {
    outline: 1px solid var(--accent);
    outline-offset: 4px;
}
a:focus:not(:focus-visible), 
button:focus:not(:focus-visible) {
    outline: none;
}
.home {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
}
.home-bottom {
    position: absolute;
    left: 8%;
    bottom: 40px;
    color: var(--gray);
    font-size: var(--fs-xs);
}
.home-bottom-line {
    display: inline-block;
    width: 20px;
    height: 1px;
    margin-right: var(--space-2);
    background: var(--line);
    vertical-align: middle;
}
.loading-screen {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    background: var(--black);
    transition: opacity 0.6s ease, visibility 0.6s ease;
}
.loading-screen.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}
.loading-name {
    color: var(--white);
    font-family: var(--font-heading);
    font-size: var(--fs-sm);
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.loading-bar {
    width: 120px;
    height: 2px;
    background: var(--line);
    border-radius: 2px;
    overflow: hidden;
}
.loading-bar span {
    display: block;
    width: 40%;
    height: 100%;
    background: var(--accent);
    animation: loading-sweep 1.1s ease-in-out infinite;
}
@keyframes loading-sweep {
    0% {
        transform: translateX(-120%);
    }
    50% {
        transform: translateX(160%);
    }
    100% {
        transform: translateX(-120%);
    }
}
.loading-percent {
    color: var(--gray);
    font-size: var(--fs-2xs);
    letter-spacing: 0.05em;
    font-variant-numeric: tabular-nums;
}
.bg-animation {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}
.bg-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    will-change: transform;
}
.bg-blob--one {
    top: -15%;
    left: -15%;
    width: 60vmax;
    height: 60vmax;
    background: var(--accent);
    opacity: 0.1;
    animation: drift-one 44s ease-in-out infinite alternate;
}
.bg-blob--two {
    bottom: -20%;
    right: -15%;
    width: 55vmax;
    height: 55vmax;
    background: var(--gray);
    opacity: 0.08;
    animation: drift-two 56s ease-in-out infinite alternate;
}
.bg-blob--three {
    top: 35%;
    left: 45%;
    width: 40vmax;
    height: 40vmax;
    background: var(--line);
    opacity: 0.15;
    animation: drift-three 38s ease-in-out infinite alternate;
}
@keyframes drift-one {
    from {
        transform: translate(0, 0) scale(1);
    } to {
        transform: translate(6vw, 8vh) scale(1.1);
    }
}
@keyframes drift-two {
    from {
        transform: translate(0, 0) scale(1);
    } to {
        transform: translate(-6vw, -7vh) scale(1.06);
    }
}
@keyframes drift-three {
    from {
        transform: translate(0, 0) scale(1);
    } to {
        transform: translate(-4vw, 5vh) scale(1.08);
    }
}
.bg-noise {
    position: absolute;
    inset: -10%;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
    opacity: 0.035;
    mix-blend-mode: overlay;
    animation: noise-shift 12s steps(6) infinite;
}
@keyframes noise-shift {
    0% {
        transform: translate(0, 0);
    }
    20% {
        transform: translate(-2%, -1%);
    }
    40% {
        transform: translate(1%, -2%);
    }
    60% {
        transform: translate(-1%, 2%);
    }
    80% {
        transform: translate(2%, -1%);
    }
    100% {
        transform: translate(0, 0);
    }
}
@media (max-width: 1024px) {
    .bg-blob {
        filter: blur(90px);
    }
    .bg-blob--three {
        display: none;
    }
}
@media (max-width: 700px) {
    .bg-blob {
        filter: blur(60px);
    }
    .bg-noise {
        display: none;
    }
}
@media (prefers-reduced-motion: reduce) {
    .loading-screen {
        transition-duration: 0.01s;
    }
    .loading-bar span {
        animation: none;
        width: 100%;
    }
    .bg-blob {
        animation: none;
    }
    .bg-noise {
        animation: none;
    }
}
.project-code {
    margin-top: var(--space-7);
    border: 1px solid var(--line);
    overflow: hidden;
    background: rgba(0, 0, 0, 0.2);
}
.project-code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--line);
    color: var(--gray);
    font-size: var(--fs-xs);
}
.copy-code {
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--line);
    color:  var(--gray);
    font-size: var(--fs-xs);
    transition: color 0.2s ease, border-color 0.2s ease;
}
.copy-code:hover {
    color: var(--accent);
    border-color: var(--accent);
}
.project-code pre {
    margin: 0;
    padding: var(--space-5);
    overflow-x: auto;
}
.project-code code {
    color: var(--white);
    font-family: "JetBrains Mono", monospace;
    font-size: 12px;
    line-height: 1.7;
    white-space: pre;
}