:root {
    --black: #0A0A0A;
    --white: #F5F2EE;
    --grey: #8A8680;
    --grey-dark: #3A3835;
    --grey-light: #C8C4BF;
    --accent: #F5F2EE;
    --border: rgba(245, 242, 238, 0.08);
    --border-hover: rgba(245, 242, 238, 0.2);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Libre Franklin', sans-serif;
    background: var(--black);
    color: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    cursor: default;
}

::selection {
    background: var(--white);
    color: var(--black);
}

a {
    color: inherit;
    text-decoration: none;
}

body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 9999;
}

nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 2rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    mix-blend-mode: difference;
}
.nav-name {
    font-weight: 500;
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}
.nav-links a {
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    position: relative;
    padding-bottom: 2px;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--white);
    transition: width 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.nav-links a:hover::after {
   width: 100%;
}

.lang-switch {
    background: none;
    border: 1px solid var(--border-hover);
    color: var(--white);
    font-family: 'Libre Franklin', sans-serif;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.4rem 0.8rem;
    cursor: pointer;
    transition: all 0.3s ease;
    line-height: 1;
}
.lang-switch:hover {
    background: var(--white);
    color: var(--black);
    border-color: var(--white);
}

main {
    display: flex;
    flex-direction: column;
}
    
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 0 3rem 6rem;
    position: relative;
}
.hero-watermark {
    position: absolute;
    top: 50%;
    right: 3rem;
    transform: translateY(-50%);
    font-family: 'Instrument Serif', serif;
    font-size: clamp(12rem, 25vw, 22rem);
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1px rgba(245, 242, 238, 0.06);
    user-select: none;
    pointer-events: none;
}
.hero-intro {
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--grey);
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeUp 0.8s ease 0.2s forwards;
}
.hero h1 {
    font-family: 'Instrument Serif', serif;
    font-weight: 400;
    font-size: clamp(2.8rem, 7vw, 5.5rem);
    line-height: 1.08;
    max-width: 900px;
    letter-spacing: -0.02em;
    opacity: 0;
    animation: fadeUp 0.8s ease 0.4s forwards;
}
.hero h1 em {
    font-style: italic;
    color: var(--grey);
}
.hero-meta {
    display: flex;
    gap: 4rem;
    margin-top: 3rem;
    opacity: 0;
    animation: fadeUp 0.8s ease 0.6s forwards;
}
.hero-meta-item {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}
.hero-meta-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--grey);
}
.hero-meta-value {
    font-family: 'Instrument Serif', serif;
    font-size: 1.4rem;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.divider {
    width: 100%;
    height: 1px;
    background: var(--border);
}

.about {
    padding: 8rem 3rem;
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 4rem;
    max-width: 1100px;
}
.section-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--grey);
    padding-top: 0.5rem;
}
.about-text p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--grey-light);
    max-width: 600px;
}
.about-text p + p {
    margin-top: 1.5rem;
}
.about-text strong {
    color: var(--white);
    font-weight: 500;
}

.services {
    padding: 6rem 3rem 8rem;
}
.services-header {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}
.services-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
}
.service-item {
    background: var(--black);
    padding: 3rem 2rem;
    transition: background 0.5s ease;
}
.service-item:hover {
    background: rgba(245, 242, 238, 0.03);
}
.service-number {
    font-size: 0.7rem;
    color: var(--grey);
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
}
.service-item h3 {
    font-family: 'Instrument Serif', serif;
    font-weight: 400;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}
.service-item p {
    font-size: 0.85rem;
    color: var(--grey);
    line-height: 1.7;
}

.projects {
    padding: 6rem 3rem 8rem;
}
.projects-header {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}
.projects-header h2 {
    font-family: 'Instrument Serif', serif;
    font-weight: 400;
    font-size: 2.5rem;
}
.project-list {
    border-top: 1px solid var(--border);
}
.project-item {
    border-bottom: 1px solid var(--border);
    transition: border-color 0.4s ease;
}
.project-item:hover {
    border-bottom-color: var(--border-hover);
}
.project-link {
    display: grid;
    grid-template-columns: 1fr auto auto auto;
    align-items: center;
    gap: 3rem;
    padding: 2rem 0;
    position: relative;
    cursor: pointer;
}
.project-name {
    font-family: 'Instrument Serif', serif;
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    font-weight: 400;
    transition: color 0.3s ease;
}
.project-item:hover .project-name {
    color: var(--grey-light);
}
.project-type {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--grey);
    white-space: nowrap;
}
.project-year {
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    color: var(--grey);
    white-space: nowrap;
}
.project-arrow {
    width: 50px;
    height: 50px;
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s ease;
    flex-shrink: 0;
}
.project-arrow svg {
    width: 18px;
    height: 18px;
    transition: transform 0.4s ease;
}
.project-item:hover .project-arrow {
    background: var(--white);
    border-color: var(--white);
}
.project-item:hover .project-arrow svg {
    transform: translate(3px, -3px);
}
.project-item:hover .project-arrow svg line,
.project-item:hover .project-arrow svg polyline {
    stroke: var(--black);
}

.contact {
    padding: 10rem 3rem;
    text-align: center;
    position: relative;
}
.contact-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--grey);
    margin-bottom: 3rem;
}
.contact h2 {
    font-family: 'Instrument Serif', serif;
    font-weight: 400;
    font-size: clamp(2.5rem, 6vw, 5rem);
    line-height: 1.1;
    margin-bottom: 3rem;
}
.contact h2 em {
    font-style: italic;
    color: var(--grey);
}
.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem 3rem;
    border: 1px solid var(--border-hover);
    font-size: 0.85rem;
    font-family: 'Libre Franklin', sans-serif;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: all 0.4s ease;
}
.contact-btn:hover {
    background: var(--white);
    color: var(--black);
    border-color: var(--white);
}
.contact-btn svg {
    width: 16px;
    height: 16px;
    transition: transform 0.4s ease;
}
.contact-btn:hover svg {
    transform: translateX(5px);
}
.contact-btn:hover svg line,
.contact-btn:hover svg polyline {
    stroke: var(--black);
}

footer {
    padding: 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border);
}
.footer-left {
    font-size: 0.75rem;
    color: var(--grey);
    letter-spacing: 0.05em;
}
.footer-right {
    display: flex;
    gap: 2rem;
}
.footer-right a {
    font-size: 0.75rem;
    color: var(--grey);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: color 0.3s;
}
.footer-right a:hover {
   color: var(--white);
}

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.error-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 8rem 2rem 6rem;
    position: relative;
}
.error-code {
    font-family: 'Instrument Serif', serif;
    font-size: clamp(8rem, 20vw, 18rem);
    font-weight: 400;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1px rgba(245, 242, 238, 0.1);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -55%);
    user-select: none;
    pointer-events: none;
}
.error-content {
    position: relative;
    z-index: 1;
}
.error-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--grey);
    margin-bottom: 2rem;
}
.error-content h1 {
    font-family: 'Instrument Serif', serif;
    font-weight: 400;
    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1.15;
    margin-bottom: 1.5rem;
    animation: fadeUp 0.8s ease 0.2s both;
}
.error-content h1 em {
    font-style: italic;
    color: var(--grey);
}
.error-desc {
    font-size: 1rem;
    color: var(--grey-light);
    max-width: 420px;
    margin: 0 auto 3rem;
    line-height: 1.7;
    animation: fadeUp 0.8s ease 0.4s both;
}
.error-btn {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem 3rem;
    border: 1px solid var(--border-hover);
    font-size: 0.85rem;
    font-family: 'Libre Franklin', sans-serif;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--white);
    text-decoration: none;
    transition: all 0.4s ease;
    animation: fadeUp 0.8s ease 0.6s both;
}
.error-btn:hover {
    background: var(--white);
    color: var(--black);
    border-color: var(--white);
}
.error-btn svg {
    width: 16px;
    height: 16px;
    transition: transform 0.4s ease;
}
.error-btn:hover svg {
    transform: translateX(-5px);
}
.error-btn:hover svg line,
.error-btn:hover svg polyline {
    stroke: var(--black);
}

@media (max-width: 900px) {
    .services-list {
        grid-template-columns: 1fr;
    }

    .about,
    .services-header,
    .projects-header {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .project-link {
        grid-template-columns: 1fr auto auto;
        gap: 1.5rem;
    }

    .project-type {
        display: none;
    }
}

@media (max-width: 600px) {
    nav {
        padding: 1.5rem 1.5rem;
    }

    .nav-links { gap: 1.2rem; }
    .nav-links a { font-size: 0.7rem; }

    .lang-switch {
        font-size: 0.65rem;
        padding: 0.3rem 0.6rem;
    }

    .hero {
        padding: 0 1.5rem 4rem;
    }

    .hero-watermark {
        right: 1rem;
        -webkit-text-stroke: 1px rgba(245, 242, 238, 0.04);
    }

    .hero-meta {
        gap: 2rem;
        flex-wrap: wrap;
    }

    .about,
    .services,
    .projects,
    .contact {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

    .about { padding-top: 5rem; padding-bottom: 5rem; }
    .services { padding-top: 4rem; padding-bottom: 5rem; }
    .projects { padding-top: 4rem; padding-bottom: 5rem; }
    .contact { padding-top: 6rem; padding-bottom: 6rem; }

    .service-item { padding: 2rem 1.5rem; }

    .project-arrow {
        width: 40px;
        height: 40px;
    }

    .project-year {
        display: none;
    }

    footer {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
        padding: 2rem 1.5rem;
    }
}