@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@700;800&family=Noto+Sans:wght@400;600&display=swap');

@keyframes slide-down {
    from { transform: translateY(-100%); }
    to   { transform: translateY(0); }
}

@keyframes slide-up {
    from { transform: translateY(0); }
    to   { transform: translateY(-100%); }
}

:root {
    --color-ink:    #181818;
    --color-muted:  #616161;
    --color-line:   #dadada;
    --color-bg:     #ffffff;

    --font-display: "Montserrat", sans-serif;
    --font-body:    "Noto Sans", sans-serif;

    --max-width: 80rem;
    --gap:   2rem;

    scroll-behavior: smooth;
}

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

body {
    margin: 0 auto;
    max-width: var(--max-width);
    padding: 0 var(--gap);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-muted);
    background: var(--color-bg);
}

section {
    padding: 7rem 0;
}

.section__title {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 2.75rem;
    color: var(--color-ink);
    margin: 0 0 4rem;
    text-align: center;
}

.btn {
    display: inline-block;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    border: 2px solid var(--color-ink);
    transition: 0.2s, color 0.2s;
}

.btn--primary {
    background: var(--color-ink);
    color: var(--color-bg);
}

.btn--primary:hover {
    background: var(--color-muted);
    border-color: var(--color-muted);
}

.btn--outline {
    background: transparent;
    color: var(--color-ink);
}

.btn--outline:hover {
    background: var(--color-ink);
    color: var(--color-bg);
}

.header {
    position: absolute;
    inset: 0 0 auto 0;
    z-index: 100;
    background: var(--color-bg);
    border-bottom: 1px solid transparent;
}

.header--sticky {
    position: fixed;
    border-bottom-color: var(--color-line);
    animation: slide-down 0.3s ease-out;
}

.header--hiding {
    position: fixed;
    animation: slide-up 0.3s ease-out;
}

.header__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1.5rem var(--gap);
}

.header__logo {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--color-ink);
}

.header__nav-list {
    display: flex;
    gap: 2rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.header__nav-link {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    color: var(--color-muted);
    transition: color 0.2s;
}

.header__nav-link:hover {
    color: var(--color-ink);
}

.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 0;
}

.hero__content {
    display: flex;
    flex-direction: column;
}

.hero__tagline {
    margin: 0;
    font-size: 1.5rem;
    color: var(--color-muted);
}

.hero__tagline--end {
    align-self: flex-end;
}

.hero__title {
    margin: 0.15em 0;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(3rem, 8vw, 6rem);
    color: var(--color-ink);
    line-height: 1;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 2.5rem;
    align-self: center;
}

.portfolio__list {
    display: flex;
    flex-direction: column;
    gap: 5rem;
}

.project {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: center;
}

.project--reverse {
    grid-template-columns: 2fr 1fr;
}

.project--reverse .project__media {
    order: 2;
}

.project--reverse .project__body  {
    order: 1;
}

.project__media {
    border-radius: 0.75rem;
    overflow: hidden;
}

.project__image {
    display: block;
    width: 100%;
    height: auto;
    transition: transform 0.4s ease;
    aspect-ratio: 1;
    object-fit: cover;
}

.project__media:hover .project__image {
    transform: scale(1.05);
}

.project__body {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 1rem;
}

.project__title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.75rem;
    color: var(--color-ink);
    margin: 0 0 0.75rem;
}

.project__description {
    font-size: 1.125rem;
    line-height: 1.7;
    margin: 0;
}

.project__attribution {
    font-size: 0.75rem;
    color: var(--color-muted);
}

.project__attribution a {
    color: inherit;
    text-underline-offset: 2px;
}

.about__skills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    list-style: none;
    margin-bottom: 4rem;
    padding: 0;
}

.about__skill {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-muted);
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-line);
    border-radius: 2rem;
    transition: 0.2s;
}

.about__skill:hover {
    color: var(--color-ink);
    border-color: var(--color-ink);
}

.about__text {
    font-size: 1.125rem;
    line-height: 1.5;
}

.about__link {
    color: var(--color-ink);
    text-underline-offset: 3px;
    transition: opacity 0.2s;
}

.about__link:hover {
    opacity: 0.6;
}

.contact__text {
    font-size: 1.125rem;
    text-align: center;
    margin: 0 auto 3rem;
}

.contact__list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    list-style: none;
    margin: 0 auto;
    padding: 0;
}

.contact__item {
    border: 1px solid var(--color-line);
    border-radius: 0.75rem;
    transition: border-color 0.2s;
}

.contact__item:hover {
    border-color: var(--color-ink);
}

.contact__link {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.5rem;
    text-decoration: none;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1.0625rem;
    color: var(--color-ink);
}

.contact__label {
    font-weight: 400;
    font-size: 0.75rem;
    color: var(--color-muted);
}

.bianka {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    padding: 7rem 0;
}

.bianka__media {
    width: min(28rem, 100%);
    border-radius: 0.75rem;
    overflow: hidden;
}

.bianka__image {
    display: block;
    width: 100%;
    height: auto;
}

.bianka__link {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-ink);
    text-decoration: none;
    border-bottom: 2px solid var(--color-line);
    padding-bottom: 0.15em;
    transition: border-color 0.2s;
}

.bianka__link:hover {
    border-color: var(--color-ink);
}

.footer {
    padding: 2rem 0;
    text-align: center;
}

.footer__text {
    font-size: 1rem;
    color: var(--color-muted);
    margin: 0;
}

@media (max-width: 40rem) {
    :root {
        --gap: 1.25rem;
    }

    section {
        padding: 4rem 0;
    }

    .header__logo {
        display: none;
    }

    .header__nav-list {
        gap: 1.25rem;
    }

    .project,
    .project--reverse {
        grid-template-columns: 1fr;
    }

    .project--reverse .project__media,
    .project--reverse .project__body {
        order: unset;
    }

    .contact__list {
        grid-template-columns: 1fr;
    }
}