@font-face {
    font-family: "Europa";
    src: url("/fonts/europa-regular-webfont.woff2") format("woff2");
    font-style: normal;
    font-weight: 400;
    font-display: swap;
}


:root {
    --color-background: #ffffff;
    --color-text: #222222;

    --font-family: "Europa", sans-serif;

    --font-size: clamp(1.25rem, 1.8vw, 1.75rem);
    --font-size-small: clamp(1rem, 1.35vw, 1.25rem);
    --font-size-navigation: clamp(0.8rem, 1vw, 1rem);

    --page-padding: clamp(1.25rem, 4vw, 4rem);

    --transition-fast: 180ms ease;
    --transition-standard: 350ms cubic-bezier(0.22, 1, 0.36, 1);
    --transition-slow: 900ms cubic-bezier(0.16, 1, 0.3, 1);
}


/* --------------------------------------------------
   RESET
-------------------------------------------------- */

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

html {
    min-height: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: 1rem;
}

body {
    min-height: 100%;
    margin: 0;

    background: var(--color-background);
    color: var(--color-text);

    font-family: var(--font-family);
    font-size: var(--font-size);
    font-weight: 400;
    line-height: 1.35;

    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

button {
    padding: 0;
    border: 0;
    background: none;
}

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

p,
h1,
h2 {
    margin: 0;
}

img,
svg {
    display: block;
    max-width: 100%;
}


/* --------------------------------------------------
   HEADER / LANGUAGE SWITCH
-------------------------------------------------- */

.site-header {
    position: fixed;
    z-index: 100;

    top: 0;
    right: 0;
    left: 0;

    display: flex;
    justify-content: flex-end;
    align-items: center;

    padding: var(--page-padding);

    pointer-events: none;
}

.language-switch {
    display: flex;
    align-items: center;
    gap: 0.3rem;

    font-size: var(--font-size-navigation);

    pointer-events: auto;
}

.language-button {
    position: relative;
    display: inline-block;

    color: inherit;

    transition:
        transform var(--transition-fast);
}

.language-button:hover {
    transform: translateY(-1px);
}

.language-button::after {
    content: "";

    position: absolute;

    right: 0;
    bottom: -0.06em;
    left: 0;

    height: 1px;

    background: currentColor;

    transform: scaleX(0);
    transform-origin: right center;

    transition:
        transform var(--transition-standard);
}

.language-button:hover::after,
.language-button:focus-visible::after,
.language-button.is-active::after {
    transform: scaleX(1);
    transform-origin: left center;
}

.language-button:focus-visible {
    outline: none;
}

.language-separator {
    opacity: 0.3;
}


/* --------------------------------------------------
   ANIMATED LINKS
-------------------------------------------------- */

.animated-link {
    position: relative;

    display: inline-block;
    width: fit-content;

    transition:
        transform var(--transition-standard);
}

.animated-link::after {
    content: "";

    position: absolute;

    right: 0;
    bottom: -0.02em;
    left: 0;

    height: 2px;

    background: currentColor;

    transform: scaleX(0);
    transform-origin: right center;

    transition:
        transform var(--transition-standard);
}

.animated-link:hover::after,
.animated-link:focus-visible::after {
    transform: scaleX(1);
    transform-origin: left center;
}

.animated-link:focus-visible {
    outline: none;
}

/* Subtle tactile movement */

.email-link:hover {
    transform: translateY(-1px);
}

.back-link:hover {
    transform: translateX(-2px);
}


/* --------------------------------------------------
   FULLSCREEN SECTIONS
-------------------------------------------------- */

.section-fullscreen {
    position: relative;

    min-height: 100svh;

    display: flex;
    align-items: center;

    padding:
        calc(var(--page-padding) * 1.5)
        var(--page-padding);
}

.section-content {
    width: 100%;
    max-width: 100rem;

    margin: 0 auto;
}


/* --------------------------------------------------
   HERO
-------------------------------------------------- */

.hero {
    align-items: center;
}

.hero h1 {
    display: flex;
    flex-direction: column;

    font-size: var(--font-size);
    font-weight: 400;
    line-height: 1.15;
}

.hero h1 span {
    display: block;

    opacity: 0;
    transform: translateY(0.25em);

    animation:
        hero-reveal 900ms cubic-bezier(0.16, 1, 0.3, 1)
        forwards;
}

.hero h1 span:first-child {
    animation-delay: 80ms;
}

.hero h1 span:last-child {
    animation-delay: 180ms;
}

@keyframes hero-reveal {

    from {
        opacity: 0;
        transform: translateY(0.25em);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* --------------------------------------------------
   INTRO / SERVICES
-------------------------------------------------- */

.intro {
    align-items: center;
}

.intro h2 {
    max-width: 55rem;

    font-size: var(--font-size);
    font-weight: 400;
    line-height: 1.35;

    opacity: 0;
    transform: translateY(0.75rem);

    transition:
        opacity var(--transition-slow),
        transform var(--transition-slow);
}

.intro-details {
    display: flex;
    flex-direction: column;

    gap: 1.25rem;

    margin-top: 2.5rem;

    opacity: 0;
    transform: translateY(0.75rem);

    transition:
        opacity var(--transition-slow),
        transform var(--transition-slow);
}

.intro-details p {
    line-height: 1.35;
}

.contact-details {
    display: flex;
    flex-direction: column;

    gap: 0.15em;

    margin-top: 4.5rem;

    opacity: 0;
    transform: translateY(0.75rem);

    transition:
        opacity var(--transition-slow),
        transform var(--transition-slow);
}


/* Smaller links use thinner underlines */

.site-footer .animated-link::after,
.imprint-text .animated-link::after,
.back-link::after {
    height: 1px;
}

/* Larger email link on the index page */

.contact-details .email-link::after {
    height: 2px;
}

.intro.is-visible h2,
.intro.is-visible .intro-details,
.intro.is-visible .contact-details {
    opacity: 1;
    transform: translateY(0);
}

.intro.is-visible .intro-details {
    transition-delay: 100ms;
}

.intro.is-visible .contact-details {
    transition-delay: 180ms;
}


/* --------------------------------------------------
   SCROLL INDICATOR
-------------------------------------------------- */

.scroll-indicator {
    position: absolute;

    right: var(--page-padding);
    bottom: var(--page-padding);

    display: flex;
    justify-content: center;
    align-items: center;

    width: 2rem;
    height: 2.5rem;

    transition:
        transform var(--transition-standard);
}

.scroll-indicator:hover {
    transform: translateY(0.3rem);
}

.scroll-indicator:focus-visible {
    outline: 1px solid var(--color-text);
    outline-offset: 0.4rem;
}

.scroll-arrow {
    position: relative;

    width: 0.9rem;
    height: 0.9rem;

    border-right: 1px solid currentColor;
    border-bottom: 1px solid currentColor;

    transform:
        rotate(45deg)
        translate(-0.2rem, -0.2rem);

    animation:
        arrow-bounce 3.8s ease-in-out infinite;
}

@keyframes arrow-bounce {

    0%,
    100% {
        opacity: 0.65;

        transform:
            rotate(45deg)
            translate(-0.2rem, -0.2rem);
    }

    50% {
        opacity: 1;

        transform:
            rotate(45deg)
            translate(0.05rem, 0.05rem);
    }
}


/* --------------------------------------------------
   FOOTER
-------------------------------------------------- */

.site-footer {
    display: flex;
    align-items: center;

    min-height: 5rem;

    padding:
        1.5rem
        var(--page-padding);

    font-size: var(--font-size-small);
}

.footer-spacer {
    width: 1.5rem;
}


/* --------------------------------------------------
   IMPRINT
-------------------------------------------------- */

.imprint-main {
    min-height: calc(100svh - 5rem);

    display: flex;
    align-items: center;

    padding:
        8rem
        var(--page-padding)
        5rem;
}

.imprint-content {
    width: 100%;
    max-width: 100rem;

    margin: 0 auto;
}

.imprint-inner {
    max-width: 50rem;
}

.imprint-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;

    gap: 2rem;

    margin-bottom: 4rem;
}

.imprint-heading h1 {
    font-size: var(--font-size);
    font-weight: 400;
}

.back-link {
    flex-shrink: 0;

    font-size: var(--font-size-navigation);
}

.imprint-text {
    max-width: 42rem;

    font-size: var(--font-size-small);
    line-height: 1.45;
}

.imprint-text p + p {
    margin-top: 1.5rem;
}

.imprint-text a {
    display: inline-block;
}

.placeholder {
    opacity: 0.45;
}


/* --------------------------------------------------
   MOBILE
-------------------------------------------------- */

@media (max-width: 600px) {

    :root {
        --page-padding: 1.25rem;
    }

    .site-header {
        padding-top: 1.25rem;
    }

    .section-fullscreen {
        padding:
            5rem
            var(--page-padding);
    }

    .intro-details {
        margin-top: 1.75rem;
    }

    .contact-details {
        margin-top: 3.75rem;
    }

    .scroll-indicator {
        right: var(--page-padding);
        bottom: 1.25rem;
    }

    .site-footer {
        min-height: 4.5rem;

        padding:
            1.25rem
            var(--page-padding);
    }

    .imprint-main {
        min-height: calc(100svh - 4.5rem);

        align-items: flex-start;

        padding:
            7rem
            var(--page-padding)
            4rem;
    }

    .imprint-heading {
        align-items: flex-start;

        margin-bottom: 3rem;
    }
}


/* --------------------------------------------------
   REDUCED MOTION
-------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {

    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;

        scroll-behavior: auto !important;

        transition-duration: 0.01ms !important;

        transform: none !important;
    }
}