@layer reset, base, layout, components, utilities;

@font-face {
  font-family: "Literata";
  font-style: normal;
  font-weight: 200 900;
  font-display: swap;
  src: url("fonts/literata-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Literata";
  font-style: italic;
  font-weight: 200 900;
  font-display: swap;
  src: url("fonts/literata-italic.woff2") format("woff2");
}

@font-face {
  font-family: "Archivo";
  font-style: normal;
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-display: swap;
  src: url("fonts/archivo-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Literata Fallback";
  src: local("Georgia"), local("Times New Roman");
  size-adjust: 104.24%;
  ascent-override: 112.91%;
  descent-override: 29.55%;
  line-gap-override: 0%;
}

@font-face {
  font-family: "Literata Fallback";
  font-style: italic;
  src: local("Georgia Italic"), local("Georgia");
  size-adjust: 104.24%;
  ascent-override: 112.91%;
  descent-override: 29.55%;
  line-gap-override: 0%;
}

@font-face {
  font-family: "Archivo Fallback";
  src: local("Arial"), local("Helvetica Neue");
  size-adjust: 99.01%;
  ascent-override: 88.68%;
  descent-override: 21.21%;
  line-gap-override: 0%;
}

:root {
  color-scheme: light;

  --uzh-blue: #0028a5;

  --color-bg: #ffffff;
  --color-bg-tint: #f4f6fb;
  --color-text: #16171c;
  --color-text-muted: #54555f;
  --color-text-muted-strong: #363740;
  --color-accent: var(--uzh-blue);
  --color-accent-strong: #001f80;
  --color-rule: #e3e3e8;
  --color-cta-bg: var(--uzh-blue);
  --color-cta-text: #ffffff;

  --font-serif: "Literata", "Literata Fallback", Georgia, serif;
  --font-sans: "Archivo", "Archivo Fallback", Arial, sans-serif;

  --measure: 66ch;
  --page-max: 68rem;
  --header-h: 4.8rem;
  --snap-offset: 4rem;
  --space-1: 0.375rem;
  --space-2: 0.75rem;
  --space-3: 1.25rem;
  --space-4: 2rem;
  --space-5: 3.25rem;
  --space-6: 5.5rem;

}

@layer reset {
  html {
    box-sizing: border-box;
  }
  *,
  *::before,
  *::after {
    box-sizing: inherit;
  }
  body,
  h1,
  h2,
  h3,
  p,
  ul,
  ol {
    margin: 0;
  }
  svg {
    max-inline-size: 100%;
    block-size: auto;
  }
}

@layer base {
  html {
    scroll-behavior: smooth;
    scroll-padding-block-start: 1.5rem;
  }

  body {
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-serif);
    font-size: 1.0625rem;
    line-height: 1.62;
    font-optical-sizing: auto;
    -webkit-font-smoothing: antialiased;
  }

  h1,
  h2,
  h3 {
    font-family: var(--font-sans);
    font-weight: 600;
    line-height: 1.16;
    letter-spacing: -0.015em;
    text-wrap: balance;
  }

  p,
  li {
    text-wrap: pretty;
  }

  a {
    color: var(--color-accent);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.15em;
  }

  a:hover {
    color: var(--color-accent-strong);
  }

  :focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 2px;
  }

  ::selection {
    background: #ccd6f7;
  }

  strong {
    font-weight: 620;
  }
}

@layer layout {
  .shell {
    inline-size: min(100% - 2.5rem, var(--page-max));
    margin-inline: auto;
  }

  .prose {
    max-inline-size: var(--measure);
  }

  .prose > * + * {
    margin-block-start: var(--space-3);
  }

  .prose :is(h2, h3) + * {
    margin-block-start: var(--space-2);
  }
}

@layer components {
  .skip-link {
    position: absolute;
    inset-inline-start: 1rem;
    inset-block-start: -3.5rem;
    z-index: 20;
    padding: 0.6em 1.1em;
    border-radius: 6px;
    background: var(--color-cta-bg);
    color: var(--color-cta-text);
    font-family: var(--font-sans);
    font-weight: 550;
    text-decoration: none;
  }

  .skip-link:focus-visible {
    inset-block-start: 1rem;
  }

  .site-header {
    border-block-end: 1px solid var(--color-rule);
    background: var(--color-bg);
    font-family: var(--font-sans);
  }

  .site-header .shell {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2) var(--space-4);
    padding-block: var(--space-3);
  }

  .wordmark {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    font-size: 1.3rem;
    font-weight: 650;
    letter-spacing: -0.025em;
    line-height: 1.1;
    color: var(--color-text);
    text-decoration: none;
    white-space: nowrap;
  }

  .wordmark svg {
    inline-size: 2.05rem;
    block-size: 2.05rem;
    flex: none;
    translate: 0 -0.04em;
  }

  .brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  .tagline {
    display: none;
    max-inline-size: 34ch;
    padding-inline-start: 0.75rem;
    border-inline-start: 1px solid var(--color-rule);
    font-size: 0.72rem;
    font-weight: 450;
    line-height: 1.3;
    color: var(--color-text-muted);
    text-wrap: balance;
  }

  @media (min-width: 60rem) {
    .tagline {
      display: block;
    }
  }

  .menu-btn {
    display: none;
  }

  .site-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem 1.25rem;
    margin-inline-start: auto;
    font-size: 0.92rem;
  }

  .site-nav a:not(.btn) {
    color: var(--color-text-muted);
    text-decoration: none;
    padding-block: var(--space-1);
  }

  .site-nav a:not(.btn):hover {
    color: var(--color-accent);
  }

  .site-nav a:not(.btn)[aria-current] {
    color: var(--color-accent);
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 0.45em;
  }

  .rail {
    display: none;
  }

  @media (min-width: 74rem) {
    .rail {
      position: fixed;
      inset-inline-end: clamp(0.75rem, 1.6vw, 1.5rem);
      inset-block-start: 50%;
      translate: 0 -50%;
      z-index: 9;
      display: grid;
      gap: 0.25rem;
      justify-items: center;
    }

    .rail a {
      inline-size: 1.5rem;
      block-size: 1.5rem;
      display: grid;
      place-items: center;
      border-radius: 50%;
    }

    .rail a::before {
      content: "";
      inline-size: 0.5rem;
      block-size: 0.5rem;
      border-radius: 50%;
      border: 1.5px solid var(--color-rule);
      background: var(--color-bg);
      transition: background 0.18s, border-color 0.18s, scale 0.18s;
    }

    .rail a:hover::before {
      border-color: var(--color-accent);
    }

    .rail a[aria-current]::before {
      background: var(--color-accent);
      border-color: var(--color-accent);
      scale: 1.35;
    }
  }

  .to-top {
    position: fixed;
    inset-block-end: 1.25rem;
    inset-inline-end: 1.25rem;
    z-index: 11;
    inline-size: 2.75rem;
    block-size: 2.75rem;
    display: grid;
    place-items: center;
    border-radius: 50%;
    border: 1px solid var(--color-rule);
    background: var(--color-bg);
    color: var(--color-accent);
    box-shadow: 0 2px 12px rgb(0 0 0 / 0.09);
    opacity: 0;
    visibility: hidden;
    translate: 0 0.5rem;
    transition: opacity 0.2s, translate 0.2s, visibility 0.2s, border-color 0.2s;
  }

  .to-top svg {
    inline-size: 1.15rem;
    block-size: 1.15rem;
  }

  .to-top:hover {
    border-color: var(--color-accent);
    color: var(--color-accent-strong);
  }

  :root.is-scrolled .to-top {
    opacity: 1;
    visibility: visible;
    translate: 0 0;
  }

  .btn {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 550;
    line-height: 1.2;
    padding: 0.7em 1.3em;
    border-radius: 6px;
    border: 1.5px solid var(--color-cta-bg);
    background: var(--color-cta-bg);
    color: var(--color-cta-text);
    text-decoration: none;
    text-align: center;
  }

  .btn:hover {
    background: var(--color-accent-strong);
    border-color: var(--color-accent-strong);
  }

  .btn.ghost {
    background: transparent;
    color: var(--color-accent);
  }

  .btn.ghost:hover {
    background: var(--color-bg-tint);
    color: var(--color-accent-strong);
  }

  .site-nav .btn {
    font-size: 0.9rem;
    padding: 0.55em 1.1em;
  }

  .hero {
    position: relative;
    overflow: hidden;
    padding-block: var(--space-6) var(--space-5);
  }

  .hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
      radial-gradient(46rem 34rem at 62% 46%, color-mix(in oklab, var(--color-accent) 15%, transparent), transparent 70%),
      radial-gradient(30rem 26rem at 8% 88%, color-mix(in oklab, var(--color-accent) 10%, transparent), transparent 72%);
  }

  .hero-bg span {
    position: absolute;
    inset-inline-start: 62%;
    inset-block-start: 48%;
    translate: -50% -50%;
    inline-size: clamp(22rem, 58vw, 54rem);
    aspect-ratio: 1;
    border-radius: 50%;
    border: 1.5px solid color-mix(in oklab, var(--color-accent) 42%, transparent);
    opacity: 0;
    animation: hero-ripple 17s linear infinite;
  }

  .hero-bg span:nth-child(2) { animation-delay: -3.4s; }
  .hero-bg span:nth-child(3) { animation-delay: -6.8s; }
  .hero-bg span:nth-child(4) { animation-delay: -10.2s; }
  .hero-bg span:nth-child(5) { animation-delay: -13.6s; }

  @keyframes hero-ripple {
    0%   { transform: scale(0.26); opacity: 0; }
    14%  { opacity: 0.5; }
    70%  { opacity: 0.16; }
    100% { transform: scale(1.22); opacity: 0; }
  }

  :root.is-scrolled .hero-bg span {
    animation-play-state: paused;
  }

  .hero .shell {
    position: relative;
    z-index: 1;
  }

  .hero-panel {
    max-inline-size: 47rem;
    padding: clamp(1.5rem, 1rem + 2.4vw, 3rem);
    border-radius: 20px;
    border: 1px solid color-mix(in oklab, var(--color-accent) 16%, transparent);
    background: color-mix(in oklab, var(--color-bg) 84%, transparent);
    box-shadow: 0 22px 60px color-mix(in oklab, var(--color-accent) 14%, transparent);
  }

  @supports (backdrop-filter: blur(4px)) or (-webkit-backdrop-filter: blur(4px)) {
    .hero-panel {
      background: linear-gradient(
        155deg,
        color-mix(in oklab, var(--color-bg) 9%, transparent),
        color-mix(in oklab, var(--color-bg) 2%, transparent) 62%,
        color-mix(in oklab, var(--color-bg) 5%, transparent));
      -webkit-backdrop-filter: blur(18px) saturate(1.8);
      backdrop-filter: blur(18px) saturate(1.8);
      box-shadow:
        inset 0 1px 0 rgb(255 255 255 / 0.8),
        inset 0 0 0 1px rgb(255 255 255 / 0.3),
        0 26px 70px color-mix(in oklab, var(--color-accent) 18%, transparent);
    }
  }

  .kicker {
    font-family: var(--font-sans);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--color-accent);
  }

  .hero h1 {
    font-size: clamp(2rem, 1.2rem + 3.1vw, 3.2rem);
    font-weight: 620;
    letter-spacing: -0.03em;
    max-inline-size: 22ch;
  }

  .hero .lede {
    margin-block-start: var(--space-3);
    max-inline-size: 58ch;
    font-size: clamp(1.12rem, 1rem + 0.5vw, 1.32rem);
    line-height: 1.55;
    color: var(--color-text-muted-strong);
  }

  .hero .actions {
    margin-block-start: var(--space-4);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2) var(--space-3);
  }

  .band {
    padding-block: var(--space-5);
  }

  main > section.band:nth-of-type(even) {
    background: var(--color-bg-tint);
  }

  .band-head {
    display: grid;
    gap: var(--space-2);
    margin-block-end: var(--space-4);
    max-inline-size: var(--measure);
  }

  .band-head h2 {
    font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.2rem);
    letter-spacing: -0.01em;
  }

  .col-2 h3 {
    font-size: clamp(1.25rem, 1.1rem + 0.6vw, 1.45rem);
    font-weight: 550;
  }

  .band-head .band-intro {
    color: var(--color-text-muted);
    font-size: 1.06rem;
  }

  .col-2 {
    display: grid;
    gap: var(--space-4) var(--space-5);
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr));
    align-items: start;
  }

  .steps {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: step;
    columns: 2 22rem;
    column-gap: var(--space-5);
  }

  .steps li {
    counter-increment: step;
    display: grid;
    grid-template-columns: 2.4rem 1fr;
    gap: var(--space-3);
    break-inside: avoid;
    margin-block-end: var(--space-4);
  }

  .steps li::before {
    content: counter(step);
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.92rem;
    inline-size: 2.1rem;
    block-size: 2.1rem;
    border: 1.5px solid var(--color-accent);
    border-radius: 5px;
    color: var(--color-accent);
    display: grid;
    place-items: center;
  }

  .steps h3 {
    font-size: 1.14rem;
    font-weight: 600;
    margin-block-end: 0.2rem;
  }

  .steps p {
    color: var(--color-text-muted);
    font-size: 1rem;
  }

  .steps li.steps-note {
    counter-increment: none;
    display: block;
    margin-block-end: 0;
  }

  .steps li.steps-note::before {
    content: none;
  }

  .prize {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border: 2px solid var(--color-accent);
    border-radius: 8px;
    background: var(--color-bg);
    font-family: var(--font-sans);
    font-size: clamp(1.05rem, 1rem + 0.35vw, 1.2rem);
    font-weight: 450;
    line-height: 1.45;
  }

  .prize svg {
    inline-size: 1.9rem;
    block-size: 1.9rem;
    flex: none;
    color: var(--color-accent);
  }

  .prize strong {
    font-weight: 650;
    color: var(--color-accent);
    white-space: nowrap;
  }

  .tick-list {
    list-style: none;
    padding: 0;
    display: grid;
    gap: var(--space-2);
    max-inline-size: var(--measure);
  }

  .tick-list li {
    position: relative;
    padding-inline-start: 1.4rem;
  }

  .tick-list li::before {
    content: "";
    position: absolute;
    inset-inline-start: 0;
    inset-block-start: 0.6em;
    inline-size: 0.5rem;
    block-size: 0.5rem;
    border-radius: 1px;
    background: var(--color-accent);
  }

  .contact-card {
    display: grid;
    gap: var(--space-1);
    align-content: start;
  }

  .contact-card .name {
    font-family: var(--font-sans);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.015em;
  }

  .contact-card .role {
    color: var(--color-text-muted);
  }

  .contact-card .links {
    list-style: none;
    padding: 0;
    margin-block-start: var(--space-3);
    font-family: var(--font-sans);
    font-size: 0.96rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.75rem;
  }

  .contact-card .links a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    min-block-size: 1.5rem;
    text-decoration: none;
    color: var(--color-accent);
  }

  .contact-card .links a:hover {
    color: var(--color-accent-strong);
    text-decoration: underline;
    text-underline-offset: 0.2em;
  }

  .contact-card .links svg {
    inline-size: 1.15rem;
    block-size: 1.15rem;
    flex: none;
    opacity: 0.75;
  }

  .site-footer {
    border-block-start: 1px solid var(--color-rule);
    padding-block: var(--space-4);
    font-family: var(--font-sans);
    font-size: 0.88rem;
    color: var(--color-text-muted);
  }

  .site-footer .shell {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2) var(--space-4);
    justify-content: space-between;
  }

  .site-footer nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 1.5rem;
  }

  .doc {
    padding-block: var(--space-5) var(--space-6);
  }

  .doc .shell > * {
    max-inline-size: var(--measure);
  }

  .doc h1 {
    font-size: clamp(1.8rem, 1.3rem + 1.8vw, 2.4rem);
    margin-block-start: var(--space-2);
  }

  .doc h2 {
    font-size: 1.3rem;
    margin-block-start: var(--space-5);
  }

  .doc p {
    margin-block-start: var(--space-3);
  }

  .doc .doc-meta {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--color-text-muted);
  }

  .doc .doc-back {
    margin-block-start: var(--space-5);
    font-family: var(--font-sans);
    font-size: 0.95rem;
  }

  .site-footer a {
    color: inherit;
  }

  .site-footer a:hover {
    color: var(--color-accent);
  }
}

@layer utilities {
  .visually-hidden {
    position: absolute;
    inline-size: 1px;
    block-size: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
}

@media (min-width: 53rem) {
  .site-header {
    position: sticky;
    inset-block-start: 0;
    z-index: 10;
  }

  html {
    scroll-padding-block-start: var(--snap-offset);
  }
}

@media (min-width: 53rem) and (min-height: 48rem) {
  html:has(main > section.band) {
    scroll-snap-type: y mandatory;
  }

  main > section {
    min-block-size: calc(100svh - var(--snap-offset));
    display: flex;
    flex-direction: column;
    justify-content: center;
    scroll-snap-align: start;
    scroll-snap-stop: always;
  }

  main > section:first-child {
    min-block-size: calc(100svh - var(--header-h));
    scroll-margin-block-start: calc(var(--header-h) - var(--snap-offset));
  }

  .site-footer {
    scroll-snap-align: end;
  }
}

html.snap-off:has(main > section.band) {
  scroll-snap-type: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  html:has(main > section.band) {
    scroll-snap-type: none;
  }

  .rail a::before,
  .to-top,
  .menu-btn span {
    transition: none;
  }

  .site-nav.open {
    animation: none;
  }

  .hero-bg span {
    animation: none;
    opacity: 0.4;
  }

  .hero-bg span:nth-child(1) { transform: scale(0.4); }
  .hero-bg span:nth-child(2) { transform: scale(0.6); opacity: 0.32; }
  .hero-bg span:nth-child(3) { transform: scale(0.8); opacity: 0.26; }
  .hero-bg span:nth-child(4) { transform: scale(1); opacity: 0.2; }
  .hero-bg span:nth-child(5) { transform: scale(1.2); opacity: 0.14; }
}

@media (pointer: coarse) {
  .site-nav a:not(.btn) {
    padding-block: 0.55rem;
  }
}

@media (max-width: 40rem) {
  .site-header .shell {
    padding-block: var(--space-2);
  }

  .site-nav {
    inline-size: 100%;
    font-size: 0.9rem;
    gap: 0.35rem 1.1rem;
  }

  .site-nav .btn {
    flex: 1 1 100%;
    text-align: center;
    margin-block-start: var(--space-1);
  }

  html.has-menu .menu-btn {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    margin-inline-start: auto;
    inline-size: 2.75rem;
    block-size: 2.75rem;
    padding: 0.75rem 0.6rem;
    background: none;
    border: 0;
    border-radius: 8px;
    cursor: pointer;
  }

  .menu-btn span {
    display: block;
    block-size: 2px;
    inline-size: 100%;
    border-radius: 1px;
    background: var(--color-text);
    transition: translate 0.15s ease, rotate 0.15s ease, opacity 0.15s ease;
  }

  .menu-btn[aria-expanded="true"] span:nth-child(1) { translate: 0 7px; rotate: 45deg; }
  .menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-btn[aria-expanded="true"] span:nth-child(3) { translate: 0 -7px; rotate: -45deg; }

  html.has-menu .site-nav {
    display: none;
  }

  html.has-menu .site-nav.open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    font-size: 1rem;
    animation: menu-in 0.18s ease;
  }

  .site-nav.open a:not(.btn) {
    padding-block: 0.7rem;
    border-block-start: 1px solid var(--color-rule);
  }

  .site-nav.open .btn {
    margin-block: var(--space-2) var(--space-1);
  }

  @keyframes menu-in {
    from {
      opacity: 0;
      translate: 0 -0.3rem;
    }
  }
}

@media (forced-colors: active) {
  .steps li::before {
    border-color: CanvasText;
  }

  .tick-list li::before {
    background: CanvasText;
  }

  .menu-btn span {
    background: CanvasText;
  }

  .rail a::before {
    border-color: CanvasText;
  }

  .rail a:hover::before {
    border-color: Highlight;
  }

  .rail a[aria-current]::before {
    background: SelectedItem;
    border-color: SelectedItem;
  }

  .hero-bg {
    display: none;
  }

  .hero-panel {
    border: 1px solid CanvasText;
    background: Canvas;
  }
}

@media print {
  .site-header .site-nav,
  .hero .actions,
  .hero-bg,
  .site-footer nav,
  .btn,
  .to-top,
  .rail {
    display: none;
  }

  body {
    font-size: 11pt;
  }

  .band,
  .hero {
    border: none;
    padding-block: 1.5rem;
  }

  main > section.band:nth-of-type(even) {
    background: transparent;
  }

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

  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.85em;
    word-break: break-all;
  }
}