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

@layer reset {
  html {
    box-sizing: border-box;
  }

  body,
  header,
  main,
  footer,
  section,
  article,
  nav,
  div,
  a,
  ul,
  li,
  img {
    box-sizing: inherit;
  }

  body,
  h1,
  h2,
  p,
  ul {
    margin: 0;
  }

  ul {
    padding: 0;
    list-style: none;
  }

  img {
    display: block;
    max-inline-size: 100%;
  }

  a {
    color: inherit;
  }
}

@layer base {
  :root {
    color-scheme: light;
    --paper: #f5f7fc;
    --surface: #ffffff;
    --ink: #101526;
    --blue: #2146d9;
    --blue-dark: #1734a5;
    --muted: #5c6374;
    --line: #ccd3e3;
    --display: "Arial Black", "Arial Bold", Arial, sans-serif;
    --body:
      system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --utility:
      ui-monospace, "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
    --shell: 72rem;
  }

  html {
    scroll-behavior: smooth;
    background: var(--paper);
  }

  body {
    min-block-size: 100dvh;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--body);
    font-size: 1rem;
    line-height: 1.5;
    text-rendering: optimizeLegibility;
  }

  a {
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.2em;
  }

  :focus-visible {
    outline: 0.2rem solid var(--blue);
    outline-offset: 0.2rem;
  }

  ::selection {
    background: var(--blue);
    color: var(--surface);
  }
}

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

  .site-header {
    border-block-end: 0.0625rem solid var(--line);
  }

  .header-inner,
  .footer-inner,
  .contact-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
  }

  .header-inner {
    min-block-size: 5rem;
  }

  .hero {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(21rem, 0.92fr);
    min-block-size: min(49rem, calc(100dvh - 5rem));
  }

  .intro,
  .link-board {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-block: clamp(4rem, 8vw, 8rem);
  }

  .intro {
    padding-inline-end: clamp(2rem, 6vw, 6rem);
  }

  .link-board {
    border-inline-start: 0.0625rem solid var(--line);
    padding-inline-start: clamp(2rem, 5vw, 5rem);
  }

  .contact {
    border-block: 0.0625rem solid var(--line);
    background: var(--surface);
  }

  .contact-inner {
    min-block-size: 13rem;
    padding-block: 2.5rem;
  }

  .site-footer {
    background: var(--ink);
    color: var(--surface);
  }

  .footer-inner {
    min-block-size: 6rem;
    font-size: 0.8125rem;
  }
}

@layer components {
  .skip-link {
    position: fixed;
    inset-block-start: 0.75rem;
    inset-inline-start: 0.75rem;
    z-index: 10;
    translate: 0 -200%;
    padding: 0.75rem 1rem;
    background: var(--surface);
    color: var(--ink);
    font-weight: 800;
  }

  .skip-link:focus {
    translate: 0;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    min-block-size: 2.75rem;
    font-family: var(--display);
    font-size: 1rem;
    letter-spacing: -0.025em;
    text-decoration: none;
  }

  .header-nav,
  .site-footer nav {
    display: flex;
    align-items: center;
    gap: clamp(1rem, 3vw, 2.25rem);
  }

  .header-nav a {
    min-block-size: 2.75rem;
    align-content: center;
    color: var(--muted);
    font-size: 0.875rem;
    font-weight: 750;
    text-decoration: none;
  }

  .header-nav a:hover {
    color: var(--ink);
  }

  .kicker,
  .section-heading span {
    color: var(--muted);
    font-family: var(--utility);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  h1 {
    margin-block-start: 1.25rem;
    text-wrap: balance;
  }

  h1 > span {
    display: block;
    max-inline-size: 24ch;
    font-size: clamp(1.35rem, 1rem + 1vw, 2rem);
    font-weight: 760;
    letter-spacing: -0.035em;
    line-height: 1.05;
  }

  h1 > strong {
    display: block;
    margin-block-start: 0.2em;
    color: var(--blue);
    font-family: var(--display);
    font-size: clamp(5.5rem, 3.5rem + 9vw, 11rem);
    letter-spacing: -0.09em;
    line-height: 0.78;
  }

  .intro-copy {
    max-inline-size: 37ch;
    margin-block-start: clamp(2.5rem, 6vw, 4.5rem);
    color: var(--muted);
    font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    text-wrap: pretty;
  }

  .actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-block-start: 2rem;
  }

  .button {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    min-block-size: 3.25rem;
    padding-inline: 1.1rem;
    border: 0.125rem solid var(--ink);
    font-size: 0.875rem;
    font-weight: 800;
    text-decoration: none;
  }

  .button-primary {
    border-color: var(--blue);
    background: var(--blue);
    color: var(--surface);
  }

  .button-primary:hover {
    border-color: var(--blue-dark);
    background: var(--blue-dark);
  }

  .button-secondary:hover {
    background: var(--ink);
    color: var(--surface);
  }

  .section-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    padding-block-end: 1.1rem;
    border-block-end: 0.125rem solid var(--ink);
  }

  .section-heading h2 {
    font-size: 1rem;
    letter-spacing: -0.025em;
  }

  .platform-list a {
    display: grid;
    grid-template-columns: minmax(7.5rem, 1fr) minmax(8rem, 1.2fr) auto;
    align-items: center;
    gap: 1rem;
    min-block-size: 4.25rem;
    border-block-end: 0.0625rem solid var(--line);
    text-decoration: none;
  }

  .platform-list a:hover strong {
    color: var(--blue);
  }

  .platform-list strong {
    font-size: 0.95rem;
  }

  .platform-list span {
    overflow-wrap: anywhere;
    color: var(--muted);
    font-family: var(--utility);
    font-size: 0.75rem;
  }

  .platform-list i {
    color: var(--blue);
    font-style: normal;
    transition: translate 140ms ease;
  }

  .platform-list a:hover i {
    translate: 0.2rem -0.2rem;
  }

  .contact h2 {
    max-inline-size: 26ch;
    margin-block-start: 0.65rem;
    font-size: clamp(1.5rem, 1.1rem + 1.2vw, 2.25rem);
    letter-spacing: -0.045em;
    line-height: 1.1;
    text-wrap: balance;
  }

  .contact-inner > a {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    min-block-size: 3rem;
    color: var(--blue);
    font-size: clamp(1rem, 0.9rem + 0.5vw, 1.35rem);
    font-weight: 800;
  }

  .site-footer a {
    min-block-size: 2.75rem;
    align-content: center;
    color: #dce2f2;
  }

  .legal-main {
    padding-block: clamp(4rem, 9vw, 8rem);
  }

  .legal-main article {
    max-inline-size: 46rem;
  }

  .legal-main h1 {
    max-inline-size: 14ch;
    margin-block-start: 0.75rem;
    font-family: var(--display);
    font-size: clamp(2.6rem, 1.8rem + 4vw, 5.5rem);
    letter-spacing: -0.075em;
    line-height: 0.95;
  }

  .legal-main h2 {
    margin-block-start: 2.75rem;
    padding-block-start: 1rem;
    border-block-start: 0.0625rem solid var(--line);
    font-size: 1.125rem;
    letter-spacing: -0.025em;
  }

  .legal-main p {
    max-inline-size: 68ch;
    margin-block-start: 0.9rem;
    color: var(--muted);
    text-wrap: pretty;
  }

  .legal-main .legal-warning {
    margin-block: 2rem 0;
    padding: 1rem;
    border-inline-start: 0.25rem solid var(--blue);
    background: var(--surface);
    color: var(--ink);
  }

  .back-link {
    display: inline-flex;
    min-block-size: 2.75rem;
    align-items: center;
    margin-block-start: 3rem;
    color: var(--blue);
    font-weight: 800;
  }
}

@layer utilities {
  @media (max-width: 50rem) {
    .shell {
      inline-size: min(calc(100% - 2rem), var(--shell));
    }

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

    .intro {
      min-block-size: calc(100dvh - 5rem);
      padding-inline-end: 0;
    }

    .link-board {
      border-block-start: 0.0625rem solid var(--line);
      border-inline-start: 0;
      padding-inline-start: 0;
    }

    .contact-inner,
    .footer-inner {
      align-items: flex-start;
      flex-direction: column;
      justify-content: center;
    }

    .footer-inner {
      padding-block: 1.5rem;
    }

    .site-footer nav {
      align-items: flex-start;
      flex-direction: column;
      gap: 0;
    }
  }

  @media (max-width: 28rem) {
    .header-nav {
      gap: 0.75rem;
    }

    .platform-list a {
      grid-template-columns: 1fr auto;
    }

    .platform-list span {
      grid-column: 1;
      grid-row: 2;
      margin-block-start: -1rem;
      padding-block-end: 0.8rem;
    }

    .platform-list i {
      grid-column: 2;
      grid-row: 1 / 3;
    }

    .actions,
    .button {
      inline-size: 100%;
    }
  }

  @media (pointer: coarse) {
    .header-nav a,
    .platform-list a,
    .site-footer a {
      min-block-size: 3rem;
    }
  }

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

    .platform-list i {
      transition: none;
    }
  }

  @media (forced-colors: active) {
    .button,
    .legal-warning {
      border-color: ButtonText;
    }
  }
}