@layer reset, base, components, responsive;

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

  html { scroll-behavior: smooth; }

  body,
  h1,
  h2,
  h3,
  p,
  figure,
  ol,
  ul,
  dd { margin: 0; }

  ol,
  ul { padding: 0; }

  img { max-width: 100%; }

  button,
  a { font: inherit; }

  a { color: inherit; }
}

@layer base {
  :root {
    --navy: #00132a;
    --navy-soft: #062346;
    --blue: #006bb6;
    --button: #006bb6;
    --blue-bright: #3aa9ed;
    --sky: #7dd9ff;
    --ice: #d1f4ff;
    --paper: #f4f7fb;
    --surface: #ffffff;
    --ink: #0b1b2e;
    --ink-soft: #456077;
    --line: rgb(0 19 42 / .16);
    --line-strong: rgb(0 19 42 / .3);
    --shadow: 0 22px 70px rgb(0 19 42 / .14);
    --sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    --page: min(1180px, calc(100% - 3rem));
    --radius: 14px;
    color-scheme: light;
    color: var(--ink);
    font-family: var(--sans);
    font-synthesis: none;
  }

  @media (prefers-color-scheme: dark) {
    :root {
      --paper: #061322;
      --surface: #0b1f35;
      --ink: #f4f9ff;
      --ink-soft: #b8cbe0;
      --blue: #45b8ff;
      --button: #0878cc;
      --line: rgb(209 244 255 / .2);
      --line-strong: rgb(209 244 255 / .38);
      --shadow: 0 22px 70px rgb(0 0 0 / .34);
      color-scheme: dark;
    }
  }

  html,
  body { background: var(--paper); }

  body {
    min-width: 320px;
    overflow-x: hidden;
    color: var(--ink);
    font-size: 1rem;
    line-height: 1.55;
  }

  ::selection { background: var(--sky); color: var(--navy); }

  h1,
  h2,
  h3 {
    font-weight: 700;
    line-height: .98;
    letter-spacing: -.055em;
    text-wrap: balance;
  }

  h1 { max-width: 18ch; font-size: clamp(3.4rem, 4.6vw, 5rem); }
  h2 { max-width: 17ch; font-size: clamp(2.5rem, 5vw, 4.4rem); }
  h3 { font-size: clamp(1.2rem, 2vw, 1.55rem); }
  p { max-width: 66ch; }
  code { font-family: var(--mono); font-size: .88em; overflow-wrap: anywhere; }
  a { text-underline-offset: .2em; }

  :focus-visible {
    outline: 3px solid var(--sky);
    outline-offset: 3px;
    box-shadow: 0 0 0 6px var(--navy);
  }

  main > section {
    width: var(--page);
    margin-inline: auto;
    padding-block: clamp(4.5rem, 9vw, 8rem);
  }

  .eyebrow {
    margin-bottom: 1rem;
    color: var(--blue);
    font-size: .75rem;
    font-weight: 800;
    letter-spacing: .14em;
    line-height: 1.2;
    text-transform: uppercase;
  }

  .section-intro > p:not(.eyebrow) { margin-top: 1.25rem; color: var(--ink-soft); }
}

@layer components {
  .skip-link {
    position: fixed;
    z-index: 20;
    top: .75rem;
    left: .75rem;
    transform: translateY(-160%);
    border-radius: 8px;
    background: var(--navy);
    color: var(--ice);
    padding: .7rem 1rem;
  }

  .skip-link:focus { transform: translateY(0); }

  .site-header {
    position: sticky;
    z-index: 10;
    top: .75rem;
    width: var(--page);
    margin-inline: auto;
    padding-top: .75rem;
  }

  .site-header nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    min-height: 64px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--surface) 88%, transparent);
    box-shadow: 0 10px 35px rgb(0 19 42 / .08);
    padding: .5rem .65rem .5rem 1rem;
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
  }

  .wordmark {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    min-height: 44px;
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: -.03em;
    text-decoration: none;
  }

  .wordmark img { width: 40px; height: 40px; border-radius: 10px; }

  #site-nav {
    display: flex;
    align-items: center;
    gap: .25rem;
  }

  #site-nav a,
  .menu-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    border: 1px solid transparent;
    border-radius: 10px;
    padding: .65rem .85rem;
    color: var(--ink-soft);
    font-size: .92rem;
    font-weight: 700;
    text-decoration: none;
  }

  #site-nav a:hover,
  #site-nav a:focus-visible { border-color: var(--line); color: var(--ink); }

  .menu-button {
    display: none;
    cursor: pointer;
    background: var(--navy);
    color: var(--ice);
  }

  .hero {
    display: grid;
    grid-template-columns: minmax(0, .98fr) minmax(0, 1.02fr);
    align-items: center;
    gap: clamp(2rem, 6vw, 6rem);
    min-height: min(760px, calc(100dvh - 5rem));
    padding-top: clamp(3rem, 6vw, 5.5rem);
  }

  .hero-copy > p:not(.eyebrow) { margin-top: 1.7rem; color: var(--ink-soft); font-size: clamp(1rem, 1.4vw, 1.18rem); }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .8rem 1rem;
  }

  .hero-copy .hero-actions { margin-top: 1.75rem; }

  .button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    border: 1px solid var(--button);
    border-radius: 10px;
    background: var(--button);
    color: #fff;
    padding: .75rem 1.05rem;
    font-weight: 800;
    text-decoration: none;
    transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease;
  }

  .button:hover,
  .button:focus-visible { border-color: var(--navy); background: var(--navy); color: #fff; transform: translateY(-1px); }

  .text-link {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    color: var(--blue);
    font-weight: 800;
  }

  .hero-product { min-width: 0; }

  .product-shot,
  .screen-frame {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
    padding: .65rem;
  }

  .product-shot img,
  .screen-frame img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: calc(var(--radius) - 5px);
  }

  figcaption { margin-top: .65rem; color: var(--ink-soft); font-size: .84rem; }

  .route-visual {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .75rem;
    margin-top: 1rem;
    list-style: none;
  }

  .route-visual li {
    min-width: 0;
    border-left: 2px solid var(--blue);
    padding: .55rem 0 .55rem .8rem;
  }

  .route-visual span { display: block; margin-bottom: .3rem; color: var(--ink-soft); font-size: .75rem; font-weight: 800; text-transform: uppercase; }
  .route-visual code,
  .route-visual strong { display: block; color: var(--ink); font-size: .84rem; overflow-wrap: anywhere; }

  .route-note { margin-top: .8rem; color: var(--ink-soft); font-size: .84rem; }

  .workflow-section,
  .app-preview,
  .features-section,
  .architecture-section,
  .install-section { border-top: 1px solid var(--line); }

  .workflow-section,
  .features-section,
  .architecture-section { display: grid; grid-template-columns: minmax(220px, .68fr) minmax(0, 1.32fr); gap: clamp(2rem, 7vw, 7rem); align-items: start; }

  .workflow-list,
  .feature-list,
  .architecture-points { list-style: none; }

  .workflow-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }

  .workflow-list li { min-height: 170px; border-left: 1px solid var(--line); padding: .1rem 1.2rem 1rem; }
  .workflow-list li:first-child { border-left: 2px solid var(--blue); }
  .workflow-list h3 { margin-bottom: .85rem; }
  .workflow-list p,
  .feature-card p,
  .architecture-points span { color: var(--ink-soft); font-size: .95rem; }

  .app-preview { display: grid; gap: 2.5rem; }
  .screen-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(1rem, 3vw, 2rem); align-items: start; }

  .feature-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); }
  .feature-card { border-left: 1px solid var(--line); padding: 1.2rem 1.2rem 0; }
  .feature-card:first-child { border-left: 2px solid var(--blue); }
  .feature-card h3 { margin-bottom: .8rem; }

  .architecture-points { display: grid; gap: 0; border-top: 1px solid var(--line); }
  .architecture-points li { display: grid; grid-template-columns: minmax(150px, .7fr) 1fr; gap: 1rem; border-bottom: 1px solid var(--line); padding: 1rem 0; }

  .install-section { display: flex; align-items: end; justify-content: space-between; gap: 2rem; }
  .install-section .section-intro { max-width: 60ch; }
  .install-section .button { flex: 0 0 auto; }

  footer {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 1.5rem;
    width: var(--page);
    margin-inline: auto;
    border-top: 1px solid var(--line);
    padding-block: 1.5rem 2.5rem;
    color: var(--ink-soft);
    font-size: .85rem;
  }

  footer .wordmark { color: var(--ink); }
  footer .wordmark img { width: 32px; height: 32px; }
  footer a:hover { color: var(--blue); }
}

@layer responsive {
  @media (max-width: 760px) {
    :root { --page: calc(100% - 2rem); }

    .site-header { top: .5rem; padding-top: .5rem; }
    .site-header nav { flex-wrap: wrap; }
    .menu-button { display: inline-flex; }

    #site-nav {
      display: grid;
      grid-column: 1 / -1;
      gap: .2rem;
      width: 100%;
      padding-top: .35rem;
    }

    .js #site-nav { display: none; }
    .js #site-nav.is-open { display: grid; }
    #site-nav a { justify-content: flex-start; }

    .hero {
      grid-template-columns: 1fr;
      min-height: auto;
      gap: 2.5rem;
      padding-top: 3.5rem;
    }

    h1 { max-width: 15ch; font-size: clamp(3.15rem, 15vw, 4.8rem); }
    h2 { font-size: clamp(2.35rem, 11vw, 3.6rem); }
    .hero-copy > p:not(.eyebrow) { max-width: 48ch; }
    .route-visual { grid-template-columns: 1fr; }
    .workflow-section,
    .features-section,
    .architecture-section { grid-template-columns: 1fr; gap: 2rem; }
    .workflow-list,
    .feature-list,
    .screen-pair { grid-template-columns: 1fr; }
    .workflow-list li,
    .feature-card { border-top: 1px solid var(--line); border-left: 0; padding: 1rem 0; }
    .workflow-list li:first-child,
    .feature-card:first-child { border-left: 0; border-top: 2px solid var(--blue); }
    .architecture-points li { grid-template-columns: 1fr; gap: .25rem; }
    .install-section { display: grid; align-items: start; }
    footer { grid-template-columns: 1fr; gap: .7rem; }
  }

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

    *,
    *::before,
    *::after {
      animation-duration: .001ms !important;
      animation-iteration-count: 1 !important;
      scroll-behavior: auto !important;
      transition-duration: .001ms !important;
    }
  }
}