@layer reset, tokens, base, structure, components, access, print;

@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  html, body, h1, h2, h3, p, ul, dl, dd, figure { margin: 0; }
  button, input, textarea { font: inherit; }
  img { display: block; max-width: 100%; }
  button, summary { -webkit-tap-highlight-color: transparent; }
  [hidden] { display: none !important; }
}

@layer tokens {
  :root {
    color-scheme: dark;
    --canvas: #000000;
    --paper: #121212;
    --raised: #1c1c1e;
    --control: #262626;
    --line: #2a2a2a;
    --ink: #ffffff;
    --muted: #a8a8a8;
    --quiet: #6e6e6e;
    --acid: #e8ff63;
    --acid-pressed: #d4eb4f;
    --pink: #ff5c8a;
    --pink-pressed: #e0447a;
    --lilac: #c9b8ff;
    --round: 38px;
    --body: "Avenir Next", "Segoe UI", Calibri, Candara, sans-serif;
    --display: "Avenir Next", "Segoe UI", Candara, Calibri, sans-serif;
  }
}

@layer base {
  html { background: var(--canvas); scroll-padding-top: 24px; }
  body { background: var(--canvas); color: var(--ink); font: 400 18px/1.5 var(--body); overflow-wrap: break-word; }
  h1, h2, h3 { font-family: var(--display); text-wrap: balance; }
  h1 { font-size: clamp(36px, 6vw, 56px); line-height: 1.08; font-weight: 700; letter-spacing: -.7px; }
  h2 { font-size: clamp(25px, 3vw, 30px); line-height: 1.22; font-weight: 600; letter-spacing: -.35px; }
  p, li, dd { text-wrap: pretty; }
  a { color: var(--lilac); text-decoration-thickness: 1px; text-underline-offset: 5px; }
  button, summary { cursor: pointer; }
  button { border: 0; }
  button:disabled { cursor: default; }
  ul { padding-left: 24px; }
  :where(a, button, summary, input, textarea):focus-visible { outline: 3px solid var(--pink); outline-offset: 5px; }
  ::selection { background: var(--lilac); color: #000; }
}

@layer structure {
  [data-role="masthead"], [data-role="reading"], [data-role="footer"] { width: min(100% - 32px, 720px); margin-inline: auto; }
  [data-role="masthead"] { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding-block: 20px; position: relative; z-index: 2; }
  [data-role="reading"] { padding-bottom: 48px; }
  [data-role="chapter-heading"] { padding: 36px 8px 48px; }
  [data-role="chapter-heading"] h1 { margin-block: 20px 24px; max-width: 18ch; }
  [data-role="lead"] { color: var(--muted); max-width: 62ch; font-size: 20px; line-height: 1.5; }
  [data-role="chapter-section"] { padding: 32px 8px; border-top: 1px solid var(--line); }
  [data-role="chapter-section"] h2 { margin-bottom: 16px; }
  [data-role="chapter-section"] > p { max-width: 66ch; }
  [data-role="answer-list"] { margin-top: 20px; }
  [data-role="answer-list"] li { padding-left: 4px; margin-block: 16px; }
  [data-role="answer-list"] li::marker { color: var(--pink); }
  [data-role="chapter-end"] { margin-top: 32px; padding: 32px 8px 0; border-top: 1px solid var(--line); }
  [data-role="chapter-end"] p { margin-bottom: 20px; color: var(--muted); }
  [data-role="footer"] { border-top: 1px solid var(--line); padding: 32px 8px 40px; color: var(--muted); font-size: 16px; }
  [data-role="footer"] p { max-width: 62ch; }
  [data-role="footer"] nav { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-top: 20px; }
}

@layer components {
  [data-role="home-link"] { display: inline-flex; align-items: center; min-height: 48px; color: var(--ink); font-weight: 600; text-decoration: none; font-size: 17px; }
  [data-role="home-link"]::before { content: ""; width: 8px; height: 8px; background: var(--pink); border-radius: 50%; margin-right: 12px; }
  [data-role="eyebrow"] { color: var(--pink); font-size: 16px; font-weight: 600; letter-spacing: .25px; }
  [data-role="primary"], [data-role="secondary"], [data-role="wink"] {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 52px; padding: 12px 24px;
    border-radius: 999px; text-decoration: none; line-height: 1.3; font-size: 17px; font-weight: 600; text-align: center;
  }
  [data-role="primary"] { background: var(--acid); color: #000; box-shadow: 0 16px 40px -11px rgb(232 255 99 / 50%); }
  [data-role="primary"]:active { background: var(--acid-pressed); }
  [data-role="secondary"] { background: var(--canvas); border: 1px solid #5c5c5c; color: var(--ink); }
  [data-role="secondary"]:hover { background: var(--raised); }
  [data-role="wink"] { color: var(--lilac); background: #21192d; border: 1px solid #483c65; }
  [data-role="wink"]:hover { background: #30243f; }
  [data-role="text-link"] { display: inline-flex; align-items: center; min-height: 48px; padding-block: 10px; }
  [data-role="chapter-index"] { flex: 0 0 auto; }
  [data-role="chapter-index"] > summary { display: flex; align-items: center; justify-content: center; gap: 12px; min-height: 48px; border: 1px solid var(--line); border-radius: 999px; padding: 10px 18px; font-size: 16px; color: var(--ink); list-style: none; }
  summary::-webkit-details-marker { display: none; }
  [data-role="chapter-index"] > summary span { color: var(--pink); }
  [data-role="chapter-index"][open] > summary { background: var(--raised); }
  [data-role="chapter-index"] nav { position: absolute; top: calc(100% - 4px); left: 0; right: 0; padding: 24px; background: var(--paper); border: 1px solid var(--line); border-radius: 28px; max-height: min(80svh, 900px); overflow: auto; }
  [data-role="index-title"] { font-size: 20px; margin-bottom: 16px; color: var(--lilac); }
  [data-role="chapter-index"] ul { list-style: none; padding: 0; }
  [data-role="chapter-index"] li + li { border-top: 1px solid var(--line); }
  [data-role="chapter-index"] nav a { display: flex; flex-direction: column; min-height: 68px; padding: 12px 16px; color: var(--ink); border-radius: 20px; text-decoration: none; }
  [data-role="chapter-index"] nav a:hover { background: var(--control); }
  [data-role="chapter-index"] nav [aria-current="page"] { border-left: 3px solid var(--pink); background: var(--raised); }
  [data-role="chapter-note"] { color: var(--muted); font-size: 16px; }
  [data-role="opening-card"] { min-height: 584px; position: relative; isolation: isolate; border-radius: var(--round); overflow: hidden; display: flex; align-items: flex-end; background: radial-gradient(ellipse at 80% 0%, #292030, transparent 57%), linear-gradient(165deg, #1c1c1e, #121212 65%); }
  [data-role="opening-card"]::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, transparent, rgb(0 0 0 / 15%) 25%, rgb(0 0 0 / 72%) 62%, #000 100%); }
  [data-role="atmosphere"] { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
  [data-image-missing="true"] { visibility: hidden; }
  [data-role="opening-copy"] { padding: 36px; width: 100%; background-color: var(--paper); }
  [data-role="opening-copy"] h1 { font-size: clamp(38px, 6vw, 59px); margin-block: 20px; max-width: 17ch; }
  [data-role="opening-copy"] > p:not([data-role]) { max-width: 54ch; font-size: 20px; }
  [data-role="chips"] { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; list-style: none; margin-top: 24px; }
  [data-role="chips"] li { background: #1c1c1e; border: 1px solid #4a4a4a; border-radius: 999px; font-size: 16px; padding: 8px 16px; min-height: 44px; }
  [data-role="chips"] li:first-child { color: #ff8baa; background: #2b101a; border-color: #5a293a; }
  [data-role="chips"] li:last-child { color: var(--lilac); }
  [data-role="action-row"] { display: flex; align-items: center; justify-content: center; gap: 22px; padding-block: 28px 40px; }
  [data-role="action-row"] [data-role="primary"] { min-height: 60px; padding-inline: 28px; }
  [data-role="route-list"] { list-style: none; padding: 0; margin-top: 24px; }
  [data-role="route-list"] li + li { margin-top: 12px; }
  [data-role="route-list"] a { display: flex; flex-direction: column; gap: 8px; padding: 24px; background: var(--paper); border: 1px solid var(--line); border-radius: 28px; min-height: 100px; color: var(--ink); text-decoration: none; font-size: 22px; line-height: 1.3; }
  [data-role="route-list"] a:hover { background: var(--raised); }
  [data-role="route-label"] { color: var(--lilac); font-size: 16px; }
  [data-role="terms"] { border-radius: 28px; background: var(--paper); padding: 8px 24px; margin: 0 8px 32px; }
  [data-role="term"] { padding-block: 24px; }
  [data-role="term"] + [data-role="term"] { border-top: 1px solid var(--line); }
  dt { color: var(--lilac); font-size: 22px; line-height: 1.3; font-weight: 600; margin-bottom: 12px; }
  dd { font-size: 18px; line-height: 1.5; }
  [data-role="source-drawer"] { margin: 16px 8px 0; border: 1px solid #3f3f3f; border-radius: 28px; background: var(--paper); }
  [data-role="source-drawer"] summary { list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; padding: 20px 24px; color: var(--lilac); font-size: 18px; }
  [data-role="source-drawer"][open] summary span { transform: rotate(45deg); }
  [data-role="drawer-body"] { padding: 0 24px 20px; }
  [data-role="drawer-body"] p { color: var(--muted); margin-bottom: 12px; }
  [data-role="drawer-body"] ul { list-style: none; padding: 0; }
  [data-role="drawer-body"] a { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 48px; padding-block: 12px; font-size: 16px; }
  [data-role="drawer-body"] li + li { border-top: 1px solid var(--line); }
  [data-role="worksheet"] { margin-top: 24px; padding: 24px; background: var(--paper); border: 1px solid var(--line); border-radius: 28px; }
  fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
  legend { color: var(--lilac); font-weight: 600; font-size: 22px; padding: 0 0 12px; }
  [data-role="amount-field"] { display: flex; flex-direction: column; gap: 12px; padding-block: 20px; border-bottom: 1px solid var(--line); }
  label { display: block; font-weight: 600; font-size: 18px; }
  [data-role="field-hint"] { display: block; font-weight: 400; font-size: 16px; color: var(--muted); }
  input, textarea { width: 100%; border: 1px solid #6e6e6e; background: var(--raised); color: var(--ink); border-radius: 24px; min-height: 52px; padding: 12px 20px; font-size: 18px; }
  textarea { resize: vertical; line-height: 1.5; }
  #worksheet-note { margin-top: 20px; font-size: 16px; color: var(--muted); }
  [data-role="worksheet-actions"] { display: flex; flex-direction: column; align-items: flex-start; gap: 16px; margin-top: 24px; }
  [data-role="worksheet-output"] { border-left: 3px solid var(--pink); padding: 12px 0 12px 20px; margin-block: 32px; }
  #cost-gaps:not(:empty) { margin-top: 12px; color: var(--muted); }
  [data-role="notes-label"] { margin-bottom: 12px; color: var(--lilac); }
  #print-questions { margin-top: 24px; }
  [data-role="print-copy"] { display: none; }
  @media (max-width: 560px) {
    [data-role="masthead"] { padding-block: 16px; gap: 8px; }
    [data-role="home-link"] { font-size: 16px; }
    [data-role="home-link"]::before { margin-right: 8px; }
    [data-role="chapter-index"] > summary { padding-inline: 12px; gap: 8px; }
    [data-role="chapter-index"] nav { padding: 16px; }
    [data-role="opening-card"] { min-height: 520px; border-radius: 32px; }
    [data-role="opening-copy"] { padding: 24px; }
    [data-role="opening-copy"] > p:not([data-role]) { font-size: 18px; }
    [data-role="opening-copy"] h1 { font-size: 40px; }
    [data-role="opening-copy"] [data-role="eyebrow"] { max-width: 24ch; }
    [data-role="chips"] li { padding-inline: 12px; }
    [data-role="action-row"] { gap: 12px; padding-block: 24px 36px; }
    [data-role="action-row"] a { padding: 12px; font-size: 16px; }
    [data-role="action-row"] [data-role="primary"] { flex: 1; padding-inline: 16px; }
    [data-role="chapter-heading"] { padding: 24px 8px 40px; }
    [data-role="chapter-heading"] h1 { font-size: 38px; }
    [data-role="lead"] { font-size: 18px; }
    [data-role="terms"] { padding-inline: 20px; }
    [data-role="worksheet"] { padding: 20px; }
    [data-role="worksheet-actions"] { align-items: stretch; }
    [data-role="footer"] nav { flex-direction: column; align-items: flex-start; gap: 0; }
  }
}

@layer access {
  [data-role="skip"] { position: fixed; z-index: 10; top: 8px; left: 8px; transform: translateY(-200%); background: var(--lilac); color: #000; padding: 12px 20px; min-height: 48px; border-radius: 999px; font-size: 16px; }
  [data-role="skip"]:focus { transform: none; }
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
  }
}

@layer print {
  @media print {
    body[data-print-worksheet] [data-role="masthead"], body[data-print-worksheet] [data-role="footer"], body[data-print-worksheet] [data-role="chapter-heading"], body[data-print-worksheet] [data-role="terms"], body[data-print-worksheet] [data-role="source-drawer"], body[data-print-worksheet] [data-role="chapter-end"] { display: none; }
    body[data-print-worksheet] [data-role="chapter-section"]:not(:has([data-role="worksheet"])) { display: none; }
    body[data-print-worksheet] [data-role="worksheet-actions"], body[data-print-worksheet] #print-questions { display: none; }
    body[data-print-worksheet] [data-role="reading"] { width: 100%; }
    body[data-print-worksheet] [data-role="worksheet"] { border: 0; padding: 16px; }
    body[data-print-worksheet] [data-role="worksheet"] textarea { min-height: 320px; }
    body[data-print-worksheet] #cost-questions { display: none; }
    body[data-print-worksheet] [data-role="print-copy"] { display: block; white-space: pre-wrap; overflow-wrap: anywhere; font: inherit; }
    a { box-shadow: none !important; }
  }
}