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

@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  body, h1, h2, h3, p, figure { margin: 0; }
  button, input { font: inherit; }
  img, svg { display: block; max-width: 100%; }
  [hidden] { display: none !important; }
}

@layer base {
  :root {
    color-scheme: light;
    --paper: #f5f1e8;
    --ink: #292e2b;
    --muted: #60655e;
    --accent: #8a3b2c;
    --accent-dark: #672b20;
    --rule: #d6d4c8;
    --serif: 'Iowan Old Style', 'Palatino Linotype', 'Book Antiqua', Palatino, Georgia, serif;
    --sans: 'Avenir Next', Avenir, 'Segoe UI', sans-serif;
    --mono: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
  }
  html { scroll-behavior: smooth; scroll-padding-top: 2rem; }
  body { background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
  ::selection { background: #dec3a5; color: #292e2b; }
  a { color: inherit; text-underline-offset: .22em; text-decoration-thickness: 1px; }
  a:hover { color: var(--accent); }
  button { cursor: pointer; }
  button:disabled { cursor: default; }
  a, button, input, summary { -webkit-tap-highlight-color: #8a3b2c20; }
  :focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; border-radius: 2px; }
  main:focus { outline: none; }
  h1, h2, h3 { font-weight: 500; }
  h1, h2 { font-family: var(--serif); letter-spacing: -.045em; }
  h1 { font-size: clamp(3.5rem, 5.8vw, 5.65rem); line-height: 1.06; }
  h2 { font-size: clamp(2.15rem, 3.3vw, 3.15rem); line-height: 1.16; }
  h3 { font-size: 1.2rem; line-height: 1.35; }
  em { font-weight: 400; }
  p { text-wrap: pretty; }
}

@layer layout {
  .site-wrap { max-width: 1440px; margin-inline: auto; padding-inline: clamp(22px, 5.2vw, 76px); }
  .site-header { min-height: 116px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--rule); }
  .site-header nav { display: flex; align-items: center; gap: 32px; }
  .site-header nav a { font-size: .85rem; text-decoration: none; padding-block: 13px; }
  .hero { display: grid; grid-template-columns: 1.08fr 1fr; gap: 54px; align-items: center; padding-block: 64px 56px; }
  .hero-copy { padding-block: 12px; }
  .hero h1 { margin-block: 25px 24px; }
  .hero h1 em { color: var(--accent); }
  .hero-intro { max-width: 460px; font-size: 1.17rem; line-height: 1.65; }
  .hero-context { max-width: 410px; color: var(--muted); font-size: .9rem; margin-top: 17px; }
  .hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 25px; margin-top: 30px; }
  .section { padding-block: 74px; }
  .section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin-bottom: 38px; }
  .section-heading h2 { margin-top: 15px; }
  .section-heading > p { color: var(--muted); font-size: .92rem; padding-bottom: 4px; }
  .essentials-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
  .questions { display: grid; grid-template-columns: .85fr 1.4fr; gap: 80px; border-block: 1px solid var(--rule); }
  .questions-intro h2 { margin-block: 20px 22px; }
  .questions-intro > p:not(.eyebrow) { color: var(--muted); font-size: .93rem; max-width: 300px; }
  .questions-intro .small-note { margin-top: 18px; }
  .questions-content { min-width: 0; }
  .source-row { display: grid; grid-template-columns: 46px 1fr 150px; gap: 25px; padding-block: 30px; border-top: 1px solid var(--rule); }
  .editorial-note { display: grid; grid-template-columns: 1fr 1.4fr 1.4fr; gap: 34px; border-top: 1px solid var(--rule); padding-top: 32px; margin-top: 8px; }
  .editorial-note h3 { font-family: var(--serif); font-size: 1.35rem; }
  .editorial-note p { color: var(--muted); font-size: .83rem; line-height: 1.7; }
  .site-footer { min-height: 115px; display: flex; justify-content: space-between; align-items: center; gap: 24px; border-top: 1px solid var(--rule); font-size: .85rem; }
  .site-footer p { font-family: var(--serif); font-size: 1.1rem; }
  .site-footer p span { font-family: var(--sans); font-size: .76rem; color: var(--muted); margin-left: 20px; }
  .site-footer > div { display: flex; gap: 25px; }
}

@layer components {
  .skip-link { position: fixed; z-index: 10; top: 8px; left: 16px; padding: 12px 20px; background: var(--ink); color: white; transform: translateY(-180%); }
  .skip-link:focus { transform: translateY(0); color: white; }
  .brand { display: inline-flex; align-items: center; gap: 13px; font-family: var(--serif); font-size: 1.55rem; line-height: 1.2; text-decoration: none; letter-spacing: -.03em; }
  .brand-second { font-style: italic; }
  .brand small { display: block; font-family: var(--sans); font-size: .57rem; letter-spacing: .16em; margin-top: 8px; font-weight: 600; }
  .eyebrow { font-family: var(--mono); color: var(--accent); font-size: .64rem; line-height: 1.5; letter-spacing: .11em; font-weight: 500; }
  .little-star { font-size: 1.25rem; display: inline-block; vertical-align: -.1em; margin-right: 8px; }
  .button { display: inline-flex; align-items: center; justify-content: center; gap: 25px; min-height: 51px; padding: 13px 21px; font-size: .85rem; font-weight: 500; border: 1px solid transparent; text-decoration: none; border-radius: 2px; transition: background-color .18s ease, color .18s ease; }
  .button-primary { color: var(--paper); background: var(--accent); }
  .button-primary:hover { background: var(--accent-dark); color: #fff; }
  .button-outline { background: transparent; color: var(--accent); border-color: var(--accent); }
  .button-outline:hover { background: #ead8cb; }
  .text-link { display: inline-flex; align-items: center; gap: 10px; font-size: .84rem; padding-block: 11px; }
  .external-note { color: var(--muted); margin-top: 12px; font-size: .69rem; }
  .hero-art { position: relative; min-width: 0; background: #e8e7dc; border: 1px solid #c9ccbf; padding: 21px 23px 16px; }
  .art-topline, .hero-art figcaption { display: flex; justify-content: space-between; gap: 12px; color: #5c675c; font-family: var(--mono); font-size: .57rem; letter-spacing: .08em; }
  .hero-art img { height: auto; width: 100%; margin-block: 7px 2px; }
  .hero-art figcaption { border-top: 1px solid #c1c7b8; padding-top: 13px; font-size: .52rem; letter-spacing: .03em; }
  .verification-strip { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 20px 0; border-block: 1px solid var(--rule); font-size: .76rem; color: var(--muted); }
  .verification-strip p:first-child { color: var(--ink); display: flex; align-items: center; gap: 9px; }
  .verification-strip time { margin-left: 8px; color: var(--ink); }
  .status-dot { width: 6px; height: 6px; background: #506047; border-radius: 50%; flex-shrink: 0; }
  .essential-card { padding: 4px 34px 0; border-left: 1px solid var(--rule); display: flex; flex-direction: column; align-items: flex-start; }
  .essential-card:first-child { border-left: none; padding-left: 0; }
  .essential-card:last-child { padding-right: 0; }
  .item-number { font-family: var(--mono); color: var(--accent); font-size: .68rem; display: inline-block; margin-bottom: 24px; }
  .essential-card h3 { font-family: var(--serif); font-size: 1.55rem; margin-bottom: 14px; letter-spacing: -.025em; }
  .essential-card p { font-size: .88rem; color: var(--muted); margin-bottom: 20px; max-width: 310px; }
  .note-link { display: inline-flex; gap: 12px; font-size: .73rem; margin-top: auto; padding-block: 8px; }
  .small-note { color: var(--muted); font-size: .76rem !important; line-height: 1.7; }
  .margin-note { display: flex; align-items: center; gap: 15px; margin-top: 33px; color: var(--accent); }
  .margin-note > span { font-size: 2rem; }
  .margin-note p { font-family: var(--serif); font-size: 1.05rem; font-style: italic; line-height: 1.45; }
  .faq-tools > label { display: block; font-size: .78rem; margin-bottom: 9px; }
  .search-field { display: flex; align-items: center; gap: 12px; border: 1px solid #aaa99c; background: #faf7f0; padding-inline: 15px 8px; border-radius: 2px; }
  .search-field:focus-within { outline: 2px solid var(--accent); outline-offset: 2px; }
  .search-field svg { flex-shrink: 0; fill: none; stroke: var(--muted); stroke-width: 1.5; }
  .search-field input { width: 100%; min-width: 0; border: 0; border-radius: 0; padding: 14px 0; background: transparent; color: var(--ink); font-size: .87rem; }
  .search-field input:focus-visible { outline: none; }
  .search-field input::placeholder { color: #696e64; opacity: 1; }
  .search-field button, .subtle-button { border: 0; background: transparent; color: var(--accent); padding: 10px 8px; font-size: .74rem; text-decoration: underline; text-underline-offset: 3px; min-height: 44px; }
  .faq-toolbar { display: flex; justify-content: space-between; gap: 16px; align-items: center; margin-block: 4px 12px; color: var(--muted); font-size: .69rem; }
  .faq { border-top: 1px solid var(--rule); }
  .faq:last-child { border-bottom: 1px solid var(--rule); }
  .faq summary { display: grid; grid-template-columns: 26px 1fr 20px; gap: 14px; align-items: center; padding-block: 23px; list-style: none; cursor: pointer; font-size: .94rem; line-height: 1.5; }
  .faq summary::-webkit-details-marker { display: none; }
  .faq summary:hover { color: var(--accent); }
  .faq-index { font-family: var(--mono); color: var(--muted); font-size: .65rem; }
  .disclosure-icon { position: relative; width: 14px; height: 14px; }
  .disclosure-icon::before, .disclosure-icon::after { content: ''; position: absolute; background: var(--accent); }
  .disclosure-icon::before { width: 12px; height: 1px; top: 6px; left: 1px; }
  .disclosure-icon::after { height: 12px; width: 1px; left: 6px; top: 1px; }
  .faq[open] .disclosure-icon::after { display: none; }
  .faq-answer { padding: 0 35px 24px 40px; font-size: .89rem; color: var(--muted); line-height: 1.75; }
  .source-ref { color: var(--accent); font-size: .7rem; display: inline-block; }
  .faq-answer .source-ref { margin-top: 13px; padding-block: 4px; }
  .empty-state { border-block: 1px solid var(--rule); padding-block: 35px; }
  .empty-state h3 { font-family: var(--serif); font-size: 1.6rem; margin-bottom: 10px; }
  .empty-state p { font-size: .88rem; color: var(--muted); margin-bottom: 20px; }
  .unknown-note { display: grid; grid-template-columns: 48px 1fr auto; align-items: center; gap: 25px; margin-top: 60px; padding: 30px; background: #e9e9df; border-left: 3px solid #69745e; }
  .unknown-symbol { align-self: start; font-family: var(--serif); font-size: 2.5rem; font-style: italic; width: 42px; height: 52px; text-align: center; line-height: 1; color: #59654f; }
  .unknown-note .eyebrow { color: #58634e; }
  .unknown-note h2 { font-size: 1.65rem; margin-top: 8px; margin-bottom: 10px; letter-spacing: -.025em; }
  .unknown-note p:last-child { max-width: 645px; font-size: .84rem; color: var(--muted); }
  .unknown-note .text-link { font-size: .75rem; white-space: nowrap; }
  .source-number { font-family: var(--mono); font-size: .72rem; color: var(--accent); padding-top: 4px; }
  .source-title-line { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }
  .source-title-line h3 { font-family: var(--serif); font-size: 1.55rem; }
  .source-title-line a { text-decoration: none; }
  .source-title-line a span { font-family: var(--sans); font-size: 1rem; margin-left: 6px; }
  .source-tag { color: #59654f; border: 1px solid #c1c7b8; border-radius: 2px; font-family: var(--mono); padding: 3px 7px; font-size: .52rem; letter-spacing: .06em; }
  .source-row p { color: var(--muted); font-size: .85rem; max-width: 660px; margin-block: 10px 8px; }
  .source-domain { font-family: var(--mono); font-size: .66rem; color: var(--muted); overflow-wrap: anywhere; }
  .source-date { text-align: right; padding-top: 3px; }
  .source-date > span { display: block; font-family: var(--mono); color: var(--muted); font-size: .52rem; letter-spacing: .09em; }
  .source-date time { display: block; font-size: .86rem; margin-top: 4px; }
  .source-date small { display: block; color: var(--muted); font-size: .66rem; margin-top: 7px; }
  .closing-note { text-align: center; padding: 53px 25px 58px; border-top: 1px solid var(--rule); }
  .closing-note h2 { font-size: clamp(2.2rem, 3.2vw, 3rem); margin-block: 18px 25px; }
  .closing-note > p:last-child { font-size: .7rem; color: var(--muted); margin-top: 12px; }
  .prose-page { max-width: 720px; margin-inline: auto; padding-block: 80px; }
  .prose-page h1 { font-size: clamp(3rem, 5vw, 4.5rem); margin-block: 20px 25px; }
  .prose-page h2 { font-size: 1.8rem; margin-block: 35px 14px; }
  .prose-page p { color: var(--muted); margin-bottom: 18px; }
  .prose-page .prose-lead { font-size: 1.2rem; color: var(--ink); }
  .error-page { padding: 18vh 25px 60px; }
}

@layer responsive {
  @media (min-width: 1400px) { .hero { gap: 82px; } }
  @media (max-width: 1080px) {
    .hero { gap: 32px; }
    .hero-actions { gap: 12px 18px; }
    .hero-art { padding: 17px; }
    .questions { gap: 40px; grid-template-columns: .8fr 1.2fr; }
    .unknown-note { grid-template-columns: 40px 1fr; }
    .unknown-note > .text-link { grid-column: 2; justify-self: start; }
    .editorial-note { grid-template-columns: 1fr 1.6fr; }
    .editorial-note p:last-child { grid-column: 2; }
    .essential-card { padding-inline: 24px; }
    .site-footer p span { display: block; margin-left: 0; margin-top: 5px; }
  }
  @media (max-width: 760px) {
    .site-header { min-height: 100px; }
    .brand { font-size: 1.35rem; gap: 9px; }
    .brand img { width: 34px; height: 34px; }
    .brand small { font-size: .5rem; }
    .site-header nav { gap: 18px; }
    .site-header nav a { font-size: .73rem; }
    .hero { grid-template-columns: 1fr; padding-block: 42px 32px; gap: 32px; }
    .hero-copy { max-width: 590px; }
    .hero h1 { font-size: clamp(3.6rem, 9vw, 5.5rem); margin-top: 20px; }
    .hero-art { max-width: 530px; width: 100%; justify-self: center; }
    .hero-art img { max-height: 365px; object-fit: contain; }
    .verification-strip { flex-wrap: wrap; gap: 9px 28px; font-size: .71rem; }
    .verification-strip > a { padding-block: 5px; }
    .section { padding-block: 48px; }
    .section-heading { align-items: flex-start; flex-direction: column; gap: 18px; margin-bottom: 27px; }
    .section-heading > p { font-size: .87rem; }
    .desktop-break { display: none; }
    .essentials-grid { grid-template-columns: 1fr; }
    .essential-card, .essential-card:first-child, .essential-card:last-child { border-left: 0; border-top: 1px solid var(--rule); padding: 23px 0; }
    .essential-card:last-child { padding-bottom: 0; }
    .item-number { margin-bottom: 10px; }
    .essential-card h3 { font-size: 1.6rem; }
    .essential-card p { max-width: 560px; margin-bottom: 7px; }
    .questions { grid-template-columns: 1fr; gap: 30px; }
    .questions-intro > p:not(.eyebrow) { max-width: 460px; }
    .questions-intro .margin-note { display: none; }
    .questions-intro h2 br { display: none; }
    .unknown-note { margin-top: 40px; padding: 24px; gap: 14px; grid-template-columns: 30px 1fr; }
    .unknown-symbol { width: 28px; }
    .source-row { grid-template-columns: 25px 1fr; gap: 16px; padding-block: 24px; }
    .source-date { grid-column: 2; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; text-align: left; padding: 0; }
    .source-date time, .source-date small { margin: 0; }
    .source-date small::before { content: '· '; }
    .source-date > span { margin-right: 3px; }
    .editorial-note { grid-template-columns: 1fr; gap: 18px; padding-top: 25px; }
    .editorial-note p:last-child { grid-column: auto; }
    .closing-note { padding-inline: 0; padding-block: 40px; }
    .site-footer { padding-block: 28px; min-height: auto; }
    .site-footer > div { gap: 15px; font-size: .73rem; }
    .prose-page { padding-block: 48px; }
  }
  @media (max-width: 520px) {
    .site-header { flex-wrap: wrap; padding-block: 21px 10px; gap: 12px; }
    .site-header nav { width: 100%; justify-content: space-between; gap: 22px; }
    .site-header nav a { font-size: .78rem; }
    .hero-intro { font-size: 1.05rem; }
    .hero-context { font-size: .84rem; }
    .hero h1 { font-size: clamp(3rem, 11.1vw, 4.5rem); }
    .hero-actions { gap: 12px 18px; }
    .button { font-size: .79rem; }
    .hero-art { padding-inline: 17px; }
    .hero-art img { max-height: 300px; }
    .verification-strip { align-items: flex-start; flex-direction: column; padding-block: 16px; }
    .faq summary { gap: 10px; font-size: .91rem; grid-template-columns: 20px 1fr 16px; }
    .faq-answer { padding-inline: 30px 12px; font-size: .86rem; }
    .unknown-note { padding: 22px 18px; grid-template-columns: 1fr; }
    .unknown-symbol { display: none; }
    .unknown-note > .text-link { grid-column: 1; white-space: normal; }
    .source-title-line { gap: 10px; }
    .source-title-line h3 { font-size: 1.4rem; }
    .source-row { gap: 13px; }
    .site-footer { align-items: flex-start; flex-direction: column; gap: 15px; }
    .site-footer > div { width: 100%; justify-content: space-between; }
  }
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition: none !important; }
  }
  @media print {
    .site-header nav, .hero-actions, .faq-tools, .closing-note, .site-footer, .hero-art, .skip-link { display: none !important; }
    body { background: white; }
    .site-wrap { padding: 0; max-width: none; }
    .hero, .questions { display: block; }
    .hero { padding-block: 24px; }
    .section { padding-block: 30px; }
    .faq-answer { display: block !important; }
    .questions-intro { margin-bottom: 24px; }
    .unknown-note { margin-top: 25px; }
    a { text-decoration: underline; }
  }
}