@layer reset, tokens, base, components, utilities, responsive;

@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body, h1, h2, h3, p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
  img { display: block; max-width: 100%; }
  button, a { font: inherit; }
}

@layer tokens {
  :root {
    --graphite: #202A31;
    --ink: #172027;
    --slate: #52616A;
    --sky: #D7E7ED;
    --rust: #A84424;
    --paper: #F5F1E8;
    --pale: #EBE3D3;
    --white: #FFFDF8;
    --rule: #9AA7AD;
    --serif: Georgia, "Times New Roman", serif;
    --sans: "Segoe UI", Arial, sans-serif;
    --max: 76rem;
    --pad: clamp(1rem, 4vw, 3.25rem);
    --step--1: clamp(.78rem, .74rem + .18vw, .9rem);
    --step-0: clamp(1rem, .95rem + .25vw, 1.12rem);
    --step-1: clamp(1.25rem, 1.12rem + .65vw, 1.65rem);
    --step-2: clamp(1.65rem, 1.35rem + 1.5vw, 2.6rem);
    --step-3: clamp(2.4rem, 1.65rem + 3.6vw, 5.25rem);
  }
}

@layer base {
  html { background: var(--paper); color: var(--ink); }
  body { min-width: 20rem; background: var(--paper); font-family: var(--serif); font-size: var(--step-0); line-height: 1.65; }
  a { color: currentColor; text-decoration-color: var(--rust); text-decoration-thickness: .12em; text-underline-offset: .18em; }
  a:hover { color: var(--rust); }
  :focus-visible { outline: .2rem solid var(--rust); outline-offset: .22rem; }
  h1, h2, h3 { font-family: var(--serif); line-height: 1.08; text-wrap: balance; }
  h1 { font-size: var(--step-3); font-weight: 500; letter-spacing: -.035em; }
  h2 { font-size: var(--step-2); font-weight: 500; }
  h3 { font-size: var(--step-1); }
  p { max-width: 70ch; }
  ul, ol { padding-left: 1.25rem; }
  button { color: inherit; }
}

@layer components {
  .skip-link { position: fixed; left: 1rem; top: 1rem; z-index: 20; padding: .7rem 1rem; background: var(--ink); color: var(--white); transform: translateY(-180%); }
  .skip-link:focus { transform: none; }
  .site-header { border: .08rem solid var(--graphite); margin: .8rem; background: var(--paper); }
  .masthead { max-width: var(--max); margin-inline: auto; padding: 1.15rem var(--pad) .9rem; display: grid; grid-template-columns: minmax(10rem, 1fr) auto; gap: 1rem; align-items: end; }
  .wordmark { text-decoration: none; display: inline-block; font-size: clamp(2rem, 4vw, 4rem); line-height: .88; letter-spacing: -.045em; }
  .descriptor { display: block; margin-top: .45rem; font-family: var(--sans); font-size: var(--step--1); letter-spacing: .08em; text-transform: uppercase; color: var(--slate); }
  .issue { font-family: var(--sans); font-size: var(--step--1); text-align: right; color: var(--slate); }
  .nav-toggle { display: none; min-width: 2.75rem; min-height: 2.75rem; border: .08rem solid var(--graphite); background: transparent; }
  .site-nav { border-top: .08rem solid var(--graphite); }
  .site-nav ul { max-width: var(--max); margin-inline: auto; padding: 0 var(--pad); display: flex; flex-wrap: wrap; list-style: none; }
  .site-nav a { display: block; min-height: 2.75rem; padding: .72rem 1rem .65rem 0; margin-right: 1.2rem; font-family: var(--sans); font-size: var(--step--1); text-decoration: none; }
  .site-nav a[aria-current="page"] { color: var(--rust); box-shadow: inset 0 -.22rem 0 var(--rust); }
  .shell { width: min(var(--max), 100%); margin-inline: auto; padding-inline: var(--pad); }
  .hero { padding-block: clamp(4rem, 10vw, 8rem) clamp(3rem, 7vw, 6rem); display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(15rem, .65fr); gap: clamp(2rem, 7vw, 7rem); align-items: end; }
  .eyebrow, .chapter, .meta, .evidence { font-family: var(--sans); font-size: var(--step--1); letter-spacing: .09em; text-transform: uppercase; }
  .eyebrow, .chapter { color: var(--rust); }
  .hero h1 { max-width: 13ch; margin-block: .7rem 1.25rem; }
  .hero-note { border-left: .18rem solid var(--rust); padding-left: 1rem; }
  .hero-note p + p { margin-top: 1rem; }
  .text-link { display: inline-block; margin-top: 1.35rem; font-family: var(--sans); font-weight: 650; }
  .band { border-top: .08rem solid var(--rule); padding-block: clamp(3.5rem, 7vw, 6rem); }
  .band.sky { width: 100%; max-width: none; background: var(--sky); }
  .band.dark { width: 100%; max-width: none; background: var(--graphite); color: var(--white); border-color: transparent; }
  .section-head { display: grid; grid-template-columns: 7rem minmax(0, 1fr); gap: 1rem; margin-bottom: clamp(2rem, 4vw, 3.5rem); }
  .section-head p { max-width: 48rem; margin-top: .8rem; }
  .review-list { border-top: .08rem solid var(--graphite); }
  .review-row { display: grid; grid-template-columns: 6rem minmax(10rem, .65fr) minmax(16rem, 1.35fr); gap: clamp(1rem, 3vw, 2.5rem); padding-block: 1.6rem; border-bottom: .08rem solid var(--graphite); align-items: start; }
  .review-number { font-family: var(--sans); font-size: var(--step-2); color: var(--rust); line-height: 1; }
  .review-row h3 { margin-bottom: .65rem; }
  .review-row .meta { color: var(--slate); line-height: 1.5; }
  .review-row p + p { margin-top: .8rem; }
  .review-links { font-family: var(--sans); font-size: var(--step--1); }
  .purchase-block { display: flex; flex-wrap: wrap; gap: .75rem 1rem; align-items: center; margin-top: 1rem; }
  .purchase-block p { display: grid; gap: .15rem; }
  .price { font-family: var(--sans); font-size: var(--step-1); font-weight: 750; line-height: 1.2; }
  .price-note { display: block; max-width: 46rem; color: var(--slate); font-family: var(--sans); font-size: .8rem; line-height: 1.45; }
  .amazon-button { display: inline-flex; align-items: center; justify-content: center; min-height: 2.9rem; padding: .7rem 1rem; border: .08rem solid var(--rust); background: var(--rust); color: var(--white); font-family: var(--sans); font-weight: 750; text-decoration: none; }
  .amazon-button:hover { border-color: var(--ink); background: var(--ink); color: var(--white); }
  .external::after { content: " ↗"; display: inline-block; transition: transform .18s ease; }
  .external:hover::after { transform: translate(.18rem, -.18rem); }
  .split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(2rem, 6vw, 6rem); }
  .split > * { min-width: 0; }
  .split h3 { margin-bottom: .8rem; }
  .split p + p, .prose p + p { margin-top: 1.15rem; }
  .map-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: .08rem solid currentColor; border-left: .08rem solid currentColor; }
  .map-item { padding: 1.2rem; border-right: .08rem solid currentColor; border-bottom: .08rem solid currentColor; }
  .map-item span { display: block; font-family: var(--sans); font-size: var(--step--1); color: var(--rust); margin-bottom: .6rem; }
  .notice { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(2rem, 6vw, 6rem); align-items: start; }
  .notice strong { font-family: var(--sans); }
  .site-footer { background: var(--ink); color: var(--white); padding: 3rem var(--pad); }
  .footer-inner { max-width: var(--max); margin-inline: auto; display: grid; grid-template-columns: minmax(14rem, .75fr) minmax(18rem, 1.25fr); gap: 2.5rem; }
  .footer-links { display: flex; flex-wrap: wrap; gap: .75rem 1.2rem; font-family: var(--sans); font-size: var(--step--1); }
  .footer-small { margin-top: 1rem; color: var(--pale); font-size: .88rem; }
  .page-hero { padding-block: clamp(3.5rem, 8vw, 7rem) 3rem; border-bottom: .08rem solid var(--rule); }
  .page-hero h1 { max-width: 18ch; margin-block: .75rem 1rem; }
  .breadcrumb { font-family: var(--sans); font-size: var(--step--1); margin-bottom: 2rem; }
  .book-sheet { padding-block: clamp(3rem, 7vw, 6rem); display: grid; grid-template-columns: minmax(15rem, .7fr) minmax(0, 1.3fr); gap: clamp(2.5rem, 8vw, 7rem); align-items: start; }
  .book-aside { position: sticky; top: 1rem; }
  .cover-placeholder { aspect-ratio: 3 / 4; width: min(100%, 24rem); background: var(--sky); border: .08rem solid var(--graphite); padding: clamp(1.2rem, 3vw, 2.2rem); display: flex; flex-direction: column; justify-content: space-between; box-shadow: 1rem 1rem 0 var(--pale); }
  .cover-placeholder strong { font-size: var(--step-2); line-height: 1.05; }
  .cover-placeholder span { font-family: var(--sans); font-size: var(--step--1); }
  .facts { margin-top: 2.2rem; border-top: .08rem solid var(--rule); }
  .facts div { padding-block: .75rem; border-bottom: .08rem solid var(--rule); }
  .facts dt { font-family: var(--sans); font-size: var(--step--1); color: var(--slate); }
  .facts dd { margin-top: .15rem; }
  .evidence { display: inline-block; margin-bottom: 1.4rem; padding: .35rem .55rem; border: .08rem solid var(--rust); color: var(--rust); }
  .review-body section + section { margin-top: 3.4rem; padding-top: 2.3rem; border-top: .08rem solid var(--rule); }
  .review-body h2 { margin-bottom: 1.25rem; }
  .dimension-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; margin-top: 1.5rem; }
  .dimension { padding: 1rem; border-top: .25rem solid var(--rust); background: var(--white); }
  .amazon-panel { background: var(--graphite); color: var(--white); padding: 1.5rem; margin-top: 2.4rem; }
  .amazon-panel p + p { margin-top: .8rem; }
  .amazon-panel .price-note { color: var(--pale); }
  .amazon-panel .amazon-button { color: var(--white); }
  .sources { font-size: .94rem; }
  .related { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
  .related a { min-height: 8rem; border: .08rem solid var(--rule); padding: 1rem; text-decoration: none; }
  .legal-grid { padding-block: clamp(3rem, 7vw, 6rem); display: grid; grid-template-columns: 15rem minmax(0, 1fr); gap: clamp(2rem, 7vw, 6rem); }
  .legal-index { position: sticky; top: 1rem; align-self: start; font-family: var(--sans); font-size: var(--step--1); }
  .legal-index a { display: block; padding-block: .4rem; }
  .legal-copy section + section { margin-top: 3rem; padding-top: 2rem; border-top: .08rem solid var(--rule); }
  .legal-copy h2 { margin-bottom: 1rem; }
  .placeholder { display: inline-block; padding: .08rem .35rem; background: #F8D8CE; color: #6D1C09; font-family: var(--sans); font-weight: 700; }
  .back-top { margin-top: 2rem; font-family: var(--sans); font-size: var(--step--1); }
}

@layer responsive {
  @media (max-width: 760px) {
    .site-header { margin: .4rem; }
    .masthead { grid-template-columns: 1fr auto; align-items: center; }
    .issue { display: none; }
    .nav-toggle { display: inline-grid; place-items: center; }
    .site-nav { display: none; }
    .site-nav[data-open="true"] { display: block; }
    .site-nav ul { display: block; padding-block: .3rem; }
    .site-nav a { width: 100%; margin: 0; padding: .8rem 0; }
    .hero, .notice, .footer-inner, .book-sheet, .legal-grid { grid-template-columns: 1fr; }
    .hero { align-items: start; }
    .section-head { grid-template-columns: 3.5rem minmax(0, 1fr); }
    .review-row { grid-template-columns: 3.5rem minmax(0, 1fr); }
    .review-row > :last-child { grid-column: 2; }
    .split, .dimension-grid { grid-template-columns: 1fr; }
    .map-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .book-aside, .legal-index { position: static; }
    .related { grid-template-columns: 1fr; }
  }

  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  }
}