@layer vendor, reset, tokens, base, page-foundation, shell, components, utilities, motion, responsive, page-layout;

@layer page-foundation {
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; overflow-x: hidden; }
  body {
    margin: 0; overflow-x: hidden; background: var(--pm-canvas);
    color: var(--pm-foreground); font-family: var(--pm-font-sans);
    font-size: var(--pm-type-body); line-height: 1.7; -webkit-font-smoothing: antialiased;
  }
  :root { --pm-accent-light: #e06c6b; --pm-muted: var(--pm-foreground-muted); }
  h1, h2, h3, p { margin-top: 0; }
  h1, h2, h3 { font-family: var(--pm-font-display); line-height: 1.08; letter-spacing: -0.04em; }
  a { color: inherit; }
  button, summary { font: inherit; }
  img { display: block; max-width: 100%; }
  [id] { scroll-margin-top: 104px; }
  .skip-link {
    position: fixed; top: 12px; left: 12px; z-index: 2000;
    padding: 12px 18px; border-radius: var(--pm-radius-sm);
    background: #fff; color: #050505; font-weight: 800; text-decoration: none;
    transform: translateY(-160%); transition: transform var(--pm-motion-fast) ease;
  }
  .skip-link:focus { transform: translateY(0); }
  a:focus-visible, button:focus-visible, summary:focus-visible, [tabindex]:focus-visible {
    outline: 3px solid #f4c46a; outline-offset: 4px;
  }
  #navbar { position: fixed; inset: 0 0 auto; z-index: 1000; }
  .nav-container {
    position: relative; margin-inline: auto; display: flex;
    align-items: center; justify-content: space-between;
  }
  .wordmark { color: #fff; text-decoration: none; }
  .wordmark-accent, .footer-wordmark-accent { color: #e06c6b; }
  .nav-toggle {
    display: none; align-items: center; justify-content: center;
    width: 44px; height: 44px; border: 1px solid var(--pm-border);
    background: rgba(255,255,255,.04); color: var(--pm-foreground); cursor: pointer;
  }
  .nav-links { display: flex; align-items: center; }
  .page-hero {
    position: relative; overflow: hidden;
    padding: clamp(136px, 16vw, 194px) 32px clamp(72px, 9vw, 112px);
    border-bottom: 1px solid var(--pm-border);
    background:
      radial-gradient(circle at 78% 18%, rgba(184,58,57,.2), transparent 28rem),
      linear-gradient(180deg, #0d0e10 0%, var(--pm-canvas) 100%);
  }
  .page-hero::before {
    content: ''; position: absolute; inset: 0; pointer-events: none; opacity: .27;
    background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
    background-size: 48px 48px; mask-image: linear-gradient(to bottom, black, transparent 86%);
  }
  .hero-shell {
    position: relative; width: min(100%, var(--pm-content)); margin-inline: auto;
    display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(280px, .72fr);
    align-items: center; gap: clamp(48px, 8vw, 110px);
  }
  .eyebrow {
    display: inline-flex; margin-bottom: 22px; color: var(--pm-accent-coral);
    font-size: .76rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase;
  }
  h1 { max-width: 820px; margin-bottom: 24px; font-size: var(--pm-type-h1); }
  .hero-copy > p {
    max-width: 700px; margin-bottom: 0; color: var(--pm-foreground-soft);
    font-size: clamp(1.04rem, 1.8vw, 1.22rem);
  }
  .hero-visual {
    position: relative; padding: clamp(24px, 4vw, 46px);
    border: 1px solid var(--pm-border); border-radius: var(--pm-radius-lg);
    background: linear-gradient(145deg, rgba(255,255,255,.055), rgba(255,255,255,.012));
    box-shadow: var(--pm-shadow-soft);
  }
  .hero-logo { width: min(100%, 280px); height: auto; margin-inline: auto; border-radius: 28%; }
  .hero-visual::after {
    content: 'Product, study, and support answers'; display: block; margin-top: 20px;
    color: var(--pm-foreground-muted); font-size: .75rem; font-weight: 800;
    letter-spacing: .12em; text-align: center; text-transform: uppercase;
  }
  main { min-height: 60vh; }
  .faq-area {
    width: min(100%, calc(var(--pm-content) + 64px)); margin-inline: auto;
    padding: clamp(64px, 8vw, 108px) 32px clamp(80px, 10vw, 132px);
  }
  .section-heading { max-width: 760px; margin-bottom: clamp(42px, 6vw, 68px); }
  .section-heading h2 { margin-bottom: 16px; font-size: var(--pm-type-h2); }
  .section-heading p { margin-bottom: 0; color: var(--pm-foreground-soft); font-size: 1.06rem; }
  .faq-layout {
    display: grid; grid-template-columns: minmax(190px, 260px) minmax(0, 1fr);
    align-items: start; gap: clamp(40px, 7vw, 92px);
  }
  .category-nav {
    position: sticky; top: 106px; display: grid; gap: 6px;
    padding-left: 18px; border-left: 1px solid var(--pm-border);
  }
  .category-nav span {
    margin-bottom: 8px; color: var(--pm-foreground-muted); font-size: .72rem;
    font-weight: 800; letter-spacing: .12em; text-transform: uppercase;
  }
  .category-nav a {
    min-height: 44px; display: flex; align-items: center; border-radius: var(--pm-radius-sm);
    color: var(--pm-foreground-soft); font-size: .88rem; font-weight: 650; text-decoration: none;
  }
  .category-nav a:hover { color: var(--pm-foreground); }
  .faq-groups { display: grid; gap: clamp(58px, 8vw, 90px); }
  .faq-group { min-width: 0; }
  .group-heading { margin-bottom: 22px; }
  .group-kicker {
    display: block; margin-bottom: 10px; color: var(--pm-accent-coral);
    font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase;
  }
  .group-heading h3 { margin-bottom: 10px; font-size: clamp(1.65rem, 3vw, 2.35rem); }
  .group-heading p { margin-bottom: 0; color: var(--pm-foreground-muted); }
  .accordion-stack { display: grid; gap: 12px; }
  .faq-accordion {
    overflow: hidden; border: 1px solid var(--pm-border); border-radius: var(--pm-radius-md);
    background: linear-gradient(145deg, rgba(255,255,255,.045), rgba(255,255,255,.018));
  }
  .faq-accordion[open] { border-color: var(--pm-border-strong); background: var(--pm-surface-strong); }
  .faq-accordion summary {
    min-height: 76px; display: grid; grid-template-columns: minmax(0, 1fr) auto;
    align-items: center; gap: 18px; padding: 18px 22px;
    cursor: pointer; list-style: none; color: var(--pm-foreground); font-weight: 750;
  }
  .faq-accordion summary::-webkit-details-marker { display: none; }
  .question-text { line-height: 1.4; }
  .disclosure-icon {
    width: 34px; height: 34px; display: grid; place-items: center;
    border: 1px solid var(--pm-border); border-radius: 50%; color: var(--pm-foreground-soft);
  }
  .disclosure-icon::before { content: '+'; font-size: 1.15rem; font-weight: 400; line-height: 1; }
  .faq-accordion[open] .disclosure-icon::before { content: '−'; }
  .faq-answer { padding: 0 76px 28px 22px; color: var(--pm-foreground-soft); }
  .faq-answer p { margin-bottom: 0; }
  .faq-answer a { color: #f4b5b3; font-weight: 750; text-underline-offset: .2em; }
  .faq-close {
    margin-top: clamp(68px, 9vw, 110px); display: grid;
    grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 30px;
    padding: clamp(28px, 5vw, 48px); border-top: 1px solid var(--pm-border);
    border-bottom: 1px solid var(--pm-border);
  }
  .faq-close h2 { margin-bottom: 10px; font-size: clamp(1.65rem, 3vw, 2.4rem); }
  .faq-close p { margin-bottom: 0; color: var(--pm-foreground-soft); }
  .close-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px; }
}

@layer page-layout {
  @media (max-width: 960px) {
    .hero-shell { grid-template-columns: 1fr; }
    .hero-visual { width: min(100%, 480px); }
    .faq-layout { grid-template-columns: 1fr; }
    .category-nav {
      position: static; grid-template-columns: repeat(2, minmax(0, 1fr));
      padding: 16px; border: 1px solid var(--pm-border); border-radius: var(--pm-radius-md);
      background: rgba(255,255,255,.02);
    }
    .category-nav span { grid-column: 1 / -1; }
  }
  @media (max-width: 760px) {
    .page-hero, .faq-area { padding-inline: 20px; }
    .page-hero { padding-top: 122px; }
    .faq-accordion summary { padding-inline: 16px; }
    .faq-answer { padding: 0 16px 24px; }
    .faq-close { grid-template-columns: 1fr; }
    .close-actions { justify-content: flex-start; }
  }
  @media (max-width: 480px) {
    .category-nav { grid-template-columns: 1fr; }
    .category-nav span { grid-column: auto; }
    .faq-accordion summary { grid-template-columns: minmax(0, 1fr) 30px; gap: 12px; }
    .disclosure-icon { width: 30px; height: 30px; }
    .close-actions { display: grid; width: 100%; }
    .close-actions .btn { width: 100%; text-align: center; }
  }
  @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
  @media print {
    #navbar, .skip-link, footer, .category-nav, .close-actions { display: none !important; }
    body { background: #fff; color: #111; }
    .page-hero, .faq-area { padding: 24px 0; border: 0; background: #fff; }
    .hero-visual { display: none; }
    .faq-accordion { break-inside: avoid; border: 1px solid #bbb; background: #fff; color: #111; }
    .faq-accordion:not([open]) > :not(summary) { display: block; }
    .faq-answer, .section-heading p, .hero-copy > p, .faq-close p { color: #222; }
    .disclosure-icon { display: none; }
  }
}