@layer reset, base, layout, components;

@layer reset {
  *,
  *::before,
  *::after { box-sizing: border-box; }
  body { margin: 0; }
  img { max-width: 100%; display: block; }
  a { color: inherit; }
  button, input { font: inherit; }
  ul { margin: 0; padding: 0; }
}

@layer base {
  :root {
    --ink: #12343a;
    --lantern: #e8a54b;
    --mist: #e7eef0;
    --text: #12343a;
    --muted: #245159;
    --line: rgba(18, 52, 58, 0.18);
    --radius: 3px;
    --index: 15.5rem;
    --measure: 68ch;
  }

  html { scroll-behavior: smooth; }

  body {
    background: var(--mist);
    color: var(--text);
    font-family: "Plus Jakarta Sans", "Segoe UI", sans-serif;
    font-size: 1.05rem;
    line-height: 1.65;
    overflow-wrap: break-word;
  }

  h1, h2, h3 {
    font-family: "Young Serif", "Palatino Linotype", Palatino, serif;
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -0.02em;
  }

  h1 { font-size: clamp(2.15rem, 4vw, 3.45rem); margin: 0 0 0.8rem; }
  h2 { font-size: 1.7rem; margin: 0 0 0.75rem; }
  h3 { font-size: 1.2rem; margin: 0; }

  p { margin: 0 0 1rem; }
  .lead { font-size: 1.12rem; max-width: var(--measure); }
  .eyebrow {
    margin: 0 0 0.7rem;
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
  }
}

@layer layout {
  .skip {
    position: absolute;
    left: 0.75rem;
    top: -3rem;
    background: var(--lantern);
    color: var(--ink);
    padding: 0.45rem 0.7rem;
    border-radius: var(--radius);
    z-index: 3;
  }
  .skip:focus { top: 0.75rem; }

  .mobile-bar {
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background: var(--ink);
    color: var(--mist);
    padding: 0.85rem 1rem;
  }

  .mobile-brand {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    color: var(--mist);
    text-decoration: none;
    font-weight: 600;
  }

  .shell {
    display: grid;
    grid-template-columns: var(--index) minmax(0, 1fr);
    min-height: 100vh;
    align-items: start;
    background: linear-gradient(90deg, var(--ink) 0 var(--index), var(--mist) var(--index) 100%);
  }

  .threshold {
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: auto;
    background: var(--ink);
    color: var(--mist);
    padding: 1.5rem 1.15rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
  }

  .main {
    padding: 2.75rem 2.25rem 4rem;
    min-width: 0;
  }

  .doc { max-width: 46rem; }

  .dock {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1.15fr 1fr 1.15fr;
    gap: 1.75rem;
    background: var(--ink);
    color: var(--mist);
    border-top: 3px solid var(--lantern);
    padding: 2rem 1.5rem 2.4rem;
  }
}

@layer components {
  .brand {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    color: var(--mist);
    text-decoration: none;
  }
  .brand img { width: 2.6rem; height: 2.6rem; }
  .brand strong { display: block; font-size: 0.98rem; letter-spacing: 0.04em; }
  .brand small { display: block; color: var(--lantern); font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; }

  .index-label {
    margin: 0 0 0.55rem;
    color: var(--lantern);
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
  }

  .nav-list { list-style: none; display: flex; flex-direction: column; }
  .nav-list a {
    display: grid;
    grid-template-columns: 1.8rem 1fr;
    gap: 0.35rem;
    padding: 0.55rem 0.2rem;
    color: var(--mist);
    text-decoration: none;
    border-bottom: 1px solid rgba(231, 238, 240, 0.16);
  }
  .nav-list a em { font-style: normal; color: var(--lantern); font-size: 0.75rem; }
  .nav-list a[aria-current="page"] { color: var(--lantern); }

  .menu-btn {
    background: transparent;
    color: var(--mist);
    border: 1px solid var(--lantern);
    border-radius: var(--radius);
    padding: 0.4rem 0.7rem;
    cursor: pointer;
  }

  .hero {
    display: grid;
    grid-template-columns: 13.5rem minmax(0, 1fr);
    gap: 1.75rem;
    align-items: stretch;
    margin-bottom: 2.6rem;
  }

  .doorway {
    background: var(--ink);
    color: var(--mist);
    min-height: 18rem;
    padding: 1.2rem 1rem 1.3rem;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    animation: doorway-settle 680ms ease 1;
  }
  .doorway::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 0.55rem;
    background: var(--lantern);
  }
  .doorway p { margin: 0; }
  .doorway .door-kicker { color: var(--lantern); letter-spacing: 0.14em; text-transform: uppercase; font-size: 0.72rem; }
  .doorway .door-name { font-family: "Young Serif", Palatino, serif; font-size: 1.7rem; line-height: 1.05; margin-top: 0.8rem; }

  .cta {
    display: inline-block;
    background: var(--lantern);
    color: var(--ink);
    text-decoration: none;
    padding: 0.72rem 1rem;
    border-radius: var(--radius);
    font-weight: 600;
  }
  .cta:hover { filter: brightness(1.05); }
  .cta:focus-visible, a:focus-visible, .menu-btn:focus-visible {
    outline: 2px solid var(--lantern);
    outline-offset: 3px;
  }

  .text-link { color: var(--ink); font-weight: 600; }
  .threshold .text-link, .dock .text-link { color: var(--lantern); }

  .section { margin: 0 0 2.4rem; }
  .section h2 { max-width: var(--measure); }

  .strip-list { list-style: none; }
  .strip, .fact, .step, .offer, details.strip {
    border-top: 1px solid var(--line);
    border-left: 3px solid var(--lantern);
    padding: 0.85rem 0.2rem 0.85rem 0.9rem;
    background: transparent;
  }
  .fact { display: grid; grid-template-columns: 9.5rem minmax(0, 1fr); gap: 0.75rem; }
  .fact span, .step em, .offer em {
    font-style: normal;
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }
  .offer a { font-weight: 600; }
  .step { display: grid; grid-template-columns: 4.5rem minmax(0, 1fr); gap: 0.75rem; }

  details.strip summary { cursor: pointer; font-weight: 600; }
  details.strip p { margin: 0.6rem 0 0; max-width: var(--measure); }

  .doc-section { margin-top: 1.5rem; }
  .doc-section h2 { font-size: 1.35rem; }

  .dock a { color: var(--mist); text-decoration: none; display: block; padding: 0.18rem 0; }
  .dock a:hover { color: var(--lantern); }
  .dock h2 { color: var(--lantern); font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; font-family: "Plus Jakarta Sans", sans-serif; }
  .dock p { margin: 0 0 0.35rem; }
  .fine { font-size: 0.92rem; }

  .inline-links { display: flex; flex-wrap: wrap; gap: 0.8rem 1.2rem; }
}

@keyframes doorway-settle {
  from { transform: translateY(14px); opacity: 0; }
  to { transform: none; opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .doorway { animation: none; }
}

@media (max-width: 860px) {
  .mobile-bar { display: flex; }
  .shell { grid-template-columns: 1fr; background: var(--mist); }
  .threshold {
    display: none;
    position: static;
    height: auto;
    overflow: visible;
    padding-top: 0.4rem;
  }
  .threshold.is-open { display: flex; }
  .main { padding: 1.5rem 1.1rem 3rem; }
  .hero { grid-template-columns: 1fr; }
  .doorway { min-height: 9.5rem; }
  .fact, .step { grid-template-columns: 1fr; gap: 0.2rem; }
  .dock { grid-template-columns: 1fr; padding: 1.4rem 1.1rem 2rem; }
}