/* Corvus Digital — shared stylesheet
   One stylesheet for the whole site. First-party only, no external requests.
   Palette (SITE_SEED 6): warm paper, ink text, copper accent, deep teal links. */

:root {
  --paper: #f6f3ec;
  --paper-tint: #efe7d8;
  --card: #fffdf8;
  --ink: #23252b;
  --ink-soft: #4c4f59;
  --ink-faint: #6b6e78;
  --line: #d9d1c1;
  --line-strong: #c4b9a4;
  --accent: #a94d24;
  --accent-dark: #833a1a;
  --link: #1a5b55;
  --link-hover: #0f3c38;
  --focus: #1a5b55;
  --good: #2f6d4f;
  --warn: #9a5a12;

  --wrap: 74rem;
  --measure: 42rem;
  --radius: 6px;
  --radius-lg: 12px;
  --gap: 1.5rem;

  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: Georgia, "Iowan Old Style", "Times New Roman", "Noto Serif", serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  text-underline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

/* ---------- Skip link ---------- */
.skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: .6rem 1rem;
  z-index: 200;
  border-radius: 0 0 var(--radius) 0;
}
.skip:focus { left: 0; }

/* ---------- Layout ---------- */
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 1.25rem; }
main { display: block; }
.section { padding: 2.5rem 0; border-bottom: 1px solid var(--line); }
.section:last-of-type { border-bottom: 0; }
.measure { max-width: var(--measure); }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { font-family: var(--serif); line-height: 1.2; color: var(--ink); font-weight: 700; }
h1 { font-size: clamp(1.9rem, 1.2rem + 3vw, 2.7rem); margin: 0 0 .6rem; letter-spacing: -.01em; }
h2 { font-size: clamp(1.4rem, 1.1rem + 1.4vw, 1.85rem); margin: 2rem 0 .75rem; }
h3 { font-size: 1.28rem; margin: 1.6rem 0 .5rem; }
h4 { font-size: 1.08rem; margin: 1.2rem 0 .4rem; }
p { margin: 0 0 1rem; }
a { color: var(--link); }
a:hover { color: var(--link-hover); }
a:focus-visible, button:focus-visible, summary:focus-visible, .btn:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 2px;
}
strong { font-weight: 700; }
.lead { font-size: 1.2rem; color: var(--ink-soft); }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .78rem;
  font-weight: 700;
  color: var(--accent);
  margin: 0 0 .5rem;
}
.muted { color: var(--ink-faint); }
.small { font-size: .92rem; }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--paper);
  border-bottom: 1px solid var(--line-strong);
}
.nav-bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 4rem; }
.brand { display: inline-flex; align-items: center; gap: .6rem; font-family: var(--serif); font-weight: 700; font-size: 1.25rem; color: var(--ink); text-decoration: none; }
.brand:hover { color: var(--ink); }
.brand svg { display: block; }
.brand-name { line-height: 1; }
.brand-sub { display: block; font-family: var(--sans); font-weight: 400; font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-faint); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: .5rem .7rem;
  font-size: .95rem;
  color: var(--ink);
  cursor: pointer;
  align-items: center;
  gap: .4rem;
}

.nav-list { list-style: none; display: flex; align-items: center; gap: .3rem; margin: 0; padding: 0; }
.nav-list > li { position: relative; }
.nav-list a, .nav-list .dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .55rem .7rem;
  color: var(--ink);
  text-decoration: none;
  border-radius: var(--radius);
  font-size: .98rem;
  font-weight: 500;
  background: none;
  border: 0;
  cursor: pointer;
  font-family: var(--sans);
}
.nav-list a:hover, .nav-list .dropdown-toggle:hover { background: var(--paper-tint); color: var(--ink); }
.nav-list a[aria-current="page"] { color: var(--accent-dark); text-decoration: underline; text-decoration-thickness: 2px; }

.dropdown-menu {
  list-style: none;
  margin: 0;
  padding: .4rem;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 15rem;
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 30px rgba(35, 37, 43, .12);
  display: none;
}
.dropdown-menu li { margin: 0; }
.dropdown-menu a { display: block; padding: .5rem .6rem; }
.dropdown.open .dropdown-menu { display: block; }
.dropdown-toggle .caret { transition: transform .15s ease; }
.dropdown.open .dropdown-toggle .caret { transform: rotate(180deg); }

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .nav-list {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line-strong);
    padding: .5rem 1.25rem 1rem;
  }
  .nav-list.open { display: flex; }
  .nav-list a, .nav-list .dropdown-toggle { padding: .75rem .4rem; width: 100%; justify-content: space-between; }
  .dropdown-menu { position: static; display: none; box-shadow: none; border: 0; border-left: 2px solid var(--line); border-radius: 0; margin: 0 0 .4rem .4rem; min-width: 0; }
  .dropdown.open .dropdown-menu { display: block; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  background: var(--accent-dark);
  color: #fff;
  text-decoration: none;
  padding: .7rem 1.2rem;
  border-radius: var(--radius);
  font-weight: 600;
  border: 1px solid var(--accent-dark);
  line-height: 1.3;
}
.btn:hover { background: #6f3115; color: #fff; }
.btn-outline { background: transparent; color: var(--accent-dark); }
.btn-outline:hover { background: var(--paper-tint); color: var(--accent-dark); }

/* ---------- Hero ---------- */
.hero { padding: 3rem 0 1.5rem; }
.hero .q { color: var(--accent-dark); }
.hero .lead { max-width: 46rem; }

/* ---------- Key points strip ---------- */
.keypoints { list-style: none; margin: 1.5rem 0 0; padding: 0; display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }
.keypoints li { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 1.1rem 1.2rem; }
.keypoints h3 { margin: 0 0 .3rem; font-size: 1.05rem; }
.keypoints p { margin: 0; font-size: .96rem; color: var(--ink-soft); }

/* ---------- Disclosure box ---------- */
.disclosure {
  background: var(--paper-tint);
  border: 1px solid var(--line-strong);
  border-left: 5px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  margin: 1.5rem 0;
}
.disclosure p { margin: 0; }
.disclosure p + p { margin-top: .6rem; }
.disclosure strong { color: var(--accent-dark); }

/* inline note next to each affiliate link */
.aff-note { font-size: .9rem; color: var(--ink-soft); margin: .4rem 0 0; }

/* ---------- Cards / grid ---------- */
.card-grid { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 1.35rem; }
.card h3 { margin-top: 0; }
.card p:last-child { margin-bottom: 0; }

/* ---------- Callouts ---------- */
.callout { border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 1rem 1.2rem; margin: 1.5rem 0; background: var(--card); }
.callout.tint { background: var(--paper-tint); }
.callout .callout-title { font-family: var(--serif); font-weight: 700; margin: 0 0 .4rem; }
.watch { border-left: 5px solid var(--warn); }
.help { border-left: 5px solid var(--link); }

/* ---------- Tables ---------- */
.table-scroll { overflow-x: auto; margin: 1.25rem 0; }
table { border-collapse: collapse; width: 100%; min-width: 34rem; background: var(--card); border: 1px solid var(--line); }
caption { text-align: left; color: var(--ink-faint); font-size: .9rem; padding: 0 0 .5rem; }
th, td { text-align: left; padding: .7rem .8rem; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { background: var(--paper-tint); font-family: var(--serif); }
tbody tr:last-child td { border-bottom: 0; }

/* ---------- Pros / cons ---------- */
.proscons { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); margin: 1.5rem 0; }
.proscons .col { border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 1.1rem 1.2rem; background: var(--card); }
.proscons h3 { margin-top: 0; }
.proscons ul { margin: 0; padding-left: 1.2rem; }
.proscons li { margin: .35rem 0; }
.col-good { border-top: 4px solid var(--good); }
.col-watch { border-top: 4px solid var(--warn); }

/* ---------- Definition list ---------- */
.deflist { margin: 1.25rem 0; }
.deflist dt { font-family: var(--serif); font-weight: 700; margin-top: 1rem; }
.deflist dd { margin: .2rem 0 0; color: var(--ink-soft); }

/* ---------- Checklist ---------- */
.checklist { list-style: none; margin: 1.25rem 0; padding: 0; }
.checklist li { position: relative; padding-left: 1.9rem; margin: .55rem 0; }
.checklist li::before {
  content: "";
  position: absolute; left: 0; top: .25rem;
  width: 1.1rem; height: 1.1rem;
  border: 2px solid var(--good); border-radius: 3px;
  background:
    linear-gradient(45deg, transparent 45%, var(--good) 45%, var(--good) 55%, transparent 55%) no-repeat center/0.75rem 0.12rem,
    linear-gradient(-45deg, transparent 45%, var(--good) 45%, var(--good) 55%, transparent 55%) no-repeat 0.28rem 0.1rem/0.4rem 0.12rem;
}

/* ---------- Numbered procedure ---------- */
.procedure { counter-reset: step; list-style: none; padding: 0; margin: 1.25rem 0; }
.procedure > li { position: relative; padding-left: 3rem; margin: 1.1rem 0; min-height: 2rem; }
.procedure > li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute; left: 0; top: 0;
  width: 2rem; height: 2rem;
  background: var(--accent-dark); color: #fff;
  border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--serif); font-weight: 700;
}
.procedure h3 { margin: 0 0 .2rem; font-size: 1.1rem; }

/* ---------- FAQ accordion ---------- */
.faq { margin: 1.25rem 0; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius); margin: .7rem 0; background: var(--card); overflow: hidden; }
.faq-q {
  width: 100%; text-align: left; background: none; border: 0; cursor: pointer;
  padding: 1rem 1.1rem; font-family: var(--serif); font-size: 1.08rem; font-weight: 700; color: var(--ink);
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.faq-q .sign { font-family: var(--sans); font-size: 1.4rem; color: var(--accent); flex: none; }
.faq-a { padding: 0 1.1rem; max-height: 0; overflow: hidden; }
.faq-item.open .faq-a { padding: 0 1.1rem 1rem; max-height: none; }
.faq-item.open .faq-q .sign { transform: rotate(45deg); }

/* ---------- In-page contents ---------- */
.toc { background: var(--paper-tint); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 1.1rem 1.3rem; margin: 1.5rem 0; }
.toc h2 { margin: 0 0 .5rem; font-size: 1.1rem; }
.toc ol { margin: 0; padding-left: 1.3rem; }
.toc li { margin: .3rem 0; }

/* ---------- Article layout ---------- */
.article { padding: 2.5rem 0 3rem; }
.article > * { max-width: var(--measure); }
.article > .table-scroll, .article > .proscons, .article > .card-grid, .article > figure, .article > .callout, .article > .faq { max-width: 100%; }
.article ul, .article ol { padding-left: 1.3rem; }
.article li { margin: .4rem 0; }
.breadcrumbs { font-size: .9rem; color: var(--ink-faint); padding: 1rem 0 0; }
.breadcrumbs a { color: var(--ink-soft); }

/* ---------- Related reading ---------- */
.related { margin-top: 2rem; }
.related ul { list-style: none; padding: 0; display: grid; gap: .8rem; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }
.related li { border: 1px solid var(--line); border-radius: var(--radius); }
.related a { display: block; padding: .8rem 1rem; text-decoration: none; }
.related a:hover { background: var(--paper-tint); }

/* ---------- SVG illustration ---------- */
.illus { display: block; margin: 1.5rem 0; max-width: 100%; height: auto; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: #e7e4dc; padding: 2.5rem 0 2rem; margin-top: 1rem; }
.site-footer a { color: #e9c7b3; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; gap: 1.5rem; grid-template-columns: 1.3fr 1fr; }
.publisher address { font-style: normal; line-height: 1.7; }
.publisher .site-name { font-family: var(--serif); font-size: 1.15rem; font-weight: 700; color: #fff; display: block; margin-bottom: .3rem; }
.footer-policies { margin: 1rem 0; }
.footer-policies a { margin-right: .4rem; }
.trademark { font-size: .85rem; color: #b9b4a8; border-top: 1px solid #3a3c44; padding-top: 1rem; margin-top: 1rem; }
.reviewed { font-size: .85rem; color: #b9b4a8; margin-top: .6rem; }
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr; } }

/* ---------- Utilities ---------- */
.mt0 { margin-top: 0; }
.center { text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }