/*
Theme Name: Camping for Beginners
Description: Field-guide theme for the Camping for Beginners handbook. Warm paper, ink line-work, one reserved accent for safety.
Version: 1.0
Requires at least: 6.0
Tested up to: 7.1
Requires PHP: 8.0
Text Domain: cfb
*/

/* ===========================================================================
   Design tokens — from the handoff style guide.
   Signal Red is RESERVED for genuine safety cues. Never decorative.
   ========================================================================= */
:root {
  --paper:      #F6F1E7;
  --card:       #FCF8EF;
  --ink:        #1B1B18;
  --ink-muted:  #52504A;
  --green:      #3E7D5A;
  --green-dark: #31674A;
  --blue:       #3E6E93;
  --tan:        #C39A6B;
  --tan-line:   rgba(195,154,107,0.5);
  --tan-line-2: rgba(195,154,107,0.7);
  --tan-wash:   rgba(195,154,107,0.10);
  --faint:      #A39C8C;
  --red:        #C43D2E;

  --serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --sans:  'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --mono:  'IBM Plex Mono', ui-monospace, 'SF Mono', monospace;

  --shell:   1180px;
  --reader:  720px;
  --sidebar: 296px;

  --r-btn:  3px;
  --r-card: 5px;
}

/* ===========================================================================
   Reset / base
   ========================================================================= */
*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--green); text-decoration: none; }
a:hover { color: var(--green-dark); text-decoration: underline; }

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 500; line-height: 1.15; margin: 0; }
h2 { font-weight: 600; }

/* Visible focus. Keyboard users must be able to see where they are. */
:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

.cfb-skip {
  position: absolute; left: -9999px;
  background: var(--ink); color: var(--card);
  padding: 10px 16px; z-index: 100;
}
.cfb-skip:focus { left: 12px; top: 12px; }

.cfb-shell { max-width: var(--shell); margin: 0 auto; padding: 0 clamp(16px, 4vw, 28px); }

.cfb-eyebrow {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--tan);
  margin: 0;
}

/* ===========================================================================
   Buttons
   ========================================================================= */
.cfb-btn {
  display: inline-block;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 13px 22px;
  border-radius: var(--r-btn);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
}
.cfb-btn--primary { background: var(--green); color: #fff; }
.cfb-btn--primary:hover { background: var(--green-dark); color: #fff; text-decoration: none; }
.cfb-btn--outline { border-color: var(--tan-line-2); color: var(--ink); background: transparent; }
.cfb-btn--outline:hover { background: var(--tan-wash); color: var(--ink); text-decoration: none; }

/* ===========================================================================
   Header / nav
   ========================================================================= */
.cfb-header {
  border-bottom: 1px solid var(--tan-line);
  background: var(--paper);
  position: sticky; top: 0; z-index: 40;
}
.cfb-header__inner {
  max-width: var(--shell); margin: 0 auto;
  padding: 16px clamp(16px, 4vw, 28px);
  display: flex; align-items: center; gap: 24px;
}
.cfb-brand { display: block; }
.cfb-brand__kicker {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.24em;
  text-transform: uppercase; color: var(--tan); margin: 0 0 2px;
}
.cfb-brand__name {
  font-family: var(--serif); font-size: 21px; font-weight: 500;
  letter-spacing: -0.01em; color: var(--ink); margin: 0;
}
.cfb-brand:hover { text-decoration: none; }

.cfb-nav { margin-left: auto; display: flex; align-items: center; gap: 26px; }
.cfb-nav a { font-size: 15px; color: var(--ink); }
.cfb-nav a:hover { color: var(--green); text-decoration: none; }
.cfb-nav__toggle { display: none; background: none; border: 0; font-size: 22px; cursor: pointer; color: var(--ink); }

@media (max-width: 760px) {
  .cfb-nav__toggle { display: block; margin-left: auto; }
  .cfb-nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--card); border-bottom: 1px solid var(--tan-line);
    padding: 8px 0;
  }
  .cfb-nav.is-open { display: flex; }
  .cfb-nav a { padding: 12px clamp(16px, 4vw, 28px); }
  .cfb-nav .cfb-btn { margin: 8px clamp(16px, 4vw, 28px); text-align: center; }
}

/* ===========================================================================
   Footer
   ========================================================================= */
.cfb-footer {
  border-top: 1px solid var(--tan-line);
  margin-top: 72px; padding: 40px 0;
  font-size: 14px; color: var(--ink-muted);
}
.cfb-footer__inner {
  max-width: var(--shell); margin: 0 auto; padding: 0 clamp(16px, 4vw, 28px);
  display: flex; flex-wrap: wrap; gap: 20px; align-items: baseline;
}
.cfb-footer nav { display: flex; gap: 20px; margin-left: auto; flex-wrap: wrap; }

/* ===========================================================================
   Home
   ========================================================================= */
.cfb-hero {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(28px, 5vw, 60px);
  align-items: center;
  padding: clamp(30px, 5.5vw, 68px) 0 clamp(20px, 4vw, 44px);
}
@media (max-width: 860px) { .cfb-hero { grid-template-columns: 1fr; } }

.cfb-hero h1 {
  font-size: clamp(42px, 6.4vw, 78px);
  letter-spacing: -0.02em;
  margin: 16px 0 0;
}
.cfb-hero__pitch {
  font-family: var(--serif); font-size: 19px; line-height: 1.55;
  color: var(--ink-muted); max-width: 46ch; margin: 20px 0 0;
}
.cfb-hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.cfb-hero__note {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.04em;
  color: var(--ink-muted); margin-top: 18px;
}

.cfb-band {
  background: var(--card);
  border-top: 1px solid var(--tan-line);
  border-bottom: 1px solid var(--tan-line);
  padding: clamp(36px, 5vw, 64px) 0;
}
.cfb-band__head { max-width: var(--shell); margin: 0 auto 28px; padding: 0 clamp(16px, 4vw, 28px); }
.cfb-band__head h2 { font-size: clamp(26px, 3.4vw, 36px); margin-top: 10px; max-width: 20ch; }
.cfb-band__head .cfb-eyebrow { color: var(--green); }

.cfb-arc {
  max-width: var(--shell); margin: 0 auto; padding: 0 clamp(16px, 4vw, 28px);
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--tan-line);
  border: 1px solid var(--tan-line);
}
@media (max-width: 900px) { .cfb-arc { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .cfb-arc { grid-template-columns: 1fr; } }
.cfb-arc__cell { background: var(--card); padding: 22px 20px; }
.cfb-arc__n {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em;
  color: var(--green); font-weight: 500; text-transform: uppercase;
}
.cfb-arc__cell h3 { font-size: 20px; margin: 8px 0 6px; }
.cfb-arc__cell p { font-size: 14px; color: var(--ink-muted); margin: 0; }

.cfb-features {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 22px;
  padding: clamp(36px, 5vw, 60px) 0;
}
@media (max-width: 900px) { .cfb-features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .cfb-features { grid-template-columns: 1fr; } }
.cfb-features > div { border-top: 2px solid var(--tan); padding-top: 12px; }
.cfb-features h3 {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--blue); font-weight: 500; margin: 0 0 8px;
}
.cfb-features p { font-size: 14px; color: var(--ink-muted); margin: 0; }

.cfb-dark {
  background: var(--ink); color: var(--card);
  padding: clamp(40px, 5.5vw, 72px) 0; margin: clamp(20px,4vw,40px) 0;
}
.cfb-dark h2 { color: var(--card); font-size: clamp(26px, 3.6vw, 40px); max-width: 22ch; }
.cfb-dark p { color: rgba(252,248,239,0.72); max-width: 52ch; }
.cfb-dark .cfb-btn--outline { border-color: rgba(252,248,239,0.4); color: var(--card); }
.cfb-dark .cfb-btn--outline:hover { background: rgba(252,248,239,0.1); color: var(--card); }

.cfb-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; padding: clamp(30px,4vw,56px) 0; }
@media (max-width: 760px) { .cfb-steps { grid-template-columns: 1fr; } }
.cfb-steps__n {
  font-family: var(--mono); font-size: 30px; color: var(--tan); line-height: 1;
}
.cfb-steps h3 { font-size: 21px; margin: 10px 0 6px; }
.cfb-steps p { font-size: 15px; color: var(--ink-muted); margin: 0; }

/* ===========================================================================
   Browse (chapter archive)
   ========================================================================= */
.cfb-browse__part {
  display: grid; grid-template-columns: var(--sidebar) 1fr; gap: 32px;
  padding: 34px 0; border-top: 1px solid var(--tan-line);
}
@media (max-width: 900px) { .cfb-browse__part { grid-template-columns: 1fr; gap: 14px; } }
.cfb-browse__label .cfb-eyebrow { color: var(--green); }
.cfb-browse__label h2 { font-size: 24px; margin-top: 8px; }
.cfb-browse__row {
  display: flex; align-items: baseline; gap: 16px;
  padding: 11px 14px; border-bottom: 1px solid rgba(195,154,107,0.3);
  color: var(--ink);
}
.cfb-browse__row:hover { background: var(--tan-wash); text-decoration: none; color: var(--ink); }
.cfb-browse__row:hover .cfb-browse__arrow { opacity: 1; transform: translateX(2px); }
.cfb-browse__num {
  font-family: var(--mono); font-size: 12px; color: var(--faint);
  min-width: 30px; flex-shrink: 0;
}
.cfb-browse__title { font-family: var(--serif); font-size: 18px; }
.cfb-browse__arrow { margin-left: auto; color: var(--green); opacity: 0; transition: all .15s ease; }

/* ===========================================================================
   Reader (single chapter)
   ========================================================================= */
.cfb-reader {
  display: grid; grid-template-columns: var(--sidebar) 1fr;
  gap: clamp(24px, 4vw, 52px);
  max-width: 1200px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 28px);
  align-items: start;
}
@media (max-width: 900px) { .cfb-reader { grid-template-columns: 1fr; } }

.cfb-toc {
  position: sticky; top: 84px; max-height: calc(100vh - 110px);
  overflow-y: auto; padding: 26px 0 40px;
  border-right: 1px solid var(--tan-line);
  padding-right: 18px;
}
@media (max-width: 900px) {
  .cfb-toc { position: static; max-height: none; border-right: 0; padding-right: 0; border-bottom: 1px solid var(--tan-line); }
  .cfb-toc__list { display: none; }
  .cfb-toc.is-open .cfb-toc__list { display: block; }
  .cfb-toc__toggle { display: flex; }
}
.cfb-toc__toggle {
  display: none; width: 100%; align-items: center; justify-content: space-between;
  background: none; border: 0; padding: 14px 0; cursor: pointer;
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--ink);
}
.cfb-toc__group {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--tan);
  margin: 22px 0 8px; padding-bottom: 6px; border-bottom: 1px solid rgba(195,154,107,0.3);
}
.cfb-toc__group:first-child { margin-top: 0; }
.cfb-toc a {
  display: flex; gap: 10px; align-items: baseline;
  padding: 7px 10px; font-size: 14.5px; color: var(--ink-muted);
  border-left: 2px solid transparent;
}
.cfb-toc a:hover { background: var(--tan-wash); color: var(--ink); text-decoration: none; }
.cfb-toc a.is-active {
  border-left-color: var(--green); background: rgba(62,125,90,0.07);
  color: var(--ink); font-weight: 600;
}
.cfb-toc a.is-active .cfb-toc__n { color: var(--green); }
.cfb-toc__n { font-family: var(--mono); font-size: 11px; color: var(--faint); min-width: 22px; }

.cfb-chapter { max-width: var(--reader); padding: 30px 0 40px; }
.cfb-chapter__head { border-bottom: 1px solid var(--tan-line); padding-bottom: 22px; margin-bottom: 30px; }
.cfb-chapter__head h1 { font-size: clamp(34px, 5vw, 58px); letter-spacing: -0.02em; margin: 12px 0 0; }
/* The book's original chapter title, kept as a deck under the descriptive H1. */
.cfb-chapter__deck {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(19px, 2.4vw, 25px);
  line-height: 1.3;
  color: var(--ink-muted);
  margin: 10px 0 0;
}

.cfb-chapter__meta {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.06em;
  color: var(--ink-muted); margin-top: 14px;
}

/* Long-form prose */
.cfb-prose { font-family: var(--serif); font-size: 18.5px; line-height: 1.72; color: var(--ink); }
.cfb-prose p { margin: 0 0 1.15em; }
.cfb-prose h2 {
  font-size: clamp(23px, 3vw, 30px); margin: 2em 0 0.6em;
  padding-top: 0.5em; border-top: 1px solid rgba(195,154,107,0.3);
}
.cfb-prose h3 { font-size: 21px; margin: 1.6em 0 0.5em; }
.cfb-prose a { text-decoration: underline; text-underline-offset: 2px; }

.cfb-prose ul.cfb-list, .cfb-prose ol.cfb-list { margin: 0 0 1.3em; padding-left: 1.3em; }
.cfb-prose .cfb-list li { margin-bottom: 0.6em; }
.cfb-prose .cfb-list strong { font-family: var(--sans); font-size: 0.94em; font-weight: 600; }

/* Plates */
.cfb-plate { margin: 2em 0; }
.cfb-plate img {
  width: 100%; background: var(--card);
  border: 1.5px solid var(--ink); border-radius: 2px;
}
.cfb-plate figcaption {
  font-family: var(--mono); font-size: 11.5px; line-height: 1.55;
  color: var(--ink-muted); margin-top: 10px; letter-spacing: 0.02em;
}

/* Tables */
.cfb-table { margin: 2em 0; overflow-x: auto; }
.cfb-table table { width: 100%; border-collapse: collapse; font-family: var(--sans); font-size: 14.5px; }
.cfb-table th, .cfb-table td {
  text-align: left; padding: 11px 13px; border-bottom: 1px solid var(--tan-line); vertical-align: top;
}
.cfb-table thead th {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--blue); border-bottom: 2px solid var(--tan);
}
.cfb-table tbody th { font-weight: 600; }

/* Callouts. safety = Signal Red, and only ever safety. */
.cfb-callout {
  margin: 1.8em 0; padding: 16px 20px;
  background: var(--card); border-left: 3px solid var(--green);
  border-radius: 0 var(--r-card) var(--r-card) 0;
  font-family: var(--sans); font-size: 15.5px; line-height: 1.6;
}
.cfb-callout--safety { border-left-color: var(--red); }
.cfb-callout__label {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--green); margin: 0 0 6px; font-weight: 500;
}
.cfb-callout--safety .cfb-callout__label { color: var(--red); }
.cfb-callout p:last-child { margin: 0; }

/* Takeaways / Sideways */
.cfb-takeaways, .cfb-sideways { margin: 2.2em 0; padding: 22px 24px; border-radius: var(--r-card); }
.cfb-takeaways { background: rgba(62,125,90,0.06); border: 1px solid rgba(62,125,90,0.25); }
.cfb-sideways  { background: var(--card); border-left: 3px solid var(--tan); }
.cfb-takeaways h2, .cfb-sideways h2 {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em;
  text-transform: uppercase; margin: 0 0 14px; border: 0; padding: 0;
}
.cfb-takeaways h2 { color: var(--green); }
.cfb-sideways h2 { color: var(--tan); }
.cfb-takeaways ul, .cfb-sideways ul { margin: 0; padding: 0; list-style: none; font-family: var(--sans); font-size: 15.5px; }
.cfb-takeaways li { position: relative; padding-left: 26px; margin-bottom: 12px; }
.cfb-takeaways li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 700; }
.cfb-sideways li { margin-bottom: 14px; }
.cfb-takeaways strong, .cfb-sideways strong { display: block; margin-bottom: 2px; }

/* FAQ */
.cfb-faq { margin: 2.4em 0; }
.cfb-faq h2 { font-size: clamp(23px,3vw,30px); border-top: 1px solid rgba(195,154,107,0.3); padding-top: 0.5em; }
.cfb-faq__item { border-bottom: 1px solid rgba(195,154,107,0.3); padding: 16px 0; }
.cfb-faq__item h3 { font-size: 19px; margin: 0 0 8px; }
.cfb-faq__item p { margin: 0; font-size: 17px; color: var(--ink-muted); }

/* Checklists (Appendix A) */
.cfb-checkkit__group { margin: 1.6em 0; }
.cfb-checkkit__group h3 {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--blue); margin: 0 0 8px;
}
.cfb-checkkit ul { list-style: none; margin: 0; padding: 0; }
.cfb-checkkit li { border-bottom: 1px solid rgba(195,154,107,0.25); }
.cfb-check {
  display: flex; align-items: center; gap: 12px; width: 100%;
  background: none; border: 0; padding: 11px 6px; cursor: pointer;
  font-family: var(--sans); font-size: 15.5px; color: var(--ink); text-align: left;
}
.cfb-check:hover { background: var(--tan-wash); }
.cfb-check__box {
  width: 17px; height: 17px; flex-shrink: 0;
  border: 1.5px solid var(--tan); border-radius: 2px; background: var(--card);
}
.cfb-check[aria-pressed="true"] { color: var(--faint); text-decoration: line-through; }
.cfb-check[aria-pressed="true"] .cfb-check__box { background: var(--green); border-color: var(--green); }
.cfb-checkkit__count { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.1em; color: var(--green); }
.cfb-checkkit__note { font-size: 14px; color: var(--ink-muted); font-family: var(--sans); }

/* Spend levels (Appendix B) */
.cfb-spend { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 2em 0; }
@media (max-width: 760px) { .cfb-spend { grid-template-columns: 1fr; } }
.cfb-spend__card {
  background: var(--card); border: 1px solid var(--tan-line);
  border-top: 3px solid var(--green); border-radius: var(--r-card); padding: 20px;
  font-family: var(--sans); font-size: 15px;
}
.cfb-spend__label { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--tan); margin: 0; }
.cfb-spend__card h3 { font-size: 20px; margin: 6px 0 4px; }
.cfb-spend__band { font-family: var(--mono); font-size: 12px; color: var(--green); margin: 0 0 10px; }

/* Glossary */
.cfb-glossary__group { display: grid; grid-template-columns: 56px 1fr; gap: 18px; padding: 20px 0; border-top: 1px solid var(--tan-line); }
.cfb-glossary__letter { font-family: var(--serif); font-size: 40px; color: var(--tan); line-height: 1; margin: 0; }
.cfb-glossary dl { margin: 0; font-family: var(--sans); font-size: 15.5px; }
.cfb-glossary dt { font-weight: 600; margin-top: 14px; }
.cfb-glossary dt:first-child { margin-top: 0; }
.cfb-glossary dd { margin: 3px 0 0; color: var(--ink-muted); }
.cfb-chip {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em;
  color: var(--green); background: rgba(62,125,90,0.1);
  padding: 2px 6px; border-radius: 2px; margin-left: 6px; font-weight: 400;
}

/* Index */
.cfb-index__group { display: grid; grid-template-columns: 56px 1fr; gap: 18px; padding: 18px 0; border-top: 1px solid var(--tan-line); }
.cfb-index__letter { font-family: var(--serif); font-size: 36px; color: var(--tan); line-height: 1; margin: 0; }
.cfb-index ul { margin: 0; padding: 0; list-style: none; columns: 2; column-gap: 32px; font-family: var(--sans); font-size: 14.5px; }
@media (max-width: 640px) { .cfb-index ul { columns: 1; } }
.cfb-index li { break-inside: avoid; margin-bottom: 5px; }
.cfb-index__refs { color: var(--faint); font-family: var(--mono); font-size: 11.5px; }
.cfb-index__refs strong { color: var(--green); }

/* Chapter foot */
.cfb-chapfoot { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 44px 0 0; }
@media (max-width: 620px) { .cfb-chapfoot { grid-template-columns: 1fr; } }
.cfb-chapfoot a {
  border: 1px solid var(--tan-line); border-radius: var(--r-card);
  padding: 16px 18px; color: var(--ink);
}
.cfb-chapfoot a:hover { background: var(--tan-wash); text-decoration: none; }
.cfb-chapfoot span {
  display: block; font-family: var(--mono); font-size: 10.5px;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--faint); margin-bottom: 5px;
}
.cfb-chapfoot strong { font-family: var(--serif); font-weight: 500; font-size: 17px; }
.cfb-chapfoot .cfb-next { text-align: right; }

/* ===========================================================================
   Download gate
   ========================================================================= */
.cfb-gate { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px,5vw,60px); padding: clamp(30px,5vw,64px) 0; align-items: start; }
@media (max-width: 860px) { .cfb-gate { grid-template-columns: 1fr; } }
.cfb-gate h1 { font-size: clamp(32px,4.6vw,52px); margin: 14px 0 0; letter-spacing: -0.02em; }
.cfb-gate__list { list-style: none; padding: 0; margin: 24px 0 0; font-size: 15.5px; }
.cfb-gate__list li { position: relative; padding-left: 26px; margin-bottom: 10px; }
.cfb-gate__list li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 700; }

.cfb-form {
  background: var(--card); border: 1px solid var(--tan-line);
  border-radius: var(--r-card); padding: clamp(22px,3vw,32px);
}
.cfb-form label {
  display: block; font-family: var(--mono); font-size: 10.5px;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-muted);
  margin: 16px 0 6px;
}
.cfb-form label:first-of-type { margin-top: 0; }
.cfb-form input[type=email], .cfb-form input[type=text], .cfb-form select {
  width: 100%; padding: 12px 14px; font-family: var(--sans); font-size: 15px;
  border: 1px solid var(--tan-line-2); border-radius: var(--r-btn);
  background: #fff; color: var(--ink);
}
.cfb-form__check { display: flex; gap: 10px; align-items: flex-start; margin: 20px 0 0; font-size: 14px; color: var(--ink-muted); }
.cfb-form .cfb-btn { width: 100%; margin-top: 20px; }
.cfb-form__fine { font-family: var(--mono); font-size: 11px; color: var(--faint); margin: 12px 0 0; text-align: center; }
/* Errors in ink, not red. Red is reserved for physical safety. */
.cfb-form__error {
  background: rgba(27,27,24,0.05); border-left: 3px solid var(--ink);
  padding: 10px 14px; font-size: 14px; margin-bottom: 18px;
}
.cfb-hp { position: absolute; left: -9999px; }

.cfb-thanks { text-align: center; max-width: 560px; margin: 0 auto; padding: clamp(40px,6vw,90px) 0; }
.cfb-thanks__check {
  width: 58px; height: 58px; border-radius: 50%; background: rgba(62,125,90,0.12);
  color: var(--green); font-size: 27px; display: flex; align-items: center;
  justify-content: center; margin: 0 auto 22px;
}
.cfb-thanks h1 { font-size: clamp(30px,4.2vw,46px); margin: 12px 0 0; }
.cfb-thanks p { color: var(--ink-muted); }

/* ===========================================================================
   Motion — respected only when the visitor allows it.
   ========================================================================= */
@media (prefers-reduced-motion: no-preference) {
  .cfb-fade { animation: cfbFadeUp .38s ease both; }
  @keyframes cfbFadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
}

@media print {
  .cfb-header, .cfb-footer, .cfb-toc, .cfb-chapfoot { display: none; }
  body { background: #fff; }
  .cfb-reader { grid-template-columns: 1fr; }
}