/* Extension Check — shared styles
   Palette: slate ink on cool paper, one patina-green accent, sand for data. */
:root {
  --paper: #F4F5F3;
  --card: #FFFFFF;
  --ink: #1C2326;
  --ink-soft: #4A5559;
  --line: #D3D8D5;
  --accent: #1F6B5C;       /* patina green: buttons, links, range bars */
  --accent-ink: #FFFFFF;
  --accent-soft: #DCEBE6;
  --sand: #E9E3D5;          /* cost track background */
  --focus: #0B5FFF;
  --serif: "Literata", Georgia, "Times New Roman", serif;
  --sans: "Public Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --max: 1080px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.55;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: var(--card); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 14px; padding-bottom: 14px; }
.wordmark { font-family: var(--serif); font-weight: 700; font-size: 1.25rem; color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.wordmark span { color: var(--accent); }
.header-note { font-size: 0.875rem; color: var(--ink-soft); text-align: right; }

/* Hero */
.hero { padding: 40px 0 48px; }
.hero .wrap { display: grid; gap: 32px; }
@media (min-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr 440px; align-items: start; gap: 48px; }
  .hero { padding: 64px 0 72px; }
}
h1, h2, h3 { font-family: var(--serif); line-height: 1.15; letter-spacing: -0.015em; margin: 0; }
h1 { font-size: clamp(2rem, 5.2vw, 3.1rem); font-weight: 700; max-width: 18ch; }
.lede { font-size: 1.15rem; color: var(--ink-soft); margin: 16px 0 24px; max-width: 52ch; }
.ticks { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.ticks li { display: flex; gap: 10px; align-items: baseline; }
.ticks li::before { content: ""; flex: 0 0 auto; width: 14px; height: 8px; border-left: 3px solid var(--accent); border-bottom: 3px solid var(--accent); transform: rotate(-45deg) translateY(-3px); }

/* Form card */
.form-card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px; box-shadow: 0 1px 0 rgba(28,35,38,0.04); }
.form-card h2 { font-size: 1.35rem; margin-bottom: 4px; }
.form-card .sub { font-size: 0.9375rem; color: var(--ink-soft); margin: 0 0 12px; }
.form-card iframe { width: 100%; border: 0; min-height: 520px; }
.form-missing { border: 2px dashed var(--line); border-radius: 10px; padding: 20px; color: var(--ink-soft); font-size: 0.9375rem; }
.form-missing code { background: var(--sand); padding: 1px 5px; border-radius: 4px; }

/* Sections */
section.block { padding: 56px 0; border-top: 1px solid var(--line); }
section.block h2 { font-size: clamp(1.6rem, 3.6vw, 2.1rem); margin-bottom: 8px; }
section.block .intro { color: var(--ink-soft); margin: 0 0 28px; max-width: 60ch; }

/* Steps — a real sequence, so numbered */
.steps { list-style: none; counter-reset: step; padding: 0; margin: 0; display: grid; gap: 20px; }
@media (min-width: 760px) { .steps { grid-template-columns: repeat(3, 1fr); gap: 32px; } }
.steps li { counter-increment: step; padding-top: 14px; border-top: 3px solid var(--ink); }
.steps li::before { content: counter(step); font-family: var(--serif); font-size: 2rem; font-weight: 700; color: var(--accent); display: block; line-height: 1; margin-bottom: 8px; }
.steps h3 { font-size: 1.15rem; margin-bottom: 4px; }
.steps p { margin: 0; color: var(--ink-soft); }

/* Cost ruler: every range on one shared £ scale */
.ruler { display: grid; gap: 18px; margin: 0; padding: 0; list-style: none; }
.ruler li { display: grid; gap: 6px; }
.ruler .row-head { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.ruler .name { font-weight: 600; }
.ruler .size { color: var(--ink-soft); font-weight: 400; font-size: 0.9375rem; }
.ruler .price { font-variant-numeric: tabular-nums; font-weight: 600; white-space: nowrap; }
.track { position: relative; height: 12px; background: var(--sand); border-radius: 6px; }
.track .bar { position: absolute; top: 0; bottom: 0; background: var(--accent); border-radius: 6px; }
.scale { display: flex; justify-content: space-between; font-size: 0.8125rem; color: var(--ink-soft); font-variant-numeric: tabular-nums; margin-top: 4px; }
.footnote { font-size: 0.875rem; color: var(--ink-soft); margin-top: 20px; max-width: 70ch; }

/* FAQ */
.faq { display: grid; gap: 0; max-width: 760px; }
.faq details { border-bottom: 1px solid var(--line); padding: 16px 0; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 1.05rem; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--serif); font-size: 1.4rem; line-height: 1; color: var(--accent); }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 10px 0 0; color: var(--ink-soft); }

/* Buttons */
.btn { display: inline-block; background: var(--accent); color: var(--accent-ink); text-decoration: none; font-weight: 700; padding: 14px 22px; border-radius: 10px; border: 0; font-size: 1rem; cursor: pointer; }
.btn:hover { background: #18574B; text-decoration: none; }
.btn-quiet { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-quiet:hover { background: var(--sand); }
.cta-band { text-align: left; }
.cta-band p { color: var(--ink-soft); margin: 8px 0 20px; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 32px 0 40px; font-size: 0.9rem; color: var(--ink-soft); background: var(--card); }
.site-footer p { margin: 0 0 8px; max-width: 70ch; }
.site-footer nav { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 12px; }

/* Thank-you page */
.result { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 24px; max-width: 640px; }
.result .big { font-family: var(--serif); font-size: clamp(2rem, 6vw, 2.8rem); font-weight: 700; font-variant-numeric: tabular-nums; margin: 6px 0; }
.result .what { color: var(--ink-soft); margin: 0; }

/* Plain text pages */
.prose { max-width: 70ch; padding: 40px 0 64px; }
.prose h1 { font-size: 2.2rem; margin-bottom: 8px; max-width: none; }
.prose h2 { font-size: 1.35rem; margin: 32px 0 8px; }
.prose p, .prose li { color: var(--ink); }
.prose .updated { color: var(--ink-soft); }

/* Consent banner */
.consent { position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 50; max-width: 560px; margin: 0 auto; background: var(--ink); color: #F4F5F3; border-radius: 12px; padding: 16px; display: none; box-shadow: 0 8px 30px rgba(0,0,0,0.25); }
.consent.show { display: block; }
.consent p { margin: 0 0 12px; font-size: 0.9375rem; }
.consent a { color: #9FD6C7; }
.consent .actions { display: flex; gap: 10px; flex-wrap: wrap; }
.consent .btn { padding: 10px 16px; }
.consent .btn-quiet { color: #F4F5F3; border-color: #4A5559; }
.consent .btn-quiet:hover { background: #2A3438; }

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }
html { scroll-behavior: smooth; }
.header-note .short { display: none; }
@media (max-width: 600px) { .header-note .long { display: none; } .header-note .short { display: inline; } }