/* ==========================================================================
   Bucks Garage Conversions — "The Transformation" design system
   Interior, architectural, before/after.
   Palette: charcoal / linen / oak / steel / plaster
   Type: Space Grotesk (display) · PT Serif (body) · mono (costs & measures)
   ========================================================================== */

/* ---- Tokens ---- */
:root {
  --charcoal: #33312E;
  --linen: #F8F6F2;
  --oak: #A6763C;        /* decorative accents only — fails 4.5:1 as text on light bg */
  --oak-dark: #845D30;   /* text-safe oak: >=4.5:1 on linen, plaster and white */
  --oak-deep: #6F4E28;
  --steel: #47617A;
  --plaster: #ECE8E1;

  --ink: var(--charcoal);
  --ink-soft: #5C5952;
  --line: #D8D2C7;

  --font-display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-body: "PT Serif", Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;

  --radius: 6px;           /* max radius, site-wide */
  --gutter: 1.25rem;
  --measure: 68ch;
  --tap: 44px;             /* minimum tap target */

  --shadow: 0 1px 2px rgba(51, 49, 46, 0.08), 0 6px 24px rgba(51, 49, 46, 0.07);
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
[id] { scroll-margin-top: 5rem; } /* sticky header offset for in-page anchors */

body {
  margin: 0;
  background: var(--linen);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
}

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

a { color: var(--steel); text-underline-offset: 3px; }
a:hover { color: var(--oak-dark); }

:focus-visible {
  outline: 3px solid var(--steel);
  outline-offset: 3px;
  border-radius: 2px;
}

::selection { background: var(--charcoal); color: var(--linen); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--charcoal);
  color: var(--linen);
  padding: 0.75rem 1.25rem;
  z-index: 100;
  font-family: var(--font-display);
}
.skip-link:focus { left: 0; }

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 0 0 0.6em;
  color: var(--charcoal);
}

h1 { font-size: clamp(2rem, 5.5vw, 3.25rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.125rem); }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.4rem); }
h4 { font-size: 1.05rem; }

p { margin: 0 0 1.1em; max-width: var(--measure); }
ul, ol { padding-left: 1.4rem; max-width: var(--measure); }
li { margin-bottom: 0.45em; }

.lede {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--ink-soft);
}

/* Eyebrow label — architect's annotation */
.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 0.85rem;
}

/* Figures: costs, measurements — always mono */
.figure,
td.figure,
.cost {
  font-family: var(--font-mono);
  font-size: 0.95em;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--charcoal);
  white-space: nowrap;
}
.figure--oak { color: var(--oak-dark); }

/* ---- Layout ---- */
.container {
  width: 100%;
  max-width: 1100px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: 3.5rem; }
.section--plaster { background: var(--plaster); }
.section--charcoal { background: var(--charcoal); color: var(--linen); }
.section--charcoal h2,
.section--charcoal h3 { color: var(--linen); }
.section--charcoal p { color: #D9D5CC; }
.section--charcoal a { color: #A8BDD2; }

/* ---- Signature: the floorplan corner ----
   A thin dashed steel bracket on section headers only,
   echoing the corner of an architect's drawing. */
.section-head {
  position: relative;
  padding: 1.1rem 0 0 1.25rem;
  margin-bottom: 2rem;
}
.section-head::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 34px;
  height: 34px;
  border-top: 1.5px dashed var(--steel);
  border-left: 1.5px dashed var(--steel);
  pointer-events: none;
}
.section--charcoal .section-head::before { border-color: #7E96AC; }
.section-head h1,
.section-head h2 { margin-bottom: 0.35em; }
.section-head p:last-child { margin-bottom: 0; }

/* ---- Header / nav ---- */
.site-header {
  background: var(--linen);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
  padding-block: 0.6rem;
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--charcoal);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  min-height: var(--tap);
}
.brand .brand-mark { color: var(--oak-dark); }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: var(--tap);
  min-width: var(--tap);
  padding: 0.5rem 0.9rem;
  background: transparent;
  border: 1.5px solid var(--charcoal);
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--charcoal);
  cursor: pointer;
}

.site-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--linen);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 0.5rem var(--gutter) 1.25rem;
}
.site-nav.is-open { display: block; }

.site-nav ul {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  max-width: none;
}
.site-nav li { margin: 0; }
.site-nav a:not(.btn) {
  display: flex;
  align-items: center;
  min-height: var(--tap);
  padding: 0.4rem 0.25rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1rem;
  color: var(--charcoal);
  text-decoration: none;
  border-bottom: 1px solid var(--plaster);
}
.site-nav a:not(.btn):hover { color: var(--oak-dark); }
.site-nav a[aria-current="page"] { color: var(--oak-dark); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: var(--tap);
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}
.btn-primary {
  background: var(--oak-dark);
  color: #FFFDF9;
  border-color: var(--oak-dark);
}
.btn-primary:hover { background: var(--oak-deep); border-color: var(--oak-deep); color: #FFFDF9; }
.btn-ghost {
  background: transparent;
  color: var(--charcoal);
  border-color: var(--charcoal);
}
.btn-ghost:hover { background: var(--charcoal); color: var(--linen); }
.section--charcoal .btn-ghost { color: var(--linen); border-color: var(--linen); }
.section--charcoal .btn-ghost:hover { background: var(--linen); color: var(--charcoal); }

.btn-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.5rem; }

/* ---- Hero ---- */
.hero { padding-block: 4rem 3.5rem; }
.hero h1 { max-width: 24ch; }
.hero .lede { max-width: 52ch; }

.trust-strip {
  margin-top: 2.25rem;
  padding-top: 1.5rem;
  border-top: 1px dashed var(--line);
  display: grid;
  gap: 1rem;
}
.trust-strip .trust-item {
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}
.trust-item::before {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  border: 1.5px solid var(--steel);
  border-radius: 2px;
  transform: translateY(1px);
}

/* ---- Before / After transformation panel ---- */
.transformation {
  display: grid;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}
.transformation-pane { padding: 1.75rem 1.5rem 1.5rem; position: relative; }
.transformation-pane--before {
  background:
    repeating-linear-gradient(45deg, rgba(71, 97, 122, 0.06) 0 10px, transparent 10px 20px),
    #E7E9EC;
  color: var(--steel);
}
.transformation-pane--after { background: #FDFBF7; }
.transformation-pane h3 { margin-bottom: 0.5rem; }
.transformation-pane--before h3 { color: var(--steel); }
.transformation-pane--after h3 { color: var(--oak-dark); }
.transformation-pane ul { margin: 0; padding-left: 1.2rem; font-size: 0.98rem; }
.transformation-pane .pane-label {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.75rem;
}
.transformation-pane--before .pane-label { color: var(--steel); }
.transformation-pane--after .pane-label { color: var(--oak-dark); }
.transformation-pane--before { border-bottom: 2px dashed var(--steel); }

/* ---- Use strip: uses + honest cost bands, mono figures with dashed leaders ---- */
.use-strip {
  list-style: none;
  padding: 0;
  margin: 1.75rem 0 0;
  max-width: 46rem;
}
.use-strip li {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  padding: 0.95rem 0;
  border-bottom: 1px dashed var(--line);
  margin: 0;
}
.use-strip li:first-child { border-top: 1px dashed var(--line); }
.use-strip .use-name {
  font-family: var(--font-display);
  font-weight: 600;
  white-space: nowrap;
}
.use-strip .use-note {
  font-size: 0.9rem;
  color: var(--ink-soft);
  display: none;
}
.use-strip .use-leader {
  flex: 1;
  min-width: 2rem;
  border-bottom: 1px dashed var(--line);
  transform: translateY(-4px);
}
.use-strip .use-cost {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--oak-dark);
  white-space: nowrap;
}
@media (min-width: 768px) {
  .use-strip .use-note { display: inline; }
}
/* At narrow widths the 16px mono cost can't share a row with the name */
@media (max-width: 479.98px) {
  .use-strip li { flex-wrap: wrap; row-gap: 0.2rem; }
  .use-strip .use-leader { display: none; }
  .use-strip .use-cost { width: 100%; text-align: right; }
}

/* ---- Cards ---- */
.card-grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 0.5rem;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}
.section--plaster .card { border-color: #DCD6CB; }
.card h3 { margin-bottom: 0.4em; }
.card p { font-size: 0.98rem; margin-bottom: 1rem; }
.card .card-meta {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--steel);
  margin-bottom: 0.75rem;
}
.card .card-link {
  margin-top: auto;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--oak-dark);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  min-height: var(--tap);
}
.card .card-link::after { content: " \2192"; margin-left: 0.35rem; }
.card .card-link:hover { text-decoration: underline; }

/* ---- Tables (costs) ---- */
.table-wrap { overflow-x: auto; margin-block: 1.5rem; }
table {
  border-collapse: collapse;
  width: 100%;
  min-width: 480px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 0.98rem;
}
caption {
  text-align: left;
  font-family: var(--font-display);
  font-weight: 600;
  padding-bottom: 0.6rem;
}
th, td {
  text-align: left;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--plaster);
  vertical-align: top;
}
thead th {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--steel);
  border-bottom: 1.5px solid var(--steel);
}
tbody tr:last-child td { border-bottom: none; }

/* ---- Spec / regs list (steel = technical) ---- */
.spec-list {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0;
  max-width: var(--measure);
}
.spec-list li {
  padding: 0.9rem 0 0.9rem 1.1rem;
  border-left: 2px solid var(--steel);
  margin-bottom: 0.9rem;
  background: linear-gradient(to right, rgba(71, 97, 122, 0.05), transparent 60%);
}
.spec-list li strong { font-family: var(--font-display); font-weight: 600; }

/* ---- Process steps ---- */
.steps {
  list-style: none;
  counter-reset: step;
  padding: 0;
  margin: 1.5rem 0 0;
  display: grid;
  gap: 1rem;
  max-width: none;
}
.steps li {
  counter-increment: step;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.25rem 1.25rem 3.6rem;
  position: relative;
  margin: 0;
}
.steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 1.1rem;
  top: 1.3rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--oak-dark);
}
.steps li strong {
  font-family: var(--font-display);
  font-weight: 600;
  display: block;
  margin-bottom: 0.2rem;
}
.steps li p { font-size: 0.96rem; margin: 0; }

/* ---- FAQ ---- */
.faq details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  max-width: var(--measure);
}
.faq summary {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.9rem 1.1rem;
  min-height: var(--tap);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--oak-dark);
  flex: none;
}
.faq details[open] summary::after { content: "\2212"; }
.faq details > div { padding: 0 1.1rem 1.1rem; }
.faq details > div p:last-child { margin-bottom: 0; }

/* ---- Q&A direct answer (guides): 40–60 word snippet under a question H2 ---- */
.qa-answer {
  border-left: 3px solid var(--oak);
  padding: 0.4rem 0 0.4rem 1.1rem;
  margin: 0 0 1.25rem;
  max-width: var(--measure);
  font-size: 1.08rem;
}
.qa-answer strong { font-family: var(--font-display); }

/* ---- Guide meta line ---- */
.guide-meta {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--ink-soft);
  margin-bottom: 1rem;
}

/* ---- Callouts ---- */
.callout {
  border: 1px solid var(--line);
  border-left: 3px solid var(--oak);
  border-radius: var(--radius);
  background: #fff;
  padding: 1.25rem 1.4rem;
  margin: 1.75rem 0;
  max-width: var(--measure);
}
.callout--steel { border-left-color: var(--steel); }
.callout h3, .callout h4 { margin-bottom: 0.4em; }
.callout p:last-child { margin-bottom: 0; }

/* ---- CTA band ---- */
.cta-band { text-align: left; }
.cta-band .btn-row { margin-top: 1.25rem; }

/* ---- Forms ---- */
.form-grid { display: grid; gap: 1.1rem; max-width: 40rem; }
label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  display: block;
  margin-bottom: 0.35rem;
}
input, select, textarea {
  width: 100%;
  min-height: var(--tap);
  padding: 0.6rem 0.85rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
}
input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--steel);
  outline-offset: 1px;
  border-color: var(--steel);
}
textarea { min-height: 8rem; resize: vertical; }
.form-hint { font-size: 0.88rem; color: var(--ink-soft); margin-top: 0.3rem; }

/* ---- Footer ---- */
.site-footer {
  background: var(--charcoal);
  color: #C9C5BC;
  padding-block: 3rem 2rem;
  margin-top: 3.5rem;
  font-size: 0.95rem;
}
.site-footer h4,
.site-footer .footer-heading {
  color: var(--linen);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.9rem;
}
.site-footer a { color: #C9C5BC; }
.site-footer a:hover { color: var(--linen); }
.footer-grid { display: grid; gap: 2rem; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 0.15rem; }
.footer-grid li a {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap);
  text-decoration: none;
}
.footer-grid li a:hover { text-decoration: underline; }
.footer-legal {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px dashed #55524C;
  font-size: 0.875rem;
  color: #ABA69C;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  justify-content: space-between;
}
.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--linen);
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
}
.footer-brand .brand-mark { color: #CE9A5B; }

/* ---- Page intro (inner pages) ---- */
.page-intro { padding-block: 3.25rem 2.5rem; }
.page-intro .breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--ink-soft);
  margin-bottom: 1.25rem;
}
.page-intro .breadcrumb a { color: var(--steel); }

/* ---- Utilities ---- */
.measure { max-width: var(--measure); }
.mt-0 { margin-top: 0; }
.flow-top { margin-top: 1.75rem; }
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   Breakpoints — mobile-first: 480 / 768 / 1100
   ========================================================================== */

@media (min-width: 480px) {
  .trust-strip { grid-template-columns: repeat(2, 1fr); }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .btn-row .btn { flex: none; }
}

@media (min-width: 768px) {
  .section { padding-block: 4.5rem; }
  .hero { padding-block: 5.5rem 4.5rem; }

  .transformation { grid-template-columns: 1fr 1fr; }
  .transformation-pane--before {
    border-bottom: none;
    border-right: 2px dashed var(--steel);
  }
  .transformation-pane { padding: 2.25rem 2rem 2rem; }

  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1.2fr; }
  .trust-strip { grid-template-columns: repeat(4, 1fr); }
  .trust-strip--3 { grid-template-columns: repeat(3, 1fr); }
}

/* Desktop nav needs ~900px to fit 7 links + CTA without overflow */
@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .site-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    position: static;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
  }
  .site-nav ul {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin: 0;
  }
  .site-nav a:not(.btn) {
    border-bottom: none;
    padding: 0.4rem 0.75rem;
    font-size: 0.95rem;
  }
  .site-nav .nav-cta { margin-left: 0.75rem; }
}

@media (min-width: 1100px) {
  .card-grid { grid-template-columns: repeat(4, 1fr); }
  .card-grid--3 { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
}

/* Cards: 3-up variant stays 2-up until wide */
@media (min-width: 480px) and (max-width: 1099px) {
  .card-grid--3 { grid-template-columns: repeat(2, 1fr); }
}


/* ==========================================================================
   Design QA: mobile type scale (reading text >=16px below 768px),
   hero-in-one-viewport compression, table scroll affordance
   ========================================================================== */

@media (max-width: 767.98px) {
  /* reading text up to >=16px */
  .card p, .steps li p, table, .trust-strip .trust-item,
  .use-strip .use-cost, .use-strip .use-note,
  .form-hint, .site-footer, .card .card-link, label, .nav-toggle,
  .transformation-pane ul { font-size: 1rem; }
  .figure, td.figure, .cost { font-size: 1em; }

  /* hero / page intro fits one ~740px viewport with the header */
  .hero, .page-intro { padding-block: 2.5rem 2.25rem; }
  h1 { font-size: clamp(1.75rem, 7.5vw, 3.25rem); }
  .lede { font-size: 1.0625rem; line-height: 1.55; }
  .page-intro .breadcrumb { margin-bottom: 0.75rem; }
  .btn-row { margin-top: 1.1rem; }
  .trust-strip { margin-top: 1.5rem; padding-top: 1.1rem; gap: 0.55rem; }
  .section-head { margin-bottom: 1.5rem; }
}

/* Scrollable tables get a visible affordance (class set by main.js) */
.table-wrap { position: relative; }
.table-wrap.is-scrollable::before {
  content: "\2190 swipe \2192";
  display: block;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  padding-bottom: 0.35rem;
}
.table-wrap.is-scrollable::after {
  content: "";
  position: absolute;
  top: 1.6rem;
  right: 0;
  bottom: 0;
  width: 28px;
  pointer-events: none;
  background: linear-gradient(to left, rgba(51, 49, 46, 0.14), transparent);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.table-wrap.is-scrolled-end::after { display: none; }

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}