/* ============================================================
   newroofquote.uk — shared stylesheet
   Palette tokens (justified in README):
   --slate        deep slate blue, trust anchor (slate roofing)
   --slate-mid    softer mid-slate, secondary surfaces
   --amber        single warm CTA accent (clay-tile-drawn, pulled to confident amber)
   --amber-dark   accent hover/active
   --ground       off-white page ground
   --card         white card surface
   --ink          primary text
   --muted        secondary text
   ============================================================ */

:root {
  --slate: #2b3a47;
  --slate-mid: #3f5666;
  --amber: #d98a2b;
  --amber-dark: #b86f17;
  --ground: #f7f5f1;
  --card: #ffffff;
  --ink: #2d3338;
  --muted: #5d6770;
  --line: #e2ddd4;
  --line-strong: #c9c2b5;
  --good: #2f6f4f;

  --maxw: 1080px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(43,58,71,.08), 0 8px 28px rgba(43,58,71,.07);
  --shadow-lg: 0 6px 18px rgba(43,58,71,.12), 0 24px 60px rgba(43,58,71,.12);

  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;

  /* type scale */
  --t-xs: .8125rem;
  --t-sm: .9375rem;
  --t-base: 1.0625rem;
  --t-lg: 1.25rem;
  --t-xl: 1.5rem;
  --t-2xl: 2rem;
  --t-3xl: 2.6rem;
  --t-4xl: 3.4rem;
}

/* one web font, loaded with display:swap via <link> in HTML; fallback safe */

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--t-base);
  line-height: 1.65;
  color: var(--ink);
  background: var(--ground);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  color: var(--slate);
  margin: 0 0 .5em;
  letter-spacing: -.01em;
}
h1 { font-size: var(--t-3xl); }
h2 { font-size: var(--t-2xl); margin-top: 1.6em; }
h3 { font-size: var(--t-xl); margin-top: 1.4em; }
h4 { font-size: var(--t-lg); }

p { margin: 0 0 1rem; }
a { color: var(--slate-mid); }
a:hover { color: var(--slate); }

strong { color: var(--ink); }

ul, ol { margin: 0 0 1rem; padding-left: 1.3rem; }
li { margin: .35rem 0; }

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

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

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--slate);
  color: #fff;
  padding: 12px 18px;
  z-index: 200;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; color:#fff; }

/* ---------- Header / nav ---------- */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 68px;
}
.wordmark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.3rem;
  color: var(--slate);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: -.01em;
}
.wordmark:hover { color: var(--slate); }
.wordmark span { color: var(--amber); }

.nav { display: flex; align-items: center; gap: .25rem; }
.nav-list {
  display: flex;
  align-items: center;
  gap: .25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-list a {
  display: inline-block;
  padding: .55rem .75rem;
  color: var(--ink);
  text-decoration: none;
  font-size: var(--t-sm);
  font-weight: 500;
  border-radius: var(--radius-sm);
}
.nav-list a:hover { background: var(--ground); color: var(--slate); }
.nav-list a[aria-current="page"] { color: var(--slate); box-shadow: inset 0 -2px 0 var(--amber); }

.btn {
  display: inline-block;
  font: inherit;
  font-weight: 600;
  font-size: var(--t-sm);
  text-decoration: none;
  border: 0;
  cursor: pointer;
  padding: .7rem 1.2rem;
  border-radius: var(--radius-sm);
  transition: background-color .15s ease, transform .05s ease;
}
@media (prefers-reduced-motion: reduce) { .btn { transition: none; } }
.btn-cta {
  background: var(--amber);
  color: #21160a;
}
.btn-cta:hover { background: var(--amber-dark); color: #fff; }
.btn-cta:active { transform: translateY(1px); }
.btn-lg { padding: .9rem 1.6rem; font-size: var(--t-base); }
.btn-block { display: block; width: 100%; text-align: center; }
.btn-secondary {
  background: var(--slate);
  color: #fff;
}
.btn-secondary:hover { background: var(--slate-mid); color:#fff; }

.nav-cta { margin-left: .4rem; }

/* hamburger */
.hamburger {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--line-strong);
  background: var(--card);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
}
.hamburger .bars { position: relative; width: 22px; height: 16px; display:block; }
.hamburger .bars span {
  position: absolute; left: 0; width: 22px; height: 2px;
  background: var(--slate); border-radius: 2px;
  transition: transform .2s ease, opacity .2s ease, top .2s ease;
}
.hamburger .bars span:nth-child(1) { top: 0; }
.hamburger .bars span:nth-child(2) { top: 7px; }
.hamburger .bars span:nth-child(3) { top: 14px; }
@media (prefers-reduced-motion: reduce) {
  .hamburger .bars span { transition: none; }
}
.hamburger[aria-expanded="true"] .bars span:nth-child(1) { top: 7px; transform: rotate(45deg); }
.hamburger[aria-expanded="true"] .bars span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] .bars span:nth-child(3) { top: 7px; transform: rotate(-45deg); }

@media (max-width: 880px) {
  .hamburger { display: inline-flex; }
  .nav {
    position: absolute;
    top: 68px; left: 0; right: 0;
    background: var(--card);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    padding: .5rem 20px 1rem;
    display: none;
  }
  .nav.open { display: block; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-list li { width: 100%; }
  .nav-list a { display: block; padding: .85rem .5rem; border-radius: 0; border-bottom: 1px solid var(--line); }
  .nav-list a[aria-current="page"] { box-shadow: inset 3px 0 0 var(--amber); }
  .nav-cta { margin: .8rem 0 0; }
  .btn.nav-cta { display:block; text-align:center; }
}
/* no-JS fallback: show nav inline if hamburger never wired */
.no-js .nav { position: static; display: block; box-shadow: none; border: 0; padding: 0; }
.no-js .hamburger { display: none; }

/* ---------- Layout helpers ---------- */
main { display: block; }
.section { padding: 3rem 0; }
.section-tight { padding: 2rem 0; }
.lede { font-size: var(--t-lg); color: var(--muted); max-width: 60ch; }
.measure { max-width: 70ch; }
.center { text-align: center; }
.muted { color: var(--muted); }
.small { font-size: var(--t-sm); }
.xs { font-size: var(--t-xs); }

.hero {
  background:
    linear-gradient(180deg, rgba(43,58,71,.02), rgba(43,58,71,0)),
    var(--ground);
  padding: 3.2rem 0 2.4rem;
}
.hero h1 { max-width: 18ch; }
.hero .lede { margin-top: .5rem; }

.grid { display: grid; gap: 1.25rem; }
@media (min-width: 720px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: var(--shadow);
}
.card h3 { margin-top: 0; }

.steps { counter-reset: step; list-style: none; padding: 0; }
.steps li {
  position: relative;
  padding-left: 3.2rem;
  margin: 1.1rem 0;
}
.steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute; left: 0; top: -2px;
  width: 2.3rem; height: 2.3rem;
  background: var(--slate); color: #fff;
  font-family: var(--font-display); font-weight: 600;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
}

.feature-list { list-style: none; padding: 0; }
.feature-list li { padding-left: 1.6rem; position: relative; }
.feature-list li::before {
  content: ""; position: absolute; left: 0; top: .65rem;
  width: .55rem; height: .55rem; border-radius: 2px;
  background: var(--amber);
}

.callout {
  background: #eef2f3;
  border-left: 4px solid var(--slate-mid);
  border-radius: var(--radius-sm);
  padding: 1rem 1.2rem;
  margin: 1.4rem 0;
  font-size: var(--t-sm);
  color: var(--ink);
}
.callout strong { color: var(--slate); }

.caveat {
  font-size: var(--t-sm);
  color: var(--muted);
  background: #f1eee8;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  padding: .8rem 1rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: var(--t-xs);
  font-weight: 700;
  color: var(--amber-dark);
  margin: 0 0 .4rem;
}

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; }
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--t-sm);
  margin: 1rem 0;
}
table.data th, table.data td {
  text-align: left;
  padding: .65rem .7rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
table.data th { background: var(--slate); color: #fff; font-weight: 600; }
table.data tbody tr:nth-child(even) { background: #faf8f4; }

/* ---------- FAQ ---------- */
.faq details {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--card);
  margin: .6rem 0;
  padding: 0 1.1rem;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--slate);
  padding: 1rem 0;
  list-style: none;
  position: relative;
  padding-right: 2rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  font-size: 1.5rem; color: var(--amber-dark); line-height: 1;
}
.faq details[open] summary::after { content: "\2013"; }
.faq details[open] summary { border-bottom: 1px solid var(--line); }
.faq .faq-body { padding: .9rem 0 1.1rem; color: var(--ink); }
.faq .faq-body p:last-child { margin-bottom: 0; }

/* ============================================================
   Calculator component
   ============================================================ */
.calc {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.calc-head {
  background: var(--slate);
  color: #fff;
  padding: 1.2rem 1.4rem;
}
.calc-head h2 { color: #fff; margin: 0; font-size: var(--t-xl); }
.calc-head p { margin: .3rem 0 0; color: #d4dde2; font-size: var(--t-sm); }

.calc-body { padding: 1.4rem; }
.calc-verified {
  font-size: var(--t-xs);
  color: var(--muted);
  margin: 0 0 1.2rem;
}

.field { margin-bottom: 1.1rem; }
.field > label, .field > .field-label {
  display: block;
  font-weight: 600;
  font-size: var(--t-sm);
  color: var(--ink);
  margin-bottom: .4rem;
}
.field .hint { font-weight: 400; color: var(--muted); font-size: var(--t-xs); }
.field.optional .field-label::after {
  content: " (optional)"; color: var(--muted); font-weight: 400; font-size: var(--t-xs);
}

select, input[type="text"], input[type="email"], input[type="tel"], input[type="search"] {
  width: 100%;
  font: inherit;
  font-size: var(--t-base);
  padding: .7rem .8rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink);
}
select:focus, input:focus { outline: 3px solid var(--amber); outline-offset: 1px; border-color: var(--slate-mid); }

.chip-row { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip {
  position: relative;
}
.chip input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.chip span {
  display: inline-block;
  padding: .5rem .85rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: #fff;
  font-size: var(--t-sm);
  cursor: pointer;
  user-select: none;
}
.chip input:checked + span {
  background: var(--slate);
  color: #fff;
  border-color: var(--slate);
}
.chip input:focus-visible + span { outline: 3px solid var(--amber); outline-offset: 2px; }

.calc-actions { margin-top: 1.4rem; }

/* result card — the signature element */
.result {
  margin-top: 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #fbfaf7, #fff);
  box-shadow: var(--shadow);
  padding: 1.6rem;
}
.result[hidden] { display: none; }
.result .result-eyebrow {
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: var(--t-xs);
  font-weight: 700;
  color: var(--muted);
  margin: 0 0 .4rem;
}
.result .cost {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--slate);
  font-size: clamp(2.2rem, 7vw, var(--t-4xl));
  line-height: 1.05;
  letter-spacing: -.02em;
  margin: .1rem 0 .6rem;
}
.result .cost .dash { color: var(--amber); padding: 0 .1em; }
.result-meta {
  display: grid; gap: .6rem;
  grid-template-columns: 1fr 1fr;
  margin: 1rem 0;
  font-size: var(--t-sm);
}
.result-meta .m-label { color: var(--muted); display: block; font-size: var(--t-xs); text-transform: uppercase; letter-spacing: .06em; }
.result-meta .m-val { color: var(--ink); font-weight: 600; }
.result-notes { font-size: var(--t-sm); color: var(--muted); margin: .8rem 0 0; }
.result-notes ul { margin: .4rem 0 0; padding-left: 1.2rem; }
.result-caveat {
  margin-top: 1rem;
  font-size: var(--t-sm);
  color: var(--ink);
  background: #f1eee8;
  border-radius: var(--radius-sm);
  padding: .8rem 1rem;
}

.calc-error {
  margin-top: 1rem;
  background: #fcefe9;
  border: 1px solid #e3a892;
  color: #8a3a1c;
  border-radius: var(--radius-sm);
  padding: .8rem 1rem;
  font-size: var(--t-sm);
}
.calc-error[hidden] { display: none; }

/* ---------- Lead form / gate ---------- */
.lead-gate {
  margin-top: 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.lead-gate[hidden] { display: none; }
.lead-head {
  background: #eef2f3;
  padding: 1.2rem 1.4rem;
  border-bottom: 1px solid var(--line);
}
.lead-head h3 { margin: 0; color: var(--slate); font-size: var(--t-lg); }
.lead-body { padding: 1.4rem; }

.trust-line {
  display: flex; flex-wrap: wrap; gap: .4rem .9rem;
  font-size: var(--t-xs); color: var(--muted);
  margin: 0 0 1.1rem;
}
.trust-line span { display: inline-flex; align-items: center; gap: .35rem; }
.trust-line span::before { content: "\2713"; color: var(--good); font-weight: 700; }

.form-grid { display: grid; gap: 1rem; }
@media (min-width: 560px) { .form-grid.cols-2 { grid-template-columns: 1fr 1fr; } }

.consent {
  display: flex; gap: .6rem; align-items: flex-start;
  font-size: var(--t-sm); margin: 1rem 0;
}
.consent input { margin-top: .25rem; width: 1.1rem; height: 1.1rem; flex: 0 0 auto; }

.form-status { margin-top: 1rem; }
.form-success, .form-error {
  border-radius: var(--radius-sm);
  padding: 1rem 1.2rem;
  font-size: var(--t-sm);
}
.form-success { background: #e8f3ec; border: 1px solid #aed3bd; color: #1f5a3c; }
.form-error { background: #fcefe9; border: 1px solid #e3a892; color: #8a3a1c; }
[hidden] { display: none !important; }

.req { color: var(--amber-dark); }

/* trust badges block */
.trust-cards { margin-top: 1.5rem; }
.trust-cards .card h4 { margin: 0 0 .3rem; color: var(--slate); }
.trust-cards .card p { margin: 0; font-size: var(--t-sm); color: var(--muted); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--slate);
  color: #d7dee2;
  margin-top: 3rem;
  padding: 2.4rem 0 2rem;
}
.site-footer a { color: #fff; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.footer-tag { font-size: var(--t-base); color: #fff; max-width: 48ch; margin: 0 0 1.2rem; }
.footer-nav { list-style: none; padding: 0; margin: 0 0 1.4rem; display: flex; flex-wrap: wrap; gap: .4rem 1rem; font-size: var(--t-sm); }
.footer-caveat { font-size: var(--t-sm); color: #cdd6db; max-width: 70ch; margin: 0 0 1rem; }
.footer-legal { font-size: var(--t-sm); color: #fff; font-weight: 600; margin: 0 0 .3rem; }
.footer-copy { font-size: var(--t-xs); color: #aeb9c0; margin: 0; }
.footer-divider { border: 0; border-top: 1px solid rgba(255,255,255,.15); margin: 1.4rem 0; }

/* breadcrumb-ish page intro spacing */
.page-intro { padding-top: 2.6rem; }

/* utility spacing */
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.stack > * + * { margin-top: 1rem; }

/* CTA band */
.cta-band {
  background: var(--slate-mid);
  color: #fff;
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  margin: 2.5rem 0 0;
}
.cta-band h2 { color: #fff; margin-top: 0; }
.cta-band p { color: #dbe3e8; max-width: 52ch; margin: 0 auto 1.2rem; }