/* 21Degree Heating Ltd — proposal build
   Design direction: workshop-green (brand palette: orange #F39200 / dark grey #3C3C3B on a light neutral base)
*/

:root {
  --colour-orange: #F39200;
  --colour-orange-dark: #9C5D00; /* darkened for AA-safe text/links on light backgrounds */
  --colour-grey: #3C3C3B;
  --colour-grey-darker: #232322;
  --colour-bg: #FAF6EF;
  --colour-bg-alt: #F1EAD9;
  --colour-white: #FFFFFF;
  --colour-text: #2A2A29;
  --banner-h: 44px;
  --radius: 14px;
  --font-heading: 'Fraunces', 'Playfair Display', Georgia, serif;
  --font-body: 'Source Sans 3', 'Source Sans Pro', Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  padding-top: calc(var(--banner-h));
  font-family: var(--font-body);
  color: var(--colour-text);
  background-color: var(--colour-bg);
  background-image:
    radial-gradient(circle at 20% 10%, rgba(60,60,59,0.03) 0, transparent 45%),
    radial-gradient(circle at 80% 60%, rgba(243,146,0,0.04) 0, transparent 50%);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--colour-grey-darker);
  line-height: 1.2;
  font-weight: 600;
}

a { color: var(--colour-orange-dark); }
a:hover, a:focus { color: var(--colour-grey-darker); }

img { max-width: 100%; display: block; height: auto; border-radius: var(--radius); }

.container {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.container-wide {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---------- Proposal banner ---------- */
.preview-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--banner-h);
  background: #14140f;
  color: #f2f2f0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  padding: 0 0.75rem;
  font-family: var(--font-body);
  border-bottom: 1px solid #000;
}

/* ---------- Preview watermark ---------- */
.preview-watermark {
  position: fixed;
  inset: 0;
  z-index: 5000;
  pointer-events: none;
  overflow: hidden;
}

.preview-watermark span {
  position: absolute;
  display: block;
  font-family: var(--font-body);
  font-weight: 800;
  font-size: clamp(2.2rem, 6vw, 4rem);
  color: rgba(60, 60, 59, 0.06);
  transform: rotate(-30deg);
  white-space: nowrap;
  letter-spacing: 0.08em;
}

.preview-watermark span.wm1 { top: 6%;  left: 4%; }
.preview-watermark span.wm2 { top: 30%; left: 55%; }
.preview-watermark span.wm3 { top: 52%; left: 10%; }
.preview-watermark span.wm4 { top: 74%; left: 48%; }
.preview-watermark span.wm5 { top: 92%; left: 5%; }

/* ---------- Header ---------- */
.site-header {
  background: var(--colour-white);
  border-bottom: 1px solid rgba(60,60,59,0.12);
}

.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-link { flex-shrink: 0; }
.logo { height: 44px; width: auto; border-radius: 0; }

.header-phone {
  margin-left: auto;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--colour-grey-darker);
  text-decoration: none;
  border: 2px solid var(--colour-orange);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  white-space: nowrap;
}
.header-phone:hover { background: var(--colour-orange); color: var(--colour-grey-darker); }

.nav-toggle {
  display: none;
  background: var(--colour-grey);
  color: var(--colour-white);
  border: none;
  border-radius: 8px;
  padding: 0.5rem 0.8rem;
  font-size: 0.95rem;
  cursor: pointer;
}

.primary-nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

.primary-nav a {
  text-decoration: none;
  color: var(--colour-grey-darker);
  font-weight: 600;
  font-size: 0.98rem;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}
.primary-nav a:hover,
.primary-nav a[aria-current="page"] {
  border-bottom-color: var(--colour-orange);
  color: var(--colour-grey-darker);
}

@media (max-width: 760px) {
  .header-inner { flex-wrap: wrap; }
  .nav-toggle { display: block; order: 3; }
  .header-phone { order: 2; margin-left: auto; }
  .primary-nav {
    order: 4;
    width: 100%;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }
  .primary-nav.open { max-height: 260px; }
  .primary-nav ul {
    flex-direction: column;
    gap: 0;
    padding-top: 0.5rem;
    border-top: 1px solid rgba(60,60,59,0.12);
  }
  .primary-nav a { display: block; padding: 0.65rem 0; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 5rem 1.25rem 4.5rem;
  text-align: center;
  color: var(--colour-white);
  background-size: cover;
  background-position: center;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(20,20,15,0.72), rgba(20,20,15,0.55));
}

.hero-content {
  position: relative;
  max-width: 640px;
  margin: 0 auto;
}

.hero h1 {
  color: var(--colour-white);
  font-size: clamp(2.1rem, 5vw, 3rem);
  margin: 0 0 0.5rem;
}

.hero .tagline {
  font-size: 1.15rem;
  margin: 0 0 1.25rem;
  color: #f4ead8;
}

.hero p.lede {
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto 2rem;
}

.button-row {
  display: flex;
  gap: 0.9rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  border: 2px solid transparent;
  font-size: 1rem;
}

.btn-primary {
  background: var(--colour-grey-darker);
  color: var(--colour-white);
}
.btn-primary:hover { background: #000; color: var(--colour-white); }

.btn-secondary {
  background: transparent;
  border-color: var(--colour-white);
  color: var(--colour-white);
}
.btn-secondary:hover { background: rgba(255,255,255,0.15); color: var(--colour-white); }

.btn-outline {
  background: transparent;
  border-color: var(--colour-grey-darker);
  color: var(--colour-grey-darker);
}
.btn-outline:hover { background: var(--colour-grey-darker); color: var(--colour-white); }

/* ---------- Sections ---------- */
main { position: relative; z-index: 1; }

.section {
  padding: 3.5rem 1.25rem;
}

.section-alt { background: var(--colour-bg-alt); }

.section h2 {
  text-align: center;
  font-size: clamp(1.6rem, 3.5vw, 2.1rem);
  margin-bottom: 1.75rem;
}

.section > .container h2,
.section > .container-wide h2 { margin-top: 0; }

/* ---------- Cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--colour-white);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: 0 6px 18px rgba(60,60,59,0.08);
  border-top: 4px solid var(--colour-orange);
}

.card h3 {
  font-size: 1.15rem;
  margin: 0 0 0.6rem;
}

.card p { margin: 0; }

/* ---------- Numbered services list ---------- */
.service-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: service-counter;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.service-item {
  counter-increment: service-counter;
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1rem 1.25rem;
  align-items: start;
  background: var(--colour-white);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: 0 6px 18px rgba(60,60,59,0.06);
}

.service-item::before {
  content: counter(service-counter);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--colour-grey-darker);
  background: var(--colour-orange);
  border-radius: 50%;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-item h3 {
  margin: 0.15rem 0 0.5rem;
  font-size: 1.2rem;
}

.service-item p { margin: 0 0 0.9rem; }

.service-item img {
  margin-top: 0.5rem;
  max-width: 320px;
}

@media (max-width: 560px) {
  .service-item { grid-template-columns: 1fr; }
  .service-item::before { margin-bottom: 0.25rem; }
  .service-item img { max-width: 100%; }
}

/* ---------- Gallery ---------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.gallery-grid img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

/* ---------- Contact page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 760px) {
  .contact-grid { grid-template-columns: 1fr 1.2fr; }
}

.contact-details h2 { text-align: left; }

.contact-details dl {
  margin: 0;
}

.contact-details dt {
  font-weight: 700;
  color: var(--colour-grey-darker);
  margin-top: 1rem;
}

.contact-details dd {
  margin: 0.15rem 0 0;
}

.contact-details a.tel-link {
  font-size: 1.2rem;
  font-weight: 700;
}

form.enquiry-form {
  background: var(--colour-white);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: 0 6px 18px rgba(60,60,59,0.08);
}

.form-row { margin-bottom: 1.1rem; }

.form-row label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--colour-grey-darker);
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid rgba(60,60,59,0.3);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--colour-bg);
}

.form-row input:focus,
.form-row textarea:focus {
  outline: 2px solid var(--colour-orange);
  outline-offset: 1px;
}

.form-error {
  color: #8a1f11;
  font-size: 0.85rem;
  margin-top: 0.3rem;
  display: none;
}

.form-row.has-error .form-error { display: block; }
.form-row.has-error input,
.form-row.has-error textarea { border-color: #8a1f11; }

.form-status {
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  border-radius: 8px;
  display: none;
}

.form-status.visible { display: block; }

.form-status.success {
  background: #e7f2e6;
  color: #204e1e;
}

.form-status.failure {
  background: #f7e6e3;
  color: #7a2214;
}

.form-note {
  font-size: 0.85rem;
  color: var(--colour-grey);
  margin-top: 0.75rem;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--colour-grey-darker);
  color: #e9e6df;
  padding: 3rem 1.25rem 1.5rem;
}

.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}

.site-footer h2, .site-footer h3 { color: var(--colour-white); }
.site-footer h2 { font-size: 1.3rem; }
.site-footer h3 { font-size: 1rem; text-transform: uppercase; letter-spacing: 0.04em; }

.site-footer a { color: #f4c98a; }
.site-footer a:hover { color: var(--colour-white); }

.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 0.4rem; }

.footer-bottom {
  max-width: 1080px;
  margin: 0 auto;
  padding-top: 1.25rem;
  font-size: 0.82rem;
  color: #b9b6ae;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
}

.proposal-note {
  font-weight: 600;
  color: #f4c98a;
}

/* ---------- Utility ---------- */
.centre-text { text-align: center; }
.narrow { max-width: 640px; margin-left: auto; margin-right: auto; }