/* Rapid Flow Plumbing - case-study mini-site
   Inspired by trade-business layout patterns (icon trust strip, wave/diagonal
   section breaks, service grid) seen on real plumbing-company sites. Original
   build: new brand, copy, and a blue/amber palette (not the reference's
   blue/green). */

:root {
  --blue-deep: #0f3d5c;
  --blue: #1c6ea4;
  --blue-light: #eaf3fa;
  --amber: #f2994a;
  --amber-dark: #dc7826;
  --ink: #12242e;
  --gray: #5a6b74;
  --white: #ffffff;
  --font-head: "Poppins", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2rem, 4.5vw, 3.1rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); }
p { margin: 0 0 1em; color: var(--gray); }

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

.back-link {
  background: var(--ink);
  color: rgba(255,255,255,0.8);
  font-size: 0.78rem;
  text-align: center;
  padding: 8px 0;
}
.back-link a { color: var(--white); font-weight: 600; }
.back-link a:hover { text-decoration: underline; }

/* Top bar */
.top-bar {
  background: var(--blue-deep);
  color: var(--white);
  font-size: 0.82rem;
}
.top-bar .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 24px;
  flex-wrap: wrap;
  gap: 8px;
}
.top-bar .badge {
  background: var(--amber);
  color: var(--ink);
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Header / nav */
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
}
.logo {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--blue-deep);
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo .drop {
  width: 30px; height: 30px;
  background: var(--blue);
  border-radius: 50% 50% 50% 0;
  transform: rotate(45deg);
  display: inline-block;
}
nav.main-nav ul { display: flex; gap: 30px; }
nav.main-nav a {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--ink);
  padding-bottom: 3px;
  border-bottom: 2px solid transparent;
}
nav.main-nav a:hover, nav.main-nav a.active { color: var(--blue); border-color: var(--amber); }

.btn {
  display: inline-block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.88rem;
  padding: 13px 26px;
  border-radius: 6px;
  border: 2px solid transparent;
}
.btn-amber { background: var(--amber); color: var(--white); }
.btn-amber:hover { background: var(--amber-dark); }
.btn-blue { background: var(--blue); color: var(--white); }
.btn-blue:hover { background: var(--blue-deep); }
.btn-outline { border-color: var(--white); color: var(--white); }
.btn-outline:hover { background: rgba(255,255,255,0.12); }

/* Hero */
.hero {
  background: linear-gradient(120deg, var(--blue-deep), var(--blue));
  color: var(--white);
  padding: 70px 0 100px;
  position: relative;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: center;
}
.hero .eyebrow {
  color: var(--amber);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.82rem;
}
.hero p.lead { color: rgba(255,255,255,0.88); font-size: 1.05rem; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 20px; }
.hero-photo {
  aspect-ratio: 4/3;
  border-radius: 14px;
  border: 2px dashed rgba(255,255,255,0.5);
  display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 20px;
  color: rgba(255,255,255,0.75);
  font-size: 0.85rem;
  background: rgba(255,255,255,0.06);
}

.diagonal-cut {
  height: 60px;
  background: var(--white);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
  margin-top: -1px;
}

/* Trust strip */
.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: -70px;
  position: relative;
  z-index: 2;
}
.trust-card {
  background: var(--white);
  border-radius: 10px;
  padding: 22px 18px;
  box-shadow: 0 12px 30px rgba(15,61,92,0.14);
  text-align: center;
}
.trust-card .icon {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--blue-light);
  color: var(--blue);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 12px;
  font-size: 1.3rem;
}
.trust-card h4 { font-size: 0.95rem; margin-bottom: 4px; }
.trust-card p { font-size: 0.82rem; margin: 0; }

/* Sections */
.section { padding: 90px 0 60px; }
.section-tight { padding: 60px 0; }
.bg-light { background: var(--blue-light); }
.center { text-align: center; }
.section-intro { max-width: 640px; margin: 0 auto 40px; }

/* Services grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.service-card {
  background: var(--white);
  border: 1px solid #e3ecf2;
  border-radius: 10px;
  padding: 26px 22px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: 0 14px 30px rgba(15,61,92,0.1); }
.service-card .icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--blue-deep);
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
  font-size: 1.2rem;
}
.service-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.service-card p { font-size: 0.9rem; margin: 0; }

/* Split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.photo-box {
  aspect-ratio: 4/3;
  border-radius: 12px;
  border: 2px dashed #c7d6df;
  background: var(--blue-light);
  display: flex; align-items: center; justify-content: center;
  text-align: center; color: var(--gray); font-size: 0.85rem; padding: 20px;
}
img.hero-photo, img.photo-box {
  border: none;
  background: none;
  padding: 0;
  display: block;
  width: 100%;
  object-fit: cover;
}
.check-list li { display: flex; gap: 10px; margin-bottom: 12px; }
.check-list .tick {
  flex: 0 0 20px; width: 20px; height: 20px; border-radius: 50%;
  background: var(--amber); color: var(--white); font-size: 0.7rem;
  display: flex; align-items: center; justify-content: center; margin-top: 2px;
}

/* Testimonials */
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card {
  background: var(--white);
  border-radius: 10px;
  padding: 24px 22px;
  box-shadow: 0 8px 22px rgba(15,61,92,0.08);
}
.testimonial-card .stars { color: var(--amber); margin-bottom: 10px; letter-spacing: 2px; }
.testimonial-card p { font-style: italic; color: var(--ink); font-size: 0.92rem; }
.testimonial-card .cite { font-size: 0.8rem; color: var(--gray); font-style: normal; margin-top: 10px; }

/* CTA band */
.cta-band {
  background: var(--blue-deep);
  color: var(--white);
  text-align: center;
  padding: 60px 0;
}
.cta-band .btn-amber { margin-top: 10px; }

/* Service area */
.area-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px 24px; margin-top: 20px; }
.area-list li { font-size: 0.92rem; display: flex; gap: 8px; align-items: center; }
.area-list li::before { content: "📍"; font-size: 0.8rem; }

/* Footer */
.site-footer { background: var(--ink); color: rgba(255,255,255,0.8); padding: 50px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 40px; padding-bottom: 30px; }
.footer-grid h4 { color: var(--white); font-size: 1rem; margin-bottom: 14px; }
.footer-grid li { margin-bottom: 8px; font-size: 0.88rem; }
.footer-grid a:hover { color: var(--amber); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.14); padding-top: 18px; font-size: 0.76rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

/* Contact form */
.contact-layout { display: grid; grid-template-columns: 1.2fr 1fr; gap: 50px; }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: 0.85rem; font-weight: 700; margin-bottom: 6px; color: var(--ink); }
.form-field input, .form-field textarea {
  width: 100%; padding: 13px 14px; border: 1px solid #cdd9e0; border-radius: 8px;
  font-family: var(--font-body); font-size: 1rem;
}
.form-field textarea { min-height: 130px; resize: vertical; }
.form-success {
  display: none; background: var(--blue-light); border: 1px solid #cdd9e0; border-radius: 8px;
  padding: 14px 16px; margin-bottom: 18px; font-weight: 600; color: var(--blue-deep);
}
.form-success.show { display: block; }
.info-card { background: var(--blue-light); border-radius: 12px; padding: 30px; }
.info-card li { display: flex; gap: 10px; margin-bottom: 16px; font-size: 0.92rem; }

@media (max-width: 900px) {
  .hero-grid, .split, .contact-layout { grid-template-columns: 1fr; }
  .trust-strip, .services-grid, .testimonial-grid, .footer-grid, .area-list { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .site-header .wrap { flex-wrap: wrap; row-gap: 14px; }
  nav.main-nav { width: 100%; order: 3; }
  nav.main-nav ul { flex-wrap: wrap; gap: 12px 18px; }
  .trust-strip, .services-grid, .testimonial-grid, .footer-grid, .area-list { grid-template-columns: 1fr; }
  .section { padding: 60px 0 40px; }
}