/* ============================================
   Red Hill Plumbing & Heating — Custom Styles
   Premium Dark Luxury | Teal + Slate Grey
   ============================================ */

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-dark: #0a0f14;
  --bg-card: #111922;
  --bg-card-hover: #162029;
  --bg-elevated: #1a2530;
  --slate-700: #1e2d3d;
  --slate-600: #2a3f52;
  --slate-500: #3d5a78;
  --slate-400: #6b8aad;
  --slate-300: #9bb5cc;
  --teal-500: #0d9488;
  --teal-400: #14b8a6;
  --teal-600: #0f766e;
  --gold-400: #d4a853;
  --gold-500: #c9a227;
  --gold-300: #e8c976;
  --cream: #f5f0e8;
  --cream-soft: #e8e0d0;
  --white: #ffffff;
  --text-muted: #8fa4b8;
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: 0.3s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-dark);
  color: var(--cream);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: var(--teal-400);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--gold-400);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--cream);
}

/* ---------- Header ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 15, 20, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(13, 148, 136, 0.15);
  transition: background var(--transition), box-shadow var(--transition);
}

.header.scrolled {
  background: rgba(10, 15, 20, 0.96);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-light .logo-text,
.logo-light .logo-sub {
  color: var(--cream);
}

.logo-icon {
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--cream);
  letter-spacing: -0.01em;
}

.logo-sub {
  font-size: 0.75rem;
  color: var(--teal-400);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 500;
}

/* ---------- Nav ---------- */
.nav {
  display: flex;
  align-items: center;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-menu a {
  color: var(--slate-300);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav-menu a:hover {
  color: var(--cream);
  background: rgba(13, 148, 136, 0.12);
}

.nav-cta {
  background: var(--teal-500) !important;
  color: var(--white) !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 600 !important;
  margin-left: 8px;
  transition: background var(--transition), transform var(--transition) !important;
}

.nav-cta:hover {
  background: var(--teal-400) !important;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--cream);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--bg-dark);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10, 15, 20, 0.92) 0%,
    rgba(10, 15, 20, 0.75) 50%,
    rgba(10, 15, 20, 0.88) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 120px 24px 80px;
  max-width: 860px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(13, 148, 136, 0.15);
  border: 1px solid rgba(13, 148, 136, 0.35);
  color: var(--teal-400);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 20px;
  border-radius: 50px;
  margin-bottom: 32px;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.75rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  color: var(--cream);
}

.text-gold {
  color: var(--gold-400);
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--slate-300);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 56px;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: center;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--slate-300);
  font-size: 0.9rem;
  font-weight: 500;
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--slate-500);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  animation: bobble 2s ease-in-out infinite;
}

@keyframes bobble {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--teal-500);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--teal-400);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(13, 148, 136, 0.35);
}

.btn-secondary {
  background: transparent;
  color: var(--cream);
  border: 1px solid var(--slate-500);
}

.btn-secondary:hover {
  border-color: var(--teal-400);
  color: var(--teal-400);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--teal-400);
  border: 1px solid var(--teal-500);
}

.btn-outline:hover {
  background: var(--teal-500);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 18px 36px;
  font-size: 1.05rem;
}

.btn-full {
  width: 100%;
  justify-content: center;
}

/* ---------- Section Shared ---------- */
section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--teal-400);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-bottom: 16px;
}

.section-subtitle {
  color: var(--slate-400);
  font-size: 1.05rem;
}

/* ---------- Services ---------- */
.services {
  background: var(--bg-dark);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--slate-700);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  transition: all var(--transition);
}

.service-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--teal-500);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3), 0 0 0 1px var(--teal-500);
}

.service-icon {
  margin-bottom: 20px;
}

.service-title {
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--cream);
}

.service-card p {
  color: var(--slate-400);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ---------- About ---------- */
.about {
  background: var(--bg-elevated);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-image-wrap {
  position: relative;
}

.about-image {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.about-image img {
  width: 100%;
  height: 450px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.about-accent {
  position: absolute;
  top: -16px;
  right: -16px;
  width: 120px;
  height: 120px;
  background: var(--teal-500);
  border-radius: var(--radius-md);
  z-index: 0;
  opacity: 0.2;
}

.about-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-body {
  color: var(--slate-300);
  font-size: 1rem;
  line-height: 1.8;
}

.about-stats {
  display: flex;
  gap: 40px;
  padding: 28px 0;
  border-top: 1px solid var(--slate-700);
  border-bottom: 1px solid var(--slate-700);
  margin: 8px 0;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--teal-400);
}

.stat-label {
  font-size: 0.82rem;
  color: var(--slate-400);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}

/* ---------- Why Us ---------- */
.why-us {
  background: var(--bg-dark);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.why-item {
  background: var(--bg-card);
  border: 1px solid var(--slate-700);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}

.why-item:hover {
  border-color: var(--teal-500);
  transform: translateY(-2px);
}

.why-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal-500), var(--gold-400));
  opacity: 0;
  transition: opacity var(--transition);
}

.why-item:hover::before {
  opacity: 1;
}

.why-number {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--slate-700);
  line-height: 1;
  margin-bottom: 16px;
  transition: color var(--transition);
}

.why-item:hover .why-number {
  color: var(--slate-600);
}

.why-title {
  font-family: var(--font-body);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--cream);
  margin-bottom: 12px;
}

.why-item p {
  color: var(--slate-400);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ---------- Testimonials ---------- */
.testimonials {
  background: var(--bg-elevated);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--slate-700);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  position: relative;
  transition: all var(--transition);
}

.testimonial-card:hover {
  border-color: rgba(13, 148, 136, 0.4);
  transform: translateY(-2px);
}

.testimonial-quote {
  position: absolute;
  top: 20px;
  right: 24px;
  font-family: var(--font-heading);
  font-size: 5rem;
  line-height: 1;
  color: var(--teal-500);
  opacity: 0.15;
  pointer-events: none;
}

.testimonial-text {
  color: var(--slate-300);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--slate-700);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.testimonial-name {
  font-weight: 600;
  color: var(--cream);
  font-size: 0.9rem;
}

/* ---------- CTA ---------- */
.cta {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.cta-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
}

.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 15, 20, 0.94), rgba(13, 148, 136, 0.3));
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-bottom: 20px;
}

.cta-text {
  color: var(--slate-300);
  font-size: 1.1rem;
  margin-bottom: 40px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

/* ---------- Contact ---------- */
.contact {
  background: var(--bg-dark);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-body {
  color: var(--slate-300);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 36px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-detail {
  display: flex;
  gap: 16px;
}

.contact-detail-icon {
  width: 44px;
  height: 44px;
  background: rgba(13, 148, 136, 0.12);
  border: 1px solid rgba(13, 148, 136, 0.25);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-detail strong {
  display: block;
  color: var(--cream);
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.contact-detail p {
  color: var(--slate-400);
  font-size: 0.88rem;
  line-height: 1.6;
}

.contact-detail a {
  color: var(--teal-400);
}

/* ---------- Form ---------- */
.contact-form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--slate-700);
  border-radius: var(--radius-md);
  padding: 40px;
}

.form-title {
  font-family: var(--font-body);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--cream);
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--slate-300);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-dark);
  border: 1px solid var(--slate-600);
  border-radius: var(--radius-sm);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--slate-500);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--teal-500);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b8aad' stroke-width='2' stroke-linecap='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

.form-group select option {
  background: var(--bg-dark);
  color: var(--cream);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-success {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  padding: 14px 18px;
  background: rgba(13, 148, 136, 0.1);
  border: 1px solid rgba(13, 148, 136, 0.3);
  border-radius: var(--radius-sm);
  color: var(--teal-400);
  font-size: 0.9rem;
  font-weight: 500;
}

/* ---------- Map ---------- */
.map-section {
  padding: 0;
}

.map-container {
  filter: grayscale(0.6) brightness(0.7) contrast(1.1);
  transition: filter var(--transition);
}

.map-container:hover {
  filter: grayscale(0.3) brightness(0.8) contrast(1.05);
}

/* ---------- Footer ---------- */
.footer {
  background: var(--bg-card);
  border-top: 1px solid var(--slate-700);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-desc {
  color: var(--slate-400);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 16px;
  max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--cream);
  margin-bottom: 20px;
}

.footer-links ul,
.footer-contact ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a,
.footer-contact a {
  color: var(--slate-400);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-links a:hover,
.footer-contact a:hover {
  color: var(--teal-400);
}

.footer-contact li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--slate-400);
  font-size: 0.88rem;
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid var(--slate-700);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  color: var(--slate-500);
  font-size: 0.82rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .testimonials-grid .testimonial-card:last-child {
    grid-column: span 2;
    max-width: 50%;
    margin: 0 auto;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  section {
    padding: 72px 0;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--bg-card);
    flex-direction: column;
    align-items: stretch;
    padding: 96px 24px 32px;
    gap: 4px;
    transform: translateX(100%);
    transition: transform 0.35s ease;
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5);
    z-index: 999;
  }

  .nav-menu.open {
    transform: translateX(0);
  }

  .nav-menu a {
    padding: 14px 16px;
    font-size: 1rem;
  }

  .nav-cta {
    margin-left: 0 !important;
    margin-top: 12px;
    text-align: center;
    justify-content: center;
  }

  .hero-content {
    padding: 100px 24px 60px;
  }

  .hero-trust {
    gap: 20px;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-image img {
    height: 350px;
  }

  .about-accent {
    top: -10px;
    right: -10px;
    width: 80px;
    height: 80px;
  }

  .about-stats {
    gap: 24px;
  }

  .why-grid {
    grid-template-columns: 1fr;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .testimonials-grid .testimonial-card:last-child {
    grid-column: auto;
    max-width: 100%;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-form-wrap {
    padding: 28px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .cta-actions {
    flex-direction: column;
    align-items: center;
  }

  .cta-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .about-stats {
    flex-direction: column;
    gap: 20px;
  }
}

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

/* ---------- Scroll Reveal (Progressive Enhancement) ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}