/* ==========================================================================
   NJ LEAK DETECTION — PRINCETON, NJ
   Production Stylesheet — Accessible, High-Performance, Editorial Design
   ========================================================================== */

:root {
  --color-primary: #0b2545;       /* Deep Maritime Navy */
  --color-primary-light: #133c55; /* Refined Slate Blue */
  --color-secondary: #0077b6;     /* Clean Water Blue */
  --color-secondary-hover: #005f94;
  --color-accent: #d90429;        /* High-visibility Call Accent */
  --color-accent-hover: #b70322;
  --color-water-tint: #f0f7fb;    /* Light Water Surface Background */
  --color-water-border: #cfe2f3;
  --color-white: #ffffff;
  --color-off-white: #f8fafc;
  --color-gray-light: #e2e8f0;
  --color-gray-border: #cbd5e1;
  --color-gray: #64748b;
  --color-gray-dark: #1e293b;

  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.07);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition: all 0.22s ease-in-out;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  color: var(--color-gray-dark);
  line-height: 1.68;
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.25;
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2.1rem, 4.2vw, 3.2rem);
  letter-spacing: -0.025em;
  font-weight: 800;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  letter-spacing: -0.015em;
  margin-top: 2rem;
  margin-bottom: 1.2rem;
}

h3 {
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  margin-top: 1.5rem;
  margin-bottom: 0.8rem;
}

p {
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
  color: #334155;
}

a {
  color: var(--color-secondary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: var(--transition);
}

a:hover, a:focus {
  color: var(--color-primary);
}

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

ul, ol {
  margin-bottom: 1.4rem;
  padding-left: 1.6rem;
  color: #334155;
}

li {
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
}

/* TOP ANNOUNCEMENT BAR */
.header-top {
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 0.875rem;
  padding: 0.5rem 1rem;
}

.header-top-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.header-top a {
  color: var(--color-white);
  text-decoration: none;
  font-weight: 600;
}

.header-top a:hover {
  text-decoration: underline;
}

/* HEADER & NAVIGATION */
.header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-gray-light);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--color-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  letter-spacing: -0.02em;
}

.logo:hover {
  color: var(--color-secondary);
}

.nav-menu {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 1.8rem;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--color-gray-dark);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.5rem 0.2rem;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

.nav-link:hover, .nav-link:focus {
  color: var(--color-secondary);
  border-bottom-color: var(--color-secondary);
}

/* DROPDOWN MENU */
.nav-item-dropdown {
  position: relative;
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--color-white);
  min-width: 270px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-md);
  padding: 0.6rem 0;
  z-index: 1001;
}

.nav-item-dropdown:hover .dropdown-menu,
.nav-item-dropdown:focus-within .dropdown-menu,
.nav-item-dropdown.open .dropdown-menu {
  display: block;
}

.dropdown-item {
  display: block;
  padding: 0.65rem 1.25rem;
  color: var(--color-gray-dark);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: var(--transition);
}

.dropdown-item:hover, .dropdown-item:focus {
  background-color: var(--color-water-tint);
  color: var(--color-secondary);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  color: var(--color-primary);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.4rem;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  line-height: 1.2;
}

.btn-phone {
  background-color: var(--color-accent);
  color: var(--color-white) !important;
  box-shadow: 0 2px 4px rgba(217, 4, 41, 0.25);
}

.btn-phone:hover, .btn-phone:focus {
  background-color: var(--color-accent-hover);
  color: var(--color-white) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(217, 4, 41, 0.35);
}

.btn-secondary {
  background-color: var(--color-primary);
  color: var(--color-white) !important;
}

.btn-secondary:hover, .btn-secondary:focus {
  background-color: var(--color-primary-light);
  color: var(--color-white) !important;
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary) !important;
  border: 2px solid var(--color-primary);
}

.btn-outline:hover, .btn-outline:focus {
  background-color: var(--color-primary);
  color: var(--color-white) !important;
}

/* BREADCRUMBS */
.breadcrumbs-bar {
  background-color: var(--color-off-white);
  border-bottom: 1px solid var(--color-gray-light);
  padding: 0.75rem 1.5rem;
  font-size: 0.88rem;
}

.breadcrumbs-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.breadcrumbs-inner ol {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.4rem;
  color: var(--color-gray);
}

.breadcrumbs-inner li+li::before {
  content: "/";
  margin-right: 0.4rem;
  color: var(--color-gray);
}

.breadcrumbs-inner a {
  color: var(--color-secondary);
  text-decoration: none;
}

.breadcrumbs-inner a:hover {
  text-decoration: underline;
}

.breadcrumbs-inner [aria-current="page"] {
  color: var(--color-gray-dark);
  font-weight: 600;
}

/* HERO SECTION */
.hero {
  background: linear-gradient(180deg, #ffffff 0%, var(--color-water-tint) 100%);
  border-bottom: 1px solid var(--color-water-border);
  padding: 3.5rem 1.5rem 4rem;
}

.hero-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  background-color: var(--color-water-border);
  color: var(--color-primary);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.hero-content h1 {
  margin-bottom: 1.2rem;
}

.hero-content p.lead {
  font-size: 1.2rem;
  line-height: 1.6;
  color: #1e293b;
  margin-bottom: 2rem;
  font-weight: 400;
}

.hero-cta-box {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

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

.hero-image-wrap img {
  width: 100%;
  height: auto;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-water-border);
}

/* MAIN CONTENT CONTAINER */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.content-readable {
  max-width: 900px;
  margin: 0 auto;
}

.section {
  padding: 3.5rem 0;
}

.section-alt {
  background-color: var(--color-off-white);
  border-top: 1px solid var(--color-gray-light);
  border-bottom: 1px solid var(--color-gray-light);
}

/* EDITORIAL GRID & CARDS */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin: 2rem 0;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin: 2rem 0;
}

.card {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-water-border);
}

.card h3 {
  margin-top: 0;
  color: var(--color-primary);
}

.card p:last-child {
  margin-bottom: 0;
}

/* SECTION WITH IMAGE */
.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  margin: 3rem 0;
}

.split-section.reverse {
  direction: rtl;
}

.split-section.reverse > * {
  direction: ltr;
}

.split-image img {
  width: 100%;
  height: auto;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-gray-light);
}

/* CALL BOX CTA */
.call-box {
  background-color: var(--color-water-tint);
  border-left: 5px solid var(--color-secondary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 2rem;
  margin: 3rem 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.call-box h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

.call-box p {
  margin-bottom: 0.5rem;
}

.call-box.highlight {
  background-color: #fef2f2;
  border-left-color: var(--color-accent);
}

/* CHECKLIST & WARNING BOX */
.warning-box {
  background-color: #fffbeb;
  border: 1px solid #fef3c7;
  border-left: 5px solid #d97706;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 1.5rem;
  margin: 2rem 0;
}

.warning-box h4 {
  color: #92400e;
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.checklist {
  list-style: none;
  padding-left: 0;
}

.checklist li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.75rem;
}

.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-secondary);
  font-weight: 800;
  font-size: 1.1rem;
}

/* PROCESS STEPS */
.process-steps {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin: 2rem 0;
}

.step-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  background: var(--color-white);
  padding: 1.5rem;
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-md);
}

.step-number {
  background-color: var(--color-secondary);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.2rem;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-body h4 {
  color: var(--color-primary);
  margin-bottom: 0.35rem;
  font-size: 1.2rem;
}

.step-body p {
  margin-bottom: 0;
}

/* FAQ ACCORDION / LIST */
.faq-section {
  margin: 3.5rem 0 2rem;
}

.faq-item {
  border-bottom: 1px solid var(--color-gray-light);
  padding: 1.5rem 0;
}

.faq-item:first-of-type {
  border-top: 1px solid var(--color-gray-light);
}

.faq-item h3 {
  margin-top: 0;
  margin-bottom: 0.65rem;
  color: var(--color-primary);
  font-size: 1.25rem;
}

.faq-item p:last-child {
  margin-bottom: 0;
}

/* GAS SAFETY ADVISORY */
.gas-safety-box {
  background-color: #fff1f2;
  border: 2px dashed #e11d48;
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
}

.gas-safety-box h4 {
  color: #be123c;
  margin-top: 0;
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.gas-safety-box p {
  margin-bottom: 0;
  font-size: 0.95rem;
  color: #881337;
}

/* FOOTER */
.footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 3.5rem 0 2rem;
}

.footer a {
  color: #93c5fd;
  text-decoration: underline;
}

.footer a:hover {
  color: var(--color-white);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 1.15rem;
  margin-bottom: 1.2rem;
  border-bottom: 2px solid var(--color-secondary);
  padding-bottom: 0.4rem;
  display: inline-block;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li {
  margin-bottom: 0.65rem;
  font-size: 0.95rem;
}

.footer-col p {
  color: #cbd5e1;
  font-size: 0.95rem;
}

.footer-bottom {
  border-top: 1px solid #1e3a5f;
  padding-top: 2rem;
  font-size: 0.88rem;
  color: #94a3b8;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-bottom p {
  color: #94a3b8;
  font-size: 0.88rem;
  margin-bottom: 0;
}

/* STICKY MOBILE CALL BAR */
.sticky-call-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-white);
  padding: 0.75rem 1rem;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.12);
  z-index: 999;
  border-top: 1px solid var(--color-gray-light);
}

.sticky-call-bar .btn-phone {
  width: 100%;
  font-size: 1.05rem;
  padding: 0.85rem;
}

/* RESPONSIVE BREAKPOINTS */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .split-section {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
  .split-section.reverse {
    direction: ltr;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  body {
    padding-bottom: 70px; /* Space for sticky call bar */
  }

  .mobile-toggle {
    display: block;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    border-bottom: 1px solid var(--color-gray-light);
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-item-dropdown {
    width: 100%;
  }

  .dropdown-menu {
    position: static;
    display: none;
    box-shadow: none;
    border: none;
    padding-left: 1rem;
    background-color: var(--color-water-tint);
    margin-top: 0.5rem;
  }

  .nav-item-dropdown.open .dropdown-menu {
    display: block;
  }

  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }

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

  .sticky-call-bar {
    display: block;
  }

  .header .btn-phone {
    display: none; /* Mobile user has sticky bar */
  }
}