/* ==========================================================================
   NY PLUMBING — HAMILTON HEIGHTS, MANHATTAN
   Clean, Accessible, Modern CSS Design System
   ========================================================================== */

:root {
  --color-navy: #0B1E33;
  --color-navy-light: #162F4D;
  --color-slate: #25364A;
  --color-text-dark: #1E293B;
  --color-text-muted: #64748B;
  --color-bg-light: #F8FAFC;
  --color-bg-alt: #F1F5F9;
  --color-white: #FFFFFF;
  --color-border: #E2E8F0;
  --color-border-subtle: #CBD5E1;
  --color-accent: #D97706;
  --color-accent-hover: #B45309;
  --color-alert-bg: #FEF2F2;
  --color-alert-border: #DC2626;
  --color-alert-text: #991B1B;

  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --max-width: 1200px;
  --content-max-width: 860px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(11, 30, 51, 0.08);
  --shadow-md: 0 4px 6px -1px rgba(11, 30, 51, 0.1), 0 2px 4px -2px rgba(11, 30, 51, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(11, 30, 51, 0.1), 0 4px 6px -4px rgba(11, 30, 51, 0.08);
  --transition: all 0.2s ease-in-out;
}

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

html {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-dark);
  background-color: var(--color-white);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-bottom: 70px; /* Space for sticky mobile call bar */
}

@media (min-width: 769px) {
  body {
    padding-bottom: 0;
  }
}

/* Accessibility: Skip Link & Focus */
.skip-link {
  position: absolute;
  top: -40px;
  left: 10px;
  background: var(--color-navy);
  color: var(--color-white);
  padding: 8px 16px;
  z-index: 9999;
  text-decoration: none;
  font-weight: 700;
  border-radius: var(--radius-sm);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 10px;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-navy);
  line-height: 1.25;
  font-weight: 700;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.15rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.75rem;
  letter-spacing: -0.01em;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.35rem;
  margin-top: 1.35rem;
  margin-bottom: 0.75rem;
}

p {
  margin-bottom: 1.15rem;
  color: var(--color-text-dark);
}

ul, ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.45rem;
}

a {
  color: var(--color-navy);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  transition: var(--transition);
}

a:hover {
  color: var(--color-accent);
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.content-narrow {
  max-width: var(--content-max-width);
  margin-left: auto;
  margin-right: auto;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
}

.brand-title {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--color-navy);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.brand-subtitle {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* Hamburger toggle */
.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.65rem;
  cursor: pointer;
}

.hamburger-icon {
  width: 24px;
  height: 18px;
  display: inline-block;
  position: relative;
}

.hamburger-line,
.hamburger-line::before,
.hamburger-line::after {
  width: 24px;
  height: 2px;
  background-color: var(--color-navy);
  border-radius: 2px;
  position: absolute;
  transition: transform 0.2s ease, top 0.2s ease;
}

.hamburger-line {
  top: 8px;
}

.hamburger-line::before {
  content: "";
  top: -8px;
}

.hamburger-line::after {
  content: "";
  top: 8px;
}

.menu-toggle[aria-expanded="true"] .hamburger-line {
  background-color: transparent;
}

.menu-toggle[aria-expanded="true"] .hamburger-line::before {
  top: 0;
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .hamburger-line::after {
  top: 0;
  transform: rotate(-45deg);
}

/* Navigation Menu */
.nav-menu {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 1.25rem;
  align-items: center;
}

.nav-item {
  position: relative;
  margin: 0;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.4rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-slate);
  text-decoration: none;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-accent);
}

.has-dropdown {
  position: relative;
}

.dropdown-btn {
  background: none;
  border: none;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-slate);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.4rem;
}

.dropdown-btn:hover {
  color: var(--color-accent);
}

.arrow-indicator {
  font-size: 0.75rem;
  transition: transform 0.2s ease;
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 250px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  padding: 0.5rem 0;
  list-style: none;
  z-index: 1050;
}

.dropdown-menu.show {
  display: block;
}

.dropdown-item a {
  display: block;
  padding: 0.55rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-dark);
  text-decoration: none;
}

.dropdown-item a:hover {
  background-color: var(--color-bg-light);
  color: var(--color-accent);
}

.header-cta-wrap {
  display: flex;
  align-items: center;
}

.header-call-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--color-accent);
  color: var(--color-white) !important;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 0.65rem 1.15rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.header-call-btn:hover {
  background-color: var(--color-accent-hover);
  color: var(--color-white);
  transform: translateY(-1px);
}

@media (max-width: 992px) {
  .menu-toggle {
    display: block;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 2px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    padding: 1.25rem 1.5rem;
  }

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

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .nav-item {
    width: 100%;
  }

  .nav-link,
  .dropdown-btn {
    width: 100%;
    justify-content: space-between;
    padding: 0.65rem 0;
    font-size: 1.05rem;
  }

  .dropdown-menu {
    position: static;
    display: none;
    box-shadow: none;
    border: none;
    border-left: 2px solid var(--color-accent);
    padding-left: 0.75rem;
    margin-left: 0.5rem;
    margin-top: 0.25rem;
    margin-bottom: 0.5rem;
  }

  .dropdown-menu.show {
    display: block;
  }

  .dropdown-item a {
    padding: 0.45rem 0.5rem;
    font-size: 0.95rem;
  }

  .header-cta-wrap {
    display: none;
  }
}

/* ==========================================================================
   Breadcrumbs
   ========================================================================== */

.breadcrumb-bar {
  background-color: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
  padding: 0.65rem 0;
  font-size: 0.85rem;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 0.5rem;
  align-items: center;
}

.breadcrumb-item {
  margin: 0;
  display: flex;
  align-items: center;
  color: var(--color-text-muted);
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--color-border-subtle);
}

.breadcrumb-item a {
  color: var(--color-slate);
  text-decoration: none;
}

.breadcrumb-item a:hover {
  text-decoration: underline;
}

.breadcrumb-item.current {
  color: var(--color-navy);
  font-weight: 600;
}

/* ==========================================================================
   Hero Sections
   ========================================================================== */

.hero-section {
  background-color: var(--color-bg-light);
  padding: 3.5rem 0 3rem;
  border-bottom: 1px solid var(--color-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

.hero-badge {
  display: inline-block;
  background-color: var(--color-navy);
  color: #FDE68A;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

.hero-lead {
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--color-slate);
  margin-bottom: 1.75rem;
}

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

.hero-media {
  position: relative;
}

.hero-img,
.featured-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  object-fit: cover;
}

.hero-single {
  text-align: center;
  padding: 3rem 0;
}

.hero-single h1 {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero-single .hero-lead {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.hero-single .hero-actions {
  justify-content: center;
}

/* ==========================================================================
   Buttons & Interactive Elements
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-white) !important;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--color-navy);
  color: var(--color-white) !important;
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--color-navy-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   Content Sections & Cards
   ========================================================================== */

.section {
  padding: 3.5rem 0;
}

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

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 2.5rem;
}

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

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.75rem;
  margin-top: 2rem;
}

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

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-subtle);
  transform: translateY(-2px);
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--color-navy);
}

.card-text {
  font-size: 0.95rem;
  color: var(--color-text-dark);
  flex-grow: 1;
  margin-bottom: 1.25rem;
}

.card-link {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-navy);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  text-decoration: none;
}

.card-link:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

/* Image with Content Box */
.image-content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  margin: 2.5rem 0;
}

@media (min-width: 840px) {
  .image-content-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Callout Box */
.callout-box {
  background-color: var(--color-bg-light);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 1.75rem;
  margin: 2rem 0;
}

.callout-box h3 {
  margin-top: 0;
  color: var(--color-navy);
}

/* Gas Emergency Safety Box */
.safety-alert {
  background-color: var(--color-alert-bg);
  border-left: 4px solid var(--color-alert-border);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 1.5rem;
  margin: 2rem 0;
}

.safety-alert h3 {
  color: var(--color-alert-text);
  margin-top: 0;
}

.safety-alert p {
  color: #7F1D1D;
  margin-bottom: 0.5rem;
}

.safety-alert strong {
  color: #7F1D1D;
}

/* Neighborhood Distinct Card */
.neighborhood-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  margin-bottom: 1.75rem;
  box-shadow: var(--shadow-sm);
}

.neighborhood-card h3 {
  color: var(--color-navy);
  margin-top: 0;
  font-size: 1.45rem;
  border-bottom: 2px solid var(--color-bg-light);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
}

/* FAQ Accordion / Cards */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 2rem;
}

.faq-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.75rem;
  box-shadow: var(--shadow-sm);
}

.faq-question {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 0.65rem;
}

.faq-answer {
  color: var(--color-text-dark);
  margin-bottom: 0;
  font-size: 0.98rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background-color: var(--color-navy);
  color: #CBD5E1;
  padding: 3.5rem 0 1.5rem;
  margin-top: auto;
  border-top: 3px solid var(--color-accent);
}

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

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .footer-grid {
    grid-template-columns: 1.3fr 1fr 1fr;
  }
}

.footer-col h3,
.footer-col h4 {
  color: var(--color-white);
  font-size: 1.15rem;
  margin-bottom: 1.15rem;
  letter-spacing: -0.01em;
}

.footer-desc {
  color: #94A3B8;
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.footer-service-areas {
  color: #E2E8F0;
  font-size: 0.92rem;
  line-height: 1.5;
  margin-bottom: 1rem;
}

.footer-phone-cta {
  display: inline-block;
  background-color: var(--color-accent);
  color: var(--color-white) !important;
  font-weight: 700;
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  margin-bottom: 1.25rem;
}

.footer-phone-cta:hover {
  background-color: var(--color-accent-hover);
  color: var(--color-white);
}

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

.footer-nav li {
  margin-bottom: 0.55rem;
}

.footer-nav a {
  color: #CBD5E1;
  text-decoration: none;
  font-size: 0.92rem;
  transition: var(--transition);
}

.footer-nav a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

.footer-privacy-text {
  font-size: 0.85rem;
  color: #94A3B8;
  line-height: 1.5;
  margin-top: 1rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  font-size: 0.85rem;
  color: #94A3B8;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-bottom p {
  color: #94A3B8;
  margin-bottom: 0;
}

/* ==========================================================================
   Sticky Mobile Call Bar
   ========================================================================== */

.mobile-call-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-navy);
  border-top: 2px solid var(--color-accent);
  padding: 0.65rem 1rem;
  z-index: 9990;
  box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.15);
}

@media (max-width: 768px) {
  .mobile-call-bar {
    display: block;
  }
}

.mobile-call-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  background-color: var(--color-accent);
  color: var(--color-white) !important;
  font-weight: 700;
  font-size: 1.05rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  min-height: 44px;
}

.mobile-call-btn:hover {
  background-color: var(--color-accent-hover);
}