/* ==========================================================================
   NY PLUMBING — BROWNSVILLE, BROOKLYN
   Shared Design System & Responsive Stylesheet
   ========================================================================== */

:root {
  --color-primary: #0b1e33;
  --color-primary-light: #162f4d;
  --color-primary-dark: #06101c;
  --color-secondary: #1e3a8a;
  --color-accent: #d97706;
  --color-accent-hover: #b45309;
  --color-accent-active: #92400e;
  --color-text-main: #1e293b;
  --color-text-muted: #475569;
  --color-text-light: #64748b;
  --color-bg-white: #ffffff;
  --color-bg-light: #f8fafc;
  --color-bg-card: #ffffff;
  --color-border: #e2e8f0;
  --color-border-hover: #cbd5e1;
  --color-danger-bg: #fef2f2;
  --color-danger-border: #fca5a5;
  --color-danger-text: #991b1b;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --container-max-width: 1200px;
  --container-padding: 1.5rem;
  --border-radius-sm: 6px;
  --border-radius-md: 10px;
  --border-radius-lg: 16px;
  --box-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --box-shadow-md: 0 4px 12px rgba(11, 30, 51, 0.08);
  --box-shadow-lg: 0 10px 25px rgba(11, 30, 51, 0.12);
  --transition: all 0.25s ease-in-out;
}

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

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

body {
  font-family: var(--font-family);
  color: var(--color-text-main);
  background-color: var(--color-bg-white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 72px; /* Prevent sticky mobile call bar from covering content */
}

@media (min-width: 992px) {
  body {
    padding-bottom: 0;
  }
}

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

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

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

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

/* Containers & Grid */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.grid {
  display: grid;
  gap: 2rem;
}

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

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

.grid-4 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

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

h1 {
  font-size: clamp(2rem, 4vw + 1rem, 2.75rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.6rem, 2.5vw + 0.8rem, 2.1rem);
  margin-bottom: 1.25rem;
}

h3 {
  font-size: 1.35rem;
}

p {
  margin-bottom: 1.25rem;
}

p.lead, .hero-intro {
  font-size: 1.15rem;
  line-height: 1.7;
  color: #334155;
  margin-bottom: 1.75rem;
}

.text-center {
  text-align: center;
}

.section-header {
  margin-bottom: 2.5rem;
}

.section-lead {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Header & Navigation */
.site-header {
  background-color: var(--color-primary);
  border-bottom: 3px solid var(--color-accent);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--box-shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0.85rem var(--container-padding);
}

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

.brand-text {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.brand-subtext {
  font-size: 0.75rem;
  color: #94a3b8;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav-toggle {
  background: transparent;
  border: 1px solid #334155;
  color: #ffffff;
  padding: 0.5rem;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
}

@media (min-width: 992px) {
  .nav-toggle {
    display: none;
  }
}

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

.hamburger-inner, .hamburger-inner::before, .hamburger-inner::after {
  width: 24px;
  height: 2px;
  background-color: #ffffff;
  position: absolute;
  transition: transform 0.2s ease;
}

.hamburger-inner {
  top: 50%;
  transform: translateY(-50%);
}

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

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

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

.nav-toggle[aria-expanded="true"] .hamburger-inner::before {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger-inner::after {
  transform: translateY(-8px) rotate(-45deg);
}

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

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

.nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.nav-link {
  color: #f1f5f9;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  display: block;
  padding: 0.5rem 0;
}

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

.dropdown {
  position: relative;
}

.dropdown-toggle {
  background: none;
  border: none;
  color: #f1f5f9;
  font-weight: 600;
  font-size: 1rem;
  font-family: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.5rem 0;
}

.dropdown-chevron {
  width: 16px;
  height: 16px;
  transition: transform 0.2s ease;
}

.dropdown.is-open .dropdown-chevron {
  transform: rotate(180deg);
}

.dropdown-menu {
  display: none;
  list-style: none;
  padding: 0.5rem 0 0.5rem 1rem;
  margin: 0.5rem 0;
  border-left: 3px solid var(--color-accent);
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
  gap: 0.35rem;
}

.dropdown.is-open .dropdown-menu {
  display: flex;
  flex-direction: column;
}

.dropdown-link {
  color: #cbd5e1;
  text-decoration: none;
  font-size: 0.95rem;
  display: block;
  padding: 0.45rem 0.75rem;
  border-radius: 4px;
  transition: var(--transition);
}

.dropdown-link:hover, .dropdown-link.active {
  color: var(--color-accent);
  background-color: rgba(255, 255, 255, 0.08);
}

.nav-cta-wrap {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid #334155;
}

.header-call-btn {
  background-color: var(--color-accent);
  color: #ffffff !important;
  text-decoration: none !important;
  font-weight: 700;
  padding: 0.65rem 1.25rem;
  border-radius: var(--border-radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
  min-height: 44px;
}

.header-call-btn:hover {
  background-color: var(--color-accent-hover);
  color: #ffffff !important;
}

.phone-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

@media (min-width: 992px) {
  .nav-menu {
    display: flex !important;
    position: static;
    background-color: transparent;
    padding: 0;
    box-shadow: none;
    border-bottom: none;
    align-items: center;
    gap: 2rem;
  }
  
  .nav-list {
    flex-direction: row;
    align-items: center;
    gap: 1.75rem;
  }
  
  .nav-link {
    padding: 0.5rem 0;
    font-size: 0.95rem;
  }
  
  .dropdown {
    position: relative;
  }

  .dropdown-toggle {
    padding: 0.5rem 0;
    font-size: 0.95rem;
    gap: 0.35rem;
    cursor: pointer;
  }
  
  .dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    background-color: #0b1e33;
    min-width: 280px;
    padding: 0.5rem 0;
    margin: 0;
    border-radius: var(--border-radius-sm);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.15);
    z-index: 10000;
  }

  /* Seamless hover bridge */
  .dropdown-menu::before {
    content: "";
    position: absolute;
    top: -10px;
    left: 0;
    right: 0;
    height: 10px;
    background: transparent;
  }
  
  .dropdown:hover .dropdown-menu,
  .dropdown:focus-within .dropdown-menu,
  .dropdown.is-open .dropdown-menu {
    display: flex;
    flex-direction: column;
  }
  
  .dropdown-link {
    padding: 0.7rem 1.25rem;
    font-size: 0.925rem;
    color: #e2e8f0;
    font-weight: 500;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 0;
    transition: all 0.2s ease;
  }

  .dropdown-menu li:last-child .dropdown-link {
    border-bottom: none;
  }
  
  .dropdown-link:hover,
  .dropdown-link.active {
    background-color: #162f4d;
    color: var(--color-accent);
    padding-left: 1.5rem;
  }
  
  .nav-cta-wrap {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
  }
}

/* Breadcrumbs */
.breadcrumb-container {
  background-color: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 0;
  font-size: 0.875rem;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

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

.breadcrumb-item a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

.breadcrumb-separator {
  margin: 0 0.5rem;
  color: var(--color-text-light);
}

.breadcrumb-item.active {
  color: var(--color-primary);
  font-weight: 600;
}

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

.page-hero {
  background: linear-gradient(180deg, #f1f5f9 0%, #ffffff 100%);
  border-bottom: 1px solid var(--color-border);
  padding: 3rem 0;
}

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

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.hero-image-wrap {
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--box-shadow-md);
  border: 1px solid var(--color-border);
  background-color: transparent;
  line-height: 0;
  align-self: center;
}

.hero-image {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  vertical-align: middle;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 700;
  text-decoration: none !important;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: var(--transition);
  min-height: 48px;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #ffffff !important;
  border: 2px solid var(--color-accent);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-1px);
}

.btn-primary:active {
  background-color: var(--color-accent-active);
  transform: translateY(0);
}

.btn-lg {
  padding: 0.9rem 2rem;
  font-size: 1.1rem;
}

.btn-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* Content Sections */
.content-section {
  padding: 3.5rem 0;
}

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

/* Gas Safety Warning Banner */
.gas-safety-banner {
  background-color: var(--color-danger-bg);
  border-top: 2px solid var(--color-danger-border);
  border-bottom: 2px solid var(--color-danger-border);
  padding: 1.5rem 0;
}

.safety-box {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.safety-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  color: var(--color-danger-text);
  margin-top: 0.25rem;
}

.safety-icon svg {
  width: 100%;
  height: 100%;
}

.safety-content {
  flex: 1;
}

.safety-title {
  color: var(--color-danger-text);
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.safety-content p {
  color: #7f1d1d;
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 0;
}

/* Cards & Service Cards */
.card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: 1.75rem;
  box-shadow: var(--box-shadow-sm);
  transition: var(--transition);
}

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

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

.service-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--box-shadow-md);
  border-color: #cbd5e1;
}

.service-card h3 a {
  color: var(--color-primary);
  text-decoration: none;
}

.service-card h3 a:hover {
  color: var(--color-accent);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 700;
  font-size: 0.95rem;
  margin-top: 1rem;
}

/* Checklists */
.checklist {
  list-style: none;
  padding-left: 0;
  margin-bottom: 1.5rem;
}

.checklist li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 0.85rem;
  line-height: 1.6;
}

.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: #16a34a;
  font-weight: 800;
  font-size: 1.15rem;
}

/* Callout Blocks */
.callout {
  background-color: #f0fdf4;
  border-left: 4px solid #16a34a;
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
  margin: 1.75rem 0;
}

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

.callout-warning {
  background-color: #fffbeb;
  border-left-color: var(--color-accent);
}

/* FAQs */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.faq-item {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  padding: 1.5rem;
}

.faq-question {
  color: var(--color-primary);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

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

/* In-Content Image Blocks */
.content-section .grid-2 {
  align-items: start;
}

.content-image-wrap {
  margin: 0;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--box-shadow-md);
  border: 1px solid var(--color-border);
  background-color: transparent;
  line-height: 0;
  align-self: start;
}

.content-image {
  width: 100%;
  height: auto;
  display: block;
  vertical-align: middle;
}

/* CTA Banners */
.cta-banner {
  background-color: var(--color-primary);
  color: #ffffff;
  padding: 3.5rem 0;
}

.cta-banner h2 {
  color: #ffffff;
}

.cta-lead {
  font-size: 1.15rem;
  color: #cbd5e1;
  max-width: 750px;
  margin: 0 auto 2rem auto;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

/* Contact Page Styles */
.contact-card {
  background-color: #f1f5f9;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: 1.75rem;
  margin-bottom: 2rem;
}

.contact-card-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.contact-phone-display {
  margin: 1rem 0;
}

.phone-link-large {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-accent);
  text-decoration: none !important;
}

.phone-link-large:hover {
  color: var(--color-accent-hover);
}

.contact-card-note {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.address-block {
  margin-top: 1.5rem;
}

.external-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
}

.link-icon {
  width: 16px;
  height: 16px;
}

/* Footer */
.site-footer {
  background-color: var(--color-primary-dark);
  color: #94a3b8;
  padding-top: 4rem;
  border-top: 3px solid var(--color-accent);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 3.5rem;
}

@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .footer-inner {
    grid-template-columns: 1.5fr 1.2fr 1.3fr;
  }
}

.footer-heading {
  color: #ffffff;
  font-size: 1.15rem;
  margin-bottom: 1.25rem;
}

.footer-text {
  font-size: 0.925rem;
  line-height: 1.6;
  margin-bottom: 1rem;
  color: #cbd5e1;
}

.footer-phone a {
  color: var(--color-accent);
  font-size: 1.25rem;
  font-weight: 800;
  text-decoration: none;
}

.footer-phone a:hover {
  text-decoration: underline;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  color: #cbd5e1;
  text-decoration: none;
  font-size: 0.925rem;
}

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

.footer-bottom {
  background-color: #03080f;
  padding: 1.5rem 0;
  border-top: 1px solid #1e293b;
  font-size: 0.85rem;
}

.footer-bottom-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.copyright {
  color: #94a3b8;
  margin-bottom: 0;
}

.privacy-notice {
  color: #64748b;
  font-size: 0.825rem;
  margin-bottom: 0;
  line-height: 1.5;
}

/* Mobile Sticky Call Bar */
.mobile-call-bar {
  display: block;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-primary);
  border-top: 2px solid var(--color-accent);
  padding: 0.65rem 1rem;
  z-index: 999;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
}

@media (min-width: 992px) {
  .mobile-call-bar {
    display: none;
  }
}

.mobile-call-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  background-color: var(--color-accent);
  color: #ffffff !important;
  text-decoration: none !important;
  font-weight: 700;
  font-size: 1.05rem;
  padding: 0.75rem;
  border-radius: var(--border-radius-sm);
  min-height: 48px;
}

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