/* ==========================================================================
   NY PLUMBING — MIDTOWN, MANHATTAN, NY
   Master Stylesheet (styles.css)
   Palette: Deep Navy (#10243A), Darker Navy (#0A1726), White (#FFFFFF),
            Pale Blue-Gray (#F2F6FA), Body (#263445), CTA Teal (#16A6A1),
            CTA Hover (#0F7C78)
   Namespace: .mdt- (Midtown Dedicated Leak Detection Architecture)
   ========================================================================== */

:root {
  --mdt-navy-dark: #0A1726;
  --mdt-navy: #10243A;
  --mdt-navy-light: #1A3450;
  --mdt-teal: #16A6A1;
  --mdt-teal-hover: #0F7C78;
  --mdt-teal-light: #E0F5F4;
  --mdt-white: #FFFFFF;
  --mdt-gray-50: #F2F6FA;
  --mdt-gray-100: #E5EDF4;
  --mdt-gray-200: #CBD7E2;
  --mdt-gray-600: #576B80;
  --mdt-text: #263445;
  --mdt-text-light: #4A5D73;
  --mdt-alert-bg: #FEF2F2;
  --mdt-alert-border: #EF4444;
  --mdt-alert-text: #991B1B;

  --mdt-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mdt-max-w: 1180px;
  --mdt-radius: 6px;
  --mdt-radius-lg: 10px;
  --mdt-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --mdt-shadow: 0 4px 12px rgba(10, 23, 38, 0.08);
  --mdt-shadow-lg: 0 10px 25px rgba(10, 23, 38, 0.12);
}

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

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

body {
  font-family: var(--mdt-font);
  color: var(--mdt-text);
  background-color: var(--mdt-white);
  line-height: 1.65;
  padding-bottom: 74px; /* Space for mobile sticky call bar */
}

@media (min-width: 993px) {
  body {
    padding-bottom: 0;
  }
}

/* Skip Link for Accessibility */
.mdt-skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background-color: var(--mdt-teal);
  color: var(--mdt-white);
  padding: 10px 16px;
  font-weight: 700;
  z-index: 9999;
  border-radius: var(--mdt-radius);
  text-decoration: none;
  transition: top 0.2s ease;
}

.mdt-skip-link:focus {
  top: 16px;
}

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

h1 {
  font-size: 2.2rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.65rem;
  margin-top: 2rem;
  letter-spacing: -0.015em;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--mdt-gray-100);
}

h3 {
  font-size: 1.25rem;
  margin-top: 1.25rem;
}

p {
  margin-bottom: 1.25rem;
  color: var(--mdt-text);
}

ul, ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
  color: var(--mdt-text);
}

li {
  margin-bottom: 0.5rem;
}

a {
  color: #0d837f;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

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

/* Containers */
.mdt-container {
  width: 100%;
  max-width: var(--mdt-max-w);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.mdt-section {
  padding: 56px 0;
}

.mdt-section--alt {
  background-color: var(--mdt-gray-50);
  border-top: 1px solid var(--mdt-gray-100);
  border-bottom: 1px solid var(--mdt-gray-100);
}

.mdt-section-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 36px auto;
}

.mdt-section-header h2 {
  border-bottom: none;
  padding-bottom: 0;
  margin-top: 0;
}

.mdt-section-header p {
  font-size: 1.05rem;
  color: var(--mdt-text-light);
  margin-top: 0.5rem;
}

/* Top Announcement Strip */
.mdt-topbar {
  background-color: var(--mdt-navy-dark);
  color: var(--mdt-gray-200);
  font-size: 0.85rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mdt-topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.mdt-topbar__link {
  color: var(--mdt-teal-light);
  font-weight: 700;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.mdt-topbar__link:hover {
  color: var(--mdt-white);
  text-decoration: underline;
}

/* Site Header */
.mdt-header {
  background-color: var(--mdt-navy);
  color: var(--mdt-white);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 3px solid var(--mdt-teal);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.mdt-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 8px 0;
}

.mdt-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--mdt-white);
}

.mdt-brand__icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
}

.mdt-brand__text {
  display: flex;
  flex-direction: column;
}

.mdt-brand__name {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--mdt-white);
  line-height: 1.1;
}

.mdt-brand__sub {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--mdt-teal);
  font-weight: 600;
}

/* Hamburger Button */
.mdt-hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--mdt-radius);
  padding: 10px;
  cursor: pointer;
  z-index: 1100;
}

.mdt-hamburger__line {
  width: 100%;
  height: 2px;
  background-color: var(--mdt-white);
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.mdt-hamburger[aria-expanded="true"] .mdt-hamburger__line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.mdt-hamburger[aria-expanded="true"] .mdt-hamburger__line:nth-child(2) {
  opacity: 0;
}

.mdt-hamburger[aria-expanded="true"] .mdt-hamburger__line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Navigation Links */
.mdt-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.mdt-nav__list {
  display: flex;
  align-items: center;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 4px;
}

.mdt-nav__item {
  position: relative;
}

.mdt-nav__link,
.mdt-dropdown__btn {
  color: var(--mdt-white);
  text-decoration: none;
  padding: 8px 12px;
  font-weight: 600;
  font-size: 0.92rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: var(--mdt-radius);
  transition: background-color 0.2s ease, color 0.2s ease;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.mdt-nav__link:hover,
.mdt-nav__link:focus,
.mdt-nav__link[aria-current="page"],
.mdt-dropdown__btn:hover,
.mdt-dropdown__btn:focus {
  background-color: var(--mdt-navy-light);
  color: var(--mdt-teal);
}

/* Dropdown Menu */
.mdt-chevron {
  font-size: 0.7rem;
  transition: transform 0.2s ease;
}

.mdt-dropdown__menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--mdt-navy-dark);
  min-width: 280px;
  border-radius: var(--mdt-radius);
  list-style: none;
  padding: 8px 0;
  border: 1px solid var(--mdt-navy-light);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.45);
  z-index: 1050;
  margin: 0;
}

.mdt-dropdown__menu li {
  margin: 0;
}

.mdt-dropdown__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  color: #e2e8f0;
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: background-color 0.15s ease, color 0.15s ease, padding-left 0.15s ease;
}

.mdt-dropdown__link:hover,
.mdt-dropdown__link:focus,
.mdt-dropdown__link[aria-current="page"] {
  background-color: var(--mdt-navy-light);
  color: var(--mdt-teal);
  padding-left: 22px;
}

@media (min-width: 993px) {
  .mdt-nav__item.mdt-dropdown:hover .mdt-dropdown__menu,
  .mdt-nav__item.mdt-dropdown:focus-within .mdt-dropdown__menu {
    display: block;
  }
}

.mdt-header__cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Mobile & Tablet Navigation Drawer Rules */
@media (max-width: 992px) {
  .mdt-hamburger {
    display: flex;
  }

  .mdt-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--mdt-navy-dark);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 20px 24px 20px;
    border-bottom: 3px solid var(--mdt-teal);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    z-index: 9999;
  }

  .mdt-nav.is-open {
    display: flex;
  }

  .mdt-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .mdt-nav__item {
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .mdt-nav__link,
  .mdt-dropdown__btn {
    width: 100%;
    padding: 14px 10px;
    font-size: 1.05rem;
    justify-content: space-between;
  }

  .mdt-dropdown__menu {
    position: static;
    display: none;
    background-color: rgba(0, 0, 0, 0.4);
    border: none;
    box-shadow: none;
    min-width: 100%;
    padding: 0 0 8px 12px;
  }

  .mdt-nav__item.mdt-dropdown.is-expanded .mdt-dropdown__menu {
    display: block;
  }

  .mdt-nav__item.mdt-dropdown.is-expanded .mdt-chevron {
    transform: rotate(180deg);
  }
}

/* Buttons */
.mdt-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  text-decoration: none;
  padding: 12px 24px;
  border-radius: var(--mdt-radius);
  transition: all 0.2s ease;
  font-size: 1rem;
  line-height: 1.2;
  cursor: pointer;
  border: none;
  font-family: inherit;
}

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

.mdt-btn--primary:hover,
.mdt-btn--primary:focus {
  background-color: var(--mdt-teal-hover);
  color: var(--mdt-white) !important;
  transform: translateY(-1px);
}

.mdt-btn--secondary {
  background-color: var(--mdt-navy-light);
  color: var(--mdt-white) !important;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.mdt-btn--secondary:hover,
.mdt-btn--secondary:focus {
  background-color: var(--mdt-navy);
  color: var(--mdt-teal-light) !important;
}

.mdt-btn--sm {
  padding: 8px 14px;
  font-size: 0.88rem;
}

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

.mdt-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 1.5rem;
}

/* Badges */
.mdt-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--mdt-radius);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.mdt-badge--teal {
  background-color: var(--mdt-teal-light);
  color: var(--mdt-teal-hover);
  border: 1px solid var(--mdt-teal);
}

.mdt-badge--navy {
  background-color: var(--mdt-navy-light);
  color: var(--mdt-white);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Breadcrumbs */
.mdt-breadcrumb {
  background-color: var(--mdt-gray-50);
  border-bottom: 1px solid var(--mdt-gray-100);
  padding: 10px 0;
  font-size: 0.88rem;
}

.mdt-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 8px;
}

.mdt-breadcrumb__item a {
  color: var(--mdt-text-light);
  text-decoration: none;
}

.mdt-breadcrumb__item a:hover {
  text-decoration: underline;
  color: var(--mdt-navy);
}

.mdt-breadcrumb__item + .mdt-breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--mdt-gray-600);
}

/* Hero Banners */
.mdt-hero {
  background-color: var(--mdt-navy);
  color: var(--mdt-white);
  padding: 56px 0;
  border-bottom: 4px solid var(--mdt-teal);
}

.mdt-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}

@media (min-width: 993px) {
  .mdt-hero__grid {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

.mdt-hero__title {
  color: var(--mdt-white);
  font-size: 2.3rem;
  line-height: 1.2;
  margin-top: 0.75rem;
  margin-bottom: 1rem;
}

.mdt-hero__lead {
  color: var(--mdt-gray-200);
  font-size: 1.15rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

/* Page Hero for Inner Pages */
.mdt-page-hero {
  background-color: var(--mdt-navy);
  color: var(--mdt-white);
  padding: 48px 0;
  border-bottom: 4px solid var(--mdt-teal);
}

.mdt-page-hero__title {
  color: var(--mdt-white);
  font-size: 2.2rem;
  line-height: 1.25;
  margin-top: 0.75rem;
  margin-bottom: 1rem;
}

.mdt-page-hero__lead {
  color: var(--mdt-gray-200);
  font-size: 1.12rem;
  line-height: 1.6;
  max-width: 860px;
  margin-bottom: 1.5rem;
}

/* Grid Systems */
.mdt-grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.mdt-grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

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

@media (min-width: 993px) {
  .mdt-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Cards */
.mdt-card {
  background-color: var(--mdt-white);
  border: 1px solid var(--mdt-gray-100);
  border-top: 3px solid var(--mdt-navy);
  border-radius: var(--mdt-radius);
  padding: 24px;
  box-shadow: var(--mdt-shadow-sm);
  display: flex;
  flex-direction: column;
}

.mdt-card--accent {
  border-top-color: var(--mdt-teal);
}

.mdt-card__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.mdt-card__icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  stroke: var(--mdt-teal);
}

.mdt-card__title {
  color: var(--mdt-navy);
  font-size: 1.25rem;
  margin: 0;
}

.mdt-card__desc {
  color: var(--mdt-text);
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Checklists */
.mdt-checklist {
  list-style: none;
  padding: 0;
  margin: 14px 0;
}

.mdt-checklist li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 10px;
  font-size: 0.95rem;
  color: var(--mdt-text);
}

.mdt-checklist li::before {
  content: "✔";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--mdt-teal);
  font-weight: 700;
  font-size: 0.9rem;
}

/* Images & Frames */
.mdt-image-frame {
  border-radius: var(--mdt-radius-lg);
  overflow: hidden;
  box-shadow: var(--mdt-shadow);
  border: 1px solid var(--mdt-gray-100);
  background-color: var(--mdt-gray-50);
}

.mdt-image {
  width: 100%;
  height: auto;
  display: block;
}

.mdt-image-caption {
  font-size: 0.85rem;
  color: var(--mdt-text-light);
  padding: 10px 14px;
  background-color: var(--mdt-gray-50);
  border-top: 1px solid var(--mdt-gray-100);
  margin-bottom: 0;
}

/* Callouts */
.mdt-callout {
  border-radius: var(--mdt-radius);
  padding: 20px 24px;
  margin: 24px 0;
}

.mdt-callout--alert {
  background-color: var(--mdt-alert-bg);
  border: 2px solid var(--mdt-alert-border);
  color: var(--mdt-alert-text);
}

.mdt-callout--neutral {
  background-color: var(--mdt-gray-50);
  border: 1px solid var(--mdt-gray-100);
  border-left: 4px solid var(--mdt-teal);
}

.mdt-cta-banner {
  background-color: var(--mdt-navy);
  color: var(--mdt-white);
  padding: 36px 28px;
  border-radius: var(--mdt-radius-lg);
  border-left: 6px solid var(--mdt-teal);
  margin: 36px 0;
  text-align: center;
}

.mdt-cta-banner h3 {
  color: var(--mdt-white);
  font-size: 1.6rem;
  margin-top: 0;
}

.mdt-cta-banner p {
  color: var(--mdt-gray-200);
  max-width: 700px;
  margin: 0 auto 20px auto;
  font-size: 1.05rem;
}

/* Step Sequences */
.mdt-steps {
  list-style: none;
  padding: 0;
  margin: 24px 0;
}

.mdt-step {
  display: flex;
  gap: 18px;
  margin-bottom: 24px;
}

.mdt-step__num {
  width: 36px;
  height: 36px;
  background-color: var(--mdt-teal);
  color: var(--mdt-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.05rem;
  flex-shrink: 0;
}

.mdt-step__content h3 {
  margin-top: 0;
  margin-bottom: 6px;
}

/* FAQs */
.mdt-faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
}

.mdt-faq {
  background-color: var(--mdt-white);
  border: 1px solid var(--mdt-gray-100);
  border-radius: var(--mdt-radius);
  padding: 20px 24px;
  box-shadow: var(--mdt-shadow-sm);
}

.mdt-faq__q {
  font-size: 1.15rem;
  color: var(--mdt-navy);
  margin-top: 0;
  margin-bottom: 10px;
}

.mdt-faq__a p {
  margin-bottom: 0;
  color: var(--mdt-text);
  line-height: 1.6;
}

/* Footer */
.mdt-footer {
  background-color: var(--mdt-navy-dark);
  color: var(--mdt-gray-200);
  padding: 56px 0 24px 0;
  border-top: 4px solid var(--mdt-teal);
}

.mdt-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  margin-bottom: 40px;
}

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

@media (min-width: 993px) {
  .mdt-footer__grid {
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  }
}

.mdt-footer__title {
  color: var(--mdt-white);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--mdt-teal);
  padding-bottom: 6px;
  display: inline-block;
}

.mdt-footer__links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mdt-footer__links li {
  margin-bottom: 8px;
}

.mdt-footer__links a {
  color: var(--mdt-gray-200);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.mdt-footer__links a:hover,
.mdt-footer__links a:focus {
  color: var(--mdt-teal);
  text-decoration: underline;
}

.mdt-footer__text {
  color: #94A3B8;
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 14px;
}

.mdt-footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.85rem;
  color: #94A3B8;
}

@media (min-width: 768px) {
  .mdt-footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.mdt-footer__bottom a {
  color: var(--mdt-teal);
}

/* Sticky Mobile Call Bar */
.mdt-mobile-callbar {
  display: block;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--mdt-navy-dark);
  padding: 10px 16px;
  z-index: 999;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.4);
  border-top: 2px solid var(--mdt-teal);
}

@media (min-width: 993px) {
  .mdt-mobile-callbar {
    display: none;
  }
}

.mdt-mobile-call-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: var(--mdt-teal);
  color: var(--mdt-white) !important;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  padding: 12px;
  min-height: 48px;
  border-radius: var(--mdt-radius);
  text-align: center;
}

.mdt-mobile-call-btn:active {
  background-color: var(--mdt-teal-hover);
}