/* ==========================================================================
   NY PLUMBING — KEW GARDENS, QUEENS LEAK DETECTION STYLESHEET
   Design System: Deep Midnight Navy (#081426), Teal/Slate (#0d9488 / #334155),
   Clean White (#FFFFFF), High-Contrast Amber Gold (#f59e0b / #d97706) for phone conversion.
   Unique Prefix: .kg-* to ensure distinct DOM signature and eliminate crawler footprints.
   ========================================================================== */

:root {
  --kg-navy-950: #040d1a;
  --kg-navy-900: #081426;
  --kg-navy-800: #0f233d;
  --kg-navy-700: #173559;
  --kg-teal-600: #0d9488;
  --kg-teal-500: #14b8a6;
  --kg-teal-100: #ccfbf1;
  --kg-slate-800: #1e293b;
  --kg-slate-700: #334155;
  --kg-slate-600: #475569;
  --kg-slate-400: #94a3b8;
  --kg-slate-200: #e2e8f0;
  --kg-slate-100: #f1f5f9;
  --kg-slate-50:  #f8fafc;
  --kg-white: #ffffff;
  
  --kg-accent-amber: #f59e0b;
  --kg-accent-hover: #d97706;
  --kg-accent-glow: rgba(245, 158, 11, 0.28);
  
  --kg-alert-red: #ef4444;
  --kg-alert-bg: #fef2f2;
  --kg-alert-border: #fecaca;
  
  --kg-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
  --kg-font-display: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
  
  --kg-radius-sm: 6px;
  --kg-radius-md: 10px;
  --kg-radius-lg: 14px;
  --kg-radius-full: 9999px;
  
  --kg-shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --kg-shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -2px rgba(0,0,0,0.06);
  --kg-shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.06);
  --kg-shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.08);
  
  --kg-container-width: 1200px;
  --kg-transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-family: var(--kg-font-sans);
  line-height: 1.6;
  color: var(--kg-slate-800);
  background-color: var(--kg-white);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  padding-bottom: 70px;
}

@media (min-width: 768px) {
  body {
    padding-bottom: 0;
  }
}

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

a {
  color: var(--kg-navy-700);
  text-decoration: none;
  transition: var(--kg-transition);
}

a:hover {
  color: var(--kg-teal-600);
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--kg-font-display);
  color: var(--kg-navy-950);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.015em;
}

h1 { font-size: clamp(2rem, 3.8vw + 1rem, 2.85rem); margin-bottom: 1.25rem; }
h2 { font-size: clamp(1.45rem, 2.2vw + 0.5rem, 2.05rem); margin-bottom: 1rem; }
h3 { font-size: clamp(1.15rem, 1.5vw + 0.3rem, 1.4rem); margin-bottom: 0.75rem; }
p { margin-bottom: 1.2rem; color: var(--kg-slate-700); font-size: 1.05rem; }
p:last-child { margin-bottom: 0; }
ul, ol { margin-bottom: 1.2rem; padding-left: 1.5rem; color: var(--kg-slate-700); }
li { margin-bottom: 0.5rem; }

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

.kg-section {
  padding: 4.5rem 0;
}

.kg-section--neutral {
  background-color: var(--kg-slate-50);
  border-top: 1px solid var(--kg-slate-200);
  border-bottom: 1px solid var(--kg-slate-200);
}

.kg-grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.kg-grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

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

@media (min-width: 1024px) {
  .kg-grid-3 { grid-template-columns: repeat(3, 1fr); }
}

/* Header & Nav */
.kg-header {
  background-color: var(--kg-navy-900);
  border-bottom: 1px solid var(--kg-navy-700);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 14px rgba(4, 13, 26, 0.25);
}

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

.kg-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--kg-white);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.kg-brand:hover {
  color: var(--kg-white);
}

.kg-brand__badge {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--kg-navy-800), var(--kg-navy-700));
  border: 1px solid var(--kg-teal-500);
  border-radius: var(--kg-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--kg-accent-amber);
}

.kg-brand__col {
  display: flex;
  flex-direction: column;
}

.kg-brand__title {
  line-height: 1.1;
  font-size: 1.25rem;
  color: var(--kg-white);
}

.kg-brand__loc {
  font-size: 0.72rem;
  color: var(--kg-teal-500);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.kg-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.kg-nav__list {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 1.15rem;
  margin: 0;
  padding: 0;
}

.kg-nav__item a {
  color: var(--kg-slate-200);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.5rem 0.65rem;
  border-radius: var(--kg-radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.kg-nav__item a:hover, .kg-nav__item a[aria-current="page"] {
  color: var(--kg-white);
  background-color: var(--kg-navy-800);
}

/* Services Dropdown */
.kg-dropdown {
  position: relative;
}

.kg-dropdown__trigger {
  background: transparent;
  border: none;
  color: var(--kg-slate-200);
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.5rem 0.65rem;
  border-radius: var(--kg-radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: var(--kg-transition);
}

.kg-dropdown__trigger:hover, .kg-dropdown:focus-within .kg-dropdown__trigger {
  color: var(--kg-white);
  background-color: var(--kg-navy-800);
}

.kg-dropdown__arrow {
  width: 16px;
  height: 16px;
  transition: transform 0.2s ease;
}

.kg-dropdown[data-open="true"] .kg-dropdown__arrow {
  transform: rotate(180deg);
}

.kg-dropdown__panel {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 290px;
  background-color: var(--kg-navy-900);
  border: 1px solid var(--kg-navy-700);
  border-radius: var(--kg-radius-md);
  box-shadow: var(--kg-shadow-xl);
  padding: 0.65rem;
  margin-top: 0.5rem;
  list-style: none;
  z-index: 1010;
}

.kg-dropdown[data-open="true"] .kg-dropdown__panel,
.kg-dropdown:hover .kg-dropdown__panel,
.kg-dropdown:focus-within .kg-dropdown__panel {
  display: block;
}

.kg-dropdown__link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.65rem 0.75rem;
  color: var(--kg-slate-200);
  border-radius: var(--kg-radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
}

.kg-dropdown__link:hover, .kg-dropdown__link[aria-current="page"] {
  background-color: var(--kg-navy-800);
  color: var(--kg-white);
}

.kg-dropdown__link svg {
  width: 18px;
  height: 18px;
  color: var(--kg-teal-500);
  flex-shrink: 0;
}

/* Call Button Component */
.kg-call-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  background-color: var(--kg-accent-amber);
  color: #000000 !important;
  font-weight: 700;
  font-size: 1.05rem;
  padding: 0.75rem 1.4rem;
  border-radius: var(--kg-radius-full);
  box-shadow: 0 4px 14px var(--kg-accent-glow);
  text-decoration: none;
  transition: var(--kg-transition);
  white-space: nowrap;
}

.kg-call-btn:hover {
  background-color: var(--kg-accent-hover);
  color: #000000 !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(217, 119, 6, 0.4);
}

.kg-call-btn svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.kg-call-btn--lg {
  padding: 1rem 2rem;
  font-size: 1.2rem;
}

/* Mobile Toggle */
.kg-menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--kg-navy-700);
  color: var(--kg-white);
  padding: 0.5rem;
  border-radius: var(--kg-radius-sm);
  cursor: pointer;
}

.kg-menu-toggle svg {
  width: 24px;
  height: 24px;
  display: block;
}

@media (max-width: 960px) {
  .kg-menu-toggle {
    display: block;
  }
  
  .kg-nav {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--kg-navy-900);
    flex-direction: column;
    align-items: stretch;
    padding: 1.5rem;
    overflow-y: auto;
    display: none;
  }
  
  .kg-nav[data-open="true"] {
    display: flex;
  }
  
  .kg-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
  }
  
  .kg-nav__item a, .kg-dropdown__trigger {
    padding: 0.85rem 1rem;
    font-size: 1.05rem;
    width: 100%;
    justify-content: space-between;
  }
  
  .kg-dropdown__panel {
    position: static;
    box-shadow: none;
    border: none;
    background-color: var(--kg-navy-950);
    margin: 0.25rem 0 0.5rem 1rem;
    padding: 0.5rem;
  }
  
  .kg-header .kg-call-btn {
    width: 100%;
    text-align: center;
  }
}

/* Hero Section */
.kg-hero {
  position: relative;
  background: linear-gradient(140deg, var(--kg-navy-950) 0%, var(--kg-navy-900) 50%, var(--kg-navy-800) 100%);
  color: var(--kg-white);
  padding: 4.5rem 0 5rem;
  border-bottom: 3px solid var(--kg-teal-600);
}

.kg-hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(13, 148, 136, 0.15);
  color: var(--kg-teal-500);
  border: 1px solid rgba(20, 184, 166, 0.35);
  padding: 0.35rem 0.85rem;
  border-radius: var(--kg-radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.kg-hero__title {
  color: var(--kg-white);
  margin-bottom: 1.25rem;
}

.kg-hero__lead {
  font-size: 1.2rem;
  color: var(--kg-slate-200);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.kg-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.kg-hero__meta {
  font-size: 0.9rem;
  color: var(--kg-slate-400);
}

.kg-hero__media {
  position: relative;
  border-radius: var(--kg-radius-lg);
  overflow: hidden;
  box-shadow: var(--kg-shadow-xl);
  border: 2px solid var(--kg-navy-700);
  background-color: var(--kg-navy-800);
}

.kg-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.kg-hero__caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(8, 20, 38, 0.88);
  backdrop-filter: blur(6px);
  padding: 0.75rem 1rem;
  color: var(--kg-slate-200);
  font-size: 0.85rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Feature Matrix & Cards */
.kg-card {
  background-color: var(--kg-white);
  border: 1px solid var(--kg-slate-200);
  border-radius: var(--kg-radius-md);
  padding: 1.75rem;
  box-shadow: var(--kg-shadow-sm);
  transition: var(--kg-transition);
  display: flex;
  flex-direction: column;
}

.kg-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--kg-shadow-lg);
  border-color: var(--kg-slate-400);
}

.kg-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--kg-radius-sm);
  background-color: var(--kg-slate-100);
  color: var(--kg-navy-800);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  transition: var(--kg-transition);
}

.kg-card:hover .kg-card__icon {
  background-color: var(--kg-navy-900);
  color: var(--kg-accent-amber);
}

.kg-card__title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.kg-card__title a {
  color: var(--kg-navy-950);
}

.kg-card__title a:hover {
  color: var(--kg-teal-600);
}

.kg-card__desc {
  font-size: 0.98rem;
  color: var(--kg-slate-600);
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.kg-card__link {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--kg-navy-700);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.kg-card__link:hover {
  color: var(--kg-teal-600);
  gap: 0.6rem;
}

/* Diagnostics Process Ribbon */
.kg-ribbon {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin: 2.5rem 0;
}

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

@media (min-width: 1024px) {
  .kg-ribbon { grid-template-columns: repeat(4, 1fr); }
}

.kg-ribbon__step {
  background: var(--kg-white);
  border: 1px solid var(--kg-slate-200);
  border-radius: var(--kg-radius-md);
  padding: 1.5rem;
}

.kg-ribbon__num {
  width: 36px;
  height: 36px;
  background-color: var(--kg-navy-900);
  color: var(--kg-accent-amber);
  border-radius: var(--kg-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin-bottom: 1rem;
}

/* Callout Box */
.kg-callout {
  border-left: 4px solid var(--kg-teal-600);
  background-color: var(--kg-slate-50);
  padding: 1.5rem 1.75rem;
  border-radius: 0 var(--kg-radius-md) var(--kg-radius-md) 0;
  margin: 2rem 0;
}

.kg-callout--alert {
  border-left-color: var(--kg-alert-red);
  background-color: var(--kg-alert-bg);
  border-top: 1px solid var(--kg-alert-border);
  border-right: 1px solid var(--kg-alert-border);
  border-bottom: 1px solid var(--kg-alert-border);
}

.kg-callout__title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.kg-callout--alert .kg-callout__title {
  color: var(--kg-alert-red);
}

/* Banner Strip */
.kg-banner {
  background: linear-gradient(135deg, var(--kg-navy-950), var(--kg-navy-900));
  border-radius: var(--kg-radius-lg);
  padding: 3rem 2rem;
  color: var(--kg-white);
  text-align: center;
  box-shadow: var(--kg-shadow-xl);
  margin: 3.5rem 0;
  border: 1px solid var(--kg-navy-700);
}

.kg-banner h2, .kg-banner h3 {
  color: var(--kg-white);
  margin-bottom: 0.75rem;
}

.kg-banner p {
  color: var(--kg-slate-200);
  max-width: 650px;
  margin: 0 auto 1.75rem;
  font-size: 1.1rem;
}

/* Breadcrumbs */
.kg-breadcrumbs {
  background-color: var(--kg-slate-100);
  border-bottom: 1px solid var(--kg-slate-200);
  padding: 0.75rem 0;
  font-size: 0.88rem;
}

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

.kg-breadcrumbs__item a {
  color: var(--kg-navy-700);
}

.kg-breadcrumbs__item a:hover {
  color: var(--kg-teal-600);
  text-decoration: underline;
}

.kg-breadcrumbs__sep {
  color: var(--kg-slate-400);
}

.kg-breadcrumbs__cur {
  color: var(--kg-slate-800);
  font-weight: 600;
}

/* Image Frame */
.kg-frame {
  border-radius: var(--kg-radius-md);
  overflow: hidden;
  box-shadow: var(--kg-shadow-lg);
  border: 1px solid var(--kg-slate-200);
  background: var(--kg-slate-100);
}

.kg-frame img {
  width: 100%;
  height: auto;
  display: block;
}

/* FAQ Accordion */
.kg-faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.75rem;
}

.kg-faq-node {
  border: 1px solid var(--kg-slate-200);
  border-radius: var(--kg-radius-md);
  background: var(--kg-white);
  overflow: hidden;
}

.kg-faq-head {
  width: 100%;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--kg-navy-950);
  cursor: pointer;
  transition: var(--kg-transition);
}

.kg-faq-head:hover {
  background-color: var(--kg-slate-50);
  color: var(--kg-teal-600);
}

.kg-faq-icon {
  width: 20px;
  height: 20px;
  color: var(--kg-slate-400);
  transition: transform 0.25s ease;
  flex-shrink: 0;
  margin-left: 1rem;
}

.kg-faq-node[data-open="true"] .kg-faq-icon {
  transform: rotate(180deg);
  color: var(--kg-accent-amber);
}

.kg-faq-body {
  display: none;
  padding: 0 1.5rem 1.25rem;
  color: var(--kg-slate-700);
  font-size: 1rem;
  line-height: 1.6;
}

.kg-faq-node[data-open="true"] .kg-faq-body {
  display: block;
}

/* Footer Component */
.kg-footer {
  background-color: var(--kg-navy-950);
  color: var(--kg-slate-400);
  padding: 4.5rem 0 2rem;
  border-top: 4px solid var(--kg-teal-600);
  font-size: 0.95rem;
}

.kg-footer h3, .kg-footer h4 {
  color: var(--kg-white);
  font-size: 1.15rem;
  margin-bottom: 1.25rem;
}

.kg-footer a {
  color: var(--kg-slate-300);
}

.kg-footer a:hover {
  color: var(--kg-accent-amber);
}

.kg-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3.5rem;
}

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

@media (min-width: 1024px) {
  .kg-footer__grid { grid-template-columns: 2fr 1fr 1fr 1.5fr; }
}

.kg-footer__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.kg-footer__list li {
  margin-bottom: 0.65rem;
}

.kg-footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
  font-size: 0.88rem;
}

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

.kg-parent-ref {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--kg-radius-sm);
  padding: 0.85rem 1rem;
  margin-top: 1.25rem;
  font-size: 0.9rem;
  color: var(--kg-slate-300);
}

.kg-parent-ref a {
  color: var(--kg-accent-amber);
  font-weight: 700;
  text-decoration: underline;
}

/* Sticky Mobile Bar */
.kg-sticky-bar {
  display: flex;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--kg-navy-950);
  border-top: 2px solid var(--kg-accent-amber);
  padding: 0.65rem 1rem;
  z-index: 999;
  box-shadow: 0 -4px 14px rgba(0, 0, 0, 0.35);
  align-items: center;
  justify-content: center;
}

@media (min-width: 768px) {
  .kg-sticky-bar {
    display: none;
  }
}

.kg-sticky-bar .kg-call-btn {
  width: 100%;
  padding: 0.8rem 1rem;
  font-size: 1.05rem;
}

/* SVG Utility */
.kg-svg {
  display: inline-block;
  width: 1.25em;
  height: 1.25em;
  stroke-width: 2;
  stroke: currentColor;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  vertical-align: middle;
}