/* ==========================================================================
   NY Plumbing — Buffalo, NY
   Clean, Responsive, Accessible, Phone-First Stylesheet
   Color Palette: Deep Cobalt Navy (#0b192c), Slate (#1e293b), Crimson (#dc2626), Flame (#ea580c)
   ========================================================================== */

:root {
  --buf-primary: #0b192c;
  --buf-primary-light: #1e3a8a;
  --buf-secondary: #1e293b;
  --buf-slate-muted: #64748b;
  --buf-bg: #f8fafc;
  --buf-surface: #ffffff;
  --buf-border: #e2e8f0;
  --buf-border-dark: #cbd5e1;
  --buf-accent: #dc2626;
  --buf-accent-hover: #b91c1c;
  --buf-accent-flame: #ea580c;
  --buf-text-main: #0f172a;
  --buf-text-muted: #475569;
  --buf-text-light: #f8fafc;
  --buf-radius-sm: 6px;
  --buf-radius-md: 10px;
  --buf-radius-lg: 16px;
  --buf-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --buf-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --buf-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.08);
  --buf-font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --buf-container: 1200px;
}

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

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

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

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* Accessibility Focus States */
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--buf-accent);
  outline-offset: 2px;
}

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

/* Icon Utilities */
.buf-icon {
  width: 1.25rem;
  height: 1.25rem;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}
.buf-icon-sm { width: 1rem; height: 1rem; }
.buf-icon-md { width: 1.5rem; height: 1.5rem; }
.buf-icon-lg { width: 2rem; height: 2rem; }
.buf-icon-xl { width: 2.5rem; height: 2.5rem; }

/* Buttons */
.buf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-weight: 700;
  padding: 0.85rem 1.75rem;
  border-radius: var(--buf-radius-md);
  font-size: 1.05rem;
  line-height: 1.2;
  transition: all 0.2s ease;
  text-align: center;
}
.buf-btn-primary {
  background-color: var(--buf-accent);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.35);
}
.buf-btn-primary:hover {
  background-color: var(--buf-accent-hover);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(220, 38, 38, 0.45);
}
.buf-btn-outline {
  border: 2px solid #ffffff;
  color: #ffffff;
  background-color: transparent;
}
.buf-btn-outline:hover {
  background-color: rgba(255, 255, 255, 0.12);
  color: #ffffff;
}
.buf-btn-block {
  width: 100%;
}

/* Badges */
.buf-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background-color: rgba(220, 38, 38, 0.12);
  color: #b91c1c;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.buf-badge-navy {
  background-color: rgba(30, 58, 138, 0.12);
  color: var(--buf-primary-light);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.buf-site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: #ffffff;
  border-bottom: 1px solid var(--buf-border);
  box-shadow: var(--buf-shadow-sm);
}
.buf-header-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.75rem;
}

/* Brand Logo */
.buf-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--buf-primary);
  font-weight: 800;
  text-decoration: none;
}
.buf-brand-emblem {
  width: 2.75rem;
  height: 2.75rem;
  background: linear-gradient(135deg, var(--buf-primary) 0%, var(--buf-primary-light) 100%);
  color: #ffffff;
  border-radius: var(--buf-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(11, 25, 44, 0.2);
}
.buf-brand-text {
  display: flex;
  flex-direction: column;
}
.buf-brand-title {
  font-size: 1.35rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--buf-primary);
}
.buf-brand-geo {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--buf-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Desktop Navigation */
.buf-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.buf-nav-menu {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.buf-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.85rem;
  color: var(--buf-secondary);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--buf-radius-sm);
  transition: all 0.2s ease;
}
.buf-nav-link:hover {
  color: var(--buf-accent);
  background-color: var(--buf-bg);
}

/* Dropdown */
.buf-dropdown {
  position: relative;
}
.buf-dropdown-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.85rem;
  color: var(--buf-secondary);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--buf-radius-sm);
  transition: all 0.2s ease;
}
.buf-dropdown-btn:hover,
.buf-dropdown:hover .buf-dropdown-btn,
.buf-dropdown:focus-within .buf-dropdown-btn {
  color: var(--buf-accent);
  background-color: var(--buf-bg);
}
.buf-dropdown-list {
  position: absolute;
  top: 100%;
  left: 0;
  width: 17rem;
  background-color: #ffffff;
  border: 1px solid var(--buf-border);
  border-radius: var(--buf-radius-md);
  box-shadow: var(--buf-shadow-lg);
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  pointer-events: none;
  z-index: 100;
}
.buf-dropdown:hover .buf-dropdown-list,
.buf-dropdown:focus-within .buf-dropdown-list {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}
.buf-dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.65rem 1.1rem;
  color: var(--buf-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.15s ease;
}
.buf-dropdown-item:hover {
  background-color: var(--buf-bg);
  color: var(--buf-accent);
  padding-left: 1.35rem;
}

/* Header Phone Button - EXACTLY 1 in menu */
.buf-btn-call-head {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--buf-accent);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--buf-radius-md);
  box-shadow: 0 2px 8px rgba(220, 38, 38, 0.3);
  transition: all 0.2s ease;
}
.buf-btn-call-head:hover {
  background-color: var(--buf-accent-hover);
  color: #ffffff;
  transform: translateY(-1px);
}

/* Mobile Toggle */
.buf-menu-toggle {
  display: none;
  padding: 0.5rem;
  color: var(--buf-primary);
  border-radius: var(--buf-radius-sm);
}

/* Mobile Drawer */
.buf-mobile-drawer {
  display: none;
  position: fixed;
  top: 4.75rem;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ffffff;
  padding: 1.5rem;
  overflow-y: auto;
  border-top: 1px solid var(--buf-border);
  box-shadow: var(--buf-shadow-lg);
  flex-direction: column;
  gap: 1.25rem;
  z-index: 999;
}
.buf-mobile-drawer.is-active {
  display: flex;
}
.buf-mobile-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.buf-mobile-item {
  border-bottom: 1px solid var(--buf-border);
  padding-bottom: 0.5rem;
}
.buf-mobile-link {
  display: block;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--buf-primary);
  padding: 0.5rem 0;
}
.buf-mobile-sub {
  padding-left: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: 0.35rem;
}
.buf-mobile-sublink {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--buf-text-muted);
  padding: 0.35rem 0;
}
.buf-mobile-sublink:hover {
  color: var(--buf-accent);
}

/* ==========================================================================
   Breadcrumb Bar
   ========================================================================== */
.buf-breadcrumb-bar {
  background-color: #ffffff;
  border-bottom: 1px solid var(--buf-border);
  padding: 0.75rem 0;
  font-size: 0.85rem;
}
.buf-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  color: var(--buf-text-muted);
}
.buf-breadcrumbs a {
  color: var(--buf-primary-light);
  font-weight: 600;
}
.buf-breadcrumbs a:hover {
  color: var(--buf-accent);
}
.buf-breadcrumbs .sep {
  color: var(--buf-slate-muted);
  font-size: 0.75rem;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.buf-hero {
  background: linear-gradient(135deg, #0b192c 0%, #1e293b 100%);
  color: #ffffff;
  padding: 4rem 0 4.5rem 0;
  position: relative;
  overflow: hidden;
}
.buf-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(circle at 80% 20%, rgba(220, 38, 38, 0.12) 0%, transparent 60%);
  pointer-events: none;
}
.buf-hero-split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 1;
}
.buf-hero h1 {
  font-size: 2.75rem;
  line-height: 1.15;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  color: #ffffff;
}
.buf-hero p.buf-hero-lead {
  font-size: 1.2rem;
  line-height: 1.6;
  color: #cbd5e1;
  margin-bottom: 2rem;
}
.buf-hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.25rem;
}
.buf-hero-points {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
  padding-top: 1.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}
.buf-hero-point {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: #e2e8f0;
}
.buf-hero-point svg {
  color: #38bdf8;
}

/* Hero Right Media / Specs Card */
.buf-hero-media {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.buf-hero-frame {
  position: relative;
  border-radius: var(--buf-radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.15);
}
.buf-hero-frame img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}
.buf-hero-badge-float {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  background: rgba(11, 25, 44, 0.92);
  backdrop-filter: blur(8px);
  padding: 0.75rem 1rem;
  border-radius: var(--buf-radius-md);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.buf-hero-badge-float svg {
  color: var(--buf-accent);
}
.buf-hero-badge-float div {
  font-size: 0.85rem;
  line-height: 1.25;
}
.buf-hero-badge-float strong {
  display: block;
  color: #ffffff;
  font-weight: 700;
}
.buf-hero-badge-float span {
  color: #94a3b8;
}

/* Hero Diagnostic Card */
.buf-diag-card {
  background: #ffffff;
  color: var(--buf-text-main);
  border-radius: var(--buf-radius-lg);
  padding: 1.75rem;
  box-shadow: var(--buf-shadow-lg);
  border: 1px solid var(--buf-border);
}
.buf-diag-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--buf-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.buf-diag-card p {
  font-size: 0.95rem;
  color: var(--buf-text-muted);
  margin-bottom: 1.25rem;
}

/* Page Hero for Inner Pages */
.buf-page-hero {
  background: linear-gradient(135deg, #0b192c 0%, #1e293b 100%);
  color: #ffffff;
  padding: 3rem 0;
  border-bottom: 3px solid var(--buf-accent);
}
.buf-page-hero h1 {
  font-size: 2.35rem;
  font-weight: 900;
  margin-bottom: 0.75rem;
  color: #ffffff;
}
.buf-page-hero p {
  font-size: 1.15rem;
  color: #cbd5e1;
  max-width: 800px;
}

/* ==========================================================================
   Section & Content Layouts
   ========================================================================== */
.buf-section {
  padding: 4rem 0;
}
.buf-section-alt {
  background-color: #ffffff;
}
.buf-section-dark {
  background-color: var(--buf-primary);
  color: #ffffff;
}
.buf-section-head {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 3rem auto;
}
.buf-section-head h2 {
  font-size: 2.15rem;
  font-weight: 800;
  color: var(--buf-primary);
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}
.buf-section-dark .buf-section-head h2 {
  color: #ffffff;
}
.buf-section-head p {
  font-size: 1.1rem;
  color: var(--buf-text-muted);
}
.buf-section-dark .buf-section-head p {
  color: #cbd5e1;
}

/* Two-Column Service Layout */
.buf-service-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  padding: 3.5rem 0;
}
.buf-article h2 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--buf-primary);
  margin: 2rem 0 1rem 0;
  letter-spacing: -0.01em;
}
.buf-article h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--buf-primary);
  margin: 1.5rem 0 0.75rem 0;
}
.buf-article p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--buf-text-muted);
  margin-bottom: 1.35rem;
}
.buf-article ul, .buf-article ol {
  margin-bottom: 1.5rem;
  padding-left: 1.25rem;
}
.buf-article li {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--buf-text-muted);
  margin-bottom: 0.65rem;
  list-style-type: disc;
}
.buf-article ol li {
  list-style-type: decimal;
}

/* Card Grids */
.buf-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}
.buf-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}
.buf-card {
  background-color: var(--buf-surface);
  border: 1px solid var(--buf-border);
  border-radius: var(--buf-radius-md);
  padding: 1.75rem;
  box-shadow: var(--buf-shadow-sm);
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
}
.buf-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--buf-shadow-md);
  border-color: var(--buf-border-dark);
}
.buf-card-icon {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: var(--buf-radius-md);
  background: rgba(220, 38, 38, 0.08);
  color: var(--buf-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.buf-card-icon-navy {
  background: rgba(11, 25, 44, 0.08);
  color: var(--buf-primary);
}
.buf-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--buf-primary);
  margin-bottom: 0.65rem;
}
.buf-card p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--buf-text-muted);
  margin-bottom: 1.25rem;
  flex-grow: 1;
}
.buf-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--buf-accent);
}
.buf-card-link:hover {
  color: var(--buf-accent-hover);
  gap: 0.6rem;
}

/* Callout Emergency & Safety Blocks */
.buf-callout-emergency {
  background: #fef2f2;
  border-left: 4px solid var(--buf-accent);
  padding: 1.35rem;
  border-radius: var(--buf-radius-md);
  margin: 1.75rem 0;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.buf-callout-emergency .icon-wrap {
  color: var(--buf-accent);
  flex-shrink: 0;
}
.buf-callout-emergency h4 {
  font-size: 1.1rem;
  font-weight: 800;
  color: #991b1b;
  margin-bottom: 0.35rem;
}
.buf-callout-emergency p {
  font-size: 0.95rem;
  line-height: 1.55;
  color: #7f1d1d;
  margin: 0;
}

.buf-callout-freeze {
  background: #f0f9ff;
  border-left: 4px solid #0284c7;
  padding: 1.35rem;
  border-radius: var(--buf-radius-md);
  margin: 1.75rem 0;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.buf-callout-freeze .icon-wrap {
  color: #0284c7;
  flex-shrink: 0;
}
.buf-callout-freeze h4 {
  font-size: 1.1rem;
  font-weight: 800;
  color: #0369a1;
  margin-bottom: 0.35rem;
}
.buf-callout-freeze p {
  font-size: 0.95rem;
  line-height: 1.55;
  color: #0c4a6e;
  margin: 0;
}

/* Step-by-Step Diagnostic Timeline */
.buf-timeline {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin: 2rem 0;
}
.buf-timeline-step {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  background: #ffffff;
  border: 1px solid var(--buf-border);
  padding: 1.25rem 1.5rem;
  border-radius: var(--buf-radius-md);
  box-shadow: var(--buf-shadow-sm);
}
.buf-step-num {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--buf-primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  flex-shrink: 0;
}
.buf-step-content h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--buf-primary);
  margin-bottom: 0.25rem;
}
.buf-step-content p {
  font-size: 0.95rem;
  color: var(--buf-text-muted);
  margin: 0;
}

/* Comparison Table */
.buf-table-wrap {
  overflow-x: auto;
  margin: 2rem 0;
  border-radius: var(--buf-radius-md);
  border: 1px solid var(--buf-border);
  background: #ffffff;
}
.buf-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  text-align: left;
}
.buf-table th {
  background: #f1f5f9;
  color: var(--buf-primary);
  font-weight: 700;
  padding: 0.9rem 1.2rem;
  border-bottom: 1px solid var(--buf-border-dark);
}
.buf-table td {
  padding: 0.85rem 1.2rem;
  border-bottom: 1px solid var(--buf-border);
  color: var(--buf-text-muted);
}
.buf-table tr:last-child td {
  border-bottom: none;
}
.buf-table tr:hover td {
  background-color: var(--buf-bg);
}

/* FAQ Accordion */
.buf-faq-stack {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin: 2rem 0;
}
.buf-faq-item {
  background-color: #ffffff;
  border: 1px solid var(--buf-border);
  border-radius: var(--buf-radius-md);
  overflow: hidden;
  box-shadow: var(--buf-shadow-sm);
}
.buf-faq-q {
  width: 100%;
  padding: 1.1rem 1.35rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--buf-primary);
  background: none;
  border: none;
}
.buf-faq-q:hover {
  background-color: var(--buf-bg);
}
.buf-faq-q svg {
  transition: transform 0.2s ease;
  color: var(--buf-accent);
}
.buf-faq-q[aria-expanded="true"] svg {
  transform: rotate(180deg);
}
.buf-faq-a {
  padding: 0 1.35rem 1.25rem 1.35rem;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--buf-text-muted);
  display: none;
}
.buf-faq-a.is-open {
  display: block;
}

/* Article Media Layout */
.buf-article-media {
  margin: 1.5rem 0 2rem 0;
  border-radius: var(--buf-radius-md);
  overflow: hidden;
  box-shadow: var(--buf-shadow-md);
  border: 1px solid var(--buf-border);
}
.buf-article-media img {
  width: 100%;
  height: auto;
  display: block;
}

/* ==========================================================================
   Sidebar
   ========================================================================== */
.buf-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.buf-call-box {
  background: linear-gradient(135deg, #0b192c 0%, #1e293b 100%);
  color: #ffffff;
  padding: 2rem;
  border-radius: var(--buf-radius-md);
  text-align: center;
  box-shadow: var(--buf-shadow-md);
}
.buf-call-box h4 {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  color: #ffffff;
}
.buf-call-box p {
  font-size: 0.95rem;
  color: #cbd5e1;
  margin-bottom: 1.5rem;
}
.buf-widget {
  background: #ffffff;
  border: 1px solid var(--buf-border);
  border-radius: var(--buf-radius-md);
  padding: 1.5rem;
  box-shadow: var(--buf-shadow-sm);
}
.buf-widget-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--buf-primary);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--buf-border);
}
.buf-widget-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.buf-widget-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.65rem;
  border-radius: var(--buf-radius-sm);
  color: var(--buf-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.15s ease;
}
.buf-widget-link:hover {
  background-color: var(--buf-bg);
  color: var(--buf-accent);
  padding-left: 0.85rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.buf-footer {
  background-color: #0b192c;
  color: #f8fafc;
  margin-top: auto;
  padding: 4.5rem 0 2rem 0;
  border-top: 4px solid var(--buf-accent);
}
.buf-footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  margin-bottom: 3.5rem;
}
.buf-footer-col h4 {
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 1.25rem;
  letter-spacing: -0.01em;
}
.buf-footer-desc {
  font-size: 0.9rem;
  line-height: 1.6;
  color: #94a3b8;
  margin-bottom: 1.25rem;
}
.buf-footer-contact-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.9rem;
  color: #cbd5e1;
  margin-bottom: 0.65rem;
}
.buf-footer-contact-item a {
  color: #ffffff;
  font-weight: 700;
}
.buf-footer-contact-item a:hover {
  color: var(--buf-accent);
}
.buf-footer-contact-item svg {
  color: var(--buf-accent);
}
.buf-footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.buf-footer-links a {
  font-size: 0.9rem;
  color: #cbd5e1;
  transition: color 0.15s ease;
}
.buf-footer-links a:hover {
  color: #ffffff;
  text-decoration: underline;
}
.buf-footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.85rem;
  color: #94a3b8;
}
.buf-footer-bottom a {
  color: #ffffff;
  text-decoration: underline;
  font-weight: 600;
}
.buf-footer-bottom a:hover {
  color: var(--buf-accent);
}

/* ==========================================================================
   Sticky Mobile Call Bar
   ========================================================================== */
.buf-sticky-call-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: #0b192c;
  padding: 0.75rem 1rem;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.25);
  z-index: 1000;
  border-top: 2px solid var(--buf-accent);
}
.buf-sticky-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  width: 100%;
  padding: 0.85rem;
  background-color: var(--buf-accent);
  color: #ffffff;
  font-weight: 800;
  font-size: 1.1rem;
  border-radius: var(--buf-radius-md);
  box-shadow: 0 4px 10px rgba(220, 38, 38, 0.4);
}

/* ==========================================================================
   Responsive Media Queries
   ========================================================================== */
@media (max-width: 1024px) {
  .buf-hero-split {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .buf-service-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .buf-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .buf-footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  body {
    padding-bottom: 4.5rem; /* Space for sticky mobile call bar */
  }
  .buf-nav-menu,
  .buf-btn-call-head {
    display: none;
  }
  .buf-menu-toggle {
    display: block;
  }
  .buf-sticky-call-bar {
    display: block;
  }
  .buf-hero {
    padding: 3rem 0;
  }
  .buf-hero h1 {
    font-size: 2.15rem;
  }
  .buf-hero-points {
    grid-template-columns: 1fr;
  }
  .buf-grid-3,
  .buf-grid-2 {
    grid-template-columns: 1fr;
  }
  .buf-footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 430px) {
  html {
    font-size: 15px;
  }
  .buf-hero h1 {
    font-size: 1.85rem;
  }
  .buf-btn {
    padding: 0.75rem 1.25rem;
    font-size: 0.95rem;
  }
}