:root {
  --color-primary: rgb(21, 62, 92);
  --color-primary-dark: rgb(13, 40, 60);
  --color-primary-light: rgb(32, 94, 138);
  --color-secondary: rgb(217, 83, 30);
  --color-secondary-hover: rgb(190, 70, 24);
  --color-tertiary: rgb(44, 122, 123);
  --color-tertiary-light: rgb(232, 245, 245);
  --color-bg-base: rgb(249, 250, 252);
  --color-bg-surface: rgb(255, 255, 255);
  --color-bg-alt: rgb(241, 244, 248);
  --color-bg-dark: rgb(15, 23, 42);
  --color-text-main: rgb(30, 41, 59);
  --color-text-muted: rgb(71, 85, 105);
  --color-text-light: rgb(148, 163, 184);
  --color-text-white: rgb(255, 255, 255);
  --color-border: rgb(226, 232, 240);
  --color-border-dark: rgb(51, 65, 85);
  --color-alert-bg: rgb(254, 242, 242);
  --color-alert-border: rgb(254, 202, 202);
  --color-alert-text: rgb(153, 27, 27);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 18px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 10px 25px rgba(15, 23, 42, 0.12);
  --shadow-warm: 0 4px 15px rgba(217, 83, 30, 0.25);
  --font-base: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  --font-heading: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --max-width: 1200px;
}

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

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

body {
  font-family: var(--font-base);
  color: var(--color-text-main);
  background-color: var(--color-bg-base);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 72px;
}

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

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

a {
  color: var(--color-primary-light);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

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

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

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

.header-top {
  background-color: var(--color-primary-dark);
  color: var(--color-text-light);
  font-size: 0.85rem;
  padding: 6px 0;
}

.header-top-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-top a {
  color: rgb(226, 232, 240);
  text-decoration: none;
}

.header-top a:hover {
  color: rgb(255, 255, 255);
}

.header-main-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
}

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

.brand-name {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  line-height: 1.2;
}

.brand-tagline {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-secondary);
}

.nav-desktop {
  display: none;
}

@media (min-width: 992px) {
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: 24px;
  }
}

.nav-link {
  color: var(--color-text-main);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 8px 4px;
  position: relative;
}

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

/* Dropdown Menu */
.nav-dropdown-wrapper {
  position: relative;
}

.nav-dropdown-btn {
  background: none;
  border: none;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-main);
  padding: 8px 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-dropdown-btn:hover, .nav-dropdown-btn:focus {
  color: var(--color-secondary);
}

.nav-dropdown-btn svg {
  width: 14px;
  height: 14px;
  transition: transform 0.2s ease;
}

.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 260px;
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 8px 0;
  list-style: none;
  z-index: 1050;
}

.nav-dropdown-wrapper:hover .nav-dropdown-menu,
.nav-dropdown-wrapper:focus-within .nav-dropdown-menu {
  display: block;
}

.nav-dropdown-item a {
  display: block;
  padding: 8px 18px;
  color: var(--color-text-main);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
}

.nav-dropdown-item a:hover, .nav-dropdown-item a:focus {
  background-color: var(--color-bg-alt);
  color: var(--color-secondary);
}

/* Header Action */
.header-action {
  display: none;
}

@media (min-width: 992px) {
  .header-action {
    display: flex;
    align-items: center;
  }
}

.btn-header-call {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-secondary);
  color: var(--color-text-white);
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  box-shadow: var(--shadow-warm);
  transition: background-color 0.2s ease, transform 0.1s ease;
}

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

.mobile-menu-toggle {
  background: none;
  border: 1px solid var(--color-border);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
}

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

/* Mobile Nav Drawer */
.mobile-nav {
  display: none;
  background-color: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
  padding: 16px 20px;
}

.mobile-nav.open {
  display: block;
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mobile-nav-list a {
  display: block;
  padding: 10px 0;
  color: var(--color-text-main);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav-services {
  padding-left: 14px;
  margin-top: 6px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mobile-nav-services a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-bottom: none;
  padding: 4px 0;
}

/* Breadcrumbs */
.breadcrumbs-bar {
  background-color: var(--color-bg-alt);
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.85rem;
}

.breadcrumbs-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.breadcrumbs-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
}

.breadcrumbs-item a {
  color: var(--color-primary);
  text-decoration: none;
}

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

.breadcrumbs-sep {
  color: var(--color-text-light);
}

.breadcrumbs-current {
  color: var(--color-text-main);
  font-weight: 600;
}

/* Hero Section */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-text-white);
  padding: 48px 0 56px;
  position: relative;
  overflow: hidden;
}

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

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

.hero-content h1 {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: rgb(255, 255, 255);
}

@media (min-width: 768px) {
  .hero-content h1 {
    font-size: 2.8rem;
  }
}

.hero-subtitle {
  font-size: 1.1rem;
  line-height: 1.6;
  color: rgb(226, 232, 240);
  margin-bottom: 24px;
}

.hero-key-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 28px;
}

.fact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  background-color: rgba(255, 255, 255, 0.12);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  color: rgb(241, 245, 249);
}

.fact-item svg {
  width: 16px;
  height: 16px;
  color: rgb(253, 186, 116);
  flex-shrink: 0;
}

.hero-cta-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

@media (min-width: 480px) {
  .hero-cta-group {
    flex-direction: row;
    align-items: center;
  }
}

.btn-hero-call {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background-color: var(--color-secondary);
  color: var(--color-text-white);
  font-size: 1.1rem;
  font-weight: 800;
  padding: 16px 28px;
  border-radius: var(--radius-md);
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  transition: transform 0.15s ease, background-color 0.15s ease;
}

.btn-hero-call:hover, .btn-hero-call:focus {
  background-color: var(--color-secondary-hover);
  color: var(--color-text-white);
  transform: translateY(-2px);
}

.hero-call-note {
  font-size: 0.85rem;
  color: rgb(203, 213, 225);
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 3px solid rgba(255, 255, 255, 0.15);
}

.hero-image-wrapper img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* Sections */
.section {
  padding: 56px 0;
}

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

.section-dark {
  background-color: var(--color-bg-dark);
  color: var(--color-text-white);
}

.section-header {
  margin-bottom: 36px;
}

.section-header.centered {
  text-align: center;
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-tertiary);
  margin-bottom: 8px;
}

.section-dark .section-tag {
  color: rgb(153, 246, 228);
}

.section-title {
  font-size: 1.85rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-primary-dark);
  margin-bottom: 12px;
}

.section-dark .section-title {
  color: rgb(255, 255, 255);
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.2rem;
  }
}

.section-lead {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.section-dark .section-lead {
  color: rgb(203, 213, 225);
}

/* Diagnostic & Content Grid */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

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

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

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

.grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 576px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

/* Feature Cards & Info Blocks */
.info-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.info-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.info-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 12px;
}

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

/* Process Timeline / Steps */
.step-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.step-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-text-white);
  font-weight: 800;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-body h3 {
  font-size: 1.15rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.step-body p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Urgent Callout Box */
.urgent-box {
  background-color: var(--color-alert-bg);
  border: 2px solid var(--color-alert-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin: 32px 0;
  color: var(--color-alert-text);
}

.urgent-box h3 {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: rgb(127, 29, 29);
}

.urgent-box p {
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 12px;
}

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

/* In-Content Call Box */
.call-action-box {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-text-white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  margin: 40px 0;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.call-action-box h3 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: rgb(255, 255, 255);
}

.call-action-box p {
  font-size: 1rem;
  color: rgb(226, 232, 240);
  max-width: 680px;
  margin: 0 auto 20px;
}

.call-action-box .btn-call {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background-color: var(--color-secondary);
  color: var(--color-text-white);
  font-size: 1.15rem;
  font-weight: 800;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
  transition: background-color 0.15s ease;
}

.call-action-box .btn-call:hover, .call-action-box .btn-call:focus {
  background-color: var(--color-secondary-hover);
  color: var(--color-text-white);
}

/* Editorial / Prose Content */
.prose {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-main);
}

.prose p {
  margin-bottom: 18px;
}

.prose h2 {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--color-primary-dark);
  margin-top: 36px;
  margin-bottom: 16px;
  line-height: 1.3;
}

.prose h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-top: 24px;
  margin-bottom: 12px;
}

.prose ul, .prose ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.prose li {
  margin-bottom: 8px;
  color: var(--color-text-muted);
}

/* Technical Details Comparison Table */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 28px 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
  background-color: var(--color-bg-surface);
}

.data-table th, .data-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border);
}

.data-table th {
  background-color: var(--color-bg-alt);
  color: var(--color-primary-dark);
  font-weight: 700;
}

.data-table tr:last-child td {
  border-bottom: none;
}

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

.faq-item {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
}

.faq-item h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.faq-item p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Service Area Cards */
.area-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  border-left: 4px solid var(--color-tertiary);
}

.area-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.area-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 12px;
}

/* Site Footer */
.site-footer {
  background-color: var(--color-bg-dark);
  color: rgb(203, 213, 225);
  padding: 56px 0 24px;
  font-size: 0.9rem;
}

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

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}

.footer-col h4 {
  color: rgb(255, 255, 255);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: rgb(203, 213, 225);
  text-decoration: none;
}

.footer-links a:hover, .footer-links a:focus {
  color: rgb(253, 186, 116);
  text-decoration: underline;
}

.footer-address {
  font-style: normal;
  line-height: 1.6;
  color: rgb(148, 163, 184);
  margin-top: 12px;
}

.footer-address a {
  color: rgb(226, 232, 240);
}

.footer-bottom {
  border-top: 1px solid var(--color-border-dark);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  font-size: 0.8rem;
  color: rgb(148, 163, 184);
}

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

.footer-legal a {
  color: rgb(148, 163, 184);
  text-decoration: none;
}

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

/* Sticky Mobile Call Bar */
.mobile-call-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-primary-dark);
  padding: 10px 16px;
  z-index: 9999;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

@media (min-width: 769px) {
  .mobile-call-bar {
    display: none;
  }
}

.mobile-call-info {
  display: flex;
  flex-direction: column;
}

.mobile-call-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: rgb(203, 213, 225);
}

.mobile-call-number {
  font-size: 0.95rem;
  font-weight: 700;
  color: rgb(255, 255, 255);
}

.mobile-call-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--color-secondary);
  color: var(--color-text-white);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}