/* ========================================
   Verizon Business — Brand Variables
   ======================================== */
:root {
  --brand-primary: #cd040b;
  --brand-accent: #000000;
  --brand-light: #f6f6f6;
  --brand-dark: #1a1a1a;
  --brand-gray: #747676;
  --brand-white: #ffffff;
  --brand-red-dark: #a00308;
  --brand-red-light: #fff0f0;
  --font-heading: 'Inter', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --max-width: 1200px;
  --radius: 8px;
  --shadow: 0 2px 12px rgba(0,0,0,.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.12);
  --transition: .25s ease;
}

/* ========================================
   Reset & Base
   ======================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--brand-dark);
  background: var(--brand-white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--brand-red-dark); }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); font-weight: 700; line-height: 1.25; color: var(--brand-dark); }
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); margin-bottom: 1rem; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); margin-bottom: .75rem; }
p { margin-bottom: 1rem; }
ul, ol { padding-left: 1.5rem; margin-bottom: 1rem; }
table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; }
th, td { padding: .75rem 1rem; text-align: left; border-bottom: 1px solid #e0e0e0; }
th { background: var(--brand-primary); color: var(--brand-white); font-weight: 600; }
tr:nth-child(even) { background: var(--brand-light); }

/* ========================================
   Container
   ======================================== */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }

/* ========================================
   Header
   ======================================== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,.06);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow); }
.header-inner {
  max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.logo { display: flex; align-items: center; gap: .625rem; font-weight: 700; font-size: 1.25rem; color: var(--brand-dark); }
.logo img { height: 36px; width: auto; }
.logo span { color: var(--brand-primary); }

/* Main Nav */
.main-nav { display: flex; align-items: center; gap: 2rem; }
.main-nav > ul { display: flex; list-style: none; gap: .25rem; padding: 0; margin: 0; }
.main-nav > ul > li { position: relative; }
.main-nav > ul > li > a {
  display: flex; align-items: center; gap: .35rem;
  padding: .5rem .875rem; border-radius: var(--radius);
  font-size: .9375rem; font-weight: 500; color: var(--brand-dark);
  transition: background var(--transition), color var(--transition);
}
.main-nav > ul > li > a:hover,
.main-nav > ul > li > a[aria-expanded="true"] { background: var(--brand-light); color: var(--brand-primary); }
.main-nav > ul > li > a .arrow { font-size: .7rem; transition: transform var(--transition); }
.main-nav > ul > li > a[aria-expanded="true"] .arrow { transform: rotate(180deg); }

/* Mega Menu */
.mega-menu {
  position: absolute; top: calc(100% + .5rem); left: 50%; transform: translateX(-50%);
  min-width: 560px; background: var(--brand-white);
  border-radius: var(--radius); box-shadow: var(--shadow-lg);
  border: 1px solid rgba(0,0,0,.06);
  padding: 1.5rem; opacity: 0; visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}
.main-nav > ul > li:hover .mega-menu,
.main-nav > ul > li > a[aria-expanded="true"] + .mega-menu { opacity: 1; visibility: visible; }
.mega-columns { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.mega-column h4 { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--brand-gray); margin-bottom: .75rem; }
.mega-column ul { list-style: none; padding: 0; margin: 0; }
.mega-column li { margin-bottom: .35rem; }
.mega-column a { font-size: .9rem; color: var(--brand-dark); padding: .25rem 0; display: block; }
.mega-column a:hover { color: var(--brand-primary); }

/* Header CTA */
.header-cta {
  background: var(--brand-primary); color: var(--brand-white);
  padding: .5rem 1.25rem; border-radius: var(--radius);
  font-weight: 600; font-size: .9rem; border: none; cursor: pointer;
  transition: background var(--transition);
}
.header-cta:hover { background: var(--brand-red-dark); color: var(--brand-white); }

/* Hamburger */
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: .5rem; z-index: 1001;
}
.hamburger span { display: block; width: 24px; height: 2px; background: var(--brand-dark); transition: var(--transition); border-radius: 2px; }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile Nav */
.mobile-nav {
  display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: var(--brand-white); z-index: 999;
  padding: 5rem 1.5rem 2rem; overflow-y: auto;
}
.mobile-nav.active { display: block; }
.mobile-nav ul { list-style: none; padding: 0; margin: 0; }
.mobile-nav > ul > li { border-bottom: 1px solid rgba(0,0,0,.06); }
.mobile-nav > ul > li > a { display: block; padding: 1rem 0; font-size: 1.1rem; font-weight: 500; color: var(--brand-dark); }
.mobile-nav .mobile-submenu { display: none; padding: 0 0 1rem 1rem; }
.mobile-nav .mobile-submenu.active { display: block; }
.mobile-nav .mobile-submenu a { display: block; padding: .4rem 0; font-size: .95rem; color: var(--brand-gray); }
.mobile-nav .mobile-cta { display: block; margin-top: 1.5rem; text-align: center; padding: .875rem; background: var(--brand-primary); color: var(--brand-white); border-radius: var(--radius); font-weight: 600; }

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .75rem 1.75rem; border-radius: var(--radius);
  font-weight: 600; font-size: .95rem; border: 2px solid transparent;
  cursor: pointer; transition: all var(--transition); text-align: center;
}
.btn-primary { background: var(--brand-primary); color: var(--brand-white); border-color: var(--brand-primary); }
.btn-primary:hover { background: var(--brand-red-dark); border-color: var(--brand-red-dark); color: var(--brand-white); }
.btn-white { background: var(--brand-white); color: var(--brand-primary); border-color: var(--brand-white); }
.btn-white:hover { background: var(--brand-light); border-color: var(--brand-light); color: var(--brand-primary); }
.btn-outline { background: transparent; color: var(--brand-primary); border-color: var(--brand-primary); }
.btn-outline:hover { background: var(--brand-primary); color: var(--brand-white); }
.btn-accent { background: var(--brand-accent); color: var(--brand-white); border-color: var(--brand-accent); }
.btn-accent:hover { background: #333; border-color: #333; color: var(--brand-white); }

/* ========================================
   Hero
   ======================================== */
.hero {
  padding: 8rem 0 5rem;
  background: linear-gradient(135deg, var(--brand-dark) 0%, #2d0001 50%, var(--brand-primary) 100%);
  color: var(--brand-white); overflow: hidden; position: relative;
}
.hero::before {
  content: ''; position: absolute; top: -50%; right: -20%; width: 80%; height: 200%;
  background: radial-gradient(circle, rgba(205,4,11,.15) 0%, transparent 60%);
  pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; position: relative; }
.hero-content h1 { color: var(--brand-white); margin-bottom: 1.25rem; }
.hero-content p { font-size: 1.125rem; color: rgba(255,255,255,.85); margin-bottom: 2rem; line-height: 1.8; }
.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-media img { border-radius: var(--radius); box-shadow: var(--shadow-lg); }

/* ========================================
   Sections
   ======================================== */
.section { padding: 5rem 0; }
.section-light { background: var(--brand-light); }
.section-dark { background: var(--brand-dark); color: var(--brand-white); }
.section-dark h2, .section-dark h3 { color: var(--brand-white); }
.section-dark p { color: rgba(255,255,255,.8); }
.section-accent { background: var(--brand-red-light); }
.brand-banner { background: var(--brand-primary); color: var(--brand-white); padding: 4rem 0; }
.brand-banner h2 { color: var(--brand-white); }
.brand-banner p { color: rgba(255,255,255,.9); }
.section-header { text-align: center; max-width: 700px; margin: 0 auto 3rem; }
.section-header p { color: var(--brand-gray); }

/* ========================================
   Grids
   ======================================== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

/* ========================================
   Cards
   ======================================== */
.card {
  background: var(--brand-white); border-radius: var(--radius);
  padding: 2rem; box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card h3 a { color: var(--brand-dark); }
.card h3 a:hover { color: var(--brand-primary); }
.card-dark {
  background: var(--brand-dark); color: var(--brand-white);
  border-radius: var(--radius); padding: 2rem;
  transition: transform var(--transition), box-shadow var(--transition);
}
.card-dark:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card-dark h3, .card-dark h4 { color: var(--brand-white); }
.card-dark p { color: rgba(255,255,255,.8); }
.card-dark a { color: var(--brand-primary); }
.card-icon { font-size: 2rem; margin-bottom: 1rem; }

/* ========================================
   Counter / Stats
   ======================================== */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; text-align: center; }
.stat-item h3 { font-size: 2.5rem; color: var(--brand-white); margin-bottom: .25rem; }
.stat-item p { color: rgba(255,255,255,.8); font-size: .95rem; }

/* ========================================
   Image-Text Alternating
   ======================================== */
.feature-block { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; margin-bottom: 4rem; }
.feature-block:nth-child(even) .feature-media { order: -1; }
.feature-media img { border-radius: var(--radius); box-shadow: var(--shadow); }
.feature-text h3 { margin-bottom: .75rem; }
.feature-text p { color: var(--brand-gray); }
.feature-text .btn { margin-top: 1rem; }

/* ========================================
   Logo Cloud / Trust
   ======================================== */
.trust-section { padding: 3rem 0; border-bottom: 1px solid rgba(0,0,0,.06); }
.trust-logos { display: flex; align-items: center; justify-content: center; gap: 3rem; flex-wrap: wrap; }
.trust-logos img { height: 40px; opacity: .6; transition: opacity var(--transition); filter: grayscale(100%); }
.trust-logos img:hover { opacity: 1; filter: none; }

/* ========================================
   AI Summary Chunk
   ======================================== */
.ai-chunk {
  border-left: 4px solid var(--brand-primary);
  background: var(--brand-red-light);
  padding: 1.5rem 2rem;
  margin: 2rem 0;
  border-radius: 0 var(--radius) var(--radius) 0;
}
.ai-chunk h4 { color: var(--brand-primary); margin-bottom: .5rem; font-size: 1rem; text-transform: uppercase; letter-spacing: .04em; }
.ai-chunk p { margin-bottom: .5rem; color: var(--brand-dark); }
.ai-chunk p:last-child { margin-bottom: 0; }

/* ========================================
   FAQ Accordion
   ======================================== */
.faq-list { max-width: 800px; margin: 0 auto; }
details.accordion-item {
  border-bottom: 1px solid rgba(0,0,0,.08);
  padding: 0;
}
details.accordion-item summary {
  padding: 1.25rem 0;
  font-weight: 600; font-size: 1.05rem;
  cursor: pointer; list-style: none;
  display: flex; justify-content: space-between; align-items: center;
  color: var(--brand-dark);
  transition: color var(--transition);
}
details.accordion-item summary:hover { color: var(--brand-primary); }
details.accordion-item summary::-webkit-details-marker { display: none; }
details.accordion-item summary::after { content: '+'; font-size: 1.5rem; font-weight: 300; color: var(--brand-primary); transition: transform var(--transition); }
details.accordion-item[open] summary::after { content: '\2212'; }
details.accordion-item .accordion-content { padding: 0 0 1.25rem; color: var(--brand-gray); line-height: 1.8; }

/* ========================================
   Breadcrumbs
   ======================================== */
.breadcrumbs {
  padding: 1rem 0;
  font-size: .875rem;
  color: var(--brand-gray);
}
.breadcrumbs a { color: var(--brand-gray); }
.breadcrumbs a:hover { color: var(--brand-primary); }
.breadcrumbs span { margin: 0 .5rem; }

/* ========================================
   CTA Block
   ======================================== */
.cta-block {
  background: linear-gradient(135deg, var(--brand-dark) 0%, var(--brand-primary) 100%);
  color: var(--brand-white); padding: 4rem; border-radius: var(--radius);
  text-align: center;
}
.cta-block h2 { color: var(--brand-white); margin-bottom: 1rem; }
.cta-block p { color: rgba(255,255,255,.85); margin-bottom: 2rem; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-block .btn { margin: 0 .5rem; }

/* ========================================
   Testimonials
   ======================================== */
.testimonial-card {
  background: var(--brand-white); border-radius: var(--radius);
  padding: 2rem; box-shadow: var(--shadow); position: relative;
}
.testimonial-card::before { content: '\201C'; font-size: 4rem; color: var(--brand-primary); opacity: .2; position: absolute; top: .5rem; left: 1rem; font-family: Georgia, serif; }
.testimonial-card p { font-style: italic; color: var(--brand-gray); margin-bottom: 1rem; padding-top: 1rem; }
.testimonial-author { font-weight: 600; color: var(--brand-dark); }
.testimonial-role { font-size: .85rem; color: var(--brand-gray); }

/* ========================================
   HowTo Steps
   ======================================== */
.howto-steps { counter-reset: step; max-width: 700px; margin: 2rem auto; }
.howto-step {
  display: flex; gap: 1.5rem; margin-bottom: 2rem; position: relative;
  padding-left: .5rem;
}
.howto-step::before {
  counter-increment: step;
  content: counter(step);
  flex-shrink: 0;
  width: 48px; height: 48px;
  background: var(--brand-primary); color: var(--brand-white);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.1rem;
}
.howto-step-content h3 { margin-bottom: .35rem; }
.howto-step-content p { color: var(--brand-gray); margin-bottom: 0; }

/* ========================================
   Related Services
   ======================================== */
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 2rem; }
.related-card {
  padding: 1.5rem; border: 1px solid rgba(0,0,0,.08);
  border-radius: var(--radius); transition: all var(--transition);
}
.related-card:hover { border-color: var(--brand-primary); box-shadow: var(--shadow); }
.related-card h4 { margin-bottom: .5rem; }
.related-card p { font-size: .9rem; color: var(--brand-gray); margin-bottom: .75rem; }
.related-card a { font-weight: 600; font-size: .9rem; }

/* ========================================
   Comparison Table
   ======================================== */
.comparison-table { overflow-x: auto; margin: 2rem 0; }
.comparison-table table { min-width: 600px; }
.comparison-table th { background: var(--brand-primary); color: var(--brand-white); font-weight: 600; }
.comparison-table td { padding: .75rem 1rem; }

/* ========================================
   Footer
   ======================================== */
.site-footer {
  background: var(--brand-dark); color: rgba(255,255,255,.7);
  padding: 3rem 0 1.5rem;
}
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 2rem; margin-bottom: 2rem; }
.footer-brand .logo { color: var(--brand-white); margin-bottom: 1rem; }
.footer-brand p { font-size: .9rem; color: rgba(255,255,255,.6); max-width: 280px; }
.footer-col h4 { color: var(--brand-white); font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 1rem; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: .5rem; }
.footer-col a { color: rgba(255,255,255,.6); font-size: .9rem; }
.footer-col a:hover { color: var(--brand-white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 1.5rem;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 1rem;
  font-size: .85rem;
}
.footer-legal { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-legal a { color: rgba(255,255,255,.5); }
.footer-legal a:hover { color: var(--brand-white); }
.footer-badges { display: flex; align-items: center; gap: 1rem; font-size: .8rem; color: rgba(255,255,255,.5); }

/* ========================================
   Page-level content wrapper
   ======================================== */
.page-hero {
  padding: 7rem 0 3rem;
  background: linear-gradient(135deg, var(--brand-dark) 0%, #2d0001 100%);
  color: var(--brand-white);
}
.page-hero h1 { color: var(--brand-white); margin-bottom: .75rem; }
.page-hero p { color: rgba(255,255,255,.8); font-size: 1.1rem; }
.page-content { padding: 3rem 0 5rem; }
.page-content h2 { margin-top: 2.5rem; }

/* ========================================
   Content Visibility (Lighthouse)
   ======================================== */
.section:not(:first-of-type) { content-visibility: auto; contain-intrinsic-size: auto 500px; }

/* ========================================
   Reduced Motion
   ======================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}

/* ========================================
   Focus Visible
   ======================================== */
:focus-visible {
  outline: 2px solid var(--brand-primary);
  outline-offset: 2px;
}

/* ========================================
   Print
   ======================================== */
@media print {
  .site-header, .mobile-nav, .site-footer, .cta-block { display: none; }
  body { font-size: 12pt; color: #000; }
  a { color: #000; text-decoration: underline; }
  .hero { background: #f0f0f0 !important; color: #000 !important; padding: 2rem 0; }
  .hero-content h1, .hero-content p { color: #000 !important; }
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
  .mega-menu { min-width: 420px; }
  .mega-columns { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .main-nav > ul { display: none; }
  .hamburger { display: flex; }
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-media { display: none; }
  .hero-buttons { justify-content: center; }
  .hero { padding: 7rem 0 3.5rem; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-block { grid-template-columns: 1fr; }
  .feature-block:nth-child(even) .feature-media { order: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .related-grid { grid-template-columns: 1fr; }
  .cta-block { padding: 2.5rem 1.5rem; }
  .page-hero { padding: 6rem 0 2rem; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-buttons { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
}