/* ==========================================================================
   DK Solutions — Shared Stylesheet
   Production-quality, mobile-first, dark-theme design system
   ========================================================================== */

/* --------------------------------------------------------------------------
   Google Fonts
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Fraunces:wght@400;600;700&display=swap');

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  --navy:        #0B1A2E;
  --navy-mid:    #132B4A;
  --navy-deep:   #070F1C;
  --blue:        #2E75B6;
  --blue-light:  #4A9FE5;
  --blue-muted:  #1B4D7A;
  --teal:        #2BBFB3;
  --slate:       #8B9BB4;
  --text:        #C8D4E6;
  --text-strong: #E8EDF5;
  --white:       #F4F7FB;
  --amber:       #E8A838;
  --border:      rgba(46, 117, 182, 0.2);

  /* Derived tokens */
  --font-heading: 'Fraunces', serif;
  --font-body:    'DM Sans', sans-serif;
  --max-width:    1100px;
  --header-h:     72px;
  --radius-sm:    8px;
  --radius-md:    12px;
  --shadow-sm:    0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md:    0 4px 20px rgba(0, 0, 0, 0.35);
  --shadow-glow:  0 4px 24px rgba(46, 117, 182, 0.35);
  --transition:   0.3s ease;
}

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

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background-color: var(--navy);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--blue-light);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--white);
}

ul, ol {
  list-style: none;
}

/* --------------------------------------------------------------------------
   Accessibility — Skip to Content
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 10000;
  padding: 12px 24px;
  background: var(--blue);
  color: var(--white);
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: top var(--transition);
}

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

/* --------------------------------------------------------------------------
   Accessibility — Focus Styles
   -------------------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--blue-light);
  outline-offset: 3px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--blue-light);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-strong);
  line-height: 1.25;
  margin-bottom: 0.6em;
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 4vw, 2.5rem);  font-weight: 700; }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); font-weight: 600; }
h4 { font-size: 1.15rem; font-weight: 600; }

p {
  margin-bottom: 1rem;
}

strong {
  color: var(--text-strong);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Layout — Container
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11, 26, 46, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: box-shadow var(--transition);
}

main,
#main {
  position: relative;
  z-index: 1;
}

.site-header.scrolled {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

/* Header container — flex row for logo + hamburger */
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

/* Logo */
.logo img {
  height: 40px;
  width: auto;
}

/* Main navigation — on desktop, sits inside header visually via fixed positioning */
.main-nav {
  position: fixed;
  top: 0;
  right: 0;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 32px;
  padding-right: max(20px, calc((100vw - var(--max-width)) / 2 + 20px));
  z-index: 1001;
  pointer-events: auto;
}

.main-nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--slate);
  position: relative;
  padding: 4px 0;
  transition: color var(--transition);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--blue-light);
  transition: width var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--white);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

/* Hamburger toggle (mobile) */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* Hamburger open state */
.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  text-align: center;
  padding: 100px 20px 80px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(46, 117, 182, 0.2) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 20% 100%, rgba(43, 191, 179, 0.08) 0%, transparent 50%),
    var(--navy);
}

.hero::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--blue), var(--teal), var(--blue), transparent);
}

.hero h1 {
  margin-bottom: 0.5em;
}

.hero .subtext {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--slate);
  max-width: 680px;
  margin: 0 auto 2rem;
}

.hero-subhead {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--slate);
  max-width: 700px;
  margin: 0 auto 2rem;
}

.hero-actions,
.hero-cta {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* Contact hero (same glow treatment) */
.contact-hero {
  text-align: center;
  padding: 100px 20px 60px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(46, 117, 182, 0.15) 0%, transparent 60%),
    var(--navy);
}

.contact-hero::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--blue), var(--teal), var(--blue), transparent);
}

/* Legal page hero */
.legal-hero {
  text-align: center;
  padding: 100px 20px 60px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(46, 117, 182, 0.15) 0%, transparent 60%),
    var(--navy);
}

.legal-hero::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--blue), var(--teal), var(--blue), transparent);
}

/* Gradient text on hero headings */
.hero h1,
.contact-hero h1,
.legal-hero h1 {
  background: linear-gradient(135deg, var(--text-strong) 30%, var(--blue-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition),
              background var(--transition), color var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-light) 100%);
  color: var(--white);
  border: none;
  box-shadow: 0 4px 20px rgba(46, 117, 182, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 32px rgba(46, 117, 182, 0.55);
  background: linear-gradient(135deg, var(--blue-light) 0%, var(--blue) 100%);
  color: var(--white);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

.btn-secondary {
  background: transparent;
  color: var(--blue-light);
  border: 2px solid var(--blue);
}

.btn-secondary:hover {
  background: rgba(46, 117, 182, 0.1);
  color: var(--white);
  border-color: var(--blue-light);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   Content Sections
   -------------------------------------------------------------------------- */
.section {
  padding: 80px 20px;
}

.section:nth-child(even) {
  background: var(--navy-mid);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem;
}

.section-header p {
  color: var(--slate);
  font-size: 1.05rem;
}

/* Alternating section treatments for homepage & services */
.problem {
  background: var(--navy-mid);
  padding: 80px 20px;
  position: relative;
}

.problem::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.who-we-are {
  padding: 80px 20px;
  background:
    radial-gradient(ellipse 50% 60% at 90% 20%, rgba(43, 191, 179, 0.04) 0%, transparent 50%),
    var(--navy);
}

.our-products {
  padding: 80px 20px;
  background: linear-gradient(180deg, var(--navy-mid) 0%, var(--navy) 100%);
  position: relative;
}

.our-products::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

/* Services page sections */
.what-we-do {
  padding: 80px 20px;
  background: var(--navy-mid);
  position: relative;
}

.what-we-do::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.who-we-serve {
  padding: 80px 20px;
  background:
    radial-gradient(ellipse 40% 50% at 10% 50%, rgba(46, 117, 182, 0.06) 0%, transparent 50%),
    var(--navy);
}

.why-us {
  padding: 80px 20px;
  background: var(--navy-mid);
  position: relative;
}

.why-us::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

/* CTA sections */
.cta-footer,
.cta {
  padding: 80px 20px;
  text-align: center;
  position: relative;
  background:
    radial-gradient(ellipse 70% 60% at 50% 50%, rgba(46, 117, 182, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 80% 20%, rgba(43, 191, 179, 0.06) 0%, transparent 50%),
    linear-gradient(180deg, var(--navy) 0%, var(--navy-deep) 100%);
}

.cta-footer::before,
.cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue), transparent);
}

/* Contact sections */
.contact-card-section {
  padding: 0 20px 40px;
}

.contact-note {
  padding: 0 20px 60px;
  text-align: center;
}

.contact-note p {
  max-width: 600px;
  margin: 0 auto;
  color: var(--slate);
}

/* --------------------------------------------------------------------------
   Callout Boxes
   -------------------------------------------------------------------------- */
.callout {
  background: linear-gradient(135deg, var(--navy-mid) 0%, rgba(46, 117, 182, 0.08) 100%);
  border-left: 3px solid var(--blue);
  border-radius: var(--radius-sm);
  padding: 24px 28px;
  margin: 1.5rem 0;
}

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

/* Product logo on homepage cards */
.product-logo {
  width: 56px;
  height: 56px;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-logo img {
  max-width: 56px;
  max-height: 56px;
  border-radius: 8px;
}

.product-link {
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* --------------------------------------------------------------------------
   Product Cards — Grid Layout
   -------------------------------------------------------------------------- */
.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.product-card {
  position: relative;
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  overflow: hidden;
}

/* Each card gets a unique gradient top accent */
.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.product-card:nth-child(1)::before { background: linear-gradient(90deg, #2E75B6, #4A9FE5); }
.product-card:nth-child(2)::before { background: linear-gradient(90deg, #2BBFB3, #4A9FE5); }
.product-card:nth-child(3)::before { background: linear-gradient(90deg, #E8A838, #E86B5A); }
.product-card:nth-child(4)::before { background: linear-gradient(90deg, #7B68EE, #4A9FE5); }
.product-card:nth-child(5)::before { background: linear-gradient(90deg, #E86B5A, #E8A838); }

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(46, 117, 182, 0.3);
  border-color: rgba(255, 255, 255, 0.12);
}

.product-card .card-logo {
  max-height: 48px;
  margin-bottom: 1rem;
}

.product-card h3 {
  margin-bottom: 0.5rem;
}

.product-card p {
  color: var(--slate);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.product-card .learn-more {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--blue-light);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.product-card .learn-more::after {
  content: '\2192'; /* right arrow */
  transition: transform var(--transition);
}

.product-card .learn-more:hover::after {
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   "Coming Soon" Badge
   -------------------------------------------------------------------------- */
.badge-coming-soon {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--amber);
  color: var(--navy);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 4px;
}

/* --------------------------------------------------------------------------
   Service Grid (services.html)
   -------------------------------------------------------------------------- */
.service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.service-callout {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-left: 3px solid var(--blue-light);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-callout:nth-child(2) { border-left-color: var(--teal); }
.service-callout:nth-child(3) { border-left-color: var(--amber); }

.service-callout:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.service-callout h3 {
  margin-bottom: 0.5rem;
}

.service-callout p {
  color: var(--text);
  margin-bottom: 0;
}

/* Why Grid (services.html) */
.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.why-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}

.why-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 12px 12px 0 0;
  background: linear-gradient(90deg, var(--blue), var(--teal));
}

.why-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.why-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.why-card p {
  color: var(--text);
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* Audience list (services.html) */
.audience-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 16px;
}

.audience-list li {
  padding: 16px 20px 16px 48px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  position: relative;
  font-size: 0.95rem;
}

.audience-list li::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background: var(--blue-light);
  border-radius: 50%;
}

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

  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* --------------------------------------------------------------------------
   Product Detail — Alternating Row Layout (products.html)
   -------------------------------------------------------------------------- */
.product-detail {
  position: relative;
  padding: 64px 20px;
  scroll-margin-top: 100px;
}

.product-detail:nth-child(odd) {
  background: var(--navy-mid);
}

.product-detail:nth-child(even) {
  background:
    radial-gradient(ellipse 40% 50% at 80% 50%, rgba(43, 191, 179, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse 30% 40% at 10% 30%, rgba(46, 117, 182, 0.05) 0%, transparent 50%),
    var(--navy);
}

.product-detail::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.product-detail:last-of-type::after {
  display: none;
}

.product-row {
  display: flex;
  align-items: center;
  gap: 48px;
}

.product-row .product-image {
  flex: 0 0 280px;
  max-width: 280px;
  text-align: center;
}

.product-row .product-image img,
.product-row .product-image svg {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

.product-row .product-text {
  flex: 1;
}

.product-row .product-text h2 {
  margin-bottom: 8px;
}

.product-row .product-text p {
  color: var(--text);
  line-height: 1.75;
}

.product-row.reverse {
  flex-direction: row-reverse;
}

.type-badge,
.badge {
  display: inline-block;
  background: linear-gradient(135deg, rgba(46, 117, 182, 0.2) 0%, rgba(43, 191, 179, 0.15) 100%);
  color: var(--teal);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 12px;
  border: 1px solid rgba(43, 191, 179, 0.2);
}

@media (max-width: 768px) {
  .product-row,
  .product-row.reverse {
    flex-direction: column;
    text-align: center;
    gap: 24px;
  }

  .product-row .product-image {
    flex: none;
    max-width: 200px;
    margin: 0 auto;
  }
}

/* --------------------------------------------------------------------------
   Legal Pages — Two-Column Layout
   -------------------------------------------------------------------------- */
.legal-layout {
  display: flex;
  gap: 48px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 20px 80px;
}

/* Sidebar navigation */
.legal-sidebar {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  align-self: flex-start;
  flex-shrink: 0;
  width: 250px;
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: 16px;
}

.legal-sidebar nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.legal-sidebar a {
  display: block;
  padding: 8px 16px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--slate);
  border-radius: 6px;
  transition: background var(--transition), color var(--transition);
}

.legal-sidebar a:hover {
  background: rgba(46, 117, 182, 0.08);
  color: var(--text-strong);
}

.legal-sidebar a.active {
  background: rgba(46, 117, 182, 0.15);
  color: var(--blue-light);
  font-weight: 600;
}

/* Legal content area */
.legal-content {
  flex: 1;
  min-width: 0;
}

.legal-content h2 {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  scroll-margin-top: 90px;
}

.legal-content h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.legal-content ul,
.legal-content ol {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.legal-content ol {
  list-style: decimal;
}

.legal-content li {
  margin-bottom: 0.4rem;
}

/* --------------------------------------------------------------------------
   Contact Page
   -------------------------------------------------------------------------- */
.contact-card {
  max-width: 560px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-md);
  padding: 48px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--teal), var(--blue));
}

.contact-card h2 {
  margin-bottom: 0.75rem;
}

.contact-card p {
  color: var(--slate);
  margin-bottom: 2rem;
}

.contact-info {
  margin-top: 2rem;
}

.contact-company {
  color: var(--text-strong);
  font-weight: 600;
  font-size: 1.05rem;
}

.contact-location {
  color: var(--slate);
  font-size: 0.95rem;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: rgba(7, 15, 28, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top: 1px solid var(--border);
  padding: 40px 20px;
  text-align: center;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue), var(--teal), var(--blue), transparent);
}

.footer-inner,
.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-links,
.footer-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
  margin-bottom: 1rem;
}

.footer-links a,
.footer-nav a {
  font-size: 0.9rem;
  color: var(--slate);
  font-weight: 500;
  padding: 0 16px;
}

.footer-links a + a,
.footer-nav a + a {
  border-left: 1px solid rgba(139, 155, 180, 0.45);
}

.footer-links a:hover,
.footer-nav a:hover {
  color: var(--white);
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--slate);
  opacity: 0.7;
}

/* --------------------------------------------------------------------------
   Fade-In Animations
   -------------------------------------------------------------------------- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for sequential card reveals */
.fade-in:nth-child(2) { transition-delay: 0.1s; }
.fade-in:nth-child(3) { transition-delay: 0.2s; }
.fade-in:nth-child(4) { transition-delay: 0.3s; }
.fade-in:nth-child(5) { transition-delay: 0.4s; }
.fade-in:nth-child(6) { transition-delay: 0.5s; }

/* --------------------------------------------------------------------------
   Responsive — Tablet (768px - 1024px)
   -------------------------------------------------------------------------- */
@media (min-width: 768px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .container {
    padding: 0 32px;
  }
}

/* --------------------------------------------------------------------------
   Responsive — Desktop (> 1024px)
   -------------------------------------------------------------------------- */
@media (min-width: 1025px) {
  .container {
    padding: 0 40px;
  }
}

/* Nav overlay for mobile slide panel */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  z-index: 9998;
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* --------------------------------------------------------------------------
   Responsive — Mobile (< 768px)
   -------------------------------------------------------------------------- */
@media (max-width: 767px) {
  :root {
    --header-h: 60px;
  }

  /* Show hamburger, hide desktop nav */
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: auto;
    width: 75%;
    max-width: 320px;
    height: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(11, 26, 46, 0.97);
    border-left: 1px solid rgba(74, 159, 229, 0.2);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 9999;
    padding-top: calc(var(--header-h) + 16px);
    padding-right: 0;
    overflow-y: auto;
  }

  .main-nav.open {
    transform: translateX(0);
  }

  .main-nav a {
    display: block;
    padding: 16px 28px;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--slate);
    border-left: 2px solid transparent;
    text-align: left;
    width: 100%;
  }

  .main-nav a:hover {
    color: var(--text-strong);
    background: rgba(46, 117, 182, 0.08);
  }

  .main-nav a.active {
    color: var(--blue-light);
    border-left-color: var(--blue-light);
    font-weight: 600;
  }

  /* Hero adjustments */
  .hero,
  .contact-hero,
  .legal-hero {
    padding: 60px 16px 50px;
  }

  /* All named sections — mobile spacing */
  .section,
  .problem,
  .who-we-are,
  .our-products,
  .what-we-do,
  .who-we-serve,
  .why-us,
  .cta-footer,
  .cta {
    padding: 50px 16px;
  }

  /* Service grid — stack on mobile */
  .service-grid {
    grid-template-columns: 1fr;
  }

  .service-callout {
    padding: 24px 20px;
  }

  /* Why grid — stack on mobile */
  .why-grid {
    grid-template-columns: 1fr;
  }

  .why-card {
    padding: 24px 20px;
  }

  /* Audience list */
  .audience-list li {
    padding: 14px 16px 14px 40px;
    font-size: 0.9rem;
  }

  .audience-list li::before {
    left: 16px;
  }

  /* Product cards — single column */
  .product-grid {
    grid-template-columns: 1fr;
  }

  /* Product detail pages */
  .product-detail {
    padding: 40px 16px;
  }

  /* Contact sections */
  .contact-card-section {
    padding: 0 16px 32px;
  }

  .contact-note {
    padding: 0 16px 48px;
  }

  /* Legal page — sidebar becomes horizontal scroll nav */
  .legal-layout {
    flex-direction: column;
    gap: 24px;
    padding: 24px 16px 60px;
  }

  .legal-sidebar {
    position: static;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .legal-sidebar nav {
    flex-direction: row;
    gap: 4px;
    white-space: nowrap;
    padding-bottom: 8px;
  }

  .legal-sidebar a {
    flex-shrink: 0;
    padding: 6px 14px;
    font-size: 0.82rem;
  }

  /* Contact card */
  .contact-card {
    padding: 32px 20px;
  }

  /* Footer */
  .footer-links,
  .footer-nav {
    gap: 0;
  }

  .footer-links a,
  .footer-nav a {
    font-size: 0.82rem;
    padding: 0 10px;
  }
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.text-center { text-align: center; }
.text-slate  { color: var(--slate); }
.text-strong { color: var(--text-strong); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* --------------------------------------------------------------------------
   Reduced Motion — Respect user preferences
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .fade-in {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .product-card,
  .btn-primary,
  .btn-secondary {
    transition: none;
  }
}