/* ==========================================================================
   PK & ASSOCIATES GROUP INC. — MODERN ENTERPRISE DESIGN SYSTEM
   Certified Service-Disabled Veteran-Owned Small Business (SDVOSB)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties & Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Brand Color Tokens (Strict WCAG AA Compliance: >= 4.5:1 on light backgrounds) */
  --color-primary: #B85214;        /* Darkened brand terracotta orange for accessible contrast */
  --color-primary-hover: #963E09;  /* Deep hover shade */
  --color-primary-active: #7A3207;
  --color-primary-light: #FDF4ED;  /* Soft tinted background */
  --color-primary-glow: rgba(184, 82, 20, 0.15);

  --color-secondary: #B87B44;      /* Brand bronze / warm gold */
  --color-secondary-hover: #9B6230;
  --color-secondary-light: #FAF5F0;

  --color-navy: #0B1528;           /* Deep military command navy */
  --color-navy-surface: #13223D;   /* Dark card surface */
  --color-navy-light: #1E345C;     /* Subtle dark border */

  --color-dark: #0F172A;           /* Primary text / slate-900 */
  --color-slate: #334155;          /* Secondary text / slate-700 */
  --color-muted: #64748B;          /* Muted text / slate-500 */
  --color-light: #F8FAFC;          /* Page background / slate-50 */
  --color-surface: #FFFFFF;        /* Card & container background */
  --color-surface-subtle: #F1F5F9; /* Alternate card background */
  --color-border: #E2E8F0;         /* Primary border */
  --color-border-hover: #CBD5E1;   /* Hover border */

  --color-success: #15803D;        /* Accessible green */
  --color-success-bg: #DCFCE7;
  --color-info: #0369A1;           /* Accessible blue */
  --color-info-bg: #E0F2FE;
  --color-alert: #B91C1C;          /* Accessible red */
  --color-alert-bg: #FEE2E2;

  /* Typography */
  --font-heading: "Libre Caslon Text", "Georgia", "Times New Roman", serif;
  --font-body: "Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  /* Fluid Typography using clamp() */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.825rem + 0.25vw, 0.9375rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1.05rem + 0.35vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.35rem + 0.75vw, 1.875rem);
  --text-3xl: clamp(1.875rem, 1.65rem + 1.1vw, 2.375rem);
  --text-4xl: clamp(2.25rem, 1.95rem + 1.5vw, 3rem);
  --text-5xl: clamp(2.75rem, 2.3rem + 2.25vw, 3.75rem);

  /* Spacing Scale */
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4.5rem;
  --space-4xl: 6rem;

  /* Layout & Sizing */
  --container-max: 1280px;
  --container-narrow: 960px;
  --header-height: 80px;

  /* Border Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Elevations & Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.03);
  --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.09), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --shadow-glow: 0 0 20px rgba(184, 82, 20, 0.25);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 350ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Focus Indicator (WCAG 2.4.7) */
  --focus-outline: 3px solid #B85214;
  --focus-offset: 3px;
}

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

html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: clip; /* Cleanly clip without disabling position: sticky */
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-slate);
  background-color: var(--color-light);
  overflow-x: clip; /* Cleanly clip horizontal overflows without breaking sticky header */
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-dark);
  line-height: 1.25;
  font-weight: 700;
  margin-block-end: var(--space-sm);
  text-wrap: balance;
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
  margin-block-end: var(--space-md);
  max-width: 75ch;
}

p:last-child {
  margin-block-end: 0;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

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

img, svg, picture, video {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  padding-inline-start: var(--space-lg);
  margin-block-end: var(--space-md);
}

li {
  margin-block-end: var(--space-xs);
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* Focus styles for keyboard accessibility */
:focus-visible {
  outline: var(--focus-outline);
  outline-offset: var(--focus-offset);
}

/* Screen reader only utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  inset-inline-start: var(--space-md);
  background: var(--color-navy);
  color: #FFFFFF;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-sm);
  z-index: 9999;
  font-weight: 600;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-md);
}

/* --------------------------------------------------------------------------
   3. Layout Containers & Grid System
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-xl);
  }
}

.container-narrow {
  max-width: var(--container-narrow);
}

.section-padding {
  padding-block: var(--space-2xl);
}

@media (min-width: 768px) {
  .section-padding {
    padding-block: var(--space-3xl);
  }
}

@media (min-width: 1200px) {
  .section-padding {
    padding-block: var(--space-4xl);
  }
}

/* Header & Sticky glassmorphism nav (must be direct child of body) */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.98);
}

/* Header Top Alert / Badge Bar */
.header-topbar {
  background-color: var(--color-navy);
  color: #FFFFFF;
  font-size: var(--text-xs);
  padding-block: 0.4rem;
  border-bottom: 1px solid var(--color-navy-light);
}

.header-topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.topbar-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.topbar-badge .star-icon {
  color: var(--color-secondary);
  display: inline-block;
}

.topbar-contact {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.topbar-contact a {
  color: #E2E8F0;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: color var(--transition-fast);
}

.topbar-contact a:hover {
  color: #FFFFFF;
  text-decoration: underline;
}

/* Header Main Navigation Bar */
.header-nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  min-height: 48px; /* Touch target */
}

.brand-logo img {
  height: 44px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
}

/* Desktop Navigation Menu */
.primary-nav {
  display: none;
}

@media (min-width: 1024px) {
  .primary-nav {
    display: flex;
    align-items: center;
    gap: var(--space-md);
  }

  .nav-list {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0.25rem;
  }

  .nav-item {
    position: relative;
    margin: 0;
  }

  .nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.6rem 0.85rem;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-dark);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    min-height: 48px; /* Accessibility touch target */
  }

  .nav-link:hover,
  .nav-link:focus-visible {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
  }

  .nav-link.active {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
    box-shadow: inset 0 -2px 0 var(--color-primary);
  }

  /* Submenu Dropdowns */
  .nav-dropdown {
    position: absolute;
    top: 100%;
    inset-inline-start: 0;
    min-width: 280px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    padding: var(--space-xs);
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
    z-index: 1050;
  }

  .nav-item.has-dropdown:hover .nav-dropdown,
  .nav-item.has-dropdown:focus-within .nav-dropdown,
  .nav-dropdown.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-dropdown li {
    margin: 0;
  }

  .dropdown-link {
    display: block;
    padding: 0.6rem 0.85rem;
    font-size: var(--text-sm);
    color: var(--color-slate);
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .dropdown-link:hover,
  .dropdown-link:focus-visible {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
  }

  .dropdown-link.active {
    color: var(--color-primary);
    font-weight: 700;
    background-color: var(--color-primary-light);
  }
}

/* Header CTAs */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* Mobile Nav Toggle Button (Ergonomic >= 48px target, accessible ARIA trigger) */
.mobile-nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  color: var(--color-dark);
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.mobile-nav-toggle:hover,
.mobile-nav-toggle:focus-visible {
  color: var(--color-primary);
  background: var(--color-primary-light);
  border-color: var(--color-primary);
}

@media (min-width: 1024px) {
  .mobile-nav-toggle {
    display: none;
  }
}

/* Mobile Navigation Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: var(--header-height);
  inset-inline-start: 0;
  width: 100%;
  height: calc(100vh - var(--header-height));
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl);
  overflow-y: auto;
  padding: var(--space-lg) var(--space-md) var(--space-3xl);
  display: none;
  flex-direction: column;
  gap: var(--space-lg);
  z-index: 999;
}

.mobile-nav-drawer.is-open {
  display: flex;
  animation: mobileMenuSlideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes mobileMenuSlideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem var(--space-md);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-dark);
  border-radius: var(--radius-sm);
  min-height: 48px;
  background-color: var(--color-surface);
  border: 1px solid transparent;
}

.mobile-nav-link:hover,
.mobile-nav-link:focus-visible {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.mobile-nav-link.active {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  border-color: var(--color-primary);
}

.mobile-submenu-toggle {
  background: none;
  border: none;
  padding: 0.5rem;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-slate);
}

.mobile-submenu {
  list-style: none;
  padding-inline-start: var(--space-md);
  margin-block-start: var(--space-2xs);
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  border-inline-start: 2px solid var(--color-border);
  margin-inline-start: var(--space-md);
}

.mobile-submenu.is-open {
  display: flex;
}

.mobile-submenu .dropdown-link {
  padding: 0.65rem var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-slate);
  min-height: 44px;
}

.mobile-submenu .dropdown-link.active {
  color: var(--color-primary);
  font-weight: 700;
}

.mobile-drawer-contact {
  padding-block-start: var(--space-lg);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* --------------------------------------------------------------------------
   4. Buttons & Interactive Controls
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.8rem 1.6rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.2;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  text-decoration: none;
  transition: all var(--transition-fast);
  text-align: center;
  min-height: 48px; /* Strict mobile ergonomic requirement */
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #FFFFFF;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-primary:active {
  background-color: var(--color-primary-active);
  transform: translateY(0);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-dark);
  border-color: var(--color-border);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background-color: var(--color-surface-subtle);
  border-color: var(--color-slate);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.btn-accent {
  background-color: var(--color-navy);
  color: #FFFFFF;
  border-color: var(--color-navy);
}

.btn-accent:hover,
.btn-accent:focus-visible {
  background-color: var(--color-navy-surface);
  border-color: var(--color-navy-surface);
  color: #FFFFFF;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-outline-primary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline-primary:hover,
.btn-outline-primary:focus-visible {
  background-color: var(--color-primary-light);
  color: var(--color-primary-hover);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--text-xs);
  min-height: 40px;
}

.btn-lg {
  padding: 1rem 2.2rem;
  font-size: var(--text-base);
  min-height: 52px;
}

.btn-block {
  width: 100%;
}

/* Badge Component */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  line-height: 1;
}

.badge-military {
  background-color: #FEF3C7;
  color: #92400E;
  border: 1px solid #FCD34D;
}

.badge-primary {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  border: 1px solid rgba(184, 82, 20, 0.2);
}

.badge-navy {
  background-color: var(--color-navy-light);
  color: #FFFFFF;
}

/* --------------------------------------------------------------------------
   5. Hero Banner Section
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, #FFFFFF 0%, var(--color-light) 60%, var(--color-secondary-light) 100%);
  padding-block: var(--space-2xl) var(--space-3xl);
  border-bottom: 1px solid var(--color-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: var(--space-3xl);
  }
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-badge-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-block-end: var(--space-md);
}

.hero-title {
  font-size: var(--text-4xl);
  margin-block-end: var(--space-md);
  color: var(--color-navy);
  letter-spacing: -0.02em;
}

.hero-title span.accent-text {
  color: var(--color-primary);
  display: block;
}

.hero-lead {
  font-size: var(--text-lg);
  color: var(--color-slate);
  margin-block-end: var(--space-xl);
  line-height: 1.6;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-block-end: var(--space-xl);
}

/* Hero Key Indicators / Metric Strip */
.hero-indicators {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  width: 100%;
  padding-block-start: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

@media (min-width: 640px) {
  .hero-indicators {
    grid-template-columns: repeat(4, 1fr);
  }
}

.indicator-item {
  display: flex;
  flex-direction: column;
}

.indicator-value {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.1;
}

.indicator-label {
  font-size: var(--text-xs);
  color: var(--color-muted);
  font-weight: 500;
  margin-block-start: 0.2rem;
}

/* Hero Media Wrap */
.hero-media-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(255, 255, 255, 0.8);
  aspect-ratio: 16 / 11;
  background-color: var(--color-border);
}

.hero-media-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.hero-media-wrap:hover img {
  transform: scale(1.02);
}

.hero-media-card-floating {
  position: absolute;
  bottom: var(--space-md);
  inset-inline-start: var(--space-md);
  background: rgba(11, 21, 40, 0.92);
  backdrop-filter: blur(8px);
  color: #FFFFFF;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: var(--shadow-lg);
  max-width: 85%;
}

.floating-card-title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-block-end: 0.2rem;
}

.floating-card-text {
  font-size: var(--text-xs);
  color: #E2E8F0;
  margin: 0;
}

/* --------------------------------------------------------------------------
   6. Cards, Grid Sections & Capabilities
   -------------------------------------------------------------------------- */
.section-header {
  text-align: center;
  max-width: 800px;
  margin-inline: auto;
  margin-block-end: var(--space-3xl);
}

.section-eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-block-end: var(--space-xs);
}

.section-title {
  font-size: var(--text-3xl);
  color: var(--color-navy);
}

.section-subtitle {
  font-size: var(--text-base);
  color: var(--color-slate);
  margin-inline: auto;
}

/* Multi-Column Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

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

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

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

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

.grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

/* Standard Interactive Card Component */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  position: relative;
  min-width: 0; /* Prevent flex/grid item overflow */
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-hover);
}

.card-icon-wrap {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-block-end: var(--space-md);
}

.card-icon-wrap svg {
  width: 28px;
  height: 28px;
}

.card-title {
  font-size: var(--text-xl);
  margin-block-end: var(--space-sm);
  color: var(--color-navy);
}

.card-description {
  font-size: var(--text-sm);
  color: var(--color-slate);
  margin-block-end: var(--space-md);
  flex-grow: 1;
}

.card-list {
  list-style: none;
  padding: 0;
  margin-block-end: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.card-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: var(--text-sm);
  color: var(--color-slate);
  margin: 0;
}

.card-list-check {
  color: var(--color-primary);
  flex-shrink: 0;
  margin-block-start: 0.2rem;
}

.card-footer {
  margin-block-start: auto;
  padding-block-start: var(--space-md);
  border-top: 1px solid var(--color-surface-subtle);
}

/* Feature Spotlight / Split Section */
.split-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

@media (min-width: 992px) {
  .split-section {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
  }

  .split-section.reversed {
    direction: rtl;
  }

  .split-section.reversed > * {
    direction: ltr;
  }
}

.split-image-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  aspect-ratio: 4 / 3;
}

.split-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --------------------------------------------------------------------------
   7. Federal Contracting, SDVOSB Credentials & Data Tables
   -------------------------------------------------------------------------- */
.credentials-banner {
  background-color: var(--color-navy);
  color: #FFFFFF;
  border-radius: var(--radius-xl);
  padding: var(--space-2xl) var(--space-xl);
  box-shadow: var(--shadow-xl);
}

.credentials-banner h2,
.credentials-banner h3 {
  color: #FFFFFF;
}

.credentials-banner p {
  color: #E2E8F0;
}

.credentials-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  margin-block: var(--space-xl);
}

.meta-box {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.meta-box-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-secondary);
  font-weight: 700;
  margin-block-end: 0.25rem;
}

.meta-box-value {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: 700;
  color: #FFFFFF;
}

/* Responsive Table Wrapper */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-block: var(--space-lg);
  background: var(--color-surface);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: start;
  font-size: var(--text-sm);
}

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

.data-table th {
  background-color: var(--color-surface-subtle);
  color: var(--color-dark);
  font-weight: 700;
  font-family: var(--font-body);
  text-transform: uppercase;
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
}

.data-table tbody tr:hover {
  background-color: var(--color-primary-light);
}

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

.code-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  background: var(--color-surface-subtle);
  color: var(--color-navy);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

/* --------------------------------------------------------------------------
   8. FAQ Accordion (Clean, Accessible & WCAG Compliant)
   -------------------------------------------------------------------------- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: 850px;
  margin-inline: auto;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.faq-item[open] {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.faq-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-dark);
  cursor: pointer;
  list-style: none; /* Hide default triangle */
  min-height: 48px;
  gap: var(--space-md);
  user-select: none;
}

.faq-summary::-webkit-details-marker {
  display: none;
}

.faq-summary:hover,
.faq-summary:focus-visible {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  transition: transform var(--transition-base);
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
}

.faq-content {
  padding: 0 var(--space-lg) var(--space-lg);
  color: var(--color-slate);
  font-size: var(--text-base);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   9. Forms, Inputs & Consultation Booking
   -------------------------------------------------------------------------- */
.form-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-xl);
}

@media (min-width: 768px) {
  .form-card {
    padding: var(--space-2xl);
  }
}

.form-group {
  margin-block-end: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-dark);
  margin-block-end: 0.35rem;
}

.form-label .required {
  color: var(--color-alert);
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  font-size: var(--text-base);
  color: var(--color-dark);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 48px;
}

.form-control:hover {
  border-color: var(--color-border-hover);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

.form-help {
  font-size: var(--text-xs);
  color: var(--color-muted);
  margin-block-start: 0.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

.form-feedback {
  display: none;
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  margin-block-end: var(--space-md);
}

.form-feedback.success {
  display: block;
  background-color: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid rgba(21, 128, 61, 0.2);
}

.form-feedback.error {
  display: block;
  background-color: var(--color-alert-bg);
  color: var(--color-alert);
  border: 1px solid rgba(185, 28, 28, 0.2);
}

/* --------------------------------------------------------------------------
   10. Global Multi-Column Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-navy);
  color: #E2E8F0;
  border-top: 1px solid var(--color-navy-surface);
  margin-block-start: auto;
}

.footer-main {
  padding-block: var(--space-3xl) var(--space-2xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
}

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

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1.25fr 1.25fr;
    gap: var(--space-xl);
  }
}

.footer-col-brand {
  display: flex;
  flex-direction: column;
}

.footer-logo {
  max-width: 190px;
  height: auto;
  margin-block-end: var(--space-md);
  border-radius: var(--radius-sm);
  background: #FFFFFF;
  padding: 0.35rem 0.5rem;
}

.footer-brand-text {
  font-size: var(--text-sm);
  color: #94A3B8;
  line-height: 1.6;
  margin-block-end: var(--space-lg);
}

.footer-col-title {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
  color: #FFFFFF;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-block-end: var(--space-md);
  position: relative;
  padding-block-end: 0.4rem;
}

.footer-col-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  inset-inline-start: 0;
  width: 32px;
  height: 2px;
  background-color: var(--color-primary);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-links li {
  margin: 0;
}

.footer-links a {
  color: #94A3B8;
  font-size: var(--text-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding-block: 0.2rem;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: #FFFFFF;
  transform: translateX(4px);
}

.footer-contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: #94A3B8;
  margin: 0;
}

.footer-contact-item svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--color-secondary);
  margin-block-start: 0.2rem;
}

.footer-contact-item a {
  color: #94A3B8;
}

.footer-contact-item a:hover {
  color: #FFFFFF;
  text-decoration: underline;
}

/* Footer Operating Hours Block (Semantic Definition List) */
.hours-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-block-end: var(--space-md);
  font-size: var(--text-sm);
}

.hours-block {
  background: rgba(255, 255, 255, 0.04);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  border-inline-start: 3px solid var(--color-secondary);
}

.hours-title {
  font-weight: 700;
  color: #FFFFFF;
  margin-block-end: 0.15rem;
}

.hours-detail {
  color: #CBD5E1;
}

/* Footer Certification Badge */
.footer-badge-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-xs);
  margin-block-start: var(--space-sm);
}

.footer-cert-img {
  width: 140px;
  height: auto;
  border-radius: var(--radius-sm);
  background: #FFFFFF;
  padding: 0.35rem;
  box-shadow: var(--shadow-md);
}

/* Social Links Directory */
.social-links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  list-style: none;
  padding: 0;
  margin-block-start: var(--space-sm);
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
  transition: all var(--transition-fast);
}

.social-link svg {
  width: 20px;
  height: 20px;
}

.social-link:hover,
.social-link:focus-visible {
  background: var(--color-primary);
  color: #FFFFFF;
  transform: translateY(-2px);
}

/* Footer Bottom Legal Bar */
.footer-bottom {
  padding-block: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: var(--text-xs);
  color: #94A3B8;
}

.footer-bottom .container {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  align-items: center;
  text-align: center;
}

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

.footer-legal-links {
  display: flex;
  gap: var(--space-md);
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-legal-links a,
.footer-legal-links button {
  color: #94A3B8;
  font-size: var(--text-xs);
  text-decoration: underline;
  text-underline-offset: 3px;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

.footer-legal-links a:hover,
.footer-legal-links button:hover {
  color: #FFFFFF;
}

/* --------------------------------------------------------------------------
   11. Back to Top Button
   -------------------------------------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: var(--space-xl);
  inset-inline-end: var(--space-xl);
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
  color: #FFFFFF;
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base), background-color var(--transition-fast);
  z-index: 990;
}

.back-to-top svg {
  width: 22px;
  height: 22px;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover,
.back-to-top:focus-visible {
  background-color: var(--color-primary-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}

/* --------------------------------------------------------------------------
   12. Accessible Modal Dialogs (Privacy & Terms)
   -------------------------------------------------------------------------- */
.modal-dialog {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  width: calc(100% - 2rem);
  max-width: 800px;
  max-height: 85vh;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.25);
  z-index: 2000;
  padding: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.modal-dialog.is-open {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(4px);
  z-index: 1999;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.modal-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.modal-title {
  font-size: var(--text-xl);
  color: var(--color-navy);
  margin: 0;
}

.modal-close-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  color: var(--color-slate);
  transition: all var(--transition-fast);
}

.modal-close-btn:hover,
.modal-close-btn:focus-visible {
  background: var(--color-surface-subtle);
  color: var(--color-dark);
}

.modal-body {
  padding: var(--space-lg);
  overflow-y: auto;
  font-size: var(--text-sm);
  color: var(--color-slate);
  line-height: 1.7;
}

.modal-body h3 {
  font-size: var(--text-base);
  margin-block-start: var(--space-md);
  margin-block-end: var(--space-xs);
  color: var(--color-navy);
}

/* --------------------------------------------------------------------------
   13. Breadcrumbs Component
   -------------------------------------------------------------------------- */
.breadcrumb-nav {
  padding-block: var(--space-sm);
  font-size: var(--text-sm);
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.breadcrumb-list li {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
}

.breadcrumb-separator {
  color: var(--color-muted);
}

.breadcrumb-list a {
  color: var(--color-muted);
}

.breadcrumb-list a:hover {
  color: var(--color-primary);
}

.breadcrumb-current {
  color: var(--color-dark);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   14. Print Styles
   -------------------------------------------------------------------------- */
@media print {
  .site-header,
  .site-footer,
  .mobile-nav-toggle,
  .back-to-top,
  .btn,
  .hero-cta-group {
    display: none !important;
  }

  body {
    background: #FFFFFF;
    color: #000000;
  }

  .container {
    max-width: 100%;
    padding: 0;
  }
}