/* 
  Sovereign Agent Systems (SAS) - Master Stylesheet
  Theme: DGX Spark & Deep Indigo
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  /* Color Palette */
  --bg-deep: #0A0D1A;
  --bg-base: #0E1225;
  --bg-elevated: #161B33;
  --primary: #00F0FF;          /* DGX Spark Teal */
  --primary-glow: rgba(0, 240, 255, 0.15);
  --primary-glow-heavy: rgba(0, 240, 255, 0.35);
  --secondary: #76B900;        /* Nvidia Green */
  --secondary-glow: rgba(118, 185, 0, 0.15);
  --text-primary: #F8FAFC;
  --text-muted: #8F9CAE;
  --border: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(0, 240, 255, 0.4);
  --destructive: #EF4444;
  --card-bg: rgba(22, 27, 51, 0.5);
  
  /* Fonts */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Layout */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --container-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* Cybernetic Grid & Atmospheric Blobs */
.cyber-grid {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(0, 240, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.015) 1px, transparent 1px);
  background-size: 50px 50px;
  background-position: center top;
  z-index: 1;
  pointer-events: none;
}

.glow-blob {
  position: absolute;
  border-radius: var(--radius-full);
  filter: blur(120px);
  opacity: 0.12;
  pointer-events: none;
  z-index: 0;
}

.glow-blob-1 {
  top: 10%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: var(--primary);
  animation: float-blob 20s infinite alternate;
}

.glow-blob-2 {
  top: 50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: var(--secondary);
  animation: float-blob 25s infinite alternate-reverse;
}

@keyframes float-blob {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(50px, 80px) scale(1.1); }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  margin-bottom: 1rem;
}

h3 {
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  margin-bottom: 0.75rem;
}

p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

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

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

code {
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.05);
  padding: 0.2rem 0.4rem;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
  border: 1px solid var(--border);
}

/* Utilities */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 2;
}

.text-gradient {
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-secondary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-spacing {
  padding: 8rem 0;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 1rem;
  display: block;
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 13, 26, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

header.scrolled {
  background: rgba(10, 13, 26, 0.9);
  padding: 0.5rem 0;
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100px;
  transition: var(--transition);
}

header.scrolled .nav-wrapper {
  height: 80px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-img {
  height: 82px;
  width: auto;
  transition: var(--transition);
}

header.scrolled .logo-img {
  height: 62px;
}

footer .logo-img {
  height: 55px;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 2rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.5rem 0;
}

.nav-link:hover, .nav-item:hover > .nav-link {
  color: var(--primary);
}

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

.dropdown-icon {
  font-size: 0.75em;
  margin-left: 0.25rem;
  transition: var(--transition);
}

.dropdown:hover .dropdown-icon {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: -20px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  min-width: 260px;
  padding: 0.75rem 0;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 1001;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-link {
  display: block;
  padding: 0.75rem 1.5rem;
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.dropdown-link:hover {
  color: var(--primary);
  background: rgba(255, 255, 255, 0.02);
  padding-left: 1.75rem;
}

.dropdown-divider {
  height: 1px;
  background: var(--border);
  margin: 0.5rem 0;
}

/* Hamburger & Mobile Menu */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1100;
}

.hamburger-box {
  width: 24px;
  height: 18px;
  display: inline-block;
  position: relative;
}

.hamburger-inner, .hamburger-inner::before, .hamburger-inner::after {
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  position: absolute;
  transition: var(--transition);
}

.hamburger-inner {
  top: 50%;
  transform: translateY(-50%);
}

.hamburger-inner::before {
  content: "";
  top: -8px;
}

.hamburger-inner::after {
  content: "";
  bottom: -8px;
}

.hamburger.active .hamburger-inner {
  background-color: transparent;
}

.hamburger.active .hamburger-inner::before {
  transform: translateY(8px) rotate(45deg);
}

.hamburger.active .hamburger-inner::after {
  transform: translateY(-8px) rotate(-45deg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  gap: 0.5rem;
  transition: var(--transition);
}

.btn-primary {
  background: var(--primary);
  color: var(--bg-deep);
  box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
  background: #33f3ff;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px var(--primary-glow-heavy);
  color: var(--bg-deep);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--border);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--secondary);
  color: var(--bg-deep);
  box-shadow: 0 4px 20px var(--secondary-glow);
}

.btn-accent:hover {
  background: #8de400;
  transform: translateY(-2px);
  color: var(--bg-deep);
}

/* Cards & Containers */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0;
  transition: var(--transition);
}

.card:hover {
  border-color: rgba(0, 240, 255, 0.2);
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.card:hover::before {
  opacity: 1;
}

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 140px;
  overflow: hidden;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.interactive-node-canvas {
  width: 100%;
  max-width: 450px;
  height: 450px;
  border-radius: var(--radius-full);
  background: radial-gradient(circle, rgba(22, 27, 51, 0.8) 0%, rgba(10, 13, 26, 0) 70%);
  border: 1px solid rgba(0, 240, 255, 0.1);
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  box-shadow: 0 0 80px rgba(0, 240, 255, 0.05);
}

/* Service Clearance Badges */
.badge-container {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.clearance-badge {
  background: rgba(0, 240, 255, 0.06);
  border: 1px solid rgba(0, 240, 255, 0.15);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Info Grids */
.grid-3col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.grid-2col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.form-control {
  width: 100%;
  background: rgba(10, 13, 26, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.25rem;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.1);
}

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

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.faq-question-btn {
  width: 100%;
  background: none;
  border: none;
  padding: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  text-align: left;
}

.faq-question {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.faq-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  transition: var(--transition);
}

.faq-icon::before {
  content: "+";
  font-size: 1.5rem;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-answer-inner {
  padding: 0 2rem 2rem 2rem;
  border-top: 1px solid transparent;
  color: var(--text-muted);
}

/* Active FAQ State */
.faq-item.active {
  border-color: rgba(0, 240, 255, 0.25);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-item.active .faq-answer-inner {
  border-color: var(--border);
}

/* Sub-page Specific Layouts */
.page-header {
  padding: 10rem 0 4rem 0;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.page-content {
  padding: 6rem 0;
}

/* Government Page Table */
.gov-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-family: var(--font-display);
}

.gov-table th, .gov-table td {
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem;
  text-align: left;
}

.gov-table th {
  color: var(--primary);
  font-weight: 600;
  background: rgba(255, 255, 255, 0.01);
}

.gov-table td {
  color: var(--text-muted);
}

.gov-table tr:hover td {
  color: var(--text-primary);
  background: rgba(0, 240, 255, 0.01);
}

.gov-table strong {
  color: var(--text-primary);
  font-family: var(--font-mono);
}

/* Methodology Steps */
.methodology-timeline {
  position: relative;
  margin-top: 4rem;
}

.methodology-step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2rem;
  margin-bottom: 4rem;
  position: relative;
}

.methodology-step::before {
  content: "";
  position: absolute;
  top: 80px;
  left: 39px;
  bottom: -40px;
  width: 2px;
  background: var(--border);
}

.methodology-step:last-child::before {
  display: none;
}

.methodology-num {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  border: 2px solid var(--primary);
  background: var(--bg-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary);
  box-shadow: 0 0 20px var(--primary-glow);
}

.methodology-step:nth-child(2) .methodology-num {
  border-color: var(--secondary);
  color: var(--secondary);
  box-shadow: 0 0 20px var(--secondary-glow);
}

.methodology-step:nth-child(3) .methodology-num {
  border-color: var(--text-primary);
  color: var(--text-primary);
}

/* Blog layouts */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
}

.blog-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.blog-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.blog-title {
  margin-bottom: 1rem;
}

.blog-title a {
  color: var(--text-primary);
}

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

/* Single Blog Post styling */
.post-layout {
  max-width: 800px;
  margin: 0 auto;
  padding: 10rem 2rem 6rem 2rem;
}

.post-header {
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2rem;
}

.post-meta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.post-content p {
  color: var(--text-primary);
  opacity: 0.85;
  font-size: 1.15rem;
  line-height: 1.75;
  margin-bottom: 2rem;
}

.post-content h2, .post-content h3 {
  margin-top: 3rem;
  margin-bottom: 1rem;
}

.post-content ul, .post-content ol {
  margin-left: 2rem;
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

.post-content li {
  margin-bottom: 0.5rem;
  color: var(--text-muted);
}

.post-content blockquote {
  border-left: 4px solid var(--primary);
  padding-left: 1.5rem;
  font-style: italic;
  color: var(--text-muted);
  margin: 2.5rem 0;
}

/* Legal text formatting */
.legal-wrapper {
  max-width: 800px;
  margin: 0 auto;
  color: var(--text-muted);
}

.legal-wrapper h2 {
  margin-top: 3rem;
  color: var(--text-primary);
}

.legal-wrapper p, .legal-wrapper li {
  font-size: 1rem;
}

.legal-wrapper ul {
  margin-left: 2rem;
  margin-bottom: 1.5rem;
}

.legal-wrapper li {
  margin-bottom: 0.5rem;
}

/* Footer styling */
footer {
  background: #060810;
  border-top: 1px solid var(--border);
  padding: 5rem 0 3rem 0;
  font-size: 0.95rem;
}

.footer-layout {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-desc {
  font-size: 0.95rem;
  max-width: 320px;
}

.footer-links-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  color: var(--text-muted);
}

.footer-link:hover {
  color: var(--primary);
  padding-left: 0.25rem;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-bottom a {
  color: var(--text-muted);
  text-decoration: underline;
}

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

.parent-llc-tag {
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: rgba(0, 240, 255, 0.03);
  border: 1px solid rgba(0, 240, 255, 0.1);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  display: inline-block;
  margin-top: 0.5rem;
}

/* Animations classes */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive adjustments */
@media (max-width: 992px) {
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }
  
  .hero-layout .btn-container {
    justify-content: center;
  }
  
  .badge-container {
    justify-content: center;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .grid-3col {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-layout {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
  
  .footer-brand {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  .nav-wrapper,
  header.scrolled .nav-wrapper {
    height: 80px;
  }

  .logo-img,
  header.scrolled .logo-img {
    height: 62px;
  }

  .nav-menu {
    position: fixed;
    top: 80px;
    left: 100%;
    right: 0;
    bottom: 0;
    height: calc(100vh - 80px);
    background: var(--bg-deep);
    border-top: 1px solid var(--border);
    flex-direction: column;
    padding: 3rem 2rem;
    align-items: flex-start;
    gap: 1.5rem;
    transition: var(--transition);
    z-index: 999;
    overflow-y: auto;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .hamburger {
    display: block;
  }
  
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0.5rem 0 0 1rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  
  .dropdown.active .dropdown-menu {
    max-height: 300px;
  }
  
  .grid-3col, .grid-2col, .blog-grid {
    grid-template-columns: 1fr;
  }
  
  .methodology-step {
    grid-template-columns: 60px 1fr;
    gap: 1rem;
  }
  
  .methodology-num {
    width: 60px;
    height: 60px;
    font-size: 1.35rem;
  }
  
  .methodology-step::before {
    left: 29px;
  }
  
  .footer-layout {
    grid-template-columns: 1fr;
  }
  
  .footer-brand {
    grid-column: span 1;
  }
  
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }
}