/* ==========================================================================
   MAIN LAYOUT & CORE SECTIONS
   ========================================================================== */

/* Ambient Futuristic Background Matrix */
.bg-grid-overlay {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
  z-index: var(--z-bg);
  opacity: 0.7;
}

.bg-ambient-glow {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: var(--z-bg);
  opacity: 0.25;
  transition: transform 0.8s ease-out;
}

.glow-cyan {
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, var(--accent-cyan) 0%, rgba(0, 112, 243, 0) 70%);
}

.glow-blue {
  bottom: 20%;
  right: 5%;
  background: radial-gradient(circle, var(--accent-indigo) 0%, rgba(0, 0, 0, 0) 70%);
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--section-padding-x);
  padding-right: var(--section-padding-x);
  position: relative;
  z-index: var(--z-content);
}

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

.section {
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
  position: relative;
  overflow: hidden;
}

/* Section Header Typography */
.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 64px auto;
}

.section-header.text-left {
  text-align: left;
  margin-left: 0;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: rgba(0, 240, 255, 0.06);
  border: 1px solid var(--border-cyan);
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.1);
}

.section-tag .tag-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: var(--fw-bold);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  line-height: 1.6;
  color: var(--text-muted);
  font-weight: var(--fw-regular);
}

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-header);
  transition: background-color var(--transition-smooth), border-color var(--transition-smooth), backdrop-filter var(--transition-smooth), padding var(--transition-smooth);
  padding: 20px 0;
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  padding: 14px 0;
  background-color: rgba(4, 7, 17, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Brand Wordmark */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  group: logo;
}

.brand-icon {
  width: 38px;
  height: 38px;
  transition: transform var(--transition-smooth), filter var(--transition-smooth);
}

.brand-logo:hover .brand-icon {
  transform: rotate(15deg) scale(1.08);
  filter: drop-shadow(0 0 12px var(--accent-cyan));
}

.brand-text-wrapper {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  text-transform: uppercase;
  line-height: 1.1;
  background: var(--gradient-headline);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-subtext {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  color: var(--accent-cyan);
  text-transform: uppercase;
}

/* Desktop Nav Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  position: relative;
  padding: 8px 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  transition: width var(--transition-smooth);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Mobile Toggle Hamburger */
.mobile-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  z-index: calc(var(--z-header) + 10);
  gap: 5px;
}

.mobile-nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--text-primary);
  transition: transform var(--transition-smooth), opacity var(--transition-fast);
}

.mobile-nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

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

/* Mobile Navigation Drawer */
.mobile-drawer {
  position: fixed;
  inset: 0;
  background: rgba(4, 7, 17, 0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: var(--z-header);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 32px;
  padding: 40px 24px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-20px);
  transition: opacity var(--transition-smooth), transform var(--transition-smooth);
}

.mobile-drawer.open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.mobile-nav-link {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  color: var(--accent-cyan);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 140px;
  padding-bottom: 80px;
  overflow: hidden;
}

/* Hero 3D WebGL Canvas Layer */
.hero-3d-scene-container {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-canvas);
  pointer-events: auto;
}

#hero-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.hero-content {
  position: relative;
  z-index: var(--z-content);
  text-align: center;
  max-width: 960px;
  margin: 0 auto;
  pointer-events: none; /* Let canvas capture subtle mouse events except buttons */
}

.hero-content * {
  pointer-events: auto;
}

.hero-badge-container {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  background: rgba(14, 23, 43, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-cyan);
  border-radius: var(--radius-full);
  margin-bottom: 28px;
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.15);
  animation: floatSubtle 4s ease-in-out infinite alternate;
}

@keyframes floatSubtle {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-6px); }
}

.hero-badge-icon {
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
}

.hero-badge-text {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6.5vw, 5.25rem);
  font-weight: var(--fw-extrabold);
  line-height: 1.08;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.hero-headline .text-gradient {
  background: linear-gradient(135deg, #FFFFFF 20%, #00F0FF 65%, #0070F3 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  filter: drop-shadow(0 0 35px rgba(0, 240, 255, 0.25));
}

.hero-description {
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 40px auto;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

/* Live Metrics Bar */
.hero-metrics-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 24px 32px;
  background: rgba(8, 14, 29, 0.7);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  max-width: 900px;
  margin: 0 auto;
}

.metric-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
}

.metric-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -10px;
  top: 20%;
  height: 60%;
  width: 1px;
  background: var(--border-subtle);
}

.metric-value {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  line-height: 1.1;
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.metric-value .metric-accent {
  color: var(--accent-cyan);
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 6px;
}

/* ==========================================================================
   ABOUT SECTION
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.about-text-content {
  display: flex;
  flex-direction: column;
}

.about-intro-lead {
  font-size: 1.25rem;
  font-weight: var(--fw-medium);
  line-height: 1.6;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.about-body-text {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
}

.about-pillars-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.pillar-card {
  padding: 20px;
  background: rgba(14, 23, 43, 0.5);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-smooth), transform var(--transition-smooth);
}

.pillar-card:hover {
  border-color: var(--border-cyan);
  transform: translateY(-4px);
}

.pillar-icon {
  color: var(--accent-cyan);
  margin-bottom: 12px;
}

.pillar-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  margin-bottom: 6px;
}

.pillar-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* About Visual Card / Network Visualizer */
.about-visual-container {
  position: relative;
  height: 460px;
  background: var(--gradient-dark-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-network-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.visual-overlay-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  padding: 14px 20px;
  background: rgba(8, 14, 29, 0.85);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-cyan);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.overlay-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.pulse-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulseDot 1.5s infinite;
}

/* ==========================================================================
   CAPABILITIES / TECH SECTION
   ========================================================================== */
.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.capability-card {
  padding: 32px 28px;
  background: var(--gradient-dark-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth);
}

.capability-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.capability-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-cyan);
  box-shadow: 0 20px 40px rgba(0, 240, 255, 0.1);
}

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

.capability-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid var(--border-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  margin-bottom: 20px;
  transition: transform var(--transition-smooth), background-color var(--transition-smooth);
}

.capability-card:hover .capability-icon-wrap {
  transform: scale(1.1);
  background: rgba(0, 240, 255, 0.18);
  box-shadow: var(--glow-cyan-sm);
}

.capability-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.capability-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

.capability-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-chip {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-dim);
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.capability-card:hover .tech-chip {
  color: var(--text-secondary);
  border-color: rgba(0, 240, 255, 0.2);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: rgba(3, 5, 12, 0.95);
  padding: 80px 0 40px 0;
  position: relative;
  z-index: var(--z-content);
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.footer-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 320px;
}

.footer-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-emerald);
  width: fit-content;
}

.footer-heading {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.footer-link:hover {
  color: var(--accent-cyan);
  transform: translateX(4px);
}

.footer-bottom-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.footer-copyright {
  font-family: var(--font-sans);
}

.footer-social-links {
  display: flex;
  align-items: center;
  gap: 16px;
}

.social-icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.social-icon-btn:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
}