/* ==========================================================================
   NEUROQUDIT RESEARCH & DEVELOPMENT — CORE STYLESHEET
   Harmonized with Neuroqudit Blue/Cyan Brand Identity & Futuristic UI
   ========================================================================== */

:root {
  /* Brand Color Palette */
  --bg-darkest: #02050c;
  --bg-primary: #040915;
  --bg-secondary: #081124;
  --bg-card: rgba(8, 17, 36, 0.75);
  --bg-card-hover: rgba(12, 25, 52, 0.85);
  --bg-glass: rgba(14, 27, 56, 0.45);

  /* Brand Blues & Cyans from Logo */
  --brand-cyan: #00d2ff;
  --brand-azure: #0099ff;
  --brand-blue: #0066cc;
  --brand-deep-blue: #004499;
  --brand-glow: rgba(0, 210, 255, 0.35);
  --brand-glow-subtle: rgba(0, 153, 255, 0.15);

  /* Multidisciplinary Accent Accents */
  --accent-organoid: #00f5d4;
  /* Bioluminescent Cyan-Green */
  --accent-neuro: #38bdf8;
  /* Synaptic Electric Blue */
  --accent-molecular: #60a5fa;
  /* Macromolecular Azure */
  --accent-quantum: #818cf8;
  /* Qudit Indigo-Violet */
  --accent-success: #10b981;

  /* Typography & Neutral Colors */
  --text-white: #ffffff;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-light: rgba(255, 255, 255, 0.08);
  --border-brand: rgba(0, 210, 255, 0.22);
  --border-brand-hover: rgba(0, 210, 255, 0.6);

  /* Layout & Sizing */
  --max-width: 1280px;
  --nav-height: 80px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-darkest);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  overflow-x: hidden;
}

body {
  background-color: var(--bg-darkest);
  min-height: 100vh;
  line-height: 1.65;
  color: var(--text-primary);
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Background Atmosphere & Ambient Gradients */
.ambient-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.18;
  pointer-events: none;
}

.glow-orb-1 {
  top: -10%;
  left: 15%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--brand-cyan) 0%, transparent 70%);
}

.glow-orb-2 {
  top: 40%;
  right: -5%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--brand-blue) 0%, transparent 70%);
  opacity: 0.14;
}

.glow-orb-3 {
  bottom: 10%;
  left: 5%;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, var(--accent-quantum) 0%, transparent 70%);
  opacity: 0.12;
}

/* Grid Line Overlay Pattern */
.cyber-grid-overlay {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(0, 210, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 210, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(circle at 50% 50%, black 40%, transparent 90%);
  -webkit-mask-image: radial-gradient(circle at 50% 50%, black 40%, transparent 90%);
  pointer-events: none;
  z-index: 0;
}

/* Interactive Canvas Layer */
#quantum-bg-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

/* Content Container Wrapper */
.main-wrapper {
  position: relative;
  z-index: 2;
  width: 100%;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography Enhancements */
h1,
h2,
h3,
h4,
.font-heading {
  font-family: 'Space Grotesk', -apple-system, sans-serif;
  letter-spacing: -0.025em;
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.2;
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 15%, var(--brand-cyan) 65%, var(--brand-azure) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.gradient-text-alt {
  background: linear-gradient(135deg, var(--brand-cyan) 0%, #38bdf8 50%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Top Telemetry / Advisory Banner */
.top-telemetry-bar {
  background: rgba(4, 9, 21, 0.95);
  border-bottom: 1px solid rgba(0, 210, 255, 0.15);
  padding: 8px 24px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 50;
  font-family: 'Space Grotesk', monospace;
}

.telemetry-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-organoid);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-organoid);
  animation: pulse-glow 2s infinite;
  display: inline-block;
}

@keyframes pulse-glow {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(0, 245, 212, 0.7);
  }

  70% {
    transform: scale(1.1);
    box-shadow: 0 0 0 8px rgba(0, 245, 212, 0);
  }

  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(0, 245, 212, 0);
  }
}

.telemetry-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.telemetry-link {
  color: var(--brand-cyan);
  text-decoration: none;
  transition: var(--transition-fast);
}

.telemetry-link:hover {
  text-decoration: underline;
  color: var(--text-white);
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  height: var(--nav-height);
  background: rgba(2, 5, 12, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  z-index: 100;
  transition: var(--transition-normal);
}

.site-header.scrolled {
  background: rgba(2, 5, 12, 0.92);
  border-bottom: 1px solid var(--border-brand);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.6);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.brand-logo-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.brand-logo-icon {
  height: 48px;
  width: 48px;
  object-fit: contain;
  filter: drop-shadow(0 0 12px rgba(0, 210, 255, 0.45));
  transition: transform var(--transition-fast);
}

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

.brand-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--text-white);
  line-height: 1;
}

.brand-tagline {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--brand-cyan);
  text-transform: uppercase;
  margin-top: 3px;
}

.brand-logo-wrap:hover .brand-logo-icon {
  transform: scale(1.06) rotate(3deg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
  padding: 6px 0;
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--brand-cyan), var(--brand-azure));
  transition: width var(--transition-fast);
}

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

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

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

/* Primary & Secondary Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.925rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-normal);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, #00d2ff 0%, #0077b6 100%);
  color: #02050c;
  box-shadow: 0 0 25px rgba(0, 210, 255, 0.4);
  position: relative;
  overflow: hidden;
  font-weight: 700;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 35px rgba(0, 210, 255, 0.65);
}

.btn-secondary {
  background: rgba(14, 27, 56, 0.7);
  color: var(--text-white);
  border: 1px solid var(--border-brand);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(0, 210, 255, 0.12);
  border-color: var(--brand-cyan);
  color: var(--brand-cyan);
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(0, 210, 255, 0.25);
}

.btn-icon-right {
  transition: transform var(--transition-fast);
}

.btn:hover .btn-icon-right {
  transform: translateX(4px);
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-brand);
  color: var(--text-white);
  font-size: 1.4rem;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* HERO SECTION */
.hero-section {
  position: relative;
  padding: 80px 0 100px;
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(0, 210, 255, 0.08);
  border: 1px solid rgba(0, 210, 255, 0.25);
  color: var(--brand-cyan);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: 'Space Grotesk', monospace;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.4rem;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.hero-description {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

/* Live Benchmarks / Metrics Bar */
.metrics-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding-top: 32px;
  border-top: 1px solid var(--border-light);
}

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

.metric-value {
  font-size: 2.1rem;
  font-weight: 700;
  color: var(--text-white);
  font-family: 'Space Grotesk', sans-serif;
  line-height: 1.1;
  margin-bottom: 4px;
}

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

.metric-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

/* Hero Showcase Visual Card */
.hero-visual-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-brand);
  background: var(--bg-card);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), 0 0 50px rgba(0, 210, 255, 0.15);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.hero-visual-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 35px 80px rgba(0, 0, 0, 0.9), 0 0 70px rgba(0, 210, 255, 0.28);
}

.hero-img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  display: block;
  filter: brightness(0.95) contrast(1.05);
}

.hero-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(3, 7, 18, 0.9) 100%);
  pointer-events: none;
}

.telemetry-floating-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  background: rgba(8, 17, 36, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-brand);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.telemetry-status-box {
  display: flex;
  align-items: center;
  gap: 12px;
}

.telemetry-info-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-white);
  font-family: 'Space Grotesk', sans-serif;
}

.telemetry-info-sub {
  font-size: 0.75rem;
  color: var(--brand-cyan);
  font-family: 'Space Grotesk', monospace;
}

.telemetry-code {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.75rem;
  background: rgba(0, 210, 255, 0.1);
  color: var(--brand-cyan);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 210, 255, 0.2);
}

/* SECTION HEADERS */
.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 60px;
}

.section-subtitle {
  color: var(--brand-cyan);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 14px;
  display: block;
  font-family: 'Space Grotesk', monospace;
}

.section-title {
  font-size: 2.5rem;
  line-height: 1.2;
  margin-bottom: 18px;
}

.section-intro {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* SECTION 1: ABOUT & CONVERGENCE MANIFESTO */
.manifesto-section {
  padding: 100px 0;
  position: relative;
  background: linear-gradient(180deg, var(--bg-darkest) 0%, var(--bg-primary) 50%, var(--bg-darkest) 100%);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.manifesto-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.manifesto-content h3 {
  font-size: 2rem;
  margin-bottom: 20px;
}

.manifesto-p {
  color: var(--text-secondary);
  font-size: 1.025rem;
  line-height: 1.8;
  margin-bottom: 20px;
}

.manifesto-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 32px;
}

.highlight-box {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: var(--transition-fast);
}

.highlight-box:hover {
  border-color: var(--border-brand);
  transform: translateY(-2px);
}

.highlight-icon {
  font-size: 1.5rem;
  color: var(--brand-cyan);
  margin-bottom: 10px;
}

.highlight-box h4 {
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.highlight-box p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Convergence Diagram Card */
.convergence-card-visual {
  background: var(--bg-card);
  border: 1px solid var(--border-brand);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.convergence-card-visual::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(0, 210, 255, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.manifesto-logo-center {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 28px;
}

.manifesto-logo-center img {
  height: 90px;
  width: auto;
  filter: drop-shadow(0 0 20px rgba(0, 210, 255, 0.5));
}

.convergence-pills-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.convergence-pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: rgba(14, 27, 56, 0.6);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  color: var(--text-white);
  transition: var(--transition-fast);
}

.convergence-pill:hover {
  border-color: var(--brand-cyan);
  background: rgba(0, 210, 255, 0.1);
  transform: translateX(4px);
}

.convergence-pill .pill-tag {
  font-size: 0.75rem;
  padding: 3px 8px;
  border-radius: 4px;
  font-family: monospace;
}

/* SECTION 2: THE 5 RESEARCH PARADIGMS */
.paradigms-section {
  padding: 110px 0;
  position: relative;
}

.paradigms-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.paradigm-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
}

.paradigm-card.featured-card {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
}

.paradigm-card:hover {
  border-color: var(--brand-cyan);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.7), 0 0 35px var(--brand-glow-subtle);
  transform: translateY(-4px);
}

.paradigm-media-wrap {
  position: relative;
  overflow: hidden;
  height: 260px;
}

.paradigm-card.featured-card .paradigm-media-wrap {
  height: 100%;
  min-height: 380px;
}

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

.paradigm-card:hover .paradigm-img {
  transform: scale(1.05);
}

.paradigm-badge-floating {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(2, 5, 12, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-brand);
  color: var(--brand-cyan);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  font-family: 'Space Grotesk', monospace;
  text-transform: uppercase;
}

.paradigm-body {
  padding: 32px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.paradigm-category {
  font-size: 0.8rem;
  font-family: 'Space Grotesk', monospace;
  color: var(--brand-cyan);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.paradigm-title {
  font-size: 1.6rem;
  margin-bottom: 14px;
}

.paradigm-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 24px;
  flex-grow: 1;
}

.paradigm-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 16px;
  background: rgba(4, 9, 21, 0.6);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
}

.spec-cell {
  display: flex;
  flex-direction: column;
}

.spec-name {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: 'Space Grotesk', monospace;
}

.spec-value {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-white);
  font-family: 'Space Grotesk', monospace;
}

.paradigm-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-light);
  padding-top: 18px;
}

.paradigm-link-btn {
  color: var(--brand-cyan);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-fast);
}

.paradigm-link-btn:hover {
  color: var(--text-white);
  transform: translateX(4px);
}

/* SECTION 3: INTERACTIVE PARADIGM EXPLORER & CONVERGENCE MATRIX */
.matrix-section {
  padding: 100px 0;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.explorer-box {
  background: var(--bg-card);
  border: 1px solid var(--border-brand);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.6);
}

.explorer-nav {
  display: flex;
  overflow-x: auto;
  background: rgba(4, 9, 21, 0.9);
  border-bottom: 1px solid var(--border-brand);
}

.explorer-tab-btn {
  flex: 1;
  min-width: 180px;
  padding: 20px 24px;
  background: transparent;
  border: none;
  border-right: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
  position: relative;
}

.explorer-tab-btn:hover {
  background: rgba(0, 210, 255, 0.05);
  color: var(--text-white);
}

.explorer-tab-btn.active {
  background: rgba(0, 210, 255, 0.12);
  color: var(--brand-cyan);
}

.explorer-tab-btn.active::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--brand-cyan);
  box-shadow: 0 0 10px var(--brand-cyan);
}

.tab-badge {
  font-size: 0.7rem;
  font-family: monospace;
  color: var(--text-muted);
  text-transform: uppercase;
}

.explorer-tab-btn.active .tab-badge {
  color: var(--brand-cyan);
}

.explorer-body {
  padding: 40px;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tab-left h3 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.tab-left p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 24px;
}

.tab-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.tab-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.tab-feature-icon {
  color: var(--brand-cyan);
  margin-top: 2px;
  flex-shrink: 0;
}

.tab-right-metrics {
  background: rgba(4, 9, 21, 0.8);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.telemetry-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.telemetry-key {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: 'Space Grotesk', monospace;
}

.telemetry-val {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--brand-cyan);
  font-family: 'Space Grotesk', monospace;
}

.progress-bar-container {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 6px;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--brand-blue), var(--brand-cyan));
  border-radius: 3px;
}

/* SECTION 4: APPLIED SOLUTIONS & COMPLEX PROBLEMS */
.solutions-section {
  padding: 110px 0;
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.solution-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.solution-card:hover {
  border-color: var(--border-brand);
  transform: translateY(-4px);
  background: var(--bg-card-hover);
}

.solution-icon-box {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-sm);
  background: rgba(0, 210, 255, 0.1);
  border: 1px solid rgba(0, 210, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-cyan);
  font-size: 1.5rem;
  margin-bottom: 22px;
}

.solution-card h3 {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.solution-card p {
  color: var(--text-secondary);
  font-size: 0.925rem;
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
}

.solution-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.solution-tag {
  font-size: 0.75rem;
  font-family: 'Space Grotesk', monospace;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
}

/* SECTION 5: SCIENTIFIC RIGOR & GOVERNANCE */
.governance-section {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--bg-darkest) 0%, var(--bg-primary) 100%);
  border-top: 1px solid var(--border-light);
}

.governance-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.gov-card {
  background: rgba(8, 17, 36, 0.5);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 30px;
}

.gov-badge {
  font-size: 0.75rem;
  color: var(--brand-cyan);
  font-family: 'Space Grotesk', monospace;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  display: block;
}

.gov-card h4 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.gov-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* SECTION 6: CONTACT & COLLABORATION TERMINAL */
.contact-section {
  padding: 110px 0 130px;
  position: relative;
}

.contact-terminal-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  background: var(--bg-card);
  border: 1px solid var(--border-brand);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.8), 0 0 50px rgba(0, 210, 255, 0.15);
}

.contact-info-panel {
  padding: 48px;
  background: linear-gradient(135deg, rgba(8, 17, 36, 0.95) 0%, rgba(4, 9, 21, 0.98) 100%);
  border-right: 1px solid var(--border-brand);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-info-panel h3 {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.contact-lead-p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 36px;
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 36px;
}

.channel-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: rgba(14, 27, 56, 0.6);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: var(--transition-fast);
}

.channel-card:hover {
  border-color: var(--brand-cyan);
  background: rgba(0, 210, 255, 0.08);
  transform: translateX(4px);
}

.channel-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(0, 210, 255, 0.12);
  border: 1px solid rgba(0, 210, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-cyan);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.channel-meta {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.channel-title {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-family: 'Space Grotesk', monospace;
}

.channel-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-white);
  word-break: break-all;
}

.copy-btn {
  background: transparent;
  border: none;
  color: var(--brand-cyan);
  cursor: pointer;
  padding: 6px;
  border-radius: 4px;
  transition: var(--transition-fast);
}

.copy-btn:hover {
  color: var(--text-white);
  background: rgba(0, 210, 255, 0.15);
}

.contact-form-panel {
  padding: 48px;
}

.form-group {
  margin-bottom: 22px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-family: 'Space Grotesk', sans-serif;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 14px 18px;
  background: rgba(4, 9, 21, 0.7);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-white);
  font-size: 0.95rem;
  font-family: 'Inter', sans-serif;
  transition: var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--brand-cyan);
  box-shadow: 0 0 15px rgba(0, 210, 255, 0.25);
  background: rgba(4, 9, 21, 0.95);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-feedback {
  margin-top: 14px;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  display: none;
}

.form-feedback.success {
  display: block;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid var(--accent-success);
  color: #34d399;
}

/* FOOTER */
.site-footer {
  background: var(--bg-darkest);
  border-top: 1px solid var(--border-light);
  padding: 80px 0 30px;
  position: relative;
  z-index: 10;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 60px;
  border-bottom: 1px solid var(--border-light);
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-top: 18px;
  max-width: 340px;
}

.footer-col-title {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-white);
  margin-bottom: 20px;
  font-family: 'Space Grotesk', sans-serif;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--brand-cyan);
  padding-left: 4px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 30px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer-bottom-links a:hover {
  color: var(--brand-cyan);
}

/* Notification Toast */
.toast-notice {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(8, 17, 36, 0.95);
  border: 1px solid var(--brand-cyan);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), 0 0 20px var(--brand-glow);
  color: var(--text-white);
  padding: 14px 22px;
  border-radius: var(--radius-sm);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 999;
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition-normal);
  pointer-events: none;
}

.toast-notice.show {
  transform: translateY(0);
  opacity: 1;
}

/* RESPONSIVE BREAKPOINTS */
@media (max-width: 1080px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-visual-card {
    max-width: 600px;
    margin: 0 auto;
  }

  .paradigms-grid {
    grid-template-columns: 1fr;
  }

  .paradigm-card.featured-card {
    grid-column: span 1;
    grid-template-columns: 1fr;
  }

  .manifesto-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .tab-panel.active {
    grid-template-columns: 1fr;
  }

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

  .contact-terminal-grid {
    grid-template-columns: 1fr;
  }

  .contact-info-panel {
    border-right: none;
    border-bottom: 1px solid var(--border-brand);
  }

  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.4rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .top-telemetry-bar {
    display: none;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    background: rgba(2, 5, 12, 0.98);
    flex-direction: column;
    padding: 30px;
    gap: 20px;
    border-bottom: 1px solid var(--border-brand);
    transform: translateY(-120%);
    transition: var(--transition-normal);
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .mobile-nav-toggle {
    display: block;
  }

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

  .manifesto-highlights {
    grid-template-columns: 1fr;
  }

  .solutions-grid,
  .governance-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-top-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}