@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;800&family=Outfit:wght@400;700;900&family=JetBrains+Mono&display=swap');

/* Master CSS Variables with Neon Color Tokens */
:root {
  --bg-primary: #030712;
  --bg-radial: radial-gradient(circle at top right, #1a0f30 0%, #030712 60%);
  --cyan-neon: #00f2fe;
  --purple-neon: #9d4edd;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --border: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 242, 254, 0.3);
  --success: #10b981;
  --error: #f43f5e;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-primary);
  background-image: var(--bg-radial);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, .brand-title {
  font-family: 'Outfit', sans-serif;
}

/* Glassmorphic Panel Utility Class */
.glass-panel {
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
}

.glass-panel:hover {
  border-color: rgba(0, 242, 254, 0.2);
  box-shadow: 0 12px 40px 0 rgba(0, 242, 254, 0.05);
}

/* Glowing Neon Text and Badges */
.neon-glow-cyan {
  text-shadow: 0 0 10px rgba(0, 242, 254, 0.5);
  color: var(--cyan-neon);
}

.neon-glow-purple {
  text-shadow: 0 0 10px rgba(157, 78, 221, 0.5);
  color: var(--purple-neon);
}

/* Navigation Bar */
header {
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 2rem;
  background: rgba(3, 7, 18, 0.8);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-badge {
  background: linear-gradient(135deg, var(--cyan-neon), var(--purple-neon));
  padding: 8px;
  border-radius: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.logo-section h1 {
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 1.5px;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition);
}

.nav-links a:hover, .nav-links a.active {
  color: var(--cyan-neon);
  text-shadow: 0 0 8px rgba(0, 242, 254, 0.3);
}

/* Buttons and Gradients */
.btn {
  padding: 0.8rem 1.8rem;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--cyan-neon), var(--purple-neon));
  color: white;
  box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 242, 254, 0.5);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--cyan-neon);
  background: rgba(0, 242, 254, 0.05);
}

/* Hero Section */
.hero {
  max-width: 1200px;
  margin: 5rem auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 4rem;
}

.hero-text h2 {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 1.5rem;
}

.hero-text p {
  color: var(--text-secondary);
  font-size: 1.15rem;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
}

/* Interactive Interactive Live Handshake Mockup */
.interactive-mockup {
  position: relative;
  padding: 2rem;
}

.viewport-mockup {
  width: 100%;
  aspect-ratio: 16/10;
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
}

.mock-header {
  background: #0b0f19;
  padding: 10px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
}

.mock-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.dot-red { background: var(--error); }
.dot-yellow { background: #eab308; }
.dot-green { background: var(--success); }

.mock-title {
  font-size: 0.8rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-secondary);
}

.mock-body {
  flex: 1;
  background: #04060a;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  text-align: center;
}

.mock-terminal {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--cyan-neon);
  text-align: left;
  width: 100%;
  max-width: 320px;
  margin-bottom: 1.5rem;
}

.mock-terminal-cursor {
  display: inline-block;
  width: 8px;
  height: 15px;
  background: var(--cyan-neon);
  animation: blink 1s step-end infinite;
}

/* Features Grid */
.features-section {
  max-width: 1200px;
  margin: 8rem auto;
  padding: 0 2rem;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h3 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.feature-card {
  padding: 2.5rem 2rem;
}

.feature-icon {
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.2);
  color: var(--cyan-neon);
  width: 50px;
  height: 50px;
  border-radius: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.feature-card h4 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Admin Dashboard CSS layout */
.admin-container {
  max-width: 1400px;
  margin: 2.5rem auto;
  padding: 0 2rem;
}

.metrics-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.metric-card {
  padding: 1.8rem;
}

.metric-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 0.75rem;
}

.metric-value {
  font-family: 'Outfit', sans-serif;
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1;
}

/* Control Controls Filters and Search Card */
.control-card {
  padding: 1.5rem 2rem;
  margin-bottom: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
}

.filter-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.input-control {
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border);
  color: white;
  padding: 0.8rem 1.2rem;
  border-radius: 10px;
  font-size: 0.9rem;
  outline: none;
  min-width: 240px;
  transition: var(--transition);
}

.input-control:focus {
  border-color: var(--cyan-neon);
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.15);
}

/* Dashboard Table Styles */
.table-panel {
  overflow-x: auto;
  margin-bottom: 2rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th, td {
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

td {
  font-size: 0.9rem;
}

tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.badge-status {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.badge-online {
  background: rgba(16, 185, 129, 0.12);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-offline {
  background: rgba(244, 63, 94, 0.12);
  color: var(--error);
  border: 1px solid rgba(244, 63, 94, 0.2);
}

/* Monospace text strings for IDs */
.id-mono {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.05);
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 0.85rem;
}

/* Pulse Beacon Animation */
@keyframes blink {
  50% { opacity: 0; }
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 242, 254, 0.5); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(0, 242, 254, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 242, 254, 0); }
}

.pulse-active {
  width: 8px;
  height: 8px;
  background-color: var(--cyan-neon);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

/* Footer Section */
footer {
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 6rem;
}

/* Media Query Responsiveness */
@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    margin: 3rem auto;
  }
  .hero-text h2 {
    font-size: 2.5rem;
  }
  .hero-actions {
    justify-content: center;
  }
  .nav-links {
    display: none; /* Mobile menu can be expanded or simplified */
  }
  .control-card {
    flex-direction: column;
    align-items: flex-start;
  }
  .input-control {
    width: 100%;
  }
}