:root {
  --primary-color: #00ff41;
  --secondary-color: #00d4ff;
  --dark-bg: #0a0e27;
  --darker-bg: #050816;
  --card-bg: #0f1729;
  --light-text: #ffffff;
  --gray-text: #8b92a8;
  --border-color: rgba(0, 255, 65, 0.2);
  --glow-green: 0 0 20px rgba(0, 255, 65, 0.5);
  --glow-cyan: 0 0 20px rgba(0, 212, 255, 0.5);
  --transition: all 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--dark-bg);
  color: var(--light-text);
  line-height: 1.6;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(0, 255, 65, 0.03) 2px,
      rgba(0, 255, 65, 0.03) 4px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 2px,
      rgba(0, 255, 65, 0.03) 2px,
      rgba(0, 255, 65, 0.03) 4px
    );
  z-index: -1;
  pointer-events: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.age-notice {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: var(--dark-bg);
  text-align: center;
  padding: 0.75rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  font-family: 'IBM Plex Mono', monospace;
}

.site-header {
  background: rgba(10, 14, 39, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.navbar-brand {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--light-text) !important;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
  letter-spacing: 0.05em;
}

.navbar-brand i {
  color: var(--primary-color);
  font-size: 1.5rem;
}

.brand-text {
  color: var(--primary-color);
}

.nav-link {
  color: var(--gray-text) !important;
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  transition: var(--transition);
  position: relative;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
}

.nav-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transform: translateX(-50%);
  transition: var(--transition);
}

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

.nav-link:hover::before,
.nav-link.active::before {
  width: 80%;
}

.btn-nav-login {
  background: rgba(0, 255, 65, 0.1);
  border: 1px solid var(--border-color);
  border-radius: 0.25rem;
  margin-left: 0.5rem;
}

.btn-nav-login:hover {
  background: rgba(0, 255, 65, 0.2);
  box-shadow: var(--glow-green);
}

.btn-nav-register {
  background: var(--primary-color);
  color: var(--dark-bg) !important;
  border-radius: 0.25rem;
  margin-left: 0.5rem;
  font-weight: 700;
  box-shadow: var(--glow-green);
}

.btn-nav-register:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 255, 65, 0.7);
}

.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.matrix-rain {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    linear-gradient(180deg, transparent 0%, rgba(0, 255, 65, 0.03) 100%);
  z-index: 0;
  animation: scanline 8s linear infinite;
}

@keyframes scanline {
  0% { background-position: 0 0; }
  100% { background-position: 0 100%; }
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  background: rgba(0, 255, 65, 0.1);
  border: 1px solid var(--border-color);
  color: var(--primary-color);
  padding: 0.5rem 1.25rem;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  font-family: 'IBM Plex Mono', monospace;
}

.hero-title {
  font-size: 4.5rem;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 1.5rem;
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.1em;
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: glow 2s ease-in-out infinite alternate;
}

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

@keyframes glow {
  from { filter: brightness(1); }
  to { filter: brightness(1.2); }
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--gray-text);
  max-width: 540px;
  line-height: 1.8;
}

.btn-primary {
  background: var(--primary-color);
  border: none;
  color: var(--dark-bg);
  padding: 1rem 2rem;
  font-weight: 700;
  border-radius: 0.25rem;
  transition: var(--transition);
  box-shadow: var(--glow-green);
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.05em;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 30px rgba(0, 255, 65, 0.8);
  background: var(--primary-color);
  color: var(--dark-bg);
}

.btn-outline-custom {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  padding: 1rem 2rem;
  font-weight: 700;
  border-radius: 0.25rem;
  transition: var(--transition);
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.05em;
}

.btn-outline-custom:hover {
  background: rgba(0, 255, 65, 0.1);
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-3px);
  box-shadow: var(--glow-green);
}

.hero-stats {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 2rem;
  border-radius: 0.25rem;
}

.stat-box {
  text-align: center;
  padding: 1rem;
  background: rgba(0, 255, 65, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 0.25rem;
}

.stat-number {
  font-size: 2rem;
  font-weight: 900;
  font-family: 'IBM Plex Mono', monospace;
  color: var(--primary-color);
  line-height: 1;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--gray-text);
  margin-top: 0.5rem;
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.1em;
}

.hero-visual {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.terminal-window {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), var(--glow-green);
  max-width: 600px;
  width: 100%;
}

.terminal-header {
  background: rgba(0, 255, 65, 0.1);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary-color);
  box-shadow: 0 0 10px var(--primary-color);
}

.terminal-title {
  margin-left: auto;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.875rem;
  color: var(--primary-color);
  letter-spacing: 0.05em;
}

.terminal-body {
  padding: 2rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.875rem;
  line-height: 2;
}

.terminal-line {
  color: var(--gray-text);
}

.prompt {
  color: var(--primary-color);
  margin-right: 0.5rem;
}

.text-success {
  color: var(--primary-color);
}

.terminal-cursor {
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.tracker-section,
.system-section,
.data-section {
  background: var(--darker-bg);
}

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

.section-title {
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: 1rem;
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.1em;
}

.section-title i {
  color: var(--primary-color);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--gray-text);
}

.tracker-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 2rem;
  border-radius: 0.25rem;
  transition: var(--transition);
  height: 100%;
  text-align: center;
}

.tracker-card:hover {
  transform: translateY(-10px);
  border-color: var(--primary-color);
  box-shadow: var(--glow-green);
}

.tracker-icon {
  width: 80px;
  height: 80px;
  background: rgba(0, 255, 65, 0.1);
  border: 2px solid var(--border-color);
  border-radius: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2rem;
  color: var(--primary-color);
  transition: var(--transition);
}

.tracker-card:hover .tracker-icon {
  background: rgba(0, 255, 65, 0.2);
  transform: scale(1.1);
}

.tracker-card h3 {
  font-size: 1.125rem;
  margin-bottom: 1rem;
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.05em;
}

.tracker-card p {
  color: var(--gray-text);
  margin-bottom: 1.5rem;
  font-size: 0.9375rem;
}

.tracker-value {
  color: var(--primary-color);
  font-weight: 700;
  font-size: 0.875rem;
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.1em;
}

.system-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 400px;
}

.system-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  max-width: 500px;
}

.grid-item {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 2rem;
  border-radius: 0.25rem;
  text-align: center;
  transition: var(--transition);
  animation: fadeInUp 0.6s ease forwards;
  opacity: 0;
}

.grid-item:hover {
  transform: scale(1.1);
  border-color: var(--primary-color);
  box-shadow: var(--glow-green);
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
  from {
    opacity: 0;
    transform: translateY(20px);
  }
}

.grid-item i {
  font-size: 2rem;
  color: var(--primary-color);
  display: block;
  margin-bottom: 0.75rem;
}

.grid-item span {
  font-size: 0.75rem;
  font-weight: 700;
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.1em;
  color: var(--gray-text);
}

.system-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.system-item {
  display: flex;
  gap: 1.5rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: 0.25rem;
  transition: var(--transition);
}

.system-item:hover {
  border-color: var(--primary-color);
  box-shadow: var(--glow-green);
  transform: translateX(10px);
}

.system-item-icon {
  width: 60px;
  height: 60px;
  min-width: 60px;
  background: rgba(0, 255, 65, 0.1);
  border: 1px solid var(--border-color);
  border-radius: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary-color);
}

.system-item-content h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.05em;
}

.system-item-content p {
  color: var(--gray-text);
  margin-bottom: 0;
  font-size: 0.9375rem;
}

.data-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 0.25rem;
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
}

.data-card:hover {
  border-color: var(--primary-color);
  box-shadow: var(--glow-green);
  transform: translateY(-10px);
}

.data-card-header {
  background: rgba(0, 255, 65, 0.1);
  padding: 1rem 1.5rem;
  font-weight: 700;
  font-size: 0.875rem;
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.1em;
  color: var(--primary-color);
  border-bottom: 1px solid var(--border-color);
}

.data-card-body {
  padding: 1.5rem;
}

.data-metric {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(0, 255, 65, 0.1);
}

.data-metric:last-child {
  border-bottom: none;
}

.metric-label {
  font-size: 0.875rem;
  color: var(--gray-text);
  font-family: 'IBM Plex Mono', monospace;
}

.metric-value {
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--light-text);
  font-family: 'IBM Plex Mono', monospace;
}

.cta-section {
  background: var(--darker-bg);
}

.cta-box {
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  padding: 3rem;
  border-radius: 0.25rem;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(0, 255, 65, 0.03) 10px,
    rgba(0, 255, 65, 0.03) 20px
  );
  animation: scan 20s linear infinite;
}

@keyframes scan {
  from { transform: translateX(0); }
  to { transform: translateX(50%); }
}

.cta-title {
  font-size: 2rem;
  font-weight: 900;
  position: relative;
  z-index: 1;
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.05em;
}

.cta-text {
  font-size: 1.125rem;
  color: var(--gray-text);
  position: relative;
  z-index: 1;
}

.btn-cta {
  background: var(--primary-color);
  border: none;
  color: var(--dark-bg);
  padding: 1rem 2.5rem;
  font-weight: 700;
  border-radius: 0.25rem;
  transition: var(--transition);
  box-shadow: var(--glow-green);
  position: relative;
  z-index: 1;
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.05em;
}

.btn-cta:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 0 40px rgba(0, 255, 65, 0.8);
  color: var(--dark-bg);
}

.site-footer {
  background: var(--darker-bg);
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
}

.footer-logo {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}

.site-footer p {
  color: var(--gray-text);
  font-size: 0.9375rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

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

.site-footer a:hover {
  color: var(--secondary-color);
}

.footer-heading {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--light-text);
  margin-bottom: 1.5rem;
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--gray-text);
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.9375rem;
}

.footer-links a:hover {
  color: var(--primary-color);
  padding-left: 0.5rem;
}

.footer-img {
  max-width: 150px;
  height: auto;
  border-radius: 0.25rem;
  transition: var(--transition);
  opacity: 0.8;
  border: 1px solid var(--border-color);
}

.footer-img:hover {
  opacity: 1;
  transform: translateY(-3px);
  box-shadow: var(--glow-green);
}

.footer-img-invert {
  filter: brightness(0.9);
  background: white;
  padding: 0.5rem;
  border-radius: 0.5rem;
}

.footer-bottom {
  color: var(--gray-text);
  font-size: 0.875rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  margin-top: 3rem;
  font-family: 'IBM Plex Mono', monospace;
}

@media (max-width: 991px) {
  .hero-title {
    font-size: 3rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .hero-visual {
    margin-top: 3rem;
  }
  
  .cta-title {
    font-size: 1.5rem;
  }
  
  .btn-cta {
    width: 100%;
    margin-top: 1.5rem;
  }
  
  .system-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .terminal-body {
    font-size: 0.75rem;
  }
  
  .system-grid {
    grid-template-columns: 1fr;
  }
}