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

:root {
  --bg-primary: #0a0a0c;
  --bg-secondary: #121216;
  --bg-tertiary: #18181b;
  --accent-green: #a3e635;
  --accent-green-low: rgba(163, 230, 53, 0.1);
  --accent-green-mid: rgba(163, 230, 53, 0.3);
  --text-primary: #f4f4f5;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --border-color: #27272a;
  --border-glow: rgba(163, 230, 53, 0.2);
  --font-sans: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  background-image:
    linear-gradient(var(--border-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
  background-size: 50px 50px;
  background-position: center center;
  animation: backgroundMove 60s linear infinite;
}

@keyframes backgroundMove {
  from {
    background-position: 0 0;
  }

  to {
    background-position: 1000px 1000px;
  }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-green-mid);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.mono {
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}

.text-accent {
  color: var(--accent-green);
}

.text-secondary {
  color: var(--text-secondary);
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 6rem 0;
  border-bottom: 1px solid var(--border-color);
}

/* Components */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  border-radius: 4px;
  transition: var(--transition-base);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-primary {
  background-color: var(--accent-green);
  color: var(--bg-primary);
  border: 1px solid var(--accent-green);
}

.btn-primary:hover {
  background-color: #8ec62e;
  color: var(--bg-primary);
  box-shadow:
    0 0 20px var(--accent-green-mid),
    0 0 40px rgba(163, 230, 53, 0.15);
  transform: translateY(-2px);
}

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

.btn-outline:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
  box-shadow: 0 0 15px rgba(163, 230, 53, 0.15);
  transform: translateY(-2px);
}

.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 2rem;
  border-radius: 4px;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card:hover {
  border-color: var(--accent-green-mid);
  background-color: var(--bg-tertiary);
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.4);
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-green);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-base);
}

.card:hover::before {
  transform: scaleX(1);
}

/* Header */
header {
  height: 80px;
  display: flex;
  align-items: center;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(10, 10, 12, 0.8);
  backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
}

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

.logo img {
  height: 50px;
  padding-right: 30px;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition-fast);
}

.nav-links a:hover {
  color: var(--accent-green);
}

/* Hero Section */
.hero {
  padding: 10rem 0 6rem;
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 150px;
  background: linear-gradient(to bottom, transparent, var(--bg-primary));
  pointer-events: none;
}

.hero-content {
  max-width: 900px;
  animation: fadeInUp 1s ease-out;
  position: relative;
  z-index: 10;
}

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

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

.hero h1 {
  font-size: 5rem;
  margin: 1.5rem 0;
  line-height: 1;
  font-weight: 800;
  background: linear-gradient(to right, #fff, var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero .subtext {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  max-width: 600px;
}

.cta-group {
  display: flex;
  gap: 1.5rem;
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

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

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

/* Section Specifics */
.section-title {
  margin-bottom: 4rem;
}

.section-title span {
  display: block;
  margin-bottom: 1rem;
}

.section-title h2 {
  font-size: 2.5rem;
}

.feature-tag {
  background: var(--accent-green-low);
  color: var(--accent-green);
  padding: 0.25rem 0.75rem;
  border-radius: 2px;
  font-size: 0.75rem;
  font-weight: 600;
  display: inline-block;
  margin-bottom: 1rem;
  border: 1px solid var(--accent-green-mid);
}

/* Module Cards */
.module-card {
    text-align: center;
    padding: 1.75rem 1.25rem;
}

.module-icon {
    font-size: 1.8rem;
    color: var(--accent-green);
    margin-bottom: 0.75rem;
    opacity: 0.7;
}

.module-card h3 {
    font-size: 1rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* OnionProbe Status Link */
.onionprobe-status-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.onionprobe-status-link:hover .card {
  border-color: var(--accent-green);
  box-shadow: 0 0 25px rgba(163, 230, 53, 0.2);
}

/* Responsive */
@media (max-width: 1024px) {
  .grid-4,
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero h1 {
    font-size: 3.5rem;
  }
}

@media (max-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .nav-links {
    display: none;
  }

  .cta-group {
    flex-direction: column;
  }

  section {
    padding: 4rem 0;
  }
}