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

:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #0d0d0d;
  --bg-tertiary: #111111;
  --text-primary: #33ff33;
  --text-secondary: #22aa22;
  --text-dim: #115511;
  --text-white: #ccffcc;
  --accent: #00ff00;
  --accent-dim: #008800;
  --amber: #ffaa00;
  --amber-dim: #885500;
  --red: #ff3333;
  --cyan: #00ffff;
  --magenta: #ff00ff;
  --border: #1a3a1a;
  --border-hover: #2a5a2a;
  --font-mono: 'VT323', 'IBM Plex Mono', 'Courier New', monospace;
  --glow: 0 0 10px rgba(0, 255, 0, 0.3);
  --glow-strong: 0 0 20px rgba(0, 255, 0, 0.5);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-mono);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

.crt-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 0%, rgba(0, 0, 0, 0.3) 100%);
  z-index: 9999;
}

.scanlines {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  background: repeating-linear-gradient(0deg,
      transparent,
      transparent 2px,
      rgba(0, 0, 0, 0.1) 2px,
      rgba(0, 0, 0, 0.1) 4px);
  z-index: 9998;
  animation: scanline-flicker 0.1s infinite;
}

@keyframes scanline-flicker {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.98;
  }
}

::selection {
  background: var(--accent);
  color: var(--bg-primary);
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 2rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-prompt {
  color: var(--accent);
  font-size: 1.25rem;
  text-shadow: var(--glow);
}

.nav-title {
  font-size: 1.125rem;
  color: var(--text-primary);
  text-shadow: var(--glow);
  letter-spacing: 0.05em;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-time {
  font-size: 1rem;
  color: var(--text-secondary);
  text-shadow: var(--glow);
}

.nav-links {
  display: flex;
  gap: 1rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s, text-shadow 0.2s;
}

.nav-link:hover {
  color: var(--text-primary);
  text-shadow: var(--glow);
}

main {
  max-width: 95%;
  margin: 0 auto;
  padding: 5rem 2rem 2rem;
}

.hero {
  text-align: center;
  padding: 3rem 0;
}

.ascii-art {
  font-family: var(--font-mono);
  font-size: clamp(0.5rem, 1.2vw, 1rem);
  line-height: 1.1;
  color: var(--text-primary);
  text-shadow: 0 0 2px rgba(0, 255, 0, 0.5);
  margin-bottom: 2rem;
  white-space: pre;
  display: inline-block;
  text-align: left;
}

.terminal-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  margin: 1.5rem 0;
}

.prompt {
  color: var(--accent);
  text-shadow: var(--glow-strong);
}

.command {
  color: var(--text-white);
}

.typing {
  color: var(--text-white);
}

.cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
  text-shadow: var(--glow);
}

@keyframes blink {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0;
  }
}

.hero-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 1rem auto;
}

.highlight {
  color: var(--accent);
  text-shadow: var(--glow);
}

.install-section {
  margin: 3rem 0;
}

.terminal-window {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  max-width: 100%;
  margin: 0 auto;
  position: relative;
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1rem;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal-dot.red {
  background: var(--red);
}

.terminal-dot.yellow {
  background: var(--amber);
}

.terminal-dot.green {
  background: var(--accent);
}

.terminal-title {
  margin: 0 auto;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.terminal-body {
  padding: 1rem;
  font-size: 0.95rem;
}

.terminal-body .terminal-line {
  justify-content: flex-start;
  margin: 0.5rem 0;
  font-size: 1rem;
}

.terminal-output {
  margin-top: 1rem;
  padding-left: 0.5rem;
}

.terminal-output.success .output-line {
  display: block;
  color: var(--text-secondary);
  margin: 0.25rem 0;
}

.terminal-output.success .output-line.highlight {
  color: var(--accent);
  text-shadow: var(--glow);
}

.copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 0.3rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
  z-index: 10;
}

.copy-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.copy-feedback {
  display: none;
  color: var(--accent);
}

.copy-btn.copied .copy-icon {
  display: none;
}

.copy-btn.copied .copy-feedback {
  display: inline;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

.section-prompt {
  color: var(--accent);
  text-shadow: var(--glow);
}

.section-title {
  color: var(--text-white);
}

.skills-section {
  margin: 4rem 0;
}

.category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.tab {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 0.4rem 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
}

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

.tab.active {
  border-color: var(--accent);
  color: var(--accent);
  text-shadow: var(--glow);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.skill-card {
  background: var(--bg-secondary);
  padding: 1.25rem;
  text-decoration: none;
  color: inherit;
  transition: background 0.2s;
  display: block;
}

.skill-card:hover {
  background: var(--bg-tertiary);
}

.skill-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.skill-category {
  font-size: 0.7rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.skill-name {
  font-size: 1.125rem;
  color: var(--accent);
  text-shadow: var(--glow);
  margin-bottom: 0.25rem;
}

.skill-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.skill-arrow {
  display: none;
  color: var(--accent);
}

.agents-section {
  margin: 4rem 0;
}

.agents-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.agent-pill {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 0.4rem 0.75rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: all 0.2s;
}

.agent-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.usage-section {
  margin: 4rem 0;
}

.usage-examples {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.usage-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 1rem;
}

.usage-header {
  font-size: 0.8rem;
  color: var(--amber);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.usage-card code {
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: block;
  word-break: break-all;
}

.structure-section {
  margin: 4rem 0;
}

.tree-view {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 1.25rem;
  overflow-x: auto;
}

.tree-view pre {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.tree-view .dir {
  color: var(--accent);
}

.tree-view .file {
  color: var(--text-white);
}

.contributing-section {
  margin: 4rem 0;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.step {
  background: var(--bg-secondary);
  padding: 1.5rem;
}

.step-number {
  color: var(--accent);
  font-size: 0.75rem;
  margin-bottom: 0.5rem;
  text-shadow: var(--glow);
}

.step-text {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.step-text code {
  color: var(--amber);
  background: rgba(255, 170, 0, 0.1);
  padding: 0.1em 0.3em;
}

/* Tag-based install section */
.tag-install-section {
  margin: 4rem 0;
}

.tag-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.tag-card {
  background: var(--bg-secondary);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.tag-card:hover {
  background: var(--bg-tertiary);
}

.tag-label {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.tag-card--cyan .tag-label { color: var(--cyan); text-shadow: 0 0 8px rgba(0,255,255,0.4); }
.tag-card--amber .tag-label { color: var(--amber); text-shadow: 0 0 8px rgba(255,170,0,0.4); }
.tag-card--magenta .tag-label { color: var(--magenta); text-shadow: 0 0 8px rgba(255,0,255,0.4); }
.tag-card--green .tag-label { color: var(--accent); text-shadow: var(--glow); }
.tag-card--red .tag-label { color: var(--red); text-shadow: 0 0 8px rgba(255,51,51,0.4); }

.tag-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.tag-cmd-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.25rem;
  flex-wrap: wrap;
}

.tag-cmd {
  font-size: 0.75rem;
  color: var(--text-dim);
  word-break: break-all;
  flex: 1;
}

.tag-copy-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 0.2rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
  flex-shrink: 0;
}

.tag-copy-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Tree comment color */
.tree-view .comment {
  color: var(--text-dim);
}

.footer {
  border-top: 1px solid var(--border);
  padding: 2rem;
  text-align: center;
  margin-top: 4rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1.25rem;
  transition: color 0.2s;
}

.footer-link:hover {
  color: var(--accent);
  text-shadow: var(--glow);
}

.footer-copy {
  font-size: 1rem;
  color: var(--text-dim);
}

@media (max-width: 768px) {
  .nav {
    padding: 0.75rem 1rem;
  }

  main {
    padding: 4rem 1rem 2rem;
  }

  .ascii-art {
    font-size: 0.35rem;
  }

  .terminal-line {
    font-size: 1rem;
  }

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

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

  .category-tabs {
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .scanlines {
    animation: none;
  }

  .cursor {
    animation: none;
  }
}