:root {
  --bg: #0d1117;
  --bg-card: #161b22;
  --bg-code: #1c2128;
  --border: #30363d;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --accent: #58a6ff;
  --accent-dim: #1f6feb;
  --green: #3fb950;
  --yellow: #d29922;
  --purple: #bc8cff;
  --red: #f85149;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* NAV */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo .prompt {
  color: var(--green);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.875rem;
  transition: color 0.15s;
}

.nav-links a:hover {
  color: var(--text);
  text-decoration: none;
}

.nav-links .btn-github {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.35rem 0.85rem;
  border-radius: 6px;
  font-size: 0.875rem;
  transition: border-color 0.15s, background 0.15s;
}

.nav-links .btn-github:hover {
  border-color: var(--accent);
  background: var(--bg-code);
  text-decoration: none;
}

/* HERO */
.hero {
  padding: 6rem 2rem 5rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--green);
  background: rgba(63, 185, 80, 0.1);
  border: 1px solid rgba(63, 185, 80, 0.3);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1.25rem;
}

.hero h1 .highlight {
  color: var(--accent);
}

.hero p {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-dim);
  color: #fff;
  border: 1px solid transparent;
  padding: 0.6rem 1.4rem;
  border-radius: 6px;
  font-size: 0.9375rem;
  font-weight: 600;
  transition: background 0.15s, transform 0.1s;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--accent);
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 0.6rem 1.4rem;
  border-radius: 6px;
  font-size: 0.9375rem;
  font-weight: 600;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--accent);
  background: var(--bg-card);
  text-decoration: none;
  transform: translateY(-1px);
}

/* TERMINAL DEMO */
.terminal-wrapper {
  max-width: 720px;
  margin: 4rem auto 0;
  padding: 0 2rem;
}

.terminal {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,0.5);
}

.terminal-bar {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 0.7rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-dot.red   { background: #ff5f57; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #28c940; }

.terminal-title {
  flex: 1;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.terminal-body {
  padding: 1.25rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.8;
}

.t-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.t-prompt  { color: var(--green); }
.t-cmd     { color: var(--text); }
.t-arg     { color: var(--accent); }
.t-out     { color: var(--text-muted); }
.t-comment { color: #484f58; }
.t-ok      { color: var(--green); }
.t-warn    { color: var(--yellow); }
.t-purple  { color: var(--purple); }
.t-str     { color: var(--yellow); }
.t-cursor  {
  display: inline-block;
  width: 9px;
  height: 1.1em;
  background: var(--accent);
  vertical-align: text-bottom;
  animation: blink 1.1s step-end infinite;
  margin-left: 2px;
}

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

/* SECTIONS */
section {
  padding: 5rem 2rem;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.section-desc {
  color: var(--text-muted);
  max-width: 540px;
  margin-bottom: 3rem;
}

/* FEATURES GRID */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  transition: border-color 0.15s, transform 0.15s;
}

.feature-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* INSTALL */
#install {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.install-tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: 0.5rem 1rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s, border-color 0.15s;
}

.tab-btn.active {
  color: var(--text);
  border-bottom-color: var(--accent);
}

.tab-btn:hover:not(.active) {
  color: var(--text);
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

.code-block {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.copy-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}

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

.code-block pre {
  padding: 1.25rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.75;
  overflow-x: auto;
  color: var(--text);
}

.code-block pre .c { color: #484f58; }
.code-block pre .kw { color: var(--purple); }
.code-block pre .s { color: var(--green); }
.code-block pre .p { color: var(--accent); }

/* PLUGIN EXAMPLE */
.plugin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 700px) {
  .plugin-grid {
    grid-template-columns: 1fr;
  }
}

.plugin-desc {
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

.plugin-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.plugin-steps li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.step-num {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--bg-code);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  margin-top: 1px;
}

/* PLUGIN AVAILABLE */
.plugin-available {
  margin-top: 3rem;
}

.plugin-cmds {
  margin-top: 2.5rem;
}

.subsection-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.plugin-avail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.plugin-avail-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s;
}

.plugin-avail-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-2px);
  text-decoration: none;
}

.plugin-avail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.plugin-avail-name {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
}

.plugin-avail-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  background: rgba(88, 166, 255, 0.1);
  border: 1px solid rgba(88, 166, 255, 0.25);
  padding: 0.15rem 0.5rem;
  border-radius: 100px;
}

.plugin-avail-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.plugin-repo-link {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* PLUGIN COMMANDS TABLE */
.cmd-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.cmd-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.cmd-table th {
  text-align: left;
  padding: 0.6rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}

.cmd-table td {
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  vertical-align: top;
}

.cmd-table tr:last-child td {
  border-bottom: none;
}

.cmd-table td:first-child {
  white-space: nowrap;
}

.cmd-table td code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text);
}

/* FOOTER */
footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 2rem;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-logo {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-muted);
}

.footer-logo strong {
  color: var(--text);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color 0.15s;
}

.footer-links a:hover {
  color: var(--text);
  text-decoration: none;
}

.footer-copy {
  width: 100%;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* RESPONSIVE */
@media (max-width: 600px) {
  nav {
    padding: 0 1rem;
  }

  .nav-links li:not(:last-child) {
    display: none;
  }

  .hero {
    padding: 4rem 1rem 3rem;
  }

  .terminal-wrapper {
    padding: 0 1rem;
  }

  section {
    padding: 3.5rem 1rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}