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

:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5ff;
  --bg-terminal: #1e1b4b;
  --accent: #6366f1;
  --accent-dark: #4f46e5;
  --accent-light: #a5b4fc;
  --text-primary: #1e1b4b;
  --text-secondary: #64748b;
  --text-muted: #6b7280;
  --text-terminal: #e2e8f0;
  --prompt: #a5b4fc;
  --border-color: #e2e8f0;
  --font-mono: 'JetBrains Mono', monospace;
  --dot-color: rgba(30, 27, 75, 0.07);
  --dot-size: 1.25px;
  --dot-spacing: 22px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-mono);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  background-image: radial-gradient(circle, var(--dot-color) var(--dot-size), transparent calc(var(--dot-size) + 0.5px));
  background-size: var(--dot-spacing) var(--dot-spacing);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

/* -- Hero -- */

.hero {
  padding: 80px 0 32px;
  text-align: center;
  background: transparent;
}

.hero h1 {
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  font-weight: 700;
  margin-bottom: 16px;
  min-height: 1.4em;
}

.typing-cursor::after {
  content: '|';
  animation: blink 1s step-end infinite;
  color: var(--accent);
}

@keyframes blink {
  50% { opacity: 0; }
}

.hero-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 32px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-decoration: none;
  border-radius: 6px;
  transition: transform 0.15s, box-shadow 0.15s;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}

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

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

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

/* -- Sections -- */

section {
  padding: 64px 0;
}

.section-alt {
  background-color: #e0e7ff57;
  background-image: none;
}

.section-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 40px;
}

/* -- Features / agents -- */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 24px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.12);
}

.feature-icon {
  font-size: 1.25rem;
  color: var(--accent);
  margin-bottom: 12px;
}

.feature-card h3 {
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.agent-status {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--accent);
  color: var(--accent-dark);
}

.agent-status.best-effort {
  border-color: #eab308;
  color: #a16207;
}

/* -- Terminal windows -- */

.terminal-window {
  background: var(--bg-terminal);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(30, 27, 75, 0.18);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #2d2a5e;
}

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

.dot.red { background: #ef4444; }
.dot.yellow { background: #eab308; }
.dot.green { background: #22c55e; }

.terminal-title {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-left: 8px;
}

.terminal-body {
  padding: 16px 20px;
}

.terminal-body pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--text-terminal);
  overflow-x: auto;
}

.terminal-body a {
  color: var(--accent-light);
}

.terminal-body .prompt {
  color: var(--prompt);
  user-select: none;
}

.terminal-body .flag {
  color: var(--accent-light);
}

.terminal-body .comment {
  color: var(--text-muted);
}

/* -- Install -- */

.install-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.install-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-weight: 700;
}

.install-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 24px;
  text-align: center;
}

/* -- Footer -- */

footer {
  background: var(--bg-terminal);
  color: var(--text-muted);
  padding: 40px 0;
  font-size: 0.8rem;
  line-height: 2;
}

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

footer a:hover {
  text-decoration: underline;
}

.footer-columns {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  text-align: left;
}

.footer-logo {
  color: var(--accent);
  font-size: clamp(0.35rem, 1.8vw, 0.65rem);
  line-height: 1.2;
  margin-bottom: 12px;
  display: inline-block;
  text-align: left;
}

.footer-col-title {
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  color: var(--text-terminal);
}

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

.footer-columns ul li {
  margin-bottom: 6px;
}

.footer-slogan {
  color: var(--text-terminal);
  font-weight: 700;
}

footer hr {
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  margin: 32px 0 24px;
}

.footer-credit {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-terminal);
}

.footer-heart {
  color: #ea580c;
}

.back-to-top-wrap {
  text-align: center;
  margin-top: 12px;
}

.back-to-top {
  display: inline-block;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.75rem;
}

.back-to-top:hover {
  color: var(--accent-light);
}

/* -- Animations -- */

.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* -- Focus styles -- */

a:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* -- Skip nav -- */

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  z-index: 100;
  padding: 8px 16px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-size: 0.8rem;
}

.skip-link:focus {
  top: 0;
}

/* -- TUI dashboard replica -- */

.tui-section {
  padding-top: 16px;
}

.tui {
  --tui-bg: #1d2029;
  --tui-border: #3a4150;
  --tui-coral: #e0815c;
  --tui-purple: #a78bfa;
  --tui-gold: #e0b341;
  --tui-green: #39d353;
  --tui-white: #e6e8ec;
  --tui-muted: #8b91a0;
  --tui-dim: #5b616e;
  --tui-link: #6ea8fe;
  --hm-cell: 13px;
  --hm-gap: 3px;
  background: var(--tui-bg);
  border-radius: 10px;
  padding: 28px 26px 22px;
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--tui-white);
  box-shadow: 0 8px 28px rgba(15, 17, 24, 0.35);
  overflow-x: auto;
}

.tui-panels {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 22px;
  align-items: start;
}

.tui-panel {
  position: relative;
  border: 1px solid var(--tui-border);
  border-radius: 3px;
  padding: 22px 18px 16px;
}

.tui-panel-title {
  position: absolute;
  top: 0;
  left: 14px;
  transform: translateY(-50%);
  background: var(--tui-bg);
  padding: 0 8px;
  color: var(--tui-white);
  white-space: nowrap;
}

.tui-range {
  color: var(--tui-dim);
  margin-bottom: 14px;
}

/* Heatmap */
.hm-months {
  display: flex;
  gap: var(--hm-gap);
  padding-left: calc(3.2em + var(--hm-gap));
  color: var(--tui-muted);
  margin-bottom: 6px;
}

.hm-months span:first-child {
  width: calc(4 * (var(--hm-cell) + var(--hm-gap)));
}

.hm-row {
  display: flex;
  align-items: center;
  gap: var(--hm-gap);
  margin-bottom: var(--hm-gap);
}

.hm-day {
  width: 3.2em;
  color: var(--tui-muted);
  flex: none;
}

.hm-cell {
  width: var(--hm-cell);
  height: var(--hm-cell);
  border-radius: 2px;
  flex: none;
}

.hm-0 { background: #2d333b; }
.hm-1 { background: #0e4429; }
.hm-2 { background: #006d32; }
.hm-3 { background: #26a641; }
.hm-4 { background: #39d353; }

.hm-legend {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  color: var(--tui-muted);
}

.hm-legend .hm-cell {
  margin-left: 6px;
}

.hm-legend .hm-cell:first-child {
  margin-left: 0;
}

/* Per-agent bars */
.tui-agent {
  display: grid;
  grid-template-columns: 5.5em 1fr 2.4em;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.tui-agent:last-child {
  margin-bottom: 0;
}

.tui-agent-name { color: var(--tui-muted); }

.tui-bar {
  height: 15px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 2px;
  overflow: hidden;
}

.tui-fill {
  display: block;
  height: 100%;
  border-radius: 2px;
}

.tui-fill.claude   { width: 100%; background: var(--tui-coral); }
.tui-fill.desktop  { width: 8%;   background: var(--tui-purple); }
.tui-fill.opencode { width: 4%;   background: var(--tui-gold); }

.tui-agent-val { text-align: right; }
.val-coral  { color: var(--tui-coral); }
.val-purple { color: var(--tui-purple); }
.val-gold   { color: var(--tui-gold); }
.val-zero   { color: var(--tui-dim); }

/* Key hints */
.tui-keys {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  margin-top: 26px;
  color: var(--tui-white);
}

.tui-keys .k-label { color: var(--tui-muted); }
.tui-keys .k-all { text-decoration: underline; }
.tui-keys .k-desktop { color: var(--tui-purple); }
.tui-keys .k-codex { color: var(--tui-green); }
.tui-keys .k-opencode { color: var(--tui-gold); }
.tui-keys .k-sep { margin-left: 14px; }

.tui-link {
  display: inline-block;
  margin-top: 18px;
  color: var(--tui-link);
  text-decoration: underline;
}

/* -- Responsive -- */

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

  .hero {
    padding: 48px 0 40px;
  }

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

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

  section {
    padding: 48px 0;
  }

  .footer-columns {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-columns .footer-logo {
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .typing-cursor::after { animation: none; opacity: 1; }
  .animate-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
  }
}