/* ─────────────────────────────────────────────────
   DEFINED — style.css
   Dark neutral theme, green accents only
───────────────────────────────────────────────── */

/* ── Tokens ── */
:root {
  /* Backgrounds — neutral dark, no green tint */
  --bg:           #09090f;
  --bg-card:      #0f0f17;
  --bg-card-alt:  #13131c;
  --bg-code:      #0c0c14;

  /* Borders — neutral white at low opacity */
  --border:       rgba(255, 255, 255, 0.07);
  --border-hover: rgba(255, 255, 255, 0.18);

  /* Green — accent ONLY */
  --green:        #22c55e;
  --green-dim:    rgba(34, 197, 94, 0.85);
  --green-glow:   rgba(34, 197, 94, 0.15);
  --green-deep:   rgba(34, 197, 94, 0.08);

  /* Text — neutral */
  --text-primary:   #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted:     #475569;

  --font-sans: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─────────────────────────────────────────────────
   PARTICLE CANVAS BACKGROUND
───────────────────────────────────────────────── */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  width: 100%;
  height: 100%;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* All content sits above the canvas */
.navbar, section, footer { position: relative; z-index: 2; }
code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--green-dim);
  background: rgba(34, 197, 94, 0.08);
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid rgba(34, 197, 94, 0.12);
}

/* ── Container ── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ─────────────────────────────────────────────────
   BUTTONS
───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  letter-spacing: 0.01em;
  white-space: nowrap;
  border: none;
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.06);
  opacity: 0;
  transition: opacity var(--transition);
}
.btn:hover::after { opacity: 1; }

.btn-primary {
  background: var(--green);
  color: #071a0f;
  padding: 11px 22px;
  font-size: 0.9rem;
}
.btn-primary:hover {
  background: #16a34a;
  transform: translateY(-1px);
  box-shadow: 0 8px 28px rgba(34, 197, 94, 0.3);
}
.btn-outline {
  background: transparent;
  color: var(--green);
  border: 1px solid var(--border);
  padding: 8px 18px;
  font-size: 0.875rem;
}
.btn-outline:hover {
  border-color: var(--green);
  background: var(--green-deep);
}
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 11px 20px;
  font-size: 0.9rem;
}
.btn-ghost:hover { color: var(--text-primary); }
.btn-lg { padding: 14px 28px; font-size: 0.975rem; }
.btn-xl { padding: 16px 36px; font-size: 1.05rem; }
.btn-sm { padding: 7px 14px; font-size: 0.83rem; }
.icon { width: 17px; height: 17px; flex-shrink: 0; }

/* ─────────────────────────────────────────────────
   NAVBAR
───────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 28px;
  height: 62px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: all 0.4s ease;
}
.navbar.scrolled {
  background: rgba(9, 9, 15, 0.92);
  border-bottom-color: var(--border);
  backdrop-filter: blur(20px);
}
.nav-inner {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color var(--transition);
}
.nav-logo:hover { color: var(--green); }
.logo-bracket { color: var(--green); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition);
}
.nav-link:hover { color: var(--text-primary); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: all var(--transition);
}

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 62px;
  left: 0; right: 0;
  background: rgba(9,9,15,0.97);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
  z-index: 99;
  flex-direction: column;
  padding: 16px 0;
}
.mobile-menu.open { display: flex; }
.mobile-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 12px 28px;
  transition: all var(--transition);
}
.mobile-link:hover { color: var(--text-primary); background: var(--green-deep); }
.mobile-link-accent { color: var(--green); font-weight: 500; }

/* ─────────────────────────────────────────────────
   HERO
───────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding: 100px 28px 80px;
}
.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--green-deep);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 0.8rem;
  color: var(--green-dim);
  font-weight: 500;
  letter-spacing: 0.02em;
  animation: fadeSlideDown 0.7s ease both;
}
.badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero-title {
  font-size: clamp(4rem, 12vw, 8.5rem);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.04em;
  animation: fadeSlideUp 0.7s 0.1s ease both;
}
.word-defined {
  background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 40%, var(--green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-dot { color: var(--green); }
.hero-sub {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.65;
  animation: fadeSlideUp 0.7s 0.2s ease both;
}
.hero-sub strong { color: var(--green); font-weight: 600; }
.hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeSlideUp 0.7s 0.3s ease both;
}

/* Dependency badge */
.dep-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #0e0e18;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 18px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  animation: fadeSlideUp 0.7s 0.4s ease both;
  flex-wrap: wrap;
  justify-content: center;
}
.dep-label { color: var(--text-muted); }
.dep-value { color: var(--text-secondary); }
.dep-version { color: var(--green); }

.hero-scroll-hint {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
}
.scroll-line {
  width: 1px; height: 52px;
  background: linear-gradient(to bottom, transparent, var(--green-dim));
  margin: 0 auto;
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(0.6); }
}

/* ─────────────────────────────────────────────────
   SECTION SHARED
───────────────────────────────────────────────── */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--green);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 18px;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
}
.accent { color: var(--green); }

/* ─────────────────────────────────────────────────
   WHAT IS DEFINED (pillars)
───────────────────────────────────────────────── */
.what-section {
  padding: 110px 0 100px;
  border-top: 1px solid var(--border);
}
.pillars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 52px;
}
.pillar {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 28px 30px;
  background: var(--bg-card);
  transition: background var(--transition);
}
.pillar:hover { background: var(--bg-card-alt); }
.pillar-number {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--green);
  font-weight: 600;
  letter-spacing: 0.05em;
  flex-shrink: 0;
  margin-top: 2px;
  opacity: 0.7;
}
.pillar-head {
  display: block;
  font-size: 0.92rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.pillar-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.65;
  display: block;
}

/* ─────────────────────────────────────────────────
   FEATURES
───────────────────────────────────────────────── */
.features-section {
  padding: 110px 0;
  border-top: 1px solid var(--border);
}
.features-section .section-title { margin-bottom: 52px; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green-dim), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-alt);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 40px; height: 40px;
  background: var(--green-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green);
  transition: all var(--transition);
}
.feature-icon svg { width: 18px; height: 18px; }
.feature-card:hover .feature-icon {
  background: rgba(34, 197, 94, 0.12);
  border-color: rgba(34, 197, 94, 0.3);
}
.feature-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.feature-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}
.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 4px;
}
.tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--green-dim);
  background: var(--green-deep);
  border: 1px solid rgba(34, 197, 94, 0.14);
  border-radius: 4px;
  padding: 2px 7px;
}

/* ─────────────────────────────────────────────────
   ACTIONS SHOWCASE (tabs)
───────────────────────────────────────────────── */
.actions-section {
  padding: 110px 0;
  border-top: 1px solid var(--border);
}
.actions-section .section-desc { margin-bottom: 48px; }

.action-tabs-wrap { margin-top: 48px; }

.action-tabs {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-bottom: 0;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}
.atab {
  font-family: var(--font-sans);
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 10px 16px;
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: -1px;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}
.atab:hover { color: var(--text-secondary); }
.atab.active {
  color: var(--green);
  border-bottom-color: var(--green);
  background: rgba(255, 255, 255, 0.03);
}

.action-panels { margin-top: 0; }
.action-panel {
  display: none;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: start;
  padding: 32px 0;
}
.action-panel.active { display: grid; }

.ap-desc h3 {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}
.ap-desc p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}
.ap-desc p code {
  font-size: 0.82rem;
}

/* ─────────────────────────────────────────────────
   CODE WINDOW (shared)
───────────────────────────────────────────────── */
.code-window {
  background: #0c0c14;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.code-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
}
.code-dots { display: flex; gap: 6px; }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-red    { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green  { background: #28c840; }
.code-filename {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-left: auto;
}
.code-body {
  padding: 20px 22px 24px;
  overflow-x: auto;
  margin: 0;
}
.code-body code {
  font-family: var(--font-mono);
  font-size: 0.81rem;
  line-height: 1.75;
  display: block;
  background: none;
  color: var(--text-secondary);
  padding: 0;
  border-radius: 0;
}

.ck  { color: #67e8f9; }   /* keyword — cyan */
.cn  { color: #86efac; }   /* classname — light green */
.cf  { color: #a5b4fc; }   /* function — indigo */
.cm  { color: #475569; }   /* annotation */
.cc  { color: #374151; font-style: italic; } /* comment */
.cs  { color: #fde68a; }   /* string/constant — amber */

/* ─────────────────────────────────────────────────
   UTILITIES
───────────────────────────────────────────────── */
.utilities-section {
  padding: 110px 0;
  border-top: 1px solid var(--border);
}
.utilities-section .section-title { margin-bottom: 52px; }

.util-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.util-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: all var(--transition);
}
.util-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-alt);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}
.util-header {
  display: flex;
  align-items: center;
  gap: 14px;
}
.util-icon {
  width: 38px; height: 38px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green);
  flex-shrink: 0;
}
.util-icon svg { width: 18px; height: 18px; }
.util-title {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
}
.util-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
}
.util-snippet {
  background: #0c0c14;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.7;
  color: var(--text-secondary);
}
.util-snippet code {
  background: none;
  color: inherit;
  padding: 0;
  font-size: inherit;
  border-radius: 0;
}

/* ─────────────────────────────────────────────────
   SETUP (steps)
───────────────────────────────────────────────── */
.setup-section {
  padding: 110px 0;
  border-top: 1px solid var(--border);
}
.setup-section .section-title { margin-bottom: 52px; }

.steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 0 32px;
  padding: 40px 0;
  border-top: 1px solid var(--border);
  position: relative;
}
.step:last-child { border-bottom: 1px solid var(--border); }

.step-num {
  width: 40px; height: 40px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--green);
  font-weight: 600;
  flex-shrink: 0;
  margin-top: 4px;
}
.step-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.step-title {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.step-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 600px;
}
.step-action-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 4px;
}

/* Mechanism step chain */
.mechsteps {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}
.mstep {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--green-dim);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 10px;
}
.mstep-arrow {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* ─────────────────────────────────────────────────
   CTA
───────────────────────────────────────────────── */
.cta-section {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}
.cta-container {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  position: relative;
}
.cta-glow {
  position: absolute;
  width: 600px; height: 300px;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse, rgba(16, 185, 129, 0.1) 0%, transparent 70%);
  pointer-events: none;
}
.cta-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
}
.cta-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 480px;
  line-height: 1.7;
}
.cta-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
}

/* ─────────────────────────────────────────────────
   WHAT IS AN ACTION — the core concept
───────────────────────────────────────────────── */
.action-concept-section {
  padding: 110px 0;
  border-top: 1px solid var(--border);
}

/* ── Cycle diagram ── */
.cycle-card {
  margin-top: 40px;
  padding: 26px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.cycle-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}
.cycle-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}
.cycle-note {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-left: auto;
}
.cycle-lanes { display: flex; flex-direction: column; gap: 14px; }
.lane {
  display: grid;
  grid-template-columns: 190px 1fr auto;
  align-items: center;
  gap: 16px;
}
.lane-meta { display: flex; align-items: center; gap: 8px; min-width: 0; }
.lane-name {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
}
.lane-badge {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-muted);
  background: rgba(255,255,255,0.05);
  white-space: nowrap;
}
.lane-badge-mon { color: var(--green); background: var(--green-deep); }
.lane-ticks { display: flex; gap: 5px; }
.tick {
  flex: 1;
  height: 22px;
  min-width: 8px;
  border-radius: 3px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
}
.tick-on  { background: var(--green-dim); border-color: transparent; }
.tick-mon { background: var(--green-deep); border-color: var(--green); }
.lane-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.cycle-legend {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── Monitors vs Steps ── */
.kind-intro {
  margin-top: 26px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}
.kind-intro strong { color: var(--text-primary); font-weight: 600; }
.kind-intro code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--green);
}
.kind-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 14px;
}
.kind-card {
  padding: 24px 26px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}
.kind-card:hover { border-color: var(--border-hover); }
/* Tags now hold real method names, so they read as code rather than labels */
.kind-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--text-muted);
  background: rgba(255,255,255,0.05);
  padding: 4px 9px;
  border-radius: 4px;
  margin-bottom: 12px;
}
.kind-tag-mon { color: var(--green); background: var(--green-deep); }
.kind-head {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.kind-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.75;
}
.kind-text + .kind-text { margin-top: 10px; }
.kind-text em { color: var(--text-primary); font-style: italic; }
.kind-text strong { color: var(--text-primary); font-weight: 600; }
.kind-text code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--green);
}

/* ── Runner ── */
.runner-card {
  display: flex;
  gap: 22px;
  align-items: flex-start;
  margin-top: 16px;
  padding: 26px 28px;
  background: var(--bg-card-alt);
  border: 1px solid var(--border);
  border-left: 2px solid var(--green);
  border-radius: var(--radius);
}
.runner-icon {
  color: var(--green);
  flex-shrink: 0;
  width: 30px; height: 30px;
  margin-top: 2px;
}
.runner-icon svg { width: 100%; height: 100%; }
.runner-head {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.runner-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.75;
}
.runner-text + .runner-text { margin-top: 10px; }
.runner-text code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--green);
}
.runner-text strong { color: var(--text-primary); font-weight: 600; }

/* ── Auto vs TeleOp ── */
.mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 16px;
}
.mode-card {
  padding: 24px 26px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.mode-head {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.mode-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
}
.mode-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.75;
}
.mode-text + .mode-text { margin-top: 10px; }
.mode-text em { color: var(--text-primary); font-style: italic; }
.mode-text strong { color: var(--text-primary); font-weight: 600; }

@media (max-width: 760px) {
  .action-concept-section { padding: 72px 0; }
  .cycle-card { padding: 20px 18px; }
  /* Stack the lane label above its squares so the row still fits a phone */
  .lane {
    grid-template-columns: 1fr;
    gap: 7px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
  }
  .lane:last-child { border-bottom: none; padding-bottom: 0; }
  .lane-note { white-space: normal; }
  .tick { height: 18px; }
  .cycle-note { margin-left: 0; }
}

/* ─────────────────────────────────────────────────
   EXAMPLES — tabbed real-robot code
───────────────────────────────────────────────── */
.examples-section {
  padding: 110px 0;
  border-top: 1px solid var(--border);
}
.ex-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 32px 0 20px;
}
.ex-tab {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 16px;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.ex-tab:hover {
  color: var(--text-secondary);
  border-color: var(--border-hover);
}
.ex-tab-active,
.ex-tab-active:hover {
  color: var(--green);
  border-color: var(--green);
  background: var(--green-deep);
}
.ex-caption {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 620px;
  margin-bottom: 16px;
}
.ex-caption code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--green);
}
.ex-panel[hidden] { display: none; }

@media (max-width: 640px) {
  .examples-section { padding: 72px 0; }
  .ex-tabs {
    /* Let the tab strip scroll sideways instead of wrapping into a tall stack */
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }
  .ex-tab { font-size: 0.8rem; padding: 8px 13px; }
  .code-body { padding: 16px 14px 18px; }
  .code-body code { font-size: 0.72rem; line-height: 1.65; }
}

/* ─────────────────────────────────────────────────
   SPREAD THE WORD
───────────────────────────────────────────────── */
.share-section {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}
.share-container {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}
.share-title {
  font-size: clamp(1.6rem, 3.6vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}
.share-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 460px;
  line-height: 1.7;
}
.share-btns {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 8px;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition);
}
.share-btn:hover {
  color: var(--text-primary);
  border-color: var(--green);
  background: var(--green-deep);
  transform: translateY(-1px);
}
.share-btn .icon { opacity: 0.75; transition: opacity var(--transition); }
.share-btn:hover .icon { opacity: 1; }

/* Copy button flips green once the link is on the clipboard */
.share-btn-copy.copied {
  color: var(--green);
  border-color: var(--green);
  background: var(--green-deep);
}

.share-native { margin-top: 4px; }

.share-url {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  margin-top: 4px;
}

@media (max-width: 640px) {
  .share-section { padding: 72px 0; }
  .share-btns { gap: 8px; }
  .share-btn { padding: 9px 14px; font-size: 0.82rem; }
}

/* ─────────────────────────────────────────────────
   FOOTER
───────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 36px 28px;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-secondary);
}
.footer-version {
  font-size: 0.72rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 7px;
}
.footer-team {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-links {
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-link {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-link:hover { color: var(--green); }
.footer-sep { color: var(--text-muted); font-size: 0.75rem; }

/* Team Undefined links — hero badge + footer. Inherit each context's colour
   so they blend in, and only reveal themselves on hover. */
.team-link {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.team-link:hover {
  color: var(--green);
  border-bottom-color: var(--green);
}
.team-link:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ─────────────────────────────────────────────────
   ANIMATIONS
───────────────────────────────────────────────── */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeSlideDown {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─────────────────────────────────────────────────
   RESPONSIVE
───────────────────────────────────────────────── */
@media (max-width: 900px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }

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

  .action-panel { grid-template-columns: 1fr; }
  .action-panel.active { display: flex; flex-direction: column; gap: 24px; }
  .action-tabs { gap: 2px; }
  .atab { padding: 8px 12px; font-size: 0.78rem; }

  .step { grid-template-columns: 1fr; gap: 14px; }
  .step-num { width: 32px; height: 32px; font-size: 0.78rem; }

  .mechsteps { flex-direction: column; align-items: flex-start; }
  .mstep-arrow { display: none; }

  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }

  .cta-btns { flex-direction: column; align-items: center; }
}