/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface-2: #22263a;
  --border: #2e3452;
  --text: #e2e8f0;
  --text-muted: #8892a4;
  --accent-blue: #5b9bd5;
  --accent-purple: #9b71d3;
  --accent-green: #4caf8a;
  --accent-orange: #e89c4a;
  --accent-red: #e0605a;
  --code-bg: #12151f;
  --sidebar-width: 260px;
  --topbar-height: 56px;
  --radius: 10px;
  --radius-sm: 6px;
  --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html { scroll-behavior: smooth; }

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

/* === Sidebar === */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  width: var(--sidebar-width);
  background: var(--surface);
  border-right: 1px solid var(--border);
  z-index: 100;
  transform: translateX(-100%);
  transition: transform .25s ease;
  overflow-y: auto;
}

.sidebar.open { transform: translateX(0); }

.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
}

.logo {
  font-weight: 700;
  font-size: .95rem;
  color: var(--accent-blue);
}

.close-sidebar {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
}

.nav-list { list-style: none; padding: .5rem 0; }

.nav-list li a {
  display: block;
  padding: .5rem 1.25rem;
  font-size: .85rem;
  color: var(--text-muted);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: all .15s;
}

.nav-list li a:hover,
.nav-list li a.active {
  color: var(--text);
  border-left-color: var(--accent-blue);
  background: rgba(91, 155, 213, .07);
}

.nav-list li a .nav-tag {
  font-size: .7rem;
  padding: .1rem .35rem;
  border-radius: 3px;
  margin-left: .4rem;
  vertical-align: middle;
}

.nav-tag-nondev { background: rgba(76, 175, 138, .2); color: var(--nondev-color); }
.nav-tag-dev { background: rgba(91, 155, 213, .2); color: var(--dev-color); }

.overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 99;
}
.overlay.show { display: block; }

/* === Topbar === */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-height);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0 1.25rem;
  z-index: 50;
}

.menu-btn {
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
  padding: .25rem;
}

.topbar-title {
  font-weight: 600;
  font-size: .95rem;
  flex: 1;
}

/* === Main Content === */
.content {
  padding-top: calc(var(--topbar-height) + 2rem);
  padding-bottom: 4rem;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* === Slides === */
.slide {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  overflow: hidden;
  transition: opacity .2s, transform .2s;
}

.slide.hidden {
  display: none;
}

.slide-inner {
  padding: 2rem 2.25rem;
}

.slide h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--text);
}

.slide p.intro {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  font-size: 1rem;
}

/* === Hero === */
.hero {
  background: linear-gradient(135deg, #12192e 0%, #1a1435 50%, #0f1a20 100%);
  border-color: #2e3a5a;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: .5rem;
}

.hero .subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: .5rem;
}

.hero .tagline {
  font-size: .95rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.hero-badges {
  display: flex;
  gap: .75rem;
  justify-content: center;
}

.badge {
  font-size: .8rem;
  padding: .35rem .85rem;
  border-radius: 99px;
  font-weight: 600;
}
.badge-blue { background: rgba(91, 155, 213, .15); color: var(--accent-blue); border: 1px solid rgba(91, 155, 213, .3); }
.badge-purple { background: rgba(155, 113, 211, .15); color: var(--accent-purple); border: 1px solid rgba(155, 113, 211, .3); }
.badge-green { background: rgba(76, 175, 138, .15); color: var(--accent-green); border: 1px solid rgba(76, 175, 138, .3); }
.badge-orange { background: rgba(232, 156, 74, .15); color: var(--accent-orange); border: 1px solid rgba(232, 156, 74, .3); }

/* === Feature List === */
.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .6rem;
  margin-bottom: 1.25rem;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: .95rem;
}

.icon { font-size: 1.1rem; }

/* === Callout === */
.callout {
  background: var(--surface-2);
  border-left: 3px solid var(--accent-blue);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: .85rem 1rem;
  font-size: .9rem;
  color: var(--text-muted);
  margin-top: 1.25rem;
}

.callout strong { color: var(--text); }
.callout em { color: var(--accent-blue); font-style: normal; font-weight: 600; }

.callout-accent { border-left-color: var(--accent-purple); }
.callout-safe { border-left-color: var(--accent-green); }
.callout-final {
  border-left-color: var(--accent-orange);
  text-align: center;
  font-size: 1rem;
  line-height: 1.7;
}

/* === Two Column === */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.col {
  background: var(--surface-2);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  border: 1px solid var(--border);
}

.col h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: .75rem;
}

.col-nondev h3 { color: var(--nondev-color); }
.col-dev h3 { color: var(--dev-color); }

.col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .45rem;
}

.col ul li {
  font-size: .88rem;
  color: var(--text-muted);
  padding-left: .75rem;
  position: relative;
}
.col ul li::before { content: '—'; position: absolute; left: 0; color: var(--border); }

/* === Platform Grid === */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .85rem;
  margin-bottom: 1.25rem;
}

.platform-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem .75rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.platform-card .platform-icon { font-size: 1.5rem; }
.platform-card span { font-size: .8rem; color: var(--text-muted); }
.platform-card code { font-size: .75rem; color: var(--accent-blue); font-family: var(--font-mono); }

/* === Capability Grid === */
.capability-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.capability-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.1rem;
}

.capability-card h4 {
  font-size: .9rem;
  font-weight: 700;
  color: var(--accent-blue);
  margin-bottom: .5rem;
}

.capability-card p {
  font-size: .85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* === Tables === */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .88rem;
}

.data-table th {
  text-align: left;
  padding: .65rem .85rem;
  background: var(--surface-2);
  color: var(--text-muted);
  font-weight: 600;
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: .65rem .85rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  color: var(--text);
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(255,255,255,.02); }

.data-table code {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--accent-purple);
  background: rgba(155, 113, 211, .1);
  padding: .1rem .3rem;
  border-radius: 3px;
}

/* === Code Blocks === */
.code-demo {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 1rem;
}

.code-label {
  font-size: .75rem;
  color: var(--text-muted);
  padding: .5rem 1rem;
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: .05em;
}

.code-demo pre {
  padding: .85rem 1rem;
  overflow-x: auto;
}

.code-demo code {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: #b5d4f7;
  line-height: 1.6;
}

.code-result {
  padding: .6rem 1rem;
  background: rgba(76, 175, 138, .06);
  border-top: 1px solid var(--border);
  font-size: .82rem;
  color: var(--nondev-color);
  font-style: italic;
}

pre code {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: #b5d4f7;
  line-height: 1.6;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .85rem 1rem;
  overflow-x: auto;
}

/* === Example List === */
.example-list {
  display: flex;
  flex-direction: column;
  gap: .85rem;
}

.example-item {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.example-label {
  font-size: .75rem;
  color: var(--text-muted);
  padding: .45rem 1rem;
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: .05em;
  background: var(--surface-2);
}

.example-item pre {
  margin: 0;
  border: none;
  border-radius: 0;
  padding: .75rem 1rem;
}

/* === Pillar Tags === */
.pillar-tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 700;
  padding: .2rem .65rem;
  border-radius: 99px;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: 1rem;
}

.pillar-tag-doing {
  background: rgba(76, 175, 138, .15);
  color: var(--accent-green);
  border: 1px solid rgba(76, 175, 138, .25);
}

.pillar-tag-not {
  background: rgba(224, 96, 90, .15);
  color: var(--accent-red);
  border: 1px solid rgba(224, 96, 90, .25);
}

.pillar-tag-how {
  background: rgba(91, 155, 213, .15);
  color: var(--accent-blue);
  border: 1px solid rgba(91, 155, 213, .25);
}

/* === Pillar Intro Grid === */
.pillar-intro-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
}

.pillar-intro-card {
  border-radius: var(--radius-sm);
  padding: 1.25rem 1rem;
  text-align: center;
  border: 1px solid var(--border);
  background: var(--surface-2);
}

.pillar-intro-icon {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: .5rem;
}

.pillar-intro-label {
  font-size: .82rem;
  font-weight: 700;
  margin-bottom: .3rem;
}

.pillar-intro-sub {
  font-size: .78rem;
  color: var(--text-muted);
}

.card-doing .pillar-intro-icon { color: var(--accent-green); }
.card-doing .pillar-intro-label { color: var(--accent-green); }
.card-doing { border-color: rgba(76, 175, 138, .2); }

.card-not .pillar-intro-icon { color: var(--accent-red); }
.card-not .pillar-intro-label { color: var(--accent-red); }
.card-not { border-color: rgba(224, 96, 90, .2); }

.card-how .pillar-intro-icon { color: var(--accent-blue); }
.card-how .pillar-intro-label { color: var(--accent-blue); }
.card-how { border-color: rgba(91, 155, 213, .2); }

.card-spec .pillar-intro-icon { color: var(--accent-orange); }
.card-spec .pillar-intro-label { color: var(--accent-orange); }
.card-spec { border-color: rgba(232, 156, 74, .2); }

/* === Pillar tag spec === */
.pillar-tag-spec {
  background: rgba(232, 156, 74, .15);
  color: var(--accent-orange);
  border: 1px solid rgba(232, 156, 74, .25);
}

/* === Spec example === */
.spec-example {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.spec-side {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.1rem;
}

.spec-side p {
  font-size: .85rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: .5rem;
  font-style: italic;
}

.spec-label {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: .6rem;
}

.spec-side-without .spec-label { color: var(--accent-red); }
.spec-side-without { border-color: rgba(224, 96, 90, .2); }

.spec-side-with .spec-label { color: var(--accent-green); }
.spec-side-with { border-color: rgba(76, 175, 138, .2); }

.spec-result-bad  { color: var(--accent-red) !important; font-style: normal !important; font-size: .8rem !important; }
.spec-result-good { color: var(--accent-green) !important; font-style: normal !important; font-size: .8rem !important; }

/* === Collab examples === */
.collab-title {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-muted);
  margin: 1.5rem 0 .85rem;
}

.collab-list {
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.collab-item {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-purple);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: .85rem 1rem;
}

.collab-from {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--accent-purple);
  margin-bottom: .45rem;
}

.collab-item p {
  font-size: .875rem;
  color: var(--text-muted);
  line-height: 1.6;
  font-style: italic;
}

/* === Doing / Not Doing combined block === */
.doing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.doing-col {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  overflow: hidden;
}

.doing-col-header {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .75rem 1.1rem;
  border-bottom: 1px solid var(--border);
}

.doing-col-icon {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
}

.doing-col-title {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.doing-col-yes { background: rgba(76, 175, 138, .04); border-color: rgba(76, 175, 138, .2); }
.doing-col-yes .doing-col-header { background: rgba(76, 175, 138, .08); }
.doing-col-yes .doing-col-icon { color: var(--accent-green); }
.doing-col-yes .doing-col-title { color: var(--accent-green); }

.doing-col-no { background: rgba(224, 96, 90, .04); border-color: rgba(224, 96, 90, .2); }
.doing-col-no .doing-col-header { background: rgba(224, 96, 90, .08); }
.doing-col-no .doing-col-icon { color: var(--accent-red); }
.doing-col-no .doing-col-title { color: var(--accent-red); }

.doing-list {
  list-style: none;
  padding: .85rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: .55rem;
}

.doing-list li {
  font-size: .875rem;
  color: var(--text-muted);
  padding-left: .9rem;
  position: relative;
  line-height: 1.5;
}

.doing-col-yes .doing-list li::before { content: '→'; position: absolute; left: 0; color: var(--accent-green); font-size: .75rem; top: .1rem; }
.doing-col-no  .doing-list li::before { content: '✗'; position: absolute; left: 0; color: var(--accent-red);   font-size: .7rem;  top: .1rem; }

.doing-reason {
  display: block;
  font-size: .78rem;
  color: var(--text-muted);
  margin-top: .2rem;
  font-style: italic;
  opacity: .8;
}

.doing-note {
  margin: 0 1.1rem .85rem;
  padding: .65rem .85rem;
  border-radius: var(--radius-sm);
  font-size: .82rem;
  line-height: 1.5;
}

.doing-note-yes { background: rgba(76, 175, 138, .08); color: var(--accent-green); }
.doing-note-yes strong { color: var(--accent-green); }
.doing-note-no  { background: rgba(224, 96, 90, .08);  color: var(--text-muted); }
.doing-note-no strong { color: var(--text); }

/* === Boundary List (not-doing slide) === */
.boundary-list {
  display: flex;
  flex-direction: column;
  gap: .75rem;
  margin-bottom: 1.25rem;
}

.boundary-item {
  display: flex;
  align-items: flex-start;
  gap: .85rem;
  background: var(--surface-2);
  border: 1px solid rgba(224, 96, 90, .15);
  border-radius: var(--radius-sm);
  padding: .85rem 1rem;
  font-size: .9rem;
}

.boundary-icon {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-red);
  flex-shrink: 0;
  margin-top: .05rem;
}

.boundary-item strong { color: var(--accent-red); }

/* === Placeholder block === */
.placeholder-block {
  border: 2px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 2.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: .875rem;
}

/* === Warning Callout === */
.callout-warning {
  border-left-color: var(--accent-orange);
}

/* === Icon variants === */
.icon-green { color: var(--accent-green); }

/* === Hero eyebrow === */
.hero-eyebrow {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--accent-blue);
  margin-bottom: .75rem;
}

/* === MCP Grid === */
.mcp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .85rem;
}

.mcp-card-partial { opacity: .8; }

.mcp-badge-partial {
  font-size: .65rem;
  font-weight: 700;
  background: rgba(232, 156, 74, .15);
  color: var(--accent-orange);
  border: 1px solid rgba(232, 156, 74, .25);
  padding: .1rem .35rem;
  border-radius: 4px;
  vertical-align: middle;
  margin-left: .3rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.mcp-card {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.mcp-name {
  font-size: .78rem;
  font-weight: 700;
  color: var(--accent-purple);
  padding: .45rem 1rem;
  border-bottom: 1px solid var(--border);
  background: rgba(155, 113, 211, .07);
  text-transform: uppercase;
  letter-spacing: .04em;
}

.mcp-card pre {
  margin: 0;
  border: none;
  border-radius: 0;
  padding: .75rem 1rem;
  font-size: .78rem;
}

/* === Architecture Diagram === */
.architecture-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin: 1.5rem 0;
  flex-wrap: wrap;
}

.arch-box {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: .3rem;
}

.arch-box strong { font-size: .95rem; }
.arch-box span { font-size: .8rem; color: var(--text-muted); }

.arch-claude { border-color: var(--accent-blue); }
.arch-mcp { border-color: var(--accent-purple); }

.arch-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .2rem;
}

.arch-label {
  font-size: .72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .04em;
}

.arch-line { color: var(--text-muted); font-size: .9rem; letter-spacing: -.05em; }

/* === Steps List === */
.steps-list {
  list-style: none;
  counter-reset: steps;
  display: flex;
  flex-direction: column;
  gap: .6rem;
}

.steps-list li {
  counter-increment: steps;
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  font-size: .9rem;
  color: var(--text-muted);
}

.steps-list li::before {
  content: counter(steps);
  background: var(--accent-blue);
  color: #fff;
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .72rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: .1rem;
}

/* === Comparison === */
.comparison {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.comparison-card {
  flex: 1;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.1rem;
}

.comparison-card h4 {
  font-size: .88rem;
  font-weight: 700;
  margin-bottom: .5rem;
}

.comparison-card.without h4 { color: var(--text-muted); }
.comparison-card.with h4 { color: var(--accent-green); }

.comparison-card p {
  font-size: .85rem;
  color: var(--text-muted);
}

.comparison-arrow {
  font-size: 1.5rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

/* === Tips === */
.tip-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.tip {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.1rem;
}

.tip h4 {
  font-size: .88rem;
  font-weight: 700;
  color: var(--accent-blue);
  margin-bottom: .6rem;
}

.tip pre {
  margin: 0 0 .5rem;
  font-size: .8rem;
}

.tip p {
  font-size: .82rem;
  color: var(--text-muted);
  margin-top: .5rem;
}

/* === Summary === */
.slide-summary { background: linear-gradient(135deg, #0f1a2a 0%, #150f2a 100%); }

.summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.summary-card {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.1rem;
  text-align: center;
}

.summary-icon { font-size: 1.75rem; margin-bottom: .5rem; }

.summary-card h4 {
  font-size: .9rem;
  font-weight: 700;
  margin-bottom: .4rem;
  color: var(--text);
}

.summary-card p {
  font-size: .82rem;
  color: var(--text-muted);
}

.summary-card code {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--accent-purple);
}

/* === Glossary === */
.glossary-table td:first-child { white-space: nowrap; }

/* === Which AI === */
.ai-compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.ai-card {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  overflow: hidden;
}

.ai-card-header {
  padding: .85rem 1.1rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: .2rem;
}

.ai-card-name {
  font-size: .95rem;
  font-weight: 700;
}

.ai-card-sub {
  font-size: .75rem;
  opacity: .7;
}

.ai-card-chatgpt { background: rgba(16, 163, 127, .04); border-color: rgba(16, 163, 127, .2); }
.ai-card-chatgpt .ai-card-header { background: rgba(16, 163, 127, .08); }
.ai-card-chatgpt .ai-card-name { color: #10a37f; }

.ai-card-claude { background: rgba(91, 155, 213, .04); border-color: rgba(91, 155, 213, .2); }
.ai-card-claude .ai-card-header { background: rgba(91, 155, 213, .08); }
.ai-card-claude .ai-card-name { color: var(--accent-blue); }

.ai-list {
  list-style: none;
  padding: .85rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.ai-list li {
  font-size: .875rem;
  color: var(--text-muted);
  padding-left: .9rem;
  position: relative;
  line-height: 1.5;
}

.ai-card-chatgpt .ai-list li::before { content: '·'; position: absolute; left: 0; color: #10a37f; font-size: 1.1rem; line-height: 1.2; }
.ai-card-claude  .ai-list li::before { content: '·'; position: absolute; left: 0; color: var(--accent-blue); font-size: 1.1rem; line-height: 1.2; }

/* === Getting Started === */
.setup-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.setup-col-title {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-muted);
  margin-bottom: .85rem;
}

.setup-note {
  font-size: .82rem;
  color: var(--text-muted);
  margin-top: .75rem;
  line-height: 1.55;
}

.credentials-block {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: .65rem;
}

.credentials-block p {
  font-size: .875rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.credentials-block strong { color: var(--text); }

/* === Session tips block === */
.session-tips-block {
  margin-top: 1.75rem;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.tips-and-modes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.tip-group-title {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-muted);
  margin-bottom: .75rem;
}

.session-tips-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .6rem;
}

.session-tips-list li {
  font-size: .875rem;
  color: var(--text-muted);
  line-height: 1.5;
  display: flex;
  gap: .6rem;
  align-items: flex-start;
}

.tip-key {
  font-family: var(--font-mono);
  font-size: .75rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--accent-blue);
  padding: .1rem .4rem;
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: .1rem;
}

.plan-act-compare {
  display: flex;
  flex-direction: column;
  gap: .6rem;
}

.plan-act-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .75rem 1rem;
}

.plan-act-label {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: .35rem;
}

.plan-card .plan-act-label { color: var(--accent-purple); }
.act-card  .plan-act-label { color: var(--accent-blue); }

.plan-act-card p {
  font-size: .82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.plan-act-card p strong { color: var(--text); }

.plan-act-tip {
  margin-top: .75rem;
  font-size: .82rem;
  color: var(--text-muted);
  line-height: 1.6;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .65rem .85rem;
  display: flex;
  flex-direction: column;
  gap: .3rem;
}

.plan-act-tip .tip-key {
  font-family: var(--font-sans);
  font-size: .75rem;
  background: rgba(232, 156, 74, .1);
  border-color: rgba(232, 156, 74, .25);
  color: var(--accent-orange);
  align-self: flex-start;
}

/* === Prompt quality === */
.prompt-quality {
  border-top: 1px solid var(--border);
  padding-top: 1.25rem;
}

.prompt-quality-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: .85rem;
  align-items: center;
}

.prompt-quality-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .85rem 1rem;
}

.pq-label {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: .4rem;
}

.prompt-bad  .pq-label { color: var(--accent-red); }
.prompt-good .pq-label { color: var(--accent-green); }

.prompt-quality-card p {
  font-size: .875rem;
  color: var(--text);
  line-height: 1.5;
  font-style: italic;
  margin-bottom: .4rem;
}

.pq-result {
  display: block;
  font-size: .78rem;
  line-height: 1.4;
}

.prompt-bad  .pq-result { color: var(--accent-red); }
.prompt-good .pq-result { color: var(--accent-green); }

.prompt-quality-arrow {
  font-size: 1.25rem;
  color: var(--text-muted);
  text-align: center;
}

/* === What to Build === */
.operations-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.op-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.1rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: .4rem;
}

.op-icon { font-size: 1.5rem; }

.op-name {
  font-size: .875rem;
  font-weight: 700;
  color: var(--text);
}

.op-desc {
  font-size: .78rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.skills-ownership {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.skills-ownership-header {
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: .65rem 1rem;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,.02);
}

.skills-ownership-body {
  padding: .85rem 1rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.skills-ownership-row {
  display: flex;
  gap: 2rem;
}

.skills-ownership-reason {
  font-size: .82rem;
  color: var(--text-muted);
  line-height: 1.6;
  border-top: 1px solid var(--border);
  padding-top: .75rem;
}

.skills-ownership-reason strong { color: var(--text); }

.skills-ownership-trust {
  font-size: .82rem;
  color: var(--text-muted);
  line-height: 1.6;
  border-top: 1px solid var(--border);
  padding-top: .75rem;
  font-style: italic;
}

.skills-owner {
  display: flex;
  align-items: center;
  gap: .6rem;
}

.owner-tag {
  font-size: .72rem;
  font-weight: 700;
  padding: .2rem .6rem;
  border-radius: 99px;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.owner-frontend { background: rgba(155, 113, 211, .15); color: var(--accent-purple); border: 1px solid rgba(155, 113, 211, .25); }
.owner-backend  { background: rgba(91, 155, 213, .15);  color: var(--accent-blue);   border: 1px solid rgba(91, 155, 213, .25);  }

.owner-name {
  font-size: .875rem;
  color: var(--text);
}

/* === How to Use It === */
.how-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.25rem;
}

.how-col-title {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-muted);
  margin-bottom: .85rem;
}

.prompt-example {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-purple);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  overflow: hidden;
  margin-bottom: .85rem;
}

.prompt-label {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--accent-purple);
  padding: .45rem 1rem;
  border-bottom: 1px solid var(--border);
}

.prompt-example p {
  font-size: .875rem;
  color: var(--text-muted);
  padding: .85rem 1rem;
  line-height: 1.6;
  font-style: italic;
}

.prompt-what-happens {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.prompt-step {
  display: flex;
  align-items: flex-start;
  gap: .65rem;
  font-size: .82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.prompt-step span {
  background: var(--surface-2);
  border: 1px solid var(--border);
  width: 1.3rem;
  height: 1.3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .7rem;
  font-weight: 700;
  color: var(--accent-blue);
  flex-shrink: 0;
}

/* === Loom placeholder === */
.loom-placeholder {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: .75rem;
}

.loom-play {
  width: 2.75rem;
  height: 2.75rem;
  background: rgba(232, 156, 74, .15);
  border: 1px solid rgba(232, 156, 74, .3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  color: var(--accent-orange);
  flex-shrink: 0;
}

.loom-text {
  display: flex;
  flex-direction: column;
  gap: .2rem;
}

.loom-text strong {
  font-size: .9rem;
  color: var(--text);
}

.loom-text span {
  font-size: .78rem;
  color: var(--text-muted);
}

.loom-note {
  font-size: .8rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* === Limits callout === */
.callout-demo {
  border-left-color: var(--accent-green);
  margin-bottom: 1rem;
}

.callout-demo strong { color: var(--accent-green); }

.callout-limits {
  border-left-color: var(--accent-orange);
  margin-top: 1.75rem;
}

.callout-limits strong { color: var(--text); }

/* === Plugin setup block === */

.plugin-setup-block {
  margin-top: 2rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
}

.plugin-setup-intro {
  font-size: .875rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.plugin-setup-intro strong { color: var(--text); }

.plugin-repo-link {
  color: var(--accent-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(74, 158, 232, .3);
  transition: border-color .15s;
}

.plugin-repo-link:hover { border-bottom-color: var(--accent-blue); }

.plugin-setup-cols {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.plugin-setup-step {
  display: flex;
  align-items: flex-start;
  gap: .65rem;
  font-size: .82rem;
  color: var(--text-muted);
  line-height: 1.5;
  flex: 1;
}

.plugin-setup-step-num {
  background: var(--surface-2);
  border: 1px solid var(--border);
  width: 1.3rem;
  height: 1.3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .7rem;
  font-weight: 700;
  color: var(--accent-blue);
  flex-shrink: 0;
}

.plugin-setup-step code {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: .1em .35em;
  font-size: .8rem;
  color: var(--accent-purple);
}

.plugin-snippet-tab-group {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: .75rem;
}

.plugin-snippet-label {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--accent-blue);
  margin-bottom: .4rem;
}

.plugin-snippet .code-demo pre {
  margin: 0;
  font-size: .76rem;
  line-height: 1.55;
}

/* === Loom video showcase === */
.loom-videos-section {
  margin-top: 2rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
}

.loom-videos-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
}

.loom-link-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}

.loom-link-card:hover {
  border-color: var(--accent-orange);
  background: rgba(232, 156, 74, .05);
}

.loom-link-card:hover .loom-play {
  background: rgba(232, 156, 74, .25);
  border-color: rgba(232, 156, 74, .5);
}

.loom-link-card .loom-text strong { color: var(--text); }
.loom-link-card .loom-text span { color: var(--text-muted); }

/* === Responsive === */
@media (max-width: 640px) {
  .slide-inner { padding: 1.25rem 1rem; }
  .two-col, .capability-grid, .mcp-grid, .summary-grid { grid-template-columns: 1fr; }
  .plugin-snippet-tab-group, .loom-videos-grid { grid-template-columns: 1fr; }
  .plugin-setup-cols { flex-direction: column; gap: .75rem; }
  .platform-grid { grid-template-columns: 1fr 1fr; }
  .comparison { flex-direction: column; }
  .comparison-arrow { transform: rotate(90deg); }
  .hero h1 { font-size: 1.85rem; }
  .audience-toggle { gap: .25rem; }
  .toggle-btn { padding: .25rem .55rem; font-size: .75rem; }
  .how-grid { grid-template-columns: 1fr; }
}