/* ============================================================
   OffOps Landing — Premium Enterprise Skin
   ~1600 lines | Instrument Sans + Space Grotesk | Linear/Vercel aesthetic
   ============================================================ */

/* ── Design tokens ── */
:root {
  --bg: #faf7f2;
  --bg-soft: #f4efe6;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --ink: #1a1a1a;
  --muted: #6e675e;
  --muted-light: #9b9490;
  --line: rgba(0, 0, 0, 0.06);
  --line-strong: rgba(0, 0, 0, 0.12);
  --accent: #ff7f36;
  --accent-strong: #f05b14;
  --accent-soft: rgba(255, 127, 54, 0.12);
  --blue: #4b7dff;
  --blue-soft: rgba(75, 125, 255, 0.10);
  --dark: #1a1a1a;
  --dark-surface: #242424;
  --dark-border: rgba(255, 255, 255, 0.08);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  --radius-xl: 20px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-xs: 6px;
  --max-width: 1140px;
  --transition: 200ms ease;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: "Instrument Sans", "Segoe UI", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

button, input, textarea, select { font: inherit; }

button { border: 0; background: none; cursor: pointer; padding: 0; }

img, svg { display: block; max-width: 100%; }

h1, h2, h3, h4 {
  margin: 0;
  font-family: "Space Grotesk", "Instrument Sans", sans-serif;
  color: var(--ink);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

p { margin: 0; }

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

/* ── Scroll progress bar ── */
.scroll-progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: 2px;
  background: transparent;
}

.scroll-progress-bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--blue));
  transition: width 100ms linear;
}

/* ── Page shell ── */
.page-shell {
  position: relative;
}

/* ── Reveal animation (added by script.js) ── */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 420ms ease, transform 420ms ease;
  transition-delay: var(--reveal-delay, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Fading transition for interactive content swaps ── */
.is-fading {
  opacity: 0;
  transition: opacity 120ms ease;
}

/* ── Header hide on scroll ── */
.site-header.is-hidden {
  transform: translateY(-100%);
}


/* ── Utility ── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 32px;
  height: 60px;
  padding: 0 40px;
  background: rgba(250, 247, 242, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  transition: transform 240ms ease;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--dark);
  border-radius: 6px;
}

.brand-mark-core {
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 2px;
}

.brand-text {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0 auto;
}

.site-nav a {
  padding: 6px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  border-radius: var(--radius-xs);
  transition: color var(--transition), background var(--transition);
}

.site-nav a:hover {
  color: var(--ink);
  background: rgba(0, 0, 0, 0.04);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  margin-left: auto;
}

/* Nav toggle (mobile) */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-xs);
  margin-left: auto;
}

/* ── Language control ── */
.language-control {
  display: flex;
  align-items: center;
  gap: 6px;
}

.language-origin {
  font-size: 11px;
  color: var(--muted-light);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.language-select {
  height: 30px;
  padding: 0 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: border-color var(--transition);
  appearance: none;
}

.language-select:hover {
  border-color: rgba(0, 0, 0, 0.2);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 38px;
  padding: 0 18px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.01em;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
  white-space: nowrap;
  cursor: pointer;
}

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

.button-solid:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  box-shadow: 0 2px 8px rgba(255, 127, 54, 0.32);
  transform: translateY(-1px);
}

.button-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line-strong);
}

.button-ghost:hover {
  background: rgba(0, 0, 0, 0.04);
  border-color: rgba(0, 0, 0, 0.18);
}

/* Large hero buttons */
.hero-actions .button {
  height: 44px;
  padding: 0 24px;
  font-size: 14px;
}

/* ============================================================
   MINI KICKER / LABELS
   ============================================================ */
.mini-kicker {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 72px 40px 48px;
  min-height: 92vh;
}

.hero-copy {
  max-width: 560px;
}

.hero-copy h1 {
  font-size: clamp(40px, 4.5vw, 60px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 20px;
}

.hero-text {
  font-size: 17px;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* Hero visual */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Orbs — very subtle, barely visible */
.orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(60px);
  opacity: 0.18;
}

.orb-left {
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(255, 127, 54, 0.5), transparent 70%);
  top: -40px;
  left: -60px;
}

.orb-right {
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(75, 125, 255, 0.5), transparent 70%);
  bottom: -20px;
  right: -40px;
}

/* ── App frame mockup ── */
.app-frame {
  width: 100%;
  max-width: 780px;
  background: var(--dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 60px 120px rgba(0,0,0,0.26), 0 24px 48px rgba(0,0,0,0.18), 0 8px 16px rgba(0,0,0,0.12), 0 0 0 1px rgba(255, 255, 255, 0.06);
  position: relative;
  z-index: 1;
  transform: perspective(1200px) rotateY(-2deg) rotateX(2deg);
}

.app-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: #111;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.toolbar-dots {
  display: flex;
  gap: 5px;
  flex-shrink: 0;
}

.toolbar-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
}

.toolbar-dots span:nth-child(1) { background: #ff5f56; }
.toolbar-dots span:nth-child(2) { background: #ffbd2e; }
.toolbar-dots span:nth-child(3) { background: #27c93f; }

.toolbar-search {
  flex: 1;
  font-family: ui-monospace, monospace;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.06);
  padding: 4px 10px;
  border-radius: 4px;
}

.toolbar-chip {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: #27c93f;
  background: rgba(39, 201, 63, 0.12);
  padding: 3px 8px;
  border-radius: 4px;
  flex-shrink: 0;
}

.app-body {
  display: flex;
  height: 400px;
  overflow: hidden;
}

/* App sidebar */
.app-sidebar {
  width: 160px;
  flex-shrink: 0;
  background: #111;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  padding: 16px 0;
  overflow-y: auto;
}

.sidebar-group {
  padding: 0 12px 16px;
}

.sidebar-label {
  display: block;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.3);
  margin-bottom: 8px;
  padding: 0 4px;
}

.sidebar-item {
  display: block;
  width: 100%;
  text-align: left;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  padding: 6px 8px;
  border-radius: 6px;
  margin-bottom: 2px;
  transition: background var(--transition), color var(--transition);
}

.sidebar-item:hover {
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.8);
}

.sidebar-item.is-active {
  background: rgba(255, 127, 54, 0.15);
  color: var(--accent);
}

.sidebar-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  padding: 10px;
  margin-top: 8px;
}

.sidebar-card strong {
  display: block;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 2px;
}

.sidebar-card span {
  display: block;
  font-size: 10px;
  color: rgba(255, 255, 255, 0.35);
}

/* App main */
.app-main {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: rgba(255, 255, 255, 0.03);
}

/* Panels */
.panel {
  padding: 16px;
}

.panel-overview {
  flex-shrink: 0;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.panel-kicker {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.3);
}

.panel-status {
  font-size: 10px;
  color: var(--accent);
  background: rgba(255, 127, 54, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
}

.overview-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.flow-row {
  display: flex;
  gap: 4px; /* tighter gap to support 6 items */
  flex-wrap: wrap;
}

.flow-node {
  flex: 1;
  min-width: 0;
  padding: 6px 6px 5px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 8px;
  text-align: left;
  transition: background var(--transition), border-color var(--transition);
  cursor: pointer;
}

.flow-node:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.12);
}

.flow-node.is-active {
  background: rgba(255, 127, 54, 0.1);
  border-color: rgba(255, 127, 54, 0.25);
}

.flow-index {
  display: block;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.25);
  margin-bottom: 3px;
}

.flow-node.is-active .flow-index {
  color: var(--accent);
}

.node-title {
  display: block;
  font-size: 10px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 2px;
}

.node-copy {
  display: block;
  font-size: 9px;
  color: rgba(255, 255, 255, 0.3);
}

/* Flow detail */
.flow-detail {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 8px;
  padding: 12px;
}

.flow-detail .mini-kicker {
  color: var(--accent);
  font-size: 9px;
}

.flow-detail strong {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
  margin: 4px 0;
}

.flow-detail p {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.4);
  line-height: 1.5;
}

.flow-detail-meta {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.flow-detail-meta span {
  font-size: 10px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 7px;
  border-radius: 4px;
}

/* Panel grid */
.panel-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 6px;
  background: transparent;
}

.insight-card,
.execution-card,
.evidence-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 8px;
  padding: 12px;
}

.insight-card .mini-kicker,
.execution-card .mini-kicker,
.evidence-card .mini-kicker {
  font-size: 9px;
}

.insight-card strong {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  margin: 4px 0;
}

.insight-card p {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.35);
  line-height: 1.5;
}

/* Execution card */
.execution-card {
  grid-column: span 2;
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.terminal-header span:last-child {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.25);
}

.execution-lines {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.execution-lines span {
  font-family: ui-monospace, monospace;
  font-size: 10px;
  color: #27c93f;
  background: rgba(39, 201, 63, 0.08);
  padding: 2px 8px;
  border-radius: 4px;
}

/* Evidence card */
.evidence-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 6px;
}

.evidence-list span {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.4);
  padding: 4px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.evidence-list span:last-child {
  border-bottom: none;
}

/* Floating cards */
.floating-card {
  position: absolute;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-md);
  padding: 14px 16px 14px 14px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(8px);
  max-width: 260px;
  z-index: 2;
}

.floating-card .mini-kicker {
  font-size: 9px;
  margin-bottom: 4px;
}

.floating-card strong {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 2px;
  line-height: 1.3;
}

.floating-card p {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.4;
}

.floating-card-top {
  top: -20px;
  right: -40px;
  min-width: 240px;
}

.floating-card-bottom {
  bottom: -20px;
  left: -40px;
  min-width: 220px;
}

/* ============================================================
   SIGNAL STRIP
   ============================================================ */
.signal-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.signal-card {
  background: var(--bg);
  padding: 28px 32px;
  transition: background var(--transition);
}

.signal-card:hover {
  background: var(--bg-soft);
}

.signal-title {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.signal-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  max-width: 280px;
}

/* ============================================================
   SECTION HEADING (shared)
   ============================================================ */
.section-heading {
  max-width: var(--max-width);
  margin: 0 auto 40px;
  padding: 0 24px 28px;
}

.section-heading h2 {
  font-size: 34px;
  font-weight: 700;
  color: var(--ink);
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.section-subtitle {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.6;
  max-width: 640px;
  margin: 12px auto 0;
  text-align: center;
}

/* ============================================================
   FEATURE BANDS
   ============================================================ */
.feature-band {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 56px 40px;
}

.feature-band-reverse {
  direction: rtl;
}

.feature-band-reverse > * {
  direction: ltr;
}

.feature-copy h2 {
  font-size: clamp(24px, 2.5vw, 36px);
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 16px;
  max-width: 480px;
}

.feature-copy p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
  max-width: 460px;
  margin-bottom: 24px;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.5;
}

.feature-list li::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 8px;
}

.feature-band-product-cta {
  margin-top: 0;
}

/* Product stage state card */
.product-stage-state {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.product-stage-head {
  margin-bottom: 10px;
}

.product-stage-kicker {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.product-stage-state p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 12px;
}

.feature-list-dynamic li {
  font-size: 13px;
}

/* ── Arch map visual ── */
.feature-visual {
  position: relative;
  flex: 1;
  min-width: 0;
}

.feature-visual-map {
  background: var(--dark);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2), 0 8px 24px rgba(0,0,0,0.15);
  overflow: hidden;
}

.arch-map {
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
  min-height: 380px;
}

.arch-progress {
  height: 2px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
  margin-bottom: 16px;
  overflow: hidden;
}

.arch-progress-bar {
  display: block;
  height: 100%;
  width: 20%;
  background: linear-gradient(90deg, var(--accent), var(--blue));
  border-radius: 2px;
  transition: width 600ms ease;
}

.arch-row {
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.03);
  transition: background var(--transition), border-color var(--transition);
}

.arch-row.is-active {
  background: rgba(255, 127, 54, 0.1);
  border-color: rgba(255, 127, 54, 0.2);
}

.arch-row-title {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 6px;
}

.arch-row.is-active .arch-row-title {
  color: var(--accent);
}

.arch-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.arch-tags span {
  font-family: ui-monospace, monospace;
  font-size: 10px;
  color: rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 8px;
  border-radius: 4px;
}

.arch-row-infra {
  border-color: rgba(75, 125, 255, 0.15);
  background: rgba(75, 125, 255, 0.05);
}

/* ── Sequence card visual ── */
.feature-visual-sequence {
  display: flex;
  align-items: center;
  justify-content: center;
}

.sequence-card {
  background: var(--dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  width: 100%;
  min-height: 300px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2), 0 8px 24px rgba(0,0,0,0.15);
}

.sequence-step {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
  padding: 18px 24px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background var(--transition);
  cursor: pointer;
}

.sequence-step:last-child {
  border-bottom: none;
}

.sequence-step:hover {
  background: rgba(255, 255, 255, 0.04);
}

.sequence-step.is-current {
  background: rgba(255, 127, 54, 0.08);
  border-left: 2px solid var(--accent);
}

.sequence-step span {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.3);
}

.sequence-step.is-current span {
  color: var(--accent);
}

.sequence-step strong {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
}

/* ── Terminal evidence card ── */
.feature-visual-terminal {
  display: flex;
  align-items: flex-start;
}

.terminal-evidence-card {
  background: var(--dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  width: 100%;
  max-width: none;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2), 0 8px 24px rgba(0,0,0,0.15);
}

.terminal-evidence-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: #111;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.terminal-evidence-dots {
  display: flex;
  gap: 5px;
}

.terminal-evidence-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.terminal-evidence-dots span:nth-child(1) { background: #ff5f56; }
.terminal-evidence-dots span:nth-child(2) { background: #ffbd2e; }
.terminal-evidence-dots span:nth-child(3) { background: #27c93f; }

.terminal-evidence-title {
  font-family: ui-monospace, monospace;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.35);
}

.terminal-evidence-log {
  margin: 0;
  padding: 16px;
  font-family: ui-monospace, "Cascadia Code", "Fira Code", monospace;
  font-size: 11px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.55);
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.terminal-evidence-log code {
  font-family: inherit;
}

/* Evidence summary overlay card */
.feature-visual-terminal {
  position: relative;
}

.evidence-summary-card {
  position: absolute;
  bottom: -20px;
  right: -24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  box-shadow: var(--shadow-lg);
  z-index: 2;
  min-width: 200px;
}

.evidence-summary-card .mini-kicker {
  margin-bottom: 10px;
}

.evidence-summary-items {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.evidence-summary-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 500;
  color: var(--ink);
}

.evidence-summary-status {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(34, 197, 94, 0.12);
  color: #22c55e;
  font-size: 10px;
  font-weight: 700;
  flex-shrink: 0;
}

/* Architecture copy section */
.architecture-copy {
  direction: ltr;
}

/* ============================================================
   STACK SECTION / TOOL CAROUSEL
   ============================================================ */
.stack-section {
  padding: 48px 0;
  overflow: hidden;
  background: var(--bg);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stack-section .section-heading {
  text-align: center;
}

.stack-section .section-heading h2 {
  margin: 0 auto;
}

.tool-carousel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}

.tool-lane {
  display: flex;
  gap: 10px;
  width: max-content;
}

.tool-lane span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 24px;
  white-space: nowrap;
  flex-shrink: 0;
}

.tool-lane span i {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
  font-style: normal;
}

.lane-forward {
  animation: scroll-forward 30s linear infinite;
}

.lane-reverse {
  animation: scroll-reverse 35s linear infinite;
}

@keyframes scroll-forward {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@keyframes scroll-reverse {
  from { transform: translateX(-50%); }
  to { transform: translateX(0); }
}

/* ============================================================
   CAPABILITIES GRID
   ============================================================ */
/* Full-width background wrapper — max-width is on inner content */
.capabilities {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.capabilities > .section-heading,
.capabilities > .capability-grid {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 40px;
  padding-right: 40px;
}

.capabilities > .section-heading {
  padding-top: 56px;
  padding-bottom: 0;
  margin-bottom: 32px;
}

.capabilities > .capability-grid {
  padding-bottom: 56px;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.capability-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8), 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.capability-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 20%;
  right: 20%;
  height: 2px;
  background: var(--accent);
  border-radius: 0 0 2px 2px;
  opacity: 0.45;
  transition: opacity var(--transition), left var(--transition), right var(--transition);
}

.capability-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.8);
  border-color: rgba(0, 0, 0, 0.1);
}

.capability-card:hover::before {
  opacity: 0.75;
  left: 12%;
  right: 12%;
}

.capability-card .mini-kicker {
  margin-bottom: 10px;
}

.capability-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
  line-height: 1.3;
}

.capability-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

/* ============================================================
   ROLES SECTION
   ============================================================ */
.roles-section {
  padding: 56px 40px;
  max-width: var(--max-width);
  margin: 0 auto;
  background: var(--bg);
}

.roles-section .section-heading {
  padding: 0 0 28px;
  max-width: none;
  margin-bottom: 32px;
}

.roles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.role-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.role-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: rgba(255, 127, 54, 0.18);
}

.role-index {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--line-strong);
  margin-bottom: 12px;
  line-height: 1;
}

.role-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
}

.role-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

/* ============================================================
   FAQ SECTION
   ============================================================ */
.faq-section {
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
}

.faq-section > .section-heading,
.faq-section > .faq-list {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 40px;
  padding-right: 40px;
}

.faq-section > .section-heading {
  padding-top: 56px;
  padding-bottom: 0;
}

.faq-section > .faq-list {
  padding-bottom: 56px;
  max-width: 720px;
}

.faq-intro {
  font-size: 15px;
  color: var(--muted);
  margin-top: 12px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-item {
  border-bottom: 1px solid var(--line);
  border-left: 2px solid transparent;
  transition: border-left-color var(--transition);
}

.faq-item:focus-within {
  border-left-color: var(--accent);
}

.faq-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 20px 0;
  text-align: left;
  cursor: pointer;
}

.faq-question {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
}

.faq-icon {
  flex-shrink: 0;
  font-size: 20px;
  font-weight: 300;
  color: var(--muted-light);
  line-height: 1;
  transition: transform var(--transition), color var(--transition);
  width: 20px;
  text-align: center;
}

.faq-item.is-open .faq-icon {
  transform: rotate(45deg);
  color: var(--accent);
}

.faq-content {
  overflow: hidden;
  max-height: 0;
  transition: max-height 300ms ease, padding 300ms ease;
}

.faq-item.is-open .faq-content {
  max-height: 240px;
  padding-bottom: 20px;
}

.faq-content p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--dark);
  padding: 48px 40px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: start;
  gap: 40px;
}

.site-footer .brand {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.brand-footer .brand-text {
  color: rgba(255, 255, 255, 0.85);
}

.brand-footer .brand-mark {
  background: rgba(255, 255, 255, 0.1);
}

.footer-copy {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
  line-height: 1.6;
  max-width: 320px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: rgba(255, 255, 255, 0.8);
}

.footer-meta {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.2);
  padding-top: 4px;
}

/* ============================================================
   FLOATING FABs
   ============================================================ */
.floating-fab {
  position: fixed;
  z-index: 40;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  border-radius: 50%;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition), opacity var(--transition);
}

.floating-fab:hover {
  transform: translateY(-2px);
}

.floating-fab-up {
  bottom: 24px;
  right: 24px;
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
}

.floating-fab-up.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.floating-fab-up:hover {
  background: #333;
  box-shadow: var(--shadow-lg);
}

.floating-fab-chat {
  bottom: 24px;
  right: 72px;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(255, 127, 54, 0.36);
}

.floating-fab-chat:hover {
  background: var(--accent-strong);
  box-shadow: 0 6px 20px rgba(255, 127, 54, 0.45);
}

.chat-floating {
  position: fixed;
  bottom: 24px;
  right: 72px;
  z-index: 40;
}

/* ============================================================
   CHAT WIDGET
   ============================================================ */
.chat-widget {
  position: fixed;
  bottom: 80px;
  right: 24px;
  width: 340px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: 520px;
  z-index: 50;
}

.chat-widget[hidden] {
  display: none;
}

.chat-widget-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
}

.chat-widget-head strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}

.chat-widget-head p {
  font-size: 11px;
  color: var(--muted-light);
  margin-top: 1px;
}

.chat-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--muted);
  border-radius: 6px;
  transition: background var(--transition);
}

.chat-close:hover {
  background: rgba(0, 0, 0, 0.06);
}

.chat-log {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 160px;
}

.chat-status {
  font-size: 11px;
  color: var(--muted-light);
  padding: 0 16px 8px;
  margin: 0;
}

.chat-form {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--line);
}

.chat-form input {
  flex: 1;
  height: 36px;
  padding: 0 12px;
  font-size: 13px;
  color: var(--ink);
  background: var(--bg-soft);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-xs);
  outline: none;
  transition: border-color var(--transition);
}

.chat-form input:focus {
  border-color: var(--accent);
}

.chat-send {
  height: 36px;
  padding: 0 14px;
  font-size: 13px;
}

/* Chat messages appended by script.js */
.chat-message {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  line-height: 1.5;
  max-width: 88%;
  word-break: break-word;
}

.chat-message-user {
  background: var(--accent);
  color: #fff;
  align-self: flex-end;
  margin-left: auto;
}

.chat-message-bot {
  background: var(--bg-soft);
  color: var(--ink);
  border: 1px solid var(--line);
  align-self: flex-start;
}

.chat-message-system {
  background: transparent;
  color: var(--muted-light);
  font-size: 12px;
  text-align: center;
  align-self: center;
  max-width: 100%;
}

/* ============================================================
   RESPONSIVE — 768px
   ============================================================ */
@media (max-width: 768px) {
  /* Header */
  .site-header {
    padding: 0 20px;
    gap: 12px;
    flex-wrap: wrap;
    height: auto;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .site-nav {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    margin: 0;
    padding: 12px 0;
    border-top: 1px solid var(--line);
  }

  .site-header.is-open .site-nav {
    display: flex;
  }

  .site-nav a {
    width: 100%;
    padding: 10px 4px;
  }

  .nav-toggle {
    display: flex;
  }

  .header-actions {
    gap: 6px;
    margin-left: 0;
  }

  .language-origin {
    display: none;
  }

  /* Hero */
  .hero {
    grid-template-columns: 1fr;
    padding: 48px 20px 60px;
    gap: 40px;
    min-height: unset;
  }

  .hero-copy h1 {
    font-size: 36px;
  }

  .hero-text {
    font-size: 15px;
  }

  .floating-card-top,
  .floating-card-bottom {
    display: none;
  }

  .orb { display: none; }

  .app-frame {
    transform: none;
    max-width: 100%;
  }

  /* Signal strip */
  .signal-strip {
    grid-template-columns: 1fr;
  }

  .signal-card {
    padding: 24px 20px;
  }

  /* Feature bands */
  .feature-band {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 48px 20px;
  }

  .feature-band-reverse {
    direction: ltr;
  }

  .section-heading {
    padding: 0 20px 20px;
    margin-bottom: 28px;
  }

  /* Capabilities */
  .capabilities > .section-heading,
  .capabilities > .capability-grid {
    padding-left: 20px;
    padding-right: 20px;
  }

  .capabilities > .section-heading {
    padding-top: 48px;
  }

  .capabilities > .capability-grid {
    padding-bottom: 48px;
  }

  .capability-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Roles */
  .roles-section {
    padding: 48px 20px;
  }

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

  /* FAQ */
  .faq-section > .section-heading,
  .faq-section > .faq-list {
    padding-left: 20px;
    padding-right: 20px;
  }

  .faq-section > .section-heading {
    padding-top: 48px;
  }

  .faq-section > .faq-list {
    padding-bottom: 48px;
  }

  /* Footer */
  .site-footer {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 40px 20px;
  }

  .footer-links {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 16px;
  }

  /* FABs */
  .floating-fab-chat {
    right: 72px;
  }

  /* Chat widget */
  .chat-widget {
    width: calc(100vw - 32px);
    right: 16px;
  }
}

/* ============================================================
   RESPONSIVE — 480px
   ============================================================ */
@media (max-width: 480px) {
  .hero-copy h1 {
    font-size: 30px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .button {
    width: 100%;
    justify-content: center;
  }

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

  .app-body {
    height: 280px;
  }

  .app-sidebar {
    width: 120px;
  }

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

  .execution-card {
    grid-column: span 1;
  }

  .tool-lane span {
    padding: 6px 12px;
    font-size: 12px;
  }

  .faq-question {
    font-size: 14px;
  }
}

/* ============================================================
   FOCUS STYLES (accessibility)
   ============================================================ */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

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

/* ============================================================
   HOW IT WORKS — PIPELINE SECTION
   ============================================================ */
.how-it-works {
  padding: 48px 0;
  overflow: hidden;
  background: var(--bg-soft);
}

.how-it-works .section-heading {
  text-align: center;
}

.how-it-works .section-heading h2,
.how-it-works .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* ── Pipeline — connected node track ── */
.pipeline {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 24px 48px;
  position: relative;
}

.pipeline-track {
  position: absolute;
  top: 42px;
  left: 8%;
  right: 8%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--blue) 50%, var(--accent));
  border-radius: 2px;
  opacity: 0.35;
}

.pipeline-node {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 1;
  padding: 0 8px;
}

.pipeline-dot {
  display: block;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--line-strong);
  margin-bottom: 12px;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.pipeline-node.is-active .pipeline-dot {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.pipeline-node .pipeline-index {
  display: block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--muted-light);
  margin-bottom: 6px;
}

.pipeline-node.is-active .pipeline-index {
  color: var(--accent);
}

.pipeline-node h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 4px;
}

.pipeline-node p {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.45;
  max-width: 150px;
}

/* ============================================================
   ENTERPRISE TRUST SECTION
   ============================================================ */
.enterprise-trust {
  background: var(--dark);
  color: #f0f0f0;
  padding: 48px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  position: relative;
}

.enterprise-trust::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 320px;
  background: radial-gradient(ellipse 60% 40% at 50% 0%, rgba(255, 127, 54, 0.06) 0%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}

.enterprise-trust > * {
  position: relative;
  z-index: 1;
}

.enterprise-trust .section-heading {
  text-align: center;
}

.enterprise-trust .section-heading h2 {
  margin-left: auto;
  margin-right: auto;
  color: #f0f0f0;
}

.enterprise-trust .section-subtitle {
  margin-left: auto;
  margin-right: auto;
  color: #9b9490;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.trust-card {
  background: var(--dark-surface);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-md);
  padding: 24px 24px 24px 28px;
  position: relative;
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}

.trust-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 3px;
  background: var(--accent);
  border-radius: 0 2px 2px 0;
  opacity: 0.6;
}

.trust-card:hover {
  transform: translateY(-2px) scale(1.01);
  box-shadow: 0 12px 40px rgba(0,0,0,0.36), 0 4px 12px rgba(0,0,0,0.2);
  border-color: rgba(255,255,255,0.15);
}

.trust-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255, 127, 54, 0.12);
  color: var(--accent);
  font-size: 16px;
  margin-bottom: 12px;
  flex-shrink: 0;
}

.trust-card h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
  color: #f0f0f0;
}

.trust-card p {
  font-size: 13px;
  color: #9b9490;
  line-height: 1.5;
}

/* ============================================================
   AI EXPLAINER SECTION
   ============================================================ */
.ai-explainer {
  padding: 48px 0;
  background: var(--bg-soft);
}

.ai-explainer .section-heading {
  text-align: center;
}

.ai-explainer .section-heading h2,
.ai-explainer .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

.ai-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 40px;
}

.ai-col {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
}

.ai-does {
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-top: 3px solid #22c55e;
}

.ai-doesnt {
  border: 1px solid rgba(255, 127, 54, 0.2);
  border-top: 3px solid var(--accent);
}

.ai-col h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 8px;
}

.ai-does h3::before {
  content: '✓';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(34, 197, 94, 0.12);
  color: #22c55e;
  font-size: 13px;
  flex-shrink: 0;
}

.ai-doesnt h3::before {
  content: '✕';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255, 127, 54, 0.12);
  color: var(--accent);
  font-size: 13px;
  flex-shrink: 0;
}

.ai-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.ai-col li {
  padding: 10px 0 10px 28px;
  font-size: 14px;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  position: relative;
  line-height: 1.5;
}

.ai-does li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #22c55e;
  font-weight: 600;
}

.ai-doesnt li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 600;
}

.ai-col li:last-child {
  border-bottom: none;
}

/* ============================================================
   STACK CATEGORIES (grouped tool chips)
   ============================================================ */
.stack-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  max-width: var(--max-width);
  margin: 0 auto 32px;
  padding: 0 24px;
}

.stack-category {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 20px;
}

.stack-category-label {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.stack-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.stack-chips span {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-xs);
  padding: 4px 10px;
  font-size: 12px;
  color: var(--ink);
  font-weight: 500;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.stack-chips span:hover {
  border-color: rgba(0, 0, 0, 0.14);
  box-shadow: var(--shadow-sm);
}

/* Stack operational flow — 3-column visual */
.stack-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto 32px;
  padding: 0 24px;
}

.stack-flow-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.stack-flow-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-light);
  margin-bottom: 4px;
}

.stack-flow-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.stack-flow-chips span {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-xs);
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
}

.stack-flow-chips-output span {
  background: var(--accent-soft);
  border-color: rgba(255, 127, 54, 0.2);
  color: var(--accent-strong);
  font-weight: 600;
}

.stack-flow-center {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 20px;
}

.stack-flow-arrow {
  font-size: 20px;
  color: var(--accent);
  font-weight: 700;
  opacity: 0.5;
}

.stack-flow-core {
  background: var(--dark);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  min-width: 180px;
}

.stack-flow-core-label {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.01em;
}

.stack-flow-core-sub {
  display: block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 2px;
  margin-bottom: 12px;
}

.stack-flow-core-items {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stack-flow-core-items span {
  font-size: 11px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.6);
  padding: 3px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.stack-flow-core-items span:last-child {
  border-bottom: none;
}

/* ============================================================
   SECTION GRADIENT SEPARATOR
   ============================================================ */
.section-separator {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong) 20%, var(--line-strong) 80%, transparent);
  margin: 0;
  border: 0;
}

/* ============================================================
   RESPONSIVE — 1024px
   ============================================================ */
@media (max-width: 1024px) {
  .pipeline {
    gap: 0;
    padding: 0 16px 40px;
  }

  .pipeline-node {
    padding: 0 4px;
  }
}

/* ============================================================
   RESPONSIVE — 768px (new sections)
   ============================================================ */
@media (max-width: 768px) {
  /* Pipeline — vertical timeline */
  .pipeline {
    flex-direction: column;
    align-items: center;
    padding: 0 20px 40px;
  }

  .pipeline-track {
    top: 0;
    bottom: 0;
    left: 50%;
    right: auto;
    width: 3px;
    height: 100%;
    transform: translateX(-50%);
  }

  .pipeline-node {
    flex-direction: row;
    text-align: left;
    align-items: flex-start;
    gap: 16px;
    padding: 12px 0;
    width: 100%;
    max-width: 360px;
  }

  .pipeline-dot {
    margin-bottom: 0;
    margin-top: 2px;
    flex-shrink: 0;
  }

  .pipeline-node p {
    max-width: none;
  }

  /* Stack flow — vertical on mobile */
  .stack-flow {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 0 20px;
  }

  .stack-flow-center {
    flex-direction: column;
    padding: 0;
  }

  .stack-flow-arrow {
    transform: rotate(90deg);
  }

  /* Evidence summary — relative on mobile */
  .evidence-summary-card {
    position: relative;
    bottom: auto;
    right: auto;
    margin-top: 16px;
  }

  /* Trust grid — 2 columns */
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
    padding: 0 20px;
  }

  /* AI explainer — single column */
  .ai-columns {
    grid-template-columns: 1fr;
    padding: 0 20px 40px;
  }

  /* Stack categories — label goes full width above chips */
  .stack-category {
    flex-direction: column;
    gap: 10px;
  }

  .stack-category-label {
    flex: none;
  }

  /* Section heading padding adjustment for mobile (already handled above) */

  /* Enterprise trust section */
  .enterprise-trust {
    padding: 48px 0;
  }

  .how-it-works {
    padding: 48px 0;
  }

  .ai-explainer {
    padding: 48px 0;
  }
}

/* ============================================================
   RESPONSIVE — 480px (new sections)
   ============================================================ */
@media (max-width: 480px) {
  /* Trust grid — single column */
  .trust-grid {
    grid-template-columns: 1fr;
  }

  .pipeline-node {
    max-width: 100%;
  }

  .ai-col {
    padding: 24px 20px;
  }

  .stack-categories {
    padding: 0 16px;
  }
}

/* ============================================================
   VISUAL DENSITY OVERRIDES — added for premium density pass
   ============================================================ */

/* Role flow — operational mini-pipeline under each role card */
.role-flow {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  font-weight: 600;
  color: var(--muted-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex-wrap: wrap;
}

.role-flow span:nth-child(even) {
  color: var(--accent);
  font-size: 13px;
}

/* Approval gate card in hero mockup */
.approval-card {
  background: rgba(255, 127, 54, 0.06);
  border: 1px solid rgba(255, 127, 54, 0.2);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 11px;
}

.approval-status {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}

.approval-card strong {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.75);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot-pending {
  background: var(--accent);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.approval-actions-mock {
  display: flex;
  gap: 6px;
  margin-top: 6px;
}

.mock-btn {
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
}

.mock-btn-approve {
  background: rgba(34, 197, 94, 0.15);
  color: #16a34a;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.mock-btn-reject {
  background: rgba(239, 68, 68, 0.08);
  color: #dc2626;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Section contrast: feature-band-product gets white background */
.feature-band-product {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

/* Evidence/terminal band gets a slightly warm toned bg for contrast */
.feature-band-evidence {
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
}

/* Stack categories — responsive for mobile */
@media (max-width: 768px) {
  .stack-categories {
    grid-template-columns: repeat(2, 1fr);
    padding: 0 20px;
  }
}

/* Merged 480px rules: stack-categories + trust-grid + signal-strip mobile */
@media (max-width: 480px) {
  .stack-categories {
    grid-template-columns: 1fr;
    padding: 0 16px;
  }

  /* Trust grid — single column on small phones */
  .trust-grid {
    grid-template-columns: 1fr;
  }

  /* Signal-strip cards get left accent on mobile where layout stacks */
  .signal-card {
    border-left: 3px solid var(--accent);
    padding-left: 20px;
  }
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  .site-header,
  .scroll-progress,
  .floating-fab,
  .chat-floating,
  .orb,
  .tool-carousel {
    display: none !important;
  }
}