/* ══════════════════════════════════════════════════════════════
   SPARK AGENT · agent.sparkswarm.ai
   Continuation of the Sparkswarm brand system
   ══════════════════════════════════════════════════════════════ */

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

:root {
  /* surfaces */
  --bg: #0e1018;
  --bg-subtle: #141820;
  --bg-deep: #0a0c12;
  --surface: #181c26;
  --surface-raised: #1e2230;
  --surface-hi: #232838;

  /* borders */
  --border: #222430;
  --border-strong: #2a2e40;
  --border-bright: #3a3f55;

  /* text */
  --text: #f0f0f4;
  --text-bright: #ffffff;
  --text-secondary: #8890b0;
  --text-tertiary: #6a7080;
  --text-ghost: #506070;
  --text-faint: #3a4050;

  /* accent */
  --accent: #2fca94;
  --accent-hover: #22b884;
  --accent-dim: #1f8c66;
  --accent-fg: #0a3820;
  --accent-subtle: rgba(47, 202, 148, 0.08);
  --accent-mid: rgba(47, 202, 148, 0.18);
  --accent-glow: rgba(47, 202, 148, 0.35);

  /* iris (pro) */
  --iris: #b8a8dc;
  --iris-dim: #6e5ca0;
  --iris-glow: rgba(184, 168, 220, 0.25);

  /* status */
  --status-green: #3ddda4;
  --status-red: #e08878;
  --status-amber: #d8c868;

  /* type */
  --font-sans: "DM Sans", -apple-system, system-ui, sans-serif;
  --font-mono: "DM Mono", "JetBrains Mono", ui-monospace, monospace;

  /* radii */
  --r-xs: 2px;
  --r-sm: 3px;
  --r-md: 5px;
  --r-lg: 6px;
  --r-xl: 10px;

  /* motion */
  --ease: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in: cubic-bezier(0.5, 0, 0.75, 0);
  --ease-out: cubic-bezier(0.25, 1, 0.5, 1);
  --t-fast: 0.15s;
  --t-mid: 0.3s;
  --t-slow: 0.6s;

  /* layout */
  --container: 1320px;
  --side-pad: clamp(24px, 4.5vw, 64px);
}

[data-theme="light"] {
  --bg: #f7f8f5;
  --bg-subtle: #eef2ee;
  --bg-deep: #ffffff;
  --surface: #ffffff;
  --surface-raised: #fcfdfb;
  --surface-hi: #eef4ef;
  --border: #dce4de;
  --border-strong: #c8d4cc;
  --border-bright: #aebeb4;
  --text: #171c18;
  --text-bright: #07110c;
  --text-secondary: #526058;
  --text-tertiary: #748079;
  --text-ghost: #96a099;
  --text-faint: #c8d2cb;
  --accent: #168f68;
  --accent-hover: #0f7c5a;
  --accent-dim: #0f6f50;
  --accent-fg: #ffffff;
  --accent-subtle: rgba(22, 143, 104, 0.09);
  --accent-mid: rgba(22, 143, 104, 0.18);
  --accent-glow: rgba(22, 143, 104, 0.22);
  --iris: #7b679c;
  --iris-dim: #6a578c;
  --iris-glow: rgba(123, 103, 156, 0.18);
  --status-green: #087452;
}

html,
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
html {
  scroll-padding-top: 82px;
}

a {
  color: inherit;
  text-decoration: none;
}
button {
  font-family: inherit;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
}
img,
svg {
  display: block;
  max-width: 100%;
}
.svg-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

/* ══════════════════════════════════════════════════════════════
   GLOBAL DECOR: grain + particles
   ══════════════════════════════════════════════════════════════ */
.grain {
  position: fixed;
  inset: 0;
  z-index: 150;
  pointer-events: none;
  opacity: 0.06;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.7'/></svg>");
}

.bg-particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.7;
}

/* ══════════════════════════════════════════════════════════════
   TOPBAR
   ══════════════════════════════════════════════════════════════ */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 16px var(--side-pad);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid var(--border);
}

/* SPARK BRAND LOCKUP · canonical nav usage (matches sparkswarm.ai + Spawner UI)
   Mark 26 / Wordmark 64 / Gap 8 / 1px x 16px divider / mono slash-tag */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  line-height: 1;
}
.brand-mark {
  color: var(--accent);
  display: block;
  width: 26px;
  height: auto;
  flex-shrink: 0;
  shape-rendering: geometricPrecision;
}
.brand-wordmark {
  color: var(--text);
  display: block;
  width: 64px;
  height: auto;
  flex-shrink: 0;
  shape-rendering: geometricPrecision;
}
.brand-divider {
  display: inline-block;
  width: 1px;
  height: 16px;
  background: var(--border-strong);
  opacity: 0.8;
  flex-shrink: 0;
}
.brand-slash {
  display: inline-flex;
  align-items: center;
  font: 500 11px var(--font-mono);
  letter-spacing: 0.02em;
  color: color-mix(in srgb, var(--text-secondary) 90%, transparent);
  text-transform: lowercase;
  flex-shrink: 0;
  line-height: 1;
}
.brand-slash-prefix {
  color: var(--accent);
  margin-right: 0;
}

.topnav {
  display: flex;
  gap: 22px;
  margin-left: 12px;
}
.topnav a {
  font: 500 13px var(--font-sans);
  color: var(--text-tertiary);
  letter-spacing: -0.1px;
  position: relative;
  transition: color var(--t-fast) var(--ease);
}
.topnav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--t-fast) var(--ease);
}
.topnav a:hover {
  color: var(--text);
}
.topnav a:hover::after {
  width: 100%;
}

.topbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.topbar-ecosystem {
  display: flex;
  align-items: center;
  gap: 18px;
  padding-right: 16px;
  margin-right: 2px;
  border-right: 1px solid var(--border);
}
.topbar-ecosystem a {
  font: 500 11px var(--font-mono);
  color: var(--text-tertiary);
  letter-spacing: 1.2px;
  text-transform: uppercase;
  transition: color var(--t-fast);
}
.topbar-ecosystem a:hover {
  color: var(--accent);
}

.topbar-docs {
  padding: 9px 10px;
  color: var(--text-secondary);
  font: 600 12px var(--font-sans);
  transition: color var(--t-fast), border-color var(--t-fast);
}
.topbar-docs:hover {
  color: var(--accent);
}

.subdomain-switcher {
  position: relative;
}
.sd-current {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  font: 500 12px var(--font-mono);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg-subtle);
  transition: border-color var(--t-fast) var(--ease);
  letter-spacing: 0.3px;
}
.sd-current span {
  color: var(--text-ghost);
}
.sd-current i {
  color: var(--text-tertiary);
  font-style: normal;
  margin-left: 2px;
}
.sd-current:hover {
  border-color: var(--accent);
}
.sd-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 240px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--t-fast), visibility var(--t-fast),
    transform var(--t-fast);
  z-index: 120;
  box-shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
}
.subdomain-switcher:hover .sd-menu,
.subdomain-switcher:focus-within .sd-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.sd-menu a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 10px;
  font: 500 12px var(--font-mono);
  color: var(--text);
  border-radius: var(--r-sm);
  transition: background var(--t-fast);
  letter-spacing: 0.3px;
}
.sd-menu a span {
  color: var(--text-ghost);
  font: 400 11px var(--font-mono);
  text-transform: lowercase;
}
.sd-menu a:hover {
  background: var(--surface-hi);
  color: var(--accent);
}
.sd-menu a.is-active {
  color: var(--accent);
  background: var(--accent-subtle);
}

.theme-toggle {
  width: 34px;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  color: var(--text-tertiary);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--t-fast), color var(--t-fast);
}
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.cta-install {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  background: var(--accent);
  color: var(--accent-fg);
  font: 600 13px var(--font-sans);
  letter-spacing: -0.1px;
  border-radius: var(--r-md);
  transition: background var(--t-fast), transform var(--t-fast);
}
.cta-install:hover {
  background: var(--accent-hover);
}
.cta-arrow {
  transition: transform var(--t-fast);
}
.cta-install:hover .cta-arrow {
  transform: translateX(3px);
}

/* ══════════════════════════════════════════════════════════════
   SECTION BASE
   ══════════════════════════════════════════════════════════════ */
.section {
  position: relative;
  padding: clamp(80px, 10vw, 160px) var(--side-pad);
  max-width: var(--container);
  margin: 0 auto;
  z-index: 1;
  scroll-margin-top: 82px;
}
.section-head {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 40px;
  margin-bottom: 72px;
  align-items: start;
}
.section-head.right {
  direction: rtl;
}
.section-head.right > * {
  direction: ltr;
}
.section-head.center {
  grid-template-columns: 1fr;
  text-align: center;
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 72px;
}
.section-head.center .num {
  display: block;
  margin: 0 auto 20px;
}
.num {
  font: 500 12px var(--font-mono);
  color: var(--accent);
  letter-spacing: 2px;
  padding-top: 14px;
  font-variant-numeric: tabular-nums;
}
.section-title {
  font: 500 clamp(40px, 6vw, 84px) var(--font-sans);
  letter-spacing: -0.04em;
  line-height: 1.02;
  color: var(--text);
  max-width: 22ch;
}
.section-title i {
  font-style: italic;
  color: var(--accent);
  font-weight: 400;
}
.section-lead {
  grid-column: 2;
  margin-top: 28px;
  max-width: 640px;
  font: 400 18px var(--font-sans);
  color: var(--text-secondary);
  line-height: 1.65;
}
.section-head.center .section-lead {
  grid-column: auto;
  margin-left: auto;
  margin-right: auto;
}

/* reveal on scroll */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ══════════════════════════════════════════════════════════════
   001 / HERO v6 · OPERATOR (SPARK.md-compliant)
   ══════════════════════════════════════════════════════════════ */
.hero {
  position: relative;
  padding: calc(96px + 56px) var(--side-pad) 96px;
  max-width: 100%;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  align-items: center;
  z-index: 2;
  overflow: hidden;
}

/* canvas kept in DOM but hidden · background is now a CSS dot field */
.hero-field {
  display: none;
}

/* SPARK signature · dotted dark field behind the whole page */
body {
  background-image: radial-gradient(
      circle at 50% 10%,
      rgba(47, 202, 148, 0.05),
      transparent 55%
    ),
    radial-gradient(circle, var(--border-strong) 1px, transparent 1px);
  background-size: 100% 100%, 28px 28px;
  background-position: 0 0, 0 0;
  background-attachment: fixed, fixed;
}

/* shared keyframes */
@keyframes pulseDot {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
    transform: scale(0.7);
  }
}
@keyframes fadeIn {
  to {
    opacity: 1;
    transform: none;
  }
}

/* two-column grid · promise + live specimen */
.hero-grid {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 460px);
  gap: clamp(40px, 5vw, 72px);
  align-items: center;
}

/* ═══════ LEFT · the promise ═══════ */
.hero-left {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: flex-start;
  text-align: left;
  max-width: 640px;
}

.overline {
  display: inline-block;
  font: 600 10px var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-ghost);
}
.hero-overline {
  color: var(--text-tertiary);
  opacity: 0;
  animation: fadeIn 0.5s var(--ease) forwards;
  animation-delay: 0.4s;
}

.hero-title {
  font: 600 clamp(26px, 2.9vw, 38px) var(--font-sans);
  letter-spacing: -0.02em;
  line-height: 1.08;
  color: var(--text);
  margin: 0;
  max-width: 16.5em;
  text-wrap: balance;
  opacity: 0;
  transform: translateY(8px);
  animation: fadeIn 0.6s var(--ease) forwards;
  animation-delay: 0.55s;
}
.hero-title span {
  display: block;
}
.hero-title em {
  font-style: italic;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: -0.015em;
}

.hero-lead {
  font: 400 15px var(--font-sans);
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 58ch;
  margin: 0;
  opacity: 0;
  transform: translateY(8px);
  animation: fadeIn 0.6s var(--ease) forwards;
  animation-delay: 0.75s;
}
.hero-lead strong {
  color: var(--text-bright);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

/* CTAs · match SPARK.md button specs */
.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  opacity: 0;
  animation: fadeIn 0.6s var(--ease) forwards;
  animation-delay: 1.05s;
}
.cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  background: var(--accent);
  color: var(--accent-fg);
  border: none;
  border-radius: var(--r-md);
  font: 600 15px var(--font-sans);
  letter-spacing: -0.01em;
  transition: background var(--t-fast), transform var(--t-fast);
  cursor: pointer;
  box-shadow: 0 6px 24px rgba(47, 202, 148, 0.25);
}
.cta-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 10px 30px rgba(47, 202, 148, 0.35);
}
.cta-cmd {
  font-weight: 600;
}
.cta-arrow {
  font: 500 16px var(--font-sans);
  transition: transform var(--t-fast);
}
.cta-primary:hover .cta-arrow {
  transform: translateX(3px);
}

.cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--surface-raised);
  color: var(--text-bright);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  font: 500 13px var(--font-sans);
  transition: border-color var(--t-fast);
}
.cta-secondary:hover {
  border-color: var(--accent);
}
.cta-secondary .arrow {
  transition: transform var(--t-fast);
}
.cta-secondary:hover .arrow {
  transform: translateY(2px);
}

.hero-proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  width: min(100%, 560px);
  opacity: 0;
  animation: fadeIn 0.6s var(--ease) forwards;
  animation-delay: 1.15s;
}
.hero-proof-strip span {
  min-width: 0;
  padding: 10px 11px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: color-mix(in srgb, var(--surface) 62%, transparent);
  color: var(--text-tertiary);
  font: 500 11px var(--font-mono);
  letter-spacing: 0.2px;
  text-align: center;
}
.hero-proof-strip strong {
  display: block;
  margin-bottom: 2px;
  color: var(--accent);
  font: 600 14px var(--font-mono);
}

.hero-fineprint {
  font: 500 11px var(--font-mono);
  color: var(--text-ghost);
  letter-spacing: 0.4px;
  margin: 0;
  opacity: 0;
  animation: fadeIn 0.6s var(--ease) forwards;
  animation-delay: 1.2s;
}

/* ═══════ RIGHT · spec card (operator surface) ═══════ */
.hero-spec {
  position: relative;
  z-index: 2;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  opacity: 0;
  transform: translateY(12px);
  animation: fadeIn 0.7s var(--ease) forwards;
  animation-delay: 0.7s;
}

.story-rail {
  display: none;
}

/* card header */
.spec-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

/* Spark cursor-blocks brand mark */
.cursor-blocks {
  display: inline-flex;
  align-items: flex-end;
  gap: 3px;
  flex: 0 0 auto;
}
.cb-block {
  width: 6px;
  border-radius: 1px;
  background: var(--accent);
  animation: cbPulse 1.8s ease-in-out infinite;
}
.cb-block:nth-child(2) {
  animation-delay: 0.18s;
}
.cb-block:nth-child(3) {
  animation-delay: 0.36s;
}
@keyframes cbPulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.45;
  }
}

/* recursive loop strip · mechanism made visible */
.spec-loop {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg-subtle);
}
.sl-overline {
  color: var(--text-ghost);
}
.sl-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;
}
.sl-steps li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: 500 11px var(--font-mono);
  color: var(--text-ghost);
  letter-spacing: 0.2px;
  transition: color 0.25s var(--ease);
  position: relative;
  flex: 0 0 auto;
}
.sl-steps li:not(:last-child)::after {
  content: "→";
  margin-left: 8px;
  color: var(--text-faint);
  font-weight: 400;
}
.sl-steps li.active {
  color: var(--accent);
}
.sl-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--border-strong);
  flex: 0 0 5px;
  transition: background 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.sl-steps li.active .sl-dot {
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}
.sl-count {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}
.sl-count-k {
  font: 500 10px var(--font-mono);
  color: var(--text-ghost);
  letter-spacing: 0.4px;
  text-transform: uppercase;
}
.sl-count-v {
  font: 500 13px var(--font-mono);
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.2px;
}

.spec-runlog {
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: linear-gradient(
      180deg,
      color-mix(in srgb, var(--surface-hi) 28%, transparent),
      transparent
    ),
    var(--bg-deep);
  overflow: hidden;
}
.spec-runlog-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.runlog-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: 500 10px var(--font-mono);
  color: var(--accent);
  letter-spacing: 0.4px;
  text-transform: lowercase;
}
.runlog-status i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}
.runlog-list {
  list-style: none;
  display: grid;
}
.runlog-list li {
  display: block;
  padding: 9px 12px;
  border-top: 1px solid color-mix(in srgb, var(--border) 72%, transparent);
  color: var(--text-tertiary);
  font: 400 11px var(--font-mono);
  letter-spacing: 0.1px;
  transition: background 0.25s var(--ease), color 0.25s var(--ease);
}
.runlog-list li:first-child {
  border-top: none;
}
.runlog-list li span {
  display: inline-block;
  width: 42px;
  color: var(--text-ghost);
  font-variant-numeric: tabular-nums;
}
.runlog-list li strong {
  display: inline;
  color: var(--text-secondary);
  font-weight: 500;
}
.runlog-list li.active {
  color: var(--text);
  background: var(--accent-subtle);
}
.runlog-list li.active strong {
  color: var(--accent);
}

.spec-head-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.spec-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.spec-name {
  font: 500 15px var(--font-mono);
  color: var(--text);
  letter-spacing: 0.1px;
}

/* slash-tag · Spark signature */
.slash-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font: 500 10px var(--font-mono);
  color: var(--accent);
  background: var(--accent-subtle);
  padding: 3px 7px;
  border: 1px solid var(--accent-mid);
  border-radius: var(--r-sm);
  letter-spacing: 0.3px;
  text-transform: lowercase;
}
.st-pulse {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulseDot 1.8s ease-in-out infinite;
}

.spec-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font: 500 11px var(--font-mono);
  color: var(--text-tertiary);
  letter-spacing: 0.3px;
  font-variant-numeric: tabular-nums;
}
.spec-owner {
  color: var(--text-ghost);
}
.spec-sep {
  color: var(--text-faint);
}
.spec-v {
  color: var(--text-bright);
  font-weight: 500;
  transition: color 0.25s var(--ease);
}
.spec-v.pulse {
  color: var(--accent);
}
.spec-arrow {
  color: var(--text-faint);
  transition: transform 0.3s var(--ease);
}
.spec-v-next {
  color: var(--accent);
  font-weight: 500;
}
.spec-meta.tick .spec-arrow {
  transform: translateX(3px);
}

/* spec sections */
.spec-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.spec-section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.spec-section-hint {
  font: 500 10px var(--font-mono);
  color: var(--text-ghost);
  letter-spacing: 0.4px;
}

/* masteries */
.spec-masteries {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.mastery {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.mastery-fill-78 {
  --fill: 78%;
}
.mastery-fill-62 {
  --fill: 62%;
}
.mastery-fill-54 {
  --fill: 54%;
}
.m-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
}
.m-name {
  font: 500 12px var(--font-mono);
  color: var(--text-bright);
  letter-spacing: 0.1px;
}
.m-ver {
  font: 500 11px var(--font-mono);
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
}
.m-ver em {
  color: var(--accent);
  font-style: normal;
  margin-left: 4px;
}
.m-ver em.new {
  color: var(--iris);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 10px;
}
.m-bar {
  position: relative;
  height: 3px;
  border-radius: 1px;
  background: var(--bg-subtle);
  overflow: hidden;
}
.m-fill {
  position: absolute;
  inset: 0;
  width: 0;
  background: var(--accent);
  border-radius: 1px;
  transition: width 0.9s cubic-bezier(0.23, 1, 0.32, 1);
}
.mastery.is-filled .m-fill {
  width: var(--fill);
}
.m-meta {
  display: flex;
  justify-content: space-between;
  font: 400 10px var(--font-mono);
  color: var(--text-ghost);
  letter-spacing: 0.3px;
}
.m-sv {
  color: var(--accent);
  opacity: 0.85;
}
.mastery:nth-child(3) .m-sv,
.mastery:nth-child(4) .m-sv {
  color: var(--text-ghost);
  opacity: 1;
}

/* foot · countdown */
.spec-foot {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.sf-count {
  font: 600 22px var(--font-mono);
  color: var(--text);
  letter-spacing: 0.8px;
  font-variant-numeric: tabular-nums;
}

/* ═══════ responsive ═══════ */
@media (max-width: 1060px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-left {
    max-width: 720px;
  }
}
@media (max-width: 720px) {
  .hero {
    padding: calc(96px + 24px) var(--side-pad) 72px;
  }
  .hero-title {
    font-size: clamp(24px, 6vw, 32px);
  }
  .hero-lead {
    font-size: 14px;
  }
  .capabilities {
    grid-template-columns: 1fr;
    gap: 8px 0;
    padding: 16px 0;
  }
  .capabilities > div {
    grid-template-columns: 90px 1fr;
  }
  .hero-spec {
    padding: 16px;
    gap: 16px;
  }
  .spec-name {
    font-size: 14px;
  }
  .sf-count {
    font-size: 18px;
  }
}

/* ══════════════════════════════════════════════════════════════
   INTERSTITIAL · "while you sleep" · one-shot iris reveal
   Plays on scroll-into-view via IntersectionObserver. No pinning.
   ══════════════════════════════════════════════════════════════ */
.sleep-reveal {
  position: relative;
  height: 56vh;
  min-height: 420px;
  max-height: 680px;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  overflow: hidden;
  background: var(--bg-deep);
}
/* smoky green ambient bleed at top + bottom · lets image breathe into the page */
.sleep-reveal::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background: radial-gradient(
      ellipse 80% 40% at center -5%,
      rgba(47, 202, 148, 0.18),
      transparent 70%
    ),
    radial-gradient(
      ellipse 80% 40% at center 105%,
      rgba(47, 202, 148, 0.14),
      transparent 70%
    );
  mix-blend-mode: screen;
}
.sleep-reveal-bg {
  position: absolute;
  inset: 0;
  background: url("while-you-sleep.webp") center/cover no-repeat;
  opacity: 0;
  filter: blur(22px);
  transform: scale(1.06);
  transition: opacity 1.4s cubic-bezier(0.22, 1, 0.36, 1),
    filter 1.6s cubic-bezier(0.22, 1, 0.36, 1),
    transform 1.8s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, filter, transform;
  -webkit-mask: linear-gradient(
    to bottom,
    transparent 0%,
    #000 12%,
    #000 88%,
    transparent 100%
  );
  mask: linear-gradient(
    to bottom,
    transparent 0%,
    #000 12%,
    #000 88%,
    transparent 100%
  );
}
.sleep-reveal.is-open .sleep-reveal-bg {
  opacity: 1;
  filter: blur(0);
  transform: scale(1);
}
/* Readability scrim behind the caption · only where the text sits */
.sleep-reveal-caption {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  padding: 32px 48px;
  z-index: 2;
  opacity: 0;
  transition: opacity 0.9s var(--ease) 1s;
  pointer-events: none;
}
.sleep-reveal-caption::before {
  content: "";
  position: absolute;
  inset: -20px -40px;
  background: radial-gradient(
    ellipse at center,
    rgba(10, 12, 18, 0.75) 0%,
    rgba(10, 12, 18, 0.4) 55%,
    transparent 85%
  );
  z-index: -1;
  filter: blur(8px);
}
.sleep-reveal.is-open .sleep-reveal-caption {
  opacity: 1;
}
.sleep-reveal-title {
  font: 600 clamp(32px, 4.4vw, 56px) var(--font-sans);
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text-bright);
  margin: 0;
  white-space: nowrap;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.95), 0 0 40px rgba(0, 0, 0, 0.7);
}
.sleep-reveal-title em {
  font-style: italic;
  font-weight: 500;
  color: var(--accent);
  white-space: nowrap;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.9), 0 0 20px rgba(47, 202, 148, 0.55),
    0 0 44px rgba(47, 202, 148, 0.28);
}

@media (prefers-reduced-motion: reduce) {
  .sleep-reveal-bg {
    opacity: 1;
    filter: none;
    transform: none;
    transition: none;
  }
  .sleep-reveal-caption {
    opacity: 1;
    transition: none;
  }
}
@media (max-width: 720px) {
  .sleep-reveal {
    height: 44vh;
    min-height: 340px;
    max-height: 520px;
  }
  .sleep-reveal-title {
    font-size: clamp(22px, 5.2vw, 30px);
  }
  .sleep-reveal-caption {
    padding: 18px 20px;
  }
}

/* ══════════════════════════════════════════════════════════════
   002 / OUTCOMES · what you wake up to
   ══════════════════════════════════════════════════════════════ */
.outcomes {
  position: relative;
  z-index: 2;
}
/* Longer outcomes heading · sized so line 1 (52 chars) always fits on one line */
.outcomes .section-head {
  grid-template-columns: 60px 1fr;
  gap: 28px;
}
.outcomes .section-title {
  font-size: clamp(30px, 4.6vw, 56px);
  letter-spacing: -0.03em;
  line-height: 1.08;
  max-width: none;
  text-wrap: balance;
}
.outcome-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 32px;
}
.outcome-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 28px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color var(--t-fast);
}
.outcome-card:hover {
  border-color: var(--border-strong);
}
.oc-icon {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  background: var(--accent-subtle);
  border: 1px solid var(--accent-mid);
  border-radius: var(--r-sm);
  margin-bottom: 4px;
}
.oc-icon svg {
  width: 22px;
  height: 22px;
  display: block;
}
.oc-title {
  font: 600 18px var(--font-sans);
  color: var(--text-bright);
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin: 0;
}
.oc-copy {
  font: 400 14px var(--font-sans);
  color: var(--text-secondary);
  line-height: 1.55;
  margin: 0;
}
.outcome-foot {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 32px auto 0;
  font: 500 11px var(--font-mono);
  color: var(--text-ghost);
  letter-spacing: 1.2px;
  text-transform: uppercase;
  justify-content: center;
  width: 100%;
  text-align: center;
}

.wake-report {
  margin: 18px auto 0;
  max-width: 980px;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, var(--accent-subtle), transparent 34%),
    linear-gradient(180deg, var(--surface-raised), var(--surface));
  padding: 18px;
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  align-items: center;
  box-shadow: 0 24px 60px -44px rgba(0, 0, 0, 0.75);
}
.wake-report-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: 500 10px var(--font-mono);
  color: var(--accent);
  letter-spacing: 1.1px;
  text-transform: uppercase;
}
.wake-report-main {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--border);
}
.wake-report-main div {
  min-width: 0;
  background: color-mix(in srgb, var(--bg-subtle) 86%, transparent);
  padding: 14px;
}
.wake-report-main span {
  display: block;
  margin-bottom: 7px;
  font: 500 10px var(--font-mono);
  color: var(--text-ghost);
  letter-spacing: 0.6px;
  text-transform: uppercase;
}
.wake-report-main strong {
  display: block;
  font: 600 22px var(--font-mono);
  color: var(--text-bright);
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.wake-report p {
  grid-column: 2;
  color: var(--text-secondary);
  font: 400 13px var(--font-sans);
  line-height: 1.55;
  margin: -4px 0 0;
}
.of-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
  animation: pulseDot 1.6s infinite;
}

@media (max-width: 1060px) {
  .outcome-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 560px) {
  .outcome-grid {
    grid-template-columns: 1fr;
  }
  .oc-title {
    font-size: 16px;
  }
}

/* ══════════════════════════════════════════════════════════════
   003 / TRUST
   ══════════════════════════════════════════════════════════════ */
.trust-table {
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--surface);
}
.trust-row {
  display: grid;
  grid-template-columns: 1fr 1.4fr 1.4fr;
  border-top: 1px solid var(--border);
  transition: background var(--t-fast);
}
.trust-row:first-child {
  border-top: none;
}
.trust-row:not(.trust-head) > div {
  padding: 22px 24px;
}
.trust-row:not(.trust-head):hover {
  background: var(--surface-hi);
}

.trust-head {
  background: var(--bg-subtle);
  font: 500 11px var(--font-mono);
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-ghost);
}
.trust-head > div {
  padding: 14px 24px;
}
.trust-head .spark-col {
  color: var(--accent);
}

.trust-label {
  font: 500 14px var(--font-sans);
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 12px;
}
.trust-label span {
  font: 500 11px var(--font-mono);
  color: var(--text-ghost);
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  letter-spacing: 1px;
}
.trust-spark {
  font: 400 15px var(--font-sans);
  color: var(--text);
  position: relative;
  padding-left: 36px;
}
.trust-spark::before {
  content: "✓";
  position: absolute;
  left: 24px;
  top: 22px;
  color: var(--accent);
  font-weight: 600;
}
.trust-other {
  font: 400 15px var(--font-sans);
  color: var(--text-tertiary);
  position: relative;
  padding-left: 36px;
  text-decoration: line-through;
  text-decoration-color: var(--text-faint);
}
.trust-other::before {
  content: "×";
  position: absolute;
  left: 24px;
  top: 20px;
  color: var(--status-red);
  text-decoration: none;
  font-size: 18px;
}
.trust-row:not(.trust-head) .trust-other,
.trust-row:not(.trust-head) .trust-spark {
  padding: 22px 24px 22px 48px;
}

/* ══════════════════════════════════════════════════════════════
   003 / BOARD
   ══════════════════════════════════════════════════════════════ */
.board-stage {
  position: relative;
  height: 520px;
  background: radial-gradient(
      circle at 30% 30%,
      var(--accent-subtle),
      transparent 50%
    ),
    radial-gradient(circle at 70% 70%, var(--iris-glow), transparent 50%),
    var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  overflow: hidden;
  background-image: linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: 0 0;
}

.board-cables {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}
.board-cables path {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.5;
  opacity: 0.7;
  stroke-dasharray: 4 4;
  animation: dashflow 2s linear infinite;
}
@keyframes dashflow {
  to {
    stroke-dashoffset: -16;
  }
}

.board-stepper {
  display: none;
}

.board-node {
  position: absolute;
  width: 180px;
  background: var(--surface-raised);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  z-index: 2;
  transition: transform var(--t-fast), box-shadow var(--t-fast),
    border-color var(--t-fast);
  cursor: grab;
  box-shadow: 0 8px 24px -8px rgba(0, 0, 0, 0.35);
}
.board-node-input {
  left: 6%;
  top: 24%;
}
.board-node-memory {
  left: 32%;
  top: 8%;
}
.board-node-brain {
  left: 32%;
  top: 54%;
}
.board-node-chip {
  left: 60%;
  top: 14%;
}
.board-node-output {
  left: 74%;
  top: 52%;
}
.board-node.dragging {
  cursor: grabbing;
  z-index: 3;
}
.board-node:hover {
  border-color: var(--accent);
  box-shadow: 0 16px 40px -12px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--accent-mid);
}
.board-node.is-selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent-mid), 0 18px 45px -18px var(--accent-glow);
}
.board-node.glow {
  box-shadow: 0 0 0 1px var(--accent-mid), 0 20px 50px -15px var(--accent-glow);
}

.node-chrome {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 7px 10px;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border);
  border-radius: var(--r-md) var(--r-md) 0 0;
  font: 500 10px var(--font-mono);
  letter-spacing: 1px;
  color: var(--text-ghost);
}
.node-chrome span {
  color: var(--text);
  letter-spacing: 1.5px;
}
.node-chrome.accent span {
  color: var(--accent);
}
.node-chrome.iris span {
  color: var(--iris);
}
.node-chrome i {
  font-style: normal;
  color: var(--text-tertiary);
}
.node-body {
  padding: 12px 14px;
}
.node-title {
  font: 500 14px var(--font-sans);
  color: var(--text);
  margin-bottom: 2px;
}
.node-sub {
  font: 400 11px var(--font-mono);
  color: var(--text-tertiary);
  letter-spacing: 0.3px;
}

.port {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--surface);
  top: 50%;
  transform: translateY(-50%);
}
.port-in {
  left: -5px;
}
.port-out {
  right: -5px;
}

.board-hint {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  font: 500 11px var(--font-mono);
  color: var(--text-ghost);
  letter-spacing: 1px;
  text-transform: uppercase;
  z-index: 2;
}
.board-hint .hk {
  color: var(--accent);
  padding: 2px 6px;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-xs);
  margin: 0 2px;
}

.board-inspector {
  position: absolute;
  right: 18px;
  top: 18px;
  width: min(310px, calc(100% - 36px));
  z-index: 4;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  background: linear-gradient(
      180deg,
      color-mix(in srgb, var(--surface-hi) 18%, transparent),
      transparent
    ),
    color-mix(in srgb, var(--bg-deep) 94%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 22px 54px -26px rgba(0, 0, 0, 0.82);
  overflow: hidden;
}
.bi-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}
.bi-head strong {
  font: 600 13px var(--font-mono);
  color: var(--text-bright);
  letter-spacing: 0.1px;
}
.bi-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-bottom: 1px solid var(--border);
}
.bi-grid div {
  padding: 11px 12px;
  border-left: 1px solid var(--border);
}
.bi-grid div:first-child {
  border-left: none;
}
.bi-grid dt {
  font: 500 9px var(--font-mono);
  color: var(--text-ghost);
  letter-spacing: 1px;
  text-transform: uppercase;
}
.bi-grid dd {
  margin-top: 5px;
  font: 600 12px var(--font-mono);
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.bi-block {
  padding: 12px 14px 14px;
  border-top: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
}
.bi-block:first-of-type {
  border-top: none;
}
.bi-block span {
  display: block;
  margin-bottom: 6px;
  font: 500 9px var(--font-mono);
  color: var(--text-ghost);
  letter-spacing: 1px;
  text-transform: uppercase;
}
.bi-block p {
  margin: 0;
  font: 400 12px var(--font-sans);
  color: var(--text-secondary);
  line-height: 1.48;
}

.board-foot {
  margin-top: 40px;
}
.board-bullets {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.board-bullets > div {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg-subtle);
  transition: border-color var(--t-fast);
}
.board-bullets > div:hover {
  border-color: var(--accent);
}
.board-bullets .k {
  font: 500 11px var(--font-mono);
  color: var(--accent);
  letter-spacing: 2px;
  margin-bottom: 12px;
  display: block;
}
.board-bullets h4 {
  font: 500 18px var(--font-sans);
  letter-spacing: -0.2px;
  margin-bottom: 8px;
  color: var(--text);
}
.board-bullets p {
  font: 400 14px var(--font-sans);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* (section 004 removed · "uses what you already have" merged into hero) */

/* ══════════════════════════════════════════════════════════════
   005 / MODULES
   ══════════════════════════════════════════════════════════════ */
.marquee {
  width: 100vw;
  margin: 24px calc(50% - 50vw) 64px;
  overflow: hidden;
  overflow: clip;
  contain: paint;
  min-height: 58px;
  padding: 14px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-subtle);
  position: relative;
}
/* fade at the edges · like a ticker tape dissolving into the page */
.marquee::before,
.marquee::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 120px;
  pointer-events: none;
  z-index: 2;
}
.marquee::before {
  left: 0;
  background: linear-gradient(to right, var(--bg-subtle), transparent);
}
.marquee::after {
  right: 0;
  background: linear-gradient(to left, var(--bg-subtle), transparent);
}

.marquee-track {
  position: absolute;
  top: 14px;
  left: 0;
  display: flex;
  gap: 12px;
  animation: marqueeSlide 65s linear infinite;
  padding-right: 12px;
  width: max-content;
}
.marquee:hover .marquee-track,
.marquee:focus-within .marquee-track {
  animation-play-state: paused;
}

.marquee-tile {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface);
  font: 500 12px var(--font-mono);
  letter-spacing: 0.2px;
  white-space: nowrap;
  cursor: default;
  transition: border-color var(--t-fast), transform var(--t-fast),
    background var(--t-fast);
  outline: none;
}
.marquee-tile:hover,
.marquee-tile:focus-visible {
  border-color: var(--accent-mid);
  background: var(--surface-hi);
  transform: translateY(-2px);
}
.marquee-tile.pro:hover,
.marquee-tile.pro:focus-visible {
  border-color: var(--iris-dim);
}

.mt-slash {
  color: var(--accent);
  font-weight: 500;
}
.marquee-tile.pro .mt-slash {
  color: var(--iris);
}
.mt-slug {
  color: var(--text-bright);
  font-weight: 500;
  margin-right: 2px;
}
.mt-sep {
  color: var(--text-faint);
  margin: 0 2px;
}
.mt-line {
  color: var(--text-tertiary);
  font-weight: 400;
  font-family: var(--font-sans);
  letter-spacing: 0.1px;
  transition: color var(--t-fast);
}
.marquee-tile:hover .mt-line,
.marquee-tile:focus-visible .mt-line {
  color: var(--text-bright);
}

@keyframes marqueeSlide {
  to {
    transform: translateX(-50%);
  }
}

/* ═══════ THE BUILD · holographic blueprint brick-stack ═══════ */
.build-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 72px;
  align-items: center;
  margin: 56px auto 48px;
  max-width: 1180px;
}
.build-core {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  padding: 48px 0 56px;
  position: relative;
}
/* ambient floor glow under the stack */
.build-core::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 8px;
  transform: translateX(-50%);
  width: 420px;
  max-width: 92%;
  height: 60px;
  background: radial-gradient(
    ellipse at center bottom,
    rgba(47, 202, 148, 0.18) 0%,
    transparent 65%
  );
  filter: blur(10px);
  pointer-events: none;
  opacity: 0;
  transition: opacity 1.2s ease 0.8s;
}
.build-stage.is-in .build-core::before {
  opacity: 1;
}

/* holographic brick · scanlines + chromatic edge + occasional flicker */
.brick {
  position: relative;
  width: 320px;
  max-width: 92%;
  padding: 18px 22px 16px 22px;
  background: linear-gradient(
      180deg,
      rgba(47, 202, 148, 0.08) 0%,
      rgba(184, 168, 220, 0.06) 100%
    ),
    repeating-linear-gradient(
      0deg,
      transparent 0 2px,
      rgba(47, 202, 148, 0.05) 2px 3px
    );
  border: 1px solid rgba(47, 202, 148, 0.3);
  border-radius: var(--r-sm);
  box-shadow: 1px 0 0 rgba(47, 202, 148, 0.18),
    -1px 0 0 rgba(184, 168, 220, 0.18), inset 0 0 24px rgba(47, 202, 148, 0.04),
    0 0 30px -6px rgba(47, 202, 148, 0.22);
  opacity: 0;
  transform: translateY(-32px);
  transition: opacity 0.55s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.6s cubic-bezier(0.34, 1.35, 0.45, 1),
    border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
@keyframes holoFlicker {
  0%,
  93%,
  100% {
    opacity: 1;
  }
  94% {
    opacity: 0.82;
  }
  95% {
    opacity: 1;
  }
  96% {
    opacity: 0.88;
  }
  97% {
    opacity: 1;
  }
}
.build-stage.is-in .brick {
  opacity: 1;
  transform: translateY(0);
  transition-delay: calc(var(--bd, 0ms));
  animation: holoFlicker 6s ease-in-out infinite;
  animation-delay: calc(var(--bd, 0ms) + 1200ms);
}

/* corner tick marks · engineering blueprint feel */
.brick::before,
.brick::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border: 1px solid rgba(47, 202, 148, 0.65);
  pointer-events: none;
}
.brick::before {
  top: -1px;
  left: -1px;
  border-right: none;
  border-bottom: none;
}
.brick::after {
  bottom: -1px;
  right: -1px;
  border-left: none;
  border-top: none;
}

.brick:hover {
  border-color: var(--accent);
  box-shadow: inset 0 0 24px rgba(47, 202, 148, 0.12),
    0 0 40px -6px rgba(47, 202, 148, 0.45);
  transform: translateY(-2px);
}
.brick.brick-pro {
  background: linear-gradient(
    180deg,
    rgba(184, 168, 220, 0.06) 0%,
    rgba(184, 168, 220, 0.02) 100%
  );
  border-color: rgba(184, 168, 220, 0.3);
  box-shadow: inset 0 0 24px rgba(184, 168, 220, 0.04),
    0 0 24px -8px rgba(184, 168, 220, 0.18);
}
.brick.brick-pro::before,
.brick.brick-pro::after {
  border-color: rgba(184, 168, 220, 0.65);
}
.brick.brick-pro:hover {
  border-color: var(--iris);
  box-shadow: inset 0 0 24px rgba(184, 168, 220, 0.12),
    0 0 40px -6px rgba(184, 168, 220, 0.45);
}

/* the 4 glowing stud dots on top */
.brick-studs {
  position: absolute;
  top: -5px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 26px;
}
.brick-studs i {
  display: block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow), 0 0 1px var(--accent);
  animation: studPulse 3s ease-in-out infinite;
}
.brick-studs i:nth-child(2) {
  animation-delay: 0.4s;
}
.brick-studs i:nth-child(3) {
  animation-delay: 0.8s;
}
.brick-studs i:nth-child(4) {
  animation-delay: 1.2s;
}
.brick.brick-pro .brick-studs i {
  background: var(--iris);
  box-shadow: 0 0 8px var(--iris-glow), 0 0 1px var(--iris);
}
@keyframes studPulse {
  0%,
  100% {
    opacity: 0.85;
    box-shadow: 0 0 8px var(--accent-glow), 0 0 1px var(--accent);
  }
  50% {
    opacity: 1;
    box-shadow: 0 0 14px var(--accent), 0 0 2px var(--accent);
  }
}

.brick-body {
  display: flex;
  flex-direction: column;
  gap: 3px;
  position: relative;
  z-index: 1;
}
.brick-name {
  font: 500 14px var(--font-mono);
  color: var(--text-bright);
  letter-spacing: 0.25px;
}
.brick-note {
  font: 400 12px var(--font-sans);
  color: var(--text-tertiary);
  letter-spacing: 0.1px;
}
.brick-stat {
  display: inline-flex;
  width: fit-content;
  margin-top: 8px;
  padding: 4px 7px;
  border: 1px solid var(--accent-mid);
  border-radius: var(--r-xs);
  color: var(--accent);
  background: rgba(47, 202, 148, 0.06);
  font: 500 10px var(--font-mono);
  letter-spacing: 0.2px;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
}
.brick:hover .brick-stat,
.brick:focus-within .brick-stat {
  opacity: 1;
  transform: translateY(0);
}
.brick.brick-pro .brick-stat {
  color: var(--iris);
  border-color: var(--iris-glow);
  background: rgba(184, 168, 220, 0.06);
}
.brick.brick-pro .brick-name::before {
  content: "â—†";
  color: var(--iris);
  margin-right: 6px;
  font-size: 10px;
  vertical-align: middle;
}

/* connector line · animated energy flowing down */
.brick:not(:last-child)::before,
.brick:not(:last-child)::after {
  /* keep corner ticks · add wire separately below */
}
.brick-wire {
  position: absolute;
  left: 50%;
  top: 100%;
  width: 1px;
  height: 28px;
  transform: translateX(-50%);
  overflow: hidden;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
  transition-delay: calc(var(--bd, 0ms) + 200ms);
}
.build-stage.is-in .brick-wire {
  opacity: 1;
}
.brick-wire::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    transparent 0%,
    var(--accent) 30%,
    var(--accent) 70%,
    transparent 100%
  );
  background-size: 100% 200%;
  animation: wireFlow 2.2s linear infinite;
  opacity: 0.5;
}
@keyframes wireFlow {
  from {
    background-position: 0% 200%;
  }
  to {
    background-position: 0% 0%;
  }
}

/* the newly-forged brick · Spark just made this one (softer now) */
.brick.brick-forged {
  border-color: rgba(47, 202, 148, 0.55);
  box-shadow: 1px 0 0 rgba(47, 202, 148, 0.22),
    -1px 0 0 rgba(184, 168, 220, 0.22), inset 0 0 22px rgba(47, 202, 148, 0.08),
    0 0 32px -6px rgba(47, 202, 148, 0.3);
  animation: forgedAura 3.6s ease-in-out infinite,
    holoFlicker 6s ease-in-out infinite;
  animation-delay: 0s, calc(var(--bd, 0ms) + 1200ms);
}
.brick.brick-forged::before,
.brick.brick-forged::after {
  border-color: rgba(47, 202, 148, 0.8);
}
.brick.brick-forged .brick-name {
  color: var(--accent);
}
.brick.brick-forged .brick-studs i {
  animation-duration: 2.2s;
  box-shadow: 0 0 10px var(--accent-glow), 0 0 2px var(--accent);
}
@keyframes forgedAura {
  0%,
  100% {
    box-shadow: 1px 0 0 rgba(47, 202, 148, 0.22),
      -1px 0 0 rgba(184, 168, 220, 0.22),
      inset 0 0 22px rgba(47, 202, 148, 0.06),
      0 0 28px -6px rgba(47, 202, 148, 0.22);
  }
  50% {
    box-shadow: 1px 0 0 rgba(47, 202, 148, 0.3),
      -1px 0 0 rgba(184, 168, 220, 0.3), inset 0 0 26px rgba(47, 202, 148, 0.12),
      0 0 42px -6px rgba(47, 202, 148, 0.4);
  }
}
.brick-pulse-tag {
  position: absolute;
  top: 12px;
  right: 18px;
  font: 500 9px var(--font-mono);
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--accent);
  animation: pulseDot 1.6s infinite;
}

/* side story · for the kid who loved tools */
.build-note {
  max-width: 420px;
}
.build-note .overline {
  display: block;
  color: var(--accent);
  margin-bottom: 28px;
}
.build-note p {
  font: 400 15px var(--font-sans);
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0 0 24px;
  letter-spacing: 0.05px;
}
.build-note p:last-of-type {
  margin-bottom: 0;
}
.build-note strong {
  color: var(--text-bright);
  font-weight: 500;
}
.build-note em {
  font-style: italic;
  color: var(--accent);
  font-weight: 500;
}

/* the standout middle line · grown up */
.build-note-hero {
  font-size: 19px !important;
  line-height: 1.4 !important;
  color: var(--text-bright) !important;
  padding: 6px 0 !important;
  letter-spacing: -0.01em !important;
}
.build-note-hero em {
  font-style: italic;
  background: linear-gradient(110deg, var(--accent) 30%, var(--iris) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.build-note-close {
  margin-top: 32px !important;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--text) !important;
  font-weight: 500;
  font-size: 15px !important;
}
.build-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 8px 0 24px;
}
.build-facts span {
  min-width: 0;
  padding: 10px 8px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--surface);
  color: var(--text-tertiary);
  font: 500 11px var(--font-mono);
  text-align: center;
}
.build-facts strong {
  display: block;
  color: var(--accent);
  font: 600 12px var(--font-mono);
}

@media (max-width: 960px) {
  .build-stage {
    grid-template-columns: 1fr;
    gap: 32px;
    max-width: 520px;
  }
  .build-note {
    max-width: 100%;
    text-align: center;
  }
}
@media (max-width: 560px) {
  .brick {
    width: 270px;
    padding: 14px 18px 12px 18px;
  }
  .brick-studs {
    gap: 22px;
  }
  .brick-studs i {
    width: 18px;
    height: 12px;
  }
  .brick-name {
    font-size: 13px;
  }
  .brick-note {
    font-size: 11px;
  }
}

.dot-pulse {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 8px;
  animation: pulseDot 1.6s infinite;
}

/* ══════════════════════════════════════════════════════════════
   006 / BRAIN + RECURSIVE LOOP
   ══════════════════════════════════════════════════════════════ */
.brain-stage {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

/* Spark brand-mark loop viz · logo as recursive path */
.spark-loop {
  position: relative;
  width: 100%;
  max-width: 540px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.spark-loop-svg {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}

/* Static backing track · faint Spark outline */
.sl-track {
  fill: none;
  stroke: var(--border-strong);
  stroke-width: 1;
}

/* Flowing gradient segment travels the Spark logo */
.sl-flow {
  fill: none;
  stroke: url(#infGrad);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-dasharray: 160 900;
  stroke-dashoffset: 0;
  animation: slFlow 10s linear infinite;
}
@keyframes slFlow {
  to {
    stroke-dashoffset: -1060;
  }
}

/* Marker dot traveling the Spark logo path */
.sl-marker {
  fill: var(--accent);
  filter: drop-shadow(0 0 8px var(--accent-glow));
}

/* Counter card · sits below the viz, not over it */
.sl-stat {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 18px auto 0;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm);
}
.sl-num {
  font: 500 20px var(--font-mono);
  color: var(--accent);
  letter-spacing: -0.01em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.sl-sub {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: 500 9px var(--font-mono);
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--text-ghost);
}
.sl-sub .sl-pulse {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
  animation: pulseDot 1.4s ease-in-out infinite;
}

.loop-steps {
  list-style: none;
  counter-reset: step;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--border-strong);
}
.loop-steps li {
  padding: 20px 0 20px 28px;
  position: relative;
  transition: border-color var(--t-fast);
}
.loop-steps li::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 26px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--accent);
}
.loop-steps li:hover::before {
  background: var(--accent);
}
.loop-steps .lk {
  font: 500 10px var(--font-mono);
  letter-spacing: 2px;
  color: var(--accent);
}
.loop-steps h4 {
  font: 500 22px var(--font-sans);
  letter-spacing: -0.3px;
  color: var(--text);
  margin: 4px 0 6px;
}
.loop-steps p {
  font: 400 14px var(--font-sans);
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 44ch;
}

/* ══════════════════════════════════════════════════════════════
   007 / SWARM
   ══════════════════════════════════════════════════════════════ */
.swarm.section {
  max-width: none;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  min-height: clamp(720px, 78vw, 980px);
  padding-top: clamp(76px, 8vw, 116px);
  padding-bottom: clamp(220px, 24vw, 340px);
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.swarm-stage {
  position: absolute;
  inset: 0;
  background: var(--bg);
  overflow: hidden;
  z-index: 0;
}
.swarm-canvas {
  position: absolute;
  inset: -6% -5% -4% 24%;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.72;
}
.swarm-inner {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: var(--side-pad);
}
.swarm-overlay {
  position: absolute;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 2;
}

/* Glass-card module — matches sparkswarm.ai/WaitlistPage card */
.swarm-card {
  width: 100%;
  max-width: 560px;
  margin: 0 auto 0 0;
  border-radius: var(--r-lg);
  border: 1px solid color-mix(in srgb, var(--border-strong) 65%, transparent);
  background: color-mix(in srgb, var(--surface) 74%, transparent);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 32px 100px rgba(0, 0, 0, 0.35);
  padding: clamp(26px, 3.2vw, 40px);
  text-align: left;
}
.swarm-card .section-head {
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 20px;
  text-align: left;
}
.swarm-card .section-head .num {
  display: block;
  margin: 0;
  padding: 0;
}
.swarm-card .section-title {
  max-width: none;
  margin: 8px 0 0;
}
.swarm-card .section-lead {
  grid-column: auto;
  margin: 18px 0 0;
  max-width: 47ch;
}
.swarm-detail {
  margin: 20px 0 0;
  max-width: 42ch;
  font: 400 15px var(--font-sans);
  color: var(--text-secondary);
  line-height: 1.55;
}
.swarm-stat {
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  padding: 10px 14px;
  min-width: 200px;
}
.sk {
  display: block;
  font: 500 10px var(--font-mono);
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-ghost);
}
.swarm-stat strong {
  display: block;
  font: 500 28px var(--font-mono);
  color: var(--accent);
  letter-spacing: -0.02em;
}
.swarm-stat .swarm-status {
  font: 500 15px var(--font-mono);
  letter-spacing: 0.5px;
  text-transform: lowercase;
  color: var(--text-bright);
  margin-top: 4px;
  font-variant-numeric: tabular-nums;
}

@media (min-width: 961px) and (max-width: 1120px) {
  .swarm-card {
    max-width: 500px;
  }
}

/* ══════════════════════════════════════════════════════════════
   008 / CLOSED (no takeover)
   ══════════════════════════════════════════════════════════════ */
.closed {
  position: relative;
  padding: clamp(100px, 12vw, 180px) var(--side-pad);
  background: radial-gradient(
      circle at 20% 0%,
      var(--accent-subtle),
      transparent 40%
    ),
    radial-gradient(circle at 80% 100%, var(--iris-glow), transparent 40%),
    var(--bg-deep);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  max-width: none;
  margin-left: calc(-1 * var(--side-pad));
  margin-right: calc(-1 * var(--side-pad));
  overflow: hidden;
}
.closed::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.3;
  pointer-events: none;
}
.closed-inner {
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
}
.closed-marker {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 36px;
  font: 500 11px var(--font-mono);
  color: var(--text-ghost);
  letter-spacing: 2px;
  text-transform: uppercase;
}
.closed-marker .num {
  color: var(--accent);
  padding: 0;
}
.closed-title {
  font: 500 clamp(48px, 8vw, 104px) var(--font-sans);
  letter-spacing: -0.045em;
  line-height: 0.98;
  color: var(--text);
  margin-bottom: 32px;
  max-width: 20ch;
}
.closed-lead {
  max-width: 620px;
  font: 400 19px var(--font-sans);
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
}
.closed-line {
  font: 500 24px var(--font-sans);
  color: var(--accent);
  font-style: italic;
  letter-spacing: -0.3px;
  margin-bottom: 72px;
}
.closed-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.closed-box {
  padding: 32px 26px;
  background: var(--surface);
  transition: background var(--t-fast);
}
.closed-box:hover {
  background: var(--surface-hi);
}
.cb-icon {
  font-size: 22px;
  color: var(--accent);
  display: block;
  margin-bottom: 20px;
}
.closed-box strong {
  display: block;
  font: 500 20px var(--font-sans);
  letter-spacing: -0.3px;
  color: var(--text);
  margin-bottom: 10px;
}
.closed-box em {
  display: block;
  font: 400 14px var(--font-sans);
  font-style: normal;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ══════════════════════════════════════════════════════════════
   007 / BUILD SYSTEM
   ══════════════════════════════════════════════════════════════ */
.system {
  position: relative;
  overflow: hidden;
}
.system::before {
  content: "";
  position: absolute;
  inset: 6% 0 auto;
  height: 620px;
  pointer-events: none;
  background-image: linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle at 50% 52%, black, transparent 74%);
  opacity: 0.2;
}
.system-map {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-areas:
    "output output"
    "left right";
  gap: 18px;
  margin-top: 24px;
  padding: 28px;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-xl);
  overflow: hidden;
  background: radial-gradient(
      circle at 50% 28%,
      color-mix(in srgb, var(--accent-subtle) 86%, transparent),
      transparent 32%
    ),
    radial-gradient(
      circle at 78% 18%,
      color-mix(in srgb, var(--iris-glow) 80%, transparent),
      transparent 30%
    ),
    radial-gradient(
      circle at 20% 74%,
      rgba(255, 196, 87, 0.08),
      transparent 28%
    ),
    var(--bg-deep);
}
.system-map::before,
.system-map::after {
  content: "";
  position: absolute;
  pointer-events: none;
}
.system-map::before {
  inset: 28px;
  border: 1px solid color-mix(in srgb, var(--accent) 14%, transparent);
  border-radius: var(--r-lg);
  opacity: 0.8;
}
.system-map::after {
  left: 50%;
  top: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(
      180deg,
      transparent,
      var(--accent-mid),
      transparent 46%
    ),
    linear-gradient(180deg, transparent 54%, var(--iris-glow), transparent);
  opacity: 0.7;
}
.system-materials {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 14px;
  align-content: start;
}
.material-left {
  grid-area: left;
}
.material-right {
  grid-area: right;
}
.material-brick {
  position: relative;
  min-height: 150px;
  padding: 18px 18px 16px;
  border: 1px solid rgba(47, 202, 148, 0.28);
  border-radius: var(--r-sm);
  background: linear-gradient(
      180deg,
      rgba(47, 202, 148, 0.08),
      rgba(184, 168, 220, 0.045)
    ),
    repeating-linear-gradient(
      0deg,
      transparent 0 2px,
      rgba(47, 202, 148, 0.045) 2px 3px
    ),
    color-mix(in srgb, var(--surface) 62%, transparent);
  box-shadow: 1px 0 0 rgba(47, 202, 148, 0.16),
    -1px 0 0 rgba(184, 168, 220, 0.12), inset 0 0 24px rgba(47, 202, 148, 0.035);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.material-brick::before,
.material-brick::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border: 1px solid rgba(47, 202, 148, 0.62);
  pointer-events: none;
}
.material-brick::before {
  top: -1px;
  left: -1px;
  border-right: none;
  border-bottom: none;
}
.material-brick::after {
  right: -1px;
  bottom: -1px;
  border-left: none;
  border-top: none;
}
.material-brick:hover {
  border-color: color-mix(in srgb, var(--accent) 70%, var(--border));
  box-shadow: inset 0 0 28px rgba(47, 202, 148, 0.1),
    0 0 34px -10px rgba(47, 202, 148, 0.42);
}
.material-iris {
  border-color: rgba(184, 168, 220, 0.3);
  background: linear-gradient(
      180deg,
      rgba(184, 168, 220, 0.08),
      rgba(47, 202, 148, 0.035)
    ),
    repeating-linear-gradient(
      0deg,
      transparent 0 2px,
      rgba(184, 168, 220, 0.04) 2px 3px
    ),
    color-mix(in srgb, var(--surface) 64%, transparent);
}
.material-iris::before,
.material-iris::after {
  border-color: rgba(184, 168, 220, 0.64);
}
.material-forged {
  border-color: rgba(47, 202, 148, 0.54);
  animation: forgedAura 3.8s ease-in-out infinite;
}
.material-studs {
  position: absolute;
  top: -5px;
  left: 18px;
  display: flex;
  gap: 16px;
}
.material-studs i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
  animation: studPulse 3s ease-in-out infinite;
}
.material-studs i:nth-child(2) {
  animation-delay: 0.4s;
}
.material-studs i:nth-child(3) {
  animation-delay: 0.8s;
}
.material-iris .material-studs i {
  background: var(--iris);
  box-shadow: 0 0 10px var(--iris-glow);
}
.material-brick span,
.system-output span {
  display: block;
  margin-bottom: 10px;
  font: 600 10px var(--font-mono);
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--accent);
}
.material-brick strong {
  display: block;
  color: var(--text-bright);
  font: 600 18px var(--font-sans);
  line-height: 1.12;
  letter-spacing: 0;
}
.material-brick p {
  color: var(--text-secondary);
  line-height: 1.56;
}
.material-brick p {
  margin-top: 9px;
  font-size: 13px;
}
.system-output {
  position: relative;
  z-index: 2;
  grid-area: output;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: center;
  margin-top: 6px;
  padding: 15px 16px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
}
.system-output span {
  margin-bottom: 0;
  white-space: nowrap;
}
.system-output div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.system-output em {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  padding: 0 10px;
  border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--border));
  border-radius: var(--r-xs);
  color: var(--text);
  background: rgba(47, 202, 148, 0.055);
  font: 500 12px var(--font-mono);
  font-style: normal;
}

@media (max-width: 1060px) {
  .system-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-areas:
      "output output"
      "left right";
    gap: 14px;
  }
  .system-materials {
    align-content: start;
  }
}

@media (max-width: 700px) {
  .system-map {
    grid-template-columns: 1fr;
    grid-template-areas:
      "output"
      "left"
      "right";
    gap: 10px;
    margin-top: 18px;
    margin-inline: -8px;
    padding: 14px;
    border-radius: var(--r-lg);
    background: linear-gradient(
        180deg,
        color-mix(in srgb, var(--accent-subtle) 86%, transparent),
        transparent 30%
      ),
      radial-gradient(
        circle at 86% 12%,
        color-mix(in srgb, var(--iris-glow) 68%, transparent),
        transparent 26%
      ),
      var(--bg-deep);
  }
  .system-map::before,
  .system-map::after {
    display: none;
  }
  .system-output {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 13px;
  }
  .system-output div {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 7px;
  }
  .system-output em {
    justify-content: center;
    min-height: 34px;
    padding-inline: 7px;
    text-align: center;
    font-size: 10.5px;
  }
  .material-brick {
    min-height: 0;
    padding: 15px 15px 14px;
  }
  .material-brick strong {
    font-size: 16.5px;
  }
  .material-brick p {
    margin-top: 7px;
    font-size: 12.4px;
    line-height: 1.44;
  }
}

/* ══════════════════════════════════════════════════════════════
   009 / PRICING
   ══════════════════════════════════════════════════════════════ */
.price-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 1040px;
  margin: 0 auto;
}

.price-card {
  position: relative;
  padding: 36px 36px 32px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.price-card.pro {
  background: radial-gradient(
      circle at 100% 0%,
      var(--iris-glow),
      transparent 50%
    ),
    var(--surface);
  border-color: var(--iris-dim);
}
.price-card.pro::before {
  content: "";
  position: absolute;
  inset: -1px;
  border: 1px solid var(--iris);
  border-radius: var(--r-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-fast);
}
.price-card.pro:hover::before {
  opacity: 1;
}

.price-label {
  display: inline-block;
  font: 500 11px var(--font-mono);
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  padding: 3px 10px;
  border: 1px solid var(--accent-mid);
  border-radius: var(--r-xs);
  margin-bottom: 24px;
}
.price-label.pro-label {
  color: var(--iris);
  border-color: var(--iris-dim);
  background: var(--iris-glow);
}
.price-name {
  font: 500 36px var(--font-sans);
  letter-spacing: -0.6px;
  color: var(--text);
  margin-bottom: 20px;
}
.price-amount {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 8px;
}
.price-amount .amount {
  font: 500 64px var(--font-sans);
  letter-spacing: -0.04em;
  color: var(--text);
  line-height: 1;
}
.price-card.pro .amount {
  background: linear-gradient(135deg, var(--text), var(--iris));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.price-amount .unit {
  font: 400 14px var(--font-mono);
  color: var(--text-tertiary);
  letter-spacing: 0.5px;
}
.price-annual {
  font: 400 13px var(--font-sans);
  color: var(--text-secondary);
  margin-bottom: 28px;
}
.price-annual strong {
  color: var(--text);
}
.save {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 8px;
  background: var(--accent-subtle);
  color: var(--accent);
  font: 500 10px var(--font-mono);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: var(--r-xs);
}
.price-card.free .price-annual {
  visibility: hidden;
}

.price-list {
  list-style: none;
  margin: 28px 0 36px;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
}
.price-list li {
  font: 400 15px var(--font-sans);
  color: var(--text);
  line-height: 1.5;
  padding-left: 24px;
  position: relative;
}
.price-list:not(.pro-list) li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 600;
}
.pro-list li span {
  position: absolute;
  left: 0;
  color: var(--iris);
  font-size: 10px;
  top: 3px;
}
.price-list li strong {
  color: var(--accent);
  font-weight: 500;
}
.pro-list li strong {
  color: var(--iris);
}

.price-cta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  background: var(--accent);
  color: var(--accent-fg);
  border-radius: var(--r-md);
  font: 500 14px var(--font-mono);
  letter-spacing: 0.3px;
  transition: transform var(--t-fast), background var(--t-fast);
}
.price-cta:hover {
  background: var(--accent-hover);
}
.price-cta.pro-cta {
  background: var(--iris);
  color: #1a0e3a;
}
.price-cta.pro-cta:hover {
  background: #a898c8;
}
.price-cta i {
  font-style: normal;
}

.price-fine {
  margin-top: 16px;
  text-align: center;
  font: 500 11px var(--font-mono);
  letter-spacing: 1px;
  color: var(--text-ghost);
}

.price-compare {
  margin: 64px auto 0;
  max-width: 720px;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.pc-row {
  display: grid;
  grid-template-columns: 1fr 1fr 2fr;
  gap: 12px;
  padding: 16px 24px;
  align-items: center;
  border-top: 1px solid var(--border);
  font: 500 13px var(--font-mono);
  color: var(--text-secondary);
  letter-spacing: 0.3px;
}
.pc-row:first-child {
  border-top: none;
}
.pc-row.highlight {
  background: var(--accent-subtle);
  color: var(--text);
}
.pc-row.highlight .pc-label {
  color: var(--accent);
}
.pc-label {
  font-size: 14px;
}
.pc-price {
  color: var(--text);
}
.pc-note {
  color: var(--text-tertiary);
  font-size: 12px;
}

/* ══════════════════════════════════════════════════════════════
   010 / INSTALL CTA
   ══════════════════════════════════════════════════════════════ */
.install {
  padding: clamp(56px, 7vw, 88px) var(--side-pad);
  text-align: center;
  background: radial-gradient(
      circle at 50% 100%,
      var(--accent-subtle),
      transparent 60%
    ),
    var(--bg);
  border-top: 1px solid var(--border);
  max-width: none;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
}
.install-inner {
  max-width: 1120px;
  margin: 0 auto;
}
.install-marker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  font: 500 10px var(--font-mono);
  color: var(--text-ghost);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}
.install-marker .num {
  color: var(--accent);
  padding: 0;
}
.install-title {
  font: 600 clamp(22px, 2.4vw, 30px) var(--font-sans);
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 28px;
}
.install-title i {
  font-style: italic;
  color: var(--accent);
  font-weight: 500;
}
.install-lead {
  max-width: 760px;
  margin: -12px auto 28px;
  font: 400 16px/1.65 var(--font-sans);
  color: var(--text-secondary);
}

.install-pick {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 0 auto 16px;
  max-width: 920px;
}
.install-option {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 28px 28px 22px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  text-align: left;
  cursor: pointer;
  transition: border-color var(--t-fast), background var(--t-fast),
    transform var(--t-fast);
}
.install-option:hover {
  border-color: var(--accent);
  background: var(--accent-subtle);
  transform: translateY(-2px);
}
.install-option .io-label {
  font: 500 22px var(--font-sans);
  letter-spacing: -0.01em;
  color: var(--text);
}
.install-option .io-hint {
  font: 400 13px var(--font-sans);
  color: var(--text-tertiary);
}
.install-option .io-cmd {
  display: block;
  margin-top: 6px;
  padding: 10px 12px;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  font: 500 12px/1.5 var(--font-mono);
  color: var(--accent);
  word-break: break-all;
}
.install-option .io-copy {
  margin-top: auto;
  padding-top: 8px;
  font: 500 10px var(--font-mono);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-ghost);
}
.install-option:hover .io-copy {
  color: var(--accent);
}
.install-option.copied {
  border-color: var(--accent);
  background: var(--accent-subtle);
}
.install-option.copied .io-copy::before {
  content: "copied · ";
  color: var(--accent);
}

.install-option.primary {
  max-width: 920px;
  width: 100%;
  margin: 0 auto 14px;
  padding: 24px 28px 20px;
  background: linear-gradient(180deg, var(--accent-subtle), transparent);
  border: 1.5px solid var(--accent);
  box-shadow: 0 12px 40px rgba(47, 202, 148, 0.15);
}
.install-option.primary:hover {
  box-shadow: 0 18px 50px rgba(47, 202, 148, 0.25);
  transform: translateY(-2px);
}
.install-option.primary .io-kicker {
  font: 500 11px var(--font-mono);
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 2px;
}
.install-option.primary .io-label {
  font-size: 24px;
}
.install-option.primary .io-cmd {
  max-width: 740px;
  font-size: 12.5px;
}

.install-mode-label {
  margin: 0;
  font: 500 10px var(--font-mono);
  letter-spacing: 1.7px;
  text-transform: uppercase;
  color: var(--text-ghost);
}

.install-switcher {
  max-width: 920px;
  margin: 0 auto 16px;
  padding-top: 4px;
}
.install-switch-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 10px;
}
.install-tabs {
  display: inline-flex;
  padding: 3px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
}
.install-tab {
  appearance: none;
  border: 0;
  border-radius: calc(var(--r-xs) - 2px);
  padding: 7px 10px;
  background: transparent;
  color: var(--text-tertiary);
  font: 500 10px var(--font-mono);
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast);
}
.install-tab:hover {
  color: var(--text);
}
.install-tab.is-active,
.install-tab[aria-selected="true"] {
  background: var(--accent-subtle);
  color: var(--accent);
}
.install-carousel {
  position: relative;
}
.install-panel {
  width: 100%;
  padding: 18px 20px 16px;
  gap: 7px;
  background: transparent;
  border: 1px dashed var(--border);
  box-shadow: none;
}
.install-panel[hidden] {
  display: none;
}
.install-panel:hover {
  background: var(--surface);
  border-style: solid;
  border-color: var(--accent);
  transform: none;
}
.install-panel .io-kicker {
  font: 500 10px var(--font-mono);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
}
.install-panel .io-label {
  font-size: 18px;
  color: var(--text);
  font-weight: 500;
}
.install-panel .io-hint {
  font-size: 12px;
}
.install-panel .io-cmd {
  margin-top: 5px;
  padding: 9px 10px;
  font-size: 11px;
  background: var(--surface);
  color: var(--text-secondary);
}
.install-panel:hover .io-cmd {
  color: var(--accent);
}

.install-verify {
  max-width: 920px;
  margin: 12px auto 18px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  background: rgba(255, 255, 255, 0.015);
  text-align: left;
}
.install-verify summary {
  padding: 12px 14px;
  color: var(--text-secondary);
  cursor: pointer;
  font: 500 11px var(--font-mono);
  letter-spacing: 1.4px;
  text-transform: uppercase;
}
.install-verify summary:hover {
  color: var(--accent);
}
.install-verify[open] summary {
  border-bottom: 1px solid var(--border);
}
.verify-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 14px;
}
.verify-grid div {
  min-width: 0;
}
.verify-k {
  display: block;
  margin-bottom: 6px;
  color: var(--text-ghost);
  font: 500 10px var(--font-mono);
  letter-spacing: 1.2px;
  text-transform: uppercase;
}
.verify-grid code {
  display: block;
  padding: 8px 10px;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  color: var(--accent);
  font: 500 11px/1.5 var(--font-mono);
  overflow-wrap: anywhere;
}
.install-verify p {
  margin: 0;
  padding: 0 14px 14px;
  color: var(--text-tertiary);
  font: 400 12px/1.5 var(--font-sans);
}
.verify-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 14px 14px;
}
.verify-links a {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  color: var(--text-secondary);
  background: var(--bg-deep);
  font: 500 11px var(--font-sans);
  transition: color var(--t-fast), border-color var(--t-fast),
    background var(--t-fast);
}
.verify-links a:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-subtle);
}

.install-safety-strip {
  max-width: 920px;
  margin: 0 auto 20px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}
.install-safety-strip a {
  min-width: 0;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  background: color-mix(in srgb, var(--surface) 74%, transparent);
  text-align: left;
  transition: border-color var(--t-fast), background var(--t-fast);
}
.install-safety-strip a:hover {
  border-color: var(--accent);
  background: var(--accent-subtle);
}
.install-safety-strip span {
  display: block;
  margin-bottom: 4px;
  color: var(--text-ghost);
  font: 500 10px var(--font-mono);
  letter-spacing: 1.2px;
  text-transform: uppercase;
}
.install-safety-strip strong {
  display: block;
  color: var(--text);
  font: 500 13px/1.35 var(--font-sans);
  overflow-wrap: anywhere;
}

.install-after {
  max-width: 560px;
  margin: 20px auto 0;
  text-align: left;
}
.install-after .ia-k {
  margin: 0 0 10px;
  font: 500 10px var(--font-mono);
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--text-ghost);
  text-align: center;
}
.install-after ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 6px;
}
.install-after li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
}
.install-after code {
  font: 500 12px var(--font-mono);
  color: var(--accent);
  word-break: break-all;
}
.install-after li span {
  font: 400 11px var(--font-mono);
  letter-spacing: 0.5px;
  text-transform: lowercase;
  color: var(--text-ghost);
  white-space: nowrap;
}

.install-option.primary .io-cmd {
  word-break: normal;
  overflow-wrap: break-word;
  hyphens: none;
}

/* ══════════════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════════════ */
.footer {
  padding: 36px var(--side-pad) 24px;
  border-top: 1px solid var(--border);
  background: var(--bg-deep);
  position: relative;
  z-index: 1;
}
.foot-row {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  padding-bottom: 24px;
}
.foot-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  line-height: 1;
  margin-right: auto;
}
.foot-nav,
.foot-legal {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  font: 500 12px var(--font-mono);
  letter-spacing: 0.3px;
}
.foot-nav a,
.foot-legal a {
  color: var(--text-tertiary);
  transition: color var(--t-fast);
}
.foot-nav a:hover,
.foot-legal a:hover {
  color: var(--accent);
}
.foot-legal {
  padding-left: 20px;
  border-left: 1px solid var(--border);
}

.foot-bottom {
  max-width: var(--container);
  margin: 0 auto;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font: 500 10px var(--font-mono);
  color: var(--text-ghost);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════════ */
@media (max-width: 960px) {
  .topnav {
    display: none;
  }
  .hero {
    min-height: auto;
    align-items: flex-start;
    padding-top: 104px;
    padding-bottom: 64px;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-terminal {
    margin-top: 0;
  }
  .brain-stage {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .price-grid {
    grid-template-columns: 1fr;
  }
  .board-bullets {
    grid-template-columns: 1fr;
  }
  .closed-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .module-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .install-pick {
    grid-template-columns: 1fr;
  }
  .foot-row {
    gap: 20px;
  }
  .section-head {
    grid-template-columns: 60px 1fr;
  }
  .section-head.right {
    direction: ltr;
  }
  .trust-row {
    grid-template-columns: 1fr;
  }
  .trust-head {
    display: none;
  }
  .trust-label {
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px !important;
  }
  .trust-row:not(.trust-head) > div {
    padding: 12px 24px !important;
  }
  .orbit-stage {
    height: 500px;
  }
  .orbit-ring.r3 {
    width: 480px;
    height: 480px;
  }
  .orbit-node[data-ring="3"] {
    --r: 240px;
  }
}

@media (max-width: 600px) {
  .closed-grid {
    grid-template-columns: 1fr;
  }
  .foot-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .foot-legal {
    padding-left: 0;
    border-left: none;
  }
  .hero-title {
    font-size: clamp(28px, 8.2vw, 36px);
  }
  .subdomain-switcher {
    display: none;
  }
}

/* ══════════════════════════════════════════════════════════════
   MOBILE PASS · tighten every section for tablet/phone
   ══════════════════════════════════════════════════════════════ */
@media (max-width: 960px) {
  .section {
    padding: clamp(64px, 8vw, 96px) var(--side-pad);
  }
  .section-head {
    grid-template-columns: 60px 1fr;
    gap: 24px;
    margin-bottom: 48px;
  }
  .section-title {
    font-size: clamp(32px, 5.5vw, 56px);
    line-height: 1.05;
    letter-spacing: -0.03em;
  }

  /* BOARD · absolute stage becomes vertical stack on mobile */
  .board-stage {
    height: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background-size: 28px 28px;
  }
  .board-cables {
    display: none;
  }
  .board-stepper {
    display: flex;
    gap: 6px;
    padding: 4px;
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    background: color-mix(in srgb, var(--bg-deep) 70%, transparent);
    scrollbar-width: none;
  }
  .board-stepper::-webkit-scrollbar {
    display: none;
  }
  .board-stepper button {
    flex: 1 0 auto;
    min-height: 34px;
    padding: 8px 10px;
    border-radius: var(--r-sm);
    color: var(--text-tertiary);
    font: 500 10px var(--font-mono);
    letter-spacing: 0.8px;
    text-transform: uppercase;
    transition: color var(--t-fast), background var(--t-fast);
  }
  .board-stepper button.active {
    color: var(--accent);
    background: var(--accent-subtle);
  }
  .board-node {
    position: static !important;
    left: auto !important;
    top: auto !important;
    width: 100%;
    box-shadow: none;
  }
  .board-node:not(.is-selected) {
    display: none;
  }
  .board-inspector {
    position: static;
    width: 100%;
    order: 6;
  }
  .board-hint {
    display: none;
  }

  /* SWARM · tighter overlay; stage stays as full-section background */
  .swarm.section {
    min-height: 820px;
    padding-top: 64px;
    padding-bottom: 260px;
  }
  .swarm-canvas {
    inset: 16% 0 -2% 0;
    width: 100%;
    height: 88%;
    opacity: 0.46;
  }
  .swarm-inner {
    padding-inline: var(--side-pad);
  }
  .swarm-card {
    width: calc(100% - 54px);
    max-width: 370px;
    margin-left: 0;
    padding: 22px;
  }
  .swarm-overlay {
    bottom: 16px;
    right: 16px;
    gap: 8px;
  }
  .swarm-stat {
    padding: 10px 12px;
    min-width: 160px;
  }

  /* BRAIN · collapse grid, shrink Spark-logo loop viz */
  .brain-stage {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .spark-loop {
    max-width: 360px;
  }
  .sl-num {
    font-size: 18px;
  }
  .sl-sub {
    font-size: 8px;
  }
  .sl-stat {
    padding: 6px 12px;
    margin-top: 14px;
  }

  /* TRUST · glyph goes inline when row stacks, so it can't land under wrapped text */
  .trust-row:not(.trust-head) > .trust-spark,
  .trust-row:not(.trust-head) > .trust-other {
    padding: 14px 20px !important;
    display: flex;
    align-items: baseline;
    gap: 10px;
  }
  .trust-spark::before,
  .trust-other::before {
    position: static;
    flex: 0 0 auto;
    line-height: 1.2;
    font-size: 15px;
    top: auto;
    left: auto;
  }
  .trust-other::before {
    font-size: 16px;
  }

  /* CLOSED · tighter giant title + lead on mobile, with breathing room */
  .closed {
    padding-left: 8px;
    padding-right: 8px;
  }
  .closed-inner {
    padding: 0 4px;
  }
  .closed-title {
    font-size: clamp(34px, 8vw, 52px);
    margin-bottom: 20px;
    max-width: none;
    letter-spacing: -0.03em;
  }
  .closed-lead {
    font-size: 16px;
    margin-bottom: 16px;
    line-height: 1.55;
  }
  .closed-line {
    font-size: 19px;
    margin-bottom: 48px;
    line-height: 1.35;
  }
  .closed-marker {
    font-size: 10px;
    gap: 10px;
    margin-bottom: 28px;
    letter-spacing: 1.4px;
    flex-wrap: wrap;
  }
}

@media (max-width: 720px) {
  /* TOPBAR · strip to essentials */
  .topbar {
    gap: 12px;
    padding: 14px var(--side-pad);
  }
  .brand-slash {
    display: none;
  }
  .theme-toggle {
    display: none;
  }
  .topbar-ecosystem {
    display: none;
  }
  .cta-install {
    padding: 8px 12px;
    font-size: 12px;
  }
  .cta-install .cta-arrow {
    display: none;
  }

  /* SPEC LOOP · wrap instead of horizontal overflow */
  .sl-steps {
    flex-wrap: wrap;
    gap: 6px 10px;
  }
  .sl-steps li:not(:last-child)::after {
    margin-left: 6px;
  }

  /* HERO · full-width CTAs on narrow */
  .hero {
    padding-top: 92px;
    padding-bottom: 44px;
  }
  .hero-left {
    gap: 16px;
  }
  .hero-title {
    max-width: 14em;
  }
  .hero-lead {
    max-width: none;
    font-size: 14px;
    line-height: 1.5;
  }
  .hero-lead:nth-of-type(2) {
    display: none;
  }
  .hero-cta-row {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }
  .hero-cta-row > * {
    width: 100%;
    justify-content: center;
  }
  .hero-proof-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
  }
  .hero-proof-strip span {
    padding: 9px 6px;
    font-size: 10px;
  }
  .hero-proof-strip strong {
    font-size: 13px;
  }
  .hero-fineprint {
    font-size: 10px;
    line-height: 1.45;
  }
  .story-rail {
    position: sticky;
    top: 58px;
    z-index: 80;
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: max-content;
    gap: 6px;
    padding: 8px var(--side-pad);
    overflow-x: auto;
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    scrollbar-width: none;
  }
  .story-rail::-webkit-scrollbar {
    display: none;
  }
  .story-rail a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 32px;
    padding: 7px 10px;
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    background: var(--surface);
    color: var(--text-tertiary);
    font: 500 10px var(--font-mono);
    letter-spacing: 0.7px;
    text-transform: uppercase;
  }
  .story-rail span {
    color: var(--accent);
  }

  /* SECTIONS · tighter */
  .section {
    padding: 56px var(--side-pad);
  }
  .section-head {
    grid-template-columns: 1fr;
    gap: 14px;
    margin-bottom: 32px;
  }
  .section-title {
    font-size: clamp(28px, 7vw, 40px);
    letter-spacing: -0.025em;
  }
  .section-lead {
    font-size: 14px;
    line-height: 1.5;
    margin-top: 12px;
  }

  /* Override right/center section variants to plain-left on mobile */
  .section-head.right {
    direction: ltr;
    text-align: left;
  }
  .section-head.center {
    text-align: left;
  }
  .section-head.center .num,
  .section-head.center .section-lead {
    margin-left: 0;
    margin-right: 0;
  }
  .section-head.center .num {
    display: inline-block;
  }

  /* PRICING · tighter cards */
  .price-card {
    padding: 28px 20px;
  }
  .price-compare .pc-row {
    grid-template-columns: 1fr;
    gap: 2px;
    padding: 12px 16px;
  }
  .pc-note {
    grid-column: auto;
  }
}

@media (max-width: 560px) {
  .module-grid {
    grid-template-columns: 1fr;
  }
  .mod-card {
    padding: 20px;
  }
  .outcomes .section-title {
    font-size: clamp(30px, 9vw, 42px);
    max-width: 12em;
    text-wrap: balance;
  }
  .outcome-grid {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(244px, 78vw);
    grid-template-columns: none;
    gap: 10px;
    margin-inline: calc(var(--side-pad) * -1);
    padding: 0 var(--side-pad) 8px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }
  .outcome-grid::-webkit-scrollbar {
    display: none;
  }
  .outcome-card {
    scroll-snap-align: start;
    min-height: 190px;
    padding: 18px;
  }
  .oc-icon {
    width: 38px;
    height: 38px;
  }
  .oc-copy {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .wake-report {
    grid-template-columns: 1fr;
    padding: 14px;
  }
  .wake-report-main {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .wake-report p {
    grid-column: auto;
  }
  .sf-count {
    font-size: 18px;
  }
  .board-stage {
    padding: 14px;
  }
  .board .section-lead,
  .brain .section-lead {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .board-bullets {
    gap: 8px;
  }
  .board-bullets p,
  .loop-steps p,
  .swarm-detail {
    font-size: 13px;
    line-height: 1.45;
  }
  .loop-steps li {
    padding: 14px 0 14px 24px;
  }
  .loop-steps h4 {
    font-size: 18px;
  }
  .loop-steps p {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .build-stage {
    margin-top: 28px;
    gap: 22px;
  }
  .build-core {
    gap: 18px;
    padding: 20px 0 34px;
  }
  .build-note {
    text-align: left;
  }
  .build-note .overline {
    margin-bottom: 14px;
  }
  .build-note p {
    margin-bottom: 14px;
    font-size: 14px;
    line-height: 1.5;
  }
  .build-note-close {
    margin-top: 14px !important;
    padding-top: 14px;
  }
  .build-facts {
    margin: 4px 0 14px;
    gap: 6px;
  }
  .build-facts span {
    padding: 8px 6px;
    font-size: 10px;
  }
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
  .build-stage .brick {
    opacity: 1;
    transform: none;
    animation: none;
  }
  .build-stage .brick-wire {
    opacity: 1;
  }

  /* FOOTER · single column on very narrow */
  .foot-row {
    gap: 16px;
  }
  .foot-nav,
  .foot-legal {
    gap: 14px;
    font-size: 11px;
  }
  .foot-bottom {
    font-size: 10px;
  }
}

/* INSTALL · mobile polish (kept late in the file so it wins over
   .section padding resets from the generic @960 / @720 mobile passes) */
@media (max-width: 600px) {
  /* Unify the inner wrapper's side padding so title, lead, boxes,
     and after-list all share one consistent left/right edge */
  .install {
    padding-inline: 0;
  }
  .install-inner {
    padding-inline: 18px;
  }
  .install-title {
    margin-bottom: 18px;
  }
  .install-lead {
    font-size: 14px;
    line-height: 1.45;
    margin: -8px auto 16px;
  }

  .install-pick {
    gap: 10px;
  }
  .install-option {
    padding: 20px 18px 16px;
  }
  .install-option .io-label {
    font-size: 18px;
  }
  .install-option .io-cmd {
    font-size: 11.5px;
    padding: 9px 10px;
  }
  .install-option.primary {
    padding: 18px;
    margin-bottom: 12px;
  }
  .install-option.primary .io-label {
    font-size: 20px;
  }
  .install-option.primary .io-cmd {
    max-height: 82px;
    overflow: hidden;
    font-size: 11.5px;
  }
  .install-switcher {
    margin-bottom: 10px;
  }
  .install-switch-head {
    align-items: stretch;
    flex-direction: column;
    gap: 8px;
  }
  .install-tabs {
    width: 100%;
  }
  .install-tab {
    flex: 1;
    padding-inline: 6px;
  }
  .install-panel {
    padding: 12px 14px;
  }
  .install-panel .io-label {
    font-size: 16px;
  }
  .install-panel .io-cmd {
    max-height: 52px;
    overflow: hidden;
    font-size: 10.5px;
  }
  .install-verify {
    margin-block: 8px 10px;
  }
  .verify-grid {
    grid-template-columns: 1fr;
  }
  .verify-links {
    padding-inline: 12px;
  }
  .install-safety-strip {
    display: flex;
    overflow-x: auto;
    gap: 6px;
    margin-inline: -18px;
    margin-bottom: 12px;
    padding: 0 18px 4px;
    scrollbar-width: none;
  }
  .install-safety-strip::-webkit-scrollbar {
    display: none;
  }
  .install-safety-strip a {
    flex: 0 0 190px;
    padding: 10px 12px;
  }

  /* INSTALL-AFTER · drop the per-item cards, render as a tight chip row */
  .install-after {
    margin-top: 16px;
  }
  .install-after .ia-k {
    margin-bottom: 8px;
  }
  .install-after ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
  }
  .install-after li {
    display: inline-flex;
    grid-template-columns: none;
    padding: 6px 10px;
    gap: 8px;
  }
  .install-after li span {
    display: none;
  }
  .install-after code {
    font-size: 11px;
  }
}

@media (max-width: 720px), (pointer: coarse) {
  .bg-particles,
  .hero-field {
    display: none !important;
  }
  .board-cables path,
  .brick-wire::before,
  .sl-flow,
  .sl-marker {
    animation-duration: 0.01ms !important;
  }
  .grain {
    opacity: 0.035;
  }
}

@media (max-width: 420px) {
  :root {
    --side-pad: 22px;
  }
  .topbar {
    gap: 8px;
    padding: 12px var(--side-pad);
  }
  .brand-name {
    font-size: 14px;
  }
  .hero-title {
    font-size: clamp(28px, 8.7vw, 34px);
    line-height: 1.08;
  }
  .section-title {
    font-size: clamp(24px, 9vw, 34px);
  }
  .hero-spec {
    padding: 14px;
    gap: 14px;
  }
  .spec-name {
    font-size: 13px;
  }
  .spec-meta {
    font-size: 10px;
    gap: 4px;
  }
  .slash-tag {
    padding: 2px 6px;
    font-size: 9px;
  }
  .mastery .m-name {
    font-size: 11px;
  }
  .mastery .m-ver {
    font-size: 10px;
  }
  .m-meta {
    font-size: 9px;
  }
  .oc-title {
    font-size: 15px;
  }
  .oc-copy {
    font-size: 13px;
  }
  .cursor-blocks .cb-block {
    width: 5px;
  }

  /* PRICING · tighter */
  .price-amount .amount {
    font-size: 40px;
  }
  .install-option .io-cmd {
    font-size: 11px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .loader {
    display: none;
  }
}