@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&display=swap");

:root,
:root[data-theme="dark"] {
  color-scheme: dark;
  --bd-bg: #030715;
  --bd-bg-2: #061737;
  --bd-ink: #f2f8ff;
  --bd-muted: #a7badc;
  --bd-soft: #c3ccdf;
  --bd-line: rgba(110, 205, 255, 0.22);
  --bd-line-strong: rgba(110, 205, 255, 0.44);
  --bd-surface: rgba(8, 18, 42, 0.62);
  --bd-surface-2: rgba(14, 26, 58, 0.76);
  --bd-blue: #2f89ff;
  --bd-cyan: #58ddff;
  --bd-red: #ff769d;
  --bd-amber: #ffbd55;
  --bd-orange: #ff9c57;
  --bd-green: #7af4de;
  --bd-lavender: #a994ff;
  --bd-shadow: 0 28px 90px rgba(0, 0, 0, 0.52);
  --bd-mono: "JetBrains Mono", ui-monospace, monospace;
  --bd-sans: "Space Grotesk", "Inter Tight", system-ui, sans-serif;

  --bg: var(--bd-bg);
  --bg-2: #061229;
  --bg-3: #091b38;
  --surface: var(--bd-surface);
  --panel: var(--bd-surface);
  --panel-2: var(--bd-surface-2);
  --line: var(--bd-line);
  --line-2: rgba(110, 205, 255, 0.32);
  --ink: var(--bd-ink);
  --ink-dim: var(--bd-muted);
  --ink-mute: #8fa5c9;
  --accent: var(--bd-cyan);
  --accent-2: var(--bd-blue);
  --accent-3: rgba(88, 221, 255, 0.13);
  --good: var(--bd-green);
  --good-2: #91f6e8;
  --good-3: rgba(122, 244, 222, 0.12);
  --shadow-sm: 0 12px 30px rgba(0, 0, 0, 0.28);
  --shadow-md: var(--bd-shadow);
  --cream: var(--bd-bg);
  --cream-2: #07142c;
  --cream-3: #0b1e42;
  --red: var(--bd-cyan);
  --red-soft: #8be8ff;
  --red-bg: rgba(88, 221, 255, 0.13);
  --gold: var(--bd-amber);
}

html {
  overflow-x: clip;
  scroll-behavior: smooth;
}

* {
  min-width: 0;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(62% 58% at 74% 28%, rgba(55, 201, 255, 0.18), transparent 64%),
    radial-gradient(46% 42% at 63% 45%, rgba(255, 95, 142, 0.11), transparent 62%),
    radial-gradient(36% 34% at 80% 60%, rgba(255, 171, 75, 0.08), transparent 60%),
    linear-gradient(120deg, #030715 0%, #061737 48%, #031229 100%) !important;
  color: var(--bd-ink) !important;
  font-family: var(--bd-sans) !important;
  letter-spacing: 0 !important;
  overflow-x: clip;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.10;
  mix-blend-mode: screen;
  background: repeating-linear-gradient(
    to bottom,
    rgba(108, 222, 255, 0.18) 0,
    rgba(108, 222, 255, 0.18) 1px,
    transparent 1px,
    transparent 5px
  );
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(88, 221, 255, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, rgba(88, 221, 255, 0.035) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: radial-gradient(circle at 70% 30%, black, transparent 72%);
}

a {
  color: inherit;
}

::selection {
  background: rgba(88, 221, 255, 0.34);
  color: #ffffff;
}

.topbar,
.topbar-new {
  max-width: none !important;
  margin: 0 !important;
  padding: 22px clamp(18px, 2.6vw, 40px) 28px !important;
  background: rgba(3, 7, 21, 0.70) !important;
  border-bottom: 1px solid rgba(110, 205, 255, 0.16) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: none !important;
}

.brand,
.brand-new {
  color: var(--bd-ink) !important;
  font-family: var(--bd-sans) !important;
  font-size: 21px !important;
  font-weight: 700 !important;
  letter-spacing: 0 !important;
  gap: 14px !important;
}

.brand-mark,
.brand-logo,
.brand-logo-new {
  border-radius: 8px !important;
  box-shadow: 0 0 30px rgba(79, 212, 255, 0.25);
}

.brand-mark {
  background:
    radial-gradient(circle at 72% 26%, #ff914d, transparent 38%),
    linear-gradient(135deg, #62e4ff, #5aa2ff 46%, #ffd94a) !important;
  color: transparent !important;
}

.nav,
.nav-new,
.topbar-right {
  color: var(--bd-muted) !important;
  font-family: var(--bd-mono) !important;
  font-size: 12px !important;
  letter-spacing: 0.12em !important;
  text-transform: uppercase;
}

.brand + .nav,
.brand-new + .nav-new,
.brand + .topbar-right,
.brand-new + .topbar-right {
  margin-left: clamp(22px, 3vw, 42px) !important;
}

.nav a:hover,
.nav-new a:hover,
.topbar-right a:hover {
  color: var(--bd-cyan) !important;
}

.theme-switcher {
  display: none !important;
}

.shell,
.research-shell,
.main-content,
.page,
main.shell {
  max-width: 1440px !important;
}

.main-content,
.section,
.page-hero,
.cold-open,
.final-close,
.research-nudge,
.case-study,
.references-section {
  overflow-wrap: anywhere;
}

.main-content {
  max-width: min(860px, 100%) !important;
}

.layout,
.methodology-layout {
  max-width: min(1180px, calc(100vw - 48px)) !important;
  grid-template-columns: minmax(140px, 220px) minmax(0, 1fr) !important;
  gap: clamp(24px, 4vw, 72px) !important;
}

.toc {
  max-width: 220px !important;
}

.shell,
main.shell,
.main-content {
  padding-left: clamp(18px, 2.6vw, 40px) !important;
  padding-right: clamp(18px, 2.6vw, 40px) !important;
}

.hero,
.cold-open,
.page-hero {
  position: relative;
}

.hero-copy {
  gap: 0 !important;
}

body.landing-reveal .hero-sub,
body.landing-reveal .cta-row {
  animation: none !important;
  opacity: 1 !important;
  transform: none !important;
}

.hero::before,
.cold-open::before,
.page-hero::before {
  content: "";
  position: absolute;
  left: clamp(18px, 2.6vw, 40px);
  top: 18px;
  width: 40px;
  height: 2px;
  background: var(--bd-ink);
  box-shadow: -40px 0 0 rgba(255,255,255,0.0);
}

.kicker,
.eyebrow,
.section-kicker,
.section-label,
.page-kicker,
.method-kicker,
.fig-label,
.tag,
.stat-label,
.attribution-built,
.edu-intro,
.ds-eyebrow {
  color: var(--bd-cyan) !important;
  font-family: var(--bd-mono) !important;
  letter-spacing: 0.20em !important;
  text-transform: uppercase !important;
}

.kicker,
.tag,
.mode-label,
.input-hint,
.job-id,
.step-micro,
.ds-history-note,
.transcript-time,
.code,
code,
pre {
  font-family: var(--bd-mono) !important;
}

h1,
h2,
h3,
h4,
.hero-title,
.page-title,
.section-title,
.status-headline,
.cold-title,
.page-hero h1 {
  color: var(--bd-ink) !important;
  font-family: var(--bd-sans) !important;
  font-weight: 700 !important;
  letter-spacing: 0 !important;
}

h1 em,
.hero-title em,
.page-title em,
.cold-title em,
h1 span,
.hero h1 span {
  color: var(--bd-cyan) !important;
  background: linear-gradient(90deg, #e9fbff 0%, var(--bd-cyan) 42%, var(--bd-blue) 100%) !important;
  -webkit-background-clip: text !important;
  background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  text-shadow: 0 0 24px rgba(79, 212, 255, 0.30);
}

.hero .hero-title .hero-word-feel,
h1.hero-title .hero-word-feel {
  display: inline-block !important;
  font-family: var(--bd-sans) !important;
  font-style: normal !important;
  font-weight: 800 !important;
  letter-spacing: 0 !important;
  white-space: nowrap !important;
  transform: none !important;
}

p,
li,
.page-sub,
.hero-sub,
.hero-cta-sub,
.section-desc,
.status-sub,
.tip-text,
.step-label,
.honest-eta,
.stay-on-tab {
  color: var(--bd-soft) !important;
}

.btn,
.btn-primary,
.btn-ghost,
.btn-inline,
.nav-cta,
.nav-cta-new,
.btn-primary-gold,
.btn-ghost-gold,
button,
input,
textarea,
select {
  font-family: var(--bd-sans) !important;
}

.btn,
.btn-primary,
.btn-ghost,
.btn-inline,
.nav-cta,
.nav-cta-new,
.btn-primary-gold,
.btn-ghost-gold {
  border-radius: 8px !important;
  border: 1px solid var(--bd-line-strong) !important;
  background: rgba(8, 18, 42, 0.76) !important;
  color: var(--bd-ink) !important;
  box-shadow: 0 0 0 1px rgba(88, 221, 255, 0.08), 0 18px 44px rgba(0, 0, 0, 0.32) !important;
}

.btn-primary,
.btn-primary-gold,
.nav-cta-new,
button[type="submit"]:not(:disabled),
.mode-pill.active,
.nav-cta {
  background: linear-gradient(180deg, rgba(88, 221, 255, 0.98), rgba(47, 137, 255, 0.92)) !important;
  color: #051020 !important;
  border-color: rgba(88, 221, 255, 0.76) !important;
  text-shadow: none !important;
}

.btn:hover,
.btn-primary:hover,
.btn-ghost:hover,
.btn-inline:hover,
.nav-cta-new:hover,
.btn-primary-gold:hover,
.btn-ghost-gold:hover {
  border-color: var(--bd-cyan) !important;
  color: var(--bd-ink) !important;
  transform: translateY(-1px);
}

.card,
.input-card,
.tip,
.status-card,
.deep-scope,
.honest-eta,
.edu-card,
.media-console,
.examples-row,
.research-nudge,
.case-card,
.limit-card,
.citation-card,
.source-card,
.method-card,
.pipeline-step,
.step-card,
.dimension-card,
.openq-card,
.feature-card,
.info-card,
.section-card,
.panel,
.graph-card,
.metric-card,
.dropzone,
.name-row,
.toast,
.ds-log,
.steps li,
.mode-pill,
.example-btn,
textarea,
input,
select {
  background: rgba(8, 18, 42, 0.62) !important;
  border-color: var(--bd-line) !important;
  color: var(--bd-ink) !important;
  box-shadow: 0 0 0 1px rgba(88, 221, 255, 0.04), 0 18px 52px rgba(0, 0, 0, 0.20) !important;
}

.input-card:focus-within,
.dropzone.drag,
textarea:focus,
input:focus,
select:focus,
button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--bd-cyan) !important;
  outline-offset: 3px !important;
  box-shadow: 0 0 0 4px rgba(88, 221, 255, 0.15), 0 18px 52px rgba(0, 0, 0, 0.24) !important;
}

textarea,
input,
select {
  caret-color: var(--bd-cyan);
}

textarea::placeholder,
input::placeholder {
  color: rgba(167, 186, 220, 0.70) !important;
}

.hero-stage,
.brain-stage,
.hero-brain-bg,
.compare-stage,
.edu-brain-wrap,
.visual-card,
.canvas-wrap,
.brain-panel {
  background:
    radial-gradient(ellipse at 50% 34%, rgba(88, 221, 255, 0.11), transparent 64%),
    linear-gradient(180deg, rgba(6, 14, 30, 0.92), rgba(2, 5, 13, 0.96)) !important;
  border: 1px solid var(--bd-line) !important;
  border-radius: 0 !important;
  box-shadow: var(--bd-shadow) !important;
  max-width: 100% !important;
}

.edu-brain-wrap {
  border-color: var(--bd-line) !important;
}

.edu-brain-canvas {
  background: transparent !important;
}

#case-study,
.case-study {
  display: none !important;
}

.hero-use-line {
  display: none !important;
}

.compare-grid {
  grid-template-columns: minmax(220px, 0.72fr) minmax(280px, 0.86fr) minmax(360px, 1.32fr) !important;
  align-items: stretch !important;
}

.compare-stage {
  min-height: 360px !important;
}

.compare-hotspot {
  position: absolute;
  width: clamp(38px, 5.2vw, 74px);
  height: clamp(38px, 5.2vw, 74px);
  border-radius: 999px;
  pointer-events: none;
  mix-blend-mode: screen;
  opacity: 0.88;
  filter: blur(2px);
}

.hotspot-personal {
  left: 48%;
  top: 30%;
  background: radial-gradient(circle, rgba(88, 221, 255, 0.72) 0%, rgba(88, 221, 255, 0.28) 42%, transparent 72%);
  box-shadow: 0 0 36px rgba(88, 221, 255, 0.32);
}

.hotspot-gut {
  left: 56%;
  top: 48%;
  background: radial-gradient(circle, rgba(255, 118, 157, 0.62) 0%, rgba(255, 118, 157, 0.24) 44%, transparent 72%);
  box-shadow: 0 0 34px rgba(255, 118, 157, 0.26);
}

.hotspot-language {
  left: 34%;
  top: 44%;
  background: radial-gradient(circle, rgba(122, 244, 222, 0.52) 0%, rgba(122, 244, 222, 0.18) 46%, transparent 72%);
  box-shadow: 0 0 30px rgba(122, 244, 222, 0.22);
}

.readout {
  gap: 18px !important;
  padding: 26px !important;
}

.readout-eyebrow {
  color: var(--bd-cyan) !important;
}

.readout-headline {
  font-size: clamp(18px, 1.7vw, 26px) !important;
  line-height: 1.2 !important;
  color: var(--bd-ink) !important;
  border: 0 !important;
  padding: 0 !important;
}

.readout-dims {
  gap: 12px !important;
}

.rdim {
  grid-template-columns: minmax(130px, 1fr) minmax(92px, 0.55fr) 52px !important;
}

.rdim-label {
  font-size: 13px !important;
  color: var(--bd-soft) !important;
}

.rdim-track {
  height: 7px !important;
  background: rgba(110, 205, 255, 0.14) !important;
}

.rdim-val {
  font-size: 12px !important;
}

.readout-insight {
  margin-top: auto !important;
  padding: 18px 20px !important;
  font-size: 15px !important;
  line-height: 1.55 !important;
  background: rgba(8, 18, 42, 0.78) !important;
  border-color: rgba(88, 221, 255, 0.26) !important;
  border-left-color: var(--bd-cyan) !important;
}

.lens-list {
  display: grid !important;
  grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  gap: 10px !important;
}

.lens-stage {
  min-height: 420px !important;
}

.hero-dim-card,
.hero-stage-foot,
.hero-pill,
.eta-pill,
.pill,
.chip,
.signal-chip,
.meta-lockup,
.stat-pill,
.ds-step,
.step-dot,
.input-tag,
.tip-num {
  background: rgba(6, 14, 30, 0.78) !important;
  border: 1px solid var(--bd-line) !important;
  color: var(--bd-ink) !important;
  box-shadow: 0 0 22px rgba(88, 221, 255, 0.12) !important;
}

.hero-pill.is-active,
.ds-step.is-active .ds-step-icon,
.steps li.active .step-dot,
.input-tag.a,
.tip-num {
  background: var(--bd-cyan) !important;
  color: #051020 !important;
  border-color: var(--bd-cyan) !important;
}

.input-tag.b {
  background: rgba(255, 118, 157, 0.18) !important;
  color: #ffd6e2 !important;
  border-color: rgba(255, 118, 157, 0.55) !important;
}

.mode-pill,
.example-btn {
  border-radius: 999px !important;
}

.mode-pill.active {
  box-shadow: 0 0 28px rgba(88, 221, 255, 0.35) !important;
}

.top-readout-lite {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--bd-muted);
  font-family: var(--bd-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.top-readout-lite::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bd-cyan);
  box-shadow: 0 0 18px rgba(98, 228, 255, 0.72);
}

.action-row,
.footer,
footer,
.section,
.references-section,
.education,
.main-content,
.page-head,
.report-section {
  border-color: rgba(110, 205, 255, 0.15) !important;
}

.section,
.references-section,
.education,
.case-study,
.research-nudge,
.final-close,
.montage-section,
.openq-section {
  position: relative;
}

.section::after,
.references-section::after,
.final-close::after {
  content: "";
  display: block;
  height: 1px;
  margin-top: clamp(28px, 4vw, 56px);
  background: linear-gradient(90deg, transparent, rgba(88, 221, 255, 0.26), transparent);
}

.grid-line,
.paper-rule,
.ruled-lines {
  opacity: 0.18 !important;
}

table,
.table,
.comparison-table {
  background: rgba(8, 18, 42, 0.56) !important;
  border-color: var(--bd-line) !important;
  color: var(--bd-soft) !important;
}

img,
svg,
canvas,
video {
  max-width: 100%;
}

.process-graph,
.graph-track,
.step-vis,
.timeline,
.chart,
.chart-wrap,
.graph-card,
.brain-shell,
.systems-grid,
.compare-grid,
.case-grid,
.science-stats,
.citation-badges {
  max-width: 100% !important;
}

.process-graph,
.step-vis,
.graph-card,
.chart-wrap,
pre,
code {
  overflow-x: auto !important;
}

.graph-track {
  flex-wrap: wrap !important;
  row-gap: 18px !important;
}

.graph-step {
  min-width: 86px !important;
}

.cold-open,
.hero-brain-bg {
  overflow: hidden !important;
}

.cold-open {
  min-height: min(860px, calc(100vh - 90px)) !important;
  padding: clamp(72px, 9vh, 112px) clamp(18px, 5vw, 72px) clamp(58px, 8vh, 96px) !important;
  justify-content: center !important;
  align-items: flex-start !important;
  text-align: left !important;
  background:
    linear-gradient(90deg, rgba(3, 7, 21, 0.94) 0%, rgba(3, 7, 21, 0.78) 38%, rgba(3, 7, 21, 0.20) 78%),
    linear-gradient(180deg, rgba(3, 7, 21, 0.28), rgba(3, 7, 21, 0.76)),
    url("/assets/brain-dim-crop.png") right center / auto 112% no-repeat,
    linear-gradient(120deg, #030715 0%, #061737 100%) !important;
}

.cold-open .hero-brain-bg {
  display: none !important;
}

.cold-open .cold-eyebrow,
.cold-open .cold-question,
.cold-open .cold-frame,
.cold-open .scroll-cue {
  margin-left: 0 !important;
  margin-right: auto !important;
}

.cold-open .cold-question {
  max-width: min(900px, 72vw) !important;
  text-align: left !important;
}

.cold-open .cold-frame {
  max-width: 640px !important;
  margin-left: 0 !important;
  margin-right: 0 !important;
}

.cold-eyebrow {
  margin-bottom: clamp(28px, 4vw, 48px) !important;
}

.cold-question {
  margin: 0 0 clamp(26px, 4vw, 48px) !important;
  max-width: 980px !important;
}

.cold-frame {
  background: rgba(8, 18, 42, 0.50) !important;
  border: 1px solid var(--bd-line) !important;
  border-radius: 8px !important;
  padding: 20px 22px !important;
  box-shadow: 0 18px 52px rgba(0, 0, 0, 0.20) !important;
}

.hero-brain-bg,
.brain-bg,
.cold-open canvas {
  max-width: 100vw !important;
}

.attribution-row,
.meta-lockup,
.citation-badges,
.science-labs-chips,
.hero-pills,
.nav,
.nav-new,
.topbar-right {
  max-width: 100%;
}

th {
  color: var(--bd-cyan) !important;
  font-family: var(--bd-mono) !important;
  letter-spacing: 0.12em;
}

.toast {
  background: rgba(3, 7, 21, 0.94) !important;
  border-color: var(--bd-line-strong) !important;
}

.footer,
footer {
  color: var(--bd-muted) !important;
}

@media (max-width: 980px) {
  .topbar,
  .topbar-new {
    align-items: flex-start !important;
    gap: 14px !important;
  }

  .topbar::after,
  .topbar-new::after {
    display: none;
  }

  .hero-grid,
  .hero,
  main,
  .layout,
  .methodology-layout {
    grid-template-columns: 1fr !important;
  }

  .toc {
    display: none !important;
  }

  .hero-stage {
    min-height: 420px !important;
  }
}

@media (max-width: 640px) {
  body::after {
    opacity: 0.07;
  }

  .topbar,
  .topbar-new {
    padding: 18px 18px 22px !important;
  }

  .brand,
  .brand-new {
    font-size: 19px !important;
  }

  .nav,
  .nav-new,
  .topbar-right {
    gap: 12px !important;
    flex-wrap: wrap !important;
    font-size: 10px !important;
    letter-spacing: 0.08em !important;
  }

  h1,
  .hero-title,
  .page-title,
  .cold-title {
    font-size: clamp(40px, 12vw, 58px) !important;
    line-height: 1.03 !important;
  }

  h2,
  .section-title {
    font-size: clamp(28px, 8vw, 40px) !important;
  }

  .shell,
  main.shell,
  .main-content {
    padding-left: 18px !important;
    padding-right: 18px !important;
  }

  .input-grid,
  .tips,
  .action-row,
  .cta-row,
  .science-stats,
  .citation-badges,
  .case-grid,
  .compare-grid {
    grid-template-columns: 1fr !important;
  }

  .btn,
  .btn-primary,
  .btn-ghost {
    justify-content: center;
  }

  .hero-pill-popover,
  .hero-pill-popover-wrap,
  .meta-lockup,
  .attribution-row,
  .nav,
  .nav-new,
  .topbar-right {
    white-space: normal !important;
  }

  .hero-stage {
    min-height: 360px !important;
  }

  .hero-dim-card {
    max-width: calc(100vw - 64px) !important;
  }

  .hero-brain-bg {
    transform: none !important;
  }

  .cold-open {
    min-height: auto !important;
    padding-top: 54px !important;
    background:
      linear-gradient(180deg, rgba(3, 7, 21, 0.70), rgba(3, 7, 21, 0.94)),
      url("/assets/brain-dim-crop.png") center top / auto 520px no-repeat,
      linear-gradient(120deg, #030715 0%, #061737 100%) !important;
  }

  .cold-open .hero-brain-bg {
    display: none !important;
  }

  .cold-question {
    font-size: clamp(38px, 11vw, 54px) !important;
    max-width: 100% !important;
  }
}