:root {
  --paper: #f4f0e7;
  --paper-deep: #e8e1d3;
  --ink: #151a18;
  --ink-soft: #4e5752;
  --line: rgba(21, 26, 24, 0.18);
  --line-strong: rgba(21, 26, 24, 0.54);
  --accent: #675df6;
  --accent-dark: #5146e5;
  --violet-soft: #f0efff;
  --violet-card: #d8d6f8;
  --violet-line: #8d85db;
  --white: #fffdf8;
  --surface: #fffdf8;
  --surface-translucent: rgba(255, 253, 248, 0.64);
  --surface-soft: rgba(255, 253, 248, 0.7);
  --button-fill: #151a18;
  --button-hover: #5146e5;
  --button-text: #fffdf8;
  --hard-shadow: #151a18;
  --code-surface: #151a18;
  --theme-toggle-sun: #fff;
  --theme-toggle-moon: #000;
  --sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --shell: 76rem;
  --gutter: clamp(1.15rem, 4vw, 3.75rem);
  --radius: 1.25rem;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 4%, rgba(103, 93, 246, 0.1), transparent 25rem),
    linear-gradient(var(--paper), var(--paper));
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

::selection {
  color: var(--white);
  background: var(--accent);
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  color: var(--button-text);
  background: var(--button-fill);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(100%, var(--shell));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.eyebrow,
.kicker,
.mono {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 1.4rem;
  color: var(--accent-dark);
}

.eyebrow::before {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 999px;
  background: var(--accent);
  content: "";
}

.kicker {
  margin: 0 0 0.8rem;
  color: var(--accent-dark);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.045em;
}

h1 {
  max-width: 15ch;
  margin-bottom: 1.5rem;
  font-size: clamp(2.8rem, 5.8vw, 4.8rem);
  line-height: 0.98;
}

h2 {
  max-width: 16ch;
  margin-bottom: 1.15rem;
  font-size: clamp(2.3rem, 5.2vw, 4.7rem);
  line-height: 0.98;
}

h3 {
  margin-bottom: 0.55rem;
  font-size: 1.05rem;
  line-height: 1.3;
}

.lede {
  max-width: 43rem;
  color: var(--ink-soft);
  font-size: clamp(1.08rem, 2vw, 1.32rem);
}

.site-header {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  min-height: 5rem;
  align-items: center;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  margin-right: auto;
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: -0.035em;
  text-decoration: none;
}

.brand-flow {
  color: var(--accent-dark);
}

.brand-mark {
  width: 2.7rem;
  height: 2.7rem;
  margin-right: -0.18rem;
  object-fit: contain;
}

.brand-mark-on-dark {
  display: none;
}

.theme-toggle {
  position: relative;
  display: grid;
  width: 4.5rem;
  height: 2.75rem;
  flex: none;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 0;
  color: var(--ink-soft);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  cursor: pointer;
}

.theme-toggle::after {
  position: absolute;
  top: 0.375rem;
  left: 0.125rem;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0.16rem 0.4rem rgba(0, 0, 0, 0.22);
  content: "";
  transition: transform 160ms ease;
}

.theme-toggle span {
  position: relative;
  z-index: 1;
  display: grid;
  height: 100%;
  place-items: center;
  font-size: 0.8rem;
  line-height: 0;
}

.theme-icon {
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.theme-toggle span:first-child {
  color: var(--theme-toggle-sun);
}

.theme-toggle span:last-child {
  color: var(--theme-toggle-moon);
}

.theme-toggle:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 0.18rem;
}

:root[data-theme="dark"] .brand-mark-on-light {
  display: none;
}

:root[data-theme="dark"] .brand-mark-on-dark {
  display: block;
}

:root[data-theme="dark"] .theme-toggle::after {
  transform: translateX(2.25rem);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 2vw, 1.5rem);
}

.nav-links a {
  color: var(--ink-soft);
  font-size: 0.86rem;
  font-weight: 650;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--ink);
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: 0.78rem 1.15rem;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: transparent;
  font-size: 0.84rem;
  font-weight: 800;
  text-decoration: none;
  transition: transform 140ms ease, box-shadow 140ms ease, background 140ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--button-text);
  background: var(--button-fill);
  box-shadow: 0.28rem 0.28rem 0 var(--accent);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--button-hover);
  box-shadow: 0.38rem 0.38rem 0 var(--hard-shadow);
}

.button-light {
  color: var(--ink);
  background: var(--surface);
}

.hero {
  padding: clamp(4rem, 9vw, 8rem) 0 4rem;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(22rem, 1.08fr);
  gap: clamp(2.5rem, 6vw, 6.5rem);
  align-items: center;
}

.hero-copy .lede {
  max-width: 36rem;
}

.hero-wedge {
  max-width: 38rem;
  margin: 1.5rem 0 0;
  padding-left: 1rem;
  color: var(--ink-soft);
  border-left: 0.3rem solid var(--accent);
  font-size: 0.9rem;
}

.hero-wedge strong {
  display: block;
  margin-bottom: 0.3rem;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.hero-note {
  max-width: 38rem;
  margin: 1.5rem 0 0;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.hero-visual {
  position: relative;
  min-width: 0;
}

.window {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: clamp(0.8rem, 2vw, 1.5rem) clamp(0.8rem, 2vw, 1.5rem) 0 var(--hard-shadow);
}

.window-bar {
  display: flex;
  min-height: 2.5rem;
  align-items: center;
  gap: 0.42rem;
  padding: 0.65rem 0.8rem;
  border-bottom: 1px solid var(--line);
  background: var(--paper-deep);
}

.window-dot {
  width: 0.62rem;
  height: 0.62rem;
  border: 1px solid var(--ink);
  border-radius: 999px;
}

.window-label {
  margin-left: auto;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.62rem;
}

.window img {
  width: 100%;
  height: auto;
}

.float-card {
  position: absolute;
  right: -1.15rem;
  bottom: -1.8rem;
  max-width: 14rem;
  padding: 1rem 1.05rem;
  border: 1px solid var(--ink);
  border-radius: 0.9rem;
  background: var(--violet-card);
  box-shadow: 0.4rem 0.4rem 0 var(--hard-shadow);
  transform: rotate(-2deg);
}

.float-card strong {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.88rem;
}

.float-card span {
  display: block;
  font-size: 0.76rem;
  line-height: 1.45;
}

.signal-strip {
  border-block: 1px solid var(--line-strong);
  background: var(--paper-deep);
}

.signals {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.signal {
  padding: 1.2rem 1rem;
  border-left: 1px solid var(--line);
}

.signal:first-child {
  border-left: 0;
}

.signal strong,
.signal span {
  display: block;
}

.signal strong {
  margin-bottom: 0.18rem;
  font-size: 0.88rem;
}

.signal span {
  color: var(--ink-soft);
  font-size: 0.75rem;
}

.section {
  padding: clamp(5rem, 10vw, 9rem) 0;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(18rem, 0.55fr);
  gap: 2rem;
  align-items: end;
  margin-bottom: clamp(2.4rem, 5vw, 4.5rem);
}

.section-head .lede {
  justify-self: end;
}

.audience-statement {
  display: block;
  margin-top: 1rem;
  color: var(--ink);
  font-weight: 750;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.problem-card {
  position: relative;
  min-height: 15rem;
  padding: 1.5rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface-translucent);
}

.problem-card:nth-child(2) {
  background: var(--violet-soft);
}

.problem-card:nth-child(3) {
  background: var(--violet-card);
}

.card-number {
  display: block;
  margin-bottom: 3.2rem;
  color: var(--accent-dark);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 800;
}

.problem-card h3 {
  font-family: var(--serif);
  font-size: 1.7rem;
  letter-spacing: -0.035em;
}

.problem-card p {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.artifact-terms {
  max-width: 62rem;
  margin: 1.5rem 0 0;
  padding: 1.1rem 1.25rem;
  color: var(--ink-soft);
  border-top: 1px solid var(--line-strong);
  font-size: 0.82rem;
}

.artifact-terms strong {
  color: var(--ink);
}

.category-note {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  margin: 1.5rem 0 0;
  padding: 1.1rem 1.2rem;
  color: var(--ink);
  border: 1px solid var(--violet-line);
  border-left: 0.35rem solid var(--accent);
  border-radius: 0.9rem;
  background: var(--violet-soft);
}

.category-note strong {
  flex: none;
}

.category-note span {
  color: var(--ink-soft);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 19rem), 1fr));
  gap: 1.25rem;
}

.shot {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--surface);
}

.preview-trigger img {
  width: 100%;
  height: auto;
  transition: transform 180ms ease;
}

.shot figcaption {
  padding: 1rem 1.15rem 1.15rem;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.shot figcaption strong {
  color: var(--ink);
}

.preview-trigger {
  position: relative;
  display: block;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--paper-deep);
  cursor: zoom-in;
}

.preview-trigger:hover img,
.preview-trigger:focus-visible img {
  transform: scale(1.015);
}

.preview-trigger:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: -3px;
}

.preview-hint {
  position: absolute;
  right: 0.75rem;
  bottom: 0.75rem;
  padding: 0.42rem 0.65rem;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  background: rgba(21, 26, 24, 0.88);
  font-family: var(--mono);
  font-size: 0.64rem;
  font-weight: 750;
  letter-spacing: 0.04em;
  pointer-events: none;
}

.image-preview {
  width: min(94vw, 92rem);
  max-width: none;
  max-height: 94vh;
  margin: auto;
  padding: 0;
  overflow: hidden;
  color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0.75rem 0.75rem 0 rgba(0, 0, 0, 0.42);
}

.image-preview::backdrop {
  background: rgba(10, 12, 11, 0.82);
  backdrop-filter: blur(5px);
}

.image-preview[open] {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.preview-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--line);
  background: var(--paper-deep);
}

.preview-caption {
  margin: 0 auto 0 0;
  font-size: 0.82rem;
  font-weight: 700;
}

.preview-original,
.preview-close {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 750;
}

.preview-original {
  text-underline-offset: 0.2em;
}

.preview-close {
  width: 2rem;
  height: 2rem;
  padding: 0;
  color: var(--button-text);
  border: 0;
  border-radius: 999px;
  background: var(--button-fill);
  cursor: pointer;
}

.preview-close:hover,
.preview-close:focus-visible {
  background: var(--accent-dark);
}

.preview-image-wrap {
  display: grid;
  min-height: 0;
  place-items: center;
  overflow: auto;
  background: #111412;
}

.preview-image {
  width: 100%;
  height: auto;
  max-height: calc(94vh - 3.7rem);
  object-fit: contain;
}

.safety {
  color: var(--white);
  background: var(--code-surface);
}

.safety .kicker {
  color: #afa9ff;
}

.safety .lede {
  color: rgba(255, 253, 248, 0.72);
}

.safety .split-card {
  color: var(--white);
  border-color: rgba(255, 253, 248, 0.28);
  background: rgba(255, 255, 255, 0.05);
}

.safety .split-card .mono {
  color: #afa9ff;
}

.safety .split-card p:last-child {
  color: rgba(255, 253, 248, 0.72);
}

.origin-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  align-items: stretch;
  margin-top: 3rem;
}

.origin {
  min-height: 18rem;
  padding: clamp(1.4rem, 3vw, 2.2rem);
  border: 1px solid rgba(255, 253, 248, 0.35);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.05);
}

.origin-artifact {
  color: var(--ink);
  border-color: var(--violet-line);
  background: var(--violet-card);
}

.origin-label {
  display: block;
  margin-bottom: 2rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.origin h3 {
  max-width: 15ch;
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  letter-spacing: -0.035em;
}

.origin ul {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.origin li {
  padding: 0.5rem 0;
  border-top: 1px solid currentColor;
  font-size: 0.84rem;
  opacity: 0.82;
}

.origin-arrow {
  display: grid;
  width: 8rem;
  place-items: center;
  text-align: center;
}

.origin-arrow span {
  display: block;
  color: #afa9ff;
  font-family: var(--mono);
  font-size: 0.66rem;
  line-height: 1.45;
}

.origin-arrow b {
  display: block;
  margin: 0.55rem 0;
  color: var(--violet-card);
  font-size: 2rem;
}

.safety-note {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  padding: 1rem 1.15rem;
  border: 1px solid rgba(255, 253, 248, 0.25);
  border-radius: 0.8rem;
  color: rgba(255, 253, 248, 0.72);
  font-size: 0.82rem;
}

.safety-note strong {
  flex: none;
  color: var(--white);
}

.agents {
  background: var(--paper-deep);
}

.agents-grid {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: clamp(2rem, 6vw, 6rem);
  align-items: center;
}

.interface-cards {
  grid-template-columns: 1fr;
  margin-top: 0;
}

.mcp-proof {
  margin-top: 1rem;
  box-shadow: 0.55rem 0.55rem 0 var(--accent);
}

.mcp-proof pre,
.mcp-compact-flow {
  font-size: clamp(0.62rem, 1.1vw, 0.74rem);
  line-height: 1.65;
}

.mcp-animation-controls {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-top: 1.25rem;
}

.mcp-animation-controls [data-mcp-status] {
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.mcp-compact-flow {
  display: grid;
  padding: 0.7rem 1.1rem 1rem;
  color: var(--white);
  font-family: var(--mono);
}

.mcp-compact-step {
  display: grid;
  grid-template-columns: 2.1rem 4.2rem minmax(0, 1fr);
  gap: 0.15rem 0.65rem;
  align-items: baseline;
  padding: 0.8rem 0.2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.13);
}

.mcp-compact-step:last-child {
  border-bottom: 0;
}

.mcp-compact-step strong {
  color: #afa9ff;
}

.mcp-compact-step code {
  min-width: 0;
  overflow: hidden;
  color: #fffdf8;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mcp-compact-step > span:last-child {
  grid-column: 3;
  color: #9ea8a2;
}

.mcp-step-number {
  color: #89948e;
  font-weight: 800;
}

.mcp-animation.is-playing[data-mcp-layout="compact"] .mcp-compact-step {
  animation: mcp-compact-cycle 1.8s ease both;
}

.mcp-animation.is-playing[data-mcp-layout="compact"] .mcp-compact-step:nth-child(2) {
  animation-delay: 1.8s;
}

.mcp-animation.is-playing[data-mcp-layout="compact"] .mcp-compact-step:nth-child(3) {
  animation-delay: 3.6s;
}

.mcp-flow {
  display: flex;
  gap: 0.55rem;
  align-items: center;
  padding: 1rem 1.25rem 0;
  overflow-x: auto;
  color: #89948e;
  font-family: var(--mono);
  font-size: 0.64rem;
  white-space: nowrap;
}

.mcp-flow span {
  display: inline-flex;
  gap: 0.38rem;
  align-items: center;
  padding: 0.35rem 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
}

.mcp-flow span:first-of-type {
  color: var(--white);
  border-color: var(--accent);
  background: rgba(103, 93, 246, 0.3);
}

.mcp-flow i {
  width: 1.2rem;
  height: 1px;
  flex: 0 0 1.2rem;
  background: rgba(255, 255, 255, 0.2);
}

.mcp-session-stage {
  display: grid;
}

.mcp-session-step {
  min-width: 0;
  grid-area: 1 / 1;
  opacity: 0;
}

.mcp-session-step:first-child {
  opacity: 1;
}

.mcp-animation.is-playing[data-mcp-layout="session"] .mcp-session-step {
  animation: mcp-session-cycle 4s ease both;
}

.mcp-animation.is-playing[data-mcp-layout="session"] .mcp-session-step:nth-child(2) {
  animation-delay: 4s;
}

.mcp-animation.is-playing[data-mcp-layout="session"] .mcp-session-step:nth-child(3) {
  animation-delay: 8s;
}

.mcp-animation.is-playing[data-mcp-layout="session"] .mcp-session-step:nth-child(4) {
  animation-delay: 12s;
}

.mcp-animation.is-playing[data-mcp-layout="session"] .mcp-flow span {
  color: #89948e;
  border-color: rgba(255, 255, 255, 0.16);
  background: transparent;
  animation: mcp-indicator-cycle 4s ease both;
}

.mcp-animation.is-playing[data-mcp-layout="session"] .mcp-flow span:nth-of-type(2) {
  animation-delay: 4s;
}

.mcp-animation.is-playing[data-mcp-layout="session"] .mcp-flow span:nth-of-type(3) {
  animation-delay: 8s;
}

.mcp-animation.is-playing[data-mcp-layout="session"] .mcp-flow span:nth-of-type(4) {
  animation-delay: 12s;
}

.mcp-proof:hover [data-mcp-step],
.mcp-proof:hover [data-mcp-indicator] {
  animation-play-state: paused;
}

.mcp-animation.is-expanded .mcp-session-stage {
  display: block;
}

.mcp-animation.is-expanded .mcp-session-step {
  margin-top: 1rem;
  opacity: 1;
}

@keyframes mcp-compact-cycle {
  0%,
  100% {
    color: var(--white);
    background: transparent;
    opacity: 0.45;
    transform: translateX(0);
  }

  12%,
  82% {
    color: var(--white);
    background: rgba(103, 93, 246, 0.18);
    opacity: 1;
    transform: translateX(0.35rem);
  }
}

@keyframes mcp-session-cycle {
  0%,
  100% {
    opacity: 0;
    transform: translateY(0.5rem);
  }

  10%,
  88% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes mcp-indicator-cycle {
  0%,
  100% {
    color: #89948e;
    border-color: rgba(255, 255, 255, 0.16);
    background: transparent;
  }

  10%,
  88% {
    color: var(--white);
    border-color: var(--accent);
    background: rgba(103, 93, 246, 0.3);
  }
}

.transcript-note {
  margin: 1rem 0 0;
  color: var(--ink-soft);
  font-size: 0.76rem;
}

.agent-points {
  display: grid;
  gap: 0.7rem;
  margin: 2rem 0 0;
}

.agent-point {
  display: flex;
  gap: 0.75rem;
  align-items: baseline;
  padding-top: 0.7rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.agent-point::before {
  color: var(--accent);
  content: "✓";
  font-weight: 900;
}

.code-card {
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--code-surface);
  box-shadow: 0.75rem 0.75rem 0 var(--accent);
}

.code-card header {
  display: flex;
  justify-content: space-between;
  padding: 0.8rem 1rem;
  color: rgba(255, 253, 248, 0.62);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  font-family: var(--mono);
  font-size: 0.64rem;
}

.code-card pre {
  margin: 0;
  padding: 1.3rem;
  overflow-x: auto;
  color: var(--white);
  font-family: var(--mono);
  font-size: clamp(0.68rem, 1.3vw, 0.8rem);
  line-height: 1.8;
}

.code-card .dim {
  color: #89948e;
}

.code-card .key {
  color: #afa9ff;
}

.code-card .value {
  color: #d8d6f8;
}

.deploy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.25rem, 4vw, 3rem);
  align-items: start;
}

.terminal {
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0.75rem 0.75rem 0 var(--violet-card);
}

.terminal header {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--line);
  background: var(--paper-deep);
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 800;
}

.terminal pre {
  margin: 0;
  padding: 1.25rem;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.85;
}

.terminal .prompt {
  color: var(--accent-dark);
}

.production-card {
  padding: clamp(1.5rem, 4vw, 2.3rem);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--violet-card);
}

.production-card h3 {
  max-width: 18ch;
  font-family: var(--serif);
  font-size: 2rem;
  letter-spacing: -0.035em;
}

.production-card p {
  color: var(--ink-soft);
}

.role-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 1.2rem 0 1.6rem;
}

.role {
  padding: 0.35rem 0.62rem;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--surface-soft);
  font-family: var(--mono);
  font-size: 0.64rem;
  font-weight: 800;
}

.alpha {
  padding-top: 0;
}

.alpha-box {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(2rem, 5vw, 5rem);
  padding: clamp(1.6rem, 4vw, 3rem);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--surface);
}

.alpha-box h2 {
  font-size: clamp(2.2rem, 4vw, 3.6rem);
}

.alpha-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.alpha-list li {
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.alpha-list li:first-child {
  border-top: 0;
}

.closing {
  position: relative;
  overflow: hidden;
  padding-block: clamp(4rem, 7vw, 6rem);
  color: var(--white);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: #1b1e29;
}

.closing::before {
  position: absolute;
  inset: -65% -12%;
  background: radial-gradient(circle at 76% 50%, rgba(103, 93, 246, 0.32), transparent 32rem);
  content: "";
  pointer-events: none;
}

.closing .shell {
  position: relative;
  z-index: 1;
}

.closing .kicker {
  color: #afa9ff;
}

.closing-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: center;
}

.closing h2 {
  max-width: 14ch;
  margin-bottom: 0.8rem;
}

.closing-copy {
  max-width: 40rem;
  margin: 0;
  color: rgba(255, 253, 248, 0.7);
}

.closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: flex-end;
}

.closing .button-primary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.28);
  background: linear-gradient(135deg, #857cff, #5a4fe9);
  box-shadow: 0 12px 30px rgba(92, 78, 233, 0.32);
}

.closing .button-primary:hover,
.closing .button-primary:focus-visible {
  background: var(--accent-dark);
  box-shadow: 0 16px 38px rgba(92, 78, 233, 0.42);
}

.site-footer {
  color: rgba(255, 253, 248, 0.72);
  background: var(--code-surface);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 0.7fr);
  gap: 2rem;
  padding-block: 3rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 800;
}

.footer-brand-mark {
  width: 2rem;
  height: 2rem;
}

.footer-brand .brand-flow {
  color: #9f98ff;
}

.footer-summary {
  max-width: 24rem;
  font-size: 0.82rem;
}

.footer-column strong {
  display: block;
  margin-bottom: 0.65rem;
  color: var(--white);
  font-size: 0.78rem;
}

.footer-column a,
.footer-column span {
  display: block;
  margin-top: 0.35rem;
  color: inherit;
  font-size: 0.78rem;
  text-decoration: none;
}

.footer-column a:hover,
.footer-column a:focus-visible {
  color: var(--white);
}

.footer-end {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 0 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  font-family: var(--mono);
  font-size: 0.62rem;
}

@media (max-width: 62rem) {
  .hero-grid,
  .agents-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 47rem;
  }

  .hero-visual {
    max-width: 52rem;
  }

  .section-head,
  .alpha-box {
    grid-template-columns: 1fr;
  }

  .section-head .lede {
    justify-self: start;
  }

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

  .origin-flow {
    grid-template-columns: 1fr;
  }

  .origin-arrow {
    width: auto;
    min-height: 5rem;
  }

  .origin-arrow b {
    transform: rotate(90deg);
  }

  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr;
  }
}

@media (min-width: 44.01rem) and (max-width: 52rem) {
  .nav-links {
    gap: 0.65rem;
  }

  .nav-links .button {
    display: none;
  }
}

@media (max-width: 44rem) {
  .mcp-animation-controls {
    align-items: flex-start;
    flex-direction: column;
  }

  .mcp-compact-step {
    grid-template-columns: 1.8rem 3.8rem minmax(0, 1fr);
    column-gap: 0.45rem;
  }

  .mcp-flow {
    padding-inline: 1rem;
  }

  .nav-links a:not(.button) {
    display: none;
  }

  .nav {
    gap: 0.75rem;
    min-height: 4.4rem;
  }

  .nav-links {
    gap: 0.5rem;
  }

  .brand {
    font-size: 1rem;
  }

  .brand-mark {
    width: 2.35rem;
    height: 2.35rem;
  }

  .nav .button {
    min-height: 2.75rem;
    padding-inline: 0.9rem;
  }

  .hero {
    padding-top: 3.5rem;
  }

  h1 {
    font-size: clamp(2.55rem, 11vw, 3.6rem);
  }

  .float-card {
    right: -0.35rem;
    bottom: -2.4rem;
  }

  .signals,
  .problem-grid,
  .gallery-grid,
  .deploy-grid,
  .closing-grid {
    grid-template-columns: 1fr;
  }

  .signal {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .signal:first-child {
    border-top: 0;
  }

  .problem-card {
    min-height: auto;
  }

  .card-number {
    margin-bottom: 1.6rem;
  }

  .closing .button {
    width: 100%;
  }

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

  .footer-grid > :first-child {
    grid-column: 1 / -1;
  }

  .footer-end {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .button {
    transition: none;
  }

  .theme-toggle::after {
    transition: none;
  }

  .preview-trigger img {
    transition: none;
  }

  .mcp-animation.is-playing [data-mcp-step] {
    animation: none;
  }

  .mcp-animation.is-playing [data-mcp-indicator] {
    animation: none;
  }
}

/* Shared detail-page layout */
.nav-links a[aria-current="page"] {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 0.16rem;
  text-underline-offset: 0.35rem;
}

.detail-hero {
  padding: clamp(4rem, 8vw, 7rem) 0 clamp(3.5rem, 7vw, 6rem);
  border-bottom: 1px solid var(--line-strong);
}

.detail-hero h1 {
  max-width: 18ch;
}

.detail-hero .lede {
  max-width: 48rem;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.article-shell {
  width: min(100%, 68rem);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.article-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(13rem, 0.3fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: start;
}

.article-content {
  min-width: 0;
}

.article-content section {
  padding-block: 2.6rem;
  border-top: 1px solid var(--line);
}

.article-content section:first-child {
  padding-top: 0;
  border-top: 0;
}

.article-content h2 {
  max-width: 20ch;
  font-size: clamp(2rem, 4vw, 3.3rem);
}

.article-content h3 {
  margin-top: 1.8rem;
  font-size: 1.15rem;
}

.article-content p,
.article-content li {
  color: var(--ink-soft);
}

.article-content a:not(.button),
.detail-aside a {
  color: var(--accent-dark);
  font-weight: 700;
  text-underline-offset: 0.18em;
}

.article-content code {
  padding: 0.1rem 0.3rem;
  border-radius: 0.28rem;
  background: var(--paper-deep);
  font-family: var(--mono);
  font-size: 0.88em;
}

.article-content pre {
  padding: 1.25rem;
  overflow-x: auto;
  color: var(--white);
  border-radius: 0.9rem;
  background: var(--code-surface);
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.75;
}

.article-content pre code {
  padding: 0;
  color: inherit;
  background: transparent;
  font-size: inherit;
}

.detail-aside {
  position: sticky;
  top: 1.5rem;
  padding: 1.2rem;
  border: 1px solid var(--line-strong);
  border-radius: 1rem;
  background: var(--surface);
}

.detail-aside strong {
  display: block;
  margin-bottom: 0.7rem;
}

.detail-aside a {
  display: block;
  margin-top: 0.55rem;
  font-size: 0.82rem;
}

.callout {
  margin-block: 1.8rem;
  padding: 1.2rem 1.3rem;
  border: 1px solid var(--violet-line);
  border-radius: 0.9rem;
  background: var(--violet-soft);
}

.callout strong {
  display: block;
  margin-bottom: 0.3rem;
}

.callout p:last-child {
  margin-bottom: 0;
}

.detail-list {
  display: grid;
  gap: 0.8rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.detail-list li {
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: var(--surface-soft);
}

.detail-list strong {
  display: block;
  color: var(--ink);
}

.split-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.split-card {
  padding: 1.2rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.9rem;
  background: var(--surface);
}

.split-card h3 {
  margin-top: 0;
}

.split-card p:last-child {
  margin-bottom: 0;
}

.roadmap-issue-link {
  display: inline-block;
  margin-top: 1rem;
  font-family: var(--mono);
  font-size: 0.72rem;
}

.flow-steps {
  margin: 1.4rem 0 0;
  padding-left: 1.35rem;
}

.flow-steps li {
  padding: 0.35rem 0 0.8rem 0.35rem;
}

.page-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.page-link {
  display: block;
  padding: 1.3rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.9rem;
  background: var(--surface);
  text-decoration: none;
}

.page-link:hover,
.page-link:focus-visible {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.page-link strong,
.page-link span {
  display: block;
}

.page-link span {
  margin-top: 0.35rem;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.site-footer .footer-column a[aria-current="page"] {
  color: var(--white);
  text-decoration: underline;
  text-underline-offset: 0.2rem;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #0d0f13;
  --paper-deep: #171a22;
  --ink: #f5f4ff;
  --ink-soft: #afb3c1;
  --line: rgba(245, 244, 255, 0.14);
  --line-strong: rgba(245, 244, 255, 0.34);
  --accent: #8f84ff;
  --accent-dark: #aaa2ff;
  --violet-soft: #19172d;
  --violet-card: #29264d;
  --violet-line: #766ed0;
  --surface: #151820;
  --surface-translucent: rgba(21, 24, 32, 0.82);
  --surface-soft: rgba(27, 30, 40, 0.9);
  --button-fill: #675df6;
  --button-hover: #5146e5;
  --hard-shadow: #050609;
  --theme-toggle-moon: #fff;
}

:root[data-theme="dark"] body {
  background:
    radial-gradient(circle at 8% 4%, rgba(103, 93, 246, 0.2), transparent 25rem),
    linear-gradient(var(--paper), var(--paper));
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper: #0d0f13;
    --paper-deep: #171a22;
    --ink: #f5f4ff;
    --ink-soft: #afb3c1;
    --line: rgba(245, 244, 255, 0.14);
    --line-strong: rgba(245, 244, 255, 0.34);
    --accent: #8f84ff;
    --accent-dark: #aaa2ff;
    --violet-soft: #19172d;
    --violet-card: #29264d;
    --violet-line: #766ed0;
    --surface: #151820;
    --surface-translucent: rgba(21, 24, 32, 0.82);
    --surface-soft: rgba(27, 30, 40, 0.9);
    --button-fill: #675df6;
    --button-hover: #5146e5;
    --hard-shadow: #050609;
    --theme-toggle-moon: #fff;
  }

  :root:not([data-theme="light"]) body {
    background:
      radial-gradient(circle at 8% 4%, rgba(103, 93, 246, 0.2), transparent 25rem),
      linear-gradient(var(--paper), var(--paper));
  }

  :root:not([data-theme="light"]) .brand-mark-on-light {
    display: none;
  }

  :root:not([data-theme="light"]) .brand-mark-on-dark {
    display: block;
  }

  :root:not([data-theme="light"]) .theme-toggle::after {
    transform: translateX(2.25rem);
  }
}

@media (max-width: 62rem) {
  .article-grid {
    grid-template-columns: 1fr;
  }

  .detail-aside {
    position: static;
    order: -1;
  }
}

@media (max-width: 44rem) {
  .category-note {
    display: grid;
  }

  .split-cards,
  .page-links {
    grid-template-columns: 1fr;
  }
}