/*!
 * Oh My Hermes - landing page.
 * Dark by default, light by system preference or the header toggle. The
 * ground is a solid violet-black, the colour the OMH TUI is recorded on, so
 * the DAG-ULW capture sits in the page instead of on it. One soft radial glow
 * at the top of the page is the only background effect. The spectrum (violet,
 * pink, orange, lime) comes from the wordmark and carries structure only:
 * the order of the feature list and the stage of an evidence label.
 */

:root {
  color-scheme: dark;
  --bg: #0c0a12;
  --bg-raise: #15121d;
  --bg-sunk: #08070c;
  --ink: #f2eef8;
  --muted: #aaa2ba;
  --line: rgba(242, 238, 248, 0.1);
  --line-strong: rgba(242, 238, 248, 0.2);
  --glow: rgba(208, 140, 242, 0.12);
  --link: #f59ccb;
  --focus: #f59ccb;
  --code-bg: rgba(208, 140, 242, 0.13);
  --code-ink: #ecd0ff;
  --sp-1: #d08cf2;
  --sp-2: #e486d6;
  --sp-3: #f27bb6;
  --sp-4: #f3918a;
  --sp-5: #f4a462;
  --sp-6: #c9dc6b;
  --spectrum: linear-gradient(90deg, #d08cf2, #f27bb6 36%, #f4a462 68%, #c9dc6b);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.55);
  --font-sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI Variable", "Segoe UI",
    "Helvetica Neue", "Pretendard", "Apple SD Gothic Neo", "Hiragino Sans", "Noto Sans KR",
    "Noto Sans JP", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", Menlo, Consolas, monospace;
  --page: 1120px;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 14px;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f6f4fa;
  --bg-raise: #ffffff;
  --bg-sunk: #ebe7f2;
  --ink: #17131f;
  --muted: #564f66;
  --line: rgba(23, 19, 31, 0.11);
  --line-strong: rgba(23, 19, 31, 0.22);
  --glow: rgba(208, 140, 242, 0.16);
  --link: #a12f72;
  --focus: #a12f72;
  --code-bg: rgba(139, 63, 194, 0.1);
  --code-ink: #5f2590;
  --sp-1: #8d44c4;
  --sp-2: #a7409f;
  --sp-3: #b8357a;
  --sp-4: #b2493e;
  --sp-5: #a95a14;
  --sp-6: #5f7410;
  --shadow: 0 24px 60px rgba(40, 20, 70, 0.16);
  --aura-strength: 0.62;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #f6f4fa;
    --bg-raise: #ffffff;
    --bg-sunk: #ebe7f2;
    --ink: #17131f;
    --muted: #564f66;
    --line: rgba(23, 19, 31, 0.11);
    --line-strong: rgba(23, 19, 31, 0.22);
    --glow: rgba(208, 140, 242, 0.16);
    --link: #a12f72;
    --focus: #a12f72;
    --code-bg: rgba(139, 63, 194, 0.1);
    --code-ink: #5f2590;
    --sp-1: #8d44c4;
    --sp-2: #a7409f;
    --sp-3: #b8357a;
    --sp-4: #b2493e;
    --sp-5: #a95a14;
    --sp-6: #5f7410;
    --shadow: 0 24px 60px rgba(40, 20, 70, 0.16);
    --aura-strength: 0.62;
  }
}

/* ------------------------------------------------------------------ base */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 76px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg);
  background-image: radial-gradient(70% 640px at 50% 0%, var(--glow), transparent 70%);
  background-repeat: no-repeat;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Korean breaks between words, not inside them. */
:root:lang(ko) body {
  word-break: keep-all;
  overflow-wrap: break-word;
}

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

img,
video {
  height: auto;
}

h1,
h2,
h3,
p,
figure,
dl,
dd,
ol,
ul {
  margin: 0;
}

ol,
ul {
  padding: 0;
  list-style: none;
}

a {
  color: var(--link);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

a:hover {
  text-decoration-thickness: 2px;
}

button {
  font: inherit;
  color: inherit;
}

code,
pre {
  font-family: var(--font-mono);
}

:where(p, dd, h3, summary) code {
  padding: 0.08em 0.36em;
  border-radius: 6px;
  background: var(--code-bg);
  color: var(--code-ink);
  font-size: 0.88em;
  white-space: nowrap;
}

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

main:focus {
  outline: none;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 50;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--bg);
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  top: 12px;
}

/* ---------------------------------------------------------------- topbar */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 60px;
  padding: 10px var(--gutter);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 84%, transparent);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  backdrop-filter: saturate(140%) blur(14px);
}

.topbar__left {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
  white-space: nowrap;
}

.brand img {
  width: 28px;
  height: 28px;
  border-radius: 7px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav__link {
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
}

.nav__link:hover {
  color: var(--ink);
  background: var(--code-bg);
}

.nav__icon {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.nav__icon:hover {
  color: var(--ink);
  background: var(--code-bg);
}

.nav__icon svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* GitHub star and npm install count. Both fill in from app.js; until then
   (or when a request fails) the star shows without a number and the
   install count stays hidden. */
.gh-star {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 36px;
  margin-left: 4px;
  padding: 0 10px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.gh-star:hover {
  border-color: var(--link);
  background: var(--code-bg);
}

.gh-star svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.gh-star__count {
  margin-right: -2px;
  padding-left: 9px;
  border-left: 1px solid var(--line-strong);
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.installs {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 36px;
  padding: 0 8px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}

.installs[hidden] {
  display: none;
}

.installs:hover {
  color: var(--ink);
  background: var(--code-bg);
}

.installs svg {
  width: 16px;
  height: 16px;
}

.installs__count {
  color: var(--ink);
  font-weight: 650;
  font-variant-numeric: tabular-nums;
}

.langswitch {
  position: relative;
}

.langswitch__button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 10px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.langswitch__button:hover {
  color: var(--ink);
}

.langswitch__globe {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.langswitch__menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 168px;
  padding: 6px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--bg-raise);
  box-shadow: var(--shadow);
}

.langswitch__menu button {
  display: flex;
  justify-content: space-between;
  width: 100%;
  padding: 8px 10px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  font-size: 15px;
  text-align: left;
  cursor: pointer;
}

.langswitch__menu button span {
  color: var(--muted);
  font-size: 12px;
}

.langswitch__menu button:hover,
.langswitch__menu [aria-selected="true"] button {
  background: var(--code-bg);
}

/* -------------------------------------------------------------- sections */

.section {
  width: min(var(--page), 100% - 2 * var(--gutter));
  margin-inline: auto;
  padding-block: clamp(64px, 9vw, 112px);
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section__title {
  max-width: 22ch;
  font-size: clamp(30px, 4.2vw, 46px);
  font-weight: 750;
  line-height: 1.12;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.section__lead {
  max-width: 62ch;
  margin-top: 16px;
  color: var(--muted);
  font-size: 18px;
}

/* ------------------------------------------------------------------ hero */

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: clamp(48px, 8vw, 96px) var(--gutter) clamp(56px, 8vw, 96px);
  text-align: center;
}

.hero__logo {
  width: 88px;
  height: 88px;
  border-radius: 22px;
  box-shadow: 0 18px 50px rgba(208, 140, 242, 0.25);
}

.hero__title {
  width: min(940px, 100%);
  margin-top: 36px;
  line-height: 0;
}

.hero__title img {
  width: 100%;
}

.hero__badge {
  position: relative;
  isolation: isolate;
  margin-top: 28px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}

/* The pill sits on top of the beam's splash, so its text keeps the page contrast. */
.hero__badge > [data-i18n] {
  position: relative;
  display: inline-block;
  padding: 4px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--bg);
}

.hero__tagline {
  max-width: 24ch;
  margin-top: 22px;
  font-size: clamp(26px, 3.6vw, 40px);
  font-weight: 750;
  line-height: 1.18;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.hero__tagline code {
  padding: 0 0.1em;
  border-radius: 0;
  background: none;
  color: inherit;
  font-size: 0.92em;
  box-shadow: inset 0 -0.14em 0 0 var(--sp-3);
}

.hero__lead {
  max-width: 58ch;
  margin-top: 20px;
  color: var(--muted);
  font-size: 18px;
  text-wrap: pretty;
}

.terminal--hero {
  width: min(820px, 100%);
  margin-top: 36px;
  text-align: left;
}

.hero__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 28px;
  margin-top: 20px;
  font-size: 16px;
  font-weight: 500;
}

.facts {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 40px;
  width: min(720px, 100%);
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  color: var(--muted);
  font-size: 15px;
}

.facts strong {
  color: var(--ink);
  font-size: 22px;
  font-weight: 750;
  letter-spacing: -0.02em;
}

/* ------------------------------------------------------------------ aura */

/* Soft spectrum light behind the hero and the DAG-ULW band: three drifting
   ribbons, a beam that lands on the version badge and splashes along it
   while its hue walks the spectrum, and a glow that follows the pointer.
   Everything animates transform or opacity only; app.js pauses a band that
   is off screen, and reduced motion keeps the first frame. */
.aura {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  opacity: calc(var(--aura-strength, 1) * var(--aura-fade, 1));
}

.aura__ribbon {
  position: absolute;
  left: -30%;
  width: 160%;
  height: 300px;
  border-radius: 50%;
  will-change: transform, opacity;
}

.aura__ribbon--a {
  top: 14%;
  background: radial-gradient(closest-side, rgba(208, 140, 242, 0.34), rgba(242, 123, 182, 0.12) 55%, transparent);
  transform: translate3d(-5%, 0, 0) rotate(-13deg);
  animation: aura-ribbon-a 26s ease-in-out infinite alternate;
}

.aura__ribbon--b {
  top: 42%;
  background: radial-gradient(closest-side, rgba(242, 123, 182, 0.2), rgba(244, 164, 98, 0.09) 55%, transparent);
  transform: translate3d(4%, 0, 0) rotate(9deg);
  animation: aura-ribbon-b 32s ease-in-out infinite alternate;
}

.aura__ribbon--c {
  top: 66%;
  background: radial-gradient(closest-side, rgba(201, 220, 107, 0.16), rgba(208, 140, 242, 0.08) 55%, transparent);
  transform: translate3d(0, 0, 0) rotate(-5deg);
  animation: aura-ribbon-c 38s ease-in-out infinite alternate;
}

@keyframes aura-ribbon-a {
  from { transform: translate3d(-5%, 0, 0) rotate(-13deg); opacity: 0.75; }
  to { transform: translate3d(6%, 36px, 0) rotate(-8deg); opacity: 1; }
}

@keyframes aura-ribbon-b {
  from { transform: translate3d(4%, 0, 0) rotate(9deg); opacity: 0.9; }
  to { transform: translate3d(-7%, -28px, 0) rotate(5deg); opacity: 0.6; }
}

@keyframes aura-ribbon-c {
  from { transform: translate3d(0, 0, 0) rotate(-5deg); opacity: 0.6; }
  to { transform: translate3d(8%, 20px, 0) rotate(-1deg); opacity: 1; }
}

/* The beam: four stacked layers, one per spectrum stop, crossfading in turn. */
.aura__beam {
  position: absolute;
  top: 0;
  left: 50%;
  width: 260px;
  height: var(--beam-h, 46%);
  transform: translateX(-50%);
}

.aura__beam i,
.hero__splash i {
  position: absolute;
  inset: 0;
  opacity: 0;
  animation: aura-hue 16s linear infinite;
}

.aura__beam i:nth-child(1),
.hero__splash i:nth-child(1) { --hue: 208, 140, 242; opacity: 1; animation-delay: 0s; }
.aura__beam i:nth-child(2),
.hero__splash i:nth-child(2) { --hue: 242, 123, 182; animation-delay: -12s; }
.aura__beam i:nth-child(3),
.hero__splash i:nth-child(3) { --hue: 244, 164, 98; animation-delay: -8s; }
.aura__beam i:nth-child(4),
.hero__splash i:nth-child(4) { --hue: 201, 220, 107; animation-delay: -4s; }

.aura__beam i {
  background:
    linear-gradient(to bottom, transparent, rgba(var(--hue), 0.9) 92%, rgba(255, 255, 255, 0.9)) 50% 0 / 2px 100% no-repeat,
    radial-gradient(48% 100% at 50% 100%, rgba(var(--hue), 0.42), rgba(var(--hue), 0.1) 55%, transparent 80%);
}

@keyframes aura-hue {
  0% { opacity: 1; }
  20% { opacity: 1; }
  28% { opacity: 0; }
  92% { opacity: 0; }
  100% { opacity: 1; }
}

.hero__splash {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: -1;
  width: 560px;
  height: 64px;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.hero__splash i {
  background:
    linear-gradient(90deg, transparent, rgba(var(--hue), 0.75) 50%, transparent) 50% 0 / 100% 1px no-repeat,
    radial-gradient(closest-side, rgba(var(--hue), 0.36), transparent);
}

.aura__spot {
  position: absolute;
  top: 0;
  left: 0;
  width: 560px;
  height: 560px;
  margin: -280px 0 0 -280px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(242, 123, 182, 0.16), rgba(208, 140, 242, 0.07) 50%, transparent);
  opacity: 0;
  transition: opacity 0.5s ease;
  will-change: transform, opacity;
}

.aura__spot.is-on {
  opacity: 1;
}

/* The DAG-ULW band: two ribbons and a pool of light behind the graph that
   breathes on the same 6 s beat as the graph's own node auras. */
.aura--stage .aura__ribbon--a { top: 24%; }
.aura--stage .aura__ribbon--c { top: 70%; }

.aura__pool {
  position: absolute;
  top: 58%;
  right: 4%;
  width: 720px;
  height: 720px;
  margin-top: -360px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(208, 140, 242, 0.2), rgba(242, 123, 182, 0.08) 50%, transparent);
  animation: aura-breathe 6s ease-in-out infinite alternate;
  will-change: opacity;
}

@keyframes aura-breathe {
  from { opacity: 0.55; }
  to { opacity: 1; }
}

.dag-node .dag-aura {
  animation: dag-aura-breathe 6s ease-in-out infinite alternate;
}

.dag-node[data-layer="2"] .dag-aura { animation-delay: -1.5s; }
.dag-node[data-layer="3"] .dag-aura { animation-delay: -3s; }
.dag-node[data-layer="4"] .dag-aura { animation-delay: -4.5s; }

.dag-node[data-state="waiting"] .dag-aura,
.dag-node.is-active .dag-aura {
  animation: none;
}

@keyframes dag-aura-breathe {
  from { opacity: 0.14; }
  to { opacity: 0.32; }
}

/* A band scrolled out of view stops animating. */
[data-aura-paused] .aura *,
[data-aura-paused] .hero__splash i,
[data-aura-paused] .dag-edge,
[data-aura-paused] .dag-aura {
  animation-play-state: paused;
}

/* -------------------------------------------------------------- terminal */

.terminal {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--bg-sunk);
}

.terminal__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 8px 8px 16px;
  border-bottom: 1px solid var(--line);
}

.terminal__title {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

.terminal__body {
  margin: 0;
  padding: 16px;
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.7;
  white-space: pre;
}

.terminal__body code {
  color: var(--ink);
}

.terminal__body--wrap {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.copy-btn {
  min-width: 64px;
  min-height: 32px;
  padding: 4px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: transparent;
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.copy-btn:hover {
  background: var(--code-bg);
}

.copy-btn[data-copied] {
  border-color: var(--sp-6);
  color: var(--sp-6);
}

/* -------------------------------------------------------------- features */

.features {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 56px;
  margin-top: 48px;
}

.feature {
  padding-block: 28px 32px;
  border-top: 3px solid var(--feature-color, var(--sp-1));
}

.feature:nth-child(2) { --feature-color: var(--sp-2); }
.feature:nth-child(3) { --feature-color: var(--sp-3); }
.feature:nth-child(4) { --feature-color: var(--sp-4); }
.feature:nth-child(5) { --feature-color: var(--sp-5); }
.feature:nth-child(6) { --feature-color: var(--sp-6); }

.feature h3 {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.015em;
}

.feature p {
  max-width: 60ch;
  margin-top: 10px;
  color: var(--muted);
}

.feature p.feature__more {
  margin-top: 14px;
  font-weight: 500;
}

.stages {
  display: grid;
  gap: 8px;
  margin-top: 18px;
}

.stages div {
  display: grid;
  grid-template-columns: 13.5em minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
}

.stages dt code {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid currentColor;
  border-radius: 6px;
  font-size: 13px;
  white-space: nowrap;
}

.stages div:nth-child(1) dt { color: var(--muted); }
.stages div:nth-child(2) dt { color: var(--sp-5); }
.stages div:nth-child(3) dt { color: var(--sp-3); }
.stages div:nth-child(4) dt { color: var(--sp-6); }

.stages dd {
  color: var(--muted);
  font-size: 15px;
}

/* --------------------------------------------------------- DAG-ULW stage */

/* The capture is a dark terminal, so this band stays dark in both themes. */
.section--stage {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  --ink: #f2eef8;
  --muted: #aaa2ba;
  --line: rgba(242, 238, 248, 0.1);
  --line-strong: rgba(242, 238, 248, 0.2);
  --link: #f59ccb;
  --focus: #f59ccb;
  --sp-1: #d08cf2;
  --sp-3: #f27bb6;
  --sp-5: #f4a462;
  --sp-6: #c9dc6b;
  width: 100%;
  padding-inline: var(--gutter);
  background-color: #0c0a12;
  background-image: radial-gradient(60% 50% at 50% 0%, rgba(208, 140, 242, 0.16), transparent 70%);
  color: var(--ink);
}

.section.section--stage,
.section--stage + .section {
  border-top: 0;
}

.stage__head {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: min(var(--page), 100%);
  margin-inline: auto;
  text-align: center;
}

.stage__head .section__title {
  max-width: 20ch;
  font-size: clamp(32px, 5vw, 56px);
}

.stage__head .section__title code {
  padding: 0 0.1em;
  background-image: var(--spectrum);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: 0.94em;
}

.stage__pair {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(300px, 1fr);
  gap: 40px;
  align-items: center;
  width: min(1240px, 100%);
  margin: 48px auto 0;
}

.stage__media {
  margin: 0;
}

.window {
  position: relative;
}

.window video {
  width: 100%;
  aspect-ratio: 4 / 3;
}

.window__toggle {
  position: absolute;
  right: 12px;
  bottom: 12px;
  min-height: 32px;
  padding: 4px 14px;
  border: 1px solid rgba(242, 238, 248, 0.32);
  border-radius: 999px;
  background: rgba(12, 10, 18, 0.82);
  color: #f2eef8;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.stage__media figcaption {
  margin-top: 16px;
  color: var(--muted);
  font-size: 15px;
  text-align: center;
}

/* ------------------------------------------------- DAG graph (illustration) */

.dag-graph {
  margin: 0;
}

.dag-svg {
  width: 100%;
  max-width: 470px;
  height: auto;
  margin-inline: auto;
  overflow: visible;
  font-family: var(--font-sans);
}

.dag-node {
  cursor: default;
  outline: none;
  transition: opacity 0.25s ease;
}

.dag-aura {
  fill: url(#dag-spectrum);
  filter: url(#dag-blur);
  opacity: 0.2;
  transition: opacity 0.4s ease;
}

.dag-box {
  fill: #15121d;
  stroke: rgba(242, 238, 248, 0.16);
  stroke-width: 1;
  transition: stroke 0.25s ease;
}

.dag-title {
  fill: #f2eef8;
  font-size: 14px;
  font-weight: 650;
}

.dag-cat {
  font-family: var(--font-mono);
  font-size: 11.5px;
  fill: #d08cf2;
}

.dag-cat[data-cat="ultrabrain"] { fill: #f27bb6; }
.dag-cat[data-cat="visual-engineering"] { fill: #f4a462; }
.dag-cat[data-cat="unspecified-low"] { fill: #f3918a; }
.dag-cat[data-cat="quick"] { fill: #c9dc6b; }

.dag-model {
  fill: #aaa2ba;
  font-size: 12px;
}

.dag-meter {
  fill: rgba(242, 238, 248, 0.14);
}

.dag-meter.on {
  fill: #f27bb6;
}

.dag-status circle {
  fill: #c9dc6b;
  stroke: #c9dc6b;
  stroke-width: 1.5;
  transition: fill 0.3s ease, stroke 0.3s ease;
}

.dag-check {
  fill: none;
  stroke: #0c0a12;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.dag-edge {
  fill: none;
  stroke: url(#dag-flow);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-dasharray: 3 7;
  animation: dag-flow 1.4s linear infinite;
  transition: opacity 0.25s ease, stroke-width 0.25s ease;
}

/* Edges flow in layer order: each layer starts a beat after the one above. */
.dag-edge[data-layer="2"] { animation-delay: 0.35s; }
.dag-edge[data-layer="3"] { animation-delay: 0.7s; }

@keyframes dag-flow {
  to {
    stroke-dashoffset: -20;
  }
}

/* Replay states. */
.dag-node[data-state="waiting"] .dag-aura { opacity: 0.05; }
.dag-node[data-state="waiting"] .dag-status circle { fill: transparent; stroke: rgba(242, 238, 248, 0.38); }
.dag-node[data-state="waiting"] .dag-check,
.dag-node[data-state="running"] .dag-check { display: none; }
.dag-node[data-state="running"] .dag-aura { opacity: 0.5; animation: dag-breathe 1s ease-in-out infinite alternate; }
.dag-node[data-state="running"] .dag-status circle { fill: #f27bb6; stroke: #f27bb6; }
.dag-node[data-state="running"] .dag-box { stroke: rgba(242, 123, 182, 0.7); }
.dag-edge[data-state="idle"] { animation: none; opacity: 0.18; }

@keyframes dag-breathe {
  from { opacity: 0.28; }
  to { opacity: 0.6; }
}

/* Tracing: hover or focus a lane to light its upstream and downstream. */
.dag-svg.is-tracing .dag-node:not(.is-lineage) { opacity: 0.22; }
.dag-svg.is-tracing .dag-edge:not(.is-lineage) { opacity: 0.08; }
.dag-svg.is-tracing .dag-edge.is-lineage { stroke-width: 2.6; }
.dag-node.is-active .dag-aura { opacity: 0.55; }
.dag-node.is-active .dag-box,
.dag-node:focus-visible .dag-box { stroke: #f59ccb; stroke-width: 2; }

.dag-graph figcaption {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px 16px;
  max-width: 460px;
  margin: 16px auto 0;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.dag-replay {
  min-height: 32px;
  padding: 4px 14px;
  border: 1px solid rgba(242, 238, 248, 0.32);
  border-radius: 999px;
  background: transparent;
  color: #f2eef8;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.dag-replay:hover {
  background: rgba(208, 140, 242, 0.16);
}

.dag-replay:disabled {
  opacity: 0.5;
  cursor: default;
}

.dag-live:empty {
  display: none;
}

.dag-live {
  flex-basis: 100%;
  color: #f2eef8;
  font-family: var(--font-mono);
  font-size: 13px;
}

@media (prefers-reduced-motion: reduce) {
  .dag-edge,
  .dag-node[data-state="running"] .dag-aura {
    animation: none;
  }

  .dag-replay {
    display: none;
  }
}

/* --------------------------------------------------------------- install */

.install-availability {
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
}

/* Package-manager commands only show once the release has published them. */
.install-method--package-manager {
  display: none;
}

.section--install[data-package-manager-status="public"] .install-method--package-manager {
  display: block;
}

.install-steps {
  display: grid;
  gap: 40px;
  margin-top: 44px;
  counter-reset: step;
}

.install-step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  column-gap: 20px;
  counter-increment: step;
}

.install-step::before {
  content: counter(step);
  grid-row: span 3;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--ink);
  font-weight: 700;
}

.install-step h3 {
  margin-bottom: 14px;
  font-size: 20px;
  font-weight: 700;
  line-height: 36px;
}

.install-methods {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: 12px;
}

/* The script installers carry long URLs, so each takes a full row. */
.install-methods > .terminal:not(.install-method--package-manager) {
  grid-column: 1 / -1;
}

.install-step__note {
  max-width: 64ch;
  margin-top: 12px;
  color: var(--muted);
  font-size: 15px;
}

.agent-prompt {
  margin-top: 40px;
  margin-left: 64px;
}

.agent-prompt summary,
.chains summary {
  width: fit-content;
  font-weight: 600;
  cursor: pointer;
}

.agent-prompt .terminal {
  margin-top: 14px;
}

/* ------------------------------------------------------------- community */

.community {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 28px 40px;
  margin-top: 40px;
}

.community li {
  padding-left: 16px;
  border-left: 2px solid var(--line-strong);
}

.community a,
.community__pair {
  font-size: 18px;
  font-weight: 650;
}

.community__pair span {
  color: var(--muted);
  font-weight: 500;
}

.community p {
  margin-top: 4px;
  color: var(--muted);
  font-size: 15px;
}

.sponsors {
  margin-top: 56px;
}

.sponsors h3 {
  color: var(--muted);
  font-size: 15px;
  font-weight: 600;
}

.sponsor {
  display: flex;
  align-items: center;
  gap: 24px;
  max-width: 640px;
  margin-top: 14px;
  padding: 18px 20px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg-raise);
  color: var(--muted);
  font-size: 15px;
  text-decoration: none;
}

.sponsor:hover {
  border-color: #4f46e5;
}

.sponsor img {
  flex: none;
  box-sizing: content-box;
  width: 114px;
  padding: 14px 16px;
  border-radius: 10px;
  background: #ffffff;
}

.sponsor strong {
  display: block;
  color: var(--ink);
  font-size: 17px;
}

/* ------------------------------------------------------- models (quiet) */

.section--quiet .section__title {
  font-size: clamp(24px, 3vw, 32px);
}

.route-states {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: 16px 32px;
  margin-top: 28px;
}

.route-states dt {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
}

.route-states dd {
  margin-top: 2px;
  color: var(--muted);
  font-size: 15px;
}

.chains {
  margin-top: 32px;
}

.table-scroll {
  margin-top: 16px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.chain-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 14px;
}

.chain-table th,
.chain-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.chain-table thead th {
  color: var(--muted);
  font-weight: 600;
}

.chain-table tbody tr:last-child > * {
  border-bottom: 0;
}

.chain-table tbody th span {
  font-family: var(--font-mono);
  font-weight: 600;
}

.chain-table td {
  color: var(--muted);
}

.chain-order code {
  color: var(--ink);
  font-size: 13px;
  white-space: nowrap;
}

.chain-arrow {
  margin-inline: 6px;
  color: var(--muted);
}

.chain-badge {
  font-family: var(--font-mono);
  font-size: 13px;
}

.note {
  max-width: 72ch;
  margin-top: 12px;
  color: var(--muted);
  font-size: 15px;
}

.more-link {
  margin-top: 24px;
  font-weight: 500;
}

/* ------------------------------------ ulw-* reference (generated region) */

.section--rail .section__head h2 {
  max-width: 22ch;
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 750;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section--rail .kicker {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 600;
}

.section--rail .section__lead {
  font-size: 16px;
}

.ulw-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
  gap: 0 40px;
  margin-top: 32px;
}

.ulw-row {
  padding-block: 18px;
  border-top: 1px solid var(--line);
}

.ulw-row__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
}

.ulw-row__slug {
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
}

.ulw-row__tag {
  color: var(--muted);
  font-size: 13px;
}

/* The slug already names the row; the generated title stays for readers. */
.ulw-row__body h3 {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.ulw-row__body p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 15px;
}

.ulw-row__say {
  font-size: 13px;
}

.ulw-row__say em {
  font-style: normal;
  font-weight: 600;
}

.ulw-row__say q {
  margin-left: 4px;
  font-family: var(--font-mono);
  quotes: none;
}

/* ---------------------------------------------------------------- footer */

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-sunk);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr));
  gap: 40px;
  width: min(var(--page), 100% - 2 * var(--gutter));
  margin-inline: auto;
  padding-block: 56px 32px;
}

.site-footer__brand img {
  width: 240px;
}

.site-footer__brand p {
  margin-top: 14px;
  color: var(--muted);
  font-size: 15px;
}

.site-footer__col {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 15px;
}

.site-footer__col h2 {
  margin-bottom: 4px;
  font-size: 14px;
  font-weight: 650;
}

.site-footer__col a {
  color: var(--muted);
  text-decoration: none;
}

.site-footer__col a:hover {
  color: var(--ink);
  text-decoration: underline;
}

.site-footer__legal {
  width: min(var(--page), 100% - 2 * var(--gutter));
  margin-inline: auto;
  padding-block: 20px 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

/* ------------------------------------------------------------ responsive */

@media (max-width: 1000px) {
  .aura__pool {
    top: 76%;
    right: 50%;
    margin-right: -360px;
  }

  .stage__pair {
    grid-template-columns: minmax(0, 1fr);
    gap: 48px;
  }
}

@media (max-width: 860px) {
  .features {
    grid-template-columns: minmax(0, 1fr);
  }

  .site-footer__inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 16px;
  }

  .nav__link {
    display: none;
  }

  .gh-star__label,
  .installs__label {
    display: none;
  }

  .gh-star__count {
    padding-left: 7px;
  }
}

@media (max-width: 420px) {
  .brand span {
    display: none;
  }

  .hero__logo {
    width: 72px;
    height: 72px;
    border-radius: 18px;
  }

  .hero__lead,
  .section__lead {
    font-size: 16px;
  }

  .terminal__body {
    font-size: 13px;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
  }

  .stages div {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .install-step {
    grid-template-columns: minmax(0, 1fr);
  }

  .install-step::before {
    grid-row: auto;
    margin-bottom: 10px;
  }

  .agent-prompt {
    margin-left: 0;
  }

  .sponsor {
    flex-direction: column;
    align-items: flex-start;
  }
}

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

  .aura__ribbon,
  .aura__beam i,
  .aura__pool,
  .hero__splash i,
  .dag-node .dag-aura {
    animation: none;
  }

  .aura__spot {
    display: none;
  }
}