:root {
  --bg: #070812;
  --bg-2: #0d1024;
  --surface: rgba(255, 255, 255, 0.075);
  --surface-strong: rgba(255, 255, 255, 0.12);
  --surface-soft: rgba(255, 255, 255, 0.045);
  --line: rgba(255, 255, 255, 0.16);
  --line-strong: rgba(255, 255, 255, 0.28);
  --text: #f5f7ff;
  --muted: rgba(232, 236, 255, 0.72);
  --soft: rgba(232, 236, 255, 0.54);
  --cyan: #62e7ff;
  --mint: #7df7c5;
  --pink: #ff78c7;
  --violet: #a98bff;
  --gold: #ffd37c;
  --danger-soft: #ff9a8a;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 18% 8%, rgba(98, 231, 255, 0.18), transparent 24rem),
    radial-gradient(circle at 82% 18%, rgba(255, 120, 199, 0.13), transparent 22rem),
    radial-gradient(circle at 50% 84%, rgba(125, 247, 197, 0.10), transparent 26rem),
    linear-gradient(135deg, #050611 0%, #0b0d20 42%, #090719 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -4;
  background:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 76px 76px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent 86%);
}

a {
  color: inherit;
}

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

.starfield,
.starfield::before,
.starfield::after {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.starfield {
  z-index: -3;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.72) 0 1px, transparent 1.5px),
    radial-gradient(circle, rgba(98, 231, 255, 0.8) 0 1px, transparent 1.4px);
  background-size: 120px 120px, 210px 210px;
  background-position: 0 0, 44px 72px;
  opacity: 0.42;
}

.starfield::before {
  content: "";
  background-image: radial-gradient(circle, rgba(255, 255, 255, 0.55) 0 1px, transparent 1.5px);
  background-size: 170px 170px;
  background-position: 32px 18px;
  opacity: 0.28;
  animation: starDrift 42s linear infinite;
}

.starfield::after {
  content: "";
  background:
    linear-gradient(110deg, transparent 0 42%, rgba(125, 247, 197, 0.10) 50%, transparent 58%),
    linear-gradient(290deg, transparent 0 44%, rgba(169, 139, 255, 0.10) 52%, transparent 60%);
  opacity: 0.55;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px clamp(18px, 4vw, 48px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.11);
  background: rgba(7, 8, 18, 0.78);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(98, 231, 255, 0.42);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(98, 231, 255, 0.2), rgba(255, 120, 199, 0.14));
  color: var(--cyan);
  font-weight: 900;
  box-shadow: 0 0 26px rgba(98, 231, 255, 0.14);
}

.brand strong,
.brand em {
  display: block;
  letter-spacing: 0;
}

.brand strong {
  font-size: 0.98rem;
  line-height: 1.1;
}

.brand em {
  color: var(--soft);
  font-size: 0.76rem;
  font-style: normal;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a,
.nav-toggle,
.view-button,
.button,
.copy-button {
  min-height: 42px;
  border-radius: var(--radius);
  font: inherit;
  font-size: 0.88rem;
  font-weight: 800;
  line-height: 1;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  padding: 10px 12px;
  color: var(--muted);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}

.site-nav a[aria-current="page"] {
  color: var(--text);
  background: rgba(98, 231, 255, 0.12);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 10px 12px;
}

.section-shell {
  width: min(var(--max), calc(100vw - 34px));
  margin: 0 auto;
}

.hero {
  min-height: calc(100vh - 71px);
  display: grid;
  align-items: center;
  padding: clamp(46px, 8vw, 92px) 0 clamp(40px, 7vw, 78px);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.14fr) minmax(300px, 0.66fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
}

.hero h1 {
  max-width: 940px;
  margin: 0;
  font-size: clamp(3rem, 7vw, 6.1rem);
  line-height: 0.9;
  letter-spacing: 0;
}

.hero-subtitle {
  max-width: 790px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2.1vw, 1.34rem);
}

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

.hero-actions {
  margin-top: 34px;
}

.button,
.copy-button,
.view-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  cursor: pointer;
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.button {
  padding: 12px 15px;
  color: var(--text);
}

.button:hover,
.button:focus-visible,
.copy-button:hover,
.copy-button:focus-visible,
.view-button:hover,
.view-button:focus-visible {
  transform: translateY(-1px);
  outline: none;
}

.button.primary {
  border-color: rgba(98, 231, 255, 0.55);
  background: linear-gradient(135deg, rgba(98, 231, 255, 0.95), rgba(169, 139, 255, 0.84));
  color: #06101a;
  box-shadow: 0 16px 44px rgba(98, 231, 255, 0.18);
}

.button.secondary {
  border-color: rgba(255, 120, 199, 0.44);
  background: rgba(255, 120, 199, 0.12);
}

.button.ghost {
  background: rgba(255, 255, 255, 0.055);
}

.hero-system {
  position: relative;
  min-height: 470px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.035)),
    radial-gradient(circle at 50% 50%, rgba(98, 231, 255, 0.12), transparent 56%);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-system::before {
  content: "";
  position: absolute;
  inset: 22px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 50%;
}

.hero-system::after {
  content: "";
  position: absolute;
  inset: 54px;
  border: 1px dashed rgba(125, 247, 197, 0.3);
  border-radius: 50%;
}

.signal-ring,
.signal-ring span,
.system-node,
.system-core {
  position: absolute;
}

.signal-ring {
  inset: 0;
}

.signal-ring span {
  left: 50%;
  top: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 22px rgba(98, 231, 255, 0.78);
  transform-origin: 0 0;
}

.signal-ring span:nth-child(1) {
  transform: rotate(18deg) translateX(168px);
}

.signal-ring span:nth-child(2) {
  background: var(--pink);
  transform: rotate(150deg) translateX(150px);
}

.signal-ring span:nth-child(3) {
  background: var(--mint);
  transform: rotate(272deg) translateX(136px);
}

.system-core {
  left: 50%;
  top: 50%;
  width: min(70%, 245px);
  padding: 20px;
  text-align: center;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(98, 231, 255, 0.36);
  border-radius: var(--radius);
  background: rgba(8, 9, 20, 0.76);
}

.system-core strong {
  display: block;
  color: var(--text);
  font-size: 1.25rem;
  line-height: 1.08;
}

.system-core span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.88rem;
}

.system-node {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.09);
  color: var(--text);
  padding: 8px 11px;
  font-size: 0.82rem;
  font-weight: 850;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.2);
}

.node-artist {
  left: 22px;
  top: 70px;
}

.node-agent {
  right: 24px;
  top: 96px;
}

.node-dsp {
  right: 34px;
  bottom: 78px;
}

.node-feedback {
  left: 26px;
  bottom: 104px;
}

.view-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  margin-top: -8px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(18px);
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.2);
}

.view-copy h2,
.view-copy p {
  margin: 0;
}

.view-copy h2 {
  font-size: clamp(1.35rem, 3vw, 2.25rem);
  line-height: 1;
}

.view-copy p {
  max-width: 760px;
  margin-top: 8px;
  color: var(--muted);
}

.view-toggle {
  display: inline-flex;
  gap: 6px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.18);
}

.view-button {
  padding: 10px 12px;
  background: transparent;
  color: var(--muted);
}

.view-button.is-active {
  border-color: rgba(98, 231, 255, 0.5);
  background: rgba(98, 231, 255, 0.16);
  color: var(--text);
}

.section-pad {
  padding: clamp(64px, 9vw, 108px) 0 0;
}

.section-head {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  justify-items: start;
  margin-bottom: 28px;
}

.section-head.stacked {
  max-width: 860px;
}

.section-index {
  display: inline-grid;
  min-width: 42px;
  width: max-content;
  max-width: 100%;
  height: 42px;
  place-items: center;
  padding: 0 10px;
  border: 1px solid rgba(98, 231, 255, 0.35);
  border-radius: var(--radius);
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 900;
  line-height: 1;
  white-space: nowrap;
}

.section-head h2 {
  margin: 0;
  max-width: 860px;
  font-size: clamp(2.35rem, 6vw, 5.5rem);
  line-height: 0.92;
  letter-spacing: 0;
}

.dense-reference .section-head h2 {
  max-width: 980px;
  font-size: clamp(2.25rem, 4.5vw, 4.3rem);
  line-height: 0.96;
}

.section-head p,
.section-plain {
  max-width: 850px;
  color: var(--muted);
  font-size: clamp(1rem, 1.8vw, 1.16rem);
}

.section-head p {
  margin: 18px 0 0;
}

.section-plain {
  margin: -8px 0 28px 76px;
}

.card-grid {
  display: grid;
  gap: 16px;
}

.card-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card-grid.five {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.glass-card,
.pipeline-card,
.contribution-panel,
.note-card,
.code-panel,
.roadmap-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--surface), rgba(255, 255, 255, 0.035));
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06) inset;
}

.glass-card {
  min-height: 190px;
  padding: 18px;
}

.glass-card::before,
.pipeline-card::before,
.roadmap-card::before {
  content: "";
  display: block;
  width: 42px;
  height: 3px;
  margin-bottom: 18px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
}

.glass-card.accent-a::before {
  background: linear-gradient(90deg, var(--cyan), var(--mint));
}

.glass-card.accent-b::before {
  background: linear-gradient(90deg, var(--pink), var(--violet));
}

.glass-card.accent-c::before {
  background: linear-gradient(90deg, var(--gold), var(--pink));
}

.glass-card.accent-d::before {
  background: linear-gradient(90deg, var(--mint), var(--gold));
}

.glass-card h3,
.pipeline-card h3,
.contribution-panel h3,
.roadmap-card h3 {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.12;
}

.glass-card p,
.pipeline-card p,
.roadmap-card p {
  margin: 12px 0 0;
  color: var(--muted);
}

.pipeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  counter-reset: stage;
}

.pipeline-card {
  position: relative;
  min-height: 230px;
  padding: 18px;
}

.pipeline-card::after {
  content: "";
  position: absolute;
  top: 42px;
  right: -18px;
  width: 18px;
  height: 1px;
  background: linear-gradient(90deg, rgba(98, 231, 255, 0.75), transparent);
}

.pipeline-card:nth-child(4)::after,
.pipeline-card:nth-child(8)::after {
  display: none;
}

.stage-number {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--cyan);
  font-size: 0.76rem;
  font-weight: 900;
}

.tag-row {
  margin-top: 16px;
}

.tag-row span {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 4px 8px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.055);
  color: var(--soft);
  font-size: 0.76rem;
  font-weight: 800;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.48fr);
  gap: 18px;
  align-items: start;
}

.split-section .section-head {
  grid-column: 1 / -1;
}

.contribution-panel {
  padding: 20px;
  background:
    linear-gradient(145deg, rgba(98, 231, 255, 0.08), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.05);
}

.contribution-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.contribution-card {
  display: grid;
  grid-template-columns: minmax(140px, 0.32fr) minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  padding: 13px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.16);
}

.contribution-card strong,
.contribution-card span {
  display: block;
}

.contribution-card span {
  color: var(--soft);
  font-size: 0.82rem;
}

.bar {
  height: 13px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 999px;
  background: rgba(255, 120, 199, 0.18);
}

.bar span {
  display: block;
  width: calc(var(--human) * 1%);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--mint), var(--cyan));
  box-shadow: 0 0 18px rgba(98, 231, 255, 0.25);
}

.note-card {
  padding: 24px;
  background:
    linear-gradient(145deg, rgba(255, 211, 124, 0.13), rgba(255, 120, 199, 0.07)),
    rgba(255, 255, 255, 0.045);
}

.note-card p {
  margin: 0;
  color: var(--text);
  font-size: clamp(1.5rem, 3.5vw, 2.65rem);
  font-weight: 900;
  line-height: 1.02;
}

.schema-section {
  max-width: 1040px;
}

.code-panel {
  overflow: hidden;
  background: rgba(3, 5, 14, 0.84);
}

.code-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  color: var(--soft);
  font-size: 0.84rem;
  font-weight: 850;
}

.copy-button {
  padding: 10px 12px;
  border-color: rgba(125, 247, 197, 0.4);
  background: rgba(125, 247, 197, 0.1);
  color: var(--text);
}

pre {
  margin: 0;
  overflow: auto;
  padding: 20px;
}

code {
  color: #dff8ff;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: clamp(0.78rem, 2.4vw, 0.94rem);
  line-height: 1.58;
}

.signal-section {
  padding-bottom: clamp(8px, 3vw, 28px);
}

.signal-section .section-head {
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid rgba(255, 211, 124, 0.28);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 211, 124, 0.10), rgba(169, 139, 255, 0.07)),
    rgba(255, 255, 255, 0.045);
}

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(140px, 1fr));
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.roadmap-card {
  min-height: 170px;
  padding: 16px;
}

.roadmap-card span {
  display: block;
  margin-bottom: 12px;
  color: var(--cyan);
  font-size: 0.76rem;
  font-weight: 900;
}

.roadmap-card h3 {
  font-size: 1rem;
}

.site-footer {
  width: min(var(--max), calc(100vw - 34px));
  margin: clamp(64px, 10vw, 120px) auto 0;
  padding: 28px 0 38px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer p {
  max-width: 850px;
  margin: 0;
  font-size: clamp(1rem, 2.5vw, 1.28rem);
}

.site-footer a {
  display: inline-flex;
  margin-top: 18px;
  color: var(--text);
  font-weight: 850;
  text-decoration-color: rgba(98, 231, 255, 0.4);
  text-underline-offset: 0.2em;
}

.contact-bridge .contact-card {
  min-height: 0;
  max-width: 760px;
}

.contact-bridge .button {
  margin-top: 18px;
}

.page-hero {
  width: min(var(--max), calc(100vw - 34px));
  margin: 0 auto;
  padding: clamp(56px, 9vw, 112px) 0 clamp(18px, 4vw, 42px);
}

.page-hero h1 {
  max-width: 920px;
  margin: 0;
  font-size: clamp(3rem, 8vw, 6.8rem);
  line-height: 0.9;
  letter-spacing: 0;
}

.page-hero p {
  max-width: 780px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.builder-flow {
  display: grid;
  gap: 10px;
  margin-top: clamp(18px, 3vw, 34px);
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.055);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06) inset;
}

.builder-flow-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.flow-link span {
  color: var(--soft);
  font-size: 0.78rem;
  font-weight: 800;
}

.flow-link {
  min-height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--radius);
  background: rgba(3, 5, 14, 0.34);
  color: var(--muted);
  text-decoration: none;
}

.flow-link:hover,
.flow-link:focus-visible {
  border-color: rgba(98, 231, 255, 0.45);
  color: var(--text);
  outline: none;
}

.flow-link {
  display: inline-grid;
  flex: 1 1 220px;
  min-width: 170px;
  padding: 10px 12px;
}

.flow-link strong {
  color: var(--text);
  font-size: 0.86rem;
  line-height: 1.1;
}

.flow-link.primary {
  border-color: rgba(98, 231, 255, 0.44);
  background: rgba(98, 231, 255, 0.13);
}

.tier-strip,
.spec-grid,
.spec-matrix {
  display: grid;
  gap: 10px;
}

.tier-strip {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-top: 16px;
}

.tier-strip article,
.spec-grid article,
.spec-matrix article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.055);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06) inset;
}

.tier-strip article {
  padding: 13px;
}

.tier-strip span {
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.tier-strip p,
.spec-grid p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.spec-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.family-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.spec-grid article {
  padding: 16px;
}

.spec-grid h3,
.spec-matrix h3 {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.15;
}

.spec-matrix {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.spec-matrix article {
  display: grid;
  gap: 8px;
  align-content: start;
  min-height: 196px;
  padding: 15px;
}

.spec-matrix span {
  width: max-content;
  max-width: 100%;
  padding: 5px 8px;
  border: 1px solid rgba(98, 231, 255, 0.24);
  border-radius: 999px;
  color: var(--cyan);
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.spec-matrix p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.source-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.source-list a {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.055);
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 850;
  text-decoration: none;
}

.source-list a:hover,
.source-list a:focus-visible {
  border-color: rgba(98, 231, 255, 0.45);
  outline: none;
}

.tool-card {
  display: grid;
  min-height: 230px;
  align-content: start;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--surface), rgba(255, 255, 255, 0.035));
  color: var(--text);
  text-decoration: none;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06) inset;
}

.tool-card:hover,
.tool-card:focus-visible {
  border-color: rgba(98, 231, 255, 0.45);
  outline: none;
  transform: translateY(-1px);
}

.tool-card span {
  display: inline-flex;
  width: max-content;
  min-height: 30px;
  align-items: center;
  padding: 5px 9px;
  border: 1px solid rgba(98, 231, 255, 0.28);
  border-radius: 999px;
  color: var(--cyan);
  font-size: 0.76rem;
  font-weight: 900;
}

.tool-card h3 {
  margin: 24px 0 0;
  font-size: 1.25rem;
  line-height: 1.1;
}

.tool-card p {
  margin: 12px 0 0;
  color: var(--muted);
}

.compact-pipeline {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.tool-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.58fr);
  gap: 18px;
  align-items: start;
  padding-top: clamp(28px, 5vw, 54px);
}

.tool-form,
.output-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--surface), rgba(255, 255, 255, 0.035));
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06) inset;
}

.tool-form {
  display: grid;
  gap: 16px;
  padding: clamp(16px, 3vw, 24px);
}

.conversation-step {
  display: grid;
  gap: 14px;
  min-width: 0;
  margin: 0;
  padding: 0 0 18px 18px;
  border: 0;
  border-left: 1px solid rgba(98, 231, 255, 0.24);
}

.conversation-step:last-of-type {
  padding-bottom: 0;
}

.conversation-step legend {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 4px -18px;
  padding: 0 0 2px;
  color: var(--text);
  font-size: 1.02rem;
  font-weight: 900;
  line-height: 1.2;
}

.conversation-step legend span {
  display: inline-grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid rgba(98, 231, 255, 0.35);
  border-radius: var(--radius);
  background: rgba(98, 231, 255, 0.11);
  color: var(--cyan);
  font-size: 0.76rem;
}

.guide-copy {
  margin: -4px 0 0;
  color: var(--muted);
  font-size: 0.91rem;
}

.form-grid,
.slider-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.tool-form label {
  display: grid;
  gap: 8px;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 850;
}

.field-hint {
  max-width: 100%;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
  line-height: 1.35;
}

.tool-form input,
.tool-form select,
.tool-form textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  background: rgba(3, 5, 14, 0.58);
  color: var(--text);
  font: inherit;
  font-size: 0.95rem;
  line-height: 1.45;
  padding: 12px;
}

.tool-form textarea {
  min-height: 110px;
  resize: vertical;
}

.tool-form input::placeholder,
.tool-form textarea::placeholder {
  color: rgba(232, 236, 255, 0.38);
}

.tool-form input:focus,
.tool-form select:focus,
.tool-form textarea:focus,
.output-panel textarea:focus {
  border-color: rgba(98, 231, 255, 0.72);
  outline: none;
  box-shadow: 0 0 0 3px rgba(98, 231, 255, 0.12);
}

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

.choice-grid label {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  align-items: start;
  align-content: start;
  justify-items: start;
  column-gap: 11px;
  row-gap: 0;
  min-height: 46px;
  padding: 11px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.14);
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
  line-height: 1.35;
  text-align: left;
  overflow-wrap: anywhere;
  white-space: normal;
}

.choice-grid label span {
  display: block;
  min-width: 0;
  align-self: start;
}

.choice-grid input {
  width: 16px;
  height: 16px;
  margin: 1px 0 0;
  accent-color: var(--cyan);
  justify-self: start;
}

.slider-grid label {
  padding: 13px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.14);
}

.slider-grid output {
  color: var(--mint);
  font-weight: 900;
}

.tool-form input[type="range"] {
  accent-color: var(--cyan);
}

.generator-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 4px;
}

.output-panel {
  position: sticky;
  top: 88px;
  display: grid;
  gap: 12px;
  padding: clamp(16px, 3vw, 22px);
}

.output-panel h2,
.output-panel p {
  margin: 0;
}

.output-panel h2 {
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  line-height: 1;
}

.output-panel p {
  color: var(--muted);
}

.output-panel textarea {
  width: 100%;
  min-height: 520px;
  resize: vertical;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  background: rgba(3, 5, 14, 0.82);
  color: #e7fbff;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.86rem;
  line-height: 1.55;
  padding: 14px;
}

.status-line {
  min-height: 24px;
  color: var(--mint) !important;
  font-size: 0.86rem;
  font-weight: 850;
}

.to-top-button {
  position: fixed;
  right: clamp(14px, 4vw, 28px);
  bottom: clamp(14px, 4vw, 28px);
  z-index: 35;
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid rgba(98, 231, 255, 0.4);
  border-radius: 999px;
  background: rgba(7, 8, 18, 0.82);
  color: var(--cyan);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 180ms ease, transform 180ms ease, border-color 180ms ease;
  backdrop-filter: blur(16px);
  box-shadow: 0 12px 42px rgba(0, 0, 0, 0.32), 0 0 22px rgba(98, 231, 255, 0.14);
}

.to-top-button.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.to-top-button:hover,
.to-top-button:focus-visible {
  border-color: rgba(125, 247, 197, 0.62);
  outline: none;
}

.to-top-button span {
  font-size: 1.35rem;
  line-height: 1;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.site-footer nav a {
  margin-top: 0;
}

@keyframes starDrift {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(-90px, 60px, 0);
  }
}

@media (max-width: 1100px) {
  .card-grid.four,
  .card-grid.five,
  .pipeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pipeline-card:nth-child(4)::after {
    display: block;
  }

  .pipeline-card:nth-child(2)::after,
  .pipeline-card:nth-child(4)::after,
  .pipeline-card:nth-child(6)::after,
  .pipeline-card:nth-child(8)::after {
    display: none;
  }
}

@media (max-width: 1040px) {
  .site-header {
    align-items: flex-start;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(7, 8, 18, 0.95);
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    justify-content: center;
  }

  .hero-grid,
  .view-panel,
  .split-section,
  .tool-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero h1 {
    font-size: clamp(3.05rem, 16vw, 5.8rem);
  }

  .hero-system {
    min-height: 360px;
  }

  .section-head,
  .section-head.stacked {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .section-plain {
    margin-left: 0;
  }

  .card-grid.three,
  .card-grid.four,
  .card-grid.five,
  .pipeline,
  .compact-pipeline,
  .tier-strip,
  .spec-grid,
  .spec-matrix,
  .form-grid,
  .slider-grid,
  .choice-grid {
    grid-template-columns: 1fr;
  }

  .pipeline-card::after {
    display: none;
  }

  .glass-card {
    min-height: 0;
  }

  .contribution-card {
    grid-template-columns: 1fr;
  }

  .output-panel {
    position: static;
  }

  .builder-flow-actions {
    align-items: stretch;
  }

  .flow-link {
    min-width: 0;
    flex: 1 1 180px;
  }
}

@media (max-width: 560px) {
  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .brand strong {
    max-width: 210px;
    font-size: 0.9rem;
  }

  .hero-actions,
  .view-toggle {
    width: 100%;
  }

  .button,
  .view-button,
  .generator-actions .button {
    width: 100%;
  }

  .page-hero h1 {
    font-size: clamp(2.75rem, 15vw, 4.5rem);
  }

  .view-toggle {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero-system {
    min-height: 320px;
  }

  .system-node {
    max-width: 126px;
    font-size: 0.75rem;
  }

  .system-core {
    width: 68%;
    padding: 16px;
  }

  .system-core strong {
    font-size: 1.05rem;
  }

  .signal-ring span:nth-child(1) {
    transform: rotate(18deg) translateX(116px);
  }

  .signal-ring span:nth-child(2) {
    transform: rotate(150deg) translateX(112px);
  }

  .signal-ring span:nth-child(3) {
    transform: rotate(272deg) translateX(100px);
  }

  .node-artist {
    left: 14px;
    top: 54px;
  }

  .node-agent {
    right: 14px;
    top: 76px;
  }

  .node-dsp {
    right: 14px;
    bottom: 58px;
  }

  .node-feedback {
    left: 14px;
    bottom: 78px;
  }

  .code-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .copy-button {
    width: 100%;
  }

  .conversation-step {
    padding-left: 13px;
  }

  .conversation-step legend {
    margin-left: -13px;
  }

  .to-top-button {
    width: 44px;
    height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}