:root {
  color-scheme: dark;
  --bg: #081411;
  --bg-deep: #050d0b;
  --surface: #0c1c18;
  --surface-raised: #10251f;
  --line: #254238;
  --line-soft: rgba(149, 185, 169, 0.17);
  --text: #e9f3ee;
  --muted: #97aa9f;
  --accent: #ff9b51;
  --accent-light: #ffc08d;
  --mint: #72e2b2;
  --danger: #ff796f;
  --max: 1180px;
  --mono: "SFMono-Regular", "Cascadia Code", "Liberation Mono", Menlo, monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --page-progress: 0;
  --hero-scroll: 0px;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 65% 8%, rgba(58, 144, 111, 0.11), transparent 30rem),
    var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

button,
select,
textarea {
  color: inherit;
  font: inherit;
}

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

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 1rem;
  left: 1rem;
  padding: 0.7rem 1rem;
  background: var(--text);
  color: var(--bg-deep);
  transform: translateY(-180%);
}

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

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.75rem;
  padding: 0 5vw;
  border-bottom: 1px solid transparent;
  background: rgba(8, 20, 17, 0.78);
  backdrop-filter: blur(18px);
  box-shadow: 0 0 0 rgba(0, 0, 0, 0);
  transition: border-color 300ms ease, background-color 300ms ease, box-shadow 300ms ease;
}

.site-header::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--mint), var(--accent));
  content: "";
  transform: scaleX(var(--page-progress));
  transform-origin: left;
}

.site-header.is-scrolled {
  border-color: var(--line-soft);
  background: rgba(6, 16, 13, 0.9);
  box-shadow: 0 0.75rem 2.5rem rgba(0, 0, 0, 0.16);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  font-family: var(--mono);
  font-size: 1.12rem;
  font-weight: 700;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  color: var(--accent);
  background: #0a1713;
  font-size: 0.85rem;
  transition: border-color 350ms ease, box-shadow 350ms ease, transform 350ms var(--ease-spring);
}

.brand-mark span {
  color: var(--mint);
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(0.85rem, 1.6vw, 1.5rem);
}

nav a {
  position: relative;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 220ms ease;
}

nav a:not(.nav-github)::after {
  position: absolute;
  right: 0;
  bottom: -0.55rem;
  left: 0;
  height: 1px;
  background: var(--mint);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 360ms var(--ease-out-expo);
}

nav a:not(.nav-github):hover::after,
nav a:not(.nav-github).is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

nav a:hover {
  color: var(--text);
}

.brand:hover .brand-mark {
  border-color: #517568;
  box-shadow: 0 0.7rem 1.8rem rgba(0, 0, 0, 0.22);
  transform: rotate(-3deg) scale(1.05);
}

.nav-github {
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 0.35rem;
}

.hero,
.section,
footer {
  width: min(var(--max), calc(100% - 10vw));
  margin-inline: auto;
}

.hero {
  position: relative;
  --hero-pointer-x: 0px;
  --hero-pointer-y: 0px;
  min-height: calc(100vh - 4.75rem);
  padding: clamp(5rem, 11vh, 8rem) 0 4rem;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  z-index: -1;
  top: -5rem;
  right: -15rem;
  width: 42rem;
  height: 42rem;
  border: 1px solid rgba(114, 226, 178, 0.1);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(114, 226, 178, 0.08), transparent 66%);
  box-shadow: 0 0 0 6rem rgba(114, 226, 178, 0.015), 0 0 0 12rem rgba(114, 226, 178, 0.01);
  transform: translate3d(var(--hero-pointer-x), calc(var(--hero-pointer-y) + var(--hero-scroll)), 0);
  transition: transform 900ms var(--ease-out-expo);
  will-change: transform;
}

.hero-glow::before,
.hero-glow::after {
  position: absolute;
  border: 1px solid rgba(255, 192, 141, 0.12);
  border-radius: 50%;
  content: "";
  inset: 14%;
}

.hero-glow::before {
  border-right-color: rgba(255, 155, 81, 0.48);
  border-bottom-color: rgba(114, 226, 178, 0.32);
  animation: orbit-drift 24s linear infinite;
}

.hero-glow::after {
  border-top-color: rgba(114, 226, 178, 0.42);
  inset: 31%;
  animation: orbit-drift 18s linear infinite reverse;
}

.eyebrow,
.section-label,
.mono-kicker {
  color: var(--mint);
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.eyebrow span {
  width: 1.7rem;
  height: 1px;
  background: var(--mint);
}

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

h1 {
  max-width: 920px;
  margin: 1.4rem 0 1.5rem;
  font-size: clamp(3.35rem, 8.6vw, 7.5rem);
  font-weight: 530;
  letter-spacing: -0.075em;
  line-height: 0.92;
}

h1 em {
  background: linear-gradient(100deg, var(--accent) 20%, #ffd2ad 44%, var(--mint) 51%, var(--accent) 64%);
  background-position: 100% 50%;
  background-size: 260% 100%;
  color: var(--accent);
  font-style: normal;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: title-sheen 1.4s 900ms var(--ease-out-expo) both;
}

.hero-copy {
  max-width: 720px;
  color: #b8c9c0;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
}

.hero-copy strong {
  color: var(--text);
}

code {
  color: var(--accent-light);
  font-family: var(--mono);
}

.hero-actions,
.inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 0 0 rgba(0, 0, 0, 0);
  transition: transform 380ms var(--ease-spring), background 220ms ease, border-color 220ms ease, box-shadow 380ms ease;
}

.button:hover {
  transform: translateY(-3px) scale(1.012);
}

.button:active {
  transform: translateY(0) scale(0.98);
}

.button-primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #261208;
}

.button-primary:hover {
  border-color: var(--accent-light);
  background: var(--accent-light);
  box-shadow: 0 0.8rem 2rem rgba(255, 155, 81, 0.2);
}

.button-quiet {
  background: rgba(12, 28, 24, 0.72);
  color: var(--text);
}

.button-quiet:hover {
  border-color: #4c6d60;
  background: var(--surface-raised);
}

.unofficial-note {
  margin: 1.2rem 0 0;
  color: #768c80;
  font-size: 0.78rem;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: clamp(5rem, 12vh, 9rem);
  border-top: 1px solid var(--line-soft);
}

.signal-grid article {
  padding: 1.75rem 1.6rem 0 0;
  border-right: 1px solid var(--line-soft);
}

.signal-grid article + article {
  padding-left: 1.6rem;
}

.signal-grid article:last-child {
  border-right: 0;
}

.signal-number {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.signal-grid h2 {
  margin: 0.75rem 0 0.45rem;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.signal-grid p {
  max-width: 18rem;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.section {
  padding: clamp(5rem, 10vw, 9rem) 0;
  border-top: 1px solid var(--line-soft);
}

.section-label {
  margin-bottom: 2rem;
  color: var(--accent);
}

.section-label::before {
  content: "// ";
  color: #557166;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(18rem, 0.75fr);
  gap: 3rem;
  align-items: end;
  margin-bottom: 3rem;
}

.section-heading h2 {
  margin-bottom: 0;
  font-size: clamp(2.15rem, 5.3vw, 4.7rem);
  font-weight: 540;
  letter-spacing: -0.06em;
  line-height: 1;
}

.section-heading > p,
.section-heading > div > p {
  margin-bottom: 0;
  color: var(--muted);
}

.install .section-heading {
  align-items: start;
}

.command-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.2rem 1.15rem 1.45rem;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  background: #06100d;
  box-shadow: inset 4px 0 var(--accent);
}

.command-box code {
  overflow-x: auto;
  color: var(--text);
  font-size: clamp(0.7rem, 1.5vw, 0.9rem);
  white-space: nowrap;
}

.copy-button,
.terminal-bar button {
  flex: 0 0 auto;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.3rem;
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.72rem;
}

.copy-button:hover,
.terminal-bar button:hover {
  color: var(--text);
  border-color: #527366;
}

.platform-row {
  display: flex;
  flex-wrap: wrap;
  margin-top: 1rem;
  border: 1px solid var(--line-soft);
  border-radius: 0.4rem;
}

.platform-row span {
  flex: 1 1 12rem;
  padding: 0.75rem 1rem;
  border-right: 1px solid var(--line-soft);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.74rem;
  text-align: center;
}

.platform-row span:last-child {
  border-right: 0;
}

.platform-row b {
  color: var(--text);
  font-weight: 600;
}

.install-detail {
  max-width: 840px;
  margin: 1.4rem 0 0;
  color: #7f9489;
  font-size: 0.84rem;
}

.inline-links a {
  color: var(--mint);
  font-family: var(--mono);
  font-size: 0.8rem;
  text-underline-offset: 0.28rem;
}

.playground-heading {
  align-items: end;
}

.connection-state {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid #6b4631;
  border-radius: 2rem;
  color: var(--accent-light);
  background: rgba(100, 52, 25, 0.18);
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.connection-state.is-live {
  border-color: #39765f;
  color: #adf8d5;
  background: rgba(38, 113, 83, 0.18);
}

.connection-state.is-live .status-dot {
  animation: status-breathe 2.6s ease-in-out infinite;
}

.status-dot {
  width: 0.48rem;
  height: 0.48rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0.7rem rgba(255, 155, 81, 0.75);
}

.is-live .status-dot {
  background: var(--mint);
  box-shadow: 0 0 0.7rem rgba(114, 226, 178, 0.8);
}

.terminal-shell {
  overflow: hidden;
  border: 1px solid #345247;
  border-radius: 0.55rem;
  background: #06100d;
  box-shadow: 0 2rem 6rem rgba(0, 0, 0, 0.28);
  transition: border-color 450ms ease, box-shadow 600ms var(--ease-out-expo), transform 600ms var(--ease-out-expo);
}

.terminal-shell:hover,
.terminal-shell:focus-within {
  --surface-lift: -3px;
  border-color: #4f7667;
  box-shadow: 0 2.6rem 7rem rgba(0, 0, 0, 0.36), 0 0 0 1px rgba(114, 226, 178, 0.06);
  transform: translateY(-3px);
}

.terminal-bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 2.9rem;
  padding: 0 0.9rem;
  border-bottom: 1px solid var(--line);
  background: #0b1a16;
  color: #6f877b;
  font-family: var(--mono);
  font-size: 0.7rem;
}

.terminal-bar button {
  justify-self: end;
}

.traffic-lights {
  display: flex;
  gap: 0.38rem;
}

.traffic-lights span {
  width: 0.58rem;
  height: 0.58rem;
  border-radius: 50%;
  background: #426057;
}

.traffic-lights span:first-child {
  background: #c9685d;
}

.traffic-lights span:nth-child(2) {
  background: #d9a45f;
}

.traffic-lights span:last-child {
  background: #5aaa80;
}

.terminal-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 27rem;
}

.terminal-input-pane,
.terminal-output-pane {
  min-width: 0;
  padding: clamp(1.2rem, 3vw, 2rem);
}

.terminal-input-pane {
  border-right: 1px solid var(--line);
}

.terminal-input-pane > label {
  display: block;
  margin-bottom: 0.75rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.76rem;
}

.prompt-mark {
  margin-right: 0.5rem;
  color: var(--mint);
}

textarea {
  width: 100%;
  min-height: 10.5rem;
  resize: vertical;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  background: #0a1713;
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.65;
}

textarea::placeholder {
  color: #53685e;
}

.pairing-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.7rem;
  align-items: center;
  margin-top: 0.85rem;
}

.pairing-row label {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.pairing-row input {
  min-width: 0;
  min-height: 3rem;
  padding: 0 0.7rem;
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  background: var(--surface);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.78rem;
}

.pairing-row input::placeholder {
  color: #53685e;
}

.terminal-controls {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.7rem;
  align-items: center;
  margin-top: 0.85rem;
}

.terminal-controls label {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
}

select {
  min-height: 3rem;
  padding: 0 0.7rem;
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  background: var(--surface);
  font-family: var(--mono);
  font-size: 0.78rem;
}

button.button {
  cursor: pointer;
}

button:disabled {
  cursor: wait;
  opacity: 0.65;
  transform: none;
}

.privacy-note {
  margin: 1rem 0 0;
  color: #6f8579;
  font-size: 0.72rem;
}

.privacy-note span {
  color: var(--mint);
}

.output-label {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  color: #60786c;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
}

.output-label strong {
  max-width: 19rem;
  color: var(--accent-light);
  font-weight: 700;
  text-align: right;
}

.output-label strong.is-live {
  color: var(--mint);
}

pre {
  max-height: 23rem;
  margin: 0;
  overflow: auto;
  color: #bfd3c8;
  font-family: var(--mono);
  font-size: 0.76rem;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}

.bridge-help {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.2rem;
  max-width: 820px;
  margin: 1.4rem auto 0;
  padding: 1.1rem 1.3rem;
  border-left: 2px solid var(--mint);
  background: rgba(13, 35, 29, 0.62);
}

.bridge-help > div:first-child {
  color: var(--mint);
  font-family: var(--mono);
  font-size: 1.2rem;
}

.bridge-help h3 {
  margin-bottom: 0.2rem;
  font-size: 0.95rem;
}

.bridge-help p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1.15fr auto 1fr auto 1fr;
  align-items: stretch;
  margin: 4rem 0;
}

.flow-step {
  min-width: 0;
  padding: 1.15rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  background: var(--surface);
  text-align: center;
  transition: border-color 350ms ease, background-color 350ms ease, box-shadow 450ms ease, transform 450ms var(--ease-spring);
}

.flow-step span,
.flow-step small {
  display: block;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.62rem;
}

.flow-step strong {
  display: block;
  margin: 0.35rem 0;
  font-size: 0.93rem;
}

.flow-step.flow-accent {
  border-color: #847249;
  background: linear-gradient(145deg, rgba(255, 155, 81, 0.13), rgba(114, 226, 178, 0.08));
}

.flow-step.flow-accent strong {
  color: var(--accent-light);
}

.flow-step:hover {
  --surface-lift: -4px;
  border-color: #4c6e60;
  box-shadow: 0 1rem 2.6rem rgba(0, 0, 0, 0.16);
  transform: translateY(-4px);
}

.flow-step.flow-accent:hover {
  border-color: var(--accent);
}

.flow-arrow {
  align-self: center;
  padding: 0 0.4rem;
  color: #527064;
  font-family: var(--mono);
}

.principles-grid,
.command-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: 0.45rem;
  background: var(--line-soft);
}

.principles-grid article,
.command-grid article {
  padding: 1.7rem;
  background: var(--surface);
}

.signal-grid article,
.principles-grid article,
.command-grid article,
.bridge-help {
  transition: background-color 350ms ease, box-shadow 450ms ease, transform 450ms var(--ease-spring);
}

.signal-grid article:hover,
.principles-grid article:hover,
.command-grid article:hover,
.bridge-help:hover {
  --surface-lift: -5px;
  background-color: #10251f;
  box-shadow: 0 1.4rem 3.5rem rgba(0, 0, 0, 0.15);
  transform: translateY(-5px);
}

.mono-kicker {
  margin-bottom: 0.9rem;
  color: var(--accent);
  font-size: 0.66rem;
}

.principles-grid h3 {
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
}

.principles-grid article > p:last-child,
.command-grid p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.safety-layout {
  display: grid;
  grid-template-columns: minmax(17rem, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(3rem, 8vw, 7rem);
}

.safety-layout .section-heading {
  display: block;
  margin-bottom: 0;
}

.safety-layout .section-heading h2 {
  margin-bottom: 1.4rem;
}

.guard-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.guard-list li {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 1.5rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--line);
}

.guard-list span {
  color: var(--mint);
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
}

.guard-list p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

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

.command-grid article {
  min-height: 9.5rem;
}

.command-grid code {
  display: inline-block;
  margin-bottom: 1rem;
  font-size: 0.8rem;
}

.closing {
  padding-block: clamp(6rem, 13vw, 11rem);
  text-align: center;
}

.closing h2 {
  margin: 1rem 0 2rem;
  font-size: clamp(2.5rem, 7vw, 6rem);
  font-weight: 520;
  letter-spacing: -0.07em;
  line-height: 0.98;
}

.closing .hero-actions {
  justify-content: center;
}

footer {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 2rem;
  align-items: center;
  padding: 2.4rem 0;
  border-top: 1px solid var(--line-soft);
}

footer p {
  max-width: 650px;
  margin: 0;
  color: #6f8378;
  font-size: 0.72rem;
}

footer > div {
  display: flex;
  gap: 1.1rem;
}

footer > div a {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
}

.toast {
  position: fixed;
  z-index: 50;
  right: 1.5rem;
  bottom: 1.5rem;
  padding: 0.7rem 1rem;
  border: 1px solid #5f7e70;
  border-radius: 0.35rem;
  background: var(--surface-raised);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.74rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(0.5rem);
  transition: opacity 150ms ease, transform 150ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.motion-surface {
  position: relative;
  --surface-lift: 0px;
  isolation: isolate;
}

.motion-surface::before {
  position: absolute;
  z-index: 0;
  background: radial-gradient(26rem circle at var(--spotlight-x, 50%) var(--spotlight-y, 50%), rgba(114, 226, 178, 0.09), rgba(255, 155, 81, 0.025) 38%, transparent 68%);
  content: "";
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 450ms ease;
}

.motion-surface.is-pointer-active::before {
  opacity: 1;
}

.motion-surface > * {
  position: relative;
  z-index: 1;
}

@keyframes orbit-drift {
  to {
    transform: rotate(360deg);
  }
}

@keyframes title-sheen {
  from {
    background-position: 100% 50%;
  }
  to {
    background-position: 0% 50%;
  }
}

@keyframes status-breathe {
  50% {
    box-shadow: 0 0 0 0.35rem rgba(114, 226, 178, 0.08), 0 0 1.1rem rgba(114, 226, 178, 0.9);
  }
}

@media (prefers-reduced-motion: no-preference) {
  html.motion-ready .hero > .eyebrow,
  html.motion-ready .hero > h1,
  html.motion-ready .hero > .hero-copy,
  html.motion-ready .hero > .hero-actions,
  html.motion-ready .hero > .unofficial-note,
  html.motion-ready .hero .signal-grid article {
    opacity: 0;
    transform: translate3d(0, 1.5rem, 0);
    transition: opacity 850ms var(--ease-out-expo), transform 850ms var(--ease-out-expo);
  }

  html.motion-ready.motion-loaded .hero > .eyebrow,
  html.motion-ready.motion-loaded .hero > h1,
  html.motion-ready.motion-loaded .hero > .hero-copy,
  html.motion-ready.motion-loaded .hero > .hero-actions,
  html.motion-ready.motion-loaded .hero > .unofficial-note,
  html.motion-ready.motion-loaded .hero .signal-grid article {
    opacity: 1;
    transform: translate3d(0, var(--surface-lift, 0px), 0);
  }

  html.motion-ready.motion-loaded .hero > h1 {
    transition-delay: 80ms;
  }

  html.motion-ready.motion-loaded .hero > .hero-copy {
    transition-delay: 150ms;
  }

  html.motion-ready.motion-loaded .hero > .hero-actions {
    transition-delay: 220ms;
  }

  html.motion-ready.motion-loaded .hero > .unofficial-note {
    transition-delay: 280ms;
  }

  html.motion-ready.motion-loaded .hero .signal-grid article:nth-child(1) {
    transition-delay: 340ms;
  }

  html.motion-ready.motion-loaded .hero .signal-grid article:nth-child(2) {
    transition-delay: 410ms;
  }

  html.motion-ready.motion-loaded .hero .signal-grid article:nth-child(3) {
    transition-delay: 480ms;
  }

  html.motion-ready [data-motion-reveal] {
    opacity: 0;
    transform: translate3d(0, 2rem, 0) scale(0.985);
    transition: opacity 800ms var(--ease-out-expo) var(--reveal-delay, 0ms), transform 800ms var(--ease-out-expo) var(--reveal-delay, 0ms);
    will-change: opacity, transform;
  }

  html.motion-ready [data-motion-reveal].is-revealed {
    opacity: 1;
    transform: translate3d(0, var(--surface-lift, 0px), 0) scale(1);
    will-change: auto;
  }
}

@media (max-width: 900px) {
  nav a:not(.nav-github) {
    display: none;
  }

  .section-heading,
  .safety-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .terminal-body {
    grid-template-columns: 1fr;
  }

  .terminal-input-pane {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .flow {
    grid-template-columns: 1fr;
    max-width: 28rem;
    margin-inline: auto;
  }

  .flow-arrow {
    padding: 0.25rem;
    transform: rotate(90deg);
    text-align: center;
  }

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

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

@media (max-width: 620px) {
  .site-header {
    min-height: 4.2rem;
  }

  .hero,
  .section,
  footer {
    width: min(100% - 2rem, var(--max));
  }

  .hero {
    min-height: auto;
    padding-top: 4rem;
  }

  h1 {
    font-size: clamp(3.1rem, 18vw, 5rem);
  }

  .pairing-row {
    grid-template-columns: 1fr;
  }

  .signal-grid {
    grid-template-columns: 1fr;
    margin-top: 5rem;
  }

  .signal-grid article,
  .signal-grid article + article {
    padding: 1.2rem 0;
    border-right: 0;
    border-bottom: 1px solid var(--line-soft);
  }

  .section-heading {
    grid-template-columns: 1fr;
  }

  .command-box {
    align-items: stretch;
    flex-direction: column;
  }

  .command-box code {
    padding-bottom: 0.25rem;
  }

  .platform-row span {
    border-right: 0;
    border-bottom: 1px solid var(--line-soft);
  }

  .connection-state {
    justify-self: start;
  }

  .terminal-bar {
    grid-template-columns: 1fr auto;
  }

  .terminal-bar > span {
    display: none;
  }

  .terminal-controls {
    grid-template-columns: auto 1fr;
  }

  .terminal-controls .button {
    grid-column: 1 / -1;
  }

  .guard-list li {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

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

  .command-grid article {
    min-height: auto;
  }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html.motion-ready [data-motion-reveal],
  html.motion-ready .hero > *,
  html.motion-paused [data-motion-reveal],
  html.motion-paused .hero > * {
    opacity: 1 !important;
    transform: none !important;
  }

  .hero-glow,
  .terminal-shell:hover,
  .terminal-shell:focus-within,
  .flow-step:hover,
  .signal-grid article:hover,
  .principles-grid article:hover,
  .command-grid article:hover,
  .bridge-help:hover,
  .button:hover,
  .button:active,
  .brand:hover .brand-mark {
    transform: none !important;
  }
}