/* LUCY — REX Technologies. The ink/signal palette shared across REX products; dark by design. */

:root {
  --ink: #080a09;
  --panel: #111512;
  --raised: #181e19;
  --line: #29302a;
  --text: #f2f5ee;
  --muted: #858d83;
  --signal: #d7ff3f;
  --live: #ff774d;
  --signal-wash: rgba(215, 255, 63, 0.1);
  --radius-s: 8px;
  --radius-m: 12px;
  --radius-l: 18px;
  --gutter: clamp(16px, 4vw, 32px);
  --page: 1120px;
  --section: clamp(56px, 8vw, 96px);
  --font: Inter, "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Mono", "SF Mono", Consolas, ui-monospace, Menlo, monospace;
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  background: var(--ink);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}
body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a {
  color: var(--signal);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
button {
  font: inherit;
}
svg {
  display: block;
}
code,
kbd,
pre {
  font-family: var(--mono);
}
:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: min(var(--page), 100% - 2 * var(--gutter));
  margin-inline: auto;
}
.section {
  padding: var(--section) 0;
  border-top: 1px solid var(--line);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  background: var(--signal);
  color: var(--ink);
  padding: 10px 14px;
  border-radius: var(--radius-s);
  font-weight: 700;
  z-index: 100;
}
.skip-link:focus {
  top: 12px;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.01em;
}
h1,
h2 {
  text-wrap: balance;
}
h1 {
  font-size: clamp(40px, 6.4vw, 78px);
  letter-spacing: -0.035em;
  font-weight: 900;
}
h1 span {
  color: var(--signal);
}
h2 {
  font-size: clamp(28px, 4.2vw, 46px);
}
h3 {
  font-size: 19px;
}
p {
  margin: 0;
}
strong {
  font-weight: 700;
  color: var(--text);
}
code {
  color: var(--text);
  background: var(--raised);
  padding: 1px 6px;
  border-radius: 5px;
  font-size: 14px;
}
pre code {
  padding: 0;
  background: none;
}

.eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 9px;
}
.eyebrow.signal {
  color: var(--signal);
}

.ambient {
  position: fixed;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  opacity: 0.14;
  z-index: -2;
}
.ambient-one {
  width: 520px;
  height: 520px;
  background: var(--signal);
  top: 90px;
  right: -230px;
}
.ambient-two {
  width: 420px;
  height: 420px;
  background: var(--live);
  top: 620px;
  left: -250px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(8, 10, 9, 0.86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap {
  min-height: 64px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  min-height: 44px;
}
.brand:hover {
  text-decoration: none;
}
.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  background: var(--raised);
  border: 1px solid var(--line);
}
.brand-mark svg {
  width: 23px;
  fill: none;
  stroke: var(--signal);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.brand-lockup {
  display: flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1.08;
}
.brand-company {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
}
.brand-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}
.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 4px;
}
.site-nav a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  padding: 10px 12px;
  border-radius: var(--radius-s);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.site-nav a:hover {
  color: var(--text);
  text-decoration: none;
  background: var(--raised);
}
.nav-github {
  color: var(--ink) !important;
  background: var(--signal) !important;
  margin-left: 6px;
  padding-inline: 16px !important;
}
.nav-github:hover {
  opacity: 0.9;
}
.menu-button {
  margin-left: auto;
  display: none;
  min-width: 44px;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  background: transparent;
  color: var(--text);
  cursor: pointer;
}
.menu-button span:not(.sr-only) {
  display: block;
  width: 16px;
  height: 2px;
  background: currentColor;
  margin: 5px auto;
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  padding: clamp(48px, 7vw, 96px) 0 clamp(40px, 6vw, 72px);
}
.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.hero-lede {
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--muted);
  max-width: 56ch;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}
.hero-meta span::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal);
  margin-right: 8px;
  vertical-align: middle;
}
.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 20px;
  border-radius: var(--radius-m);
  font-weight: 700;
  border: 1px solid transparent;
}
.button:hover {
  text-decoration: none;
}
.button-primary {
  background: var(--signal);
  color: var(--ink);
}
.button-primary:hover {
  filter: brightness(1.05);
}
.button-secondary {
  background: var(--raised);
  color: var(--text);
  border-color: var(--line);
}
.button-secondary:hover {
  border-color: var(--muted);
}

/* A window showing a conversation or a plan */
.console {
  margin: 0;
  padding: 22px;
  border-radius: var(--radius-l);
  background: var(--panel);
  border: 1px solid var(--line);
  overflow: auto;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}
.console .you {
  color: var(--muted);
}
.console .k {
  color: var(--signal);
}
.console .s {
  color: var(--live);
}

/* Trust strip */
.trust-strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 18px 0;
}
.trust-grid div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.trust-grid strong {
  font-size: 14px;
}
.trust-grid span {
  font-size: 13px;
  color: var(--muted);
}

/* Sections */
.section-heading {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 72ch;
  margin-bottom: clamp(28px, 4vw, 44px);
}
.section-heading p {
  color: var(--muted);
  font-size: 17px;
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.step {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.step p {
  color: var(--muted);
}
.step-number {
  font-family: var(--mono);
  color: var(--signal);
  font-weight: 700;
  font-size: 13px;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.feature-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.feature-card p {
  color: var(--muted);
}
.feature-card.link:hover {
  border-color: var(--muted);
  text-decoration: none;
}
.feature-card .meta {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--signal);
}

/* Install */
.install-steps {
  margin: 0;
  padding-left: 0;
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 14px;
  max-width: 80ch;
}
.install-steps li {
  counter-increment: step;
  position: relative;
  padding-left: 48px;
  color: var(--muted);
}
.install-steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--mono);
  font-weight: 700;
  color: var(--signal);
}
.install-steps a {
  text-decoration: underline;
  text-underline-offset: 3px;
}
.command-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
}
.command-row code {
  padding: 10px 14px;
  border-radius: var(--radius-s);
  border: 1px solid var(--line);
  background: var(--panel);
  font-size: 13px;
  overflow: auto;
  max-width: 100%;
}
.copy-button {
  min-height: 40px;
  padding: 0 14px;
  border-radius: var(--radius-s);
  border: 1px solid var(--line);
  background: var(--raised);
  color: var(--text);
  font-weight: 700;
  cursor: pointer;
}
.copy-button:hover {
  border-color: var(--muted);
}
.install-note {
  margin-top: 22px;
  color: var(--muted);
  max-width: 80ch;
}

/* FAQ */
.faq {
  display: grid;
  gap: 10px;
  max-width: 80ch;
}
.faq details {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 0 20px;
}
.faq summary {
  cursor: pointer;
  padding: 16px 0;
  font-weight: 700;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary::after {
  content: "+";
  color: var(--signal);
  font-weight: 700;
  font-size: 20px;
  line-height: 1;
}
.faq details[open] summary::after {
  content: "−";
}
.faq p {
  padding: 0 0 18px;
  color: var(--muted);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  color: var(--muted);
  font-size: 14px;
}
.footer-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
}
.site-footer a {
  text-decoration: underline;
  text-underline-offset: 3px;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

/* 404 */
.not-found {
  padding: clamp(72px, 14vh, 140px) 0;
  max-width: 720px;
}
.not-found h1 {
  margin: 14px 0 0;
  font-size: clamp(34px, 5.6vw, 60px);
}
.not-found .hero-lede {
  margin-top: 16px;
}
.not-found .hero-actions {
  margin-top: 28px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}

/* Responsive */
@media (max-width: 1000px) {
  .hero {
    grid-template-columns: 1fr;
  }
  .steps,
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 760px) {
  .menu-button {
    display: block;
  }
  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: 10px var(--gutter) 16px;
    background: var(--ink);
    border-bottom: 1px solid var(--line);
  }
  .site-nav.open {
    display: flex;
  }
  .site-nav a {
    min-height: 46px;
  }
  .nav-github {
    margin-left: 0;
    justify-content: center;
  }
  .brand-name {
    font-size: 14px;
  }
  .steps,
  .feature-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 420px) {
  .trust-grid {
    grid-template-columns: 1fr;
  }
}