:root {
  --ink-950: #050834;
  --ink-900: #0b0f52;
  --ink-800: #16207f;
  --ink-700: #2835a8;
  --accent-600: #f54f66;
  --accent-500: #ff6478;
  --paper-100: #f8f9ff;
  --paper-200: #ebefff;
  --text-900: #111742;
  --text-700: #454d7c;
  --line-200: #dbe1fb;
  --line-300: #c6cef3;
  --shadow-soft: 0 14px 36px rgba(14, 19, 70, 0.08);
  --shadow-card: 0 22px 52px rgba(8, 13, 57, 0.12);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --container: min(1120px, calc(100% - 2.6rem));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--text-900);
  background:
    radial-gradient(1200px 700px at 5% 0%, #e4e9ff 0%, rgba(228, 233, 255, 0) 64%),
    radial-gradient(900px 560px at 95% 8%, #ffecef 0%, rgba(255, 236, 239, 0) 58%),
    linear-gradient(180deg, #feffff 0%, #f6f8ff 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(18, 24, 78, 0.05) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.32;
  z-index: -2;
}

.bg-orb {
  position: fixed;
  border-radius: 999px;
  filter: blur(30px);
  pointer-events: none;
  z-index: -1;
}

.bg-orb-a {
  width: 320px;
  height: 320px;
  background: rgba(40, 53, 168, 0.12);
  top: -80px;
  right: 8%;
  animation: floatA 18s ease-in-out infinite;
}

.bg-orb-b {
  width: 260px;
  height: 260px;
  background: rgba(245, 79, 102, 0.14);
  left: -70px;
  bottom: 12%;
  animation: floatB 22s ease-in-out infinite;
}

.site-header {
  width: var(--container);
  margin: 0 auto;
  padding: 1.15rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(9px);
}

.brand {
  display: inline-flex;
  gap: 0.74rem;
  align-items: center;
  text-decoration: none;
  color: var(--ink-900);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.18rem;
  flex-shrink: 0;
}

.brand img {
  border-radius: 12px;
  box-shadow: 0 8px 18px rgba(21, 31, 111, 0.2);
}

.site-nav {
  display: flex;
  gap: 0.9rem;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a {
  text-decoration: none;
  color: var(--text-700);
  font-weight: 500;
  transition: color 0.2s ease;
}

.site-nav a:hover {
  color: var(--ink-800);
}

.github-stars {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  padding: 0.35rem 0.4rem 0.35rem 0.62rem;
  border-radius: 999px;
  border: 1px solid var(--line-300);
  background: rgba(255, 255, 255, 0.88);
  color: var(--ink-800);
  font-size: 0.88rem;
  box-shadow: 0 6px 16px rgba(14, 19, 70, 0.07);
}

.github-stars:hover {
  border-color: var(--ink-700);
}

.github-icon {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.github-label {
  font-weight: 600;
}

.stars-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: linear-gradient(135deg, #fff, #f2f5ff);
  border: 1px solid var(--line-300);
  border-radius: 999px;
  padding: 0.15rem 0.42rem;
}

.star-icon {
  width: 12px;
  height: 12px;
  fill: var(--accent-600);
}

.github-stars strong {
  font-variant-numeric: tabular-nums;
  color: var(--ink-900);
  font-size: 0.84rem;
  line-height: 1;
}

.section {
  width: var(--container);
  margin: 0 auto;
  padding: 4.2rem 0;
}

.hero {
  padding-top: 3.3rem;
  display: grid;
  grid-template-columns: 1.06fr 0.94fr;
  gap: 1.3rem;
  align-items: stretch;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-700);
  font-size: 0.78rem;
  font-weight: 600;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-family: "Space Grotesk", sans-serif;
}

h1 {
  margin-top: 0.82rem;
  font-size: clamp(2.1rem, 4.8vw, 3.7rem);
  max-width: 14ch;
}

h2 {
  font-size: clamp(1.56rem, 3vw, 2.45rem);
}

h3 {
  font-size: 1.24rem;
}

.subhead {
  margin: 1.08rem 0 0;
  font-size: clamp(1rem, 2vw, 1.14rem);
  line-height: 1.78;
  color: var(--text-700);
  max-width: 56ch;
}

.hero-actions {
  margin-top: 1.45rem;
  display: flex;
  gap: 0.82rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.76rem 1.12rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-small {
  padding: 0.5rem 0.8rem;
  font-size: 0.87rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--ink-800), var(--accent-600));
  color: #fff;
  box-shadow: 0 12px 30px rgba(31, 46, 168, 0.28);
}

.btn-primary:hover {
  box-shadow: 0 16px 35px rgba(245, 79, 102, 0.24);
}

.btn-ghost {
  color: var(--ink-800);
  border: 1px solid var(--line-300);
  background: rgba(255, 255, 255, 0.82);
}

.meta-list {
  margin: 1.3rem 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.meta-list li {
  padding: 0.34rem 0.68rem;
  border: 1px solid var(--line-300);
  border-radius: 999px;
  color: var(--text-700);
  font-size: 0.86rem;
  background: rgba(255, 255, 255, 0.86);
}

.release-card {
  border-radius: var(--radius-lg);
  padding: 1.3rem;
  border: 1px solid var(--line-300);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.98), rgba(239, 243, 255, 0.9));
  box-shadow: var(--shadow-card);
}

.card-label {
  margin: 0;
  color: var(--text-700);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.76rem;
  font-weight: 600;
}

.release-version {
  margin: 0.5rem 0 0;
  font-size: 2.05rem;
  color: var(--ink-900);
  font-weight: 700;
}

.release-title {
  margin: 0.35rem 0 0;
  color: var(--text-700);
  line-height: 1.45;
}

.release-grid {
  margin-top: 0.9rem;
  display: grid;
  gap: 0.48rem;
}

.release-row {
  margin: 0;
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
  color: var(--text-700);
  font-size: 0.92rem;
}

.release-row span:first-child {
  color: var(--text-900);
  font-weight: 600;
}

.card-subtitle {
  margin: 1rem 0 0.46rem;
  color: var(--ink-800);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

.release-highlights {
  margin: 0;
  padding-left: 1rem;
  display: grid;
  gap: 0.42rem;
  color: var(--text-700);
  line-height: 1.58;
  font-size: 0.9rem;
}

.release-links {
  margin-top: 0.94rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.6rem;
}

.inline-link {
  display: inline-flex;
  color: var(--ink-800);
  text-decoration: none;
  font-weight: 600;
  line-height: 1.4;
}

.inline-link:hover {
  text-decoration: underline;
}

.release-status {
  margin-top: 0.82rem;
  color: var(--text-700);
  font-size: 0.83rem;
}

.section-head {
  display: grid;
  gap: 0.65rem;
}

.grid-3 {
  margin-top: 1.4rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.92rem;
}

.feature-card {
  border-radius: var(--radius-md);
  border: 1px solid var(--line-300);
  background: rgba(255, 255, 255, 0.84);
  padding: 1.18rem;
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 40px rgba(14, 19, 70, 0.12);
}

.feature-card p {
  margin: 0.6rem 0 0;
  color: var(--text-700);
  line-height: 1.74;
}

.install-layout {
  margin-top: 1.3rem;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 0.95rem;
}

.panel {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-300);
  background: rgba(255, 255, 255, 0.86);
  padding: 1.35rem;
  box-shadow: var(--shadow-soft);
}

.steps {
  margin: 0.9rem 0 0;
  padding-left: 1.06rem;
  color: var(--text-700);
  line-height: 1.84;
}

.steps li code {
  font-size: 0.93em;
}

.command-box {
  margin-top: 0.95rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(13, 21, 78, 0.2);
  background: #f4f7ff;
  padding: 0.8rem;
}

.command-label {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-700);
}

.command-row {
  margin-top: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.command-row code {
  flex: 1;
  display: block;
  color: var(--ink-900);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.93rem;
  word-break: break-all;
}

.copy-btn {
  border: 1px solid var(--line-300);
  background: #ffffff;
  border-radius: 10px;
  color: var(--ink-800);
  padding: 0.42rem 0.52rem;
  display: inline-flex;
  align-items: center;
  gap: 0.32rem;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

.copy-btn svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.copy-btn:hover {
  border-color: var(--ink-700);
}

.copy-btn.copied {
  border-color: #2f8f63;
  color: #2f8f63;
}

.copy-status {
  margin: 0.38rem 0 0;
  min-height: 1.1em;
  color: #2f8f63;
  font-size: 0.8rem;
}

.micro-note {
  margin: 0.9rem 0 0;
  color: var(--text-700);
  line-height: 1.65;
  font-size: 0.91rem;
}

.system-list {
  margin: 0.86rem 0 0;
  padding-left: 1.05rem;
  display: grid;
  gap: 0.58rem;
  line-height: 1.62;
  color: var(--text-700);
}

.system-list code {
  color: var(--ink-800);
  font-size: 0.9em;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: rgba(14, 20, 63, 0.07);
  border: 1px solid rgba(14, 20, 63, 0.1);
  border-radius: 6px;
  padding: 0.1rem 0.32rem;
}

.faq-list {
  margin-top: 1.22rem;
  display: grid;
  gap: 0.74rem;
}

.faq-item {
  border: 1px solid var(--line-300);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.84);
  padding: 0.9rem 1rem;
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-family: "Space Grotesk", sans-serif;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item p {
  margin: 0.66rem 0 0;
  color: var(--text-700);
  line-height: 1.7;
}

.cta {
  text-align: center;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-300);
  background: linear-gradient(180deg, #ffffff, #f2f5ff);
}

.cta h2 {
  max-width: 16ch;
  margin: 0 auto 1.2rem;
}

.site-footer {
  width: var(--container);
  margin: 0 auto;
  padding: 1.9rem 0 3.2rem;
  color: var(--text-700);
  display: flex;
  justify-content: space-between;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--ink-800);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  animation: revealIn 0.58s ease forwards;
}

.hero .reveal:nth-child(2) {
  animation-delay: 0.12s;
}

.grid-3 .reveal:nth-child(2),
.faq-list .reveal:nth-child(2) {
  animation-delay: 0.08s;
}

.grid-3 .reveal:nth-child(3),
.faq-list .reveal:nth-child(3) {
  animation-delay: 0.16s;
}

@keyframes revealIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes floatA {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(-10px, 14px, 0);
  }
}

@keyframes floatB {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(14px, -10px, 0);
  }
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .install-layout,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .site-header {
    position: static;
    padding-top: 1.2rem;
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav {
    width: 100%;
    justify-content: flex-start;
    gap: 0.74rem;
    font-size: 0.95rem;
  }
}

@media (max-width: 640px) {
  :root {
    --container: min(1120px, calc(100% - 1.3rem));
  }

  .section {
    padding: 2.8rem 0;
  }

  .hero {
    padding-top: 2.3rem;
  }

  h1 {
    font-size: 2.02rem;
  }

  .release-version {
    font-size: 1.76rem;
  }

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

  .copy-btn {
    justify-content: center;
  }

  .site-footer {
    padding-bottom: 2.3rem;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}