:root {
  color-scheme: dark;
  --bg: #0d0f14;
  --panel: rgba(22, 24, 33, 0.88);
  --panel-strong: rgba(31, 34, 45, 0.96);
  --border: rgba(255, 255, 255, 0.12);
  --text: #f6f7fb;
  --muted: #b8bfce;
  --soft: #7e8798;
  --cyan: #28e4d4;
  --pink: #ff2c9a;
  --gold: #ffd335;
  --green: #54e37f;
  --violet: #b65dff;
  --blue: #3ea5ff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    linear-gradient(180deg, rgba(18, 20, 30, 0.92), var(--bg) 520px),
    radial-gradient(circle at 18% 22%, rgba(255, 44, 154, 0.18), transparent 26%),
    radial-gradient(circle at 78% 12%, rgba(40, 228, 212, 0.16), transparent 24%),
    var(--bg);
  color: var(--text);
  line-height: 1.55;
}

a {
  color: inherit;
}

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

code,
kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

kbd {
  display: inline-block;
  padding: 0.12rem 0.38rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-bottom-color: rgba(255, 255, 255, 0.28);
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.08);
  color: #eef2ff;
  font-size: 0.82em;
  line-height: 1.2;
}

code {
  padding: 0.12rem 0.36rem;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.08);
  color: #dffbf8;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 16px;
  z-index: 20;
  transform: translateY(-140%);
  padding: 0.7rem 1rem;
  border-radius: 8px;
  background: var(--text);
  color: #11131a;
  text-decoration: none;
  font-weight: 700;
}

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

.hero {
  position: relative;
  min-height: 580px;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 82%);
}

.hero-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.line {
  position: absolute;
  left: -10vw;
  width: 120vw;
  height: 10px;
  border-radius: 999px;
  filter: drop-shadow(0 0 16px currentColor);
  opacity: 0.9;
  transform-origin: center;
}

.line-cyan {
  top: 84px;
  color: var(--cyan);
  background: linear-gradient(90deg, transparent, currentColor 22%, #f8ffff 82%, transparent);
  transform: rotate(-2.5deg);
}

.line-pink {
  top: 235px;
  color: var(--pink);
  background: linear-gradient(90deg, transparent, currentColor 18%, var(--violet) 78%, transparent);
  transform: rotate(3deg);
}

.line-gold {
  top: 386px;
  color: var(--gold);
  background: linear-gradient(90deg, transparent, currentColor 20%, #ff596d 84%, transparent);
  transform: rotate(-4deg);
}

.line-indigo {
  bottom: 78px;
  color: #6ca7ff;
  background: linear-gradient(90deg, transparent, currentColor 22%, var(--cyan) 86%, transparent);
  transform: rotate(2.5deg);
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 120px 0 96px;
}

.brand-lockup {
  width: min(420px, 78vw);
  margin-bottom: 52px;
  filter: drop-shadow(0 18px 44px rgba(0, 0, 0, 0.5));
}

.eyebrow,
.kicker {
  margin: 0 0 0.65rem;
  color: var(--cyan);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1 {
  width: min(900px, 100%);
  margin-bottom: 1rem;
  font-size: clamp(2.4rem, 5vw, 5.6rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-copy {
  width: min(740px, 100%);
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.72rem 1.05rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
}

.button.primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--pink), var(--gold) 55%, var(--green));
  color: #11131a;
}

.layout {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
  gap: 32px;
  width: min(1260px, calc(100% - 40px));
  margin: 0 auto;
  padding: 36px 0 72px;
}

.toc {
  position: sticky;
  top: 18px;
  align-self: start;
  max-height: calc(100vh - 36px);
  overflow: auto;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(15, 17, 24, 0.82);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.toc-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 8px 14px;
  border-bottom: 1px solid var(--border);
}

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

.toc-card span {
  color: var(--muted);
  font-size: 0.86rem;
}

.toc-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
}

.search-label {
  display: block;
  margin: 16px 6px 8px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.search {
  width: 100%;
  min-height: 42px;
  margin-bottom: 14px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  outline: none;
}

.search:focus {
  border-color: rgba(40, 228, 212, 0.62);
  box-shadow: 0 0 0 3px rgba(40, 228, 212, 0.14);
}

.toc nav {
  display: grid;
  gap: 4px;
}

.toc nav a {
  padding: 0.72rem 0.75rem;
  border-radius: 7px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 700;
}

.toc nav a:hover,
.toc nav a.active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.content {
  min-width: 0;
}

.guide-section {
  scroll-margin-top: 24px;
  margin-top: 46px;
}

.guide-section:first-of-type {
  margin-top: 0;
}

.section-heading {
  max-width: 880px;
  margin-bottom: 18px;
}

.section-heading h2 {
  margin-bottom: 0.55rem;
  font-size: clamp(1.8rem, 3vw, 3rem);
  line-height: 1.04;
  letter-spacing: 0;
}

.section-heading p:not(.kicker),
.guide-card p,
.plan-card p {
  color: var(--muted);
}

.intro-panel {
  font-size: 1.1rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

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

.guide-card,
.plan-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: linear-gradient(180deg, var(--panel-strong), var(--panel));
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.22);
}

.guide-card {
  padding: 22px;
}

.guide-card h3 {
  margin-bottom: 0.65rem;
  font-size: 1.08rem;
}

.guide-card ul {
  display: grid;
  gap: 0.62rem;
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.guide-card li::marker {
  color: var(--cyan);
}

.pipeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.pipeline div {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.pipeline span {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  margin-bottom: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #071015;
  font-weight: 900;
}

.pipeline strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 1rem;
}

.pipeline p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.plans {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}

.plan-card {
  padding: 18px;
}

.plan-card span {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--muted);
  font-weight: 800;
}

.plan-card strong {
  display: block;
  margin-bottom: 0.8rem;
  font-size: 1.5rem;
}

.plan-card.featured {
  border-color: rgba(255, 211, 53, 0.46);
  background:
    linear-gradient(180deg, rgba(255, 211, 53, 0.15), transparent 42%),
    linear-gradient(180deg, var(--panel-strong), var(--panel));
}

dl {
  display: grid;
  gap: 0.45rem 1rem;
  grid-template-columns: minmax(120px, 0.38fr) minmax(0, 1fr);
  margin: 0;
}

dt {
  color: var(--text);
  font-weight: 800;
}

dd {
  margin: 0;
  color: var(--muted);
}

.hidden-by-search {
  display: none;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  width: min(1260px, calc(100% - 40px));
  margin: 0 auto;
  padding: 24px 0 44px;
  border-top: 1px solid var(--border);
  color: var(--muted);
}

.site-footer p {
  margin: 0;
}

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

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

  .toc {
    position: relative;
    top: auto;
    max-height: none;
  }

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

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

@media (max-width: 720px) {
  .hero {
    min-height: 520px;
  }

  .hero-inner {
    padding: 84px 0 72px;
  }

  .brand-lockup {
    margin-bottom: 40px;
  }

  .layout,
  .site-footer,
  .hero-inner {
    width: min(100% - 28px, 1120px);
  }

  .card-grid,
  .card-grid.two,
  .pipeline,
  .plans,
  .toc nav {
    grid-template-columns: 1fr;
  }

  .site-footer {
    display: block;
  }

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