:root {
  --manual-ink: #0a1222;
  --manual-muted: #667085;
  --manual-accent: #2a64ff;
  --manual-accent-strong: #1a46f2;
  --manual-surface: #ffffff;
  --manual-surface-soft: #f5f7fb;
  --manual-border: #dfe4ec;
  --manual-sidebar-width: 320px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--manual-ink);
  background: var(--manual-surface-soft);
  font-family: "Archivo", "Helvetica Neue", Arial, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.manual-topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  padding: 0 4vw;
  border-bottom: 1px solid rgba(15, 23, 42, 0.1);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
}

.manual-brand img {
  display: block;
  width: 118px;
}

.manual-topbar nav {
  display: flex;
  gap: 1.4rem;
  font-weight: 600;
}

.manual-topbar nav a:hover,
.manual-topbar nav a[aria-current="page"] {
  color: var(--manual-accent);
}

.manual-layout {
  display: grid;
  grid-template-columns: var(--manual-sidebar-width) minmax(0, 1fr);
  min-height: calc(100vh - 72px);
}

.manual-sidebar {
  position: sticky;
  top: 72px;
  align-self: start;
  height: calc(100vh - 72px);
  overflow-y: auto;
  padding: 2rem 1.5rem 4rem;
  border-right: 1px solid var(--manual-border);
  background: #fff;
}

.manual-sidebar-title {
  display: block;
  margin-bottom: 1.75rem;
  font-family: "Sora", sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
}

.manual-nav-group + .manual-nav-group {
  margin-top: 1.6rem;
}

.manual-nav-group h2 {
  margin: 0 0 0.55rem;
  color: #344054;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.manual-nav-group ul {
  display: grid;
  gap: 0.2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.manual-nav-group a {
  display: block;
  padding: 0.55rem 0.7rem;
  border-radius: 9px;
  color: #475467;
  font-size: 0.91rem;
  line-height: 1.35;
}

.manual-nav-group a:hover,
.manual-nav-group a.is-active {
  color: var(--manual-accent-strong);
  background: #eef3ff;
}

.manual-main {
  min-width: 0;
  padding: 3rem clamp(1.4rem, 5vw, 5rem) 6rem;
}

.manual-article,
.manual-index-hero,
.manual-index-sections {
  width: min(100%, 1050px);
  margin: 0 auto;
}

.manual-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1.8rem;
  color: var(--manual-muted);
  font-size: 0.9rem;
}

.manual-breadcrumb a:hover {
  color: var(--manual-accent);
}

.manual-article-header {
  margin-bottom: 2.6rem;
  padding-bottom: 2.2rem;
  border-bottom: 1px solid var(--manual-border);
}

.manual-category-label {
  display: inline-flex;
  margin-bottom: 0.85rem;
  padding: 0.42rem 0.75rem;
  border-radius: 999px;
  color: var(--manual-accent-strong);
  background: #e9efff;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.manual-article h1,
.manual-index-hero h1 {
  margin: 0;
  font-family: "Sora", sans-serif;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.manual-article-header p,
.manual-index-hero > p {
  max-width: 800px;
  margin: 1.1rem 0 0;
  color: var(--manual-muted);
  font-size: 1.08rem;
  line-height: 1.7;
}

.manual-content {
  color: #344054;
  font-size: 1rem;
  line-height: 1.72;
}

.manual-content h2 {
  margin: 3.2rem 0 1rem;
  color: var(--manual-ink);
  font-family: "Sora", sans-serif;
  font-size: clamp(1.35rem, 2.2vw, 1.85rem);
  line-height: 1.25;
}

.manual-content h3 {
  margin: 2rem 0 0.7rem;
  color: var(--manual-ink);
  font-family: "Sora", sans-serif;
  font-size: 1.2rem;
}

.manual-content p,
.manual-content ul,
.manual-content ol {
  margin: 0.8rem 0 1.1rem;
}

.manual-content a {
  color: var(--manual-accent-strong);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.manual-step-heading {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
  margin: 3.4rem 0 1rem;
}

.manual-step-heading span {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 13px;
  color: #fff;
  background: linear-gradient(135deg, var(--manual-accent), var(--manual-accent-strong));
  font-family: "Sora", sans-serif;
  font-weight: 700;
  box-shadow: 0 12px 24px rgba(42, 100, 255, 0.22);
}

.manual-step-heading h2 {
  margin: 0;
}

.manual-figure {
  margin: 1.5rem 0 2.7rem !important;
}

.manual-content img {
  display: block;
  width: auto;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  border: 1px solid #d6dde8;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.12);
}

.manual-note {
  margin: 1.5rem 0;
  padding: 1rem 1.1rem;
  border-left: 4px solid var(--manual-accent);
  border-radius: 0 10px 10px 0;
  color: #344054;
  background: #eef3ff;
  line-height: 1.6;
}

.manual-table {
  display: table;
  width: 100%;
  margin: 1.3rem 0 2rem;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 12px;
  background: #fff;
}

.manual-table td,
.manual-table th {
  padding: 0.8rem;
  border: 1px solid var(--manual-border);
  vertical-align: middle;
}

.manual-menu-button {
  display: none;
}

.manual-index-hero {
  padding: 1rem 0 3rem;
}

.manual-search {
  display: grid;
  gap: 0.55rem;
  max-width: 700px;
  margin-top: 2rem;
  color: #344054;
  font-weight: 600;
}

.manual-search input {
  width: 100%;
  padding: 1rem 1.1rem;
  border: 1px solid #cfd6e1;
  border-radius: 13px;
  outline: none;
  background: #fff;
  font: inherit;
  box-shadow: 0 8px 28px rgba(15, 23, 42, 0.07);
}

.manual-search input:focus {
  border-color: var(--manual-accent);
  box-shadow: 0 0 0 4px rgba(42, 100, 255, 0.13);
}

.manual-index-category {
  padding: 2.5rem 0;
  border-top: 1px solid var(--manual-border);
}

.manual-index-category > header {
  max-width: 750px;
  margin-bottom: 1.4rem;
}

.manual-index-category > header span {
  color: var(--manual-accent-strong);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.manual-index-category h2 {
  margin: 0.35rem 0 0;
  font-family: "Sora", sans-serif;
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
}

.manual-index-category header p {
  margin: 0.65rem 0 0;
  color: var(--manual-muted);
  line-height: 1.6;
}

.manual-index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.manual-index-card a {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  padding: 1.35rem;
  border: 1px solid var(--manual-border);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.manual-index-card a:hover {
  transform: translateY(-3px);
  border-color: rgba(42, 100, 255, 0.45);
  box-shadow: 0 18px 38px rgba(15, 23, 42, 0.11);
}

.manual-index-card h3 {
  margin: 0;
  font-family: "Sora", sans-serif;
  font-size: 1.05rem;
}

.manual-index-card p {
  display: -webkit-box;
  margin: 0.75rem 0 1rem;
  overflow: hidden;
  color: var(--manual-muted);
  line-height: 1.55;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.manual-index-card a > span {
  margin-top: auto;
  color: var(--manual-accent-strong);
  font-weight: 700;
}

.manual-empty {
  padding: 2rem;
  text-align: center;
  color: var(--manual-muted);
}

@media (max-width: 980px) {
  .manual-menu-button {
    position: sticky;
    top: 72px;
    z-index: 20;
    display: block;
    width: 100%;
    padding: 0.8rem 1rem;
    border: 0;
    border-bottom: 1px solid var(--manual-border);
    color: var(--manual-accent-strong);
    background: #fff;
    font: inherit;
    font-weight: 700;
  }

  .manual-layout {
    display: block;
  }

  .manual-sidebar {
    position: fixed;
    z-index: 25;
    top: 120px;
    right: 0;
    bottom: 0;
    left: 0;
    display: none;
    height: auto;
    border-right: 0;
  }

  .manual-sidebar.is-open {
    display: block;
  }

  .manual-main {
    padding-top: 2rem;
  }
}

@media (max-width: 640px) {
  .manual-topbar {
    padding: 0 1rem;
  }

  .manual-topbar nav {
    gap: 0.9rem;
  }

  .manual-main {
    padding-right: 1rem;
    padding-left: 1rem;
  }

  .manual-step-heading {
    grid-template-columns: 38px minmax(0, 1fr);
  }

  .manual-step-heading span {
    width: 38px;
    height: 38px;
  }

  .manual-table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
  }
}