:root {
  --arios-black: #0a0a0a;
  --arios-dark: #1f1f1f;
  --arios-panel: #151515;
  --arios-muted: #cfcfcf;
  --arios-light: #f5f5f5;
  --arios-primary: #128c7e;
  --arios-primary-dark: #0f7267;
  --arios-border: #303030;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--arios-black);
  color: var(--arios-light);
  line-height: 1.5;
}

a {
  color: inherit;
}

.manual-shell {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 44px;
}

.manual-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 34px;
}

.manual-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.manual-logo {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--arios-primary), var(--arios-primary-dark));
  color: #ffffff;
  font-size: 22px;
  font-weight: 800;
}

.manual-brand-title {
  display: block;
  color: #ffffff;
  font-size: 22px;
  font-weight: 800;
}

.manual-brand-subtitle {
  display: block;
  color: var(--arios-muted);
  font-size: 14px;
}

.manual-pill {
  color: var(--arios-muted);
  font-size: 14px;
  text-decoration: none;
}

.manual-pill:hover,
.back-link:hover {
  color: #8df5e9;
}

.manual-hero {
  margin-bottom: 34px;
}

.manual-kicker {
  display: block;
  margin-bottom: 8px;
  color: #8df5e9;
  font-size: 14px;
  font-weight: 700;
}

.manual-hero h1 {
  margin: 0 0 8px;
  color: #ffffff;
  font-size: 38px;
  line-height: 1.12;
  letter-spacing: 0;
}

.manual-hero p {
  max-width: 560px;
  margin: 0;
  color: var(--arios-muted);
  font-size: 18px;
}

.manual-section {
  margin-top: 30px;
}

.manual-section-header {
  margin-bottom: 10px;
}

.manual-section-header h2 {
  margin: 0;
  color: #ffffff;
  font-size: 20px;
}

.manual-list {
  display: grid;
  border-top: 1px solid var(--arios-border);
}

.manual-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  min-height: 78px;
  padding: 16px 0;
  border-bottom: 1px solid var(--arios-border);
  text-decoration: none;
}

.manual-card:hover h3 {
  color: #8df5e9;
}

.manual-card.is-disabled {
  opacity: 0.48;
  pointer-events: none;
}

.manual-card h3 {
  margin: 0 0 3px;
  color: #ffffff;
  font-size: 18px;
  line-height: 1.25;
  transition: color 0.18s ease;
}

.manual-card p {
  margin: 0;
  color: var(--arios-muted);
  font-size: 15px;
}

.manual-status {
  border: 1px solid rgba(18, 140, 126, 0.35);
  border-radius: 999px;
  color: #dbfffb;
  background: rgba(18, 140, 126, 0.12);
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.is-disabled .manual-status {
  border-color: rgba(91, 91, 91, 0.45);
  color: #d1d1d1;
  background: rgba(91, 91, 91, 0.16);
}

.manual-footer {
  margin-top: 40px;
  padding-top: 18px;
  border-top: 1px solid var(--arios-border);
  color: var(--arios-muted);
  font-size: 14px;
}

.article {
  max-width: 760px;
}

.article.wide {
  max-width: 1040px;
}

.back-link {
  display: inline-block;
  margin-bottom: 22px;
  color: var(--arios-muted);
  font-size: 14px;
  text-decoration: none;
}

.article-hero {
  margin-bottom: 28px;
}

.article-hero h1 {
  margin: 0 0 10px;
  color: #ffffff;
  font-size: 38px;
  line-height: 1.12;
  letter-spacing: 0;
}

.article-hero p {
  max-width: 680px;
  margin: 0;
  color: var(--arios-muted);
  font-size: 18px;
}

.article-card,
.article-note {
  border-top: 1px solid var(--arios-border);
  padding: 20px 0;
}

.article-card h2,
.article-note h2,
.article-step h2 {
  margin: 0 0 10px;
  color: #ffffff;
  font-size: 21px;
}

.article-card p,
.article-note p,
.article-step p {
  margin: 0;
  color: var(--arios-muted);
  font-size: 16px;
}

.article-note {
  border-left: 4px solid var(--arios-primary);
  border-top: 0;
  padding: 16px 0 16px 18px;
  margin: 0 0 24px;
}

.article-steps {
  display: grid;
  gap: 22px;
}

.article-step {
  display: grid;
  grid-template-columns: 42px minmax(210px, 0.9fr) minmax(320px, 1.1fr);
  gap: 18px;
  align-items: start;
  padding-top: 22px;
  border-top: 1px solid var(--arios-border);
}

.step-number,
.compact-step span {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: var(--arios-primary);
  color: #ffffff;
  font-weight: 800;
}

.step-media {
  margin: 0;
  padding: 8px;
  border: 1px solid var(--arios-border);
  border-radius: 8px;
  background: #ffffff;
}

.step-media img {
  display: block;
  width: 100%;
  border-radius: 6px;
}

.step-placeholder {
  min-height: 220px;
  margin: 0;
  border: 1px dashed rgba(207, 207, 207, 0.45);
  border-radius: 8px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 8px;
  background: rgba(31, 31, 31, 0.6);
  color: var(--arios-muted);
}

.step-placeholder span {
  color: #8df5e9;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

.step-placeholder strong {
  color: #ffffff;
  font-size: 17px;
}

.checklist {
  display: grid;
  gap: 9px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.checklist li {
  color: var(--arios-muted);
  font-size: 16px;
}

.checklist li::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 9px;
  border-radius: 999px;
  background: var(--arios-primary);
  vertical-align: 2px;
}

.article-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.article-media {
  margin: 18px 0 0;
  padding: 8px;
  border: 1px solid var(--arios-border);
  border-radius: 8px;
  background: #ffffff;
}

.article-media img {
  display: block;
  width: 100%;
  border-radius: 6px;
}

.action-button {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  border-radius: 8px;
  padding: 0 14px;
  background: var(--arios-primary);
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.action-button.secondary {
  background: var(--arios-dark);
  border: 1px solid var(--arios-border);
}

.compact-steps {
  display: grid;
  gap: 14px;
  margin-top: 16px;
}

.compact-step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 13px;
}

.compact-step h3 {
  margin: 0 0 3px;
  color: #ffffff;
  font-size: 17px;
}

@media (max-width: 640px) {
  .manual-shell {
    width: min(100% - 24px, 920px);
    padding-top: 18px;
  }

  .manual-topbar {
    align-items: flex-start;
    flex-direction: column;
    margin-bottom: 28px;
  }

  .manual-hero h1 {
    font-size: 32px;
  }

  .manual-card {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .manual-status {
    width: fit-content;
  }

  .article-hero h1 {
    font-size: 31px;
  }

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

  .step-media {
    grid-column: 1 / -1;
  }

  .step-placeholder {
    grid-column: 1 / -1;
  }
}