/**
 * Nebo CTF Documentation Portal
 * Constellation-inspired dark-first docs shell.
 */

:root,
html[data-docs-theme="dark"] {
  --nebo-docs-bg: #050508;
  --nebo-docs-shell-bg: #0a0a0c;
  --nebo-docs-surface: #111114;
  --nebo-docs-surface-raised: #16161a;
  --nebo-docs-border: rgba(255, 255, 255, 0.08);
  --nebo-docs-border-strong: rgba(255, 255, 255, 0.14);
  --nebo-docs-text: #cbd5e1;
  --nebo-docs-muted: #64748b;
  --nebo-docs-heading: #f8fafc;
  --nebo-docs-accent: var(--token-brand-primary);
  --nebo-docs-accent-soft: var(--token-brand-primary-muted);
  --nebo-docs-link: #93c5fd;
  --nebo-docs-sidebar-width: 248px;
  --nebo-docs-toc-width: 208px;
  --nebo-docs-content-max: 720px;
  --nebo-docs-header-height: 64px;
  --nebo-docs-radius: 16px;
  --nebo-docs-radius-sm: 10px;
  --nebo-docs-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --nebo-docs-glow-a: rgba(99, 102, 241, 0.14);
  --nebo-docs-glow-b: rgba(139, 92, 246, 0.1);
  --nebo-docs-input-bg: rgba(255, 255, 255, 0.04);
  --nebo-docs-code-inline: rgba(255, 255, 255, 0.08);
  --nebo-docs-alert-info-bg: rgba(59, 130, 246, 0.12);
  --nebo-docs-alert-info-text: #93c5fd;
  --nebo-docs-alert-warning-bg: rgba(16, 185, 129, 0.12);
  --nebo-docs-alert-warning-text: var(--token-brand-primary-light);
  --nebo-docs-alert-success-bg: rgba(16, 185, 129, 0.12);
  --nebo-docs-alert-success-text: #6ee7b7;
  --nebo-docs-alert-tip-bg: rgba(139, 92, 246, 0.12);
  --nebo-docs-alert-tip-text: #c4b5fd;
}

html[data-docs-theme="light"] {
  --nebo-docs-bg: #e8ecf1;
  --nebo-docs-shell-bg: #ffffff;
  --nebo-docs-surface: #f8fafc;
  --nebo-docs-surface-raised: #f1f5f9;
  --nebo-docs-border: rgba(15, 23, 42, 0.1);
  --nebo-docs-border-strong: rgba(15, 23, 42, 0.16);
  --nebo-docs-text: #334155;
  --nebo-docs-muted: #64748b;
  --nebo-docs-heading: #0f172a;
  --nebo-docs-accent: var(--token-brand-primary-hover);
  --nebo-docs-accent-soft: rgba(5, 150, 105, 0.12);
  --nebo-docs-link: #1d4ed8;
  --nebo-docs-shadow: 0 24px 80px rgba(15, 23, 42, 0.08);
  --nebo-docs-glow-a: rgba(99, 102, 241, 0.06);
  --nebo-docs-glow-b: rgba(139, 92, 246, 0.05);
  --nebo-docs-input-bg: #f8fafc;
  --nebo-docs-code-inline: #f1f5f9;
  --nebo-docs-alert-info-bg: #eff6ff;
  --nebo-docs-alert-info-text: var(--token-status-info);
  --nebo-docs-alert-warning-bg: #ecfdf5;
  --nebo-docs-alert-warning-text: var(--token-brand-primary-active);
  --nebo-docs-alert-success-bg: #ecfdf5;
  --nebo-docs-alert-success-text: #047857;
  --nebo-docs-alert-tip-bg: #f5f3ff;
  --nebo-docs-alert-tip-text: #5b21b6;
}

/* ─── Page shell ─── */
body.nebo-docs-page {
  margin: 0;
  min-height: 100vh;
  background: var(--nebo-docs-bg);
  color: var(--nebo-docs-text);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.nebo-docs-page__backdrop {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 55% 45% at 78% 88%, var(--nebo-docs-glow-a), transparent 70%),
    radial-gradient(ellipse 40% 35% at 62% 72%, var(--nebo-docs-glow-b), transparent 68%);
}

.nebo-docs-shell {
  position: relative;
  z-index: 1;
  max-width: 1440px;
  min-height: calc(100vh - 2rem);
  margin: 1rem auto;
  background: var(--nebo-docs-shell-bg);
  border: 1px solid var(--nebo-docs-border);
  border-radius: var(--nebo-docs-radius);
  box-shadow: var(--nebo-docs-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.nebo-docs-body {
  flex: 1;
  min-height: 0;
}

/* ─── Top header ─── */
.nebo-docs-shell-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(200px, 420px) minmax(0, 1fr);
  align-items: center;
  gap: 1rem;
  min-height: var(--nebo-docs-header-height);
  padding: 0 1.25rem;
  border-bottom: 1px solid var(--nebo-docs-border);
  background: color-mix(in srgb, var(--nebo-docs-shell-bg) 94%, transparent);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 1020;
}

.nebo-docs-shell-header__left {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  min-width: 0;
}

.nebo-docs-shell-header__menu {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--nebo-docs-border);
  border-radius: 0.5rem;
  background: transparent;
  color: var(--nebo-docs-heading);
  cursor: pointer;
}

.nebo-docs-shell-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--nebo-docs-heading);
  min-width: 0;
}

.nebo-docs-shell-header__logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  border: 1px solid var(--nebo-docs-border-strong);
  color: var(--nebo-docs-heading);
  font-size: 1rem;
  flex-shrink: 0;
}

.nebo-docs-shell-header__brand-text {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.nebo-docs-shell-header__search {
  justify-self: center;
  width: 100%;
  max-width: 420px;
  grid-column: 2;
}

.nebo-docs-shell-header__left {
  grid-column: 1;
}

.nebo-docs-shell-header__actions {
  grid-column: 3;
  justify-self: end;
}

.nebo-docs-search {
  position: relative;
}

.nebo-docs-search__input {
  width: 100%;
  height: 2.5rem;
  padding: 0 2.5rem 0 1rem;
  border-radius: 999px;
  border: 1px solid var(--nebo-docs-border-strong);
  background: var(--nebo-docs-input-bg);
  color: var(--nebo-docs-heading);
  font-size: 0.875rem;
  transition: border-color 0.2s ease;
}

.nebo-docs-search__input::placeholder {
  color: var(--nebo-docs-muted);
}

.nebo-docs-search__input:focus,
.nebo-docs-search__input:focus-visible {
  border-color: var(--nebo-docs-border-strong);
  outline: none;
  box-shadow: none;
}

.nebo-docs-search__icon {
  position: absolute;
  right: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--nebo-docs-muted);
  pointer-events: none;
  font-size: 1rem;
}

.nebo-docs-search__clear {
  position: absolute;
  right: 2.35rem;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: transparent;
  color: var(--nebo-docs-muted);
  padding: 0.2rem;
  cursor: pointer;
}

.nebo-docs-search__meta {
  margin-top: 0.5rem;
}

.nebo-docs-search__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.nebo-docs-search__filter {
  border: 1px solid var(--nebo-docs-border);
  background: transparent;
  color: var(--nebo-docs-muted);
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  cursor: pointer;
}

.nebo-docs-search__filter.active,
.nebo-docs-search__filter:hover {
  border-color: color-mix(in srgb, var(--nebo-docs-accent) 40%, var(--nebo-docs-border));
  color: var(--nebo-docs-accent);
  background: var(--nebo-docs-accent-soft);
}

.nebo-docs-search__popular {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.4rem;
  font-size: 0.75rem;
}

.nebo-docs-search__popular-label {
  color: var(--nebo-docs-muted);
}

.nebo-docs-search__popular-term {
  border: none;
  background: transparent;
  color: var(--nebo-docs-link);
  font-size: 0.75rem;
  padding: 0;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.nebo-docs-shell-header__actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
}

.nebo-docs-shell-header__action {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--nebo-docs-border);
  background: transparent;
  color: var(--nebo-docs-text);
  font-size: 0.8125rem;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.nebo-docs-shell-header__action:hover {
  border-color: var(--nebo-docs-border-strong);
  color: var(--nebo-docs-heading);
}

.nebo-docs-shell-header__theme {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  border: 1px solid var(--nebo-docs-border);
  background: transparent;
  color: var(--nebo-docs-heading);
  cursor: pointer;
}

html[data-docs-theme="dark"] .nebo-docs-shell-header__theme-icon--light {
  display: none;
}

html[data-docs-theme="light"] .nebo-docs-shell-header__theme-icon--dark {
  display: none;
}

/* ─── 3-column layout ─── */
.nebo-docs-layout {
  display: grid;
  grid-template-columns: var(--nebo-docs-sidebar-width) minmax(0, 1fr) var(--nebo-docs-toc-width);
  align-items: start;
  min-height: calc(100vh - var(--nebo-docs-header-height) - 2rem);
}

/* Dreams POS sets `aside { background: #fff }` — scope overrides on docs page */
body.nebo-docs-page aside.nebo-docs-sidebar,
body.nebo-docs-page aside.nebo-docs-toc {
  background-color: var(--nebo-docs-shell-bg) !important;
  border-left-color: var(--nebo-docs-border) !important;
}

/* ─── Left sidebar ─── */
.nebo-docs-sidebar {
  position: sticky;
  top: var(--nebo-docs-header-height);
  height: calc(100vh - var(--nebo-docs-header-height) - 2rem);
  overflow-y: auto;
  border-right: 1px solid var(--nebo-docs-border);
  border-left: none !important;
  padding: 1.25rem 0 2rem !important;
  scrollbar-width: thin;
  scrollbar-color: var(--nebo-docs-border-strong) transparent;
}

.nebo-docs-sidebar__nav {
  padding: 0 0.85rem;
}

.nebo-docs-sidebar__heading {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--nebo-docs-muted);
  margin: 1.35rem 0 0.5rem;
  padding: 0 0.35rem;
}

.nebo-docs-sidebar__section:first-child .nebo-docs-sidebar__heading {
  margin-top: 0.25rem;
}

.nebo-docs-sidebar__heading .ti {
  font-size: 0.75rem;
  opacity: 0.85;
}

.nebo-docs-sidebar__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nebo-docs-sidebar__link {
  position: relative;
  display: block;
  padding: 0.3rem 0.35rem 0.3rem 1.1rem;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--nebo-docs-muted);
  text-decoration: none;
  line-height: 1.45;
  transition: color 0.15s ease;
}

.nebo-docs-sidebar__link::before {
  content: "";
  position: absolute;
  left: 0.15rem;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: transparent;
  transition: background 0.15s ease;
}

.nebo-docs-sidebar__link:hover {
  color: var(--nebo-docs-heading);
}

.nebo-docs-sidebar__link.is-active {
  color: var(--nebo-docs-heading);
}

.nebo-docs-sidebar__link.is-active::before {
  background: var(--nebo-docs-accent);
}

/* ─── Main content ─── */
.nebo-docs-main {
  padding: 2rem 2.5rem 3rem;
  max-width: var(--nebo-docs-content-max);
  justify-self: center;
  width: 100%;
  background: var(--nebo-docs-shell-bg);
}

.nebo-docs-body,
.nebo-docs-layout {
  background: var(--nebo-docs-shell-bg);
}

.nebo-doc-article {
  display: none;
}

.nebo-doc-article.is-active {
  display: block;
}

.nebo-doc-article__header {
  margin-bottom: 2rem;
}

.nebo-doc-article__header h1 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
  color: var(--nebo-docs-heading);
  line-height: 1.2;
}

.nebo-doc-article__lead {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--nebo-docs-muted);
  margin: 0;
  max-width: 58ch;
}

.nebo-doc-article h2 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 2.25rem 0 0.85rem;
  padding-top: 2rem;
  border-top: 1px solid var(--nebo-docs-border);
  color: var(--nebo-docs-heading);
  scroll-margin-top: 5rem;
}

.nebo-doc-article h2:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.nebo-doc-article h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
  color: var(--nebo-docs-heading);
  scroll-margin-top: 5rem;
}

.nebo-doc-article p {
  font-size: 0.9375rem;
  line-height: 1.75;
  margin: 0 0 1rem;
  color: var(--nebo-docs-text);
}

.nebo-doc-article a {
  color: var(--nebo-docs-link);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.nebo-doc-article strong {
  color: var(--nebo-docs-heading);
  font-weight: 600;
}

.nebo-doc-list,
.nebo-doc-steps {
  margin: 0 0 1.25rem;
  padding-left: 1.25rem;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--nebo-docs-text);
}

.nebo-doc-list li,
.nebo-doc-steps li {
  margin-bottom: 0.45rem;
}

.nebo-doc-code {
  /* Canonical styles → static/css/nebo-typography.css (Phase 7) */
  margin: 0 0 1rem;
}

.nebo-doc-article code:not(.nebo-doc-code code):not(.nebo-code-inline) {
  /* Inline code → nebo-typography.css .nebo-code-inline; legacy docs wrapper */
  background: var(--nebo-docs-code-inline);
  padding: 0.12rem 0.35rem;
  border-radius: 0.25rem;
  font-size: 0.85em;
  color: var(--nebo-docs-heading);
  font-family: var(--nebo-font-mono);
}

.nebo-doc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  margin: 0 0 1.25rem;
}

.nebo-doc-table th,
.nebo-doc-table td {
  border: 1px solid var(--nebo-docs-border);
  padding: 0.6rem 0.8rem;
  text-align: left;
}

.nebo-doc-table th {
  background: var(--nebo-docs-surface);
  font-weight: 600;
  color: var(--nebo-docs-heading);
}

.nebo-doc-faq dt {
  font-weight: 600;
  margin-top: 0.85rem;
  font-size: 0.9375rem;
  color: var(--nebo-docs-heading);
}

.nebo-doc-faq dd {
  margin: 0.25rem 0 0;
  color: var(--nebo-docs-muted);
  font-size: 0.875rem;
  line-height: 1.65;
}

/* Alerts */
.nebo-doc-alert {
  border-radius: var(--nebo-docs-radius-sm);
  padding: 0.8rem 1rem;
  margin: 0 0 1rem;
  font-size: 0.875rem;
  line-height: 1.55;
  border-left: 3px solid;
}

.nebo-doc-alert__title {
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.nebo-doc-alert--info {
  background: var(--nebo-docs-alert-info-bg);
  border-color: var(--token-status-info);
  color: var(--nebo-docs-alert-info-text);
}

.nebo-doc-alert--warning {
  background: var(--nebo-docs-alert-warning-bg);
  border-color: var(--token-brand-primary-border);
  color: var(--nebo-docs-alert-warning-text);
}

.nebo-doc-alert--success {
  background: var(--nebo-docs-alert-success-bg);
  border-color: #10b981;
  color: var(--nebo-docs-alert-success-text);
}

.nebo-doc-alert--tip {
  background: var(--nebo-docs-alert-tip-bg);
  border-color: #8b5cf6;
  color: var(--nebo-docs-alert-tip-text);
}

/* Search results */
.nebo-docs-search-results__title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
  color: var(--nebo-docs-heading);
}

.nebo-docs-search-results__count {
  font-size: 0.8125rem;
  color: var(--nebo-docs-muted);
  margin: 0 0 1.25rem;
}

.nebo-docs-search-results__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nebo-docs-search-results__item a {
  display: block;
  padding: 0.85rem 1rem;
  border: 1px solid var(--nebo-docs-border);
  border-radius: var(--nebo-docs-radius-sm);
  margin-bottom: 0.5rem;
  text-decoration: none;
  background: var(--nebo-docs-surface);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.nebo-docs-search-results__item a:hover {
  border-color: var(--nebo-docs-border-strong);
  background: var(--nebo-docs-surface-raised);
}

.nebo-docs-search-results__item-title {
  display: block;
  font-weight: 600;
  color: var(--nebo-docs-heading);
  font-size: 0.9375rem;
}

.nebo-docs-search-results__item-section {
  display: block;
  font-size: 0.75rem;
  color: var(--nebo-docs-muted);
  margin-top: 0.2rem;
}

.nebo-docs-search-results__empty {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--nebo-docs-muted);
}

.nebo-docs-search-results__empty .ti {
  font-size: 2rem;
  opacity: 0.45;
  display: block;
  margin-bottom: 0.5rem;
}

.nebo-docs-search-results__recent h3 {
  font-size: 0.8125rem;
  margin: 1.5rem 0 0.5rem;
  color: var(--nebo-docs-muted);
}

.nebo-docs-search-results__recent ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nebo-docs-search-results__recent a {
  font-size: 0.875rem;
  color: var(--nebo-docs-link);
}

/* Article nav */
.nebo-doc-article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--nebo-docs-border);
}

.nebo-doc-article-nav__link {
  display: block;
  padding: 0.85rem 1rem;
  border: 1px solid var(--nebo-docs-border);
  border-radius: var(--nebo-docs-radius-sm);
  text-decoration: none;
  background: var(--nebo-docs-surface);
  transition: border-color 0.2s ease;
}

.nebo-doc-article-nav__link:hover {
  border-color: var(--nebo-docs-border-strong);
}

.nebo-doc-article-nav__link--next {
  text-align: right;
}

.nebo-doc-article-nav__label {
  display: block;
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--nebo-docs-muted);
  margin-bottom: 0.3rem;
}

.nebo-doc-article-nav__title {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--nebo-docs-heading);
}

/* ─── Right TOC ─── */
.nebo-docs-toc {
  position: sticky;
  top: var(--nebo-docs-header-height);
  height: calc(100vh - var(--nebo-docs-header-height) - 2rem);
  overflow-y: auto;
  padding: 1.5rem 1rem 2rem !important;
  border-left: 1px solid var(--nebo-docs-border) !important;
  scrollbar-width: thin;
}

.nebo-docs-toc__title {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--nebo-docs-heading);
  margin: 0 0 0.85rem;
}

.nebo-docs-toc__nav {
  position: relative;
  margin-bottom: 1.5rem;
  padding-left: 0.85rem;
}

.nebo-docs-toc__nav::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.15rem;
  bottom: 0.15rem;
  width: 2px;
  border-radius: 1px;
  background: var(--nebo-docs-border);
}

.nebo-docs-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nebo-docs-toc__item {
  position: relative;
}

.nebo-docs-toc__item a {
  display: block;
  font-size: 0.75rem;
  color: var(--nebo-docs-muted);
  text-decoration: none;
  padding: 0.28rem 0;
  line-height: 1.4;
  transition: color 0.15s ease;
}

.nebo-docs-toc__item a:hover,
.nebo-docs-toc__item.is-active a {
  color: var(--nebo-docs-heading);
}

.nebo-docs-toc__item.is-active::before {
  content: "";
  position: absolute;
  left: -0.85rem;
  top: 0.15rem;
  bottom: 0.15rem;
  width: 2px;
  border-radius: 1px;
  background: var(--nebo-docs-accent);
}

.nebo-docs-toc__item--h3 a {
  padding-left: 0.65rem;
  font-size: 0.6875rem;
}

.nebo-docs-toc__item--empty {
  font-size: 0.75rem;
  color: var(--nebo-docs-muted);
}

.nebo-docs-toc__subtitle {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--nebo-docs-muted);
  margin: 0 0 0.45rem;
}

.nebo-docs-toc__related,
.nebo-docs-toc__actions-list {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
}

.nebo-docs-toc__related a,
.nebo-docs-toc__actions-list a {
  display: block;
  font-size: 0.75rem;
  color: var(--nebo-docs-text);
  text-decoration: none;
  padding: 0.22rem 0;
  transition: color 0.15s ease;
}

.nebo-docs-toc__related a:hover,
.nebo-docs-toc__actions-list a:hover {
  color: var(--nebo-docs-heading);
}

.nebo-docs-toc__actions-list .ti {
  margin-right: 0.3rem;
  vertical-align: -2px;
  opacity: 0.75;
}

.nebo-docs-toc__block {
  margin-bottom: 1rem;
}

.nebo-docs-toc__toolbar {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.nebo-docs-toc__action {
  border: 1px solid var(--nebo-docs-border);
  background: transparent;
  border-radius: 0.4rem;
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--nebo-docs-muted);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.nebo-docs-toc__action:hover {
  color: var(--nebo-docs-heading);
  border-color: var(--nebo-docs-border-strong);
}

/* Feedback */
.nebo-doc-feedback {
  padding-top: 0.85rem;
  border-top: 1px solid var(--nebo-docs-border);
}

.nebo-doc-feedback__label {
  font-size: 0.75rem;
  font-weight: 600;
  margin: 0 0 0.45rem;
  color: var(--nebo-docs-heading);
}

.nebo-doc-feedback__actions {
  display: flex;
  gap: 0.35rem;
}

.nebo-doc-feedback__btn {
  flex: 1;
  border: 1px solid var(--nebo-docs-border);
  background: transparent;
  border-radius: 0.4rem;
  padding: 0.35rem 0.5rem;
  font-size: 0.75rem;
  color: var(--nebo-docs-text);
  cursor: pointer;
}

.nebo-doc-feedback__btn:hover {
  border-color: var(--nebo-docs-border-strong);
  color: var(--nebo-docs-heading);
}

.nebo-doc-feedback__thanks {
  font-size: 0.75rem;
  color: var(--nebo-docs-accent);
  margin: 0.5rem 0 0;
}

/* Mobile sidebar */
.nebo-docs-sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  z-index: 1040;
  backdrop-filter: blur(2px);
}

/* ─── Responsive ─── */
@media (max-width: 1199.98px) {
  .nebo-docs-layout {
    grid-template-columns: var(--nebo-docs-sidebar-width) minmax(0, 1fr);
  }

  .nebo-docs-toc {
    display: none;
  }
}

@media (max-width: 991.98px) {
  .nebo-docs-shell {
    margin: 0;
    min-height: 100vh;
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

  .nebo-docs-shell-header {
    grid-template-columns: auto 1fr auto;
    padding: 0 0.85rem;
  }

  .nebo-docs-shell-header__action span {
    display: none;
  }

  .nebo-docs-shell-header__search {
    max-width: none;
  }

  .nebo-docs-layout {
    grid-template-columns: 1fr;
  }

  .nebo-docs-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: min(300px, 88vw);
    height: 100vh;
    z-index: 1050;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    background: var(--nebo-docs-shell-bg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  }

  .nebo-docs-sidebar.is-open {
    transform: translateX(0);
  }

  .nebo-docs-main {
    padding: 1.25rem 1rem 2.5rem;
  }
}

@media print {
  .nebo-docs-page__backdrop,
  .nebo-docs-shell-header,
  .nebo-docs-sidebar,
  .nebo-docs-toc,
  .nebo-doc-article-nav,
  .nebo-doc-feedback {
    display: none !important;
  }

  .nebo-docs-shell {
    margin: 0;
    border: none;
    box-shadow: none;
  }

  .nebo-docs-layout {
    display: block;
  }

  .nebo-doc-article {
    display: block !important;
  }

  .nebo-doc-article:not(.is-active) {
    display: none !important;
  }
}