/*!
 * 知识博客前台（kb）
 *
 * 独立于 Bootstrap / main.css：只有这一份样式，页面 <body class="kb">。
 * 设计语言：近黑底 + 单一薄荷绿强调；展示字用自托管衬线（Newsreader + 系统宋体），
 * 界面与数据用无衬线/等宽；层级靠字号与色调，不靠描边、阴影与分隔线。
 */

@font-face {
  font-family: "Newsreader";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/newsreader/newsreader-latin-400-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Newsreader";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/newsreader/newsreader-latin-500-normal.woff2") format("woff2");
}

:root {
  --kb-ground: #070a09;
  --kb-surface: #0e1312;
  --kb-surface-2: #141b19;
  --kb-surface-3: #1b2422;
  --kb-line: #232e2b;
  --kb-ink: #e7ece9;
  --kb-fg: #cdd6d2;
  --kb-muted: #9fb0aa;
  --kb-faint: #7f8f8a;
  --kb-accent: #2fd39b;
  --kb-accent-dim: #123d2f;
  --kb-accent-ink: #04140e;
  --kb-serif: "Newsreader", "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", "SimSun", Georgia, serif;
  --kb-sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --kb-mono: "SF Mono", Menlo, Consolas, "Courier New", monospace;
  --kb-radius: 3px;
  --kb-wrap: 1280px;
}

/* ==========================================================================
   基础
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--kb-ground);
}

body.kb {
  margin: 0;
  background: var(--kb-ground);
  color: var(--kb-fg);
  font-family: var(--kb-sans);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  caret-color: var(--kb-accent);
}

.kb ::selection {
  background: #1d5342;
  color: var(--kb-ink);
}

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

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

.kb img {
  max-width: 100%;
  height: auto;
}

.kb :focus-visible {
  outline: 2px solid var(--kb-accent);
  outline-offset: 3px;
}

.kb ::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

.kb ::-webkit-scrollbar-track {
  background: var(--kb-ground);
}

.kb ::-webkit-scrollbar-thumb {
  background: #2b3733;
  border-radius: 5px;
}

.kb-wrap {
  width: 100%;
  max-width: var(--kb-wrap);
  margin: 0 auto;
  padding: 0 40px;
}

@media (max-width: 700px) {
  .kb-wrap {
    padding: 0 20px;
  }
}

/* ==========================================================================
   顶栏
   ========================================================================== */

.kb-head {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 10, 9, 0.86);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  backdrop-filter: saturate(140%) blur(10px);
  box-shadow: inset 0 -1px 0 var(--kb-line);
}

.kb-head__inner {
  display: flex;
  align-items: center;
  gap: 28px;
  min-height: 64px;
}

.kb-brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--kb-serif);
  font-size: 21px;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--kb-ink);
  white-space: nowrap;
}

.kb-brand__mark {
  color: var(--kb-accent);
  font-size: 15px;
  letter-spacing: 0;
}

.kb-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14px;
  color: var(--kb-muted);
}

.kb-nav a.is-active {
  color: var(--kb-ink);
}

.kb-search {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  background: var(--kb-surface);
  border-radius: var(--kb-radius);
  min-width: 220px;
}

.kb-search__icon {
  color: var(--kb-faint);
  font-size: 13px;
}

.kb-search input {
  flex: 1;
  min-width: 0;
  background: none;
  border: 0;
  outline: 0;
  color: var(--kb-ink);
  font: inherit;
  font-size: 13px;
}

.kb-search input::placeholder {
  color: var(--kb-faint);
}

@media (max-width: 860px) {
  .kb-head__inner {
    flex-wrap: wrap;
    gap: 12px 20px;
    padding: 12px 0;
  }

  .kb-search {
    order: 3;
    width: 100%;
    margin-left: 0;
    min-width: 0;
  }
}

/* ==========================================================================
   刊头 / 统计
   ========================================================================== */

.kb-masthead {
  padding: 56px 0 40px 0;
}

.kb-masthead__title {
  margin: 0;
  font-family: var(--kb-serif);
  font-size: 44px;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--kb-ink);
}

.kb-masthead__desc {
  margin: 14px 0 0 0;
  max-width: 36em;
  font-size: 15px;
  color: var(--kb-muted);
}

.kb-stats {
  margin-top: 22px;
  font-family: var(--kb-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--kb-faint);
}

.kb-stats b {
  font-weight: 500;
  color: var(--kb-accent);
}

.kb-stats span + span::before {
  content: "  /  ";
  color: #3a4744;
}

/* ==========================================================================
   首页两栏
   ========================================================================== */

.kb-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 268px;
  gap: 72px;
  padding-bottom: 40px;
}

.kb-rail {
  padding-top: 10px;
}

.kb-rail__section {
  margin-bottom: 40px;
}

.kb-rail__title {
  margin: 0 0 16px 0;
  font-family: var(--kb-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--kb-faint);
}

@media (max-width: 980px) {
  .kb-columns {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
  }
}

/* ==========================================================================
   文章流（首页 / 标签 / 归档 / 搜索共用）
   ========================================================================== */

.kb-month {
  margin: 38px 0 6px 0;
  font-family: var(--kb-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--kb-faint);
}

.kb-row {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--kb-line);
}

.kb-row:last-child {
  border-bottom: 0;
}

.kb-row__glyph {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  font-family: var(--kb-serif);
  font-size: 15px;
  line-height: 1;
  color: var(--kb-accent);
  background: var(--kb-accent-dim);
  border-radius: var(--kb-radius);
}

.kb-row__glyph--plain {
  background: transparent;
  color: var(--kb-faint);
}

.kb-row__title {
  margin: 0 0 6px 0;
  font-family: var(--kb-serif);
  font-size: 22px;
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.35;
  color: var(--kb-ink);
}

.kb-row__title a:hover {
  color: var(--kb-accent);
}

.kb-row__excerpt {
  margin: 0;
  max-width: 44em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--kb-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.kb-row__meta {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 14px;
  font-family: var(--kb-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--kb-faint);
}

.kb-row__series {
  color: var(--kb-accent);
}

.kb-row__tags {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0 10px;
}

.kb-row__tags a {
  color: var(--kb-faint);
}

.kb-row__tags a:hover {
  color: var(--kb-accent);
}

.kb-row__tags span + span::before {
  content: " ";
}

/* ==========================================================================
   侧栏：系列书脊 / 标签
   ========================================================================== */

.kb-spine {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.kb-spine__item {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 9px 0;
}

.kb-spine__glyph {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  font-family: var(--kb-serif);
  font-size: 13px;
  color: var(--kb-accent);
  background: var(--kb-accent-dim);
  border-radius: var(--kb-radius);
}

.kb-spine__name {
  min-width: 0;
  font-size: 13.5px;
  color: var(--kb-fg);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.kb-spine__item:hover .kb-spine__name {
  color: var(--kb-accent);
}

.kb-spine__count {
  font-family: var(--kb-mono);
  font-size: 12px;
  color: var(--kb-faint);
}

.kb-taglist {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
}

.kb-taglist a {
  font-size: 13px;
  color: var(--kb-muted);
}

.kb-taglist a:hover {
  color: var(--kb-accent);
}

.kb-taglist em {
  font-family: var(--kb-mono);
  font-style: normal;
  font-size: 12px;
  color: var(--kb-faint);
  margin-left: 3px;
}

/* ==========================================================================
   文章页
   ========================================================================== */

.kb-article {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 56px;
  align-items: start;
  padding: 40px 0 60px 0;
}

.kb-article--plain {
  grid-template-columns: minmax(0, 1fr);
}

.kb-toc {
  position: sticky;
  top: 96px;
}

.kb-toc__title {
  font-family: var(--kb-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--kb-faint);
  margin-bottom: 12px;
}

.kb-toc a {
  display: block;
  padding: 4px 0;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--kb-muted);
}

.kb-toc a:hover {
  color: var(--kb-accent);
}

.kb-toc .toc-l2 {
  padding-left: 12px;
}

.kb-toc .toc-l3 {
  padding-left: 24px;
  font-size: 12px;
  color: var(--kb-faint);
}

.kb-crumb {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  font-family: var(--kb-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--kb-faint);
}

.kb-crumb a {
  color: var(--kb-accent);
}

.kb-post__title {
  margin: 0 0 18px 0;
  font-family: var(--kb-serif);
  font-size: 40px;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--kb-ink);
}

.kb-post__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-bottom: 40px;
  font-family: var(--kb-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--kb-faint);
}

.kb-post__meta b {
  font-weight: 400;
  color: var(--kb-muted);
}

.kb-prose {
  max-width: 38em;
  font-family: var(--kb-serif);
  font-size: 18px;
  line-height: 1.9;
  color: var(--kb-fg);
}

.kb-prose > *:first-child {
  margin-top: 0;
}

.kb-prose p {
  margin: 0 0 22px 0;
}

.kb-prose h1,
.kb-prose h2,
.kb-prose h3,
.kb-prose h4 {
  margin: 52px 0 16px 0;
  font-family: var(--kb-serif);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.3;
  color: var(--kb-ink);
}

.kb-prose h1 {
  font-size: 30px;
}

.kb-prose h2 {
  font-size: 25px;
}

.kb-prose h3 {
  font-size: 20px;
}

.kb-prose ul,
.kb-prose ol {
  margin: 0 0 22px 0;
  padding-left: 24px;
}

.kb-prose li {
  margin-bottom: 8px;
}

.kb-prose a {
  color: var(--kb-accent);
  text-decoration: underline;
  text-decoration-color: rgba(47, 211, 155, 0.35);
  text-underline-offset: 0.2em;
}

.kb-prose a:hover {
  text-decoration-color: var(--kb-accent);
}

.kb-prose blockquote {
  margin: 0 0 24px 0;
  padding: 18px 22px;
  background: var(--kb-surface);
  border-radius: var(--kb-radius);
  color: var(--kb-muted);
  font-size: 17px;
}

.kb-prose blockquote p:last-child {
  margin-bottom: 0;
}

.kb-prose code {
  font-family: var(--kb-mono);
  font-size: 0.88em;
  padding: 1px 5px;
  color: #ff9db0;
  background: #2a1a1f;
  border-radius: 2px;
}

.kb-prose pre {
  margin: 0 0 24px 0;
  padding: 18px 20px;
  overflow: auto;
  background: var(--kb-surface);
  border-radius: var(--kb-radius);
}

.kb-prose pre code {
  padding: 0;
  background: none;
  color: #cfe6de;
  font-size: 13.5px;
  line-height: 1.7;
}

.kb-prose table {
  width: 100%;
  margin-bottom: 24px;
  border-collapse: collapse;
  font-family: var(--kb-sans);
  font-size: 14px;
}

.kb-prose th,
.kb-prose td {
  padding: 9px 12px;
  text-align: left;
}

.kb-prose thead th {
  background: var(--kb-surface);
  color: var(--kb-ink);
  font-weight: 500;
}

.kb-prose tbody tr:nth-child(even) {
  background: #0b1110;
}

.kb-prose img {
  border-radius: var(--kb-radius);
}

.kb-prose hr {
  margin: 44px 0;
  border: 0;
  border-top: 1px solid var(--kb-line);
}

.kb-post__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-top: 44px;
  font-size: 13px;
}

.kb-post__tags a {
  color: var(--kb-muted);
}

.kb-post__tags a:hover {
  color: var(--kb-accent);
}

/* 系列上下文 */
.kb-series-box {
  max-width: 38em;
  margin-top: 52px;
  padding: 24px 26px;
  background: var(--kb-surface);
  border-radius: var(--kb-radius);
}

.kb-series-box__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.kb-series-box__name {
  font-family: var(--kb-serif);
  font-size: 19px;
  color: var(--kb-ink);
}

.kb-series-box__count {
  font-family: var(--kb-mono);
  font-size: 12px;
  color: var(--kb-faint);
}

.kb-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 18px;
}

.kb-pager a,
.kb-pager span {
  display: block;
  padding: 12px 14px;
  background: var(--kb-surface-2);
  border-radius: var(--kb-radius);
  font-size: 13.5px;
  color: var(--kb-fg);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.kb-pager a:hover {
  background: var(--kb-accent-dim);
  color: var(--kb-accent);
}

.kb-pager .is-next {
  text-align: right;
}

.kb-pager .is-empty {
  color: var(--kb-faint);
}

.kb-related {
  margin-top: 52px;
}

.kb-related__title {
  margin: 0 0 10px 0;
  font-family: var(--kb-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--kb-faint);
}

@media (max-width: 1080px) {
  .kb-article {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .kb-toc {
    position: static;
    order: -1;
  }
}

@media (max-width: 640px) {
  .kb-post__title {
    font-size: 30px;
  }

  .kb-prose {
    font-size: 17px;
  }

  .kb-pager {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   系列页 / 列表页通用
   ========================================================================== */

.kb-page-head {
  padding: 48px 0 28px 0;
}

.kb-page-head__eyebrow {
  font-family: var(--kb-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--kb-accent);
  margin-bottom: 12px;
}

.kb-page-head__title {
  margin: 0;
  font-family: var(--kb-serif);
  font-size: 40px;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--kb-ink);
}

.kb-page-head__desc {
  margin: 14px 0 0 0;
  max-width: 40em;
  font-size: 15px;
  color: var(--kb-muted);
}

.kb-page-head__stats {
  margin-top: 18px;
  font-family: var(--kb-mono);
  font-size: 12px;
  color: var(--kb-faint);
}

/* 系列目录 */
.kb-toc-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: kb-chapter;
}

.kb-toc-list li {
  counter-increment: kb-chapter;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--kb-line);
}

.kb-toc-list li::before {
  content: counter(kb-chapter, decimal-leading-zero);
  font-family: var(--kb-mono);
  font-size: 12px;
  color: var(--kb-accent);
}

.kb-toc-list li:last-child {
  border-bottom: 0;
}

.kb-toc-list a {
  font-family: var(--kb-serif);
  font-size: 20px;
  color: var(--kb-ink);
  line-height: 1.4;
}

.kb-toc-list a:hover {
  color: var(--kb-accent);
}

.kb-toc-list .kb-toc-list__meta {
  font-family: var(--kb-mono);
  font-size: 12px;
  color: var(--kb-faint);
  white-space: nowrap;
}

/* ==========================================================================
   空态 / 页脚 / 分页
   ========================================================================== */

.kb-empty {
  padding: 90px 0;
  font-family: var(--kb-serif);
  font-size: 22px;
  color: var(--kb-faint);
}

.kb-pagination {
  display: flex;
  gap: 10px;
  margin: 40px 0 20px 0;
}

.kb-pagination a {
  padding: 8px 16px;
  background: var(--kb-surface);
  border-radius: var(--kb-radius);
  font-size: 13px;
  color: var(--kb-fg);
}

.kb-pagination a:hover {
  background: var(--kb-accent-dim);
  color: var(--kb-accent);
}

.kb-foot {
  margin-top: 60px;
  padding: 34px 0 48px 0;
  box-shadow: inset 0 1px 0 var(--kb-line);
  font-size: 12.5px;
  color: var(--kb-faint);
}

.kb-foot__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
}

.kb-foot a {
  color: var(--kb-muted);
}

.kb-foot a:hover {
  color: var(--kb-accent);
}

.kb-foot__spacer {
  margin-left: auto;
}

.kb-mono {
  font-family: var(--kb-mono);
  font-size: 0.92em;
}

.kb-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   项目列表（文档站）：平铺卡片，不按项目空间分组
   ========================================================================== */

.kb-projects {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
  padding: 8px 0 56px;
}

.kb-project {
  display: flex;
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--kb-line);
  border-radius: 10px;
  background: var(--kb-surface);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.kb-project:hover {
  border-color: var(--kb-accent);
  background: var(--kb-surface-2);
}

.kb-project__cover {
  flex: 0 0 64px;
  width: 64px;
  height: 86px;
  border-radius: 6px;
  overflow: hidden;
  display: grid;
  place-items: center;
  background: var(--kb-accent-dim);
  color: var(--kb-accent);
}

.kb-project__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.kb-project__glyph {
  font-family: var(--kb-serif);
  font-size: 26px;
  line-height: 1;
}

.kb-project__body {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.kb-project__name {
  font-size: 16px;
  font-weight: 500;
  color: var(--kb-ink);
  line-height: 1.35;
}

.kb-project__desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--kb-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.kb-project__meta {
  margin-top: auto;
  font-family: var(--kb-mono);
  font-size: 11px;
  color: var(--kb-faint);
}

/* 标签页：二级筛选面 */
.kb-facets {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  padding: 4px 0 26px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--kb-line);
}

.kb-facets__label {
  font-family: var(--kb-mono);
  font-size: 11px;
  color: var(--kb-faint);
  margin-right: 2px;
}

.kb-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--kb-line);
  border-radius: 999px;
  font-size: 12px;
  line-height: 1.4;
  color: var(--kb-muted);
  text-decoration: none;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.kb-chip:hover {
  border-color: var(--kb-accent);
  color: var(--kb-ink);
}

.kb-chip.is-active {
  border-color: var(--kb-accent);
  background: var(--kb-accent-dim);
  color: var(--kb-accent);
}

.kb-chip em {
  font-style: normal;
  font-family: var(--kb-mono);
  font-size: 10px;
  color: var(--kb-faint);
}

.kb-chip--clear {
  border-style: dashed;
}

/* 标签总览：按分类分组 */
.kb-taggroup {
  padding: 2px 0 26px;
}

.kb-taggroup__label {
  margin: 0 0 12px;
  font-family: var(--kb-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--kb-accent);
}

.kb-taggroup__label em {
  margin-left: 6px;
  font-style: normal;
  color: var(--kb-faint);
}

/* 标签页筛选：每类一行 */
.kb-facetgroup {
  flex-basis: 100%;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
}

.kb-facetgroup .kb-facets__label {
  min-width: 64px;
}

/* 文章页：编辑入口（仅作者/管理员/项目编辑可见） */
.kb-post__edit {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border: 1px solid var(--kb-line);
  border-radius: 999px;
  font-size: 12px;
  color: var(--kb-muted);
  text-decoration: none;
}

.kb-post__edit:hover {
  border-color: var(--kb-accent);
  color: var(--kb-accent);
}

/* 顶部用户菜单（个人设置/管理后台/退出） */
.kb-user {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: 0;
  padding: 4px 8px;
  border-radius: 8px;
  cursor: pointer;
  flex-shrink: 0;
  outline: none;
}

.kb-user:hover { background: var(--kb-surface-2); }

.kb-user__avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

.kb-user__name { font-size: 13px; color: var(--kb-ink); }
.kb-user__role { font-size: 11px; color: var(--kb-faint); }
.kb-user__caret { font-size: 10px; color: var(--kb-muted); }

.kb-user__menu {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  min-width: 150px;
  padding: 6px;
  background: var(--kb-surface-2);
  border: 1px solid var(--kb-line);
  border-radius: 8px;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.55);
  z-index: 80;
}

.kb-user:hover .kb-user__menu,
.kb-user:focus-within .kb-user__menu { display: block; }

.kb-user__menu a {
  display: block;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--kb-muted);
  text-decoration: none;
}

.kb-user__menu a:hover { background: var(--kb-surface-3); color: var(--kb-ink); }