:root{
  --ink:#0A1220;
  --panel:#0F1A2C;
  --panel-2:#13233B;
  --line:rgba(86,180,240,.16);
  --line-strong:rgba(86,180,240,.35);
  --cyan:#4FC3F7;
  --cyan-soft:rgba(79,195,247,.12);
  --amber:#F5A623;
  --green:#6FCF97;
  --text:#CBD8EA;
  --muted:#8296B0;
  --white:#EEF5FC;
  --radius:14px;
  --sidebar-w:280px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  background:var(--ink);
  color:var(--text);
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline}
a:focus-visible,button:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:4px}
h1,h2,h3,h4{font-family:'Space Grotesk',sans-serif;color:var(--white);line-height:1.25}
.mono{font-family:'IBM Plex Mono',monospace}
img{max-width:100%;display:block}

/* ---------- top bar ---------- */
.topbar{
  position:sticky;top:0;z-index:60;
  background:rgba(10,18,32,.9);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 20px;
}
.topbar .brand{font-family:'IBM Plex Mono',monospace;font-size:.9rem;color:var(--white)}
.topbar .brand .cursor{color:var(--amber)}
.topbar-links{display:flex;align-items:center;gap:18px}
.topbar-links a{font-size:.82rem;color:var(--muted);letter-spacing:.03em}
.topbar-links a:hover{color:var(--cyan);text-decoration:none}
.topbar-links a.current{color:var(--cyan)}
.menu-toggle{
  display:none;background:none;border:1px solid var(--line-strong);color:var(--text);
  border-radius:8px;padding:7px 10px;font-family:'IBM Plex Mono',monospace;font-size:.8rem;cursor:pointer;
}

/* ---------- shell layout ---------- */
.shell{display:flex;max-width:1280px;margin:0 auto;min-height:calc(100vh - 53px)}

/* ---------- sidebar ---------- */
.sidebar{
  width:var(--sidebar-w);flex-shrink:0;
  border-right:1px solid var(--line);
  padding:24px 18px 60px;
  position:sticky;top:53px;
  height:calc(100vh - 53px);
  overflow-y:auto;
}
.sidebar-search{
  width:100%;background:var(--panel);border:1px solid var(--line);border-radius:8px;
  color:var(--text);padding:9px 12px;font-size:.85rem;font-family:'Inter',sans-serif;margin-bottom:20px;
}
.sidebar-search::placeholder{color:var(--muted)}
.sidebar-search:focus{outline:none;border-color:var(--cyan)}
.nav-group{margin-bottom:6px}
.nav-group-title{
  display:flex;align-items:center;justify-content:space-between;
  font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--amber);padding:10px 8px;cursor:pointer;border-radius:6px;user-select:none;
}
.nav-group-title:hover{background:var(--panel)}
.nav-group-title .chev{transition:transform .18s;font-size:.7rem;color:var(--muted)}
.nav-group.collapsed .chev{transform:rotate(-90deg)}
.nav-group.collapsed .nav-list{display:none}
.nav-list{list-style:none;margin-bottom:8px}
.nav-list li a{
  display:flex;align-items:center;gap:8px;
  font-size:.87rem;color:var(--text);padding:7px 10px 7px 18px;border-radius:6px;
  border-left:2px solid transparent;
}
.nav-list li a:hover{background:var(--panel);text-decoration:none;color:var(--cyan)}
.nav-list li a.active{color:var(--cyan);background:var(--cyan-soft);border-left-color:var(--cyan)}
.status-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}
.status-dot.done{background:var(--green)}
.status-dot.todo{background:var(--muted);opacity:.5}
.sidebar-footer-link{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:.78rem;
}

/* ---------- main content ---------- */
main{flex:1;min-width:0;padding:40px 48px 100px}
@media(max-width:960px){main{padding:32px 24px 80px}}
.content{max-width:760px}
.breadcrumb{font-family:'IBM Plex Mono',monospace;font-size:.78rem;color:var(--muted);margin-bottom:18px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--cyan)}
.page-eyebrow{font-family:'IBM Plex Mono',monospace;font-size:.75rem;color:var(--amber);letter-spacing:.14em;text-transform:uppercase;margin-bottom:10px}
.page-title{font-size:clamp(1.7rem,3.2vw,2.3rem);margin-bottom:8px;letter-spacing:-.01em}
.page-subtitle{color:var(--muted);font-size:1.02rem;margin-bottom:28px;max-width:60ch}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;font-family:'IBM Plex Mono',monospace;
  font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;padding:4px 10px;border-radius:20px;
  border:1px solid var(--line-strong);margin-bottom:22px;
}
.status-badge.done{color:var(--green);border-color:rgba(111,207,151,.4)}
.status-badge.todo{color:var(--muted)}

.content h2{font-size:1.35rem;margin:36px 0 12px;padding-top:6px;border-top:1px solid var(--line)}
.content h2:first-of-type{border-top:none;margin-top:8px}
.content h3{font-size:1.05rem;color:var(--cyan);margin:22px 0 8px}
.content p{margin-bottom:14px;color:var(--text)}
.content ul,.content ol{margin:0 0 14px 22px;color:var(--text)}
.content li{margin-bottom:6px}
.content strong{color:var(--white)}

pre{
  background:#08111F;border:1px solid var(--line);border-radius:10px;
  padding:16px 18px;overflow-x:auto;margin:14px 0 20px;
}
code{font-family:'IBM Plex Mono',monospace;font-size:.85rem}
pre code{color:#B8E6C4;line-height:1.6}
p code,li code{background:var(--panel);color:var(--cyan);padding:2px 6px;border-radius:4px;font-size:.85em}

.callout{
  border:1px solid var(--line-strong);border-left:3px solid var(--cyan);border-radius:8px;
  padding:14px 18px;margin:18px 0;background:var(--panel);font-size:.92rem;
}
.callout.warn{border-left-color:var(--amber)}
.callout .callout-label{font-family:'IBM Plex Mono',monospace;font-size:.72rem;color:var(--cyan);letter-spacing:.08em;text-transform:uppercase;display:block;margin-bottom:6px}
.callout.warn .callout-label{color:var(--amber)}

.wiki-figure{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin:22px 0;background:var(--panel);
}
.wiki-figure figcaption{padding:12px 16px;font-family:'IBM Plex Mono',monospace;font-size:.75rem;color:var(--muted)}

.video-slot{
  border:1.5px dashed var(--line-strong);border-radius:var(--radius);
  padding:38px 20px;text-align:center;margin:22px 0;color:var(--muted);
}
.video-slot .vs-icon{font-size:1.6rem;margin-bottom:8px}
.video-slot .vs-title{font-family:'Space Grotesk',sans-serif;color:var(--text);font-size:.95rem;margin-bottom:4px}
.video-slot .vs-sub{font-size:.8rem}

table{width:100%;border-collapse:collapse;margin:16px 0 22px;font-size:.88rem}
th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line)}
th{color:var(--amber);font-family:'IBM Plex Mono',monospace;font-size:.75rem;letter-spacing:.05em;text-transform:uppercase}

.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 22px}
.tag{font-family:'IBM Plex Mono',monospace;font-size:.74rem;color:var(--cyan);background:var(--cyan-soft);border:1px solid var(--line);padding:5px 10px;border-radius:6px}

.page-nav{display:flex;justify-content:space-between;gap:16px;margin-top:50px;padding-top:20px;border-top:1px solid var(--line)}
.page-nav a{
  flex:1;border:1px solid var(--line);border-radius:10px;padding:14px 16px;font-size:.85rem;
}
.page-nav a:hover{border-color:var(--line-strong);text-decoration:none;background:var(--panel)}
.page-nav .dir{display:block;color:var(--muted);font-family:'IBM Plex Mono',monospace;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:4px}
.page-nav .right{text-align:right}

/* ---------- home page cards ---------- */
.wiki-hero{padding:50px 48px 20px;max-width:1280px;margin:0 auto}
.wiki-hero h1{font-size:clamp(1.9rem,4vw,2.6rem);margin-bottom:12px}
.wiki-hero p{color:var(--muted);max-width:64ch;font-size:1.02rem}
.group-section{padding:20px 48px 10px;max-width:1280px;margin:0 auto}
@media(max-width:760px){.wiki-hero,.group-section{padding-left:22px;padding-right:22px}}
.group-heading{display:flex;align-items:center;gap:10px;margin:36px 0 16px}
.group-heading h2{font-size:1.2rem;color:var(--white);margin:0}
.group-heading .count{font-family:'IBM Plex Mono',monospace;font-size:.75rem;color:var(--muted)}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.topic-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;transition:border-color .2s,transform .2s;
}
.topic-card:hover{border-color:var(--line-strong);transform:translateY(-2px);text-decoration:none}
.topic-card h3{font-size:1rem;color:var(--white);margin-bottom:6px}
.topic-card p{font-size:.83rem;color:var(--muted);margin-bottom:10px}

/* ---------- mobile sidebar ---------- */
@media(max-width:960px){
  .menu-toggle{display:inline-block}
  .sidebar{
    position:fixed;left:0;top:53px;bottom:0;z-index:55;background:var(--ink);
    transform:translateX(-100%);transition:transform .22s ease;width:82vw;max-width:320px;
  }
  .sidebar.open{transform:translateX(0);box-shadow:20px 0 40px rgba(0,0,0,.4)}
  .sidebar-backdrop{display:none;position:fixed;inset:0;top:53px;background:rgba(0,0,0,.5);z-index:54}
  .sidebar-backdrop.show{display:block}
}

/* ============================================================
   CI/CD SERIES COMPONENTS (merged from series stylesheet,
   mapped onto this wiki's variable palette)
   ============================================================ */
.subtitle{color:var(--muted);font-size:1.02rem;margin:0 0 26px;max-width:62ch}
.step{border:1px solid var(--line);border-left:3px solid var(--cyan);border-radius:8px;padding:16px 18px 6px;margin:16px 0;background:var(--panel)}
.step-num{display:inline-block;font-family:'IBM Plex Mono',monospace;font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;color:var(--cyan);margin-bottom:8px}
.note,.warn,.tip{border:1px solid var(--line-strong);border-left:3px solid var(--cyan);border-radius:8px;padding:14px 18px;margin:18px 0;background:var(--panel);font-size:.94rem}
.note{border-left-color:var(--cyan)}
.warn{border-left-color:var(--amber);background:rgba(245,166,35,.06)}
.tip{border-left-color:var(--green);background:rgba(111,207,151,.06)}
.note b,.warn b,.tip b{font-family:'Space Grotesk',sans-serif;color:var(--white)}
.note>*:last-child,.warn>*:last-child,.tip>*:last-child{margin-bottom:0}
table.kv{font-family:'IBM Plex Mono',monospace;font-size:.82rem}
table.kv td{padding:8px 12px;border-bottom:1px solid var(--line)}
table.kv td:first-child{color:var(--cyan);white-space:nowrap}
.pill{display:inline-block;font-family:'IBM Plex Mono',monospace;font-size:.72rem;padding:2px 9px;border-radius:20px;border:1px solid var(--line-strong);letter-spacing:.04em}
.pill.ok{border-color:rgba(111,207,151,.5);color:var(--green)}
.pill.warn{border-color:rgba(245,166,35,.5);color:var(--amber)}
.pill.block{border-color:rgba(248,113,113,.5);color:#F87171}
.flow{font-family:'IBM Plex Mono',monospace;font-size:.8rem;line-height:1.55;color:var(--text);background:#08111F;border:1px solid var(--line);border-radius:10px;padding:16px 18px;overflow-x:auto;margin:16px 0 22px;white-space:pre}
.flow .arrow{color:var(--cyan)}
.flow .hl{color:var(--amber)}
.flow .c{color:#63799b}
.series{border:1px solid var(--line);border-radius:10px;padding:16px 20px;margin:18px 0 24px;background:var(--panel)}
.series h4{margin:0 0 10px;font-size:.72rem;font-family:'IBM Plex Mono',monospace;letter-spacing:.1em;text-transform:uppercase;color:var(--amber)}
.series ol{margin:0;padding-left:20px;font-size:.9rem}
.series li{margin-bottom:5px;color:var(--text)}
.series li.here{color:var(--cyan);font-weight:600}
.series a{text-decoration:none;color:var(--text)}
.series a:hover{color:var(--cyan)}
pre .c{color:#63799b}
pre .k{color:#C792EA}
pre .s{color:#A5E844}
pre .v{color:#FFCB6B}
pre .hl{color:var(--amber)}
.crumb{font-family:'IBM Plex Mono',monospace;font-size:.78rem;color:var(--muted);margin-bottom:18px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--cyan)}
.pagenav{display:flex;justify-content:space-between;gap:16px;margin-top:50px;padding-top:20px;border-top:1px solid var(--line)}
.pagenav a{flex:1;border:1px solid var(--line);border-radius:10px;padding:14px 16px;font-size:.85rem;text-decoration:none}
.pagenav a:hover{border-color:var(--line-strong);background:var(--panel)}
.pagenav .dir{display:block;color:var(--muted);font-family:'IBM Plex Mono',monospace;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:4px}
.pagenav .ttl{color:var(--text);font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:.9rem}
.pagenav .next{text-align:right}

/* ============================================================
   ELASTICSEARCH SERIES COMPONENTS
   ============================================================ */
.info-panel{border:1px solid var(--line-strong);border-left:3px solid var(--cyan);border-radius:8px;
  padding:14px 18px;margin:18px 0;background:var(--panel);font-size:.94rem}
.info-panel strong{font-family:'Space Grotesk',sans-serif;color:var(--white)}
.info-panel>*:last-child{margin-bottom:0}
table.meta-table{font-family:'IBM Plex Mono',monospace;font-size:.82rem;margin:16px 0 22px}
table.meta-table td{padding:8px 12px;border-bottom:1px solid var(--line);vertical-align:top}
table.meta-table td:first-child{color:var(--cyan);white-space:nowrap;width:110px}
.skill-tag{display:inline-block;font-family:'IBM Plex Mono',monospace;font-size:.72rem;color:var(--cyan);
  background:var(--cyan-soft);border:1px solid var(--line);padding:4px 11px;border-radius:12px;margin:2px 4px 2px 0}
.seq-num{display:inline-block;background:var(--cyan);color:#062033;border-radius:50%;width:24px;height:24px;
  text-align:center;line-height:24px;font-size:.78rem;font-weight:700;margin-right:8px;font-family:'IBM Plex Mono',monospace}