:root{
  --bg:#0d1117; --surface:#161b22; --surface-2:#1b2230; --elevate:#20283a;
  --text:#e6edf3; --muted:#9aa4b2; --border:#242c3a;
  --accent:#6ea8fe; --accent-2:#a78bfa; --ring:rgba(110,168,254,.35);
  --radius:16px; --maxw:760px; --shadow:0 10px 30px -12px rgba(0,0,0,.55);
}
[data-theme="light"]{
  --bg:#f7f9fc; --surface:#ffffff; --surface-2:#eef2f8; --elevate:#ffffff;
  --text:#1a2230; --muted:#5b6675; --border:#e4e9f1;
  --accent:#2f6feb; --accent-2:#7c3aed; --ring:rgba(47,111,235,.25);
  --shadow:0 10px 30px -14px rgba(20,30,55,.25);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:'Inter',system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  line-height:1.7; -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}
::selection{background:var(--accent); color:#fff}
.container{width:100%; max-width:var(--maxw); margin:0 auto; padding:0 20px}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--accent); outline-offset:2px; border-radius:6px}

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:40;
  background:color-mix(in srgb,var(--bg) 82%,transparent);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex; align-items:center; gap:14px; height:64px}
.brand{font-weight:800; font-size:1.15rem; letter-spacing:-.02em; color:var(--text)}
.brand:hover{color:var(--accent); text-decoration:none}
.header-tools{display:flex; align-items:center; gap:14px; margin-left:auto}
.nav{display:flex; align-items:center; gap:16px}
.nav a{color:var(--muted); font-size:.95rem; font-weight:500}
.nav a:hover{color:var(--text); text-decoration:none}
.lang-switch{display:inline-flex; gap:6px}
.lang-switch a{color:var(--muted); font-size:.72rem; font-weight:600; letter-spacing:.03em; border:1px solid var(--border); padding:3px 8px; border-radius:999px}
.lang-switch a:hover{color:var(--text); border-color:var(--accent); text-decoration:none}
.icon-btn{
  display:inline-flex; align-items:center; justify-content:center;
  width:38px; height:38px; border:1px solid var(--border); background:var(--surface-2);
  color:var(--text); border-radius:10px; cursor:pointer; transition:.15s;
}
.icon-btn:hover{border-color:var(--accent); color:var(--accent)}
[data-theme="dark"] .ic-moon{display:none}
[data-theme="light"] .ic-sun{display:none}

/* hamburger */
.menu-toggle{display:none; flex-direction:column; gap:4px}
.menu-toggle span{width:18px; height:2px; background:currentColor; border-radius:2px; transition:.2s}
.menu-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- search ---------- */
.search{position:relative; width:230px}
.search input{
  width:100%; height:38px; padding:0 14px; border-radius:10px;
  border:1px solid var(--border); background:var(--surface-2); color:var(--text);
  font:inherit; font-size:.9rem; transition:.15s;
}
.search input::placeholder{color:var(--muted)}
.search input:focus{outline:none; border-color:var(--accent); box-shadow:0 0 0 3px var(--ring); background:var(--surface)}
.search-results{
  display:none; position:absolute; top:calc(100% + 8px); right:0; width:340px; max-width:86vw;
  max-height:60vh; overflow:auto; background:var(--surface); border:1px solid var(--border);
  border-radius:12px; box-shadow:var(--shadow); padding:6px;
}
.search-results.open{display:block}
.search-item{display:block; padding:10px 12px; border-radius:8px; color:var(--text)}
.search-item:hover{background:var(--surface-2); text-decoration:none}
.si-title{display:block; font-weight:600; font-size:.92rem}
.si-sum{display:block; color:var(--muted); font-size:.8rem; margin-top:2px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.search-empty{padding:12px; color:var(--muted); font-size:.9rem; text-align:center}

/* ---------- hero ---------- */
.hero{padding:64px 0 30px; text-align:center}
.hero h1{
  margin:0 0 10px; font-size:2.7rem; font-weight:800; letter-spacing:-.03em; line-height:1.1;
  background:linear-gradient(100deg,var(--accent),var(--accent-2)); -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero .subtitle{margin:0; color:var(--text); font-weight:600; opacity:.9}
.hero .lead{margin:12px auto 0; max-width:52ch; color:var(--muted)}
.big404{font-size:4.5rem}

/* ---------- listing ---------- */
.section-title{font-size:1.35rem; font-weight:700; letter-spacing:-.01em; margin:26px 0 6px; padding-bottom:12px; border-bottom:1px solid var(--border)}
.post-list{padding:14px 0 56px}
.post-card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius);
  padding:24px; margin:18px 0; transition:transform .16s ease, border-color .16s ease, box-shadow .16s ease;
}
.post-card:hover{transform:translateY(-3px); border-color:var(--accent); box-shadow:var(--shadow)}
.post-card h3{margin:0 0 8px; font-size:1.3rem; font-weight:700; letter-spacing:-.01em; line-height:1.3}
.post-card h3 a{color:var(--text)}
.post-card h3 a:hover{color:var(--accent); text-decoration:none}
.excerpt{margin:8px 0 16px; color:var(--muted)}
.meta{display:flex; align-items:center; gap:8px; color:var(--muted); font-size:.85rem}
.meta .dot{opacity:.5}
.card-foot{display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap}
.tags{display:flex; flex-wrap:wrap; gap:6px}
.tag{
  font-size:.74rem; font-weight:600; color:var(--accent);
  background:color-mix(in srgb,var(--accent) 12%,transparent);
  border:1px solid color-mix(in srgb,var(--accent) 22%,transparent);
  padding:2px 9px; border-radius:999px;
}
.read-more{font-size:.9rem; font-weight:600; white-space:nowrap}

/* ---------- single post ---------- */
.post{padding:40px 0 60px}
.post-head{margin-bottom:26px}
.post-head h1{margin:0 0 12px; font-size:2.1rem; font-weight:800; letter-spacing:-.02em; line-height:1.2}
.post-head .meta{margin-bottom:12px}
.content{font-size:1.03rem}
.content>*+*{margin-top:1.05em}
.content h2{margin-top:1.8em; font-size:1.5rem; padding-bottom:6px; border-bottom:1px solid var(--border)}
.content h3{margin-top:1.5em; font-size:1.2rem}
.content a{text-decoration:underline; text-underline-offset:3px}
.content img{max-width:100%; height:auto; border-radius:12px; border:1px solid var(--border)}
.content blockquote{margin:1.4em 0; padding:.6em 1.2em; border-left:3px solid var(--accent); background:var(--surface); color:var(--muted); border-radius:0 10px 10px 0}
.content code{font-family:"SFMono-Regular",Consolas,Menlo,monospace; font-size:.88em; background:var(--surface-2); padding:.15em .45em; border-radius:6px}
.content pre{padding:18px 20px; border-radius:12px; overflow-x:auto; border:1px solid var(--border); font-size:.86rem; line-height:1.55}
.content pre code{background:none; padding:0; font-size:inherit}
.content ul,.content ol{padding-left:1.3em}
.content li+li{margin-top:.3em}
.content table{border-collapse:collapse; width:100%; font-size:.95rem}
.content th,.content td{border:1px solid var(--border); padding:8px 12px; text-align:left}
.content th{background:var(--surface-2)}
.lead-block{color:var(--muted); margin-bottom:8px}

/* ---------- buttons / footer ---------- */
.btn{display:inline-block; background:var(--accent); color:#fff; padding:10px 18px; border-radius:10px; font-weight:600}
.btn:hover{filter:brightness(1.08); text-decoration:none}
.site-footer{border-top:1px solid var(--border); padding:28px 0; margin-top:20px}
.site-footer p{color:var(--muted); font-size:.85rem; text-align:center; margin:0}

/* ---------- responsive ---------- */
@media (max-width:820px){
  .menu-toggle{display:flex}
  .header-tools{
    position:absolute; top:100%; left:0; right:0; margin:0;
    flex-direction:column; align-items:stretch; gap:14px;
    background:var(--surface); border-bottom:1px solid var(--border);
    padding:16px 20px; display:none;
  }
  .header-tools.open{display:flex}
  .search{width:100%}
  .search-results{width:100%; right:auto}
  .nav{flex-direction:column; align-items:flex-start; gap:12px}
  .hero h1{font-size:2.1rem}
}

/* certification badges */
.certs{display:grid; grid-template-columns:repeat(auto-fit,minmax(190px,1fr)); gap:12px; margin:20px 0}
.cert{display:flex; flex-direction:column; padding:14px 16px; background:var(--surface); border:1px solid var(--border); border-left:3px solid var(--accent); border-radius:12px}
.cert-code{font-weight:800; font-size:1.05rem; letter-spacing:-.01em}
.cert-name{font-size:.9rem; margin-top:2px}
.cert-issuer{font-size:.72rem; color:var(--muted); text-transform:uppercase; letter-spacing:.05em; margin-top:6px}
.cert.ms{border-left-color:#2f9bff}
.cert.vmware{border-left-color:#78be20}
.cert.veeam{border-left-color:#00b336}

/* real credential badges (images) */
.badges{display:flex; flex-wrap:wrap; gap:16px; align-items:center; margin:22px 0}
.badges a{display:inline-block; line-height:0}
.badges img{width:104px; height:104px; object-fit:contain; transition:transform .15s ease}
.badges a:hover img{transform:scale(1.06)}
@media (max-width:560px){ .badges img{width:84px; height:84px} }

/* badges v2: imagem + legenda */
.badges{display:flex; flex-wrap:wrap; gap:22px; margin:22px 0; align-items:flex-start}
.badge{display:flex; flex-direction:column; align-items:center; text-align:center; width:118px}
.badge img{width:96px; height:96px; object-fit:contain; transition:transform .15s ease}
.badge:hover img{transform:scale(1.06)}
.badge figcaption{margin-top:8px; font-size:.78rem; line-height:1.3}
.badge .bc{display:block; font-weight:700}
.badge .bn{display:block; color:var(--muted); font-size:.7rem; margin-top:1px}
@media (max-width:560px){ .badge{width:98px} .badge img{width:80px; height:80px} }

/* ---------- Azunkey v8 brand ---------- */
:root{--maxw:1040px;--contentw:760px}
.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.post-list,.post:not(.about-page){max-width:var(--contentw);margin-left:auto;margin-right:auto}
.brand{display:inline-flex;align-items:center;flex:0 0 auto;line-height:0}
.brand-logo{display:block;width:150px;height:auto}
[data-theme="dark"] .brand-logo-light,[data-theme="dark"] .hero-logo-light{display:none}
[data-theme="light"] .brand-logo-dark,[data-theme="light"] .hero-logo-dark{display:none}
.hero{padding-top:68px}
.hero-logo-wrap{display:flex;justify-content:center;margin:0 auto 20px}
.hero-logo{width:min(430px,88vw);height:auto}
.hero .subtitle{font-size:1.05rem;letter-spacing:.01em}
.hero .lead{max-width:64ch}
.btn-secondary{background:transparent;color:var(--text);border:1px solid var(--border)}
.btn-secondary:hover{border-color:var(--accent);color:var(--accent);filter:none}
.text-link{display:inline-flex;align-items:center;gap:8px;font-weight:700}

/* ---------- About page v8.1.0 ---------- */
.about-page{max-width:900px;margin-left:auto;margin-right:auto;padding:42px 0 76px}
.about-page .content{font-size:1rem}
.about-page .content>*+*{margin-top:0}
.about-page .content h1,.about-page .content h2,.about-page .content h3{border:0;padding:0}
.about-page .content p{margin:0;color:var(--muted)}
.about-page .content a{text-decoration:none}
.about-page .content a:hover{text-decoration:none}
.about-label{display:inline-block;color:var(--accent);font-size:.75rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase}
.about-intro{
  display:grid;grid-template-columns:minmax(0,1fr) 170px;gap:44px;align-items:center;
  padding:48px;border:1px solid var(--border);border-radius:22px;
  background:linear-gradient(145deg,var(--surface),var(--surface-2));box-shadow:var(--shadow)
}
.about-intro h1{margin:12px 0 18px;font-size:clamp(2.25rem,5vw,3.5rem);line-height:1.06;letter-spacing:-.045em}
.about-intro-copy>p{max-width:690px;font-size:1.03rem;line-height:1.76}
.about-intro-copy>p+p{margin-top:13px!important}
.about-symbol{display:flex;align-items:center;justify-content:center;aspect-ratio:1;border-radius:22px;background:color-mix(in srgb,var(--accent) 9%,var(--bg));border:1px solid var(--border)}
.about-symbol img{width:72%;height:auto;border:0!important;border-radius:0!important}
[data-theme="dark"] .about-symbol-logo-light{display:none}
[data-theme="light"] .about-symbol-logo-dark{display:none}
.about-block{padding:46px 0;border-bottom:1px solid var(--border)}
.about-block:last-child{border-bottom:0;padding-bottom:0}
.about-block h2{margin:8px 0 10px;font-size:clamp(1.65rem,3vw,2.1rem);line-height:1.2;letter-spacing:-.03em}
.about-note{max-width:680px;line-height:1.7}
.about-page .badges{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:24px 0 0}
.about-page .badge{width:auto;min-height:166px;justify-content:center;padding:18px 10px;margin:0;border:1px solid var(--border);border-radius:15px;background:var(--surface);transition:border-color .15s ease,transform .15s ease}
.about-page .badge:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--accent) 65%,var(--border))}
.about-page .badge img{width:82px;height:82px}
.about-page .badge figcaption{margin-top:10px}
.about-page .badge .bn{font-size:.7rem}
.education-list{display:grid;gap:12px;margin-top:24px}
.education-item{padding:20px 22px;border:1px solid var(--border);border-radius:15px;background:var(--surface)}
.education-heading{display:flex;justify-content:space-between;gap:24px;align-items:flex-start}
.education-item h3{margin:0 0 4px;font-size:1rem;line-height:1.35}
.about-page .education-course{color:var(--text);font-size:.9rem;font-weight:600;line-height:1.5}
.education-date{flex:0 0 auto;color:var(--muted);font-size:.78rem;line-height:1.5;white-space:nowrap}
.about-page .education-item>p{margin-top:10px;max-width:720px;font-size:.9rem;line-height:1.65}
.contact-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:24px}
.contact-link{display:flex;flex-direction:column;gap:2px;min-width:0;padding:15px 16px;border:1px solid var(--border);border-radius:13px;background:var(--surface);transition:border-color .15s ease,transform .15s ease}
.contact-link:hover{transform:translateY(-2px);border-color:var(--accent)}
.contact-link strong{color:var(--text);font-size:.92rem}
.contact-link span{overflow:hidden;color:var(--muted);font-size:.78rem;text-overflow:ellipsis;white-space:nowrap}

@media (max-width:900px){
  .header-inner{gap:10px}
  .brand-logo{width:138px}
  .header-tools{gap:10px}
  .search{width:200px}
  .nav{gap:12px}
}
@media (max-width:820px){
  .brand-logo{width:142px}
  .about-page{padding-top:28px}
  .about-intro{grid-template-columns:1fr;padding:38px 30px}
  .about-symbol{display:none}
}
@media (max-width:640px){
  .hero{padding-top:48px}
  .hero-logo{width:min(340px,90vw)}
  .about-intro{padding:32px 22px;border-radius:18px}
  .about-intro h1{font-size:2.25rem}
  .about-block{padding:38px 0}
  .about-page .badges{grid-template-columns:repeat(2,minmax(0,1fr))}
  .education-heading{display:block}
  .education-date{display:block;margin-top:6px;white-space:normal}
  .contact-links{grid-template-columns:1fr}
}

/* ---------- Learning paths and article structure v8.2.0 ---------- */
.path-kicker,.card-path{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;color:var(--muted);font-size:.76rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase}
.path-kicker{padding:9px 12px;border:1px solid color-mix(in srgb,var(--accent) 30%,var(--border));border-radius:10px;background:color-mix(in srgb,var(--accent) 8%,transparent)}
.path-name,.card-path span:first-child{color:var(--accent)}
.card-path{margin-bottom:10px}
.post-taxonomy{display:flex;flex-direction:column;gap:8px;margin-top:14px}
.categories{display:flex;flex-wrap:wrap;gap:7px}
.category{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;background:var(--surface-2);border:1px solid var(--border);color:var(--text);font-size:.74rem;font-weight:700}

.article-summary{margin:24px 0;padding:20px 22px;border:1px solid var(--border);border-radius:14px;background:linear-gradient(145deg,var(--surface),var(--surface-2))}
.article-summary strong{display:block;margin-bottom:8px;font-size:.95rem}
.article-summary ul{margin:0;padding-left:1.2rem;color:var(--muted)}
.article-summary li+li{margin-top:4px}

.concept-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:22px 0}
.concept-card{display:flex;flex-direction:column;gap:4px;padding:17px 18px;border:1px solid var(--border);border-radius:13px;background:var(--surface)}
.concept-card strong{font-size:.95rem}
.concept-card span{color:var(--muted);font-size:.88rem;line-height:1.55}

.azure-hierarchy{display:grid;gap:10px;margin:22px 0}
.azure-hierarchy>div{position:relative;display:grid;grid-template-columns:34px minmax(0,1fr);column-gap:12px;align-items:center;padding:14px 16px;border:1px solid var(--border);border-radius:12px;background:var(--surface)}
.azure-hierarchy>div:not(:last-child)::after{content:"";position:absolute;left:32px;bottom:-11px;width:1px;height:11px;background:var(--border)}
.azure-hierarchy span{grid-row:1/3;display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:999px;background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent);font-size:.75rem;font-weight:800}
.azure-hierarchy strong{font-size:.94rem}
.azure-hierarchy small{color:var(--muted);font-size:.8rem;line-height:1.45}

.example-structure{margin:22px 0;padding:20px;border:1px solid var(--border);border-radius:14px;background:var(--surface)}
.example-structure>strong{display:block;margin-bottom:14px}
.example-tree{display:grid;grid-template-columns:1fr repeat(3,minmax(0,1fr));gap:8px;align-items:stretch}
.example-tree span{display:flex;align-items:center;justify-content:center;min-height:58px;padding:9px;border:1px solid var(--border);border-radius:10px;background:var(--surface-2);text-align:center;font-size:.79rem;line-height:1.35}
.example-tree span:first-child{grid-column:1/-1;border-color:color-mix(in srgb,var(--accent) 35%,var(--border));color:var(--text);font-weight:700}

.offer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:22px 0}
.offer-card{display:flex;flex-direction:column;align-items:flex-start;min-height:205px;padding:20px;border:1px solid var(--border);border-radius:14px;background:var(--surface)}
.content .offer-card h3{margin:0;font-size:1rem;line-height:1.35}
.offer-card p{margin:8px 0 16px;color:var(--muted);font-size:.88rem;line-height:1.6}
.offer-card a{margin-top:auto;font-size:.83rem;font-weight:700;text-decoration:none}
.offer-card a:hover{text-decoration:underline}

.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:22px 0}
.compare-card{padding:19px;border:1px solid var(--border);border-radius:14px;background:var(--surface)}
.compare-card strong{display:block;margin-bottom:6px}
.compare-card p{margin:0;color:var(--muted);font-size:.89rem;line-height:1.6}

.path-roadmap{margin:36px 0 24px;padding:24px;border:1px solid color-mix(in srgb,var(--accent) 32%,var(--border));border-radius:16px;background:linear-gradient(145deg,var(--surface),var(--surface-2))}
.path-roadmap-head>span{color:var(--accent);font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.content .path-roadmap h2{margin:4px 0 18px;padding:0;border:0;font-size:1.25rem}
.path-roadmap ol{display:grid;gap:8px;margin:0;padding:0;list-style:none}
.path-roadmap li{display:grid;grid-template-columns:38px minmax(0,1fr);gap:10px;align-items:center;padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:color-mix(in srgb,var(--surface) 78%,transparent);color:var(--muted)}
.path-roadmap li span{font-size:.74rem;font-weight:800;color:var(--muted)}
.path-roadmap li strong{font-size:.85rem;font-weight:600;line-height:1.4}
.path-roadmap li.current{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 10%,var(--surface));color:var(--text)}
.path-roadmap li.current span{color:var(--accent)}
.reference-list{margin-top:18px!important;padding:0!important;list-style:none}
.reference-list li{margin:0!important;padding:10px 0;border-bottom:1px solid var(--border)}
.reference-list li:last-child{border-bottom:0}
.reference-list a{font-size:.91rem}

/* full official certification names */
.about-page .badge{min-height:205px;padding:18px 12px}
.about-page .badge .bc{font-size:.75rem;line-height:1.35}
.about-page .badge .bn{margin-top:6px;font-size:.68rem;line-height:1.35}

@media (max-width:700px){
  .concept-grid,.offer-grid,.compare-grid{grid-template-columns:1fr}
  .offer-card{min-height:auto}
  .example-tree{grid-template-columns:1fr}
  .example-tree span:first-child{grid-column:auto}
}
@media (max-width:520px){
  .path-kicker,.card-path{align-items:flex-start;flex-direction:column;gap:3px}
  .article-summary,.path-roadmap{padding:18px}
}
.category:hover{border-color:var(--accent);color:var(--accent);text-decoration:none}


/* ---------- Complete Azure Fundamentals path v8.3.0 ---------- */
.path-roadmap li a{color:inherit;font-size:.85rem;font-weight:600;line-height:1.4;text-decoration:none}
.path-roadmap li a:hover{color:var(--accent);text-decoration:none}
.identity-flow,.portal-map{display:grid;gap:10px;margin:22px 0}
.identity-flow>div,.portal-map>div{display:grid;grid-template-columns:34px minmax(0,1fr);column-gap:12px;align-items:center;padding:15px 16px;border:1px solid var(--border);border-radius:12px;background:var(--surface)}
.identity-flow span,.portal-map span{grid-row:1/3;display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:999px;background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent);font-size:.75rem;font-weight:800}
.identity-flow strong,.portal-map strong{font-size:.92rem}
.identity-flow small,.portal-map small{color:var(--muted);font-size:.8rem;line-height:1.45}
.resource-stack{display:flex;flex-wrap:wrap;gap:8px}
.resource-stack span{padding:9px 12px;border:1px solid var(--border);border-radius:10px;background:var(--surface-2);font-size:.8rem}
.resource-stack span:first-child{width:100%;border-color:color-mix(in srgb,var(--accent) 35%,var(--border));font-weight:700}
.location-model{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:22px 0}
.location-model>div{display:flex;flex-direction:column;gap:5px;padding:18px;border:1px solid var(--border);border-radius:14px;background:var(--surface)}
.location-model span{color:var(--accent);font-size:.72rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase}
.location-model strong{font-size:.95rem}
.location-model small{color:var(--muted);font-size:.8rem;line-height:1.5}
.zone-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:22px 0}
.zone-grid>div{display:flex;flex-direction:column;gap:5px;padding:18px;border:1px solid color-mix(in srgb,var(--accent) 28%,var(--border));border-radius:14px;background:color-mix(in srgb,var(--accent) 7%,var(--surface))}
.zone-grid strong{color:var(--accent)}
.zone-grid span{color:var(--muted);font-size:.82rem;line-height:1.45}
.provider-grid,.status-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:22px 0}
.provider-grid>div,.status-list>div{display:flex;flex-direction:column;gap:6px;padding:17px 18px;border:1px solid var(--border);border-radius:13px;background:var(--surface)}
.provider-grid code{width:max-content;color:var(--accent);font-weight:700}
.provider-grid span,.status-list span{color:var(--muted);font-size:.84rem;line-height:1.5}
.code-pattern{margin:20px 0;padding:16px;border:1px solid var(--border);border-radius:12px;background:var(--code-bg, var(--surface-2));overflow:auto;text-align:center}
.resource-id-example{display:grid;grid-template-columns:max-content minmax(0,1fr);gap:8px 12px;margin:22px 0;padding:18px;border:1px solid var(--border);border-radius:14px;background:var(--surface)}
.resource-id-example span{color:var(--muted);font-size:.78rem;font-weight:700}
.resource-id-example code{overflow-wrap:anywhere;font-size:.8rem}
.attention-box{margin:22px 0;padding:18px 20px;border:1px solid color-mix(in srgb,var(--accent) 38%,var(--border));border-left:4px solid var(--accent);border-radius:12px;background:color-mix(in srgb,var(--accent) 8%,var(--surface))}
.attention-box strong{display:block;margin-bottom:5px}
.attention-box p{margin:0;color:var(--muted)}
.path-navigation{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:34px 0 10px}
.path-nav-link{display:flex;flex-direction:column;gap:5px;min-height:92px;padding:17px 18px;border:1px solid var(--border);border-radius:14px;background:var(--surface);text-decoration:none}
.path-nav-link span{color:var(--muted);font-size:.7rem;font-weight:800;letter-spacing:.07em;text-transform:uppercase}
.path-nav-link strong{color:var(--text);font-size:.88rem;line-height:1.45}
.path-nav-link:hover{border-color:var(--accent);text-decoration:none}
.path-nav-link:hover strong{color:var(--accent)}
.path-nav-next{text-align:right;grid-column:2}
@media (max-width:700px){
  .location-model,.zone-grid,.provider-grid,.status-list,.path-navigation{grid-template-columns:1fr}
  .path-nav-next{grid-column:auto;text-align:left}
  .resource-id-example{grid-template-columns:1fr;gap:3px}
  .resource-id-example code{margin-bottom:8px}
}

/* ---------- Sticky learning path and practical labs v8.4.0 ---------- */
:root{--maxw:1320px;--contentw:780px;--sidebarw:300px}
.learning-layout{
  display:grid;
  grid-template-columns:minmax(250px,var(--sidebarw)) minmax(0,var(--contentw));
  gap:36px;
  align-items:start;
  justify-content:center;
}
.home-learning-layout{padding:4px 0 58px}
.list-learning-layout{padding:30px 0 58px}
.article-learning-layout{padding:40px 0 60px}
.learning-layout .post-list,.learning-layout .post{width:100%;max-width:none;margin:0;padding-top:0}
.learning-layout .section-title{margin-top:0}
.learning-sidebar{position:sticky;top:84px;align-self:start;max-height:calc(100vh - 104px);overflow:auto;scrollbar-width:thin}
.learning-sidebar-toggle{display:none}
.learning-sidebar-panel{
  padding:22px;
  border:1px solid color-mix(in srgb,var(--accent) 34%,var(--border));
  border-radius:16px;
  background:linear-gradient(145deg,var(--surface),var(--surface-2));
  box-shadow:0 14px 34px -24px rgba(0,0,0,.65)
}
.learning-sidebar-head>span{display:block;color:var(--accent);font-size:.7rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase}
.learning-sidebar-head h2{margin:5px 0 17px;font-size:1.12rem;line-height:1.25;letter-spacing:-.02em}
.learning-sidebar-list{display:grid;gap:8px;margin:0;padding:0;list-style:none}
.learning-sidebar-item{border:1px solid var(--border);border-radius:11px;background:color-mix(in srgb,var(--surface) 80%,transparent);overflow:hidden}
.learning-sidebar-item>a{display:grid;grid-template-columns:34px minmax(0,1fr);gap:8px;align-items:center;padding:10px 11px;color:var(--muted);font-size:.8rem;font-weight:650;line-height:1.35;text-decoration:none}
.learning-sidebar-item>a:hover{color:var(--text);background:color-mix(in srgb,var(--accent) 6%,transparent);text-decoration:none}
.learning-step{color:var(--muted);font-size:.7rem;font-weight:850;letter-spacing:.03em}
.learning-sidebar-item.current,.learning-sidebar-item.current-parent{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 9%,var(--surface))}
.learning-sidebar-item.current>a,.learning-sidebar-item.current-parent>a{color:var(--text)}
.learning-sidebar-item.current .learning-step,.learning-sidebar-item.current-parent .learning-step{color:var(--accent)}
.learning-sidebar-sublist{display:grid;gap:2px;margin:0;padding:0 9px 9px 42px;list-style:none}
.learning-sidebar-sublist li a{display:block;padding:6px 8px;border-radius:7px;color:var(--muted);font-size:.75rem;line-height:1.35;text-decoration:none}
.learning-sidebar-sublist li a:hover{color:var(--text);background:var(--surface-2);text-decoration:none}
.learning-sidebar-sublist li.current a{color:var(--accent);font-weight:750;background:color-mix(in srgb,var(--accent) 11%,transparent)}

.practice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:22px 0}
.practice-card{display:flex;flex-direction:column;align-items:flex-start;min-height:190px;padding:20px;border:1px solid var(--border);border-radius:14px;background:var(--surface)}
.practice-card-label{color:var(--accent);font-size:.7rem;font-weight:800;letter-spacing:.07em;text-transform:uppercase}
.content .practice-card h3{margin:7px 0 8px;font-size:1.05rem;line-height:1.35}
.practice-card p{margin:0 0 16px;color:var(--muted);font-size:.87rem;line-height:1.58}
.practice-card a{margin-top:auto;font-size:.84rem;font-weight:750;text-decoration:none}
.practice-card a:hover{text-decoration:underline}
.lab-actions{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}
.lab-actions .btn{font-size:.88rem}
.file-tree{margin:20px 0;padding:17px 19px;border:1px solid var(--border);border-radius:12px;background:var(--surface);font-family:"SFMono-Regular",Consolas,Menlo,monospace;font-size:.82rem;line-height:1.7;white-space:pre;overflow:auto}
.lab-note{margin:22px 0;padding:18px 20px;border:1px solid color-mix(in srgb,var(--accent) 38%,var(--border));border-left:4px solid var(--accent);border-radius:12px;background:color-mix(in srgb,var(--accent) 8%,var(--surface))}
.lab-note strong{display:block;margin-bottom:5px}
.lab-note p{margin:0;color:var(--muted)}

@media (max-width:1040px){
  :root{--maxw:920px}
  .learning-layout{grid-template-columns:minmax(0,var(--contentw));gap:18px}
  .home-learning-layout{padding-top:0}
  .list-learning-layout,.article-learning-layout{padding-top:24px}
  .learning-sidebar{position:relative;top:auto;max-height:none;overflow:visible}
  .learning-sidebar-toggle{
    display:flex;align-items:center;justify-content:space-between;width:100%;padding:13px 15px;
    border:1px solid color-mix(in srgb,var(--accent) 34%,var(--border));border-radius:12px;
    background:var(--surface);color:var(--text);font:inherit;font-size:.86rem;font-weight:750;cursor:pointer
  }
  .learning-sidebar-toggle svg{transition:transform .18s ease}
  .learning-sidebar.is-open .learning-sidebar-toggle svg{transform:rotate(180deg)}
  .learning-sidebar-panel{display:none;margin-top:8px;padding:18px;box-shadow:none}
  .learning-sidebar.is-open .learning-sidebar-panel{display:block}
}
@media (max-width:700px){
  .practice-grid{grid-template-columns:1fr}
  .practice-card{min-height:auto}
  .article-learning-layout{padding-top:18px}
}

/* ---------- Topic menu and path navigation v8.5.0 ---------- */
.learning-sidebar,.topic-sidebar{position:sticky;top:84px;align-self:start;max-height:calc(100vh - 104px);overflow:auto;scrollbar-width:thin}
.topic-sidebar-toggle{display:none}
.topic-sidebar-panel{
  padding:22px;
  border:1px solid color-mix(in srgb,var(--accent) 34%,var(--border));
  border-radius:16px;
  background:linear-gradient(145deg,var(--surface),var(--surface-2));
  box-shadow:0 14px 34px -24px rgba(0,0,0,.65)
}
.topic-menu-head>span{display:block;color:var(--accent);font-size:.7rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase}
.topic-menu-head h2{margin:5px 0 18px;font-size:1.12rem;line-height:1.25;letter-spacing:-.02em}
.topic-menu{display:grid;gap:19px}
.topic-menu-group+ .topic-menu-group{padding-top:18px;border-top:1px solid var(--border)}
.topic-menu-group h3{margin:0 0 7px;color:var(--muted);font-size:.7rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.topic-menu-group ul{display:grid;gap:4px;margin:0;padding:0;list-style:none}
.topic-menu-group a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 10px;border-radius:9px;color:var(--text);font-size:.82rem;font-weight:650;line-height:1.35;text-decoration:none;transition:background .15s ease,color .15s ease,transform .15s ease}
.topic-menu-group a svg{flex:0 0 auto;color:var(--muted);transition:transform .15s ease,color .15s ease}
.topic-menu-group a:hover{background:color-mix(in srgb,var(--accent) 9%,transparent);color:var(--accent);text-decoration:none;transform:translateX(2px)}
.topic-menu-group a:hover svg{color:var(--accent);transform:translateX(2px)}

@media (max-width:1040px){
  .learning-sidebar,.topic-sidebar{position:relative;top:auto;max-height:none;overflow:visible}
  .topic-sidebar-toggle{
    display:flex;align-items:center;justify-content:space-between;width:100%;padding:13px 15px;
    border:1px solid color-mix(in srgb,var(--accent) 34%,var(--border));border-radius:12px;
    background:var(--surface);color:var(--text);font:inherit;font-size:.86rem;font-weight:750;cursor:pointer
  }
  .topic-sidebar-toggle svg{transition:transform .18s ease}
  .topic-sidebar.is-open .topic-sidebar-toggle svg{transform:rotate(180deg)}
  .topic-sidebar-panel{display:none;margin-top:8px;padding:18px;box-shadow:none}
  .topic-sidebar.is-open .topic-sidebar-panel{display:block}
}