/* ================================================================
   SDNSpot — Main CSS  |  Light default + Dark toggle
   ================================================================ */
:root {
  --bg:#f7f9f8;--bg2:#ffffff;--bg3:#eef3f1;--card:#ffffff;--border:#dde8e4;--border2:#c4d8d2;
  --t1:#0c1e1a;--t2:#3a524d;--t3:#7a9490;
  --accent:#00a87a;--accent2:#007d5c;--alight:#e4f5ef;
  --ablue:#1a6b8a;--aorange:#bf6020;--apurple:#6b4faa;--ared:#bf3a2c;
  --mono:'JetBrains Mono',monospace;--display:'Syne',sans-serif;--sans:'DM Sans',sans-serif;
  --r:8px;--rl:14px;--nav-h:64px;--wrap:1140px;--prose:780px;--tr:0.2s ease;
  --sh:0 1px 4px rgba(0,0,0,.05),0 4px 16px rgba(0,0,0,.06);
  --shm:0 4px 20px rgba(0,0,0,.09);--shl:0 8px 40px rgba(0,0,0,.11);
  --nav-bg:rgba(247,249,248,.95);--grid-c:rgba(0,168,122,.07);
  --code-bg:#f2f7f5;--code-br:#cde3db;
}
[data-theme="dark"] {
  --bg:#0d1117;--bg2:#161b22;--bg3:#1c2128;--card:#21262d;--border:#30363d;--border2:#3d444d;
  --t1:#e6edf3;--t2:#8b949e;--t3:#6e7681;
  --accent:#00d4aa;--accent2:#00a887;--alight:rgba(0,212,170,.09);
  --ablue:#58a6ff;--aorange:#f0883e;--apurple:#bc8cff;--ared:#ff7b72;
  --sh:0 1px 4px rgba(0,0,0,.4),0 4px 16px rgba(0,0,0,.3);
  --shm:0 4px 24px rgba(0,0,0,.45);--shl:0 8px 32px rgba(0,0,0,.55);
  --nav-bg:rgba(13,17,23,.96);--grid-c:rgba(0,212,170,.04);
  --code-bg:#0d1117;--code-br:#30363d;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--sans);background:var(--bg);color:var(--t1);line-height:1.7;min-height:100vh;-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--accent2)}
ul{list-style:none}

/* NAV */
.site-header{position:fixed;top:0;left:0;right:0;height:var(--nav-h);background:var(--nav-bg);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);z-index:1000;transition:background .3s,border-color .3s}
.nav-container{max-width:var(--wrap);margin:0 auto;padding:0 1.5rem;height:100%;display:flex;align-items:center;gap:1rem}
.nav-logo{font-family:var(--mono);font-size:1.05rem;font-weight:600;color:var(--t1);white-space:nowrap;flex-shrink:0}
.logo-bracket{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:.15rem;margin-left:auto}
.nav-links>li>a{color:var(--t2);font-size:.875rem;font-weight:500;padding:.4rem .8rem;border-radius:var(--r);transition:all var(--tr)}
.nav-links>li>a:hover,.nav-links>li>a.active{color:var(--accent);background:var(--alight)}
.nav-dropdown{position:relative}
.dropdown-trigger i{font-size:.65rem;margin-left:3px;transition:transform var(--tr)}
.nav-dropdown:hover .dropdown-trigger i{transform:rotate(180deg)}
.dropdown-menu{display:none;position:absolute;top:calc(100% + 8px);right:0;background:var(--bg2);border:1px solid var(--border);border-radius:var(--rl);padding:.5rem;min-width:215px;box-shadow:var(--shl);z-index:200}
.nav-dropdown:hover .dropdown-menu,.nav-dropdown:focus-within .dropdown-menu{display:block}
.dropdown-menu li a{display:flex;align-items:center;gap:.6rem;padding:.5rem .75rem;border-radius:var(--r);color:var(--t2);font-size:.875rem;transition:all var(--tr)}
.dropdown-menu li a:hover{background:var(--alight);color:var(--accent)}
.dropdown-menu li a i{width:16px;color:var(--accent);font-size:.85rem}
.nav-right{display:flex;align-items:center;gap:.5rem;margin-left:.5rem}
.theme-toggle{width:38px;height:38px;border-radius:50%;border:1px solid var(--border);background:var(--card);color:var(--t2);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.9rem;transition:all var(--tr);flex-shrink:0}
.theme-toggle:hover{border-color:var(--accent);color:var(--accent);background:var(--alight)}
.icon-sun{display:block}.icon-moon{display:none}
[data-theme="dark"] .icon-sun{display:none}[data-theme="dark"] .icon-moon{display:block}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:.4rem}
.nav-toggle span{width:22px;height:2px;background:var(--t1);border-radius:2px;transition:all var(--tr);display:block}

/* LAYOUT */
.wrap{max-width:var(--wrap);margin:0 auto}
.section{padding:5rem 1.5rem}
.sec-head{margin-bottom:2.5rem}
.sec-label{font-family:var(--mono);font-size:.72rem;font-weight:600;color:var(--accent);text-transform:uppercase;letter-spacing:.12em;display:block;margin-bottom:.4rem}
.sec-head h2{font-family:var(--display);font-size:clamp(1.5rem,3vw,2rem);font-weight:700;margin-bottom:.3rem}
.sec-sub{color:var(--t3);font-size:.95rem}
.view-all{color:var(--accent);font-size:.875rem;font-weight:600}

/* HERO */
.hero{position:relative;min-height:90vh;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden;padding:6rem 1.5rem 4rem}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(var(--grid-c) 1px,transparent 1px),linear-gradient(90deg,var(--grid-c) 1px,transparent 1px);background-size:48px 48px}
.hero-glow{position:absolute;top:-20%;left:50%;transform:translateX(-50%);width:70vw;height:60vh;background:radial-gradient(ellipse,rgba(0,168,122,.09) 0%,transparent 65%)}
[data-theme="dark"] .hero-glow{background:radial-gradient(ellipse,rgba(0,212,170,.07) 0%,transparent 65%)}
.hero-content{position:relative;max-width:700px;margin:0 auto}
.hero-pill{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--mono);font-size:.78rem;color:var(--accent);background:var(--alight);border:1px solid rgba(0,168,122,.25);padding:.35rem .9rem;border-radius:100px;margin-bottom:1.75rem}
[data-theme="dark"] .hero-pill{border-color:rgba(0,212,170,.2)}
.pulse-dot{width:7px;height:7px;background:var(--accent);border-radius:50%;animation:pulse 2s infinite;display:inline-block}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(1.4)}}
.hero-title{font-family:var(--mono);font-size:clamp(2rem,6vw,4rem);font-weight:600;line-height:1.2;letter-spacing:-.02em;margin-bottom:1.5rem;color:var(--t1)}
.accent{color:var(--accent)}
.cursor{display:inline-block;width:3px;height:.85em;background:var(--accent);margin-left:2px;vertical-align:middle;animation:blink 1.1s step-end infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
.hero-sub{font-size:1.05rem;color:var(--t2);max-width:560px;line-height:1.8;margin:0 auto 2.25rem}
.hero-cta{display:flex;gap:1rem;flex-wrap:wrap;justify-content:center;margin-bottom:3.5rem}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.7rem 1.5rem;border-radius:var(--r);font-weight:600;font-size:.9rem;cursor:pointer;transition:all var(--tr);border:1.5px solid transparent}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 2px 14px rgba(0,168,122,.25)}
.btn-primary:hover{background:var(--accent2);color:#fff;border-color:var(--accent2);box-shadow:0 4px 20px rgba(0,168,122,.35);transform:translateY(-1px)}
.btn-outline{background:transparent;color:var(--t1);border-color:var(--border2)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);background:var(--alight);transform:translateY(-1px)}
.hero-stats{display:flex;gap:3rem;justify-content:center}
.stat{display:flex;flex-direction:column;align-items:center}
.stat-n{font-family:var(--mono);font-size:2rem;font-weight:600;color:var(--accent);line-height:1}
.stat-l{font-size:.75rem;color:var(--t3);text-transform:uppercase;letter-spacing:.1em;margin-top:4px}

/* TOPICS */
.topics-section{background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.topics-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem}
.topic-card{display:flex;flex-direction:column;padding:1.4rem 1.25rem;background:var(--card);border:1px solid var(--border);border-radius:var(--rl);color:var(--t1);transition:all var(--tr);gap:.7rem}
.topic-card:hover{border-color:var(--accent);box-shadow:var(--shm);transform:translateY(-2px);color:var(--t1)}
.tc-top{display:flex;align-items:center;justify-content:space-between}
.tc-icon{width:40px;height:40px;background:var(--alight);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.1rem;color:var(--accent);transition:background var(--tr),color var(--tr)}
.topic-card:hover .tc-icon{background:var(--accent);color:#fff}
.ai-icon{background:rgba(107,79,170,.1);color:var(--apurple)}
.topic-card:hover .ai-icon{background:var(--apurple);color:#fff}
.tc-arr{color:var(--t3);font-size:.7rem;transition:transform var(--tr),color var(--tr)}
.topic-card:hover .tc-arr{transform:translate(2px,-2px);color:var(--accent)}
.tc-name{font-weight:600;font-size:.925rem}
.tc-desc{font-size:.8rem;color:var(--t3);line-height:1.5}
.tc-tags{display:flex;flex-wrap:wrap;gap:.35rem}
.tc-tags span{font-family:var(--mono);font-size:.67rem;background:var(--bg3);color:var(--t2);border:1px solid var(--border);border-radius:4px;padding:.1rem .45rem}

/* POST CARDS */
.posts-section{background:var(--bg)}
.posts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem}
.post-card{background:var(--card);border:1px solid var(--border);border-radius:var(--rl);padding:1.5rem;display:flex;flex-direction:column;transition:all var(--tr)}
.post-card:hover{border-color:var(--accent);box-shadow:var(--shm);transform:translateY(-2px)}
.pc-meta{display:flex;align-items:center;justify-content:space-between;margin-bottom:.85rem}
.pc-date{font-size:.78rem;color:var(--t3);font-family:var(--mono)}
.pc-title{font-family:var(--display);font-size:1.05rem;font-weight:700;line-height:1.4;margin-bottom:.75rem}
.pc-title a{color:var(--t1)}.pc-title a:hover{color:var(--accent)}
.pc-excerpt{color:var(--t2);font-size:.875rem;flex:1;margin-bottom:1.25rem;line-height:1.65}
.pc-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto}
.pc-time{font-size:.78rem;color:var(--t3)}
.read-more{font-size:.85rem;color:var(--accent);font-weight:600}

/* BADGES */
.badge{display:inline-block;padding:.2rem .65rem;border-radius:100px;font-family:var(--mono);font-size:.68rem;font-weight:600;text-transform:lowercase}
.badge-python{background:rgba(55,118,171,.1);color:#2a7ab5;border:1px solid rgba(55,118,171,.2)}
.badge-netmiko{background:rgba(0,168,122,.1);color:#00a87a;border:1px solid rgba(0,168,122,.2)}
.badge-ansible{background:rgba(200,0,0,.08);color:#c0392b;border:1px solid rgba(200,0,0,.15)}
.badge-jinja2{background:rgba(176,30,61,.08);color:#a0253e;border:1px solid rgba(176,30,61,.15)}
.badge-docker{background:rgba(36,150,237,.1);color:#1a7ec8;border:1px solid rgba(36,150,237,.2)}
.badge-kubernetes{background:rgba(50,108,229,.1);color:#2a5cc0;border:1px solid rgba(50,108,229,.2)}
.badge-terraform{background:rgba(95,43,165,.1);color:#6b3da0;border:1px solid rgba(95,43,165,.2)}
.badge-yang-netconf{background:rgba(26,107,138,.1);color:#1a6b8a;border:1px solid rgba(26,107,138,.2)}
.badge-ai-ml{background:rgba(107,79,170,.1);color:#6b4faa;border:1px solid rgba(107,79,170,.2)}
.badge-mcp{background:rgba(192,98,42,.1);color:#bf6020;border:1px solid rgba(192,98,42,.2)}
.badge-ccie-journey{background:rgba(192,57,43,.1);color:#bf3a2c;border:1px solid rgba(192,57,43,.2)}
.badge-git{background:rgba(240,80,50,.1);color:#d0401a;border:1px solid rgba(240,80,50,.2)}
.badge-series{background:rgba(26,107,138,.08);color:#1a6b8a;border:1px solid rgba(26,107,138,.2)}
[data-theme="dark"] .badge-python{background:rgba(55,118,171,.2);color:#4d9de0}
[data-theme="dark"] .badge-netmiko{background:rgba(0,212,170,.15);color:#00d4aa}
[data-theme="dark"] .badge-ansible{background:rgba(238,0,0,.12);color:#ee5555}
[data-theme="dark"] .badge-docker{background:rgba(36,150,237,.15);color:#2496ed}
[data-theme="dark"] .badge-kubernetes{background:rgba(50,108,229,.15);color:#326ce5}
[data-theme="dark"] .badge-ccie-journey{background:rgba(255,123,114,.15);color:#ff7b72}

/* CCIE BANNER */
.ccie-banner{background:var(--bg2);border-top:1px solid var(--border)}
.ccie-card{display:grid;grid-template-columns:auto 1fr auto;gap:2.5rem;align-items:center;background:linear-gradient(135deg,var(--card) 0%,var(--alight) 100%);border:1px solid rgba(0,168,122,.2);border-radius:var(--rl);padding:2.5rem;box-shadow:var(--sh)}
[data-theme="dark"] .ccie-card{background:linear-gradient(135deg,var(--card) 0%,rgba(0,212,170,.04) 100%)}
.ccie-icon{width:64px;height:64px;background:var(--alight);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.75rem;color:var(--accent);flex-shrink:0;border:2px solid rgba(0,168,122,.2)}
.ccie-body h3{font-family:var(--display);font-size:1.3rem;font-weight:700;margin-bottom:.5rem}
.ccie-body p{color:var(--t2);max-width:500px;font-size:.95rem}
.ccie-body .btn{margin-top:1.25rem}
.ccie-progress{min-width:200px}
.prog-label{font-size:.75rem;color:var(--t3);text-transform:uppercase;letter-spacing:.1em;margin-bottom:.6rem;font-family:var(--mono)}
.prog-track{height:5px;background:var(--bg3);border-radius:3px;margin-bottom:.85rem;overflow:hidden;border:1px solid var(--border)}
.prog-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent2));border-radius:3px}
.prog-items{display:flex;flex-direction:column;gap:.3rem}
.prog-items span{font-size:.8rem;color:var(--t2);font-family:var(--mono)}

/* FOOTER */
.site-footer{background:var(--bg2);border-top:1px solid var(--border);padding:3.5rem 1.5rem 2rem}
.footer-inner{max-width:var(--wrap);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:3rem;padding-bottom:2rem;border-bottom:1px solid var(--border);margin-bottom:1.5rem}
.footer-brand .nav-logo{display:inline-block;margin-bottom:.75rem}
.footer-brand p{color:var(--t3);font-size:.875rem;line-height:1.65}
.footer-col h4{font-size:.75rem;text-transform:uppercase;letter-spacing:.1em;color:var(--t3);margin-bottom:1rem;font-family:var(--mono)}
.footer-col ul{display:flex;flex-direction:column;gap:.5rem}
.footer-col a{color:var(--t2);font-size:.875rem;display:flex;align-items:center;gap:.4rem}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{max-width:var(--wrap);margin:0 auto;text-align:center}
.footer-bottom p{color:var(--t3);font-size:.78rem;font-family:var(--mono)}

/* POST PROSE */
.post{max-width:var(--prose);margin:0 auto;padding:3rem 1.5rem 5rem}
.post-header{margin-bottom:2rem}
.post-badges{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:1rem}
.post-title{font-family:var(--display);font-size:clamp(1.75rem,4vw,2.5rem);font-weight:800;line-height:1.2;margin-bottom:1rem}
.post-meta{display:flex;gap:1.25rem;flex-wrap:wrap;color:var(--t3);font-size:.85rem;margin-bottom:.75rem}
.post-meta span{display:flex;align-items:center;gap:.4rem}
.post-tags{display:flex;flex-wrap:wrap;gap:.5rem}
.tag{font-family:var(--mono);font-size:.78rem;color:var(--t3);background:var(--bg3);border:1px solid var(--border);padding:.2rem .55rem;border-radius:100px}
.toc-box{background:var(--bg2);border:1px solid var(--border);border-radius:var(--r);padding:1rem 1.25rem;margin:2rem 0;font-size:.875rem}
.toc-head{display:flex;align-items:center;justify-content:space-between;font-weight:600;font-family:var(--mono);color:var(--accent);margin-bottom:.75rem}
.toc-head button{background:none;border:none;cursor:pointer;color:var(--t3)}
#toc-body a{color:var(--t2);display:block;padding:.2rem 0}
#toc-body a:hover{color:var(--accent)}
#toc-body .h3{padding-left:1rem;font-size:.8rem}
.post-content h1,.post-content h2,.post-content h3,.post-content h4{font-family:var(--display);font-weight:700;margin:2.5rem 0 1rem;line-height:1.3;scroll-margin-top:calc(var(--nav-h) + 1rem);color:var(--t1)}
.post-content h2{font-size:1.5rem;padding-bottom:.5rem;border-bottom:1px solid var(--border)}
.post-content h3{font-size:1.2rem}
.post-content p{margin-bottom:1.25rem;color:var(--t2)}
.post-content strong{color:var(--t1)}
.post-content a{color:var(--accent)}
.post-content ul,.post-content ol{margin:1rem 0 1.25rem 1.5rem}
.post-content li{margin-bottom:.4rem;color:var(--t2)}
.post-content ul li{list-style:disc}.post-content ol li{list-style:decimal}
.post-content blockquote{border-left:3px solid var(--accent);padding:.75rem 1.25rem;background:var(--alight);border-radius:0 var(--r) var(--r) 0;margin:1.5rem 0;font-style:italic;color:var(--t2)}
.post-content table{width:100%;border-collapse:collapse;margin:1.5rem 0;font-size:.9rem;overflow-x:auto;display:block}
.post-content th{background:var(--bg3);padding:.6rem 1rem;text-align:left;font-family:var(--mono);font-size:.8rem;color:var(--accent);border:1px solid var(--border)}
.post-content td{padding:.6rem 1rem;border:1px solid var(--border);color:var(--t2)}
.post-content tr:nth-child(even) td{background:var(--bg3)}
.post-content hr{border:none;border-top:1px solid var(--border);margin:2.5rem 0}
.post-content code{font-family:var(--mono);font-size:.84em;background:var(--code-bg);border:1px solid var(--code-br);padding:.15em .4em;border-radius:4px;color:var(--aorange)}
.post-content pre{background:var(--code-bg);border:1px solid var(--code-br);border-radius:var(--r);padding:1.25rem;overflow-x:auto;margin:1.5rem 0;position:relative}
.post-content pre code{background:none;border:none;padding:0;color:var(--t1);font-size:.875rem}
.highlight .k,.highlight .kn,.highlight .kd{color:#c0392b}
.highlight .s,.highlight .s1,.highlight .s2{color:#27ae60}
.highlight .nb{color:#e67e22}.highlight .c1,.highlight .cm{color:var(--t3);font-style:italic}
.highlight .mi{color:#2980b9}.highlight .nf,.highlight .nd{color:#8e44ad}
[data-theme="dark"] .highlight .k,[data-theme="dark"] .highlight .kn,[data-theme="dark"] .highlight .kd{color:#ff7b72}
[data-theme="dark"] .highlight .s,[data-theme="dark"] .highlight .s1,[data-theme="dark"] .highlight .s2{color:#a5d6ff}
[data-theme="dark"] .highlight .nb{color:#ffa657}[data-theme="dark"] .highlight .mi{color:#79c0ff}
[data-theme="dark"] .highlight .nf,[data-theme="dark"] .highlight .nd{color:#d2a8ff}
.post-foot{margin-top:3rem;padding-top:2rem;border-top:1px solid var(--border)}
.share-row{display:flex;align-items:center;gap:.75rem;margin-bottom:2rem;flex-wrap:wrap}
.share-row span{color:var(--t3);font-size:.9rem}
.share-btn{display:inline-flex;align-items:center;gap:.4rem;padding:.4rem .9rem;border-radius:var(--r);font-size:.85rem;font-weight:600}
.share-btn.tw{background:rgba(29,155,240,.08);border:1px solid rgba(29,155,240,.25);color:#1d9bf0}
.share-btn.li{background:rgba(10,102,194,.08);border:1px solid rgba(10,102,194,.25);color:#0a66c2}
.post-nav{display:flex;justify-content:space-between;gap:1rem}
.post-nav-link{display:flex;flex-direction:column;gap:.25rem;padding:1rem;background:var(--card);border:1px solid var(--border);border-radius:var(--r);flex:1;color:var(--t1);transition:all var(--tr)}
.post-nav-link:hover{border-color:var(--accent);color:var(--t1);box-shadow:var(--sh)}
.nav-dir{font-size:.78rem;color:var(--accent);font-weight:600}.nav-ttl{font-size:.9rem;font-weight:500}
.post-nav-link.next{text-align:right;align-items:flex-end}

/* PAGE */
.page-wrap{max-width:var(--prose);margin:0 auto;padding:3rem 1.5rem 5rem}
.page-wrap h1{font-family:var(--display);font-size:2.2rem;font-weight:800;margin-bottom:.5rem}
.page-subtitle{color:var(--t3);font-size:.875rem;font-family:var(--mono);margin-bottom:2.5rem}
.page-wrap h2{font-family:var(--display);font-size:1.3rem;font-weight:700;margin:2rem 0 .75rem;padding-bottom:.5rem;border-bottom:1px solid var(--border)}
.page-wrap p{color:var(--t2);margin-bottom:1rem}
.skill-grid{display:flex;flex-wrap:wrap;gap:.75rem;margin:1rem 0}
.skill-chip{display:flex;align-items:center;gap:.5rem;background:var(--card);border:1px solid var(--border);padding:.4rem .9rem;border-radius:var(--r);font-size:.875rem;color:var(--t2)}
.skill-chip i{color:var(--accent)}
.connect-row{display:flex;gap:.75rem;flex-wrap:wrap;margin-top:1rem}
.connect-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1.1rem;background:var(--card);border:1px solid var(--border);border-radius:var(--r);font-size:.9rem;font-weight:500;color:var(--t1);transition:all var(--tr)}
.connect-btn:hover{border-color:var(--accent);color:var(--accent)}

/* RESPONSIVE */
@media(max-width:900px){.ccie-card{grid-template-columns:1fr;text-align:center}.ccie-icon{margin:0 auto}.ccie-progress{width:100%}}
@media(max-width:768px){
  .nav-links{display:none;flex-direction:column;position:fixed;top:var(--nav-h);left:0;right:0;background:var(--bg2);border-bottom:1px solid var(--border);padding:1rem;gap:.25rem;max-height:calc(100vh - var(--nav-h));overflow-y:auto}
  .nav-links.open{display:flex}
  .nav-toggle{display:flex}
  .nav-dropdown .dropdown-menu{position:static;box-shadow:none;border:none;border-left:2px solid var(--border);border-radius:0;margin-left:1rem;background:transparent}
  .footer-inner{grid-template-columns:1fr 1fr;gap:2rem}
  .posts-grid{grid-template-columns:1fr}
  .hero-stats{gap:2rem}
  .topics-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
}
@media(max-width:480px){.footer-inner{grid-template-columns:1fr}.hero-cta{flex-direction:column;align-items:center}.hero-title{font-size:1.9rem}}