:root{
  --primary:#FF4500;--secondary:#1A1A1B;--bg:#1A1A1B;--card-bg:#272729;
  --accent:#FF5722;--text:#D7DADC;--text-muted:#818384;--border:#343536;
  --success:#46D160;--danger:#EA0027;--down:#7193FF;
  --radius:8px;--maxw:1280px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.6}
a{color:var(--text);text-decoration:none}
a:hover{color:var(--primary)}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea,select{font-family:inherit}

/* Header */
.navbar{position:sticky;top:0;z-index:50;background:var(--secondary);border-bottom:1px solid var(--border);height:56px;display:flex;align-items:center;padding:0 16px;gap:16px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:18px;color:var(--primary)}
.logo img{width:32px;height:32px;border-radius:50%}
.search{flex:1;max-width:560px;position:relative}
.search input{width:100%;height:40px;background:var(--bg);border:1px solid var(--border);border-radius:20px;padding:0 16px 0 40px;color:var(--text)}
.search input:focus{outline:none;border-color:var(--primary)}
.search::before{content:"🔍";position:absolute;left:14px;top:10px;opacity:.6}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:8px 16px;border-radius:20px;font-weight:600;font-size:14px;transition:.15s}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:#e03d00;color:#fff}
.btn-outline{border:1px solid var(--border);color:var(--text)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--card-bg)}

/* Layout */
.layout{max-width:var(--maxw);margin:16px auto;display:grid;grid-template-columns:240px 1fr 320px;gap:16px;padding:0 16px}
.sidebar,.aside{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:16px;height:fit-content;position:sticky;top:72px}
.sidebar h3,.aside h3{font-size:13px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:12px}
.sidebar ul,.aside ul{list-style:none}
.sidebar li,.aside li{padding:8px 10px;border-radius:6px;cursor:pointer;font-size:14px;display:flex;align-items:center;gap:8px}
.sidebar li:hover,.aside li:hover{background:rgba(255,255,255,.05)}
.sidebar li.active{background:rgba(255,69,0,.12);color:var(--primary)}

/* Main */
main{min-width:0}
.create-post{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:12px;margin-bottom:16px;display:flex;gap:12px;align-items:center}
.create-post input{flex:1;height:40px;background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:0 14px;color:var(--text)}
.create-post input:focus{outline:none;border-color:var(--primary)}

.post{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;display:flex;transition:.15s}
.post:hover{background:#2D2D2F;border-color:#4a4a4c}
.vote{width:48px;background:rgba(0,0,0,.15);display:flex;flex-direction:column;align-items:center;padding:8px 4px;border-radius:var(--radius) 0 0 var(--radius);gap:4px}
.vote button{font-size:20px;color:var(--text-muted);padding:4px;border-radius:4px;line-height:1}
.vote button:hover{background:rgba(255,255,255,.06)}
.vote .score{font-weight:700;font-size:13px}
.vote .up.active{color:var(--accent)}
.vote .down.active{color:var(--down)}
.vote .up.active~.score{color:var(--accent)}
.vote .down.active~.score{color:var(--down)}
.post-body{flex:1;padding:12px 16px;min-width:0}
.post-meta{font-size:12px;color:var(--text-muted);margin-bottom:6px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.post-meta a{color:var(--text);font-weight:600}
.post-meta .dot{opacity:.5}
.post-title{font-size:17px;font-weight:600;margin:4px 0;line-height:1.3}
.post-title a:hover{color:var(--primary)}
.flair{display:inline-block;background:var(--primary);color:#fff;padding:2px 8px;border-radius:12px;font-size:11px;font-weight:600;margin-right:6px}
.flair.vote{background:#7193FF;width:auto}
.flair.discuss{background:#46D160}
.flair.nsfw{background:var(--danger)}
.flair.essence{background:#FFB000}
.post-excerpt{color:var(--text-muted);font-size:14px;margin:8px 0}
.post-actions{display:flex;gap:12px;font-size:12px;color:var(--text-muted);margin-top:8px}
.post-actions button:hover{color:var(--primary)}
.post-thumb{width:120px;border-radius:6px;margin-left:12px}

/* Aside cards */
.aside-card{margin-bottom:16px}
.trending li{justify-content:space-between}
.trending .rank{color:var(--primary);font-weight:700;margin-right:6px}
.stat{display:flex;justify-content:space-between;padding:6px 0;font-size:13px}
.stat span:last-child{color:var(--primary);font-weight:600}

/* Footer */
footer{border-top:1px solid var(--border);margin-top:48px;padding:32px 16px;color:var(--text-muted);font-size:13px}
.footer-inner{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.footer-inner h4{color:var(--text);margin-bottom:12px;font-size:14px}
.footer-inner a{display:block;padding:4px 0;color:var(--text-muted)}
.copyright{text-align:center;margin-top:24px;padding-top:16px;border-top:1px solid var(--border)}

/* Comments */
.post-detail{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:16px}
.post-detail h1{font-size:24px;margin:8px 0 12px}
.post-content{line-height:1.8;margin:16px 0;color:var(--text)}
.post-content p{margin-bottom:12px}
.comments{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.comments h2{font-size:18px;margin-bottom:16px}
.comment{padding:12px 0;border-left:2px solid var(--border);padding-left:14px;margin-bottom:8px;cursor:pointer;position:relative}
.comment:hover{border-left-color:var(--primary)}
.comment-meta{font-size:12px;color:var(--text-muted);margin-bottom:6px}
.comment-meta strong{color:var(--text)}
.comment-body{font-size:14px;margin-bottom:6px}
.comment-actions{display:flex;gap:12px;font-size:12px;color:var(--text-muted)}
.comment-actions button:hover{color:var(--primary)}
.comment.collapsed > .comment-body,.comment.collapsed > .comment-actions,.comment.collapsed > .comment{display:none}
.comment-children{margin-left:20px;margin-top:8px}

/* Vote poll */
.poll{margin:20px 0}
.poll-option{margin:10px 0;background:var(--bg);border:1px solid var(--border);border-radius:6px;overflow:hidden;cursor:pointer;position:relative;padding:12px 16px}
.poll-option:hover{border-color:var(--primary)}
.poll-bar{position:absolute;left:0;top:0;bottom:0;background:rgba(255,69,0,.18);transition:width .6s}
.poll-label{position:relative;display:flex;justify-content:space-between;font-weight:600}

/* App download */
.app-hero{background:linear-gradient(135deg,#1A1A1B,#2D1810);padding:60px 24px;text-align:center;border-radius:var(--radius);margin-bottom:32px}
.app-hero h1{font-size:36px;color:var(--primary);margin-bottom:12px}
.app-hero p{font-size:16px;color:var(--text-muted);max-width:600px;margin:0 auto 24px}
.app-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.app-buttons .btn{padding:14px 28px;font-size:16px}

/* Timeline */
.timeline{position:relative;padding-left:32px;margin:24px 0}
.timeline::before{content:"";position:absolute;left:8px;top:0;bottom:0;width:2px;background:var(--border)}
.timeline-item{margin-bottom:24px;position:relative}
.timeline-item::before{content:"";position:absolute;left:-30px;top:8px;width:14px;height:14px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px var(--bg)}
.timeline-item h3{color:var(--primary);font-size:18px;margin-bottom:8px}

/* 404 */
.error-page{text-align:center;padding:80px 20px}
.error-page h1{font-size:120px;color:var(--primary);line-height:1}
.error-page p{color:var(--text-muted);margin:16px 0 24px;font-size:18px}

/* Modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.7);backdrop-filter:blur(4px);display:none;align-items:center;justify-content:center;z-index:100;padding:20px}
.modal.show{display:flex}
.modal-content{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:24px;max-width:480px;width:100%}
.modal-content h3{margin-bottom:16px}

/* Skeleton */
.skeleton{background:linear-gradient(90deg,#272729 25%,#333 50%,#272729 75%);background-size:200% 100%;animation:sk 1.5s infinite;border-radius:6px;height:80px;margin-bottom:12px}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* Responsive */
@media(max-width:1024px){
  .layout{grid-template-columns:1fr 320px}
  .sidebar{display:none}
}
@media(max-width:768px){
  .layout{grid-template-columns:1fr;padding:0 8px}
  .aside{display:none}
  .footer-inner{grid-template-columns:1fr 1fr}
  .search{display:none}
  .post-thumb{width:80px}
  .nav-actions .btn-outline{display:none}
}