:root{--text: #0f1419;--muted: #536471;--line: #eff3f4;--blue: #1d9bf0;--blue-dark: #1a8cd8;--bg: #f7f9fa;--card: #ffffff}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:15px;line-height:1.4}a{color:var(--blue)}.layout{min-height:100vh;display:flex;flex-direction:column}.topbar{position:sticky;top:0;z-index:10;background:#ffffffd9;backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}.topbar-inner{max-width:620px;margin:0 auto;display:flex;align-items:center;gap:16px;padding:10px 16px}.brand{display:inline-flex;align-items:center;gap:8px;font-size:20px;font-weight:800;color:var(--text);text-decoration:none}.brand-logo{display:block;width:30px;height:30px;border-radius:8px}.nav{display:flex;gap:14px}.nav a{color:var(--muted);text-decoration:none;font-weight:600;padding:6px 2px;border-bottom:2px solid transparent}.nav a:hover{color:var(--text)}.nav a.active{color:var(--text);border-bottom-color:var(--blue)}.spacer{flex:1}.me{display:inline-flex;align-items:center;gap:8px;color:var(--text);font-weight:700;text-decoration:none;max-width:260px}.me span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px}main.content{flex:1;width:100%;max-width:620px;margin:0 auto;background:var(--card);border-left:1px solid var(--line);border-right:1px solid var(--line);min-height:60vh}.foot{text-align:center;color:var(--muted);font-size:12px;padding:16px}.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid #cfd9de;background:#fff;color:var(--text);border-radius:9999px;padding:8px 16px;font:inherit;font-weight:700;cursor:pointer;text-decoration:none}.btn:hover{background:#f7f9fa}.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}.btn.primary:hover{background:var(--blue-dark)}.btn.danger{color:#f4212e;border-color:#f4bbc0}.btn.danger:hover{background:#fff5f5}.btn:disabled{opacity:.55;cursor:wait}.error{color:#f4212e;font-size:13px}.error-banner{display:flex;align-items:center;justify-content:space-between;gap:16px;background:#fde8e8;color:#8a1c1c;border:1px solid #f4bbc0;border-radius:12px;padding:10px 14px;margin:12px 16px;font-size:14px}.spinner{width:14px;height:14px;border-radius:50%;border:2px solid rgba(255,255,255,.45);border-top-color:#fff;animation:spin .8s linear infinite;display:inline-block}.btn:not(.primary) .spinner,.action .spinner{border-color:#1d9bf04d;border-top-color:var(--blue)}.spinner.small{width:12px;height:12px}@keyframes spin{to{transform:rotate(360deg)}}.sk-row{display:flex;gap:12px;align-items:center}.sk-lines{flex:1;min-width:0}.bar,.sk-avatar,.sk-dot,.sk-line,.sk-media,.media-skeleton{display:block;background:linear-gradient(100deg,#e7ecf0 40%,#f5f8fa,#e7ecf0 60%);background-size:200% 100%;animation:shimmer 1.4s infinite}.bar{height:12px;margin:10px 0;border-radius:6px}.bar.w40{width:40%}.bar.w60{width:60%}.bar.w80{width:80%}.bar.tall{height:18px;margin-top:14px}.sk-avatar{width:44px;height:44px;border-radius:50%;flex:none}.sk-avatar.small{width:36px;height:36px}.sk-avatar.big{width:128px;height:128px}.sk-dot{width:32px;height:32px;border-radius:50%}.sk-line{width:90px;height:12px;border-radius:6px}.sk-user{display:inline-flex;align-items:center;gap:8px}.sk-media{height:220px;border-radius:16px}@keyframes shimmer{to{background-position:-200% 0}}@media(max-width:640px){main.content{border-left:0;border-right:0}}