:root{--site-header-h:64px}body{padding-top:var(--site-header-h)}.site-header{position:fixed;top:0;left:0;right:0;z-index:5000;background:rgba(var(--surface-rgb,255,255,255),.96);border-bottom:1px solid var(--border);backdrop-filter:blur(14px) saturate(130%)}.header-inner{display:grid;grid-template-columns:auto auto 1fr auto auto;gap:var(--space-3);align-items:center;height:var(--site-header-h)}.brand{display:inline-flex;align-items:center;gap:6px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--text);text-decoration:none;font-size:18px;transition:transform .12s,box-shadow .12s,background .12s}.brand span{font-size:18px;display:inline-block;background:linear-gradient(90deg,#f97373 0,#facc15 14%,#3b82f6 28%,#22c55e 42%,#8b5cf6 56%,#f97316 72%,#16a34a 86%,#f97373 100%);-webkit-background-clip:text;background-clip:text;color:transparent}.theme-dark .site-header .brand{padding:6px 14px;border-radius:999px;background:radial-gradient(circle at 10% 0,rgba(248,250,252,.16),transparent 55%),rgba(15,23,42,.86);color:#f9fafb;box-shadow:0 0 0 1px rgba(148,163,184,.35),0 10px 24px rgba(15,23,42,.55)}.theme-dark .site-header .brand:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(148,163,184,.55),0 14px 30px rgba(15,23,42,.68)}.main-nav{display:none;gap:var(--space-3)}@media (min-width:960px){.main-nav{display:flex}}.nav-link{color:var(--text);text-decoration:none;opacity:.8;font-size:14px;padding:6px 12px;border-radius:999px;transition:background .16s,opacity .16s,transform .12s}.nav-link:hover{opacity:1;background:var(--surface-2);transform:translateY(-1px)}.search{display:none!important}.search-input{width:100%;height:40px;border-radius:999px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);padding:0 14px;outline:0}.search-input::placeholder{color:var(--muted)}.icon-btn{height:40px;min-width:40px;display:inline-grid;place-items:center;border-radius:999px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);cursor:pointer;transition:transform .12s,box-shadow .12s,background .12s}.icon-btn:hover{transform:translateY(-1px);box-shadow:var(--shadow-sm)}.icon{font-size:18px;line-height:1}.header-actions{display:flex;gap:10px;align-items:center}.login-btn{height:40px;padding:0 18px;border-radius:999px;border:none;background:var(--brand);color:#fff;font-weight:700;cursor:pointer;box-shadow:0 10px 24px rgba(15,23,42,.26);transition:transform .12s,box-shadow .12s,filter .12s}.login-btn:hover{transform:translateY(-1px);filter:brightness(1.05);box-shadow:0 14px 32px rgba(15,23,42,.32)}.user-menu{position:relative}.avatar-btn{height:40px;width:40px;border-radius:50%;border:1px solid var(--border);overflow:hidden;background:var(--surface-2);padding:0;cursor:pointer}.avatar-btn img{width:100%;height:100%;object-fit:cover;display:block}.avatar-fallback{display:grid;place-items:center;width:100%;height:100%;font-weight:800;color:#000;background:var(--brand)}.user-dropdown{position:absolute;right:0;top:calc(100% + 8px);width:280px;background:var(--surface);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow-md);padding:8px}.user-dd-head{display:flex;gap:10px;padding:8px;border-bottom:1px solid var(--border)}.user-dd-avatar{width:48px;height:48px;border-radius:50%;overflow:hidden;background:var(--surface-2);flex:0 0 auto;display:grid;place-items:center}.user-dd-avatar img{width:100%;height:100%;object-fit:cover;display:block}.user-dd-meta{min-width:0}.user-dd-name{font-weight:800}.user-dd-email{color:var(--muted);font-size:13px;word-break:break-all}.user-dd-menu{list-style:none;margin:8px 0;padding:0}.user-dd-menu li a{display:block;padding:10px 12px;border-radius:10px;text-decoration:none;color:var(--text)}.user-dd-menu li a:hover{background:var(--surface-2)}.user-dd-sep{border:0;height:1px;background:var(--border);margin:8px 0}@media (max-width:768px){:root{--site-header-h:56px}.site-header .container{padding-inline:0}.header-inner{grid-template-columns:1fr;height:var(--site-header-h)}.brand{justify-self:center}.header-actions,.login-btn,.main-nav,.search,.site-header .icon-btn,.user-menu{display:none!important}}.notify-btn{height:40px;min-width:40px;display:inline-grid;place-items:center;border-radius:999px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);cursor:pointer;position:relative}.notify-btn img,.notify-btn svg{width:18px;height:18px;display:block}.theme-dark .notify-btn img{filter:invert(1);opacity:.92}.theme-dark .notify-btn svg{opacity:.92}.notify-badge{position:absolute;top:-4px;right:-4px;min-width:16px;height:16px;padding:0 5px;border-radius:999px;background:#ff3b30;color:#fff;font-size:11px;font-weight:900;display:inline-grid;place-items:center;box-shadow:0 10px 20px rgba(0,0,0,.22)}.notify-badge:empty,.notify-badge[hidden]{display:none!important}.nt-modal[hidden]{display:none}.nt-modal{position:fixed;inset:0;z-index:20000}.nt-backdrop{position:absolute;inset:0;background:color-mix(in oklab,#000,transparent 55%)}.nt-panel{position:absolute;right:0;top:0;bottom:0;width:min(420px,100%);background:var(--surface);color:var(--text);border-left:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.nt-head{padding:12px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.nt-title{font-weight:900}.nt-close{border:1px solid var(--border);background:0 0;color:var(--text);border-radius:10px;padding:6px 10px;cursor:pointer;font-weight:900}.nt-body{padding:12px;overflow:auto;flex:1 1 auto}.nt-item{display:flex;gap:10px;padding:10px;border-radius:14px;border:1px solid var(--border);background:var(--surface-elev);margin-bottom:10px}.nt-ava{width:44px;height:44px;border-radius:999px;overflow:hidden;flex:0 0 auto;border:1px solid var(--border);background:var(--surface);display:grid;place-items:center;text-decoration:none}.nt-ava img{width:100%;height:100%;object-fit:cover;display:block}.nt-ini{font-weight:900;color:var(--heading)}.nt-meta{min-width:0;flex:1 1 auto}.nt-name{font-weight:900;line-height:1.1}.nt-text{margin-top:4px;color:var(--muted);font-size:13px;line-height:1.35}.nt-actions{margin-top:10px;display:flex;gap:10px}.nt-btn{appearance:none;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:12px;padding:10px 12px;font-weight:900;cursor:pointer;flex:1 1 auto}.nt-btn.primary{background:color-mix(in oklab,var(--brand),var(--surface) 70%);color:var(--heading)}.nt-btn.danger{border-color:color-mix(in oklab,#ff3b30,var(--border) 70%);background:color-mix(in oklab,#ff3b30,var(--surface) 88%)}.nt-empty{padding:16px;border-radius:14px;border:1px dashed var(--border);color:var(--muted);text-align:center;font-weight:800}.chat-btn{height:40px;min-width:40px;display:inline-grid;place-items:center;border-radius:999px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);cursor:pointer;position:relative}.chat-btn svg{width:18px;height:18px;display:block}.theme-dark .chat-btn svg{opacity:.92}.chat-badge{position:absolute;top:-4px;right:-4px;min-width:16px;height:16px;padding:0 5px;border-radius:999px;background:#ff3b30;color:#fff;font-size:11px;font-weight:900;display:inline-grid;place-items:center;box-shadow:0 10px 20px rgba(0,0,0,.22)}.chat-badge:empty,.chat-badge[hidden]{display:none!important}.ct-modal[hidden]{display:none}.ct-modal{position:fixed;inset:0;z-index:20010}.ct-backdrop{position:absolute;inset:0;background:color-mix(in oklab,#000,transparent 55%)}.ct-panel{position:absolute;right:0;top:0;bottom:0;width:min(420px,100%);background:var(--surface);color:var(--text);border-left:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.ct-head{padding:12px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;gap:10px}.ct-title{font-weight:900}.ct-close{border:1px solid var(--border);background:0 0;color:var(--text);border-radius:10px;padding:6px 10px;cursor:pointer;font-weight:900}.ct-search{padding:10px 12px;border-bottom:1px solid var(--border)}.ct-search-input{width:100%;height:40px;border-radius:999px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);padding:0 14px;outline:0}.ct-list{padding:10px 12px;overflow:auto;flex:1 1 auto}.ct-item{display:flex;gap:10px;padding:10px;border-radius:14px;border:1px solid var(--border);background:var(--surface-elev);margin-bottom:10px;cursor:pointer}.ct-ava{width:44px;height:44px;border-radius:999px;overflow:hidden;border:1px solid var(--border);background:var(--surface);flex:0 0 auto;display:grid;place-items:center}.ct-ava img{width:100%;height:100%;object-fit:cover;display:block}.ct-ini{font-weight:900}.ct-meta{min-width:0;flex:1 1 auto}.ct-name{font-weight:900;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ct-last{margin-top:4px;color:var(--muted);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ct-row{display:flex;align-items:center;justify-content:space-between;gap:10px}.ct-unread{min-width:18px;height:18px;padding:0 6px;border-radius:999px;background:#ff3b30;color:#fff;font-size:11px;font-weight:900;display:inline-grid;place-items:center}.ct-unread[hidden]{display:none!important}.ct-chat{display:flex;flex-direction:column;flex:1 1 auto}.ct-chat-top{padding:10px 12px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px}.ct-back{border:1px solid var(--border);background:var(--surface-2);color:var(--text);border-radius:12px;padding:8px 10px;cursor:pointer;font-weight:900}.ct-peer{display:flex;align-items:center;gap:10px;min-width:0;flex:1 1 auto}.ct-peer-ava{width:38px;height:38px;border-radius:999px;overflow:hidden;border:1px solid var(--border);background:var(--surface);display:grid;place-items:center}.ct-peer-ava img{width:100%;height:100%;object-fit:cover;display:block}.ct-peer-name{font-weight:900;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:240px}.ct-peer-status{font-size:12.5px;color:var(--muted)}.ct-messages{padding:12px;overflow:auto;flex:1 1 auto;display:flex;flex-direction:column;gap:8px}.ct-bubble{max-width:78%;padding:10px 12px;border-radius:16px;border:1px solid var(--border);background:var(--surface-elev);line-height:1.35;word-break:break-word}.ct-bubble.me{margin-left:auto;background:color-mix(in oklab,var(--brand),var(--surface) 85%)}.ct-bubble .ct-time{margin-top:6px;font-size:11px;color:var(--muted)}.ct-compose{padding:10px 12px;border-top:1px solid var(--border);display:flex;gap:10px}.ct-input{flex:1 1 auto;height:42px;border-radius:999px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);padding:0 14px;outline:0}.ct-send{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:999px;padding:0 14px;font-weight:900;cursor:pointer}@media (max-width:768px){.header-inner{grid-template-columns:1fr auto 1fr;height:var(--site-header-h)}.brand{grid-column:2;justify-self:center}#pwaHeaderInstallBtn,#themeToggleBtn,.login-btn,.main-nav,.search,.site-header #burgerBtn,.user-menu{display:none!important}.header-actions{display:flex!important;grid-column:3;justify-self:end;justify-content:flex-end;margin-right:12px;gap:10px;align-items:center}.notify-btn{display:inline-grid!important}.chat-btn{display:none!important}}