:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;--orange:#f97316;--orange-light:#fed7aa;--orange-dark:#c2410c;--radius:16px;--radius-sm:8px;--radius-full:9999px;--surface:#fff;--surface-dim:#f0f0f0;--surface-container:#f0f0f0;--text:#1a1a1a;--text-muted:#666;--border:#e0e0e0;--bubble-mine:#f97316;--bubble-theirs:#e8e8e8}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--surface:#1a1a1a;--surface-dim:#000;--surface-container:#252525;--text:#f0f0f0;--text-muted:#999;--border:#3a3a3a;--bubble-mine:#c2410c;--bubble-theirs:#2f2f2f}}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}body{background:var(--surface-dim);min-height:100dvh;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.app{background:var(--surface);max-width:480px;height:100dvh;padding-top:env(safe-area-inset-top,0);padding-bottom:env(safe-area-inset-bottom,0);flex-direction:column;margin:0 auto;display:flex;position:relative}.header{border-bottom:1px solid var(--border);background:var(--surface);z-index:10;align-items:center;gap:12px;padding:14px 16px;display:flex;position:sticky;top:0}.header h1{color:var(--orange);letter-spacing:-.5px;flex:1;font-size:1.3rem;font-weight:800}.header-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;min-width:44px;min-height:44px;padding:12px;transition:background .15s;display:flex}.header-btn:hover{background:var(--surface-container)}.back-btn{color:var(--text);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;min-width:44px;min-height:44px;margin-left:-12px;padding:12px;display:flex}.my-knoc-banner{border-bottom:1px solid var(--border);cursor:pointer;background:var(--lightningcss-light,#fff7ed)var(--lightningcss-dark,#2a1a0a);outline:none;align-items:center;gap:10px;padding:12px 16px;transition:background .15s;display:flex}.my-knoc-banner:hover{background:var(--lightningcss-light,#ffedd5)var(--lightningcss-dark,#3a2010)}.my-knoc-banner:focus{outline:none}.my-knoc-banner:focus-visible{outline:2px solid var(--orange);outline-offset:-2px}.my-knoc-label{text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);font-size:.75rem}.my-knoc-id{color:var(--orange);flex:1;font-family:SF Mono,Fira Code,monospace;font-size:1.1rem;font-weight:700}.my-knoc-copy{color:var(--text-muted);font-size:.75rem}.notif-prompt{border-bottom:1px solid var(--border);color:var(--text-muted);background:var(--lightningcss-light,#eff6ff)var(--lightningcss-dark,#1e293b);align-items:center;gap:8px;padding:10px 16px;font-size:.8rem;display:flex}.notif-prompt svg{color:var(--orange);flex-shrink:0}.notif-prompt-text{flex:1}.notif-prompt-btn{border-radius:var(--radius-full);background:var(--orange);color:#fff;cursor:pointer;white-space:nowrap;border:none;padding:5px 12px;font-size:.75rem;font-weight:600}.notif-prompt-btn:hover{opacity:.9}.notif-prompt-dismiss{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:50%;align-items:center;padding:4px;display:flex}.notif-prompt-dismiss:hover{background:var(--surface-container)}.new-chat-section{border-bottom:1px solid var(--border);background:var(--surface-container);padding:12px 16px}.knoc-input{gap:8px;display:flex}.knoc-input input{border-radius:var(--radius-full);border:2px solid var(--border);background:var(--surface);color:var(--text);outline:none;flex:1;padding:10px 16px;font-size:1rem;transition:border-color .2s}.knoc-input input:focus{border-color:var(--orange)}.knoc-btn{border-radius:var(--radius-full);background:var(--orange);color:#fff;cursor:pointer;border:none;padding:10px 18px;font-weight:700}.knoc-btn:hover{opacity:.9}.knoc-cancel{width:40px;color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;display:flex}.error-msg{color:var(--lightningcss-light,#dc2626)var(--lightningcss-dark,#fca5a5);border-radius:var(--radius-sm);text-align:center;background:var(--lightningcss-light,#fef2f2)var(--lightningcss-dark,#3b1111);margin-top:8px;padding:8px 12px;font-size:.85rem}.rooms{flex:1;overflow-y:auto}.room{border-bottom:1px solid var(--border);cursor:pointer;align-items:center;padding:14px 16px;transition:background .15s;display:flex}.room:hover{background:var(--surface-container)}.room-avatar{background:linear-gradient(135deg, var(--orange), var(--orange-dark));color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:46px;height:46px;margin-right:12px;font-size:.85rem;font-weight:700;display:flex}.room-info{flex:1;min-width:0}.room-name{font-size:.95rem;font-weight:600}.room-knoc{color:var(--text-muted);margin-top:1px;font-family:SF Mono,Fira Code,monospace;font-size:.7rem}.room-time{color:var(--text-muted);margin-top:2px;font-size:.75rem}.unread-dot{background:var(--orange);border-radius:50%;width:10px;height:10px}.fab{background:var(--orange);color:#fff;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:56px;height:56px;transition:transform .15s,box-shadow .15s;display:flex;position:absolute;bottom:20px;right:20px;box-shadow:0 4px 12px #f9731666}.fab:hover{transform:scale(1.05);box-shadow:0 6px 16px #f9731680}.messages{flex-direction:column-reverse;flex:1;gap:6px;padding:16px;display:flex;overflow-y:auto}.message{border-radius:var(--radius);word-wrap:break-word;max-width:75%;padding:10px 14px;font-size:.95rem;line-height:1.4;animation:.15s fadeIn}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.message.mine{background:var(--bubble-mine);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}.message.theirs{background:var(--bubble-theirs);border-bottom-left-radius:4px;align-self:flex-start}.chat-empty-hint{height:100%;color:var(--text-muted);text-align:center;justify-content:center;align-items:center;font-size:.9rem;display:flex}.chat-input{border-top:1px solid var(--border);background:var(--surface);gap:8px;padding:10px 12px;display:flex}.chat-input input{border-radius:var(--radius-full);border:1px solid var(--border);background:var(--surface-container);color:var(--text);outline:none;flex:1;padding:10px 16px;font-size:1rem}.chat-input input:focus{border-color:var(--orange)}.send-btn{background:var(--orange);color:#fff;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:42px;height:42px;transition:opacity .15s;display:flex}.send-btn:hover{opacity:.9}.chat-peer-info{flex:1}.chat-peer-poster{font-size:1rem;font-weight:700;display:block}.chat-peer-id{color:var(--text-muted);font-family:SF Mono,Fira Code,monospace;font-size:.75rem;font-weight:500}.chat-menu-overlay{z-index:99;position:fixed;inset:0}.chat-menu{background:var(--surface-container);border:1px solid var(--border);border-radius:var(--radius);z-index:100;min-width:180px;position:absolute;top:48px;right:8px;overflow:hidden;box-shadow:0 4px 16px #0000004d}.chat-menu-item{width:100%;color:var(--text);cursor:pointer;text-align:left;background:0 0;border:none;align-items:center;gap:10px;padding:12px 16px;font-size:.85rem;display:flex}.chat-menu-item:hover{background:var(--surface)}.chat-menu-item.danger{color:#ef4444}.chat-menu-item.danger:hover{background:#ef44441a}.poster-input{border-radius:var(--radius-full);border:1px solid var(--border);background:var(--surface);color:var(--text);outline:none;flex:1;padding:8px 14px;font-size:.9rem;transition:border-color .2s}.poster-input:focus{border-color:var(--orange)}.qr-container{border-radius:var(--radius);background:#fff;flex-direction:column;align-items:center;margin-top:16px;padding:16px;display:flex}.qr-container img{border-radius:var(--radius-sm)}.qr-poster{color:#1a1a1a;text-align:center;margin-top:10px;font-size:1rem;font-weight:700}.qr-knoc{color:#666;text-align:center;margin-top:4px;font-family:SF Mono,Fira Code,monospace;font-size:.75rem}.empty{text-align:center;color:var(--text-muted);flex-direction:column;flex:1;justify-content:center;align-items:center;padding:48px 32px;display:flex}.empty svg{opacity:.4;width:48px;height:48px;margin-bottom:16px}.empty h2{color:var(--text);margin-bottom:8px;font-size:1.1rem}.empty p{font-size:.9rem;line-height:1.5}.settings{flex:1;padding:16px;overflow-y:auto}.card{background:var(--surface-container);border-radius:var(--radius);margin-bottom:12px;padding:20px}.card h3{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px;font-size:.75rem;font-weight:600}.card .value{color:var(--orange);font-family:SF Mono,Fira Code,monospace;font-size:1.3rem;font-weight:700}.card-hint{color:var(--text-muted);margin-top:8px;font-size:.85rem;line-height:1.4}.settings-link{color:var(--text-muted);font-size:.8rem;text-decoration:none;transition:color .15s}.settings-link:hover{color:var(--orange)}.legal-content{color:var(--text);flex:1;padding:20px 16px 40px;font-size:.9rem;line-height:1.6;overflow-y:auto}.legal-content h2{color:var(--text);margin-top:20px;margin-bottom:6px;font-size:.95rem;font-weight:700}.legal-content p{color:var(--text-muted);margin-bottom:10px}.legal-content ul{margin-bottom:10px;padding-left:20px}.legal-content li{color:var(--text-muted);margin-bottom:4px}.legal-updated{opacity:.6;margin-bottom:16px;font-size:.75rem}.legal-footer{opacity:.6;margin-top:24px;font-size:.75rem}.btn{border-radius:var(--radius-full);cursor:pointer;border:none;align-items:center;gap:6px;padding:10px 18px;font-size:.85rem;font-weight:600;transition:opacity .15s;display:inline-flex}.btn:hover{opacity:.9}.btn-primary{background:var(--orange);color:#fff}.btn-danger{color:#fff;background:var(--lightningcss-light,#dc2626)var(--lightningcss-dark,#b91c1c)}.btn-secondary{background:var(--surface-container);color:var(--text);border:1px solid var(--border)}.loading{height:100dvh;color:var(--orange);justify-content:center;align-items:center;font-size:1.3rem;font-weight:700;display:flex}