:root{--bg-primary: #1a1a2e;--bg-secondary: #16213e;--bg-tertiary: #0f3460;--bg-input: #1a1a3e;--text-primary: #e4e4e7;--text-secondary: #a1a1aa;--text-muted: #71717a;--accent: #7c3aed;--accent-hover: #6d28d9;--danger: #ef4444;--success: #22c55e;--border: #27273a;--radius: 8px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);overflow:hidden;height:100vh}#root{height:100vh}input,button,textarea{font-family:inherit;font-size:inherit}.auth-page{display:flex;align-items:center;justify-content:center;height:100vh;background:var(--bg-primary)}.auth-card{background:var(--bg-secondary);padding:2.5rem;border-radius:12px;width:100%;max-width:400px;border:1px solid var(--border)}.auth-card h1{font-size:1.5rem;margin-bottom:.25rem}.auth-subtitle{color:var(--text-secondary);margin-bottom:1.5rem}.auth-card label{display:block;font-size:.85rem;color:var(--text-secondary);font-weight:600;text-transform:uppercase;margin-bottom:.5rem;margin-top:1rem}.auth-card input{width:100%;padding:.75rem;border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-input);color:var(--text-primary);outline:none;display:block;margin-top:.25rem}.auth-card input:focus{border-color:var(--accent)}.auth-card button[type=submit]{width:100%;padding:.75rem;background:var(--accent);color:#fff;border:none;border-radius:var(--radius);cursor:pointer;font-weight:600;margin-top:1.5rem}.auth-card button[type=submit]:hover{background:var(--accent-hover)}.auth-error{background:#ef44441a;border:1px solid var(--danger);color:var(--danger);padding:.5rem .75rem;border-radius:var(--radius);font-size:.875rem;margin-top:1rem}.auth-link{text-align:center;margin-top:1rem;color:var(--text-secondary);font-size:.875rem}.auth-link a{color:var(--accent);text-decoration:none}.auth-back{width:100%;padding:.5rem;background:transparent;color:var(--text-secondary);border:none;cursor:pointer;margin-top:.75rem;font-size:.875rem}.auth-back:hover{color:var(--text-primary)}.app-layout{display:flex;height:100vh}.sidebar{width:72px;background:var(--bg-primary);display:flex;flex-direction:column;align-items:center;padding:12px 0;gap:8px;border-right:1px solid var(--border);flex-shrink:0}.sidebar-icon{width:48px;height:48px;border-radius:50%;border:none;background:var(--bg-secondary);color:var(--text-primary);font-weight:700;font-size:1.1rem;cursor:pointer;transition:border-radius .2s,background .2s;display:flex;align-items:center;justify-content:center}.sidebar-icon:hover,.sidebar-icon.active{border-radius:16px;background:var(--accent)}.sidebar-icon.add-server{background:transparent;border:2px dashed var(--border);color:var(--text-muted)}.sidebar-icon.add-server:hover{border-color:var(--accent);color:var(--accent);background:transparent}.sidebar-divider{width:32px;height:2px;background:var(--border);border-radius:1px}.server-content{display:flex;flex:1;min-width:0}.channel-sidebar{width:240px;background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0}.channel-list{padding:8px;flex:1;overflow-y:auto}.channel-item{display:flex;align-items:center;gap:6px;width:100%;padding:8px 12px;border:none;background:transparent;color:var(--text-secondary);border-radius:6px;cursor:pointer;font-size:.9rem;text-align:left}.channel-item:hover{background:#ffffff0d;color:var(--text-primary)}.channel-item.active{background:#ffffff14;color:var(--text-primary)}.channel-icon{font-size:1.1rem;opacity:.6}.channel-view{flex:1;display:flex;flex-direction:column;min-width:0}.message-list{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:4px}.message{padding:6px 12px;border-radius:var(--radius);max-width:70%}.message:hover{background:#ffffff05}.message.own{align-self:flex-end;background:var(--bg-tertiary)}.message-content{word-break:break-word}.message-time{font-size:.7rem;color:var(--text-muted);margin-top:2px}.message-input{display:flex;gap:8px;padding:16px;border-top:1px solid var(--border)}.message-input input{flex:1;padding:12px 16px;border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-input);color:var(--text-primary);outline:none}.message-input input:focus{border-color:var(--accent)}.message-input button{padding:0 20px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius);cursor:pointer;font-weight:600}.message-input button:hover{background:var(--accent-hover)}.member-list{width:240px;background:var(--bg-secondary);border-left:1px solid var(--border);padding:16px;overflow-y:auto;flex-shrink:0}.member-list h3{font-size:.75rem;text-transform:uppercase;color:var(--text-muted);margin-bottom:12px;font-weight:600}.member-row{display:flex;align-items:center;gap:8px;padding:6px 8px;border-radius:6px;cursor:pointer;font-size:.9rem}.member-row:hover{background:#ffffff0d}.member-avatar,.friend-avatar{width:32px;height:32px;border-radius:50%;background:var(--bg-tertiary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem;flex-shrink:0}.no-channel{flex:1;display:flex;align-items:center;justify-content:center;color:var(--text-muted)}.friends-page{flex:1;display:flex;flex-direction:column}.friends-header{padding:16px 24px;border-bottom:1px solid var(--border)}.friends-header h2{font-size:1rem;font-weight:600}.friends-list{flex:1;overflow-y:auto;padding:8px}.friend-row{display:flex;align-items:center;gap:12px;padding:8px 16px;border-radius:var(--radius);cursor:pointer}.friend-row:hover{background:#ffffff0d}.friend-info{display:flex;flex-direction:column}.friend-name{font-weight:500}.friend-username{font-size:.8rem;color:var(--text-muted)}.empty-state{display:flex;align-items:center;justify-content:center;height:200px;color:var(--text-muted)}.btn-icon{background:none;border:none;cursor:pointer;font-size:1.2rem;padding:4px;margin-left:auto}