:root{--bg-primary: #0a0e17;--bg-secondary: #111827;--bg-tertiary: #1a2236;--bg-surface: rgba(17, 24, 39, .7);--bg-glass: rgba(26, 34, 54, .55);--accent-primary: #06d6a0;--accent-primary-dim: rgba(6, 214, 160, .15);--accent-secondary: #118ab2;--accent-warning: #ffd166;--accent-danger: #ef476f;--text-primary: #e8ecf4;--text-secondary: #8b95a8;--text-muted: #4b5672;--text-accent: var(--accent-primary);--border-default: rgba(139, 149, 168, .12);--border-hover: rgba(6, 214, 160, .3);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .25);--shadow-md: 0 4px 24px rgba(0, 0, 0, .35);--shadow-glow: 0 0 20px rgba(6, 214, 160, .15);--sidebar-width: 280px;--header-height: 60px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-pill: 999px;--font-display: "Outfit", system-ui, sans-serif;--font-mono: "JetBrains Mono", monospace;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-default: .25s cubic-bezier(.4, 0, .2, 1);--transition-spring: .4s cubic-bezier(.34, 1.56, .64, 1)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;font-family:var(--font-display);font-size:15px;line-height:1.6;color:var(--text-primary);background:var(--bg-primary);overflow:hidden;-webkit-font-smoothing:antialiased}#app{width:100vw;height:100vh;display:flex;flex-direction:column}a{color:var(--accent-primary);text-decoration:none}a:hover{text-decoration:underline}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--text-muted);border-radius:var(--radius-pill)}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}body:before{content:"";position:fixed;inset:0;background:radial-gradient(ellipse 80% 60% at 20% 10%,rgba(6,214,160,.06),transparent),radial-gradient(ellipse 60% 50% at 80% 80%,rgba(17,138,178,.06),transparent);pointer-events:none;z-index:0}.hidden{display:none!important}.flex-center{display:flex;align-items:center;justify-content:center}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mono{font-family:var(--font-mono)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 22px;border:none;border-radius:var(--radius-sm);font-family:var(--font-display);font-weight:500;font-size:14px;cursor:pointer;transition:all var(--transition-default);position:relative;overflow:hidden}.btn:after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.1),transparent);opacity:0;transition:opacity var(--transition-fast)}.btn:hover:after{opacity:1}.btn-primary{background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));color:#fff;box-shadow:var(--shadow-glow)}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 30px #06d6a040}.btn-primary:active{transform:translateY(0)}.btn-ghost{background:var(--bg-glass);color:var(--text-primary);border:1px solid var(--border-default);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.btn-ghost:hover{border-color:var(--border-hover);background:#06d6a014}.btn-sm{padding:6px 14px;font-size:13px}.btn-icon{width:36px;height:36px;padding:0;border-radius:var(--radius-sm)}.input-field{width:100%;padding:12px 16px;background:var(--bg-tertiary);border:1px solid var(--border-default);border-radius:var(--radius-sm);color:var(--text-primary);font-family:var(--font-display);font-size:14px;outline:none;transition:all var(--transition-default)}.input-field::placeholder{color:var(--text-muted)}.input-field:focus{border-color:var(--accent-primary);box-shadow:0 0 0 3px var(--accent-primary-dim)}.glass-card{background:var(--bg-glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-default);border-radius:var(--radius-md)}.login-page{width:100vw;height:100vh;display:flex;align-items:center;justify-content:center;position:relative;z-index:1}.login-container{width:420px;padding:48px 40px;text-align:center;animation:slideUp .6s var(--transition-spring)}.login-logo{font-size:42px;margin-bottom:8px}.login-title{font-size:28px;font-weight:700;letter-spacing:-.5px;margin-bottom:4px;background:linear-gradient(135deg,var(--text-primary),var(--accent-primary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.login-subtitle{color:var(--text-secondary);font-size:14px;margin-bottom:32px}.login-form{display:flex;flex-direction:column;gap:16px}.login-form .input-field{background:#0a0e1799}.login-actions{display:flex;gap:12px;margin-top:8px}.login-actions .btn{flex:1}.login-error{color:var(--accent-danger);font-size:13px;min-height:20px;margin-top:4px}.chat-app{display:flex;width:100%;height:100vh;position:relative;z-index:1}.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);height:100%;background:var(--bg-secondary);border-right:1px solid var(--border-default);display:flex;flex-direction:column;position:relative;z-index:2;overflow:hidden}.sidebar-header{height:var(--header-height);padding:0 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border-default);flex-shrink:0}.sidebar-logo{font-size:18px;font-weight:700;display:flex;align-items:center;gap:8px}.sidebar-logo span{background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.sidebar-section-title{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:1.2px;color:var(--text-muted);padding:0 8px;margin-bottom:8px}.channel-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);color:var(--text-secondary);font-size:14px;font-weight:400}.channel-item:hover{background:var(--accent-primary-dim);color:var(--text-primary)}.channel-item.active{background:var(--accent-primary-dim);color:var(--accent-primary);font-weight:500}.channel-item .channel-hash{font-family:var(--font-mono);font-size:16px;font-weight:600;opacity:.5}.channel-item.active .channel-hash{opacity:1}.sidebar-user{padding:12px 16px;border-top:1px solid var(--border-default);display:flex;align-items:center;gap:12px;flex-shrink:0}.user-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px;color:#fff;flex-shrink:0}.user-avatar.sm{width:28px;height:28px;font-size:11px}.user-avatar.lg{width:42px;height:42px;font-size:16px}.user-info{flex:1;min-width:0}.user-name{font-size:14px;font-weight:500}.user-status{font-size:11px;color:var(--accent-primary)}.chat-main{flex:1;display:flex;flex-direction:column;min-width:0;background:var(--bg-primary)}.chat-header{height:var(--header-height);padding:0 24px;display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--border-default);background:#0a0e17cc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);flex-shrink:0}.chat-header-name{font-size:17px;font-weight:600}.chat-header-desc{font-size:13px;color:var(--text-secondary);margin-left:4px}.chat-header-actions{margin-left:auto;display:flex;gap:8px}.messages-container{flex:1;overflow-y:auto;padding:24px 24px 12px;display:flex;flex-direction:column;gap:4px}.message-group{display:flex;gap:12px;padding:8px 0;animation:fadeIn .3s ease}.message-content-wrap{flex:1;min-width:0}.message-meta{display:flex;align-items:baseline;gap:8px;margin-bottom:4px}.message-author{font-weight:600;font-size:14px;color:var(--text-primary)}.message-time{font-size:11px;color:var(--text-muted);font-family:var(--font-mono)}.message-text{font-size:14px;line-height:1.65;color:var(--text-secondary);word-break:break-word}.file-card{display:inline-flex;align-items:center;gap:12px;padding:12px 16px;background:var(--bg-tertiary);border:1px solid var(--border-default);border-radius:var(--radius-sm);margin-top:6px;cursor:pointer;transition:all var(--transition-default);max-width:360px}.file-card:hover{border-color:var(--border-hover);background:#06d6a00d}.file-card-icon{width:40px;height:40px;border-radius:var(--radius-sm);background:var(--accent-primary-dim);color:var(--accent-primary);display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0}.file-card-info{display:flex;flex-direction:column;gap:2px;overflow:hidden;min-width:0}.file-card-name{font-size:14px;font-weight:500;color:var(--text-primary)}.file-card-size{font-size:12px;color:var(--text-secondary);font-family:var(--font-mono)}.code-block{position:relative;background:#0d1117;border:1px solid var(--border-default);border-radius:8px;margin:8px 0;overflow:hidden}.code-block pre{margin:0;padding:14px 16px;overflow-x:auto;font-family:var(--font-mono);font-size:13px;line-height:1.5;color:#e6edf3;white-space:pre;tab-size:4}.code-block code{font-family:inherit}.code-lang{position:absolute;top:6px;left:12px;font-size:11px;color:var(--text-muted);font-family:var(--font-mono);opacity:.7;pointer-events:none}.code-copy-btn{position:absolute;top:6px;right:8px;background:transparent;border:1px solid rgba(255,255,255,.15);border-radius:4px;cursor:pointer;font-size:13px;padding:2px 6px;opacity:0;transition:opacity .2s;color:var(--text-secondary)}.code-block:hover .code-copy-btn{opacity:1}.code-copy-btn:hover{background:#ffffff1a}.inline-code{background:#6e768140;border-radius:4px;padding:1px 5px;font-family:var(--font-mono);font-size:.9em;color:var(--text-primary)}.message-text{word-break:break-word;white-space:pre-wrap}.search-highlight{background:#ffc80059;color:#fff;padding:1px 2px;border-radius:3px;font-weight:600;border-bottom:2px solid rgba(255,200,0,.7)}.profile-header{background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));padding:32px 24px 24px;display:flex;flex-direction:column;align-items:center;gap:8px}.profile-avatar-wrapper{width:88px;height:88px;border-radius:50%;position:relative;cursor:pointer;overflow:hidden;border:3px solid rgba(255,255,255,.3);transition:transform .2s}.profile-avatar-wrapper:hover{transform:scale(1.05)}.profile-avatar-preview{width:100%;height:100%;object-fit:cover;display:flex;align-items:center;justify-content:center;border-radius:50%}.profile-avatar-initials{background:#fff3;color:#fff;font-size:28px;font-weight:700}.profile-avatar-overlay{position:absolute;bottom:0;left:0;right:0;height:32px;background:#0000008c;display:flex;align-items:center;justify-content:center;font-size:14px;opacity:0;transition:opacity .2s}.profile-avatar-wrapper:hover .profile-avatar-overlay{opacity:1}.profile-preview-text{font-size:12px;color:#fffc;min-height:16px}.profile-body{padding:20px 24px 24px;display:flex;flex-direction:column;gap:12px}.profile-label{font-size:12px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px}.profile-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:8px}.chat-input-bar{padding:16px 24px;border-top:1px solid var(--border-default);display:flex;align-items:flex-end;gap:12px;flex-shrink:0;background:#0a0e1799;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.chat-input-wrap{flex:1;display:flex;align-items:flex-end;gap:8px;background:var(--bg-tertiary);border:1px solid var(--border-default);border-radius:var(--radius-md);padding:4px 8px;transition:border-color var(--transition-default)}.chat-input-wrap:focus-within{border-color:var(--accent-primary);box-shadow:0 0 0 3px var(--accent-primary-dim)}.chat-input{flex:1;border:none;background:transparent;color:var(--text-primary);font-family:var(--font-display);font-size:14px;padding:10px 8px;resize:none;outline:none;max-height:120px;line-height:1.5}.chat-input::placeholder{color:var(--text-muted)}.chat-input-actions{display:flex;gap:4px;padding-bottom:6px}.typing-indicator{padding:4px 24px;font-size:12px;color:var(--text-muted);min-height:24px;font-style:italic}.modal-overlay{position:fixed;inset:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;display:flex;align-items:center;justify-content:center;animation:fadeIn .2s ease}.modal{width:440px;padding:32px;animation:slideUp .3s var(--transition-spring)}.modal-title{font-size:20px;font-weight:600;margin-bottom:20px}.modal-form{display:flex;flex-direction:column;gap:14px}.modal-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:8px}.welcome-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-muted);gap:12px}.welcome-state .welcome-icon{font-size:56px;margin-bottom:8px}.welcome-state h2{font-size:22px;font-weight:600;color:var(--text-secondary)}.welcome-state p{font-size:14px}.drop-overlay{position:absolute;inset:0;background:#06d6a014;border:2px dashed var(--accent-primary);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;z-index:50;font-size:18px;font-weight:600;color:var(--accent-primary);pointer-events:none;animation:fadeIn .2s ease}.online-dot{width:8px;height:8px;border-radius:50%;background:var(--accent-primary);display:inline-block;flex-shrink:0;box-shadow:0 0 6px var(--accent-primary)}.online-dot.offline{background:var(--text-muted);box-shadow:none}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,80%,to{transform:scale(.6);opacity:.4}40%{transform:scale(1);opacity:1}}.typing-dots{display:inline-flex;gap:3px;margin-left:4px}.typing-dots span{width:5px;height:5px;border-radius:50%;background:var(--text-muted);animation:pulse 1.4s infinite}.typing-dots span:nth-child(2){animation-delay:.2s}.typing-dots span:nth-child(3){animation-delay:.4s}.sidebar-sections{flex:1;overflow-y:auto;display:flex;flex-direction:column}.sidebar-section{padding:12px 12px 4px}.dm-title{display:flex;align-items:center;justify-content:space-between}.btn-xs{width:26px;height:26px;padding:0;font-size:13px;border-radius:var(--radius-sm)}.dm-item{gap:10px}.dm-avatar-sm{width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,#ef476f,#ffd166);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:10px;color:#fff;flex-shrink:0}.online-dot-sm{width:6px;height:6px;border-radius:50%;background:var(--accent-primary);display:inline-block;flex-shrink:0;box-shadow:0 0 4px var(--accent-primary);margin-left:auto}.online-dot-sm.offline{background:var(--text-muted);box-shadow:none}.dm-empty{padding:8px 12px;font-size:12px;color:var(--text-muted);font-style:italic}.dm-user-list{max-height:320px;overflow-y:auto;display:flex;flex-direction:column;gap:4px}.dm-user-option{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast)}.dm-user-option:hover{background:var(--accent-primary-dim)}.dm-user-name{flex:1;font-size:14px;font-weight:500}.image-card{margin-top:6px;display:inline-block;max-width:400px}.msg-image{max-width:100%;max-height:300px;border-radius:var(--radius-sm);border:1px solid var(--border-default);cursor:pointer;transition:all var(--transition-default);display:block}.msg-image:hover{border-color:var(--border-hover);box-shadow:var(--shadow-glow)}.image-card .file-card-size{font-size:11px;color:var(--text-muted);font-family:var(--font-mono);margin-top:4px}@media(max-width:768px){.sidebar{width:240px;min-width:240px}}@media(max-width:640px){.sidebar{display:none}}