@import "https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Inter:wght@400;500;600&display=swap";:root{--bg-primary:#0a0a0f;--bg-secondary:#13141f;--bg-tertiary:#1b1c29;--accent-primary:#6366f1;--accent-hover:#4f46e5;--accent-glow:#6366f166;--accent-secondary:#a855f7;--accent-secondary-glow:#a855f766;--text-primary:#fff;--text-secondary:#94a3b8;--text-muted:#64748b;--border-color:#ffffff14;--error-color:#ef4444;--success-color:#10b981;--glass-bg:#13141f99;--glass-border:#ffffff0d;--font-heading:"Outfit", sans-serif;--font-body:"Inter", sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-body);background-color:var(--bg-primary);color:var(--text-primary);background-image:radial-gradient(at 0 0,#6366f126 0,#0000 50%),radial-gradient(at 100% 100%,#a855f726 0,#0000 50%);background-attachment:fixed;flex-direction:column;min-height:100vh;display:flex;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);letter-spacing:-.02em;font-weight:600}button{cursor:pointer;font-family:var(--font-heading);border:none;outline:none;transition:all .3s cubic-bezier(.4,0,.2,1)}input{font-family:var(--font-body);outline:none;transition:border-color .2s,box-shadow .2s}.glass{background:var(--glass-bg);-webkit-backdrop-filter:blur(16px);border:1px solid var(--glass-border);box-shadow:0 8px 32px #0003}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes pulseGlow{0%{box-shadow:0 0 15px var(--accent-glow)}50%{box-shadow:0 0 25px var(--accent-glow)}to{box-shadow:0 0 15px var(--accent-glow)}}.animate-fade-in{animation:.5s ease-out forwards fadeIn}.input-field{background-color:var(--bg-tertiary);border:1px solid var(--border-color);width:100%;color:var(--text-primary);border-radius:12px;padding:14px 16px;font-size:1rem}.input-field:focus{border-color:var(--accent-primary);box-shadow:0 0 0 3px #6366f133}.btn-primary{background:linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);color:#fff;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:14px 24px;font-size:1.05rem;font-weight:600;display:inline-flex;position:relative;overflow:hidden}.btn-primary:before{content:"";opacity:0;background:linear-gradient(135deg,#fff3 0%,#0000 100%);width:100%;height:100%;transition:opacity .3s;position:absolute;top:0;left:0}.btn-primary:hover{box-shadow:0 8px 16px var(--accent-glow);transform:translateY(-2px)}.btn-primary:hover:before{opacity:1}.btn-primary:active{transform:translateY(0)}.btn-icon{color:var(--text-secondary);background:0 0;border-radius:8px;justify-content:center;align-items:center;padding:8px;display:flex}.btn-icon:hover{background-color:var(--bg-tertiary);color:var(--text-primary)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}[data-theme=matrix]{--bg-primary:#050f05;--bg-secondary:#0a1f0a;--bg-tertiary:#0f2e0f;--accent-primary:#00ff41;--accent-hover:#0c3;--accent-secondary:#008f11;--accent-glow:#00ff4166}[data-theme=ocean]{--bg-primary:#020617;--bg-secondary:#0f172a;--bg-tertiary:#1e293b;--accent-primary:#0ea5e9;--accent-hover:#0284c7;--accent-secondary:#3b82f6;--accent-glow:#0ea5e966}[data-theme=cyberpunk]{--bg-primary:#120417;--bg-secondary:#270438;--bg-tertiary:#3a0652;--accent-primary:#f0f;--accent-hover:#c0c;--accent-secondary:#0ff;--accent-glow:#f0f6}.app-container{justify-content:center;align-items:center;width:100vw;height:100vh;display:flex;overflow:hidden}.auth-wrapper{text-align:center;border-radius:24px;width:100%;max-width:420px;padding:40px}.auth-header{margin-bottom:32px}.auth-header h1{background:linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:8px;font-size:2.5rem;display:inline-block}.auth-header p{color:var(--text-secondary)}.auth-form{flex-direction:column;gap:16px;display:flex}.auth-switch{color:var(--text-secondary);margin-top:24px;font-size:.9rem}.auth-switch button{color:var(--accent-primary);background:0 0;margin-left:8px;font-weight:600}.auth-switch button:hover{text-decoration:underline}.auth-error{color:var(--error-color);background:#ef44441a;border-radius:8px;margin-bottom:16px;padding:10px;font-size:.9rem}.auth-error.success{color:var(--success-color);background:#10b9811a}.dashboard{border-radius:24px;width:95vw;max-width:1400px;height:90vh;display:flex;overflow:hidden;box-shadow:0 20px 40px #0006}.sidebar{border-right:1px solid var(--border-color);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#13141fcc;flex-direction:column;width:320px;transition:width .3s;display:flex}.sidebar-collapsed .sidebar{width:88px}.sidebar-collapsed .sidebar-header{padding:16px}.sidebar-collapsed .friend-item{justify-content:center;padding:12px 0}.sidebar-collapsed .friend-avatar{margin-right:0}.sidebar-header{border-bottom:1px solid var(--border-color);padding:24px}.user-profile{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.user-info{flex-direction:column;display:flex}.user-name{font-size:1.1rem;font-weight:600}.user-id{color:var(--accent-primary);cursor:pointer;background:#6366f126;border-radius:6px;margin-top:4px;padding:4px 8px;font-size:.85rem;display:inline-block}.search-bar{gap:8px;display:flex}.search-bar input{border:1px solid var(--border-color);background:var(--bg-primary);color:var(--text-primary);border-radius:10px;flex:1;padding:10px 14px}.search-bar input:focus{border-color:var(--accent-primary)}.friends-list{flex:1;padding:16px;overflow-y:auto}.friend-item{cursor:pointer;border-radius:12px;align-items:center;margin-bottom:8px;padding:12px;transition:background .2s;display:flex;position:relative}.friend-item:hover{background:#ffffff0d}.friend-item.active{background:#6366f126;border:1px solid #6366f14d}.friend-avatar{object-fit:cover;background:linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;margin-right:12px;font-weight:600;display:flex}.status-dot{background-color:var(--success-color);border:2px solid var(--bg-secondary);border-radius:50%;width:12px;height:12px;position:absolute;bottom:12px;left:42px;box-shadow:0 0 8px #10b98180}.friend-info{flex-direction:column;flex:1;display:flex;overflow:hidden}.friend-name{white-space:nowrap;text-overflow:ellipsis;font-weight:500;overflow:hidden}.friend-sub{color:var(--text-muted);white-space:nowrap;font-size:.75rem}.typing-preview{color:var(--accent-primary);font-size:.75rem;font-style:italic}.chat-area{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#0a0a0fb3;flex-direction:column;flex:1;display:flex}.chat-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:24px;display:flex}.header-actions button{margin-left:8px}.chat-messages{flex-direction:column;flex:1;gap:16px;padding:24px;display:flex;overflow-y:auto}.message{word-wrap:break-word;border-radius:16px;max-width:65%;padding:12px 16px;line-height:1.5;position:relative}.message.sent{background:linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-hover) 100%);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}.message.received{background:var(--bg-tertiary);border:1px solid var(--border-color);border-bottom-left-radius:4px;align-self:flex-start}.msg-image{cursor:pointer;border-radius:8px;max-width:100%;margin-top:8px}.typing-bubble{background:0 0;align-self:flex-start;align-items:center;gap:4px;padding:10px;display:flex}.dot{background-color:var(--text-muted);border-radius:50%;width:6px;height:6px;animation:1.4s ease-in-out infinite both bounce}.dot:first-child{animation-delay:-.32s}.dot:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.chat-input-area{border-top:1px solid var(--border-color);padding:20px 24px}.chat-input-form{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:16px;align-items:center;gap:12px;padding:8px;display:flex}.chat-input-form input{color:var(--text-primary);background:0 0;border:none;flex:1;padding:8px 12px;font-size:1rem}.btn-attach{color:var(--text-muted);cursor:pointer;background:0 0;border-radius:8px;padding:8px}.btn-attach:hover{color:var(--text-primary);background:#ffffff1a}.chat-input-form button.btn-send{background:var(--accent-primary);color:#fff;border-radius:12px;justify-content:center;align-items:center;width:40px;height:40px;display:flex}.chat-input-form button.btn-send:hover{background:var(--accent-hover)}.video-modal-overlay{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:100;background:#000000d9;justify-content:center;align-items:center;width:100vw;height:100vh;animation:.3s forwards fadeIn;display:flex;position:fixed;top:0;left:0}.video-modal{background:var(--bg-secondary);border:1px solid var(--glass-border);text-align:center;border-radius:24px;width:900px;max-width:90vw;padding:24px}.video-container{justify-content:center;gap:20px;margin-top:20px;display:flex}.video-box{object-fit:cover;background:#000;border-radius:16px;width:400px;height:300px}.video-controls{justify-content:center;gap:16px;margin-top:24px;display:flex}.btn-hangup{background:var(--error-color);color:#fff;border-radius:30px;padding:12px 24px;font-weight:700}.btn-ans{background:var(--success-color);color:#fff;border-radius:30px;padding:12px 24px;font-weight:700}.empty-chat{color:var(--text-secondary);flex-direction:column;flex:1;justify-content:center;align-items:center;display:flex}.empty-chat span{margin-bottom:16px;font-size:4rem}.copy-toast{background:var(--success-color);color:#fff;z-index:1000;border-radius:30px;padding:12px 24px;font-weight:500;animation:.3s ease-out fadeIn;position:fixed;bottom:24px;left:50%;transform:translate(-50%);box-shadow:0 4px 12px #10b98166}.image-preview-bar{background:#ffffff0d;border-radius:12px;align-items:center;gap:10px;margin-bottom:8px;padding:10px;display:flex}.image-preview-bar img{object-fit:cover;border-radius:8px;height:60px}.cancel-img{color:var(--error-color);cursor:pointer;padding:4px}.landing-container{background:radial-gradient(circle at top, var(--bg-tertiary) 0%, var(--bg-primary) 100%);flex-direction:column;width:100vw;height:100vh;display:flex;overflow:hidden auto}.landing-nav{justify-content:space-between;align-items:center;width:100%;padding:24px 60px;display:flex}.logo-text{background:linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:1.8rem;font-weight:800}.landing-main{flex-direction:column;flex:1;justify-content:center;align-items:center;padding:40px 20px;display:flex}.hero-title{text-align:center;margin-bottom:24px;font-size:5rem;line-height:1.1}.hero-subtitle{color:var(--text-secondary);text-align:center;max-width:600px;margin-bottom:40px;font-size:1.2rem}.cta-container{margin-bottom:80px}.btn-cta{background:linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);color:#fff;border-radius:40px;align-items:center;padding:18px 48px;font-size:1.2rem;font-weight:700;transition:transform .2s,box-shadow .2s;display:inline-flex}.btn-cta:hover{transform:translateY(-4px);box-shadow:0 10px 30px #6366f166}.features-grid{grid-template-columns:repeat(2,1fr);gap:32px;max-width:1000px;padding:20px;display:grid}.feature-card{background:var(--bg-secondary);border:1px solid var(--border-color);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:20px;flex-direction:column;align-items:flex-start;padding:32px;display:flex}.feature-card h3{margin:16px 0 8px;font-size:1.4rem}.feature-card p{color:var(--text-secondary);line-height:1.5}.modal-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:200;background:#0009;justify-content:center;align-items:center;width:100vw;height:100vh;display:flex;position:fixed;top:0;left:0}.modal-box{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:24px;width:420px;padding:32px;position:relative}.modal-close{cursor:pointer;color:var(--text-muted);position:absolute;top:16px;right:16px}.modal-close:hover{color:var(--text-primary)}.form-group{flex-direction:column;gap:8px;margin-bottom:16px;display:flex}.form-group label{color:var(--text-muted);font-size:.9rem}.form-input{border:1px solid var(--border-color);background:var(--bg-secondary);color:#fff;border-radius:12px;padding:12px}.btn-save{background:var(--accent-primary);color:#fff;border-radius:12px;width:100%;margin-top:16px;padding:14px;font-weight:700}.avatar-preview{object-fit:cover;border:3px solid var(--accent-primary);cursor:pointer;border-radius:50%;align-self:center;width:100px;height:100px;margin-bottom:16px}.avatar-upload-hint{text-align:center;color:var(--accent-primary);cursor:pointer;margin-top:-8px;margin-bottom:16px;font-size:.8rem}.group-members{flex-direction:column;gap:12px;max-height:250px;margin-top:20px;margin-bottom:12px;display:flex;overflow-y:auto}.group-member-item{background:var(--bg-secondary);border-radius:12px;align-items:center;gap:12px;padding:8px 12px;display:flex}.group-member-item img{border-radius:50%;width:32px;height:32px}.mobile-only{display:none}@media (width<=1024px){.dashboard{border-radius:0;width:100vw;height:100vh}}@media (width<=768px){.mobile-hide{display:none!important}.mobile-only{display:block!important}.sidebar{border-right:none;width:100%!important}.chat-area{z-index:50;height:100%;display:none;position:fixed;top:0;left:0;width:100%!important}.dashboard.chat-active .sidebar{display:none}.dashboard.chat-active .chat-area{display:flex}.hero-title{font-size:3rem}.features-grid{grid-template-columns:1fr}.modal-box{width:95%;padding:20px}.message{max-width:85%}}