:root{--bg-primary: #0a0e1a;--bg-secondary: #141824;--bg-tertiary: #1e2330;--bg-card: rgba(30, 35, 48, .6);--bg-hover: rgba(45, 52, 70, .8);--gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--gradient-success: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);--gradient-danger: linear-gradient(135deg, #ee0979 0%, #ff6a00 100%);--gradient-warning: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);--gradient-info: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);--color-primary: #667eea;--color-primary-light: #8b9ff5;--color-success: #38ef7d;--color-danger: #ff6a00;--color-warning: #f5576c;--color-info: #00f2fe;--text-primary: #ffffff;--text-secondary: #a0aec0;--text-muted: #718096;--border-color: rgba(255, 255, 255, .1);--border-radius: 12px;--border-radius-lg: 16px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .2);--shadow-md: 0 4px 16px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .4);--shadow-glow: 0 0 20px rgba(102, 126, 234, .3);--transition-fast: .15s ease-in-out;--transition-normal: .3s ease-in-out;--transition-slow: .5s ease-in-out;--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 20% 50%,rgba(102,126,234,.1) 0%,transparent 50%),radial-gradient(circle at 80% 80%,rgba(118,75,162,.1) 0%,transparent 50%),radial-gradient(circle at 40% 20%,rgba(56,239,125,.05) 0%,transparent 50%);z-index:-1;animation:backgroundPulse 15s ease-in-out infinite}@keyframes backgroundPulse{0%,to{opacity:1}50%{opacity:.8}}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--gradient-primary);border-radius:5px}::-webkit-scrollbar-thumb:hover{background:var(--color-primary-light)}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;margin-bottom:var(--spacing-sm)}h1{font-size:2.5rem;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}h2{font-size:2rem}h3{font-size:1.5rem}.container{max-width:1400px;margin:0 auto;padding:var(--spacing-lg)}.header{background:var(--bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-color);padding:var(--spacing-md) var(--spacing-lg);position:sticky;top:0;z-index:100;box-shadow:var(--shadow-md)}.header-content{max-width:1400px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:var(--spacing-sm);font-size:1.5rem;font-weight:700;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.logo-icon{font-size:2rem;filter:drop-shadow(0 0 10px rgba(102,126,234,.5))}.card{background:var(--bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border-color);border-radius:var(--border-radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-md);transition:all var(--transition-normal)}.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#667eea4d}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-md);padding-bottom:var(--spacing-sm);border-bottom:1px solid var(--border-color)}.card-title{font-size:1.25rem;font-weight:600;color:var(--text-primary)}.btn{padding:.75rem 1.5rem;border:none;border-radius:var(--border-radius);font-size:1rem;font-weight:600;cursor:pointer;transition:all var(--transition-fast);display:inline-flex;align-items:center;gap:var(--spacing-xs);position:relative;overflow:hidden}.btn:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#fff3;transform:translate(-50%,-50%);transition:width var(--transition-normal),height var(--transition-normal)}.btn:hover:before{width:300px;height:300px}.btn:active{transform:scale(.98)}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:hover{box-shadow:var(--shadow-glow)}.btn-success{background:var(--gradient-success);color:#fff;box-shadow:var(--shadow-sm)}.btn-danger{background:var(--gradient-danger);color:#fff;box-shadow:var(--shadow-sm)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--bg-hover);border-color:var(--color-primary)}.btn:disabled{opacity:.5;cursor:not-allowed}.input-group{margin-bottom:var(--spacing-md)}.input-label{display:block;margin-bottom:var(--spacing-xs);font-weight:500;color:var(--text-secondary)}.input{width:100%;padding:.75rem 1rem;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--border-radius);color:var(--text-primary);font-size:1rem;transition:all var(--transition-fast)}.input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #667eea1a}.textarea{min-height:100px;resize:vertical;font-family:inherit}.grid{display:grid;gap:var(--spacing-lg)}.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.status-badge{display:inline-flex;align-items:center;gap:var(--spacing-xs);padding:.5rem 1rem;border-radius:20px;font-size:.875rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.status-badge:before{content:"";width:8px;height:8px;border-radius:50%;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.status-connected{background:#38ef7d1a;color:var(--color-success);border:1px solid rgba(56,239,125,.3)}.status-connected:before{background:var(--color-success);box-shadow:0 0 10px var(--color-success)}.status-disconnected{background:#ff6a001a;color:var(--color-danger);border:1px solid rgba(255,106,0,.3)}.status-disconnected:before{background:var(--color-danger)}.status-connecting{background:#00f2fe1a;color:var(--color-info);border:1px solid rgba(0,242,254,.3)}.status-connecting:before{background:var(--color-info)}.status-qr{background:#f5576c1a;color:var(--color-warning);border:1px solid rgba(245,87,108,.3)}.status-qr:before{background:var(--color-warning)}.qr-container{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-md);padding:var(--spacing-lg);background:#fff;border-radius:var(--border-radius-lg);margin:var(--spacing-md) 0}.qr-code{max-width:300px;width:100%;height:auto}.spinner{width:40px;height:40px;border:4px solid var(--bg-tertiary);border-top:4px solid var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.modal-overlay{position:fixed;inset:0;background:#000c;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn var(--transition-normal)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--border-radius-lg);padding:var(--spacing-lg);max-width:500px;width:90%;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg);animation:slideUp var(--transition-normal)}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-md);padding-bottom:var(--spacing-sm);border-bottom:1px solid var(--border-color)}.modal-close{background:none;border:none;color:var(--text-secondary);font-size:1.5rem;cursor:pointer;transition:color var(--transition-fast)}.modal-close:hover{color:var(--text-primary)}.text-center{text-align:center}.text-muted{color:var(--text-muted)}.mt-1{margin-top:var(--spacing-sm)}.mt-2{margin-top:var(--spacing-md)}.mt-3{margin-top:var(--spacing-lg)}.mb-1{margin-bottom:var(--spacing-sm)}.mb-2{margin-bottom:var(--spacing-md)}.mb-3{margin-bottom:var(--spacing-lg)}.flex{display:flex}.flex-center{display:flex;align-items:center;justify-content:center}.flex-between{display:flex;justify-content:space-between;align-items:center}.gap-1{gap:var(--spacing-sm)}.gap-2{gap:var(--spacing-md)}.gap-3{gap:var(--spacing-lg)}@media(max-width:768px){.container{padding:var(--spacing-sm)}h1{font-size:2rem}.grid-2,.grid-3{grid-template-columns:1fr}}.app{min-height:100vh}.sessions-header{margin-bottom:var(--spacing-lg)}.sessions-header h2{margin-bottom:var(--spacing-xs)}.empty-state{text-align:center;padding:var(--spacing-xl) var(--spacing-lg);background:var(--bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border-color);border-radius:var(--border-radius-lg);margin-top:var(--spacing-xl)}.empty-icon{font-size:4rem;margin-bottom:var(--spacing-md);animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.session-card{display:flex;flex-direction:column;gap:var(--spacing-md)}.session-content{flex:1}.session-actions{display:flex;gap:var(--spacing-sm);flex-wrap:wrap}.session-actions .btn{flex:1;min-width:150px;justify-content:center}@media(max-width:768px){.session-actions{flex-direction:column}.session-actions .btn{width:100%}}