:root{--bg-primary: #0a0a0a;--bg-secondary: #141414;--text-primary: #fdfcfb;--text-secondary: rgba(253, 252, 251, .75);--text-muted: rgba(253, 252, 251, .5);--accent-primary: #00e5ff;--accent-secondary: #0099cc;--accent-glow: rgba(0, 229, 255, .4);--glass-bg: rgba(253, 252, 251, .04);--glass-hover: rgba(253, 252, 251, .08);--border-color: rgba(0, 229, 255, .2);--border-hover: rgba(0, 229, 255, .5);--error: #ef4444;--success: #00e5ff}*{box-sizing:border-box;margin:0;padding:0}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;display:flex;justify-content:center;padding:2rem;position:relative;overflow:hidden}.bg-animation{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none}.bg-orb{position:absolute;border-radius:50%;filter:blur(80px);opacity:.5;animation:float 20s ease-in-out infinite}.bg-orb--1{width:600px;height:600px;top:-20%;right:-15%;background:radial-gradient(circle,rgba(0,229,255,.15) 0%,transparent 70%);animation-duration:25s}.bg-orb--2{width:400px;height:400px;bottom:-10%;left:-10%;background:radial-gradient(circle,rgba(0,153,204,.12) 0%,transparent 70%);animation-duration:30s;animation-delay:-5s;animation-direction:reverse}.bg-orb--3{width:300px;height:300px;top:40%;left:60%;background:radial-gradient(circle,rgba(0,229,255,.08) 0%,transparent 70%);animation-duration:22s;animation-delay:-10s}@keyframes float{0%,to{transform:translate(0) scale(1);opacity:.5}25%{transform:translate(30px,-40px) scale(1.05);opacity:.6}50%{transform:translate(-20px,20px) scale(.95);opacity:.4}75%{transform:translate(40px,30px) scale(1.02);opacity:.55}}.bg-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(0,229,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(0,229,255,.03) 1px,transparent 1px);background-size:60px 60px;mask-image:radial-gradient(ellipse at center,black 0%,transparent 70%);-webkit-mask-image:radial-gradient(ellipse at center,black 0%,transparent 70%)}.bg-noise{position:absolute;inset:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%' height='100%' filter='url(%23noise)'/%3E%3C/svg%3E");opacity:.03}#app{max-width:480px;width:100%;position:relative;z-index:1}header{text-align:center;margin-bottom:2rem}h1{font-size:2rem;font-weight:700;background:linear-gradient(135deg,var(--text-primary) 0%,var(--accent-primary) 50%,var(--text-primary) 100%);background-size:200% auto;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:.5rem;animation:gradientShift 8s ease infinite}@keyframes gradientShift{0%,to{background-position:0% center}50%{background-position:100% center}}.tagline{color:var(--text-muted);font-size:.95rem}main{background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:16px;padding:2rem;box-shadow:0 8px 32px #0000004d,0 0 0 1px #00e5ff0d inset;animation:cardFadeIn .6s ease-out}@keyframes cardFadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}button{font-family:inherit;font-size:.95rem;font-weight:500;padding:.875rem 1.5rem;border-radius:12px;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;position:relative;overflow:hidden;touch-action:manipulation}.btn-primary{background:linear-gradient(135deg,var(--accent-primary) 0%,var(--accent-secondary) 100%);color:var(--bg-primary);border:none;box-shadow:0 4px 20px #00e5ff33}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 32px #00e5ff4d}.btn-primary:active:not(:disabled){transform:translateY(0);box-shadow:0 4px 16px #00e5ff33}.btn-secondary{background:var(--glass-bg);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover:not(:disabled){background:var(--glass-hover);border-color:var(--border-hover);transform:translateY(-2px);box-shadow:0 8px 32px #00e5ff1a}.btn-secondary:active:not(:disabled){transform:translateY(0)}button:disabled{opacity:.5;cursor:not-allowed}button:disabled:hover{transform:none}button .spinner{display:none;width:18px;height:18px;border:2px solid transparent;border-top-color:currentColor;border-radius:50%;animation:spin .8s linear infinite;margin-right:.5rem}button.loading .spinner{display:inline-block}button.loading .btn-text{opacity:.8}@keyframes spin{to{transform:rotate(360deg)}}#login-section{text-align:center;padding:2rem 0}#login-section p{color:var(--text-secondary);margin-bottom:1.5rem;line-height:1.6}#login-btn{width:100%;display:inline-flex;align-items:center;justify-content:center;gap:.75rem}#login-btn svg{width:20px;height:20px}#jwt-section{text-align:center;padding:2rem 0}#jwt-section p{color:var(--text-secondary);margin-bottom:1rem;line-height:1.6}#jwt-section .jwt-help{font-size:.85rem;color:var(--text-muted);margin-bottom:1.5rem}#jwt-section .jwt-help a{color:var(--accent-primary);text-decoration:none;transition:opacity .2s ease}#jwt-section .jwt-help a:hover{opacity:.8}#jwt-section code{background:var(--glass-bg);padding:.15rem .4rem;border-radius:4px;font-family:ui-monospace,monospace;font-size:.85em;color:var(--accent-primary)}#jwt-form{display:flex;flex-direction:column;gap:1rem}.input-group{text-align:left}.input-group label{display:block;font-size:.9rem;color:var(--text-secondary);margin-bottom:.5rem;font-weight:500}.input-group input{width:100%;padding:.875rem 1rem;font-family:ui-monospace,monospace;font-size:.9rem;background:var(--glass-bg);border:1px solid var(--border-color);border-radius:12px;color:var(--text-primary);transition:border-color .2s ease,box-shadow .2s ease}.input-group input::placeholder{color:var(--text-muted)}.input-group input:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px var(--accent-glow)}#jwt-submit-btn{width:100%;display:inline-flex;align-items:center;justify-content:center;gap:.75rem}#jwt-submit-btn svg{width:20px;height:20px}#jwt-section[hidden]{display:none}#user-info{display:flex;align-items:center;gap:1rem;padding:1rem;background:var(--glass-bg);border:1px solid var(--border-color);border-radius:12px;margin-bottom:1.5rem}.user-avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--accent-primary) 0%,var(--accent-secondary) 100%);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:1.25rem;color:var(--bg-primary);flex-shrink:0;overflow:hidden}.user-avatar-img{width:100%;height:100%;object-fit:cover}.user-details{flex:1;min-width:0}.user-name{font-weight:600;color:var(--text-primary);margin-bottom:.125rem}.user-channel{font-size:.85rem;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.logout-btn{background:none;border:none;color:var(--text-muted);font-size:.85rem;padding:.5rem;cursor:pointer;transition:color .2s ease}.logout-btn:hover{color:var(--error)}fieldset{border:1px solid var(--border-color);border-radius:12px;padding:1.25rem;margin-bottom:1.5rem}legend{padding:0 .75rem;color:var(--text-secondary);font-size:.9rem;font-weight:500}.checkbox-group{display:flex;flex-direction:column;gap:.25rem}.checkbox-label{display:flex;align-items:center;gap:.75rem;padding:.75rem;border-radius:8px;cursor:pointer;transition:background .2s ease;user-select:none}.checkbox-label:hover{background:var(--glass-bg)}.checkbox-label input[type=checkbox]{display:none}.checkbox-custom{width:22px;height:22px;border:2px solid var(--border-color);border-radius:6px;display:flex;align-items:center;justify-content:center;transition:all .2s ease;flex-shrink:0}.checkbox-custom svg{width:14px;height:14px;stroke:var(--bg-primary);stroke-width:3;opacity:0;transform:scale(.5);transition:all .2s ease}.checkbox-label input:checked+.checkbox-custom{background:var(--accent-primary);border-color:var(--accent-primary);box-shadow:0 0 12px var(--accent-glow)}.checkbox-label input:checked+.checkbox-custom svg{opacity:1;transform:scale(1)}.checkbox-text{color:var(--text-primary);font-size:.95rem}.checkbox-text .desc{display:block;font-size:.8rem;color:var(--text-muted);margin-top:.125rem}#preset-group{display:flex;align-items:center;gap:.5rem;margin-bottom:1rem;flex-wrap:wrap}.preset-label{font-size:.85rem;color:var(--text-muted);margin-right:.25rem}.preset-btn{padding:.375rem .75rem;font-size:.8rem;background:var(--glass-bg);border:1px solid var(--border-color);border-radius:6px;color:var(--text-secondary);cursor:pointer;transition:background-color .2s ease,border-color .2s ease,color .2s ease,transform .2s ease;touch-action:manipulation}.preset-btn:hover{background:var(--glass-hover);border-color:var(--border-hover);color:var(--text-primary)}.preset-btn:active{transform:scale(.95)}#button-group{display:flex;gap:1rem}#button-group button{flex:1}#progress{margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid var(--border-color)}#progress-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.75rem}#progress-text{display:flex;align-items:center;gap:.75rem;font-size:.9rem}.btn-cancel{padding:.375rem .75rem;font-size:.8rem;background:transparent;border:1px solid var(--error);border-radius:6px;color:var(--error);cursor:pointer;transition:all .2s ease}.btn-cancel:hover{background:var(--error);color:var(--bg-primary)}#progress-label{color:var(--text-secondary)}#progress-percent{color:var(--accent-primary);font-weight:600;font-variant-numeric:tabular-nums}.progress-track{width:100%;height:8px;background:var(--glass-bg);border-radius:4px;overflow:hidden;position:relative}.progress-fill{height:100%;background:linear-gradient(90deg,var(--accent-primary) 0%,var(--accent-secondary) 100%);border-radius:4px;transition:width .3s ease;position:relative;box-shadow:0 0 12px var(--accent-glow)}.progress-fill:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.3) 50%,transparent 100%);animation:shimmer 1.5s infinite}@keyframes shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}[hidden]{display:none}section[hidden]{display:none}div[hidden],#export-section[hidden],#login-section[hidden],#progress[hidden]{display:none}#toast-container{position:fixed;top:1.5rem;right:1.5rem;z-index:1000;display:flex;flex-direction:column;gap:.75rem}.toast{display:flex;align-items:flex-start;gap:.75rem;background:var(--bg-secondary);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:12px;padding:1rem;max-width:360px;min-width:280px;animation:slideIn .3s ease;box-shadow:0 8px 32px #0006}.toast-icon{width:20px;height:20px;flex-shrink:0;margin-top:1px}.toast.success{border-left:3px solid var(--accent-primary)}.toast.success .toast-icon{color:var(--accent-primary)}.toast.error{border-left:3px solid var(--error)}.toast.error .toast-icon{color:var(--error)}.toast-content{flex:1;min-width:0}.toast-title{font-weight:600;font-size:.9rem;margin-bottom:.25rem}.toast-message{font-size:.85rem;color:var(--text-secondary);line-height:1.4}.toast.fade-out{animation:fadeSlideOut .3s ease forwards}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes fadeSlideOut{0%{transform:translate(0);opacity:1}to{transform:translate(100%);opacity:0}}@media (max-width: 520px){body{padding:1rem}h1{font-size:1.5rem}main{padding:1.5rem}#button-group{flex-direction:column}#toast-container{left:1rem;right:1rem}.toast{max-width:none;min-width:0}}button:focus-visible,.checkbox-label:focus-within .checkbox-custom{outline:2px solid var(--accent-primary);outline-offset:2px}.checkbox-label:focus-within{background:var(--glass-bg)}footer{text-align:center;margin-top:1.5rem;font-size:.8rem;color:var(--text-muted)}footer a{color:var(--accent-primary);text-decoration:none;transition:color .2s ease}footer a:hover{color:var(--accent-secondary)}footer a:focus-visible{outline:2px solid var(--accent-primary);outline-offset:2px;border-radius:2px}.footer-divider{margin:0 .5rem;color:var(--text-muted)}.modal{background:transparent;border:none;padding:0;max-width:400px;width:90%;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);margin:0}.modal::backdrop{background:#000000b3;backdrop-filter:blur(4px)}.modal-content{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:16px;padding:1.5rem;box-shadow:0 8px 32px #0006}.modal-content h2{font-size:1.25rem;font-weight:600;margin-bottom:.75rem;color:var(--text-primary)}.modal-content p{color:var(--text-secondary);margin-bottom:1.5rem;line-height:1.5}.modal-actions{display:flex;gap:.75rem;justify-content:flex-end}.modal-actions button{padding:.625rem 1.25rem}.skip-link{position:absolute;top:-100px;left:50%;transform:translate(-50%);background:var(--accent-primary);color:var(--bg-primary);padding:.75rem 1.5rem;border-radius:0 0 8px 8px;font-weight:600;z-index:1000;text-decoration:none;transition:top .2s ease}.skip-link:focus{top:0;outline:none}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms;animation-iteration-count:1;transition-duration:.01ms;scroll-behavior:auto}}