html,body{margin:0;padding:0}body{display:flex;flex-direction:column;min-height:100vh}.site-footer{margin-top:auto;padding:1rem 0;background:#fff;border-top:1px solid #e5e7eb}.footer-inner{display:flex;align-items:center;gap:.75rem;width:100%;max-width:1100px;margin:0 auto;padding:0 1.5rem;box-sizing:border-box}.footer-logos{display:flex;align-items:center;gap:1rem}.footer-logo{height:38px;width:auto;object-fit:contain}.footer-divider{color:#9ca3af;font-size:1.1rem;margin-left:auto}.footer-details-link{color:#4a90d9;text-decoration:none;font-size:.875rem;font-weight:500;transition:color .2s}.footer-details-link:hover{color:#357abd;text-decoration:underline}body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#1f2937;background:#f7f8fa;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-feature-settings:"cv11","ss01";letter-spacing:-.005em}.main-content{display:flex;flex-direction:column;align-items:center;text-align:center;width:100%;max-width:1100px;padding:2rem 1rem;box-sizing:border-box;margin:0 auto}h1{margin:clamp(1rem,3vh,2.5rem) 0;font-size:clamp(1.6rem,3.5vw,2.25rem);font-weight:700;letter-spacing:-.02em;color:#111827;text-align:center;word-wrap:break-word}#qrcode{max-width:100%;display:flex;justify-content:center;align-items:center;width:min(550px,80vw,50vh);height:min(550px,80vw,50vh);min-width:min(280px,80vw);min-height:min(280px,80vw)}#qrcode img,#qrcode canvas{width:100%!important;height:100%!important;max-width:min(550px,80vw,50vh)!important;max-height:min(550px,80vw,50vh)!important}#code{font-size:clamp(18px,4vw,26px);font-weight:700;font-style:italic;margin:clamp(1rem,2vh,2rem) 0;word-break:break-all;max-width:90vw;text-align:center;min-height:1.5em}.qr-loading{width:60px;height:60px;border:5px solid #e0e0e0;border-top-color:#4a90d9;border-radius:50%;animation:spin .8s linear infinite}@media(max-width:480px){.qr-loading{width:40px;height:40px}body{padding:.5rem}.main-content{padding:0 .5rem}}.upload-link{display:inline-block;padding:.75rem 1.5rem;background:#4a90d9;color:#fff;text-decoration:none;border-radius:8px;font-weight:500;transition:background .2s;margin-top:1rem}.upload-link:hover{background:#357abd}.upload-container{width:100%;max-width:500px;padding:0 1rem;box-sizing:border-box}.dropzone{border:3px dashed #ccc;border-radius:12px;padding:2rem;text-align:center;transition:all .3s ease;background:#fafafa;cursor:pointer}.dropzone:hover,.dropzone.dragover{border-color:#4a90d9;background:#f0f7ff}.dropzone.has-file{border-color:#4caf50;background:#f0fff0}.dropzone-content{display:flex;flex-direction:column;align-items:center;gap:.5rem}.upload-icon{color:#888;margin-bottom:.5rem}.dropzone.dragover .upload-icon{color:#4a90d9}.or-text{color:#888;font-size:.9rem;margin:.5rem 0}.file-select-btn{background:#4a90d9;color:#fff;padding:.75rem 1.5rem;border-radius:6px;cursor:pointer;transition:background .2s;font-weight:500}.file-select-btn:hover{background:#357abd}.file-limit{color:#888;font-size:.85rem;margin-top:.5rem}.file-info{margin-top:1rem;padding:1rem;background:#e8f5e9;border-radius:8px;border:1px solid #c8e6c9}.file-details{display:flex;align-items:center;gap:1rem}.file-name{font-weight:500;flex:1;word-break:break-all}.file-size{color:#666;font-size:.9rem}.remove-btn{background:#ff5252;color:#fff;border:none;width:28px;height:28px;border-radius:50%;cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center;transition:background .2s}.remove-btn:hover{background:#d32f2f}.code-section{margin-top:1rem;display:flex;flex-direction:column;gap:.5rem}.code-section label{font-weight:500;color:#333}.code-section input{padding:.75rem 1rem;border:2px solid #ddd;border-radius:8px;font-size:1rem;transition:border-color .2s;height:52px;box-sizing:border-box}.code-section input:focus{outline:none;border-color:#4a90d9}.upload-btn{width:100%;margin-top:1.5rem;padding:1rem;background:#4caf50;color:#fff;border:none;border-radius:8px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:.5rem;height:60px}.upload-btn:hover:not(:disabled){background:#43a047}.upload-btn:disabled{background:#bbb;cursor:not-allowed}.spinner{width:20px;height:20px;border:3px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.status-message{margin-top:1rem;padding:1rem;border-radius:8px;text-align:center;font-weight:500}.status-message.success{background:#e8f5e9;color:#2e7d32;border:1px solid #c8e6c9}.status-message.error{background:#ffebee;color:#c62828;border:1px solid #ffcdd2}.progress-container{margin-top:1rem;background:#e0e0e0;border-radius:10px;overflow:hidden;position:relative;height:24px}.progress-bar{height:100%;background:linear-gradient(90deg,#4caf50,#8bc34a);width:0%;transition:width .3s ease}.progress-text{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-weight:600;font-size:.85rem;color:#333}.hidden{display:none!important}.wide-content{max-width:1100px;margin:0 auto}.dual-container{display:flex;gap:2rem;width:100%;flex-wrap:wrap;justify-content:center;align-items:stretch}.panel{flex:1;min-width:320px;max-width:500px;background:#fff;border-radius:12px;box-shadow:0 2px 12px #00000014;padding:1.5rem;box-sizing:border-box;display:flex;flex-direction:column}.panel h2{margin:0 0 1.5rem;font-size:1.3rem;color:#333;text-align:center}.upload-container,.download-container{display:flex;flex-direction:column;flex:1}.download-container{gap:1.5rem}.download-icon-wrapper{display:flex;justify-content:center;padding:2rem 0;flex:1;align-items:center}.download-icon{color:#4a90d9;width:128px;height:128px}.input-section{display:flex;flex-direction:column;gap:.5rem}.input-section label{font-weight:500;color:#333}.input-section input{padding:.75rem 1rem;border:2px solid #ddd;border-radius:8px;font-size:1rem;transition:border-color .2s;height:52px;box-sizing:border-box}.input-section input:focus{outline:none;border-color:#4a90d9}.download-btn{width:100%;padding:1rem;background:#4a90d9;color:#fff;border:none;border-radius:8px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:.5rem;height:60px}.download-btn:hover:not(:disabled){background:#357abd}.download-btn:disabled{background:#bbb;cursor:not-allowed}.sessions-card{width:100%;max-width:1100px;margin:1.5rem auto 0;background:#fff;border:1px solid #e5e7eb;border-radius:12px;box-shadow:0 1px 3px #0000000a,0 1px 2px #00000008;padding:1.25rem 1.5rem;box-sizing:border-box;text-align:left}.sessions-card-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:1rem}.sessions-card-title{display:inline-flex;align-items:center;gap:.5rem;color:#6b7280;font-size:.78rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase}.sessions-card-title svg{flex-shrink:0}.sessions-card-meta{color:#9ca3af;font-size:.85rem}.sessions-list{display:flex;flex-direction:column;gap:.6rem}.sessions-empty{margin:0;padding:1.25rem 0;color:#9ca3af;text-align:center;font-size:.95rem}.session-placeholder{position:relative}.session-placeholder .sessions-empty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:0;pointer-events:none;background:#fbfbfca6;backdrop-filter:blur(1px);border-radius:10px;font-weight:500;color:#6b7280}.sessions-empty.sessions-error{color:#c62828}.session-item{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.85rem 1rem;background:#fafafa;border:1px solid #e5e7eb;border-radius:10px;transition:background .15s ease,border-color .15s ease}.session-item:hover{background:#f4f6f8;border-color:#d1d5db}.session-info{min-width:0;flex:1}.session-title{margin:0 0 .2rem;font-size:1.05rem;font-weight:600;color:#1f2937;font-family:JetBrains Mono,ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.04em;word-break:break-all}.session-meta{margin:.35rem 0 0;padding:0;font-size:.85rem;color:#6b7280;display:flex;flex-direction:column;gap:.15rem}.session-meta-row{display:grid;grid-template-columns:7rem 1fr;gap:.5rem;align-items:baseline}.session-meta-row dt{margin:0;color:#9ca3af;font-weight:500;text-transform:none}.session-meta-row dd{margin:0;color:#4b5563;font-weight:500;word-break:break-word}.session-sep{display:none}.session-creator{font-weight:500;color:#4b5563}.session-players{flex-shrink:0;display:inline-flex;align-items:baseline;gap:.2rem;font-family:JetBrains Mono,ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:1.35rem;font-weight:600;color:#1f2937;font-variant-numeric:tabular-nums;padding:0 .25rem;min-width:3.5rem;justify-content:center}.session-players-sep{color:#9ca3af;font-weight:500}.session-players-max{color:#6b7280;font-weight:500}.session-qr-btn{flex-shrink:0;background:#4a90d9;color:#fff;border:none;width:38px;height:38px;border-radius:8px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:background .2s}.session-qr-btn:hover{background:#357abd}.session-qr-btn:focus-visible{outline:2px solid #4a90d9;outline-offset:2px}.session-qr-btn:disabled,.session-qr-btn[aria-disabled=true]{background:#cbd5e1;color:#f1f5f9;cursor:not-allowed;opacity:.7}.session-qr-btn:disabled:hover,.session-qr-btn[aria-disabled=true]:hover{background:#cbd5e1}.session-players-full .session-players-current{color:#c62828}.session-players-full .session-players-sep,.session-players-full .session-players-max{color:#ef9a9a}.session-qr-overlay{position:fixed;inset:0;background:#0f172a99;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem;box-sizing:border-box}.session-qr-modal{position:relative;background:#fff;border-radius:14px;padding:1.5rem;box-shadow:0 20px 50px #00000040;max-width:100%;max-height:100%;overflow:auto;display:flex;flex-direction:column;align-items:center;gap:1rem}.session-qr-canvas{width:500px;height:500px;max-width:calc(100vw - 4rem);max-height:calc(100vh - 8rem);display:flex;align-items:center;justify-content:center}.session-qr-canvas img,.session-qr-canvas canvas{width:100%!important;height:100%!important;max-width:500px;max-height:500px}.session-qr-payload{margin:0;font-family:JetBrains Mono,ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:1rem;color:#1f2937;word-break:break-all;text-align:center}.session-qr-close{position:absolute;bottom:.75rem;right:.75rem;width:36px;height:36px;border-radius:50%;border:none;background:transparent;color:#6b7280;font-size:1.5rem;line-height:1;cursor:pointer;transition:background .15s,color .15s}.session-qr-close:hover{background:#f3f4f6;color:#111827}.filemanager-icon{position:fixed;top:1rem;right:1rem;width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;background:#4a90d9;color:#fff;border-radius:8px;text-decoration:none;box-shadow:0 1px 3px #00000014;transition:background .2s,transform .15s;z-index:50}.filemanager-icon:hover{background:#357abd;transform:translateY(-1px)}.filemanager-icon:focus-visible{outline:2px solid #4a90d9;outline-offset:2px}@media(max-width:600px){.sessions-card{padding:1rem}.session-item{padding:.75rem}.session-title{font-size:1rem}}@media(max-width:1024px){.dual-container{flex-direction:column;align-items:center}.panel{width:100%;max-width:500px}}@media(max-width:768px){.main-content{min-height:100vh;padding:1rem .5rem 2rem;margin:0 auto}.main-content.wide-content{justify-content:flex-start;min-height:auto;padding-top:2rem}.dual-container{gap:1.5rem}.panel{min-width:unset;width:100%}}.session-item-skeleton{pointer-events:none;background:#fbfbfc;border-style:dashed;border-color:#e5e7eb}.session-item-skeleton:hover{background:#fbfbfc;border-color:#e5e7eb}.skeleton{display:block;border-radius:6px;background:linear-gradient(90deg,#eef0f3,#f6f7f9,#eef0f3);background-size:200% 100%;animation:skeleton-shimmer 1.4s ease-in-out infinite}.skeleton-title{width:7rem;height:1.05rem;margin-bottom:.55rem}.skeleton-label{width:5rem;height:.75rem}.skeleton-value{width:60%;max-width:12rem;height:.75rem}.skeleton-btn{flex-shrink:0;width:38px;height:38px;border-radius:8px}@keyframes skeleton-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}