:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#e8eaf0;--surface:#fff;--text:#171717;--text-muted:#17171773;--border:#505a7838;--accent:#2aabee;--card-shadow:0 2px 8px #00000012;--tile-shadow:0 2px 6px #00000014;--tile-bg-from:#f8f9fb;--tile-bg-to:#f2f4f7;--flashcard-surface:#e9ecf0;--flashcard-shell-top:#edf0f3;--flashcard-shell-bottom:#dfe3e8;--flashcard-shadow:#0e121a2e;font-family:Segoe UI,sans-serif}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#101216;--surface:#1a1f27;--text:#f2f3f5;--text-muted:#f2f3f573;--border:#fff3;--accent:#38bdf8;--card-shadow:0 2px 8px #00000047;--tile-shadow:0 2px 6px #0000004d;--tile-bg-from:#282c34;--tile-bg-to:#191d25;--flashcard-surface:#31353d;--flashcard-shell-top:#3c4147;--flashcard-shell-bottom:#171b22;--flashcard-shadow:#0000007a}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}:focus,:focus-visible{box-shadow:none!important;outline:none!important}html,body,#root{overscroll-behavior-y:none;-webkit-text-size-adjust:100%;min-height:100%;margin:0;overflow-x:hidden}body{background:var(--bg);color:var(--text);touch-action:pan-y}.page{max-width:760px;margin:0 auto;padding:20px 16px}.page.decks-page-shell{flex-direction:column;height:100dvh;max-height:100dvh;display:flex;overflow:hidden}.topbar{touch-action:none;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.topbar-actions{align-items:center;gap:8px;display:inline-flex;position:relative}.title{margin:0;font-size:1.55rem}.back-to-decks-btn{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:999px;align-items:center;gap:8px;padding:8px 14px;font-size:.98rem;font-weight:700;text-decoration:none;display:inline-flex}.back-to-decks-btn:hover{border-color:color-mix(in srgb, var(--accent) 45%, var(--border))}.content{touch-action:pan-y;overscroll-behavior-y:auto;gap:12px;margin-top:14px;display:grid}.decks-page-shell .topbar,.decks-page-shell .content{flex-shrink:0}.decks-page-shell .content{flex-direction:column;flex:1;min-height:0;display:flex;overflow:hidden}.sync-debug-clear{appearance:none;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:8px;padding:5px 8px;font-size:.85rem}.sync-debug-list{gap:4px;max-height:190px;margin-top:8px;display:grid;overflow:auto}.sync-debug-line{gap:8px;margin:0;font-size:.82rem;line-height:1.3;display:flex}.sync-debug-time{opacity:.65;min-width:58px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.card{border:1px solid var(--border);background:var(--surface);box-shadow:var(--card-shadow);border-radius:16px;padding:12px}.stack{gap:10px;display:grid}.row{flex-wrap:wrap;gap:10px;display:flex}.btn{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:10px;padding:10px 14px;font-size:1rem}.btn-danger{background:#c0392b}.muted{opacity:.75;margin:0}.blocked-access-card{max-width:680px}.deck-tile{--deck-title-font-size:1.02em;--deck-text-secondary:color-mix(in srgb, var(--text) 66%, transparent);--deck-text-meta:color-mix(in srgb, var(--text) 46%, transparent);--deck-progress-rail-width:8px;--deck-progress-rail-curve-width:17px;--deck-progress-rail-fill-start:#8797a4;--deck-progress-rail-fill-end:#65737f;text-align:left;background:linear-gradient(180deg, color-mix(in srgb, var(--surface) 86%, #2b3440 14%), color-mix(in srgb, var(--surface) 88%, #0d1117 12%));width:100%;color:var(--text);padding:12px 12px 12px calc(var(--deck-progress-rail-width) + 12px);box-shadow:0 0 0 1px color-mix(in srgb, var(--deck-progress-solid,var(--text)) 30%, var(--border)), 0 16px 30px #00000057, 0 3px 0 #0003, inset 0 1px 0 #ffffff1a;border:none;border-radius:14px;gap:8px;transition:box-shadow .18s;display:grid;position:relative;overflow:hidden}.deck-tile-progress-rail{z-index:0;width:var(--deck-progress-rail-curve-width);color:inherit;cursor:pointer;appearance:none;background:0 0;border:0;padding:0;position:absolute;inset:0 auto 0 0;overflow:hidden}.deck-tile-progress-rail:after{content:"";width:var(--deck-progress-rail-curve-width);pointer-events:none;opacity:0;background:linear-gradient(90deg, color-mix(in srgb, var(--deck-progress-solid,var(--accent)) 58%, transparent) 0, color-mix(in srgb, var(--deck-progress-solid,var(--accent)) 30%, transparent) 48%, transparent 100%);filter:saturate(1.12);position:absolute;inset:0 auto 0 0;transform:translateY(16%)}.deck-tile-progress-rail:focus-visible{outline:2px solid color-mix(in srgb, var(--deck-progress-solid,var(--accent)) 58%, transparent);outline-offset:-3px}.deck-tile-progress-rail-svg{width:100%;height:100%;display:block}.deck-tile-progress-rail-track{fill:color-mix(in srgb, #a8b7c4 10%, var(--surface) 90%)}.deck-tile-progress-rail-fill{transform-box:fill-box;transform-origin:bottom;transition:y .5s cubic-bezier(.22,.9,.36,1),height .5s cubic-bezier(.22,.9,.36,1)}.deck-tile-progress-rail.progress-recognized:after{animation:1.8s ease-out deck-progress-rail-recognition}.deck-tile-progress-rail.progress-recognized .deck-tile-progress-rail-fill{animation:1.8s ease-out deck-progress-fill-recognition}.deck-tile-progress-rail-edge{fill:none;stroke:#c5d4e02e;stroke-width:1px;vector-effect:non-scaling-stroke}.deck-tile-progress-rail-label{top:50%;left:calc(var(--deck-progress-rail-width) / 2);z-index:3;color:#f5faffeb;letter-spacing:0;font-variant-numeric:tabular-nums;text-align:center;text-shadow:0 1px 2px #000c;opacity:0;pointer-events:none;transform-origin:50%;white-space:nowrap;background:#070a0e85;border-radius:999px;min-width:34px;padding:3px 6px;font-size:.7rem;font-weight:800;line-height:1;transition:opacity .14s;position:absolute;transform:translate(-50%,-50%)rotate(-90deg)}.deck-tile-progress-rail.labels-visible .deck-tile-progress-rail-label{opacity:1}.deck-tile-header,.deck-tile-progress-action{z-index:1;position:relative}@keyframes deck-progress-rail-recognition{0%{opacity:0;transform:translateY(18%)}16%{opacity:.95}54%{opacity:.66;transform:translateY(0)}to{opacity:0;transform:translateY(-4%)}}@keyframes deck-progress-fill-recognition{0%{filter:none;transform:scaleY(var(--deck-progress-recognition-from-scale,1))}18%{filter:brightness(1.22) saturate(1.18) drop-shadow(0 0 11px color-mix(in srgb, var(--deck-progress-solid,var(--accent)) 58%, transparent));transform:scaleY(1)}58%{filter:drop-shadow(0 0 9px color-mix(in srgb, var(--deck-progress-solid,var(--accent)) 46%, transparent));transform:scaleY(1)}to{filter:none;transform:scaleY(1)}}@media (prefers-reduced-motion:reduce){.deck-tile-progress-rail.progress-recognized:after,.deck-tile-progress-rail.progress-recognized .deck-tile-progress-rail-fill{animation:none}}@keyframes skeleton-shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.deck-tile.skeleton{pointer-events:none;min-height:90px}.skeleton-line{background:linear-gradient(90deg, var(--border) 25%, color-mix(in srgb, var(--border) 50%, var(--surface)) 50%, var(--border) 75%);background-size:200% 100%;border-radius:6px;animation:1.4s ease-in-out infinite skeleton-shimmer}.skeleton-line-title{width:60%;height:18px}.skeleton-line-short{width:35%;height:13px;margin-top:4px}.deck-tile:hover{box-shadow:0 0 0 1px color-mix(in srgb, var(--deck-progress-solid,var(--accent)) 52%, var(--border)), 0 18px 34px #0000006b, 0 3px 0 #0003, inset 0 1px 0 #ffffff24}.deck-tile-header{justify-content:space-between;align-items:flex-start;gap:10px;display:flex}.deck-tile-heading{flex:1;gap:4px;min-width:0;display:grid}.deck-tile-title-row{justify-content:space-between;align-items:center;gap:7px;min-width:0;display:flex}.deck-tile-title-main{flex:1;align-items:center;gap:7px;min-width:0;display:flex}.deck-tile-title-icon{color:color-mix(in srgb, #f4b740 72%, var(--text));flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.deck-tile-title-icon svg{width:1em;height:1em;font-size:var(--deck-title-font-size)}.deck-tile-pin-btn{border:1px solid color-mix(in srgb, var(--border) 70%, transparent);background:color-mix(in srgb, var(--text) 4%, transparent);width:24px;height:24px;color:color-mix(in srgb, var(--text) 42%, transparent);cursor:pointer;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;padding:0;transition:background .15s,border-color .15s,color .15s,transform .15s;display:inline-flex}.deck-tile-pin-btn svg{width:14px;height:14px}.deck-tile-pin-btn:hover{color:var(--text);border-color:color-mix(in srgb, var(--deck-progress-solid,var(--accent)) 38%, var(--border));background:color-mix(in srgb, var(--deck-progress-solid,var(--accent)) 8%, transparent)}.deck-tile-pin-btn.pinned{color:#f6c862;border-color:color-mix(in srgb, #f6c862 54%, var(--border));background:linear-gradient(180deg, #f6c86224, #f08c0017), color-mix(in srgb, var(--surface) 82%, #000 18%);box-shadow:0 0 14px #f6c86224,inset 0 1px #ffffff1a}.deck-tile-pin-btn.pinned:hover{transform:translateY(-1px)}.deck-tile-status{min-width:0;color:var(--deck-text-secondary);text-overflow:ellipsis;white-space:nowrap;font-size:.76rem;line-height:1.3;overflow:hidden}.deck-tile-status.downloading{white-space:normal;text-overflow:unset;max-width:min(100%,32ch);overflow:visible}.deck-tile-status.ready{color:var(--deck-text-secondary)}.deck-tile-status.downloading{color:color-mix(in srgb, var(--accent) 70%, var(--text) 30%)}.deck-tile-status.stale{color:color-mix(in srgb, #f08c00 78%, var(--text) 22%)}.deck-tile-status.error{color:color-mix(in srgb, #e5484d 84%, var(--text) 16%)}.deck-tile h3{color:var(--text);font-size:var(--deck-title-font-size);text-overflow:ellipsis;white-space:nowrap;letter-spacing:-.01em;flex:1;min-width:0;margin:0;font-weight:700;line-height:1.15;overflow:hidden}.deck-tile-header-actions{flex-shrink:0;align-items:center;gap:4px;display:flex}.deck-tile-header-actions:empty{display:none}.deck-tile-menu-btn{border:1px solid color-mix(in srgb, var(--border) 36%, transparent);background:color-mix(in srgb, var(--text) 2%, transparent);width:24px;height:24px;color:color-mix(in srgb, var(--text) 34%, transparent);cursor:pointer;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;padding:0;transition:background .15s,border-color .15s,color .15s;display:inline-flex}.deck-tile-menu-btn:hover{color:color-mix(in srgb, var(--text) 72%, transparent);border-color:color-mix(in srgb, var(--deck-progress-solid,var(--accent)) 24%, var(--border));background:color-mix(in srgb, var(--deck-progress-solid,var(--accent)) 4%, transparent)}.deck-tile-menu-btn:disabled{opacity:.3;cursor:default;pointer-events:none}.deck-tile-menu-btn svg{width:15px;height:15px}.deck-tile-progress-action{grid-template-columns:minmax(0,1fr) 36px;align-items:stretch;gap:8px;display:grid}.deck-tile-progress-meter{border:1px solid color-mix(in srgb, var(--deck-progress-solid,var(--accent)) 22%, var(--border));background:color-mix(in srgb, var(--text) 5%, transparent);border-radius:12px;min-height:36px;position:relative;overflow:hidden;box-shadow:inset 0 1px #ffffff0d,0 2px 6px #00000014}.deck-tile-progress-meter-fill{background:color-mix(in srgb, var(--deck-progress-solid,#63b8ea) 76%, var(--surface) 24%);opacity:.62;border-radius:11px;transition:width .5s cubic-bezier(.22,.9,.36,1);position:absolute;inset:0 auto 0 0}.deck-tile-progress-meter-fill:after{content:none}.deck-tile-progress-meter-content{z-index:1;justify-content:space-between;align-items:center;gap:12px;min-height:36px;padding:0 12px;display:flex;position:relative}.deck-tile-progress-meter-value{color:color-mix(in srgb, #fff 72%, var(--deck-progress-solid,#8fd7ad) 28%);font-variant-numeric:tabular-nums;opacity:.82;white-space:nowrap;align-items:baseline;gap:4px;margin-left:auto;font-size:.72rem;font-weight:600;display:inline-flex}.deck-tile-progress-meter-label{color:color-mix(in srgb, #fff 42%, var(--deck-progress-solid,#8fd7ad) 58%);font-weight:560}.deck-tile-progress-meter-count{color:inherit}.deck-tile-btn-icon{flex-shrink:0;width:18px;height:18px}.deck-group-title{margin:0;font-size:1rem;font-weight:700}.decks-toolbar{flex-shrink:0;align-items:center;gap:8px;display:flex}.decks-page{background:color-mix(in srgb, var(--bg) 94%, #000 6%);touch-action:none;overscroll-behavior-y:contain;flex-direction:column;height:100%;min-height:0;display:flex;overflow:hidden}:root[data-theme=dark] .decks-page{background:color-mix(in srgb, var(--bg) 62%, #05070a 38%)}:root[data-theme=dark] .deck-tile{background:linear-gradient(180deg, color-mix(in srgb, var(--surface) 80%, #323942 20%) 0%, color-mix(in srgb, var(--surface) 84%, #12161c 16%) 100%);box-shadow:0 0 0 1px color-mix(in srgb, #9aadbd 36%, var(--deck-progress-solid,var(--accent)) 18%), 0 18px 34px #0000006b, 0 4px 0 #0003, inset 0 1px 0 #ffffff18}:root[data-theme=dark] .deck-tile:hover{box-shadow:0 0 0 1px color-mix(in srgb, #afc2cf 42%, var(--deck-progress-solid,var(--accent)) 22%), 0 20px 38px #0000007a, 0 4px 0 #00000038, inset 0 1px 0 #ffffff1f}.decks-list-scroll{overscroll-behavior-y:contain;-webkit-overflow-scrolling:touch;touch-action:pan-y;flex:1;min-height:0;margin:-3px -2px -8px;padding:3px 2px 8px;overflow:hidden auto}.decks-list-content{padding-bottom:max(4px, env(safe-area-inset-bottom));gap:18px}.decks-search-wrap{flex:1;align-items:center;min-width:0;display:flex;position:relative}.decks-search-icon{width:16px;height:16px;color:color-mix(in srgb, var(--text) 42%, transparent);pointer-events:none;position:absolute;left:12px}.decks-search-input{appearance:none;border:1px solid var(--border);background:linear-gradient(135deg, color-mix(in srgb, var(--accent) 8%, transparent), color-mix(in srgb, var(--text) 3%, transparent)), var(--surface);width:100%;min-height:36px;color:var(--text);border-radius:10px;outline:none;padding:0 12px 0 36px;font-size:.9rem;font-weight:650;transition:border-color .15s,box-shadow .15s,background .15s}.decks-search-input::placeholder{color:color-mix(in srgb, var(--text) 42%, transparent);font-weight:650}.decks-search-input:focus{border-color:color-mix(in srgb, var(--accent) 70%, var(--border));box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 15%, transparent);background:linear-gradient(135deg, color-mix(in srgb, var(--accent) 12%, transparent), color-mix(in srgb, var(--text) 4%, transparent)), var(--surface)}.decks-search-input::-webkit-search-cancel-button{-webkit-appearance:none;background:color-mix(in srgb, var(--text) 42%, transparent);cursor:pointer;border-radius:50%;width:14px;height:14px;-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M2 2l12 12M14 2L2 14' stroke='%23fff' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M2 2l12 12M14 2L2 14' stroke='%23fff' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");-webkit-mask-size:contain;mask-size:contain;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat}.deck-icon-btn{border:1px solid var(--border);background:var(--surface);width:36px;height:36px;color:color-mix(in srgb, var(--text) 72%, transparent);cursor:pointer;border-radius:10px;justify-content:center;align-items:center;padding:0;transition:border-color .15s,color .15s;display:flex}.deck-icon-btn svg{width:18px;height:18px}.deck-icon-btn:disabled{opacity:.4;cursor:default}.deck-icon-btn.active{border-color:var(--accent);color:var(--accent)}@keyframes deck-spin{to{transform:rotate(360deg)}}.deck-icon-btn svg.spinning,.deck-sort-option-icon.spinning{animation:.8s linear infinite deck-spin}.deck-sort-wrap{position:relative}.deck-sort-dropdown{z-index:10;background:var(--surface);border:1px solid var(--border);border-radius:10px;flex-direction:column;min-width:210px;display:flex;position:absolute;top:calc(100% + 6px);right:0;overflow:hidden;box-shadow:0 4px 16px #00000024}.deck-sort-option{color:var(--text);text-align:left;cursor:pointer;background:0 0;border:0;padding:10px 14px;font-size:.9rem;transition:background .12s}.deck-sort-option:hover{background:color-mix(in srgb, var(--border) 35%, transparent)}.deck-sort-option:disabled{color:color-mix(in srgb, var(--text) 48%, transparent);cursor:default}.deck-sort-option:disabled:hover{background:0 0}.deck-sort-option.active{color:var(--accent);font-weight:600}.deck-sort-option{justify-content:space-between;align-items:center;gap:8px;display:flex}.deck-sort-option-content{align-items:center;gap:10px;min-width:0;display:inline-flex}.deck-sort-dir{opacity:.8;font-size:.85rem}.deck-sort-option-icon{opacity:.82;flex-shrink:0;width:16px;height:16px}.deck-sort-section-label{border-top:1px solid color-mix(in srgb, var(--border) 72%, transparent);color:color-mix(in srgb, var(--text) 48%, transparent);letter-spacing:.04em;text-transform:uppercase;margin-top:4px;padding:8px 14px 6px;font-size:.72rem;font-weight:700}.deck-catalog-btn{border:1px dashed var(--border);color:var(--text);cursor:pointer;text-align:center;opacity:.7;background:0 0;border-radius:10px;width:100%;padding:10px 14px;font-size:.88rem;transition:opacity .15s,border-color .15s}.deck-catalog-btn:hover{opacity:1;border-color:color-mix(in srgb, var(--accent) 50%, var(--border))}.deck-catalog-title{margin:0;font-size:1.05rem;font-weight:700}.deck-catalog-search-wrap{align-items:center;display:flex;position:relative}.deck-catalog-search-icon{width:15px;height:15px;color:color-mix(in srgb, var(--text) 45%, transparent);pointer-events:none;flex-shrink:0;position:absolute;left:11px}.deck-catalog-search{appearance:none;background:color-mix(in srgb, var(--text) 5%, var(--surface));border:1px solid var(--border);width:100%;color:var(--text);border-radius:10px;outline:none;padding:8px 12px 8px 34px;font-size:.9rem;transition:border-color .15s,box-shadow .15s}.deck-catalog-search::placeholder{color:color-mix(in srgb, var(--text) 40%, transparent)}.deck-catalog-search:focus{border-color:color-mix(in srgb, var(--accent) 70%, var(--border));box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 15%, transparent)}.deck-catalog-search::-webkit-search-cancel-button{-webkit-appearance:none;background:color-mix(in srgb, var(--text) 35%, transparent);cursor:pointer;border-radius:50%;width:14px;height:14px;-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M2 2l12 12M14 2L2 14' stroke='%23fff' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M2 2l12 12M14 2L2 14' stroke='%23fff' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");-webkit-mask-size:contain;mask-size:contain;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat}.deck-catalog-tile{--fill-pct:0%;border:1px solid var(--border);background:linear-gradient(to right, color-mix(in srgb, var(--accent) 18%, var(--surface)) var(--fill-pct), var(--surface) var(--fill-pct));border-radius:12px;align-items:center;gap:10px;padding:12px 14px;transition:background .3s,border-color .2s;display:flex}.deck-catalog-tile.downloading{border-color:color-mix(in srgb, var(--accent) 50%, var(--border))}.deck-catalog-tile.done{border-color:color-mix(in srgb, var(--accent) 50%, var(--border));background:color-mix(in srgb, var(--accent) 12%, var(--surface))}.deck-catalog-tile-main{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.deck-catalog-tile-name{white-space:nowrap;text-overflow:ellipsis;font-size:.95rem;font-weight:600;overflow:hidden}.deck-catalog-tile-count{font-size:.8rem}.deck-catalog-tile-action{flex-shrink:0}.deck-catalog-dl-btn{padding:6px 12px;font-size:.85rem}.deck-catalog-progress{text-align:right;flex-direction:column;gap:1px;font-size:.8rem;display:flex}.deck-catalog-done{font-size:.85rem}@keyframes decks-list-in{0%{opacity:0}to{opacity:1}}.decks-list-animated{animation:.2s forwards decks-list-in}.deck-tags-row{flex-wrap:wrap;gap:6px;display:flex}.deck-tag{border:1px solid color-mix(in srgb, 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