.vocab-session{--vocab-paper:var(--reading-white,#fff);--vocab-cream:var(--reading-paper,#f5f1e8);--vocab-ink:var(--reading-ink,#0f172a);--vocab-muted:var(--reading-soft,#334155);--vocab-line:var(--reading-line,#e5e1d4);--vocab-green:var(--reading-accent,#17853a);--vocab-positive:var(--reading-positive,#edf9f1);z-index:40;background:var(--vocab-paper);height:100dvh;color:var(--vocab-ink);font-family:var(--reading-font,"Hiragino Sans","Noto Sans JP",system-ui,sans-serif);isolation:isolate;grid-template-rows:auto minmax(0,1fr) auto;line-height:1.6;display:grid;position:fixed;inset:0}body:has(.vocab-session){overflow:hidden}.primary-sync-pending .vocab-session{top:calc(64px + env(safe-area-inset-top,0px));height:calc(100dvh - 64px - env(safe-area-inset-top,0px))}.vocab-session *{box-sizing:border-box}.vocab-session button{cursor:pointer;font-family:inherit}.vocab-session button:focus-visible{outline:3px solid var(--vocab-green);outline-offset:3px}.vocab-header,.vocab-content,.vocab-dock{width:100%;min-width:0;max-width:480px;margin-inline:auto;padding-inline:24px}.vocab-header{padding-top:max(12px,env(safe-area-inset-top,0px));padding-bottom:12px}.vocab-toolbar{grid-template-columns:44px minmax(0,1fr) 80px;align-items:center;gap:8px;display:grid}.vocab-toolbar h1{text-align:center;margin:0;font-size:1rem;font-weight:750}.vocab-header>button,.vocab-toolbar>button:first-child{color:var(--vocab-ink);background:0 0}.vocab-audio-toggle{min-height:44px;color:var(--vocab-muted);background:0 0;border:0;justify-content:flex-end;align-items:center;gap:5px;padding:0;font-size:.7rem;display:flex}.vocab-audio-toggle svg{flex:none}.vocab-progress{color:var(--vocab-muted);font-variant-numeric:tabular-nums;align-items:center;gap:14px;margin-top:9px;font-size:.8rem;display:flex}.vocab-progress span{white-space:nowrap}.vocab-progress progress{appearance:none;background:var(--vocab-line);min-width:0;height:6px;color:var(--vocab-green);border:0;border-radius:8px;flex:1;overflow:hidden}.vocab-progress progress::-webkit-progress-bar{background:var(--vocab-line)}.vocab-progress progress::-webkit-progress-value{background:var(--vocab-green);border-radius:8px}.vocab-progress progress::-moz-progress-bar{background:var(--vocab-green);border-radius:8px}.vocab-content{overscroll-behavior-y:contain;scrollbar-gutter:stable;overflow-wrap:anywhere;min-height:0;padding-top:28px;padding-bottom:28px;overflow:clip auto}.vocab-card h2{letter-spacing:-.025em;overflow-wrap:anywhere;margin:0 0 16px;font-size:clamp(2.5rem,12vw,4rem);font-weight:800;line-height:1.15}.vocab-word-meta{border-bottom:1px solid var(--vocab-line);flex-wrap:wrap;align-items:center;gap:10px 16px;padding-bottom:24px;display:flex}.vocab-word-meta>button{background:var(--vocab-cream);width:44px;height:44px;margin-left:auto}.vocab-pos{color:var(--vocab-green);background:var(--vocab-positive);border-radius:9px;padding:3px 12px;font-size:.85rem;font-weight:700}.vocab-ipa{color:var(--vocab-muted);overflow-wrap:anywhere;min-width:0;font-size:1.1rem}.vocab-meanings{border-bottom:1px solid var(--vocab-line);padding:24px 0}.vocab-meanings ul{gap:10px;margin:0;padding:0;list-style:none;display:grid}.vocab-meanings li{font-size:1.65rem;font-weight:700;line-height:1.5}.vocab-example{border-left:3px solid var(--vocab-green);margin-top:26px;padding-left:16px}.vocab-example-heading{color:var(--vocab-muted);justify-content:space-between;align-items:center;gap:12px;font-size:.75rem;display:flex}.vocab-example-heading button{width:44px;height:44px}.vocab-example-en{margin:6px 0 8px;font-size:1.15rem;line-height:1.55}.vocab-example-ja{color:var(--vocab-muted);margin:0;font-size:.9rem;line-height:1.75}.vocab-extra{color:var(--vocab-muted);margin-top:22px;font-size:.88rem}.vocab-extra h3{margin:0 0 6px;font-size:.78rem;font-weight:650}.vocab-extra ul{margin:0;padding-left:20px;list-style:outside}.vocab-extra p{margin:0;line-height:1.8}.vocab-speak-hint{border:1px solid var(--vocab-line);background:var(--vocab-positive);min-height:44px;color:var(--vocab-green);border-radius:12px;justify-content:center;align-items:center;gap:8px;width:100%;margin-top:18px;padding:10px 14px;font-size:.85rem;display:flex}.vocab-dock{background:var(--vocab-paper);border-top:1px solid var(--vocab-line);padding-top:10px;padding-bottom:max(10px,env(safe-area-inset-bottom,0px))}.vocab-action-prompt{text-align:center;height:1.5rem;color:var(--vocab-muted);margin:0 0 8px;font-size:.8rem;line-height:1.5rem}.vocab-action-row{grid-template-columns:1fr 1fr;gap:12px;display:grid}.vocab-primary,.vocab-secondary{border:1px solid var(--vocab-green);background:var(--vocab-green);color:#fff;text-align:center;border-radius:14px;justify-content:center;align-items:center;width:100%;min-height:3.5rem;padding:10px 12px;font-size:1rem;font-weight:750;line-height:1.5;display:flex}.vocab-secondary{color:var(--vocab-ink);background:var(--vocab-paper);border-color:#b6ad9c}.vocab-primary:active,.vocab-secondary:active{filter:brightness(.95)}.vocab-reveal{grid-column:1/-1}.vocab-known{min-height:44px;color:var(--vocab-muted);text-underline-offset:3px;background:0 0;border:0;margin:4px auto 0;padding:7px 0;font-size:.75rem;line-height:1.5;text-decoration:underline;display:block}.vocab-undo-button{border:1.5px solid var(--vocab-line);background:var(--vocab-paper);min-height:44px;color:var(--vocab-muted);border-radius:999px;flex:none;align-items:center;gap:4px;margin-block:-8px;padding:0 12px;font-size:.8rem;font-weight:700;transition:opacity .2s,color .2s,border-color .2s;display:flex}.vocab-undo-button:not(:disabled){color:var(--vocab-ink);border-color:var(--vocab-muted)}.vocab-undo-button:disabled{opacity:.4;cursor:default}.vocab-sr-only{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.vocab-card-enter-next{animation:.28s cubic-bezier(.22,1,.36,1) vocab-in-right}.vocab-card-enter-back{animation:.3s cubic-bezier(.22,1,.36,1) vocab-in-left}.vocab-answer{animation:.3s cubic-bezier(.22,1,.36,1) vocab-answer-in}@keyframes vocab-in-right{0%{opacity:0;transform:translate(28px)}}@keyframes vocab-in-left{0%{opacity:0;transform:translate(-28px)}}@keyframes vocab-answer-in{0%{opacity:0;transform:translateY(10px)}}@media (prefers-reduced-motion:reduce){.vocab-card-enter-next,.vocab-card-enter-back,.vocab-answer{animation:none}}.vocab-save-error{color:#453b25;background:#fff4d9;border:1px solid #e2cda8;border-radius:12px;margin:0 0 8px;padding:10px;font-size:.8rem;line-height:1.6}.vocab-finish .vocab-content{text-align:center;flex-direction:column;padding-top:12px;padding-bottom:16px;display:flex}.vocab-finish-summary{flex:none;margin-block:auto}.vocab-finish-hero{flex-direction:column;align-items:center;display:flex}.vocab-finish-bubble{z-index:1;background:var(--vocab-paper);border:1px solid var(--vocab-line);letter-spacing:.01em;border-radius:40px;width:100%;margin:0 0 4px;padding:22px 12px;font-size:clamp(1.6rem,8vw,2.2rem);font-weight:800;line-height:1.4;position:relative;box-shadow:0 2px 3px #0f172a04,0 10px 28px #0f172a08}.vocab-finish-bubble:after{content:"";background:var(--vocab-paper);border-right:1px solid var(--vocab-line);border-bottom:1px solid var(--vocab-line);border-radius:0 0 5px;width:20px;height:20px;position:absolute;bottom:-10px;left:22%;transform:rotate(45deg)}.vocab-finish-stage{isolation:isolate;place-items:center;width:100%;height:clamp(180px,40dvh,340px);margin:4px auto 12px;display:grid;position:relative}.vocab-finish-stage:before{content:"";z-index:-1;aspect-ratio:1;background:var(--vocab-positive);border-radius:50%;width:82%;max-width:290px;position:absolute}.vocab-finish-stage:after{content:"";z-index:-1;background:var(--vocab-green);opacity:.12;border-radius:50%;width:40%;height:12px;position:absolute;bottom:0}.vocab-finish-stage img{object-fit:contain;width:100%;height:100%;min-height:0;max-height:inherit;display:block}.vocab-finish-stage .vocab-finish-robot{width:100%;height:100%;min-height:0}.vocab-finish-spark{background:var(--vocab-green);border-radius:8px;width:7px;height:23px;position:absolute;top:16%;right:5%;transform:rotate(28deg)}.vocab-finish-spark:after{content:"";background:var(--vocab-green);border-radius:8px;width:6px;height:16px;position:absolute;top:13px;left:13px;transform:rotate(42deg)}.vocab-finish-result{background:var(--vocab-positive);border:1px solid color-mix(in srgb,var(--vocab-green) 12%,transparent);border-radius:22px;margin:12px 0 0;padding:22px 12px}.vocab-finish-count{margin:0 0 8px;font-size:1.1rem;font-weight:750;line-height:1.6}.vocab-finish-count strong{color:var(--vocab-green);letter-spacing:-.035em;margin-right:4px;font-size:2.75rem;line-height:1.2}.vocab-finish-count strong span{letter-spacing:0;font-size:1.6rem}.vocab-finish-result>p:not(.vocab-finish-count){color:var(--vocab-muted);margin:5px 0 0;font-size:.85rem}.vocab-finish-result .vocab-resumed{font-size:.75rem!important}.vocab-finish-dock{padding-top:0;padding-bottom:max(20px,env(safe-area-inset-bottom,0px));border-top:0}.vocab-finish-undo{justify-content:center;min-height:44px;margin-bottom:4px;display:flex}.vocab-finish-undo button{min-height:44px;color:var(--vocab-muted);background:0 0;border:0;justify-content:center;align-items:center;gap:6px;font-size:.8rem;text-decoration:underline;display:flex}.vocab-continue{margin-top:10px}@media (width<=360px){.vocab-header,.vocab-content,.vocab-dock{padding-inline:18px}.vocab-toolbar{grid-template-columns:44px minmax(0,1fr) 74px;gap:4px}.vocab-toolbar h1{font-size:.9rem}.vocab-card h2{font-size:2.6rem}.vocab-finish-count{font-size:.9rem}.vocab-finish-count strong{font-size:2rem}}@media (height<=700px){.vocab-finish-bubble{padding-block:16px}.vocab-finish-stage{width:clamp(100px,100dvh - 424px,220px);height:clamp(100px,100dvh - 424px,220px);margin-bottom:4px}.vocab-finish-result{margin-top:8px;padding-block:14px}.vocab-finish-stage:before{width:auto;height:90%}.vocab-finish-stage:after{width:28%}}@media (height<=500px){.vocab-header{padding-top:2px;padding-bottom:6px}.vocab-progress{margin-top:2px}.vocab-content{padding-top:12px}.vocab-dock{padding-top:6px;padding-bottom:max(4px,env(safe-area-inset-bottom,0px))}.vocab-action-prompt{margin-bottom:4px}.vocab-finish-stage{width:150px;height:150px}}.vocab-break-toolbar{grid-template-columns:44px minmax(0,1fr) 44px;align-items:center;gap:8px;display:grid}.vocab-break-toolbar>button{color:var(--vocab-ink);background:0 0}.vocab-break-toolbar>p{text-align:center;margin:0;font-size:1rem;font-weight:750}.vocab-break .vocab-content{text-align:center;flex-direction:column;padding-top:8px;padding-bottom:20px;display:flex}.vocab-break-summary{flex:none;margin-block:auto}.vocab-break-summary h1{margin:0 0 22px;font-size:clamp(2rem,10vw,2.8rem);font-weight:800;line-height:1.3}.vocab-break-stage{width:min(88%,310px);margin:0 auto 38px;position:relative}.vocab-break-ring{aspect-ratio:1;position:relative}.vocab-break-ring svg{fill:none;stroke-width:18px;width:100%;height:100%;display:block}.vocab-break-track{stroke:color-mix(in srgb,var(--vocab-green) 18%,var(--vocab-paper))}.vocab-break-progress{stroke:var(--vocab-green);stroke-linecap:round}.vocab-break-fraction{white-space:nowrap;font-variant-numeric:tabular-nums;justify-content:center;align-items:baseline;gap:8px;height:max-content;margin:auto;font-weight:750;display:flex;position:absolute;inset:0}.vocab-break-fraction strong{color:var(--vocab-green);letter-spacing:-.035em;font-size:clamp(2rem,13vw,3.5rem);line-height:1.2}.vocab-break-fraction>span{font-size:clamp(1rem,7vw,1.9rem)}.vocab-break-fraction small{margin-left:2px;font-size:.75em}.vocab-break-stage>img{object-fit:contain;width:60%;height:auto;position:absolute;bottom:-10%;right:-9%}.vocab-break-done{margin:0;font-size:1.2rem;font-weight:750;line-height:1.6}.vocab-break-remaining{color:var(--vocab-muted);margin:10px 0 0;font-size:1rem;font-weight:650}.vocab-break-note{background:var(--vocab-positive);color:var(--vocab-green);border-radius:16px;margin:24px 0 0;padding:16px 12px;font-size:.9rem;font-weight:600;line-height:1.8}.vocab-break-dock{padding-top:12px;padding-bottom:max(20px,env(safe-area-inset-bottom,0px));border-top:0;gap:10px;display:grid}.vocab-break-dock .vocab-secondary{color:var(--vocab-green);border-color:var(--vocab-green)}.vocab-session a{text-decoration:none}.vocab-notice .vocab-content{text-align:center;flex-direction:column;padding-top:16px;padding-bottom:24px;display:flex}.vocab-notice-summary{flex:none;margin-block:auto}.vocab-notice-character{justify-content:flex-end;height:106px;padding-right:16px;display:flex;overflow:hidden}.vocab-notice-character img{object-fit:contain;width:150px;height:150px;display:block}.vocab-notice-card{border:1px solid var(--vocab-line);background:var(--vocab-paper);border-radius:24px;padding:30px 20px 34px;position:relative;box-shadow:0 2px 3px #0f172a04,0 10px 28px #0f172a08}.vocab-notice-icon{background:var(--vocab-positive);width:96px;height:96px;color:var(--vocab-green);border-radius:50%;place-items:center;margin:0 auto 24px;display:grid}.vocab-notice-card h1{text-wrap:balance;margin:0;font-size:1.6rem;font-weight:800;line-height:1.55}.vocab-notice-card>p{color:var(--vocab-muted);margin:18px 0 0;font-size:1rem;line-height:1.85}.vocab-notice-problem .vocab-notice-card{box-shadow:none;border:0;padding:24px 4px}.vocab-notice-problem .vocab-notice-icon{color:#a8620b;background:0 0;width:64px;height:64px;margin-bottom:24px}.vocab-notice-extra{min-height:44px;color:var(--vocab-green);text-underline-offset:4px;justify-content:center;align-items:center;font-size:.9rem;display:flex;text-decoration:underline!important}.vocab-share-prompt{text-align:left;border-block:1px solid var(--vocab-line);flex:none;gap:12px;margin-top:24px;padding:18px 36px 14px 0;display:flex;position:relative}.vocab-share-icon{color:var(--vocab-green);flex:none;margin-top:4px}.vocab-share-prompt>div{min-width:0}.vocab-share-prompt p{color:var(--vocab-muted);margin:4px 0 0;font-size:.8rem;line-height:1.7}.vocab-share-prompt .vocab-share-title{color:var(--vocab-ink);margin:0;font-size:.9rem;font-weight:750}.vocab-share-prompt a{min-height:44px;color:var(--vocab-green);text-underline-offset:4px;align-items:center;gap:4px;font-size:.9rem;font-weight:700;text-decoration:underline;display:flex}.vocab-share-prompt>button{width:44px;height:44px;color:var(--vocab-muted);background:0 0;border:0;place-items:center;display:grid;position:absolute;top:4px;right:-8px}.vocab-finish .vocab-content:has(.vocab-share-prompt) .vocab-finish-stage{height:clamp(140px,28dvh,240px)}@media (height<=700px){.vocab-notice-character{height:76px}.vocab-notice-character img{width:120px;height:120px}.vocab-notice-card{padding:22px 16px}.vocab-notice-icon{width:72px;height:72px;margin-bottom:16px}.vocab-notice-card h1{font-size:1.4rem}.vocab-notice-card>p{margin-top:12px}.vocab-break-summary h1{margin-bottom:14px;font-size:2rem}.vocab-break-stage{width:min(70%,210px);margin-bottom:26px}.vocab-break-note{margin-top:14px;padding:12px}.vocab-break .vocab-content{padding-bottom:12px}}@media (height<=580px){.vocab-break-stage{width:min(80%,10rem)}.vocab-break-fraction strong{font-size:2rem}.vocab-break-fraction>span{font-size:1rem}.vocab-break-summary h1{margin-bottom:10px;font-size:1.7rem}.vocab-break-done{font-size:1rem}.vocab-break-remaining{margin-top:4px;font-size:.9rem}.vocab-break-note{margin-top:10px;padding:10px;font-size:.8rem}}