:root{--bg: #eef0f8;--bg-field-1: #d5d8de;--bg-field-2: #e3dfda;--bg-field-3: #dadee4;--surface: #ffffff;--surface-2: #eceef1;--text: #14161f;--text-dim: #62697a;--border: rgba(20, 22, 31, .1);--accent: #3f444d;--accent-2: #565c66;--accent-contrast: #ffffff;--danger: #e0522f;--success: #2fa36b;--radius-lg: 28px;--radius-md: 18px;--radius-sm: 12px;--focus: #14161f;--glass-bg: linear-gradient(160deg, rgba(255, 255, 255, .72), rgba(255, 255, 255, .46));--glass-border: rgba(255, 255, 255, .75);--glass-shadow: inset 0 1px 0 rgba(255, 255, 255, .95), inset 0 -1px 0 rgba(255, 255, 255, .35), 0 24px 60px -24px rgba(20, 22, 31, .42);--glass-sheen: linear-gradient(150deg, rgba(255, 255, 255, .3) 0%, rgba(255, 255, 255, 0) 38%);--segthumb-bg: linear-gradient(160deg, rgba(255, 255, 255, .92), rgba(255, 255, 255, .66));--segthumb-border: rgba(255, 255, 255, .9);--segthumb-shadow: inset 0 1px 0 rgba(255, 255, 255, 1), inset 0 -1px 0 rgba(255, 255, 255, .5), 0 10px 22px -10px rgba(18, 20, 24, .45);--solid-grad: linear-gradient(150deg, #565c66, #3f444d);--solid-border: rgba(255, 255, 255, .5);--solid-shadow-chip: inset 0 1px 0 rgba(255, 255, 255, .55), 0 12px 26px -12px #3f444d;--solid-shadow-go: inset 0 2px 0 rgba(255, 255, 255, .6), inset 0 -2px 6px rgba(0, 0, 0, .12), 0 26px 50px -18px rgba(18, 20, 24, .55);--solid-shadow-cta: inset 0 2px 0 rgba(255, 255, 255, .55), 0 22px 44px -18px rgba(18, 20, 24, .5);--chip-sheen-selected: linear-gradient(150deg, rgba(255, 255, 255, .34) 0%, rgba(255, 255, 255, 0) 46%);--row-alt-bg: rgba(255, 255, 255, .16);--queue-action-bg: rgba(255, 255, 255, .55)}@media(prefers-color-scheme:dark){:root{--bg: #05070c;--bg-field-1: #2b2f37;--bg-field-2: #35313a;--bg-field-3: #232a33;--surface: #12141a;--surface-2: #1b1e25;--text: #eef0f6;--text-dim: #9aa2b8;--border: rgba(238, 240, 246, .1);--danger: #ff8464;--success: #63d69d;--focus: #eef0f6;--glass-bg: linear-gradient(160deg, rgba(150, 160, 200, .2), rgba(120, 130, 175, .09));--glass-border: rgba(255, 255, 255, .16);--glass-shadow: inset 0 1px 0 rgba(255, 255, 255, .26), inset 0 -1px 0 rgba(255, 255, 255, .06), 0 26px 64px -26px rgba(0, 0, 0, .75);--segthumb-bg: linear-gradient(160deg, rgba(210, 216, 228, .3), rgba(180, 188, 204, .14));--segthumb-border: rgba(255, 255, 255, .28);--segthumb-shadow: inset 0 1px 0 rgba(255, 255, 255, .4), 0 12px 26px -12px rgba(0, 0, 0, .8);--row-alt-bg: rgba(255, 255, 255, .05);--queue-action-bg: rgba(255, 255, 255, .08)}}*{box-sizing:border-box}html,body{height:100%;overscroll-behavior:none}body{margin:0;height:100vh;height:100dvh;overflow:hidden;display:flex;flex-direction:column;color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;transition:background-color .3s ease;background-color:var(--bg);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='0.16'/%3E%3C/svg%3E");background-repeat:repeat}body:before{content:"";position:fixed;inset:-20%;z-index:-1;pointer-events:none;background-image:radial-gradient(38% 44% at 18% 16%,var(--bg-field-1) 0%,transparent 68%),radial-gradient(34% 40% at 86% 26%,var(--bg-field-2) 0%,transparent 66%),radial-gradient(44% 50% at 62% 96%,var(--bg-field-3) 0%,transparent 70%);background-repeat:no-repeat;animation:field-drift 46s ease-in-out infinite alternate;animation-play-state:paused}body[data-state=idle]:before{animation-play-state:running}@keyframes field-drift{0%{transform:translate3d(-1.5%,-1%,0) scale(1.02)}to{transform:translate3d(2%,1.5%,0) scale(1.06)}}body.drag-over:after{content:"";position:fixed;inset:10px;border:3px dashed var(--accent-2);border-radius:var(--radius-lg);pointer-events:none;z-index:50;animation:pulse-ring 1.1s ease-in-out infinite}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.seg,.dropzone,.file-card,.chip,.result-panel,.batch-list,.abort-btn,.again-btn,.error-panel,.unsupported-panel{position:relative;backdrop-filter:blur(28px) saturate(180%);-webkit-backdrop-filter:blur(28px) saturate(180%);background:var(--glass-bg);border:1px solid var(--glass-border);box-shadow:var(--glass-shadow)}.seg:after,.dropzone:after,.file-card:after,.chip:after,.result-panel:after,.batch-list:after,.abort-btn:after,.again-btn:after,.error-panel:after,.unsupported-panel:after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;background:var(--glass-sheen)}.ribbon,#step-ribbon{flex:none;width:100%;display:flex;justify-content:center;padding:clamp(8px,1.6vh,14px) clamp(20px,6vw,60px) clamp(2px,.8vh,6px)}.seg{display:flex;width:100%;max-width:420px;padding:5px;border-radius:999px}.segthumb{position:absolute;top:5px;bottom:5px;border-radius:999px;background:var(--segthumb-bg);border:1px solid var(--segthumb-border);box-shadow:var(--segthumb-shadow);transition:left .5s cubic-bezier(.32,.72,0,1)}.segitem{position:relative;z-index:1;flex:1;min-width:0;display:flex;align-items:center;justify-content:center;gap:7px;padding:10px 0;border-radius:999px;font-size:.8125rem;font-weight:800;letter-spacing:.01em;color:var(--text-dim);transition:color .2s ease,opacity .2s ease}.segitem.now{color:var(--text)}.segitem.ahead{opacity:.4}.viewport{flex:1;min-height:0;width:100%;overflow:hidden}.panel{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:clamp(14px,3vh,28px);padding:clamp(14px,5vw,64px);overflow-y:auto;animation:panel-settle .32s cubic-bezier(.22,.8,.28,1) both}.panel:focus-visible{outline:none}.panel-word{margin:0;font-size:clamp(1.6rem,6vw,3.6rem);font-weight:800;letter-spacing:-.02em}.panel-word-audio{font-size:clamp(1.3rem,4.5vw,2.4rem)}.panel-video{cursor:pointer}.dropzone{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:clamp(16px,4vh,32px);border-radius:var(--radius-lg);cursor:pointer;transition:border-color .2s ease,box-shadow .2s ease}.dropzone:focus-visible{outline:3px solid var(--focus);outline-offset:-6px}body.drag-over .dropzone{border-color:var(--accent-2);box-shadow:var(--glass-shadow),0 0 0 4px color-mix(in srgb,var(--accent) 18%,transparent)}.upload-icon{font-size:clamp(4.5rem,20vw,11rem);line-height:1;transition:transform .2s cubic-bezier(.34,1.56,.64,1)}.dropzone:hover .upload-icon,.dropzone:focus-visible .upload-icon,body.drag-over .upload-icon{transform:translateY(-6px) scale(1.05)}.panel-audio-content{width:100%;max-width:min(860px,92vw);display:flex;flex-direction:column;align-items:center;gap:clamp(16px,2.4vh,28px)}.file-card{display:flex;align-items:center;gap:14px;align-self:center;width:100%;max-width:620px;border-radius:var(--radius-md);padding:12px;animation:rise .35s cubic-bezier(.2,.8,.3,1.1)}.thumb{width:84px;height:47px;border-radius:var(--radius-sm);background:var(--surface-2);object-fit:cover;flex:none}.file-meta{min-width:0;flex:1}.file-name{margin:0 0 2px;font-weight:600;font-size:.95rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-sub{margin:0;font-size:.85rem;color:var(--text-dim);font-variant-numeric:tabular-nums}.chip-row{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}.chip{display:inline-flex;align-items:center;gap:6px;color:var(--text);border-radius:999px;padding:9px 16px;font-size:.95rem;font-family:inherit;font-weight:600;cursor:pointer;transition:transform .15s ease,border-color .15s ease,background-color .15s ease,box-shadow .15s ease}.chip:hover:not(:disabled){border-color:var(--accent-2);transform:translateY(-1px)}.chip:active:not(:disabled){transform:translateY(0) scale(.97)}.chip:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.chip:disabled{opacity:.35;cursor:not-allowed}.chip.selected{background:var(--solid-grad);border-color:var(--solid-border);color:var(--accent-contrast);box-shadow:var(--solid-shadow-chip)}.chip.selected:after{background:var(--chip-sheen-selected)}.chip.is-best{border-color:var(--accent-2)}.chip .chip-emoji{font-size:1.05em}.chip .best-badge{position:absolute;top:-8px;right:-6px;font-size:.85rem;filter:drop-shadow(0 2px 3px rgba(0,0,0,.25))}#format-row .chip{min-width:4.2em;justify-content:center}#format-row .chip-label{font-weight:800;letter-spacing:.03em}.go-btn{align-self:center;width:84px;height:84px;border-radius:50%;border:1px solid var(--solid-border);background:var(--solid-grad);color:var(--accent-contrast);font-size:2rem;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:var(--solid-shadow-go);transition:transform .18s cubic-bezier(.34,1.56,.64,1),box-shadow .18s ease;margin:8px 0}.go-btn:hover{transform:scale(1.06)}.go-btn:active{transform:scale(.95)}.go-btn:focus-visible{outline:3px solid var(--focus);outline-offset:4px}.progress-panel{display:flex;flex-direction:column;align-items:center;gap:10px;padding:12px 0;animation:rise .35s cubic-bezier(.2,.8,.3,1.1)}.progress-ring-wrap{position:relative;width:132px;height:132px;display:flex;align-items:center;justify-content:center}.progress-ring{width:100%;height:100%;transform:rotate(-90deg)}.ring-bg,.ring-fg{fill:none;stroke-width:8}.ring-bg{stroke:var(--border)}.ring-fg{stroke:var(--accent);stroke-linecap:round;transition:stroke-dashoffset .25s ease}.ring-fg.indeterminate{animation:spin 1.1s linear infinite;transform-origin:50px 50px}.progress-pct{position:absolute;font-size:1.3rem;font-weight:700;font-variant-numeric:tabular-nums}.progress-elapsed{margin:0;color:var(--text-dim);font-variant-numeric:tabular-nums;font-size:.9rem}.abort-btn{width:52px;height:52px;border-radius:50%;color:var(--text);font-size:1.3rem;cursor:pointer;transition:transform .15s ease,border-color .15s ease}.abort-btn:hover{border-color:var(--danger);transform:translateY(-1px)}.abort-btn:focus-visible{outline:3px solid var(--focus);outline-offset:3px}.result-panel{display:flex;flex-direction:column;align-items:center;gap:10px;border-radius:var(--radius-md);padding:20px;animation:rise .4s cubic-bezier(.2,.8,.3,1.1)}.result-headline{margin:0;font-weight:700;font-size:1.05rem;text-align:center;word-break:break-word}.result-sub{margin:0;color:var(--text-dim);font-size:.85rem;font-variant-numeric:tabular-nums}#result-audio{width:100%;max-width:320px;height:40px}.result-actions{display:flex;align-items:center;gap:14px;margin-top:4px}.download-btn,.again-btn{display:flex;align-items:center;justify-content:center;height:56px;border-radius:999px;font-size:1.5rem;text-decoration:none;cursor:pointer;border:none;transition:transform .15s cubic-bezier(.34,1.56,.64,1)}.again-btn{width:56px;color:var(--text)}.download-btn{position:relative;gap:7px;padding:0 20px;background:var(--solid-grad);border:1px solid var(--solid-border);color:var(--accent-contrast);box-shadow:var(--solid-shadow-cta)}.btn-ext{font-size:.6em;font-weight:800;letter-spacing:.01em}.download-btn:hover,.again-btn:hover{transform:scale(1.08)}.download-btn:focus-visible,.again-btn:focus-visible{outline:3px solid var(--focus);outline-offset:3px}.size-estimate{margin:0;min-height:1.2em;font-size:.9rem;font-weight:600;color:var(--text-dim);font-variant-numeric:tabular-nums;text-align:center}.batch-header{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap}.batch-count{font-size:1.1rem;font-weight:700;font-variant-numeric:tabular-nums}.batch-estimate-sep{color:var(--text-dim);font-size:.95rem;font-weight:600;font-variant-numeric:tabular-nums}.go-btn-batch{width:56px;height:56px;font-size:1.4rem;margin:0}.batch-header .abort-btn{margin:0}.batch-list{width:100%;list-style:none;margin:0;padding:6px;display:flex;flex-direction:column;gap:8px;max-height:min(60dvh,640px);overflow-y:auto;overflow-x:hidden;border-radius:var(--radius-md)}.queue-row{display:flex;align-items:center;gap:10px;padding:8px;border-radius:var(--radius-sm);animation:rise .3s cubic-bezier(.2,.8,.3,1.1)}.queue-row:nth-child(2n){background:var(--row-alt-bg)}.queue-thumb{width:48px;height:27px;border-radius:8px;background:var(--surface-2);object-fit:cover;flex:none}.queue-meta{min-width:0;flex:1}.queue-name{margin:0 0 2px;font-weight:600;font-size:.88rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.queue-sub{margin:0;font-size:.78rem;color:var(--text-dim);font-variant-numeric:tabular-nums;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.queue-state{flex:none;min-width:2.2em;text-align:center;font-size:.95rem;font-weight:700;font-variant-numeric:tabular-nums;color:var(--success)}.queue-state-failed{color:var(--danger)}.queue-state-skipped{color:var(--text-dim);opacity:.5}.queue-download,.queue-retry,.queue-remove{position:relative;flex:none;display:flex;align-items:center;justify-content:center;height:32px;border-radius:999px;font-size:.95rem;text-decoration:none;cursor:pointer;border:none;background:var(--queue-action-bg);color:var(--text);transition:transform .15s cubic-bezier(.34,1.56,.64,1),background-color .15s ease}.queue-retry,.queue-remove{width:32px}.queue-download{gap:4px;padding:0 10px}.queue-download .btn-ext{font-size:.68rem}.queue-download:hover,.queue-retry:hover,.queue-remove:hover{transform:scale(1.08)}.queue-retry:hover{color:var(--accent)}.queue-remove:hover{color:var(--danger)}.queue-download:focus-visible,.queue-retry:focus-visible,.queue-remove:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.download-btn.is-downloaded:before,.download-btn.is-downloaded:after{content:"";position:absolute;top:-4px;right:-4px;width:16px;height:16px;pointer-events:none}.queue-download.is-downloaded:before,.queue-download.is-downloaded:after{content:"";position:absolute;top:-3px;right:-3px;width:11px;height:11px;pointer-events:none}.download-btn.is-downloaded:before,.queue-download.is-downloaded:before{border-radius:50%;background:var(--success);box-shadow:0 2px 6px -1px #00000059}.download-btn.is-downloaded:after,.queue-download.is-downloaded:after{background-color:#fff;-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12.5 4.5 4.5L19 7.5'/%3E%3C/svg%3E");mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12.5 4.5 4.5L19 7.5'/%3E%3C/svg%3E");-webkit-mask-size:55%;mask-size:55%;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;-webkit-mask-position:center;mask-position:center}.batch-result-panel{display:flex;align-items:center;gap:14px}.error-panel,.unsupported-panel{display:flex;flex-direction:column;align-items:center;gap:16px;padding:clamp(32px,8vh,64px) 24px;border-radius:var(--radius-lg);animation:rise .35s cubic-bezier(.2,.8,.3,1.1)}.error-emoji{margin:0;font-size:3rem;line-height:1}.privacy-note{flex:none;width:100%;margin:0;padding:clamp(4px,1vh,8px) 16px calc(clamp(4px,1vh,8px) + env(safe-area-inset-bottom,0px));text-align:center;font-size:.72rem;line-height:1.35;color:var(--text-dim);opacity:.85}[hidden]{display:none!important}@keyframes panel-settle{0%{opacity:0;transform:scale(.97)}to{opacity:1;transform:scale(1)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse-ring{0%,to{opacity:.6}50%{opacity:1}}@media(prefers-reduced-motion:reduce){*{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}@media(max-width:420px){.ribbon,#step-ribbon{padding-inline:clamp(16px,6vw,32px)}.privacy-note{font-size:.62rem;padding:4px 12px calc(4px + env(safe-area-inset-bottom,0px))}.segitem{font-size:.68rem;gap:4px;padding:8px 0}.panel{padding:12px}.go-btn{width:72px;height:72px;font-size:1.7rem}.chip{padding:8px 13px;font-size:.88rem}.upload-icon{font-size:clamp(3.5rem,26vw,5rem)}.queue-thumb{width:38px;height:22px}.queue-name{font-size:.82rem}.queue-download,.queue-retry,.queue-remove{height:28px;font-size:.85rem}.queue-retry,.queue-remove{width:28px}.queue-download{padding:0 8px;gap:3px}.queue-download .btn-ext{font-size:.6rem}}@media(min-width:900px){.file-card{padding:18px 22px;gap:20px}.thumb{width:108px;height:61px}.chip{padding:11px 20px;font-size:1rem}.batch-list{padding:10px;gap:10px}.queue-row{padding:12px 14px;gap:14px}.queue-thumb{width:64px;height:36px}.queue-name{font-size:.95rem}.queue-sub{font-size:.85rem}.queue-download,.queue-retry,.queue-remove{height:38px;font-size:1.05rem}.queue-retry,.queue-remove{width:38px}.queue-download{padding:0 12px}.queue-download.is-downloaded:before,.queue-download.is-downloaded:after{width:13px;height:13px}.result-panel{padding:26px 32px}}