@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;650;700&family=Noto+Sans+JP:wght@400;500;600;700;800&display=swap');
:root{font-family:'DM Sans','Noto Sans JP',sans-serif;color:#292b28;background:#f5f4f0;font-synthesis:none;--muted:#82867b;--line:#ddded6;--accent:#d9e989;--green:#424e2e}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button,a,summary,input[type=range],select{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}button:focus-visible,a:focus-visible,summary:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid #7f9635;outline-offset:4px}button{color:inherit}a{color:inherit}button{border:0;background:none}input[type=range]{accent-color:#525b3b;min-height:30px;cursor:pointer}input[type=range]:disabled{opacity:.4}button,select{min-height:44px}.header{height:88px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:24px;padding:0 5.4%}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:23px;font-weight:800;letter-spacing:-1px}.brand-mark{display:grid;place-items:center;width:29px;height:33px;background:#30352b;border-radius:5px;color:#e0ecb3;font-size:27px}.brand-sub{font-size:9px;letter-spacing:1.7px;font-weight:500;margin-left:15px;color:#8c8e84}.local-badge{margin-left:auto;font-size:11px;color:#75796e;display:flex;align-items:center;gap:8px}.local-badge i,.privacy-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#82975b}.icon-button{border:1px solid var(--line);border-radius:50%;width:32px;height:32px;min-height:32px;display:grid;place-items:center;font-size:15px}.header .icon-button{width:30px;height:30px;min-height:30px}main{max-width:1390px;padding:47px 5.4% 0;margin:auto}.page-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:33px}.eyebrow{font-size:10px;font-weight:650;letter-spacing:2.1px;color:#7b806f;margin:0 0 13px}h1{font-size:32px;letter-spacing:-1.1px;font-weight:600;margin:0 0 12px}.intro{font-size:12px;color:#73786d;margin:0}.step-label{font-size:10px;color:#909486;padding-top:15px;display:flex;gap:10px;align-items:center}.step-label b{font-weight:500;color:#656d59}.step-label span{color:#c1c5b8;margin:0 3px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 318px;gap:27px;align-items:start}.track-panel{background:#fff;border:1px solid var(--line);border-radius:12px;padding:21px 25px 0;overflow:hidden}.section-label{font-size:9px;letter-spacing:1.3px;color:#878c7e;display:flex;justify-content:space-between;font-weight:600}.section-label #sourceMeta{font-size:9px;letter-spacing:.4px}.dropzone{text-align:center;padding:25px 12px 22px;margin:12px 0 20px;background:linear-gradient(90deg,#fafbf7 1px,transparent 1px),linear-gradient(#fafbf7 1px,transparent 1px);background-size:18px 18px;border:1px dashed #d6dacc;border-radius:7px}.dropzone.dragging{background:#eef2dd;border-color:#7d8d43}.upload-icon{margin:0 auto 12px;width:42px;height:42px;border-radius:50%;background:#f0f2e9;display:grid;place-items:center;font-size:24px;color:#747d5c}.dropzone h2{font-size:17px;font-weight:600;margin:0 0 8px}.dropzone p{font-size:11px;color:#8a8e81;margin:0 0 19px}.button{border-radius:6px;min-height:45px;padding:0 21px;font-size:12px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:23px}.dark{background:#2e3329;color:#fff}.dark:hover{background:#424b38}.button span{font-size:18px;font-weight:400}.text-button{font-size:10px;color:#828878;padding:5px 0}.dropzone .text-button{display:block;margin:5px auto -7px}.text-button:hover{color:#343d28}.track-footer{border-top:1px solid #edf0e7;padding:12px 0;display:flex;align-items:center;gap:7px;font-size:9px;color:#89917e}.track-footer #loadState{margin-left:auto;color:#566737}.effects-section{margin-top:31px}.section-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:17px}.section-heading h2{font-size:19px;font-weight:600;margin:8px 0 0}.effect-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.effect-card{position:relative;border-radius:10px;padding:19px 22px 17px;border:1px solid #dfe2d6;background:#eef0e5;overflow:hidden;transition:background .2s,border-color .2s}.space-card{background:#e9ece8;border-color:#dbe0d8}.bass-card.active{background:#e7eecb;border-color:#b6c781}.space-card.active{background:#dce8df;border-color:#a6beac}.effect-top{display:flex;justify-content:space-between;align-items:center}.effect-number{font-size:10px;color:#828a73;letter-spacing:1px}.toggle{padding:6px 0 6px 8px;min-height:32px;display:flex;align-items:center;width:47px;position:relative}.toggle:before{content:'';height:22px;width:39px;background:#cdd1c4;border-radius:22px;position:absolute;right:0;transition:background .2s}.toggle span{width:16px;height:16px;background:#fff;border-radius:50%;z-index:1;margin-left:3px;box-shadow:0 1px 3px #0001;transition:transform .2s}.toggle[aria-checked=true]:before{background:#495b32}.toggle[aria-checked=true] span{transform:translateX(17px)}.effect-card svg{display:block;height:77px;width:100%;margin:0 auto 10px;overflow:visible}.bass-art path{fill:none;stroke:#a1ad7b;stroke-width:1.4}.bass-art path+path{stroke:#c6ceaf;stroke-width:1}.space-art ellipse,.space-art path{fill:none;stroke:#a9b8a7;stroke-width:1}.space-art circle{fill:#8fa48e}.effect-name{display:flex;align-items:center;gap:10px}.effect-name h3{font-size:21px;font-weight:650;letter-spacing:-.6px;margin:0}.effect-name>span{font-size:8px;letter-spacing:1.3px;color:#90997e}.effect-card>p{font-size:10px;color:#7b856c;margin:8px 0 20px}.effect-value{display:flex;justify-content:space-between;font-size:10px;color:#6f795e}.effect-value output{font-size:11px;font-weight:600;color:#4c583a}.effect-range{width:100%;height:27px;margin:2px 0 0}.range-labels{display:flex;justify-content:space-between;font-size:8px;color:#939b87}.effect-note{display:flex;gap:6px;font-size:9px;color:#919687;margin:13px 1px 22px}.advanced{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.advanced summary{display:flex;justify-content:space-between;align-items:center;min-height:63px;font-size:12px;font-weight:500;cursor:pointer;list-style:none}.advanced summary::-webkit-details-marker{display:none}.tiny-icon{font-size:17px;margin-right:9px}.advanced small{font-size:9px;font-weight:400;color:#94998b;margin-left:12px}.expand-icon{font-size:17px;color:#858d78}.advanced[open] .expand-icon{transform:rotate(45deg)}.advanced-body{padding:0 6px 22px}.eq-heading{display:flex;align-items:center;justify-content:space-between}.eq-heading h3{font-size:12px;font-weight:500}.eq-faders{display:grid;grid-template-columns:repeat(8,1fr);gap:6px;background:#edeee8;border-radius:8px;padding:19px 5px 13px}.eq-band{display:flex;align-items:center;flex-direction:column;gap:8px;font-size:10px;color:#707762}.eq-band output{font-size:10px;font-variant-numeric:tabular-nums}.eq-band input{writing-mode:vertical-lr;direction:rtl;width:30px;height:111px;min-height:0}.eq-band label{font-size:9px}.detail-controls{display:grid;gap:20px;margin-top:22px}.detail-controls label{font-size:11px}.detail-controls output{float:right;color:#737d64;font-size:10px}.detail-controls input{display:block;width:100%}.small-note{font-size:10px;line-height:1.9;color:#8a8f80}.export-panel{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px 23px 20px;position:sticky;top:24px}.export-panel h2{font-size:18px;font-weight:600;letter-spacing:-.6px;margin:16px 0 23px}.output-visual{display:flex;align-items:center;gap:16px;padding-bottom:22px;border-bottom:1px solid #e9ece2}.output-disc{width:57px;height:57px;border-radius:50%;background:repeating-radial-gradient(circle,#30372b 0px,#30372b 3px,#434a3b 4px,#30372b 5px);display:grid;place-items:center}.output-disc>span{width:19px;height:19px;border-radius:50%;background:#dfe9b3;border:7px solid #a9b97b}.mini-label{display:block;font-size:7px;letter-spacing:1.1px;color:#999e90;margin-bottom:4px}.output-visual strong{font-size:23px;font-weight:600}.output-visual strong span{font-size:11px;font-weight:400;color:#9aa08f}.output-quality{display:block;font-size:9px;color:#8b937d;margin-top:5px}.export-options{padding:21px 0}.export-options>label{font-size:10px;color:#7b826d;display:block;margin-bottom:8px}.export-options select{width:100%;font-size:11px;padding:0 11px;border:1px solid #dfe3d5;border-radius:5px;background:#fff;color:#46513b;min-height:40px;margin-bottom:17px}.info-row{display:flex;justify-content:space-between;font-size:9px;margin-bottom:13px;color:#969d8c;gap:5px}.info-row strong{font-size:9px;font-weight:400;color:#6d775e}.safe-box{padding:15px 13px;background:#f4f6ed;border:1px solid #edf0e1;border-radius:6px}.safe-box>div:first-child{display:flex;align-items:center;gap:7px}.safe-symbol{color:#748750;font-size:12px}.safe-box strong{font-size:10px;font-weight:500;color:#626f4b}.safe-box p{font-size:9px;line-height:1.9;color:#8a937d;margin:8px 0 13px}.meter{height:4px;border-radius:5px;background:#e0e6d5;overflow:hidden}.meter span{display:block;height:100%;width:0;background:#8d9c68;transition:width .4s}.meter-caption{display:flex;justify-content:space-between;font-size:8px;color:#96a082;margin-top:8px;gap:3px}.export-button{width:100%;background:#d8e98f;justify-content:space-between;color:#3c4d23;margin-top:22px;padding:0 15px;min-height:48px}.export-button:not(:disabled):hover{background:#ccdf77}.save-note{text-align:center;font-size:9px;color:#a0a693;line-height:1.9;margin:13px 0 0}.status{font-size:10px;line-height:1.8;color:#5e7041;margin-top:10px;overflow-wrap:anywhere}.status:empty{display:none}.status.error{color:#a44a34}footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:48px;padding:24px 0 27px;font-size:8px;color:#a2a698;letter-spacing:.5px}.footer-divider{margin:0 9px;color:#c6cabe}.track-title{display:flex;align-items:center;gap:12px;margin:24px 0 0}.track-title>div:nth-child(2){min-width:0;flex:1}.track-title h2{font-size:15px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin:0}.track-title p{font-size:9px;color:#909785;margin:5px 0}.file-icon{width:39px;height:43px;background:#eef1e4;display:grid;place-items:center;border-radius:6px;font-size:21px;color:#76865b}.track-title button{flex:none}#waveform{display:block;width:100%;height:123px;margin-top:12px}#seek{width:100%;margin:0;height:18px;min-height:24px}.timeline{display:flex;justify-content:space-between;font-size:9px;color:#8a937c;font-variant-numeric:tabular-nums}.transport{display:flex;align-items:center;gap:12px;padding:17px 0 21px}.play-button{width:42px;height:42px;min-height:42px;border-radius:50%;background:#343d2b;color:#e3ecc4;font-size:15px;flex:none}.transport .icon-button{border:0;font-size:21px;flex:none}.ab-switch{background:#f0f2eb;border-radius:5px;padding:3px;display:flex}.ab-switch button{font-size:9px;min-height:31px;padding:0 12px;border-radius:3px;white-space:nowrap}.ab-switch button[aria-pressed=true]{background:#fff;box-shadow:0 1px 3px #0001;color:#445432}.volume{margin-left:auto;display:flex;align-items:center;gap:5px;font-size:9px;color:#919a82}.volume input{width:62px}.download-link{font-size:10px;display:block;padding:15px 5px;text-align:center}#saveActions{margin-top:15px}#saveActions .button{width:100%;font-size:10px;padding:0 8px}#exportProgress{font-size:10px;color:#68794e;margin-top:12px}progress{width:100%;height:6px;accent-color:#8a9f51}#progressText{display:inline-block;margin-top:7px}#cancelExport{float:right}dialog{border:1px solid #dce1cf;border-radius:14px;max-width:480px;width:calc(100% - 32px);padding:34px;color:#353e2b;background:#fafbf7;box-shadow:0 20px 80px #0002}dialog::backdrop{background:#282e2666;backdrop-filter:blur(4px)}dialog h2{font-size:21px}.close-dialog{position:absolute;top:13px;right:13px}dialog ol{padding-left:22px}dialog li{font-size:12px;margin-bottom:18px}dialog li p{font-size:11px;color:#788269;line-height:1.9}dialog .small-note{font-size:10px}body.busy #dropzone{opacity:.6;pointer-events:none}[hidden]{display:none!important}@media(min-width:1400px){main{padding-left:50px;padding-right:50px}}@media(max-width:1050px){main{padding:35px 4% 0}.header{padding:0 4%}.workspace{gap:20px;grid-template-columns:minmax(0,1fr) 286px}.step-label{display:none}.effect-card{padding:17px}.brand-sub{display:none}.advanced small{font-size:8px;margin-left:7px}.volume{display:none}.export-panel{padding:22px 19px}}@media(max-width:760px){.header{height:69px;padding:0 21px;gap:15px}.brand{font-size:21px}.brand-mark{width:25px;height:29px;font-size:23px}.local-badge{font-size:8px;gap:5px}.header .icon-button{width:26px;height:26px;min-height:26px;flex:none}main{padding:29px 20px 0}.page-heading{margin-bottom:25px}.eyebrow{font-size:8px;margin-bottom:12px;letter-spacing:1.5px}h1{font-size:27px;letter-spacing:-1px}.intro{font-size:10px}.workspace{display:block}.track-panel{padding:17px 17px 0;border-radius:10px}.section-label{font-size:8px;letter-spacing:1px}.dropzone{padding:22px 8px 19px;margin-top:15px}.dropzone h2{font-size:16px}.dropzone p{font-size:9px}.track-footer{font-size:8px}.effects-section{margin-top:27px}.section-heading h2{font-size:18px}.effect-grid{gap:10px}.effect-card{padding:13px 14px 16px}.effect-card svg{height:61px;margin:3px auto 11px}.effect-name{display:block}.effect-name h3{font-size:21px}.effect-name>span{display:block;margin-top:3px;font-size:7px}.effect-card>p{font-size:9px;line-height:1.7;margin:8px 0 17px;max-width:145px;min-height:31px}.effect-value{font-size:9px}.range-labels{font-size:7px}.effect-note{font-size:8px;line-height:1.8;align-items:start;margin:11px 0 18px}.effect-note span{flex:none}.advanced summary{min-height:62px;font-size:11px}.advanced small{display:none}.export-panel{margin-top:25px;position:static;padding:22px}.export-panel h2{font-size:20px;margin:13px 0 20px}.output-visual{padding-bottom:19px}.output-disc{width:50px;height:50px}.export-options{padding:20px 0 12px}.info-row,.info-row strong{font-size:10px}.safe-box{padding:15px}.safe-box strong{font-size:11px}.safe-box p{font-size:10px}.save-note{font-size:10px}.export-button{font-size:13px;min-height:50px}.export-panel .section-label{font-size:9px}footer{margin-top:32px;padding:20px 0 25px;flex-direction:column;gap:9px;font-size:7px}.transport{gap:8px}.ab-switch button{padding:0 11px}.volume{display:flex;gap:0;font-size:0}.volume input{width:48px}.track-title h2{font-size:12px}.eq-faders{gap:0}.eq-band input{width:24px}#helpDialog{padding:28px 24px}.button{min-height:46px}.effect-value+input{min-height:34px}.toggle{min-height:44px;width:47px}.text-button{min-height:44px}.effect-top{height:32px}.safe-box .meter-caption{font-size:8px}.status{font-size:11px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}
/* Keep secondary Japanese copy legible on compact screens. */
.dropzone p,.effect-card>p,.safe-box p,.effect-note,.save-note,.small-note,.track-footer,.output-quality{font-size:11px}
.effect-value,.text-button,.ab-switch button,.export-options>label,.export-options select,.info-row,.info-row strong,.volume{font-size:11px}
.range-labels,.meter-caption,.track-title p,.timeline,.section-label,.section-label #sourceMeta{font-size:10px}
.safe-box strong{font-size:12px}
@media(max-width:760px){.effect-card>p{min-height:38px}.effect-note,.track-footer,.range-labels,.meter-caption{font-size:10px}.effect-name>span{font-size:8px}.volume{font-size:0}.track-footer{flex-wrap:wrap}.track-footer #loadState{margin-left:0;width:100%}.track-footer #loadState:empty{display:none}.effect-value{font-size:11px}.header .local-badge{font-size:9px}}