@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=DM+Sans:wght@400;500;600;700&family=Noto+Sans+JP:wght@400;500;600;700&display=swap');
:root{color-scheme:dark;--bg:#111714;--panel:#19211d;--panel2:#202b25;--line:#303c35;--text:#eef2eb;--muted:#9ba99e;--lime:#d4ef83;--orange:#e5a46e;--red:#ff9a86}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:'DM Sans','Noto Sans JP',sans-serif;font-size:14px}.topbar{height:68px;border-bottom:1px solid #28312b;display:flex;align-items:center;justify-content:space-between;padding:0 max(calc((100% - 1020px)/2),28px)}.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-size:15px;font-weight:700;letter-spacing:.08em}.brand-mark{display:grid;place-items:center;background:var(--lime);color:#1a211a;font-size:18px;border-radius:8px;width:29px;height:29px}.brand-sub{font:10px 'DM Mono',monospace;color:var(--muted);letter-spacing:.07em}.privacy{font-size:11px;color:var(--muted)}.privacy i{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--lime);margin-right:5px}main{max-width:860px;margin:0 auto;padding:56px 24px 38px}.intro{margin-bottom:35px}.eyebrow{font:10px 'DM Mono',monospace;letter-spacing:.15em;color:var(--muted)}.eyebrow span{float:right}h1{font-size:clamp(32px,5vw,47px);letter-spacing:-.06em;line-height:1.3;margin:17px 0 13px;font-weight:600}h1 em{font-style:normal;color:var(--lime)}.intro p{color:var(--muted);line-height:1.8;margin:0}.dropzone{height:142px;border:1px dashed #536158;border-radius:12px;background:#151d18;display:flex;align-items:center;justify-content:center;gap:17px;position:relative;cursor:pointer;transition:.2s}.dropzone:hover,.dropzone.drag{border-color:var(--lime);background:#1b251d}.upload-icon{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:#28352a;color:var(--lime);font-size:23px}.dropzone strong,.dropzone span,.dropzone small{display:block}.dropzone strong{font-size:14px;margin-bottom:5px}.dropzone span{font-size:12px;color:var(--muted)}.dropzone u{color:var(--lime);text-underline-offset:3px}.dropzone small{position:absolute;bottom:14px;font:10px 'DM Mono',monospace;color:#76857a}.note{margin-top:17px;padding:14px 16px;border:1px solid #303a32;border-radius:8px;display:flex;gap:10px;color:var(--muted);font-size:11px;line-height:1.7}.note span{color:var(--lime);font-weight:bold;border:1px solid #65734b;width:17px;height:17px;flex:none;text-align:center;border-radius:50%;line-height:16px}.note p{margin:0}.file-row{display:flex;align-items:center;gap:12px;padding:16px 0;border-bottom:1px solid var(--line);margin-bottom:24px}.file-icon{font:10px 'DM Mono',monospace;color:var(--lime);border:1px solid #64744a;border-radius:5px;padding:5px 7px}.file-meta{display:grid;gap:4px;min-width:0}.file-meta strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-meta span,.gain-row span{font-size:11px;color:var(--muted)}.text-button{margin-left:auto;color:var(--muted);border:0;background:none;cursor:pointer}.progress{height:50px;color:var(--muted);display:flex;align-items:center;gap:12px}.spinner{width:16px;height:16px;border:2px solid #536158;border-top-color:var(--lime);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.section-head{display:flex;align-items:end;justify-content:space-between;margin:15px 0 14px}h2{font-size:18px;letter-spacing:-.03em;margin:7px 0 0}.status{font-size:11px;color:var(--lime);border:1px solid #536346;padding:5px 8px;border-radius:20px}.wave-card{border:1px solid var(--line);background:#151c18;border-radius:10px;padding:14px 16px}.wave-labels{display:flex;justify-content:space-between;color:#819086;font:10px 'DM Mono',monospace}canvas{width:100%;height:160px;display:block;margin-top:8px}.range-inputs{display:flex;align-items:center;gap:18px;border-top:1px solid #29342d;padding-top:12px}.range-inputs label,.gain-label{font-size:11px;color:var(--muted)}input[type=number]{width:92px;background:#202a24;border:1px solid #3c4a40;border-radius:5px;padding:7px 8px;color:var(--text);margin-left:7px;font:12px 'DM Mono',monospace}.range-inputs>span{margin-left:auto;font:11px 'DM Mono',monospace;color:var(--lime)}.controls{display:flex;align-items:center;gap:8px;margin:13px 0}.secondary{border:1px solid var(--line);background:var(--panel);border-radius:6px;padding:9px 12px;color:var(--text);font-size:11px;cursor:pointer}.secondary:hover{border-color:#76876d}.gain-control{margin-left:auto;display:flex;align-items:center;gap:8px;color:var(--muted);font-size:11px;cursor:pointer}.gain-control input{position:absolute;opacity:0}.switch{width:30px;height:17px;background:#465249;border-radius:10px;position:relative}.switch:after{content:'';position:absolute;width:11px;height:11px;left:3px;top:3px;background:#dce5d8;border-radius:50%;transition:.2s}.gain-control input:checked+.switch{background:#8ea953}.gain-control input:checked+.switch:after{left:16px;background:#fff}.gain-row{display:flex;justify-content:space-between;align-items:center;padding:15px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.gain-row>div{display:grid;gap:4px}.gain-row strong{font-size:12px;font-weight:500}.gain-label select{margin-left:8px;border:1px solid #3c4a40;background:#202a24;color:var(--text);border-radius:5px;padding:7px;font:11px 'DM Mono',monospace}.export-row{display:flex;align-items:center;justify-content:space-between;padding-top:19px}.export-row>div{display:grid;gap:5px}.export-title{font-size:12px}.export-row span:last-child{font-size:11px;color:var(--muted)}.primary{border:0;background:var(--lime);color:#172014;padding:11px 16px;border-radius:7px;font-size:12px;font-weight:700;cursor:pointer}.primary:disabled{opacity:.45;cursor:not-allowed}.primary span{font-size:17px;margin-left:8px}.error{margin-top:12px;color:var(--red);font-size:12px;padding:10px 12px;background:#30201e;border:1px solid #623d35;border-radius:7px}footer{border-top:1px solid #28312b;padding:18px max(calc((100% - 1020px)/2),28px);display:flex;justify-content:space-between;color:#738077;font-size:10px}footer a{color:#9caa9e;text-decoration:none}@media(max-width:600px){.topbar{padding:0 18px}.privacy{font-size:9px}main{padding:36px 16px 28px}.intro p{font-size:12px}.desktop{display:none}.dropzone{height:128px}.wave-card{padding:12px 10px}.range-inputs{gap:8px}.range-inputs label{font-size:10px}input[type=number]{width:72px;margin-left:3px}.gain-row{gap:10px}.gain-label{font-size:10px}.controls{flex-wrap:wrap}.gain-control{margin-left:auto}.export-row{align-items:end}}