:root{
  --bg:#0d0f14; --bg2:#12151d; --panel:#171a22; --panel2:#1d2230;
  --line:#262c3b; --line2:#333b4e;
  --text:#e8ecf4; --muted:#98a1b3; --dim:#6b7385;
  --accent:#e055ff; --accent2:#7c5cff; --accent-soft:rgba(224,85,255,.14);
  --green:#34d399; --red:#f0524a; --amber:#f5a524;
  --radius:10px; --radius-sm:7px;
  --shadow:0 6px 18px rgba(0,0,0,.45);
  --font:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:"SF Mono",ui-monospace,Consolas,"Courier New",monospace;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:var(--font);line-height:1.45;-webkit-text-size-adjust:100%}
body{min-height:100vh}

/* ============ HEADER / FOOTER ============ */
.site-header{display:flex;align-items:center;gap:14px;padding:12px 18px;
  background:linear-gradient(180deg,#04050a,#0b0d13);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:8px;text-decoration:none;font-weight:800;color:#fff;letter-spacing:.2px}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;
  border-radius:7px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;font-weight:900}
.brand-name{font-size:17px}
.util-nav{display:flex;gap:12px;margin-left:auto;font-size:13.5px}
.util-nav a{color:var(--muted);text-decoration:none}
.util-nav a:hover{color:#fff}

.site-footer{margin-top:0;padding:26px 18px;background:#080a0f;border-top:1px solid var(--line);color:var(--muted)}
.site-footer p{margin:0 0 10px}
.site-footer nav{display:flex;flex-wrap:wrap;gap:14px}
.site-footer nav a{color:var(--muted);text-decoration:none}
.site-footer nav a:hover{color:#fff}

/* ============ LANDING ============ */
.landing{max-width:820px;margin:34px auto 10px;padding:26px 20px;text-align:center}
.eyebrow{display:inline-block;background:var(--accent-soft);color:var(--accent);
  border:1px solid var(--accent2);border-radius:20px;padding:4px 13px;font-size:12.5px;letter-spacing:.2px}
#main-h1{font-size:clamp(26px,4vw,40px);font-weight:800;margin:18px 0 6px;line-height:1.1}
.sub{font-size:clamp(14.5px,2vw,17px);color:var(--muted);margin:6px 0 26px;max-width:70ch}
.dropzone{
  background:linear-gradient(180deg,var(--panel),var(--panel2));
  border:2px dashed var(--line2);border-radius:16px;cursor:pointer;
  padding:34px 26px;display:flex;flex-direction:column;align-items:center;gap:12px;
  box-shadow:var(--shadow);transition:border-color .15s,transform .15s;
}
.dropzone.dragover{border-color:var(--accent);transform:scale(1.01);background:var(--accent-soft)}
.dz-icon{font-size:40px;line-height:1}
.dz-title{font-size:20px;font-weight:700}
.dz-or{color:var(--dim);font-size:13px;text-transform:uppercase;letter-spacing:1px}
.dz-btn{
  background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;border:none;
  border-radius:12px;padding:13px 30px;font-size:16px;font-weight:700;cursor:pointer;
  box-shadow:0 4px 14px rgba(224,85,255,.35);transition:transform .12s,box-shadow .12s;
}
.dz-btn:active{transform:scale(.97)}
.dz-sub{font-size:13px;color:var(--muted)}
.paste-row{margin-top:2px}
.link-btn{background:none;border:none;color:var(--accent);cursor:pointer;font-size:13.5px;text-decoration:underline}
.privacy-note{color:var(--muted);font-size:14px;margin:18px auto;max-width:60ch}
.landing-steps{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.step{display:inline-flex;align-items:center;gap:8px;background:var(--panel);border:1px solid var(--line);
  border-radius:20px;padding:7px 13px;color:var(--muted);font-size:13.5px}
.step span{width:22px;height:22px;border-radius:50%;background:var(--accent-soft);color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;font-weight:700}

/* ============ APP FRAME ============ */
.app-wrap{max-width:1500px;margin:0 auto;padding:18px 14px}
.app-frame{display:block}
.app-frame.dark{background:transparent}

/* ============ EDITOR LAYOUT ============ */
#editor{display:grid;grid-template-columns:1fr;gap:0;background:linear-gradient(180deg,#10131b,#0c0f16);
  border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
.editor-topbar{display:flex;align-items:center;gap:12px;padding:11px 16px;border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,#151827,#10131b)}
.file-chip{display:inline-flex;flex-direction:column;align-items:flex-start;background:var(--panel);
  border:1px solid var(--line);border-radius:8px;padding:5px 11px;min-width:0}
.fc-name{color:#fff;font-weight:600;font-size:13.5px;max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.fc-meta{color:var(--muted);font-size:11.5px}
.top-actions{margin-left:auto;display:flex;gap:8px}
.icon-btn,.ghost-btn{background:var(--panel2);color:var(--text);border:1px solid var(--line2);
  border-radius:var(--radius-sm);padding:7px 12px;font-size:13px;cursor:pointer;display:inline-flex;align-items:center;gap:5px}
.icon-btn:hover{background:#232a3b}
.ghost-btn{color:var(--green)}
.ghost-btn:hover{background:rgba(52,211,153,.12)}

.editor-grid{display:grid;grid-template-columns:150px 1fr;gap:0;min-height:0}
.toolbar{background:linear-gradient(180deg,var(--panel),var(--panel2));border-right:1px solid var(--line);
  padding:12px 12px;display:flex;flex-direction:column;gap:6px}
.tb-label{text-transform:uppercase;font-size:10.5px;letter-spacing:1.2px;color:var(--dim);padding:2px 0}
.tool-btn{display:flex;align-items:center;gap:9px;justify-content:flex-start;background:transparent;
  color:var(--text);border:1px solid transparent;border-radius:9px;padding:10px 10px;cursor:pointer;
  font-weight:600;font-size:14px;transition:background .12s}
.tool-btn:hover{background:var(--panel2)}
.tool-btn.active{background:var(--accent-soft);border-color:var(--accent);color:#fff}
.tool-btn .ti{font-size:16px;width:22px;text-align:center}
.tool-btn .ti-k{font-size:10px;color:var(--dim);margin-left:2px;display:block;line-height:1}

/* Preview column */
.preview-col{display:flex;flex-direction:column;min-width:0}
.stage{position:relative;flex:1 1 auto;min-height:260px;background:#0a0c11;
  display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--line);
  border-radius:6px;overflow:hidden}
#preview-canvas{max-width:100%;max-height:100%;object-fit:contain;display:none}
.stage-placeholder{color:var(--dim);font-size:15px;font-weight:600;letter-spacing:.3px}
.stage-message{position:absolute;inset:0;background:rgba(10,12,17,.88);color:var(--text);
  display:flex;align-items:center;justify-content:center;padding:22px;text-align:center;z-index:5}
.no-audio-badge{position:absolute;top:10px;right:12px;background:rgba(0,0,0,.6);color:var(--muted);
  font-size:11.5px;border-radius:12px;padding:3px 9px;z-index:3;display:none}
.large-size-badge{position:absolute;top:10px;left:12px;background:var(--amber);color:#1a1515;
  font-size:11.5px;border-radius:12px;padding:3px 9px;z-index:3;display:none;font-weight:600}

.transport{display:flex;align-items:center;gap:8px;padding:9px 14px;flex-wrap:wrap;
  border-bottom:1px solid var(--line);background:var(--panel)}
.t-btn{background:#232a3b;color:var(--text);border:1px solid var(--line2);border-radius:8px;
  width:34px;height:34px;cursor:pointer;font-size:14px;display:inline-flex;align-items:center;justify-content:center}
.t-btn:hover{background:#2d3650}
.play-btn{width:44px;height:44px;background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#fff;border:none;border-radius:50%;font-size:16px}
.icon-only-big{width:36px;height:32px}
.t-time{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:13px;margin:0 6px}
.t-time .mono{color:#fff}
.t-slash{color:var(--dim)}
#scrub{flex:1 1 auto;accent-color:var(--accent);height:4px;margin:0 4px;display:none}
.vol-range{width:70px;accent-color:var(--accent)}

/* Tool panel */
.toolpanel-wrap{background:var(--panel);margin-top:4px}
.toolpanel-head{display:flex;align-items:center;gap:8px;padding:5px 12px;font-size:12px;color:var(--muted);
  text-transform:uppercase;letter-spacing:.5px}
.tp-close{background:none;border:none;color:var(--muted);cursor:pointer;font-size:13px}
#toolpanel{display:flex;flex-direction:column;gap:10px;padding:10px 14px;background:var(--panel)}
.tp-group{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--panel2);padding:10px 12px}
.tp-group-title{font-size:10.5px;text-transform:uppercase;color:var(--dim);letter-spacing:.6px;margin:0 0 6px}
.tp-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tp-label{font-size:12.5px;color:var(--muted);min-width:70px}
input[type=range]{accent-color:var(--accent);flex:1 1 auto}
input[type=number],input[type=text]{background:#10131b;color:var(--text);border:1px solid var(--line2);
  border-radius:var(--radius-sm);padding:6px 8px;font-size:13px;min-width:0;width:auto}
select,option{background:#10131b;color:var(--text);border:1px solid var(--line2);border-radius:var(--radius-sm);
  padding:6px 8px;font-size:13px}
button.sm{background:var(--panel2);border:1px solid var(--line2);color:var(--text);border-radius:7px;
  padding:6px 11px;font-size:12.5px;cursor:pointer}
button.pri{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;border:none;
  border-radius:8px;padding:8px 14px;font-weight:700;cursor:pointer}
button.sec{background:var(--panel2);color:var(--text);border:1px solid var(--line2);border-radius:8px;
  padding:8px 14px;cursor:pointer}
.color-swatch{width:34px;height:28px;border:none;padding:0;cursor:pointer;background:#fff}
.preset-grid{display:flex;flex-wrap:wrap;gap:8px}
.preset-grid button{background:var(--panel2);border:1px solid var(--line2);color:var(--text);border-radius:7px;
  padding:7px 13px;font-size:12.5px;cursor:pointer}
.preset-grid button.active{background:var(--accent-soft);border-color:var(--accent);color:#fff}
.text-item{display:flex;align-items:center;gap:8px;background:var(--panel2);border:1px solid var(--line);
  border-radius:7px;padding:6px 9px;font-size:12.5px;color:var(--muted)}
.text-item .tw{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.text-item .tdel{background:none;border:none;color:var(--red);cursor:pointer}

/* Timeline */
.timeline{background:var(--panel);border-top:1px solid var(--line)}
.tl-head{display:flex;align-items:center;gap:10px;padding:6px 12px;font-size:11.5px;color:var(--muted)
  ;text-transform:uppercase;letter-spacing:.5px}
.tl-zoom{display:flex;gap:4px;margin-left:8px}
.zbtn{background:var(--panel2);border:1px solid var(--line2);color:var(--text);border-radius:6px;width:24px;height:24px;cursor:pointer;font-size:14px}
.tl-dur{margin-left:auto;font-family:var(--mono);font-size:11.5px}
.tl-ruler{height:18px;position:relative;overflow:hidden;color:var(--dim);font-size:9.5px;font-family:var(--mono);
  background:var(--panel2);border-bottom:1px solid var(--line);cursor:pointer}
.tl-tracks{position:relative}
.tl-track{display:flex;align-items:center;height:44px;background:var(--panel);border-bottom:1px solid var(--line)}
.track-label{width:22px;background:var(--bg2);color:var(--dim);display:flex;align-items:center;
  justify-content:center;font-size:10.5px;font-weight:700;height:100%}
.tl-clip-layer{position:relative;flex:1;height:100%}
.tl-clip{position:absolute;top:4px;bottom:4px;border-radius:5px;background:linear-gradient(135deg,#2a3450,#38456b);
  border:1px solid #4a5a8a;cursor:pointer}
.tl-clip.selected{outline:2px solid var(--accent)}
.tl-clip .tl-handle{position:absolute;top:0;bottom:0;width:9px;background:#4a5a8a;cursor:ew-resize;opacity:.9}
.tl-handle.l{left:0}.tl-handle.r{right:0}
.tl-audio-layer{position:relative;flex:1;height:100%}
.audio-clip{position:absolute;top:6px;bottom:6px;border-radius:4px;background:#1b2f4d;border:1px solid #2b4a75}
.noaudio-msg{position:absolute;inset:0;color:var(--dim);font-size:11.5px;display:flex;align-items:center;justify-content:center}
.tl-playhead{position:absolute;top:0;bottom:0;width:2px;background:var(--accent);pointer-events:none;z-index:6}
.tl-playhead::before{content:"";position:absolute;top:-2px;left:-4px;width:10px;height:10px;background:var(--accent);border-radius:50%}
.tl-selected{position:absolute;top:0;bottom:0;background:rgba(224,85,255,.10);pointer-events:none}
.tl-tracks{cursor:text}

/* Action bar */
.actionbar{display:flex;align-items:center;gap:10px;padding:12px 16px;background:#0f1218;border-top:1px solid var(--line)}
.danger{color:var(--red)}
.selected-dur{margin-left:auto;font-family:var(--mono);color:var(--green);font-size:13px}
.export-btn{background:linear-gradient(135deg,var(--green),#10b981);color:#06110b;border:none;border-radius:12px;
  padding:12px 26px;font-weight:800;font-size:15px;cursor:pointer;box-shadow:0 4px 14px rgba(16,185,129,.3)}
.export-btn:hover{filter:brightness(1.08)}

/* ============ EXPORT MODAL ============ */
.modal-backdrop{position:fixed;inset:0;background:rgba(5,6,9,.72);display:flex;align-items:center;
  justify-content:center;z-index:100;backdrop-filter:blur(3px)}
.modal{width:min(520px,92vw);background:var(--panel);border:1px solid var(--line2);border-radius:14px;
  box-shadow:var(--shadow);padding:22px}
.modal h3{margin:0 0 4px}
.modal .m-sub{color:var(--muted);font-size:13px;margin:0 0 16px}
.modal .m-row{display:flex;align-items:center;justify-content:space-between;margin:8px 0}
.modal .m-row label{color:var(--muted);font-size:13.5px}
.modal .m-btns{display:flex;gap:10px;justify-content:flex-end;margin-top:18px}
.progress-wrap{margin-top:14px}
.progress{height:16px;border-radius:10px;background:rgba(255,255,255,.12);overflow:hidden}
.progress>div{height:100%;background:linear-gradient(135deg,var(--green),#10b981);width:0;transition:width .15s}
.progress-pct{font-family:var(--mono);font-size:12.5px;color:var(--muted);margin-top:6px}
.done-msg{display:flex;align-items:center;gap:8px;color:var(--green);font-weight:700;margin-top:10px}
.download-link{display:inline-block;background:var(--green);color:#06110b;border:none;border-radius:10px;
  padding:11px 22px;font-weight:800;text-decoration:none}
.err-box{background:rgba(240,82,74,.13);border:1px solid var(--red);border-radius:9px;color:#ffb3ae;
  padding:11px;font-size:13px;margin:12px 0}

/* ============ TOASTS ============ */
.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);background:var(--panel2);
  border:1px solid var(--line2);color:var(--text);border-radius:10px;padding:12px 18px;z-index:120;
  box-shadow:var(--shadow);font-size:13.5px;max-width:92vw;animation:toastIn .2s}
.toast.warn{border-color:var(--amber)}.toast.err{border-color:var(--red);color:#ffb3ae}
.toast.success{border-color:var(--green);color:var(--green)}
@keyframes toastIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}

/* ============ SEO CONTENT ============ */
.seo{background:var(--bg);padding:44px 20px;max-width:860px;margin:0 auto}
.seo-inner h2{font-size:clamp(20px,3vw,27px);font-weight:800;margin:26px 0 8px;color:#fff}
.seo-inner h2:first-child{margin-top:0}
.seo-inner p,.seo-inner li{color:var(--text);font-size:15.5px;line-height:1.65}
.seo-inner strong{color:#fff}
.seo-steps{margin:10px 0}
.seo details{border:1px solid var(--line);border-radius:10px;background:var(--panel);margin:8px 0}
.seo details summary{padding:12px 14px;cursor:pointer;font-weight:600;color:var(--text);font-size:14.5px}
.seo details+details{margin:8px 0}
.seo details p{padding:8px 14px;margin:0;color:var(--muted);font-size:14px}
.how-it-works{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.how-it-works ul{margin:8px 0;padding-left:20px}

/* ============ MOBILE ============ */
@media (max-width:820px){
  .editor-grid{grid-template-columns:1fr}
  .toolbar{position:fixed;left:0;right:0;bottom:0;z-index:60;flex-direction:row;overflow-x:auto;
    padding:8px 10px;background:var(--bg2);border-top:1px solid var(--line);border-right:none}
  .toolbar .tb-label{display:none}
  .tool-btn{white-space:nowrap;padding:9px 12px;font-size:12.5px;border-radius:9px;flex:0 0 auto}
  .tool-btn .ti-k{display:none}
  .tool-btn .ti{width:18px;font-size:15px}
  .preview-col{padding-bottom:6px}
  .stage{min-height:200px}
  .timeline{order:2}
  .editor{display:flex;flex-direction:column}
  #editor .actionbar{flex-wrap:wrap}
  .transport{flex-wrap:wrap}
  .vol-range{width:60px}
  .editor-topbar{flex-wrap:wrap}
}
@media (max-width:480px){
  .stage{min-height:170px;border-radius:6px}
  .toolbar .tool-btn{flex:1 1 auto}
  .export-btn{padding:11px 20px;font-size:13.5px}
  .t-time .mono{font-size:12px}
}
@media (max-width:430px){
  .transport{gap:5px}
  .dz-btn{width:100%}
}

/* ============ ACCESSIBILITY ============ */
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
button:focus-visible,canvas:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--accent)}
@media (prefers-reduced-motion:reduce){*{transition:none;animation:none}}

/* ============ CROP OVERLAY ============ */
.crop-overlay{position:absolute;inset:0;background:rgba(5,6,9,.55);cursor:move}
.crop-box{position:absolute;outline:2px solid var(--accent)}
.crop-box::before{content:"";position:absolute;inset:0;background:rgba(20,30,60,0);box-shadow:0 0 0 1000px rgba(5,6,9,.6)}
.crop-handle{position:absolute;width:13px;height:13px;background:var(--accent);border-radius:2px}
.crop-dim{position:absolute;top:-24px;left:50%;transform:translateX(-50%);color:var(--accent);
  background:rgba(0,0,0,.7);font-family:var(--mono);font-size:11px;padding:1px 6px;border-radius:4px;white-space:nowrap}

/* ============ JS-generated classes ============ */
.ckbx{display:inline-flex;align-items:center;gap:5px;color:var(--muted);font-size:12.5px}
.mono{font-family:var(--mono)}
.clip-lbl{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);color:#cdd8ff;font-size:10.5px;text-shadow:0 1px 2px rgba(0,0,0,.5)}
.text-item.selected{background:var(--accent-soft);border-color:var(--accent)}
.tl-ruler{position:relative}
.tl-ruler span{position:absolute;top:2px;transform:translateX(-50%);white-space:nowrap;pointer-events:none;font-size:9.5px;color:var(--dim)}
.preset-grid button.active{background:var(--accent-soft);border-color:var(--accent);color:#fff}
button.sm.active{background:var(--accent-soft);border-color:var(--accent);color:#fff}