:root{
    --bg:#0a0a0f; --bg2:#050507; --surface:#14141c; --surface2:#1b1b26; --line:#2a2a38;
    --text:#f3f3f6; --text-dim:#8d8da3; --text-faint:#54546a;
    --font-display:'Space Grotesk', sans-serif; --font-body:'Inter', sans-serif; --font-mono:'JetBrains Mono', monospace;
  }
  *{ box-sizing:border-box; }
  html,body{ margin:0; padding:0; }
  body{
    min-height:100vh;
    background: radial-gradient(circle at 50% -10%, #16141f 0%, var(--bg) 45%, var(--bg2) 100%);
    color:var(--text); font-family:var(--font-body); padding:20px 14px 40px; overflow-x:hidden;
  }
  button{ font-family:var(--font-body); }
  button:focus-visible{ outline:2px solid #fff; outline-offset:2px; }
  input[type=range]:focus-visible, input[type=text]:focus-visible{ outline:2px solid #fff; outline-offset:2px; }

  .stage-glow{
    position:fixed; top:-20%; left:50%; width:520px; height:520px; transform:translateX(-50%);
    background:radial-gradient(circle, var(--glow-color, #ff5252), transparent 65%);
    filter:blur(60px); opacity:.32; pointer-events:none; z-index:0;
  }

  .app{
    position:relative; z-index:1; width:100%; max-width:780px; margin:0 auto;
    background:linear-gradient(180deg, rgba(20,20,28,.72), rgba(10,10,15,.55));
    border:1px solid var(--line); border-radius:26px; padding:26px 24px 20px;
    backdrop-filter:blur(18px); box-shadow:0 30px 80px -20px rgba(0,0,0,.7);
  }

  .topbar{ position:relative; text-align:center; margin-bottom:16px; padding-top:2px; }
  .brandmark-wrap{ display:flex; flex-direction:column; align-items:center; margin-bottom:10px; }
  .brandmark{ display:inline-flex; align-items:baseline; gap:1px; }
  .brandmark-seven{
    font-family:var(--font-display); font-size:22px; font-weight:700;
    background:linear-gradient(135deg,#ff5252,#8b5cf6,#38bdf8);
    -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent;
  }
  .brandmark-by{ font-family:var(--font-display); font-size:16px; font-weight:600; color:var(--text-dim); margin-left:1px; }
  .brandmark-underline{
    width:28px; height:2px; margin-top:4px; border-radius:2px;
    background:linear-gradient(135deg,#ff5252,#8b5cf6,#38bdf8); opacity:.65;
  }
  .title{
    font-family:var(--font-display); font-size:26px; font-weight:700; letter-spacing:.02em; margin:0;
    background:linear-gradient(90deg,#ffffff,#b9b9cc); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent;
  }
  .tagline{ color:var(--text-dim); font-size:12.5px; margin:6px 0 0; }

  .transport{ display:flex; align-items:center; gap:9px; flex-wrap:wrap; margin-bottom:16px; }
  .transport-btn{
    display:flex; align-items:center; gap:7px; background:var(--surface2); border:1px solid var(--line); color:var(--text);
    padding:9px 13px; border-radius:12px; font-size:13px; font-weight:600; cursor:pointer;
    transition:border-color .15s ease, background .15s ease, box-shadow .15s ease;
  }
  .transport-btn:hover{ border-color:#3a3a4d; }
  .transport-btn .dot{ width:8px; height:8px; border-radius:50%; background:#ff5252; }
  .transport-btn.record.active{ background:rgba(255,82,82,.18); border-color:#ff5252; box-shadow:0 0 18px rgba(255,82,82,.35); }
  .transport-btn.record.active .dot{ animation:blink 1s steps(1) infinite; }
  @keyframes blink{ 50%{ opacity:.25; } }
  .transport-btn.playing{ background:rgba(56,189,248,.15); border-color:#38bdf8; }
  .transport-btn.locked{ opacity:.55; }
  .free-plan-banner{
    background:rgba(56,189,248,.1); border:1px solid rgba(56,189,248,.3); border-radius:10px;
    padding:9px 14px; font-size:12px; color:var(--text-dim); text-align:center; margin-bottom:14px;
  }
  .free-plan-banner a{ color:#38bdf8; font-weight:600; text-decoration:none; }

  .control{ display:flex; align-items:center; gap:8px; }
  .control.push-right{ margin-left:auto; }
  .control label{ font-size:11px; color:var(--text-dim); text-transform:uppercase; letter-spacing:.06em; }
  .bpm-stepper{ display:flex; align-items:center; gap:4px; background:var(--surface2); border:1px solid var(--line); border-radius:10px; padding:4px 6px; }
  .bpm-stepper button{ background:none; border:none; color:var(--text); font-size:15px; width:22px; height:22px; cursor:pointer; border-radius:6px; }
  .bpm-stepper button:hover{ background:rgba(255,255,255,.06); }
  #bpmValue{ font-family:var(--font-mono); min-width:30px; text-align:center; font-size:13px; }
  input[type=range]{ width:80px; accent-color:#38bdf8; }

  .toggle-pill{
    display:flex; align-items:center; gap:6px; background:var(--surface2); border:1px solid var(--line); border-radius:20px;
    padding:7px 13px; font-size:12px; color:var(--text-dim); cursor:pointer;
  }
  .toggle-pill .dot{ width:7px; height:7px; border-radius:50%; background:var(--text-faint); }
  .toggle-pill.on{ color:var(--text); border-color:#2dd4bf; }
  .toggle-pill.on .dot{ background:#2dd4bf; box-shadow:0 0 6px #2dd4bf; }

  .tabs{ display:flex; gap:6px; margin-bottom:16px; overflow-x:auto; scrollbar-width:none; }
  .tabs::-webkit-scrollbar{ display:none; }
  .tab-btn{
    flex:0 0 auto; background:var(--surface2); border:1px solid var(--line); color:var(--text-dim);
    font-size:12.5px; font-weight:600; padding:8px 14px; border-radius:10px; cursor:pointer; transition:all .15s ease;
  }
  .tab-btn.active{ color:var(--text); border-color:#38bdf8; background:rgba(56,189,248,.12); }
  .panel[hidden]{ display:none; }

  .panel-intro{ font-size:12px; color:var(--text-dim); margin:0 0 14px; line-height:1.5; }

  .kit-switcher{ display:grid; grid-template-columns:repeat(3,1fr); gap:8px; margin-bottom:16px; }
  .kit-btn{
    display:flex; flex-direction:column; align-items:flex-start; gap:2px;
    background:var(--surface2); border:1px solid var(--line); color:var(--text-dim);
    border-radius:10px; padding:8px 10px; cursor:pointer; overflow:hidden;
  }
  .kit-btn-num{ font-family:var(--font-mono); font-size:10px; color:var(--text-faint); }
  .kit-btn-name{ font-size:12px; font-weight:600; color:var(--text); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; max-width:100%; }
  .kit-btn.active{ border-color:#38bdf8; background:rgba(56,189,248,.12); }

  .kit-switcher-mini-row{ display:flex; align-items:center; gap:8px; margin-bottom:12px; flex-wrap:wrap; }
  .kit-mini-label{ font-size:11px; color:var(--text-dim); text-transform:uppercase; letter-spacing:.06em; flex:0 0 auto; }
  .kit-switcher-mini{ display:flex; gap:5px; flex-wrap:wrap; flex:1; }
  .kit-chip-mini{
    width:28px; height:28px; border-radius:8px; background:var(--surface2); border:1px solid var(--line);
    color:var(--text-dim); font-family:var(--font-mono); font-size:11px; font-weight:700; cursor:pointer;
    display:flex; align-items:center; justify-content:center; flex:0 0 auto;
  }
  .kit-chip-mini.active{ border-color:#38bdf8; background:rgba(56,189,248,.18); color:#fff; }

  .kit-name-row{ display:flex; align-items:center; gap:10px; margin-bottom:14px; }
  .kit-name-row label{ font-size:11px; color:var(--text-dim); text-transform:uppercase; letter-spacing:.06em; flex:0 0 auto; }
  .kit-name-row input[type=text]{
    flex:1; background:var(--surface2); border:1px solid var(--line); border-radius:8px;
    color:var(--text); font-size:13px; padding:8px 10px; font-family:var(--font-body);
  }
  .kit-padcount-row{ display:flex; align-items:center; gap:10px; margin-bottom:18px; }
  .kit-padcount-row label{ font-size:11px; color:var(--text-dim); text-transform:uppercase; letter-spacing:.06em; }
  .padcount-options{ display:flex; gap:6px; }
  .padcount-options button{ background:var(--surface2); border:1px solid var(--line); color:var(--text-dim); border-radius:8px; padding:6px 12px; font-size:12.5px; font-weight:600; cursor:pointer; }
  .padcount-options button.active{ color:#0a0a0f; background:#38bdf8; border-color:#38bdf8; }

  .mini-progress{ position:relative; height:6px; border-radius:4px; background:var(--surface2); margin-bottom:14px; overflow:hidden; }
  .mini-progress-fill{ position:absolute; top:0; left:0; height:100%; width:100%; transform-origin:left center; transform:scaleX(0); background:linear-gradient(90deg,#38bdf8,#8b5cf6); }

  .pads-song-bar{ display:flex; align-items:center; gap:10px; background:var(--surface); border:1px solid var(--line); border-radius:12px; padding:8px 12px; margin-bottom:14px; }
  .pads-song-name{ flex:1; font-size:12px; color:var(--text-dim); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }

  .pad-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:12px; }
  .pad{
    position:relative; aspect-ratio:1/0.85; border-radius:16px; border:1px solid var(--line);
    background:linear-gradient(160deg, var(--surface2), var(--surface)); color:var(--text);
    cursor:pointer; overflow:hidden; display:flex; flex-direction:column; justify-content:flex-end;
    padding:10px; -webkit-tap-highlight-color:transparent; user-select:none;
    touch-action:manipulation; will-change:transform;
    transition:transform .05s ease, box-shadow .08s ease;
  }
  .pad::before{
    content:''; position:absolute; inset:0;
    background:radial-gradient(circle at 30% 20%, var(--pad-color,#888) 0%, transparent 60%);
    opacity:.25; transition:opacity .15s ease;
  }
  .pad .key{ position:absolute; top:8px; left:10px; font-family:var(--font-mono); font-size:11px; color:var(--text-dim); border:1px solid var(--line); border-radius:5px; padding:1px 6px; }
  .pad .layer-badge{ position:absolute; top:8px; right:10px; font-family:var(--font-mono); font-size:10px; color:var(--text-faint); }
  .pad .name{ font-family:var(--font-display); font-size:16px; font-weight:600; letter-spacing:.02em; }
  .pad .sub{ font-size:11px; color:var(--text-dim); margin-top:1px; }
  .pad.active{ transform:scale(.95) translateY(2px); box-shadow:0 0 0 1px var(--pad-color,#fff), 0 0 30px var(--pad-color,transparent); }
  .pad.active::before{ opacity:.65; }

  .beat-grid-wrap{ overflow-x:auto; }
  .beat-grid-inner{ min-width:480px; }
  .beat-grid-header{ display:flex; align-items:center; gap:8px; margin-bottom:6px; }
  .beat-grid-header-spacer{ flex:0 0 60px; }
  .beat-grid-header-beats{ display:flex; flex:1; }
  .beat-grid-header-beats span{ flex:1; text-align:center; font-family:var(--font-mono); font-size:10px; color:var(--text-faint); }
  .beat-grid{ display:flex; flex-direction:column; gap:5px; }
  .beat-row{ display:flex; align-items:center; gap:8px; }
  .beat-row-label{ flex:0 0 60px; font-family:var(--font-mono); font-size:10px; color:var(--text-dim); border-left:3px solid var(--pad-color,#888); padding-left:6px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
  .beat-cells{ display:flex; gap:4px; flex:1; }
  .beat-cell{ flex:1; height:24px; border-radius:5px; border:1px solid var(--line); background:var(--surface2); cursor:pointer; padding:0; transition:background .1s ease, transform .1s ease; }
  .beat-cell-accent{ background:rgba(255,255,255,.05); }
  .beat-cell.on{ background:var(--pad-color,#fff); border-color:var(--pad-color,#fff); box-shadow:0 0 8px var(--pad-color,transparent); }
  .beat-cell.current{ transform:scale(1.12); outline:2px solid #fff; outline-offset:1px; }

  .sound-card{ border:1px solid var(--line); border-radius:14px; padding:12px; margin-bottom:10px; background:var(--surface); }
  .sound-card-header{ display:flex; align-items:center; gap:8px; margin-bottom:10px; }
  .sound-card-dot{ width:10px; height:10px; border-radius:50%; flex:0 0 auto; }
  .sound-card-name{ font-size:13px; font-weight:600; flex:1; }
  .sound-layers{ display:grid; grid-template-columns:repeat(2,1fr); gap:8px; }
  .sound-layer{ display:flex; align-items:center; gap:6px; background:var(--surface2); border:1px solid var(--line); border-radius:8px; padding:6px 8px; }
  .sound-layer-label{ font-family:var(--font-mono); font-size:10px; color:var(--text-faint); flex:0 0 auto; }
  .sound-layer-status{ flex:1; font-size:10.5px; color:var(--text-dim); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
  .sound-layer-upload{ position:relative; background:var(--surface); border:1px solid var(--line); border-radius:6px; padding:4px 9px; font-size:12px; font-weight:700; cursor:pointer; color:var(--text); flex:0 0 auto; }
  .sound-layer-upload input[type=file]{ position:absolute; inset:0; opacity:0; cursor:pointer; }
  .sound-layer-reset{ flex:0 0 auto; background:none; border:none; color:var(--text-faint); font-size:14px; cursor:pointer; padding:2px 4px; line-height:1; }
  .sound-layer-locked{ display:flex; align-items:center; gap:6px; background:var(--surface2); border:1px solid var(--line); border-radius:8px; padding:6px 8px; text-decoration:none; opacity:.7; }
  .sound-layer-locked .sound-layer-status{ color:var(--text-faint); }
  .sound-layer-lock{ margin-left:auto; font-size:11px; }

  .project-actions{ display:flex; flex-wrap:wrap; gap:10px; margin-top:16px; padding-top:16px; border-top:1px solid var(--line); align-items:center; }
  .project-btn{ position:relative; background:var(--surface2); border:1px solid var(--line); color:var(--text); border-radius:10px; padding:9px 14px; font-size:13px; font-weight:600; cursor:pointer; text-decoration:none; display:inline-flex; }
  .project-btn input[type=file]{ position:absolute; inset:0; opacity:0; cursor:pointer; }
  .project-status{ font-size:12px; color:var(--text-dim); width:100%; margin:4px 0 0; }

  .fx-pad-select{ display:flex; gap:6px; flex-wrap:wrap; margin-bottom:18px; }
  .fx-chip{ background:var(--surface2); border:1px solid var(--line); color:var(--text-dim); border-radius:9px; padding:7px 12px; font-size:12px; font-weight:600; cursor:pointer; }
  .fx-chip.selected{ color:#0a0a0f; background:var(--pad-color,#fff); border-color:var(--pad-color,#fff); }
  .fx-chip-locked{ opacity:.5; cursor:pointer; }
  .padcount-options button.locked{ opacity:.5; }
  .fx-row{ display:flex; align-items:center; gap:12px; margin-bottom:14px; }
  .fx-row label{ flex:0 0 76px; font-size:12px; color:var(--text-dim); text-transform:uppercase; letter-spacing:.05em; }
  .fx-row input[type=range]{ flex:1; width:auto; }
  .fx-row .fx-value{ flex:0 0 56px; font-family:var(--font-mono); font-size:12px; text-align:right; }
  .fx-divider{ border:none; border-top:1px solid var(--line); margin:18px 0; }
  .fx-section-title{ font-family:var(--font-display); font-size:13px; color:var(--text-dim); margin:18px 0 12px; text-transform:uppercase; letter-spacing:.06em; }
  .fx-section-title:first-of-type{ margin-top:0; }
  .fx-preview-btn, .fx-reset-btn{ background:var(--surface2); border:1px solid var(--line); color:var(--text); border-radius:10px; padding:8px 14px; font-size:12.5px; font-weight:600; cursor:pointer; margin-right:8px; }

  .song-upload-btn{ position:relative; display:inline-flex; background:var(--surface2); border:1px solid var(--line); border-radius:10px; padding:10px 16px; font-size:13px; font-weight:600; cursor:pointer; }
  .song-upload-btn input[type=file]{ position:absolute; inset:0; opacity:0; cursor:pointer; }
  .song-filename{ font-size:12px; color:var(--text-dim); margin-top:8px; font-family:var(--font-mono); }
  .song-player{ margin-top:18px; }
  .song-controls-row{ display:flex; align-items:center; gap:10px; margin-bottom:10px; }
  .song-playpause{ width:38px; height:38px; border-radius:50%; flex:0 0 auto; background:var(--surface2); border:1px solid var(--line); color:var(--text); font-size:13px; cursor:pointer; display:flex; align-items:center; justify-content:center; }
  .song-playpause.small{ width:30px; height:30px; font-size:11px; }
  .song-time{ font-family:var(--font-mono); font-size:11px; color:var(--text-dim); white-space:nowrap; flex:0 0 auto; }
  .song-seek{ flex:1; width:auto; }
  .song-volume-row{ display:flex; align-items:center; gap:10px; }

  .capture-section{ margin-top:22px; padding-top:18px; border-top:1px solid var(--line); }
  .capture-controls-row{ display:flex; align-items:center; gap:12px; margin-bottom:8px; flex-wrap:wrap; }
  .capture-timer{ font-family:var(--font-mono); font-size:13px; color:var(--text-dim); }
  .capture-preview{ margin-top:14px; display:flex; flex-direction:column; gap:10px; }
  .capture-preview audio{ width:100%; }

  .loop-pad-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:8px; }
  @media (min-width:420px){ .loop-pad-grid{ grid-template-columns:repeat(3,1fr); } }
  @media (min-width:620px){ .loop-pad-grid{ grid-template-columns:repeat(4,1fr); } }
  @media (min-width:780px){ .loop-pad-grid{ grid-template-columns:repeat(6,1fr); } }
  .loop-pad{ border:1px solid var(--line); border-radius:13px; padding:10px; background:var(--surface); transition:border-color .15s ease, box-shadow .15s ease; }
  .loop-pad.playing{ border-color:var(--pad-color,#38bdf8); box-shadow:0 0 0 1px var(--pad-color,#38bdf8), 0 0 16px rgba(56,189,248,.25); }
  .loop-pad-header{ display:flex; align-items:center; gap:6px; margin-bottom:6px; }
  .loop-pad-spinner{
    width:13px; height:13px; border-radius:50%; flex:0 0 auto;
    border:2px solid var(--pad-color,#888); border-top-color:transparent; opacity:.35;
  }
  .loop-pad-spinner.spinning{ opacity:1; animation:loopSpin 1.1s linear infinite; }
  @keyframes loopSpin{ from{ transform:rotate(0deg); } to{ transform:rotate(360deg); } }
  .loop-pad-name{ font-size:12px; font-weight:600; flex:1; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
  .loop-pad-clear{ background:none; border:none; color:var(--text-faint); font-size:14px; cursor:pointer; padding:0 2px; line-height:1; }
  .loop-pad-status{ font-size:10.5px; color:var(--text-dim); margin-bottom:8px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
  .loop-pad-actions{ display:flex; gap:5px; }
  .loop-pad-iconbtn{
    position:relative; width:28px; height:28px; flex:0 0 auto;
    display:flex; align-items:center; justify-content:center;
    background:var(--surface2); border:1px solid var(--line); border-radius:7px;
    font-size:12px; font-weight:700; color:var(--text); cursor:pointer;
  }
  .loop-pad-iconbtn input[type=file]{ position:absolute; inset:0; opacity:0; cursor:pointer; }
  .loop-pad-record.recording{ background:rgba(255,82,82,.25); border-color:#ff5252; color:#ff5252; animation:blink 1s steps(1) infinite; }
  .loop-pad-play{ flex:1; display:flex; align-items:center; justify-content:center; background:var(--surface2); border:1px solid var(--line); border-radius:7px; padding:5px; font-size:12px; cursor:pointer; color:var(--text); }
  .loop-pad-play:disabled{ opacity:.4; cursor:not-allowed; }
  .loop-pad-play.active{ background:rgba(56,189,248,.18); border-color:#38bdf8; }

  .hint{ text-align:center; margin-top:18px; font-family:var(--font-mono); font-size:11px; color:var(--text-faint); letter-spacing:.04em; }
  .credit{ margin-top:6px; font-size:10px; color:var(--text-faint); letter-spacing:.03em; }

  @media (max-width:480px){ .control.push-right{ margin-left:0; } .fx-row label{ flex:0 0 64px; } }

  @media (orientation:landscape){
    .app{ padding:16px 20px 14px; }
    .brandmark-wrap{ display:none; }
    .tagline{ display:none; }
    .title{ font-size:18px; }
    .topbar{ margin-bottom:10px; }
    .transport{ margin-bottom:12px; }
    .tabs{ margin-bottom:12px; }
  }

  @media (prefers-reduced-motion: reduce){
    *{ animation-duration:.001ms !important; transition-duration:.001ms !important; }
  }