@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&display=swap');

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --primary:#00FF66;--secondary:#33FF99;--accent:#00CCFF;
  --bg:#0A0A0A;--surface:#111111;--surface2:#1A1A1A;
  --text:#00FF66;--text-dim:#338844;--border:#1F2F1F;
  --radius:6px;--font:'JetBrains Mono','Courier New',monospace;
}

html{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.4}
body{min-height:100vh;display:flex;flex-direction:column}

.header{padding:.75rem 1rem;display:flex;align-items:center;justify-content:space-between;gap:.5rem;border-bottom:1px solid var(--border);flex-wrap:wrap}
.header h1{font-size:.9rem;font-weight:700;color:var(--primary)}
.header-actions{display:flex;gap:.3rem;flex-wrap:wrap}

.btn{padding:.3rem .6rem;border-radius:var(--radius);font-size:.7rem;font-weight:600;cursor:pointer;border:1px solid var(--border);background:transparent;color:var(--text-dim);transition:all .15s;font-family:var(--font)}
.btn:hover{background:var(--surface2);color:var(--text);border-color:var(--primary)}
.btn.active{background:var(--primary);color:#000;border-color:var(--primary)}
.btn-primary{background:var(--primary);color:#000;border-color:var(--primary)}
.btn-primary:hover{background:var(--secondary)}

.main{flex:1;display:flex;flex-direction:column;padding:.5rem}

/* Toolbar */
.toolbar{display:flex;gap:.3rem;margin-bottom:.5rem;flex-wrap:wrap;align-items:center}
.toolbar .sep{width:1px;height:20px;background:var(--border);margin:0 .3rem}
.char-input{width:28px;padding:.2rem;text-align:center;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);color:var(--primary);font-size:.85rem;font-family:var(--font);outline:none}
.char-input:focus{border-color:var(--primary)}

/* Canvas */
.canvas-wrap{flex:1;overflow:auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:2px;position:relative}
.ascii-grid{display:grid;line-height:1;cursor:crosshair;user-select:none;-webkit-user-select:none}
.ascii-cell{width:9px;height:16px;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--text-dim);transition:background .1s}
.ascii-cell:hover{background:rgba(0,255,102,.08)}
.ascii-cell.filled{color:var(--primary)}
.ascii-cell.cursor{background:rgba(0,255,102,.15);outline:1px solid var(--primary)}

/* Frame info */
.frame-info{display:flex;align-items:center;gap:.5rem;font-size:.68rem;color:var(--text-dim);margin-bottom:.3rem;flex-wrap:wrap}
.frame-info span{color:var(--primary);font-weight:700}

/* Timeline */
.timeline{display:flex;align-items:center;gap:.3rem;padding:.5rem;border-top:1px solid var(--border);overflow-x:auto}
.frame-thumb{width:80px;height:32px;border-radius:4px;border:1px solid var(--border);background:var(--surface);overflow:hidden;cursor:pointer;font-size:4px;line-height:1;color:var(--text-dim);padding:1px;white-space:pre;transition:border-color .15s;flex-shrink:0}
.frame-thumb:hover{border-color:var(--text-dim)}
.frame-thumb.active{border-color:var(--primary);box-shadow:0 0 4px rgba(0,255,102,.3)}
.frame-thumb .frame-num{font-size:6px;color:var(--primary);font-weight:700}

.timeline-actions{display:flex;gap:.2rem;flex-shrink:0}

/* Delay */
.delay-input{width:50px;padding:.2rem;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:.68rem;font-family:var(--font);outline:none;text-align:center}

/* Player */
.player-overlay{position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:100;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(4px)}
.player-overlay.hidden{display:none}
.player-box{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;text-align:center}
.player-display{font-size:13px;line-height:16px;white-space:pre;color:var(--primary);margin-bottom:.5rem;text-align:left}
.player-controls{display:flex;gap:.3rem;justify-content:center}

.toast{position:fixed;bottom:1rem;right:1rem;background:var(--surface);border:1px solid var(--primary);color:var(--primary);padding:.4rem .7rem;border-radius:var(--radius);font-size:.7rem;z-index:200;transform:translateY(80px);opacity:0;transition:all .3s}
.toast.show{transform:translateY(0);opacity:1}
@media(max-width:768px){.ascii-cell{width:7px;height:12px;font-size:10px}}