:root{--bg:#0B0E11;--bg2:#141820;--bg3:#1C2230;--border:rgba(0,184,148,0.12);--border2:rgba(0,184,148,0.3);--t1:#F0ECF6;--t2:#A8A3C0;--t3:#6E698A;--primary:#00B894;--accent:#6C5CE7;--green:#4ADE80;--yellow:#FFD93D;--red:#EF4444;--r:10px;--tr:0.2s ease;--f:'Inter',-apple-system,sans-serif;--m:'SF Mono','Fira Code',monospace}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--f);background:var(--bg);color:var(--t1);-webkit-font-smoothing:antialiased;min-height:100vh}
.app-container{max-width:900px;margin:0 auto;padding:0 20px 40px}
.app-header{padding:16px 0;border-bottom:1px solid var(--border);margin-bottom:24px}
.header-content{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px}
.logo-group{display:flex;align-items:center;gap:12px}
.logo-icon{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:linear-gradient(135deg,rgba(0,184,148,0.12),rgba(108,92,231,0.08));border-radius:var(--r);border:1px solid var(--border)}
h1{font-size:1.1rem;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.header-actions{display:flex;gap:6px;align-items:center}
.format-select{padding:6px 10px;background:var(--bg3);border:1px solid var(--border);border-radius:8px;color:var(--t1);font-family:var(--f);font-size:0.82rem}
.btn{padding:8px 14px;border:none;border-radius:8px;font-family:var(--f);font-size:0.8rem;font-weight:600;cursor:pointer;transition:all var(--tr)}
.btn-primary{background:linear-gradient(135deg,var(--primary),#26D9A0);color:#fff;box-shadow:0 2px 12px rgba(0,184,148,0.3)}
.btn-primary:hover{transform:translateY(-1px)}
.btn-accent{background:linear-gradient(135deg,var(--accent),#8B7FF0);color:#fff;box-shadow:0 2px 12px rgba(108,92,231,0.3)}
.btn-accent:hover{transform:translateY(-1px)}
.drop-zone{padding:32px;border:2px dashed var(--border);border-radius:var(--r);text-align:center;cursor:pointer;transition:border-color var(--tr);margin-bottom:12px}
.drop-zone:hover,.drop-zone.dragover{border-color:var(--primary)}
.drop-icon{font-size:2rem;margin-bottom:8px}
.drop-zone p{font-size:0.85rem;color:var(--t2)}
.drop-sub{font-size:0.75rem!important;color:var(--t3)!important;margin-top:4px}
.text-input-section{margin-bottom:16px}
.text-editor{width:100%;padding:12px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--r);color:var(--t1);font-family:var(--m);font-size:0.82rem;resize:vertical;outline:none}
.text-editor::placeholder{color:var(--t3)}
.results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-bottom:16px}
.stat-card{padding:16px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--r);text-align:center}
.stat-value{font-size:1.4rem;font-weight:800;font-family:var(--m);color:var(--primary);margin-bottom:4px}
.stat-value.accent{color:var(--accent)}
.stat-label{font-size:0.72rem;color:var(--t3);text-transform:uppercase;letter-spacing:0.06em}
.bar-chart{margin-bottom:16px}
.bar-row{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.bar-lbl{font-size:0.78rem;color:var(--t3);width:80px;text-align:right;flex-shrink:0}
.bar{height:24px;border-radius:4px;transition:width 0.5s ease;min-width:2px}
.original-bar{background:linear-gradient(90deg,var(--accent),#8B7FF0)}
.compressed-bar{background:linear-gradient(90deg,var(--primary),#26D9A0)}
.history-list{display:flex;flex-direction:column;gap:6px}
.history-item{padding:10px 12px;background:var(--bg2);border:1px solid var(--border);border-radius:8px;display:flex;align-items:center;gap:12px;font-size:0.82rem;color:var(--t2)}
.history-name{flex:1;font-weight:600;color:var(--t1)}
.history-stat{font-family:var(--m);font-size:0.75rem;color:var(--t3)}