:root {
  --bg: #0a0e14;
  --bg-card: #111720;
  --bg-input: #0c1018;
  --text: #d8dee9;
  --text-secondary: #7e8a9c;
  --text-muted: #3b4455;
  --accent: #5de5d5;
  --primary: #3b82f6;
  --red: #ef4444;
  --amber: #f59e0b;
  --green: #22c55e;
  --red-bg: rgba(239,68,68,0.06);
  --amber-bg: rgba(245,158,11,0.06);
  --green-bg: rgba(34,197,94,0.06);
  --border: rgba(93,229,213,0.06);
  --border-strong: rgba(93,229,213,0.15);
  --radius: 10px;
  --font: 'Inter',system-ui,sans-serif;
  --mono: 'JetBrains Mono',monospace;
  --transition: 0.2s ease;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;overflow:hidden}

.header{display:flex;align-items:center;justify-content:space-between;padding:6px 14px;background:var(--bg-card);border-bottom:1px solid var(--border);height:40px}
.header-left,.header-right{display:flex;align-items:center;gap:8px}
.logo{font-size:1rem}
h1{font-size:0.88rem;font-weight:700;color:var(--accent)}

.btn{padding:4px 10px;border:1px solid var(--border);border-radius:8px;background:transparent;color:var(--text-secondary);font-family:var(--font);font-size:0.72rem;cursor:pointer;transition:all var(--transition);white-space:nowrap}
.btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}
.btn:disabled{opacity:0.4;cursor:not-allowed}
.btn.primary{background:rgba(93,229,213,0.06);border-color:var(--accent);color:var(--accent);font-weight:600}

.app-layout{display:flex;height:calc(100vh - 40px)}
.input-panel,.results-panel{flex:1;display:flex;flex-direction:column;overflow:hidden}
.input-panel{border-right:1px solid var(--border)}

.panel-header{display:flex;align-items:center;justify-content:space-between;padding:6px 10px;font-size:0.75rem;font-weight:600;color:var(--text-muted);border-bottom:1px solid var(--border);background:var(--bg-card)}

.editor{flex:1;border:none;resize:none;background:var(--bg-input);color:var(--text);font-family:var(--mono);font-size:0.78rem;line-height:1.7;padding:12px;tab-size:2}
.editor:focus{outline:none}

.audit-btn{margin:8px 10px;padding:8px}

/* Score badge */
#score-badge{font-size:0.75rem;font-weight:700;padding:2px 8px;border-radius:6px}
.score-a{background:var(--green-bg);color:var(--green)}
.score-b{background:var(--green-bg);color:var(--green)}
.score-c{background:var(--amber-bg);color:var(--amber)}
.score-d{background:var(--amber-bg);color:var(--amber)}
.score-f{background:var(--red-bg);color:var(--red)}

/* Results */
.results{flex:1;overflow-y:auto;padding:8px}
.empty-state{text-align:center;padding:40px 20px;color:var(--text-muted);font-size:0.82rem}
.empty-state .sub{font-size:0.72rem;margin-top:6px}

.stats-row{display:flex;gap:6px;margin-bottom:10px}
.stat{padding:3px 8px;border-radius:6px;font-size:0.68rem;font-weight:600}
.stat.critical{background:var(--red-bg);color:var(--red)}
.stat.warning{background:var(--amber-bg);color:var(--amber)}
.stat.info{background:var(--green-bg);color:var(--green)}

.finding{padding:8px 10px;margin-bottom:4px;border-radius:var(--radius);border-left:3px solid;transition:all var(--transition)}
.finding.critical{border-color:var(--red);background:var(--red-bg)}
.finding.warning{border-color:var(--amber);background:var(--amber-bg)}
.finding.info{border-color:var(--green);background:var(--green-bg)}
.finding-header{display:flex;align-items:center;justify-content:space-between}
.finding-title{font-size:0.78rem;font-weight:600}
.finding-sev{font-size:0.58rem;padding:1px 5px;border-radius:4px;font-weight:700;text-transform:uppercase}
.finding.critical .finding-sev{background:rgba(239,68,68,0.15);color:var(--red)}
.finding.warning .finding-sev{background:rgba(245,158,11,0.15);color:var(--amber)}
.finding.info .finding-sev{background:rgba(34,197,94,0.15);color:var(--green)}
.finding-desc{font-size:0.72rem;color:var(--text-secondary);margin-top:3px}
.finding-fix{font-size:0.65rem;color:var(--accent);margin-top:3px;font-style:italic}

.pass-msg{text-align:center;padding:20px;color:var(--green);font-size:0.85rem}

@media(max-width:640px){
  .app-layout{flex-direction:column}
  .input-panel{border-right:none;border-bottom:1px solid var(--border);max-height:45vh}
}