/* estilo.css - Assistente de Gráficos */
:root{
  --bg:#f7f9fc;
  --panel:#ffffff;
  --muted:#6b7280;
  --accent:#2563eb;
  --danger:#dc2626;
  --success:#16a34a;
  --glass: rgba(15,23,42,0.03);
}
/* Reset de margem/padding global para remover espaçamento do body */
html, body { margin: 0; padding: 0; }

/* Mobile / responsive improvements */
html, body { -webkit-text-size-adjust: 100%; -webkit-font-smoothing: antialiased; }
.charts-assistant{flex-wrap:wrap;padding:12px}
.left-panel, .right-panel{box-sizing:border-box}
.sheet-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;max-width:100%}
.sheet{min-width:fit-content}

@media (max-width:600px){
  .charts-assistant{gap:10px;padding:8px}
  .left-panel, .right-panel{width:100%}
  .right-panel{order:2}
  .left-panel{order:1}
  .btn{padding:6px 8px;font-size:13px}
  .preview-actions .btn{padding:8px;font-size:13px}
  .palette-preview{height:28px}
  .palette-samples .swatch{width:14px;height:14px}
  .sheet th,.sheet td{padding:6px;min-width:72px}
  .chart-wrap{height:260px}
}
*{box-sizing:border-box}
.tool-container{max-width:1200px;margin:0 auto}
.charts-assistant{display:flex;gap:18px;align-items:flex-start}
.left-panel{flex:1;min-width:320px}
.right-panel{width:460px}
.section-header{display:flex;align-items:center;justify-content:space-between}
.section-header h2{margin:0 0 8px 0;font-size:1.1rem}
.sheet-wrap{background:var(--panel);border-radius:8px;padding:12px;box-shadow:0 1px 3px rgba(2,6,23,0.06);margin-top:5px;margin-bottom:12px;overflow:auto}
.sheet{min-width:-webkit-fit-content;min-width:-moz-fit-content;min-width:fit-content}
.sheet{width:100%;border-collapse:collapse;font-size:14px}
.sheet th,.sheet td{border:1px solid #e6e9ef;padding:8px;min-width:60px}
.sheet thead th{background:linear-gradient(180deg,#fbfdff,#f1f6ff);font-weight:600}
.sheet td{background:white}
.sheet td[contenteditable="true"]:focus{outline:2px solid var(--accent);background:#eef4ff}
.cell-active{box-shadow:inset 0 0 0 2px rgba(37,99,235,0.06)}
.btn{background:linear-gradient(180deg,#ffffff,#fbfdff);border:1px solid rgba(15,23,42,0.06);padding:8px 12px;border-radius:10px;cursor:pointer;margin-left:6px;color:var(--muted);box-shadow:0 2px 6px rgba(2,6,23,0.04);transition:transform .12s ease,box-shadow .12s ease,background-color .12s ease}
.btn.primary{background:linear-gradient(180deg,var(--accent),#1f6fe6);color:white;border-color:transparent;box-shadow:0 8px 18px rgba(37,99,235,0.12)}
.btn.warn{background:linear-gradient(180deg,#fff5f5,#ffecec);border-color:transparent;color:var(--danger);box-shadow:0 2px 6px rgba(220,38,38,0.06)}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(2,6,23,0.08)}
.import-export{display:flex;flex-direction:column;gap:8px;margin-top:8px}
.file-label input{display:inline-block}
.feedback{min-height:28px;padding:6px 8px;border-radius:6px;color:var(--muted);font-size:13px}
.sheet-section .feedback{margin-top:10px}
.feedback.success{background:rgba(22,163,74,0.08);color:var(--success)}
.feedback.error{background:rgba(220,38,38,0.06);color:var(--danger)}
.chart-config{background:var(--panel);border-radius:8px;padding:12px;box-shadow:0 1px 3px rgba(2,6,23,0.06);margin-top:12px}
.field{margin-bottom:10px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
.field input,.field select{width:100%;padding:8px;border:1px solid #e6e9ef;border-radius:6px}
.field.horizontal{display:flex;gap:8px}
.options{display:flex;flex-direction:column;gap:6px;align-items:flex-start}
.options label{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);white-space:nowrap}
.options strong{font-weight:700}
.chart-config .options{padding:8px;border-radius:6px;background:var(--glass)}
.preview{background:var(--panel);border-radius:8px;padding:12px;box-shadow:0 1px 3px rgba(2,6,23,0.06)}
.preview-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;gap:8px}
.preview-header h2{margin:0}
.chart-wrap{height:420px;border:1px dashed #e6e9ef;border-radius:6px;padding:6px;background:linear-gradient(180deg, rgba(255,255,255,0.6), rgba(250,250,250,0.8));position:relative}
.palette-row{display:flex;gap:8px;align-items:center}
.palette-select{min-width:160px;padding:8px;border-radius:8px;border:1px solid #e6e9ef;background:white}
.palette-preview{height:36px;flex:1;border-radius:6px;border:1px solid #e6e9ef}
.palette-samples{margin-top:8px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.palette-samples .swatch{width:16px;height:16px;border-radius:2px;border:1px solid rgba(0,0,0,0.12);box-shadow:0 0 0 1px rgba(255,255,255,0.6) inset;position:relative;cursor:pointer}
.palette-samples .swatch::after{content: attr(data-hex);position:absolute;left:50%;transform:translateX(-50%);bottom:calc(100% + 6px);background:#fff;color:#000;padding:4px 6px;border-radius:4px;font-size:11px;white-space:nowrap;box-shadow:0 2px 6px rgba(0,0,0,0.15);opacity:0;pointer-events:none;transition:opacity .12s ease}
.palette-samples .swatch:hover::after{opacity:1}
.palette-samples .swatch:focus{outline:2px solid rgba(0,0,0,0.12)}

.palette-swatch{display:inline-block;width:18px;height:18px;border-radius:3px;margin-right:4px;border:1px solid rgba(0,0,0,0.06)}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:6px;padding:6px;border:1px solid rgba(15,23,42,0.08);background:transparent}
.icon-btn i{font-size:16px;color:var(--accent)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.icon-btn{transition:box-shadow .18s ease,transform .12s ease,background-color .12s ease}
.icon-btn:hover{box-shadow:0 6px 18px rgba(37,99,235,0.12);transform:translateY(-2px);background:rgba(37,99,235,0.04)}
.chart{width:100%;height:100%}
.data-preview{margin-top:12px;background:var(--panel);padding:10px;border-radius:8px}
.data-inspector{font-size:13px;color:var(--muted);max-height:160px;overflow:auto}

/* Responsive */
@media (max-width:980px){
  .charts-assistant{flex-direction:column}
  .right-panel{width:100%}
}

@media (max-width:600px){
  .sheet-wrap{overflow:auto}
  .sheet th,.sheet td{padding:6px;min-width:56px}
  .chart-wrap{height:300px}
  .preview-actions .btn{padding:8px;font-size:13px}
  .export-buttons .btn{display:block;width:100%;margin:6px 0}
  .palette-row{flex-direction:column;align-items:stretch}
}

/* Subtle interactions */
.sheet td:hover{background:#fbfdff}
.preview-actions .btn{margin-left:8px}