:root{
  --bg:#ffffff;
  --card:#ffffff;
  --text:#14161a;
  --muted:#5b616b;
  --line:#e8eaee;
  --accent:#b10f1b;
  --danger:#c21a1a;
  --r:16px;
  --shadow: 0 10px 30px rgba(20,22,26,.06);
}

*{ box-sizing:border-box; }

html,body{ height:100%; }

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Montserrat", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  -webkit-text-size-adjust:100%;
}

/* ✅ Fuerza Montserrat en controles iOS/Safari */
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

select{
  -webkit-appearance: none;
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--muted) 50%),
    linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position:
    calc(100% - 18px) calc(50% - 2px),
    calc(100% - 12px) calc(50% - 2px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 34px !important;
}

.app{ max-width:720px; margin:0 auto; padding:18px 16px 40px; }

.topbar{ display:flex; align-items:flex-start; justify-content:space-between; gap:12px; margin-bottom:14px; }
.brand{ display:flex; gap:12px; align-items:flex-start; }
.dot{ width:10px; height:10px; border-radius:999px; background:var(--accent); margin-top:10px; flex:0 0 auto; }

.title{ font-size:18px; margin:0; letter-spacing:-0.2px; }
.subtitle{ margin:6px 0 0; color:var(--muted); font-size:12.5px; line-height:1.35; }

.lang{ display:flex; align-items:center; }

.select{
  border:1px solid var(--line);
  border-radius:12px;
  padding:10px 12px;
  background:#fff;
  color:var(--text);
  font-size:13px;
}

.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:14px 14px 12px;
  box-shadow:var(--shadow);
  margin-top:12px;
}

.cardTitle{ margin:0 0 12px; font-size:14px; letter-spacing:-0.1px; }

.modeRow{ display:flex; gap:10px; margin:6px 0 12px; }

.modeBtn{
  flex:1;
  border:1px solid var(--line);
  background:#fff;
  border-radius:12px;
  padding:10px 12px;
  font-size:13px;
  cursor:pointer;
  text-align:center;
  user-select:none;
  color: var(--text);
}

.modeBtnActive{
  border-color: rgba(177,15,27,.55);
  box-shadow:0 0 0 3px rgba(177,15,27,.10);
}

.grid{ display:grid; grid-template-columns:1fr 1fr 1.4fr; gap:10px; }
.fieldWide{ grid-column:3; }

.field{ display:flex; flex-direction:column; gap:6px; }
.label{ font-size:12px; color:var(--muted); }

.input{
  width:100%;
  padding:12px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  font-size:16px;
  outline:none;
  background:#fff;
  line-height:1.1;
}
.input:focus{
  border-color: rgba(177,15,27,.55);
  box-shadow:0 0 0 3px rgba(177,15,27,.10);
}

.hintBox{
  border:1px solid var(--line);
  border-radius:12px;
  padding:10px 12px;
  color:var(--muted);
  font-size:12.5px;
  line-height:1.35;
}

.msg{ min-height:22px; margin-top:8px; }
.error{ margin:0; color:var(--danger); font-size:12px; }

.actions{ display:flex; gap:10px; margin-top:10px; }
.btn{
  border-radius:12px;
  padding:12px 14px;
  font-size:14px;
  border:1px solid transparent;
  background:#fff;
  color:var(--text);
  cursor:pointer;
}

.btnPrimary{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
  font-weight:600;
  flex:1;
}

.btnGhost{
  border-color:var(--line);
  color:var(--text);
}

.result{
  min-height:160px;
  border:1px dashed rgba(232,234,238,.85);
  border-radius:14px;
  padding:12px;
}

.placeholder{ color:var(--muted); font-size:13px; line-height:1.4; }

.kpi{ display:flex; flex-direction:column; gap:6px; }
.kpiTitle{ font-size:16px; font-weight:700; letter-spacing:-0.2px; }

.kpiRow{
  display:flex;
  flex-wrap:wrap;
  gap:8px 10px;
  color:var(--muted);
  font-size:13px;
  align-items:baseline;
}

.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--text);
  font-size:12.5px;
  white-space:nowrap;
}

.hr{ height:1px; background:var(--line); border:0; margin:12px 0; }
.small{ font-size:12.5px; color:var(--muted); line-height:1.4; }

.shareRow{
  display:flex;
  justify-content:flex-end;
  margin-top:10px;
}
.btnShare{ width:100%; }

.foot{ margin-top:14px; text-align:center; }
.footText{ margin:0; color:var(--muted); font-size:12px; }

/* Screen reader */
.sr-only{
  position:absolute!important;
  width:1px; height:1px;
  padding:0; margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}

@media (max-width:520px){
  .grid{ grid-template-columns:1fr 1fr; }
  .fieldWide{ grid-column:1 / span 2; }
}

/* ✅ PDF/Print: imprime solo encabezado + resultado */
@media print{
  body{ background:#fff; }
  .app{ max-width:100%; padding:0; }
  .card{ box-shadow:none; }
  .no-print{ display:none !important; }
  .result{ border:1px solid #ddd; }
  .foot{ margin-top:10px; }
}