/* ═══════════════════════════════════════════════
   calculadora.css — EnergiAVerde
   Estilos del formulario de estimación de energía
   renovable (Nivel 2)
═══════════════════════════════════════════════ */

#calculadora { background: var(--bg); }

/* Layout de dos columnas: formulario | resultado */
.calc-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
@media (max-width: 700px) {
  .calc-layout { grid-template-columns: 1fr; }
}

/* Grupos del formulario */
.form-group { margin-bottom: 1.2rem; }
.form-group label {
  display: block;
  font-size: 0.76rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}
.form-group input,
.form-group select { width: 100%; }

/* Panel de resultado */
.result-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  min-height: 340px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.result-empty { color: var(--muted); font-size: 0.9rem; }

/* Anillo circular SVG */
.ring-container {
  position: relative;
  width: 140px;
  height: 140px;
  margin-bottom: 1rem;
}
.ring-container svg { transform: rotate(-90deg); }

.ring-bg   { fill: none; stroke: var(--surface2); stroke-width: 10; }
.ring-fill {
  fill: none;
  stroke-width: 10;
  stroke-linecap: round;
  transition: stroke-dashoffset 1s cubic-bezier(.4,0,.2,1), stroke 0.5s;
}

.ring-center {
  position: absolute; inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.ring-pct {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.8rem;
  letter-spacing: -0.05em;
  line-height: 1;
}
.ring-unit     { font-size: 0.7rem; color: var(--muted); }
.result-summary { color: var(--text-dim); font-size: 0.9rem; margin-bottom: 1.25rem; }

/* Desglose por fuente */
.breakdown { width: 100%; text-align: left; }
.breakdown-row {
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--border);
}
.breakdown-row:last-child { border: none; }
.breakdown-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  margin-bottom: 0.2rem;
}
.breakdown-bar {
  height: 4px;
  background: var(--surface2);
  border-radius: 2px;
  overflow: hidden;
}
.breakdown-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.9s cubic-bezier(.4,0,.2,1);
}