/* === VARIABLES === */
:root {
    --color-primario: #005bb5;
    --color-secundario: #0077cc;
    --color-fondo: #f4f7fa;
    --color-texto: #333;
    --color-blanco: #ffffff;
    --color-gris-claro: #e0e0e0;
    --color-azul-claro: #f0f4ff;
    --color-shadow: rgba(0, 0, 0, 0.1);
    --fuente-principal: 'Satoshi', sans-serif;
  }
  
  /* === RESET === */
  body {
    font-family: var(--fuente-principal);
    margin: 0;
    padding: 0;
    background-color: var(--color-fondo);
    color: var(--color-texto);
  }
  
  /* === ESTRUCTURA PRINCIPAL === */
  header {
    background-color: var(--color-primario);
    color: white;
    padding: 20px;
    text-align: center;
  }

  header h1 {
    margin: 12px 0 0;
  }

  .inicio-link {
    display: inline-flex;
    align-items: center;
    padding: 10px 16px;
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: 12px;
    color: white;
    font-weight: 700;
    text-decoration: none;
    transition: background-color 0.2s ease, transform 0.2s ease;
  }

  .inicio-link:hover {
    background-color: rgba(255, 255, 255, 0.16);
    transform: translateY(-1px);
  }
  
  main.contenedor {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    padding: 20px;
    justify-content: center;
    max-width: 1200px;
    margin: auto;
  }
  
  section.formulario,
  section#resumen-cuotas {
    background-color: var(--color-blanco);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
    flex: 1 1 400px;
  }
  
  /* === FORMULARIO === */
  .formulario form {
    max-width: 420px;
    margin: 0 auto;
  }
  
  label {
    display: block;
    margin-top: 1.2rem;
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-texto);
  }
  
  input[type="text"],
  input[type="number"],
  .input-wrapper select {
    width: 100%;
    padding: 16px 20px;
    font-size: 1.1rem;
    border: none;
    border-radius: 15px;
    background-color: var(--color-blanco);
    box-shadow: inset 0 0 0 1px #ccc;
    box-sizing: border-box;
    transition: all 0.3s ease;
  }
  
  input:focus,
  select:focus {
    outline: none;
    box-shadow: inset 0 0 0 2px var(--color-primario);
  }
  
  /* === INPUT WRAPPER (con prefijo/sufijo) === */
  .input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
  }
  
  .input-wrapper input {
    padding: 10px 40px;
    height: 45px;
    background-color: var(--color-azul-claro);
  }
  
  .input-prefix,
  .input-suffix {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
    color: #555;
    pointer-events: none;
  }
  
  .input-prefix {
    left: 12px;
    width: 30px;
    text-align: center;
  }
  
  .input-suffix {
    right: 12px;
  }
  
  /* === SELECT STYLING === */
  .select-wrapper {
    display: flex;
    align-items: center;
    border: 2px solid var(--color-secundario);
    border-radius: 12px;
    padding: 0 12px;
    background-color: var(--color-blanco);
    height: 48px;
  }
  
  .select-wrapper select {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 1rem;
    padding: 10px 0;
    appearance: none;
    outline: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 140 140' xmlns='http://www.w3.org/2000/svg'%3E%3Cpolyline points='10,50 70,110 130,50' fill='none' stroke='%234a4a4a' stroke-width='20' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.2rem;
  }
  
  .suffix-text {
    margin-left: 8px;
    color: #666;
    font-size: 1rem;
    white-space: nowrap;
  }
  
  /* === BOTONES === */
  .button,
  .boton,
  .formulario button {
    margin-top: 1.8rem;
    padding: 16px;
    width: 100%;
    background: linear-gradient(90deg, var(--color-primario), var(--color-primario));
    color: white;
    border: none;
    border-radius: 15px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
  }
  
  .button:hover,
  .boton:hover,
  .formulario button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(94, 93, 240, 0.3);
  }
  
  /* === TABLA DE CUOTAS === */
  #tabla-cuotas {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
    font-size: 1rem;
  }
  
  #tabla-cuotas th,
  #tabla-cuotas td {
    border: 1px solid #ccc;
    padding: 12px;
    text-align: center;
  }
  
  #tabla-cuotas th {
    background-color: var(--color-gris-claro);
    font-weight: 600;
  }
  
  .blur-row {
    text-align: center;
    color: #999;
    font-style: italic;
    background: linear-gradient(to right, #ffffff 0%, #f8f8f8 50%, #ffffff 100%);
    filter: blur(0.2px);
    opacity: 0.7;
    cursor: pointer;
    transition: all 0.3s ease;
  }
  
  .blur-row:hover {
    background-color: #f0f0f0;
    opacity: 1;
    filter: none;
    font-weight: bold;
  }
  
  /* === RESULTADOS === */
  .resultados-container {
    background-color: var(--color-azul-claro);
    padding: 2rem;
    border-radius: 1rem;
    margin-top: 2rem;
    box-shadow: 0 4px 8px var(--color-shadow);
  }
  
  .resultados-container h2 {
    font-size: 1.5rem;
    font-weight: bold;
    color: #1f2d73;
    margin-bottom: 1.5rem;
  }
  
  .resultados-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
  }
  
  .resultado-item {
    background-color: white;
    padding: 1.5rem;
    border-radius: 0.75rem;
    box-shadow: 0 2px 6px var(--color-shadow);
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
  }
  
  .resultado-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px var(--color-shadow);
  }
  
  .resultado-item span {
    display: block;
    font-size: 1.1rem;
    color: #6b6b6b;
    margin-bottom: 0.5rem;
  }
  
  .resultado-item strong {
    font-size: 5.75rem;
    font-weight: bold;
    color: #1f2d73;
  }
  
  .resultado-item div {
    font-size: 2rem;
    font-weight: bold;
    color: #000;
    margin-top: 5px;
  }
  
  /* === CHART === */
  #chart-container {
    width: 90%;
    max-width: 1000px;
    height: 500px;
    margin: 30px auto;
  }
  
  #amortizationChart {
    width: 100% !important;
    height: 100% !important;
  }
  
  /* === FOOTER === */
  footer {
    text-align: center;
    background-color: #f0f0f0;
    padding: 15px;
    font-size: 14px;
    color: #666;
  }
  
  /* === BANNER ADS === */
  .ads-banner {
    margin: 20px auto;
    max-width: 728px;
    min-height: 90px;
    background-color: #ddd;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    font-size: 14px;
    border-radius: 8px;
  }
  
  /* === RESPONSIVE === */
  @media (max-width: 600px) {
    main.contenedor {
      padding: 10px;
    }
  
    section.formulario,
    section#resumen-cuotas {
      padding: 15px;
    }
  }
  
  @media (min-width: 768px) {
    label,
    input,
    button {
      font-size: 1.1rem;
    }
  
    input,
    button {
      padding: 14px;
    }
  }

.formulario form {
  max-width: 420px;
  margin: 0 auto;
}

label {
  display: block;
  margin-top: 1.2rem;
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-texto);
}

/* Eliminar flechitas en campos numéricos */
input[type=number]::-webkit-outer-spin-button,
input[type=number]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* input[type=number] {
  -moz-appearance: textfield;
} */

html {
  height: 100%;
  margin: 0;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}