/* ===========================
   Estilos generales
=========================== */
body {
    font-family: "Poppins", sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f6f5;
    color: #333;
    line-height: 1.6;
}

/* ===========================
   Encabezado
=========================== */
header {
    background: linear-gradient(135deg, #0b8457, #3fc060);
    color: white;
    text-align: center;
    padding: 60px 20px;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

header p {
    font-size: 1.2em;
    font-weight: 300;
}

/* ===========================
   Secciones principales
=========================== */
section {
    max-width: 1000px;
    margin: 40px auto;
    padding: 20px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

/* Centrar todos los párrafos */
p {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

/* ===========================
   Botones y enlaces
=========================== */
button, .btn {
    background-color: #0b8457;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1em;
    cursor: pointer;
    transition: background 0.3s ease;
}

button:hover, .btn:hover {
    background-color: #097346;
}

/* ===========================
   Calculadoras
=========================== */
.calculadora {
    background-color: #f9fdfb;
    border: 1px solid #cde9d7;
    padding: 20px;
    border-radius: 10px;
    margin-top: 20px;
}

.calculadora h3 {
    color: #0b8457;
    text-align: center;
}

input, select {
    width: 100%;
    padding: 10px;
    margin: 8px 0;
    border: 1px solid #ccc;
    border-radius: 6px;
}

.resultado {
    background-color: #e8f7ee;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    font-weight: bold;
    color: #0b8457;
}

/* ===========================
   Pie de página
=========================== */
footer {
    background-color: #0b8457;
    color: white;
    text-align: center;
    padding: 20px;
    font-size: 0.9em;
    margin-top: 40px;
}