body {
    background: #000000;
}

.main-container {
    display: flex;
    margin: 3em auto 3em;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    align-items: flex-start;
    gap: 60px;
    padding: 20px;
    max-width: 1200px;
}

.page-bg {
  position: absolute;
  top: 100px;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  z-index: 1;
}

.calculator-container, .notes-container {
    padding: 20px;
    background: #ffffffda;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    flex: 1;
    min-width: 300px;
    z-index: 2;
}

.date-display p, #results p {
    line-height: 2.2;
    font-size: 24px;
}

.main-container h1 {
    color: #000000;
    font-size: 32px;
    font-weight: 600;
    text-align: center;
    margin: 0;
}

.main-container h2 {
    color: #000000;
    text-align: center;
    font-size: 22px;
    padding-bottom: 0px;
    margin: 10px 0px;
}


.main-container h4 {
    color: #000000;
    font-size: 18px;
    text-align: center;
    margin: 15px 0;
}

.main-container p{
    color: #000000;
    margin: 0px;
}

p, ul {
    line-height: 1.6;
}

ul {
    padding-left: 20px;
    margin: 0px;
}

label {
    font-weight: bold;
    display: block;
    margin-bottom: 8px;
}

input[type="datetime-local"], input[type="number"] {
    padding: 10px;
    width: calc(100% - 22px);
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
}

button {
    padding: 12px 20px;
    background: #2196F3;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    width: 100%;
    font-size: 16px;
    font-weight: bold;
    transition: background-color 0.3s;
}

button:hover {
    background: #1976D2;
}

hr {
    border: 0;
    border-top: 1px solid #919191;
    margin: 10px 0;
}

#convert-instruction {
    font-size: 14px;
    color: #000000;
    text-align: center;
    margin-top: -15px;
    margin-bottom: 10px;
}

.date-display p, #results p {
    font-size: 16px;
}