/* Reset and Base Styles */
body {
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
    background-color: #f4f7fc;
}

.header {
    background-color: #333;
    color: #ffffff;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.header h1 {
    font-size: 2.5em;
    margin: 0;
    font-weight: bold;
    color: #f0f8ff;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.header h3 {
    font-size: 1.3em;
    font-weight: 300;
    color: #dcdcdc;
    margin-top: 10px;
}

.header form {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 20px;
}

.note-heading-input, .note-content-input, select {
    width: 90%;
    max-width: 500px;
    margin: 10px 0;
    padding: 10px;
    font-size: 16px;
    border-radius: 5px;
    border: 1px solid #ccc;
    box-sizing: border-box;
}

.note-heading-input {
    height: 40px;
    font-weight: bold;
}

.note-content-input {
    resize: vertical;
}

select {
    padding: 10px 15px;
    font-size: 16px;
    font-weight: bold;
    color: white;
    background-color: #556cd6;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: background-color 0.3s ease, transform 0.2s ease;
    appearance: none;
    width: 50%;
    max-width: 200px;
}

select:hover {
    background-color: #4050b5;
}

select:focus {
    outline: none;
    background-color: #31429d;
}

.add-button {
    padding: 10px 20px;
    font-size: 16px;
    font-weight: bold;
    color: white;
    background-color: #28a745;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    margin-top: 10px;
}

.add-button:hover {
    background-color: #218838;
    transform: translateY(-2px);
}

.add-button:active {
    background-color: #1e7e34;
    transform: translateY(0);
}

.note-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    max-width: 1600px;
    margin: 20px auto;
    padding: 20px;
    box-sizing: border-box;
}

.note {
    width: 100%;
    max-width: 300px;
    background-color: #fff;
    border: 1px solid #ccc;
    margin: 10px;
    padding: 15px;
    overflow: auto;
    box-sizing: border-box;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    font-size: 16px;
    color: #333;
    text-align: left;
    transition: transform 0.2s ease;
    position: relative;
}

.note:hover {
    transform: scale(1.02);
}

.note h2.note-heading {
    margin-top: 0;
    font-size: 1.5em;
    color: #333;
}

.note p.note-content {
    margin: 10px 0 20px 0;
    white-space: pre-wrap;
}

/* Color Variations */
.yellow {
    background-color: #feff9c;
}

.lightblue {
    background-color: #add8e6;
}

.pink {
    background-color: #ffb6c1;
}

.lightgreen {
    background-color: #98fb98;
}

.orange {
    background-color: #ffcc99;
}

.purple {
    background-color: #d1c4e9;
}

.gray {
    background-color: #e0e0e0;
}

/* Delete Button Styles */
.delete-button {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: bold;
    color: white;
    background-color: #dc3545;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    position: absolute;
    bottom: 15px;
    right: 15px;
}

.delete-button:hover {
    background-color: #c82333;
    transform: translateY(-2px);
}

.delete-button:active {
    background-color: #bd2130;
    transform: translateY(0);
}

/* Responsive Design */
@media (min-width: 600px) {
    .note {
        width: calc(50% - 40px);
    }
}

@media (min-width: 900px) {
    .note {
        width: calc(33.333% - 40px);
    }
}

@media (min-width: 1200px) {
    .note {
        width: calc(25% - 40px);
    }
}