/* Base styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f4f9;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    transition: background-color 0.5s ease; /* Smooth background color change */
}

/* Main card */
.container {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    text-align: center;
    max-width: 500px;
    width: 90%;
}

h1 {
    margin-top: 0;
    color: #2c3e50;
}

/* Button Layout */
.mood-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 25px;
}

button {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, background-color 0.2s;
}

button:hover {
    background-color: #2980b9;
    transform: scale(1.05); /* Slight pop-out effect on hover */
}

/* Results Area */
.results-container {
    text-align: left;
}

.song-card {
    background: #f8f9fa;
    border-left: 5px solid #3498db;
    padding: 12px 15px;
    margin-bottom: 12px;
    border-radius: 4px;
    animation: fadeIn 0.3s ease-in-out;
}

.song-title {
    font-weight: bold;
    font-size: 1.1rem;
    margin: 0 0 5px 0;
}

.song-artist {
    margin: 0;
    font-size: 0.9rem;
    color: #666;
}

/* Simple animation for songs appearing */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}