/* General Body and Typography */
body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f7f6; /* Light background */
    color: #333;
    line-height: 1.6;
}

/* Header Styling */
header {
    background-color: #2c3e50; /* Dark blue/grey */
    color: #ffffff;
    padding: 40px 20px;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

header h1 {
    margin-top: 0;
    font-size: 2.5em;
    margin-bottom: 10px;
}

header p {
    font-size: 1.1em;
    opacity: 0.9;
}

/* Search Bar Styling */
.search-container {
    margin-top: 30px;
}

#searchInput {
    width: 80%;
    max-width: 500px;
    padding: 12px 20px;
    border: none;
    border-radius: 25px;
    font-size: 1em;
    outline: none;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

#searchInput:focus {
    box-shadow: 0 0 0 3px rgba(85, 172, 238, 0.5), inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Main Content and Acronym List */
main {
    padding: 30px 20px;
    max-width: 1000px;
    margin: 20px auto;
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.acronym-list-container {
    max-height: 70vh; /* Limit height for scrollability */
    overflow-y: auto; /* Enable vertical scrolling */
    padding-right: 15px; /* Space for scrollbar */
}

/* Custom Scrollbar for Webkit Browsers */
.acronym-list-container::-webkit-scrollbar {
    width: 10px;
}

.acronym-list-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

.acronym-list-container::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 10px;
}

.acronym-list-container::-webkit-scrollbar-thumb:hover {
    background: #555;
}


#acronymList {
    list-style: none;
    padding: 0;
    margin: 0;
}

#acronymList li {
    background-color: #eaf1f7; /* Light blue/grey for list items */
    margin-bottom: 10px;
    padding: 15px 20px;
    border-radius: 5px;
    border-left: 5px solid #55acee; /* Accent color */
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease-in-out;
}

#acronymList li:hover {
    transform: translateX(5px);
}

#acronymList .acronym-term {
    font-weight: 700;
    font-size: 1.2em;
    color: #2c3e50; /* Darker text for acronym */
    margin-bottom: 5px;
}

#acronymList .acronym-definition {
    font-size: 1em;
    color: #555;
}

/* Footer Styling */
footer {
    text-align: center;
    padding: 20px;
    margin-top: 30px;
    background-color: #34495e; /* Slightly darker than header for contrast */
    color: #ecf0f1;
    font-size: 0.9em;
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.05);
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }

    header p {
        font-size: 1em;
    }

    #searchInput {
        width: 90%;
        padding: 10px 15px;
    }

    main {
        padding: 20px 15px;
        margin: 15px auto;
    }

    #acronymList li {
        padding: 12px 15px;
    }

    #acronymList .acronym-term {
        font-size: 1.1em;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.8em;
    }

    header p {
        font-size: 0.9em;
    }

    #searchInput {
        font-size: 0.9em;
    }

    #acronymList .acronym-definition {
        font-size: 0.9em;
    }
}