* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h1 {
    text-align: center;
    color: #333;
    margin-bottom: 2rem;
}

.drop-zone {
    max-width: 100%;
    height: 200px;
    padding: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    cursor: pointer;
    border: 4px dashed #06479b;
    border-radius: 10px;
    margin-bottom: 1rem;
}

.drop-zone--over {
    border-style: solid;
}

.drop-zone__input {
    display: none;
}

.drop-zone__prompt {
    color: #06479b;
    font-size: 1.2rem;
}

.submit-btn {
    width: 100%;
    padding: 1rem;
    background-color: #06479b;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: background-color 0.3s ease;
}

.submit-btn:hover {
    background-color: #053a7d;
}

.result-container {
    margin-top: 2rem;
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.link-container {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

#shortUrl {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.copy-btn {
    padding: 0.5rem 1rem;
    background-color: #06479b;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.copy-btn:hover {
    background-color: #053a7d;
}