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

body {
    font-family: 'Roboto', sans-serif;
    color: #333;
    background: linear-gradient(135deg, #f44336, #e57373);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

header {
    text-align: center;
    color: #fff;
    padding: 2rem;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

header p {
    font-size: 1.2rem;
    font-weight: 500;
}

main {
    width: 90%;
    max-width: 800px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    margin: 2rem 0;
}

section {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid #eee;
}

section:last-child {
    border-bottom: none;
}

h2 {
    font-size: 1.8rem;
    color: #f44336;
    margin-bottom: 1rem;
}

.input-group {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

#videoUrl {
    flex: 1;
    padding: 0.8rem;
    font-size: 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
}

#downloadBtn {
    padding: 0.8rem 1.2rem;
    font-size: 1rem;
    color: #fff;
    background-color: #f44336;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

#downloadBtn:hover {
    background-color: #d32f2f;
}

ul, ol {
    padding-left: 20px;
    margin: 1rem 0;
}

ul li, ol li {
    margin-bottom: 0.5rem;
}

.faq-item h3 {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
    color: #333;
}

footer {
    text-align: center;
    padding: 1.5rem;
    color: #fff;
    background: #333;
    width: 100%;
}