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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: #fafafa;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.container {
    background: #ffffff;
    max-width: 600px;
    width: 100%;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.05);
    text-align: center;
}

header h1 {
    font-size: 28px;
    font-weight: 700;
    color: #111;
    margin-bottom: 8px;
}

header p {
    font-size: 15px;
    color: #666;
    margin-bottom: 30px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 25px;
}

.input-wrapper {
    position: relative;
    flex-grow: 1;
    display: flex;
}

input[type="url"] {
    width: 100%;
    padding: 15px;
    padding-right: 40px;
    font-size: 16px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    outline: none;
    transition: border-color 0.2s;
    font-family: 'Inter', sans-serif;
}

input[type="url"]:focus {
    border-color: #007aff;
}

#clear-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: #999;
    font-size: 24px;
    font-weight: 500;
    padding: 0;
    width: auto;
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s;
}

#clear-btn:hover {
    color: #333;
    background: transparent;
    transform: translateY(-50%); /* prevent global button active scale */
}

#clear-btn:active {
    transform: translateY(-50%) scale(0.9);
}

button {
    background-color: #007aff;
    color: white;
    font-size: 16px;
    font-weight: 600;
    padding: 15px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    font-family: 'Inter', sans-serif;
}

button:hover {
    background-color: #0062cc;
}

button:active {
    transform: scale(0.98);
}

button:disabled {
    background-color: #a0cbf7;
    cursor: not-allowed;
    transform: none;
}

.hidden {
    display: none !important;
}

/* Loading Spinner */
#loading {
    margin: 20px 0;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #007aff;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 10px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

#loading p {
    font-size: 14px;
    color: #666;
}

.error p {
    color: #d32f2f;
    font-size: 14px;
    margin-bottom: 20px;
    background-color: #ffebee;
    padding: 10px;
    border-radius: 8px;
}

/* Result Area */
#result-container {
    margin-top: 30px;
    text-align: left;
    border-top: 1px solid #f0f0f0;
    padding-top: 25px;
}

#result-container h2 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #111;
}

.media-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
}

.media-card {
    background: #f9f9f9;
    border-radius: 12px;
    padding: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 1px solid #efefef;
}

.yt-card {
    grid-column: 1 / -1;
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
}

.media-preview {
    max-width: 100%;
    max-height: 300px;
    border-radius: 8px;
    margin-bottom: 15px;
    object-fit: contain;
    background: #eee;
}

.download-link {
    display: inline-block;
    background-color: #111;
    color: #fff;
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    transition: background-color 0.2s;
    width: 100%;
    text-align: center;
}

.download-link:hover {
    background-color: #333;
}

footer {
    margin-top: 40px;
    font-size: 13px;
    color: #999;
}

@media (min-width: 480px) {
    .input-group {
        flex-direction: row;
    }
    button {
        width: 120px;
    }
    .media-grid {
        grid-template-columns: 1fr 1fr;
    }
}