body, html {
    height: 100%;
    width: 100%;
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background-image: url('../start.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.main-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    box-sizing: border-box;
}

.header {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 30px;
    background-color: var(--white);
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 1000px;
}

.logo-container {
    text-align: center;
    margin-bottom: 10px;
}

.logo-container img {
    width: 150px;
    height: auto;
}

h1 {
    color: var(--primary);
    font-weight: bold;
    text-align: center;
    margin: 10px 0;
    font-size: 28px;
}

.content-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
    width: 100%;
    max-width: 1000px;
}

.viewer-box {
    background-color: var(--white);
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    padding: 30px;
    transition: transform 0.3s ease;
}

.viewer-box:hover {
    transform: translateY(-5px);
}

h2 {
    color: var(--primary);
    font-size: 22px;
    margin-top: 0;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

h2 i {
    color: var(--secondary-1);
}

p {
    color: var(--gray);
    line-height: 1.6;
    margin-bottom: 20px;
}

.button-container {
    display: flex;
    justify-content: center;
}

.viewer-button {
    background-color: var(--primary);
    color: var(--white);
    padding: 12px 25px;
    border-radius: 10px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: bold;
    transition: background-color 0.3s, transform 0.3s;
}

.viewer-button:hover {
    background-color: var(--secondary-2);
    transform: scale(1.05);
}

.viewer-button i {
    color: var(--secondary-1);
}

.viewer-button:hover i {
    color: var(--primary-900);
  }

.footer {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 1000px;
}

.back-button {
    background-color: var(--primary);
    color: var(--white);
    padding: 12px 25px;
    border-radius: 10px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: bold;
    margin-bottom: 20px;
    transition: background-color 0.3s;
}

.back-button:hover {
    background-color: var(--white);
    color: var(--primary);
}

.back-button i {
    color: var(--secondary-1);
}

.back-button:hover i {
    color: var(--primary);
  }

.footer-image {
    text-align: center;
    margin-top: 20px;
}

.footer-image img {
    max-width: 250px;
    height: auto;
}

/* Responsive design */
@media (min-width: 768px) {
    .content-container {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .viewer-box {
        flex: 1;
        min-width: 300px;
    }
}