body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    font-size: 16px;
    background: white;
    color: #333;
    padding: 0 15px;
    max-width: 1080px;
    margin: 0 auto;
}

code {
    font-weight: bold;
}

.main-header {
    padding: 20px 0;
    border-bottom: 1px solid #ccc;
    margin-bottom: 20px;
}

.main-footer {
    padding: 40px 0;
    border-top: 1px solid #ccc;
    margin-top: 80px;
}

.main-header .desktop-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: bold;
}

.logo a,
.logo a:visited {
    color: #333;
    text-decoration: none;
}

.main-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-main-nav,
.main-nav .menu-toggle {
    display: none;
}

.main-nav ul {
    display: flex;
}

.main-nav ul li {
    margin: 0 10px;
}

.mobile-main-nav ul.main-menu {
    margin: 15px 0 0;
}

.mobile-main-nav ul li a {
    display: block;
    padding: 15px 0;
    text-align: right;
}

.form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 7px;
}
.form-group label {
    font-weight: bold;
}

input[type="text"],
input[type="email"],
input[type="password"],
textarea {
    padding: 7px;
    border: 1px solid #ccc;
    border-radius: 5px;
    color: #333;
}

input[type="submit"],
button[type="submit"] {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    background: #3385ff;
    color: white;
    font-weight: bold;
    cursor: pointer;
}

.block {
    margin-bottom: 40px;
}

.upload-template-block {
    padding-bottom: 40px;
    border-bottom: 1px solid #ccc;
}

.upload-template-block .info {
    margin-bottom: 40px;
}

.cta-block {
    padding: 20px;
    background-color: #e6f3ff;
}

.feedback-form .phone {
    display: none;
}

@media (max-width: 768px) {
    h1 {
        font-size: 1.8em;
    }
    h2 {
        font-size: 1.5em;
    }
    h3 {
        font-size: 1.2em;
    }
    .main-nav ul {
        display: none;
    }
    .main-nav .menu-toggle {
        display: block;
    }
    .menu-open .mobile-main-nav {
        display: block;
    }
}


@media (prefers-color-scheme: dark) {
    body {
        background: #333;
        color: #ccc;
    }
    a {
        color: #3385ff;
    }
    a:visited {
        color: #944dff;

    }

    .logo a,
    .logo a:visited {
        color: #ccc;
    }
    .cta-block {
       background-color: #003566;
    }

    input[type="text"],
    input[type="email"],
    input[type="password"],
    textarea {
        background-color: #ececec;
    }
}