@import url('https://fonts.googleapis.com/css2?family=DM+Sans:opsz,wght@9..40,100..1000&display=swap');

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

body {
    font-family: "DM Sans", Arial, sans-serif;
    background-color: #1A1A2E;
    line-height: 1.6;
    color: #e0e0e0;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-height: 100vh;
}

a {
    color: #e0e0e0;
    transition: .2s;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
}

a:hover {
    color: #00bbd6;
}

header, .content, footer {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    padding: 10px 15px;
    background-color: #1A1A2E;
    border-radius: 5px;
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
}

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

footer {
    display: flex;
    justify-content: center;
}

.content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.logo {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 5px;
}

.logo img {
    height: 50px;
}

.logo h1 {
    margin: 0;
    font-size: 18px;
    color: #00bbd6;
}

.menu_list {
    list-style: none;
    margin: 0;
}

.menu_item {
    margin: 0;
}

.app_stores_buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 30px;
    flex: 1;
    margin: 10px 0;
}

.app_store_button {
    display: flex;
    justify-content: center;
    align-items: center;
}

.app_store_img {
    width: 200px;
}

.check-mark {
    flex-basis: 15px;
    margin-right: 5px;
    padding-top: 5px;
}

h1, h2, h3, h4 {
    color: #e0e0e0;
    line-height: 1.2;
}

h1 {
    font-size: 1.8em;
    margin-bottom: 10px;
}

h2 {
    font-size: 1.4em;
    margin: 20px 0 10px;
}

h3 {
    font-size: 1.2em;
    margin: 15px 0 5px;
}

h4 {
    font-size: 1.1em;
    margin: 10px 0 5px;
}

p {
    margin: 10px 0;
}

ul {
    margin: 10px 0;
}

.main p,
.main ul {
    font-size: 18px;
    font-weight: 500;
}

li.features_item {
    display: flex;
    align-items: flex-start;
    margin: 5px 0;
}

li span {
    flex: 1;
}

@media (min-width: 757px) {
    .menu_list {
        display: flex;
        gap: 15px;
    }
}

@media (min-width: 979px) {
    body {
        gap: 15px;
        padding: 15px;
    }

    header, .content, footer {
        padding: 15px 30px;
    }

    h1 {
        font-size: 2em;
    }

    h2 {
        font-size: 1.5em;
    }

    h3 {
        font-size: 1.25em;
    }

    .app_stores_buttons {
        flex-direction: row;
    }
}