* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #0b2420;
    color: #e8f0ed;
    line-height: 1.7;
}

.hero {
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 20px;

    background:
        radial-gradient(circle at top, #164d42, #0b2420 60%);
}

.logo {
    width: 260px;
    height: 260px;
    object-fit: contain;
    margin-bottom: 20px;
}

h1 {
    font-size: 56px;
    margin: 10px 0;
}

h2 {
    font-size: 36px;
    margin-bottom: 25px;
}

h3 {
    font-size: 22px;
}

.subtitle {
    color: #9bc8ba;
    font-size: 22px;
    margin: 5px 0;
}

.intro {
    max-width: 650px;
    color: #c5d8d2;
    font-size: 18px;
}

.button {
    display: inline-block;
    margin-top: 25px;
    padding: 13px 25px;

    background: #e8f0ed;
    color: #0b2420;

    text-decoration: none;
    border-radius: 10px;
    font-weight: bold;

    transition: 0.25s;
}

.button:hover {
    transform: translateY(-3px);
}

main {
    max-width: 950px;
    margin: auto;
}

.section {
    padding: 90px 30px;
    text-align: center;
    border-bottom: 1px solid #21473f;
}

.section p {
    max-width: 750px;
    margin: 15px auto;
    color: #c5d8d2;
}

.content-image {
    width: 100%;
    max-width: 700px;
    max-height: 450px;
    object-fit: cover;

    display: block;
    margin: 30px auto;

    border-radius: 18px;

    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.35);
}

.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.card {
    padding: 30px 20px;
    background: #12352f;
    border: 1px solid #24544a;
    border-radius: 18px;

    transition: 0.25s;
}

.card:hover {
    transform: translateY(-8px);
    background: #174239;
}

.card p {
    font-size: 15px;
}

.card-icon {
    font-size: 45px;
}

.quote {
    margin-top: 40px !important;
    font-size: 22px;
    font-style: italic;
    color: #9bc8ba !important;
}

.contact a {
    color: #9bc8ba;
    text-decoration: none;
}

.contact a:hover {
    text-decoration: underline;
}

footer {
    text-align: center;
    padding: 35px 20px;
    color: #789a91;
}


/* Телефон */

@media (max-width: 700px) {

    h1 {
        font-size: 38px;
    }

    h2 {
        font-size: 28px;
    }

    .subtitle {
        font-size: 18px;
    }

    .logo {
        width: 200px;
        height: 200px;
    }

    .cards {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 60px 20px;
    }

}