body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f4f6f8;
    color: #2c2c2c;
    line-height: 1.6;
}

.hero {
    background: linear-gradient(
        135deg,
        #243b55 0%,
        #2f4f6f 40%,
        #4b3f72 100%
    );
    color: white;
    padding: 60px 60px 50px 60px;
}

.hero h1 {
    font-size: 42px;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: #f4b183;
}

.tagline {
    font-size: 16px;
    margin-top: 10px;
}

section {
    background-color: white;
    margin: 30px 40px;
    padding: 30px;
    border-left: 5px solid #2f4f6f;
}

section h2 {
    color: #2f4f6f;
    margin-top: 0;
}

.accent {
    border-left-color: #f4b183;
}

.accent-light {
    border-left-color: #5b4b8a;
}

.card {
    background-color: #fafafa;
    padding: 15px;
    margin: 15px 0;
    border-left: 4px solid #f4b183;
}

.card h3 {
    margin-top: 0;
    color: #5b4b8a;
}

ul {
    padding-left: 20px;
}

footer {
    background-color: #2f4f6f;
    color: white;
    text-align: center;
    padding: 30px;
}

.about {
    background-color: hwb(0 100% 0%);
}

.expertise {
    background: linear-gradient(135deg, #2f4f6f, #4b3f72);
    color: white;
    border-left: none;
    border-radius: 14px;
}

.expertise h2 {
    color: white;
}

.expertise .card {
    background: rgba(255,255,255,0.08);
    border-left: 3px solid #f4b183;
}

.expertise .card h3 {
    color: #f4b183;
}

.values {
    background-color: #fff7ef;
}

.why {
    background-color: #f4f1fa;
}

.mission-vision {
    background-color: #eef3f7;
}
.top-bar {
    background-color: rgba(15, 25, 40, 0.95); /* прозрачность */
    color: #dfe6ef;
    font-size: 12px;
    letter-spacing: 0.5px;
    padding: 8px 60px;

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

    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.main-title {
    font-size: 34px;
    font-weight: 300;
    letter-spacing: 1.5px;
    line-height: 1.4;
}

.brand {
    font-weight: 800;
    color: #ffffff;
    letter-spacing: 2px;
}

.divider {
    color: #f4b183;
    margin: 0 10px;
}

.contact-btn {
    display: inline-block;
    margin-top: 30px;
    padding: 12px 28px;
    background-color: #f4b183;
    color: #1f2f45;
    text-decoration: none;
    font-weight: 600;
    border-radius: 30px;
    transition: all 0.3s ease;
}

.contact-btn:hover {
    background-color: #ffffff;
    color: #2f4f6f;
}

@media (max-width: 768px) {

    .top-bar {
        flex-direction: column;
        gap: 5px;
        text-align: center;
        padding: 10px 20px;
    }

    .hero {
        padding: 70px 20px;
    }

    .main-title {
        font-size: 22px;
    }

    section {
        margin: 20px;
        padding: 20px;
    }

    .contact-btn {
        padding: 10px 20px;
        font-size: 14px;
    }

}