body {
    background: #f5f7fb;
    font-family: 'Open Sans', sans-serif;
}

.cbt-start-wrapper {
    padding-top: 40px;
    padding-bottom: 40px;
}

.cbt-brand {
    display: flex;
    align-items: center;
    margin-bottom: 35px;
}

.cbt-brand img {
    width: 65px;
    margin-right: 15px;
}

.cbt-brand h2 {
    font-size: 34px;
    font-weight: 700;
    margin: 0;
    color: #0f2b66;
}

.cbt-brand p {
    margin: 0;
    color: #444;
    font-size: 18px;
}

.cbt-card-left,
.cbt-guide-card,
.cbt-subject-card {
    background: #fff;
    border-radius: 24px;
    padding: 30px;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.05);
}

.cbt-card-left {
    height: 100%;
}

.cbt-illustration {
    text-align: center;
}

.cbt-illustration img {
    width: 100%;
    max-width: 340px;
}

.cbt-title {
    text-align: center;
    margin-top: 10px;
    margin-bottom: 30px;
}

.cbt-title h1 {
    font-size: 48px;
    font-weight: 700;
    color: #0f2b66;
}

.cbt-title p {
    color: #666;
    font-size: 18px;
}

.form-group {
    margin-bottom: 22px;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 8px;
    color: #0f2b66;
}

.form-control {
    height: 54px;
    border-radius: 12px;
    border: 1px solid #dfe6f2;
    padding-left: 18px;
    box-shadow: none !important;
}

.btn-start-cbt {
    width: 100%;
    border: 0;
    height: 58px;
    border-radius: 14px;
    background: linear-gradient(90deg,
            #0f5fe0,
            #0047c2);
    color: #fff;
    font-size: 22px;
    font-weight: 600;
    margin-top: 10px;
    transition: .3s;
    cursor: pointer;
}
.btn-start-cbt a {
    color: #fff;
}

.btn-start-cbt:hover {
    opacity: .9;
}

.btn-start-cbt i {
    margin-right: 8px;
}

.cbt-note {
    text-align: center;
    margin-top: 22px;
    color: #6b7280;
    font-size: 15px;
}

.cbt-note i {
    color: #0f5fe0;
    margin-right: 5px;
}

.cbt-subject-card {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
    border: 1px solid #d9e7ff;
}

.cbt-subject-icon {
    width: 90px;
    height: 90px;
    border-radius: 22px;
    background: #eef4ff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 25px;
}

.cbt-subject-icon i {
    font-size: 42px;
    color: #0f5fe0;
}

.subject-row {
    display: flex;
    margin-bottom: 14px;
}

.subject-row span {
    width: 180px;
    font-weight: 700;
    color: #0f2b66;
}

.subject-row strong {
    font-size: 17px;
    color: #222;
}

.guide-title {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
}

.guide-title i {
    font-size: 26px;
    color: #0f5fe0;
    margin-right: 15px;
}

.guide-title h3 {
    margin: 0;
    font-size: 26px;
    font-weight: 700;
    color: #0f2b66;
}

.cbt-guide-card ol {
    padding-left: 28px;
    margin: 0;
}

.cbt-guide-card li {
    margin-bottom: 14px;
    line-height: 1.9;
    color: #23304d;
    font-size: 14px;
}

.cbt-footer {
    text-align: center;
    margin-top: 35px;
    color: #6b7280;
    font-size: 16px;
}

@media(max-width: 991px) {

    .cbt-brand {
        flex-direction: column;
        text-align: center;
    }

    .cbt-brand img {
        margin-right: 0;
        margin-bottom: 15px;
    }

    .cbt-brand h2 {
        font-size: 26px;
    }

    .cbt-title h1 {
        font-size: 36px;
    }

    .guide-title h3 {
        font-size: 26px;
    }

    .cbt-guide-card li {
        font-size: 14px;
    }

    .subject-row {
        flex-direction: column;
    }

    .subject-row span {
        width: 100%;
        margin-bottom: 4px;
    }

}