.blog {
    padding-bottom: 32px;
    --band: min(3.5%, 80px);
    --b1: calc(1 * var(--band));
    --b2: calc(2 * var(--band));
    --b3: calc(3 * var(--band));
    --b4: calc(4 * var(--band));
    background: linear-gradient(120deg,
            #b6b6b6 0 var(--b1),
            #cecece var(--b1) var(--b2),
            #ebebeb var(--b2) var(--b3),
            #f8f8f8 var(--b3) var(--b4),
            #f8f8f8 var(--b4) calc(100% - var(--b4)),
            #f8f8f8 calc(100% - var(--b4)) calc(100% - var(--b3)),
            #ebebeb calc(100% - var(--b3)) calc(100% - var(--b2)),
            #cecece calc(100% - var(--b2)) calc(100% - var(--b1)),
            #b6b6b6 calc(100% - var(--b1)) 100%);
}

.blog .panel {
    cursor: pointer;
    height: 100%;
    margin-bottom: 0;
    border-radius: 10px;
    border: 1px solid #bbb;
    box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.blog .panel-heading {
    /* font-weight: bold; */
    padding-bottom: 0px;
}

.blog .panel-body {
    font-weight: bold;
    padding: 5px 15px;
}

.blog .panel-footer {
    background-color: #fff;
    border-bottom-right-radius: 10px;
    border-bottom-left-radius: 10px;
    text-align: center;
}

.hero {
    padding-top: 80px;
}

.hero-badge {
    display: inline-block;
    padding: 10px 5px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .02em;
}

.hero h1 {
    font-size: 58px;
    line-height: 1.05;
    font-weight: 800;
    margin-bottom: 28px;
}

.hero-subtitle {
    font-size: 21px;
    line-height: 1.7;
    opacity: .9;
    max-width: 720px;
    margin-bottom: 36px;
}

.hero-actions .btn {
    margin-right: 14px;
}

.hero-comic {
    width: 100%;
    max-width: 820px;
}

.hero-screenshot {
    width: 100%;
    max-width: 820px;
    border-radius: 18px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, .45);
}

.principles {
    padding-top: 80px;
}

.principles-container {
    max-width: 1100px;
}

.principles-box {
    padding: 60px;
    border-radius: 28px;
    background:
        linear-gradient(180deg,
            rgba(255, 255, 255, .04),
            rgba(255, 255, 255, .02));
    border:
        1px solid rgba(255, 255, 255, .06);
    box-shadow:
        0 10px 40px rgba(0, 0, 0, .08);
}

.principles-label {
    margin-bottom: 18px;
    color: #7f8cff;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .14em;
    text-align: center;
}

.principles h2 {
    font-size: 40px;
    line-height: 1.25;
    font-weight: 800;
    margin-bottom: 24px;
    margin-top: 0;
}

.principles h2 img {
    height: 60px;
    margin-right: 12px;
    filter: drop-shadow(0px 0px 4px rgba(39, 144, 219, 0.5));
}

.principles-lead {
    font-size: 21px;
    line-height: 1.8;
    opacity: .82;
    max-width: 820px;
    text-align: center;
}

.principles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.principle-item {
    padding: 5px;
    border-radius: 18px;
    background: rgba(255, 255, 255, .025);
    border: 1px solid rgba(255, 255, 255, .05);
}

.principle-item h4 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 14px;
}

.principle-item p {
    font-size: 16px;
    line-height: 1.7;
    opacity: .74;
}

.feature-block {
    padding: 120px 0;
}

.feature-block-soft {
    background:
        linear-gradient(180deg,
            rgba(255, 255, 255, .015),
            transparent);
}

.feature-block h2 {

    font-size: 42px;
    line-height: 1.2;
    font-weight: 800;

    margin-bottom: 24px;
}

.feature-block p {

    font-size: 20px;
    line-height: 1.8;

    opacity: .82;
}

.feature-list {

    margin-top: 32px;
    margin-bottom: 36px;

    padding-left: 20px;
}

.feature-list li {

    margin-bottom: 14px;

    font-size: 18px;
    line-height: 1.7;
}