:root {
    --about-primary: #005eff;
    --about-primary-dark: #0044bf;
    --about-text: #111827;
    --about-muted: #5f6b7a;
    --about-border: #e2e8f0;
    --about-soft: #f6f8fc;
    --about-surface: #ffffff;
    --about-radius: 14px;
    --about-shadow: 0 10px 28px rgba(15, 23, 42, 0.06);
}

main {
    max-width: 1120px;
    margin: 92px auto 110px;
    padding: 0 24px;
}

.about-intro {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 28px;
}

.about-intro__content,
.about-intro__summary,
.about-section,
.about-fact,
.about-contact {
    border: 1px solid var(--about-border);
    border-radius: var(--about-radius);
    background: var(--about-surface);
    box-shadow: var(--about-shadow);
}

.about-intro__content {
    width: 100%;
    box-sizing: border-box;
    padding: clamp(28px, 4vw, 46px);
}

.about-intro h1 {
    max-width: 780px;
    margin: 0 0 18px;
    color: var(--about-text);
    font-size: clamp(2.1rem, 4.2vw, 3.5rem);
    line-height: 1.08;
    font-weight: 800;
}

.about-intro p,
.about-text p,
.about-section__head p,
.about-fact p,
.about-principles p,
.about-contact p {
    margin: 0;
    color: var(--about-muted);
    font-size: 1.05rem;
    line-height: 1.75;
}

.about-intro__summary {
    display: flex;
    gap: 1px;
    overflow: hidden;
    background: var(--about-border);
}

.about-intro__summary div {
    display: flex;
    flex: 1 1 0;
    flex-direction: column;
    gap: 8px;
    justify-content: center;
    background: var(--about-soft);
    padding: 24px;
}

.about-intro__summary span {
    color: var(--about-muted);
    font-size: 0.88rem;
    font-weight: 700;
    text-transform: uppercase;
}

.about-intro__summary strong {
    color: var(--about-primary);
    font-size: 1.35rem;
    line-height: 1.2;
}

.about-section {
    padding: clamp(26px, 4vw, 40px);
    margin-bottom: 28px;
}

.about-section h2,
.about-contact h2 {
    margin: 0 0 16px;
    color: var(--about-text);
    font-size: clamp(1.55rem, 2.8vw, 2.25rem);
    line-height: 1.18;
}

.about-text {
    display: grid;
    gap: 16px;
    max-width: 880px;
}

.about-facts {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-bottom: 28px;
}

.about-fact {
    padding: 24px;
}

.about-fact span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: rgba(0, 94, 255, 0.1);
    color: var(--about-primary);
    font-weight: 800;
    margin-bottom: 18px;
}

.about-fact h3,
.about-principles h3 {
    margin: 0 0 10px;
    color: var(--about-text);
    font-size: 1.12rem;
    line-height: 1.3;
}

.about-section__head {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(280px, 1fr);
    gap: 24px;
    align-items: end;
    margin-bottom: 24px;
}

.about-services {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}

.about-service {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
    border: 1px solid var(--about-border);
    border-radius: 12px;
    background: #fbfdff;
    padding: 18px;
    color: var(--about-text);
    font-weight: 700;
}

.about-service i {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    border-radius: 10px;
    background: rgba(0, 94, 255, 0.1);
    color: var(--about-primary);
}

.about-principles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.about-principles div {
    border-left: 3px solid var(--about-primary);
    background: var(--about-soft);
    border-radius: 0 12px 12px 0;
    padding: 18px 20px;
}

.about-contact {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    padding: clamp(26px, 4vw, 40px);
}

.about-contact__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 12px;
    flex: 0 0 auto;
}

.about-phone,
.about-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    border-radius: 10px;
    padding: 0 18px;
    font-weight: 800;
    text-decoration: none;
}

.about-phone {
    border: 1px solid var(--about-border);
    color: var(--about-text);
}

.about-btn {
    background: var(--about-primary);
    color: #fff;
    transition: background 0.2s ease, transform 0.2s ease;
}

.about-btn:hover {
    background: var(--about-primary-dark);
    transform: translateY(-1px);
}

@media (max-width: 980px) {
    .about-services,
    .about-principles {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 780px) {
    main {
        margin-top: 76px;
        padding: 0 18px;
    }

    .about-section__head,
    .about-facts,
    .about-services,
    .about-principles {
        grid-template-columns: 1fr;
    }

    .about-contact {
        align-items: stretch;
        flex-direction: column;
    }

    .about-contact__actions {
        justify-content: flex-start;
    }

    .about-intro__summary {
        flex-direction: column;
    }
}

@media (max-width: 520px) {
    main {
        padding: 0 14px;
    }

    .about-intro__content,
    .about-intro__summary div,
    .about-section,
    .about-fact,
    .about-contact {
        padding: 22px;
    }

    .about-phone,
    .about-btn {
        width: 100%;
    }

    .about-contact__actions {
        flex-direction: column;
    }
}