/* ==============================
   Responsive: 1200px+
   ============================== */
@media (min-width: 1200px) {
    .container {
        padding: 0 2rem;
    }
}

/* ==============================
   Responsive: 768px – 1199px
   ============================== */
@media (max-width: 1199px) {
    :root {
        --fs-4xl: 2.5rem;
        --fs-3xl: 2rem;
        --fs-2xl: 1.75rem;
    }

    .services-grid,
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-facts {
        margin-top: var(--space-xl);
    }

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

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

/* ==============================
   Responsive: 768px and below
   ============================== */
@media (max-width: 768px) {
    :root {
        --header-height: 60px;
        --fs-4xl: 2rem;
        --fs-3xl: 1.75rem;
        --fs-2xl: 1.5rem;
    }

    .header__burger {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--color-white);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--space-2xl);
        gap: var(--space-lg);
        box-shadow: var(--shadow-xl);
        transition: right var(--transition);
        z-index: 1001;
    }

    .nav.open {
        right: 0;
    }

    .nav__close {
        display: flex;
        align-items: center;
        justify-content: center;
        align-self: flex-end;
        background: none;
        border: none;
        font-size: 2rem;
        color: var(--color-text);
        cursor: pointer;
        width: 40px;
        height: 40px;
        margin-bottom: var(--space-md);
    }

    .nav__link {
        font-size: var(--fs-base);
        width: 100%;
        padding: var(--space-sm) 0;
        border-bottom: 1px solid var(--color-border);
    }

    .services-grid,
    .cases-grid {
        grid-template-columns: 1fr;
    }

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

    .hero__stats {
        flex-direction: column;
        gap: var(--space-lg);
    }

    .stat {
        text-align: left;
        display: flex;
        align-items: center;
        gap: var(--space-md);
    }

    .stat__number {
        font-size: var(--fs-2xl);
    }

    .hero__buttons {
        flex-direction: column;
    }

    .hero__buttons .btn {
        text-align: center;
    }

    .footer__grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .about-facts {
        grid-template-columns: 1fr 1fr;
    }

    .service-item__features {
        grid-template-columns: 1fr;
    }

    .page-hero {
        padding: var(--space-2xl) 0;
    }
}

/* ==============================
   Responsive: 320px and below
   ============================== */
@media (max-width: 374px) {
    :root {
        --fs-4xl: 1.5rem;
        --fs-3xl: 1.35rem;
        --fs-2xl: 1.25rem;
        --fs-xl: 1.1rem;
        --fs-lg: 1rem;
        --space-xl: 1rem;
        --space-2xl: 1.5rem;
        --space-3xl: 2.5rem;
        --space-4xl: 3rem;
    }

    .container {
        padding: 0 var(--space-sm);
    }

    .logo__text {
        font-size: 0.95rem;
    }

    .card {
        padding: var(--space-lg);
    }

    .service-item {
        padding: var(--space-lg);
    }

    .service-item__header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-xs);
    }

    .about-facts {
        grid-template-columns: 1fr;
    }

    .contact-item {
        flex-direction: column;
    }

    .nav {
        width: 100%;
    }
}