/* ===========================================
   RESPONSIVE — Mobile-First Breakpoints
   =========================================== */

/* ---- Tablet: 768px+ ---- */
@media (min-width: 768px) {
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cards-grid--3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .industry-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .stats {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .service-detail {
        grid-template-columns: 1fr 1fr;
        gap: 64px;
    }

    .service-detail--reversed .service-detail__content {
        order: 2;
    }

    .service-detail--reversed .service-detail__visual {
        order: 1;
    }

    .about-block {
        grid-template-columns: 1.2fr 0.8fr;
    }

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

    .contact-layout {
        grid-template-columns: 1.4fr 1fr;
        gap: 32px;
    }

    .form-row--2col {
        grid-template-columns: 1fr 1fr;
    }

    .hero__title {
        font-size: 3rem;
    }

    .page-hero__title {
        font-size: 3rem;
    }
}

/* ---- Desktop: 1024px+ ---- */
@media (min-width: 1024px) {
    .cards-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .cards-grid--3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer__grid {
        grid-template-columns: 1.5fr 1fr 1fr 1fr;
    }

    .menu-toggle {
        display: none !important;
    }

    .nav-primary {
        display: flex !important;
        position: static;
        width: auto;
        height: auto;
        background: none;
        padding: 0;
        flex-direction: row;
    }

    .nav-overlay {
        display: none !important;
    }

    .contact-layout {
        grid-template-columns: 1.4fr 1fr;
        gap: 48px;
    }

    /* Process timeline horizontal */
    .process {
        flex-direction: row;
        align-items: flex-start;
        position: relative;
    }

    .process__step {
        flex: 1;
    }

    .process__line {
        display: block;
        position: absolute;
        top: 32px;
        left: 80px;
        right: 80px;
        height: 2px;
        background: var(--color-gradient);
        z-index: 0;
    }

    .hero__title {
        font-size: clamp(3rem, 4vw, 4rem);
    }

    .section {
        padding: var(--section-padding);
    }
}

/* ---- Large Desktop: 1280px+ ---- */
@media (min-width: 1280px) {
    .container {
        padding: 0 48px;
    }
}

/* ---- Mobile Only: below 768px ---- */
@media (max-width: 767px) {
    /* Mobile navigation slide-in */
    .nav-primary {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--color-bg-primary);
        flex-direction: column;
        padding: 100px 32px 32px;
        transition: right var(--transition-default);
        z-index: 999;
        border-left: 1px solid var(--color-border);
    }

    .nav-primary.is-open {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        gap: 8px;
        width: 100%;
    }

    .nav-list .menu-item a,
    .nav-item a.nav-link {
        padding: 12px 16px;
        font-size: 1.0625rem;
        width: 100%;
    }

    .btn--nav {
        width: 100%;
        text-align: center;
        margin-top: 16px;
    }

    .menu-toggle {
        display: flex;
    }

    /* Hero */
    .hero {
        min-height: 90vh;
        padding: 100px 20px 60px;
    }

    .hero__actions {
        flex-direction: column;
        width: 100%;
    }

    .hero__actions .btn {
        width: 100%;
        text-align: center;
    }

    .hero__scroll {
        display: none;
    }

    /* Process steps vertical */
    .process {
        flex-direction: column;
        gap: 32px;
    }

    .process__line {
        display: none;
    }

    .process__text {
        max-width: 100%;
    }

    /* Stats 2-col on small screens */
    .stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    /* Service detail stacked */
    .service-detail {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .service-detail--reversed .service-detail__content,
    .service-detail--reversed .service-detail__visual {
        order: unset;
    }

    .service-detail__visual {
        min-height: 200px;
    }

    /* About block stacked */
    .about-block {
        grid-template-columns: 1fr;
    }

    /* Contact stacked */
    .contact-layout {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .contact-form-wrapper {
        padding: 24px;
    }

    /* CTA banner stacked */
    .cta-banner {
        flex-direction: column;
        text-align: center;
        padding: 32px 24px;
    }

    /* Section padding reduced */
    .section {
        padding: var(--section-padding-sm);
    }

    .page-hero {
        padding: 120px 0 40px;
    }

    /* Footer */
    .footer__grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    /* Industry grid 2-col */
    .industry-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    /* Demo: stack panels vertically */
    .demo__screen {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .demo__panel {
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }

    .demo__panel--log {
        border-left: none;
        border-bottom: none;
        border-top: 1px solid var(--color-border);
    }

    .demo__flow {
        padding: 16px 8px;
    }

    .demo__branches {
        gap: 0;
    }

    .demo__node {
        padding: 8px 12px;
        font-size: 0.7rem;
        gap: 6px;
    }

    .demo__node-icon {
        width: 18px;
        height: 18px;
    }

    .industry-card {
        padding: 24px 16px;
    }

    .privacy-highlights {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .legal-content--compact {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

/* ---- Very small: below 400px ---- */
@media (max-width: 399px) {
    .stats {
        grid-template-columns: 1fr;
    }

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

    .stat__number {
        font-size: 2rem;
    }
}