/* =============================================
   responsive.css — Media Queries do tema TechCommerce
   Breakpoints: 1280, 1024, 900, 768, 600, 480
   ============================================= */

/* =============================================
   LARGE DESKTOP (≤ 1280px)
   ============================================= */
@media (max-width: 1280px) {
    .platforms-cards-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .hero-inner {
        gap: var(--space-xl);
    }

    .footer-grid {
        grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
        gap: var(--space-xl);
    }
}

/* =============================================
   TABLET LANDSCAPE (≤ 1024px)
   ============================================= */
@media (max-width: 1024px) {
    :root {
        --space-3xl: 5rem;
        --space-2xl: 3.5rem;
    }

    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-2xl);
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-content p {
        max-width: 60ch;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        max-width: 480px;
        margin: 0 auto;
    }

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

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

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

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

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

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .timeline-item {
        grid-template-columns: 60px 1fr;
    }

    .service-detail-item,
    .service-alt {
        grid-template-columns: 1fr;
        direction: ltr;
    }

    .platform-detail,
    .platform-alt {
        grid-template-columns: 1fr;
        direction: ltr;
    }

    .platform-detail-icon {
        width: 80px;
        height: 80px;
    }

    .platform-services-grid .benefits-list {
        grid-template-columns: 1fr;
    }

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

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

    .footer-brand {
        grid-column: 1 / -1;
    }

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

    .commitment-numbers {
        flex-direction: row;
        justify-content: center;
    }
}

/* =============================================
   TABLET PORTRAIT (≤ 900px) — Menu Mobile
   ============================================= */
@media (max-width: 900px) {
    /* Header */
    .main-nav {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: 280px;
        background: var(--color-dark-2);
        border-left: 1px solid var(--color-border);
        z-index: 1001;
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        overflow-y: auto;
        padding: 80px var(--space-lg) var(--space-lg);
    }

    .main-nav.nav-open {
        transform: translateX(0);
    }

    .main-nav .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
    }

    .main-nav .nav-list li {
        width: 100%;
    }

    .main-nav .nav-list li a {
        padding: 0.85rem 0;
        font-size: 1rem;
        border-radius: 0;
        border-bottom: 1px solid var(--color-border);
        display: block;
    }

    .main-nav .nav-list li:last-child a {
        border-bottom: none;
    }

    .menu-toggle {
        display: flex;
    }

    .header-cta {
        display: none;
    }

    /* Plataformas */
    .platforms-logos {
        gap: var(--space-lg);
    }

    /* Process steps */
    .process-steps {
        grid-template-columns: 1fr;
    }

    /* Platforms cards */
    .platforms-cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Timeline */
    .timeline-checklist {
        grid-template-columns: 1fr;
    }

    /* Page hero */
    .page-hero {
        padding: 140px 0 60px;
    }
}

/* =============================================
   MOBILE LARGE (≤ 768px)
   ============================================= */
@media (max-width: 768px) {
    :root {
        --space-3xl: 4rem;
        --space-2xl: 3rem;
        --space-xl:  2rem;
    }

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

    /* Typography */
    h1 { font-size: clamp(2rem, 8vw, 3rem); }
    h2 { font-size: clamp(1.6rem, 6vw, 2.2rem); }

    /* Hero */
    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }

    .hero-visual {
        display: none;
    }

    .hero-stats {
        gap: var(--space-md);
    }

    .stat-item strong {
        font-size: 1.3rem;
    }

    /* Grid layouts */
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

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

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

    .intro-stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    /* Form */
    .form-row {
        grid-template-columns: 1fr;
    }

    .form-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    /* Platforms */
    .platforms-logos {
        gap: var(--space-md);
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: var(--space-xs);
        flex-wrap: nowrap;
    }

    .platforms-cards-grid {
        grid-template-columns: 1fr;
    }

    /* FAQ */
    .faq-grid {
        grid-template-columns: 1fr;
    }

    /* Timeline */
    .timeline-item {
        grid-template-columns: 1fr;
    }

    .timeline-marker {
        flex-direction: row;
        padding-top: 0;
        justify-content: flex-start;
        gap: var(--space-sm);
    }

    .timeline-line {
        display: none;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .footer-brand {
        grid-column: auto;
    }

    .footer-bottom-inner {
        flex-direction: column;
        gap: 0.4rem;
        text-align: center;
    }

    /* CTA */
    .cta-box {
        padding: var(--space-xl) var(--space-md);
    }

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

    .cta-actions .btn {
        width: 100%;
        justify-content: center;
    }

    /* Hero actions */
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }

    /* Commitment */
    .commitment-block {
        padding: var(--space-xl) var(--space-md);
    }

    .commitment-numbers {
        flex-direction: row;
        gap: var(--space-md);
    }

    .commitment-stat strong {
        font-size: 2rem;
    }
}

/* =============================================
   MOBILE SMALL (≤ 600px)
   ============================================= */
@media (max-width: 600px) {
    :root {
        --space-3xl: 3rem;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: var(--space-sm);
    }

    .stat-divider {
        display: none;
    }

    .section-header.centered h2,
    .page-hero h1 {
        font-size: clamp(1.7rem, 7vw, 2.5rem);
    }

    .page-hero {
        padding: 120px 0 50px;
    }

    /* Platform cards mobile */
    .platform-card {
        padding: var(--space-lg);
    }

    /* Service detail */
    .service-detail-item {
        padding: var(--space-xl) 0;
    }

    /* Platform detail */
    .platform-detail {
        padding: var(--space-xl) 0;
    }

    /* Process step */
    .process-step {
        flex-direction: column;
        gap: var(--space-sm);
        padding: var(--space-md);
    }

    /* Contact channel */
    .contact-channel-item {
        padding: var(--space-sm) var(--space-md);
    }

    /* Nav mobile width */
    .main-nav {
        width: 100%;
    }

    .intro-stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .about-feature-card {
        flex-direction: column;
    }

    /* Commitment */
    .commitment-numbers {
        flex-wrap: wrap;
        justify-content: center;
    }

    .commitment-stat {
        min-width: 120px;
        flex: 1;
    }
}

/* =============================================
   MOBILE XS (≤ 480px)
   ============================================= */
@media (max-width: 480px) {
    .logo-img,
    .custom-logo {
        height: 36px;
    }

    .btn-lg {
        padding: 0.9rem 1.8rem;
        font-size: 0.95rem;
    }

    .hero-actions .btn,
    .cta-actions .btn {
        font-size: 0.9rem;
        padding: 0.85rem 1.5rem;
    }

    .stat-item strong {
        font-size: 1.2rem;
    }

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

/* =============================================
   PRINT
   ============================================= */
@media print {
    .site-header,
    .menu-toggle,
    .hero-scroll-indicator,
    .cta-section,
    .site-footer {
        display: none;
    }

    body {
        color: #000;
        background: #fff;
    }

    a { color: #000; }
}