/* ============================================
   RESPONSIVE STYLES
   ============================================ */

/* ---- TABLET: 1024px ---- */
@media (max-width: 1024px) {
    :root { --section-py: 64px; }

    .nav { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(12px); z-index: 9999; flex-direction: column; justify-content: center; align-items: center; gap: 16px; padding: 80px 32px 32px; border-top: none; }
    .nav.active { display: flex; }
    .nav-list { flex-direction: column; gap: 4px; width: 100%; max-width: 320px; }
    .nav-link { font-size: 16px; padding: 14px 20px; text-align: center; font-weight: 600; border-radius: var(--r-md); }
    .nav-link::after { display: none; }
    .nav-arrow { display: none; }
    .nav-sub { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; padding: 0; background: transparent; min-width: 0; }
    .nav-sub li a { text-align: center; padding: 10px 20px; font-size: 14px; border-radius: var(--r-md); }
    .nav-sub li a:hover { background: var(--primary-50); }
    .nav-link:hover, .nav-link.active { background: var(--primary-50); }
    .hamburger { display: flex; position: relative; z-index: 10000; }
    .header-right { display: none; }

    .hero { height: 420px; }
    .hero-title { font-size: 32px; }

    .items-two-col { grid-template-columns: 1fr; gap: 24px; }
    .items-two-col.reverse .items-image { order: 0; }
    .items-two-col.reverse .items-detail { order: 0; }

    .pricing-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .service-cards-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }

    .about-two-col { grid-template-columns: 1fr; gap: 24px; }
    .about-image img { height: 280px; }

    .feature-row { flex-direction: column; gap: 20px; }
    .feature-row.reverse { flex-direction: column; }
    .feature-row-img img { height: 240px; }

    .cases-grid { grid-template-columns: repeat(2, 1fr); }
    .related-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .area-regions { grid-template-columns: 1fr 1fr; }

    .footer-top { grid-template-columns: 1fr; gap: 24px; }
    .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
    .posts-grid { grid-template-columns: repeat(2, 1fr); }
    .reviews-grid { grid-template-columns: repeat(2, 1fr); }
    .items-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---- MOBILE: 640px ---- */
@media (max-width: 640px) {
    :root { --section-py: 48px; --header-h: 60px; }
    .container { padding: 0 16px; }
    .sp-only { display: inline; }

    .logo-sub { display: none; }
    .logo-main { font-size: 14px; }
    .logo-img { width: 36px; height: 36px; }

    .hero { height: 360px; }
    .hero-title { font-size: 26px; }
    .hero-sub { font-size: 14px; }
    .hero-badges { gap: 6px; }
    .hero-badge { font-size: 11px; padding: 6px 12px; }

    .cta-section { padding: 32px 0; }
    .cta-heading { font-size: 18px; }
    .cta-phone-btn { font-size: 18px; padding: 12px 24px; }
    .cta-mail-btn { font-size: 13px; padding: 12px 20px; }

    .section-title { font-size: 22px; }
    .section-header { margin-bottom: 32px; }

    .items-image img { height: 220px; }

    .pricing-grid { grid-template-columns: 1fr; gap: 16px; }
    .pricing-card-img { height: 160px; }
    .pricing-discount em { font-size: 28px; }

    .service-cards-grid { grid-template-columns: 1fr; gap: 16px; }
    .service-card-v2-img { height: 180px; }

    .feature-row-img img { height: 200px; }
    .feature-row-num { font-size: 36px; }
    .feature-row-body h3 { font-size: 18px; }

    .cases-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .case-card-img { height: 130px; }

    .related-grid { grid-template-columns: 1fr; gap: 16px; }
    .related-card-img { height: 160px; }

    .company-table th { width: 100px; padding: 10px 12px; font-size: 12px; }
    .company-table td { padding: 10px 12px; font-size: 13px; }

    .area-regions { grid-template-columns: 1fr; }

    .faq-question { padding: 12px 16px; gap: 10px; }
    .faq-q-text { font-size: 13px; }

    .footer-links { grid-template-columns: 1fr 1fr; }
    .mobile-cta { display: flex; }
    .footer { padding-bottom: 72px; }
    .scroll-top { bottom: 76px; right: 16px; width: 40px; height: 40px; }
    .page-hero { padding: 32px 0 24px; }
    .page-hero-title { font-size: 22px; }
    .posts-grid { grid-template-columns: 1fr; }
    .reviews-grid { grid-template-columns: 1fr; }
    .gr-score { font-size: 36px; }
    .items-grid { grid-template-columns: 1fr; }
}

/* ---- SMALL: 380px ---- */
@media (max-width: 380px) {
    .hero-title { font-size: 22px; }
    .cta-phone-btn { font-size: 16px; padding: 10px 20px; }
    .cases-grid { grid-template-columns: 1fr; }
    .footer-links { grid-template-columns: 1fr; }
}