/* ============================================================
   RESPONSIVE STYLES — ZS POWER SOLUTIONS
   ============================================================ */

/* ============================================================
   TABLET (≤ 1024px)
   ============================================================ */
   @media (max-width: 1024px) {
    .hero-content h1 { font-size: 2.4rem; }
    .contact-wrapper { grid-template-columns: 1fr; gap: 30px; }
    .about-grid { gap: 30px; }
    .products-title { font-size: 2.2rem; }
    .contact-title { font-size: 2.2rem; }
  }
  
  /* ============================================================
     MOBILE / TABLET (≤ 992px) — HAMBURGER MENU
     ============================================================ */
  @media (max-width: 992px) {
  
    /* Header */
    .header { top: 34px; padding: 12px 0; }
    .logo img { height: 60px; }
    .header.scrolled .logo img { height: 50px; }
  
    /* Show hamburger */
    .hamburger { display: flex; }
  
    /* Nav menu — slide-in overlay */
    .nav-menu {
      position: fixed !important;
      top: 0 !important;
      right: -100% !important;
      left: auto !important;
      bottom: 0 !important;
      width: 80% !important;
      max-width: 340px;
      height: 100vh !important;
      background: var(--zs-navy-dark) !important;
      flex-direction: column !important;
      align-items: stretch !important;
      justify-content: flex-start !important;
      padding: 100px 30px 40px !important;
      gap: 0 !important;
      margin: 0 !important;
      transition: right 0.4s ease !important;
      box-shadow: -10px 0 30px rgba(0,0,0,0.3);
      z-index: 1100 !important;
      overflow-y: auto;
      display: flex !important;
    }
  
    .nav-menu.active { right: 0 !important; }
  
    .nav-menu a {
      display: block !important;
      width: 100% !important;
      padding: 16px 0 !important;
      margin: 0 !important;
      color: #FFFFFF !important;
      font-size: 1.05rem !important;
      font-family: var(--font-heading);
      font-weight: 500;
      line-height: 1.4 !important;
      border-bottom: 1px solid rgba(255,255,255,0.1) !important;
      border-radius: 0 !important;
      text-align: left !important;
      position: static !important;
    }
  
    .nav-menu a:hover,
    .nav-menu a.active {
      color: var(--zs-green) !important;
      padding-left: 10px !important;
      border-bottom: 1px solid rgba(255,255,255,0.1) !important;
      border-left: 3px solid var(--zs-green) !important;
    }
  
    /* Backdrop */
    body.menu-open::before {
      content: '' !important;
      position: fixed !important;
      inset: 0 !important;
      /*background: rgba(0,0,0,0.55) !important;*/
      z-index: 1099 !important;
      display: block !important;
    }
  
    body.menu-open { overflow: hidden !important; }
  
    /* Hero */
    .hero-slider { padding-top: 130px; }
    .hero-content h1 { font-size: 2rem; }
    .hero-content p { font-size: 1rem; }
    .hero-tagline { font-size: 0.85rem; letter-spacing: 1.8px; }
  
    /* About */
    .about-grid { grid-template-columns: 1fr; }
  
    /* Why list */
    .why-list { grid-template-columns: 1fr 1fr; }
  
    /* Stats */
    .stat-item .number { font-size: 2.5rem; }
  }
  
  /* ============================================================
     MOBILE (≤ 768px)
     ============================================================ */
  @media (max-width: 768px) {
  
    .top-bar { font-size: 0.78rem; padding: 7px 0; }
    .header { top: 32px; padding: 10px 0; }
    .logo img { height: 50px; }
    .header.scrolled .logo img { height: 45px; }
  
    .hero-slider { height: auto; min-height: 600px; padding: 150px 0 70px; }
    .hero-content h1 { font-size: 1.75rem; }
    .hero-content p { font-size: 0.95rem; }
    .hero-tagline { font-size: 0.75rem; letter-spacing: 1.5px; margin-bottom: 15px; }
    .hero-content a, .btn-primary { padding: 12px 28px; font-size: 0.9rem; }
  
    .section { padding: 60px 0; }
    .dark-section { padding: 60px 0; }
    .section-title { margin-bottom: 35px; }
    .section-title h2 { font-size: 1.6rem; }
    .section-title p { font-size: 0.92rem; }
  
    .services-grid { gap: 20px; }
    .service-card { padding: 28px 20px; }
    .service-card .icon { width: 60px; height: 60px; font-size: 24px; }
  
    .stats-section { padding: 45px 0; }
    .stats-grid { gap: 25px; grid-template-columns: repeat(2, 1fr); }
    .stat-item .number { font-size: 2.2rem; }
    .stat-item .label { font-size: 0.85rem; }
  
    .industries-grid { grid-template-columns: 1fr; gap: 12px; }
    .industry-item { font-size: 0.9rem; padding: 13px 16px; }
  
    .why-list { grid-template-columns: 1fr; }
    .why-item { padding: 15px 16px; }
    .why-item span { font-size: 0.9rem; }
  
    .category-title { font-size: 1rem; }
    .partner-logo, .client-logo { height: 85px; padding: 10px; }
    .partner-logo img, .client-logo img { max-height: 45px; }
  
    .cert-grid { grid-template-columns: 1fr 1fr; gap: 15px; }
    .cert-card { padding: 20px 15px; }
    .cert-card i { font-size: 2rem; }
  
    .achievements-list { grid-template-columns: 1fr; gap: 15px; }
    .achievement-item { padding: 20px; }
    .achievement-item h4 { font-size: 1rem; }
  
    .products-title { font-size: 1.8rem; }
    .products-subtitle { font-size: 0.95rem; }
    .products-header { margin-bottom: 40px; }
    .products-grid { gap: 20px; }
    .product-img-wrap { height: 180px; padding: 30px 20px; }
    .product-img-wrap img { max-height: 110px; }
    .product-body { padding: 20px 20px 22px; }
  
    .contact-title { font-size: 1.8rem; }
    .contact-wrapper { gap: 25px; }
    .contact-info-box { padding: 35px 25px; }
    .contact-form-box { padding: 30px 25px; }
    .contact-section { padding: 60px 0; }
  
    .footer { padding: 50px 0 20px; }
    .footer-grid { gap: 30px; margin-bottom: 30px; }
  }
  
  /* ============================================================
     SMALL MOBILE (≤ 576px)
     ============================================================ */
  @media (max-width: 576px) {
  
    .container { padding: 0 16px; }
  
    .top-bar { font-size: 0.72rem; padding: 6px 0; }
    .top-bar .container {
      justify-content: center;
      text-align: center;
      flex-direction: column;
      gap: 3px;
    }
    .header { top: 44px; padding: 10px 0; }
    .logo img { height: 45px; }
    .header.scrolled .logo img { height: 40px; }
  
    .nav-menu { width: 85% !important; padding: 90px 25px 40px !important; }
    .nav-menu a { font-size: 1rem !important; padding: 14px 0 !important; }
  
    .hero-slider { height: auto; min-height: 620px; padding: 140px 0 80px; }
    .hero-content { margin-top: 0; padding: 0 10px; }
    .hero-content h1 { font-size: 1.4rem; margin-bottom: 15px; }
    .hero-content p { font-size: 0.88rem; margin-bottom: 22px; }
    .hero-tagline { font-size: 0.7rem; letter-spacing: 1.2px; margin-bottom: 12px; }
    .hero-content a, .btn-primary { padding: 11px 24px; font-size: 0.85rem; }
    .heroSwiper .swiper-pagination-bullet { width: 9px; height: 9px; margin: 0 4px !important; }
    .heroSwiper .swiper-pagination-bullet-active { width: 26px; }
  
    .section { padding: 45px 0; }
    .dark-section { padding: 45px 0; }
    .section-title { margin-bottom: 30px; }
    .section-title h2 { font-size: 1.35rem; padding-bottom: 12px; }
    .section-title h2::after { width: 60px; height: 3px; }
    .section-title p { font-size: 0.88rem; }
  
    .about-icons { grid-template-columns: 1fr 1fr; gap: 12px; }
    .about-icon-item { padding: 15px 10px; }
    .about-icon-item i { font-size: 1.6rem; }
    .about-icon-item h4 { font-size: 0.78rem; }
  
    .services-grid { grid-template-columns: 1fr; gap: 16px; }
    .service-card { padding: 25px 18px; }
    .service-card .icon { width: 55px; height: 55px; font-size: 22px; }
    .service-card h3 { font-size: 1.05rem; }
    .service-card p { font-size: 0.88rem; }
  
    .stats-section { padding: 40px 0; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
    .stat-item .number { font-size: 1.9rem; }
    .stat-item .label { font-size: 0.75rem; }
  
    .industries-grid { gap: 10px; }
    .industry-item { font-size: 0.85rem; padding: 12px 14px; }
    .industry-item i { margin-right: 8px; }
  
    .why-item { padding: 13px 14px; gap: 10px; }
    .why-item i { font-size: 1rem; }
    .why-item span { font-size: 0.85rem; }
  
    .partner-logo, .client-logo { height: 75px; padding: 8px; }
    .partner-logo img, .client-logo img { max-height: 40px; }
    .partner-category { margin-bottom: 30px; }
    .category-title { font-size: 0.92rem; padding-left: 12px; }
  
    .cert-grid { grid-template-columns: 1fr; gap: 15px; }
    .cert-card { padding: 20px; }
    .cert-card h4 { font-size: 0.95rem; }
    .cert-card p { font-size: 0.8rem; }
  
    .achievement-item { padding: 18px; }
    .achievement-item h4 { font-size: 0.95rem; }
    .achievement-item p { font-size: 0.85rem; }
  
    .products-title { font-size: 1.5rem; }
    .products-subtitle { font-size: 0.88rem; }
    .products-header { margin-bottom: 30px; }
    .section-tag { font-size: 0.7rem; padding: 6px 14px; }
    .products-grid { grid-template-columns: 1fr; gap: 18px; }
    .product-img-wrap { height: 160px; padding: 25px 15px; }
    .product-img-wrap img { max-height: 100px; }
    .product-body { padding: 18px 18px 20px; }
    .product-body h3 { font-size: 1.05rem; }
    .product-body p { font-size: 0.85rem; }
  
    .contact-title { font-size: 1.5rem; }
    .contact-subtitle { font-size: 0.9rem; }
    .contact-header { margin-bottom: 35px; }
    .contact-info-box { padding: 28px 20px; }
    .contact-info-box h3 { font-size: 1.25rem; }
    .info-item { margin-bottom: 20px; gap: 12px; }
    .info-item i { font-size: 1rem; width: 20px; }
    .info-item strong { font-size: 0.88rem; }
    .info-item p { font-size: 0.8rem; }
    .contact-form-box { padding: 25px 18px; }
  
    .quote-form .form-row { grid-template-columns: 1fr; gap: 15px; margin-bottom: 15px; }
    .form-group label { font-size: 0.8rem; }
    .form-group input,
    .form-group select,
    .form-group textarea { padding: 11px 14px; font-size: 0.88rem; }
    .form-group textarea { min-height: 100px; }
    .btn-submit { padding: 13px 24px; font-size: 0.9rem; }
    .form-note { font-size: 0.72rem; }
  
    .footer { padding: 40px 0 18px; }
    .footer-grid { grid-template-columns: 1fr; gap: 25px; margin-bottom: 25px; }
    .footer h4 { font-size: 1rem; margin-bottom: 15px; }
    .footer p, .footer a { font-size: 0.85rem; line-height: 1.9; }
    .footer-bottom { font-size: 0.78rem; }
  
    .whatsapp-float { width: 50px; height: 50px; font-size: 24px; bottom: 20px; right: 20px; }
  }
  
  /* ============================================================
     EXTRA SMALL (≤ 400px)
     ============================================================ */
  @media (max-width: 400px) {
    .container { padding: 0 12px; }
  
    .top-bar { font-size: 0.65rem; }
    .header { top: 42px; }
    .logo img { height: 40px; }
  
    .hero-content h1 { font-size: 1.2rem; }
    .hero-content p { font-size: 0.82rem; }
    .hero-tagline { font-size: 0.65rem; }
    .hero-content a, .btn-primary { padding: 10px 20px; font-size: 0.8rem; }
  
    .section-title h2 { font-size: 1.15rem; }
  
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 15px; }
    .stat-item .number { font-size: 1.6rem; }
    .stat-item .label { font-size: 0.7rem; }
  
    .about-icons { grid-template-columns: 1fr; }
  
    .contact-title { font-size: 1.3rem; }
    .products-title { font-size: 1.3rem; }
  }





  /* =========================================
   MOBILE HEADER FIX
   ========================================= */

@media (max-width: 992px) {

  html,
  body {
      width: 100%;
      max-width: 100%;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
  }

  .top-bar {
      width: 100%;
      left: 0;
      right: 0;
  }

  .header {
      position: fixed !important;
      top: 34px !important;
      left: 0 !important;
      right: 0 !important;
      width: 100% !important;
      max-width: 100% !important;
      transform: none !important;
      visibility: visible !important;
      opacity: 1 !important;
      z-index: 1000 !important;
  }

  .header.scrolled {
      transform: none !important;
      visibility: visible !important;
      opacity: 1 !important;
  }

  .header .container {
      width: 100% !important;
      max-width: 1200px;
  }

  .hamburger {
      display: flex !important;
      visibility: visible !important;
      opacity: 1 !important;
      transform: none !important;
  }
}

@media (max-width: 768px) {

  .header {
      top: 32px !important;
  }
}

@media (max-width: 576px) {

  .header {
      top: 44px !important;
  }

  .header .container {
      width: 100% !important;
      padding-left: 16px !important;
      padding-right: 16px !important;
  }
}