/* ==========================================================================
   KSI GROUP — RESPONSIVE STYLESHEET (responsive.css)
   Breakpoints:
   - 1200px and up: Master Desktop (1440px Viewport)
   - 992px - 1199px: Standard Laptop / Small Desktop
   - 768px - 991px: Tablet
   - 576px - 767px: Large Mobile Landscape / Phablet
   - 0 - 575px: Mobile Portrait (375px - 430px)
   ========================================================================== */

/* --------------------------------------------------------------------------
   01. LARGE DESKTOPS & MASTER 1440PX
   -------------------------------------------------------------------------- */
@media (min-width: 1440px) {
  .container {
    max-width: 1360px;
  }
}

/* --------------------------------------------------------------------------
   02. LAPTOPS & SMALL SCREENS (max-width: 1199px)
   -------------------------------------------------------------------------- */
@media (max-width: 1199px) {
  :root {
    --section-padding: 75px 0;
  }

  .nav-menu {
    gap: 20px;
  }

  .nav-link {
    font-size: 0.75rem;
  }

  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 30px 20px;
  }

  .about-main-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .about-values-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .why-us-grid {
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
  }

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

  .sister-concern-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .footer-top-grid {
    grid-template-columns: 1.2fr 1fr 1fr 1.2fr;
    gap: 30px;
  }
}

/* --------------------------------------------------------------------------
   03. TABLETS (max-width: 991px)
   -------------------------------------------------------------------------- */
@media (max-width: 991px) {
  :root {
    --header-height: 74px;
    --header-height-scrolled: 68px;
    --section-padding: 65px 0;
  }

  .nav-menu,
  .header-cta {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

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

  .about-main-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .about-collage-wrap {
    max-width: 520px;
    margin: 0 auto;
  }

  .business-cards-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .why-us-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .sister-concern-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .growth-cta-inner {
    flex-direction: column;
    text-align: center;
    padding: 30px 24px;
  }

  .growth-visual {
    margin-bottom: 8px;
  }

  .footer-top-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 30px;
  }

  .floating-contact-bar {
    display: none;
  }

  .mobile-bottom-bar {
    display: block;
  }

  body {
    padding-bottom: 60px; /* Space for mobile bottom bar */
  }

  #back-to-top {
    bottom: 75px;
    right: 20px;
    width: 40px;
    height: 40px;
  }
}

/* --------------------------------------------------------------------------
   04. MOBILE DEVICES (max-width: 767px)
   -------------------------------------------------------------------------- */
@media (max-width: 767px) {
  :root {
    --section-padding: 55px 0;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .hero-title {
    font-size: 2.15rem;
  }

  .hero-description {
    font-size: 0.9375rem;
    margin-bottom: 24px;
  }

  .hero-content {
    padding-top: 10px;
    padding-bottom: 40px;
  }

  .about-collage {
    grid-template-rows: 140px 140px;
  }

  .about-logo-badge {
    width: 100px;
    height: 100px;
    padding: 8px;
  }

  .about-values-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 16px;
  }

  .stat-item {
    gap: 10px;
  }

  .stat-icon svg {
    width: 28px;
    height: 28px;
  }

  .stat-number {
    font-size: 1.5rem;
  }

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

  .project-card {
    height: 240px;
  }

  .why-features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .sister-images-wrap {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .sister-img-card {
    height: 220px;
  }

  .sister-img-card:nth-child(2) {
    transform: none;
  }

  .footer-top-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .copyright-inner {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }
}

/* --------------------------------------------------------------------------
   05. SMALL PHONES (max-width: 480px)
   -------------------------------------------------------------------------- */
@media (max-width: 480px) {
  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}