/* ============================================================
   ADVENZA TEK — Responsive CSS
   Mobile-first breakpoints for all screen sizes
   ============================================================ */

/* ====== Large Desktop (1440px+) ====== */
@media (min-width: 1440px) {
  :root {
    --container: 1360px;
  }
}

/* ====== Tablet + Small Desktop (max 1024px) ====== */
@media (max-width: 1024px) {
  :root {
    --container: 100%;
  }

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

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

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

  .stats-bar__item:nth-child(2) {
    border-right: none;
  }

  .stats-bar__item:nth-child(3) {
    border-right: 1px solid var(--color-border);
  }

  .stats-bar__item {
    border-bottom: 1px solid var(--color-border);
  }

  .stats-bar__item:nth-child(3),
  .stats-bar__item:nth-child(4) {
    border-bottom: none;
  }
}

/* ====== Tablet (max 768px) ====== */
@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

  .navbar__links,
  .navbar__cta {
    display: none;
  }

  .navbar__toggle {
    display: flex;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

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

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

  .footer__brand-desc {
    max-width: 100%;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

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

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

  .stats-bar__item:nth-child(even) {
    border-left: 1px solid var(--color-border);
  }

  .stats-bar__item:nth-last-child(-n+2) {
    border-bottom: none;
  }

  .page-hero {
    padding: calc(var(--nav-height) + 40px) 0 56px;
  }

  .process-step {
    flex-direction: column;
    gap: 16px;
  }

  /* Services page sections */
  .service-section__inner {
    flex-direction: column !important;
  }

  .service-section__inner.reverse {
    flex-direction: column !important;
  }
}

/* ====== Mobile (max 480px) ====== */
@media (max-width: 480px) {
  :root {
    --nav-height: 64px;
  }

  body {
    font-size: 15px;
  }

  .container {
    padding: 0 16px;
  }

  .section {
    padding: 56px 0;
  }

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

  .btn-lg {
    padding: 15px 26px;
    font-size: 0.9375rem;
  }

  .card {
    padding: 24px;
  }

  .stats-bar__number {
    font-size: 2rem;
  }

  .footer {
    padding: 56px 0 0;
  }

  .footer__bottom-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
  }

  #scroll-top {
    bottom: 20px;
    right: 20px;
  }

  .testimonial-card {
    padding: 24px;
  }

  .grid-2 {
    gap: 16px;
  }
}

/* ====== Very small screens (360px) ====== */
@media (max-width: 360px) {
  .section-title {
    font-size: 1.5rem;
  }

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

  .stats-bar__item {
    border-right: none;
    border-left: none !important;
  }

  .stats-bar__item:nth-last-child(-n+2) {
    border-bottom: 1px solid var(--color-border);
  }

  .stats-bar__item:last-child {
    border-bottom: none;
  }
}

/* ====== Hero-specific responsive ====== */
@media (max-width: 768px) {
  .hero {
    padding: calc(var(--nav-height) + 56px) 0 64px;
  }

  .hero__title {
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .hero__subtitle {
    font-size: 1rem;
  }

  .hero__cta-group {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .hero__cta-group .btn {
    width: 100%;
    justify-content: center;
    max-width: 320px;
  }

  .hero__visual {
    display: none;
  }
}

/* ====== About page responsive ====== */
@media (max-width: 768px) {
  .about-split {
    flex-direction: column;
    gap: 40px;
  }

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

/* ====== Technologies page responsive ====== */
@media (max-width: 768px) {
  .tech-category {
    padding: 24px;
  }

  .tech-badges-wrap {
    gap: 8px;
  }

  .tech-badge {
    padding: 8px 14px;
    font-size: 0.8125rem;
  }
}

/* ====== Contact page responsive ====== */
@media (max-width: 768px) {
  .contact-grid {
    flex-direction: column;
    gap: 40px;
  }

  .contact-info-card {
    padding: 28px;
  }
}

/* ====== Print ====== */
@media print {
  .navbar,
  .footer,
  #scroll-top,
  .navbar__mobile-menu {
    display: none !important;
  }

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

  .section {
    padding: 32px 0;
  }
}