/* ============================================================
   VIXUS.IO — Responsive Breakpoints
   ============================================================ */

/* === XL (≥1280px) — styles in style.css =================== */

/* === LG (≥992px, <1280px) ================================= */
@media (max-width: 1279px) {
  h1 { font-size: 3rem; }
  .services-grid { grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
  .portfolio-grid { grid-template-columns: repeat(3, 1fr); }
  .blog-grid { grid-template-columns: repeat(3, 1fr); }
}

/* === MD (≥768px, <992px) =================================== */
@media (max-width: 991px) {
  section { padding: 4.5rem 0; }

  h1 { font-size: 2.6rem; }
  h2 { font-size: 2rem; }

  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .process-wrapper { grid-template-columns: repeat(2, 1fr); }
  .process-connector { display: none; }

  .hero-subtitle { font-size: 1.05rem; }

  .navbar-vx .d-none { display: none !important; }
}

/* === SM (≥576px, <768px) =================================== */
@media (max-width: 767px) {
  .blog-card-featured { flex-direction: column; }
  .blog-featured-img { width: 100%; min-width: 0; height: 200px; }
  .blog-featured-img .blog-img-placeholder { min-height: 200px; }
  .blog-card-featured .blog-body { padding: 1.25rem; }
  section { padding: 3.5rem 0; }

  h1 { font-size: 2.1rem; }
  h2 { font-size: 1.7rem; }
  h3 { font-size: 1.3rem; }

  .services-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .process-wrapper { grid-template-columns: 1fr; }

  .hero-cta { flex-direction: column; align-items: flex-start; }
  .hero-cta .btn-primary-vx,
  .hero-cta .btn-ghost-vx { width: 100%; justify-content: center; }

  .stat-number { font-size: 2.8rem; }

  .contact-form-wrap { padding: 1.5rem; }

  .page-hero { padding: 7.5rem 0 3rem; }

  .filter-tabs { gap: 0.4rem; }
  .filter-btn { padding: 0.4rem 0.9rem; font-size: 0.82rem; }
}

/* === XS (<576px) ========================================== */
@media (max-width: 575px) {
  h1 { font-size: 1.8rem; }

  .btn-primary-vx, .btn-ghost-vx { padding: 0.65rem 1.5rem; font-size: 0.88rem; }

  .testimonial-card { padding: 1.5rem; }
  .author-bio-box { flex-direction: column; }

  .result-value { font-size: 1.8rem; }

  .sidebar-widget { padding: 1.25rem; }

  .navbar-brand-vx { font-size: 1.25rem; }

  .error-code { font-size: 5rem; }
}

/* === MOBILE NAV ============================================ */
/* .navbar-collapse-vx hidden via Bootstrap d-none class on the element.       */
/* JS removes/adds d-none on open/close so the CSS transform transition works. */
@media (max-width: 991px) {
  .nav-hamburger { background: transparent; border: none; cursor: pointer; padding: 0; line-height: 1; margin-right: 0.75rem; color: var(--text); }

  .navbar-collapse-vx {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(10, 12, 18, 0.97);
    backdrop-filter: blur(20px);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 2rem;
  }
  .navbar-collapse-vx.open { transform: translateX(0); }

  .navbar-collapse-vx .nav-link-vx {
    font-size: 1.4rem;
    padding: 0.85rem 1.5rem !important;
    display: block;
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease, color 0.3s ease, background 0.3s ease;
  }
  .navbar-collapse-vx.open .nav-link-vx {
    opacity: 1;
    transform: translateY(0);
  }
  .navbar-collapse-vx.open .nav-link-vx:nth-child(1) { transition-delay: 0.05s; }
  .navbar-collapse-vx.open .nav-link-vx:nth-child(2) { transition-delay: 0.1s; }
  .navbar-collapse-vx.open .nav-link-vx:nth-child(3) { transition-delay: 0.15s; }
  .navbar-collapse-vx.open .nav-link-vx:nth-child(4) { transition-delay: 0.2s; }
  .navbar-collapse-vx.open .nav-link-vx:nth-child(5) { transition-delay: 0.25s; }
  .navbar-collapse-vx.open .nav-link-vx:nth-child(6) { transition-delay: 0.3s; }

  .nav-close-btn {
    position: absolute;
    top: 1.5rem; right: 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.6rem;
    cursor: pointer;
    transition: color 0.3s ease;
  }
  .nav-close-btn:hover { color: var(--text); }

  .nav-cta-mobile {
    margin-top: 1.5rem;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease 0.35s, transform 0.3s ease 0.35s;
  }
  .navbar-collapse-vx.open .nav-cta-mobile {
    opacity: 1;
    transform: translateY(0);
  }
}

/* === LIGHT THEME — MOBILE NAV ============================== */
[data-theme="light"] .navbar-collapse-vx {
  background: rgba(245, 246, 250, 0.97);
}

/* === PRINT ================================================= */
@media print {
  .navbar-vx, footer, .cta-section, #particle-canvas { display: none; }
  body { background: #fff; color: #000; }
}