/* ==========================================================================
   AI BYTE ACADEMY - RESPONSIVE & MOBILE STYLING
   ========================================================================== */

/* Tablets & Small Laptops (<= 1024px) */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .corporate-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .roadmap-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .logos-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .courses-cards-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.85rem;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
  }
}

/* Tablets & Mobile (<= 768px) */
@media (max-width: 768px) {
  :root {
    --header-height: 74px;
    --topbar-height: 36px;
  }

  .brand-logo-img {
    height: 90px;
  }

  body {
    padding-bottom: 68px; /* space for mobile sticky bar */
  }

  .header-topbar-right {
    display: none;
  }

  .header-topbar-inner {
    justify-content: center;
  }

  .desktop-nav {
    position: fixed;
    top: calc(var(--header-height) + var(--topbar-height));
    left: 0;
    width: 100%;
    height: calc(100vh - (var(--header-height) + var(--topbar-height)));
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem 1.75rem;
    gap: 1.25rem;
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
  }

  .desktop-nav.active {
    transform: translateX(0);
  }

  .nav-item {
    font-size: 1.15rem;
    width: 100%;
    padding: 0.65rem 0;
    border-bottom: 1px solid var(--border-light);
    color: #0f172a;
  }

  .nav-dropdown {
    position: static;
    opacity: 1;
    pointer-events: auto;
    transform: none;
    width: 100%;
    box-shadow: none;
    background: #f8fafc;
    border: 1px solid var(--border-light);
    margin-top: 0.5rem;
  }

  .nav-cta-group {
    display: none;
  }

  .hamburger-btn {
    display: flex;
  }

  .hamburger-btn.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .hamburger-btn.active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger-btn.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .form-grid-2 {
    grid-template-columns: 1fr;
  }

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

  .courses-cards-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .course-filter-buttons {
    gap: 0.4rem;
    margin-top: -0.5rem;
    margin-bottom: 1.25rem;
  }

  .course-filter-btn {
    padding: 0.36rem 0.78rem;
    font-size: 0.78rem;
  }

  .batches-grid,
  .jobs-cards-grid {
    grid-template-columns: 1fr;
  }

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

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

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

  .why-excel-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }

  .learning-path-flow {
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem 1rem;
  }

  .path-arrow-divider {
    display: none;
  }

  .path-bracket-wrap {
    margin-top: 1.5rem;
  }

  .path-bracket-line {
    display: none;
  }

  .path-bracket-text {
    font-size: 1.05rem;
    padding: 0;
    margin-top: 0;
  }

  .mobile-sticky-bar {
    display: flex;
  }

  .floating-whatsapp {
    bottom: 78px;
    right: 18px;
    width: 52px;
    height: 52px;
  }
}

/* Small Smart Phones (<= 480px) */
@media (max-width: 480px) {
  .hero-title {
    font-size: 28px;
  }

  .hero-trust-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    padding: 0.75rem 0;
  }

  .hero-trust-item {
    border-right: none;
    padding: 0.5rem;
    white-space: normal;
  }

  .hero-cat-tiles-grid {
    grid-template-columns: 1fr 1fr;
    column-gap: 0;
    row-gap: 0.5rem;
  }

  .hero-cat-tile {
    padding: 0.35rem 0.25rem;
  }

  .hero-cat-tile-label {
    white-space: normal;
    font-size: 0.72rem;
  }

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

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

  .corp-tags-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ==========================================================================
   Corporate Training Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .corp-stats-grid,
  .corp-stats-bar {
    grid-template-columns: repeat(4, 1fr);
    max-width: 760px;
    gap: 0.65rem;
  }

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

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

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

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

  .corp-estimator-body {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .corp-rfp-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .section,
  .section-padding {
    padding: 3.5rem 0;
  }

  .corp-stats-section {
    padding: 1.75rem 0;
  }

  .corp-trust-sec {
    padding: 2.75rem 0;
  }

  .corp-estimator-box {
    margin-top: 3.5rem;
  }

  .corp-hero {
    padding: 3rem 0 2.5rem;
  }

  .corp-stats-grid,
  .corp-stats-bar {
    grid-template-columns: repeat(2, 1fr);
    padding: 0.65rem 0.85rem;
    gap: 0.65rem;
    max-width: 420px;
    margin-top: -1.25rem;
  }

  .corp-stat-item,
  .corp-stat-card {
    border-right: none !important;
    border-bottom: none !important;
    padding: 0.25rem;
  }

  .corp-stat-number,
  .corp-stat-num {
    font-size: 1.2rem;
  }

  .corp-stat-label,
  .corp-stat-lbl {
    white-space: normal;
    font-size: 0.7rem;
  }

  .corp-modalities-grid {
    grid-template-columns: 1fr;
  }

  .corp-framework-grid {
    grid-template-columns: 1fr;
  }

  .corp-compliance-grid {
    grid-template-columns: 1fr;
  }

  .corp-cases-grid {
    grid-template-columns: 1fr;
  }

  .corp-tracks-grid {
    grid-template-columns: 1fr;
  }

  .corp-estimator-body {
    padding: 1.5rem;
  }

  .corp-estimator-header {
    padding: 1.5rem;
  }

  .corp-form-card {
    padding: 1.75rem 1.25rem;
  }

  .corp-input-grid {
    grid-template-columns: 1fr;
  }

  .corp-input-full {
    grid-column: auto;
  }

  .corp-cta-banner {
    padding: 2.5rem 1.5rem;
  }

  .corp-advisory-box {
    padding: 1.75rem 1.25rem;
  }
}

@media (max-width: 480px) {
  .batch-card-actions,
  .batch-actions-row {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   ABOUT US PAGE RESPONSIVE STYLING
   ========================================================================== */
@media (max-width: 1024px) {
  .about-stats-bar,
  .placement-kpi-grid,
  .cert-stats-grid {
    grid-template-columns: repeat(3, 1fr);
    max-width: 680px;
    gap: 0.65rem;
  }

  .about-story-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

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

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

  .campus-grid-modern {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .about-stats-bar,
  .placement-kpi-grid,
  .cert-stats-grid {
    grid-template-columns: repeat(2, 1fr);
    padding: 0.65rem 0.85rem;
    gap: 0.65rem;
    max-width: 380px;
    margin-top: -1.25rem;
  }

  .about-stat-item,
  .placement-kpi-card,
  .cert-stat-card {
    border-right: none;
    padding: 0.25rem;
  }

  .about-stat-number {
    font-size: 1.2rem;
  }

  .about-stat-label {
    white-space: normal;
    font-size: 0.7rem;
  }

  .mentor-grid-modern {
    grid-template-columns: 1fr;
  }

  .campus-card-modern {
    padding: 1.5rem;
  }

  .about-terminal-card {
    border-radius: var(--radius-md);
  }

  .terminal-body {
    padding: 1.25rem 1rem;
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  .about-stats-bar,
  .placement-kpi-grid,
  .cert-stats-grid,
  .corp-stats-grid,
  .corp-stats-bar {
    grid-template-columns: 1fr;
    max-width: 240px;
  }

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

@media (max-width: 1024px) {
  .why-choose-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }

  .exp-cta-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about-experience-cta {
    padding: 2.5rem 2rem;
  }
}

@media (max-width: 768px) {
  .exp-cta-title {
    font-size: 1.85rem;
  }

  .why-choose-card {
    padding: 1.5rem 1.25rem;
  }
}

@media (max-width: 640px) {
  .why-choose-grid {
    grid-template-columns: 1fr;
  }

  .about-experience-cta {
    padding: 2rem 1.25rem;
  }

  .exp-cta-action-card {
    padding: 1.5rem 1rem;
  }
}