/**
 * Jyot Institute of Teachers Training (JITT)
 * Responsive Architecture & Mobile Conversion Utilities
 * File: assets/css/responsive.css
 */

/* ==========================================================================
   Mobile Sticky Bottom Conversion Bar (< 768px)
   ========================================================================== */
.mobile-sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--color-border);
  padding: 0.65rem var(--space-4);
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
  z-index: var(--z-sticky);
  gap: var(--space-3);
}

.mobile-sticky-bar .btn {
  flex: 1;
  padding: 0.75rem var(--space-2);
  font-size: 0.875rem;
  border-radius: var(--radius-md);
}

/* ==========================================================================
   Breakpoint: Large Desktop & Laptops (< 1200px)
   ========================================================================== */
@media (max-width: 1200px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: var(--space-6);
  }
}

/* ==========================================================================
   Breakpoint: Tablets & Compact Desktops (< 1024px)
   ========================================================================== */
@media (max-width: 1023px) {
  /* Navigation Drawer Transition */
  .menu-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: var(--color-bg-body);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-6) var(--space-6) var(--space-12);
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform var(--transition-smooth);
    box-shadow: var(--shadow-xl);
    gap: var(--space-1);
    z-index: var(--z-drawer);
  }

  .nav-menu.is-open {
    transform: translateX(0);
  }

  .nav-link {
    width: 100%;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    font-size: 1.0625rem;
    border-bottom: 1px solid var(--color-border-subtle);
  }

  /* Mobile Dropdowns convert to inline accordions */
  .dropdown-menu,
  .dropdown-menu.dropdown-wide {
    position: static;
    width: 100%;
    box-shadow: none;
    border: none;
    background-color: var(--color-bg-subtle);
    border-radius: var(--radius-sm);
    margin: var(--space-1) 0 var(--space-2);
    display: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    padding: var(--space-2);
  }

  .nav-item.is-expanded > .dropdown-menu {
    display: block;
  }

  .dropdown-item {
    padding: var(--space-3) var(--space-4);
  }

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

  .trust-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }

  .trust-grid .metric-label {
    font-size: 0.8125rem;
  }

  .mentors-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
  }

  /* Header CTA adjustments */
  .header-actions .btn-contact {
    display: none;
  }
}

/* ==========================================================================
   Breakpoint: Mobile Devices (< 768px)
   ========================================================================== */
@media (max-width: 767px) {
  /* Show Mobile Bottom Sticky Conversion Bar */
  .mobile-sticky-bar {
    display: flex;
  }

  /* Add padding bottom to body to avoid sticky bar covering content */
  body {
    padding-bottom: 60px;
  }

  .top-bar-left {
    display: none; /* Keep Ahmedabad & Vadodara hotline compact on mobile */
  }

  .top-bar-right {
    width: 100%;
    justify-content: space-between;
  }

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

  .trust-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .metric-item::after {
    display: none !important;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

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

  .card-carousel-inner {
    flex-wrap: wrap;
    justify-content: center;
  }

  .card-carousel-viewport {
    flex: 1 1 100%;
    order: 1;
  }

  .card-carousel-prev {
    order: 2;
  }

  .card-carousel-next {
    order: 3;
  }

  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
    gap: var(--space-3);
  }

  .footer-legal-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-3);
  }
}

/* ==========================================================================
   Breakpoint: Small Phones (< 430px)
   ========================================================================== */
@media (max-width: 429px) {
  .brand-name {
    font-size: 1.15rem;
  }

  .brand-tagline {
    font-size: 0.65rem;
  }

  .brand-logo-img {
    width: 42px;
    height: 42px;
  }

  .footer-logo-img {
    width: 44px;
    height: 44px;
  }

  .brand-symbol {
    width: 38px;
    height: 38px;
  }

  .enquiry-card {
    padding: var(--space-5);
  }

  .course-card-footer {
    flex-direction: column;
  }
}