/**
 * RevoBin - Clean-Tech Scrap Recycling & Marketplace Platform
 * Responsive & Mobile Adaptation Stylesheet
 * Conforming to WCAG 2.2 AA & Mobile-First Best Practices
 */

/* Sticky Mobile CTA Bar (Mobile only: < 768px) */
.mobile-sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--rb-border);
  padding: 12px 16px;
  z-index: 1015;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
}

.mobile-sticky-cta .btn {
  min-height: 46px;
  font-size: 0.95rem;
}

/* Offcanvas Navigation Drawer */
.offcanvas-rb {
  background-color: #FFFFFF;
  width: 320px !important;
  border-right: 1px solid var(--rb-border);
}
.offcanvas-rb .offcanvas-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--rb-border);
}
.offcanvas-rb .offcanvas-body {
  padding: 24px;
}
.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--rb-text-main);
  border-radius: var(--rb-radius-md);
  margin-bottom: 6px;
  transition: all var(--rb-transition-fast);
  min-height: 48px;
}
.mobile-nav-link:hover,
.mobile-nav-link.active {
  background-color: var(--rb-surface-alt);
  color: var(--rb-primary);
}
.mobile-nav-link i {
  font-size: 1.2rem;
  color: var(--rb-primary);
}

/* 320px to 599px (Mobile Extra Small to Small) */
@media (max-width: 599px) {
  .section-padding {
    padding: 50px 0;
  }
  .section-padding-sm {
    padding: 36px 0;
  }
  
  .section-title {
    font-size: 1.75rem;
  }

  .card-estimator {
    padding: 22px 18px;
  }

  .floating-actions {
    bottom: 80px; /* Above mobile sticky CTA */
    right: 16px;
  }

  .mobile-sticky-cta {
    display: flex;
    gap: 10px;
  }

  body {
    padding-bottom: 74px; /* Clearance for sticky CTA */
  }

  .pincode-input-group {
    flex-direction: column;
  }

  .metric-box {
    padding: 16px 8px;
    border-bottom: 1px solid var(--rb-border);
  }
  .metric-number {
    font-size: 2.2rem;
  }

  .step-card {
    margin-bottom: 24px;
  }

  /* Ensure touch target size >= 44px */
  .btn, .form-control-rb, .form-select-rb, .nav-link-rb {
    min-height: 44px;
  }
}

/* 600px to 899px (Tablets & Phablets) */
@media (min-width: 600px) and (max-width: 899px) {
  .section-padding {
    padding: 60px 0;
  }
  .mobile-sticky-cta {
    display: flex;
  }
  body {
    padding-bottom: 74px;
  }
  .floating-actions {
    bottom: 80px;
    right: 20px;
  }
}

/* 900px to 1199px (Laptops & Desktops) */
@media (min-width: 900px) and (max-width: 1199px) {
  .nav-link-rb {
    padding: 8px 10px !important;
    font-size: 0.875rem;
  }
  .mega-dropdown-menu {
    width: 620px;
  }
}

/* 1200px and above (Large Desktops) */
@media (min-width: 1200px) {
  .container {
    max-width: 1445px !important;
  }
}

/* Reduced Motion Preference Accessibility */
@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}