/**
 * Snipinsta Responsive Utilities
 * Comprehensive responsive framework for multiple screen sizes
 * Breakpoints: xs(<576), sm(576-767), md(768-991), lg(992-1199), xl(1200-1399), xxl(≥1400)
 */

/* ============================================
   CSS CUSTOM PROPERTIES FOR SPACING
   ============================================ */
:root {
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;

  /* Touch-friendly minimum sizes */
  --touch-target-min: 44px;
  --touch-target-comfortable: 48px;

  /* Container max-widths */
  --container-sm: 540px;
  --container-md: 720px;
  --container-lg: 960px;
  --container-xl: 1140px;
  --container-xxl: 1320px;
}

/* ============================================
   BASE RESPONSIVE CONTAINER IMPROVEMENTS
   ============================================ */
.container-responsive {
  width: 100%;
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 576px) {
  .container-responsive {
    max-width: var(--container-sm);
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
  }
}

@media (min-width: 768px) {
  .container-responsive {
    max-width: var(--container-md);
  }
}

@media (min-width: 992px) {
  .container-responsive {
    max-width: var(--container-lg);
  }
}

@media (min-width: 1200px) {
  .container-responsive {
    max-width: var(--container-xl);
  }
}

@media (min-width: 1400px) {
  .container-responsive {
    max-width: var(--container-xxl);
  }
}

/* ============================================
   RESPONSIVE SPACING UTILITIES
   ============================================ */

/* Padding utilities with responsive variants */
.p-responsive {
  padding: var(--spacing-sm);
}

.px-responsive {
  padding-left: var(--spacing-sm);
  padding-right: var(--spacing-sm);
}

.py-responsive {
  padding-top: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
}

@media (min-width: 576px) {
  .p-responsive { padding: var(--spacing-md); }
  .px-responsive { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
  .py-responsive { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
}

@media (min-width: 768px) {
  .p-responsive { padding: var(--spacing-lg); }
  .px-responsive { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }
  .py-responsive { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
}

@media (min-width: 992px) {
  .p-responsive { padding: var(--spacing-xl); }
  .px-responsive { padding-left: var(--spacing-xl); padding-right: var(--spacing-xl); }
  .py-responsive { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }
}

/* Section padding */
.section-padding {
  padding-top: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
  .section-padding {
    padding-top: var(--spacing-xxl);
    padding-bottom: var(--spacing-xxl);
  }
}

@media (min-width: 992px) {
  .section-padding {
    padding-top: 4rem;
    padding-bottom: 4rem;
  }
}

/* ============================================
   RESPONSIVE TYPOGRAPHY
   ============================================ */
.text-responsive-lg {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  line-height: 1.2;
}

.text-responsive-xl {
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.1;
}

.text-responsive-xxl {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  line-height: 1.05;
}

/* Responsive body text */
.text-body-responsive {
  font-size: clamp(0.875rem, 2vw, 1rem);
  line-height: 1.6;
}

.text-lead-responsive {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  line-height: 1.5;
}

/* ============================================
   RESPONSIVE BUTTON STYLES
   ============================================ */

/* Button that adapts to screen size */
.btn-responsive {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch-target-min);
  padding: 0.625rem 1.25rem;
  font-size: 0.9375rem;
  border-radius: 0.5rem;
  transition: all 0.2s ease;
}

@media (min-width: 576px) {
  .btn-responsive {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
  }
}

/* Full width on mobile, auto on larger screens */
.btn-mobile-full {
  width: 100%;
}

@media (min-width: 576px) {
  .btn-mobile-full {
    width: auto;
  }
}

/* Button group that stacks on mobile */
.btn-group-responsive {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  width: 100%;
}

@media (min-width: 576px) {
  .btn-group-responsive {
    flex-direction: row;
    flex-wrap: wrap;
    width: auto;
  }
}

@media (min-width: 768px) {
  .btn-group-responsive {
    gap: var(--spacing-md);
  }
}

/* ============================================
   RESPONSIVE FORM CONTROLS
   ============================================ */
.form-control-responsive {
  min-height: var(--touch-target-min);
  padding: 0.625rem 0.875rem;
  font-size: 1rem;
  border-radius: 0.5rem;
}

@media (min-width: 576px) {
  .form-control-responsive {
    min-height: var(--touch-target-comfortable);
    padding: 0.75rem 1rem;
  }
}

/* Form group with responsive spacing */
.form-group-responsive {
  margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
  .form-group-responsive {
    margin-bottom: var(--spacing-lg);
  }
}

/* Form label with touch-friendly spacing */
.form-label-responsive {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  font-size: 0.9375rem;
}

/* ============================================
   RESPONSIVE CARD LAYOUTS
   ============================================ */
.card-responsive {
  border-radius: 0.75rem;
  overflow: hidden;
}

.card-body-responsive {
  padding: var(--spacing-md);
}

@media (min-width: 576px) {
  .card-body-responsive {
    padding: var(--spacing-lg);
  }
}

@media (min-width: 992px) {
  .card-body-responsive {
    padding: var(--spacing-xl);
  }
}

/* Card grid that adapts to screen size */
.card-grid {
  display: grid;
  gap: var(--spacing-md);
  grid-template-columns: 1fr;
}

@media (min-width: 576px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }
}

@media (min-width: 992px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1200px) {
  .card-grid--4cols {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ============================================
   RESPONSIVE NAVIGATION STYLES
   ============================================ */
.nav-responsive .nav-link {
  padding: 0.75rem 1rem;
  min-height: var(--touch-target-min);
  display: flex;
  align-items: center;
}

@media (max-width: 991.98px) {
  .nav-responsive .dropdown-menu {
    position: static;
    border: none;
    box-shadow: none;
    padding-left: var(--spacing-md);
    background: transparent;
  }

  .nav-responsive .dropdown-item {
    padding: 0.75rem 1rem;
    border-radius: 0.375rem;
  }
}

@media (min-width: 992px) {
  .nav-responsive .nav-link {
    padding: 0.5rem 1rem;
  }

  .nav-responsive .dropdown-menu {
    min-width: 220px;
    border-radius: 0.75rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    padding: 0.5rem;
  }

  .nav-responsive .dropdown-item {
    padding: 0.625rem 1rem;
    border-radius: 0.375rem;
    transition: background-color 0.15s;
  }
}

/* ============================================
   RESPONSIVE TOOL PAGE LAYOUT
   ============================================ */
.tool-layout {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

@media (min-width: 992px) {
  .tool-layout {
    flex-direction: row;
  }

  .tool-layout__preview {
    flex: 1 1 65%;
    min-width: 0;
  }

  .tool-layout__sidebar {
    flex: 0 0 35%;
    max-width: 400px;
  }
}

/* Preview area that maintains aspect ratio */
.preview-area {
  position: relative;
  min-height: 250px;
  background: #f8fafc;
  border: 2px dashed #e2e8f0;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (min-width: 576px) {
  .preview-area {
    min-height: 300px;
  }
}

@media (min-width: 768px) {
  .preview-area {
    min-height: 350px;
  }
}

@media (min-width: 992px) {
  .preview-area {
    min-height: 400px;
  }
}

/* Upload zone with touch-friendly target */
.upload-zone {
  min-height: 200px;
  padding: var(--spacing-lg);
  border: 2px dashed #cbd5e1;
  border-radius: 0.75rem;
  background: #f8fafc;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
}

.upload-zone:hover,
.upload-zone:focus-within {
  border-color: var(--bs-primary);
  background: rgba(99, 102, 241, 0.05);
}

.upload-zone.dragover {
  border-color: var(--bs-primary);
  background: rgba(99, 102, 241, 0.1);
  transform: scale(1.01);
}

/* ============================================
   RESPONSIVE HERO SECTION
   ============================================ */
.hero-section {
  padding: var(--spacing-xl) 0;
  text-align: center;
}

@media (min-width: 768px) {
  .hero-section {
    padding: var(--spacing-xxl) 0;
  }
}

@media (min-width: 992px) {
  .hero-section {
    padding: 4rem 0;
    text-align: left;
  }

  .hero-section--centered {
    text-align: center;
  }
}

.hero-content {
  max-width: 100%;
}

@media (min-width: 768px) {
  .hero-content {
    max-width: 80%;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (min-width: 992px) {
  .hero-content {
    max-width: 60%;
    margin-left: 0;
    margin-right: auto;
  }

  .hero-content--centered {
    margin-left: auto;
  }
}

/* ============================================
   RESPONSIVE STATS SECTION
   ============================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
  }
}

.stat-item {
  text-align: center;
  padding: var(--spacing-md);
}

.stat-value {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--bs-primary);
  line-height: 1.1;
}

.stat-label {
  font-size: clamp(0.75rem, 2vw, 0.875rem);
  color: #6b7280;
  margin-top: var(--spacing-xs);
}

/* ============================================
   RESPONSIVE FOOTER
   ============================================ */
.footer-responsive {
  padding: var(--spacing-xl) 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  text-align: center;
}

@media (min-width: 576px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    text-align: left;
  }
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
  }
}

@media (min-width: 992px) {
  .footer-grid {
    grid-template-columns: 2fr repeat(3, 1fr);
  }
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  display: inline-block;
  padding: var(--spacing-xs) 0;
  color: inherit;
  text-decoration: none;
  transition: color 0.15s;
}

@media (max-width: 575.98px) {
  .footer-links a {
    padding: var(--spacing-sm) 0;
  }
}

.footer-links a:hover {
  color: var(--bs-primary);
}

/* ============================================
   RESPONSIVE VISIBILITY UTILITIES
   ============================================ */

/* Hide on specific breakpoints */
.hide-xs { display: none !important; }
@media (min-width: 576px) { .hide-xs { display: block !important; } }

@media (max-width: 575.98px) { .hide-below-sm { display: none !important; } }
@media (max-width: 767.98px) { .hide-below-md { display: none !important; } }
@media (max-width: 991.98px) { .hide-below-lg { display: none !important; } }

@media (min-width: 576px) { .show-only-xs { display: none !important; } }
@media (min-width: 768px) { .show-only-sm { display: none !important; } }
@media (min-width: 992px) { .show-only-md { display: none !important; } }

/* ============================================
   RESPONSIVE GAP UTILITIES
   ============================================ */
.gap-responsive {
  gap: var(--spacing-sm);
}

@media (min-width: 576px) {
  .gap-responsive {
    gap: var(--spacing-md);
  }
}

@media (min-width: 768px) {
  .gap-responsive {
    gap: var(--spacing-lg);
  }
}

/* ============================================
   TABLET-SPECIFIC ADJUSTMENTS (768-991px)
   ============================================ */
@media (min-width: 768px) and (max-width: 991.98px) {
  /* Tablet container padding */
  .container,
  .container-fluid {
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
  }

  /* Tool pages: stack preview/sidebar but with better proportions */
  .tool-page-row {
    display: flex;
    flex-direction: column;
  }

  .tool-page-row .col-lg-8,
  .tool-page-row .col-lg-4 {
    width: 100%;
    max-width: 100%;
  }

  /* Stats on tablet: 2x2 grid looks better */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Pricing cards: 2 columns on tablet */
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Hero: centered but not too wide */
  .hero-content {
    max-width: 90%;
  }
}

/* ============================================
   ACCESSIBILITY IMPROVEMENTS
   ============================================ */

/* Ensure focus states are visible */
.btn-responsive:focus-visible,
.form-control-responsive:focus-visible,
.nav-link:focus-visible {
  outline: 2px solid var(--bs-primary);
  outline-offset: 2px;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .btn-responsive,
  .form-control-responsive,
  .card-responsive {
    border-width: 2px;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
  .hide-print {
    display: none !important;
  }

  .container,
  .container-fluid {
    max-width: 100%;
    padding: 0;
  }
}