/**
 * BYD Shares and Stocks - Responsive Styles
 * 
 * Media queries for all breakpoints.
 * Mobile-first approach with progressive enhancement.
 * 
 * Breakpoints:
 * - xs: 320px (Mobile S)
 * - sm: 375px (Mobile M)
 * - md: 768px (Tablet)
 * - lg: 1024px (Desktop)
 * - xl: 1200px (Large Desktop)
 * - xxl: 1440px (Extra Large)
 */

/* ============================================
   1. EXTRA SMALL DEVICES (320px and up)
   ============================================ */
@media (max-width: 374px) {
  /* Typography adjustments */
  .display-1 {
    font-size: 2.5rem;
  }
  
  .display-2 {
    font-size: 2rem;
  }
  
  h1, .h1 {
    font-size: 1.75rem;
  }
  
  /* Container padding */
  .container {
    padding-left: var(--space-3);
    padding-right: var(--space-3);
  }
  
  /* Button adjustments */
  .btn {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-body-sm);
  }
  
  .btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-body);
  }
  
  /* Card padding */
  .card-body {
    padding: var(--space-4);
  }
  
  .feature-card {
    padding: var(--space-5);
  }
  
  .price-card {
    padding: var(--space-5);
  }
}

/* ============================================
   2. SMALL DEVICES - MOBILE (375px - 767px)
   ============================================ */
@media (max-width: 767px) {
  /* Global adjustments */
  body {
    font-size: var(--text-body-sm);
  }
  
  /* Section spacing */
  .section {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
  }
  
  .section-header {
    margin-bottom: var(--space-8);
  }
  
  /* Typography */
  .display-1 {
    font-size: 2.75rem;
    line-height: 1.1;
  }
  
  .display-2 {
    font-size: 2.25rem;
  }
  
  h1, .h1 {
    font-size: 2rem;
  }
  
  h2, .h2 {
    font-size: 1.5rem;
  }
  
  h3, .h3 {
    font-size: 1.25rem;
  }
  
  .lead {
    font-size: var(--text-body);
  }
  
  /* Grids stack */
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
  
  /* Two column layouts stack */
  .two-col,
  .two-col-content,
  .two-col-content-reverse {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  /* Form row stacks */
  .form-row {
    grid-template-columns: 1fr;
  }
  
  /* Button group stacks */
  .btn-group {
    flex-direction: column;
  }
  
  .btn-group .btn {
    width: 100%;
  }
  
  /* Stats smaller */
  .stat-value {
    font-size: var(--text-h1);
  }
  
  /* Price card adjustments */
  .price-value {
    font-size: var(--text-h1);
  }
  
  /* Table horizontal scroll */
  .table-wrapper {
    margin-left: calc(var(--container-padding-sm) * -1);
    margin-right: calc(var(--container-padding-sm) * -1);
    padding-left: var(--container-padding-sm);
    padding-right: var(--container-padding-sm);
    border-radius: 0;
    border-left: none;
    border-right: none;
  }
  
  /* Footer stacks */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .footer-brand {
    max-width: 100%;
    text-align: center;
  }
  
  .footer-social {
    justify-content: center;
  }
  
  .footer-column {
    text-align: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: var(--space-4);
  }
  
  .footer-legal {
    justify-content: center;
  }
  
  /* Hide desktop elements */
  .hide-mobile {
    display: none !important;
  }
}

/* ============================================
   3. MEDIUM DEVICES - TABLET (768px - 1023px)
   ============================================ */
@media (min-width: 768px) and (max-width: 1023px) {
  /* Grid adjustments */
  .grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-cols-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* Two column layouts */
  .two-col,
  .two-col-content,
  .two-col-content-reverse {
    gap: var(--space-8);
  }
  
  /* Footer grid */
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
  
  /* Stats */
  .stat-value {
    font-size: var(--text-display-2);
  }
}

/* ============================================
   4. LARGE DEVICES - DESKTOP (1024px - 1199px)
   ============================================ */
@media (min-width: 1024px) and (max-width: 1199px) {
  /* Minor adjustments */
  .container {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
  
  /* Footer grid */
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

/* ============================================
   5. EXTRA LARGE DEVICES (1200px and up)
   ============================================ */
@media (min-width: 1200px) {
  /* Full desktop experience */
  .container {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
  
  /* Show desktop elements */
  .show-mobile {
    display: none !important;
  }
}

/* ============================================
   6. VERY LARGE SCREENS (1440px and up)
   ============================================ */
@media (min-width: 1440px) {
  /* Optionally increase max-width or keep centered */
  .container {
    /* Container stays at 1200px max-width, content stays readable */
  }
}

/* ============================================
   7. LANDSCAPE MOBILE
   ============================================ */
@media (max-width: 767px) and (orientation: landscape) {
  /* Reduce vertical padding in landscape */
  .section {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }
  
  /* Hero height adjustment */
  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height-mobile) + var(--space-8));
    padding-bottom: var(--space-8);
  }
}

/* ============================================
   8. PRINT STYLES
   ============================================ */
@media print {
  /* Hide non-essential elements */
  .header,
  .footer,
  .mobile-menu,
  .btn,
  .nav-toggle,
  .theme-toggle,
  .lang-toggle {
    display: none !important;
  }
  
  /* Remove backgrounds */
  .section,
  .card,
  .feature-card {
    background: none !important;
    box-shadow: none !important;
  }
  
  /* Ensure text is readable */
  body {
    font-size: 12pt;
    line-height: 1.5;
    color: #000 !important;
    background: #fff !important;
  }
  
  /* Full width containers */
  .container {
    max-width: 100%;
    padding: 0;
  }
  
  /* Page breaks */
  .section {
    page-break-inside: avoid;
  }
  
  h1, h2, h3 {
    page-break-after: avoid;
  }
}

/* ============================================
   9. HIGH CONTRAST MODE
   ============================================ */
@media (prefers-contrast: high) {
  :root {
    --color-primary: #B8860B;
    --color-text-primary: #000000;
    --color-text-secondary: #333333;
    --color-border-light: #666666;
  }
  
  [data-theme="dark"] {
    --color-primary: #FFD700;
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #CCCCCC;
    --color-border-light: #888888;
  }
  
  .btn,
  .card,
  .form-input {
    border-width: 2px;
  }
}

/* ============================================
   10. TOUCH DEVICE OPTIMIZATIONS
   ============================================ */
@media (hover: none) and (pointer: coarse) {
  /* Larger touch targets */
  .btn {
    min-height: 44px;
  }
  
  .nav-link {
    padding: var(--space-3) var(--space-4);
  }
  
  .form-input,
  .form-select,
  .form-textarea {
    min-height: 44px;
  }
  
  /* Remove hover effects on touch */
  .card:hover,
  .feature-card:hover,
  .btn:hover {
    transform: none;
  }
  
  /* Active states instead */
  .card:active,
  .feature-card:active {
    transform: scale(0.98);
  }
  
  .btn:active {
    transform: scale(0.95);
  }
}

/* ============================================
   11. SPECIFIC COMPONENT RESPONSIVE FIXES
   ============================================ */

/* Navigation responsive */
@media (max-width: 1024px) {
  .nav-menu,
  .nav-auth {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
  }
}

@media (max-width: 768px) {
  .header {
    height: var(--header-height-mobile);
  }
  
  .lang-toggle {
    display: none;
  }
}

/* Hero responsive adjustments */
@media (max-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-content {
    order: 1;
  }
  
  .hero-aside {
    order: 2;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-trust {
    justify-content: center;
  }
}

/* Stats responsive */
@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

/* Price cards responsive */
@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
  }
}

/* Team cards responsive */
@media (max-width: 768px) {
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .team-grid {
    grid-template-columns: 1fr;
  }
}

/* FAQ accordion responsive */
@media (max-width: 768px) {
  .accordion-trigger {
    padding: var(--space-4);
    font-size: var(--text-body);
  }
  
  .accordion-body {
    padding: 0 var(--space-4) var(--space-4);
  }
}