/* ===== RESPONSIVE BREAKPOINTS ===== */
/* Mobile First Approach */

/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) {
  .container {
    padding: 0 var(--space-6);
  }
  
  .hero-actions {
    flex-direction: row;
  }
  
  .nav-menu {
    gap: var(--space-3);
  }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
  :root {
    --font-size-base: 1.05rem;
  }
  
  .container {
    padding: 0 var(--space-8);
  }
  
  .header-inner {
    gap: var(--space-8);
  }
  
  .logo-title {
    font-size: var(--font-size-2xl);
  }
  
  .nav-menu {
    gap: var(--space-4);
  }
  
  .nav-link {
    padding: var(--space-3) var(--space-5);
  }
  
  .footer-sections {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .hero {
    padding: var(--space-20) 0;
  }
  
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
  :root {
    --font-size-base: 1.1rem;
  }
  
  .footer-sections {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
}

/* ===== MOBILE NAVIGATION ===== */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  gap: 4px;
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

/* Mobile styles (max-width: 767px) */
@media (max-width: 767px) {
  .mobile-menu-toggle {
    display: flex;
  }
  
  .navigation {
    position: fixed;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--primary-color);
    box-shadow: var(--shadow-xl);
    transition: transform var(--transition-normal);
    z-index: 999;
  }
  
  .navigation.active {
    transform: translateY(-100%);
  }
  
  .nav-menu {
    flex-direction: column;
    padding: var(--space-4);
    gap: 0;
  }
  
  .nav-item {
    width: 100%;
  }
  
  .nav-link {
    padding: var(--space-4);
    border-radius: var(--radius-md);
    justify-content: flex-start;
  }
  
  .header-inner {
    flex-wrap: wrap;
  }
  
  .logo {
    flex: 1;
  }
  
  /* Mobile menu animation */
  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }
  
  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }
}

/* ===== MOBILE DROPDOWN NAVIGATION ===== */
@media (max-width: 768px) {
    /* Desktop navigation hide */
    .nav-menu {
        display: none !important;
    }
    
    /* Show mobile toggle */
    .mobile-menu-toggle {
        display: block !important;
    }
    
    /* Mobile dropdown styles */
    .mobile-dropdown {
        display: block;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all 0.3s ease;
    }
    
    .mobile-dropdown.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .mobile-dropdown-menu {
        padding: 0;
    }
    
    .mobile-dropdown-item {
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .mobile-dropdown-link {
        padding: 1rem 1.5rem;
        color: white;
        text-decoration: none;
        display: flex;
        align-items: center;
        gap: 0.75rem;
        transition: background 0.2s;
    }
    
    .mobile-dropdown-link:hover {
        background: rgba(255,255,255,0.1);
    }
    
    /* Header adjustments */
    .header {
        padding: 0.75rem 0;
    }
    
    .header-inner {
        flex-wrap: wrap;
    }
    
    .logo {
        flex: 1;
    }
    
    /* Adjust container padding */
    .container {
        padding: 0 1rem;
    }
}

/* Hide mobile dropdown on desktop */
@media (min-width: 769px) {
    .mobile-dropdown {
        display: none !important;
    }
    
    .mobile-menu-toggle {
        display: none !important;
    }
}

/* ===== TOUCH DEVICE OPTIMIZATIONS ===== */
@media (hover: none) and (pointer: coarse) {
    .mobile-dropdown-link {
        padding: 1.25rem 1.5rem; /* Larger tap target */
    }
    
    .mobile-menu-toggle {
        padding: 0.75rem;
    }
}

/* ===== VERY SMALL SCREENS ===== */
@media (max-width: 320px) {
    .mobile-dropdown-link {
        padding: 1rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .mobile-dropdown-link i {
        font-size: 0.9rem;
    }
    
    .logo a {
        font-size: 1.1rem;
    }
}

/* ===== DARK MODE SUPPORT FOR MOBILE ===== */
@media (prefers-color-scheme: dark) {
    .mobile-dropdown {
        background: var(--gray-100);
        border-top: 1px solid var(--gray-300);
    }
    
    .mobile-dropdown-item {
        border-bottom-color: var(--gray-300);
    }
    
    .mobile-dropdown-link {
        color: var(--gray-600);
    }
    
    .mobile-dropdown-link:hover {
        background: var(--gray-200);
    }
}

/* ===== TABLET OPTIMIZATIONS ===== */
@media (max-width: 1024px) and (min-width: 768px) {
  .hero-content {
    padding: 0 var(--space-8);
  }
  
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
  
  .footer-sections {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
  }
}

/* ===== TOUCH DEVICE OPTIMIZATIONS ===== */
@media (hover: none) and (pointer: coarse) {
  .nav-link:hover {
    background: transparent;
    transform: none;
  }
  
  .btn:hover:not(:disabled) {
    transform: none;
  }
  
  .card:hover {
    transform: none;
  }
  
  .feature-card:hover {
    transform: none;
  }
  
  .back-to-top:hover {
    transform: none;
  }
  
  /* Increase tap targets for mobile */
  .nav-link {
    padding: var(--space-4) var(--space-5);
  }
  
  .btn {
    padding: var(--space-4) var(--space-6);
  }
  
  .social-link {
    width: 44px;
    height: 44px;
  }
}

/* ===== HIGH DPI DISPLAYS ===== */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .hero::before {
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 2000 2000"><polygon fill="rgba(255,255,255,0.05)" points="0,2000 2000,0 2000,2000"/></svg>');
  }
}

/* ===== DARK MODE SUPPORT ===== */
@media (prefers-color-scheme: dark) {
  :root {
    --gray-50: #0c0c0c;
    --gray-100: #1e272e;
    --gray-200: #2f3542;
    --gray-300: #57606f;
    --gray-400: #747d8c;
    --gray-500: #a4b0be;
    --gray-600: #ced6e0;
    --gray-700: #dfe4ea;
    --gray-800: #f1f2f6;
    --gray-900: #f8f9fa;
  }
  
  body {
    background: var(--gray-50);
    color: var(--gray-600);
  }
  
  .card {
    background: var(--gray-100);
    border-color: var(--gray-200);
  }
  
  .card-header,
  .card-footer {
    background: var(--gray-200);
    border-color: var(--gray-300);
  }
  
  .form-control {
    background: var(--gray-100);
    border-color: var(--gray-300);
    color: var(--gray-600);
  }
  
  .form-control:focus {
    background: var(--gray-200);
  }
}

/* ===== REDUCED MOTION ===== */
@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;
  }
  
  .card:hover,
  .feature-card:hover,
  .btn:hover:not(:disabled),
  .back-to-top:hover,
  .nav-link:hover {
    transform: none !important;
  }
}

/* ===== LARGE TEXT ZOOM SUPPORT ===== */
@media (min-width: 1200px) and (min-height: 800px) {
  :root {
    --font-size-base: 1.125rem;
  }
}

/* ===== PRINT OPTIMIZATIONS ===== */
@media print {
  .container {
    max-width: none;
    padding: 0;
  }
  
  .header,
  .footer,
  .back-to-top,
  .mobile-menu-toggle {
    display: none !important;
  }
  
  .main-content {
    padding: 0 !important;
    min-height: auto !important;
  }
  
  .card {
    box-shadow: none !important;
    border: 1px solid var(--gray-400) !important;
    break-inside: avoid;
  }
  
  .btn {
    background: var(--gray-400) !important;
    color: var(--gray-900) !important;
    border: 1px solid var(--gray-600) !important;
  }
  
  a {
    color: var(--gray-900) !important;
    text-decoration: underline !important;
  }
  
  .hero {
    background: var(--gray-400) !important;
    color: var(--gray-900) !important;
    padding: var(--space-8) 0 !important;
  }
}

/* ===== ORIENTATION SPECIFIC ===== */
@media (max-width: 767px) and (orientation: landscape) {
  .header {
    position: static;
  }
  
  .navigation {
    max-height: 60vh;
    overflow-y: auto;
  }
  
  .hero {
    padding: var(--space-12) 0;
  }
}

/* ===== VERY SMALL SCREENS ===== */
@media (max-width: 320px) {
  .container {
    padding: 0 var(--space-3);
  }
  
  .logo-title {
    font-size: var(--font-size-lg);
  }
  
  .hero-title {
    font-size: var(--font-size-2xl);
  }
  
  .btn {
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-sm);
  }
  
  .feature-grid,
  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
}

/* ===== FOLDABLE DEVICES ===== */
@media (max-width: 359px) and (max-height: 739px) {
  .header {
    padding: var(--space-3) 0;
  }
  
  .main-content {
    padding: var(--space-6) 0;
  }
  
  .hero {
    padding: var(--space-8) 0;
  }
}