/**
 * High Leverage Humans - Responsive CSS
 * Mobile-first responsive design with advanced breakpoints
 * Optimized for all devices and screen sizes
 */

/* ================================
   BASE MOBILE STYLES (320px+)
   ================================ */

/* Already defined in main.css as mobile-first approach */

/* ================================
   SMALL MOBILE (375px+)
   ================================ */

@media (min-width: 375px) {
  .container {
    padding-left: var(--space-5);
    padding-right: var(--space-5);
  }
  
  .hero-title {
    font-size: clamp(2.5rem, 6vw, 7rem);
  }
  
  .btn {
    padding: var(--space-4) var(--space-6);
  }
}

/* ================================
   MOBILE LANDSCAPE (480px+)
   ================================ */

@media (min-width: 480px) {
  .hero {
    padding: var(--space-16) var(--space-4);
  }
  
  .hero-cta {
    flex-direction: row;
    gap: var(--space-6);
  }
  
  .nav-menu {
    gap: var(--space-6);
  }
  
  .feature-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
  }
  
  .card {
    padding: var(--space-6);
  }
}

/* ================================
   SMALL TABLETS (640px+)
   ================================ */

@media (min-width: 640px) {
  .container {
    max-width: var(--container-sm);
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
  
  /* Typography Adjustments */
  .hero-title {
    font-size: clamp(3.5rem, 7vw, 8rem);
    line-height: 0.85;
  }
  
  .hero-subtitle {
    font-size: var(--text-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
  }
  
  /* Navigation */
  .nav-container {
    padding: var(--space-4) var(--space-6);
  }
  
  .nav-menu {
    gap: var(--space-8);
  }
  
  .nav-link {
    font-size: var(--text-base);
  }
  
  /* Grid System */
  .grid-sm-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .grid-sm-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-sm-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-sm-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  
  /* Features */
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
  }
  
  .feature-card {
    padding: var(--space-6);
  }
  
  .feature-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--space-4);
  }
  
  /* Buttons */
  .btn-sm {
    padding: var(--space-3) var(--space-5);
  }
  
  .btn {
    padding: var(--space-4) var(--space-8);
  }
  
  .btn-lg {
    padding: var(--space-5) var(--space-10);
  }
  
  /* Forms */
  .form-input {
    padding: var(--space-4) var(--space-5);
  }
  
  /* Spacing */
  .section {
    padding: var(--space-20) 0;
  }
  
  .py-sm-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }
  .py-sm-12 { padding-top: var(--space-12); padding-bottom: var(--space-12); }
  .py-sm-16 { padding-top: var(--space-16); padding-bottom: var(--space-16); }
}

/* ================================
   TABLETS (768px+)
   ================================ */

@media (min-width: 768px) {
  .container {
    max-width: var(--container-md);
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
  
  /* Typography */
  .hero-title {
    font-size: clamp(4rem, 8vw, 9rem);
  }
  
  .section-title {
    font-size: var(--text-4xl);
  }
  
  /* Navigation */
  .nav-toggle {
    display: none;
  }
  
  .nav-menu {
    display: flex;
    position: static;
    flex-direction: row;
    background: transparent;
    box-shadow: none;
    padding: 0;
    margin: 0;
    transform: none;
    opacity: 1;
    visibility: visible;
  }
  
  /* Grid System */
  .grid-md-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .grid-md-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-md-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-md-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .grid-md-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .grid-md-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  
  /* Features */
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-10);
  }
  
  .feature-card {
    padding: var(--space-8);
  }
  
  .feature-icon {
    width: 80px;
    height: 80px;
    margin-bottom: var(--space-6);
  }
  
  /* Cards */
  .card {
    padding: var(--space-8);
  }
  
  /* Hero Layout */
  .hero {
    padding: var(--space-24) var(--space-8);
  }
  
  .hero-content {
    max-width: 900px;
  }
  
  /* Footer */
  .footer-content {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-10);
  }
  
  /* Utilities */
  .text-md-left { text-align: left; }
  .text-md-center { text-align: center; }
  .text-md-right { text-align: right; }
  
  .flex-md-row { flex-direction: row; }
  .flex-md-col { flex-direction: column; }
  
  .justify-md-start { justify-content: flex-start; }
  .justify-md-center { justify-content: center; }
  .justify-md-end { justify-content: flex-end; }
  .justify-md-between { justify-content: space-between; }
  
  .items-md-start { align-items: flex-start; }
  .items-md-center { align-items: center; }
  .items-md-end { align-items: flex-end; }
  
  /* Spacing */
  .py-md-12 { padding-top: var(--space-12); padding-bottom: var(--space-12); }
  .py-md-16 { padding-top: var(--space-16); padding-bottom: var(--space-16); }
  .py-md-20 { padding-top: var(--space-20); padding-bottom: var(--space-20); }
  .py-md-24 { padding-top: var(--space-24); padding-bottom: var(--space-24); }
  
  .px-md-8 { padding-left: var(--space-8); padding-right: var(--space-8); }
  .px-md-10 { padding-left: var(--space-10); padding-right: var(--space-10); }
  .px-md-12 { padding-left: var(--space-12); padding-right: var(--space-12); }
}

/* ================================
   LARGE TABLETS (1024px+)
   ================================ */

@media (min-width: 1024px) {
  .container {
    max-width: var(--container-lg);
  }
  
  /* Typography */
  .hero-title {
    font-size: clamp(5rem, 9vw, 10rem);
  }
  
  .section-title {
    font-size: var(--text-5xl);
  }
  
  /* Navigation */
  .nav-container {
    padding: var(--space-6) var(--space-8);
  }
  
  .nav-menu {
    gap: var(--space-10);
  }
  
  /* Grid System */
  .grid-lg-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .grid-lg-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-lg-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-lg-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .grid-lg-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .grid-lg-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  
  /* Features */
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-12);
  }
  
  .feature-card {
    padding: var(--space-10);
  }
  
  .feature-icon {
    width: 90px;
    height: 90px;
  }
  
  /* Hero */
  .hero {
    padding: var(--space-32) var(--space-8);
  }
  
  .hero-content {
    max-width: 1100px;
  }
  
  /* Sections */
  .section {
    padding: var(--space-32) 0;
  }
  
  /* Footer */
  .footer-content {
    grid-template-columns: repeat(4, 1fr);
  }
  
  /* Hover Effects (Only on larger screens) */
  .lg-hover-lift:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 230, 255, 0.2);
  }
  
  .lg-hover-glow:hover {
    text-shadow: 
      0 0 10px var(--color-neon-blue),
      0 0 20px var(--color-neon-blue),
      0 0 30px var(--color-neon-blue);
  }
  
  /* Utilities */
  .text-lg-left { text-align: left; }
  .text-lg-center { text-align: center; }
  .text-lg-right { text-align: right; }
  
  .flex-lg-row { flex-direction: row; }
  .flex-lg-col { flex-direction: column; }
  
  .block-lg { display: block; }
  .hidden-lg { display: none; }
  
  /* Spacing */
  .py-lg-16 { padding-top: var(--space-16); padding-bottom: var(--space-16); }
  .py-lg-20 { padding-top: var(--space-20); padding-bottom: var(--space-20); }
  .py-lg-24 { padding-top: var(--space-24); padding-bottom: var(--space-24); }
  .py-lg-32 { padding-top: var(--space-32); padding-bottom: var(--space-32); }
}

/* ================================
   DESKTOP (1280px+)
   ================================ */

@media (min-width: 1280px) {
  .container {
    max-width: var(--container-xl);
  }
  
  /* Typography */
  .hero-title {
    font-size: clamp(6rem, 10vw, 12rem);
  }
  
  .section-title {
    font-size: var(--text-6xl);
  }
  
  /* Grid System */
  .grid-xl-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .grid-xl-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-xl-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-xl-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .grid-xl-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .grid-xl-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  
  /* Features */
  .feature-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-12);
  }
  
  /* Hero */
  .hero-content {
    max-width: 1200px;
  }
  
  /* Advanced Layouts */
  .two-column-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
  }
  
  .sidebar-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--space-12);
  }
  
  /* Utilities */
  .text-xl-left { text-align: left; }
  .text-xl-center { text-align: center; }
  .text-xl-right { text-align: right; }
  
  .flex-xl-row { flex-direction: row; }
  .flex-xl-col { flex-direction: column; }
  
  .block-xl { display: block; }
  .hidden-xl { display: none; }
}

/* ================================
   LARGE DESKTOP (1536px+)
   ================================ */

@media (min-width: 1536px) {
  .container {
    max-width: var(--container-2xl);
  }
  
  /* Typography */
  .hero-title {
    font-size: clamp(7rem, 12vw, 14rem);
  }
  
  /* Grid System */
  .grid-2xl-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .grid-2xl-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-2xl-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-2xl-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .grid-2xl-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .grid-2xl-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  
  /* Features */
  .feature-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-16);
  }
  
  /* Enhanced Layouts */
  .three-column-layout {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: var(--space-16);
  }
  
  /* Utilities */
  .text-2xl-left { text-align: left; }
  .text-2xl-center { text-align: center; }
  .text-2xl-right { text-align: right; }
  
  .flex-2xl-row { flex-direction: row; }
  .flex-2xl-col { flex-direction: column; }
  
  .block-2xl { display: block; }
  .hidden-2xl { display: none; }
}

/* ================================
   MOBILE MENU STYLES
   ================================ */

@media (max-width: 767px) {
  .nav-toggle {
    display: flex;
    z-index: var(--z-modal);
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(17, 17, 17, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    padding: var(--space-20) var(--space-6) var(--space-6);
    gap: var(--space-6);
    transition: right var(--transition-normal);
    z-index: var(--z-modal);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-menu::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
      radial-gradient(circle at 50% 0%, rgba(0, 230, 255, 0.1) 0%, transparent 50%),
      radial-gradient(circle at 0% 100%, rgba(255, 0, 79, 0.1) 0%, transparent 50%);
    z-index: -1;
  }
  
  .nav-link {
    width: 100%;
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
  }
  
  .nav-link:hover {
    background: rgba(0, 230, 255, 0.1);
    transform: translateX(10px);
  }
  
  /* Mobile Menu Overlay */
  .nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: calc(var(--z-modal) - 1);
  }
  
  .nav-overlay.active {
    opacity: 1;
    visibility: visible;
  }
  
  /* Mobile Hero Adjustments */
  .hero {
    padding: var(--space-20) var(--space-4) var(--space-16);
    min-height: 90vh;
  }
  
  .hero-title {
    font-size: clamp(2rem, 8vw, 4rem);
    line-height: 1;
    margin-bottom: var(--space-4);
  }
  
  .hero-subtitle {
    font-size: var(--text-lg);
    margin-bottom: var(--space-6);
  }
  
  .hero-cta {
    flex-direction: column;
    gap: var(--space-4);
    align-items: stretch;
  }
  
  .hero-cta .btn {
    width: 100%;
    justify-content: center;
  }
  
  /* Mobile Feature Grid */
  .feature-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .feature-card {
    padding: var(--space-6);
    text-align: center;
  }
  
  /* Mobile Forms */
  .form-input {
    font-size: 16px; /* Prevents zoom on iOS */
  }
  
  /* Mobile Footer */
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    text-align: center;
  }
}

/* ================================
   TOUCH DEVICE OPTIMIZATIONS
   ================================ */

@media (hover: none) and (pointer: coarse) {
  /* Disable hover effects on touch devices */
  .hover-lift:hover,
  .hover-glow:hover,
  .hover-electric:hover,
  .hover-rotate:hover {
    transform: none;
    text-shadow: none;
    box-shadow: none;
  }
  
  /* Larger touch targets */
  .btn {
    min-height: 48px;
    padding: var(--space-4) var(--space-6);
  }
  
  .nav-link {
    min-height: 48px;
    padding: var(--space-4) var(--space-5);
  }
  
  /* Remove hover animations */
  .card:hover,
  .feature-card:hover {
    transform: none;
    box-shadow: none;
    border-color: rgba(255, 255, 255, 0.1);
  }
  
  /* Focus states for touch */
  .btn:focus,
  .nav-link:focus,
  .form-input:focus {
    outline: 3px solid var(--color-neon-blue);
    outline-offset: 2px;
  }
}

/* ================================
   HIGH DPI DISPLAYS
   ================================ */

@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  /* Sharper borders for high DPI */
  .card,
  .btn,
  .form-input {
    border-width: 0.5px;
  }
  
  /* Crisper text rendering */
  body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
  }
}

/* ================================
   LANDSCAPE ORIENTATION
   ================================ */

@media (orientation: landscape) and (max-height: 600px) {
  .hero {
    min-height: 100vh;
    padding: var(--space-12) var(--space-4);
  }
  
  .hero-title {
    font-size: clamp(2.5rem, 6vh, 4rem);
    margin-bottom: var(--space-3);
  }
  
  .hero-subtitle {
    font-size: var(--text-base);
    margin-bottom: var(--space-4);
  }
  
  .section {
    padding: var(--space-16) 0;
  }
}

/* ================================
   PRINT OPTIMIZATIONS
   ================================ */

@media print {
  .navbar,
  .nav-toggle,
  .btn,
  .footer,
  .hero-cta {
    display: none !important;
  }
  
  .hero {
    min-height: auto;
    padding: var(--space-8) 0;
  }
  
  .section {
    padding: var(--space-12) 0;
    break-inside: avoid;
  }
  
  .card,
  .feature-card {
    border: 1px solid #ccc;
    background: white;
    color: black;
    break-inside: avoid;
    margin-bottom: var(--space-4);
  }
  
  .hero-title,
  .section-title {
    color: black !important;
    page-break-after: avoid;
  }
}

/* ================================
   ACCESSIBILITY ENHANCEMENTS
   ================================ */

/* Focus-visible for better keyboard navigation */
@media (prefers-reduced-motion: no-preference) {
  .focus-visible:focus-visible {
    transition: outline var(--transition-fast);
  }
}

/* Increased contrast for better readability */
@media (prefers-contrast: high) {
  :root {
    --color-gray-300: #e5e5e5;
    --color-gray-400: #d0d0d0;
  }
  
  .card,
  .feature-card {
    border-width: 2px;
    border-color: var(--color-white);
  }
}

/* Reduced transparency for better readability */
@media (prefers-reduced-transparency: reduce) {
  .card,
  .feature-card,
  .navbar,
  .footer {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: var(--color-charcoal);
  }
  
  .nav-menu {
    background: var(--color-charcoal);
  }
}

/* ================================
   PERFORMANCE OPTIMIZATIONS
   ================================ */

/* Prevent layout shifts */
.hero,
.section,
.navbar {
  contain: layout style paint;
}

/* Optimize rendering */
.parallax,
.animate-float,
.animate-pulse {
  contain: strict;
  will-change: transform;
}

/* Reduce repaint areas */
.card::before,
.feature-card::before {
  contain: layout style paint;
}