/* Responsive Design - Mobile First Approach */

/* Large Desktop (1440px+) */
@media (min-width: 1440px) {
  .hero-title {
    font-size: 3.5rem;
  }
  
  .section-header h2 {
    font-size: 2.75rem;
  }
  
  .container {
    max-width: 1400px;
  }
}

/* Desktop (1024px - 1439px) */
@media (max-width: 1439px) {
  .hero-title {
    font-size: var(--font-size-4xl);
  }
}

/* Tablet (768px - 1023px) */
@media (max-width: 1023px) {
  /* Navigation */
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: var(--white);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: var(--spacing-4xl);
    transition: left var(--transition-normal);
    box-shadow: 0 4px 20px var(--shadow-light);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-toggle.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  /* Hero Section */
  .hero {
    padding: 120px 0 var(--spacing-3xl);
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-3xl);
    text-align: center;
  }
  
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .hero-features {
    justify-content: center;
    align-items: center;
  }
  
  /* Benefits Grid */
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
  }
  
  /* How It Works */
  .steps-container {
    flex-direction: column;
    gap: var(--spacing-2xl);
  }
  
  .step-connector {
    width: 2px;
    height: 60px;
    margin: var(--spacing-md) 0;
  }
  
  .step-connector::after {
    top: auto;
    bottom: -6px;
    left: -4px;
    right: auto;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 8px solid var(--primary-red-light);
    border-bottom: none;
  }
  
  /* Footer */
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    text-align: center;
  }
  
  .footer-links {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Mobile Large (480px - 767px) */
@media (max-width: 767px) {
  /* Typography adjustments */
  .hero-title {
    font-size: var(--font-size-2xl);
    line-height: 1.2;
  }
  
  .hero-subtitle {
    font-size: var(--font-size-base);
  }
  
  .section-header h2 {
    font-size: var(--font-size-2xl);
  }
  
  .section-header p {
    font-size: var(--font-size-base);
  }
  
  /* Spacing adjustments */
  .hero {
    padding: 100px 0 var(--spacing-2xl);
  }
  
  .section-header {
    margin-bottom: var(--spacing-2xl);
  }
  
  .benefits,
  .how-it-works,
  .faq,
  .pricing {
    padding: var(--spacing-2xl) 0;
  }
  
  /* Benefits Grid */
  .benefits-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .benefit-card {
    padding: var(--spacing-lg);
  }
  
  .benefit-icon {
    width: 60px;
    height: 60px;
    font-size: var(--font-size-lg);
  }
  
  /* Form adjustments */
  .form-card {
    padding: var(--spacing-lg);
  }
  
  .form-card h3 {
    font-size: var(--font-size-lg);
  }
  
  /* How It Works */
  .step {
    max-width: 280px;
    margin: 0 auto;
  }
  
  .step-number {
    width: 50px;
    height: 50px;
    font-size: var(--font-size-lg);
  }
  
  /* Footer */
  .footer {
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
  }
  
  .footer-links {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .footer-section {
    text-align: center;
  }
}

/* Mobile Small (320px - 479px) */
@media (max-width: 479px) {
  /* Container padding */
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .nav-container {
    padding: 0 var(--spacing-md);
  }
  
  .hero-container {
    padding: 0 var(--spacing-md);
  }
  
  /* Typography */
  .hero-title {
    font-size: var(--font-size-xl);
  }
  
  .section-header h2 {
    font-size: var(--font-size-xl);
  }
  
  /* Navigation */
  .nav-logo {
    font-size: var(--font-size-lg);
  }
  
  .nav-logo i {
    font-size: var(--font-size-xl);
  }
  
  /* Hero */
  .hero-content {
    gap: var(--spacing-xl);
  }
  
  .hero-features {
    gap: var(--spacing-sm);
  }
  
  .feature-item {
    font-size: var(--font-size-sm);
  }
  
  /* Form */
  .form-card {
    padding: var(--spacing-md);
  }
  
  .input-wrapper input {
    padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-sm) 2rem;
  }
  
  .input-wrapper i {
    left: var(--spacing-sm);
  }
  
  /* Buttons */
  .btn-primary,
  .btn-secondary {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    min-height: 44px;
  }
  
  /* Benefits */
  .benefit-card {
    padding: var(--spacing-md);
  }
  
  .benefit-icon {
    width: 50px;
    height: 50px;
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-md);
  }
  
  .benefit-card h3 {
    font-size: var(--font-size-lg);
  }
  
  .benefit-card p {
    font-size: var(--font-size-sm);
  }
  
  /* Steps */
  .step-number {
    width: 40px;
    height: 40px;
    font-size: var(--font-size-base);
  }
  
  .step-content h3 {
    font-size: var(--font-size-base);
  }
  
  .step-content p {
    font-size: var(--font-size-xs);
  }
  
  /* FAQ */
  .faq-question {
    padding: var(--spacing-md);
  }
  
  .faq-question h3 {
    font-size: var(--font-size-base);
  }
  
  .faq-item.active .faq-answer {
    padding: var(--spacing-md);
  }
  
  /* Footer */
  .footer-brand {
    max-width: 100%;
  }
  
  .footer-logo {
    justify-content: center;
    font-size: var(--font-size-lg);
  }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  /* Remove hover effects on touch devices */
  .benefit-card:hover,
  .btn-primary:hover,
  .btn-secondary:hover {
    transform: none;
  }
  
  /* Increase touch targets */
  .nav-link {
    padding: var(--spacing-md);
  }
  
  .faq-question {
    min-height: 60px;
  }
  
  .checkbox-label {
    min-height: 44px;
  }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  /* Ensure crisp rendering on retina displays */
  .nav-logo i,
  .benefit-icon,
  .step-number {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .bg-shape {
    animation: none;
  }
  
  .scroll-animate {
    opacity: 1;
    transform: none;
  }
}

/* Dark mode support (if user prefers) */
@media (prefers-color-scheme: dark) {
  /* Keep the light theme as it's YouTube-inspired and brand-specific */
  /* This ensures consistent branding regardless of user preference */
}

/* Print styles */
@media print {
  .navbar,
  .hero-background,
  .btn-primary,
  .btn-secondary {
    display: none;
  }
  
  .hero {
    padding: var(--spacing-lg) 0;
  }
  
  .section-header h2 {
    color: #000;
  }
  
  .benefit-card,
  .faq-item {
    break-inside: avoid;
  }
}

/* Landscape orientation on mobile */
@media (max-width: 767px) and (orientation: landscape) {
  .hero {
    padding: 80px 0 var(--spacing-xl);
  }
  
  .nav-menu {
    height: calc(100vh - 70px);
    padding-top: var(--spacing-xl);
  }
  
  .hero-content {
    gap: var(--spacing-xl);
  }
}

/* Very small screens (Galaxy Fold, etc.) */
@media (max-width: 280px) {
  .hero-title {
    font-size: var(--font-size-lg);
  }
  
  .form-card {
    padding: var(--spacing-sm);
  }
  
  .benefit-card {
    padding: var(--spacing-sm);
  }
  
  .step {
    max-width: 200px;
  }
}