/* ===================================
   Sleepmate Website - Responsive Styles
   Mobile-First Approach with Progressive Enhancement
   ================================= */

/* Small Mobile Adjustments (320px - 374px) */
@media (max-width: 374px) {
  .container {
    padding: 0 var(--mobile-space-sm);
  }
  
  .hero-title {
    font-size: var(--mobile-font-3xl);
  }
  
  .phone-container {
    max-width: 240px;
  }
  
  .features-card {
    padding: var(--mobile-space-md);
  }
  
  .btn {
    padding: 10px var(--mobile-space-md);
    font-size: var(--mobile-font-sm);
  }
}

/* Large Mobile (375px - 767px) - Enhanced mobile experience */
@media (min-width: 375px) and (max-width: 767px) {
  .hero-section {
    padding: var(--mobile-space-3xl) 0;
  }
  
  .phone-container {
    max-width: 300px;
  }
  
  .hero-title {
    font-size: var(--mobile-font-4xl);
  }
  
  .testimonial-card {
    padding: var(--mobile-space-xl);
  }
}

/* Tablet Portrait (768px - 1023px) */
@media (min-width: 768px) {
  /* Hide mobile navigation elements */
  .nav-toggle {
    display: none;
  }
  
  .nav-overlay {
    display: none;
  }
  
  /* Show desktop navigation */
  .nav-menu {
    position: static;
    transform: none;
    background: none;
    padding: 0;
    overflow: visible;
    z-index: auto;
  }
  
  .nav-links {
    flex-direction: row;
    gap: 1.25rem;
  }
  
  .nav-link {
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
    min-height: auto;
    border-radius: 8px;
  }
  
  /* Container adjustments */
  .container {
    padding: 0 var(--space-xl);
    max-width: var(--container-max-width);
  }
  
  /* Header improvements */
  .header {
    height: 80px;
  }
  
  .nav {
    height: 80px;
    padding: 0 var(--space-xl);
  }
  
  main {
    padding-top: 80px;
  }
  
  .logo {
    font-size: var(--font-size-2xl);
  }
  
  /* Hero section improvements */
  .hero-section {
    padding: var(--space-4xl) 0 var(--space-3xl);
  }
  
  .app-icon {
    width: 140px;
    height: 140px;
  }
  
  .hero-title {
    font-size: var(--font-size-5xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-2xl);
  }
  
  /* Features section improvements */
  .features-section {
    padding: var(--space-3xl) 0;
  }
  
  .features-card {
    max-width: 600px;
    padding: var(--space-3xl);
  }
  
  .feature-item {
    margin-bottom: var(--space-xl);
  }
  
  .feature-text {
    font-size: var(--font-size-lg);
  }
  
  /* CTA section improvements */
  .cta-section {
    padding: var(--space-4xl) 0;
  }
  
  .cta-title {
    font-size: var(--font-size-4xl);
  }
  
  .cta-subtitle {
    font-size: var(--font-size-xl);
  }
  
  /* Form improvements */
  .email-signup-form {
    max-width: 500px;
  }
  
  .form-group {
    flex-direction: row;
    align-items: stretch;
  }
  
  .email-input {
    font-size: var(--font-size-lg);
    padding: var(--space-lg) var(--space-xl);
  }
  
  .submit-button {
    font-size: var(--font-size-lg);
    padding: var(--space-lg) var(--space-2xl);
    min-width: 140px;
  }
  
  /* Footer improvements */
  .footer-content {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    text-align: left;
  }
  
  .footer-nav-list {
    gap: var(--space-xl);
  }
}

/* Tablet Landscape & Small Desktop (1024px - 1199px) */
@media (min-width: 1024px) {
  /* Enhanced spacing */
  .hero-section {
    padding: 6rem 0 4rem;
  }
  
  .cta-section {
    padding: 5rem 0;
  }
  
  .features-section {
    padding: 4rem 0;
  }
  
  /* Larger app icon */
  .app-icon {
    width: 160px;
    height: 160px;
  }
  
  /* Enhanced typography */
  .hero-title {
    font-size: 4rem; /* 64px */
  }
  
  .cta-title {
    font-size: 3rem; /* 48px */
  }
  
  /* Better form layout */
  .email-signup-form {
    max-width: 600px;
  }
  
  .email-input {
    min-height: 56px;
    font-size: var(--font-size-xl);
  }
  
  .submit-button {
    min-height: 56px;
    font-size: var(--font-size-xl);
    min-width: 160px;
  }
  
  /* Enhanced features card */
  .features-card {
    max-width: 700px;
  }
  
  /* Footer enhancements */
  .footer {
    padding: var(--space-3xl) 0;
  }
  
  .footer-logo-icon {
    width: 28px;
    height: 28px;
  }
}

/* Large Desktop (1200px+) */
@media (min-width: 1200px) {
  /* Maximum container width reached */
  .container {
    padding: 0 var(--space-2xl);
  }
  
  /* Enhanced navigation spacing for large screens */
  .nav-links {
    gap: 1.75rem;
  }
  
  .nav-links a {
    padding: 0.5rem 1rem;
    font-size: 1rem;
  }
  
  /* Enhanced hero section */
  .hero-section {
    padding: 8rem 0 5rem;
  }
  
  .hero-content {
    max-width: 800px;
  }
  
  .app-icon {
    width: 180px;
    height: 180px;
  }
  
  .hero-title {
    font-size: 5rem; /* 80px */
    margin-bottom: var(--space-lg);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-3xl);
  }
  
  /* Enhanced sections */
  .cta-section {
    padding: 6rem 0;
  }
  
  .cta-content {
    max-width: 800px;
  }
  
  .features-section {
    padding: 5rem 0;
  }
  
  .features-card {
    max-width: 800px;
    padding: var(--space-4xl);
  }
  
  /* Enhanced form */
  .email-signup-form {
    max-width: 700px;
  }
  
  .form-group {
    gap: var(--space-lg);
  }
  
  .email-input {
    min-height: 64px;
    font-size: var(--font-size-2xl);
    padding: var(--space-xl) var(--space-2xl);
  }
  
  .submit-button {
    min-height: 64px;
    font-size: var(--font-size-2xl);
    padding: var(--space-xl) var(--space-3xl);
    min-width: 180px;
  }
}

/* Extra Large Desktop (1400px+) */
@media (min-width: 1400px) {
  .hero-section {
    padding: 10rem 0 6rem;
  }
  
  .cta-section {
    padding: 8rem 0;
  }
  
  .features-section {
    padding: 6rem 0;
  }
}

/* High DPI / Retina Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .app-icon,
  .logo-icon,
  .footer-logo-icon {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}

/* Landscape Mobile Orientation */
@media (max-width: 767px) and (orientation: landscape) {
  .hero-section {
    padding: var(--space-2xl) 0;
  }
  
  .cta-section {
    padding: var(--space-2xl) 0;
  }
  
  .features-section {
    padding: var(--space-xl) 0;
  }
  
  .app-icon {
    width: 80px;
    height: 80px;
  }
  
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .features-card {
    padding: var(--space-lg);
  }
}

/* Print Styles */
@media print {
  * {
    background: transparent !important;
    color: black !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.5;
  }
  
  .header,
  .footer {
    display: none;
  }
  
  .hero-section,
  .features-section,
  .cta-section {
    padding: 1rem 0;
  }
  
  .container {
    max-width: none;
    padding: 0;
  }
  
  .email-signup-form {
    display: none;
  }
  
  a[href]:after {
    content: " (" attr(href) ")";
  }
  
  .app-icon {
    width: 60px;
    height: 60px;
  }
}

/* Hover Support Detection */
@media (hover: hover) {
  .submit-button:hover {
    background: linear-gradient(135deg, var(--button-hover) 0%, #4a42b8 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
  }
  
  .card:hover {
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-lg);
  }
  
  .nav-link:hover,
  .footer-link:hover {
    color: var(--text-primary);
  }
}

/* No Hover Support (Touch Devices) */
@media (hover: none) {
  .submit-button:active {
    background: linear-gradient(135deg, var(--button-hover) 0%, #4a42b8 100%);
    transform: scale(0.98);
  }
  
  .nav-link:active,
  .footer-link:active {
    color: var(--text-primary);
  }
}

/* Dark Mode Support (Future Enhancement) */
@media (prefers-color-scheme: dark) {
  /* Already optimized for dark theme */
  /* This section reserved for light mode toggle if needed */
}

/* Reduced Motion Preferences */
@media (prefers-reduced-motion: reduce) {
  .submit-button,
  .email-input,
  .card,
  .nav-link,
  .footer-link {
    transition: none;
  }
  
  .fade-in,
  .slide-up,
  .scale-in {
    animation: none;
  }
  
  .spinner {
    animation: none;
  }
  
  .button-loading {
    animation: none;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  .features-card,
  .email-input {
    border-width: 2px;
  }
  
  .submit-button {
    border: 2px solid var(--text-primary);
  }
  
  .nav-link:focus,
  .footer-link:focus,
  .submit-button:focus,
  .email-input:focus {
    outline-width: 3px;
  }
}