/**
 * SheetCleaner Pro - Responsive Design
 * Mobile-first responsive breakpoints and optimizations
 */

/* Breakpoint Variables (for reference) */
/*
  xs: 0px (default)
  sm: 576px
  md: 768px
  lg: 992px
  xl: 1200px
  2xl: 1400px
*/

/* Base Mobile Styles (Already in main.css) */
/* All styles are mobile-first by default */

/* Small devices (landscape phones, 576px and up) */
@media (max-width: 575.98px) {
  /* Container adjustments */
  .container {
    padding: 0 var(--spacing-md);
  }
  
  /* Typography scaling */
  .hero-title {
    font-size: 2rem;
    line-height: 1.2;
  }
  
  .section-title {
    font-size: var(--font-size-3xl);
  }
  
  .section-subtitle {
    font-size: var(--font-size-lg);
  }
  
  /* Navigation mobile styles */
  .nav-container {
    padding: 0 var(--spacing-md);
    gap: var(--spacing-lg);
  }
  
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--white);
    flex-direction: column;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: var(--z-dropdown);
  }
  
  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .nav-actions {
    gap: var(--spacing-sm);
    margin-left: var(--spacing-md);
  }
  
  /* Hero section mobile */
  .hero {
    padding: 100px 0 var(--spacing-3xl);
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    text-align: center;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
  }
  
  .hero-stats {
    justify-content: center;
    gap: var(--spacing-lg);
  }
  
  /* Features mobile */
  .features-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  .showcase-tabs {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .tab-btn {
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  .before-after {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .arrow {
    transform: rotate(90deg);
  }
  
  /* Pricing mobile */
  .pricing-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .pricing-card.popular {
    transform: none;
  }
  
  .faq-grid {
    grid-template-columns: 1fr;
  }
  
  /* Steps mobile */
  .steps {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }
  
  /* Testimonials mobile */
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  /* Footer mobile */
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }
  
  .footer-bottom-content {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
  
  /* Modal mobile */
  .modal-content {
    width: 95%;
    margin: var(--spacing-lg);
    padding: var(--spacing-lg);
  }
  
  /* Button mobile */
  .btn-large {
    width: 100%;
    justify-content: center;
  }
  
  /* Form mobile */
  .form-group {
    margin-bottom: var(--spacing-md);
  }
  
  /* Floating cards mobile */
  .floating-cards {
    display: none;
  }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 576px) and (max-width: 767.98px) {
  /* Container adjustments */
  .container {
    padding: 0 var(--spacing-lg);
  }
  
  /* Hero adjustments */
  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-3xl);
  }
  
  .hero-actions {
    flex-direction: row;
    justify-content: center;
  }
  
  /* Features adjustments */
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .showcase-tabs {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  /* Pricing adjustments */
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .faq-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* Steps adjustments */
  .steps {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-3xl);
  }
  
  /* Footer adjustments */
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 768px) and (max-width: 991.98px) {
  /* Navigation adjustments */
  .nav-container {
    padding: 0 var(--spacing-xl);
  }
  
  /* Hero adjustments */
  .hero-content {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
  }
  
  /* Features adjustments */
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* Pricing adjustments */
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .faq-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* Steps adjustments */
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
  
  /* Testimonials adjustments */
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 992px) {
  /* All default styles apply */
  
  /* Show navigation menu */
  .nav-toggle {
    display: none;
  }
  
  .nav-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    background: none;
    box-shadow: none;
    flex-direction: row;
    padding: 0;
    gap: var(--spacing-lg);
  }
  
  .nav-container {
    gap: var(--spacing-3xl);
  }
  
  .nav-actions {
    margin-left: var(--spacing-2xl);
  }
  
  /* Enhanced hover effects on larger screens */
  .feature-card:hover {
    transform: translateY(-8px);
  }
  
  .testimonial-card:hover {
    transform: translateY(-6px);
  }
  
  /* Show floating cards */
  .floating-cards {
    display: block;
  }
}

/* 2X Large devices (larger desktops, 1400px and up) */
@media (min-width: 1200px) {
  .container {
    max-width: 1400px;
  }
  
  /* Enhanced spacing for larger screens */
  .section {
    padding: calc(var(--spacing-4xl) * 1.5) 0;
  }
  
  .hero {
    padding: 140px 0 calc(var(--spacing-4xl) * 1.5);
  }
}

/* High DPI / Retina Display Optimizations */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  /* Ensure crisp text rendering */
  body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
}

/* Print Styles */
@media print {
  /* Hide interactive elements */
  .navbar,
  .hero-actions,
  .btn,
  .modal,
  .notification-container,
  .floating-cards {
    display: none !important;
  }
  
  /* Optimize for print */
  body {
    font-size: 12pt;
    line-height: 1.4;
    color: #000;
    background: #fff;
  }
  
  .container {
    max-width: none;
    padding: 0;
  }
  
  .section {
    padding: 20pt 0;
    page-break-inside: avoid;
  }
  
  .section-title {
    font-size: 18pt;
  }
  
  .card,
  .pricing-card,
  .testimonial-card {
    border: 1px solid #ccc;
    box-shadow: none;
    page-break-inside: avoid;
    margin-bottom: 20pt;
  }
  
  a {
    color: #000;
    text-decoration: underline;
  }
  
  /* Show URLs for external links */
  a[href^="http"]:after {
    content: " (" attr(href) ")";
    font-size: 10pt;
  }
}

/* Reduced Motion Preferences */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .floating-card {
    animation: none !important;
  }
  
  .loading-spinner {
    animation: none !important;
  }
}

/* Dark Mode Support (for future implementation) */
@media (prefers-color-scheme: dark) {
  :root {
    /* Dark mode color overrides would go here */
    /* Currently using light mode only */
  }
}

/* Focus Management for Accessibility */
@media (any-hover: none) {
  /* Touch devices - enhance touch targets */
  .btn {
    min-height: 44px;
    min-width: 44px;
  }
  
  .nav-link {
    padding: var(--spacing-md);
  }
  
  .tab-btn {
    min-height: 44px;
  }
}

/* Landscape Orientation Adjustments */
@media (orientation: landscape) and (max-height: 600px) {
  .hero {
    padding: 80px 0 var(--spacing-2xl);
  }
  
  .modal-content {
    max-height: 80vh;
  }
}

/* Container Query Support (Future Enhancement) */
/* When container queries are widely supported, these can be used */
/* for more precise responsive design within components */

/* Utilities for responsive display */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }

@media (min-width: 576px) {
  .d-sm-none { display: none !important; }
  .d-sm-block { display: block !important; }
  .d-sm-flex { display: flex !important; }
  .d-sm-grid { display: grid !important; }
}

@media (min-width: 768px) {
  .d-md-none { display: none !important; }
  .d-md-block { display: block !important; }
  .d-md-flex { display: flex !important; }
  .d-md-grid { display: grid !important; }
}

@media (min-width: 992px) {
  .d-lg-none { display: none !important; }
  .d-lg-block { display: block !important; }
  .d-lg-flex { display: flex !important; }
  .d-lg-grid { display: grid !important; }
}

@media (min-width: 1200px) {
  .d-xl-none { display: none !important; }
  .d-xl-block { display: block !important; }
  .d-xl-flex { display: flex !important; }
  .d-xl-grid { display: grid !important; }
}

/* Responsive spacing utilities */
@media (max-width: 575.98px) {
  .p-sm-0 { padding: 0 !important; }
  .p-sm-1 { padding: var(--spacing-xs) !important; }
  .p-sm-2 { padding: var(--spacing-sm) !important; }
  .p-sm-3 { padding: var(--spacing-md) !important; }
  
  .m-sm-0 { margin: 0 !important; }
  .m-sm-1 { margin: var(--spacing-xs) !important; }
  .m-sm-2 { margin: var(--spacing-sm) !important; }
  .m-sm-3 { margin: var(--spacing-md) !important; }
  
  .text-sm-center { text-align: center !important; }
  .text-sm-left { text-align: left !important; }
  .text-sm-right { text-align: right !important; }
}