/**
 * Enhanced Mobile Responsiveness & SEO Optimization Styles
 * For OV Kunststoffe - Soundproof Drainage Solutions
 * Optimized for India market, mobile-first approach
 */

/* ============================================================================
   MOBILE-FIRST RESPONSIVE IMPROVEMENTS (320px - 1440px)
   ============================================================================ */

/* Critical Fix: Hero Section Responsiveness */
@media (max-width: 480px) {
  .hero .hero-title,
  .hero h1 {
    font-size: 1.6rem !important;
    white-space: normal !important;
    line-height: 1.25 !important;
    margin-bottom: 15px !important;
    word-wrap: break-word;
  }

  .hero .hero-subtitle,
  .hero p {
    font-size: 0.95rem !important;
    line-height: 1.5 !important;
  }

  .hero .btn,
  .hero-cta-group .btn {
    padding: 12px 24px !important;
    font-size: 0.9rem !important;
    width: 100%;
    margin-bottom: 8px;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
    gap: 10px !important;
  }

  .hero-cta-group > * {
    width: 100%;
  }
  
  .hero-stats {
    flex-direction: column !important;
    gap: 12px !important;
    margin-top: 30px !important;
  }
  
  .hero-stat-item {
    padding: 15px 20px !important;
    min-width: unset !important;
    width: 100% !important;
    max-width: 200px !important;
  }
  
  .hero-stat-number {
    font-size: 1.8rem !important;
  }
  
  .hero-tagline {
    flex-direction: column !important;
    gap: 6px !important;
    font-size: 0.8rem !important;
  }
  
  .hero-tagline span {
    display: block;
  }
  
  .hero-tagline span::before {
    display: none !important;
  }
}

@media (max-width: 768px) {
  /* Header and Navigation Fixes */
  .header {
    padding: 12px 0 !important;
    min-height: auto;
    z-index: 10002 !important;
  }

  .logo img {
    height: 40px !important;
    width: auto !important;
  }

  .sitename {
    font-size: 1.2rem !important;
    margin: 0;
  }

  /* Mobile Nav Improvements */
  .navmenu ul {
    inset: 70px 15px auto 15px !important;
    border-radius: 16px !important;
    padding: 15px !important;
  }

  .navmenu ul li a {
    padding: 14px 18px !important;
    font-size: 1rem !important;
    border-radius: 10px !important;
  }
  
  .navmenu .dropdown > ul {
    margin: 5px 0 10px 15px !important;
    padding: 10px !important;
    position: static !important;
    inset: auto !important;
  }
  
  .navmenu .dropdown ul li a {
    padding: 12px 15px !important;
    font-size: 0.95rem !important;
  }

  /* Button Touch Optimization */
  .btn {
    min-height: 48px !important;
    padding: 12px 24px !important;
    font-size: 0.95rem !important;
  }

  .btn-primary {
    padding: 14px 28px !important;
  }

  /* Section Title Responsiveness */
  .section-title h2 {
    font-size: 1.6rem !important;
    margin-bottom: 15px !important;
  }

  .section-title p {
    font-size: 0.95rem;
    margin-bottom: 30px;
  }

  /* Card and Container Spacing */
  .container {
    padding-left: 15px !important;
    padding-right: 15px !important;
  }

  .row {
    margin-left: -10px;
    margin-right: -10px;
  }

  .col-lg-4,
  .col-lg-6,
  .col-md-6 {
    padding-left: 10px;
    padding-right: 10px;
    margin-bottom: 20px;
  }

  /* Image Responsiveness */
  img {
    max-width: 100%;
    height: auto;
  }

  /* Form Inputs */
  input,
  textarea,
  select {
    font-size: 16px !important; /* Prevents zoom on iOS */
    padding: 14px !important;
    min-height: 48px !important;
  }

  /* Tables - Make scrollable on mobile */
  table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  /* Footer Responsiveness */
  footer,
  .footer {
    padding: 30px 0 !important;
  }

  footer .row,
  .footer .row {
    margin-bottom: 30px;
  }
  
  .footer-main {
    padding: 40px 0 30px !important;
  }
  
  .footer-top-banner {
    padding: 30px 15px !important;
  }
  
  .footer-banner-content h3 {
    font-size: 1.3rem !important;
  }
  
  .footer-banner-content p {
    font-size: 0.9rem !important;
  }
  
  /* WOW Cards Mobile */
  .wow-card {
    padding: 25px 20px !important;
  }
  
  .wow-card-title {
    font-size: 1.2rem !important;
  }
  
  .wow-card-badge {
    font-size: 0.75rem !important;
    padding: 5px 10px !important;
  }
  
  /* Why Feature Mobile */
  .why-feature {
    padding: 15px !important;
  }
  
  .why-feature-icon {
    width: 50px !important;
    height: 50px !important;
  }
  
  .why-feature-icon i {
    font-size: 1.2rem !important;
  }
  
  .why-feature-content h4 {
    font-size: 1rem !important;
  }
  
  .why-feature-content p {
    font-size: 0.85rem !important;
  }
}

@media (max-width: 600px) {
  h1 {
    font-size: 1.5rem !important;
  }

  h2 {
    font-size: 1.4rem !important;
  }

  h3 {
    font-size: 1.2rem !important;
  }

  h4 {
    font-size: 1.1rem !important;
  }

  h5 {
    font-size: 1rem !important;
  }

  p {
    font-size: 0.95rem;
    line-height: 1.6;
  }

  body {
    font-size: 14px;
  }
}

/* Very Small Devices (320px - 375px) */
@media (max-width: 375px) {
  .hero h1 {
    font-size: 1.5rem !important;
    letter-spacing: 0 !important;
  }

  .sitename {
    font-size: 1.1rem !important;
  }

  .section-title h2 {
    font-size: 1.5rem !important;
  }

  .container {
    max-width: 100% !important;
    padding: 0 10px;
  }

  .btn {
    padding: 10px 15px !important;
    font-size: 0.85rem !important;
  }
}

/* ============================================================================
   TABLET OPTIMIZATION (769px - 1024px)
   ============================================================================ */

@media (min-width: 769px) and (max-width: 1024px) {
  .section-title h2 {
    font-size: 2rem;
  }

  .hero h1 {
    font-size: 2.5rem !important;
  }

  .container-xl {
    max-width: 95%;
  }

  .col-lg-4 {
    flex: 0 0 calc(50% - 10px);
  }

  .col-lg-6 {
    flex: 0 0 calc(50% - 10px);
  }
}

/* ============================================================================
   DESKTOP OPTIMIZATION (1025px+)
   ============================================================================ */

@media (min-width: 1025px) {
  .container-xl {
    max-width: 1200px;
  }

  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }
}

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

@media (max-height: 600px) and (orientation: landscape) {
  .hero {
    min-height: auto;
    padding: 40px 0 !important;
  }

  .hero h1 {
    font-size: 1.8rem !important;
    margin-bottom: 10px !important;
  }

  .hero p {
    font-size: 0.9rem !important;
    margin-bottom: 15px !important;
  }
}

/* ============================================================================
   VISIBILITY & READABILITY IMPROVEMENTS
   ============================================================================ */

/* Ensure readable text sizes */
body {
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

/* Prevent horizontal scroll on narrow devices */
html,
body {
  max-width: 100%;
  overflow-x: hidden;
}

/* Readable line heights on mobile */
p,
li {
  line-height: 1.6;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: 1.3;
}

/* ============================================================================
   TOUCH-FRIENDLY SPACING
   ============================================================================ */

/* Ensure clickable areas are at least 48x48px */
a,
button,
input[type="button"],
input[type="submit"],
.btn,
.nav-link,
[role="button"] {
  min-height: 48px;
  min-width: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Link padding for better touch targets */
a[href] {
  padding: 8px 4px;
}

/* ============================================================================
   FORM IMPROVEMENTS FOR MOBILE
   ============================================================================ */

input,
textarea,
select,
button {
  border: 1px solid #ccc;
  border-radius: 4px;
  font-family: inherit;
  font-size: 16px; /* Prevents iOS zoom */
}

textarea {
  min-height: 120px;
  resize: vertical;
}

/* ============================================================================
   IMAGE LAZY LOADING SETUP
   ============================================================================ */

img[loading="lazy"] {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ============================================================================
   VIDEO & IFRAME RESPONSIVENESS
   ============================================================================ */

iframe,
video {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Responsive embed container */
.embed-responsive {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  overflow: hidden;
}

.embed-responsive::before {
  content: "";
  display: block;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
}

.embed-responsive iframe,
.embed-responsive object,
.embed-responsive embed {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ============================================================================
   PRINT STYLES
   ============================================================================ */

@media print {
  * {
    background: transparent !important;
    color: #000 !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }

  a,
  a:visited {
    text-decoration: underline;
  }

  a[href]:after {
    content: " (" attr(href) ")";
  }

  img {
    max-width: 100% !important;
  }

  @page {
    margin: 0.5cm;
  }

  h1,
  h2,
  h3 {
    page-break-after: avoid;
  }
}

/* ============================================================================
   ACCESSIBILITY IMPROVEMENTS
   ============================================================================ */

/* Focus states for keyboard navigation */
:focus {
  outline: 3px solid #c6a100;
  outline-offset: 2px;
}

button:focus,
a:focus,
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid #c6a100;
  outline-offset: 2px;
}

/* Skip to main content link */
.skip-to-main {
  position: absolute;
  top: -40px;
  left: 0;
  background: #c6a100;
  color: white;
  padding: 8px;
  z-index: 100;
  text-decoration: none;
}

.skip-to-main:focus {
  top: 0;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: more) {
  body {
    border: 1px solid #000;
  }

  a {
    text-decoration: underline;
  }
}

/* ============================================================================
   DARK MODE SUPPORT
   ============================================================================ */

@media (prefers-color-scheme: dark) {
  input,
  textarea,
  select {
    background-color: #2a2a2a;
    color: #e0e0e0;
    border-color: #444;
  }

  input::placeholder,
  textarea::placeholder {
    color: #888;
  }
}

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

/* GPU acceleration for smooth animations */
.hero,
.carousel,
[data-aos],
.animated {
  will-change: transform;
  transform: translateZ(0);
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Optimize font loading */
/* @font-face rules should be defined with font-family and src properties */