:root {
  --primary: #e60000;
  --primary-dark: #b30000;
  --text: #333333;
  --light: #ffffff;
  --bg: #ffffff;
  --text-primary: #333333;
  --text-secondary: #666666;
  --card-bg: #ffffff;
  --navbar-bg: #ffffff;
  --shadow: rgba(0, 0, 0, 0.1);
  --body-bg: #ffffff;
  --brand-text: #333333;
}

[data-theme="dark"] {
  --primary: #ff3333;
  --primary-dark: #cc0000;
  --text: #ffffff;
  --light: #ffffff;
  --bg: #121212;
  --text-primary: #ffffff;
  --text-secondary: #b3b3b3;
  --card-bg: #1e1e1e;
  --navbar-bg: #1e1e1e;
  --shadow: rgba(0, 0, 0, 0.3);
  --body-bg: #121212;
  --brand-text: #ffffff;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Poppins", sans-serif;
  background-color: var(--body-bg);
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.navbar {
  padding: 1.5rem 2rem;
  background-color: var(--navbar-bg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  transition: all 0.3s ease;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  text-decoration: none;
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.brand-text {
  color: var(--brand-text);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.5px;
}

.brand-highlight {
  color: var(--primary);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  position: relative;
}

.brand-highlight::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}

.nav-brand:hover .brand-highlight::after {
  transform: scaleX(1);
  transform-origin: left;
}

.cta-button {
  background: var(--primary);
  color: var(--light);
  padding: 0.8rem 1.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
}

.cta-button i {
  transition: transform 0.3s ease;
}

.cta-button:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.cta-button:hover i {
  transform: translateX(5px);
}

@media (max-width: 768px) {
  .navbar {
    padding: 1rem;
  }

  .brand-text,
  .brand-highlight {
    font-size: 1.2rem;
  }

  .cta-button {
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
  }
}

.article-banner {
  margin-top: 80px;
  padding: 4rem 2rem;
  background: linear-gradient(rgba(139, 0, 0, 0.45), rgba(100, 0, 0, 0.45)),
    url("https://www.steelworksexpert.com/wp-content/uploads/2024/07/banner-1.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--light);
  position: relative;
}

[data-theme="dark"] .article-banner {
  background: linear-gradient(rgba(139, 0, 0, 0.5), rgba(100, 0, 0, 0.5)),
    url("https://www.steelworksexpert.com/wp-content/uploads/2024/07/banner-1.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.banner-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.article-meta {
  display: flex;
  gap: 2rem;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

.category {
  background: rgba(255, 255, 255, 0.2);
  padding: 0.3rem 1rem;
  border-radius: 50px;
  backdrop-filter: blur(5px);
}

.reading-time {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  opacity: 0.9;
}

.article-title {
  font-size: 2.8rem;
  line-height: 1.2;
  font-weight: 700;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

@media (max-width: 768px) {
  .article-banner {
    padding: 3rem 1rem;
  }

  .article-title {
    font-size: 2rem;
  }

  .article-meta {
    flex-direction: column;
    gap: 1rem;
    align-items: center;
  }
}

/* Theme toggle */
.theme-toggle {
  position: fixed;
  top: 100px;
  right: 20px;
  z-index: 1000;
}

.theme-toggle button {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: var(--card-bg);
  color: var(--text-primary);
  cursor: pointer;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
}

.theme-toggle button:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.theme-toggle button svg {
  width: 20px;
  height: 20px;
}

.theme-toggle .sun-icon {
  display: none;
}

.theme-toggle .moon-icon {
  display: block;
}

[data-theme="dark"] .theme-toggle .sun-icon {
  display: block;
}

[data-theme="dark"] .theme-toggle .moon-icon {
  display: none;
}

/* Article Content */
.article-content {
  background-color: var(--bg);
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.content-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.article-section {
  margin: 4rem 0;
}

.article-section h2 {
  color: var(--primary);
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.info-box {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 10px;
  margin: 2rem 0;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.benefit-card {
  background-color: var(--card-bg);
  color: var(--text-primary);
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.benefit-card:hover {
  transform: translateY(-5px);
}

.benefit-card i {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .content-container {
    padding: 2rem 1rem;
  }

  .article-section h2 {
    font-size: 1.6rem;
  }

  .theme-toggle {
    top: auto;
    bottom: 2rem; /* Increased from 1rem for better spacing */
    right: 1.5rem; /* Slightly increased from 1rem */
  }

  .theme-toggle button {
    width: 35px;
    height: 35px;
    font-size: 1rem;
  }
}

/* Features Section Styling */
.features-section {
  background: var(--bg);
  padding: 2rem 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.feature-card {
  background-color: var(--card-bg);
  color: var(--text-primary);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.feature-card i {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.feature-card h3 {
  color: var(--primary);
  font-size: 1.3rem;
  margin-bottom: 1rem;
  line-height: 1.4;
}

.feature-card ul {
  list-style: none;
  padding: 0;
}

.feature-card li {
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.6;
  position: relative;
  padding-left: 1.5rem;
}

.feature-card li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--primary);
}

@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    padding: 1.5rem;
  }
}

/* Implementation Section Styling */
.implementation-section {
  background: var(--bg);
  padding: 2rem 0;
}

.implementation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.implementation-card {
  background-color: var(--card-bg);
  color: var(--text-primary);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  position: relative;
}

.implementation-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.step-number {
  position: absolute;
  top: -15px;
  left: 20px;
  background: var(--primary);
  color: var(--light);
  width: 35px;
  height: 35px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9rem;
}

.implementation-card h3 {
  color: var(--primary);
  font-size: 1.3rem;
  margin: 1rem 0;
  line-height: 1.4;
}

.implementation-card ul {
  list-style: none;
  padding: 0;
}

.implementation-card li {
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.6;
  position: relative;
  padding-left: 1.5rem;
}

.implementation-card li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--primary);
}

@media (max-width: 768px) {
  .implementation-grid {
    grid-template-columns: 1fr;
  }

  .implementation-card {
    padding: 1.5rem;
  }
}

/* Impact Section Styling */
.impact-section {
  background: var(--bg);
  padding: 2rem 0;
}

.impact-content {
  margin-top: 2rem;
}

.impact-intro {
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--text-primary);
  margin-bottom: 3rem;
  text-align: center;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.impact-card {
  background-color: var(--card-bg);
  color: var(--text-primary);
  padding: 2.5rem;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  text-align: center;
}

.impact-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.impact-card i {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.impact-card h3 {
  color: var(--primary);
  font-size: 1.4rem;
  margin-bottom: 1rem;
  line-height: 1.4;
}

.impact-card p {
  color: var(--text-primary);
  line-height: 1.8;
}

@media (max-width: 768px) {
  .impact-intro {
    font-size: 1.1rem;
    padding: 0 1rem;
  }

  .impact-grid {
    grid-template-columns: 1fr;
  }

  .impact-card {
    padding: 2rem;
  }
}

/* Challenges Section Styling */
.challenges-section {
  background: var(--bg);
  padding: 2rem 0;
}

.challenges-content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 2rem;
}

.challenge-card {
  background-color: var(--card-bg);
  color: var(--text-primary);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.challenge-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.challenge-icon {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  background: var(--primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.challenge-icon i {
  font-size: 1.8rem;
  color: var(--light);
}

.challenge-text h3 {
  color: var(--primary);
  font-size: 1.3rem;
  margin-bottom: 1rem;
  line-height: 1.4;
}

.challenge-text p {
  color: var(--text-primary);
  line-height: 1.8;
}

@media (max-width: 768px) {
  .challenge-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.5rem;
  }

  .challenge-icon {
    margin-bottom: 1rem;
  }
}

/* Future Section Styling */
.future-section {
  background: var(--bg);
  padding: 2rem 0;
}

.future-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.future-card {
  background-color: var(--card-bg);
  color: var(--text-primary);
  padding: 2.5rem;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  text-align: center;
}

.future-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.future-icon {
  width: 80px;
  height: 80px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem;
}

.future-icon i {
  font-size: 2.5rem;
  color: var(--light);
}

.future-card p {
  color: var(--text-primary);
  line-height: 1.8;
}

/* Conclusion Section Styling */
.conclusion-section {
  background: var(--bg);
  padding: 2rem 0;
}

.conclusion-content {
  margin-top: 2rem;
}

.conclusion-content p {
  color: var(--text-primary);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.conclusion-highlight {
  background-color: var(--card-bg);
  color: var(--text-primary);
  padding: 2.5rem;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  margin: 3rem 0;
  display: flex;
  gap: 2rem;
  align-items: center;
  transition: all 0.3s ease;
}

.conclusion-highlight:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.conclusion-highlight i {
  font-size: 2.5rem;
  color: var(--primary);
  flex-shrink: 0;
}

.conclusion-highlight p {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 500;
}

@media (max-width: 768px) {
  .future-content {
    grid-template-columns: 1fr;
  }

  .conclusion-highlight {
    flex-direction: column;
    text-align: center;
    padding: 2rem;
  }

  .conclusion-highlight i {
    margin-bottom: 1rem;
  }
}

/* Reading Progress Bar */
.progress-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: transparent;
  z-index: 9999;
}

.progress-bar {
  height: 100%;
  background: var(--primary);
  width: 0%;
  transition: width 0.3s ease;
}

/* Enhanced Typography */
.article-content p {
  font-size: 1.15rem;
  line-height: 1.9;
  color: var(--text-primary);
  margin-bottom: 2rem;
  opacity: 0.95;
  letter-spacing: 0.2px;
}

.article-section h2 {
  font-size: 2.4rem;
  margin-bottom: 2.5rem;
  position: relative;
  padding-bottom: 1.2rem;
  color: var(--primary);
}

.article-section h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 80px;
  height: 4px;
  background: var(--primary);
  border-radius: 2px;
}

.section-intro {
  font-size: 1.2rem;
  line-height: 1.8;
  margin-bottom: 3rem;
  color: var(--text-primary);
  opacity: 0.9;
}

/* Enhanced Cards */
.benefit-card,
.feature-card,
.implementation-card {
  padding: 2.5rem;
  border-radius: 15px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.benefit-card:hover,
.feature-card:hover,
.implementation-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

/* Enhanced Lists */
.benefit-card ul,
.feature-card ul {
  list-style: none;
  padding-left: 0;
}

.benefit-card li,
.feature-card li {
  margin-bottom: 1rem;
  padding-left: 1.8rem;
  position: relative;
  line-height: 1.7;
}

.benefit-card li::before,
.feature-card li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: bold;
}

/* Enhanced Info Box */
.info-box {
  background: linear-gradient(145deg, var(--card-bg), var(--bg));
  padding: 3rem;
  border-radius: 20px;
  margin: 3rem 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Enhanced Article Link */
.article-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  padding-bottom: 2px;
  background-image: linear-gradient(var(--primary), var(--primary));
  background-position: 0 100%;
  background-repeat: no-repeat;
  background-size: 0% 2px;
  transition: background-size 0.3s ease;
}

.article-link:hover {
  background-size: 100% 2px;
}

/* Enhanced Spacing */
.article-section {
  margin: 6rem 0;
  padding: 0 1rem;
}

.content-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

/* Enhanced Mobile Responsiveness */
@media (max-width: 768px) {
  .article-section h2 {
    font-size: 2rem;
  }

  .section-intro {
    font-size: 1.1rem;
  }

  .article-content p {
    font-size: 1.05rem;
    line-height: 1.8;
  }

  .info-box {
    padding: 2rem;
  }

  .benefit-card,
  .feature-card,
  .implementation-card {
    padding: 2rem;
  }
}

/* Enhanced Dark Mode */
[data-theme="dark"] .benefit-card,
[data-theme="dark"] .feature-card,
[data-theme="dark"] .implementation-card,
[data-theme="dark"] .info-box {
  background: var(--card-bg);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Enhanced Icons */
.benefit-card i,
.feature-card i,
.implementation-card i {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  background: linear-gradient(45deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Text Selection */
::selection {
  background: var(--primary);
  color: var(--light);
}

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

/* Enhanced Dark Mode Toggle */
.theme-toggle button:hover {
  transform: scale(1.1);
}

/* Code Blocks */
pre {
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 2rem 0;
  border-left: 4px solid var(--primary);
}

/* Blockquotes */
blockquote {
  border-left: 4px solid var(--primary);
  padding-left: 1.5rem;
  margin: 2rem 0;
  font-style: italic;
  color: var(--text-secondary);
}

/* Enhanced List Styling */
.article-content ul {
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
}

.article-content li {
  margin-bottom: 0.5rem;
  position: relative;
}

.article-content li::marker {
  color: var(--primary);
}

/* Table Styling */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background: var(--card-bg);
  border-radius: 8px;
  overflow: hidden;
}

th,
td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

th {
  background: var(--primary);
  color: var(--light);
}

/* Image Styling */
img {
  max-width: 100%;
  border-radius: 8px;
  margin: 2rem 0;
}

/* Update theme toggle styles */
.theme-toggle button .fa-sun {
  display: none;
}

[data-theme="dark"] .theme-toggle button .fa-moon {
  display: none;
}

[data-theme="dark"] .theme-toggle button .fa-sun {
  display: block;
}

/* Add transition to elements that change with theme */
body,
.navbar,
.article-content,
.benefit-card,
.feature-card,
.implementation-card,
.impact-card,
.challenge-card,
.future-card,
.conclusion-highlight {
  transition: background-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

/* Footer Styling */
.site-footer {
  background: var(--navbar-bg);
  padding: 2rem 0;
  margin-top: 4rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-nav {
  display: flex;
  justify-content: center;
  gap: 3rem;
  align-items: center;
}

.footer-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  padding: 0.5rem 1rem;
  border-radius: 8px;
}

.footer-link i {
  font-size: 1.2rem;
  color: var(--primary);
}

.footer-link:hover {
  background: var(--card-bg);
  transform: translateY(-2px);
}

@media (max-width: 768px) {
  .footer-nav {
    flex-direction: column;
    gap: 1.5rem;
  }

  .footer-link {
    width: 100%;
    justify-content: center;
  }
}