/* ====================================
   Root Variables and Base Styles
   ==================================== */
/* Root Variables */
:root {
  --primary-color: #81b71a;
  --secondary-color: #4ebbf7;
  --tertiary-color: #6d6d6d;
  --text-color: #000000;
  --background-light: #ffffff;

  /* Gradients */
  --primary-gradient: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );

  /* Typography */
  --heading-font: Helvetica, Arial, sans-serif;
  --body-font: Arial, sans-serif;
}

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

body {
  font-family: var(--body-font);
  line-height: 1.8;
  background: #fafafa;
  color: var(--text-color);
}

.container {
  width: 100%;
  max-width: 1800px;
  margin: 0 auto;
  overflow: hidden;
}

/* Article 8 Styles */
.article-8 {
  padding: 100px 40px;
  background: linear-gradient(135deg, #ffffff, #f8f9fa);
  position: relative;
  overflow: hidden;
}

/* Background Pattern */
.article-8::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: radial-gradient(
    circle at 70% 30%,
    rgba(129, 183, 26, 0.1),
    transparent 60%
  );
  pointer-events: none;
}

.article-8 .article-content {
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* Intro Section */
.article-8 .intro-section {
  text-align: center;
  margin-bottom: 60px;
  padding: 40px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-radius: 30px;
  border: 1px solid rgba(129, 183, 26, 0.2);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.article-8 .reason-tag {
  background: var(--primary-gradient);
  color: white;
  padding: 10px 25px;
  border-radius: 100px;
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 30px;
  display: inline-block;
  box-shadow: 0 10px 20px rgba(129, 183, 26, 0.2);
}

.article-8 h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--tertiary-color);
  margin-bottom: 30px;
  line-height: 1.2;
}

/* Research Intro */
.article-8 .research-intro {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-radius: 25px;
  padding: 40px;
  margin-bottom: 60px;
  border: 1px solid rgba(129, 183, 26, 0.2);
}

.article-8 .lead-text {
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  color: var(--tertiary-color);
  margin-bottom: 30px;
}

/* Research Grid */
.article-8 .research-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: start;
}

/* Research Content */
.article-8 .research-content {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-radius: 25px;
  padding: 40px;
  border: 1px solid rgba(129, 183, 26, 0.2);
}

.article-8 .research-text h3 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  color: var(--tertiary-color);
  margin-bottom: 30px;
}

.article-8 .research-papers {
  display: grid;
  gap: 30px;
  margin-top: 40px;
}

.article-8 .paper-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  padding: 30px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 20px;
  border: 1px solid rgba(129, 183, 26, 0.15);
  transition: transform 0.3s ease;
}

.article-8 .paper-item:hover {
  transform: translateY(-5px);
}

.article-8 .paper-number {
  width: 40px;
  height: 40px;
  background: var(--primary-gradient);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 18px;
}

.article-8 .paper-details h4 {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: var(--tertiary-color);
  margin-bottom: 10px;
}

.article-8 .paper-details p {
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  color: var(--tertiary-color);
  font-style: italic;
}

/* Research Image */
.article-8 figure {
  margin: 40px 0;
}

.article-8 figure img {
  width: 100%;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
  transition: transform 0.3s ease;
}

.article-8 figure img:hover {
  transform: translateY(-10px);
}

.article-8 figcaption {
  font-size: 0.9rem;
  color: var(--tertiary-color);
  text-align: center;
  margin-top: 15px;
  font-style: italic;
}

/* Research Highlights */
.article-8 .research-highlights {
  position: sticky;
  top: 40px;
}

.article-8 .highlight-box {
  background: var(--primary-gradient);
  color: white;
  padding: 40px;
  border-radius: 25px;
  margin-bottom: 30px;
}

.article-8 .highlight-box h3 {
  font-size: clamp(1.6rem, 3vw, 2rem);
  margin-bottom: 30px;
}

.article-8 .findings-list {
  list-style: none;
  padding: 0;
}

.article-8 .findings-list li {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  margin-bottom: 20px;
  padding-left: 30px;
  position: relative;
}

.article-8 .findings-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--secondary-color);
}

.article-8 .highlight-number {
  color: var(--secondary-color);
  font-weight: bold;
}

.article-8 .research-quote {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-radius: 20px;
  padding: 30px;
  border: 1px solid rgba(129, 183, 26, 0.2);
}

.article-8 .research-quote p {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: var(--tertiary-color);
  font-style: italic;
  margin-bottom: 15px;
}

.article-8 .research-quote cite {
  color: var(--primary-color);
  font-style: normal;
  font-weight: 600;
}

/* Text Highlights */
.highlight-primary {
  color: var(--primary-color);
  font-weight: 600;
}

.highlight-secondary {
  color: var(--secondary-color);
  font-weight: 600;
}

/* Responsive Design */
@media (max-width: 992px) {
  .article-8 .research-grid {
    grid-template-columns: 1fr;
  }

  .article-8 .research-highlights {
    position: static;
  }
}

@media (max-width: 768px) {
  .article-8 {
    padding: 60px 20px;
  }

  .article-8 .intro-section,
  .article-8 .research-content,
  .article-8 .highlight-box {
    padding: 30px;
  }

  .article-8 .paper-item {
    padding: 20px;
  }
}

@media (max-width: 480px) {
  .article-8 {
    padding: 40px 15px;
  }

  .article-8 .intro-section,
  .article-8 .research-content,
  .article-8 .highlight-box {
    padding: 20px;
  }

  .article-8 .paper-item {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .article-8 .paper-number {
    margin: 0 auto 15px;
  }
}