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

:root {
  --primary-color: #ffc857;
  --secondary-color: #e9724c;
  --accent-color: #c5283d;
  --text-primary: #eee;
  --text-secondary: #aaa;
  --bg-primary: #181820;
  --bg-secondary: #1e1e28;
  --bg-card: #252530;
  --border-color: #333;
  --shadow: rgba(0, 0, 0, 0.3);
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.header {
  background: var(--bg-secondary);
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.logo img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.logo h2 {
  font-size: 1.5rem;
  color: var(--primary-color);
}

.back-btn {
  background: var(--primary-color);
  color: var(--bg-primary);
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
}

.back-btn:hover {
  background: #e6b34f;
  transform: translateY(-2px);
}

/* Hero Section */
.hero {
  padding: 4rem 0;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.project-tags {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.project-tag {
  background: var(--bg-card);
  color: var(--primary-color);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  border: 1px solid var(--primary-color);
}

.project-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.btn {
  background: var(--primary-color);
  color: var(--bg-primary);
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
}

.btn:hover {
  background: #e6b34f;
  transform: translateY(-2px);
}

/* Main Content */
.main-content {
  padding: 4rem 0;
}

.section {
  margin-bottom: 6rem;
}

.section h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: var(--primary-color);
  text-align: center;
}

/* Project Gallery */
.project-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin-bottom: 3rem;
}

.gallery-item {
  background: var(--bg-card);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.4s ease;
  position: relative;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.gallery-item:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 40px rgba(255, 200, 87, 0.15);
}

.gallery-item img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-caption {
  padding: 1.5rem;
  text-align: center;
  color: var(--text-primary);
  font-weight: 600;
  background: linear-gradient(135deg, var(--bg-card), rgba(255, 200, 87, 0.05));
}

/* Features Section */
.features-hero {
  text-align: center;
  margin-bottom: 4rem;
}

.features-hero p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.features-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 3rem;
  margin-bottom: 4rem;
}

.feature-card {
  background: linear-gradient(145deg, var(--bg-card), rgba(255, 200, 87, 0.05));
  border-radius: 24px;
  padding: 3rem 2rem;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 200, 87, 0.2);
  transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transform: scaleX(0);
  transition: transform 0.5s ease;
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-card:hover {
  transform: translateY(-12px) rotateX(2deg);
  box-shadow: 0 30px 60px rgba(255, 200, 87, 0.25);
}

.feature-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.feature-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg-primary);
  font-size: 1.8rem;
  transition: all 0.4s ease;
  position: relative;
}

.feature-icon::after {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(45deg, var(--primary-color), var(--secondary-color), var(--primary-color));
  border-radius: 20px;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.feature-card:hover .feature-icon::after {
  opacity: 1;
}

.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(10deg);
}

.feature-title {
  flex: 1;
}

.feature-title h3 {
  color: var(--primary-color);
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.feature-subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.feature-description {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 1rem;
}

/* Project Stats Section */
.project-stats {
  background: linear-gradient(135deg, var(--bg-secondary), rgba(255, 200, 87, 0.05));
  border-radius: 24px;
  padding: 3rem;
  margin: 4rem 0;
  border: 1px solid rgba(255, 200, 87, 0.1);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  text-align: center;
}

.stat-item {
  padding: 1.5rem;
  min-width: 0;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
  display: block;
  white-space: nowrap;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  word-wrap: break-word;
  hyphens: auto; 
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .project-stats {
    padding: 2rem 1.5rem; 
    margin: 3rem 0;
    border-radius: 16px;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  
  .stat-item {
    padding: 1rem 0.5rem;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .stat-label {
    font-size: 0.8rem; 
    letter-spacing: 0.5px; 
    line-height: 1.3; 
  }
}

@media (max-width: 480px) {
  .project-stats {
    padding: 1.5rem 1rem; 
    margin: 2rem 0;
  }
  
  .stats-grid {
    grid-template-columns: 1fr 1fr; 
    gap: 1rem;
  }
  
  .stat-item {
    padding: 0.75rem 0.25rem;
  }
  
  .stat-number {
    font-size: 1.8rem; 
  }
  
  .stat-label {
    font-size: 0.75rem;
    letter-spacing: 0.25px;
  }
}

/* Stack vertically for very small screens */
@media (max-width: 320px) {
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .stat-item {
    padding: 1rem;
    border-bottom: 1px solid rgba(255, 200, 87, 0.1);
  }
  
  .stat-item:last-child {
    border-bottom: none;
  }
}

/* Technology Stack */
.tech-showcase {
  background: var(--bg-card);
  border-radius: 24px;
  padding: 3rem;
  margin: 4rem 0;
  position: relative;
  overflow: hidden;
}

.tech-showcase::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.tech-showcase h3 {
  text-align: center;
  color: var(--primary-color);
  font-size: 1.8rem;
  margin-bottom: 2rem;
}

.tech-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.tech-category {
  text-align: center;
  padding: 1.5rem;
  border-radius: 16px;
  background: rgba(255, 200, 87, 0.05);
  border: 1px solid rgba(255, 200, 87, 0.1);
  transition: all 0.3s ease;
}

.tech-category:hover {
  transform: translateY(-5px);
  background: rgba(255, 200, 87, 0.1);
}

.tech-category h4 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
}

.tech-tag {
  background: var(--bg-primary);
  color: var(--primary-color);
  padding: 0.4rem 0.8rem;
  border-radius: 12px;
  font-size: 0.8rem;
  border: 1px solid rgba(255, 200, 87, 0.3);
}

/* Challenges & Solutions */
.challenges-section {
  margin: 4rem 0;
}

.challenge-solution {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2rem;
}

.challenge-card, .solution-card {
  padding: 2rem;
  border-radius: 16px;
  position: relative;
}

.challenge-card {
  background: linear-gradient(135deg, rgba(197, 40, 61, 0.1), var(--bg-card));
  border-left: 4px solid var(--accent-color);
}

.solution-card {
  background: linear-gradient(135deg, rgba(255, 200, 87, 0.1), var(--bg-card));
  border-left: 4px solid var(--primary-color);
}

.challenge-card h4 {
  color: var(--accent-color);
  margin-bottom: 1rem;
}

.solution-card h4 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  padding: 2rem 0;
  text-align: center;
  border-top: 1px solid var(--border-color);
  margin-top: 4rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

  .features-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .feature-card {
    padding: 2rem 1.5rem;
  }

  .feature-header {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .challenge-solution {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .tech-categories {
    grid-template-columns: 1fr;
  }

  .header-content {
    flex-direction: column;
    gap: 1rem;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.feature-card {
  animation: fadeInUp 0.6s ease forwards;
}

.feature-card:nth-child(2) {
  animation-delay: 0.2s;
}

.feature-card:nth-child(3) {
  animation-delay: 0.4s;
}