/* ============================================
   VULKAN TANKS THEME - Industrial Military Red
   ============================================ */

:root {
  /* Primary Colors - Dark Reds & Crimsons */
  --primary-dark: #1a0a0a;
  --primary-red: #8B0000;
  --primary-crimson: #DC143C;
  --primary-blood: #660000;
  --accent-red: #FF2400;
  
  /* Metallic & Industrial */
  --metal-dark: #1c1c1c;
  --metal-mid: #2d2d2d;
  --metal-light: #4a4a4a;
  --steel-gray: #71797E;
  --gunmetal: #2a3439;
  
  /* Text Colors */
  --text-primary: #e8e8e8;
  --text-secondary: #a0a0a0;
  --text-accent: #DC143C;
  
  /* UI Elements */
  --border-color: #8B0000;
  --shadow-color: rgba(139, 0, 0, 0.4);
  --glow-color: rgba(220, 20, 60, 0.6);
}

/* ============================================
   BODY & BACKGROUND
   ============================================ */

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  font-family: 'Segoe UI', 'Roboto', 'Arial', sans-serif;
  background: linear-gradient(135deg, 
    var(--primary-dark) 0%, 
    var(--metal-dark) 25%, 
    #1a0f0f 50%,
    var(--metal-dark) 75%,
    var(--primary-dark) 100%);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.6;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(139, 0, 0, 0.03) 2px,
      rgba(139, 0, 0, 0.03) 4px
    );
  pointer-events: none;
  z-index: -1;
}

/* ============================================
   HEADER
   ============================================ */

.project-header {
  background: linear-gradient(180deg, var(--metal-dark) 0%, var(--gunmetal) 100%);
  border-bottom: 4px solid var(--primary-red);
  padding: 2rem;
  text-align: center;
  position: relative;
  box-shadow: 0 4px 20px var(--shadow-color);
}

.project-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    var(--primary-crimson) 20%, 
    var(--accent-red) 50%, 
    var(--primary-crimson) 80%, 
    transparent 100%);
}

.project-header h1 {
  margin: 0 0 0.5rem 0;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 4px;
  text-shadow: 0 0 20px var(--glow-color), 2px 2px 4px rgba(0, 0, 0, 0.8);
}

.back-link {
  display: inline-block;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--steel-gray);
  border-radius: 4px;
  transition: all 0.3s ease;
  margin-top: 1rem;
}

.back-link:hover {
  color: var(--text-primary);
  border-color: var(--primary-crimson);
  background: rgba(220, 20, 60, 0.1);
  box-shadow: 0 0 10px var(--shadow-color);
}

/* ============================================
   MAIN CONTENT CONTAINER
   ============================================ */

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

/* ============================================
   PREVIEW SECTION
   ============================================ */

.project-preview {
  margin: 2rem 0;
  border-radius: 8px;
  overflow: hidden;
  border: 3px solid var(--primary-red);
  box-shadow: 
    0 0 30px var(--shadow-color),
    inset 0 0 60px rgba(0, 0, 0, 0.5);
  position: relative;
  background: var(--metal-dark);
}

.project-preview::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 2px solid var(--metal-light);
  border-radius: 6px;
  pointer-events: none;
}

.project-preview img,
.project-preview video {
  width: 100%;
  height: auto;
  display: block;
}

.gif-container {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 aspect ratio */
  background: linear-gradient(45deg, var(--metal-dark), var(--gunmetal));
}

.gif-container img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gif-placeholder {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--text-secondary);
  font-size: 1.2rem;
  text-align: center;
}

/* ============================================
   DESCRIPTION SECTION
   ============================================ */

.project-description {
  background: linear-gradient(135deg, var(--metal-dark) 0%, var(--gunmetal) 100%);
  border: 2px solid var(--primary-blood);
  border-left: 5px solid var(--primary-crimson);
  border-radius: 8px;
  padding: 2rem;
  margin: 2rem 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.project-description h2 {
  color: var(--primary-crimson);
  margin: 0 0 1rem 0;
  font-size: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-bottom: 1px solid var(--metal-light);
  padding-bottom: 0.5rem;
}

.project-description p {
  color: var(--text-primary);
  font-size: 1.1rem;
  margin: 0;
  line-height: 1.8;
}

/* ============================================
   TECH STACK
   ============================================ */

.tech-stack {
  margin: 2rem 0;
}

.tech-stack h3 {
  color: var(--text-secondary);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.tech-tag {
  background: linear-gradient(135deg, var(--primary-blood) 0%, var(--primary-red) 100%);
  color: var(--text-primary);
  padding: 0.5rem 1.25rem;
  border-radius: 4px;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: 1px solid var(--primary-crimson);
  box-shadow: 0 2px 10px var(--shadow-color);
  transition: all 0.3s ease;
}

.tech-tag:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px var(--glow-color);
  background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-crimson) 100%);
}

/* ============================================
   LINKS SECTION
   ============================================ */

.project-links {
  margin: 2rem 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  border-radius: 6px;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.project-link.primary {
  background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-crimson) 100%);
  color: var(--text-primary);
  border: 2px solid var(--primary-crimson);
  box-shadow: 0 4px 15px var(--shadow-color);
}

.project-link.primary:hover {
  background: linear-gradient(135deg, var(--primary-crimson) 0%, var(--accent-red) 100%);
  box-shadow: 0 6px 25px var(--glow-color);
  transform: translateY(-3px);
}

.project-link.secondary {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--steel-gray);
}

.project-link.secondary:hover {
  border-color: var(--primary-crimson);
  background: rgba(220, 20, 60, 0.1);
  box-shadow: 0 0 15px var(--shadow-color);
}

/* ============================================
   DECORATIVE ELEMENTS
   ============================================ */

.divider {
  height: 2px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    var(--primary-blood) 20%, 
    var(--primary-crimson) 50%, 
    var(--primary-blood) 80%, 
    transparent 100%);
  margin: 2rem 0;
}

.warning-stripe {
  background: repeating-linear-gradient(
    45deg,
    var(--primary-red),
    var(--primary-red) 10px,
    var(--metal-dark) 10px,
    var(--metal-dark) 20px
  );
  height: 8px;
  margin: 2rem 0;
}

/* ============================================
   HOVER & TRANSITION EFFECTS
   ============================================ */

* {
  transition-property: color, background-color, border-color, box-shadow, transform;
  transition-duration: 0.3s;
  transition-timing-function: ease;
}

/* ============================================
   MEDIA QUERIES
   ============================================ */

@media (max-width: 768px) {
  .project-header h1 {
    font-size: 1.8rem;
    letter-spacing: 2px;
  }

  .project-content {
    padding: 1rem;
  }

  .project-description {
    padding: 1.5rem;
  }

  .project-links {
    flex-direction: column;
  }

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

  .tech-tags {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .project-header h1 {
    font-size: 1.4rem;
  }

  .project-description p {
    font-size: 1rem;
  }

  .tech-tag {
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
  }
}

/* ============================================
   SCROLLBAR STYLING
   ============================================ */

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--metal-dark);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary-blood), var(--primary-red));
  border-radius: 5px;
  border: 2px solid var(--metal-dark);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--primary-red), var(--primary-crimson));
}