/* ========================================
   CSS Variables
   ======================================== */
:root {
  /* Colors */
  --color-background: #0a0a0a;
  --color-surface: #1a1a1a;
  --color-primary: #ffffff;
  --color-secondary: #b0b0b0;
  --color-accent: #dc3545; /* Red accent */
  --color-accent-hover: #ff4757;
  --color-border: #333333;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  /* Layout */
  --max-width: 1200px;
  --nav-height: 70px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-background);
  color: var(--color-primary);
  line-height: 1.6;
  font-size: 16px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--color-accent-hover);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
  background-color: var(--color-background);
  border-bottom: 2px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--nav-height);
}

.nav-brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo {
  height: 35px;
  width: auto;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-link {
  color: var(--color-secondary);
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-accent);
  background-color: rgba(220, 53, 69, 0.1);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.hamburger {
  display: block;
  width: 25px;
  height: 2px;
  background-color: var(--color-primary);
  position: relative;
  transition: background-color 0.3s ease;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 25px;
  height: 2px;
  background-color: var(--color-primary);
  transition: transform 0.3s ease;
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  bottom: -8px;
}

.nav-toggle.active .hamburger {
  background-color: transparent;
}

.nav-toggle.active .hamburger::before {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active .hamburger::after {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* ========================================
   Main Content
   ======================================== */
.main-content {
  flex: 1;
  width: 100%;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  padding: var(--spacing-xl) var(--spacing-sm);
  text-align: center;
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
  border-bottom: 2px solid var(--color-border);
}

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

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  background: linear-gradient(135deg, var(--color-accent) 0%, #ffffff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.hero-cta {
  display: inline-flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  justify-content: center;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  border-radius: 6px;
  font-weight: 600;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
  border: 2px solid;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-background);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(220, 53, 69, 0.4);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-surface);
  border-color: var(--color-primary);
}

/* ========================================
   Sections
   ======================================== */
.section {
  padding: var(--spacing-lg) var(--spacing-sm);
}

.section-container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  text-align: center;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-secondary);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* ========================================
   Project Cards
   ======================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.project-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--spacing-md);
  transition: all 0.3s ease;
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(220, 53, 69, 0.2);
  border-color: var(--color-accent);
}

.project-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: var(--spacing-sm);
  background-color: #000;
}

.project-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  color: var(--color-primary);
}

.project-description {
  color: var(--color-secondary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.6;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: var(--spacing-sm);
}

.tag {
  background-color: rgba(220, 53, 69, 0.2);
  color: var(--color-accent);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-size: 0.875rem;
  font-weight: 500;
}

.project-links {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

/* ========================================
   Blog/Devlog
   ======================================== */
.posts-list {
  max-width: 800px;
  margin: 0 auto;
}

.post-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  transition: all 0.3s ease;
}

.post-item:hover {
  border-color: var(--color-accent);
  transform: translateX(4px);
}

.post-item-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.post-item-title a {
  color: var(--color-primary);
}

.post-item-meta {
  color: var(--color-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-sm);
}

.post-item-excerpt {
  color: var(--color-secondary);
  line-height: 1.6;
}

/* ========================================
   Post Content
   ======================================== */
.post,
.page-content {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-sm);
}

.post-header,
.page-header {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--color-border);
}

.post-title,
.page-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  line-height: 1.2;
}

.post-meta {
  color: var(--color-secondary);
  font-size: 0.875rem;
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: var(--spacing-xs);
}

.post-content,
.page-body {
  font-size: 1.125rem;
  line-height: 1.8;
}

.post-content h2,
.page-body h2 {
  font-size: 2rem;
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.post-content h3,
.page-body h3 {
  font-size: 1.5rem;
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.post-content p,
.page-body p {
  margin-bottom: var(--spacing-sm);
}

.post-content ul,
.post-content ol,
.page-body ul,
.page-body ol {
  margin-bottom: var(--spacing-sm);
  padding-left: var(--spacing-md);
}

.post-content code,
.page-body code {
  background-color: var(--color-surface);
  padding: 0.2rem 0.4rem;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.post-content pre,
.page-body pre {
  background-color: var(--color-surface);
  padding: var(--spacing-sm);
  border-radius: 6px;
  overflow-x: auto;
  margin-bottom: var(--spacing-sm);
  border: 1px solid var(--color-border);
}

.post-content pre code,
.page-body pre code {
  background-color: transparent;
  padding: 0;
}

.post-footer {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  border-top: 2px solid var(--color-border);
}

.back-to-devlog {
  color: var(--color-accent);
  font-weight: 600;
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
  background-color: var(--color-background);
  border-top: 2px solid var(--color-border);
  padding: var(--spacing-md) var(--spacing-sm);
  margin-top: auto;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.footer-text {
  color: var(--color-secondary);
  font-size: 0.875rem;
}

.footer-links {
  display: flex;
  gap: var(--spacing-sm);
}

.footer-link {
  color: var(--color-secondary);
  font-size: 0.875rem;
}

.footer-link:hover {
  color: var(--color-accent);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  
  .nav-menu {
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background-color: var(--color-background);
    flex-direction: column;
    padding: var(--spacing-sm);
    border-bottom: 2px solid var(--color-border);
    display: none;
  }
  
  .nav-menu.active {
    display: flex;
  }
  
  .nav-link {
    width: 100%;
    text-align: center;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .post-title,
  .page-title {
    font-size: 2rem;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
  }
  
  .hero-title {
    font-size: 1.75rem;
  }
  
  .btn {
    padding: 0.625rem 1.5rem;
    font-size: 0.875rem;
  }
}