/* CSS Custom Properties for Theme Colors */
:root {
  /* Light theme colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f5;
  --bg-tertiary: #e8e8e8;
  --text-primary: #1a1a1a;
  --text-secondary: #4a4a4a;
  --text-tertiary: #6a6a6a;
  --accent-primary: #00ff41;
  --accent-secondary: #00cc33;
  --accent-tertiary: #009926;
  --border-color: #d0d0d0;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --terminal-bg: #f8f8f8;
  --terminal-border: #cccccc;
  --link-color: #00cc33;
  --link-hover: #00ff41;
}

/* Dark theme colors */
[data-theme="dark"] {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --text-primary: #f0f6fc;
  --text-secondary: #c9d1d9;
  --text-tertiary: #8b949e;
  --accent-primary: #00ff41;
  --accent-secondary: #00cc33;
  --accent-tertiary: #009926;
  --border-color: #30363d;
  --shadow-color: rgba(0, 0, 0, 0.3);
  --terminal-bg: #0d1117;
  --terminal-border: #30363d;
  --link-color: #00ff41;
  --link-hover: #39ff14;
}

/* Auto-detect system preference if no theme is explicitly set */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --text-primary: #f0f6fc;
    --text-secondary: #c9d1d9;
    --text-tertiary: #8b949e;
    --accent-primary: #00ff41;
    --accent-secondary: #00cc33;
    --accent-tertiary: #009926;
    --border-color: #30363d;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --terminal-bg: #0d1117;
    --terminal-border: #30363d;
    --link-color: #00ff41;
    --link-hover: #39ff14;
  }
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family:
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition:
    background-color 0.3s ease,
    color 0.3s ease;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

/* Links */
a {
  color: var(--link-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--link-hover);
  text-shadow: 0 0 5px var(--link-hover);
}

/* Terminal/Code Styling */
code,
pre {
  font-family: "JetBrains Mono", "Fira Code", "Consolas", monospace;
  background-color: var(--terminal-bg);
  border: 1px solid var(--terminal-border);
  border-radius: 4px;
}

code {
  padding: 0.2rem 0.4rem;
  font-size: 0.9rem;
  color: var(--accent-primary);
}

pre {
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1rem;
  position: relative;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--text-primary);
}

/* Terminal prompt styling */
.terminal-prompt::before {
  content: "$ ";
  color: var(--accent-primary);
  font-weight: 500;
}

/* Container and Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header Styles */
.site-header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

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

.site-logo {
  font-family: "JetBrains Mono", monospace;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-shadow: 0 0 10px var(--accent-primary);
}

.site-logo:hover {
  text-shadow: 0 0 15px var(--accent-primary);
}

/* Navigation Controls */
.nav-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Mobile Navigation Toggle */
.mobile-nav-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  gap: 4px;
  z-index: 101;
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: all 0.3s ease;
  transform-origin: center;
}

/* Hamburger animation */
.mobile-nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Navigation */
.main-nav .nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.main-nav a {
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
  color: var(--text-primary);
}

.main-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-primary);
  transition: width 0.3s ease;
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

/* Theme Toggle Button */
.theme-toggle {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: "JetBrains Mono", monospace;
}

.theme-toggle:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  box-shadow: 0 0 10px var(--accent-primary);
}

/* Main Content */
main {
  min-height: calc(100vh - 120px);
  padding: 2rem 0;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 4rem 0;
  background: linear-gradient(
    135deg,
    var(--bg-primary) 0%,
    var(--bg-secondary) 100%
  );
}

.hero h1 {
  font-family: "JetBrains Mono", monospace;
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--accent-primary);
  text-shadow: 0 0 20px var(--accent-primary);
  animation: glow 6s ease-in-out infinite alternate;
}

@keyframes glow {
  from {
    text-shadow: 0 0 20px var(--accent-primary);
  }

  to {
    text-shadow:
      0 0 30px var(--accent-primary),
      0 0 40px var(--accent-primary);
  }
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background-color: transparent;
  border: 2px solid var(--accent-primary);
  color: var(--accent-primary);
  text-decoration: none;
  border-radius: 4px;
  font-weight: 500;
  transition: all 0.3s ease;
  font-family: "JetBrains Mono", monospace;
}

.btn:hover {
  background-color: var(--accent-primary);
  color: var(--bg-primary);
  box-shadow: 0 0 20px var(--accent-primary);
  transform: translateY(-2px);
}

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

.btn-primary:hover {
  background-color: var(--accent-secondary);
  border-color: var(--accent-secondary);
  box-shadow: 0 0 25px var(--accent-secondary);
}

/* Cards */
.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(
    90deg,
    var(--accent-primary),
    var(--accent-secondary)
  );
}

.card:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 4px 20px var(--shadow-color);
  transform: translateY(-2px);
}

/* Grid Layout */
.grid {
  display: grid;
  gap: 2rem;
  margin: 2rem 0;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Blog Styles */
.post-meta {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.9rem;
  color: var(--text-tertiary);
  margin-bottom: 1rem;
}

.post-meta .date {
  color: var(--accent-primary);
}

.post-content {
  line-height: 1.8;
}

.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  margin: 1rem 0;
}

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

.footer-content {
  font-family: "JetBrains Mono", monospace;
  color: var(--text-tertiary);
}

/* Responsive Design */
@media (max-width: 768px) {
  /* Mobile Header */
  .header-content {
    position: relative;
  }

  .mobile-nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--bg-primary);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }

  .main-nav.active {
    transform: translateX(0);
  }

  .main-nav .nav-menu {
    flex-direction: column;
    gap: 2rem;
    text-align: center;
  }

  .main-nav .nav-menu li {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
  }

  .main-nav.active .nav-menu li {
    opacity: 1;
    transform: translateY(0);
  }

  .main-nav.active .nav-menu li:nth-child(1) {
    transition-delay: 0.1s;
  }

  .main-nav.active .nav-menu li:nth-child(2) {
    transition-delay: 0.2s;
  }

  .main-nav.active .nav-menu li:nth-child(3) {
    transition-delay: 0.3s;
  }

  .main-nav.active .nav-menu li:nth-child(4) {
    transition-delay: 0.4s;
  }

  .main-nav.active .nav-menu li:nth-child(5) {
    transition-delay: 0.5s;
  }

  .main-nav a {
    font-size: 1.5rem;
    padding: 1rem 0;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .container {
    padding: 0 0.5rem;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 2rem 0;
  }

  .hero h1 {
    font-size: 1.5rem;
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for accessibility */
:focus {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --shadow-color: rgba(0, 0, 0, 0.5);
  }

  .card {
    border-width: 2px;
  }
}