:root {
  /* Layout Options */
  --max-width: 900px;
  --header-height: 70px;
  /* Reduced height */

  /* Color Palette - Neon Blue / Cyber Dark */
  --bg-color: #050505;
  --bg-secondary: #0a0a0a;
  --card-bg: #0f0f0f;

  --text-main: #FFFFFF;
  --text-secondary: #d6e4fc;
  --text-muted: #52637D;

  --accent: #00F0FF;
  /* Neon Cyan/Blue */
  --accent-glow: rgba(0, 240, 255, 0.4);
  --accent-dim: rgba(0, 240, 255, 0.05);

  --border: #1F2937;
  --border-light: #334155;

  --code-bg: #0d1117;

  /* Typography */
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: "Space Grotesk", sans-serif;
  --font-mono: "Fira Code", "Consolas", monospace;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  margin: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- VISUALS --- */
.background-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 40px 40px;
  /* Slightly smaller grid */
  opacity: 0.15;
  /* Increased opacity */
  pointer-events: none;
  /* Removed aggressive masking to show grid everywhere */
  mask-image: radial-gradient(circle at center, black 40%, transparent 100%);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- TYPOGRAPHY --- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  color: var(--text-main);
  margin-top: 1.5rem;
  /* Reduced margin */
  margin-bottom: 1rem;
  line-height: 1.2;
}

/* Base sizes for content */
h1 {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.04em;
}

h2 {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-main);
}

/* Main Page Titles (Bigger) */
.page-title,
.post-title {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.05em;
  margin-bottom: 1rem;
  /* Increased margin */
  line-height: 1.1;
  /* Fix for wrapping titles */
}

a {
  color: var(--text-main);
  text-decoration: none;
  transition: all 0.2s ease;
  border-bottom: 1px solid var(--accent-dim);
}

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

p {
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

ul,
ol {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

ol ol {
  list-style-type: lower-alpha;
}

/* --- HEADER --- */
header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
  /* Reduced from 4rem */
  backdrop-filter: blur(10px);
  background: rgba(5, 5, 5, 0.8);
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--text-main);
  border-bottom: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand:hover {
  color: var(--accent);
  border-bottom: none;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-glow);
  animation: pulse 2s infinite;
}

nav {
  display: flex;
  gap: 2rem;
}

nav a {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-secondary);
  border-bottom: none;
}

nav a:hover {
  color: var(--accent);
  text-shadow: 0 0 8px var(--accent-glow);
  border-bottom: none;
}

/* --- COMPONENTS --- */
.hero {
  padding: 2rem 0 3rem;
  /* Significantly reduced padding */
}

/* Post Cards */
.post-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 4rem 2rem;
  /* Vertical gap 4rem, Horizontal gap 2rem */
  align-items: stretch;
  /* Force equal height */
  list-style: none;
  padding: 0;
  margin: 0;
}

.post-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
  height: 100%;
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  z-index: 1;
}

.post-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 4px 20px -10px var(--accent-glow);
  z-index: 10;
}

.post-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 0.5rem;
}

.post-link {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-main);
  border: none;
}

.post-link:hover {
  color: var(--accent);
  border: none;
}

.post-excerpt {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
  line-height: 1.5;
}

/* Post Images & Lightbox */
.content-wrapper img {
  display: block;
  max-width: 75%;
  margin: 1.5rem auto;
  border-radius: 4px;
  border: 1px solid var(--accent);
  cursor: zoom-in;
  transition: transform 0.2s ease;
}

.content-wrapper img:hover {
  box-shadow: 0 0 15px var(--accent-dim);
}

.lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(5, 5, 5, 0.95);
  backdrop-filter: blur(5px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
  animation: fadeIn 0.2s ease-out;
}

.lightbox-image {
  max-width: 95%;
  max-height: 95%;
  border: 1px solid var(--accent);
  border-radius: 4px;
  box-shadow: 0 0 30px var(--accent-glow);
  cursor: default;
  animation: scaleIn 0.2s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes scaleIn {
  from {
    transform: scale(0.9);
  }

  to {
    transform: scale(1);
  }
}

/* --- TABLES --- */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background: var(--card-bg);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
}

th {
  background: var(--bg-secondary);
  text-align: left;
  padding: 1rem;
  border-bottom: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

td {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* --- CODE BLOCKS (Syntax Highlighting) --- */
pre,
code {
  font-family: var(--font-mono);
}

p code,
li code {
  background: var(--border);
  padding: 0.2em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--accent);
}

div.highlight {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin: 1.5rem 0;
  padding: 1rem;
  overflow-x: auto;
}

pre.highlight {
  margin: 0;
  padding: 0;
  border: none;
  background: transparent;
}

/* Syntax Tokens (Rouge/Pygments defaults) */
.highlight .c,
.highlight .cm,
.highlight .c1,
.highlight .cs {
  color: #6E7681;
  font-style: italic;
}

/* Comments */
.highlight .k,
.highlight .kc,
.highlight .kd,
.highlight .kp,
.highlight .kr,
.highlight .kt {
  color: #FF7B72;
}

/* Keywords */
.highlight .s,
.highlight .sa,
.highlight .sb,
.highlight .sc,
.highlight .dl,
.highlight .sd,
.highlight .s2,
.highlight .se,
.highlight .sh,
.highlight .si,
.highlight .sx,
.highlight .sr,
.highlight .s1,
.highlight .ss {
  color: #A5D6FF;
}

/* Strings */
.highlight .n,
.highlight .nb,
.highlight .bp {
  color: #C9D1D9;
}

/* Names/Builtins */
.highlight .nf,
.highlight .fm {
  color: #D2A8FF;
}

/* Functions */
.highlight .nt {
  color: #7EE787;
}

/* Tags */
.highlight .na {
  color: #79C0FF;
}

/* Attributes */
.highlight .m,
.highlight .mb,
.highlight .mf,
.highlight .mh,
.highlight .mi,
.highlight .il,
.highlight .mo,
.highlight .mx {
  color: #79C0FF;
}

/* Numbers */
.highlight .o,
.highlight .ow {
  color: #FF7B72;
}

/* Operators */

/* Animations */
@keyframes pulse {
  0% {
    opacity: 0.5;
    transform: scale(1);
  }

  50% {
    opacity: 1;
    transform: scale(1.2);
  }

  100% {
    opacity: 0.5;
    transform: scale(1);
  }
}

/* Footer */
footer {
  margin-top: 4rem;
  /* Reduced */
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.9rem;
  text-align: center;
}

/* --- ABOUT PAGE --- */
.certs-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.cert-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-left: 2px solid var(--accent);
}

.cert-item strong {
  color: var(--text-main);
  display: block;
  margin-bottom: 0.25rem;
}

/* Responsive */
@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  header {
    height: auto;
    /* Allow header to grow */
    flex-direction: column;
    /* Stack logo and nav */
    padding: 1rem;
    gap: 1rem;
  }

  nav {
    gap: 1.5rem;
    /* Increase gap for touch targets */
    justify-content: center;
    width: 100%;
  }
}

.post-header {
  height: auto;
  /* Override fixed header height */
  position: static;
  /* Override sticky positioning */
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2rem;
  /* Increased padding */
  display: block;
}

.post-meta-header {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}