@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&family=Share+Tech+Mono&display=swap');

:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-card: #161b22;
  --bg-card-hover: #1c2128;
  --border-color: #30363d;
  --border-highlight: #58a6ff;
  
  --accent-cyan: #58a6ff;      /* Primary Accent (Neon Cyan / Blue Team) */
  --accent-blue: #1f6feb;      /* Secondary Accent (Bright Blue) */
  --accent-green: #3fb950;     /* Mint Green (Solved / Easy / Flags) */
  --accent-yellow: #d29922;    /* Amber (Medium) */
  --accent-orange: #f0883e;    /* Orange (Hard) */
  --accent-red: #f85149;       /* Red (Insane / Alert) */
  --accent-purple: #bc8cff;    /* Purple (Tag / Highlight) */

  --text-main: #c9d1d9;
  --text-muted: #8b949e;
  --text-dim: #6e7681;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'Fira Code', 'Share Tech Mono', monospace;
}

/* Base resets & dark mode strictly enforced */
html {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  margin: 0;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(88, 166, 255, 0.06) 0%, transparent 55%),
    radial-gradient(circle at 100% 100%, rgba(63, 185, 80, 0.04) 0%, transparent 40%);
}

.font-mono {
  font-family: var(--font-mono);
}

/* Blue Team Cyber Grid overlay */
.hacker-bg-grid {
  background-size: 36px 36px;
  background-image: 
    linear-gradient(to right, rgba(48, 54, 61, 0.35) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(48, 54, 61, 0.35) 1px, transparent 1px);
}

/* Terminal Header & Cards */
.terminal-window {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(1, 4, 9, 0.6);
  overflow: hidden;
}

.terminal-header {
  background: #161b22;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot-red { background-color: #f85149; }
.dot-yellow { background-color: #d29922; }
.dot-green { background-color: #3fb950; }

.terminal-title {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-left: 12px;
  flex-grow: 1;
}

/* Cyber Glow Badges */
.badge-diff-easy {
  background: rgba(63, 185, 80, 0.15);
  color: var(--accent-green);
  border: 1px solid rgba(63, 185, 80, 0.4);
}
.badge-diff-medium {
  background: rgba(210, 153, 34, 0.15);
  color: var(--accent-yellow);
  border: 1px solid rgba(210, 153, 34, 0.4);
}
.badge-diff-hard {
  background: rgba(240, 136, 62, 0.15);
  color: var(--accent-orange);
  border: 1px solid rgba(240, 136, 62, 0.4);
}
.badge-diff-insane {
  background: rgba(248, 81, 73, 0.15);
  color: var(--accent-red);
  border: 1px solid rgba(248, 81, 73, 0.4);
}

.cyber-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.category-tag {
  background: rgba(88, 166, 255, 0.12);
  color: var(--accent-cyan);
  border: 1px solid rgba(88, 166, 255, 0.3);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

/* Cyber Cards */
.cyber-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  transition: all 0.25s ease-in-out;
  position: relative;
  overflow: hidden;
}

.cyber-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--accent-cyan);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.cyber-card:hover {
  transform: translateY(-3px);
  border-color: rgba(88, 166, 255, 0.5);
  box-shadow: 0 10px 25px -5px rgba(88, 166, 255, 0.15), 0 0 15px rgba(0, 0, 0, 0.6);
  background: var(--bg-card-hover);
}

.cyber-card:hover::before {
  opacity: 1;
}

/* CTF Machine Specs Box */
.ctf-specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
  background: #161b22;
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent-cyan);
  padding: 16px;
  border-radius: 6px;
  margin-bottom: 2rem;
}

.ctf-spec-item {
  display: flex;
  flex-direction: column;
}

.ctf-spec-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.ctf-spec-value {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-main);
  font-weight: 600;
  margin-top: 2px;
}

/* Markdown Content Styling */
.post-content {
  color: var(--text-main);
  font-size: 1.05rem;
  line-height: 1.75;
}

.post-content h1, 
.post-content h2, 
.post-content h3, 
.post-content h4 {
  color: #f0f6fc;
  font-weight: 700;
  margin-top: 2rem;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.post-content h1 {
  font-size: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
  color: var(--accent-cyan);
}

.post-content h2 {
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.post-content h2::before {
  content: '#';
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 1.3rem;
}

.post-content h3 {
  font-size: 1.25rem;
  color: #c9d1d9;
}

.post-content p {
  margin-bottom: 1.25rem;
}

.post-content a {
  color: var(--accent-cyan);
  text-decoration: none;
  border-bottom: 1px dashed var(--accent-cyan);
  transition: all 0.2s ease;
}

.post-content a:hover {
  color: var(--accent-green);
  border-bottom-style: solid;
  text-shadow: 0 0 8px rgba(63, 185, 80, 0.4);
}

.post-content ul, .post-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.post-content ul li {
  list-style-type: disc;
  margin-bottom: 0.5rem;
}

.post-content ul li::marker {
  color: var(--accent-cyan);
}

.post-content blockquote {
  border-left: 4px solid var(--accent-cyan);
  background: rgba(88, 166, 255, 0.08);
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  border-radius: 0 6px 6px 0;
  color: #c9d1d9;
  font-style: italic;
}

/* Code Blocks & Inline Code */
.post-content code:not(pre code) {
  background: rgba(110, 118, 129, 0.2);
  color: var(--accent-green);
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid rgba(63, 185, 80, 0.25);
}

.code-wrapper {
  position: relative;
  margin: 1.5rem 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: #161b22;
}

.code-wrapper-header {
  background: #21262d;
  padding: 6px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.copy-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 3px 8px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.copy-btn:hover {
  background: var(--accent-cyan);
  color: #0d1117;
  border-color: var(--accent-cyan);
  font-weight: 600;
}

.post-content pre {
  margin: 0;
  padding: 1.25rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  color: #c9d1d9;
  background: #0d1117;
}

/* Images & Screenshots in Writeups */
.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  margin: 1.5rem auto;
  display: block;
  box-shadow: 0 8px 24px rgba(1, 4, 9, 0.8);
  cursor: zoom-in;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.post-content img:hover {
  border-color: var(--accent-cyan);
  transform: scale(1.01);
}

.img-caption {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: -1rem;
  margin-bottom: 1.5rem;
}

/* Image Lightbox Modal */
#image-lightbox {
  display: none;
  position: fixed;
  z-index: 9999;
  inset: 0;
  background: rgba(13, 17, 23, 0.94);
  backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  padding: 20px;
}

#image-lightbox.active {
  display: flex;
}

#image-lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 8px;
  border: 1px solid var(--accent-cyan);
  box-shadow: 0 0 30px rgba(88, 166, 255, 0.25);
}

#lightbox-close {
  position: absolute;
  top: 20px;
  right: 25px;
  color: #fff;
  font-size: 2rem;
  font-family: var(--font-mono);
  cursor: pointer;
  background: none;
  border: none;
  opacity: 0.8;
}

#lightbox-close:hover {
  color: var(--accent-cyan);
  opacity: 1;
}

/* Table Styling */
.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

.post-content th {
  background: #161b22;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  text-align: left;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
}

.post-content td {
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  background: rgba(22, 27, 34, 0.5);
}

/* Search input glowing */
.cyber-input {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: 6px;
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  width: 100%;
  transition: all 0.2s ease;
}

.cyber-input:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(88, 166, 255, 0.25);
}

.filter-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-btn:hover, .filter-btn.active {
  background: rgba(88, 166, 255, 0.15);
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}