:root {
  --bg:             #080c14;
  --bg-card:        #0d1117;
  --bg-card-hover:  #111827;
  --bg-nav:         rgba(8, 12, 20, 0.96);
  --border:         #1a2744;
  --border-bright:  #243a5e;
  --green:          #00ff41;
  --green-dim:      #00c832;
  --cyan:           #00d4ff;
  --cyan-dim:       #0099cc;
  --purple:         #bd93f9;
  --red:            #ff5555;
  --yellow:         #f1fa8c;
  --orange:         #ffb86c;
  --text:           #cdd6f4;
  --text-dim:       #6c7086;
  --text-muted:     #45475a;
  --text-bright:    #f5f5f5;
  --font-mono:      'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  --font-ui:        'Inter', system-ui, sans-serif;
  --glow-green:     0 0 12px rgba(0, 255, 65, 0.35);
  --glow-cyan:      0 0 12px rgba(0, 212, 255, 0.35);
  --radius:         4px;
  --transition:     0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.025) 2px,
    rgba(0, 0, 0, 0.025) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--cyan-dim); }

a { color: var(--cyan); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--green); }

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-nav);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 54px;
}

.nav-brand {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: 0.03em;
}
.nav-brand .brand-hash { color: var(--green); }

.nav-links {
  display: flex;
  gap: 0.25rem;
  list-style: none;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-dim);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: all var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--cyan);
  border-color: var(--border-bright);
  background: rgba(0, 212, 255, 0.05);
}

.hero {
  padding: 5rem 2rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 50% 0%, rgba(0, 212, 255, 0.09) 0%, transparent 65%),
    radial-gradient(ellipse 40% 30% at 85% 60%, rgba(0, 255, 65, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

.hero-title {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 4.5vw, 3rem);
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
  position: relative;
  z-index: 1;
}
.hero-title .prompt { color: var(--green); }
.hero-title .path   { color: var(--cyan); }
.hero-title .dollar { color: var(--text-dim); }

.cursor {
  display: inline-block;
  width: 0.55em;
  height: 1.1em;
  background: var(--green);
  vertical-align: text-bottom;
  margin-left: 4px;
  animation: blink 1s step-end infinite;
  border-radius: 1px;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

.hero-subtitle {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  position: relative;
  z-index: 1;
}
.hero-subtitle .hl { color: var(--cyan); }

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.5rem 5rem;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}
.section-label span { color: var(--green); }

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.filter-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.28rem 0.72rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-bright);
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  transition: all var(--transition);
  user-select: none;
  letter-spacing: 0.04em;
}
.filter-tag:hover {
  border-color: var(--cyan-dim);
  color: var(--cyan);
  background: rgba(0, 212, 255, 0.06);
}
.filter-tag.active {
  border-color: var(--green);
  color: var(--green);
  background: rgba(0, 255, 65, 0.08);
  box-shadow: var(--glow-green);
}
.filter-tag[data-tag="all"].active {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 212, 255, 0.08);
  box-shadow: var(--glow-cyan);
}

#posts-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.3rem 1.5rem 1.3rem 1.7rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.post-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--border);
  transition: background var(--transition), box-shadow var(--transition);
}
.post-card:hover {
  border-color: var(--border-bright);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}
.post-card:hover::before {
  background: var(--cyan);
  box-shadow: var(--glow-cyan);
}
.post-card.hidden { display: none; }

.post-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}
.post-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
}
.post-tags {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.67rem;
  font-weight: 500;
  padding: 0.12rem 0.5rem;
  border-radius: 2px;
  letter-spacing: 0.04em;
  text-transform: lowercase;
}
.tag-ctf     { background: rgba(189,147,249,0.12); color: var(--purple);   border: 1px solid rgba(189,147,249,0.28); }
.tag-cve     { background: rgba(255, 85, 85,0.10); color: var(--red);      border: 1px solid rgba(255, 85, 85,0.25); }
.tag-htb     { background: rgba(  0,255, 65,0.09); color: var(--green);    border: 1px solid rgba(  0,255, 65,0.25); }
.tag-web     { background: rgba(  0,212,255,0.09); color: var(--cyan);     border: 1px solid rgba(  0,212,255,0.25); }
.tag-pwn     { background: rgba(255,184,108,0.11); color: var(--orange);   border: 1px solid rgba(255,184,108,0.25); }
.tag-rev,
.tag-reversing { background: rgba(241,250,140,0.09); color: var(--yellow);   border: 1px solid rgba(241,250,140,0.22); }
.tag-linux   { background: rgba(  0,200, 50,0.08); color: var(--green-dim);border: 1px solid rgba(  0,200, 50,0.22); }
.tag-privesc { background: rgba(255, 85, 85,0.09); color: #ff8080;         border: 1px solid rgba(255, 85, 85,0.20); }
.tag-windows { background: rgba(  0,212,255,0.07); color: #7ec8e3;         border: 1px solid rgba(  0,212,255,0.20); }
.tag-crypto  { background: rgba(241,250,140,0.08); color: #e8e87a;         border: 1px solid rgba(241,250,140,0.20); }
.tag-forensics{ background: rgba(255,184,108,0.09); color: #e8b472;        border: 1px solid rgba(255,184,108,0.22); }
.tag-misc,
.tag-meta    { background: rgba(108,112,134,0.18); color: #a6adc8;         border: 1px solid rgba(108,112,134,0.30); }
.tag-default { background: rgba(108,112,134,0.14); color: var(--text-dim); border: 1px solid var(--border-bright);   }

.post-title {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 0.4rem;
  line-height: 1.4;
  transition: color var(--transition);
}
.post-card:hover .post-title { color: var(--cyan); }

.post-excerpt {
  font-size: 0.86rem;
  color: var(--text-dim);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.no-results {
  text-align: center;
  padding: 3rem 1rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.9rem;
}
.no-results .accent { color: var(--red); }

.loading {
  text-align: center;
  padding: 3rem 1rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
  font-size: 0.88rem;
}
.error-msg {
  text-align: center;
  padding: 3rem 1rem;
  font-family: var(--font-mono);
  color: var(--red);
  font-size: 0.88rem;
}

.post-header {
  padding: 2.5rem 0 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem;
}
.post-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  transition: color var(--transition);
}
.post-back:hover { color: var(--cyan); }
.post-back::before { content: '← '; }

.post-page-title {
  font-family: var(--font-mono);
  font-size: clamp(1.3rem, 3.5vw, 1.9rem);
  font-weight: 700;
  color: var(--text-bright);
  line-height: 1.3;
  margin-bottom: 1rem;
}
.post-page-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.post-content {
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--text);
}
.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4 {
  font-family: var(--font-mono);
  color: var(--text-bright);
  margin: 2.5rem 0 1rem;
  font-weight: 600;
  line-height: 1.3;
}
.post-content h1 {
  font-size: 1.65rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
  margin-top: 1rem;
}
.post-content h2 { font-size: 1.25rem; color: var(--cyan); }
.post-content h2::before { content: '## '; color: var(--text-muted); font-size: 0.85em; }
.post-content h3 { font-size: 1.05rem; color: var(--green); }
.post-content h3::before { content: '### '; color: var(--text-muted); font-size: 0.85em; }
.post-content h4 { font-size: 0.95rem; color: var(--yellow); }

.post-content p { margin-bottom: 1.2rem; }
.post-content a {
  color: var(--cyan);
  border-bottom: 1px solid rgba(0, 212, 255, 0.3);
  transition: all var(--transition);
}
.post-content a:hover { color: var(--green); border-color: var(--green); }
.post-content strong { color: var(--text-bright); font-weight: 600; }
.post-content em     { color: var(--yellow); font-style: italic; }

.post-content ul,
.post-content ol { margin: 0.8rem 0 1.2rem 1.6rem; }
.post-content li { margin-bottom: 0.3rem; }

.post-content blockquote {
  border-left: 3px solid var(--cyan);
  padding: 0.6rem 1.1rem;
  margin: 1.5rem 0;
  background: rgba(0, 212, 255, 0.04);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--text-dim);
  font-style: italic;
}

.post-content :not(pre) > code {
  font-family: var(--font-mono);
  font-size: 0.84em;
  background: rgba(0, 255, 65, 0.08);
  color: var(--green);
  padding: 0.14em 0.45em;
  border-radius: 3px;
  border: 1px solid rgba(0, 255, 65, 0.15);
}

.post-content pre {
  background: #050810;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  position: relative;
}

.post-content pre::before {
  content: '● ● ●';
  display: block;
  font-size: 0.6rem;
  color: var(--border-bright);
  letter-spacing: 0.3em;
  margin-bottom: 0.8rem;
}
.post-content pre code {
  background: transparent !important;
  border: none !important;
  color: var(--text);
  font-size: 0.875rem;
  padding: 0;
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-family: var(--font-mono);
  font-size: 0.83rem;
}
.post-content th {
  background: rgba(0, 212, 255, 0.07);
  color: var(--cyan);
  padding: 0.55rem 1rem;
  text-align: left;
  border: 1px solid var(--border);
  font-weight: 600;
  letter-spacing: 0.04em;
}
.post-content td {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
}
.post-content tr:nth-child(even) td { background: rgba(255,255,255,0.015); }
.post-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

.hljs { background: transparent !important; }

.about-page-hero {
  padding: 3rem 0 1.5rem;
}
.about-page-title {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 0.5rem;
}
.about-page-title .accent { color: var(--green); }

.about-bio {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--green);
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
  margin: 1.5rem 0 2rem;
  font-family: var(--font-mono);
  font-size: 0.87rem;
  line-height: 2;
}
.about-bio .comment  { color: var(--text-muted); }
.about-bio .key      { color: var(--cyan); }
.about-bio .val-str  { color: var(--yellow); }
.about-bio .val-arr  { color: var(--purple); }
.about-bio .val-bool { color: var(--green); }
.about-bio .punc     { color: var(--text-dim); }

.about-section-title {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-bright);
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.about-section-title .accent { color: var(--green); }

.focus-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.focus-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  transition: border-color var(--transition), transform var(--transition);
}
.focus-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-2px);
}
.focus-card-label {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}
.focus-card-text {
  font-size: 0.83rem;
  color: var(--text-dim);
  line-height: 1.6;
}

.about-bio-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
  padding: 1.75rem 2rem;
  margin: 1.5rem 0 2rem;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.about-bio-card strong {
  color: var(--cyan);
  font-weight: 600;
}

.about-contact-label {
  margin-top: 0.5rem;
}

.contact-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}
.contact-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  flex: 1;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-dim);
  padding: 0.65rem 1.2rem;
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  transition: all var(--transition);
}
.contact-link i {
  font-size: 1rem;
}
.contact-link:hover {
  color: var(--cyan);
  border-color: var(--cyan-dim);
  background: rgba(0, 212, 255, 0.05);
  box-shadow: var(--glow-cyan);
  transform: translateY(-1px);
}

.theme-toggle-btn {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  padding: 0.3rem 0.65rem;
  cursor: pointer;
  transition: all var(--transition);
  margin-left: 0.5rem;
}
.theme-toggle-btn:hover {
  color: var(--cyan);
  border-color: var(--cyan-dim);
  background: rgba(0, 212, 255, 0.05);
}

html[data-theme="light"] {
  --bg:             #f0f4f8;
  --bg-card:        #ffffff;
  --bg-card-hover:  #f1f5f9;
  --bg-nav:         rgba(240, 244, 248, 0.96);
  --border:         #dde3ed;
  --border-bright:  #b8c5d6;
  --green:          #16a34a;
  --green-dim:      #15803d;
  --cyan:           #0284c7;
  --cyan-dim:       #0369a1;
  --purple:         #7c3aed;
  --red:            #dc2626;
  --yellow:         #92400e;
  --orange:         #c2410c;
  --text:           #1e293b;
  --text-dim:       #475569;
  --text-muted:     #64748b;
  --text-bright:    #0f172a;
  --glow-green:     0 0 12px rgba(22, 163, 74, 0.25);
  --glow-cyan:      0 0 12px rgba(2, 132, 199, 0.25);
}
html[data-theme="light"] body::before { display: none; }
html[data-theme="light"] .hero::before {
  background-image:
    linear-gradient(rgba(2, 132, 199, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(2, 132, 199, 0.06) 1px, transparent 1px);
}
html[data-theme="light"] .post-content pre { background: #f8fafc; }

footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 2rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.73rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}
footer .accent { color: var(--green); }

@media (max-width: 640px) {
  .nav  { padding: 0 1rem; }
  .hero { padding: 3rem 1rem 2.5rem; }
  .container { padding: 0 1rem 3rem; }
  .focus-grid { grid-template-columns: 1fr; }
  .post-card  { padding: 1rem 1.1rem 1rem 1.4rem; }
  .hero-title { font-size: 1.5rem; }
}