/* ========================================
   THM Writeups · George Nădejde
   Matches main portfolio aesthetic
   ======================================== */

:root {
  --bg: #0a0d0f;
  --bg-dark: #060809;
  --bg-card: #0f1419;
  --border: #1e2a35;
  --border-bright: #2a3d50;
  --green: #00ff88;
  --green-dim: #00cc6a;
  --green-glow: rgba(0,255,136,0.15);
  --cyan: #00d4ff;
  --red: #ff3b3b;
  --yellow: #ffd60a;
  --purple: #a855f7;
  --text: #c8d8e8;
  --text-dim: #6a7f8f;
  --text-bright: #e8f0f8;
  --font-mono: 'JetBrains Mono', monospace;
  --font-sans: 'Syne', sans-serif;
  --radius: 6px;
  --transition: 0.25s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  background:
    radial-gradient(ellipse at 50% 0%, rgba(0,255,136,0.05) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 50%, rgba(0,212,255,0.04) 0%, transparent 50%),
    #0a0d0f;
  color: var(--text);
  font-family: var(--font-mono);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; border-radius: var(--radius); }

/* Background effects */
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,255,136,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,136,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}
.scanlines {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0,0,0,0.03) 2px, rgba(0,0,0,0.03) 4px
  );
}
nav, main, footer { position: relative; z-index: 2; }

/* Navbar */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 0 2rem;
  background: rgba(6,8,9,0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
}
.nav-logo { font-family: var(--font-mono); color: var(--green); font-size: 0.95rem; }
.nav-right { display: flex; gap: 0.25rem; align-items: center; }
.nav-link {
  font-size: 0.8rem; color: var(--text-dim);
  padding: 0.4rem 0.75rem; border-radius: var(--radius);
  transition: var(--transition);
}
.nav-link:hover { color: var(--green); background: var(--green-glow); }
.cmd-prefix { color: var(--green-dim); }
.cursor-blink { display: inline-block; color: var(--green); animation: blink 1s step-end infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

/* Container */
.container { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }

/* ---- INDEX PAGE ---- */
.index-main { padding: 100px 0 4rem; }

.index-header { margin-bottom: 2rem; }
.section-tag { font-size: 0.8rem; color: var(--green); display: block; margin-bottom: 0.75rem; opacity: 0.8; }
.index-title {
  font-family: var(--font-sans); font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800; color: var(--text-bright); letter-spacing: -1.5px;
  margin-bottom: 0.5rem;
}
.index-desc { font-size: 0.9rem; color: var(--text-dim); max-width: 600px; }

/* Stats */
.stats-bar { display: flex; gap: 2rem; margin-bottom: 1.5rem; }
.stat { display: flex; align-items: baseline; gap: 0.5rem; }
.stat .stat-num { font-family: var(--font-sans); font-size: 1.5rem; font-weight: 800; color: var(--green); }
.stat .stat-label { font-size: 0.75rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }

/* Search */
.search-bar {
  display: flex; align-items: center; gap: 0.25rem;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 0.6rem 1rem;
  margin-bottom: 1rem; transition: var(--transition);
}
.search-bar:focus-within { border-color: var(--green); box-shadow: 0 0 12px var(--green-glow); }
.search-prefix, .search-suffix { font-size: 0.85rem; color: var(--green); white-space: nowrap; }
.search-input {
  flex: 1; background: none; border: none; outline: none;
  color: var(--text); font-family: var(--font-mono); font-size: 0.85rem;
  padding: 0 0.25rem;
}
.search-input::placeholder { color: var(--text-dim); }

/* Tag filter */
.tag-filter {
  display: flex; align-items: center; gap: 0.75rem;
  margin-bottom: 1.5rem; flex-wrap: wrap;
}
.tag-filter-label { font-size: 0.75rem; color: var(--green); white-space: nowrap; }
.tag-list { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tag-btn {
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--text-dim); background: var(--bg-card);
  border: 1px solid var(--border); border-radius: 4px;
  padding: 0.25rem 0.6rem; cursor: pointer;
  transition: var(--transition);
}
.tag-btn:hover { color: var(--cyan); border-color: var(--cyan); }
.tag-btn.active { color: var(--green); border-color: var(--green); background: var(--green-glow); }

/* Writeup list */
.writeup-list { display: flex; flex-direction: column; gap: 0.4rem; }
.writeup-item {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 0.85rem 1.25rem;
  transition: var(--transition); gap: 1rem;
}
.writeup-item:hover { border-color: var(--green-dim); transform: translateX(4px); }
.writeup-item:hover .writeup-arrow { color: var(--green); }
.writeup-item-left { display: flex; align-items: center; gap: 0.75rem; min-width: 0; }
.writeup-arrow { color: var(--text-dim); font-size: 0.8rem; transition: var(--transition); flex-shrink: 0; }
.writeup-info { display: flex; flex-direction: column; min-width: 0; }
.writeup-name { font-size: 0.9rem; color: var(--text-bright); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.writeup-desc { font-size: 0.75rem; color: var(--text-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 0.1rem; }
.writeup-item-right { display: flex; align-items: center; gap: 0.4rem; flex-shrink: 0; flex-wrap: wrap; justify-content: flex-end; }

/* Tag pills */
.tag-pill {
  font-size: 0.65rem; font-weight: 600;
  color: var(--cyan); background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.2);
  padding: 0.15rem 0.5rem; border-radius: 4px;
  white-space: nowrap; letter-spacing: 0.3px;
}

/* Platform badge */
.platform-badge {
  font-size: 0.7rem; font-weight: 700;
  color: #1db954; background: rgba(29,185,84,0.1);
  border: 1px solid rgba(29,185,84,0.25);
  padding: 0.2rem 0.6rem; border-radius: 4px;
}

/* No results */
.no-results { padding: 2rem; color: var(--red); font-size: 0.9rem; }

/* ---- WRITEUP PAGE ---- */
.writeup-main { padding: 100px 0 4rem; }

.breadcrumb {
  font-size: 0.8rem; color: var(--text-dim);
  margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.5rem;
}
.breadcrumb a { color: var(--green); transition: var(--transition); }
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb-sep { color: var(--text-dim); }

.writeup-header { margin-bottom: 1.5rem; }
.terminal-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 16px; background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius) var(--radius) 0 0;
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-red { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green { background: #28c840; }
.terminal-title { margin-left: auto; font-size: 0.75rem; color: var(--text-dim); }
.writeup-meta {
  display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap;
  padding: 0.75rem 1rem; background: var(--bg-card);
  border: 1px solid var(--border); border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
}
.writeup-meta-desc {
  font-size: 0.8rem; color: var(--text-dim);
  margin-left: 0.5rem; font-style: italic;
}

/* Markdown content */
.writeup-content {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 2.5rem;
}
.writeup-content h1 {
  font-family: var(--font-sans); font-size: 1.8rem; font-weight: 800;
  color: var(--text-bright); margin: 0 0 1.5rem;
  padding-bottom: 0.75rem; border-bottom: 1px solid var(--border);
}
.writeup-content h2 {
  font-family: var(--font-sans); font-size: 1.25rem; font-weight: 700;
  color: var(--cyan); margin: 2rem 0 0.75rem;
  padding-bottom: 0.4rem; border-bottom: 1px solid var(--border);
}
.writeup-content h3 {
  font-family: var(--font-sans); font-size: 1.05rem; font-weight: 700;
  color: var(--text-bright); margin: 1.5rem 0 0.5rem;
}
.writeup-content h4 {
  font-size: 0.95rem; font-weight: 600;
  color: var(--green); margin: 1.25rem 0 0.4rem;
}
.writeup-content p { font-size: 0.92rem; color: var(--text); margin-bottom: 1rem; }
.writeup-content a { color: var(--green); border-bottom: 1px solid var(--green-dim); transition: var(--transition); }
.writeup-content a:hover { color: var(--cyan); border-color: var(--cyan); }
.writeup-content strong { color: var(--text-bright); font-weight: 600; }
.writeup-content em { color: var(--text-dim); font-style: italic; }
.writeup-content ul, .writeup-content ol { padding-left: 1.5rem; margin-bottom: 1rem; }
.writeup-content li { font-size: 0.92rem; color: var(--text); margin-bottom: 0.3rem; }
.writeup-content li::marker { color: var(--green); }
.writeup-content blockquote {
  border-left: 3px solid var(--green); padding: 0.5rem 1rem;
  margin: 1rem 0; color: var(--text-dim); font-style: italic;
  background: rgba(0,255,136,0.03); border-radius: 0 var(--radius) var(--radius) 0;
}
.writeup-content hr { border: none; border-top: 1px solid var(--border); margin: 2rem 0; }
.writeup-content img {
  max-width: 100%; border-radius: var(--radius);
  border: 1px solid var(--border); margin: 1.25rem auto;
  display: block; box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}
.writeup-content table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 0.85rem; overflow-x: auto; display: block; }
.writeup-content th {
  background: rgba(0,255,136,0.08); color: var(--green);
  padding: 0.6rem 1rem; text-align: left;
  border: 1px solid var(--border); font-weight: 600;
}
.writeup-content td { padding: 0.6rem 1rem; border: 1px solid var(--border); color: var(--text); }
.writeup-content tr:nth-child(even) td { background: rgba(255,255,255,0.02); }

/* Code */
.writeup-content code {
  font-family: var(--font-mono); font-size: 0.82rem;
  color: var(--cyan); background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.15);
  padding: 0.15rem 0.4rem; border-radius: 4px;
}
.writeup-content pre {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem 1.5rem;
  overflow-x: auto; margin: 1rem 0;
  box-shadow: inset 0 0 20px rgba(0,0,0,0.3);
  position: relative;
}
.writeup-content pre::before {
  content: '$ '; color: var(--green); font-size: 0.8rem;
}
.writeup-content pre code {
  color: var(--text); background: none; border: none;
  padding: 0; font-size: 0.85rem; line-height: 1.6;
}

/* Footer nav */
.writeup-footer-nav {
  margin-top: 2rem; padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.btn-ghost {
  display: inline-block; font-family: var(--font-mono); font-size: 0.85rem;
  color: var(--green); border: 1px solid var(--border-bright);
  padding: 0.6rem 1.25rem; border-radius: var(--radius);
  transition: var(--transition);
}
.btn-ghost:hover { border-color: var(--green); box-shadow: 0 0 12px var(--green-glow); }

/* Footer */
.site-footer {
  background: var(--bg-dark); border-top: 1px solid var(--border);
  padding: 1.5rem 2rem; position: relative; z-index: 2;
  margin-top: 2rem;
}
.footer-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}
.footer-text { font-size: 0.8rem; color: var(--text-dim); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { font-size: 0.8rem; color: var(--text-dim); transition: var(--transition); }
.footer-links a:hover { color: var(--green); }
.prompt { color: var(--green); }

/* Responsive */
@media (max-width: 768px) {
  .writeup-item-right { display: none; }
  .writeup-content { padding: 1.25rem; }
  .tag-filter { flex-direction: column; align-items: flex-start; }
  .footer-inner { flex-direction: column; }
  .writeup-content pre::before { content: ''; }
}

.tag-more {
  font-size: 0.65rem; font-weight: 600;
  color: var(--text-dim); background: var(--bg);
  border: 1px solid var(--border);
  padding: 0.15rem 0.5rem; border-radius: 4px;
  white-space: nowrap;
}

.tag-list.expanded { max-height: 500px; }

.tag-list {
  display: flex; 
  flex-wrap: wrap; 
  gap: 0.4rem;
  max-height: 100px; 
  overflow: hidden;
  transition: max-height 0.4s ease;
  flex: 1; /* Allows the list to take up available space */
}

.tag-expand-btn {
  font-family: var(--font-mono); 
  font-size: 0.7rem;
  color: var(--green); 
  background: var(--bg-card);
  border: 1px solid var(--green-dim); 
  border-radius: 4px;
  padding: 0.25rem 0.6rem; 
  cursor: pointer;
  transition: var(--transition); 
  white-space: nowrap;
  margin-bottom: 0.4rem; 
  height: fit-content;
}

.tag-expand-btn:hover { background: var(--green-glow); }