/* ═══════════════════════════════════════════════
   THEME — Dark terminal aesthetic
   ═══════════════════════════════════════════════ */

:root {
  --bg:         #0a0a0f;
  --bg-card:    #12121a;
  --bg-terminal:#0d0d14;
  --border:     #1e1e2e;
  --border-glow:#2d2d4a;
  --text:       #c9ccd5;
  --text-dim:   #6b7084;
  --text-bright:#f0f1f5;
  --accent:     #00ff88;
  --accent-dim: #00cc6a;
  --accent2:    #7c6aff;
  --accent3:    #ff6b6b;
  --mono:       'JetBrains Mono', 'Fira Code', monospace;
  --sans:       'Inter', -apple-system, system-ui, sans-serif;
}

/* ═══ Reset & Base ═══ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

a { color: var(--accent); text-decoration: none; transition: all 0.2s; }
a:hover { color: var(--text-bright); }

::selection { background: var(--accent); color: var(--bg); }

/* ═══ Background Effects ═══ */
.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

.scanline {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.15;
  animation: scanline 8s ease-in-out infinite;
  z-index: 100;
  pointer-events: none;
}

@keyframes scanline {
  0%, 100% { top: -4px; opacity: 0; }
  10% { opacity: 0.15; }
  90% { opacity: 0.15; }
  50% { top: 100vh; }
}

/* ═══ Navigation ═══ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 40px;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.5px;
}

.logo-bracket { color: var(--accent); }

.nav-links { display: flex; gap: 32px; }

.nav-link {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--text-dim);
  letter-spacing: 0.5px;
  padding: 4px 0;
  position: relative;
}

.nav-link:hover, .nav-link.active { color: var(--accent); }

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--accent);
}

/* ═══ Layout ═══ */
.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ═══ Hero / Terminal ═══ */
.hero {
  padding: 80px 0 60px;
}

.hero-terminal {
  background: var(--bg-terminal);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px var(--border),
    0 8px 32px rgba(0, 0, 0, 0.4),
    0 0 60px rgba(0, 255, 136, 0.03);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27c93f; }

.terminal-title {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
  margin-left: 8px;
}

.terminal-body {
  padding: 24px;
  font-family: var(--mono);
  font-size: 15px;
  line-height: 2;
}

.terminal-line { color: var(--text-dim); }
.prompt { color: var(--accent); margin-right: 8px; }
.terminal-output { color: var(--text-bright); padding-left: 20px; }

.blink-cursor {
  animation: blink 1s step-end infinite;
  color: var(--accent);
}

@keyframes blink {
  50% { opacity: 0; }
}

/* ═══ Posts List ═══ */
.posts {
  padding: 20px 0 80px;
}

.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  margin-bottom: 24px;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.post-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  opacity: 0;
  transition: opacity 0.3s;
}

.post-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 255, 136, 0.04);
}

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

.post-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.post-date {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
}

.post-tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  background: rgba(0, 255, 136, 0.08);
  border: 1px solid rgba(0, 255, 136, 0.15);
  padding: 2px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.post-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-bright);
  line-height: 1.3;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.post-excerpt {
  font-size: 15px;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 16px;
}

.post-excerpt em { color: var(--accent); font-style: normal; }

.post-read {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--accent);
  transition: all 0.2s;
}

.post-card:hover .post-read { letter-spacing: 1px; }

/* ═══ Footer ═══ */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  position: relative;
  z-index: 1;
}

.footer-content {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-text {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
}

.footer-year { color: var(--accent); }

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
}

.footer-links a:hover { color: var(--accent); }

/* ═══ Post Page ═══ */
.post-header {
  padding: 80px 0 40px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 48px;
}

.post-header .post-meta { margin-bottom: 20px; }

.post-header .post-title {
  font-size: 36px;
  line-height: 1.25;
  max-width: 700px;
}

.post-body {
  padding-bottom: 80px;
}

.post-body h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-bright);
  margin: 48px 0 20px;
  padding-left: 16px;
  border-left: 3px solid var(--accent);
}

.post-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-bright);
  margin: 36px 0 16px;
}

.post-body p {
  font-size: 16px;
  margin-bottom: 20px;
  color: var(--text);
}

.post-body strong { color: var(--text-bright); }

.post-body em { color: var(--accent); font-style: italic; }

.post-body blockquote {
  border-left: 3px solid var(--accent2);
  padding: 16px 24px;
  margin: 32px 0;
  background: rgba(124, 106, 255, 0.05);
  border-radius: 0 8px 8px 0;
  font-style: italic;
  color: var(--text);
}

.post-body code {
  font-family: var(--mono);
  font-size: 14px;
  background: rgba(255, 255, 255, 0.06);
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--accent);
}

.post-body pre {
  background: var(--bg-terminal);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  margin: 28px 0;
  overflow-x: auto;
}

.post-body pre code {
  background: none;
  padding: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
}

.post-body ul, .post-body ol {
  margin: 16px 0 24px 24px;
}

.post-body li {
  margin-bottom: 8px;
  font-size: 16px;
}

.post-body li::marker { color: var(--accent); }

.post-body hr {
  border: none;
  height: 1px;
  background: var(--border);
  margin: 48px 0;
}

.highlight-box {
  background: linear-gradient(135deg, rgba(0,255,136,0.05), rgba(124,106,255,0.05));
  border: 1px solid var(--border-glow);
  border-radius: 12px;
  padding: 24px 28px;
  margin: 32px 0;
}

.highlight-box p { margin-bottom: 8px; }
.highlight-box p:last-child { margin-bottom: 0; }

/* ═══ Back Link ═══ */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 40px;
}

.back-link:hover { color: var(--accent); }

/* ═══ Responsive ═══ */
@media (max-width: 640px) {
  .nav { padding: 16px 20px; }
  .nav-links { gap: 20px; }
  .hero { padding: 48px 0 40px; }
  .terminal-body { padding: 16px; font-size: 13px; }
  .post-card { padding: 24px; }
  .post-title { font-size: 20px; }
  .post-header .post-title { font-size: 28px; }
  .footer-content { flex-direction: column; gap: 16px; text-align: center; }
}