/* ─────────────────────────────────────────────
   DESIGN TOKENS — matches portfolio
───────────────────────────────────────────── */
:root {
  --bg-dark:       #06060f;
  --bg-deeper:     #03030a;
  --primary:       #6c63ff;
  --primary-light: #9b8fff;
  --accent:        #00d4aa;
  --accent2:       #aa6cfc;

  --text:          #f0f0ff;
  --text-muted:    #8888aa;

  --glass-bg:            rgba(255, 255, 255, 0.08);
  --glass-bg-hover:      rgba(255, 255, 255, 0.13);
  --glass-border:        rgba(255, 255, 255, 0.22);
  --glass-blur:          28px;
  --glass-saturate:      220%;
  --glass-shadow:        0 8px 40px rgba(0,0,0,0.5), 0 2px 8px rgba(0,0,0,0.3);
  --glass-inset:         inset 0 2px 0 rgba(255,255,255,0.22),
                         inset 0 -1px 0 rgba(255,255,255,0.05);

  --radius-sm:  8px;
  --radius-md:  14px;
  --radius-lg:  22px;

  --max-width: 820px;
  --font:      'Inter', system-ui, sans-serif;
  --mono:      'JetBrains Mono', monospace;
}

/* ─────────────────────────────────────────────
   RESET & BASE
───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg-dark);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* ambient blobs matching portfolio */
body::before {
  content: '';
  position: fixed;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(108,99,255,0.09) 0%, transparent 70%);
  top: -150px; left: -150px;
  pointer-events: none;
  z-index: 0;
}
body::after {
  content: '';
  position: fixed;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,170,0.06) 0%, transparent 70%);
  bottom: -100px; right: -100px;
  pointer-events: none;
  z-index: 0;
}

a { color: inherit; text-decoration: none; }

/* ─────────────────────────────────────────────
   LAYOUT
───────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2rem);
  position: relative;
  z-index: 1;
}

main.container { flex: 1; padding-top: 64px; padding-bottom: 80px; }

/* ─────────────────────────────────────────────
   HEADER / NAV
───────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 6, 15, 0.35);
  backdrop-filter: blur(36px) saturate(var(--glass-saturate)) brightness(1.05);
  -webkit-backdrop-filter: blur(36px) saturate(var(--glass-saturate)) brightness(1.05);
  border-bottom: 1px solid rgba(255,255,255,0.14);
  box-shadow: 0 4px 40px rgba(0,0,0,0.4), inset 0 2px 0 rgba(255,255,255,0.14);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.site-title {
  font-weight: 800;
  font-size: 1.1rem;
  font-family: var(--mono);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.site-nav { display: flex; gap: 0.25rem; }

.site-nav a {
  padding: 0.4rem 0.9rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: 50px;
  border: 1px solid transparent;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}
.site-nav a:hover {
  color: var(--text);
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.18);
}

/* ─────────────────────────────────────────────
   BLOG INDEX
───────────────────────────────────────────── */
.blog-index { }

.blog-header {
  margin-bottom: 3rem;
  text-align: center;
}

.blog-header-label {
  display: inline-block;
  padding: 0.3rem 1rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(0, 212, 170, 0.08);
  border: 1px solid rgba(0, 212, 170, 0.32);
  backdrop-filter: blur(16px) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(16px) saturate(var(--glass-saturate));
  box-shadow: 0 2px 16px rgba(0,212,170,0.15), inset 0 2px 0 rgba(255,255,255,0.2);
  margin-bottom: 1rem;
}

.blog-header h1 {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.18;
  margin-bottom: 0.75rem;
}

.blog-header h1 span {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 60%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.blog-header p {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 500px;
  margin: 0 auto;
}

.post-list { display: flex; flex-direction: column; gap: 1.25rem; }

.post-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate)) brightness(1.06);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate)) brightness(1.06);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow), var(--glass-inset);
  padding: 1.8rem 2rem;
  transition: background 0.3s, border-color 0.3s, box-shadow 0.3s, transform 0.25s;
}

.post-card:hover {
  background: var(--glass-bg-hover);
  border-color: rgba(108,99,255,0.5);
  transform: translateY(-3px);
  box-shadow: 0 20px 60px rgba(108,99,255,0.2), 0 4px 16px rgba(0,0,0,0.4),
              inset 0 2px 0 rgba(255,255,255,0.28);
}

.post-card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
  font-size: 0.78rem;
}

.post-card-meta time {
  color: var(--text-muted);
  font-family: var(--mono);
  margin-left: auto;
}

.post-card-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  line-height: 1.4;
}

.post-card-title a {
  color: var(--text);
  transition: color 0.2s;
}
.post-card-title a:hover { color: var(--primary-light); }

.post-card-excerpt {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 1.2rem;
  line-height: 1.7;
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 600;
  transition: gap 0.2s, color 0.2s;
}
.read-more:hover { gap: 0.7rem; color: var(--primary-light); }

.no-posts {
  text-align: center;
  color: var(--text-muted);
  padding: 3rem;
}

/* ─────────────────────────────────────────────
   TAGS
───────────────────────────────────────────── */
.tag {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 50px;
  font-size: 0.72rem;
  font-weight: 600;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--primary-light);
  backdrop-filter: blur(10px) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(10px) saturate(var(--glass-saturate));
  box-shadow: inset 0 1.5px 0 rgba(255,255,255,0.2);
  white-space: nowrap;
}

/* ─────────────────────────────────────────────
   POST PAGE
───────────────────────────────────────────── */
.post { max-width: 100%; }

.post-header {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.post-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.2rem;
  font-size: 0.82rem;
}

.post-meta time {
  color: var(--text-muted);
  font-family: var(--mono);
}

.post-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.post-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 640px;
}

/* ─── Post Content ───────────────────────────── */
.post-content { font-size: 1.02rem; line-height: 1.85; }

.post-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  color: var(--text);
  letter-spacing: -0.01em;
}

.post-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
  color: var(--text);
}

.post-content p { margin-bottom: 1.25rem; color: var(--text); }

.post-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity 0.2s;
}
.post-content a:hover { opacity: 0.75; }

.post-content ul, .post-content ol {
  margin: 0 0 1.25rem 1.5rem;
  color: var(--text);
}
.post-content li { margin-bottom: 0.5rem; }

.post-content strong { font-weight: 700; }
.post-content em { font-style: italic; }

.post-content blockquote {
  border-left: 3px solid var(--primary);
  padding: 1rem 1.4rem;
  margin: 1.75rem 0;
  background: rgba(108,99,255,0.07);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  backdrop-filter: blur(12px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.1);
}
.post-content blockquote p { color: var(--text-muted); margin-bottom: 0; }

.post-content code {
  font-family: var(--mono);
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 5px;
  padding: 2px 7px;
  font-size: 0.87em;
  color: var(--accent);
  backdrop-filter: blur(8px);
}

.post-content pre {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  border-radius: var(--radius-md);
  padding: 1.4rem 1.6rem;
  overflow-x: auto;
  margin: 1.75rem 0;
  box-shadow: var(--glass-shadow), var(--glass-inset);
}

.post-content pre code {
  background: transparent;
  border: none;
  padding: 0;
  font-size: 0.9rem;
  color: var(--text);
}

.post-content hr {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.09);
  margin: 2.5rem 0;
}

.post-content img {
  max-width: 100%;
  border-radius: var(--radius-md);
  margin: 1.75rem 0;
  box-shadow: var(--glass-shadow);
}

/* ─── Post Footer ────────────────────────────── */
.post-footer {
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.09);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.2rem;
  border-radius: 50px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  backdrop-filter: blur(12px) saturate(var(--glass-saturate));
  box-shadow: inset 0 1.5px 0 rgba(255,255,255,0.16);
  transition: color 0.2s, background 0.2s, border-color 0.2s, transform 0.2s;
}
.back-link:hover {
  color: var(--text);
  background: rgba(108,99,255,0.12);
  border-color: rgba(108,99,255,0.4);
  transform: translateX(-3px);
}

/* ─────────────────────────────────────────────
   FOOTER
───────────────────────────────────────────── */
.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 1.5rem 0;
  background: rgba(3,3,10,0.5);
  backdrop-filter: blur(32px) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(32px) saturate(var(--glass-saturate));
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.site-footer a {
  color: var(--text-muted);
  transition: color 0.2s;
}
.site-footer a:hover { color: var(--primary-light); }

/* ─────────────────────────────────────────────
   SCROLLBAR
───────────────────────────────────────────── */
::-webkit-scrollbar       { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deeper); }
::-webkit-scrollbar-thumb { background: rgba(108,99,255,0.35); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(108,99,255,0.6); }

::selection { background: rgba(108,99,255,0.35); color: #fff; }

/* ─────────────────────────────────────────────
   RESPONSIVE
───────────────────────────────────────────── */
@media (max-width: 600px) {
  main.container  { padding-top: 40px; padding-bottom: 60px; }
  .post-card      { padding: 1.3rem 1.2rem; }
  .blog-header h1 { font-size: 1.8rem; }
  .post-title     { font-size: 1.7rem; }
}