/* ===== Post Page — Cosmic Theme ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #060608;
  --surface: #0d0d12;
  --surface-hover: #12121a;
  --border: rgba(255,255,255,0.06);
  --border-accent: rgba(124,106,255,0.2);
  --text: #e8e8ec;
  --text-dim: #8888a0;
  --text-body: #c8c8d8;
  --accent: #7c6aff;
  --accent-light: #9d8fff;
  --accent-glow: rgba(124, 106, 255, 0.25);
  --accent2: #ff6b8a;
  --font: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --transition: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

html { scroll-behavior: smooth; scrollbar-width: thin; scrollbar-color: var(--accent) var(--bg); }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; transition: color 0.3s; }
a:hover { color: var(--accent-light); }

/* ===== Particles Canvas ===== */
#particles {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  z-index: 0; pointer-events: none;
}

/* ===== Cursor Glow ===== */
.cursor-glow {
  position: fixed; width: 600px; height: 600px;
  border-radius: 50%; pointer-events: none; z-index: 1;
  background: radial-gradient(circle, rgba(124,106,255,0.06) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
}

/* ===== Reading Progress Bar ===== */
.reading-progress {
  position: fixed; top: 0; left: 0; height: 3px; z-index: 200;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  width: 0%; transition: width 0.1s linear;
  box-shadow: 0 0 10px var(--accent-glow);
}

/* ===== Floating Orbs ===== */
.orb {
  position: fixed; border-radius: 50%; filter: blur(80px);
  pointer-events: none; z-index: 0;
}
.orb-1 {
  width: 400px; height: 400px; top: 10%; right: -100px;
  background: rgba(124,106,255,0.08);
  animation: orbFloat1 20s ease-in-out infinite;
}
.orb-2 {
  width: 300px; height: 300px; bottom: 20%; left: -80px;
  background: rgba(255,107,138,0.06);
  animation: orbFloat2 25s ease-in-out infinite;
}
@keyframes orbFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-40px, 60px) scale(1.1); }
  66% { transform: translate(30px, -40px) scale(0.95); }
}
@keyframes orbFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(50px, -30px) scale(1.15); }
}

/* ===== Navigation ===== */
.post-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(6,6,8,0.7); backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  display: flex; align-items: center; justify-content: space-between;
  transition: background 0.3s, box-shadow 0.3s;
}
.post-nav.scrolled {
  background: rgba(6,6,8,0.92);
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}
.post-nav .logo {
  font-family: var(--font); font-weight: 700; font-size: 1.4rem;
  color: var(--text); transition: transform 0.3s;
}
.post-nav .logo:hover { transform: scale(1.05); color: var(--text); }
.post-nav .logo .dot { color: var(--accent); }
.post-nav .back {
  color: var(--text-dim); font-size: 0.9rem; transition: all 0.3s;
  display: flex; align-items: center; gap: 0.3rem;
}
.post-nav .back:hover { color: var(--accent); transform: translateX(-3px); }

/* ===== Hero ===== */
.post-hero {
  position: relative; z-index: 2;
  padding: 10rem 2rem 3rem;
  max-width: 800px; margin: 0 auto;
}
.post-tag {
  display: inline-block; padding: 0.35rem 1rem;
  background: var(--accent-glow);
  color: var(--accent); border-radius: 20px;
  font-size: 0.8rem; font-weight: 500;
  margin-bottom: 1.5rem; letter-spacing: 0.5px;
  border: 1px solid rgba(124,106,255,0.15);
  opacity: 0; animation: fadeUp 0.6s ease forwards 0.2s;
}
.post-hero h1 {
  font-family: var(--font);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700; line-height: 1.12;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--text) 0%, var(--text-dim) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0; animation: fadeUp 0.6s ease forwards 0.4s;
}
.post-meta {
  display: flex; align-items: center; gap: 1rem;
  color: var(--text-dim); font-size: 0.9rem;
  opacity: 0; animation: fadeUp 0.6s ease forwards 0.6s;
}
.post-meta .author-avatar {
  width: 38px; height: 38px; border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent);
  box-shadow: 0 0 20px rgba(124,106,255,0.3);
}

/* ===== Cover Image ===== */
.post-cover {
  position: relative; z-index: 2;
  max-width: 900px; margin: 2rem auto;
  padding: 0 2rem;
  opacity: 0; animation: fadeUp 0.8s ease forwards 0.8s;
}
.post-cover img {
  width: 100%; border-radius: 16px;
  aspect-ratio: 16/9; object-fit: cover;
  border: 1px solid var(--border);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  transition: transform 0.5s var(--transition), box-shadow 0.5s;
}
.post-cover:hover img {
  transform: scale(1.01);
  box-shadow: 0 25px 70px rgba(0,0,0,0.5);
}

/* ===== Content ===== */
.post-content {
  position: relative; z-index: 2;
  max-width: 700px; margin: 3rem auto;
  padding: 0 2rem; font-size: 1.1rem;
}
.post-content > * {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.post-content > .visible {
  opacity: 1; transform: translateY(0);
}
.post-content p { margin-bottom: 1.5rem; color: var(--text-body); }
.post-content h2 {
  font-family: var(--font);
  font-size: 1.7rem; font-weight: 600;
  margin: 3.5rem 0 1rem; color: var(--text);
  position: relative; padding-left: 1rem;
  border-left: 3px solid var(--accent);
}
.post-content h3 {
  font-family: var(--font);
  font-size: 1.3rem; font-weight: 600;
  margin: 2.5rem 0 0.75rem; color: var(--text);
}
.post-content ul, .post-content ol {
  margin: 0 0 1.5rem 1.5rem; color: var(--text-body);
}
.post-content li { margin-bottom: 0.6rem; }
.post-content li strong { color: var(--text); }
.post-content blockquote {
  border-left: 3px solid var(--accent);
  padding: 1.2rem 1.5rem; margin: 2.5rem 0;
  background: linear-gradient(135deg, var(--surface) 0%, rgba(124,106,255,0.05) 100%);
  border-radius: 0 12px 12px 0;
  color: var(--text-body); font-style: italic;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}
.post-content code {
  background: var(--surface); padding: 0.2rem 0.6rem;
  border-radius: 6px; font-size: 0.9em; color: var(--accent);
  border: 1px solid var(--border);
}
.post-content pre {
  background: var(--surface); padding: 1.5rem;
  border-radius: 12px; overflow-x: auto;
  margin: 1.5rem 0; border: 1px solid var(--border);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}
.post-content pre code { background: none; padding: 0; color: var(--text-body); border: none; }
.post-content hr {
  border: none; border-top: 1px solid var(--border);
  margin: 3rem 0;
}
.post-content em { color: var(--accent-light); font-style: italic; }
.post-content a { border-bottom: 1px solid rgba(124,106,255,0.3); transition: border-color 0.3s; }
.post-content a:hover { border-color: var(--accent); }

/* ===== Footer ===== */
.post-footer {
  position: relative; z-index: 2;
  max-width: 700px; margin: 5rem auto;
  padding: 2.5rem 2rem; text-align: center;
  border-top: 1px solid var(--border);
}
.post-footer a {
  display: inline-flex; align-items: center; gap: 0.5rem;
  color: var(--accent); font-weight: 500;
  padding: 0.8rem 1.5rem; border-radius: 10px;
  border: 1px solid var(--border);
  transition: all 0.3s;
}
.post-footer a:hover {
  background: var(--accent-glow);
  border-color: var(--border-accent);
  transform: translateX(-4px);
}

/* ===== Animations ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .post-hero { padding: 7rem 1.2rem 2rem; }
  .post-hero h1 { font-size: 1.8rem; }
  .post-content { padding: 0 1.2rem; font-size: 1rem; }
  .post-cover { padding: 0 1.2rem; }
  .cursor-glow { display: none; }
}