/* ============ Xavorian Blog — Design System ============ */
:root {
  --purple: #6C3FC5;
  --purple-tint: #F3EEFF;
  --purple-accent: #8B5CF6;
  --white: #FFFFFF;
  --dark: #1A1A2E;
  --muted: #6B7280;
  --border: #E5E7EB;
  --shadow: 0 4px 16px rgba(108, 63, 197, 0.08);
  --shadow-hover: 0 8px 24px rgba(108, 63, 197, 0.16);
  --radius: 12px;
  --transition: 200ms ease;

  --font-heading: 'DM Serif Display', Georgia, serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

/* ============ Reset ============ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--dark);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--purple); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--purple-accent); }

/* ============ Layout ============ */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 760px; margin: 0 auto; padding: 0 24px; }

/* ============ Header ============ */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo-link { display: flex; align-items: center; gap: 12px; font-family: var(--font-heading); font-size: 22px; color: var(--dark); }
.logo-link img { width: 36px; height: 36px; }
.logo-link span { font-weight: 400; }
.site-nav { display: flex; gap: 28px; align-items: center; }
.site-nav a { color: var(--dark); font-weight: 500; font-size: 15px; }
.site-nav a:hover { color: var(--purple); }
.nav-cta {
  background: var(--purple);
  color: var(--white) !important;
  padding: 10px 20px;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
}
.nav-cta:hover { background: var(--purple-accent); color: var(--white) !important; transform: translateY(-1px); }

/* ============ Hero ============ */
.hero {
  background: linear-gradient(135deg, var(--purple-tint) 0%, var(--white) 100%);
  position: relative;
  overflow: hidden;
  padding: 48px 0 40px;
  text-align: center;
}

/* ============ Animated background blobs ============ */
.hero::before, .hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.45;
  pointer-events: none;
  z-index: 0;
}
.hero::before {
  width: 420px; height: 420px;
  background: radial-gradient(circle, var(--purple-accent), transparent 70%);
  top: -120px; left: -100px;
  animation: floatA 14s ease-in-out infinite;
}
.hero::after {
  width: 360px; height: 360px;
  background: radial-gradient(circle, var(--purple), transparent 70%);
  bottom: -140px; right: -80px;
  animation: floatB 18s ease-in-out infinite;
}
.hero > * { position: relative; z-index: 1; }
@keyframes floatA {
  0%,100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(80px, 60px) scale(1.15); }
}
@keyframes floatB {
  0%,100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(-70px, -50px) scale(1.1); }
}

/* Subtle floating dots layer for the whole page */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle at 20% 30%, rgba(108,63,197,0.06) 0, transparent 40%),
                    radial-gradient(circle at 80% 70%, rgba(139,92,246,0.05) 0, transparent 45%);
  pointer-events: none;
  z-index: -1;
  animation: bgShift 24s ease-in-out infinite;
}
@keyframes bgShift {
  0%,100% { transform: translate(0,0); }
  50% { transform: translate(-20px, 20px); }
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(32px, 4.6vw, 48px);
  line-height: 1.1;
  margin: 0 0 14px;
  color: var(--dark);
  font-weight: 400;
}
.hero-sub {
  font-size: 17px;
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto 14px;
}
.hero-desc {
  font-size: 15px;
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto 20px;
  line-height: 1.6;
}
.btn-primary {
  display: inline-block;
  background: var(--purple);
  color: var(--white) !important;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 16px;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow);
}
.btn-primary:hover { background: var(--purple-accent); transform: translateY(-2px); box-shadow: var(--shadow-hover); }

/* ============ Blog Grid ============ */
.section-title {
  font-family: var(--font-heading);
  font-size: 36px;
  margin: 0 0 36px;
  color: var(--dark);
  font-weight: 400;
}
.blog-section { padding: 72px 0; }
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
@media (max-width: 960px) { .blog-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .blog-grid { grid-template-columns: 1fr; } }

.blog-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
  opacity: 0;
  animation: fadeUp 600ms ease forwards;
}
.blog-card:nth-child(1) { animation-delay: 60ms; }
.blog-card:nth-child(2) { animation-delay: 120ms; }
.blog-card:nth-child(3) { animation-delay: 180ms; }
.blog-card:nth-child(4) { animation-delay: 240ms; }
.blog-card:nth-child(5) { animation-delay: 300ms; }
.blog-card:nth-child(6) { animation-delay: 360ms; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.blog-card a { color: inherit; display: flex; flex-direction: column; height: 100%; }
.card-cover {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: linear-gradient(135deg, var(--purple) 0%, var(--purple-accent) 100%);
}
.card-cover-fallback {
  width: 100%;
  aspect-ratio: 16/9;
  position: relative;
  background:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,0.18) 0, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,0.12) 0, transparent 45%),
    linear-gradient(135deg, #6C3FC5 0%, #8B5CF6 60%, #A78BFA 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  overflow: hidden;
}
.card-cover-fallback::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(circle at center, black 60%, transparent 100%);
}
.card-cover-fallback span {
  position: relative;
  z-index: 1;
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: clamp(14px, 1.6vw, 20px);
  line-height: 1.25;
  text-align: center;
  text-shadow: 0 2px 16px rgba(0,0,0,0.25);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.tag {
  display: inline-block;
  background: var(--purple-tint);
  color: var(--purple);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  align-self: flex-start;
}
.card-title {
  font-family: var(--font-heading);
  font-size: 22px;
  line-height: 1.25;
  margin: 0 0 12px;
  color: var(--dark);
  font-weight: 400;
}
.card-excerpt { color: var(--muted); font-size: 15px; margin: 0 0 16px; flex: 1; }
.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--muted);
  margin-top: auto;
}
.read-more { color: var(--purple); font-weight: 600; }

/* ============ Loading / Empty ============ */
.loading, .empty {
  text-align: center;
  padding: 64px 24px;
  color: var(--muted);
  font-size: 16px;
}

/* ============ Blog Post Page ============ */
.post-wrapper { padding: 48px 0 80px; }
.post-cover {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 32px;
}
.post-header { margin-bottom: 28px; }
.post-title {
  font-family: var(--font-heading);
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.15;
  margin: 12px 0 16px;
  color: var(--dark);
  font-weight: 400;
}
.post-meta { color: var(--muted); font-size: 14px; }
.post-meta span + span::before { content: " · "; margin: 0 6px; }
.divider { border: none; border-top: 1px solid var(--border); margin: 32px 0; }
.post-body { font-size: 18px; line-height: 1.75; color: #2a2a3e; }
.post-body { text-align: left; }
/* Ensure post wrapper is truly centered regardless of parent */
.post-wrapper { margin-left: auto; margin-right: auto; }
.container-narrow { width: 100%; }
.post-body h2 {
  font-family: var(--font-heading);
  font-size: 32px;
  margin: 48px 0 16px;
  color: var(--dark);
  font-weight: 400;
}
.post-body h3 {
  font-family: var(--font-heading);
  font-size: 24px;
  margin: 36px 0 12px;
  color: var(--dark);
  font-weight: 400;
}
.post-body h4 { font-size: 19px; margin: 28px 0 10px; }
.post-body p { margin: 0 0 20px; }
.post-body ul, .post-body ol { margin: 0 0 20px; padding-left: 24px; }
.post-body li { margin-bottom: 8px; }
.post-body strong { color: var(--dark); font-weight: 700; }
.post-body a { color: var(--purple); text-decoration: underline; text-underline-offset: 3px; }
.post-body a:hover { color: var(--purple-accent); }
.post-body img { border-radius: var(--radius); margin: 24px 0; }
.post-body blockquote {
  border-left: 4px solid var(--purple);
  background: var(--purple-tint);
  padding: 18px 24px;
  margin: 24px 0;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--dark);
}
.post-body code {
  font-family: var(--font-mono);
  background: var(--purple-tint);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--purple);
}

/* ============ CTA Box ============ */
.cta-box {
  background: linear-gradient(135deg, var(--purple) 0%, var(--purple-accent) 100%);
  color: var(--white);
  padding: 36px;
  border-radius: var(--radius);
  text-align: center;
  margin: 40px 0;
  box-shadow: var(--shadow);
}
.cta-box h3 {
  font-family: var(--font-heading);
  font-size: 28px;
  margin: 0 0 12px;
  color: var(--white);
  font-weight: 400;
}
.cta-box p { color: rgba(255,255,255,0.9); margin: 0 0 20px; font-size: 16px; }
.cta-box .btn-primary { background: var(--white); color: var(--purple) !important; }
.cta-box .btn-primary:hover { background: var(--purple-tint); color: var(--purple) !important; }

/* ============ Related Posts ============ */
.related-section { margin-top: 48px; }
.related-section h2 {
  font-family: var(--font-heading);
  font-size: 28px;
  margin: 0 0 24px;
  font-weight: 400;
  color: var(--dark);
}

/* ============ Footer ============ */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  padding: 48px 0;
  margin-top: 64px;
  text-align: center;
  font-size: 14px;
}
.site-footer a { color: rgba(255,255,255,0.85); margin: 0 12px; }
.site-footer a:hover { color: var(--white); }
.footer-tag {
  font-family: var(--font-heading);
  font-size: 18px;
  color: var(--white);
  margin-top: 16px;
  font-weight: 400;
}

/* ============ Mobile ============ */
@media (max-width: 640px) {
  .site-nav { gap: 16px; }
  .site-nav a:not(.nav-cta) { display: none; }
  .hero { padding: 56px 0 40px; }
  .hero-sub { font-size: 17px; }
  .blog-section { padding: 48px 0; }
  .post-body { font-size: 16px; }
  /* Shrink CTAs ~3× on mobile per request */
  .nav-cta {
    padding: 4px 10px;
    font-size: 11px;
    border-radius: 6px;
  }
  .logo-link { font-size: 16px; gap: 8px; }
  .logo-link img { width: 26px; height: 26px; }
  .btn-primary {
    padding: 7px 14px;
    font-size: 12px;
    border-radius: 7px;
  }
  .hero h1 { font-size: clamp(28px, 8vw, 36px); }
}