:root {
  --font-body: 'Bellota', serif;
}

/* DARK THEME (default) */
:root[data-theme="dark"] {
  --bg: #151515;
  --card: #1a1a1a;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #60a5fa;
}

/* LIGHT THEME */
:root[data-theme="light"] {
  --bg: #f7fafc;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --accent: #2563eb;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: var(--font-body); }
.container { max-width: 900px; margin: 0 auto; padding: 24px; }
.site-header { background: var(--card); border-bottom: 1px solid #223; }
.brand { color: var(--text); text-decoration: none; font-weight: 700; margin-right: 16px; }
.nav .nav-link { color: var(--muted); margin-right: 12px; text-decoration: none; }
.nav .nav-link:hover { color: var(--text); }
h1, h2, h3 { color: var(--text); }
.post-list { list-style: none; padding: 0; margin: 0; }
.post-item { padding: 16px 0; border-bottom: 1px solid #223; }
.post-meta { color: var(--muted); font-size: 14px; margin: 6px 0 12px; }
.post-content { line-height: 1.7; }
.site-footer { border-top: 1px solid #223; background: var(--card); }

.theme-toggle { margin-left: auto; background: transparent; border: 1px solid #334155; color: var(--text); padding: 6px 10px; border-radius: 6px; cursor: pointer; }
.theme-toggle:hover { border-color: var(--accent); }

/* Hero section */
.hero { text-align: center; padding: 80px 0; }
.hero-title { font-size: 4rem; font-weight: 700; margin: 0 0 2rem; color: var(--text); }
.hero-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-block; padding: 12px 24px; border-radius: 8px; text-decoration: none; font-weight: 500; transition: all 0.2s; }
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: #4f46e5; transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--text); border: 2px solid var(--muted); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

/* Blur animation segments */
.blur-segment { display: inline-block; will-change: transform, filter, opacity; }

/* Shiny text effect (text always visible) */
.shiny-text { position: relative; display: inline-block; color: var(--text); }
.shiny-text::after {
  content: attr(data-text);
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(
    120deg,
    rgba(255, 255, 255, 0) 40%,
    rgba(255, 255, 255, 0.85) 50%,
    rgba(255, 255, 255, 0) 60%
  );
  background-size: 200% 100%;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shine var(--shine-speed, 5s) linear infinite;
}
.shiny-text.disabled::after { animation: none; }

@keyframes shine { 0% { background-position: 100%; } 100% { background-position: -100%; } }

/* Homepage Card Styles */
.homepage-card {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.card-content {
  max-width: 800px;
  width: 100%;
  text-align: center;
}

.profile-section {
  margin-bottom: 3rem;
}

.avatar {
  margin-bottom: 1.5rem;
}

.avatar-placeholder {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  font-weight: 700;
  color: white;
  margin: 0 auto;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.main-title {
  font-size: 3.5rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  color: var(--text);
}

.subtitle {
  font-size: 1.25rem;
  color: var(--muted);
  margin: 0;
}

.navigation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.nav-card {
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 2rem 1.5rem;
  text-decoration: none;
  color: var(--text);
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.nav-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  border-color: var(--accent);
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.nav-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: var(--text);
}

.nav-card p {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.4;
}

/* Responsive design */
@media (max-width: 768px) {
  .homepage-card {
    padding: 1rem;
  }
  
  .main-title {
    font-size: 2.5rem;
  }
  
  .avatar-placeholder {
    width: 100px;
    height: 100px;
    font-size: 2.5rem;
  }
  
  .navigation-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .nav-card {
    padding: 1.5rem 1rem;
  }
}