@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Outfit:wght@600;700;800&display=swap');

:root {
  --bg-deep: #020617;
  --bg-grid: rgba(56, 189, 248, 0.03);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent: #38bdf8;
  --accent-glow: rgba(56, 189, 248, 0.4);
  --glass-bg: rgba(15, 23, 42, 0.6);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-highlight: rgba(255, 255, 255, 0.03);

  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

/* Background Mesh Gradients */
.bg-vignette {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background:
    radial-gradient(circle at 0% 0%, rgba(56, 189, 248, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 100% 100%, rgba(129, 140, 248, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(15, 23, 42, 1) 0%, var(--bg-deep) 100%);
}

.bg-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background-image: linear-gradient(var(--bg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px);
  background-size: 40px 40px;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

/* Header Redesign */
header {
  margin-bottom: 6rem;
  text-align: center;
}

header h1 {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1rem;
}

header h1 a {
  text-decoration: none;
  color: inherit;
}

/* Glassmorphism Cards */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  border-radius: 24px;
  padding: 3rem;
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-highlight), transparent);
}

/* Post List */
.post-list {
  list-style: none;
}

.post-item {
  margin-bottom: 2.5rem;
}

.post-item-link {
  text-decoration: none;
  display: block;
}

.post-card {
  background: rgba(30, 41, 59, 0.3);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 2rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.post-card:hover {
  transform: translateY(-5px) scale(1.01);
  background: rgba(30, 41, 59, 0.5);
  border-color: var(--accent);
  box-shadow: 0 0 30px rgba(56, 189, 248, 0.1);
}

.post-card h2 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.post-card p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
}

.post-card .meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Single Post Content */
.post-content h1 {
  font-family: var(--font-heading);
  font-size: 3rem;
  margin-bottom: 2rem;
  line-height: 1.2;
}

.post-content .post-meta {
  margin-bottom: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 2rem;
}

.post-content .body {
  font-size: 1.15rem;
  color: #cbd5e1;
}

.post-content .body p {
  margin-bottom: 2rem;
}

.post-content .body h2 {
  font-family: var(--font-heading);
  margin: 3rem 0 1.5rem 0;
  color: var(--text-primary);
}

/* Tags */
.tags {
  display: flex;
  gap: 0.5rem;
}

.tag {
  background: rgba(56, 189, 248, 0.1);
  color: var(--accent);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-size: 0.8rem;
  border: 1px solid rgba(56, 189, 248, 0.2);
}

/* Footer / Related */
.related-section {
  margin-top: 5rem;
  border-top: 1px solid var(--glass-border);
  padding-top: 3rem;
}

.related-section h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 2rem;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.related-item {
  background: rgba(15, 23, 42, 0.4);
  padding: 1.5rem;
  border-radius: 16px;
  border: 1px solid var(--glass-border);
  text-decoration: none;
  transition: all 0.3s;
}

.related-item:hover {
  background: rgba(30, 41, 59, 0.6);
  border-color: var(--accent);
}

.related-item h4 {
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.related-item span {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
  header h1 {
    font-size: 2.5rem;
  }

  .container {
    padding: 2rem 1rem;
  }

  .glass-card {
    padding: 1.5rem;
  }
}