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

:root {
  --color-bg:        #0f0f0f;
  --color-bg-card:   #1a1a1a;
  --color-border:    #2a2a2a;
  --color-text:      #e8e6e1;
  --color-muted:     #888;
  --color-accent:    #7dd3a8;
  --color-accent-2:  #a78bfa;
  --font-sans:       'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono:       'Fira Code', 'Cascadia Code', monospace;
  --max-width:       780px;
  --radius:          10px;
  --transition:      0.2s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent-2);
}

/* ── Layout ───────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* ── Header ───────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(15, 15, 15, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  padding-block: 0.9rem;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.logo:hover {
  color: var(--color-accent);
}

.site-nav {
  display: flex;
  gap: 1.5rem;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.site-nav a {
  color: var(--color-muted);
}

.site-nav a:hover {
  color: var(--color-text);
}

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  padding-block: 6rem 4.5rem;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.hero-title {
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 6vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
}

.hero-tagline {
  font-size: 1.15rem;
  color: var(--color-muted);
  max-width: 480px;
  margin-inline: auto;
}

/* ── Posts section ────────────────────────────────────────── */
.posts-section {
  padding-block: 4rem;
  border-bottom: 1px solid var(--color-border);
}

.section-heading {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-muted);
  margin-bottom: 2rem;
}

.posts-grid {
  display: grid;
  gap: 1.25rem;
}

.post-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: border-color var(--transition), transform var(--transition);
}

.post-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.post-meta {
  font-size: 0.78rem;
  color: var(--color-muted);
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.post-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text);
}

.post-card a:hover .post-title {
  color: var(--color-accent);
}

.post-summary {
  font-size: 0.92rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.post-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-top: 0.25rem;
}

.tag {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--color-accent-2);
  background-color: rgba(167, 139, 250, 0.1);
  border: 1px solid rgba(167, 139, 250, 0.25);
  border-radius: 4px;
  padding: 0.15em 0.5em;
}

.loading-msg {
  color: var(--color-muted);
  font-size: 0.9rem;
}

/* ── About section ────────────────────────────────────────── */
.about-section {
  padding-block: 4rem;
  border-bottom: 1px solid var(--color-border);
}

.about-inner {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.about-avatar {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: #000;
  font-weight: bold;
}

.about-text h2 {
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  margin-bottom: 0.75rem;
}

.about-text p {
  color: var(--color-text);
  font-size: 0.97rem;
  max-width: 540px;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

.social-link {
  font-size: 0.85rem;
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-muted);
  transition: color var(--transition);
}

.social-link:hover {
  color: var(--color-accent);
}

/* ── Footer ───────────────────────────────────────────────── */
.site-footer {
  padding-block: 2rem;
}

.site-footer p {
  font-size: 0.82rem;
  color: var(--color-muted);
  text-align: center;
  font-family: var(--font-mono);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 520px) {
  .hero {
    padding-block: 3.5rem 3rem;
  }

  .about-inner {
    flex-direction: column;
    gap: 1.25rem;
  }
}