/* ─── Tokens (mirrors src/App.css) ──────────────────── */
:root {
  --purple:       #8B2BE2;
  --purple-mid:   #9B3CF2;
  --purple-light: #A855F7;
  --purple-glow:  rgba(139, 43, 226, 0.25);
  --purple-glow2: rgba(139, 43, 226, 0.12);
  --amber:        #F59E0B;
  --bg:           #0D0D0D;
  --card:         rgba(255, 255, 255, 0.035);
  --card-hover:   rgba(255, 255, 255, 0.055);
  --border:       rgba(255, 255, 255, 0.07);
  --border-mid:   rgba(255, 255, 255, 0.12);
  --text:         #F0EEFF;
  --text-muted:   rgba(240, 238, 255, 0.5);
  --text-dim:     rgba(240, 238, 255, 0.22);
}

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

html, body { height: 100%; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: linear-gradient(145deg, #1A1040 0%, #0D0D1A 55%, #0D0D0D 100%);
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── Header / Footer ────────────────────────────────── */
.blog-header {
  padding: 22px 24px;
  max-width: 780px;
  margin: 0 auto;
}

.blog-logo {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.38em;
  color: var(--purple-light);
  text-transform: uppercase;
  text-decoration: none;
}

.blog-footer {
  max-width: 780px;
  margin: 0 auto;
  padding: 40px 24px 64px;
  border-top: 1px solid var(--border);
  margin-top: 48px;
}

.blog-footer a {
  color: var(--purple-light);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
}

.blog-footer a:hover { color: var(--purple-mid); }

/* ─── Article ─────────────────────────────────────────── */
.article {
  max-width: 700px;
  margin: 0 auto;
  padding: 24px 24px 0;
}

.article-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 24px;
}

.blog-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 24px;
  color: var(--purple-light);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.article-topbar .blog-back { margin-bottom: 0; }

.blog-back:hover { color: var(--purple-mid); }

.lang-switch {
  display: inline-flex;
  align-items: center;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--border-mid);
  padding: 4px 12px;
  border-radius: 20px;
  transition: color 0.18s, border-color 0.18s;
}

.lang-switch:hover { color: var(--purple-light); border-color: var(--purple-glow); }

.blog-back-bottom { margin-top: 40px; margin-bottom: 0; }

.article h1 {
  font-size: clamp(28px, 4.5vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 28px;
  color: #FFFFFF;
}

.article h2 {
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  line-height: 1.3;
  color: #FFFFFF;
  margin: 40px 0 16px;
}

.article h3 {
  font-size: 18px;
  font-weight: 700;
  color: #FFFFFF;
  margin: 28px 0 12px;
}

.article p {
  font-size: 17px;
  line-height: 1.75;
  color: #FFFFFF;
  margin-bottom: 20px;
}

.article strong { color: #FFFFFF; font-weight: 700; }

.article em { color: #FFFFFF; font-style: normal; }

.article a {
  color: var(--purple-light);
  text-decoration: underline;
  text-decoration-color: var(--purple-glow2);
  text-underline-offset: 3px;
}

.article a:hover { color: var(--purple-mid); }

.article ul, .article ol {
  margin: 0 0 20px 22px;
  color: #FFFFFF;
}

.article li {
  font-size: 17px;
  line-height: 1.75;
  margin-bottom: 10px;
}

.article blockquote {
  margin: 28px 0;
  padding: 20px 24px;
  border-left: 3px solid var(--purple);
  background: var(--card);
  border-radius: 0 12px 12px 0;
  font-size: 17px;
  line-height: 1.6;
  color: #FFFFFF;
  font-style: normal;
}

.article hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 40px 0;
}

.article code {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 15px;
}

/* ─── Blog index ──────────────────────────────────────── */
.blog-index-list {
  list-style: none;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.blog-index-list li {
  border-bottom: 1px solid var(--border);
}

.blog-index-list a {
  display: block;
  padding: 18px 4px;
  font-size: 18px;
  font-weight: 600;
  color: #FFFFFF;
  text-decoration: none;
  transition: color 0.18s;
}

.blog-index-list a:hover { color: var(--purple-light); }

@media (max-width: 600px) {
  .blog-header, .article, .blog-footer { padding-left: 20px; padding-right: 20px; }
}