/* Shared CSS for Budgy blog posts. Subset of the landing styles tuned
   for long-form reading (no hero, more vertical rhythm). */

:root {
  --teal: #14B8A6;
  --teal-d: #0D9488;
  --gold: #F5A623;
  --purple: #A855F7;
  --purple-d: #7C3AED;
  --pink: #EC4899;
  --ink: #0F172A;
  --ink-soft: #334155;
  --ink-mute: #64748B;
  --bg: #F8FAFC;
  --line: #E2E8F0;
  --card: #FFFFFF;
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Noto Sans Thai', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ── Top nav (matches index, simpler) ─────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav .logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--ink);
}
.nav .logo img { height: 32px; width: auto; }
.nav .logo span { font-weight: 800; font-size: 20px; }
.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a {
  color: var(--ink-soft);
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
}
.nav-links a:hover { color: var(--purple-d); }
.nav-cta {
  background: linear-gradient(135deg, var(--purple) 0%, var(--purple-d) 100%);
  color: white !important;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 700;
}

/* ── Article container ────────────────────────────────────────── */
.article {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}
.breadcrumbs {
  font-size: 13px;
  color: var(--ink-mute);
  margin-bottom: 16px;
}
.breadcrumbs a {
  color: var(--ink-mute);
  text-decoration: none;
}
.breadcrumbs a:hover { color: var(--purple-d); text-decoration: underline; }
.breadcrumbs .sep { margin: 0 8px; }

.article h1 {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.25;
  margin: 16px 0 8px;
  letter-spacing: -0.02em;
}

.article .meta {
  display: flex;
  gap: 16px;
  font-size: 14px;
  color: var(--ink-mute);
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.article .meta .tag {
  background: rgba(168, 85, 247, 0.1);
  color: var(--purple-d);
  padding: 2px 10px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 12px;
}

.article h2 {
  font-size: clamp(22px, 3vw, 28px);
  margin: 48px 0 12px;
  letter-spacing: -0.015em;
}
.article h3 {
  font-size: 20px;
  margin: 32px 0 8px;
}
.article p {
  color: var(--ink-soft);
  margin: 0 0 18px;
}
.article ul, .article ol {
  color: var(--ink-soft);
  padding-left: 24px;
  margin: 0 0 24px;
}
.article li { margin-bottom: 8px; }
.article strong { color: var(--ink); font-weight: 700; }
.article a {
  color: var(--purple-d);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.article a:hover { color: var(--pink); }

.article blockquote {
  border-left: 4px solid var(--purple);
  background: rgba(168, 85, 247, 0.06);
  padding: 16px 20px;
  margin: 24px 0;
  border-radius: 0 12px 12px 0;
  color: var(--ink);
}

.article table {
  border-collapse: collapse;
  width: 100%;
  margin: 24px 0;
  font-size: 15px;
}
.article th, .article td {
  border: 1px solid var(--line);
  padding: 10px 14px;
  text-align: left;
}
.article th {
  background: var(--bg);
  font-weight: 700;
}

/* ── Inline CTA card ─────────────────────────────────────────── */
.cta-card {
  background: linear-gradient(135deg, var(--purple) 0%, var(--purple-d) 100%);
  color: white;
  padding: 28px 28px;
  border-radius: 20px;
  margin: 40px 0;
  box-shadow: 0 12px 32px rgba(124, 58, 237, 0.25);
}
.cta-card h3 {
  color: white;
  margin: 0 0 8px;
  font-size: 22px;
}
.cta-card p {
  color: rgba(255, 255, 255, 0.92);
  margin: 0 0 20px;
  font-size: 15px;
}
.cta-card .stores {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.cta-card .store-btn {
  background: white;
  color: var(--ink);
  padding: 12px 18px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.cta-card .store-btn:hover { transform: translateY(-1px); }

/* ── Related posts ───────────────────────────────────────────── */
.related {
  border-top: 1px solid var(--line);
  margin-top: 56px;
  padding-top: 32px;
}
.related h2 {
  font-size: 22px;
  margin-bottom: 16px;
}
.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.related-list a {
  display: block;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  text-decoration: none;
  color: var(--ink);
  background: var(--card);
  transition: border-color .15s, transform .15s;
}
.related-list a:hover {
  border-color: var(--purple);
  transform: translateY(-2px);
}
.related-list .tag {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--purple-d);
  font-weight: 700;
  display: block;
  margin-bottom: 6px;
}
.related-list h3 {
  font-size: 16px;
  margin: 0;
  line-height: 1.4;
}

/* ── Footer ──────────────────────────────────────────────────── */
.footer {
  max-width: 1100px;
  margin: 60px auto 0;
  padding: 32px 24px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--ink-mute);
  font-size: 14px;
}
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-links a {
  color: var(--ink-mute);
  text-decoration: none;
}
.footer-links a:hover { color: var(--purple-d); }

/* ── Blog index (listing) ───────────────────────────────────── */
.blog-hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 64px 24px 32px;
  text-align: center;
}
.blog-hero h1 {
  font-size: clamp(32px, 5vw, 48px);
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}
.blog-hero p {
  font-size: 18px;
  color: var(--ink-mute);
  margin: 0;
}
.blog-list {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 24px 64px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.blog-card {
  display: block;
  text-decoration: none;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  color: inherit;
  transition: border-color .15s, transform .15s, box-shadow .15s;
}
.blog-card:hover {
  border-color: var(--purple);
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
}
.blog-card .tag {
  display: inline-block;
  background: rgba(168, 85, 247, 0.12);
  color: var(--purple-d);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}
.blog-card h2 {
  font-size: 20px;
  margin: 0 0 8px;
  line-height: 1.4;
  color: var(--ink);
}
.blog-card p {
  margin: 0;
  color: var(--ink-mute);
  font-size: 15px;
  line-height: 1.6;
}
.blog-card .meta {
  margin-top: 14px;
  font-size: 13px;
  color: var(--ink-mute);
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  .article { padding: 32px 20px 60px; }
  .nav-links a:not(.nav-cta) { display: none; }
}