/* ---------- Design tokens ---------- */
:root {
  --bg: #faf9f6;
  --bg-elevated: #f4f2ee;
  --bg-card: #ffffff;
  --border: #e6e3da;
  --text: #22252b;
  --text-dim: #5c5f66;
  --text-faint: #8b8f97;
  --accent: #d4a017;
  --accent-2: #9c6f0f;
  --accent-3: #16a34a;
  --accent-glow: rgba(212, 160, 23, 0.14);
  --accent-2-glow: rgba(156, 111, 15, 0.14);
  --danger: #e11d48;
  --font-sans: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --radius: 16px;
  --max-width: 780px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  background-image:
    radial-gradient(circle at 12% -5%, rgba(212, 160, 23, 0.10), transparent 42%),
    radial-gradient(circle at 88% 10%, rgba(212, 160, 23, 0.07), transparent 42%),
    radial-gradient(circle at 50% 100%, rgba(156, 111, 15, 0.05), transparent 50%);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre {
  font-family: var(--font-mono);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
}
code { padding: 0.15em 0.4em; font-size: 0.9em; color: #4338ca; }
pre { padding: 16px; overflow-x: auto; }
pre code { border: none; padding: 0; }

/* ---------- Layout shell ---------- */
.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.site-header { position: relative; }

/* Masthead: bold identity band, Krebs-style banner but on-brand */
.masthead {
  background:
    radial-gradient(circle at 15% 0%, rgba(212, 160, 23, 0.24), transparent 55%),
    radial-gradient(circle at 85% 100%, rgba(212, 160, 23, 0.14), transparent 55%),
    var(--bg-elevated);
  border-bottom: 3px solid var(--accent);
}

.masthead-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 30px;
  padding-bottom: 26px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text);
}

.brand:hover { text-decoration: none; }

.brand .mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 800;
  color: #fff;
  font-size: 1.1rem;
  box-shadow: 0 8px 20px -6px rgba(20, 22, 43, 0.18);
  flex-shrink: 0;
}

.brand-text { display: flex; flex-direction: column; gap: 2px; }

.brand-title {
  font-weight: 800;
  font-size: clamp(1.4rem, 3.4vw, 1.9rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text);
}

.brand-tagline {
  font-size: 0.82rem;
  color: var(--text-dim);
  font-weight: 500;
  max-width: 46ch;
}

.masthead-date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  white-space: nowrap;
  flex-shrink: 0;
}

.site-nav-bar {
  position: sticky;
  top: 0;
  background: rgba(250, 249, 246, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.site-nav { display: flex; align-items: center; justify-content: space-between; gap: 22px; font-size: 0.92rem; padding-top: 14px; padding-bottom: 14px; }
.site-nav-links { display: flex; gap: 22px; }
.site-nav a { color: var(--text-dim); font-weight: 600; }
.site-nav a:hover { color: var(--accent); text-decoration: none; }

/* ---------- Language switch ---------- */
.lang-switch {
  display: flex;
  gap: 2px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  flex-shrink: 0;
}
.lang-btn {
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 5px 12px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.lang-btn:hover { color: var(--text); }
html[data-lang="en"] .lang-btn[data-lang-btn="en"],
html[data-lang="th"] .lang-btn[data-lang-btn="th"] {
  background: var(--accent);
  color: #fff;
}

/* Bilingual post content: wrap each language's block in
   <div class="lang-en" markdown="1"> ... </div>
   <div class="lang-th" markdown="1" lang="th"> ... </div>
   Only one shows at a time, driven by the toggle above. */
html:not([data-lang]) .lang-th,
html[data-lang="en"] .lang-th { display: none; }
html[data-lang="th"] .lang-en { display: none; }

[lang="th"] { font-family: "Noto Sans Thai", var(--font-sans); }

/* ---------- Hero ---------- */
.hero {
  padding: 68px 0 44px;
  border-bottom: 1px solid var(--border);
}

.hero .kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), #f0c04d);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
  display: inline-block;
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin: 0 0 16px;
  background: linear-gradient(100deg, var(--text) 40%, var(--accent-2) 75%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.lede {
  color: var(--text-dim);
  font-size: 1.1rem;
  max-width: 62ch;
  margin: 0;
}

/* ---------- Post list ---------- */
.post-list {
  list-style: none;
  margin: 0;
  padding: 40px 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.post-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 26px;
  box-shadow: 0 1px 2px rgba(20, 22, 43, 0.04);
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.post-card.has-thumb {
  display: flex;
  gap: 20px;
  align-items: stretch;
  padding: 0;
  overflow: hidden;
}

.post-card .post-thumb {
  flex: 0 0 220px;
  overflow: hidden;
}

.post-card .post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.post-card-body { min-width: 0; }

.post-card.has-thumb .post-card-body { padding: 22px 26px 22px 0; }

@media (max-width: 640px) {
  .post-card.has-thumb { flex-direction: column; }
  .post-card .post-thumb { flex-basis: auto; height: 160px; }
}

.post-card:hover {
  text-decoration: none;
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 16px 32px -16px var(--accent-glow), 0 8px 20px -12px var(--accent-2-glow);
}

.post-card .meta {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  font-weight: 700;
}

.post-card h2 {
  margin: 0 0 8px;
  font-size: 1.3rem;
  letter-spacing: -0.01em;
  color: var(--text);
}

.post-card p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.97rem;
}

.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent-2);
  background: var(--accent-2-glow);
  border-radius: 999px;
  padding: 3px 10px;
  margin-right: 8px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---------- Article ---------- */
.article-header {
  padding: 56px 0 24px;
  border-bottom: 1px solid var(--border);
}

.article-header .meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-faint);
  margin-bottom: 18px;
  font-weight: 700;
}

.article-header h1 {
  font-size: clamp(1.9rem, 4.5vw, 2.6rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 14px;
  color: var(--text);
}

/* ---------- Images ---------- */
.article-hero {
  margin: 28px auto 0;
  padding: 0;
}

.article-hero img {
  width: 100%;
  border-radius: var(--radius);
  display: block;
  box-shadow: 0 12px 32px -18px rgba(20, 22, 43, 0.35);
}

.article-hero figcaption {
  margin-top: 10px;
  font-size: 0.83rem;
  color: var(--text-faint);
  font-style: italic;
}

.article-body {
  padding: 40px 0 20px;
  font-size: 1.09rem;
}

.article-body p { margin: 0 0 22px; }
.article-body h2 { margin: 40px 0 16px; font-size: 1.4rem; letter-spacing: -0.01em; color: var(--text); }

.article-body img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  display: block;
  margin: 8px 0;
  border: 1px solid var(--border);
}

.article-body figure {
  margin: 32px 0;
}

.article-body figure img {
  width: 100%;
  margin: 0;
}

.article-body figcaption {
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--text-faint);
  font-style: italic;
  line-height: 1.5;
}
.article-body blockquote {
  border-left: 4px solid var(--accent);
  margin: 28px 0;
  padding: 6px 0 6px 20px;
  color: var(--text-dim);
  font-style: italic;
  background: var(--accent-glow);
  border-radius: 0 10px 10px 0;
}

.disclosure {
  margin-top: 40px;
  padding: 18px 20px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.86rem;
  color: var(--text-faint);
}
.disclosure strong { color: var(--text-dim); }

.cta-box {
  margin: 32px 0;
  padding: 26px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(212,160,23,0.10), rgba(156,111,15,0.07));
  border: 1px solid var(--border);
  box-shadow: 0 8px 24px -16px var(--accent-glow);
}
.cta-box .tag { margin-bottom: 10px; }
.cta-box p { margin: 0 0 14px; color: var(--text); }
.cta-box a.button {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), #f0c04d);
  color: #fff;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 0.9rem;
  box-shadow: 0 8px 20px -8px var(--accent-glow);
}
.cta-box a.button:hover { text-decoration: none; opacity: 0.92; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 60px;
  padding: 32px 0 60px;
  color: var(--text-faint);
  font-size: 0.85rem;
}
.site-footer a { color: var(--text-dim); font-weight: 600; }

@media (max-width: 640px) {
  .site-nav { gap: 14px; font-size: 0.85rem; }
  .hero { padding: 48px 0 34px; }
  .masthead-inner { flex-wrap: wrap; padding-top: 22px; padding-bottom: 20px; }
  .masthead-date { order: 3; width: 100%; }
  .brand-tagline { display: none; }
}