/* GrowRoom blog — shared styles, matches landing/index.html design system */
:root{
  --bg:#0a120d; --bg2:#0d1811; --panel:#111d15; --panel2:#152418;
  --line:#203428; --line2:#2b4534; --text:#ecf5ee; --muted:#9db4a6; --dim:#6d8477;
  --green:#48c96c; --green2:#74e38f; --green-ink:#07130b;
  --gold:#e8c25a; --gold2:#f4d98a; --gold-ink:#211a06;
  --radius:20px; --max:820px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);
  font-family:'Inter','Noto Sans Thai',system-ui,-apple-system,sans-serif;
  line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:var(--green2);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* Nav */
header.nav{position:sticky;top:0;z-index:40;backdrop-filter:blur(14px);
  background:rgba(10,18,13,.8);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:900;font-size:1.1rem;letter-spacing:-.02em;color:var(--text)}
.brand:hover{text-decoration:none}
.nav-r{display:flex;align-items:center;gap:12px}
.lang{background:transparent;border:1px solid var(--line2);color:var(--muted);border-radius:999px;
  padding:7px 14px;font-size:.85rem;font-weight:700;cursor:pointer;transition:.15s}
.lang:hover{color:var(--text);border-color:var(--green)}

/* Language toggle: body.en shows English, default shows Thai */
.lang-en{display:none}
body.en .lang-en{display:block}
body.en .lang-th{display:none}
span.lang-en, a.lang-en{display:none}
body.en span.lang-en, body.en a.lang-en{display:inline}
body.en span.lang-th, body.en a.lang-th{display:none}

/* Article */
main{padding:56px 0 80px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green2);font-weight:800;
  letter-spacing:.14em;text-transform:uppercase;font-size:.7rem;border:1px solid var(--line2);
  border-radius:999px;padding:5px 13px;background:rgba(72,201,108,.07);margin-bottom:18px}
article h1{font-size:clamp(1.7rem,4vw,2.4rem);line-height:1.2;letter-spacing:-.02em;
  font-weight:900;margin:0 0 10px}
.byline{color:var(--dim);font-size:.88rem;margin-bottom:34px}
article h2{font-size:1.35rem;font-weight:800;letter-spacing:-.01em;margin:38px 0 12px;color:var(--green2)}
article p{margin:0 0 16px;color:var(--text)}
article p.lead{color:var(--muted);font-size:1.08rem}
article ul,article ol{margin:0 0 16px 24px}
article li{margin-bottom:8px}
article table{width:100%;border-collapse:collapse;margin:18px 0;font-size:.94rem}
article th,article td{border:1px solid var(--line2);padding:10px 12px;text-align:left;vertical-align:top}
article th{background:var(--panel2);font-weight:700}
article strong{color:var(--green2)}
blockquote{border-left:3px solid var(--green);background:var(--panel);
  padding:14px 18px;border-radius:0 12px 12px 0;margin:18px 0;color:var(--muted)}

/* CTA box */
.cta-box{background:linear-gradient(180deg,var(--panel2),var(--panel));border:1px solid var(--line2);
  border-radius:var(--radius);padding:26px 28px;margin:44px 0 0;text-align:center}
.cta-box h3{font-size:1.2rem;font-weight:800;margin-bottom:8px}
.cta-box p{color:var(--muted);margin-bottom:18px}
.btn{display:inline-flex;align-items:center;gap:9px;background:var(--green);color:var(--green-ink);
  font-weight:800;padding:13px 24px;border-radius:999px;border:0;cursor:pointer;font-size:.97rem;
  transition:transform .16s ease,background .16s ease;box-shadow:0 12px 32px rgba(72,201,108,.3)}
.btn:hover{transform:translateY(-2px);background:var(--green2);text-decoration:none}
.btn.ghost{background:transparent;color:var(--text);border:1.5px solid var(--line2);box-shadow:none;margin-left:10px}
.btn.ghost:hover{border-color:var(--green);background:rgba(72,201,108,.07)}

/* Related posts */
.related{margin-top:44px;padding-top:28px;border-top:1px solid var(--line)}
.related h3{font-size:1rem;font-weight:800;color:var(--muted);text-transform:uppercase;
  letter-spacing:.1em;font-size:.78rem;margin-bottom:14px}
.related ul{list-style:none;margin:0}
.related li{margin-bottom:10px}

/* Blog index cards */
.post-list{display:grid;gap:18px;margin-top:34px}
.post-card{background:var(--panel);border:1px solid var(--line2);border-radius:var(--radius);
  padding:22px 26px;transition:border-color .15s ease,transform .15s ease;display:block;color:var(--text)}
.post-card:hover{border-color:var(--green);transform:translateY(-2px);text-decoration:none}
.post-card .tag{font-size:.7rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--green2)}
.post-card h2{font-size:1.15rem;font-weight:800;margin:6px 0 6px;color:var(--text)}
.post-card p{color:var(--muted);font-size:.93rem;margin:0}

footer{border-top:1px solid var(--line);padding:28px 0;color:var(--dim);font-size:.85rem;text-align:center}
@media (max-width:620px){main{padding:36px 0 60px}.btn.ghost{margin-left:0;margin-top:10px}}