@import url('https://fonts.googleapis.com/css2?family=Bai+Jamjuree:wght@400;500;600;700&family=IBM+Plex+Sans+Thai:wght@300;400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --ink:#0C2226; --ink2:#123A3E; --paper:#F1F3EF; --card:#fff;
  --gold:#D98E1F; --teal:#2C6E6A; --muted:#64756F; --line:#DCE2DA;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{
  background:var(--paper); color:var(--ink);
  font-family:'IBM Plex Sans Thai',system-ui,-apple-system,sans-serif;
  font-size:16px; line-height:1.9; -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px;}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);}
.wrap{max-width:1180px;margin:0 auto;padding:0 22px;}

/* ---------- แถบนำทาง ---------- */
.nav{position:sticky;top:0;z-index:40;background:var(--ink);border-bottom:1px solid #1d474b;}
.nav-in{display:flex;align-items:center;gap:18px;height:64px;}
.mark b{display:block;font-family:'Bai Jamjuree',sans-serif;font-weight:600;font-size:16px;color:#fff;line-height:1.2;}
.mark span{font-family:'IBM Plex Mono',monospace;font-size:10px;color:var(--gold);letter-spacing:1.4px;}
.links{display:flex;gap:4px;margin-left:auto;}
.links a{color:#C9D6D3;font-size:14.5px;padding:7px 12px;border-radius:6px;}
.links a:hover,.links a.on{background:#1b4247;color:#fff;}
.searchbox{display:flex;align-items:center;gap:8px;background:#17393d;border:1px solid #24565b;border-radius:8px;padding:7px 11px;width:220px;}
.searchbox input{background:none;border:0;color:#fff;width:100%;outline:none;font-size:14px;}
.searchbox input::placeholder{color:#7f9997;}
.burger{display:none;background:#17393d;border:1px solid #24565b;color:#fff;border-radius:8px;padding:9px 11px;cursor:pointer;margin-left:auto;}
.mobmenu{display:none;padding:10px 0 18px;border-top:1px solid #1d474b;}
.mobmenu.open{display:block;}
.mobmenu a{display:block;color:#C9D6D3;padding:9px 4px;font-size:15px;}
.mobmenu .searchbox{width:100%;margin-top:8px;}

/* ---------- ส่วนหัวเรื่อง ---------- */
.hero{background:var(--ink);color:#EAF1EF;padding:46px 0 60px;position:relative;overflow:hidden;}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:46px 46px;}
.hero-in{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:end;}
.eyebrow{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:2.4px;color:var(--gold);margin-bottom:14px;}
.pre{font-family:'Bai Jamjuree',sans-serif;font-size:15px;color:#9FBAB6;}
.hname{font-family:'Bai Jamjuree',sans-serif;font-weight:700;font-size:52px;line-height:1.12;color:#fff;margin-bottom:16px;}
.bio{font-size:15.5px;color:#B7C9C6;max-width:44ch;margin-bottom:26px;}
.fields{border-top:1px solid #24565b;}
.field{display:grid;grid-template-columns:130px 1fr;gap:14px;padding:9px 0;border-bottom:1px solid #1b4247;font-size:13.5px;}
.field dt{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:1.1px;color:#7f9997;padding-top:3px;}
.field dd{color:#DDE8E6;}

.feat{display:block;background:#16383c;border:1px solid #24565b;border-radius:12px;overflow:hidden;transition:transform .25s,border-color .25s;}
.feat:hover{transform:translateY(-4px);border-color:var(--gold);}
.feat-band{height:4px;background:var(--gold);}
.feat-in{padding:22px 24px 24px;}
.feat-flag{font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:1.8px;color:var(--gold);margin-bottom:12px;}
.feat h2{font-family:'Bai Jamjuree',sans-serif;font-weight:600;font-size:24px;line-height:1.42;color:#fff;margin-bottom:12px;}
.feat p{font-size:14.5px;color:#A9C0BD;margin-bottom:18px;}
.feat-more{color:var(--gold);font-size:14px;font-weight:500;}

/* ---------- แถบกรอง ---------- */
.filter{position:sticky;top:64px;z-index:30;background:rgba(241,243,239,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);padding:14px 0 12px;}
.chips{display:flex;gap:8px;flex-wrap:wrap;align-items:center;}
.chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 15px;font-size:14px;transition:.18s;}
.chip:hover{border-color:var(--ink2);}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink);}
.sortbox{margin-left:auto;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.sortbox select{padding:6px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;font-size:13.5px;}
.qline{font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:var(--muted);margin-top:11px;overflow-x:auto;white-space:nowrap;}
.qline b{color:var(--gold);font-weight:500;}
.qline i{color:var(--teal);font-style:normal;}

/* ---------- เนื้อหา ---------- */
.main{display:grid;grid-template-columns:1fr 300px;gap:40px;padding:40px 0 64px;align-items:start;}
.h2{font-family:'Bai Jamjuree',sans-serif;font-weight:600;font-size:19px;margin-bottom:18px;}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}

.card{position:relative;display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:transform .22s,box-shadow .22s,border-color .22s;}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 30px -18px rgba(12,34,38,.5);border-color:#c3cfc4;}
.cover{height:132px;border-bottom:1px solid var(--line);background-size:cover;background-position:center;position:relative;}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;flex:1;}
.card-top{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.code{font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.8px;color:var(--muted);}
.cattag{font-size:11.5px;border:1px solid;border-radius:999px;padding:2px 9px;}
.card-title{font-family:'Bai Jamjuree',sans-serif;font-weight:600;font-size:17.5px;line-height:1.5;margin-bottom:9px;}
.card:hover .card-title{color:var(--teal);}
.card-ex{font-size:14px;color:#56655F;line-height:1.75;margin-bottom:16px;}
.meta{display:flex;gap:14px;flex-wrap:wrap;margin-top:auto;font-family:'IBM Plex Mono',monospace;font-size:10.5px;color:var(--muted);}

.pager{display:flex;gap:8px;justify-content:center;margin-top:32px;flex-wrap:wrap;}
.pager a,.pager span{border:1px solid var(--line);background:#fff;border-radius:8px;padding:8px 14px;font-size:14px;}
.pager .cur{background:var(--ink);color:#fff;border-color:var(--ink);}
.empty{border:1px dashed var(--line);border-radius:12px;padding:44px 24px;text-align:center;color:var(--muted);background:#fff;}
.empty b{display:block;font-family:'Bai Jamjuree',sans-serif;color:var(--ink);font-size:17px;margin-bottom:6px;}

/* ---------- แถบข้าง ---------- */
.rail{position:sticky;top:150px;display:flex;flex-direction:column;gap:22px;}
.box{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;}
.box h3{font-family:'Bai Jamjuree',sans-serif;font-weight:600;font-size:15px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.box h3::before{content:"";width:14px;height:2px;background:var(--gold);}
.pop{display:flex;gap:12px;padding:11px 0;border-top:1px solid #EDF0EA;}
.pop:first-of-type{border-top:0;padding-top:0;}
.pop-n{font-family:'IBM Plex Mono',monospace;font-size:15px;color:var(--gold);width:20px;flex-shrink:0;}
.pop-t{font-size:13.5px;line-height:1.65;}
.pop:hover .pop-t{color:var(--teal);}
.pop-v{font-family:'IBM Plex Mono',monospace;font-size:10.5px;color:var(--muted);}
.tags{display:flex;flex-wrap:wrap;gap:7px;}
.tag{font-size:12.5px;color:var(--teal);background:#EBF1EF;border-radius:6px;padding:4px 10px;}
.sub p{font-size:13.5px;color:var(--muted);margin-bottom:13px;}
.sub input{width:100%;border:1px solid var(--line);border-radius:8px;padding:10px 12px;margin-bottom:9px;}
.sub button{width:100%;background:var(--ink);color:#fff;border:0;border-radius:8px;padding:11px;cursor:pointer;}
.sub button:hover{background:var(--teal);}
.note{font-size:13px;padding:9px 12px;border-radius:8px;margin-bottom:10px;}
.note.ok{background:#E8F2EC;color:#22543D;}
.note.err{background:#FBECEC;color:#7A2E2E;}

/* ---------- หน้าอ่านบทความ ---------- */
.read{max-width:760px;margin:0 auto;padding:34px 22px 70px;}
.back{display:inline-block;color:var(--muted);font-size:14px;margin-bottom:26px;}
.back:hover{color:var(--ink);}
.read-title{font-family:'Bai Jamjuree',sans-serif;font-weight:700;font-size:37px;line-height:1.35;margin:12px 0 16px;}
.read-lead{font-size:17px;color:#4E5D57;margin-bottom:26px;}
.read-meta{display:flex;align-items:center;gap:18px;flex-wrap:wrap;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:28px;}
.author{display:flex;align-items:center;gap:11px;}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--ink);color:var(--gold);display:flex;align-items:center;justify-content:center;font-family:'Bai Jamjuree',sans-serif;font-weight:600;font-size:14px;}
.author-name{font-size:14.5px;font-weight:500;}
.author-role{font-size:12.5px;color:var(--muted);}
.meta-r{margin-left:auto;}
.read-cover{height:260px;border-radius:12px;background-size:cover;background-position:center;margin-bottom:12px;}
.prose{margin-top:30px;}
.prose p{font-size:17px;line-height:2.05;color:#25332E;margin-bottom:24px;}
.prose h2{font-family:'Bai Jamjuree',sans-serif;font-weight:600;font-size:22px;line-height:1.5;margin:38px 0 14px;padding-left:14px;border-left:3px solid var(--gold);}
.prose h3{font-family:'Bai Jamjuree',sans-serif;font-weight:600;font-size:18.5px;margin:28px 0 10px;}
.prose ul,.prose ol{margin:0 0 24px 26px;}
.prose li{font-size:17px;line-height:1.95;margin-bottom:8px;}
.prose img{border-radius:10px;margin:24px 0;}
.prose a{color:var(--teal);text-decoration:underline;}
.prose blockquote{margin:30px 0;padding:22px 26px;background:#fff;border:1px solid var(--line);border-left:3px solid var(--teal);border-radius:0 10px 10px 0;font-family:'Bai Jamjuree',sans-serif;font-size:19px;line-height:1.75;color:var(--ink2);}
.prose pre{background:var(--ink);color:#DDE8E6;padding:18px;border-radius:10px;overflow-x:auto;margin-bottom:24px;font-family:'IBM Plex Mono',monospace;font-size:14px;line-height:1.7;}
.prose table{width:100%;border-collapse:collapse;margin-bottom:24px;font-size:15px;}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.prose th{background:#E9EDE7;font-weight:600;}
.tagrow{display:flex;flex-wrap:wrap;gap:8px;margin:36px 0 26px;}
.related{margin-top:48px;}
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}

/* ---------- ท้ายเว็บ ---------- */
.foot{background:var(--ink);color:#9FBAB6;padding:44px 0 30px;}
.foot-in{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
.foot h4{font-family:'Bai Jamjuree',sans-serif;color:#fff;font-size:15px;margin-bottom:12px;font-weight:600;}
.foot p,.foot a{font-size:13.5px;line-height:1.9;color:#9FBAB6;display:block;}
.foot a:hover{color:var(--gold);}
.foot-bot{margin-top:32px;padding-top:18px;border-top:1px solid #1d474b;font-family:'IBM Plex Mono',monospace;font-size:11px;color:#6d8987;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;}

@media (max-width:960px){
  .hero-in{grid-template-columns:1fr;gap:32px;}
  .hname{font-size:40px;}
  .main{grid-template-columns:1fr;gap:32px;}
  .rail{position:static;}
  .links,.nav .searchbox{display:none;}
  .burger{display:block;}
  .foot-in{grid-template-columns:1fr 1fr;}
}
@media (max-width:640px){
  .grid,.related-grid{grid-template-columns:1fr;}
  .hname{font-size:33px;}
  .read-title{font-size:27px;}
  .prose p,.prose li{font-size:16px;}
  .field{grid-template-columns:1fr;gap:2px;}
  .sortbox{margin-left:0;width:100%;}
  .foot-in{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;}
  .card:hover,.feat:hover{transform:none;}
}