:root{
  --bg:#ffffff;
  --bg2:#f6f7fb;
  --paper:#ffffff;
  --ink:#0b1220;
  --muted:#6b7280;
  --line:#e5e7eb;
  --shadow:0 18px 55px rgba(0,0,0,.08);
  --shadow2:0 10px 26px rgba(0,0,0,.07);
  --radius:18px;
}
*{box-sizing:border-box}
html,body{height:100%}
body.paper{
  margin:0;
  font-family: system-ui,-apple-system,Segoe UI,Roboto,Arial,"Noto Sans Thai",sans-serif;
  color:var(--ink);
  background:
    radial-gradient(1200px 700px at 15% 10%, rgba(37,99,235,.06) 0%, rgba(37,99,235,0) 60%),
    radial-gradient(900px 600px at 85% 15%, rgba(14,165,233,.06) 0%, rgba(14,165,233,0) 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
}
a{color:inherit}
.container{max-width:1100px;margin:0 auto;padding:22px 18px}
.panel{background:var(--paper);border:1px solid rgba(229,231,235,.85);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}
.masthead{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;padding:18px 18px 14px;border-radius:22px;background:rgba(255,255,255,.72);border:1px solid rgba(229,231,235,.9);backdrop-filter: blur(8px);box-shadow:var(--shadow2)}
.paper-title{font-size:34px;font-weight:950;letter-spacing:.2px}
.paper-sub{color:var(--muted);margin-top:6px;font-size:14px}
.paper-nav{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.chip{padding:6px 10px;border-radius:999px;background:#f1f5f9;border:1px solid var(--line);font-size:12px;font-weight:800;color:#0f172a}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:14px;padding:10px 14px;text-decoration:none;cursor:pointer;font-weight:900;border:1px solid var(--line);background:#fff}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn.primary{background:#111827;border-color:#111827;color:#fff}
.btn.ghost{background:#fff}
.btn.tiny{padding:8px 10px;border-radius:12px;font-size:12px}
.btn.danger{background:#ef4444;border-color:#ef4444;color:#fff}
.notice{margin:14px 0;padding:12px 14px;border-radius:14px;font-weight:900;border:1px solid var(--line);background:#fff}
.notice.ok{border-left:6px solid #10b981}
.notice.err{border-left:6px solid #ef4444}
.h1{font-size:34px;margin:0 0 10px}
.h2{font-size:20px;font-weight:950;margin:0 0 10px}
.muted{color:var(--muted)}
.small{font-size:12px}
.form label{display:block;margin:10px 0 6px;font-weight:900;font-size:13px}
.form input,.form textarea,.form select{width:100%;border:1px solid var(--line);border-radius:14px;padding:10px 12px;font-size:14px;outline:none;background:#fff}
.form textarea{resize:vertical}
.row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.actions{display:flex;justify-content:flex-end;gap:10px;margin-top:10px;flex-wrap:wrap}
.danger{margin-top:10px}
.grid2{display:grid;grid-template-columns:1.2fr .8fr;gap:14px;margin-top:14px}
.narrow{max-width:720px;margin:0 auto}
.list{display:flex;flex-direction:column;gap:10px;margin-top:10px}
.list-item{display:flex;justify-content:space-between;align-items:center;text-decoration:none;padding:12px 12px;border-radius:14px;border:1px solid var(--line);background:#fff}
.list-item:hover{box-shadow:var(--shadow2)}
.tag{padding:4px 10px;border-radius:999px;background:#111827;color:#fff;font-size:12px;font-weight:900}
.daynav{display:flex;justify-content:space-between;gap:10px;margin:16px 0}
.post-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.title{font-size:18px;font-weight:950;text-decoration:none}
.title:hover{text-decoration:underline}
.meta{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:12px}
.summary{margin-top:8px;line-height:1.55;color:#111827}
.gallery{display:grid;grid-template-columns:repeat(3, 1fr);gap:10px;margin-top:10px}
.gallery.big{grid-template-columns:repeat(2, 1fr)}
.gimg{display:block;border-radius:14px;overflow:hidden;border:1px solid rgba(229,231,235,.9);background:#fff}
.gimg img{width:100%;height:180px;object-fit:cover;display:block;transition:transform .35s ease}
.gimg:hover img{transform:scale(1.03)}
.article .lead{font-size:16px;line-height:1.7}
.article .content{line-height:1.8;margin-top:14px;font-size:16px}
.footer{color:var(--muted);text-align:center;margin:18px 0;font-size:12px}
.reveal{opacity:0;transform:translateY(10px);transition:opacity .55s ease, transform .55s ease}
.reveal.is-in{opacity:1;transform:translateY(0)}
.imggrid{display:grid;grid-template-columns:repeat(3, 1fr);gap:10px;margin-top:12px}
.imgcard{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff}
.imgcard img{width:100%;height:140px;object-fit:cover;display:block}
.imgmeta{padding:10px;color:var(--muted);font-size:12px}

/* Timeline */
.timeline.alt{position:relative;margin:22px 0 10px;padding:6px 0}
.timeline.alt::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:4px;transform:translateX(-50%);border-radius:999px;background:rgba(17,24,39,.14)}
.t-item{position:relative;display:grid;grid-template-columns:1fr 120px 1fr;align-items:start;margin:16px 0;gap:12px}
.t-dot{position:absolute;left:50%;top:24px;transform:translateX(-50%);width:18px;height:18px;border-radius:999px;background:#111827;box-shadow:0 0 0 6px rgba(17,24,39,.10)}
.t-time{grid-column:2;text-align:center;padding-top:16px;font-weight:950;color:var(--muted);font-size:12px}
.t-card{padding:16px}
.t-item.left .t-card{grid-column:1;justify-self:end;width:min(520px,100%);position:relative}
.t-item.right .t-card{grid-column:3;justify-self:start;width:min(520px,100%);position:relative}
.t-item.left .t-card::after{content:"";position:absolute;top:26px;right:-18px;width:0;height:0;border:10px solid transparent;border-left-color:rgba(229,231,235,.95)}
.t-item.right .t-card::after{content:"";position:absolute;top:26px;left:-18px;width:0;height:0;border:10px solid transparent;border-right-color:rgba(229,231,235,.95)}

/* Mobile */
@media (max-width: 980px){ .grid2{grid-template-columns:1fr} }
@media (max-width: 820px){
  .timeline.alt::before{left:22px;transform:none}
  .t-item{grid-template-columns:54px 1fr;gap:12px}
  .t-dot{left:22px;transform:none}
  .t-time{grid-column:1;text-align:right;padding-top:14px}
  .t-item.left .t-card,.t-item.right .t-card{grid-column:2;justify-self:stretch;width:100%}
  .t-item.left .t-card::after,.t-item.right .t-card::after{display:none}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .gallery.big{grid-template-columns:1fr}
  .imggrid{grid-template-columns:repeat(2,1fr)}
  .daynav{flex-direction:column;align-items:stretch}
  .paper-title{font-size:26px}
  .row{grid-template-columns:1fr}
}


/* FIX: timeline time overlaps dot */
.timeline.alt::before{ z-index:1; }
.t-item{ position:relative; }
.t-dot{ z-index:4; }

.t-time{
  /* เปลี่ยนจากอยู่ใน grid มาเป็น label ลอยเหนือจุด */
  position:absolute;
  left:10%;
  top:-5px;
  transform:translateX(-50%);
  z-index:3;

  background:rgba(255,255,255,.92);
  border:1px solid var(--line);
  border-radius:999px;
  padding:4px 10px;

  font-weight:950;
  font-size:12px;
  color:var(--muted);
  text-align:center;
}

/* ป้องกันชนกันบนมือถือ */
@media (max-width: 820px){
  .t-time{
    left:-5px;
    transform:none;
    top:0px;
  }
  
  .t-dot{ left:4%;  top:50%; }
  
   .day-header,
  .timeline-date {
    display: block !important;
    font-size: 14px;
    font-weight: 800;
    text-align: center;
    margin: 12px 0;
    color: #111;
  }
}