/* public/css/app.css — shared styling, light professional theme */
*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#f4f6fb; --card:#ffffff; --ink:#18213a; --dim:#6b7897;
  --line:#e2e7f1; --accent:#2f6fe4; --accent-dark:#1f57c3;
  --gold:#b8860b; --green:#12996b; --red:#d6455d;
  --radius:12px; --shadow:0 2px 14px rgba(24,33,58,.07);
}
body{
  background:var(--bg); color:var(--ink); line-height:1.55;
  font-family:'Inter','Noto Sans SC','Noto Sans Lao',-apple-system,Segoe UI,Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none}
button{font-family:inherit;cursor:pointer}

/* ---------- layout ---------- */
.topbar{
  background:var(--card);border-bottom:1px solid var(--line);padding:12px 22px;
  display:flex;align-items:center;gap:14px;position:sticky;top:0;z-index:20;
}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.logo{
  width:34px;height:34px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--accent),#7a5cf0);
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:12px;letter-spacing:.5px;
}
.brand .nm{font-weight:700;font-size:14.5px;line-height:1.2}
.brand .sl{font-size:11.5px;color:var(--dim)}
.spacer{flex:1}
.wrap{max-width:1180px;margin:0 auto;padding:26px 22px 60px}

/* ---------- controls ---------- */
.langbtn{
  border:1px solid var(--line);background:var(--card);border-radius:8px;
  padding:6px 11px;font-size:12px;color:var(--dim);font-weight:600;
}
.langbtn:hover{border-color:var(--accent);color:var(--accent)}
.btn{
  background:var(--accent);color:#fff;border:none;border-radius:9px;
  padding:11px 18px;font-weight:600;font-size:13.5px;
}
.btn:hover{background:var(--accent-dark)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn.block{width:100%}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--dim)}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn.sm{padding:6px 12px;font-size:12px;border-radius:7px}
.btn.danger{background:var(--red)}
.btn.gold{background:var(--gold)}

label{display:block;font-size:12px;font-weight:600;color:var(--dim);margin:14px 0 6px}
input[type=text],input[type=email],input[type=number],select{
  width:100%;border:1px solid var(--line);border-radius:9px;padding:11px 13px;
  font-size:13.5px;font-family:inherit;color:var(--ink);background:#fff;
}
input:focus,select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(47,111,228,.12)}

/* ---------- surfaces ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:20px;margin-bottom:18px}
.card h2{font-size:16px;margin-bottom:4px}
.card .sub{font-size:12.5px;color:var(--dim);margin-bottom:14px}

.note{font-size:12.5px;border-radius:9px;padding:11px 13px;line-height:1.6;margin-top:14px}
.note.info{background:rgba(47,111,228,.07);color:#2c4a86;border:1px solid rgba(47,111,228,.2)}
.note.warn{background:rgba(184,134,11,.08);color:#7a5a08;border:1px solid rgba(184,134,11,.25)}
.note.err{background:rgba(214,69,93,.08);color:#9c2438;border:1px solid rgba(214,69,93,.25)}
.note.ok{background:rgba(18,153,107,.08);color:#0b6b4b;border:1px solid rgba(18,153,107,.25)}

/* ---------- table ---------- */
table{width:100%;border-collapse:collapse;font-size:13.5px}
th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.6px;color:var(--dim);
  padding:10px 12px;border-bottom:1px solid var(--line)}
td{padding:13px 12px;border-bottom:1px solid var(--line)}
tbody tr.clickable{cursor:pointer}
tbody tr.clickable:hover{background:rgba(47,111,228,.05)}
.catname{font-weight:650}
.catzh{font-size:12px;color:var(--dim)}
.mono{font-family:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}

.pill{display:inline-block;font-size:11px;font-weight:700;padding:3px 10px;border-radius:99px}
.pill.ok{background:rgba(18,153,107,.13);color:var(--green)}
.pill.off{background:rgba(107,120,151,.15);color:var(--dim)}
.pill.warnp{background:rgba(184,134,11,.15);color:var(--gold)}

/* ---------- file rows ---------- */
.filerow{display:flex;align-items:center;gap:12px;padding:13px;border:1px solid var(--line);
  border-radius:10px;margin-bottom:9px;background:var(--card);cursor:pointer}
.filerow:hover{border-color:var(--accent);box-shadow:var(--shadow)}
.fileicon{width:32px;height:38px;border-radius:5px;flex:0 0 auto;display:grid;place-items:center;
  background:rgba(214,69,93,.1);border:1px solid rgba(214,69,93,.25);
  color:#c23c53;font-size:9px;font-weight:800}
.filemeta{flex:1;min-width:0}
.filemeta .t{font-weight:600;font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.filemeta .m{font-size:11.5px;color:var(--dim)}

.crumb{font-size:12.5px;color:var(--dim);margin-bottom:12px}
.crumb a{font-weight:600}
.empty{text-align:center;color:var(--dim);padding:44px 20px;font-size:13.5px}

.stats{display:flex;gap:12px;margin-bottom:18px;flex-wrap:wrap}
.stat{flex:1;min-width:120px;background:var(--card);border:1px solid var(--line);
  border-radius:10px;padding:13px 15px;box-shadow:var(--shadow)}
.stat .v{font-size:22px;font-weight:750;line-height:1.1}
.stat .k{font-size:11px;color:var(--dim);text-transform:uppercase;letter-spacing:.5px;margin-top:2px}

/* ---------- sign-in ---------- */
.signin{max-width:420px;margin:0 auto;padding-top:9vh}
.signin .card{padding:30px}
.signin h1{font-size:19px;margin-bottom:5px}

/* ---------- viewer ---------- */
.viewerbar{background:var(--card);border-bottom:1px solid var(--line);padding:9px 18px;
  display:flex;align-items:center;gap:12px;position:sticky;top:0;z-index:30;flex-wrap:wrap}
.viewerbar .title{font-weight:650;font-size:13.5px;white-space:nowrap;overflow:hidden;
  text-overflow:ellipsis;max-width:46vw}
.pagenav{display:flex;align-items:center;gap:7px;font-size:12.5px;color:var(--dim)}
.iconbtn{width:31px;height:31px;border-radius:7px;border:1px solid var(--line);background:var(--card);
  display:grid;place-items:center;color:var(--dim);font-size:15px;line-height:1}
.iconbtn:hover{border-color:var(--accent);color:var(--accent)}
.iconbtn:disabled{opacity:.4;cursor:not-allowed}

#stage{background:#5a6478;min-height:calc(100vh - 52px);padding:22px 12px 60px;
  display:flex;flex-direction:column;align-items:center;gap:18px}
.pagewrap{position:relative;box-shadow:0 5px 26px rgba(0,0,0,.3);background:#fff;line-height:0}
.pagewrap canvas{display:block;max-width:100%;height:auto}
.wmark{position:absolute;inset:0;pointer-events:none;display:grid;place-items:center;overflow:hidden}
.wmark span{font-size:clamp(13px,2.4vw,26px);font-weight:800;color:rgba(47,111,228,.13);
  transform:rotate(-30deg);white-space:nowrap;letter-spacing:2px;text-align:center}

/* block casual copying of the rendered page */
#stage,#stage *{user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}

@media print{body{display:none !important}}

.spinner{width:24px;height:24px;border:3px solid var(--line);border-top-color:var(--accent);
  border-radius:50%;animation:spin .8s linear infinite;margin:40px auto}
@keyframes spin{to{transform:rotate(360deg)}}

.row{display:flex;gap:12px;flex-wrap:wrap}
.row > *{flex:1;min-width:190px}
.checkline{display:flex;align-items:center;gap:8px;margin-top:14px;font-size:13px}
.checkline input{width:auto}
@media(max-width:620px){
  .wrap{padding:18px 14px 50px}
  .hide-sm{display:none}
}