@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Thai:wght@400;600;800&display=swap');
:root{
  --bg:#f4f5f7; --card:#fff; --ink:#1d2330; --mute:#6b7383; --line:#e1e4ea;
  --brand:#e8552a; --brand-soft:#fde9e2; --ok:#1f9d55; --warn:#c77700; --bad:#d23131;
  --s1:#2a78d6; --s2:#eb6834; --grid:#eceef2;
}
*{box-sizing:border-box}
body{margin:0;font-family:"Noto Sans Thai",system-ui,sans-serif;background:var(--bg);color:var(--ink);font-size:15px}
button,input,select{font:inherit}
header{background:var(--card);border-bottom:1px solid var(--line);padding:12px 20px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
header h1{font-size:18px;margin:0}
header .sub{color:var(--mute);font-size:13px}
nav{display:flex;gap:4px;flex-wrap:wrap;margin-left:auto}
nav button{border:0;background:none;padding:8px 12px;border-radius:8px;cursor:pointer;color:var(--mute)}
nav button.on{background:var(--brand-soft);color:var(--brand);font-weight:600}
main{padding:20px;max-width:1320px;margin:0 auto}
.grid2{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:20px}
@media (max-width:900px){.grid2{grid-template-columns:1fr} main{padding:12px 16px}}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:16px}
.card h2{font-size:16px;margin:0 0 12px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.btn{border:1px solid var(--line);background:#fff;border-radius:8px;padding:8px 14px;cursor:pointer;color:var(--ink);text-decoration:none;display:inline-block}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.btn.danger{color:var(--bad)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.muted{color:var(--mute);font-size:13px}
.pill{display:inline-block;padding:2px 10px;border-radius:99px;font-size:12px;font-weight:600}
.pill.ok{background:#e3f5ea;color:var(--ok)} .pill.bad{background:#fde5e5;color:var(--bad)} .pill.warn{background:#fff1d6;color:var(--warn)} .pill.mute{background:#eceef2;color:var(--mute)}
table{width:100%;border-collapse:collapse}
td,th{padding:8px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
th{font-size:13px;color:var(--mute);font-weight:600}
label.f{display:block;margin-bottom:12px}
label.f span{display:block;font-size:13px;color:var(--mute);margin-bottom:4px}
input[type=text],input[type=password],input[type=number],input[type=time],input[type=date],input[type=datetime-local],select,textarea{border:1px solid var(--line);border-radius:8px;padding:7px 10px;background:#fff;min-width:0;max-width:100%}
.days{display:flex;gap:4px;flex-wrap:wrap}
.days label{border:1px solid var(--line);border-radius:8px;padding:6px 10px;cursor:pointer;user-select:none}
.days input{display:none}
.days label:has(input:checked){background:var(--brand);border-color:var(--brand);color:#fff}
.err{color:var(--bad);font-size:14px;margin-top:8px;white-space:pre-line}
.thumb{width:56px;height:56px;border-radius:6px;overflow:hidden;background:#222;flex:none;position:relative}
.thumb .led{position:absolute;inset:0}
.scroll{overflow-x:auto}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:#1d2330;color:#fff;padding:10px 16px;border-radius:8px;font-size:14px;z-index:9;max-width:90vw;white-space:pre-line}
.toast.bad{background:var(--bad)}
/* ตารางสัปดาห์ */
.week{display:grid;grid-template-columns:52px repeat(24,minmax(0,1fr));font-size:11px;min-width:640px}
.week .h{color:var(--mute);text-align:center;padding:2px 0}
.week .d{color:var(--mute);padding:6px 4px;font-size:13px}
.week .lane{grid-column:2 / -1;position:relative;height:30px;background:repeating-linear-gradient(90deg,#f0f1f4 0 1px,transparent 1px calc(100%/24));border-radius:4px;margin:2px 0}
.week .blk{position:absolute;top:2px;bottom:2px;border-radius:4px;color:#fff;font-size:11px;padding:2px 6px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.week .blk.special{outline:2px dashed #111;outline-offset:-2px;z-index:1}
.week .blk.off{background:#444!important}
.week .now{position:absolute;top:-2px;bottom:-2px;width:2px;background:var(--bad);z-index:2}
/* พรีวิวจอ */
.screen-wrap{background:#111;border-radius:12px;padding:12px;display:flex;justify-content:center}
.screen-wrap .led{width:100%;max-width:260px}
/* สถิติ */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:16px}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px}
.kpi .v{font-size:28px;font-weight:800;line-height:1.1}
.kpi .l{font-size:13px;color:var(--mute)}
.kpi .d{font-size:13px;margin-top:4px;color:var(--mute)}
.d.good{color:var(--ok)} .d.badd{color:var(--bad)}
.chart{position:relative}
.chart svg{width:100%;height:auto;display:block}
.chart text{font-family:inherit;font-size:11px;fill:var(--mute)}
.tip{position:absolute;pointer-events:none;background:#1d2330;color:#fff;font-size:12px;padding:6px 8px;border-radius:6px;white-space:nowrap;display:none;z-index:2}
.legend{display:flex;gap:16px;font-size:13px;color:var(--mute);margin-bottom:6px;flex-wrap:wrap}
.legend i{display:inline-block;width:14px;height:3px;border-radius:2px;vertical-align:middle;margin-right:6px}
.bar{height:8px;background:#eceef2;border-radius:4px;overflow:hidden;min-width:80px}
.bar>b{display:block;height:100%;background:var(--s1);border-radius:4px}
.viol{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.viol a{display:block;border:1px solid var(--line);border-radius:8px;overflow:hidden;text-decoration:none;color:var(--ink);font-size:13px}
.viol img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#222;display:block}
.viol div{padding:6px 8px}
/* ล็อกอิน */
body.login{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:16px}
body.login .card{width:100%;max-width:360px}
body.login h1{font-size:20px;margin:0}
@media print{header,nav,.grid2>div:last-child,.btn{display:none!important}.grid2{display:block}}
body.login input{width:100%}