/* ห้องครู — โทนม่วงลาเวนเดอร์ สบายตา */
.wtr,.wtr-ov{--p9:#2f2563;--p8:#3b2f73;--p7:#4a3c8c;--p6:#5b4a9e;--p5:#7c6bc4;--p4:#a99be0;--p3:#cfc5f2;--p2:#e7e1fa;--p1:#f4f1fc;--mut:#625a83;--line:#e3ddf5;--ok:#2f8a5f;--okb:#e2f4ea;--wait:#8a5a00;--waitb:#fdf3dc;--back:#a83b5c;--backb:#fbe5ec;--dir:#5b3fc4;--dirb:#ede9fe;
	font-family:"Sarabun","Noto Sans Thai",system-ui,sans-serif;color:#231d3d;font-size:16px;line-height:1.6}
.wtr{--wtr-w:min(1320px,calc(100vw - 32px));width:var(--wtr-w)!important;max-width:none!important;margin:0 0 0 calc(50% - var(--wtr-w) / 2)!important;padding:4px 0 40px}
.wtr *,.wtr-ov *{box-sizing:border-box}
.wtr button,.wtr-ov button{font:inherit;cursor:pointer}
.wtr [hidden],.wtr-ov [hidden]{display:none!important}
.wtr-loading,.wtr-empty{text-align:center;color:var(--mut);padding:48px 16px}
.wtr-empty small{display:block;margin-top:4px}
.wtr-empty .wtr-btn{margin-top:14px}
.wtr-mut{color:var(--mut);margin:0}.wtr-mut.sm{font-size:.85em}
.wtr-err{color:var(--back);font-weight:600;min-height:1.4em;margin:8px 0 0}
.wtr-warn{background:var(--waitb);color:#6b4a00;border-radius:12px;padding:10px 14px;margin:10px 0;font-size:.95em}

/* ปุ่ม */
.wtr-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:0 18px;border-radius:12px;border:0;background:var(--p5);color:#fff!important;font-weight:700;text-decoration:none!important}
.wtr-btn:hover{background:var(--p6)}
.wtr-btn:disabled{opacity:.5;cursor:not-allowed}
.wtr-btn.g{background:#fff;color:var(--p7)!important;box-shadow:inset 0 0 0 1.5px var(--p3)}
.wtr-btn.ok{background:var(--ok)}.wtr-btn.ok:hover{background:#277550}
.wtr-btn.r{background:#fff;color:var(--back)!important;box-shadow:inset 0 0 0 1.5px #e2a5b6}
.wtr-btn.sm{min-height:36px;padding:0 10px;font-size:.88em;border-radius:9px}
.wtr-pill{display:inline-flex;align-items:center;gap:4px;border:0;border-radius:999px;padding:7px 14px;background:rgba(124,107,196,.13);color:var(--p7)!important;font-weight:600;font-size:.92em;text-decoration:none!important;white-space:nowrap}
.wtr-pill:hover{background:rgba(124,107,196,.22)}
.wtr-pill.w{background:var(--p5);color:#fff!important}
.wtr-link{border:0;background:none;color:var(--p6)!important;font-weight:600;text-decoration:underline;padding:4px 6px}
.wtr-link.w{text-decoration:none;color:var(--p8)!important;text-align:center;line-height:1.3}
.wtr :focus-visible,.wtr-ov :focus-visible{outline:3px solid #f2b705;outline-offset:2px}

/* เข้าสู่ระบบ */
.wtr-login{display:grid;place-items:center;padding:30px 0}
.wtr-lcard{background:linear-gradient(160deg,#fff,var(--p1));border:1px solid var(--line);border-radius:24px;padding:34px 28px;max-width:420px;width:100%;text-align:center;box-shadow:0 10px 30px rgba(76,58,140,.10)}
.wtr-llogo{width:84px;height:84px;margin:0 auto 10px;border-radius:50%;background:var(--p5);color:#fff;display:grid;place-items:center;font-weight:800;overflow:hidden}
.wtr-llogo img{width:100%;height:100%;object-fit:contain;background:#fff}
.wtr-lcard h2{color:var(--p8);margin:4px 0 2px;font-size:1.45em}
.wtr-gbtn{display:flex;justify-content:center;margin:22px 0 12px;min-height:44px}

/* หัว */
.wtr-hd{display:flex;align-items:center;gap:14px;flex-wrap:wrap;background:#fff;border:1px solid var(--line);border-radius:20px;padding:12px 16px;margin-bottom:16px}
.wtr-lg{width:48px;height:48px;border-radius:14px;background:var(--p5);color:#fff;display:grid;place-items:center;font-weight:800;font-size:12px;overflow:hidden;flex:none}
.wtr-lg img{width:100%;height:100%;object-fit:contain;background:#fff}
.wtr-ht{min-width:0;flex:1}.wtr-ht h2{margin:0;color:var(--p8);font-size:1.3em;line-height:1.2}.wtr-ht p{margin:0;color:var(--mut);font-size:.88em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.wtr-tabs{display:flex;gap:6px}
.wtr-tabs button{border:0;border-radius:999px;padding:9px 18px;background:var(--p1);color:var(--p7);font-weight:700;position:relative}
.wtr-tabs button.on{background:var(--p5);color:#fff}
.wtr-badge{position:absolute;top:-6px;right:-4px;background:#d64570;color:#fff;font-size:12px;min-width:22px;height:22px;border-radius:11px;display:grid;place-items:center;padding:0 5px;box-shadow:0 0 0 2px #fff}
.wtr-me{display:flex;gap:6px;flex-wrap:wrap}

/* บอร์ด */
.wtr-board{border-radius:24px;padding:20px 20px 24px;background:linear-gradient(160deg,#ece7fb 0%,#e3dcf8 55%,#d9d0f4 100%);box-shadow:inset 0 0 0 1px #ddd5f3;position:relative;overflow:hidden}
.wtr-board.rv{background:linear-gradient(160deg,#f1ebfa 0%,#e7dcf6 55%,#ddd0f1 100%)}
.wtr-bh{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:10px;color:var(--p8)}
.wtr-bh h3{margin:0;font-size:1.3em}
.wtr-tools{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.wtr-rsel select{font:inherit;font-weight:700;font-size:1.05em;color:var(--p8);border:1.5px solid var(--p3);border-radius:12px;padding:8px 12px;background:#fff;max-width:100%}
.wtr-rsel p{margin-top:4px}
.wtr-prog{height:9px;border-radius:9px;background:rgba(124,107,196,.18);overflow:hidden;margin:2px 0 16px}
.wtr-prog i{display:block;height:100%;background:#8fd6ae;border-radius:9px;transition:width .4s}
.wtr-cols{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;align-items:start}
.wtr-cols.k{grid-template-columns:repeat(5,minmax(0,1fr))}
.wtr-col h4{margin:0 0 8px;color:var(--p8);font-size:1em;display:flex;justify-content:space-between;align-items:center;gap:6px}
.wtr-col h4 small{background:#fff;color:var(--p6);border-radius:99px;padding:0 9px;font-size:.8em;flex:none}
.wtr-rl{font-size:.85em;color:var(--mut);margin:0 2px 8px}.wtr-rl b{color:var(--p7)}.wtr-rl .lt{color:var(--back);font-weight:700}
.wtr-rl a{color:var(--p6)}.wtr-rn{background:rgba(255,255,255,.6);border-radius:8px;padding:4px 8px;margin-top:4px}

.wtr-card{display:block;width:100%;text-align:left;border:0;padding:0;background:#fff;border-radius:16px;overflow:hidden;margin-bottom:12px;box-shadow:0 4px 14px rgba(76,58,140,.10);transition:transform .15s,box-shadow .15s;color:inherit}
button.wtr-card:hover,.wtr-cbtn:hover{transform:translateY(-2px)}
.wtr-card.rvc{padding-bottom:0}
.wtr-cbtn{all:unset;display:block;width:100%;cursor:pointer;transition:transform .15s}
.wtr-th{height:84px;position:relative;display:flex;align-items:flex-end;padding:8px}
.wtr-pg{position:absolute;left:50%;top:10px;transform:translateX(-50%);width:54px;height:70px;background:#fff;border-radius:4px;box-shadow:0 3px 8px rgba(0,0,0,.15);padding:8px 7px}
.wtr-pg i{display:block;height:4px;border-radius:2px;background:#e2e0ea;margin-bottom:5px}.wtr-pg i:first-child{background:var(--p4);width:60%}
.wtr-ft{position:relative;background:#8b5cf6;color:#fff;font-size:11px;font-weight:800;border-radius:6px;padding:0 6px}.wtr-ft.lk{background:#3f7fbf}
.wtr-cb{padding:9px 12px 12px}.wtr-cb b{display:block;line-height:1.35;color:#231d3d}
.wtr-cm{font-size:.8em;color:var(--mut);margin:2px 0 6px}
.wtr-sj{font-size:.85em;color:var(--p6);font-weight:600}
.wtr-who{display:flex;align-items:center;gap:7px}.wtr-who b{font-size:.93em}
.wtr-av{width:26px;height:26px;border-radius:50%;color:#fff;font-size:12px;font-weight:800;display:inline-grid;place-items:center;flex:none}
.wtr-note{background:var(--p1);border-radius:10px;padding:6px 9px;font-size:.84em;margin-top:7px;color:#3a3358}
.wtr-qa{display:flex;gap:6px;padding:0 12px 12px}.wtr-qa .wtr-btn{flex:1}
.wtr-st{display:inline-block;font-size:.78em;font-weight:700;border-radius:999px;padding:2px 10px;line-height:1.6}
.wtr-st.ok{background:var(--okb);color:var(--ok)}.wtr-st.wait{background:var(--waitb);color:var(--wait)}.wtr-st.back{background:var(--backb);color:var(--back)}.wtr-st.dir{background:var(--dirb);color:var(--dir)}.wtr-st.none,.wtr-st.late{background:#f0eef5;color:#6b6585}
.wtr-add{display:block;width:100%;border:2.5px dashed var(--p4);border-radius:16px;color:var(--p6);background:rgba(255,255,255,.45);text-align:center;padding:16px 8px;font-weight:700;margin-bottom:12px;transition:background .15s,border-color .15s}
.wtr-add:hover,.wtr-add.drag{background:#fff;border-color:var(--p5)}
.wtr-add span{display:block;font-size:28px;line-height:1.1}.wtr-add small{font-weight:400;opacity:.85}
.wtr-none{color:var(--mut);text-align:center;padding:10px;font-size:.9em}
.wtr-miss{background:rgba(255,255,255,.65);border-radius:16px;padding:10px;display:flex;flex-wrap:wrap;gap:5px}
.wtr-chipn{display:inline-flex;align-items:center;gap:5px;background:#fff;color:var(--p8);border-radius:99px;padding:3px 10px 3px 3px;font-size:.86em;box-shadow:0 1px 3px rgba(76,58,140,.08)}
.wtr-chipn i{color:var(--mut)}
.wtr-chipn button{border:0;background:none;color:var(--back);font-weight:800;padding:0 2px 0 4px;font-size:1.1em;line-height:1}

/* ตาราง */
.wtr-tw{overflow-x:auto;background:#fff;border-radius:16px;box-shadow:0 4px 14px rgba(76,58,140,.08)}
.wtr-tb{width:100%;border-collapse:collapse;font-size:.92em;min-width:640px}
.wtr-tb th{background:var(--p2);color:var(--p8);padding:8px 6px;font-weight:700;vertical-align:bottom}
.wtr-tb td{padding:7px 6px;border-top:1px solid var(--line);text-align:center;white-space:nowrap}
.wtr-tb td:first-child{text-align:left}.wtr-tb td.na{color:#c9c3dc}
.wtr-dot{display:inline-grid;place-items:center;width:24px;height:24px;border-radius:50%;border:0;padding:0;margin:1px;font-size:12px;font-weight:800;color:#fff;vertical-align:middle}
.wtr-dot.ok{background:var(--ok)}.wtr-dot.dir{background:var(--dir)}.wtr-dot.wait{background:#e0a51a}.wtr-dot.back{background:#d64570}.wtr-dot.none{background:#dcd8e8}
.wtr-legend{font-size:.85em;color:var(--mut);margin:10px 2px 0}.wtr-legend .wtr-dot{width:20px;height:20px;font-size:11px}

/* ย้อนหลัง */
.wtr-past{margin-top:16px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px 14px}
.wtr-past summary{cursor:pointer;font-weight:700;color:var(--p7)}
.wtr-plist{margin-top:8px}
.wtr-prow{display:flex;gap:10px;align-items:center;flex-wrap:wrap;width:100%;border:0;background:none;text-align:left;padding:8px 4px;border-top:1px dashed var(--line)}
.wtr-prow span:first-child{font-weight:600;flex:1;min-width:180px}

/* หน้าต่าง */
body.wtr-noscroll{overflow:hidden}
.wtr-ov{position:fixed;inset:0;z-index:100000;background:rgba(35,25,70,.45);display:flex;align-items:flex-start;justify-content:center;padding:4vh 12px;overflow-y:auto}
.wtr-dlg{position:relative;background:#fff;border-radius:22px;width:100%;max-width:560px;padding:22px 22px 20px;box-shadow:0 20px 50px rgba(35,25,70,.3)}
.wtr-dlg.wide{max-width:1100px}
.wtr-dlg h3{margin:0 40px 2px 0;color:var(--p8);font-size:1.25em;line-height:1.35}
.wtr-dlg h4{margin:16px 0 6px;color:var(--p7)}
.wtr-x{position:absolute;top:10px;right:12px;width:40px;height:40px;border-radius:50%;border:0;background:var(--p1);color:var(--p7);font-size:24px;line-height:1}
.wtr-lb{display:block;font-weight:700;color:var(--p7);font-size:.92em;margin:12px 0 5px}
.wtr-in{width:100%;border:1.5px solid var(--line);border-radius:12px;padding:10px 12px;font:inherit;font-size:16px;background:#fff;color:#231d3d}
.wtr-in:focus{outline:none;border-color:var(--p5);box-shadow:0 0 0 3px var(--p2)}
.wtr-acts{display:flex;gap:8px;justify-content:flex-end;flex-wrap:wrap;margin-top:14px}
.wtr-drop{display:flex;flex-direction:column;align-items:center;gap:4px;text-align:center;border:2.5px dashed var(--p4);border-radius:18px;padding:22px 14px;margin-top:14px;background:var(--p1);cursor:pointer;color:var(--p8)}
.wtr-drop.drag{background:var(--p2);border-color:var(--p5)}
.wtr-drop.picked{border-style:solid;border-color:var(--ok);background:var(--okb);color:#1f5e40}
.wtr-drop .big{font-size:34px;line-height:1}.wtr-drop small{color:var(--mut)}
.wtr-or{text-align:center;color:var(--mut);margin:12px 0 -4px;font-size:.9em}
.wtr-bar{height:8px;border-radius:8px;background:var(--p2);overflow:hidden;margin-top:12px}.wtr-bar i{display:block;height:100%;width:0;background:var(--p5);transition:width .2s}
.wtr-dh{display:flex;gap:12px;align-items:center}.wtr-dh .wtr-av{width:44px;height:44px;font-size:18px}
.wtr-dst{margin:10px 0 12px;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.wtr-dgrid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:18px}
.wtr-pv{width:100%;height:70vh;border:1px solid var(--line);border-radius:14px;background:#f6f5fa;display:block}
.wtr-pv.img{height:auto;max-height:70vh;object-fit:contain}
.wtr-pv-none{border:1px dashed var(--p3);border-radius:14px;background:var(--p1);padding:40px 16px;text-align:center;color:var(--p8);display:flex;flex-direction:column;align-items:center;gap:12px}
.wtr-pv-none small{color:var(--mut)}
.wtr-rv{background:var(--p1);border-radius:16px;padding:4px 14px 14px}
.wtr-tl,.wtr-vl{list-style:none;margin:0;padding:0}
.wtr-tl li{border-left:3px solid var(--p3);padding:3px 0 8px 10px;font-size:.92em}
.wtr-tl li.a-ok{border-color:var(--ok)}.wtr-tl li.a-return{border-color:#d64570}.wtr-tl li.a-note{border-color:#e0a51a}
.wtr-ct{background:var(--p1);border-radius:10px;padding:5px 9px;margin-top:3px;white-space:pre-wrap}
.wtr-vl li{font-size:.9em;padding:3px 0}.wtr-vl a{color:var(--p6)}
.wtr-rf{background:var(--p1);border-radius:16px;padding:2px 14px 14px;margin-top:12px}
.wtr-rlist{list-style:none;margin:0;padding:0;max-height:300px;overflow:auto}
.wtr-rlist li{display:flex;justify-content:space-between;gap:8px;align-items:center;padding:8px 2px;border-top:1px dashed var(--line);font-size:.93em}
.wtr-rlist li.off{opacity:.65}.wtr-rlist li>div:last-child{flex:none}
.wtr-chips{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0}
.wtr-chips .wtr-chipn{padding:5px 8px 5px 12px;background:var(--p1)}
.wtr-addrow{display:flex;gap:6px}.wtr-addrow .wtr-in{flex:1}
.wtr-toast{position:fixed;left:50%;bottom:22px;transform:translate(-50%,20px);opacity:0;pointer-events:none;background:#2f2563;color:#fff;padding:12px 18px;border-radius:14px;z-index:100001;max-width:92vw;box-shadow:0 8px 24px rgba(0,0,0,.25);transition:opacity .2s,transform .2s;font-family:"Sarabun",sans-serif}
.wtr-toast.show{opacity:1;transform:translate(-50%,0)}.wtr-toast.bad{background:#a83b5c}

@media (max-width:1100px){.wtr-cols.k{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}}
@media (max-width:820px){
	.wtr-dgrid{grid-template-columns:minmax(0,1fr)}
	.wtr-pv{height:60vh}
	.wtr-hd{padding:10px 12px}.wtr-tabs{order:3;width:100%}.wtr-tabs button{flex:1}
	.wtr-me{margin-left:auto}
	.wtr-board{padding:14px 12px 18px;border-radius:18px}
	.wtr-cols,.wtr-cols.k{grid-template-columns:minmax(0,1fr)}
	.wtr-dlg{padding:18px 14px 16px;border-radius:18px}
	.wtr-ov{padding:2vh 8px}
}
@media (prefers-reduced-motion:reduce){.wtr *,.wtr-toast{transition:none!important}}