/* SMS · ธีมหน้าจอรุ่น 2.6 — ดีไซน์ทันสมัย ขยายเต็มความกว้างจอจริง (โหลดหลังสไตล์หลักของทุกหน้า)
 * - พื้นที่ทำงานยืดตามจอ (ไม่จำกัด 1280px) · จอกว้างมีเมนูข้างถาวร (ย่อ/ขยายได้)
 * - ตัวอักษรขยายตามขนาดจอใหญ่ 1800px/2400px ขึ้นไป · โหมดมืดใช้ตัวแปรสีเดิม
 * พัฒนาระบบโดย ว่าที่ ร.ต.ภัทรกฤต คุ้มผล */
:root{
  --r1:10px;--r2:14px;--r3:18px;
  --sh1:0 1px 2px rgba(16,40,80,.05),0 2px 8px rgba(16,40,80,.04);
  --sh2:0 2px 6px rgba(16,40,80,.06),0 12px 32px rgba(16,40,80,.08);
  --sh3:0 18px 50px rgba(16,40,80,.16);
  --gut:clamp(14px,2.2vw,40px);
  --side:268px;--hdr:64px;
  --glass:rgba(255,255,255,.78);
  --grad:linear-gradient(135deg,var(--accent),color-mix(in srgb,var(--accent) 55%,var(--pink)));
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--glass:rgba(14,26,48,.78);--sh1:0 1px 2px rgba(0,0,0,.3);--sh2:0 2px 6px rgba(0,0,0,.3),0 12px 32px rgba(0,0,0,.28);--sh3:0 18px 50px rgba(0,0,0,.5)}}
:root[data-theme="dark"]{--glass:rgba(14,26,48,.78);--sh1:0 1px 2px rgba(0,0,0,.3);--sh2:0 2px 6px rgba(0,0,0,.3),0 12px 32px rgba(0,0,0,.28);--sh3:0 18px 50px rgba(0,0,0,.5)}

html{scroll-padding-top:calc(var(--hdr) + 12px)}
body{
  background:
    radial-gradient(1200px 520px at 8% -8%,color-mix(in srgb,var(--accent) 13%,transparent),transparent 70%),
    radial-gradient(900px 480px at 100% 0,color-mix(in srgb,var(--pink) 9%,transparent),transparent 70%),
    var(--bg);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
/* ---------- ความกว้างเต็มจอ ---------- */
.top-in,main,.licbar{max-width:none!important}
.top-in{padding:10px var(--gut);position:relative;min-height:var(--hdr)}
main{padding:22px var(--gut) 64px}
.licbar{margin:12px var(--gut) 0!important}
.copyband{max-width:min(1280px,100%)}

/* ---------- ส่วนหัว: กระจกโปร่ง ---------- */
.top{background:var(--glass);-webkit-backdrop-filter:saturate(1.6) blur(14px);backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid color-mix(in srgb,var(--line) 70%,transparent);box-shadow:0 1px 0 rgba(255,255,255,.4) inset}
.top::after{height:2px;background:linear-gradient(90deg,var(--accent),color-mix(in srgb,var(--accent) 40%,var(--pink)) 60%,var(--pink))}
.logo{box-shadow:0 0 0 1px var(--line),0 2px 8px rgba(16,40,80,.1)}
.top nav .btn.ghost{border-radius:12px;padding:7px 12px}
.top nav .btn.ghost.on{background:var(--accent-soft);color:var(--accent);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--accent) 22%,transparent)}
.who{cursor:pointer;padding:3px 4px 3px 4px;gap:8px;transition:border-color .15s,box-shadow .15s}
.who:hover{border-color:var(--accent);box-shadow:var(--sh1)}
.who .av{width:30px;height:30px;border-radius:50%;display:inline-grid;place-items:center;background:var(--grad);color:#fff;font-weight:600;font-size:13px;flex:none}
.who .nm{display:flex;flex-direction:column;line-height:1.2;padding-right:8px;text-align:left}
.who .nm small{font-size:11px;color:var(--muted)}
.umenu{border-radius:var(--r2);box-shadow:var(--sh3);animation:pop .14s ease-out}
@keyframes pop{from{opacity:0;transform:translateY(-4px) scale(.98)}to{opacity:1;transform:none}}

/* ---------- องค์ประกอบ ---------- */
.panel,.kpi,.div,.tw,.eccard,.bigmods .mod{border-radius:var(--r2)}
.panel{box-shadow:var(--sh1);border-color:color-mix(in srgb,var(--line) 80%,transparent)}
.kpi{box-shadow:var(--sh1);position:relative;overflow:hidden;border-color:color-mix(in srgb,var(--line) 80%,transparent)}
.kpi::before{content:"";position:absolute;inset:0 auto 0 0;width:4px;background:var(--grad);opacity:.85}
.kpi b{font-size:26px;letter-spacing:-.01em}
.btn{border-radius:var(--r1);transition:border-color .15s,color .15s,background .15s,box-shadow .15s,transform .05s}
.btn:active{transform:translateY(1px)}
.btn.pri{background:var(--grad);border-color:transparent;box-shadow:0 4px 14px color-mix(in srgb,var(--accent) 28%,transparent)}
.btn.pri:hover{filter:brightness(1.06);box-shadow:0 6px 18px color-mix(in srgb,var(--accent) 34%,transparent)}
.inp{border-radius:var(--r1);transition:border-color .15s,box-shadow .15s}
.chip{border-radius:99px}
.tabs{border-bottom:0;gap:4px;padding:4px;background:color-mix(in srgb,var(--surface2) 80%,transparent);border:1px solid var(--line2);border-radius:14px;width:max-content;max-width:100%}
.tab{border-bottom:0;border-radius:10px;padding:7px 14px;margin:0}
.tab.on{background:var(--surface);color:var(--accent);box-shadow:var(--sh1);border-bottom:0}
.tab:hover:not(.on){color:var(--ink)}
.tw{box-shadow:var(--sh1)}
.t th{position:sticky;top:0;z-index:1}
.t tr.click:hover td{background:color-mix(in srgb,var(--accent-soft) 55%,var(--surface))}
.div{box-shadow:var(--sh1);border-top-width:0;position:relative;overflow:hidden;padding-top:18px}
.div::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:linear-gradient(90deg,var(--dc),color-mix(in srgb,var(--dc) 35%,transparent))}
.mod{transition:border-color .15s,box-shadow .15s,transform .15s,background .15s}
.mod:hover{box-shadow:var(--sh2);transform:translateY(-2px)}
.bigmods{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.bigmods .mod{box-shadow:var(--sh1)}
.quick a{border-radius:12px;transition:box-shadow .15s,border-color .15s}
.quick a:hover{box-shadow:var(--sh1)}
.banner{border-radius:12px}
h1{letter-spacing:-.01em}
/* หน้าเปลี่ยนแบบนุ่มนวล */
main.fx>*{animation:fadeup .22s ease-out both}
@keyframes fadeup{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ---------- เค้าโครงแอป: เมนูข้าง (จอกว้าง ≥ 1180px เมื่อเข้าสู่ระบบ) ---------- */
.shell{display:block}
.side{display:none}
@media (min-width:1180px){
  body.has-side .shell{display:grid;grid-template-columns:var(--side) minmax(0,1fr);align-items:start}
  body.has-side.side-mini{--side:76px}
  body.has-side .side{display:flex;flex-direction:column;position:sticky;top:var(--hdrH,64px);height:calc(100vh - var(--hdrH,64px));overflow:hidden;border-right:1px solid color-mix(in srgb,var(--line) 70%,transparent);background:color-mix(in srgb,var(--surface) 62%,transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
  body.has-side .top nav .nv:not(.keep){display:none}
  body.has-side .brand{min-width:calc(var(--side) - var(--gut) - 14px)}
  body.has-side main{padding-top:20px}
}
.side .sfind{padding:14px 14px 8px}
.side .sfind input{width:100%;border:1px solid var(--line);background:var(--surface);border-radius:12px;padding:8px 12px 8px 34px;font-size:13.5px;outline:none;transition:border-color .15s,box-shadow .15s}
.side .sfind input:focus{border-color:var(--focus);box-shadow:0 0 0 3px var(--accent-soft)}
.side .sfind{position:relative}.side .sfind .ic{position:absolute;left:25px;top:22px;width:17px;height:17px;color:var(--muted);pointer-events:none}
.side .sscroll{flex:1;overflow-y:auto;padding:4px 10px 12px;scrollbar-width:thin;scrollbar-color:var(--line) transparent}
.side a.si,.side button.sg{display:flex;align-items:center;gap:10px;width:100%;border:0;background:none;color:inherit;text-decoration:none;border-radius:11px;padding:7px 9px;font-size:13.5px;cursor:pointer;text-align:left;line-height:1.3;position:relative}
.side a.si:hover,.side button.sg:hover{background:color-mix(in srgb,var(--accent-soft) 60%,transparent)}
.side a.si.on{background:var(--surface);color:var(--mc,var(--accent));font-weight:600;box-shadow:var(--sh1)}
.side a.si.on::before{content:"";position:absolute;left:-10px;top:8px;bottom:8px;width:3px;border-radius:0 3px 3px 0;background:var(--mc,var(--accent))}
.side a.si .t,.side button.sg .t{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.side a.si .aic{width:28px;height:28px;border-radius:9px}.side a.si .aic .ic{width:17px;height:17px}
.side button.sg{margin-top:10px;font-size:11.5px;font-weight:600;color:var(--muted);letter-spacing:.02em;padding:6px 9px}
.side button.sg .ch{width:16px;height:16px;transition:transform .15s;color:var(--muted)}
.side .grp.open button.sg .ch{transform:rotate(90deg)}
.side .grp:not(.open) .gl{display:none}
.side .grp .dotc{width:8px;height:8px;border-radius:50%;background:var(--dc);flex:none}
.side .badge{min-width:20px;height:20px;padding:0 6px;border-radius:10px;background:var(--pink);color:var(--pink-ink);font-size:11px;line-height:20px;text-align:center;font-weight:600}
.side .sfoot{border-top:1px solid var(--line2);padding:8px 10px;display:flex;gap:6px}
.side .sfoot button{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;border:0;background:none;color:var(--muted);border-radius:10px;padding:8px;cursor:pointer;font-size:12.5px}
.side .sfoot button:hover{background:var(--surface2);color:var(--ink)}
.side .sfoot .ic{width:18px;height:18px}
.side .nores{padding:10px;color:var(--muted);font-size:13px}
body.side-mini .side .sfind,body.side-mini .side .t,body.side-mini .side .badge,body.side-mini .side button.sg,body.side-mini .side .sfoot .t{display:none}
body.side-mini .side .grp .gl{display:block!important}
body.side-mini .side a.si{justify-content:center;padding:7px 0}
body.side-mini .side .grp+.grp{border-top:1px solid var(--line2);margin-top:6px;padding-top:6px}
body.side-mini .side a.si[data-n]::after{content:attr(data-n);position:absolute;top:2px;right:6px;min-width:16px;height:16px;border-radius:8px;background:var(--pink);color:var(--pink-ink);font-size:10px;line-height:16px;text-align:center;padding:0 4px}

/* ---------- จอใหญ่: ตัวอักษรและระยะขยายตามจอ ---------- */
@media (min-width:1800px){
  body{font-size:15px}
  :root{--side:288px}
  .kpis{grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
  .main-side{grid-template-columns:minmax(0,1fr) clamp(360px,22vw,480px)}
  .t td{padding:8px 10px}.t th{padding:9px 10px}
}
@media (min-width:2400px){
  body{font-size:16px}
  :root{--side:312px;--hdr:72px}
  h1{font-size:30px}
  .btn{padding:8px 15px}
  .aic{width:52px;height:52px}.aic .ic{width:29px;height:29px}
  .side a.si{font-size:15px;padding:9px 10px}
}
/* จอเล็ก: คงรูปแบบเดิม */
@media (max-width:760px){
  .who{display:none!important}
  .tabs{width:auto;border-radius:12px}
  main{padding:16px 16px 104px}
  .licbar{margin:8px 12px 0!important}
}
@media (prefers-reduced-motion:reduce){main.fx>*,.umenu{animation:none}}
@media print{.side,.top,.tabbar{display:none!important}.shell{display:block!important}body{background:#fff}}
/* v2.7 · ระบบย่อยภายใต้ระบบแม่ (เช่น งานวัดและประเมินผล) */
.side .subs{position:relative;margin:0 0 4px 22px;padding-left:8px;border-left:1.5px dashed var(--line)}
.side a.si.sub{font-size:13.5px;padding:5px 8px;gap:8px}
.side a.si.sub .aic{width:22px;height:22px;border-radius:7px}.side a.si.sub .aic .ic{width:14px;height:14px}
.side a.si.sub.on::before{left:-19px}
body.side-mini .side .subs{margin:0;padding:0;border:0}
body.side-mini .side a.si.sub{padding:5px 0}
.bigmods .mod .msubs{display:block;margin-top:6px;color:var(--mc,var(--accent));font-size:12px;font-weight:500}

/* ===== โทนสีระบบ (ตั้งค่าโรงเรียน → โทนสีระบบ) · html[data-skin] · ค่าเริ่มต้น = classic (น้ำเงิน-ชมพู) ===== */
:root[data-skin="sky"]{
  --bg:#F2F9FE; --surface:#FFFFFF; --surface2:#EDF7FD; --ink:#0D2B45; --muted:#4D6A84; --line:#CDE5F4; --line2:#E2F1FA;
  --accent:#0A77BD; --accent-ink:#FFFFFF; --accent-soft:#DDF1FC; --focus:#0A77BD;
  --pink:#CF3A80; --pink-soft:#FDE8F2; --pink-ink:#FFFFFF;
  --d-acad:#0A77BD; --c-blue:#0A77BD; --c-sky:#0889C2; --c-pink:#CF3A80;
}
:root[data-skin="green"]{
  --bg:#F3FAF6; --surface:#FFFFFF; --surface2:#EEF7F2; --ink:#12301F; --muted:#4F6B5C; --line:#CFE6D9; --line2:#E4F2EA;
  --accent:#137A4B; --accent-ink:#FFFFFF; --accent-soft:#E0F3E8; --focus:#137A4B;
  --pink:#9A5F0C; --pink-soft:#FBF0DC; --pink-ink:#FFFFFF;
  --d-acad:#137A4B; --c-blue:#137A4B;
}
:root[data-skin="purple"]{
  --bg:#F7F4FD; --surface:#FFFFFF; --surface2:#F3EFFB; --ink:#251A44; --muted:#615A7E; --line:#DFD5F2; --line2:#ECE6F8;
  --accent:#6B3FB8; --accent-ink:#FFFFFF; --accent-soft:#EEE7FA; --focus:#6B3FB8;
  --pink:#9A6A0C; --pink-soft:#FBF1DC; --pink-ink:#FFFFFF;
  --d-acad:#6B3FB8; --c-blue:#6B3FB8;
}
@media (prefers-color-scheme: dark){
  :root[data-skin="sky"]:not([data-theme="light"]){--bg:#081B2C; --surface:#0F2538; --surface2:#143049; --ink:#E4F2FC; --muted:#98B6CF; --line:#21445F; --line2:#1A3850; --accent:#6CC4F5; --accent-ink:#06192A; --accent-soft:#143A57; --focus:#6CC4F5; --pink:#F592C2; --pink-soft:#3A1E31; --pink-ink:#06192A; --d-acad:#6CC4F5; --c-blue:#6CC4F5; --c-sky:#7FD3F7; --c-pink:#F592C2}
  :root[data-skin="green"]:not([data-theme="light"]){--bg:#0A1A12; --surface:#11261B; --surface2:#163123; --ink:#E3F5EB; --muted:#9BBDA9; --line:#244A35; --line2:#1C3B2A; --accent:#6FD3A0; --accent-ink:#08170F; --accent-soft:#17402B; --focus:#6FD3A0; --pink:#E9B35C; --pink-soft:#352A14; --pink-ink:#08170F; --d-acad:#6FD3A0; --c-blue:#6FD3A0}
  :root[data-skin="purple"]:not([data-theme="light"]){--bg:#120D22; --surface:#1B1531; --surface2:#231B3E; --ink:#EEE9FA; --muted:#AFA6CC; --line:#372C5C; --line2:#2C2349; --accent:#B79BF2; --accent-ink:#120D22; --accent-soft:#2E2452; --focus:#B79BF2; --pink:#E9B35C; --pink-soft:#352A14; --pink-ink:#120D22; --d-acad:#B79BF2; --c-blue:#B79BF2}
}
:root[data-skin="sky"][data-theme="dark"]{--bg:#081B2C; --surface:#0F2538; --surface2:#143049; --ink:#E4F2FC; --muted:#98B6CF; --line:#21445F; --line2:#1A3850; --accent:#6CC4F5; --accent-ink:#06192A; --accent-soft:#143A57; --focus:#6CC4F5; --pink:#F592C2; --pink-soft:#3A1E31; --pink-ink:#06192A; --d-acad:#6CC4F5; --c-blue:#6CC4F5; --c-sky:#7FD3F7; --c-pink:#F592C2}
:root[data-skin="green"][data-theme="dark"]{--bg:#0A1A12; --surface:#11261B; --surface2:#163123; --ink:#E3F5EB; --muted:#9BBDA9; --line:#244A35; --line2:#1C3B2A; --accent:#6FD3A0; --accent-ink:#08170F; --accent-soft:#17402B; --focus:#6FD3A0; --pink:#E9B35C; --pink-soft:#352A14; --pink-ink:#08170F; --d-acad:#6FD3A0; --c-blue:#6FD3A0}
:root[data-skin="purple"][data-theme="dark"]{--bg:#120D22; --surface:#1B1531; --surface2:#231B3E; --ink:#EEE9FA; --muted:#AFA6CC; --line:#372C5C; --line2:#2C2349; --accent:#B79BF2; --accent-ink:#120D22; --accent-soft:#2E2452; --focus:#B79BF2; --pink:#E9B35C; --pink-soft:#352A14; --pink-ink:#120D22; --d-acad:#B79BF2; --c-blue:#B79BF2}
/* เอกลักษณ์โทนฟ้า-ขาว-ชมพู: แถบสีใต้หัวเว็บ ฟ้า·ขาว·ชมพู และพื้นหัวเว็บไล่ฟ้าอ่อน */
:root[data-skin="sky"] .top{background:linear-gradient(90deg,var(--surface) 0%,var(--surface) 55%,var(--accent-soft) 100%)}
:root[data-skin="sky"] .top::after{background:linear-gradient(90deg,var(--accent) 0 58%,var(--surface) 58% 62%,var(--pink) 62% 100%)!important;height:4px}
:root[data-skin="sky"] body{background-image:linear-gradient(180deg,var(--accent-soft),transparent 320px)}
:root[data-skin="sky"] .btn.pri{background:linear-gradient(180deg,color-mix(in srgb,var(--accent) 88%,#fff),var(--accent))}
/* ตัวอย่างโทนสีในหน้าตั้งค่า */
.skins{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px}
.skin{display:flex;flex-direction:column;gap:6px;padding:10px;border:2px solid var(--line);border-radius:12px;background:var(--surface);cursor:pointer;text-align:left;color:inherit;font:inherit}
.skin.on{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.skin .sw{display:flex;height:28px;border-radius:8px;overflow:hidden;border:1px solid var(--line)}.skin .sw i{flex:1}
.skin b{font-weight:600}.skin span{font-size:12px;color:var(--muted)}
/* แหล่ง AI · หน้าต่างคัดลอก–วาง */
.aisrc{display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.aisrc .chip{border:1px solid var(--line);background:var(--surface);color:var(--ink);font-size:12.5px;padding:4px 11px;cursor:pointer;font-family:inherit}
.aisrc .chip.on{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.aidlg{position:fixed;inset:0;z-index:200;background:rgba(10,20,40,.45);display:flex;align-items:flex-start;justify-content:center;padding:4vh 12px;overflow:auto}
.aidlg-in{background:var(--surface);color:var(--ink);border-radius:14px;max-width:720px;width:100%;padding:16px 18px;display:flex;flex-direction:column;gap:12px;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.aisteps{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:10px}.aisteps li{line-height:1.5}
/* ตั้งค่า → เปิด/ปิดระบบ */
.mgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:12px}
.mgrp{border:1px solid var(--line);border-top:3px solid var(--dc);border-radius:12px;padding:10px 12px;display:flex;flex-direction:column;gap:2px;background:var(--surface)}
.mrow{display:flex;align-items:center;gap:10px;padding:7px 4px;border-bottom:1px solid var(--line2);cursor:pointer}.mrow:last-child{border-bottom:0}
.mrow.sub{padding-left:26px}.mrow.off b{color:var(--muted)}.mrow.off .appi,.mrow.off svg{opacity:.5}
.tgl{appearance:none;-webkit-appearance:none;width:40px;height:22px;border-radius:99px;background:var(--line);position:relative;cursor:pointer;flex:none;transition:background .15s;margin:0}
.tgl::after{content:"";position:absolute;top:3px;left:3px;width:16px;height:16px;border-radius:50%;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.2);transition:left .15s}
.tgl:checked{background:var(--accent)}.tgl:checked::after{left:21px}.tgl:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
/* แถบเลื่อนซ้าย–ขวาของตารางกว้าง (scroll-ui.js): ติดใต้หัวเว็บขณะเลื่อนลง · แถบเลื่อนแสดงตลอด */
.hsbar{position:sticky;top:var(--top-h,0px);z-index:6;display:flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:4px 6px;margin:0 0 6px;box-shadow:0 2px 6px rgba(0,0,0,.06)}
.hsbar[hidden]{display:none}
.hsb{flex:none;width:34px;height:28px;border-radius:8px;border:1px solid var(--line);background:var(--accent-soft);color:var(--accent);font-size:13px;cursor:pointer;line-height:1}
.hsb:disabled{opacity:.35;cursor:default}.hsb:not(:disabled):hover{background:var(--accent);color:var(--accent-ink)}
.hst{flex:1;min-width:60px;overflow-x:scroll;overflow-y:hidden;height:18px;scrollbar-width:auto;scrollbar-color:var(--accent) var(--line2)}
.hsi{height:1px}
.hsn{flex:none;font-size:11.5px;color:var(--muted);white-space:nowrap}
@media (max-width:640px){.hsn{display:none}}
.hst::-webkit-scrollbar,.tw::-webkit-scrollbar{height:12px}
.hst::-webkit-scrollbar-track,.tw::-webkit-scrollbar-track{background:var(--line2);border-radius:99px}
.hst::-webkit-scrollbar-thumb,.tw::-webkit-scrollbar-thumb{background:color-mix(in srgb,var(--accent) 70%,transparent);border-radius:99px;border:2px solid var(--line2)}
.tw{scrollbar-width:auto;scrollbar-color:color-mix(in srgb,var(--accent) 70%,transparent) var(--line2)}
/* คอลัมน์แรกตรึงไว้ขณะเลื่อนตารางกว้าง */
.tw.hs-on table.stick1 th:first-child,.tw.hs-on table.stick1 td:first-child{position:sticky;left:0;z-index:2;background:var(--surface);box-shadow:2px 0 0 var(--line)}
.tw.hs-on table.stick1 thead th:first-child{background:var(--surface2)}

/* ความปลอดภัย */
.secl{display:grid;gap:8px}.seci{display:grid;grid-template-columns:auto minmax(0,1fr);gap:10px;align-items:start;border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:var(--surface)}
.seci.bad{border-color:color-mix(in srgb,var(--bad) 45%,var(--line))}.seci.warn{border-color:color-mix(in srgb,var(--warn,#B7791F) 40%,var(--line))}

/* รูปโปรไฟล์ครู */
.who .av img,.ubtn img{width:100%;height:100%;object-fit:cover;border-radius:50%;display:block}.ubtn:has(img){padding:0;overflow:hidden}.avp{width:36px;height:36px;border-radius:50%;overflow:hidden;flex:none;display:inline-grid;place-items:center;background:var(--accent-soft,#e3eefc);color:var(--accent,#2a78d6);font-weight:600}.avp img{width:100%;height:100%;object-fit:cover;display:block}.avp.sm{width:30px;height:30px;font-size:13px}.avp.lg{width:120px;height:160px;border-radius:14px;font-size:44px}.avbox{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.avbox .stack{align-items:flex-start}
.avc-ov{position:fixed;inset:0;background:rgba(8,20,40,.62);z-index:9999;display:grid;place-items:center;padding:16px}.avc{background:var(--surface,#fff);color:var(--ink);border-radius:18px;padding:18px;display:flex;flex-direction:column;gap:12px;align-items:stretch;max-width:100%;box-shadow:0 20px 50px rgba(0,0,0,.3)}.avc-st{position:relative;overflow:hidden;border-radius:12px;background:#1a2433;touch-action:none;cursor:grab;margin:0 auto;user-select:none}.avc-st:active{cursor:grabbing}.avc-st img{position:absolute;left:50%;top:50%;max-width:none;transform-origin:50% 50%;pointer-events:none}.avc-gr{position:absolute;inset:0;pointer-events:none;box-shadow:inset 0 0 0 2px rgba(255,255,255,.85);background-image:linear-gradient(rgba(255,255,255,.35),rgba(255,255,255,.35)),linear-gradient(rgba(255,255,255,.35),rgba(255,255,255,.35)),linear-gradient(90deg,rgba(255,255,255,.35),rgba(255,255,255,.35)),linear-gradient(90deg,rgba(255,255,255,.35),rgba(255,255,255,.35));background-size:100% 1px,100% 1px,1px 100%,1px 100%;background-position:0 33.33%,0 66.66%,33.33% 0,66.66% 0;background-repeat:no-repeat}.avc-row{display:flex;gap:8px;align-items:center}

/* ไฮไลต์แถวที่กำลังกรอก (ชื่อนักเรียนเด่นขึ้น) */
.ecg tbody tr:focus-within td,.t tbody tr:focus-within>td{background:#fff8dc!important}
.ecg tbody tr:focus-within td.nm,.t tbody tr:focus-within>td:nth-child(2){background:#ffe8a3!important;color:#5a3d00;font-weight:600;box-shadow:inset 3px 0 0 #f0a500}

/* ===== ธีมหน้าจอของผู้ใช้ (ปุ่มธีมบนแถบด้านบน · บันทึกในเครื่อง) · html[data-look] =====
 * light = สว่าง · clean = คลีน (ขาวสะอาด เส้นบาง) · flat = เรียบ (ไม่มีเงา/ไล่สี มุมเหลี่ยมขึ้น) · dark = มืด · mono = ขาวดำ
 * อัตโนมัติ (ไม่มี data-look) = ตามการตั้งค่าของเครื่อง · โทนสีของโรงเรียน (data-skin) ยังใช้ร่วมได้ */
:root[data-look="clean"][data-theme]{--bg:#FFFFFF;--surface:#FFFFFF;--surface2:#F7F8FA;--ink:#18212F;--muted:#5E6878;--line:#E5E8EE;--line2:#EEF0F4;
  --glass:rgba(255,255,255,.94);--sh1:0 1px 2px rgba(15,23,42,.04);--sh2:0 6px 20px rgba(15,23,42,.06);--sh3:0 16px 40px rgba(15,23,42,.10)}
:root[data-look="clean"] body{background:#fff!important;background-image:none!important}
:root[data-look="clean"] .top{background:rgba(255,255,255,.94)!important;border-bottom:1px solid var(--line)!important;box-shadow:none!important}
:root[data-look="clean"] .top::after{height:1px!important;background:var(--line)!important}
:root[data-look="clean"] :is(.panel,.kpi,.tw,.div,.bigmods .mod){box-shadow:none!important;border-color:var(--line)!important}
:root[data-look="clean"] .mod:hover{box-shadow:var(--sh2)!important}
:root[data-look="clean"] .div::before{height:2px!important}
:root[data-look="clean"] .btn.pri{background:var(--accent)!important}
:root[data-look="clean"] h1{color:var(--ink)}
:root[data-look="clean"] .side{background:#fff!important}
:root[data-look="clean"] .aic{background:transparent!important;box-shadow:none!important;border-color:transparent!important}
:root[data-look="clean"] .aic.lg{background:var(--surface2)!important}
:root[data-look="clean"] .banner{background:var(--surface2)!important;border-color:var(--line)!important}

:root[data-look="flat"][data-theme]{--bg:#F1F3F6;--surface:#FFFFFF;--surface2:#F1F3F6;--ink:#1B2430;--muted:#5B6574;--line:#D5DAE1;--line2:#E3E7EC;
  --glass:#FFFFFF;--sh1:none;--sh2:none;--sh3:0 8px 24px rgba(0,0,0,.14);--r1:6px;--r2:8px;--r3:10px;--grad:var(--accent)}
:root[data-look="flat"] body{background:var(--bg)!important;background-image:none!important}
:root[data-look="flat"] .top{background:var(--surface)!important;-webkit-backdrop-filter:none!important;backdrop-filter:none!important;box-shadow:none!important}
:root[data-look="flat"] .top::after{height:2px!important;background:var(--accent)!important}
:root[data-look="flat"] :is(.panel,.kpi,.tw,.div,.mod,.bigmods .mod,.tab.on,.who,.side a.si.on,.quick a,.btn,.inp,.chip,.banner,.umenu,.i18b,.thb){box-shadow:none!important}
:root[data-look="flat"] :is(.panel,.kpi,.tw,.div,.mod,.inp,.btn,.tabs,.tab,.banner,.umenu,.drtype,.adprog,.quick a,.aic,.side a.si,.who,.search,.side input){border-radius:6px!important}
:root[data-look="flat"] .div::before{background:var(--dc,var(--accent))!important}
:root[data-look="flat"] .btn.pri{background:var(--accent)!important;border-color:var(--accent)!important}
:root[data-look="flat"] .mod:hover{transform:none!important;border-color:var(--accent)!important}
:root[data-look="flat"] .kpi::before,:root[data-look="flat"] .kpi::after{opacity:.0}
:root[data-look="flat"] *{transition-duration:0s!important;animation-duration:0s!important}

html[data-look="mono"]{filter:grayscale(1)}
:root[data-look="mono"][data-theme]{--bg:#F4F4F4;--surface:#FFFFFF;--surface2:#F2F2F2;--ink:#111111;--muted:#555555;--line:#D4D4D4;--line2:#E6E6E6;
  --accent:#1F1F1F;--accent-ink:#FFFFFF;--accent-soft:#EBEBEB;--pink:#4A4A4A;--pink-soft:#EFEFEF;--pink-ink:#FFFFFF;--focus:#000;
  --ok:#1F1F1F;--ok-soft:#ECECEC;--warn:#4A4A4A;--warn-soft:#F0F0F0;--bad:#000000;--bad-soft:#E4E4E4;--glass:rgba(255,255,255,.95);
  --d-acad:#222;--d-gen:#444;--d-plan:#666;--d-hr:#333;--c-blue:#222;--c-sky:#3a3a3a;--c-teal:#333;--c-green:#444;--c-amber:#555;--c-orange:#3d3d3d;--c-pink:#4a4a4a;--c-violet:#2d2d2d}
:root[data-look="mono"] body{background:var(--bg)!important;background-image:none!important}
:root[data-look="mono"] .top{background:#fff!important}
:root[data-look="mono"] .chip.bad,:root[data-look="mono"] .banner.bad{font-weight:600}

/* ปุ่มและเมนูธีม */
.thb{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line,#dde4ec);background:var(--surface,#fff);color:inherit;border-radius:999px;padding:5px 9px;margin-left:8px;cursor:pointer;font:inherit;font-size:12px;font-weight:600;flex:none}
.thb svg{width:16px;height:16px}
.thm{position:fixed;z-index:2000;background:var(--surface,#fff);color:var(--ink,#1d2a3a);border:1px solid var(--line,#dde4ec);border-radius:12px;box-shadow:0 12px 30px rgba(18,40,74,.2);padding:6px;display:flex;flex-direction:column;min-width:210px}
.thm .hd{font-size:12px;color:var(--muted);padding:4px 10px 6px}
.thm button{display:flex;align-items:center;gap:10px;border:0;background:none;padding:8px 10px;border-radius:8px;font:inherit;color:inherit;cursor:pointer;text-align:left}
.thm button:hover,.thm button.on{background:var(--accent-soft,#eef3fa)}.thm button.on{font-weight:700}
.thm .sw{width:30px;height:20px;border-radius:5px;border:1px solid rgba(0,0,0,.18);flex:none;display:grid;grid-template-columns:1fr 1fr;overflow:hidden}
.thm .sw i{display:block}.thm small{display:block;color:var(--muted);font-size:11px;font-weight:400}
@media (max-width:560px){.thb .l{display:none}.thb{padding:5px 7px;margin-left:4px}}
@media print{html[data-look="mono"]{filter:none}}