:root{
  --bg:#f1f5f9;--card:#fff;--ink:#0f172a;--muted:#64748b;--line:#e2e8f0;
  --brand:#0f766e;--brand-2:#14b8a6;--brand-soft:#ccfbf1;
  --present:#16a34a;--present-bg:#dcfce7;
  --absent:#dc2626;--absent-bg:#fee2e2;
  --medical:#2563eb;--medical-bg:#dbeafe;
  --late:#d97706;--late-bg:#fef3c7;
  --r:14px;--shadow:0 1px 3px #0f172a14,0 4px 14px #0f172a0a;
  --safe-b:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:"Segoe UI",Tahoma,"Noto Sans Arabic",system-ui,sans-serif;font-size:15px;line-height:1.5}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--brand)}
.hidden{display:none!important}

/* splash */
.splash{min-height:100vh;display:grid;place-items:center;align-content:center;gap:18px}
.splash img{width:88px;border-radius:22px}
.spinner{width:28px;height:28px;border:3px solid var(--line);border-top-color:var(--brand);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* layout */
.topbar{position:sticky;top:0;z-index:20;background:var(--brand);color:#fff;padding:12px 16px;padding-top:max(12px,env(safe-area-inset-top));display:flex;align-items:center;gap:10px;box-shadow:0 2px 8px #0002}
.topbar .tb-logo{width:34px;height:34px;background:#fff;border-radius:9px;padding:3px;flex:0 0 34px;object-fit:contain}
.topbar h1{font-size:16px;margin:0;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar .who{font-size:12px;opacity:.85;text-align:left}
.topbar button{background:#ffffff22;border:0;color:#fff;border-radius:10px;padding:6px 10px;cursor:pointer}
main{max-width:1100px;margin:0 auto;padding:14px 14px calc(90px + var(--safe-b))}
nav.tabs{position:fixed;bottom:0;inset-inline:0;z-index:20;background:#fff;border-top:1px solid var(--line);display:flex;justify-content:space-around;padding:6px 4px calc(6px + var(--safe-b))}
nav.tabs a{flex:1;text-align:center;text-decoration:none;color:var(--muted);font-size:11px;padding:4px 2px;border-radius:10px}
nav.tabs a .ic{display:block;font-size:21px;line-height:1.2}
nav.tabs a.on{color:var(--brand);font-weight:600;background:var(--brand-soft)}
@media(min-width:900px){
  nav.tabs{position:sticky;top:56px;bottom:auto;border:0;border-bottom:1px solid var(--line);justify-content:center;gap:6px;padding:8px}
  nav.tabs a{flex:0 0 auto;font-size:14px;padding:8px 16px;display:flex;gap:6px;align-items:center}
  nav.tabs a .ic{display:inline;font-size:16px}
  main{padding-bottom:40px}
}

/* components */
.card{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:16px;margin-bottom:14px}
.card h2{font-size:16px;margin:0 0 12px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:end}
.row>*{flex:1 1 140px}
.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid #cbd5e1;border-radius:10px;background:#fff;min-height:44px}
input:focus,select:focus{outline:2px solid var(--brand-2);border-color:transparent}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;border-radius:10px;padding:10px 16px;min-height:44px;cursor:pointer;background:var(--brand);color:#fff;font-weight:600;white-space:nowrap}
.btn:disabled{opacity:.5;cursor:default}
.btn.ghost{background:#fff;color:var(--brand);border:1px solid #99f6e4}
.btn.light{background:#f1f5f9;color:var(--ink)}
.btn.danger{background:var(--absent)}
.btn.sm{min-height:34px;padding:6px 10px;font-size:13px}
.btn.block{width:100%}
.muted{color:var(--muted);font-size:13px}
.badge{display:inline-block;white-space:nowrap;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600;background:#f1f5f9}
.st-present{color:var(--present);background:var(--present-bg)}
.st-absent{color:var(--absent);background:var(--absent-bg)}
.st-medical{color:var(--medical);background:var(--medical-bg)}
.st-late{color:var(--late);background:var(--late-bg)}
.empty{text-align:center;color:var(--muted);padding:30px 10px}

/* stats */
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:14px}
@media(min-width:700px){.stats{grid-template-columns:repeat(5,1fr)}}
.stats .stat:first-child{grid-column:1/-1}
@media(min-width:700px){.stats .stat:first-child{grid-column:auto}}
.stat{background:#fff;border-radius:var(--r);padding:14px;box-shadow:var(--shadow);border-top:4px solid var(--line)}
.stat b{display:block;font-size:26px;line-height:1.2}
.stat span{font-size:12px;color:var(--muted)}
.stat.present{border-color:var(--present)}.stat.absent{border-color:var(--absent)}.stat.medical{border-color:var(--medical)}.stat.late{border-color:var(--late)}
.bars{display:flex;align-items:flex-end;gap:4px;height:120px;padding-top:8px}
.bars>div{max-width:40px}
.bars .b{flex:1;display:flex;flex-direction:column-reverse;gap:1px;min-width:0}
.bars .b i{display:block;border-radius:3px 3px 0 0}
.bars .lbl{font-size:10px;color:var(--muted);text-align:center;margin-top:4px}
.legend{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin-top:8px}
.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-inline-end:4px;vertical-align:middle}

/* tables */
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:9px 8px;border-bottom:1px solid var(--line);text-align:right;vertical-align:middle}
th{font-size:12px;color:var(--muted);font-weight:600;background:#f8fafc;position:sticky;top:0}
td.num,th.num{text-align:center}
tr.click{cursor:pointer}tr.click:hover{background:#f8fafc}

/* attendance sheet */
.sheet-head{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:10px}
.sheet-head .count{font-size:13px;color:var(--muted);flex:1}
.stu{display:flex;align-items:center;gap:10px;padding:10px 4px;border-bottom:1px solid var(--line)}
.stu:last-child{border-bottom:0}
.stu .n{width:26px;text-align:center;color:var(--muted);font-size:12px}
.stu .nm{flex:1;min-width:0}
.stu .nm b{display:block;font-weight:600;font-size:13px;line-height:1.35;white-space:normal;word-break:break-word}
.stu .nm small{color:var(--muted);font-size:11px}
.stu.flash{animation:flash 1.6s ease}
@keyframes flash{0%,40%{background:#fef9c3}100%{background:transparent}}
.seg{display:flex;border-radius:10px;overflow:hidden;border:1px solid var(--line);flex-shrink:0}
.seg button{border:0;background:#fff;padding:8px 9px;font-size:12px;cursor:pointer;min-width:44px;min-height:40px;color:var(--muted);border-inline-start:1px solid var(--line)}
.seg button:first-child{border-inline-start:0}
.seg button.on.present{background:var(--present);color:#fff}
.seg button.on.absent{background:var(--absent);color:#fff}
.seg button.on.medical{background:var(--medical);color:#fff}
.seg button.on.late{background:var(--late);color:#fff}
.seg button:disabled{cursor:default}
@media(max-width:420px){.seg button{min-width:33px;padding:8px 3px;font-size:10.5px}.stu{gap:5px}.stu .n{width:16px;font-size:11px}.stu .nm b{font-size:12px}}
.savebar{position:sticky;bottom:calc(68px + var(--safe-b));z-index:15;display:flex;gap:8px;background:#ffffffee;backdrop-filter:blur(6px);padding:10px;border-radius:var(--r);box-shadow:0 -2px 14px #0f172a1a;margin-top:10px}
@media(min-width:900px){.savebar{bottom:12px}}
.savebar .btn{flex:1}
.dirty-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--late);margin-inline-start:6px}

/* mic */
.mic{width:48px;height:48px;min-height:48px;border-radius:50%;padding:0;font-size:20px;flex:0 0 48px!important}
.mic.on{background:var(--absent);animation:pulse 1.2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 #dc262666}70%{box-shadow:0 0 0 14px #dc262600}100%{box-shadow:0 0 0 0 #dc262600}}
.voice-panel{background:#0f172a;color:#e2e8f0;border-radius:var(--r);padding:12px 14px;margin-bottom:12px;font-size:14px}
.voice-panel .heard{font-size:16px;color:#fff;min-height:24px}
.voice-panel .hint{font-size:12px;color:#94a3b8;margin-top:4px}
.voice-log{max-height:120px;overflow:auto;margin-top:8px;font-size:13px}
.voice-log div{padding:3px 0;border-top:1px solid #1e293b}

/* search box with mic */
.searchbox{display:flex;gap:8px;align-items:center}
.searchbox input{flex:1}

/* toast & modal */
#toast{position:fixed;bottom:calc(84px + var(--safe-b));left:50%;transform:translateX(-50%) translateY(20px);background:#0f172a;color:#fff;padding:10px 16px;border-radius:12px;font-size:14px;opacity:0;pointer-events:none;transition:.25s;z-index:100;max-width:90vw;display:flex;gap:10px;align-items:center}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0);pointer-events:auto}
#toast.err{background:var(--absent)}
#toast button{background:#ffffff26;border:0;color:#fff;border-radius:8px;padding:4px 10px;cursor:pointer}
.modal{position:fixed;inset:0;background:#0f172a80;z-index:90;display:flex;align-items:flex-end;justify-content:center}
@media(min-width:700px){.modal{align-items:center}}
.modal-box{background:#fff;width:100%;max-width:560px;max-height:90vh;overflow:auto;border-radius:18px 18px 0 0;padding:18px 18px calc(18px + var(--safe-b))}
@media(min-width:700px){.modal-box{border-radius:18px}}
.modal-box h3{margin:0 0 14px;font-size:17px}
.modal-box .field{margin-bottom:12px}
.modal-actions{display:flex;gap:8px;margin-top:16px}
.modal-actions .btn{flex:1}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{border:1px solid var(--line);border-radius:999px;padding:6px 12px;cursor:pointer;font-size:13px;background:#fff;user-select:none}
.chip.on{background:var(--brand);border-color:var(--brand);color:#fff}

/* login */
.login{min-height:100vh;display:grid;place-items:center;padding:20px;background:linear-gradient(160deg,#0f766e,#134e4a)}
.login .card{width:100%;max-width:380px;padding:26px}
.login img.org-logo{width:100%;max-width:300px;height:auto;display:block;margin:0 auto 14px}
.login h1{text-align:center;font-size:20px;margin:0 0 4px}
.login p{text-align:center;margin:0 0 18px}
.login .field{margin-bottom:12px}
.install-tip{background:#ecfeff;border:1px solid #a5f3fc;color:#155e75;border-radius:12px;padding:10px 12px;font-size:13px;margin-bottom:14px;display:flex;gap:10px;align-items:center}
.install-tip span{flex:1}

/* print */
.print-head{display:none}
.print-head .org-logo{display:block;margin:0 auto 6px;max-width:260px;height:auto}
@media print{
  @page{size:A4;margin:12mm}
  body{background:#fff;font-size:12px}
  .topbar,nav.tabs,.no-print,.savebar,#toast,.modal,.btn,.mic{display:none!important}
  main{padding:0;max-width:none}
  .card{box-shadow:none;border:0;padding:0;margin:0 0 10px}
  .print-head{display:block;text-align:center;border-bottom:2px solid #000;padding-bottom:8px;margin-bottom:12px}
  .print-head h2{margin:0;font-size:18px}
  .print-head div{font-size:12px}
  th{background:#eee!important;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  th,td{border:1px solid #999;padding:5px 6px}
  .badge{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .stats{grid-template-columns:repeat(5,1fr)}
  .stat{box-shadow:none;border:1px solid #ccc}
  .signs{display:flex!important;justify-content:space-around;margin-top:40px;font-size:13px}
  tr{page-break-inside:avoid}
}
.signs{display:none}
.wide{min-width:680px}