:root{
  --ink:#1E2A4A;
  --ink-2:#28395F;
  --gold:#C99A3E;
  --gold-light:#E7C77C;
  --paper:#F6F4EF;
  --paper-2:#EFEAE0;
  --card:#FFFFFF;
  --question:#C0392B;
  --answer:#1C1C1C;
  --muted:#5B6B82;
  --success:#3F8757;
  --danger:#C0392B;
  --border:#E4E0D6;
  --radius:14px;
  --shadow:0 2px 10px rgba(30,42,74,0.08);
  font-size:16px;
}

*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Noto Serif Bengali','Hind Siliguri', -apple-system, serif;
  -webkit-tap-highlight-color:transparent;
  overscroll-behavior:none;
}
h1,h2,h3,.display{
  font-family:'Noto Serif Bengali', 'Hind Siliguri', serif;
  font-weight:400;
}
button{font-family:inherit;}
input,textarea,select{font-family:'Noto Serif Bengali','Hind Siliguri', sans-serif;}

#app{height:100%;min-height:100vh;}
.screen{min-height:100vh;display:flex;flex-direction:column;}
.screen[hidden]{display:none !important;}
.screen-enter{animation:screenFade .32s ease;}
@keyframes screenFade{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}

/* ---------- Login ---------- */
#screen-login{
  align-items:center;justify-content:center;
  background:radial-gradient(circle at 30% 10%, var(--ink-2), var(--ink) 65%);
  padding:32px 24px;
}
.login-wrap{width:100%;max-width:380px;text-align:center;}
.brand-mark{margin-bottom:10px;}
.brand-title{color:#fff;font-size:1.9rem;margin:6px 0 2px;letter-spacing:.3px;}
.brand-title span{color:var(--gold-light);}
.brand-tag{color:#C7D0E0;font-size:.92rem;margin-bottom:28px;}
.login-version{
  color:#8FA0BF;font-size:.72rem;letter-spacing:.5px;margin-bottom:10px;
  background:rgba(255,255,255,.08);display:inline-block;padding:3px 12px;border-radius:12px;
}
.login-form{
  background:var(--card);border-radius:18px;padding:24px 20px;
  box-shadow:0 12px 30px rgba(0,0,0,.25);text-align:right;
}
.login-form label{
  display:block;text-align:right;font-size:.85rem;color:var(--muted);margin-bottom:14px;
}
.login-form input{
  width:100%;margin-top:6px;padding:12px 14px;border-radius:10px;
  border:1.5px solid var(--border);font-size:1rem;background:var(--paper);
  text-align:left;direction:ltr;
}
.login-form input:focus{outline:2px solid var(--gold);border-color:var(--gold);}
.password-field{position:relative;display:flex;align-items:center;}
.password-field input{padding-right:44px;}
.password-toggle{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  background:none;border:none;padding:6px;color:var(--muted);display:flex;cursor:pointer;
}
.password-toggle.active{color:var(--gold);}
.login-hint{color:#B9C2D6;font-size:.8rem;margin-top:16px;}
.form-error{color:#ffd9d3;background:rgba(192,57,43,.85);padding:8px 10px;border-radius:8px;font-size:.85rem;margin-bottom:12px;}

/* ---------- Buttons ---------- */
.btn{
  border:none;border-radius:10px;padding:12px 18px;font-size:.95rem;font-weight:600;
  cursor:pointer;transition:transform .08s ease, opacity .15s;
}
.btn:active{transform:scale(.97);}
.btn-block{width:100%;}
.btn-primary{background:var(--ink);color:#fff;}
.btn-gold{background:var(--gold);color:#1E1500;}
.btn-outline{background:transparent;border:1.5px solid var(--ink);color:var(--ink);}
.btn-danger{background:var(--danger);color:#fff;}
.btn-success{background:var(--success);color:#fff;}
.btn-ghost{background:var(--paper-2);color:var(--ink);}
.crop-choice-btn{font-weight:700;letter-spacing:.2px;}
.crop-choice-skip{border:1.5px solid var(--ink);background:var(--paper);}
.crop-choice-confirm{box-shadow:0 3px 10px rgba(30,42,74,.35);}
.btn-ghost-dark{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.3);}
.btn-sm{padding:7px 12px;font-size:.8rem;border-radius:8px;}
.btn:disabled{opacity:.5;cursor:not-allowed;}
.btn-spinner{
  display:inline-block;width:14px;height:14px;vertical-align:middle;margin-inline-start:6px;
  border:2px solid rgba(255,255,255,.45);border-top-color:#fff;border-radius:50%;
  animation:spin .6s linear infinite;
}
.btn-outline .btn-spinner,.btn-ghost .btn-spinner{border-color:rgba(30,42,74,.25);border-top-color:var(--ink);}

/* ---------- Like button ---------- */
.like-btn{
  display:inline-flex;align-items:center;gap:5px;background:none;border:none;color:var(--muted);
  font-size:.8rem;padding:4px 6px;cursor:pointer;transition:color .15s ease;
}
.like-btn svg{transition:transform .18s cubic-bezier(.34,1.56,.64,1);}
.like-btn.liked{color:var(--question);}
.like-btn.liked svg{transform:scale(1.15);}
.like-btn:active svg{transform:scale(.85);}

/* ---------- Blocked ---------- */
.screen-black{background:#0A0A0A;color:#fff;align-items:center;justify-content:center;text-align:center;}
.blocked-wrap{max-width:320px;padding:24px;}
.blocked-wrap h2{margin:16px 0 8px;font-size:1.4rem;}
.blocked-wrap p{color:#B7B7B7;margin-bottom:24px;}

/* ---------- Top bar ---------- */
.topbar{
  position:sticky;top:0;z-index:20;
  background:var(--ink);color:#fff;
  padding:8px 16px;display:flex;align-items:center;justify-content:space-between;
  box-shadow:0 2px 8px rgba(0,0,0,.15);
}
.topbar-brand{display:flex;flex-direction:column;line-height:1.1;}
.topbar-title{font-family:'Noto Serif Bengali',serif;font-size:1.15rem;}
.topbar-title b{color:var(--gold-light);font-weight:600;}
.topbar-version{font-size:.65rem;color:#9FB0CC;letter-spacing:.5px;}
.topbar-user{display:flex;align-items:center;gap:8px;font-size:.85rem;max-width:40%;cursor:pointer;}
.topbar-user span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.pdf-gen-shortcut-btn{
  width:32px;height:32px;border-radius:50%;border:1px solid var(--border);background:var(--card);
  color:var(--gold);display:flex;align-items:center;justify-content:center;flex-shrink:0;
  font-size:.95rem;margin-right:8px;cursor:pointer;
}
.pdf-gen-shortcut-btn[hidden]{display:none !important;}
.pdf-gen-shortcut-btn:active{transform:scale(.94);}

.impersonation-banner{
  background:var(--gold);color:#1E1500;font-size:.78rem;font-weight:600;
  padding:7px 14px;text-align:center;
}
.impersonation-banner button{
  background:rgba(30,21,0,.15);border:none;color:#1E1500;font-weight:700;
  padding:3px 10px;border-radius:10px;font-size:.75rem;
}

.avatar{border-radius:50%;object-fit:cover;background:var(--paper-2);border:2px solid var(--gold-light);}
.avatar-xs{width:18px;height:18px;border-width:1px;vertical-align:middle;}
.avatar-sm{width:30px;height:30px;}
.avatar-md{width:56px;height:56px;}
.avatar-lg{width:88px;height:88px;}
.avatar-wrap{position:relative;display:inline-block;margin-bottom:10px;}
.avatar-camera-btn{
  position:absolute;bottom:-2px;right:-2px;width:28px;height:28px;border-radius:50%;
  background:var(--gold);color:#1E1500;border:2px solid var(--card);display:flex;align-items:center;justify-content:center;
  font-size:.75rem;
}
.avatar-camera-btn:active{transform:scale(.92);}

/* ---------- Content ---------- */
.content{flex:1;padding:12px 14px 74px;max-width:640px;margin:0 auto;width:100%;}
.section-title{font-size:1.05rem;margin:18px 0 10px;color:var(--ink);display:flex;align-items:center;gap:8px;}
.section-title:first-child{margin-top:4px;}
.eyebrow{font-size:.72rem;letter-spacing:1px;color:var(--gold);text-transform:uppercase;font-weight:700;}

/* ---------- Bottom nav ---------- */
.bottomnav{
  position:fixed;bottom:0;left:0;right:0;z-index:30;
  display:flex;background:var(--card);border-top:1px solid var(--border);
  padding:3px 6px calc(3px + env(safe-area-inset-bottom));
  box-shadow:0 -2px 10px rgba(0,0,0,.06);
}
.nav-btn{
  flex:1;background:none;border:none;display:flex;flex-direction:column;align-items:center;gap:2px;
  padding:5px 4px;color:var(--muted);font-size:.68rem;border-radius:10px;
  transition:color .2s ease, background-color .2s ease;
}
.nav-btn.active{color:var(--ink);background:var(--paper-2);}
.nav-btn.active i{color:var(--gold);}
.nav-btn i{font-size:1.05rem;}

/* ---------- Minimal icon-only refresh buttons ---------- */
.btn-icon-only{width:34px;height:34px;padding:0;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.btn-icon-only i{font-size:.9rem;}

/* ---------- Cards ---------- */
.card{
  background:var(--card);border-radius:var(--radius);padding:16px;margin-bottom:14px;
  box-shadow:var(--shadow);border:1px solid var(--border);
}
.q-card{border-left:4px solid var(--question);}
.q-text{color:var(--question);font-size:1.02rem;font-weight:700;line-height:1.55;margin:0 0 8px;}
.q-meta{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-bottom:10px;}
.select-q-label{display:flex;align-items:center;}
.select-q-label .select-q{width:16px;height:16px;margin:0;}
.tag{
  font-size:.7rem;background:var(--paper-2);color:var(--muted);padding:3px 9px;border-radius:20px;
  border:1px solid var(--border);
}
.tag-marks{background:var(--ink);color:#fff;}
.tag-with-avatar{display:inline-flex;align-items:center;gap:5px;padding-left:4px;}
.tag-status-submitted{background:#FFF3CD;color:#8A6D00;border-color:#F3E2A0;}
.tag-status-approved{background:#E4F3E9;color:var(--success);border-color:#C8E6D4;}
.tag-status-blocked{background:#FDEAE8;color:var(--danger);border-color:#F5CFCB;}
.q-image{max-width:100%;border-radius:10px;margin-bottom:10px;display:block;}
.q-text-row{display:flex;align-items:flex-start;gap:8px;justify-content:space-between;}
.q-icon-row{display:flex;flex-direction:row;gap:5px;flex-shrink:0;margin-top:2px;}
.q-icon-col{display:flex;flex-direction:column;align-items:center;gap:5px;flex-shrink:0;}
.q-image-thumb{width:62px;height:62px;object-fit:contain;border-radius:8px;background:var(--paper-2);border:1px solid var(--border);}
.q-icon-btn{
  width:26px;height:26px;border-radius:50%;border:1px solid var(--border);background:var(--paper);
  color:var(--muted);display:flex;align-items:center;justify-content:center;font-size:.72rem;
}
.q-icon-btn:active{transform:scale(.92);}
.a-text{color:var(--answer);white-space:pre-wrap;line-height:1.6;font-size:.95rem;}
.q-actions{
  display:flex;gap:6px;margin-top:12px;flex-wrap:nowrap;overflow-x:auto;
  -webkit-overflow-scrolling:touch;padding-bottom:3px;scrollbar-width:none;
}
.q-actions::-webkit-scrollbar{display:none;}
.q-actions .btn{flex-shrink:0;white-space:nowrap;padding:5px 8px;font-size:.68rem;border-radius:7px;}
textarea.answer-input{
  width:100%;min-height:110px;border-radius:10px;border:1.5px solid var(--border);
  padding:12px 18px 18px 12px;font-size:.95rem;color:var(--answer);resize:vertical;margin-bottom:10px;background:var(--paper);
  background-image:linear-gradient(135deg, transparent 0 calc(100% - 11px), var(--gold-light) calc(100% - 11px) calc(100% - 8px), transparent calc(100% - 8px) 100%);
  background-repeat:no-repeat;background-position:bottom right;background-size:16px 16px;
}
textarea.answer-input:focus{outline:2px solid var(--gold);border-color:var(--gold);}

/* ---------- Quill রিচ-টেক্সট এডিটর থিমিং ---------- */
.quill-editor-container{margin-bottom:10px;background:var(--paper);border-radius:10px;overflow:hidden;border:1.5px solid var(--border);}
.quill-editor-container .ql-toolbar.ql-snow{
  border:none;border-bottom:1px solid var(--border);background:var(--paper-2);
  border-radius:10px 10px 0 0;padding:6px 8px;
}
.quill-editor-container .ql-container.ql-snow{border:none;font-family:inherit;font-size:.95rem;}
.quill-editor-container .ql-editor{min-height:100px;color:var(--answer);padding:10px 12px;line-height:1.6;}
.quill-editor-container .ql-editor.ql-blank::before{color:var(--muted);font-style:normal;font-family:inherit;}
.quill-editor-container .ql-snow .ql-picker{color:var(--ink);}
.quill-editor-container .ql-snow .ql-stroke{stroke:var(--ink);}
.quill-editor-container .ql-snow .ql-fill{fill:var(--ink);}
.quill-editor-container .ql-dfrac-icon{font-size:13px;font-weight:700;font-family:serif;}
.quill-editor-container .ql-snow.ql-toolbar button:hover,
.quill-editor-container .ql-snow.ql-toolbar button.ql-active{color:var(--gold);}
.quill-editor-container .ql-snow.ql-toolbar button:hover .ql-stroke,
.quill-editor-container .ql-snow.ql-toolbar button.ql-active .ql-stroke{stroke:var(--gold);}
.quill-editor-container .ql-snow.ql-toolbar button:hover .ql-fill,
.quill-editor-container .ql-snow.ql-toolbar button.ql-active .ql-fill{fill:var(--gold);}
.quill-editor-container .ql-snow.ql-toolbar button{border:none !important;background:none !important;outline:none !important;}
.quill-editor-container .ql-snow .ql-picker-label{border:none !important;}
.quill-editor-container .ql-snow .ql-picker-options{border:1px solid var(--border) !important;}
/* Quill-এর তৈরি করা উত্তর দেখানোর সময় (ভিউ মোডে) ভেতরের প্যারাগ্রাফ/লিস্টের মার্জিন যাতে বেশি ফাঁকা না দেখায় */
.a-text p,.qa-answer-box p{margin:0 0 6px;}
.a-text p:last-child,.qa-answer-box p:last-child{margin-bottom:0;}
.a-text ol,.a-text ul,.qa-answer-box ol,.qa-answer-box ul{margin:4px 0 6px 20px;padding:0;}

.answer-image-thumb{
  width:110px;height:110px;object-fit:cover;border-radius:10px;margin:8px 0;display:block;
  border:1.5px solid var(--border);cursor:pointer;background:var(--paper-2);
}
.answer-image-upload{margin:8px 0;}
.answer-image-wrap{position:relative;display:inline-block;margin:8px 0;}
.answer-image-delete{
  position:absolute;top:6px;right:6px;width:28px;height:28px;border-radius:50%;border:none;
  background:rgba(192,57,43,.9);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.75rem;
}
.answer-image-share{
  position:absolute;top:6px;right:40px;width:28px;height:28px;border-radius:50%;border:none;
  background:rgba(30,42,74,.85);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.72rem;
}
.qa-prefix{font-weight:700;color:var(--ink);}
.request-banner{
  display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;
  background:#FFF3CD;border:1px solid #F3E2A0;color:#8A6D00;border-radius:10px;
  padding:8px 10px;margin-bottom:10px;font-size:.78rem;
}
.request-banner b{font-weight:700;}

/* ---------- Lightbox ---------- */
.lightbox-wrap{text-align:center;margin-bottom:14px;}
.lightbox-img{max-width:100%;max-height:70vh;border-radius:10px;}

/* ---------- Image crop modal ---------- */
.crop-wrap{position:relative;width:100%;max-width:320px;margin:0 auto 16px;touch-action:none;user-select:none;}
.crop-wrap img{width:100%;display:block;border-radius:8px;pointer-events:none;}
.crop-box{
  position:absolute;border:2px dashed var(--gold);box-shadow:0 0 0 9999px rgba(0,0,0,.4);
  touch-action:none;cursor:move;
}
.crop-handle{
  position:absolute;right:-9px;bottom:-9px;width:20px;height:20px;background:var(--gold);
  border:2px solid #fff;border-radius:50%;cursor:se-resize;touch-action:none;
}

/* ---------- Difference-type table answer ---------- */
.diff-table-builder{display:flex;flex-direction:column;gap:6px;margin-bottom:10px;}
.diff-row{display:flex;gap:6px;align-items:center;}
.diff-row .diff-cell{
  flex:1;min-width:0;padding:9px 10px;border-radius:8px;border:1.5px solid var(--border);
  background:var(--paper);font-size:.85rem;color:var(--ink);
}
.diff-row-remove{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;border:none;background:var(--paper-2);
  color:var(--danger);display:flex;align-items:center;justify-content:center;font-size:.7rem;
}
.diff-add-row{align-self:flex-start;}
.diff-view-table{width:100%;border-collapse:collapse;margin:6px 0;}
.diff-view-table td{
  border:1px solid var(--border);padding:8px 10px;font-size:.9rem;color:var(--answer);
  vertical-align:top;width:50%;
}
.diff-view-table th{
  border:1px solid var(--border);padding:8px 10px;font-size:.9rem;color:var(--ink);
  vertical-align:top;width:50%;text-align:center;font-weight:700;background:var(--paper-2);
}

/* ---------- Ranking ---------- */
.rank-row{display:flex;align-items:center;gap:12px;padding:10px 4px;border-bottom:1px solid var(--border);}
.rank-row:last-child{border-bottom:none;}
.rank-badge{
  width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:.8rem;background:var(--paper-2);color:var(--muted);flex-shrink:0;
}
.rank-avatar-wrap{position:relative;flex-shrink:0;}
.rank-crown{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%) rotate(0deg);
  font-size:.85rem;line-height:1;filter:drop-shadow(0 1px 1px rgba(0,0,0,.25));
}
.rank-crown-r1{font-size:1.05rem;top:-15px;}
.rank-crown-r2,.rank-crown-r3{font-size:.75rem;opacity:.85;}
.rank-badge.r1{background:#F4D480;color:#5C4300;}
.rank-badge.r2{background:#DCE1E8;color:#4A4A4A;}
.rank-badge.r3{background:#E8C6A0;color:#5C3A1E;}
.rank-info{flex:1;min-width:0;}
.rank-name{font-weight:600;font-size:.92rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.rank-sub{font-size:.75rem;color:var(--muted);}
.rank-points{font-weight:700;color:var(--gold);font-size:.95rem;white-space:nowrap;}

.my-progress-card{background:linear-gradient(135deg,var(--ink),var(--ink-2));color:#fff;}
.my-progress-text{font-size:.88rem;line-height:1.5;}
.my-progress-text b{color:var(--gold-light);}
.my-progress-card .bar-track{background:rgba(255,255,255,.18);}
.my-progress-card .bar-fill{background:var(--gold-light);}

.qa-quick-list{max-height:420px;overflow-y:auto;}
.qa-quick-item{padding:12px 0;border-bottom:1px solid var(--border);}
.qa-quick-item:last-child{border-bottom:none;}
.qa-quick-q{color:var(--question);font-weight:600;font-size:.88rem;line-height:1.5;margin-bottom:6px;}
.qa-answer-box{
  background:var(--paper);border:1.3px solid var(--border);border-radius:8px;padding:8px 10px;
  color:var(--answer);font-size:.85rem;line-height:1.5;white-space:pre-wrap;margin-bottom:6px;
}
.qa-quick-meta{font-size:.72rem;color:var(--muted);}

/* ---------- Fee management ---------- */
.fee-row{display:flex;align-items:center;gap:6px;padding:5px 0;border-bottom:1px solid var(--border);}
.fee-row:last-child{border-bottom:none;}
.fee-row-name{
  flex-shrink:0;display:flex;align-items:center;gap:5px;background:none;border:none;
  color:var(--ink);font-weight:600;font-size:.72rem;width:28%;text-align:left;
}
.fee-row-name .avatar{width:20px;height:20px;border-width:1px;}
.fee-row-name span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.fee-months-scroll{
  flex:1;display:flex;gap:4px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:1px;
}
.fee-month-mini{
  flex-shrink:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-width:38px;border-radius:5px;padding:2px 6px;line-height:1.15;
}
.fee-month-mini-label{font-size:.56rem;font-weight:700;opacity:.85;}
.fee-month-mini-amt{font-size:.64rem;font-weight:700;}
.fee-month-mini.paid{background:#E4F3E9;color:var(--success);}
.fee-month-mini.unpaid{background:#FDEAE8;color:var(--danger);}
.fee-modal-grid{display:flex;gap:8px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:6px;margin-bottom:4px;}
.fee-month-card{
  flex-shrink:0;min-width:64px;border-radius:10px;border:1.5px solid var(--border);padding:8px 10px;text-align:center;background:var(--paper);
}
.fee-month-name{font-size:.7rem;font-weight:700;color:var(--ink);white-space:nowrap;}
.fee-month-amount{font-size:.78rem;font-weight:700;margin-top:2px;}
.fee-month-card.fee-paid{background:#E4F3E9;border-color:#C8E6D4;}
.fee-month-card.fee-paid .fee-month-amount{color:var(--success);}
.fee-month-card.fee-partial{background:#FDEAE8;border-color:#F5CFCB;}
.fee-month-card.fee-partial .fee-month-amount{color:var(--danger);}
.fee-month-card.fee-due{background:#FDEAE8;border-color:#F5CFCB;}
.fee-month-card.fee-due .fee-month-amount{color:var(--danger);}
.fee-payments-list{display:flex;flex-direction:column;gap:6px;max-height:220px;overflow-y:auto;}
.fee-payment-row{
  display:grid;grid-template-columns:1fr auto 1fr auto;gap:8px;align-items:center;
  font-size:.8rem;padding:6px 0;border-bottom:1px solid var(--border);
}
.fee-payment-delete{background:none;border:none;color:var(--danger);font-size:.7rem;}

/* ---------- Bar chart ---------- */
.barchart{display:flex;flex-direction:column;gap:10px;}
.bar-row{display:grid;grid-template-columns:84px 1fr 30px;align-items:center;gap:8px;}
.bar-label{font-size:.78rem;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.bar-track{background:var(--paper-2);border-radius:20px;height:14px;overflow:hidden;}
.bar-fill{height:100%;background:linear-gradient(90deg,var(--ink),var(--ink-2));border-radius:20px;}
.bar-value{font-size:.75rem;color:var(--muted);text-align:right;}

.vbar-chart{display:flex;align-items:flex-end;gap:4px;height:200px;padding-top:16px;}
.vbar-col{display:flex;flex-direction:column;align-items:center;flex:1 1 0;min-width:0;height:100%;}
.vbar-count{font-size:.62rem;font-weight:700;color:var(--ink);margin-bottom:3px;}
.vbar-track{flex:1;width:60%;min-width:6px;display:flex;align-items:flex-end;background:var(--paper-2);border-radius:0;overflow:hidden;}
.vbar-fill{width:100%;background:var(--gold);border-radius:0;min-height:3px;}
.vbar-name{
  height:40px;margin-top:2px;width:100%;position:relative;
}
.vbar-name::before{
  content:'';position:absolute;top:0;left:50%;width:1px;height:6px;background:var(--border);
}
.vbar-name span{
  position:absolute;top:6px;right:50%;
  font-size:.62rem;color:var(--ink);font-weight:600;white-space:nowrap;
  transform:rotate(-40deg);transform-origin:top right;display:inline-block;
}

/* ---------- Activity feed ---------- */
.activity-scroll{max-height:260px;overflow-y:auto;padding-right:2px;}
.fee-mini-widget{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px;}
.fee-mini-chip{font-size:.72rem;font-weight:700;padding:5px 10px;border-radius:10px;}
.my-due-fee-notice{
  background:#FDEAE8;color:var(--danger);border:1px solid #f3c9c5;border-radius:8px;
  padding:6px 10px;font-size:.72rem;font-weight:600;margin-bottom:8px;display:flex;align-items:center;gap:6px;
}
.fee-mini-chip.paid{background:#E4F3E9;color:var(--success);}
.fee-mini-chip.unpaid{background:#FDEAE8;color:var(--danger);}
.format-toolbar{
  margin-top:6px;padding-top:6px;border-top:1px dashed var(--border);
  display:flex;align-items:center;gap:6px;overflow-x:auto;-webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.format-toolbar::-webkit-scrollbar{display:none;}
.format-btn{
  flex-shrink:0;width:28px;height:28px;border-radius:6px;border:1px solid var(--border);background:var(--paper);
  color:var(--ink);font-size:.78rem;display:flex;align-items:center;justify-content:center;
}
.format-swatch{
  flex-shrink:0;width:24px;height:24px;border-radius:50%;border:1.5px solid var(--border);padding:0;cursor:pointer;
}
.format-swatch:active{transform:scale(.9);}
.progress-row{display:flex;align-items:center;gap:8px;padding:6px 0;border-bottom:1px solid var(--border);}

/* ---------- Daily Task tab ---------- */
.dt-student-list{max-height:220px;overflow-y:auto;border:1px solid var(--border);border-radius:8px;padding:8px;margin-top:8px;display:flex;flex-wrap:wrap;gap:8px;align-content:flex-start;}
.dt-student-card{
  display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:20px;
  border:1.5px solid var(--border);background:var(--paper);color:var(--muted);font-size:.78rem;font-weight:600;
}
.dt-student-card.selected{background:var(--gold-light);border-color:var(--gold);color:var(--ink);}
#dt-select-all{margin-top:8px;}
.dt-time-row{display:flex;align-items:center;gap:6px;}
.dt-time-row select{border:1px solid var(--border);border-radius:6px;padding:4px;background:var(--paper);color:var(--ink);}
.dt-task-row{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid var(--border);}
.dt-task-row:last-child{border-bottom:none;}
.dt-task-row i{color:var(--gold);width:18px;text-align:center;}

/* ---------- ডেইলি টাস্ক: ডায়নামিক এডিটেবল কুইজ কার্ড ---------- */
.quiz-preview-card{
  position:relative;background:var(--card);border-radius:var(--radius);padding:14px 14px 12px 14px;
  margin-bottom:12px;box-shadow:var(--shadow);border:1px solid var(--border);
}
.quiz-preview-remove{
  position:absolute;top:8px;right:8px;width:22px;height:22px;border-radius:50%;border:none;
  background:var(--paper-2);color:var(--danger);font-size:.7rem;display:flex;align-items:center;justify-content:center;
}
.quiz-preview-num{font-weight:700;color:var(--gold);font-size:.76rem;margin-bottom:6px;}
.quiz-preview-question{
  width:100%;border:1.5px solid var(--border);border-radius:10px;padding:8px 10px;font-size:.88rem;
  font-weight:600;resize:vertical;background:var(--paper);margin-bottom:10px;color:var(--ink);font-family:inherit;
}
.quiz-preview-options{display:flex;flex-direction:column;gap:6px;margin-bottom:8px;}
.qa-preview-question{
  width:100%;border:1.5px solid var(--border);border-radius:10px;padding:8px 10px;font-size:.9rem;
  font-weight:700;resize:vertical;background:var(--paper);margin-bottom:8px;color:var(--question);font-family:inherit;
}
.qa-preview-answer{
  width:100%;border:1.5px solid var(--border);border-radius:10px;padding:8px 10px;font-size:.86rem;
  resize:vertical;background:var(--paper);margin-bottom:8px;color:var(--answer);font-family:inherit;
}
.qa-preview-img-thumb{width:100%;max-height:160px;object-fit:contain;border-radius:8px;border:1px solid var(--border);margin-top:4px;background:#fff;}
.quiz-preview-option-row{display:flex;align-items:center;gap:8px;}
.quiz-preview-option-row input[type="radio"]{flex-shrink:0;width:16px;height:16px;accent-color:var(--success);}
.quiz-preview-option-row input[type="text"]{
  flex:1;border:1px solid var(--border);border-radius:8px;padding:6px 9px;font-size:.82rem;
  background:var(--paper);color:var(--ink);font-family:inherit;
}
.quiz-preview-option-row.correct input[type="text"]{border-color:var(--success);background:#E4F3E9;}
.quiz-preview-extra-row{display:flex;gap:8px;}
.quiz-preview-extra-row input{
  flex:1;min-width:0;border:1px solid var(--border);border-radius:8px;padding:6px 9px;font-size:.78rem;
  background:var(--paper);color:var(--ink);font-family:inherit;
}
.dt-task-info{flex:1;min-width:0;}
.dt-task-title{font-size:.85rem;font-weight:600;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.progress-row:last-child{border-bottom:none;}
.progress-name{flex:1;font-size:.78rem;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.progress-badge{font-size:.68rem;font-weight:700;padding:3px 8px;border-radius:10px;white-space:nowrap;}
.progress-badge.answered{background:#E4F3E9;color:var(--success);}
.progress-badge.pending{background:#FFF3CD;color:#8A6D00;}
.activity-item{display:flex;gap:8px;padding:7px 0;border-bottom:1px solid var(--border);}
.activity-item:last-child{border-bottom:none;}
.activity-dot{width:7px;height:7px;border-radius:50%;background:var(--gold);margin-top:5px;flex-shrink:0;}
.activity-text{font-size:.78rem;line-height:1.4;}
.activity-answer-preview{font-size:.73rem;color:var(--answer);margin:2px 0 3px;line-height:1.35;}
.activity-time{font-size:.68rem;color:var(--muted);}

/* ---------- Forms / admin ---------- */
.field{margin-bottom:12px;}
.field label{display:block;font-size:.8rem;color:var(--muted);margin-bottom:5px;}
.field input,.field select,.field textarea{
  width:100%;padding:10px 12px;border-radius:9px;border:1.5px solid var(--border);font-size:.92rem;background:var(--paper);
}
.field textarea{min-height:70px;resize:vertical;}
.row-2{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.subtabs{display:flex;gap:8px;margin-bottom:14px;overflow-x:auto;}
.subtab-btn{
  flex-shrink:0;padding:8px 14px;border-radius:20px;border:1.5px solid var(--border);background:var(--card);
  color:var(--muted);font-size:.82rem;font-weight:600;
}
.subtab-btn.active{background:var(--ink);color:#fff;border-color:var(--ink);}

textarea.tsv-input{
  width:100%;min-height:150px;font-family:monospace;font-size:.82rem;padding:12px;
  border-radius:10px;border:1.5px solid var(--border);background:var(--paper);
}
table.preview-table{width:100%;border-collapse:collapse;font-size:.78rem;margin-top:10px;}
table.preview-table th,table.preview-table td{border:1px solid var(--border);padding:6px 8px;text-align:right;vertical-align:top;}
table.preview-table th{background:var(--paper-2);}
table.preview-table select{width:100%;font-size:.75rem;padding:4px;}

.apply-all-row{display:flex;gap:8px;align-items:center;margin-bottom:10px;}
.apply-all-row select{flex:1;padding:8px 10px;border-radius:9px;border:1.5px solid var(--border);background:var(--paper);font-size:.85rem;}
.apply-all-row:last-child{margin-bottom:0;}

.bulk-q-card{
  position:relative;background:var(--card);border-radius:var(--radius);padding:14px;margin-bottom:12px;
  box-shadow:var(--shadow);border:1px solid var(--border);
}
.bulk-remove-btn{
  position:absolute;top:8px;left:8px;width:22px;height:22px;border-radius:50%;border:none;
  background:var(--paper-2);color:var(--muted);font-size:.7rem;display:flex;align-items:center;justify-content:center;
}
.bulk-assign-row{
  display:flex;align-items:center;gap:6px;margin:0 0 8px 28px;flex-wrap:wrap;
}
.bulk-assign-select{
  border:1px solid var(--border);border-radius:8px;padding:3px 6px;font-size:.74rem;background:var(--paper);color:var(--ink);
}
.bulk-q-text{
  width:100%;border:1.5px solid var(--border);border-radius:10px;padding:10px 12px;font-size:.92rem;
  color:var(--question);font-weight:600;resize:vertical;background:var(--paper);margin-bottom:10px;
}
.bulk-chip-row{display:flex;gap:8px;flex-wrap:wrap;}
.bulk-chip{
  display:flex;flex-direction:column;gap:2px;background:var(--paper-2);border-radius:10px;padding:6px 8px;
  flex:1;min-width:78px;border-left:3px solid var(--border);
}
.bulk-chip span{font-size:.62rem;text-transform:uppercase;letter-spacing:.4px;color:var(--muted);font-weight:700;}
.bulk-chip input,.bulk-chip select{
  border:none;background:transparent;font-size:.82rem;color:var(--ink);padding:0;font-family:inherit;
}
.bulk-chip input:focus,.bulk-chip select:focus{outline:none;}
.bulk-chip--marks{border-left-color:var(--gold);}
.bulk-chip--type{border-left-color:var(--muted);}
.bulk-chip--subject{border-left-color:var(--ink);}
.bulk-chip--chapter{border-left-color:#7C8FB0;}
.bulk-chip--source{border-left-color:var(--success);}

.student-row{display:flex;align-items:center;gap:8px;padding:10px 0;border-bottom:1px solid var(--border);flex-wrap:wrap;}
.student-row:last-child{border-bottom:none;}
.student-info{flex:1;min-width:90px;}
.student-name{font-weight:600;font-size:.9rem;}
.student-mobile{font-size:.75rem;color:var(--muted);}
.status-pill{font-size:.68rem;padding:3px 10px;border-radius:10px;border:none;font-weight:600;cursor:pointer;}
.status-pill:active{transform:scale(.94);}
.status-active{background:#E4F3E9;color:var(--success);}
.status-blocked{background:#FDEAE8;color:var(--danger);}

.empty-state{text-align:center;padding:40px 16px;color:var(--muted);}
.empty-state svg{margin-bottom:10px;opacity:.6;}

/* ---------- Modal ---------- */
.modal-overlay{
  position:fixed;inset:0;background:rgba(10,14,26,.55);display:flex;align-items:flex-end;justify-content:center;
  z-index:100;
}
.modal-box{
  background:var(--card);border-radius:18px 18px 0 0;padding:20px;width:100%;max-width:480px;max-height:85vh;overflow-y:auto;
  animation:slideup .2s ease;
}
@media (min-width:560px){
  .modal-overlay{align-items:center;}
  .modal-box{border-radius:18px;}
}
@keyframes slideup{from{transform:translateY(30px);opacity:0;}to{transform:translateY(0);opacity:1;}}
.modal-title{font-size:1.05rem;margin:0 0 14px;}
.modal-actions{display:flex;gap:10px;margin-top:16px;}

/* ---------- Toast ---------- */
.toast{
  position:fixed;bottom:80px;left:50%;transform:translateX(-50%);
  background:var(--ink);color:#fff;padding:11px 20px;border-radius:24px;font-size:.85rem;
  box-shadow:0 6px 20px rgba(0,0,0,.25);z-index:200;max-width:90%;text-align:center;
}
.toast.error{background:var(--danger);}
.toast.success{background:var(--success);}

/* ---------- Loading: spinner & skeleton ---------- */
.spinner{
  width:34px;height:34px;border:3px solid var(--border);border-top-color:var(--gold);
  border-radius:50%;animation:spin .7s linear infinite;margin:0 auto;
}
@keyframes spin{to{transform:rotate(360deg);}}

#boot-loader{
  position:fixed;inset:0;z-index:500;background:var(--paper);
  display:flex;align-items:center;justify-content:center;
}
#top-loading-bar{
  position:fixed;top:0;left:0;right:0;z-index:400;height:3px;background:var(--gold);
  transform-origin:left;animation:top-loading-bar-pulse 1.1s ease-in-out infinite;
}
@keyframes top-loading-bar-pulse{
  0%{transform:scaleX(.05);opacity:.5;}
  50%{transform:scaleX(.6);opacity:1;}
  100%{transform:scaleX(1);opacity:0;}
}

.skeleton-card{pointer-events:none;}
.skeleton{
  background:linear-gradient(90deg, var(--paper-2) 25%, #e3ddd0 37%, var(--paper-2) 63%);
  background-size:400% 100%;animation:skeleton-loading 1.4s ease infinite;
}
.skeleton-line{border-radius:6px;}
@keyframes skeleton-loading{0%{background-position:100% 50%;}100%{background-position:0 50%;}}

/* ---------- Content / card entrance animation ---------- */
.content.fade-in{animation:contentFade .28s ease;}
@keyframes contentFade{from{opacity:0;transform:translateY(4px);}to{opacity:1;transform:translateY(0);}}
.card{animation:cardIn .3s ease both;}
@keyframes cardIn{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}

/* ---------- Date badges on question cards ---------- */
.date-meta{
  display:flex;flex-wrap:wrap;gap:12px;font-size:.72rem;color:var(--muted);
  margin:-2px 0 10px;
}

/* ---------- Filter bar (student QnA) ---------- */
.filter-bar{padding:12px;}
.filter-bar .eyebrow{font-size:.68rem;}
.filter-reset{background:none;border:none;color:var(--muted);font-size:.72rem;text-decoration:underline;padding:0;}
.chip-row{display:flex;gap:6px;overflow-x:auto;padding:2px 0 8px;-webkit-overflow-scrolling:touch;scrollbar-width:none;}
.chip-row::-webkit-scrollbar{display:none;}
.chip{
  flex-shrink:0;padding:5px 12px;border-radius:14px;border:1.3px solid var(--border);
  background:var(--paper);color:var(--muted);font-size:.72rem;font-weight:600;white-space:nowrap;
}
.chip.active{background:var(--ink);color:#fff;border-color:var(--ink);}
.filter-select-row{display:flex;gap:6px;flex-wrap:wrap;}
.filter-select-row select{
  flex:1;min-width:100px;padding:6px 8px;border-radius:8px;border:1.3px solid var(--border);
  background:var(--paper);font-size:.75rem;color:var(--ink);
}

/* ---------- Print/প্রিভিউ কন্টেন্ট: একক-কলাম টেবিল-ভিত্তিক ডকুমেন্ট, নেটিভ ব্রাউজার পেজিনেশন ----------
   আগে প্রতিটি "পেজ" আলাদা div হিসেবে মেপে display:flex দিয়ে সাজানো হতো। Chrome/Chromium
   flex কন্টেইনারের সরাসরি সন্তানদের উপর page-break-after/break-after সম্মান করে না, তাই
   প্রিন্ট/PDF-এ যতই পেজ-ডিভ থাকুক না কেন সব এক পেজে জোর করে বসে যেত। এখন আর কোনো
   flex/measurement নেই — একটামাত্র <table> ব্যবহার করা হয় এবং ব্রাউজারের নিজস্ব
   টেবিল-রো পেজিনেশন দিয়ে প্রয়োজনমতো যতগুলো পেজ লাগে ততগুলোই তৈরি হয়। স্ক্রিনে
   (প্রিভিউ) এই একই ডকুমেন্ট শুধু একটামাত্র স্বাভাবিক স্ক্রল-করা ব্লক হিসেবে দেখা যায়,
   কোনো পেজ-ডিভাইডার ছাড়াই — বিভাজনটা কেবল @media print-এর break নিয়মেই ঘটে। */
#print-area{display:none;}
.print-doc{
  background:#fff;font-family:'Noto Serif Bengali','Hind Siliguri',serif;color:#111;
  width:100%;max-width:100%;box-sizing:border-box;padding:16px;margin:0 auto;
  box-shadow:0 2px 10px rgba(0,0,0,.15);border-radius:4px;
}
.print-header{text-align:center;padding-bottom:8px;border-bottom:3px double var(--ink);margin-bottom:10px;}
.print-title{
  font-family:'Noto Serif Bengali',serif;color:var(--ink);margin:0 0 8px;font-size:1.9rem;
  letter-spacing:2px;font-weight:700;text-transform:uppercase;
}
.print-info-row{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 18px;font-size:.85rem;color:#222;}
.print-table{width:100%;border-collapse:collapse;table-layout:fixed;}
.print-table td{border:none;padding:0;vertical-align:top;}
.print-qa-row td.print-col-cell{padding:0 10px 16px;}
.print-qa-row td.print-col-cell:first-child{padding-left:0;border-right:1px solid #ccc;}
.print-qa-row td.print-col-cell:last-child{padding-right:0;}
.print-qa-row{break-inside:avoid;page-break-inside:avoid;}
.print-q-label{color:#C0392B;font-weight:700;}
.print-q-text{color:#C0392B;font-weight:700;margin:4px 0;}
.print-a-label{color:#1A3A6B;font-weight:700;}
.print-a-text{color:#111;white-space:pre-wrap;margin:4px 0;}
.print-meta-line{color:#555;font-size:.72rem;margin:6px 0 0;}
.print-float-img{float:right;max-width:32%;max-height:4.5em;width:auto;height:auto;margin:0 0 8px 10px;border-radius:4px;object-fit:contain;}
.print-clearfix{clear:both;}
.print-drawing-wrap{text-align:center;margin:10px 0;}
.print-drawing-img{width:82%;max-width:100%;border-radius:4px;}
.preview-scroll{max-height:65vh;overflow:auto;padding:12px 4px;background:#DADADA;border-radius:10px;}
.preview-scroll .print-doc{margin:0 auto;}

@media print{
  @page{size:A4 portrait;margin:9mm;}
  html,body{
    background:#fff !important;height:auto !important;min-height:0 !important;max-height:none !important;
    overflow:visible !important;position:static !important;transform:none !important;
  }
  #app{display:none !important;}
  .no-print{display:none !important;}

  #print-area{display:none;}
  body.printing-mode #print-area{
    display:block !important;position:static !important;overflow:visible !important;
    max-height:none !important;height:auto !important;
  }
  body.printing-mode .print-doc{
    width:auto;max-width:none;padding:0;box-shadow:none !important;border-radius:0;margin:0;
  }
  body.printing-mode .print-qa-row{break-inside:avoid;page-break-inside:avoid;}

  #pdf-preview-overlay{display:none;}
  body.printing-overlay-mode #pdf-preview-overlay{
    display:block !important;position:static !important;inset:auto !important;height:auto !important;background:#fff !important;
  }
  body.printing-overlay-mode .pdf-preview-scroll{
    overflow:visible !important;max-height:none !important;padding:0 !important;max-width:none !important;margin:0 !important;
  }
  body.printing-overlay-mode .print-doc{
    width:auto;max-width:none;padding:0;box-shadow:none !important;border-radius:0;margin:0;
  }
  body.printing-overlay-mode .print-qa-row{break-inside:avoid;page-break-inside:avoid;}
  body.printing-overlay-mode .pq-doc{
    width:auto;max-width:none;padding:0;box-shadow:none !important;border-radius:0;margin:0;
  }
  body.printing-overlay-mode .pq-qa-card{break-inside:avoid;page-break-inside:avoid;}

  .diff-view-table td,.diff-view-table th{border:none;padding:2px 8px 2px 0;background:none;}

  .topbar,.bottomnav,.q-actions,#modal-root{display:none !important;}
  #pdf-gen-overlay{display:none !important;}
}

/* ---------- PDF ছবি-প্রিলোড ওভারলে (v16): প্রগ্রেস বার + ব্যর্থ ছবি রিট্রাই ---------- */
#print-loader-overlay{
  position:fixed;inset:0;z-index:1000;background:rgba(30,42,74,.92);
  display:flex;align-items:center;justify-content:center;padding:20px;
}
.print-loader-box{
  width:100%;max-width:380px;background:var(--card);border-radius:16px;
  padding:22px 20px;box-shadow:0 12px 30px rgba(0,0,0,.3);text-align:center;
}
.print-loader-title{font-weight:700;color:var(--ink);font-size:1rem;margin-bottom:6px;}
.print-loader-sub{color:var(--muted);font-size:.82rem;margin-bottom:12px;}
.print-loader-bar-track{
  width:100%;height:8px;border-radius:6px;background:var(--paper-2);overflow:hidden;
}
.print-loader-bar-fill{
  height:100%;background:linear-gradient(90deg,var(--gold),var(--gold-light));
  border-radius:6px;transition:width .25s ease;
}
.print-loader-fail-note{
  margin-top:16px;font-size:.78rem;color:var(--danger);text-align:right;line-height:1.6;
}
.print-loader-fail-list{
  max-height:180px;overflow-y:auto;margin-top:10px;text-align:right;
}
.print-loader-fail-item{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:6px 4px;border-bottom:1px solid var(--border);font-size:.8rem;
}
.print-loader-fail-url{color:var(--ink);}
.print-loader-fail-actions{
  display:flex;flex-direction:column;gap:8px;margin-top:14px;
}

/* ---------- Full-screen PDF preview overlay ---------- */
#pdf-preview-overlay{
  position:fixed;inset:0;z-index:200;background:var(--paper);
  display:flex;flex-direction:column;
}
.pdf-preview-topbar{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 16px;background:var(--card);border-bottom:1px solid var(--border);flex-shrink:0;
  font-weight:700;font-size:.9rem;
}
.pdf-preview-topbar-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.pdf-preview-close{
  width:32px;height:32px;border-radius:50%;border:1px solid var(--border);background:var(--paper);
  color:var(--ink);display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.pdf-preview-scroll{flex:1;overflow:auto;padding:20px 16px 24px;width:100%;}
.pdf-preview-scroll .print-doc{margin:0 auto;}

/* ---------- Admin PDF: হুবহু "TSV to PDF Question Paper Generator" ডিজাইন (pq- prefix) ----------
   এডমিন প্যানেলের "PDF" বাটনে ক্লিক করলে এই ডিজাইনেই কাগজ তৈরি হয় — লোগো-সহ হেডার কার্ড,
   ওয়াটারমার্ক, ২-কলাম CSS column-count লেআউট, এবং মার্ক/উৎস/ধরন/অধ্যায়ের জন্য ছোট ব্যাজ। */
.pq-doc{
  position:relative;overflow:hidden;background:#fff;font-family:'Noto Serif Bengali','Hind Siliguri',serif;
  color:#000;width:100%;max-width:760px;box-sizing:border-box;padding:16px;margin:0 auto;
  box-shadow:0 2px 10px rgba(0,0,0,.15);border-radius:8px;
}
.pq-watermark{
  position:absolute;top:40%;left:-15%;width:130%;text-align:center;transform:rotate(-30deg);
  font-size:48pt;font-weight:900;color:rgba(0,0,0,.04);pointer-events:none;z-index:0;user-select:none;white-space:nowrap;
}
.pq-header-card{
  position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;
  border:1.5pt solid #1e3a8a;border-radius:8px;padding:10px 14px;margin-bottom:14px;background:#f8fafc;
  -webkit-print-color-adjust:exact;print-color-adjust:exact;
}
.pq-header-logo-left,.pq-header-logo-right{width:56px;height:56px;object-fit:contain;flex-shrink:0;}
.pq-header-center{flex-grow:1;text-align:center;padding:0 10px;}
.pq-academy-name{font-size:20pt;font-weight:900;letter-spacing:.8px;text-transform:uppercase;color:#1e3a8a;margin:0;line-height:1.1;}
.pq-badge-container{display:flex;justify-content:center;gap:6px;margin:5px 0;flex-wrap:wrap;}
.pq-badge{
  background:#e0f2fe;border:1px solid #bae6fd;padding:3px 9px;border-radius:12px;font-size:9pt;font-weight:bold;color:#0369a1;
  -webkit-print-color-adjust:exact;print-color-adjust:exact;
}
.pq-header-bottom-strip{
  display:flex;justify-content:space-around;font-size:8.5pt;font-weight:bold;color:#334155;
  margin-top:6px;border-top:1px dashed #cbd5e1;padding-top:5px;flex-wrap:wrap;gap:4px;
}
.pq-column-container{position:relative;z-index:1;column-count:1;}
.pq-qa-card{
  break-inside:avoid;page-break-inside:avoid;margin-bottom:14px;padding-bottom:12px;
  border-bottom:1pt solid #e2e8f0;background-color:transparent !important;word-wrap:break-word;overflow-wrap:break-word;
}
.pq-admin-img{float:right;max-height:100px;width:auto;max-width:140px;margin-left:10px;margin-bottom:6px;background-color:#fff !important;border-radius:4px;object-fit:contain;}
.pq-question{font-weight:bold;color:#dc2626 !important;font-size:11pt;line-height:1.55;margin-bottom:5px;}
.pq-badge-card{
  display:inline-block;font-size:8pt;font-weight:bold;padding:2px 6px;border-radius:4px;margin-left:3px;
  vertical-align:middle;white-space:nowrap;line-height:1.3;-webkit-print-color-adjust:exact;print-color-adjust:exact;
}
.pq-badge-marks{color:#1e3a8a !important;border:1px solid #93c5fd;background-color:#eff6ff;}
.pq-badge-source{color:#334155 !important;border:1px solid #cbd5e1;background-color:#f8fafc;}
.pq-badge-type{color:#065f46 !important;border:1px solid #a7f3d0;background-color:#ecfdf5;}
.pq-badge-chapter{color:#92400e !important;border:1px solid #fde68a;background-color:#fffbeb;}
.pq-question-img{display:block;width:auto;max-width:280px;max-height:220px;height:auto;margin:8px auto;object-fit:contain;}
.pq-answer{font-size:10.5pt;color:#000;text-align:justify;line-height:1.55;}
.pq-answer-prefix{font-weight:bold;color:#0284c7 !important;}
.pq-doc .diff-view-table{width:100%;border-collapse:collapse;margin:8px 0;font-size:9.5pt;background:#fff;}
.pq-doc .diff-view-table th,.pq-doc .diff-view-table td{border:1px solid #cbd5e1;padding:5px 7px;text-align:left;}
.pq-doc .diff-view-table th{background-color:#f1f5f9;font-weight:bold;color:#0f172a;-webkit-print-color-adjust:exact;print-color-adjust:exact;}
.pq-answer-img{display:block;width:auto;max-width:260px;max-height:200px;height:auto;margin:8px auto;object-fit:contain;}
.pq-clearfix::after{content:"";clear:both;display:table;}
.pdf-preview-scroll .pq-doc{margin:0 auto;}

/* ---------- PDF এক্সপোর্ট: প্রতিটি পেজ আলাদা করে অফ-স্ক্রিনে রেন্ডার + ক্যাপচার করা হয় ----------
   CSS column-count-এর বদলে স্পষ্ট flex-ভিত্তিক দুটো কলাম ব্যবহার করা হচ্ছে, যাতে প্রতিটি পেজের
   ডান কলাম কখনো ফাঁকা না থাকে (CSS মাল্টি-কলাম পুরো ডকুমেন্ট জুড়ে ব্যালেন্স করে বলে html2canvas-এর
   পেজ-স্লাইসিং-এ ভেঙে যেত)। এই স্টাইলগুলো শুধু PDF ক্যাপচারের সময় ব্যবহৃত অফ-স্ক্রিন কন্টেইনারে
   প্রযোজ্য — স্ক্রিনে দেখা প্রিভিউ এর দ্বারা প্রভাবিত হয় না। */
.pq-offscreen-render{position:fixed;left:-9999px;top:0;width:780px;background:#fff;}
.pq-page{width:780px;background:#fff;padding:10px;box-sizing:border-box;position:relative;overflow:hidden;font-family:'Noto Serif Bengali','Hind Siliguri',serif;}
.pq-page-cols{display:flex;gap:14px;align-items:flex-start;position:relative;z-index:1;}
.pq-page-col{flex:1;min-width:0;}
.pq-page .pq-header-card{padding:8px 12px;margin-bottom:10px;}
.pq-page .pq-header-logo-left,.pq-page .pq-header-logo-right{width:50px;height:50px;}
.pq-page .pq-academy-name{font-size:17pt;}
.pq-page .pq-badge{font-size:7.5pt;padding:2px 7px;}
.pq-page .pq-header-bottom-strip{font-size:7.5pt;margin-top:4px;padding-top:4px;}
.pq-page .pq-qa-card{margin-bottom:8px;padding-bottom:6px;}
.pq-page .pq-question{font-size:9.5pt;line-height:1.45;margin-bottom:3px;}
.pq-page .pq-answer{font-size:9pt;line-height:1.4;text-align:justify;}
.pq-page .pq-badge-card{font-size:7pt;padding:1px 4px;margin-left:2px;}
.pq-page .pq-admin-img{max-height:70px;max-width:95px;margin-left:8px;margin-bottom:4px;}
.pq-page .pq-question-img{max-width:150px;max-height:130px;margin:4px auto;}
.pq-page .pq-answer-img{max-width:140px;max-height:120px;margin:4px auto;}
.pq-page .diff-view-table{font-size:8pt;}
.pq-page .pq-watermark{font-size:36pt;}
@media (max-width:600px){
  .pq-doc{padding:10px;border-radius:0;}
  .pq-header-card{flex-wrap:wrap;justify-content:center;text-align:center;}
  .pq-header-logo-left,.pq-header-logo-right{width:42px;height:42px;}
  .pq-academy-name{font-size:15pt;}
  .pq-header-bottom-strip{justify-content:center;}
  .pq-admin-img{float:none;display:block;margin:0 auto 8px auto;max-width:160px;}
}

/* ---------- টপবার PDF-জেনারেটর শর্টকাট: ফুলস্ক্রিন iframe মোডাল (শুধু এডমিন) ---------- */
#pdf-gen-overlay{
  position:fixed;inset:0;z-index:250;background:#fff;display:flex;flex-direction:column;
}
.pdf-gen-topbar{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 14px;background:var(--card);border-bottom:1px solid var(--border);flex-shrink:0;
  font-weight:700;font-size:.85rem;color:var(--ink);
}
.pdf-gen-iframe{flex:1;width:100%;border:none;background:#fff;}

/* PDF-প্রিন্ট আইকন বাটন: মডেল/ওভারলে বন্ধ (close) আইকনের ঠিক বাঁদিকে বসে */
.pdf-preview-icon-btn{
  width:32px;height:32px;border-radius:50%;border:none;background:var(--gold);
  color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:.9rem;
}
.pdf-preview-icon-btn:disabled{opacity:.45;}
.pdf-preview-icon-btn-ghost{
  background:var(--paper);border:1px solid var(--border);color:var(--ink);
}
.preview-modal-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:6px;}
.preview-modal-title{margin:0;font-size:1rem;}
.preview-modal-head-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;}

/* ---------- Utility ---------- */
.muted{color:var(--muted);}
.flex-between{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.mt-0{margin-top:0;}
.center{text-align:center;}
.hidden{display:none !important;}


@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important;transition-duration:0.001ms !important;}
}



/* ==================================================================
   স্টুডেন্ট ডেইলি টাস্ক: তালিকা কার্ড + ফুলস্ক্রিন কুইজ মোডাল
   ================================================================== */
.task-list-card{margin-bottom:12px;}
.task-list-top{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.task-list-icon{
  width:40px;height:40px;border-radius:10px;background:var(--gold-light);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0;
}
.task-list-info{flex:1;min-width:0;}
.task-list-title{font-weight:700;font-size:.92rem;color:var(--ink);}
.task-list-meta{font-size:.74rem;color:var(--muted);margin-top:2px;}
.task-list-actions{display:flex;gap:8px;flex-wrap:wrap;}

/* ---------- ফুলস্ক্রিন কুইজ মোডাল ---------- */
.tq-overlay{
  position:fixed;inset:0;z-index:400;background:var(--paper);display:flex;flex-direction:column;
  font-family:'Noto Serif Bengali','Hind Siliguri',serif;
}
.tq-header{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--ink);color:#fff;flex-shrink:0;}
.tq-icon-btn{
  width:34px;height:34px;border-radius:50%;border:none;background:rgba(255,255,255,.12);color:#fff;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:.95rem;
}
.tq-title-wrap{flex:1;min-width:0;}
.tq-title{font-weight:700;font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.tq-attempt-tag{font-size:.68rem;color:var(--gold-light);margin-top:1px;}
.tq-testmode-tag{
  display:inline-flex;align-items:center;gap:4px;font-size:.66rem;font-weight:700;color:#fff;
  background:#e67e22;padding:2px 8px;border-radius:8px;margin-top:2px;
}
.tq-badges{display:flex;gap:6px;flex-shrink:0;}
.tq-badge{font-size:.76rem;font-weight:700;padding:3px 8px;border-radius:8px;}
.tq-badge-wrong{background:rgba(242,139,130,.18);color:#f28b82;}
.tq-badge-correct{background:rgba(129,201,149,.18);color:#81c995;}
.tq-progress-wrap{display:flex;align-items:center;gap:10px;padding:8px 14px;flex-shrink:0;}
.tq-progress-bar{flex:1;height:6px;background:var(--paper-2);border-radius:10px;overflow:hidden;}
.tq-progress-fill{height:100%;background:var(--gold);width:0;border-radius:10px;transition:width .3s ease;}
.tq-qcount{font-size:.76rem;color:var(--muted);flex-shrink:0;}
.tq-scroll{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:14px 16px 90px;}
.tq-question-text{font-size:1.05rem;line-height:1.6;font-weight:600;color:var(--ink);margin-bottom:16px;}
.tq-qimage{width:100%;max-height:220px;object-fit:contain;border-radius:10px;border:1px solid var(--border);margin-bottom:14px;background:#fff;}
.tq-options-list{display:flex;flex-direction:column;gap:10px;}
.tq-option-card{
  background:var(--card);border:1.5px solid var(--border);border-radius:12px;padding:12px 14px;cursor:pointer;transition:.15s;
}
.tq-option-card.tq-disabled{cursor:default;}
.tq-option-row{display:flex;align-items:flex-start;gap:10px;}
.tq-option-label{
  width:26px;height:26px;border-radius:50%;background:var(--paper-2);color:var(--muted);font-weight:700;font-size:.8rem;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.tq-option-text{flex:1;font-size:.9rem;line-height:1.5;color:var(--ink);}
.tq-option-card.correct{border-color:#81c995;background:rgba(129,201,149,.08);}
.tq-option-card.correct .tq-option-label{background:#81c995;color:#04310f;}
.tq-option-card.wrong{border-color:#f28b82;background:rgba(242,139,130,.08);}
.tq-option-card.wrong .tq-option-label{background:#f28b82;color:#450a06;}
.tq-explain-fab{
  position:fixed;bottom:76px;right:16px;z-index:401;background:var(--card);border:1.5px solid var(--gold);color:var(--gold);
  padding:9px 16px;border-radius:30px;font-size:.82rem;font-weight:700;display:flex;align-items:center;gap:7px;
  box-shadow:0 4px 12px rgba(0,0,0,.15);
}
.tq-footer{
  flex-shrink:0;display:flex;gap:10px;padding:10px 14px 14px;background:var(--paper);border-top:1px solid var(--border);
}
.tq-btn{
  height:46px;border-radius:30px;border:none;font-size:.9rem;font-weight:700;display:flex;align-items:center;justify-content:center;gap:6px;
}
.tq-btn-back{width:52px;flex-shrink:0;background:var(--card);border:1px solid var(--border);color:var(--muted);}
.tq-btn-back:disabled{opacity:.4;}
.tq-btn-next{flex:1;background:var(--gold);color:var(--ink);}
.tq-intro{padding-top:6px;}
.tq-intro-heading{font-weight:700;color:var(--gold);font-size:.85rem;margin:14px 0 8px;display:flex;align-items:center;gap:6px;}
.tq-intro-text{font-size:.9rem;line-height:1.7;color:var(--ink);}
.tq-font-adjust-bar{display:flex;align-items:center;gap:8px;margin:4px 0 10px;justify-content:flex-end;}
.tq-font-btn{
  border:1px solid var(--border);background:var(--card);color:var(--ink);width:34px;height:30px;border-radius:8px;
  font-weight:700;font-size:.8rem;cursor:pointer;
}
.tq-font-btn:active{transform:scale(.94);}
.tq-qa-read-list{display:flex;flex-direction:column;gap:14px;}
.tq-qa-read-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px;}
.tq-qa-read-q{color:var(--question);font-weight:700;line-height:1.6;margin-bottom:8px;}
.tq-qa-read-a{color:var(--answer);line-height:1.65;}
.tq-qa-read-img{width:100%;max-height:220px;object-fit:contain;border-radius:8px;border:1px solid var(--border);margin-bottom:8px;background:#fff;}
.tq-video-wrap{position:relative;width:100%;padding-top:56.25%;border-radius:10px;overflow:hidden;background:#000;}
.tq-video-wrap #tq-yt-player{position:absolute;inset:0;width:100%;height:100%;}
.tq-video-overlay{position:absolute;inset:0;z-index:5;display:flex;}
.tq-seek-zone{width:30%;height:100%;cursor:pointer;}
.tq-center-zone{width:40%;height:100%;display:flex;align-items:center;justify-content:center;cursor:pointer;}
.tq-video-loading{
  position:absolute;inset:0;z-index:4;display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.85);font-size:22px;pointer-events:none;
}
.tq-status-icon{
  font-size:26px;color:#fff;background:rgba(0,0,0,.5);width:56px;height:56px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;opacity:0;transition:.3s;pointer-events:none;
}
.tq-status-icon.tq-show{opacity:1;transform:scale(1.08);}
.tq-skip-ind{
  position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.8);padding:9px 16px;
  border-radius:24px;opacity:0;transition:.2s;pointer-events:none;color:#fff;font-weight:700;font-size:.8rem;z-index:6;
}
.tq-skip-l{left:8%;}
.tq-skip-r{right:8%;}
.tq-mini-progress-wrap{width:100%;height:4px;background:var(--paper-2);border-radius:4px;overflow:hidden;margin:6px 0 4px;}
.tq-mini-progress-fill{height:100%;background:#e02020;width:0;transition:width .2s linear;}
.tq-activecheck-btn{
  position:absolute;bottom:14px;right:14px;z-index:7;background:var(--gold);color:var(--ink);border:none;
  padding:9px 16px;border-radius:24px;font-weight:800;font-size:.82rem;display:flex;align-items:center;gap:7px;
  box-shadow:0 4px 14px rgba(0,0,0,.35);animation:tq-pulse 1s infinite;
}
.tq-activecheck-btn span{background:rgba(0,0,0,.15);border-radius:50%;width:20px;height:20px;display:flex;align-items:center;justify-content:center;font-size:.72rem;}
@keyframes tq-pulse{0%,100%{transform:scale(1);}50%{transform:scale(1.05);}}
.tq-video-wrap iframe{position:absolute;inset:0;width:100%;height:100%;border:none;}
.tq-intro-start{width:100%;margin-top:20px;}
.tq-result{padding-top:4px;}
.tq-result-title{font-size:1.25rem;font-weight:800;color:var(--gold);}
.tq-result-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:16px 0;}
.tq-result-card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:14px;text-align:center;}
.tq-result-label{font-size:.72rem;color:var(--muted);display:block;}
.tq-result-val{font-size:1.5rem;font-weight:800;color:var(--ink);display:block;margin-top:4px;}
.tq-result-sub{margin-top:5px;display:flex;justify-content:center;gap:10px;}
.tq-result-heading{font-weight:700;color:var(--ink);margin:16px 0 8px;font-size:.88rem;border-bottom:1px solid var(--border);padding-bottom:8px;}
.tq-review-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.tq-review-item{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:10px 12px;font-size:.85rem;}
.tq-review-tag{display:inline-block;font-size:.68rem;font-weight:700;color:#fff;background:#f28b82;padding:2px 8px;border-radius:6px;margin-bottom:5px;}
.tq-review-correct{margin-top:6px;color:#3a8a52;font-size:.8rem;}

/* ---------- ব্যাখ্যা / লিডারবোর্ড মিনি-মোডাল ---------- */
.tq-explain-overlay{
  position:fixed;inset:0;z-index:410;background:rgba(20,15,5,.6);display:flex;align-items:flex-end;justify-content:center;
}
.tq-explain-content{
  background:var(--paper);width:100%;max-width:560px;max-height:80vh;overflow-y:auto;border-radius:20px 20px 0 0;
  padding:20px 18px 30px;-webkit-overflow-scrolling:touch;
}
.tq-explain-img{width:100%;max-height:240px;object-fit:contain;border-radius:10px;border:1px solid var(--border);margin-bottom:14px;background:#fff;}
.tq-explain-q{font-size:1.05rem;font-weight:700;color:var(--ink);margin-bottom:12px;border-bottom:1px solid var(--border);padding-bottom:10px;}
.tq-explain-ans{background:rgba(129,201,149,.12);border:1px solid #81c995;color:#3a8a52;padding:10px 12px;border-radius:10px;margin-bottom:14px;font-weight:600;font-size:.86rem;}
.tq-explain-text{font-size:.88rem;line-height:1.7;color:var(--ink);}
.tq-explain-close{
  position:fixed;bottom:20px;right:20px;width:52px;height:52px;border-radius:50%;background:var(--gold);color:var(--ink);
  border:none;font-size:1.2rem;box-shadow:0 6px 16px rgba(0,0,0,.3);z-index:411;
}
.tq-leaderboard-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;}
.tq-leaderboard-row{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:10px;background:var(--card);border:1px solid var(--border);}
.tq-leaderboard-row.tq-leaderboard-me{border-color:var(--gold);background:var(--gold-light);}
.tq-leaderboard-rank{width:22px;text-align:center;font-weight:800;color:var(--gold);font-size:.85rem;flex-shrink:0;}
.tq-leaderboard-name{flex:1;min-width:0;font-size:.85rem;font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.tq-leaderboard-score{font-size:.8rem;font-weight:700;color:var(--ink);flex-shrink:0;}
.tq-leaderboard-time{font-size:.72rem;color:var(--muted);flex-shrink:0;width:44px;text-align:right;}