/* ===== কোচিং হিসাব — styles ===== */

:root{
  --bg:#f4f6f5;
  --card:#ffffff;
  --ink:#0f172a;
  --ink-2:#475569;
  --ink-3:#7c8aa0;
  --line:#e5e9ec;
  --brand:#0f766e;
  --brand-d:#0b5d56;
  --brand-l:#e6f4f1;
  --ok:#0d8a4f;
  --ok-l:#e7f6ed;
  --warn:#b45309;
  --warn-l:#fef3c7;
  --bad:#c0392b;
  --bad-l:#fdecea;
  --info:#1d4ed8;
  --info-l:#e8effd;
  --r:14px;
  --r-s:10px;
  --sh:0 1px 2px rgba(15,23,42,.06), 0 6px 18px rgba(15,23,42,.05);
  --nav-h:64px;
  --brand-font: 'Hind Siliguri', 'Noto Sans Bengali', 'SolaimanLipi', 'Kalpurush', sans-serif;
}

*{box-sizing:border-box; -webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
html{background:var(--bg)}
body{
  font-family:var(--brand-font);
  background:var(--bg);
  color:var(--ink);
  font-size:15px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overscroll-behavior-y:none;
}
button,input,select,textarea{font-family:inherit;font-size:15px;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3}
p{margin:0}
.hidden{display:none !important}
.muted{color:var(--ink-3)}
.tiny{font-size:12px}
.small{font-size:13px}
.center{text-align:center}
.right{text-align:right}
.b{font-weight:600}
.mono-num{font-variant-numeric:tabular-nums}

/* ---------- layout ---------- */
.app{min-height:100dvh; padding-bottom:calc(var(--nav-h) + 18px + env(safe-area-inset-bottom))}
.topbar{
  position:sticky; top:0; z-index:40;
  background:linear-gradient(135deg,#0f766e,#0b5d56 60%,#0a5148);
  color:#fff;
  padding:calc(env(safe-area-inset-top) + 10px) 14px 10px;
  box-shadow:0 2px 14px rgba(11,93,86,.25);
}
.topbar-main{display:flex; align-items:center; gap:10px; justify-content:space-between}
.topbar-title{display:flex; align-items:center; gap:6px; min-width:0}
.topbar-title>span{font-size:18px; font-weight:700; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width:52vw}
.icon-btn{
  background:rgba(255,255,255,.14); border:0; color:#fff; cursor:pointer;
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;flex:none;
}
.icon-btn:active{transform:scale(.94)}
.month-pill{
  display:flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.16); border:0; color:#fff; cursor:pointer;
  padding:7px 11px; border-radius:999px; font-size:14px; font-weight:600; flex:none;
}
.month-pill:active{transform:scale(.97)}
.offline-badge{
  margin-top:8px; background:rgba(255,255,255,.16); border-radius:8px;
  padding:5px 10px; font-size:12px; display:flex; align-items:center; gap:6px;
}
.main{max-width:720px; margin:0 auto; padding:14px 12px 8px}
.view{animation:fade .22s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ---------- cards & bits ---------- */
.card{background:var(--card); border:1px solid var(--line); border-radius:var(--r); box-shadow:var(--sh); padding:14px; margin-bottom:12px}
.card-h{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px}
.card-h h3{font-size:15px}
.sec-title{font-size:13px;font-weight:700;color:var(--ink-3);letter-spacing:.02em;margin:18px 2px 8px;text-transform:none}
.row{display:flex;align-items:center;gap:10px}
.row-between{display:flex;align-items:center;justify-content:space-between;gap:10px}
.wrap{flex-wrap:wrap}
.grow{flex:1;min-width:0}
.divider{height:1px;background:var(--line);margin:12px -14px}
.chip{display:inline-flex;align-items:center;gap:4px;background:var(--brand-l);color:var(--brand-d);border-radius:999px;padding:3px 9px;font-size:12px;font-weight:600}
.chip.gray{background:#eef1f4;color:var(--ink-2)}
.chip.ok{background:var(--ok-l);color:var(--ok)}
.chip.warn{background:var(--warn-l);color:var(--warn)}
.chip.bad{background:var(--bad-l);color:var(--bad)}
.chip.info{background:var(--info-l);color:var(--info)}

/* ---------- summary grid ---------- */
.sum-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.sum-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:12px 13px;box-shadow:var(--sh);
  border-left:4px solid var(--brand);
}
.sum-card.ok{border-left-color:var(--ok)}
.sum-card.bad{border-left-color:var(--bad)}
.sum-card.warn{border-left-color:var(--warn)}
.sum-card.info{border-left-color:var(--info)}
.sum-label{font-size:12px;color:var(--ink-3);font-weight:600;display:flex;align-items:center;gap:5px}
.sum-val{font-size:20px;font-weight:700;margin-top:3px;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.sum-sub{font-size:11.5px;color:var(--ink-3);margin-top:2px}
.sum-big{grid-column:1/-1}
.sum-big .sum-val{font-size:28px}

/* ---------- buttons ---------- */
.btn{
  border:1px solid var(--line); background:#fff; color:var(--ink);
  border-radius:10px; padding:9px 14px; font-weight:600; cursor:pointer;
  display:inline-flex; align-items:center; justify-content:center; gap:6px; font-size:14px;
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--brand); border-color:var(--brand); color:#fff; box-shadow:0 2px 10px rgba(15,118,110,.25)}
.btn-primary:active{background:var(--brand-d)}
.btn-ghost{background:transparent;border-color:transparent;color:var(--brand-d)}
.btn-danger{background:var(--bad);border-color:var(--bad);color:#fff}
.btn-soft{background:var(--brand-l);border-color:transparent;color:var(--brand-d)}
.btn-block{width:100%}
.btn-lg{padding:13px 16px;font-size:16px;border-radius:12px}
.btn-sm{padding:6px 10px;font-size:13px;border-radius:9px}
.btn-row{display:flex;gap:8px;flex-wrap:wrap}

/* ---------- forms ---------- */
.field{display:block;margin-bottom:12px}
.field-label{display:block;font-size:12.5px;font-weight:600;color:var(--ink-2);margin-bottom:5px}
.field-label .opt{font-weight:400;color:var(--ink-3)}
input[type=text],input[type=tel],input[type=number],input[type=date],select,textarea{
  width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;outline:none;
  font-size:15px;
}
textarea{min-height:70px;resize:vertical}
input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,118,110,.12)}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.f3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
.check-row{display:flex;align-items:flex-start;gap:9px;font-size:13.5px;color:var(--ink-2);margin-bottom:12px;cursor:pointer}
.check-row input{width:18px;height:18px;margin-top:2px;accent-color:var(--brand);flex:none}
.hint{font-size:11.5px;color:var(--ink-3);margin-top:-6px;margin-bottom:10px}

/* ---------- search ---------- */
.search-box{position:relative;margin-bottom:10px}
.search-box input{padding-left:38px;padding-right:34px}
.search-box .s-ico{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--ink-3);font-size:14px;pointer-events:none}
.search-box .s-clr{position:absolute;right:8px;top:50%;transform:translateY(-50%);background:none;border:0;color:var(--ink-3);font-size:18px;cursor:pointer;line-height:1}
.seg{display:flex;background:#e9edf0;border-radius:10px;padding:3px;margin-bottom:10px;overflow-x:auto}
.seg button{flex:1;border:0;background:transparent;padding:7px 10px;border-radius:8px;font-size:13px;font-weight:600;color:var(--ink-2);cursor:pointer;white-space:nowrap}
.seg button.on{background:#fff;color:var(--brand-d);box-shadow:0 1px 3px rgba(0,0,0,.08)}

/* ---------- list ---------- */
.list{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);overflow:hidden}
.li{display:flex;align-items:center;gap:11px;padding:12px 13px;border-bottom:1px solid var(--line);cursor:pointer;background:#fff}
.li:last-child{border-bottom:0}
.li:active{background:#f8faf9}
.avatar{width:40px;height:40px;border-radius:12px;background:var(--brand-l);color:var(--brand-d);display:grid;place-items:center;font-weight:700;font-size:15px;flex:none}
.avatar.t{background:#eef2ff;color:#4338ca}
.li-main{flex:1;min-width:0}
.li-t{font-weight:600;font-size:14.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.li-s{font-size:12px;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.li-r{text-align:right;flex:none}
.li-r .amt{font-weight:700;font-size:14.5px;font-variant-numeric:tabular-nums}
.empty{text-align:center;padding:34px 18px;color:var(--ink-3)}
.empty .e-ico{font-size:38px;display:block;margin-bottom:8px;opacity:.8}
.empty p{font-size:13.5px;margin-bottom:12px}

/* ---------- table ---------- */
.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
.tbl th{text-align:left;font-size:11.5px;color:var(--ink-3);font-weight:700;padding:8px 6px;border-bottom:1px solid var(--line)}
.tbl td{padding:9px 6px;border-bottom:1px solid #f1f4f5}
.tbl tr:last-child td{border-bottom:0}
.tbl .n{text-align:right;font-variant-numeric:tabular-nums}
.tbl-wrap{overflow-x:auto}

/* ---------- fab & tabbar ---------- */
.fab{
  position:fixed; right:16px; bottom:calc(var(--nav-h) + 20px + env(safe-area-inset-bottom));
  width:54px;height:54px;border-radius:18px;border:0;background:var(--brand);color:#fff;font-size:28px;font-weight:400;
  box-shadow:0 8px 24px rgba(15,118,110,.4); cursor:pointer; z-index:35; display:grid;place-items:center;line-height:1;
}
.fab:active{transform:scale(.94)}
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:50;
  background:#fff;border-top:1px solid var(--line);
  display:flex;padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -2px 14px rgba(15,23,42,.06);
}
.tab{
  flex:1;border:0;background:none;cursor:pointer;padding:8px 2px 7px;
  display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--ink-3);
}
.tab-ico{font-size:19px;line-height:1}
.tab-txt{font-size:10.5px;font-weight:600}
.tab.on{color:var(--brand)}
.tab.on .tab-ico{transform:translateY(-1px)}

/* ---------- sheet/modal ---------- */
.sheet-root{position:fixed;inset:0;z-index:100;display:flex;align-items:flex-end;justify-content:center}
.sheet-backdrop{position:absolute;inset:0;background:rgba(11,23,32,.45);animation:fade .18s ease}
.sheet{
  position:relative;width:100%;max-width:560px;background:#fff;border-radius:20px 20px 0 0;
  max-height:92dvh;display:flex;flex-direction:column;
  animation:up .24s cubic-bezier(.2,.8,.3,1);
  padding-bottom:env(safe-area-inset-bottom);
}
@keyframes up{from{transform:translateY(100%)}to{transform:none}}
.sheet-handle{width:40px;height:4px;background:#dfe4e8;border-radius:99px;margin:8px auto 2px}
.sheet-head{display:flex;align-items:center;justify-content:space-between;padding:4px 14px 8px;border-bottom:1px solid var(--line)}
.sheet-head h3{font-size:16px}
.sheet-head .icon-btn{background:#f1f4f5;color:var(--ink-2)}
.sheet-body{padding:14px;overflow:auto;flex:1}
.sheet-foot{padding:10px 14px;border-top:1px solid var(--line);display:flex;gap:8px}
.sheet-foot .btn{flex:1}
@media(min-width:600px){
  .sheet-root{align-items:center}
  .sheet{border-radius:18px;max-height:86dvh}
}

/* ---------- confirm dialog (ফর্মের ওপরে আলাদা লেয়ার) ---------- */
.confirm-root{position:fixed;inset:0;z-index:150;display:flex;align-items:center;justify-content:center;padding:18px}
.confirm-backdrop{position:absolute;inset:0;background:rgba(11,23,32,.5);animation:fade .18s ease}
.confirm-box{
  position:relative;width:100%;max-width:360px;background:#fff;border-radius:16px;
  padding:16px;box-shadow:0 18px 50px rgba(0,0,0,.3);animation:pop .2s cubic-bezier(.2,.8,.3,1);
}
@keyframes pop{from{transform:scale(.94);opacity:0}to{transform:none;opacity:1}}
.confirm-box h4{font-size:16px;margin-bottom:8px}
.confirm-body{font-size:13.5px;color:var(--ink-2);max-height:52vh;overflow:auto}
.confirm-foot{display:flex;gap:8px;margin-top:14px}
.confirm-foot .btn{flex:1}
.confirm-list{border:1px solid var(--line);border-radius:10px;overflow:hidden;margin-top:8px}
.cl-row{display:flex;gap:10px;justify-content:space-between;padding:8px 10px;border-bottom:1px solid var(--line);font-size:13px}
.cl-row:last-child{border-bottom:0}
.cl-k{color:var(--ink-3);flex:none;max-width:42%}
.cl-v{text-align:right;font-weight:600;word-break:break-word}
.cl-v s{color:var(--bad);text-decoration:line-through;font-weight:400}
.cl-v b{color:var(--ok)}
.cl-total{background:#f7f9f8;font-size:14px}
.cf-note{background:var(--warn-l);color:#7c3d05;border-radius:9px;padding:8px 10px;font-size:12.5px;margin-top:10px}

/* ---------- toast ---------- */
.toast-btn{
  background:#fff;color:var(--brand-d);border:0;border-radius:999px;
  padding:4px 12px;font-weight:700;font-size:12.5px;margin-left:10px;cursor:pointer;
}
.toast{
  position:fixed;left:50%;transform:translateX(-50%) translateY(20px);bottom:calc(var(--nav-h) + 26px);
  background:#0f172a;color:#fff;padding:10px 16px;border-radius:999px;font-size:13.5px;font-weight:500;
  z-index:200;opacity:0;pointer-events:none;transition:.25s;max-width:88vw;text-align:center;box-shadow:0 6px 20px rgba(0,0,0,.25)
}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- setup ---------- */
.screen-setup{min-height:100dvh;background:linear-gradient(160deg,#0f766e,#0a5148 55%,#073b34);padding:26px 16px;display:flex;align-items:center}
.setup-wrap{width:100%;max-width:480px;margin:0 auto;color:#fff}
.setup-logo{margin-bottom:10px}
.setup-title{font-size:28px;font-weight:700}
.setup-sub{opacity:.88;font-size:14px;margin:6px 0 20px;text-align:center}
.setup-card{padding:16px;border-radius:18px}
.setup-card .field-label{color:var(--ink-2)}
.setup-card .tiny{font-size:11.5px}

/* ---------- bars / chart ---------- */
.chart{display:flex;align-items:flex-end;gap:8px;height:120px;padding:6px 2px 0}
.chart-col{flex:1;display:flex;flex-direction:column;align-items:center;gap:5px;height:100%;justify-content:flex-end}
.chart-bars{display:flex;gap:3px;align-items:flex-end;height:100%;width:100%;justify-content:center}
.chart-bar{width:9px;border-radius:4px 4px 0 0;min-height:3px}
.chart-bar.in{background:var(--brand)}
.chart-bar.out{background:#e0a458}
.chart-x{font-size:10.5px;color:var(--ink-3);white-space:nowrap}
.legend{display:flex;gap:14px;font-size:12px;color:var(--ink-2);margin-top:8px;justify-content:center}
.legend i{display:inline-block;width:9px;height:9px;border-radius:3px;margin-right:4px}

/* ---------- progress ---------- */
.bar{height:7px;background:#eef1f3;border-radius:99px;overflow:hidden}
.bar>span{display:block;height:100%;background:var(--brand);border-radius:99px}
.bar.ok>span{background:var(--ok)}
.bar.bad>span{background:var(--bad)}

/* ---------- kv rows ---------- */
.kv{display:flex;justify-content:space-between;gap:10px;padding:7px 0;font-size:13.5px;border-bottom:1px dashed #eef1f3}
.kv:last-child{border-bottom:0}
.kv .k{color:var(--ink-2)}
.kv .v{font-weight:600;font-variant-numeric:tabular-nums;text-align:right}
.kv.total{border-top:1px solid var(--line);border-bottom:0;padding-top:9px;margin-top:3px;font-size:15px}
.kv.total .v{font-weight:700}

/* ---------- misc ---------- */
.pill-date{font-size:11.5px;color:var(--ink-3)}
.note{font-size:12px;color:var(--ink-3)}
.act-btns{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.act{background:#fff;border:1px solid var(--line);border-radius:12px;padding:11px 4px;text-align:center;cursor:pointer;box-shadow:var(--sh)}
.act:active{transform:scale(.97)}
.act .a-ico{font-size:19px;display:block;line-height:1.2}
.act .a-t{font-size:11px;font-weight:600;color:var(--ink-2);margin-top:3px}

/* ---------- print ---------- */
.print-area{display:none}
@media print{
  body{background:#fff}
  .topbar,.tabbar,.fab,#app,.toast,.sheet-root,.no-print{display:none !important}
  .print-area{display:block !important;padding:0}
  .p-head{text-align:center;border-bottom:2px solid #111;padding-bottom:10px;margin-bottom:14px}
  .p-head h1{font-size:20px;margin:0}
  .p-head p{margin:2px 0;font-size:12px;color:#333}
  .p-title{font-size:14px;font-weight:700;margin:14px 0 6px;border-bottom:1px solid #999;display:inline-block}
  .p-tbl{width:100%;border-collapse:collapse;font-size:12px}
  .p-tbl th,.p-tbl td{border:1px solid #999;padding:5px 7px;text-align:left}
  .p-tbl th{background:#f2f2f2}
  .p-tbl .n{text-align:right}
  .p-foot{margin-top:26px;display:flex;justify-content:space-between;font-size:12px}
  .p-sign{border-top:1px dashed #666;padding-top:5px;width:40%;text-align:center;font-size:11px}
  @page{margin:14mm}
}

/* ===== বাগ-ফিক্স: সেটআপ স্ক্রিনে সাদা-কার্ডে সাদা-লেখা ===== */
.setup-card input,
.setup-card select,
.setup-card textarea { color: var(--ink); background: #fff; }
.setup-card input::placeholder { color: #9aa7b4; }

/* ===== মাস-সতর্কতা ব্যানার ===== */
.month-banner{
  margin-top:8px;background:#fde68a;color:#78350f;border-radius:8px;
  padding:7px 10px;font-size:12.5px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:8px;
}
.month-banner button{
  background:#78350f;color:#fff;border:0;padding:5px 10px;
  font-size:12px;border-radius:8px;font-weight:600;cursor:pointer;flex:none;
}
.month-banner button:active{transform:scale(.96)}

/* ===== ফর্মে সতর্কতা লাইন ===== */
.warn-line{
  background:var(--warn-l);color:#7c3d05;border-radius:9px;padding:8px 10px;
  font-size:12.5px;margin:-4px 0 12px;display:flex;gap:8px;
  align-items:center;justify-content:space-between;flex-wrap:wrap;
}
.warn-line button{background:#b45309;color:#fff;border:0;padding:5px 10px;font-size:12px;border-radius:8px;cursor:pointer;font-weight:600}
.hint-month{font-size:11.5px;color:var(--ink-3);margin:-6px 0 10px}
.filter-chip{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  background:var(--info-l);color:var(--info);border-radius:9px;padding:7px 10px;
  font-size:12.5px;font-weight:600;margin-bottom:10px;
}
.filter-chip button{background:none;border:0;color:var(--info);font-weight:700;font-size:16px;cursor:pointer;line-height:1}


/* ===== ব্র্যান্ড লোগো ===== */
.brand-logo{width:30px;height:30px;border-radius:8px;flex:none;box-shadow:0 1px 4px rgba(0,0,0,.18);background:#fff}
.setup-logo{margin:0 auto 14px;width:120px}
.setup-logo img{width:120px;height:120px;display:block;border-radius:26px;
  box-shadow:0 10px 26px rgba(0,0,0,.25)}
.setup-title{text-align:center;font-size:26px;letter-spacing:.01em}
.screen-setup .setup-wrap{text-align:center}
.p-logo{height:48px;width:auto;display:block;margin:0 auto 8px}


/* ===== নতুন শিক্ষার্থী: ফি-মোড সেগমেন্ট ===== */
.seg-fm{display:flex;background:#e9edf0;border-radius:10px;padding:3px;margin-bottom:10px}
.seg-fm button{flex:1;border:0;background:transparent;padding:8px 6px;border-radius:8px;
  font-size:13px;font-weight:600;color:var(--ink-2);cursor:pointer;line-height:1.3}
.seg-fm button.on{background:#fff;color:var(--brand-d);box-shadow:0 1px 3px rgba(0,0,0,.08)}
.subj-pick{display:flex;align-items:center;gap:8px;padding:9px 10px;border-bottom:1px solid var(--line)}
.subj-pick:last-child{border-bottom:0}
.subj-pick input[type=checkbox]{width:18px;height:18px;accent-color:var(--brand);flex:none}

.subj-box.no-fee .subj-fee{display:none}

/* ---------- ক্লাউড সিঙ্ক ইন্ডিকেটর ---------- */
.sync-dot{
  border:0;background:transparent;cursor:pointer;font-size:14px;line-height:1;
  padding:2px 6px;border-radius:999px;color:var(--ink-3);transition:.2s;
}
.sync-dot.ok{color:var(--ok)}
.sync-dot.syncing{color:var(--brand);animation:spin 1s linear infinite}
.sync-dot.error{color:var(--bad)}
.sync-dot.offline{color:var(--warn)}
@keyframes spin{to{transform:rotate(360deg)}}
.cloud-note{font-size:12px;color:var(--ink-3);margin-top:8px;line-height:1.5}