@font-face{font-family:"Vazirmatn";src:local("Vazirmatn"),local("Vazirmatn Regular");font-display:swap}
:root{
  --bg:#F3F5F9; --surface:#FFFFFF; --surface-2:#E9EEF6; --ink:#16213A; --muted:#5B6781; --line:#D5DCE8;
  --brand:#1F3864; --brand-ink:#FFFFFF; --accent:#D98A1E; --accent-soft:#FBEBD3;
  --good:#1E8A5A; --good-soft:#DDF3E8; --warn:#B7791F; --warn-soft:#FCEFD8; --bad:#C0392B; --bad-soft:#FBE3E0;
  --c1:#2F5DA8; --c2:#D98A1E; --c3:#1E8A5A; --c4:#8E4BB5; --ghost:#B9C6DC;
  --r:12px; --font:"Vazirmatn",Tahoma,"Segoe UI",sans-serif;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --bg:#0F1522; --surface:#18202F; --surface-2:#222C3E; --ink:#E6EBF4; --muted:#9AA6BD; --line:#2E3A50;
    --brand:#7FA2DB; --brand-ink:#0F1522; --accent:#F0A94A; --accent-soft:#3A2C17;
    --good:#4CC38A; --good-soft:#163428; --warn:#E8B04E; --warn-soft:#3A2E16; --bad:#F07366; --bad-soft:#3D1D1A;
    --c1:#7FA2DB; --c2:#F0A94A; --c3:#4CC38A; --c4:#C08BE0; --ghost:#3A4760;
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --bg:#0F1522; --surface:#18202F; --surface-2:#222C3E; --ink:#E6EBF4; --muted:#9AA6BD; --line:#2E3A50;
  --brand:#7FA2DB; --brand-ink:#0F1522; --accent:#F0A94A; --accent-soft:#3A2C17;
  --good:#4CC38A; --good-soft:#163428; --warn:#E8B04E; --warn-soft:#3A2E16; --bad:#F07366; --bad-soft:#3D1D1A;
  --c1:#7FA2DB; --c2:#F0A94A; --c3:#4CC38A; --c4:#C08BE0; --ghost:#3A4760;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{background:var(--bg);margin:0}
body{color:var(--ink);font-family:var(--font);font-size:15px;line-height:1.7;direction:rtl;padding-inline:16px;padding-block:0 96px;-webkit-tap-highlight-color:transparent}
.wrap{max-width:1040px;margin:0 auto}
h1,h2,h3{margin:0;line-height:1.4;text-wrap:balance}
h1{font-size:19px;font-weight:800} h2{font-size:17px;font-weight:700} h3{font-size:15px;font-weight:700}
p{margin:0}
.muted{color:var(--muted)} .small{font-size:13px} .xs{font-size:12px} .num{font-variant-numeric:tabular-nums}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
a{color:var(--brand)}

.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-block:14px 10px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px}
.mark{width:36px;height:36px;border-radius:9px;background:var(--brand);color:var(--brand-ink);display:grid;place-items:center;font-weight:800;font-size:15px;flex:none}
.brand small{display:block;color:var(--muted);font-size:12px;line-height:1.2}
.seg{display:inline-flex;background:var(--surface-2);border-radius:999px;padding:3px;flex-wrap:wrap}
.seg button{border:0;background:transparent;padding:6px 14px;border-radius:999px;font-size:13px;color:var(--muted)}
.seg button[aria-pressed="true"]{background:var(--surface);color:var(--ink);font-weight:700;box-shadow:0 1px 2px rgba(0,0,0,.08)}
.tabs{display:flex;gap:2px;border-bottom:1px solid var(--line);overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tabs button{border:0;background:none;padding:8px 12px;color:var(--muted);font-weight:600;border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap;position:relative}
.tabs button[aria-pressed="true"]{color:var(--ink);border-bottom-color:var(--accent)}
.badge{display:inline-grid;place-items:center;min-width:18px;height:18px;padding:0 5px;border-radius:999px;background:var(--bad);color:#fff;font-size:11px;font-weight:700;margin-inline-start:4px;line-height:1}

.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px}
.stack{display:flex;flex-direction:column;gap:14px}
.stack>*,.layout>*,.charts>*,.grid2>*{min-width:0}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.between{justify-content:space-between}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(160px,100%),1fr));gap:10px}
label.f{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted);min-width:0}
input[type=text],input[type=number],input[type=password],input[type=time],select,textarea{width:100%;background:var(--surface);border:1px solid var(--line);border-radius:9px;padding:8px 10px;color:var(--ink);min-width:0}
textarea{resize:vertical;min-height:70px}
input[type=number],input[type=time],.ltr{direction:ltr;text-align:center}
.btn{border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:9px 16px;font-weight:600;text-decoration:none;display:inline-flex;align-items:center;gap:6px;color:var(--ink);justify-content:center}
.btn.primary{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.btn.accent{background:var(--accent);border-color:var(--accent);color:#1b1206}
.btn.ghost{background:transparent;border-color:transparent;color:var(--muted)}
.btn.danger{color:var(--bad);border-color:var(--bad)}
.btn.sm{padding:5px 10px;font-size:13px}
.btn.block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}
.link{border:0;background:none;color:var(--brand);padding:0;font-weight:600}

.datebar{display:flex;align-items:center;justify-content:space-between;gap:8px;background:var(--brand);color:var(--brand-ink);border-radius:var(--r);padding:10px 12px}
.datebar button{border:0;background:rgba(255,255,255,.14);color:inherit;width:36px;height:36px;border-radius:9px;font-size:18px}
.datebar button:disabled{opacity:.35}
.datebar .d{text-align:center;line-height:1.3}
.datebar .d b{font-size:17px;display:block}
.datebar .d span{font-size:12px;opacity:.85}

.sess{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);overflow:hidden}
.sess-h{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;background:var(--surface-2);gap:8px;flex-wrap:wrap}
.sess-h .n{width:26px;height:26px;border-radius:50%;background:var(--brand);color:var(--brand-ink);display:grid;place-items:center;font-size:13px;font-weight:700;flex:none}
.sess-b{padding:12px 14px;display:flex;flex-direction:column;gap:12px}
.planline{background:var(--surface-2);border-radius:9px;padding:8px 12px;font-size:13px}
.kind{display:inline-flex;gap:6px;flex-wrap:wrap}
.chip{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:4px 12px;font-size:13px}
.chip[aria-pressed="true"]{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.chip.sd[aria-pressed="true"]{background:var(--good);border-color:var(--good);color:var(--surface)}
.chip.sh[aria-pressed="true"]{background:var(--warn);border-color:var(--warn);color:var(--surface)}
.chip.sn[aria-pressed="true"]{background:var(--bad);border-color:var(--bad);color:var(--surface)}
.tests{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;align-items:end}
.pct{height:40px;border-radius:9px;display:grid;place-items:center;font-weight:800;background:var(--surface-2)}
.rate{display:grid;grid-template-columns:110px 1fr;align-items:center;gap:8px}
.scale{display:flex;gap:6px;flex-wrap:wrap}
.scale button{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:var(--surface);font-weight:700;font-size:14px}
.scale.s10 button{width:30px;height:30px;font-size:13px}
.scale button[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:#1b1206}
.hint{font-size:12px;color:var(--muted)}

.summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:12px}
.kpi .v{font-size:22px;font-weight:800;line-height:1.2}
.kpi .l{font-size:12px;color:var(--muted)}
.kpi .s{font-size:12px}
.kpi.hot{background:var(--accent-soft);border-color:var(--accent)}
.up{color:var(--good)} .down{color:var(--bad)}

.toast{position:fixed;bottom:calc(84px + env(safe-area-inset-bottom,0px));left:50%;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:999px;font-size:14px;z-index:30;max-width:calc(100% - 32px);text-align:center}
.banner{border-radius:var(--r);padding:10px 14px;font-size:13px;background:var(--accent-soft);color:var(--ink);border:1px solid var(--accent)}
.banner.good{background:var(--good-soft);border-color:var(--good)}

.layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:16px;align-items:start}
@media (max-width:820px){.layout{grid-template-columns:minmax(0,1fr)}}
.pill{display:inline-block;font-size:11px;border-radius:999px;padding:1px 8px;font-weight:600;white-space:nowrap}
.pill.good{background:var(--good-soft);color:var(--good)}
.pill.warn{background:var(--warn-soft);color:var(--warn)}
.pill.bad{background:var(--bad-soft);color:var(--bad)}
.pill.info{background:var(--surface-2);color:var(--muted)}
.charts{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(300px,100%),1fr));gap:12px}
.chart svg{width:100%;height:auto;display:block;direction:ltr}
.legend{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--muted)}
.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-left:4px;vertical-align:middle}
.tbl-wrap{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:13px}
th,td{padding:7px 8px;border-bottom:1px solid var(--line);text-align:right;white-space:nowrap}
th{color:var(--muted);font-weight:600;font-size:12px}
tr.click{cursor:pointer} tr.click:hover td{background:var(--surface-2)}
details.day{border:1px solid var(--line);border-radius:10px;background:var(--surface)}
details.day summary{padding:10px 12px;cursor:pointer;display:flex;gap:10px;flex-wrap:wrap;align-items:center;list-style:none}
details.day summary::-webkit-details-marker{display:none}
details.day .in{padding:0 12px 12px}
.empty{text-align:center;padding:28px 16px;color:var(--muted)}
.foot{text-align:center;margin-top:28px;font-size:13px;color:var(--brand);font-weight:700}

.weekbar{display:flex;align-items:center;justify-content:space-between;gap:8px}
.weekbar .t{text-align:center;font-weight:700}
.pday{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);overflow:hidden}
.pday-h{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:8px 12px;background:var(--surface-2);flex-wrap:wrap}
.pday-h.today{background:var(--accent-soft)}
.pday-b{padding:10px 12px;display:flex;flex-direction:column;gap:8px}
.prow{display:grid;grid-template-columns:26px minmax(0,1.1fr) minmax(0,1.4fr) minmax(0,1.1fr) 76px 108px 70px 30px;gap:6px;align-items:center}
.prow .ix{font-size:12px;color:var(--muted);text-align:center}
.prow input,.prow select{padding:6px 8px;font-size:13px}
.prow .x{border:0;background:none;color:var(--muted);font-size:18px;line-height:1}
.phead{font-size:11px;color:var(--muted)}
@media (max-width:720px){
  .prow{grid-template-columns:22px 1fr 1fr 70px;grid-template-areas:"ix c t x" ". r r r" ". m k q";padding-bottom:8px;border-bottom:1px dashed var(--line)}
  .prow .ix{grid-area:ix}.prow [data-pk=c]{grid-area:c}.prow [data-pk=t]{grid-area:t}.prow [data-pk=r]{grid-area:r}.prow [data-pk=m]{grid-area:m}.prow [data-pk=k]{grid-area:k}.prow [data-pk=q]{grid-area:q}.prow .x{grid-area:x}
  .phead{display:none}
}
.plist{display:flex;flex-direction:column;gap:6px}
.pitem{display:flex;gap:10px;align-items:flex-start;justify-content:space-between;font-size:14px;padding:6px 0;border-bottom:1px dashed var(--line)}
.pitem:last-child{border-bottom:0}
.dot{width:10px;height:10px;border-radius:50%;display:inline-block;background:var(--line);flex:none;margin-top:8px}
.prow .dot{margin-top:0}
.dot.d{background:var(--good)}.dot.h{background:var(--warn)}.dot.n{background:var(--bad)}

/* bottom nav (student mini app) */
.bnav{position:fixed;left:0;right:0;bottom:0;background:var(--surface);border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(5,1fr);padding-bottom:env(safe-area-inset-bottom,0px);z-index:20}
.bnav button{border:0;background:none;padding:8px 2px 6px;display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--muted);font-size:11px;font-weight:600;position:relative}
.bnav button svg{width:22px;height:22px}
.bnav button[aria-current="true"]{color:var(--brand)}
.bnav .badge{position:absolute;top:4px;left:calc(50% - 22px)}

/* chat */
.thread{display:flex;flex-direction:column;gap:8px}
.bubble{max-width:82%;padding:8px 12px;border-radius:14px;font-size:14px;white-space:pre-wrap;word-break:break-word}
.bubble.me{align-self:flex-start;background:var(--brand);color:var(--brand-ink);border-bottom-right-radius:4px}
.bubble.them{align-self:flex-end;background:var(--surface-2);border-bottom-left-radius:4px}
.bubble img{max-width:100%;border-radius:10px;display:block;margin-bottom:4px}
.bubble .t{display:block;font-size:11px;opacity:.7;margin-top:2px}
.tlist{display:flex;flex-direction:column;gap:6px}
.titem{display:flex;flex-direction:column;gap:2px;text-align:right;border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:10px 12px;width:100%}
.titem .l{font-size:13px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* modal */
.modal{position:fixed;inset:0;background:rgba(10,15,25,.55);display:grid;place-items:center;padding:16px;z-index:40}
.modal .box{background:var(--surface);border-radius:14px;padding:18px;width:min(520px,100%);max-height:calc(100vh - 32px);overflow:auto}
.codebox{direction:ltr;font-family:ui-monospace,Consolas,monospace;font-size:26px;letter-spacing:4px;font-weight:800;text-align:center;background:var(--surface-2);border-radius:10px;padding:10px;user-select:all}
.msgbox{white-space:pre-wrap;background:var(--surface-2);border-radius:9px;padding:10px;font-size:13px;user-select:all}

.srow{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(4,minmax(0,1fr)) minmax(0,1.6fr);gap:8px;align-items:center;padding:10px 12px;border-bottom:1px solid var(--line);text-align:right;background:none;border-inline:0;border-top:0;width:100%}
.srow:hover{background:var(--surface-2)}
.srow.head{font-size:12px;color:var(--muted);cursor:default}
.srow.head:hover{background:none}
@media (max-width:720px){.srow{grid-template-columns:1fr 1fr;row-gap:2px}.srow.head{display:none}.srow .hide-m{display:none}}
.loading{display:grid;place-items:center;min-height:50vh;color:var(--muted)}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.noprint{display:none!important}}

/* ---------- online exams ---------- */
.qcard{display:flex;flex-direction:column;gap:6px;text-align:right;border:1px solid var(--line);background:var(--surface);border-radius:var(--r);padding:14px;width:100%}
.qcard.live{border-color:var(--good);box-shadow:inset -4px 0 0 var(--good)}
.exam{position:fixed;inset:0;background:var(--bg);z-index:25;display:flex;flex-direction:column}
.exam-bar{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 12px;padding-top:calc(8px + env(safe-area-inset-top,0px));background:var(--surface);border-bottom:1px solid var(--line);flex-wrap:wrap}
.exam-bar .timer{font-size:20px;font-weight:800;direction:ltr;font-variant-numeric:tabular-nums;padding:2px 12px;border-radius:9px;background:var(--surface-2)}
.exam-bar .timer.low{background:var(--bad-soft);color:var(--bad)}
.exam-body{flex:1;display:grid;grid-template-columns:minmax(0,1fr);min-height:0}
@media (min-width:900px){.exam-body{grid-template-columns:minmax(0,1fr) 360px}.exam-tabs{display:none!important}.exam-body>[hidden]{display:block!important}}
.exam-pane{overflow:auto;min-height:0;-webkit-overflow-scrolling:touch}
.pdf-wrap{display:flex;flex-direction:column;align-items:center;gap:10px;padding:10px 4px 90px;direction:ltr}
.pdf-page{background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.18);position:relative;max-width:none}
.pdf-page canvas{display:block}
.pdf-n{position:absolute;top:6px;left:8px;font-size:11px;color:#999}
.pdf-msg{padding:40px 16px;text-align:center;color:var(--muted);direction:rtl}
.pdf-zoom{position:sticky;top:8px;display:flex;gap:6px;justify-content:center;z-index:2}
.asheet{padding:12px 12px 90px;display:flex;flex-direction:column;gap:4px}
.asheet h4{margin:10px 0 4px;font-size:13px;color:var(--brand)}
.qrow{display:grid;grid-template-columns:38px repeat(4,1fr);gap:6px;align-items:center;padding:3px 0}
.qrow .qn{font-weight:700;font-size:13px;text-align:center;color:var(--muted);font-variant-numeric:tabular-nums}
.qrow button{height:36px;border-radius:18px;border:1.5px solid var(--line);background:var(--surface);font-weight:700;font-size:14px;color:var(--muted)}
.qrow button[aria-pressed="true"]{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.qrow.done .qn{color:var(--brand)}
.exam-tabs{position:fixed;bottom:0;left:0;right:0;display:grid;grid-template-columns:1fr 1fr;background:var(--surface);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom,0px);z-index:26}
.exam-tabs button{border:0;background:none;padding:12px;font-weight:700;color:var(--muted)}
.exam-tabs button[aria-pressed="true"]{color:var(--brand);box-shadow:inset 0 3px 0 var(--accent)}
.keygrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(64px,1fr));gap:6px}
.keygrid span{border-radius:8px;padding:4px 6px;font-size:12px;text-align:center;font-variant-numeric:tabular-nums;border:1px solid var(--line)}
.keygrid .c{background:var(--good-soft);border-color:var(--good)}
.keygrid .w{background:var(--bad-soft);border-color:var(--bad)}
.keygrid .b{background:var(--surface-2)}
.qbar{display:grid;grid-template-columns:44px 1fr 90px;gap:8px;align-items:center;font-size:12px;padding:3px 0}
.qbar i{display:flex;height:12px;border-radius:6px;overflow:hidden;background:var(--surface-2)}
.qbar i b{display:block;height:100%}
.keyedit{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:4px 12px}
.keyedit .qrow{grid-template-columns:30px repeat(4,1fr);gap:3px}
.keyedit .qrow button{height:26px;font-size:12px}

/* home screen & tiles */
.hero{background:linear-gradient(135deg,#1F3864,#2f4f86);color:#fff;border-radius:var(--r);padding:16px;display:flex;flex-direction:column;gap:10px;box-shadow:0 6px 20px rgba(20,40,80,.18)}
.hero h2{margin:2px 0 0;color:#fff}
.hero .xs{opacity:.8}
.hero-row{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:13px;opacity:.95}
.hero-pts{display:flex;flex-direction:column;align-items:center;background:rgba(255,255,255,.14);border-radius:12px;padding:6px 12px;min-width:74px}
.hero-pts b{font-size:22px;line-height:1.2}
.tiles{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
@media (min-width:620px){.tiles{grid-template-columns:repeat(4,1fr)}}
.tile{border:1px solid var(--line);background:var(--surface);border-radius:var(--r);padding:14px 10px;display:flex;flex-direction:column;align-items:center;text-align:center;color:var(--ink);min-height:104px;-webkit-tap-highlight-color:transparent;transition:transform .08s ease}
.tile:active{transform:scale(.97);background:var(--surface-2)}
.tile .ic{font-size:28px;line-height:1.2;margin-bottom:6px}
.tile .tl{font-weight:700;font-size:14px}
.tile .ts{font-size:11px;color:var(--muted);margin-top:2px}
details>summary{cursor:pointer}