:root{
  --bg:#0d1117; --bg2:#131a26; --panel:#161e2e; --panel2:#1b2437;
  --line:#26304a; --text:#e6ebf5; --muted:#93a3c9; --dim:#5a6990;
  --accent:#5ba8ff; --green:#4ade80; --red:#f87171; --amber:#fbbf24;
  --radius:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{direction:rtl}
body{font-family:'Segoe UI',Tahoma,'Noto Kufi Arabic',-apple-system,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;line-height:1.6}
button,input,select,textarea{font-family:inherit}
.screen{display:none}
.screen.active{display:block}

/* ---------- LOGIN ---------- */
#login{display:none;align-items:center;justify-content:center;min-height:100vh;padding:24px}
#login.active{display:flex}
.login-card{width:100%;max-width:420px;background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:36px}
.logo{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,var(--accent),#7c3aed);display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:800;color:#fff;margin-bottom:18px}
.logo-dot{color:#c7d5ff}
h1{font-size:24px;margin-bottom:6px}
.tag{color:var(--muted);font-size:14px;margin-bottom:26px;line-height:1.7}
#login-form label{display:block;font-size:13px;color:var(--muted);margin-bottom:16px}
#login-form input{width:100%;margin-top:6px;background:var(--bg2);border:1px solid var(--line);border-radius:10px;padding:12px 14px;color:var(--text);font-size:15px;outline:none}
#login-form input:focus{border-color:var(--accent)}
.msg{color:var(--red);font-size:13px;min-height:18px;margin:4px 0 12px}
.btn{display:inline-flex;align-items:center;gap:8px;border:0;border-radius:10px;padding:12px 18px;font-size:15px;font-weight:600;cursor:pointer;transition:filter .15s,transform .05s}
.btn:hover{filter:brightness(1.1)}
.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--accent);color:#04121f;width:100%;justify-content:center}
.btn.success{background:var(--green);color:#04160a}
.btn.danger{background:var(--red);color:#1c0608}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--muted)}
.btn.sm{padding:8px 12px;font-size:13px}
.btn .k{background:rgba(0,0,0,.15);border-radius:6px;padding:2px 7px;font-size:12px}

/* ---------- TOPBAR ---------- */
.topbar{position:sticky;top:0;z-index:10;background:rgba(13,17,23,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:24px;padding:14px 24px}
.brand{font-weight:800;font-size:16px;letter-spacing:.3px}
.topbar nav{display:flex;gap:6px}
.nav-btn{background:transparent;border:0;color:var(--muted);font-size:14px;font-weight:600;padding:8px 14px;border-radius:9px;cursor:pointer}
.nav-btn.active{background:var(--panel2);color:var(--text)}
.who{margin-right:auto;display:flex;align-items:center;gap:14px;color:var(--muted);font-size:14px}
#error-bar{display:none;background:rgba(248,113,113,.12);border:1px solid rgba(248,113,113,.4);color:#fca5a5;padding:10px 24px;font-size:13px;margin:12px auto 0;max-width:880px;border-radius:10px}
#error-bar.active{display:block}
.link{background:none;border:none;color:var(--accent);cursor:pointer;font-size:13px}

/* ---------- VIEWS ---------- */
.view{display:none;max-width:880px;margin:0 auto;padding:24px}
.view.active{display:block}
main.view{padding-bottom:80px}

/* ---------- FILTERS ---------- */
.filters{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;margin-bottom:16px}
.filter-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.filter-label{font-size:12px;color:var(--muted);font-weight:700}
.filters select{background:var(--bg2);border:1px solid var(--line);border-radius:9px;padding:8px 12px;color:var(--text);font-size:14px;outline:none;cursor:pointer;max-width:220px}
.filters select:focus{border-color:var(--accent)}
.filter-summary{color:var(--dim);font-size:12px;margin-top:8px}

/* ---------- PROGRESS ---------- */
.progress-wrap{margin-bottom:20px}
.progress-meta{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin-bottom:8px}
.progress{height:8px;background:var(--bg2);border-radius:99px;overflow:hidden}
#progress-bar{height:100%;width:0%;background:linear-gradient(90deg,var(--accent),var(--green));transition:width .3s}

/* ---------- CARD ---------- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px;position:relative}
.card-top{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.pill{padding:4px 11px;border-radius:99px;font-size:12px;font-weight:700}
.pill.cat{background:#14263f;color:var(--accent)}
.pill.sub{background:#1c2a1a;color:var(--green)}
.pill.stage{background:#3a2c10;color:var(--amber)}
.pill.status{background:#241a2e;color:#c084fc}
.q-title{font-size:20px;line-height:1.8;margin-bottom:16px;font-weight:700}
.media{display:flex;flex-direction:column;gap:10px;margin-bottom:16px}
.media img{max-width:100%;max-height:320px;border-radius:12px;border:1px solid var(--line)}
.media video{max-width:100%;max-height:320px;border-radius:12px}
.options-box{background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:14px}
.options-label{font-size:12px;color:var(--muted);font-weight:700;margin-bottom:10px;letter-spacing:.3px}
.options-list{list-style:none;display:flex;flex-direction:column;gap:8px}
.options-list li{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:10px;border:1px solid var(--line);font-size:15px;line-height:1.6}
.opt-num{width:26px;height:26px;border-radius:8px;background:var(--bg2);color:var(--muted);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex-shrink:0}
.opt-text{flex:1}
.opt-flag{font-size:11px;font-weight:700;background:rgba(74,222,128,.12);color:var(--green);padding:3px 9px;border-radius:99px;flex-shrink:0}
li.opt.correct{border-color:rgba(74,222,128,.5);background:rgba(74,222,128,.08)}
li.opt.correct .opt-num{background:var(--green);color:#04160a}
li.opt.wrong{opacity:.62}
li.opt.wrong .opt-flag{display:none}
.options-match{color:var(--amber);font-size:13px;margin-top:10px}
.answer-box,.hint-box{background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:14px}
.answer-label{font-size:11px;letter-spacing:.8px;color:var(--green);font-weight:700;margin-bottom:6px}
.hint-box .answer-label{color:var(--amber)}
.ref-box{background:#1c2a1a;border:1px solid rgba(74,222,128,.3);border-radius:12px;padding:14px 16px;margin-bottom:14px}
.ref-box .answer-label{color:var(--green)}
.q-answer,.q-reference,.q-hint{font-size:16px;line-height:1.8}
.q-reference{color:#b8e6c8;font-size:14px}
.q-hint{font-size:14px;color:var(--muted)}
.actions{display:flex;gap:12px;margin:18px 0 6px}
.actions .btn{flex:1;justify-content:center;padding:14px}
.note-row{margin-top:10px}
.note-row textarea{width:100%;background:var(--bg2);border:1px solid var(--line);border-radius:10px;padding:12px;color:var(--text);min-height:70px;font-size:14px;resize:vertical;outline:none;font-family:inherit}
.note-row textarea:focus{border-color:var(--red)}
.note-row .btn{margin-top:8px;margin-left:6px}
.hidden{display:none}
.card-nav{display:flex;align-items:center;justify-content:space-between;margin-top:20px;color:var(--dim);font-size:13px}

/* ---------- RESULTS ---------- */
.results-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:14px}
.tabs{display:flex;gap:6px}
.tab{background:transparent;border:0;color:var(--muted);font-weight:600;font-size:14px;padding:8px 14px;border-radius:9px;cursor:pointer}
.tab.active{background:var(--panel2);color:var(--text)}
.exports{display:flex;gap:8px}
.results-count{color:var(--muted);font-size:13px;margin-bottom:10px}
.table-wrap{overflow-x:auto;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;font-size:13px;min-width:880px}
th{text-align:right;background:var(--panel2);color:var(--muted);padding:10px 12px;font-size:11px;letter-spacing:.5px;position:sticky;top:57px}
td{padding:10px 12px;border-top:1px solid var(--line);vertical-align:top}
td.q{max-width:340px;line-height:1.6}
tr.row-flagged td{background:rgba(248,113,113,.05)}
.v-correct{color:var(--green);font-weight:700}
.v-flagged{color:var(--red);font-weight:700}
.v-mixed{color:var(--amber);font-weight:700}
.votes{font-variant-numeric:tabular-nums}

@media (max-width:600px){
  .topbar{gap:12px;padding:12px 16px}
  .card{padding:18px}
  .q-title{font-size:17px}
}