*{box-sizing:border-box}body{font-family:system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;margin:0;background:#f3f4f6;color:#1f2937}
.screen{display:none}.screen.on{display:block}
.hero{background:linear-gradient(135deg,#312e81,#4338ca 45%,#6366f1);padding:34px 16px 90px;text-align:center}
.logo-fallback{color:#fff;font-size:26px;font-weight:800;letter-spacing:.5px}
#screen-login .card{max-width:400px;margin:-70px auto 0;background:#fff;border-radius:20px;padding:28px 24px;box-shadow:0 20px 50px rgba(0,0,0,.3)}
#screen-login{min-height:100vh;background:linear-gradient(180deg,#6366f1 0%,#f3f4f6 40%)}
.title{text-align:center;margin:0 0 4px;font-size:20px;font-weight:800;color:#1e1b4b}
.subtitle{text-align:center;margin:0 0 18px;font-size:13px;color:#6b7280}
.netpill{margin:0 auto 16px;padding:6px 14px;border-radius:999px;font-size:12px;font-weight:600;width:max-content;background:#fef3c7;border:1px solid #fde68a;color:#92400e;display:flex;gap:6px}
.field{margin-bottom:14px}.field label{display:block;font-size:12px;font-weight:700;color:#4b5563;margin-bottom:6px;text-transform:uppercase;letter-spacing:.4px}
.input-wrap{position:relative}.input-wrap .icon{position:absolute;left:12px;top:50%;transform:translateY(-50%)}
.input-wrap input{width:100%;padding:12px 12px 12px 40px;border:1.5px solid #d1d5db;border-radius:12px;font-size:15px;background:#f9fafb;outline:none}
.input-wrap input:focus{border-color:#6366f1;background:#fff;box-shadow:0 0 0 3px rgba(99,102,241,.15)}
.toggle-pass{position:absolute;right:10px;top:50%;transform:translateY(-50%);border:0;background:none;cursor:pointer;color:#9ca3af}
.btn{border:0;border-radius:12px;padding:12px 18px;font-size:14px;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn-primary{background:linear-gradient(135deg,#4f46e5,#6366f1);color:#fff;width:100%;margin-top:6px;padding:13px}
.btn-ghost{background:#e5e7eb;color:#374151}.btn-purple{background:#7c3aed;color:#fff}.btn-blue{background:#2563eb;color:#fff}.btn-danger{background:#dc2626;color:#fff}
.wfull{width:100%}
.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;display:none}
.btn.loading .spinner,.btn:disabled .spinner{display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}
.msg{margin:14px 0 0;padding:11px 14px;border-radius:12px;font-size:13px;display:none;text-align:center;line-height:1.5}
.msg.err{display:block;background:#fef2f2;border:1px solid #fecaca;color:#b91c1c}
.msg.info{display:block;background:#eef2ff;border:1px solid #c7d2fe;color:#4338ca}
.msg.ok{display:block;background:#f0fdf4;border:1px solid #bbf7d0;color:#15803d}
.footnote{text-align:center;margin-top:16px;font-size:12px;color:rgba(255,255,255,.8)}
.topbar{position:sticky;top:0;z-index:20;background:#312e81;color:#fff;padding:10px 12px;display:flex;align-items:center;gap:8px;box-shadow:0 2px 10px rgba(0,0,0,.25)}
.topbar .title{font-weight:700;font-size:14px;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.iconbtn{border:0;background:rgba(255,255,255,.12);color:#fff;border-radius:10px;padding:8px 10px;cursor:pointer;font-size:15px}
.timer{font-variant-numeric:tabular-nums;font-weight:800;background:rgba(255,255,255,.12);border-radius:10px;padding:6px 12px}
.timer.warn{background:#92400e}.timer.crit{background:#b91c1c}
.badge{display:inline-block;background:#eef2ff;color:#4338ca;border:1px solid #c7d2fe;border-radius:999px;padding:4px 12px;font-size:12px;font-weight:700}
.wrap{max-width:760px;margin:14px auto 50px;padding:0 12px}
.welcome{background:#fff;border:1px solid #e5e7eb;border-radius:16px;padding:14px 16px;margin-bottom:14px}
.welcome-in{display:flex;gap:12px;align-items:center}
.avatar{width:46px;height:46px;border-radius:50%;background:#eef2ff;display:flex;align-items:center;justify-content:center;font-size:22px}
.hello{font-size:11px;font-weight:700;color:#6366f1;text-transform:uppercase;letter-spacing:.4px}
.name{font-size:18px;font-weight:800;color:#1e1b4b}.nisn{font-size:12px;color:#6b7280}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.card{background:#fff;border:1px solid #e5e7eb;border-radius:16px;padding:16px;margin-bottom:14px;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.cardhead{border-bottom:1px solid #eef2ff;padding-bottom:10px;margin-bottom:10px}
.cardhead h3,.cardhead h4{margin:0;color:#1e1b4b}
.desc{font-size:13px;color:#6b7280;margin:6px 0 0}
.mini{display:flex;gap:10px;margin:12px 0}.mini>div{flex:1;background:#f9fafb;border:1px solid #e5e7eb;border-radius:10px;padding:8px 10px;font-size:12px;color:#6b7280;display:flex;flex-direction:column}
.mini b{font-size:17px;color:#4f46e5}
.sech{font-size:13px;font-weight:800;color:#374151;margin:12px 0 8px}
.item{border:1px solid #e5e7eb;border-radius:12px;padding:12px;margin-bottom:10px}
.item.purple{border-color:#ddd6fe;background:#faf5ff}
.itemtitle{font-weight:700;margin:0 0 6px}
.matcontent{font-size:14px;color:#4b5563;white-space:pre-line;line-height:1.7;overflow-x:auto;overflow-wrap:anywhere}
.box{background:#f9fafb;border:1px solid #e5e7eb;border-radius:12px;padding:12px}
.hint{font-size:12px;color:#9ca3af}
.hintpdf{font-size:12px;color:#92400e;background:#fef3c7;border:1px solid #fde68a;border-radius:8px;padding:6px 8px;margin-top:8px}
.linkbtn{font-size:13px;font-weight:700;color:#4f46e5}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}
.chip{background:#fff;border:1px solid #ddd6fe;border-radius:8px;padding:4px 9px;font-size:11px;font-weight:700;color:#6d28d9}
.chip.green{background:#f0fdf4;border-color:#bbf7d0;color:#15803d}
.banner{border-radius:12px;padding:12px 14px;font-size:13px;margin-bottom:12px}
.banner.gray{background:#f9fafb;border:1px solid #e5e7eb;color:#6b7280}
.banner.green{background:#f0fdf4;border:1px solid #bbf7d0;color:#15803d}
.banner.yellow{background:#fffbeb;border:1px solid #fde68a;color:#92400e}
.banner.blue{background:#eff6ff;border:1px solid #bfdbfe;color:#1d4ed8}
.scoreline{font-size:18px;margin-top:6px}.fb{margin-top:8px;background:#fff;border:1px solid #bbf7d0;border-radius:10px;padding:8px 10px;white-space:pre-line}
.empty{text-align:center;padding:40px 16px}.empty .big{font-size:44px}
.ptitle{font-size:22px;color:#4c1d95;margin:0 0 10px}
.backbtn{margin-bottom:12px}
.cbtbox{background:#fff7ed;border:1px solid #fed7aa;border-radius:14px;padding:14px}
.answerbox{background:#eef2ff;border:1px solid #c7d2fe;border-radius:14px;padding:14px}
.answerbox textarea{width:100%;min-height:120px;border:1.5px solid #d1d5db;border-radius:12px;padding:12px;font-size:15px;font-family:inherit;resize:vertical;outline:none}
.savebtn{display:flex;justify-content:flex-end;margin-top:10px}
.cbtbox h4,.answerbox h4{margin:0 0 8px}
.opt{display:flex;gap:10px;width:100%;text-align:left;border:1.5px solid #d1d5db;border-radius:12px;padding:12px;margin-bottom:8px;background:#fff;cursor:pointer;font-size:15px;line-height:1.5}
.opt.sel{border-color:#4f46e5;background:#eef2ff}
.opt .key{font-weight:800;color:#4f46e5;min-width:20px}
.answerta{width:100%;min-height:120px;border:1.5px solid #d1d5db;border-radius:12px;padding:12px;font-size:15px;font-family:inherit;resize:vertical;outline:none}
.qmeta{font-size:12px;font-weight:700;color:#6b7280;text-transform:uppercase;margin-bottom:8px}
.qtext{font-size:16px;line-height:1.7;margin-bottom:14px;white-space:pre-line}
.navgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(38px,1fr));gap:6px}
.navbtn{height:38px;border-radius:9px;border:1.5px solid #d1d5db;background:#fff;font-weight:700;cursor:pointer}
.navbtn.active{border-color:#4f46e5;background:#eef2ff;color:#4338ca}
.navbtn.filled{background:#4f46e5;color:#fff}
.rowbtn{display:flex;justify-content:space-between;margin-top:12px}
.savenote{text-align:right;font-size:11px;color:#9ca3af;margin:6px 0 0}
.center{text-align:center}.scorebig{font-size:50px;font-weight:800;color:#4338ca;margin:8px 0}
.perq{list-style:none;padding:0;text-align:left;font-size:13px}.perq li{padding:5px 0;border-bottom:1px dashed #e5e7eb}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:18px;background:#1e1b4b;color:#fff;border-radius:12px;padding:10px 16px;font-size:13px;opacity:0;pointer-events:none;transition:opacity .2s;z-index:50}
.toast.show{opacity:.95}.toast.ok{background:#15803d}