:root{--bg: #0f172a;--bg2: #1e293b;--card: #ffffff;--ink: #0f172a;--muted: #64748b;--primary: #4f46e5;--true: #16a34a;--false: #e11d48;--ok: #16a34a;--bad: #e11d48}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:linear-gradient(160deg,var(--bg),var(--bg2));color:var(--ink);min-height:100vh}.screen{max-width:480px;margin:0 auto;padding:16px 16px 40px;min-height:100vh;display:flex;flex-direction:column;gap:16px}.topbar{display:flex;align-items:center;justify-content:space-between;color:#e2e8f0;padding:4px 2px}.brand{font-weight:800;letter-spacing:.5px}.brand-logo{height:36px;width:auto;display:block}.screen-centered{justify-content:center}.login-logo{width:100%;max-width:260px;height:auto;align-self:center;margin:2px auto 6px}.splash{min-height:100vh;background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;padding:24px}.splash-logo{width:min(72%,320px);height:auto}.splash-msg{color:var(--muted);font-size:15px;font-weight:600}.tabs{display:flex;gap:4px;background:#ffffff14;padding:3px;border-radius:999px}.tab{border:none;background:transparent;color:#94a3b8;font-size:13px;font-weight:700;padding:5px 14px;border-radius:999px;cursor:pointer}.tab.active{background:var(--primary);color:#fff}.progress{display:flex;flex-direction:column;gap:6px}.progress-bar{height:10px;background:#ffffff26;border-radius:999px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,#22d3ee,#4f46e5);border-radius:999px;transition:width .35s ease}.progress-meta{display:flex;justify-content:space-between;font-size:13px;color:#cbd5e1}.misses{color:#fda4af}.card{background:var(--card);border-radius:20px;padding:24px 20px 22px;box-shadow:0 20px 45px #00000059;display:flex;flex-direction:column;align-items:center;gap:14px}.card.msg{color:var(--muted);font-size:15px}.type-badge{align-self:flex-start;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;padding:4px 10px;border-radius:999px;color:#fff}.type-badge.type-word{background:#6366f1}.type-badge.type-sign{background:#0ea5e9}.item-display{display:flex;flex-direction:column;align-items:center;gap:10px;padding:18px 0 8px;min-height:150px;justify-content:center}.word{font-size:34px;font-weight:800;text-align:center;color:var(--ink)}.count{display:inline-block;margin-left:10px;font-size:.5em;font-weight:800;vertical-align:middle;color:#fff;background:#f59e0b;padding:2px 9px;border-radius:999px}.sign-label .count{font-size:14px}.sign-img{max-width:100%;max-height:240px;object-fit:contain;border-radius:12px;background:#f1f5f9;padding:8px}.prompt{margin:4px 0 0;font-size:17px;font-weight:600}.hint{margin:0 0 4px;font-size:13px;color:var(--muted)}.answers{display:flex;gap:12px;width:100%}.btn{border:none;border-radius:14px;padding:16px 18px;font-size:17px;font-weight:700;cursor:pointer;color:#fff;flex:1;transition:transform .05s ease,filter .15s ease}.btn:active{transform:translateY(1px)}.btn-true{background:var(--true)}.btn-false{background:var(--false)}.btn-primary{background:var(--primary);width:100%}.feedback{display:flex;flex-direction:column;align-items:center;gap:10px;width:100%}.result{font-size:22px;font-weight:800}.result.ok{color:var(--ok)}.result.bad{color:var(--bad)}.correct-answer{margin:0;font-size:15px;color:var(--muted);text-align:center}.exam-figure{margin-bottom:4px}.watermark{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;pointer-events:none;background-repeat:repeat;background-position:center}.exam-timer{align-self:center;display:inline-flex;align-items:center;gap:8px;font-variant-numeric:tabular-nums;font-weight:800;font-size:22px;color:#e2e8f0;background:#ffffff14;border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:6px 18px;letter-spacing:1px}.exam-timer-clock{font-size:18px}.exam-timer.warn{color:#fff;background:var(--bad);border-color:var(--bad);animation:exam-timer-blink 1s steps(2,start) infinite}@keyframes exam-timer-blink{50%{opacity:.45}}.trap-hl{background:#fde047;color:#111827;border-radius:3px;padding:0 3px;font-weight:700;-webkit-box-decoration-break:clone;box-decoration-break:clone}.trap-figure{outline:4px solid #f59e0b;outline-offset:3px;border-radius:12px;box-shadow:0 0 0 3px #fff,0 6px 20px #f59e0b66}.question-text{font-size:17px;line-height:1.5;color:var(--ink);text-align:left;align-self:stretch;margin:6px 0 4px}.traps{font-size:12px;color:var(--muted);margin:0;text-align:center}.pick{text-align:center}.pick h2{margin:0}.pick-list{display:flex;flex-direction:column;gap:10px;width:100%;margin-top:6px}.pick-btn{display:flex;flex-direction:column;gap:2px}.pick-stat{font-size:12px;font-weight:600;opacity:.85}.btn-outline{background:transparent;border:1px solid var(--border, #cbd5e1);color:var(--muted)}.login{text-align:center}.lang-select{align-self:flex-end;display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--muted)}.lang-select select{padding:6px 10px;border-radius:10px;border:1px solid #cbd5e1;background:#fff;color:var(--ink);font-size:14px;font-weight:600}[dir=rtl] .lang-select{align-self:flex-start}.login h2{margin:0 0 2px}.code-input{width:100%;text-align:center;font-size:26px;font-weight:800;letter-spacing:4px;text-transform:uppercase;padding:14px;border-radius:14px;border:2px solid #cbd5e1;background:#fff;color:var(--ink)}.code-input:focus{outline:none;border-color:var(--primary)}.login-error{color:var(--bad);font-size:14px;margin:0}.login-alt{font-size:12px;color:var(--muted);margin:4px 0 0}.soon{opacity:.7}.userbar{display:flex;align-items:center;justify-content:space-between;color:#e2e8f0;font-size:14px;padding:0 2px}.user-name{font-weight:600}.userbar-actions{display:flex;gap:14px;align-items:center}.link-btn,.logout{background:none;border:none;color:#94a3b8;cursor:pointer;font-size:13px;font-weight:600;padding:4px 2px}.link-btn:hover,.logout:hover{color:#e2e8f0}.notice-card{align-items:stretch;text-align:left}.notice-card h2{text-align:center;margin:0 0 4px}.notice{display:flex;flex-direction:column;gap:16px}.notice-block h3{margin:0 0 4px;font-size:16px}.notice-lead{margin:0 0 6px;font-weight:700}.notice-block ul{margin:0;padding-left:18px;display:flex;flex-direction:column;gap:5px}.notice-block li{font-size:14px;line-height:1.45;color:#334155}.accept-check{display:flex;gap:10px;align-items:flex-start;font-size:14px;font-weight:600;cursor:pointer;padding:4px 0}.accept-check input{margin-top:3px;width:18px;height:18px;flex-shrink:0}.admin{max-width:760px}.admin-rule{color:#cbd5e1;font-size:13px;line-height:1.5;margin:0}.admin-table{align-items:stretch;padding:12px;overflow-x:auto}.admin-table table{width:100%;border-collapse:collapse;font-size:14px}.admin-table th,.admin-table td{padding:9px 8px;text-align:left;border-bottom:1px solid #e2e8f0;white-space:nowrap}.admin-table th{font-size:12px;text-transform:uppercase;letter-spacing:.4px;color:var(--muted)}.admin-table tr.row-ready{background:#ecfdf5}.cell-ok{color:var(--ok);font-weight:700}.cell-bad{color:var(--bad);font-weight:700}.badge-ready{background:var(--ok);color:#fff;font-weight:700;font-size:12px;padding:3px 9px;border-radius:999px}.badge-cited{color:var(--primary);font-weight:700;font-size:13px}.btn-cite{background:var(--primary);color:#fff;border:none;border-radius:999px;padding:6px 14px;font-weight:700;font-size:13px;cursor:pointer}.row-actions{display:flex;gap:8px;align-items:center}.btn-recode{background:transparent;color:var(--muted);border:1px solid #cbd5e1;border-radius:999px;padding:6px 12px;font-weight:600;font-size:12px;cursor:pointer}.btn-recode:hover{border-color:var(--primary);color:var(--primary)}.admin-form{align-items:stretch;text-align:left}.admin-form-title{margin:0;text-align:center}.field{display:flex;flex-direction:column;gap:5px;font-size:13px;font-weight:600;color:#334155}.field input,.field select{width:100%;padding:11px 12px;border-radius:12px;border:1px solid #cbd5e1;background:#fff;color:var(--ink);font-size:15px;font-weight:500}.field input:focus,.field select:focus{outline:none;border-color:var(--primary)}.field-row{display:flex;gap:12px}.field-row .field{flex:1}.btn-danger{background:var(--bad);width:100%}.device-info{display:flex;flex-direction:column;gap:10px;background:#f1f5f9;border-radius:12px;padding:14px 16px}.device-row{display:flex;justify-content:space-between;gap:12px;font-size:14px}.device-label{color:var(--muted);font-weight:600}.device-value{color:var(--ink);font-weight:700;text-align:right}.device-ua{margin:4px 0 0;font-size:11px;color:#94a3b8;word-break:break-all;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.device-msg{margin:0;font-size:14px;font-weight:600;color:var(--ok);background:#ecfdf5;border:1px solid #a7f3d0;border-radius:12px;padding:12px 14px}.code-reveal{text-align:center;align-items:stretch}.code-reveal .modal-head{text-align:left}.reveal-name{margin:0;color:var(--muted);font-weight:600}.reveal-code{font-size:36px;font-weight:800;letter-spacing:3px;color:var(--ink);background:#f1f5f9;border:2px dashed #94a3b8;border-radius:14px;padding:18px 12px;-webkit-user-select:all;user-select:all}.reveal-warn{margin:0;font-size:13px;line-height:1.5;color:#92400e;background:#fffbeb;border:1px solid #fde68a;border-radius:12px;padding:12px 14px;text-align:left}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a99;display:flex;align-items:center;justify-content:center;padding:16px;z-index:50}.modal{background:var(--card);border-radius:20px;padding:22px;max-width:480px;width:100%;max-height:85vh;overflow-y:auto;display:flex;flex-direction:column;gap:14px;text-align:left}.modal-head{display:flex;align-items:center;justify-content:space-between}.modal-head h2{margin:0}.modal-close{background:none;border:none;font-size:20px;cursor:pointer;color:var(--muted)}.done{text-align:center}.done-emoji{font-size:48px}.done h2{margin:4px 0}.done p{color:var(--muted);margin:0 0 8px}