:root{--primary:#0d9488;--primary-dark:#0f766e;--primary-deep:#115e59;--accent:#06b6d4;--teal-50:#f0fdfa;--teal-100:#ccfbf1;--teal-200:#99f6e4;--success:#16a34a;--success-bg:#f0fdf4;--danger:#dc2626;--danger-bg:#fef2f2;--warning:#d97706;--text:#1e293b;--text-light:#64748b;--card:#fff;--radius:16px;--shadow:0 8px 30px rgba(13,148,136,.12)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(160deg,var(--teal-50) 0%,#e6fffa 50%,#f0f9ff 100%);min-height:100vh;color:var(--text);line-height:1.6}.container{max-width:860px;margin:0 auto;padding:20px}.header{text-align:center;padding:40px 25px 35px;background:linear-gradient(135deg,var(--primary-dark),var(--primary) 60%,var(--accent));color:#fff;border-radius:0 0 28px 28px;margin-bottom:28px;position:relative;overflow:hidden}.header::before{content:'';position:absolute;top:-60%;left:-40%;width:180%;height:220%;background:radial-gradient(circle,rgba(255,255,255,.12) 0%,transparent 60%);animation:drift 10s ease-in-out infinite}@keyframes drift{0%,100%{transform:translate(0,0)}50%{transform:translate(25px,15px)}}.header .icon{font-size:3rem;display:block;margin-bottom:12px;position:relative;z-index:1}.header h1{font-size:1.6rem;margin-bottom:10px;position:relative;z-index:1;line-height:1.4}.header .subtitle{font-size:.95rem;opacity:.92;max-width:620px;margin:0 auto;position:relative;z-index:1}.header .badge{display:inline-block;margin-top:14px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.35);padding:6px 18px;border-radius:20px;font-size:.85rem;font-weight:600;position:relative;z-index:1}.progress-container{background:var(--card);border-radius:var(--radius);padding:18px 22px;margin-bottom:22px;box-shadow:var(--shadow)}.progress-info{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;font-size:.9rem}.progress-info .label{font-weight:700;color:var(--primary-dark)}.progress-info .counter{font-weight:700;color:var(--text-light)}.progress-bar{height:10px;background:var(--teal-100);border-radius:10px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:10px;transition:width .5s cubic-bezier(.4,0,.2,1);width:0%}.card{background:var(--card);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);margin-bottom:20px;animation:fadeUp .4s ease}@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}.hidden{display:none!important}.welcome{text-align:center}.welcome h2{font-size:1.4rem;color:var(--primary-deep);margin-bottom:14px}.welcome p{color:var(--text-light);max-width:580px;margin:0 auto 18px}.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin:25px 0;text-align:left}.info-item{background:var(--teal-50);border:1px solid var(--teal-200);border-radius:12px;padding:16px}.info-item .num{font-size:1.5rem;font-weight:800;color:var(--primary)}.info-item .desc{font-size:.82rem;color:var(--text-light);margin-top:3px}.rules-box{background:#fffbeb;border:1px solid #fde68a;border-radius:12px;padding:16px 20px;text-align:left;font-size:.9rem;margin-bottom:25px}.rules-box strong{color:var(--warning)}.rules-box ul{margin:8px 0 0 20px}.rules-box li{margin-bottom:4px}.q-meta{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}.q-number{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;min-width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1rem;padding:0 8px}.q-type-badge{font-size:.75rem;font-weight:700;padding:4px 12px;border-radius:20px;background:var(--teal-100);color:var(--primary-dark)}.q-text{font-size:1.1rem;font-weight:600;margin-bottom:22px;line-height:1.65}.options{display:flex;flex-direction:column;gap:11px}.option{display:flex;align-items:flex-start;gap:13px;padding:15px 18px;border:2px solid #e2e8f0;border-radius:12px;background:#fafcfd;cursor:pointer;transition:all .2s ease;text-align:left;font-size:.95rem;line-height:1.5;width:100%}.option:hover:not(.locked){border-color:var(--primary);background:var(--teal-50);transform:translateX(4px)}.option .marker{flex-shrink:0;width:32px;height:32px;border-radius:50%;border:2px solid #cbd5e1;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.85rem;color:var(--text-light);transition:all .2s ease}.option.selected{border-color:var(--primary);background:var(--teal-50)}.option.selected .marker{background:var(--primary);border-color:var(--primary);color:#fff}.option.locked{cursor:default}.option.correct-answer{border-color:var(--success);background:var(--success-bg)}.option.correct-answer .marker{background:var(--success);border-color:var(--success);color:#fff}.option.wrong-answer{border-color:var(--danger);background:var(--danger-bg)}.option.wrong-answer .marker{background:var(--danger);border-color:var(--danger);color:#fff}.feedback{margin-top:20px;padding:18px 20px;border-radius:12px;animation:fadeUp .35s ease}.feedback.ok{background:var(--success-bg);border-left:4px solid var(--success)}.feedback.bad{background:var(--danger-bg);border-left:4px solid var(--danger)}.feedback .verdict{font-weight:800;font-size:1rem;margin-bottom:8px}.feedback.ok .verdict{color:var(--success)}.feedback.bad .verdict{color:var(--danger)}.feedback .basis{font-size:.9rem;color:var(--text);line-height:1.6}.feedback .basis .tag{display:inline-block;font-size:.75rem;font-weight:700;color:var(--primary-dark);background:var(--teal-100);padding:2px 10px;border-radius:12px;margin-bottom:6px}.nav-container{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}.nav-btn{padding:14px 30px;border:0;border-radius:12px;font-size:1rem;font-weight:700;cursor:pointer;transition:all .25s ease}.nav-btn:disabled{opacity:.4;cursor:not-allowed;transform:none!important}.btn-back{background:#e2e8f0;color:var(--text-light)}.btn-back:hover:not(:disabled){background:#cbd5e1;transform:translateX(-3px)}.btn-next{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;margin-left:auto;box-shadow:0 4px 14px rgba(13,148,136,.3)}.btn-next:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px rgba(13,148,136,.4)}.btn-start{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;padding:17px 50px;font-size:1.1rem;border-radius:14px;border:0;cursor:pointer;font-weight:800;box-shadow:0 8px 25px rgba(13,148,136,.35);transition:all .3s ease}.btn-start:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(13,148,136,.45)}.btn-confirm{margin-top:18px;width:100%;padding:14px;background:var(--teal-100);border:2px solid var(--primary);color:var(--primary-dark);border-radius:12px;font-size:1rem;font-weight:700;cursor:pointer;transition:all .2s ease}.btn-confirm:hover:not(:disabled){background:var(--teal-200)}.btn-confirm:disabled{opacity:.5;cursor:not-allowed}.result-hero{text-align:center;padding:10px 0 25px}.score-ring{position:relative;width:170px;height:170px;margin:0 auto 20px}.score-ring svg{transform:rotate(-90deg)}.score-ring .ring-bg{fill:none;stroke:var(--teal-100);stroke-width:14}.score-ring .ring-fill{fill:none;stroke:url(./#gradRing);stroke-width:14;stroke-linecap:round;transition:stroke-dashoffset 1.2s cubic-bezier(.4,0,.2,1)}.score-center{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center}.score-center .big{font-size:2.1rem;font-weight:800;color:var(--primary-deep);line-height:1}.score-center .small{font-size:.8rem;color:var(--text-light);margin-top:4px}.result-hero .emoji{font-size:2.8rem;margin-bottom:8px}.result-hero h2{color:var(--primary-deep);font-size:1.45rem;margin-bottom:8px}.result-hero p{color:var(--text-light);max-width:560px;margin:0 auto}.cat-section h3{font-size:1.1rem;color:var(--primary-deep);margin-bottom:16px;display:flex;align-items:center;gap:8px}.cat-row{margin-bottom:16px}.cat-row .cat-head{display:flex;justify-content:space-between;font-size:.88rem;margin-bottom:6px}.cat-row .cat-name{font-weight:600}.cat-row .cat-score{font-weight:800;color:var(--primary-dark)}.cat-bar{height:9px;background:var(--teal-100);border-radius:9px;overflow:hidden}.cat-fill{height:100%;border-radius:9px;transition:width 1s ease}.restart-wrap{text-align:center;margin-top:10px}@media(max-width:620px){.header h1{font-size:1.25rem}.card{padding:22px 18px}.q-text{font-size:1rem}.option{font-size:.88rem;padding:13px 14px}.nav-btn{width:100%;text-align:center;justify-content:center}.btn-next{margin-left:0}}