@import"https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&display=swap";:root{--bg: #f4f7fc;--surface: #ffffff;--text: #0f172a;--muted: #64748b;--primary: #2563eb;--primary-dark: #1d4ed8;--accent: #0ea5e9;--border: #e2e8f0;--danger: #dc2626;--success: #16a34a;--shadow: 0 12px 40px rgba(15, 23, 42, .08);--radius: 16px}*{box-sizing:border-box}body{margin:0;font-family:Manrope,system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.container{width:min(1120px,92vw);margin:0 auto}.btn{border:none;border-radius:12px;padding:12px 20px;font-weight:700;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease}.btn:hover{transform:translateY(-1px)}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;box-shadow:0 8px 24px #2563eb59}.btn-secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}.btn-ghost{background:transparent;color:var(--primary);border:1px solid transparent}.input,.select,.textarea{width:100%;border:1px solid var(--border);border-radius:12px;padding:12px 14px;font:inherit;background:#fff}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}.muted{color:var(--muted)}.error-text{color:#c62828}.badge{display:inline-block;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:700;background:#eff6ff;color:var(--primary)}.nav{display:flex;align-items:center;justify-content:space-between;padding:20px 0}.nav-brand{font-size:22px;font-weight:800;color:var(--text);text-decoration:none}.nav-links{display:flex;gap:12px;align-items:center}.hero{padding:72px 0 48px;display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center}.hero h1{font-size:clamp(32px,5vw,52px);line-height:1.1;margin:0 0 16px}.hero-panel{background:linear-gradient(160deg,#1e3a8a,#2563eb 45%,#0ea5e9);color:#fff;border-radius:24px;padding:28px;box-shadow:var(--shadow)}.hero-panel .link-btn{border:none;background:none;padding:0;font:inherit;font-weight:700;color:#fff;text-decoration:underline;cursor:pointer}.hero-panel .link-btn:hover{opacity:.9}.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.tab{padding:10px 16px;border-radius:999px;border:1px solid var(--border);background:#fff;cursor:pointer;font-weight:600}.tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.test-list{display:grid;gap:12px}.test-item{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px;border:1px solid var(--border);border-radius:12px;background:#fff}.question-card{border:1px solid var(--border);border-radius:12px;padding:16px;margin-bottom:12px;background:#fff}.choices{display:grid;gap:8px}.choice{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--border);border-radius:10px;cursor:pointer}.choice:has(input:checked){border-color:var(--primary);background:#eff6ff}.mistake-card{border:1px solid #fecaca;background:#fff5f5;border-radius:12px;padding:16px}.watermark{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;display:flex;align-items:center;justify-content:center;opacity:.06;font-size:48px;font-weight:800;transform:rotate(-18deg);z-index:0}.test-layout{position:relative;z-index:1}.btn-sm{padding:6px 12px;font-size:13px}.btn-danger{background:#fef2f2;color:var(--danger);border:1px solid #fecaca}.btn-danger:hover{background:#fee2e2}.admin-list{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:8px}.admin-list-item{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px;border:1px solid var(--border);border-radius:12px;background:#f8fafc}.admin-list-item-col{flex-direction:column;align-items:stretch}.admin-list-edit{display:grid;gap:8px;width:100%}.admin-list-actions{display:flex;gap:6px;flex-shrink:0;flex-wrap:wrap}.toast{position:fixed;top:20px;right:20px;z-index:1000;display:flex;align-items:center;gap:12px;max-width:min(420px,calc(100vw - 40px));padding:14px 16px;border-radius:12px;box-shadow:0 16px 40px #0f172a2e;animation:toast-in .25s ease}.toast-success{background:#ecfdf3;border:1px solid #bbf7d0;color:#166534}.toast-error{background:#fef2f2;border:1px solid #fecaca;color:#991b1b}.toast-close{border:none;background:transparent;font-size:20px;line-height:1;cursor:pointer;color:inherit;opacity:.7;padding:0 4px}.toast-close:hover{opacity:1}@keyframes toast-in{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.paywall-plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:20px}.paywall-price{font-size:28px;font-weight:800;margin:8px 0}.paywall-compact h2{font-size:1.25rem}.cabinet-sub-cta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-bottom:20px}.subscribe-cta-card{text-align:center;padding:8px 0}.subscribe-layout{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px;align-items:start}@media (max-width: 800px){.subscribe-layout{grid-template-columns:1fr}}.subscribe-plans{display:grid;gap:12px}.subscribe-plan-option{display:flex;gap:12px;align-items:flex-start;padding:14px 16px;border:2px solid var(--border);border-radius:12px;cursor:pointer;transition:border-color .15s ease,background .15s ease}.subscribe-plan-option--active{border-color:var(--primary);background:#eff6ff}.subscribe-plan-option input{margin-top:4px}.subscribe-summary{display:grid;grid-template-columns:auto 1fr;gap:8px 16px;margin:0 0 16px}.subscribe-summary dt{color:var(--muted);font-weight:600}.subscribe-summary dd{margin:0;text-align:right}.subscribe-summary-total{font-size:22px;font-weight:800;color:var(--primary-dark)}.subscribe-stub-note{font-size:14px;color:var(--muted);background:#f8fafc;border-radius:10px;padding:12px 14px;margin-bottom:16px;line-height:1.5}.sub-active-badge{display:inline-block;padding:8px 14px;border-radius:999px;background:#ecfdf3;color:#166534;font-weight:600;margin-bottom:16px}.demo-banner{background:#eff6ff;color:var(--primary-dark);padding:10px 14px;border-radius:12px;font-weight:600;margin-bottom:16px}.demo-card{display:flex;flex-direction:column}.result-list{list-style:none;margin:20px 0 0;padding:0;display:grid;gap:10px}.result-item{border-radius:12px;padding:14px 16px;border:1px solid var(--border)}.result-item--ok{background:#ecfdf3;border-color:#bbf7d0}.result-item--bad{background:#fef2f2;border-color:#fecaca}.result-item-head{display:flex;gap:10px;align-items:flex-start;margin-bottom:8px}.result-item-num{flex-shrink:0;width:28px;height:28px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:13px}.result-item--ok .result-item-num{background:#16a34a;color:#fff}.result-item--bad .result-item-num{background:#dc2626;color:#fff}.result-item-answer{margin:0;font-size:15px}.result-item-kind{color:var(--muted);font-weight:500}.result-item-explanation{margin:10px 0 0;font-size:14px;line-height:1.55;color:#7f1d1d}@media (max-width: 900px){.hero{grid-template-columns:1fr}.toast{left:20px;right:20px}}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;z-index:-1;background:radial-gradient(circle at 12% 10%,rgba(37,99,235,.16),transparent 28%),radial-gradient(circle at 88% 12%,rgba(14,165,233,.14),transparent 24%),linear-gradient(180deg,#f8fbff,#eef5ff 45%,#f8fafc)}.nav{position:sticky;top:0;z-index:20;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#f4f7fcc7;border-bottom:1px solid rgba(226,232,240,.75)}.nav-brand{display:inline-flex;align-items:center;gap:10px}.nav-brand:before{content:"";width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--accent));box-shadow:0 10px 28px #2563eb47}.card,.question-card,.test-item,.admin-list-item{transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}.card:hover,.question-card:hover,.test-item:hover{transform:translateY(-2px);border-color:#bfdbfe;box-shadow:0 18px 52px #2563eb1f}.hero{min-height:calc(100vh - 96px)}.hero h1{letter-spacing:-.04em}.hero-panel{position:relative;overflow:hidden}.hero-panel:after{content:"";position:absolute;right:-80px;top:-80px;width:220px;height:220px;border-radius:999px;background:#ffffff2e}.btn:disabled{cursor:not-allowed;opacity:.65;transform:none;box-shadow:none}.btn-primary:hover{box-shadow:0 14px 34px #2563eb6b;text-decoration:none}.btn-secondary:hover{border-color:#bfdbfe;color:var(--primary-dark);text-decoration:none}.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px #2563eb1f}.test-progress-card{display:grid;grid-template-columns:minmax(180px,auto) 1fr;align-items:center;gap:20px;padding:18px 20px;margin:0 0 18px;border:1px solid var(--border);border-radius:var(--radius);background:#ffffffe6;box-shadow:var(--shadow)}.progress-bar{height:12px;overflow:hidden;border-radius:999px;background:#e2e8f0}.progress-bar span{display:block;height:100%;border-radius:inherit;background:linear-gradient(135deg,var(--primary),var(--accent));transition:width .2s ease}.answer-input{max-width:520px}.checkbox-line{display:inline-flex;align-items:center;gap:10px;color:var(--muted);font-weight:600}.admin-generate-card{display:grid;grid-template-columns:minmax(260px,.75fr) 1.25fr;gap:24px;align-items:end;background:linear-gradient(135deg,#fff,#eff6ff)}.admin-generate-form{display:grid;grid-template-columns:1fr 1fr 120px;gap:12px;align-items:center}.admin-generate-form .checkbox-line,.admin-generate-form .btn{grid-column:span 1}.question-card h3{line-height:1.35}.choice{background:#fff}.choice:hover{border-color:#bfdbfe;background:#f8fbff}.result-item-head strong{line-height:1.4}@media (max-width: 900px){.nav{position:static;flex-direction:column;align-items:flex-start;gap:12px}.nav-links{width:100%;flex-wrap:wrap}.test-progress-card,.admin-generate-card,.admin-generate-form{grid-template-columns:1fr}}.prompt-images{display:flex;flex-wrap:wrap;gap:12px;margin:12px 0}.prompt-image{max-width:100%;max-height:400px;border-radius:8px;border:1px solid #e0e0e0}.choice-content{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.choice-image{max-width:200px;max-height:200px;border-radius:6px;border:1px solid #e0e0e0}