*{box-sizing:border-box}html{text-rendering:optimizelegibility;background:#f5f7f9;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}body{min-width:320px;min-height:100vh;margin:0}button,input,textarea,select{font:inherit}button:focus-visible,input:focus-visible{outline-offset:2px;outline:2px solid #17212b}#root{min-height:100vh}.app{color:#17212b;background:#f5f7f9;min-height:100vh}.app-header{z-index:20;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#fffffff5;border-bottom:1px solid #e2e7eb;align-items:center;gap:24px;height:76px;padding:0 32px;display:flex;position:sticky;top:0}.brand{min-width:190px;color:inherit;cursor:pointer;text-align:left;background:0 0;border:0;align-items:center;gap:10px;padding:0;display:flex}.brand-mark{color:#fff;background:#17212b;border-radius:11px;place-items:center;width:38px;height:38px;font-size:19px;font-weight:700;display:grid}.brand-text{flex-direction:column;line-height:1;display:flex}.brand-text strong{letter-spacing:-.02em;font-size:16px}.brand-text span{color:#7c8791;letter-spacing:.18em;margin-top:4px;font-size:9px}.main-navigation{flex:1;align-items:center;gap:2px;height:100%;display:flex;overflow-x:auto}.nav-button,.settings-button{cursor:pointer;font:inherit;background:0 0;border:0}.nav-button{color:#68737d;white-space:nowrap;height:100%;padding:0 13px;font-size:13px;font-weight:550;position:relative}.nav-button:hover,.nav-button.active{color:#17212b}.nav-button.active:after{content:"";background:#17212b;border-radius:3px 3px 0 0;height:3px;position:absolute;bottom:0;left:13px;right:13px}.header-status{color:#7c8791;white-space:nowrap;align-items:center;gap:7px;font-size:11px;display:flex}.sync-dot{background:#aeb6bd;border-radius:50%;width:7px;height:7px;display:inline-block}.sync-synced{background:#4f9a68}.sync-syncing,.sync-connecting{background:#d3a53d}.sync-offline,.sync-error{background:#d15a5a}.sync-local{background:#aeb6bd}.settings-button{color:#68737d;border-radius:10px;flex:none;width:40px;height:40px;font-size:20px}.settings-button:hover,.settings-button.active{color:#17212b;background:#f1f3f5}.main-content{max-width:1180px;margin:0 auto;padding:52px 32px 90px}.page-heading{margin-bottom:34px}.eyebrow{color:#8a949d;letter-spacing:.16em;margin-bottom:9px;font-size:10px;font-weight:750;display:block}.page-heading h1,.page-heading h2{letter-spacing:-.035em;margin:0;font-weight:680;line-height:1.13}.page-heading h1{font-size:34px}.page-heading h2{font-size:24px}.page-heading p{color:#75808a;max-width:650px;margin:10px 0 0;font-size:15px;line-height:1.6}.hero-panel{background:linear-gradient(135deg,#fff 0%,#f8fafb 100%);border:1px solid #dfe5e9;border-radius:20px;justify-content:space-between;align-items:center;min-height:270px;margin-bottom:58px;padding:42px 48px;display:flex;overflow:hidden;box-shadow:0 18px 50px #17212b0d}.hero-copy{max-width:720px}.hero-copy h1{letter-spacing:-.045em;max-width:700px;margin:0;font-size:42px;line-height:1.05}.hero-copy p{color:#68737d;max-width:620px;margin:17px 0 0;font-size:16px;line-height:1.7}.hero-mark{color:#fff;background:#17212b;border:1px solid #dce2e6;border-radius:40px;flex:none;place-items:center;width:170px;height:170px;font-size:76px;font-weight:700;display:grid;transform:rotate(5deg);box-shadow:0 25px 55px #17212b2e}.home-heading{margin-bottom:22px}.licence-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.licence-card{color:#17212b;cursor:pointer;text-align:left;background:#fff;border:1px solid #dfe5e9;border-radius:15px;justify-content:space-between;align-items:center;min-height:135px;padding:28px;transition:transform .15s,border-color .15s,box-shadow .15s;display:flex}.licence-card:hover{border-color:#cbd2d8;transform:translateY(-2px);box-shadow:0 12px 30px #17212b12}.licence-card-kicker{color:#8a949d;letter-spacing:.15em;margin-bottom:8px;font-size:9px;font-weight:750;display:block}.licence-card-title{font-size:21px;font-weight:680;display:block}.licence-card-arrow{color:#7d8790;font-size:23px}.dashboard-heading{justify-content:space-between;align-items:flex-end;gap:30px;display:flex}.dashboard-score{text-align:right;background:#fff;border:1px solid #e0e5e9;border-radius:14px;min-width:170px;padding:18px 20px}.dashboard-score span{color:#8a949d;letter-spacing:.15em;font-size:9px;font-weight:750;display:block}.dashboard-score strong{margin-top:5px;font-size:32px;line-height:1;display:block}.dashboard-score small{color:#7b858e;margin-top:6px;font-size:11px;display:block}.progress-card{background:#fff;border:1px solid #e0e5e9;border-radius:15px;margin-bottom:26px;padding:26px;box-shadow:0 8px 28px #17212b06}.section-heading{justify-content:space-between;align-items:center;gap:20px;display:flex}.section-heading h2{letter-spacing:-.02em;margin:0;font-size:20px}.total-question-count{color:#7c8791;font-size:12px}.progress-bars{grid-template-columns:repeat(4,1fr);gap:20px;margin-top:25px;display:grid}.progress-item-header{color:#69747e;justify-content:space-between;gap:12px;margin-bottom:8px;font-size:12px;display:flex}.progress-item-header strong{color:#17212b}.progress-track{background:#edf0f2;border-radius:999px;height:8px;overflow:hidden}.progress-fill{border-radius:inherit;height:100%}.progress-grey{background:#aeb6bd}.progress-red{background:#d15a5a}.progress-yellow{background:#d3a53d}.progress-green{background:#4f9a68}.progress-item small{color:#9aa3aa;margin-top:6px;font-size:10px;display:block}.dashboard-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.dashboard-action{color:#17212b;cursor:pointer;text-align:left;background:#fff;border:1px solid #e0e5e9;border-radius:15px;align-items:center;gap:18px;min-height:112px;padding:22px;transition:transform .15s,border-color .15s,box-shadow .15s;display:flex}.dashboard-action:hover{border-color:#cbd2d8;transform:translateY(-2px);box-shadow:0 12px 30px #17212b0f}.action-icon{background:#f1f3f5;border-radius:11px;flex:none;place-items:center;width:42px;height:42px;font-size:18px;display:grid}.action-content{flex-direction:column;flex:1;gap:5px;display:flex}.action-content strong{font-size:15px}.action-content span{color:#7a858e;font-size:12px;line-height:1.45}.action-arrow{color:#7d8790;font-size:20px}.back-button{color:#69747e;cursor:pointer;background:0 0;border:0;margin-bottom:25px;padding:0;font-size:12px}.back-button:hover{color:#17212b}.search-box{background:#fff;border:1px solid #dfe5e9;border-radius:12px;align-items:center;gap:10px;margin-bottom:16px;padding:0 15px;display:flex}.search-box>span{color:#8a949d;font-size:20px}.search-box input{color:#17212b;background:0 0;border:0;outline:0;width:100%;height:52px}.search-box button{color:#7c8791;cursor:pointer;background:0 0;border:0;font-size:20px}.search-result-header{color:#8a949d;margin:12px 0;font-size:11px}.search-results{gap:8px;display:grid}.search-result{background:#fff;border:1px solid #e0e5e9;border-radius:12px;overflow:hidden}.search-result.selected{border-color:#cbd2d8}.search-result-main{color:#17212b;cursor:pointer;text-align:left;background:0 0;border:0;justify-content:space-between;align-items:center;gap:20px;width:100%;padding:18px 20px;display:flex}.search-result-main>span:first-child{flex-direction:column;gap:5px;display:flex}.search-result-main strong{font-size:14px}.search-result-main small{color:#8a949d;font-size:11px}.result-category{color:#8a949d;letter-spacing:.12em;text-transform:uppercase;font-size:9px;font-weight:750}.search-result-detail{grid-template-columns:1.3fr .7fr;gap:22px;padding:0 20px 20px;display:grid}.search-answers{gap:7px;display:grid}.search-answer{border:1px solid #e7ebee;border-radius:9px;gap:10px;padding:11px 13px;font-size:12px;display:flex}.search-answer.correct{background:#f2f8f4;border-color:#a8cdb3}.search-detail-actions{flex-direction:column;gap:12px;display:flex}.search-hint{background:#f5f7f9;border-radius:10px;padding:14px}.search-hint strong{font-size:11px}.search-hint p{color:#68737d;margin:6px 0 0;font-size:12px;line-height:1.55}.empty-search{color:#7c8791;text-align:center;background:#fff;border:1px dashed #cfd6db;border-radius:12px;padding:50px}.primary-action,.secondary-action,.danger-button{cursor:pointer;border-radius:9px;min-height:42px;padding:0 17px;font-weight:650}.primary-action{color:#fff;background:#17212b;border:1px solid #17212b}.primary-action:disabled{opacity:.4;cursor:not-allowed}.secondary-action{color:#17212b;background:#fff;border:1px solid #d9dfe3}.danger-button{color:#b34444;background:#fff;border:1px solid #e0b0b0}.settings-description{color:#75808a;font-size:13px;line-height:1.6}.settings-stat-grid{grid-template-columns:repeat(3,1fr);gap:10px;margin-top:20px;display:grid}.settings-stat{background:#fafbfc;border:1px solid #e7ebee;border-radius:10px;padding:18px}.settings-stat span{color:#8a949d;font-size:11px;display:block}.settings-stat strong{margin-top:6px;font-size:21px;display:block}.sync-status-card{background:#fafbfc;border:1px solid #e7ebee;border-radius:10px;align-items:flex-start;gap:12px;margin-top:20px;padding:17px;display:flex}.sync-status-card strong{font-size:13px}.sync-status-card p{color:#75808a;margin:5px 0 0;font-size:12px;line-height:1.55}.sync-form{flex-wrap:wrap;gap:10px;margin-top:18px;display:flex}.sync-code-input{box-sizing:border-box;min-width:0;font:inherit;color:#17212b;background:#fff;border:1px solid #d9dee5;border-radius:8px;flex:220px;padding:12px 13px}.sync-code-info{color:#5d6975;margin-top:12px;font-size:12px;line-height:1.5}.sync-code-info strong{color:#17212b}.exam-start-card,.exam-result-card,.exam-question-card{background:#fff;border:1px solid #e0e5e9;border-radius:15px;padding:30px}.exam-start-card{max-width:700px}.exam-start-card h2{margin:0;font-size:22px}.exam-start-card p{color:#75808a;font-size:13px;line-height:1.6}.exam-picker-list{grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:12px;margin:22px 0 18px;display:grid}.exam-picker-card{color:#17212b;cursor:pointer;text-align:left;background:#fafbfc;border:1px solid #dfe5e9;border-radius:12px;flex-direction:column;align-items:flex-start;gap:8px;min-height:110px;padding:16px 14px;transition:transform .15s,border-color .15s,box-shadow .15s;display:flex}.exam-picker-card:hover{border-color:#cbd2d8;transform:translateY(-1px);box-shadow:0 10px 22px #17212b0d}.exam-picker-card.active{color:#fff;background:#17212b;border-color:#17212b;box-shadow:0 12px 24px #17212b1f}.exam-picker-kicker{color:inherit;opacity:.75;letter-spacing:.15em;text-transform:uppercase;font-size:9px;font-weight:750;display:block}.exam-picker-card strong{letter-spacing:-.04em;font-size:30px;line-height:1}.exam-picker-card small{color:inherit;opacity:.85;font-size:11px}.exam-setting-row,.exam-info-row{border-top:1px solid #edf0f2;justify-content:space-between;align-items:center;gap:20px;padding:17px 0;font-size:13px;display:flex}.exam-count-options{gap:7px;display:flex}.exam-count{cursor:pointer;background:#fff;border:1px solid #dfe5e9;border-radius:8px;width:50px;height:38px}.exam-count.active{color:#fff;background:#17212b;border-color:#17212b}.exam-start-card .primary-action{margin-top:20px}.exam-header{justify-content:space-between;align-items:center;gap:20px;margin-bottom:24px;display:flex}.exam-header h1{margin:0;font-size:27px}.exam-timer{font-variant-numeric:tabular-nums;background:#fff;border:1px solid #dfe5e9;border-radius:10px;padding:12px 16px;font-weight:700}.exam-question-card h2{max-width:850px;margin:20px 0 28px;font-size:25px;line-height:1.35}.answer-list{gap:9px;display:grid}.answer-button{color:#17212b;cursor:pointer;text-align:left;background:#fff;border:1px solid #dfe5e9;border-radius:10px;align-items:center;gap:13px;width:100%;padding:14px;display:flex}.answer-button:hover{border-color:#bfc8ce}.answer-button.selected{background:#f1f3f5;border-color:#17212b}.answer-letter{border:1px solid #dfe5e9;border-radius:8px;flex:none;place-items:center;width:31px;height:31px;font-size:12px;font-weight:700;display:grid}.question-navigation button{color:#17212b;cursor:pointer;background:0 0;border:0;padding:9px 12px;font-weight:650}.question-navigation button:disabled{opacity:.3;cursor:not-allowed}.exam-result-card{text-align:center;max-width:620px}.exam-result-number{letter-spacing:-.05em;margin:18px 0 5px;font-size:64px;font-weight:720}.exam-result-number span{color:#8a949d;font-size:28px}.exam-result-card>p{color:#75808a}.exam-result-actions{justify-content:center;gap:9px;margin-top:25px;display:flex}@media (width<=900px){.header-status,.sync-label{display:none}.hero-panel{padding:34px}.hero-mark{width:120px;height:120px;font-size:55px}.progress-bars{grid-template-columns:repeat(2,1fr)}.dashboard-grid,.search-result-detail{grid-template-columns:1fr}}@media (width<=680px){.app-header{gap:10px;padding:0 15px}.brand{min-width:auto}.brand-text{display:none}.main-navigation{gap:0}.nav-button{padding:0 9px;font-size:12px}.main-content{padding:32px 16px 60px}.hero-panel{min-height:auto;padding:28px}.hero-copy h1{font-size:31px}.hero-mark{display:none}.licence-grid,.settings-stat-grid{grid-template-columns:1fr}.dashboard-heading{flex-direction:column;align-items:flex-start}.dashboard-score{text-align:left;width:100%}.progress-bars{grid-template-columns:1fr}.section-heading,.exam-header{flex-direction:column;align-items:flex-start}.exam-question-card,.exam-start-card{padding:22px}.question-navigation{flex-wrap:wrap}.keyboard-hint{text-align:center;order:3;width:100%}}.question-page{gap:20px;display:grid}.question-header{justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:8px;display:flex}.question-header>div{flex:1}.question-counter{color:#5d6975;letter-spacing:.14em;text-transform:uppercase;background:#fff;border:1px solid #dfe5e9;border-radius:999px;justify-content:center;align-items:center;padding:9px 12px;font-size:10px;font-weight:700;display:inline-flex}.question-layout{grid-template-columns:minmax(0,1.7fr) minmax(270px,.9fr);align-items:start;gap:18px;display:grid}.question-card{background:#fff;border:1px solid #e0e5e9;border-radius:15px;padding:30px}.question-card-top{justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px;display:flex}.question-card-top>span{color:#8a949d;letter-spacing:.16em;font-size:10px;font-weight:750;display:block}.pin-button{color:#b3bbc3;cursor:pointer;background:#fff;border:1px solid #dfe5e9;border-radius:10px;place-items:center;width:40px;height:40px;font-size:22px;line-height:1;transition:transform .15s,border-color .15s,box-shadow .15s;display:grid}.pin-button:hover{border-color:#cbd2d8;transform:translateY(-1px)}.pin-button.marked{color:#c99500;background:#fff4bd;border-color:#e5c55d;box-shadow:0 8px 16px #c995001f}.question-state{color:#64707a;background:#f8fafb;border:1px solid #edf0f2;border-radius:10px;align-items:center;gap:8px;margin-bottom:18px;padding:10px 12px;font-size:12px;display:flex}.state-dot{background:#aeb6bd;border-radius:50%;width:8px;height:8px}.state-unanswered{background:#aeb6bd}.state-wrong{background:#d15a5a}.state-learning{background:#d3a53d}.state-mature{background:#4f9a68}.question-card h2{letter-spacing:-.03em;max-width:780px;margin:0 0 22px;font-size:25px;line-height:1.35}.hint-panel{background:#fff;border:1px solid #e0e5e9;border-radius:15px;overflow:hidden;box-shadow:0 8px 24px #17212b06}.hint-toggle{color:#17212b;cursor:pointer;width:100%;font:inherit;text-align:left;background:0 0;border:0;align-items:center;gap:12px;padding:16px 18px;display:flex}.hint-toggle>span:nth-child(2){color:#8a949d;letter-spacing:.16em;flex:1;font-size:10px;font-weight:750}.hint-toggle>span:last-child{color:#7c8791;font-size:24px;line-height:1}.hint-icon{color:#17212b;background:#f1f3f5;border-radius:50%;place-items:center;width:28px;height:28px;font-size:14px;font-weight:700;display:grid}.hint-content{color:#68737d;padding:0 18px 18px;font-size:13px;line-height:1.7}.hint-panel.expanded .hint-toggle{border-bottom:1px solid #edf0f2}.question-navigation{border-top:1px solid #edf0f2;justify-content:space-between;align-items:center;gap:16px;margin-top:25px;padding-top:18px;display:flex}.question-navigation button{color:#17212b;cursor:pointer;font:inherit;background:0 0;border:0;padding:9px 12px}.keyboard-hint{color:#8a949d;font-size:11px}.answer-feedback{border-radius:10px;margin-top:18px;padding:12px 14px;font-size:13px;font-weight:650}.answer-feedback.correct{color:#2f6d4a;background:#edf8f0;border:1px solid #a8cdb3}.answer-feedback.incorrect{color:#a54040;background:#fff3f3;border:1px solid #e1b0b0}.admin-tabs{flex-wrap:wrap;gap:8px;margin-bottom:22px;display:flex}.admin-tab{border:1px solid var(--border,#d9dee5);cursor:pointer;background:0 0;border-radius:8px;padding:10px 14px}.admin-tab.active{font-weight:700}.admin-category-list{gap:12px;display:grid}.admin-field{gap:7px;display:grid}.admin-field span{text-transform:uppercase;letter-spacing:.06em;opacity:.65;font-size:12px;font-weight:700}.admin-field input,.admin-unlock-row input{box-sizing:border-box;border:1px solid var(--border,#d9dee5);background:inherit;width:100%;font:inherit;border-radius:8px;padding:12px 13px}.admin-form-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-bottom:20px;display:grid}.admin-unlock{max-width:680px}.admin-unlock-row{align-items:center;gap:10px;display:flex}.admin-unlock-row input{flex:1}.admin-error{margin-top:8px;display:block}@media (width<=700px){.admin-form-grid{grid-template-columns:1fr}.admin-unlock-row{flex-direction:column;align-items:stretch}}.category-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.category-card{color:#17212b;cursor:pointer;text-align:left;background:#fff;border:1px solid #e0e5e9;border-radius:15px;justify-content:space-between;align-items:center;gap:18px;min-height:108px;padding:20px 22px;transition:transform .15s,border-color .15s,box-shadow .15s;display:flex}.category-card:hover{border-color:#cbd2d8;transform:translateY(-2px);box-shadow:0 12px 30px #17212b0f}.category-card>span:first-child{flex-direction:column;gap:7px;min-width:0;display:flex}.category-card strong{font-size:15px}.category-card small{color:#7a858e;font-size:11px}.category-card>span:last-child{color:#7d8790;flex:none;font-size:20px}.admin-search{box-sizing:border-box;width:100%;font:inherit;border:1px solid #dfe5e9;border-radius:9px;margin:0 0 14px;padding:13px}.admin-question-list{gap:10px;display:grid}.admin-question{background:#fff;border:1px solid #dfe5e9;border-radius:12px;overflow:hidden;box-shadow:0 6px 18px #17212b05}.admin-question-header{color:#17212b;text-align:left;cursor:pointer;background:0 0;border:0;justify-content:space-between;align-items:center;gap:16px;width:100%;padding:16px 18px;display:flex}.admin-question-meta{flex-direction:column;flex:1;gap:5px;min-width:0;display:flex}.admin-question-header small{color:#7b8791;letter-spacing:.12em;text-transform:uppercase;font-size:9px;font-weight:700}.admin-question-header strong{word-break:break-word;font-size:14px;line-height:1.4}.admin-question-toggle{color:#68737d;background:#f7f9fa;border:1px solid #dfe5e9;border-radius:8px;flex:none;place-items:center;width:28px;height:28px;font-size:16px;font-weight:700;display:grid}.admin-question-editor{gap:16px;padding:0 18px 18px;display:grid}.admin-answer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.admin-question-editor textarea{resize:vertical;min-height:80px}.admin-question-editor select{box-sizing:border-box;width:100%;font:inherit;background:#fff;border:1px solid #d9dee5;border-radius:8px;padding:12px}.admin-selection-list{gap:10px;display:grid}.admin-selection-item{cursor:pointer;background:#fff;border:1px solid #dfe5e9;border-radius:12px;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;transition:transform .15s,border-color .15s,box-shadow .15s;display:flex}.admin-selection-item:hover{border-color:#cbd2d8;transform:translateY(-1px);box-shadow:0 10px 22px #17212b0a}.admin-selection-item.selected{background:#f4f6f8;border-color:#17212b;box-shadow:0 12px 24px #17212b0f}.admin-selection-copy{flex-direction:column;flex:1;gap:5px;min-width:0;display:flex}.admin-selection-copy small{color:#7b8791;letter-spacing:.12em;text-transform:uppercase;font-size:9px;font-weight:700}.admin-selection-copy strong{word-break:break-word;font-size:14px;line-height:1.4;display:block}.admin-selection-item input{accent-color:#17212b;cursor:pointer;width:18px;height:18px}.admin-form-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.admin-field{color:#17212b;gap:8px;font-size:13px;display:grid}.admin-field span{color:#5b6872;letter-spacing:.08em;text-transform:uppercase;font-size:11px;font-weight:700}.admin-field input,.admin-field textarea,.admin-field select{box-sizing:border-box;color:#17212b;width:100%;font:inherit;background:#fff;border:1px solid #dde3e8;border-radius:9px;padding:12px}.admin-category-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.admin-category-item{background:#fafbfc;border:1px solid #e3e8eb;border-radius:10px;gap:8px;padding:14px 15px;display:grid}.admin-category-row{justify-content:space-between;align-items:center;gap:12px;display:flex}.admin-category-label{color:#5b6872;letter-spacing:.12em;text-transform:uppercase;font-size:10px;font-weight:700;display:block}.danger-inline{min-height:32px;padding:0 10px;font-size:11px}.admin-category-item input{box-sizing:border-box;width:100%;font:inherit;background:#fff;border:1px solid #dde3e8;border-radius:8px;padding:12px}.admin-tabs{flex-wrap:wrap;gap:8px;margin:18px 0 10px;display:flex}.admin-tab{color:#5d6975;cursor:pointer;background:#fff;border:1px solid #dfe5e9;border-radius:999px;padding:9px 12px;font-weight:600}.admin-tab.active{color:#fff;background:#17212b;border-color:#17212b}.admin-question-list .admin-field{background:#fafbfc;border:1px solid #edf0f2;border-radius:10px;padding:12px 14px}@media (width<=700px){.category-list,.admin-answer-grid,.admin-form-grid,.admin-category-list{grid-template-columns:1fr}.admin-question-header{align-items:flex-start}.admin-question-toggle{margin-top:2px}}