.container{max-width:800px;margin:24px auto;padding:16px}.error-notice{color:var(--danger)}.app-header{width:100%;background:#006747;color:#fff;position:sticky;top:0;z-index:50}.app-header a{color:#fff}.app-header-inner{max-width:800px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:12px;position:relative}.brand-logo{height:40px;width:auto}.primary-nav{margin-left:auto;display:flex;align-items:center;gap:12px}.primary-nav a{text-decoration:none;padding:6px 8px;border-radius:6px;color:#fff;font-weight:500}.primary-nav a:hover{background:#ffffff1f;color:#fff}.brand a:hover{color:#fff}.primary-nav .active{background:var(--nhs-green);color:#fff;font-weight:700}.logout-btn{margin-left:8px;padding:6px 10px;border:1px solid rgba(255,255,255,.25);background:transparent;color:#fff;border-radius:6px;cursor:pointer}.logout-btn:hover{background:#ffffff1f;border-color:#ffffff59}.hamburger{display:none;background:transparent;border:0;margin-left:auto;cursor:pointer;padding:6px}.hamburger span{display:block;width:22px;height:2px;background:#fff;margin:4px 0;transition:transform .25s ease,opacity .25s ease}.hamburger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}.hamburger.is-open span:nth-child(2){opacity:0}.hamburger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}.back-btn,.flag-btn,.exit-btn{margin-bottom:15px}.home-logo{display:block;max-width:400px;margin:0 auto 40px;border-radius:20px}.home-greeting{margin-bottom:24px;text-align:left;background:var(--surface);border-left:6px solid var(--nhs-green);padding:18px 20px;border-radius:14px;box-shadow:var(--shadow)}.home-greeting h2{margin:0 0 8px;color:var(--nhs-dark);font-size:1.5rem}.home-greeting p{margin:0;color:var(--muted);font-size:1rem;line-height:1.4}.home-cs-container{border:1px solid var(--border);border-left:6px solid var(--nhs-green);padding:14px 16px;margin:12px 0;border-radius:12px;background:var(--surface);box-shadow:var(--shadow)}.home-quizzes-list{margin:10px 0 0;padding-left:0;list-style:none}.home-quizzes-list li+li{margin-top:6px}.open-qz-btn{display:block;align-items:center;gap:.5rem;border-radius:10px;border:1px solid var(--nhs-aqua);background:#fff;color:var(--nhs-aqua);padding:.6rem 1rem;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .02s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;box-shadow:0 1px #00000005}.open-qz-btn:hover{box-shadow:var(--shadow)}.open-qz-btn:active{transform:translateY(1px)}.flagged-list{list-style:none;padding:0}.flagged-item{background:var(--surface);border:1px solid var(--border);border-left:6px solid var(--nhs-aqua);margin:10px 0;padding:12px;border-radius:12px;box-shadow:var(--shadow)}.flagged-item-title{font-weight:700;color:var(--nhs-dark)}.flagged-item-stem{margin-top:6px}.flagged-item-actions{margin-top:10px;display:flex;gap:8px}.my-scores-list{list-style:none;padding-left:0}.my-scores-list li{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:10px 12px;margin:8px 0;box-shadow:var(--shadow)}.quiz-intro-links{margin-top:12px}.quiz-intro-toolbar{display:flex;justify-content:flex-start;margin-bottom:16px}.quiz-run-radio{position:absolute;opacity:0;pointer-events:none}.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}.quiz-run-toolbar{display:flex;gap:8px;align-items:center}.quiz-run-toolbar .quiz-info{margin-left:auto;opacity:.8}.quiz-run-question-title{margin-top:12px}.quiz-run-stem{font-size:18px}.quiz-run-answers{list-style:none;padding:0;margin-top:8px}.quiz-run-answer{margin:8px 0;background:#fff;border:2px solid var(--border);border-radius:10px;padding:10px 14px;cursor:pointer;transition:border-color .2s,background .2s,box-shadow .2s;display:flex;align-items:center}.quiz-run-answer label{cursor:pointer;display:flex;gap:8px;align-items:center}.quiz-run-answer:hover{border-color:var(--nhs-light);box-shadow:var(--shadow)}.quiz-run-answer.answer--selected{background:#e6f4ea;border-color:var(--nhs-green);box-shadow:0 0 0 3px #00963940}.quiz-run-error{color:var(--danger);margin-top:8px}.quiz-run-nav{display:flex;gap:8px;margin-top:16px}.review-links{margin:16px 0}.review-list{padding-left:20px}.review-item{margin:10px 0;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:10px 12px;box-shadow:var(--shadow)}.review-stem{font-weight:600;color:var(--nhs-dark)}.review-explanation{margin-top:6px;font-style:italic;color:var(--muted)}.answer-badge{display:inline-block;margin-left:.5rem;padding:.1rem .5rem;border-radius:999px;font-weight:700;font-size:.85rem}.answer-badge.correct{background:#e8f6ea;color:var(--nhs-green)}.answer-badge.wrong{background:#fde9ea;color:#9b1c1c}.review-item-header{display:flex;gap:12px;align-items:flex-start}.review-item-header .btn{margin-left:auto}.login-page,.register-page{max-width:420px;margin:40px auto;padding:16px;background:var(--surface);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow)}.login-error,.register-error{color:var(--danger);margin-top:12px}.login-register-link,.register-login-link{margin-top:12px}.profile-inline-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:16px}.profile-name{font-size:1.1rem}.profile-input{padding:6px 8px;border-radius:6px;border:1px solid #ccc;font-size:1rem}.profile-label{font-weight:700;font-size:1.1rem}.success-notice{color:car(--nhs-green);margin-top:12px}.error-notice{color:var(--danger);margin-top:12px}@media (max-width: 768px){.primary-nav{position:absolute;right:16px;top:50px;background:var(--nhs-dark);border:1px solid rgba(255,255,255,.2);border-radius:10px;box-shadow:0 6px 18px #00000040;display:none;flex-direction:column;align-items:stretch;min-width:200px;padding:8px;gap:4px}.primary-nav.is-open{display:flex}.primary-nav a,.primary-nav .logout-btn{padding:10px 12px;border-radius:8px;text-align:left}.primary-nav a:hover,.primary-nav .logout-btn:hover{background:#ffffff1f}.hamburger{display:inline-block}.home-logo{max-width:90%;max-height:150px;margin-bottom:24px}}:root{--nhs-dark: #006747;--nhs-green: #009639;--nhs-light: #78BE20;--nhs-aqua: #00A499;--bg: #f6fbf7;--surface: #ffffff;--text: #133a2d;--muted: #5a6b63;--border: #e2eee6;--shadow: 0 8px 20px rgba(0,0,0,.06);--link: var(--nhs-aqua);--link-hover: #008a83;--btn-bg: var(--surface);--btn-text: var(--text);--btn-border: var(--border);--btn-primary-bg: var(--nhs-green);--btn-primary-text: #fff;--btn-primary-hover: #008a34;--btn-outline-text: var(--nhs-green);--btn-outline-border: var(--nhs-green);--danger: #c83532;--danger-contrast: #fff;--focus: #005eb8}*{box-sizing:border-box}html,body{margin:0;padding:0;min-height:100%;background:var(--bg);color:var(--text);font-family:system-ui,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,"Apple Color Emoji","Segoe UI Emoji";-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--link);text-decoration:none;font-weight:600}a:hover{color:var(--link-hover);text-decoration:underline}#root{width:100%}h1{font-size:2rem;line-height:1.2;margin:0 0 .75rem}h2{font-size:1.375rem;line-height:1.3;margin:1rem 0 .5rem}button,.btn{display:inline-flex;align-items:center;gap:.5rem;border-radius:10px;border:1px solid var(--btn-border);background:var(--btn-bg);color:var(--btn-text);padding:.6rem 1rem;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .02s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;box-shadow:0 1px #00000005}button:hover,.btn:hover{box-shadow:var(--shadow)}button:active,.btn:active{transform:translateY(1px)}button:disabled,.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--btn-primary-bg);color:var(--btn-primary-text);border-color:var(--btn-primary-bg)}.btn-primary:hover{background:var(--btn-primary-hover)}.btn-danger{background:var(--danger);color:var(--danger-contrast);border-color:var(--danger)}:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:8px}.card{background:var(--surface);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow)}input,select,textarea{width:100%;padding:.6rem .7rem;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--text);font-size:1rem}label{font-weight:600}