html,body{height:100%}*{-moz-box-sizing:border-box}body{background-color:#ededed;color:#424242;margin:0;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px;line-height:1.428571429}h1,h2,h3,h4,h5,h6,.h1,.h2,.h3,.h4,.h5,.h6{font-family:"HelveticaNeue-Light","Helvetica Neue Light","Helvetica Neue",Helvetica,Arial,"Lucida Grande",sans-serif;font-weight:400;line-height:1.1;color:#333}h1 small,h2 small,h3 small,h4 small,h5 small,h6 small,.h1 small,.h2 small,.h3 small,.h4 small,.h5 small,.h6 small{font-weight:400;line-height:1}h1,.h1{font-size:45px;line-height:48px}h2,.h2{font-size:36px;line-height:42px}h3,.h3{font-size:28px;line-height:36px}h4,.h4{font-size:24px;line-height:25px}h5,.h5{font-size:20px;line-height:24px}h6,.h6{font-size:18px;line-height:24px}a{color:#3282e6}a:hover,a:focus{color:#165db5;text-decoration:underline}.text-center{text-align:center}.wrap{min-height:100%;.display:table;.height:100%}
:root{--blue:#0057b8;--deep:#083b78;--ink:#172c44;--muted:#61738b;--line:#e3eaf1;--pale:#f4f8fd;--white:#fff;--shadow:0 10px 32px rgba(23,48,83,.06)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);font-size:16px;line-height:1.65}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}button,input{font:inherit}.container{max-width:1140px;padding:0 22px;margin:auto}.site-header{position:sticky;top:0;z-index:10;background:#fff;border-bottom:1px solid var(--line)}.topline{height:5px;background:var(--blue)}.head{min-height:76px;display:flex;gap:24px;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:11px;color:var(--ink);font-size:24px;letter-spacing:-.9px;font-weight:850;white-space:nowrap}.brand:hover{text-decoration:none}.brand-mark{display:grid;place-items:center;border-radius:12px;width:40px;height:40px;background:var(--blue);color:white;font-size:24px}.brand strong{color:var(--blue)}nav{display:flex;align-items:center;gap:25px}nav a{font-size:14px;font-weight:650;color:#364961}nav a.active{color:var(--blue)}.nav-toggle{display:none;background:white;border:1px solid var(--line);border-radius:9px;padding:8px 13px}.btn{display:inline-flex;gap:9px;align-items:center;justify-content:center;padding:12px 20px;background:var(--blue);color:#fff;font-weight:750;border:1px solid var(--blue);border-radius:10px;cursor:pointer;text-align:center}.btn:hover{background:var(--deep);color:white;text-decoration:none}.btn.outline{background:white;color:var(--blue)}.btn.outline:hover{background:#edf5ff}.btn.small{font-size:13px;padding:9px 13px}.hero{background:linear-gradient(120deg,#f0f6fe,#fff 75%);border-bottom:1px solid var(--line);padding:70px 0}.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:45px;align-items:center}.eyebrow{display:inline-block;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.09em;text-transform:uppercase}h1,h2,h3{color:var(--ink);font-weight:800;letter-spacing:-.035em;line-height:1.22;margin:0 0 16px}h1{font-size:clamp(36px,4.8vw,58px)}h2{font-size:clamp(27px,3vw,35px)}h3{font-size:20px}p{margin:0 0 16px}.lead{font-size:18px;color:var(--muted);max-width:640px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:25px}.hero-panel{background:white;border:1px solid var(--line);box-shadow:var(--shadow);padding:26px;border-radius:20px}.hero-panel .big{font-size:52px;color:var(--blue);font-weight:900;line-height:1}.hero-panel .tag{font-size:13px;color:var(--muted)}.panel-item{border-top:1px solid var(--line);padding:16px 0;display:flex;gap:14px}.panel-item:last-child{padding-bottom:0}.panel-item .icon{font-size:25px}.section{padding:65px 0}.section.muted{background:#f7fafe}.section-title{display:flex;justify-content:space-between;gap:20px;align-items:flex-end;margin-bottom:26px}.section-title p{color:var(--muted);margin:0}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{border:1px solid var(--line);border-radius:15px;padding:26px;background:#fff;box-shadow:0 3px 12px rgba(23,48,83,.025)}.card h3{margin:9px 0}.card p{color:var(--muted)}.card .symbol{font-size:30px}.card .link{font-weight:750}.kicker{color:var(--blue);font-weight:800;font-size:12px;text-transform:uppercase;letter-spacing:.08em}.banner{background:var(--deep);border-radius:18px;padding:36px 42px;color:white;display:flex;justify-content:space-between;gap:24px;align-items:center}.banner h2,.banner p{color:white}.banner .btn{background:white;color:var(--blue);border-color:white}.bread{color:var(--muted);font-size:13px;margin:24px 0}.page-hero{padding:30px 0 22px;background:var(--pale);border-bottom:1px solid var(--line)}.page-hero h1{font-size:38px}.content{padding:38px 0 70px}.narrow{max-width:820px}.list-card{padding:20px;border:1px solid var(--line);border-radius:12px;display:flex;justify-content:space-between;align-items:center;gap:16px;margin:12px 0}.smallmuted{color:var(--muted);font-size:14px}.quiz{padding:25px;background:white;border:1px solid var(--line);border-radius:14px;margin:16px 0}.quiz legend{font-weight:800;font-size:17px;padding:0 0 12px}.choice{display:flex;gap:12px;padding:12px;border:1px solid var(--line);border-radius:9px;margin:9px 0;cursor:pointer}.choice:has(input:checked){border-color:var(--blue);background:#edf5ff}.choice input{accent-color:var(--blue)}.notice{border-left:4px solid var(--blue);padding:14px 17px;background:var(--pale);border-radius:8px;margin:20px 0}.result{padding:30px;border:1px solid var(--line);border-radius:16px;margin:15px 0}.result.correct{border-left:5px solid #21845c}.result.incorrect{border-left:5px solid #b35837}.score{font-size:52px;color:var(--blue);font-weight:900}.footer{border-top:1px solid var(--line);padding:36px 0;color:var(--muted);font-size:14px}.footer-grid{display:flex;justify-content:space-between;gap:25px}.footer a{color:var(--ink)}.muted-label{font-size:12px;color:var(--muted)}@media(max-width:800px){.head{min-height:64px}.nav-toggle{display:block}nav{display:none;position:absolute;left:0;right:0;top:69px;background:white;border-bottom:1px solid var(--line);padding:16px 22px;flex-direction:column;align-items:flex-start;gap:14px}nav.open{display:flex}.hero{padding:45px 0}.hero-grid{grid-template-columns:1fr;gap:25px}.grid{grid-template-columns:1fr 1fr}.section{padding:45px 0}.banner{padding:28px;flex-direction:column;align-items:flex-start}.footer-grid{flex-direction:column}.page-hero h1{font-size:32px}}@media(max-width:530px){.container{padding:0 16px}.brand{font-size:21px}.grid{grid-template-columns:1fr}.section-title{align-items:flex-start;flex-direction:column}.actions .btn{width:100%}.list-card{align-items:flex-start;flex-direction:column}.hero-panel{padding:20px}.card{padding:21px}h1{font-size:38px}}
/* Study flows and editing controls */
.brand-suffix{font-size:11px;color:var(--muted)}.text-blue{color:var(--blue)}.icon-step{display:inline-grid;place-items:center;width:32px;height:32px;flex:0 0 32px;border-radius:9px;background:#edf5ff;color:var(--blue);font-weight:800}.banner-kicker{font-size:13px;font-weight:800;letter-spacing:.07em;text-transform:uppercase;color:#d5e5ff}.lesson-text{font-size:17px;line-height:1.9;white-space:normal;overflow-wrap:anywhere}.block-title{margin:32px 0 18px}.option-en{display:block;font-size:13px;color:var(--muted);margin-top:2px}.quiz-toolbar{position:sticky;top:80px;z-index:8;display:flex;justify-content:space-between;align-items:center;gap:15px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:13px 18px;box-shadow:var(--shadow)}.quiz-toolbar p{margin:0}.quiz-clock{text-align:right;white-space:nowrap}.quiz-clock span{display:block;color:var(--muted);font-size:12px}.quiz-clock strong{display:block;font-size:28px;line-height:1.2;color:var(--blue);font-variant-numeric:tabular-nums}.quiz-clock strong.urgent{color:#bf3d35}.quiz-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:26px}.quiz legend{float:none;max-width:100%;line-height:1.5}.quiz .choice:has(input:focus-visible){outline:2px solid var(--blue);outline-offset:2px}.score-panel{background:var(--pale);padding:28px;border-radius:16px;border:1px solid var(--line);margin-bottom:25px}.score-panel .score{line-height:1.2;margin:6px 0}.answer-status{font-weight:700}.answer-option{padding:10px 14px;border-radius:9px;background:#f7f9fc;margin:8px 0;display:flex;justify-content:space-between;gap:12px}.answer-option strong{white-space:nowrap;font-size:13px}.answer-good{background:#eaf6ef;color:#145c35}.answer-wrong{background:#fff0ed;color:#973b2e}.explanation{border-top:1px solid var(--line);padding-top:14px;margin-top:15px}.history-score{color:var(--blue);font-size:20px;font-variant-numeric:tabular-nums}.admin-main{padding-top:36px;padding-bottom:90px}.admin-main h1{font-size:38px}.admin-main h2{font-size:25px}.admin-summary{margin-top:20px}.admin-editor{margin:22px 0 32px}.admin-editor h3{margin-top:22px}.admin-field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px 18px}.admin-field-grid .wide{grid-column:1/-1}.admin-field{margin:4px 0}.admin-field label{display:block;font-size:14px;font-weight:650;margin-bottom:6px}.admin-field input:not([type=checkbox]):not([type=radio]),.admin-field select,.admin-field textarea,.admin-list-head input{width:100%;border:1px solid #cbd6e3;border-radius:9px;padding:11px 13px;background:white;color:var(--ink);font-size:15px}.admin-field textarea{resize:vertical;min-height:90px}.admin-field .admin-check,.admin-check{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:600;margin:10px 0;cursor:pointer}.admin-check input{accent-color:var(--blue);width:17px;height:17px;flex:none}.admin-list-head{display:flex;justify-content:space-between;gap:18px;align-items:center;margin:24px 0 12px}.admin-list-head h2{margin:0}.admin-list-head form{display:flex;gap:8px;align-items:center}.admin-list-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 0;border-bottom:1px solid var(--line)}.admin-list-row:last-child{border-bottom:0}.admin-list-row a{font-weight:650}.admin-list-row p{margin:4px 0 0}.status-label{font-size:12px;color:var(--muted);white-space:nowrap}.question-picker{max-height:440px;overflow:auto;border:1px solid var(--line);border-radius:12px;padding:4px 16px}.question-choice{display:flex;gap:10px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--line);cursor:pointer}.question-choice:last-child{border-bottom:0}.question-choice input{margin-top:6px;accent-color:var(--blue);width:17px;height:17px;flex:none}.question-choice span{min-width:0;overflow-wrap:anywhere}.question-choice small{display:block;color:var(--muted)}.question-choice[hidden]{display:none}.state-admin-list{columns:2;column-gap:30px}.state-admin-list .admin-list-row{break-inside:avoid}.admin-main .grid{margin-bottom:20px}
@media(max-width:1100px){.head nav{gap:11px}.head nav a{font-size:12px}}@media(max-width:800px){.quiz-toolbar{top:65px}.state-admin-list{columns:1}.admin-field-grid{grid-template-columns:1fr}.admin-list-head{align-items:stretch;flex-direction:column}.admin-main h1{font-size:32px}.admin-main .grid{grid-template-columns:1fr 1fr}}@media(max-width:530px){.quiz-toolbar{padding:12px;gap:10px}.quiz-clock strong{font-size:24px}.quiz{padding:15px}.quiz-actions .btn{width:100%}.score-panel{padding:20px}.answer-option{display:block}.answer-option strong{display:block;margin-top:5px}.admin-main .grid{grid-template-columns:1fr}.admin-list-head form{width:100%}.admin-list-head input{min-width:0}}
/* Student account and review screens */
.account-panel{max-width:510px;margin:0 auto;border:1px solid var(--line);border-radius:16px;padding:28px;background:#fff;box-shadow:var(--shadow)}.account-tabs{display:flex;border-bottom:1px solid var(--line);gap:23px;margin-bottom:24px}.account-tabs a{padding:0 0 13px;color:var(--muted);font-weight:750}.account-tabs a.current{border-bottom:3px solid var(--blue);color:var(--blue)}.member-form{display:flex;flex-direction:column;gap:10px}.member-form label{font-weight:700;font-size:14px;margin-top:6px}.member-form input{width:100%;border:1px solid #bfcedf;border-radius:10px;padding:12px 14px;background:#fff;color:var(--ink);font-size:16px;min-height:46px}.member-form input:focus{outline:2px solid #a9c8ed;outline-offset:1px}.member-form .btn{margin-top:15px}.account-footnote{margin:20px 0 0}.account-feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px;margin-bottom:24px}.account-feature:hover{text-decoration:none;border-color:#a3c8f4}.account-feature .link{font-weight:750}.account-settings{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.account-settings h2{font-size:23px}.account-logout{margin-top:24px}.history-actions{display:flex;align-items:center;gap:15px}.study-wrong-list{display:grid;gap:13px}.study-wrong-list .card{padding:20px}.study-wrong-list .card h3{font-size:18px;margin-top:8px}.study-wrong-list .card p{margin:0 0 8px}.result[id^="question-"]{scroll-margin-top:100px}.study-wrong-list .card[id^="question-"]{scroll-margin-top:100px}@media(max-width:850px){.account-feature-grid{grid-template-columns:1fr}.account-settings{grid-template-columns:1fr}.history-actions{flex-wrap:wrap}}@media(max-width:530px){.account-panel{padding:18px}.history-actions{width:100%;justify-content:space-between}}
/* Lesson reading and editorial workspaces */
.lesson-rich{line-height:1.85;font-size:17px;max-width:100%;overflow-wrap:anywhere}.lesson-rich h2{font-size:27px;margin:33px 0 12px;line-height:1.35}.lesson-rich h3{font-size:22px;margin:28px 0 10px;line-height:1.4}.lesson-rich h4{font-size:18px;margin:22px 0 8px}.lesson-rich p{margin:0 0 20px}.lesson-rich ul,.lesson-rich ol{padding-left:27px;margin:12px 0 23px}.lesson-rich li{padding-left:4px;margin:8px 0}.lesson-rich a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}.lesson-figure{margin:28px 0;text-align:center}.lesson-figure img{display:block;margin:0 auto;max-width:100%;height:auto;border-radius:12px;border:1px solid var(--line)}.lesson-figure figcaption{color:var(--muted);font-size:13px;margin-top:9px}.lesson-nav{display:flex;align-items:stretch;gap:14px;margin-top:40px}.lesson-nav a{display:block;flex:1;padding:16px 20px;border:1px solid var(--line);border-radius:12px;font-weight:700}.lesson-nav small{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}.lesson-nav a:hover{background:var(--pale);text-decoration:none}.lesson-preview{max-width:840px;margin:28px 0;padding:35px}.lesson-editor-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.lesson-editor-heading h2{margin:5px 0}.lesson-editor-tools{display:flex;flex-wrap:wrap;gap:7px;padding:9px;border:1px solid #cbd6e3;border-bottom:0;border-radius:10px 10px 0 0;background:#f5f8fd}.lesson-editor-tools button{border:1px solid #ccd9ea;background:#fff;padding:6px 13px;border-radius:7px;color:var(--ink);font-weight:650;cursor:pointer}.lesson-editor-tools button:hover{border-color:var(--blue)}.admin-field .lesson-editor-tools+textarea{border-radius:0 0 10px 10px;min-height:360px;font-family:inherit;line-height:1.75}.lesson-upload-panel{margin:20px 0}.lesson-upload-form{display:flex;gap:14px;flex-wrap:wrap;align-items:center}.lesson-upload-form input{max-width:100%}.lesson-insert-result{margin-top:18px;border:1px solid var(--line);border-radius:12px;padding:16px;display:flex;align-items:center;gap:18px}.lesson-insert-result img{width:112px;max-height:88px;object-fit:contain;border-radius:9px}.lesson-insert-result>div{flex:1;min-width:0}.lesson-insert-result input{width:100%;padding:10px;margin:5px 0 9px;border:1px solid var(--line);border-radius:8px}.lesson-upload-panel h2{margin-top:0}@media(max-width:660px){.lesson-nav{flex-direction:column}.lesson-editor-heading{align-items:flex-start;flex-direction:column}.lesson-insert-result{align-items:flex-start;flex-direction:column}.lesson-rich{font-size:16px}.lesson-rich h2{font-size:24px}.lesson-preview{padding:22px}}

/* Question bank and exam search controls. */
.hbn-question-filters{padding:20px;margin-bottom:20px}.hbn-question-filters .actions{margin-top:12px}.hbn-exam-search{margin-bottom:25px;padding:20px}.hbn-exam-search .actions{margin-top:12px}.hbn-import-fields{margin:18px 0;background:#f6f9fd;border:1px solid #dce7f4;padding:16px;border-radius:12px;overflow-wrap:anywhere}.hbn-import-fields code{font-size:13px;line-height:2;color:#184a86}.quiz-toolbar [data-quiz-save-status]{max-width:360px;margin-top:5px;color:#506580;font-size:12px}.hbn-question-filters .btn.outline,.hbn-exam-search .btn.outline{border:1px solid #c3d5ec}
@media(max-width:530px){.hbn-question-filters,.hbn-exam-search{padding:15px}.quiz-toolbar [data-quiz-save-status]{font-size:11px}}

/* Learning and private administration interface */
.hbn-learning-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:0 0 24px}.hbn-learning-stats .card{text-align:center;padding:19px}.hbn-learning-stats strong{display:block;color:#0057b8;font-size:31px;line-height:1.2}.hbn-learning-stats span{font-size:13px;color:var(--muted)}.hbn-study-item{padding:11px 0;border-bottom:1px solid var(--line)}.hbn-study-item:last-child{border-bottom:0}.hbn-study-item small{display:block;color:var(--muted);margin-top:4px}.hbn-topic-stat{display:flex;gap:14px;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:11px 0}.hbn-topic-stat span{flex:1}.hbn-topic-stat small{color:var(--muted)}.hbn-topic-stat strong{color:var(--blue)}.hbn-lesson-progress{margin-top:28px}.hbn-admin-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.hbn-admin-actions form{margin:0}.hbn-pass-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:20px 0}.hbn-pass-summary>div{padding:20px;border-radius:12px;background:var(--pale);text-align:center}.hbn-pass-summary b{font-size:29px;color:var(--blue);display:block}.hbn-pass-summary span{font-size:12px;color:var(--muted);font-weight:700}.hbn-check-row{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}.hbn-check-status{padding:3px 9px;font-weight:800;font-size:11px;border-radius:8px;flex:none}.hbn-check-status.pass{color:#146038;background:#e9f7ee}.hbn-check-status.warn{color:#8a580a;background:#fff5da}.hbn-check-status.fail{color:#a52d23;background:#fff0ee}.hbn-check-row .smallmuted{margin:3px 0 0}.hbn-pass-report{width:100%;min-height:240px;padding:12px;border:1px solid var(--line);border-radius:9px;font-size:13px}.hbn-member-row>div:last-child{text-align:right}.hbn-member-row form{margin-top:8px}.hbn-verification-panel{margin-bottom:20px}@media(max-width:780px){.hbn-learning-stats{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:530px){.hbn-member-row{align-items:flex-start}.hbn-pass-summary b{font-size:23px}.hbn-lesson-progress .btn{width:100%}}

/* State guide editorial and learner-facing reading layouts */
.hbn-guide-article{max-width:960px;margin:22px 0}.hbn-guide-article section+section{border-top:1px solid #e5eaf0;margin-top:20px;padding-top:20px}.hbn-guide-article h2{margin:0 0 10px}.hbn-guide-article p{line-height:1.85;margin:8px 0}.hbn-guide-note{max-width:960px;border-left:4px solid #0057b8;padding:12px 16px;background:#f2f7fe;margin:18px 0;border-radius:6px}.hbn-guide-form{display:grid;gap:15px}.hbn-guide-form label{display:flex;flex-direction:column;gap:6px;font-weight:600}.hbn-guide-form input:not([type=checkbox]),.hbn-guide-form select,.hbn-guide-form textarea{width:100%;font:inherit;border:1px solid #c9d3e1;border-radius:8px;padding:11px;color:#182436;background:#fff}.hbn-guide-form textarea{resize:vertical;min-height:110px;line-height:1.6}.hbn-guide-form .hbn-guide-consent{display:flex;flex-direction:row;align-items:flex-start;font-weight:500;gap:10px}.hbn-guide-consent input{margin-top:6px}.hbn-guide-form a{word-break:break-all}@media(max-width:640px){.hbn-guide-article{padding:20px 16px}.hbn-guide-form textarea{min-height:130px}}
/* V14 learning navigation and content discovery */
:root{--hbn-ease:cubic-bezier(.2,.75,.25,1)}
.site-header .head{gap:15px}
.site-header .head nav{gap:13px;flex-wrap:nowrap}
.site-header .head nav a{font-size:13px;white-space:nowrap}
.site-header .head nav a.btn{padding:8px 12px}
.site-header .brand{flex-shrink:0}
:focus-visible{outline:3px solid #0057b8;outline-offset:3px}
.hbn-search-band{position:relative;z-index:1;padding:20px 0;background:#f7fafe;border-bottom:1px solid var(--line)}
.hbn-search-bar{border:1px solid var(--line);background:#fff;border-radius:16px;padding:18px 22px;box-shadow:var(--shadow);max-width:970px;margin:0 auto}
.hbn-search-bar label,.hbn-job-card label{display:block;font-size:14px;font-weight:760;margin:0 0 8px;color:var(--ink)}
.hbn-search-controls{display:flex;align-items:stretch;gap:10px}
.hbn-search-controls input,.hbn-search-controls select{flex:1;min-width:0;width:100%;background:#fff;border:1px solid #cbd6e4;color:var(--ink);border-radius:10px;font:inherit;padding:12px 14px}
.hbn-search-controls .btn{flex:0 0 auto;white-space:nowrap}
.hbn-search-standalone{margin:0 0 30px;max-width:none}
.hbn-result-heading{margin:28px 0 14px;font-size:25px}
.hbn-result-heading span{font-size:15px;color:var(--muted)}
.hbn-result-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.hbn-result-card{min-width:0}
.hbn-result-card h3 a{color:var(--ink)}
.hbn-result-card p{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden}
.hbn-career-teaser{border-radius:22px;border:1px solid #dce6f5;background:linear-gradient(120deg,#f5f9ff,#fff);padding:36px;display:grid;grid-template-columns:1.6fr 1fr;align-items:center;gap:26px}
.hbn-career-teaser h2{max-width:560px}
.hbn-career-steps{display:grid;gap:12px}
.hbn-career-steps span{display:block;padding:15px 17px;border:1px solid #dbe8f7;border-radius:12px;background:#fff;color:#24496e;font-weight:700}
.hbn-jobs-layout{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(270px,.8fr);gap:22px;align-items:start}
.hbn-jobs-layout .card h2{font-size:24px}
.hbn-jobs-layout p,.hbn-job-guide li{color:var(--muted)}
.hbn-job-destination{margin-top:22px;padding:22px;border-radius:14px;background:var(--pale);border:1px solid var(--line)}
.hbn-job-destination strong{display:block;margin-bottom:7px}
.hbn-job-guide ol{padding-left:22px}
.hbn-job-guide li{margin:0 0 12px}
.hbn-quiz-map{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:16px;padding:14px 16px;border-radius:13px;background:#f6f9fe;border:1px solid var(--line)}
.hbn-quiz-map::before{content:"Đến câu:";color:var(--muted);font-size:13px;font-weight:700;margin-right:4px}
.hbn-quiz-map a{width:36px;height:36px;border:1px solid #cbd9ec;background:#fff;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;color:var(--blue)}
.hbn-quiz-map a.answered{background:var(--blue);color:#fff;border-color:var(--blue)}
.quiz{scroll-margin-top:155px}
.quiz-toolbar{top:82px}
/* Prevent narrow screens from hiding essential navigation and answer controls */
@media(max-width:1120px){.site-header .head nav{gap:9px}.site-header .head nav a{font-size:12px}.site-header .brand{font-size:21px}}
@media(max-width:980px){.site-header .head{position:relative}.site-header .nav-toggle{display:block;min-height:44px;min-width:44px}.site-header .head nav{display:none;position:absolute;left:-16px;right:-16px;top:100%;background:#fff;border:1px solid var(--line);padding:14px 20px 22px;flex-direction:column;align-items:stretch;gap:5px;max-height:calc(100dvh - 76px);overflow:auto;box-shadow:0 18px 22px rgba(22,40,68,.13)}.site-header .head nav.open{display:flex}.site-header .head nav a{font-size:16px;width:100%;padding:10px 12px;min-height:44px;border-radius:8px}.site-header .head nav a:hover,.site-header .head nav a:focus-visible{background:#f0f6fe}.site-header .head nav a.btn{justify-content:center}.hbn-jobs-layout{grid-template-columns:1fr}}
@media(max-width:650px){.hbn-search-controls{flex-direction:column}.hbn-search-controls .btn{width:100%}.hbn-search-bar{padding:16px}.hbn-career-teaser{grid-template-columns:1fr;padding:24px}.hbn-result-grid{grid-template-columns:1fr}.hbn-jobs-layout .card h2{font-size:22px}.hbn-quiz-map a{width:35px;height:35px}.quiz-toolbar{top:70px}.quiz{scroll-margin-top:155px}.hbn-search-band{padding:14px 0}.hbn-job-destination{padding:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}}

/* Compact admin navigation with full module access */
.hbn-admin-header .head{position:relative}
.hbn-admin-header .nav-toggle{display:block;min-height:44px}
.hbn-admin-header .head nav{display:none;position:absolute;z-index:50;top:calc(100% - 1px);right:0;left:0;background:#fff;padding:18px;border:1px solid var(--line);border-radius:0 0 14px 14px;box-shadow:0 20px 28px rgba(22,40,68,.13);grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;max-height:calc(100dvh - 86px);overflow:auto}
.hbn-admin-header .head nav.open{display:grid}
.hbn-admin-header .head nav a{padding:10px 12px;white-space:normal;font-size:14px;min-height:43px;border:1px solid #e8eef5;border-radius:8px}
.hbn-admin-header .head nav a:hover{background:var(--pale)}
@media(max-width:800px){.hbn-admin-header .head nav{left:-16px;right:-16px;top:100%;grid-template-columns:repeat(2,minmax(0,1fr));padding:12px}.hbn-admin-header .head nav a{font-size:14px}}
@media(max-width:460px){.hbn-admin-header .head nav{grid-template-columns:1fr 1fr;gap:6px}.hbn-admin-header .head nav a{font-size:13px;padding:9px;min-height:44px}}

/* Admin reports */
.hbn-audit-cards{margin:20px 0}.hbn-audit-cards .card{padding:22px}.hbn-audit-cards h2{color:var(--blue);font-size:36px;margin:0 0 5px;font-variant-numeric:tabular-nums}.hbn-audit-cards p{font-size:14px;margin:0}.hbn-audit-blocks{grid-template-columns:repeat(2,minmax(0,1fr));margin:22px 0}.hbn-audit-blocks .card{min-width:0}.hbn-audit-stat{margin:13px 0}.hbn-audit-stat>div:first-child{display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap;font-size:14px}.hbn-audit-stat span{color:var(--muted)}.hbn-audit-track{background:#e8eff8;height:8px;overflow:hidden;border-radius:8px;margin:5px 0}.hbn-audit-track>div{height:100%;background:var(--blue);border-radius:8px}.hbn-audit-table{overflow:auto}.hbn-audit-table table{width:100%;border-collapse:collapse;font-size:14px}.hbn-audit-table th,.hbn-audit-table td{padding:13px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.hbn-audit-table th{color:var(--muted);white-space:nowrap}.hbn-audit-manual{display:flex;gap:12px;align-items:flex-start;border-bottom:1px solid var(--line);padding:13px 0;cursor:pointer;font-size:15px}.hbn-audit-manual:last-child{border-bottom:0}.hbn-audit-manual input{flex:none;width:19px;height:19px;margin-top:4px;accent-color:var(--blue)}.hbn-release-panel{margin-top:22px}.hbn-pass-report{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px;font-size:13px;line-height:1.6;max-width:100%;min-height:280px}@media(max-width:700px){.hbn-audit-blocks{grid-template-columns:1fr}.hbn-audit-cards{grid-template-columns:1fr 1fr}.hbn-audit-cards h2{font-size:27px}.hbn-audit-table{margin:0 -9px}}@media(max-width:430px){.hbn-audit-cards{grid-template-columns:1fr}}

/* Bibliography on lessons and answer reviews. */
.hbn-citations{background:#f8fafc;border:1px solid #dce5f0;border-radius:14px;padding:20px 22px;margin:24px 0 30px;color:#344054}
.hbn-citations h2{font-size:18px;margin:0 0 8px;color:#123454}
.hbn-citations>p{font-size:13px;margin:0 0 12px;line-height:1.6}
.hbn-citations ul{margin:0;padding-left:22px}
.hbn-citations li{font-size:14px;line-height:1.6;margin:0 0 12px}
.hbn-citations li:last-child{margin-bottom:0}
.hbn-citations li>a{font-weight:600;text-decoration:underline;text-underline-offset:2px;overflow-wrap:anywhere}
.hbn-citations li span{display:block;color:#55657a;font-size:12px}
.hbn-citations li small{display:block;font-size:12px;color:#68798a}
.result .hbn-citations{padding:13px 16px;margin:15px 0 0}
.result .hbn-citations h2{font-size:15px}
.result .hbn-citations>p{font-size:12px}
@media(max-width:600px){.hbn-citations{padding:16px}.hbn-citations h2{font-size:16px}}

.hbn-source-inline{font-size:12px;line-height:1.6;color:#506176;margin:12px 0 0;padding-top:10px;border-top:1px solid #dce5f0;overflow-wrap:anywhere}
.hbn-source-inline strong{font-size:12px;color:#314b6a}.hbn-source-inline a{text-decoration:underline;text-underline-offset:2px}.hbn-source-inline small{color:#68798a}


/* UI Refresh V19 — unified typography, color system, and polished layout */
:root{
  --font-sans:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --blue:#0f4aa1;
  --blue-strong:#0b3d87;
  --blue-soft:#edf4ff;
  --hero:#f7fbff;
  --ink:#13314f;
  --ink-2:#21496e;
  --muted:#5e7289;
  --surface:#ffffff;
  --surface-2:#f7fafe;
  --line:#dbe5f0;
  --line-strong:#c7d6e7;
  --success:#157347;
  --danger:#b5473f;
  --warning:#a46300;
  --radius-xs:10px;
  --radius-sm:14px;
  --radius-md:18px;
  --radius-lg:24px;
  --shadow:0 14px 38px rgba(20,57,96,.08);
  --shadow-sm:0 6px 20px rgba(15,53,92,.06);
}
html,body,button,input,select,textarea,table{font-family:var(--font-sans)!important;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{background:linear-gradient(180deg,#f8fbff 0,#ffffff 240px);color:var(--ink)}
h1,h2,h3,h4,h5,h6,.h1,.h2,.h3,.h4,.h5,.h6,.btn,.brand,nav a{font-family:var(--font-sans)!important;letter-spacing:-.02em}
p,li,label,small,span,strong,input,textarea,select,button,td,th{font-family:var(--font-sans)!important}
a{transition:color .18s ease,text-decoration-color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease}
.container{max-width:1180px}
.site-header{position:sticky;top:0;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(219,229,240,.9);box-shadow:0 8px 24px rgba(18,49,79,.04)}
.topline{height:4px;background:linear-gradient(90deg,#0f4aa1,#2f80ed,#58a6ff)}
.head{min-height:82px}
.brand{font-size:28px;font-weight:800;color:var(--ink);gap:12px}
.brand-mark{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,#0f4aa1,#2f80ed);box-shadow:0 10px 20px rgba(47,128,237,.22)}
.brand strong{color:#1f63d4}
.brand-suffix{font-size:12px;color:#68809a;font-weight:700;letter-spacing:0}
nav a{padding:8px 10px;border-radius:999px;color:var(--ink-2);font-size:14px;font-weight:700}
nav a:hover,nav a:focus-visible{text-decoration:none;background:#eef4fc;color:var(--blue)}
nav a.active{background:#eef4fc;color:var(--blue)}
.nav-toggle{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:12px;padding:10px 14px;font-weight:700;box-shadow:var(--shadow-sm)}
.btn{min-height:46px;padding:12px 20px;border-radius:14px;background:linear-gradient(180deg,#1362d5,#0f4aa1);border:1px solid #0f4aa1;box-shadow:0 12px 24px rgba(15,74,161,.18)}
.btn:hover{background:linear-gradient(180deg,#0f58c0,#0b3d87);box-shadow:0 14px 28px rgba(15,74,161,.24)}
.btn.outline{background:#fff;border-color:#bfd2ea;color:var(--blue);box-shadow:none}
.btn.outline:hover{background:#f4f8ff;border-color:#9ebde0;color:var(--blue)}
.btn.small{min-height:38px;padding:9px 14px;border-radius:12px}
.hero{padding:84px 0 76px;background:radial-gradient(circle at top left,rgba(47,128,237,.12),transparent 32%),linear-gradient(180deg,var(--hero),#ffffff 78%)}
.hero-grid{grid-template-columns:minmax(0,1.2fr) minmax(290px,.8fr);gap:34px}
.eyebrow,.kicker,.banner-kicker{font-size:12px;letter-spacing:.12em;color:#1f63d4}
h1{font-size:clamp(38px,5vw,64px);line-height:1.12;max-width:820px;margin-bottom:18px}
h2{font-size:clamp(28px,3vw,38px);line-height:1.18}
h3{font-size:22px;line-height:1.3}
.lead{font-size:19px;line-height:1.8;color:var(--muted)}
.actions{gap:14px}
.hero-panel,.card,.quiz,.result,.score-panel,.hbn-search-bar,.list-card,.banner,.hbn-career-teaser,.hbn-job-destination,.quiz-toolbar,.hbn-citations{box-shadow:var(--shadow-sm)}
.hero-panel{background:rgba(255,255,255,.95);border:1px solid rgba(219,229,240,.9);border-radius:22px;padding:30px}
.hero-panel .big{font-size:58px;color:#1f63d4}
.panel-item{border-top:1px solid var(--line);padding:18px 0}
.panel-item .icon,.icon-step{background:#edf4ff;color:#1f63d4;border-radius:12px}
.section,.content{padding-top:72px;padding-bottom:72px}
.section.muted{background:#f8fbff}
.page-hero{padding:38px 0 26px;background:linear-gradient(180deg,#f7fbff 0,#f2f8ff 100%)}
.page-hero h1{font-size:clamp(32px,4vw,44px);max-width:none}
.card{background:linear-gradient(180deg,#ffffff 0,#fcfdff 100%);border:1px solid var(--line);border-radius:20px;padding:28px}
.card:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
.card p,.section-title p,.smallmuted,.hbn-jobs-layout p,.hbn-job-guide li,.muted-label,.option-en,.hbn-result-heading span{color:var(--muted)}
.grid{gap:22px}
.banner{border-radius:24px;padding:36px 40px;background:linear-gradient(135deg,#0f4aa1,#173d83 70%)}
.banner .btn{background:#fff;color:var(--blue);border-color:#fff;box-shadow:none}
.banner .btn:hover{background:#f2f7ff}
.list-card{padding:20px 22px;border-radius:16px;background:#fff;border:1px solid var(--line)}
.notice{border-left:4px solid #1f63d4;background:#f4f9ff;border-radius:12px;padding:15px 18px}
.quiz-toolbar{top:92px;border-radius:16px;padding:16px 18px;background:rgba(255,255,255,.97);backdrop-filter:blur(12px)}
.quiz-clock strong{font-size:30px;color:#1f63d4}
.quiz{padding:24px 24px 18px;border-radius:18px;background:#fff;border:1px solid var(--line)}
.choice{border-radius:14px;padding:13px 14px;transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease}
.choice:hover{border-color:#adc6e3;background:#f8fbff}
.choice:has(input:checked){border-color:#1f63d4;background:#eef5ff;box-shadow:inset 0 0 0 1px rgba(31,99,212,.08)}
.answer-option{border-radius:12px}
.answer-good{background:#e9f7ef;color:#15603c}.answer-wrong{background:#fff2ef;color:#a33e34}
.score{font-size:56px;color:#1f63d4}
.score-panel{border-radius:20px;background:linear-gradient(180deg,#f5faff,#eef5fe)}
.result{border-radius:18px}
.result.correct{border-left-color:var(--success)}
.result.incorrect{border-left-color:var(--danger)}
.footer{padding:42px 0;background:#fff;border-top:1px solid var(--line)}
.footer-grid{align-items:flex-start}
.footer a{color:var(--ink-2);font-weight:600}
.hbn-search-band{background:transparent;padding:0 0 6px;border-bottom:none}
.hbn-search-bar{padding:22px;border-radius:20px;border-color:var(--line-strong)}
.hbn-search-controls input,.hbn-search-controls select,.admin-field input:not([type=checkbox]):not([type=radio]),.admin-field select,.admin-field textarea,.admin-list-head input,.hbn-guide-form input:not([type=checkbox]),.hbn-guide-form select,.hbn-guide-form textarea{border-radius:14px;border:1px solid #c9d8e8;padding:13px 15px;background:#fff;color:var(--ink);transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease}
.hbn-search-controls input:focus,.hbn-search-controls select:focus,.admin-field input:not([type=checkbox]):not([type=radio]):focus,.admin-field select:focus,.admin-field textarea:focus,.admin-list-head input:focus,.hbn-guide-form input:not([type=checkbox]):focus,.hbn-guide-form select:focus,.hbn-guide-form textarea:focus{outline:none;border-color:#85aee0;box-shadow:0 0 0 4px rgba(15,74,161,.10)}
.hbn-career-teaser,.hbn-job-card,.hbn-job-guide{border-radius:22px}
.hbn-career-teaser{background:linear-gradient(135deg,#f4f8ff,#ffffff 68%);border:1px solid var(--line)}
.hbn-career-steps span{border-radius:14px;background:#fff;box-shadow:var(--shadow-sm)}
.hbn-quiz-map{background:#f7faff;border-radius:16px}
.hbn-quiz-map a{border-radius:12px}
.hbn-quiz-map a.answered{background:linear-gradient(180deg,#1362d5,#0f4aa1)}
/* Admin */
.admin-main{max-width:1180px;padding-top:42px;padding-bottom:96px}
.admin-main>h1{font-size:clamp(34px,4.2vw,54px);margin-bottom:10px}
.admin-main .lead,.admin-main .smallmuted{color:var(--muted)}
.admin-summary .card,.admin-editor,.hbn-audit-cards .card{border-radius:22px}
.admin-list-head{margin-top:26px;margin-bottom:16px}
.admin-list-row{padding:16px 18px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow-sm);margin-bottom:12px}
.admin-list-row .smallmuted{margin-top:4px}
.admin-field-grid{gap:18px 20px}
.admin-field label,.hbn-guide-form label{color:var(--ink);font-weight:700}
.admin-check{padding:10px 0}
.admin-main table{width:100%;border-collapse:separate;border-spacing:0 12px}
.admin-main table thead th{font-size:13px;color:var(--muted);font-weight:700;padding:0 12px 6px}
.admin-main table tbody tr{background:#fff;box-shadow:var(--shadow-sm)}
.admin-main table tbody td{padding:14px 12px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.admin-main table tbody td:first-child{border-left:1px solid var(--line);border-radius:14px 0 0 14px}
.admin-main table tbody td:last-child{border-right:1px solid var(--line);border-radius:0 14px 14px 0}
.hbn-admin-header .head nav{background:rgba(255,255,255,.98);backdrop-filter:blur(14px);border:1px solid var(--line);border-radius:0 0 20px 20px;padding:16px}
.hbn-admin-header .head nav a{font-weight:700;border-radius:12px;padding:11px 12px}
.hbn-audit-cards h2{font-size:38px;color:#1f63d4}
.hbn-pass-report{border-radius:16px;border-color:var(--line-strong);background:#fff}
.hbn-citations,.hbn-source-inline{background:#f8fbff;border-color:var(--line);border-radius:16px}
.hbn-source-inline{padding:12px 14px}
/* Responsive polish */
@media (max-width:1120px){.site-header .head nav{gap:8px}.site-header .head nav a{font-size:13px;padding:8px}.brand{font-size:25px}.hero-grid{gap:24px}}
@media (max-width:980px){.head{min-height:72px}.site-header .head nav,.hbn-admin-header .head nav{box-shadow:0 18px 32px rgba(18,49,79,.1)}.site-header .head nav a{font-size:15px}.hero{padding:54px 0 46px}}
@media (max-width:760px){body{font-size:15px}.section,.content{padding-top:52px;padding-bottom:52px}.hero-panel,.card,.hbn-search-bar,.banner{padding:22px}.quiz{padding:18px}.grid{grid-template-columns:1fr}.admin-field-grid{grid-template-columns:1fr}.footer{padding:30px 0}.quiz-toolbar{top:78px}}
@media (max-width:530px){.container{padding:0 16px}.brand{font-size:22px}.brand-mark{width:38px;height:38px;font-size:21px}.hero{padding-top:34px}h1{font-size:40px}.lead{font-size:17px}.actions .btn,.hbn-search-controls .btn{width:100%}.page-hero{padding-top:28px}.admin-main>h1{font-size:34px}.admin-list-row{padding:14px 15px}}

:root{--reading-width:820px;--focus-halo:0 0 0 4px rgba(15,74,161,.13)}
/* V19 refinement: learning, exam, result, member and editor surfaces */
.page-hero .container{position:relative}
.page-hero .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 11px;border:1px solid #d6e5fa;border-radius:999px;background:#fff;color:#0f4aa1;font-size:11px;letter-spacing:.055em}
.page-hero p.lead{max-width:780px;margin-bottom:0}
.page-hero+.content{background:linear-gradient(180deg,#fafcff,#fff 240px)}
.bread{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:11px 0;color:var(--muted)}
.bread a{font-weight:650}
/* Reading experience */
article.container.narrow:has(>.lesson-rich){max-width:var(--reading-width)}
.lesson-rich{color:#253b52;font-size:17px;line-height:1.98;letter-spacing:.002em}
.lesson-rich>p:first-child{font-size:18px;line-height:1.95;color:#324b66}
.lesson-rich p{margin:0 0 22px}
.lesson-rich h2,.lesson-rich h3,.lesson-rich h4{scroll-margin-top:130px;color:#163654;letter-spacing:-.025em}
.lesson-rich h2{font-size:27px;line-height:1.45;margin:40px 0 15px;padding-bottom:12px;border-bottom:1px solid #e4edf7}
.lesson-rich h3{font-size:21px;line-height:1.5;margin:30px 0 13px}
.lesson-rich h4{font-size:18px;margin:25px 0 10px}
.lesson-rich ul,.lesson-rich ol{margin:17px 0 27px;padding-left:26px}
.lesson-rich li{padding-left:6px;margin:11px 0}
.lesson-rich li::marker{color:#2869c4;font-weight:700}
.lesson-rich strong{color:#173a5b;font-weight:800}
.lesson-rich blockquote{margin:24px 0;padding:20px 23px;background:#f4f8ff;border-left:4px solid #246aca;border-radius:0 16px 16px 0;color:#285074}
.lesson-rich a{color:#0f55ad;text-underline-offset:4px;text-decoration-thickness:1px}
.lesson-rich img{max-width:100%;height:auto;border-radius:17px;box-shadow:var(--shadow-sm)}
.lesson-figure{margin:32px 0}.lesson-figure img{border-radius:17px}.lesson-figure figcaption{line-height:1.65;font-size:13px;margin-top:12px}
.lesson-nav{margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.lesson-nav a{min-width:0;border-radius:16px;background:#fff;padding:20px 21px;box-shadow:var(--shadow-sm);transition:border-color .18s,background .18s,transform .18s}
.lesson-nav a:hover{background:#f5f9ff;border-color:#a7c4e8;transform:translateY(-1px)}
.lesson-nav small{letter-spacing:.02em;margin-bottom:8px}
.hbn-lesson-progress{padding:26px;border:1px solid #bdd4f0;background:linear-gradient(135deg,#f6faff 0,#fff 85%)}
.hbn-lesson-progress h3{margin-top:0;font-size:21px}
.hbn-lesson-progress .hbn-admin-actions{margin-top:18px;gap:12px}
.hbn-lesson-progress .hbn-admin-actions .btn{white-space:normal}
.hbn-citations{background:#f8fbff;border:1px solid #dbe6f3;border-radius:18px;padding:24px 26px}
.hbn-citations h2{font-size:19px;margin-bottom:12px;line-height:1.4}
.hbn-citations>p{font-size:13px;line-height:1.7}
.hbn-citations ul{padding-left:20px}.hbn-citations li{line-height:1.75;margin-bottom:14px}.hbn-citations li::marker{color:#3672bf}
.hbn-citations li>a{font-weight:700;text-underline-offset:3px}
.hbn-source-inline{border-radius:14px;background:#f6f9fe;padding:14px 16px}
/* Exam catalog */
.hbn-exam-search{max-width:100%;margin:0 0 28px;background:linear-gradient(145deg,#f8fbff,#fff);border-color:#d6e3f3;padding:24px 26px}
.hbn-exam-search .admin-field-grid{grid-template-columns:repeat(2,minmax(0,1fr));align-items:end}
.hbn-exam-search .admin-field label{margin:0 0 9px;font-weight:750;color:#254463}
.hbn-exam-search .actions{margin-top:17px;gap:9px}
.hbn-exam-search+.grid>.card{display:flex;flex-direction:column;align-items:flex-start;min-height:250px}
.hbn-exam-search+.grid>.card .kicker{background:#edf4ff;padding:5px 10px;border-radius:999px;color:#1359af;margin-bottom:12px}
.hbn-exam-search+.grid>.card h3{margin:0 0 12px;line-height:1.38}
.hbn-exam-search+.grid>.card p.smallmuted{margin-top:auto;padding-top:14px;font-size:13px;font-weight:600}
.hbn-exam-search+.grid>.card .btn{margin-top:9px}
/* Quiz controls */
.quiz-toolbar{background:rgba(255,255,255,.97);box-shadow:0 12px 30px rgba(18,54,89,.11);border:1px solid #cbdbea;gap:20px;top:91px}
.quiz-toolbar>div{min-width:0}
.quiz-toolbar [data-quiz-progress]{font-weight:800;color:#1a4878}
.quiz-toolbar [data-quiz-save-status]{color:#52708e;font-size:12px;line-height:1.5;max-width:420px}
.quiz-clock{padding:10px 15px;border-radius:13px;background:#edf5ff;border:1px solid #dce9f8}
.quiz-clock span{text-transform:uppercase;letter-spacing:.065em;font-size:10px;color:#527394;font-weight:700}
.quiz-clock strong{font-size:29px;color:#0f4aa1}
.quiz-clock strong.urgent{color:#bf4439}
.hbn-quiz-map{background:#f8fbff;border-color:#d9e6f4;padding:15px 17px;gap:9px}
.hbn-quiz-map::before{width:100%;margin:0 0 5px;font-size:12px;color:#55718d;text-transform:uppercase;letter-spacing:.05em}
.hbn-quiz-map a{width:40px;height:40px;font-size:14px;background:#fff;border:1px solid #c8d9ea;transition:transform .15s,border-color .15s,box-shadow .15s}
.hbn-quiz-map a:hover{border-color:#2272d0;transform:translateY(-1px);box-shadow:0 5px 14px rgba(15,74,161,.12);text-decoration:none}
.hbn-quiz-map a.answered{box-shadow:0 6px 12px rgba(15,74,161,.16)}
.quiz{padding:28px 28px 25px;border:1px solid #d9e4ef;border-radius:20px;margin:21px 0;scroll-margin-top:174px}
.quiz legend{font-size:18px;line-height:1.65;font-weight:800;color:#153655;padding-bottom:15px}
.quiz .choice{position:relative;align-items:flex-start;border-radius:15px;background:#fcfdff;min-height:55px;padding:15px 17px;line-height:1.7;gap:14px;margin:10px 0}
.quiz .choice input{flex:none;margin-top:5px;width:18px;height:18px}
.quiz .choice:hover{background:#f3f8ff;border-color:#9cbfe9}
.quiz .choice:has(input:checked){background:#ebf4ff;border-color:#2774ca;box-shadow:0 0 0 1px rgba(39,116,202,.12)}
.quiz .option-en{font-size:13px;line-height:1.6;margin-top:5px;color:#5d728b}
.quiz-actions{gap:11px;margin-top:24px}
.quiz-actions .btn{min-height:48px}
/* Results and history */
.score-panel{position:relative;border-radius:24px;background:linear-gradient(135deg,#edf5ff,#fff 90%);border:1px solid #c9ddf5;padding:33px 35px;overflow:hidden}
.score-panel::after{content:"";position:absolute;right:-48px;top:-62px;width:190px;height:190px;border:28px solid rgba(30,96,188,.07);border-radius:50%;pointer-events:none}
.score-panel>span{position:relative;z-index:1;display:block;font-weight:750;color:#385878}
.score-panel .score{position:relative;z-index:1;margin:14px 0 10px;color:#0f4aa1;font-size:clamp(44px,6vw,64px);letter-spacing:-.035em}
.score-panel>strong{position:relative;z-index:1;display:inline-block;border:1px solid #cfe3f9;background:#fff;color:#205c9c;padding:7px 11px;border-radius:999px;font-size:13px}
.result{padding:28px 30px;border-radius:20px;background:#fff;margin:20px 0;border:1px solid var(--line)}
.result.correct{border-left:5px solid #21845c}.result.incorrect{border-left:5px solid #c15d40}
.result h3{font-size:19px;line-height:1.6;margin:0 0 13px}
.result .answer-status{display:inline-flex;font-size:13px;border-radius:999px;padding:5px 11px;background:#f2f5f9;color:#324c65;margin:5px 0 13px}
.result.correct .answer-status{background:#e8f5ed;color:#166039}
.result.incorrect .answer-status{background:#fff0e9;color:#99472a}
.result .answer-option{padding:13px 16px;margin:10px 0;background:#f8fafc;border:1px solid #edf1f5;border-radius:13px;line-height:1.6;gap:20px}
.result .answer-option.answer-good{background:#ecf8f1;border-color:#c7ead5;color:#1a633e}
.result .answer-option.answer-wrong{background:#fff0ed;border-color:#f4d1c9;color:#a04434}
.result .answer-option strong{font-size:12px;flex:none}
.result .explanation{background:#f6faff;border-radius:14px;padding:17px 20px;border:1px solid #e1ebf8;margin-top:17px;line-height:1.85;color:#31506d}
.result .hbn-citations{margin-top:18px}
.history-list .list-card{padding:20px 24px;border-radius:18px;align-items:center}
.history-list .list-card>div:first-child{min-width:0}
.history-list .list-card strong{line-height:1.6}
.history-list .history-score{font-size:22px;font-weight:800;white-space:nowrap}
.history-list .link{font-weight:750;white-space:nowrap}
/* Member area */
.account-panel{max-width:570px;border-radius:24px;padding:34px 36px;border-color:#d1e1f2;background:linear-gradient(180deg,#fff,#fcfdff);box-shadow:0 18px 45px rgba(18,54,89,.09)}
.account-tabs{margin-bottom:26px;gap:0;border-bottom:1px solid #dbe6f2}
.account-tabs a{flex:1;text-align:center;font-weight:800;padding:0 10px 16px;color:#657b92}
.account-tabs a.current{border-bottom:3px solid #0f4aa1;color:#0f4aa1}
.member-form{gap:10px}
.member-form label{font-size:14px;color:#254563;font-weight:750;margin-top:10px}
.member-form input{min-height:50px;border:1px solid #cbdaea;border-radius:13px;padding:13px 15px;background:#fff;transition:border-color .18s,box-shadow .18s}
.member-form input:focus{border-color:#8cb8e9;outline:none;box-shadow:var(--focus-halo)}
.member-form .btn{margin-top:18px}
.account-footnote{padding-top:19px;margin-top:24px;border-top:1px solid var(--line);line-height:1.7}
.account-feature-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:0 0 26px}
.account-feature{display:flex;flex-direction:column;align-items:flex-start;min-height:198px;border-color:#d9e5f1;padding:26px 28px}
.account-feature h3{font-size:21px;margin:0 0 12px;color:#1d4169}
.account-feature p{margin-bottom:18px;line-height:1.7}
.account-feature .link{margin-top:auto;color:#1159b4}
.account-feature:hover{border-color:#99bdeb;background:#f8fbff;text-decoration:none}
.hbn-verification-panel{border-color:#d2e3f7;background:linear-gradient(120deg,#f5faff,#fff)}
.hbn-verification-panel h2{font-size:22px;margin:0 0 9px}
.account-settings{gap:18px;align-items:start}
.account-settings .card{height:100%;padding:28px}
.account-settings h2{font-size:23px}
.account-logout{display:flex;justify-content:flex-end;margin-top:26px}
.hbn-learning-stats{gap:15px;margin-bottom:25px}
.hbn-learning-stats .card{padding:25px 12px;border-radius:20px;box-shadow:var(--shadow-sm)}
.hbn-learning-stats strong{font-size:clamp(27px,3vw,37px);color:#1159b4;line-height:1.3}
.hbn-learning-stats span{font-size:13px;line-height:1.5;display:block;color:#637994}
.hbn-study-item{padding:15px 0;line-height:1.6}
.hbn-study-item a{display:inline-block;font-weight:750}
.hbn-study-item small{margin-top:6px}
.hbn-topic-stat{flex-wrap:wrap;padding:14px 0;gap:7px 12px}
.hbn-topic-stat span{font-weight:650;color:#234668}
.hbn-topic-stat strong{font-size:16px;color:#0f4aa1}
.hbn-topic-stat small{width:100%;font-size:12px}
.study-wrong-list{gap:16px}.study-wrong-list .card{padding:25px 27px}
.study-wrong-list .card h3{line-height:1.55;font-size:19px}
/* Admin authoring workflow */
.admin-main{line-height:1.7}
.admin-main>.notice{margin:18px 0 26px}
.admin-editor{border:1px solid #d7e5f2;border-radius:23px;padding:30px;box-shadow:var(--shadow-sm);background:#fff}
.admin-editor h2{font-size:26px;margin-bottom:20px}
.admin-editor h3{font-size:20px;color:#224767;margin-top:26px}
.admin-field-grid{gap:18px 20px}
.admin-field label{display:block;color:#254665;font-weight:750;font-size:14px;margin-bottom:9px}
.admin-field input:not([type=checkbox]):not([type=radio]),.admin-field select,.admin-field textarea{min-height:48px}
.admin-field textarea{line-height:1.7;min-height:120px}
.admin-list-head{margin-top:34px;margin-bottom:17px}
.admin-list-head h2{font-size:26px;margin-bottom:0}
.admin-list-head form{min-width:0}
.admin-list-row{padding:19px 22px;gap:20px;align-items:center;border-radius:17px}
.admin-list-row>div{min-width:0;overflow-wrap:anywhere}
.admin-list-row a{font-weight:750}
.admin-list-row .status-label{white-space:normal;border:1px solid #dce8f4;background:#f7fbff;padding:5px 10px;border-radius:999px;font-size:11px}
.lesson-editor-tools{background:#f2f7ff;border:1px solid #ccddf0;border-bottom:0;border-radius:13px 13px 0 0;padding:12px;gap:8px}
.lesson-editor-tools button{background:#fff;border:1px solid #c6d9ee;border-radius:10px;padding:8px 13px;font-size:13px;font-weight:750;min-height:36px}
.lesson-editor-tools button:hover,.lesson-editor-tools button:focus-visible{border-color:#7da7d9;background:#e8f3ff}
.admin-field .lesson-editor-tools+textarea{min-height:430px;border-radius:0 0 13px 13px;border-top-color:#ccddf0;padding:18px;line-height:1.85}
.lesson-upload-panel{padding:25px 28px}
.lesson-preview{max-width:900px;padding:36px}
.lesson-insert-result{border-radius:15px;background:#f9fcff}
.hbn-question-filters{padding:24px 26px;border-radius:20px}
.question-picker{border-color:#d5e3f2;background:#fcfdff;padding:6px 17px;border-radius:16px}
.question-choice{padding:16px 10px;border-bottom:1px solid #e3ebf3;line-height:1.65;border-radius:8px}
.question-choice:hover{background:#f0f6ff}
.question-choice input{margin-top:7px}
.question-choice small{font-size:12px;line-height:1.7}
.hbn-pass-summary>div{border-radius:17px;border:1px solid #e0eaf5;background:#f8fbff;padding:24px}
.hbn-check-row{padding:17px 0;gap:15px}
.hbn-check-row .smallmuted{line-height:1.7}
.hbn-audit-table{border:1px solid #e2ebf5;border-radius:16px;background:#fff}
.hbn-audit-table table{border-collapse:collapse}
.hbn-audit-table th{background:#f5f9ff;font-weight:750}
.hbn-audit-table td,.hbn-audit-table th{padding:15px 16px}
/* Responsive UI contracts */
@media(max-width:980px){.quiz-toolbar{top:82px}.quiz{scroll-margin-top:162px}.admin-editor{padding:24px}}
@media(max-width:850px){.account-feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.account-settings{grid-template-columns:1fr}.hbn-exam-search .admin-field-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:690px){
  .lesson-rich{font-size:16px;line-height:1.92}
  .lesson-rich>p:first-child{font-size:17px}
  .lesson-rich h2{font-size:24px;margin-top:32px}
  .lesson-rich h3{font-size:20px}
  .hbn-citations{padding:20px 18px}
  .hbn-exam-search .admin-field-grid{grid-template-columns:1fr}
  .quiz-toolbar{top:75px;gap:10px;padding:11px 12px}
  .quiz-clock{padding:8px 10px}.quiz-clock strong{font-size:23px}
  .hbn-quiz-map{padding:12px;gap:8px}.hbn-quiz-map a{width:39px;height:39px}
  .quiz{padding:20px 17px;margin:17px 0;scroll-margin-top:160px}
  .quiz legend{font-size:16px;line-height:1.6}
  .quiz .choice{padding:13px 12px;gap:11px}
  .result{padding:23px 18px}.result h3{font-size:17px}
  .score-panel{padding:27px 23px}
  .history-list .list-card{padding:18px}
  .account-feature-grid{grid-template-columns:1fr}
  .account-feature{min-height:0;padding:23px 24px}
  .account-settings .card{padding:22px}
  .admin-editor{padding:20px 17px}
  .admin-list-head form{width:100%}
  .admin-list-row{padding:17px 15px;align-items:flex-start;flex-direction:column;gap:8px}
  .hbn-question-filters{padding:20px 17px}
  .lesson-editor-tools{padding:9px;gap:6px}.lesson-editor-tools button{min-height:36px;padding:7px 10px}
  .admin-field .lesson-editor-tools+textarea{min-height:320px;padding:14px}
}
@media(max-width:530px){
  .account-panel{padding:22px 18px}
  .hbn-learning-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hbn-learning-stats .card{padding:19px 10px}
  .hbn-lesson-progress{padding:21px 18px}
  .hbn-lesson-progress .hbn-admin-actions{align-items:stretch;flex-direction:column}
  .hbn-lesson-progress .hbn-admin-actions form,.hbn-lesson-progress .hbn-admin-actions .btn{width:100%}
  .quiz-toolbar [data-quiz-save-status]{max-width:220px}
  .quiz-actions{display:grid;grid-template-columns:1fr;gap:10px}
  .quiz-actions .btn{width:100%}
  .history-list .history-actions{width:100%;justify-content:space-between}
}
@media(prefers-reduced-motion:reduce){.card,.lesson-nav a,.hbn-quiz-map a{transition:none!important;transform:none!important}}


/* HocBangNail V48 — mobile-first layout hardening; public + admin, presentation only. */
@media (max-width:980px){
  .site-header{z-index:80}
  .site-header .head{position:relative;gap:12px}
  .site-header .head nav{z-index:100;left:0;right:0;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
  .site-header .head nav a{overflow-wrap:anywhere}
  .hbn-admin-header .head nav.open{display:grid;background:#fff}
  .hbn-admin-header .head nav{grid-template-columns:repeat(2,minmax(0,1fr));max-height:calc(100dvh - 72px)}
  .hbn-admin-header .head nav a{display:flex;align-items:center;justify-content:flex-start;min-width:0;line-height:1.4}
}
@media (max-width:768px){
  html,body{max-width:100%}
  body{overflow-x:clip;-webkit-text-size-adjust:100%;text-size-adjust:100%}
  .container{width:100%;max-width:100%;min-width:0}
  main,main>section,article,aside,.card,.admin-main,.admin-editor,.admin-list-row,fieldset,.list-card{min-width:0;max-width:100%}
  img,video,iframe,svg{max-width:100%;height:auto}
  :is(.card,.admin-editor,.admin-list-row,.notice,.result,.quiz,.score-panel,.lesson-rich,.hbn-citations,.hbn-guide-article) {overflow-wrap:anywhere}
  .page-hero h1,.admin-main>h1{overflow-wrap:anywhere}
  .lead{line-height:1.6}
  .section,.content{padding-top:34px;padding-bottom:40px}
  .page-hero{padding-top:26px;padding-bottom:20px}
  .page-hero h1{font-size:clamp(26px,6vw,36px);line-height:1.3}
  .hero{padding:36px 0 42px}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:19px}
  .hero-grid>div,.hero-grid>aside{min-width:0;max-width:100%}
  .hero h1{font-size:clamp(31px,7vw,44px);line-height:1.22}
  .hero-panel{padding:20px}
  .banner{padding:22px;gap:17px}
  .section-title{gap:11px;margin-bottom:19px}
  .grid,.hbn-result-grid{grid-template-columns:1fr;gap:14px}
  .card{padding:20px;border-radius:16px}
  .card:hover{transform:none}
  .list-card{padding:17px;gap:12px}
  .notice{padding:13px 15px}
  .actions,.quiz-actions,.hbn-admin-actions{gap:10px}
  .actions>*{max-width:100%;min-width:0}
  .btn{min-height:44px;max-width:100%;white-space:normal;line-height:1.35;overflow-wrap:anywhere}
  a,button,input,textarea,select{touch-action:manipulation}
  input:not([type=checkbox]):not([type=radio]),select,textarea{max-width:100%;min-width:0}
  .footer-grid{gap:12px}
  .footer-grid>div{min-width:0}
  .footer-grid a{overflow-wrap:anywhere}
  .lesson-rich{font-size:16px;line-height:1.8}
  .lesson-rich :is(pre,code){max-width:100%;white-space:pre-wrap;overflow-wrap:anywhere}
  .lesson-rich :is(table){display:block;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .lesson-nav a{min-width:0;max-width:100%;overflow-wrap:anywhere}
  .quiz-toolbar{top:74px;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:10px;padding:12px;border-radius:13px}
  .quiz-toolbar>div:first-child{min-width:0;overflow-wrap:anywhere}
  .quiz-toolbar .smallmuted{font-size:12px;line-height:1.45;margin:3px 0 0;overflow-wrap:anywhere}
  .quiz-toolbar .quiz-clock{align-self:start;min-width:100px;text-align:center;padding:8px 10px;white-space:normal}
  .quiz-clock strong{font-size:25px;white-space:nowrap}
  .hbn-quiz-map{gap:7px;padding:11px;scroll-margin-top:160px}
  .hbn-quiz-map a{min-width:39px;min-height:39px;width:39px;height:39px}
  .quiz{padding:17px 15px;margin:16px 0;scroll-margin-top:168px}
  .quiz legend{font-size:16px;line-height:1.55}
  .quiz .choice{padding:13px 12px;gap:11px;min-height:48px}
  .quiz .choice input{flex:0 0 auto;margin-top:4px;width:18px;height:18px}
  .quiz .choice span{min-width:0;overflow-wrap:anywhere}
  .quiz-actions{margin-top:18px}
  .result,.score-panel{padding:19px 16px}
  .answer-option,.result .answer-option{flex-wrap:wrap;gap:7px;padding:11px 12px}
  .answer-option>span{min-width:0;flex:1 1 100%}
  .answer-option>strong{white-space:normal}
  .history-list .list-card{flex-direction:column;align-items:stretch}
  .history-list .history-actions{width:100%;gap:12px}
  .hbn-learning-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .hbn-learning-stats .card{min-width:0}
  .account-panel{width:100%;max-width:100%}
  .account-feature-grid,.account-settings{grid-template-columns:1fr;gap:12px}
  .account-tabs{min-width:0;gap:0}
  .account-tabs a{min-width:0;overflow-wrap:anywhere;line-height:1.4}
  .admin-main{width:100%;max-width:100%;padding-top:24px;padding-bottom:65px}
  .admin-main>h1{font-size:clamp(27px,6vw,35px);line-height:1.28}
  .admin-main>.lead{font-size:15px;line-height:1.65}
  .admin-main h2,.admin-editor h2{font-size:clamp(20px,5vw,25px);line-height:1.35}
  .admin-main h3{font-size:18px;line-height:1.45}
  .admin-main .grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .admin-main .grid:not(.admin-summary):not(.hbn-audit-cards):not(.hbn-learning-stats){grid-template-columns:1fr}
  .admin-main .admin-summary{gap:10px;margin-top:17px;margin-bottom:18px}
  .admin-main .admin-summary .card{padding:16px 14px}
  .admin-main .admin-summary h2{font-size:clamp(26px,7vw,33px);margin:0 0 5px;line-height:1.15}
  .admin-main .admin-summary p{font-size:12px;line-height:1.5;margin:0}
  .admin-main .card{margin-bottom:15px}
  .admin-editor{padding:19px 16px;margin:14px 0 21px}
  .admin-list-row{padding:15px 13px;margin-bottom:10px;gap:9px}
  .admin-field-grid{grid-template-columns:1fr;gap:12px}
  .admin-field-grid .wide{grid-column:auto}
  .admin-field label{margin-bottom:5px}
  .admin-list-head{flex-direction:column;align-items:stretch;gap:12px}
  .admin-list-head form,.admin-list-head input{width:100%}
  .admin-main .admin-check,.hbn-audit-manual{display:flex;align-items:flex-start;gap:10px;line-height:1.55;padding-top:11px;padding-bottom:11px;overflow-wrap:anywhere}
  .admin-main .admin-check input[type=checkbox],.hbn-audit-manual input[type=checkbox]{flex:0 0 21px;width:21px;height:21px;margin-top:3px;accent-color:var(--blue)}
  .admin-main details{min-width:0;max-width:100%}
  .admin-main details>summary{cursor:pointer;overflow-wrap:anywhere;line-height:1.6;padding:4px 0;list-style-position:inside}
  .admin-main table{display:block;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;overscroll-behavior-inline:contain}
  .admin-main table :is(th,td){white-space:normal;min-width:90px;overflow-wrap:anywhere}
  .hbn-audit-table{max-width:100%;overflow-x:auto}
  .admin-main .hbn-pass-report{width:100%;max-width:100%;font-size:13px}
  .lesson-editor-tools{display:flex;flex-wrap:wrap;gap:6px}
  .lesson-editor-tools button{min-height:41px}
  .hbn-question-filters,.hbn-exam-search{padding:16px}
}
@media (max-width:540px){
  .container{padding-left:16px;padding-right:16px}
  .site-header .head{min-height:64px}
  .site-header .brand{font-size:20px;letter-spacing:-.75px;gap:7px;min-width:0}
  .site-header .brand-mark{width:35px;height:35px;font-size:20px;flex:0 0 35px}
  .site-header .brand-suffix{font-size:10px}
  .site-header .nav-toggle{min-height:44px;min-width:44px;padding:9px 11px;flex-shrink:0;font-size:13px}
  .site-header .head nav{left:0;right:0;top:100%;max-height:calc(100dvh - 64px);padding:12px 16px;overflow-y:auto}
  .hbn-admin-header .head nav{grid-template-columns:repeat(2,minmax(0,1fr));left:0;right:0;gap:7px}
  .hbn-admin-header .head nav a{font-size:13px;min-height:44px;padding:9px 10px}
  .site-header:not(.hbn-admin-header) .head nav{align-items:stretch}
  .hero h1{font-size:clamp(29px,8vw,39px)}
  .lead{font-size:16px}
  .page-hero h1{font-size:clamp(26px,7vw,33px)}
  .section-title h2{font-size:25px}
  .section,.content{padding-top:27px;padding-bottom:35px}
  .actions{display:flex;flex-wrap:wrap}
  .actions>.btn,.actions>button.btn{width:100%;flex:1 1 100%}
  .actions>.link{flex-basis:100%}
  .hbn-search-controls{display:flex;flex-direction:column;gap:10px}
  .hbn-search-controls>input,.hbn-search-controls>select,.hbn-search-controls>.btn{width:100%}
  .admin-main .actions>.btn,.admin-main .actions>button.btn{width:100%}
  .admin-main :is(input:not([type=checkbox]):not([type=radio]),textarea,select),
  .member-form input,.hbn-search-controls input,.hbn-search-controls select {font-size:16px;min-height:44px}
  .admin-main select{max-width:100%}
  .quiz-toolbar{top:65px;padding:10px 11px;gap:8px}
  .quiz-clock strong{font-size:23px}
  .quiz-toolbar .quiz-clock{padding:7px 8px;min-width:93px}
  .quiz-toolbar .quiz-clock span{font-size:11px;line-height:1.4;white-space:normal}
  .quiz-toolbar [data-quiz-save-status]{max-width:none;font-size:12px;line-height:1.45}
  .hbn-quiz-map a{width:37px;height:37px;min-width:37px;min-height:37px}
  .quiz{scroll-margin-top:150px}
  .quiz-actions{display:flex;flex-direction:column;align-items:stretch}
  .quiz-actions .btn{width:100%}
  .result .explanation{padding:13px}
  .history-list .list-card{padding:15px}
  .account-panel{padding:21px 17px}
  .admin-main .admin-summary{grid-template-columns:repeat(2,minmax(0,1fr))}
  .admin-main .admin-summary .card{padding:14px 12px}
  .admin-main .admin-summary h2{font-size:28px}
  .admin-main .card{padding:17px 15px}
  .admin-main .admin-editor{padding:17px 14px}
  .admin-main .admin-list-row{padding:14px 12px}
  .admin-main .hbn-audit-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .admin-main .hbn-audit-cards .card{padding:13px}
  .admin-main .hbn-audit-cards h2{font-size:25px}
  .admin-main .admin-list-row>.btn,.admin-main .admin-list-row>a.btn{align-self:stretch;text-align:center}
  .admin-main .hbn-pass-report{min-height:185px}
  .footer{padding-top:24px;padding-bottom:28px}
  .footer-grid{flex-direction:column}
}
@media (max-width:360px){
  .container{padding-left:12px;padding-right:12px}
  .site-header .head nav{left:0;right:0}
  .site-header .brand{font-size:18px;gap:5px}
  .site-header .brand-mark{width:31px;height:31px;flex-basis:31px;font-size:17px}
  .site-header .brand-suffix{font-size:9px}
  .site-header .nav-toggle{padding:8px 9px}
  .hbn-admin-header .head nav{left:0;right:0}
  .hbn-admin-header .head nav a{font-size:12px;padding:8px}
  .quiz-toolbar{grid-template-columns:minmax(0,1fr) 82px}
  .quiz-toolbar .quiz-clock{min-width:82px;padding:7px 3px}
  .quiz-clock strong{font-size:21px}
  .admin-main .admin-summary .card{padding:12px 10px}
  .admin-main .admin-summary h2{font-size:25px}
}
@media(prefers-reduced-motion:reduce){.site-header .head nav{scroll-behavior:auto}}

/* V56: exam training uses US English as the primary prompt, Vietnamese as learning support. */
.hbn-vi-support{font-size:14px;line-height:1.65;color:#607189;margin:5px 0 12px}.quiz legend [lang="en-US"],.result h3 [lang="en-US"]{font-weight:800}.choice [lang="en-US"]{font-weight:650}.option-en{font-weight:400!important}

/* V95 Public English-first bilingual lessons */
.hbn95-title-en{display:block;color:#142f50;font-weight:800}
.hbn95-title-vi{display:block;margin-top:7px;color:#64758a;font-size:.72em;font-weight:550;letter-spacing:0;line-height:1.5}
.card .hbn95-title-en{font-size:inherit}
.card .hbn95-title-vi{font-size:14px}
.hbn95-content{display:grid;gap:28px}
.hbn95-chapter{border-bottom:1px solid #e4eaf3;padding:0 0 21px}
.hbn95-chapter:last-child{border-bottom:0}
.hbn95-chapter>h2{font-size:24px;margin-bottom:16px}
.hbn95-lang{display:block;color:#0057b8;font-size:11px;font-weight:800;letter-spacing:.085em;margin-bottom:9px}
.hbn95-en{color:#1b3853}
.hbn95-en h2,.hbn95-en h3{border:none;padding:0;margin:12px 0;font-size:22px}
.hbn95-en p{margin:0 0 15px}
.hbn95-vi{background:#f5f9ff;border-left:3px solid #0057b8;border-radius:0 12px 12px 0;padding:18px 22px;margin-top:17px;color:#364e67;font-size:.95em;line-height:1.85}
.hbn95-vi .hbn95-lang{color:#0057b8}
.hbn95-vi p:last-child{margin-bottom:0}
.hbn95-references{font-size:14px;color:#63758b;overflow-wrap:anywhere}
.hbn95-references h2{font-size:19px}
@media(max-width:600px){.hbn95-content{gap:20px}.hbn95-vi{padding:15px 16px}.hbn95-chapter>h2{font-size:22px}}

/* V102: Learner pathway completion and resume. Uses current brand style. */
.hbn102-path-summary{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;margin-bottom:1.5rem}
.hbn102-path-summary >div{flex:1;min-width:0}
.hbn102-path-summary progress{display:block;width:min(100%,540px);height:11px;margin-top:.6rem;accent-color:#0057b8}
.hbn102-path-summary .btn{white-space:nowrap}
.hbn102-lesson-card .kicker{display:block;margin-bottom:.55rem}
.hbn102-lesson-status{font-weight:700;font-size:.875rem;margin-top:.55rem}
.hbn102-resume{margin:0 0 1.1rem;padding:1rem 1.2rem}
.hbn102-resume p{margin:.35rem 0 .8rem}
@media(max-width:660px){.hbn102-path-summary{flex-direction:column;align-items:stretch}.hbn102-path-summary .btn{width:100%;text-align:center}}

/* V103: a learning path is actionable from the public list, including saved progress. */
.hbn103-course-card{display:flex;flex-direction:column;align-items:stretch}
.hbn103-course-card .hbn103-course-count{margin-top:auto;font-size:.9rem;line-height:1.5}
.hbn103-course-card progress{display:block;width:100%;height:10px;accent-color:#0057b8;margin:.4rem 0 .85rem}
.hbn103-course-actions{display:flex;flex-wrap:wrap;gap:.8rem;align-items:center;margin-top:1rem}
.hbn103-course-actions .btn{min-height:38px;display:inline-flex;align-items:center}
@media(max-width:560px){.hbn103-course-actions{flex-direction:column;align-items:stretch}.hbn103-course-actions .btn{justify-content:center}.hbn103-course-actions .link{text-align:center}}

/* V113: responsive, accessible learning guidance — white and royal blue only. */
.hbn113-study{margin:22px 0 27px;padding:24px}
.hbn113-study h2{font-size:24px;margin:0 0 8px}
.hbn113-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin:18px 0}
.hbn113-topic{border:1px solid var(--line);border-radius:12px;padding:17px;min-width:0;background:white}
.hbn113-topic-head{display:flex;justify-content:space-between;align-items:flex-start;gap:8px}
.hbn113-topic h3{font-size:17px;margin:0 0 6px}
.hbn113-topic-head strong{color:#0057b8;white-space:nowrap}
.hbn113-topic-head small{font-size:12px;font-weight:550}
.hbn113-topic p{margin:5px 0}
.hbn113-subhead{font-weight:750;font-size:13px}
.hbn113-topic ul{padding-left:20px;margin:7px 0 0}
.hbn113-topic li{margin:9px 0;line-height:1.5}
.hbn113-topic .hbn95-title-vi{display:block;font-size:12px}
@media(max-width:680px){.hbn113-grid{grid-template-columns:1fr}.hbn113-study{padding:16px}}

/* V114: scannable, mobile-first exam catalog without changing quiz/score data. */
.hbn-quiz-map::before{content:"Go to question:"}
.hbn114-catalog{margin-top:26px}
.hbn114-overview{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:16px;padding:0 0 20px;border-bottom:1px solid var(--line)}
.hbn114-overview h2{font-size:25px;margin:0 0 7px}
.hbn114-overview .smallmuted{margin:0}
.hbn114-jump{display:flex;flex-wrap:wrap;gap:8px}
.hbn114-jump a{border:1px solid #cadbf1;border-radius:10px;padding:8px 11px;color:var(--blue);font-size:13px;font-weight:700;background:white}
.hbn114-jump a:hover{text-decoration:none;background:#edf5ff}
.hbn114-jump span{display:inline-block;margin-left:6px;color:var(--muted);font-variant-numeric:tabular-nums}
.hbn114-section{padding-top:30px;scroll-margin-top:120px}
.hbn114-section-head{margin-bottom:17px}
.hbn114-section-head h2{font-size:25px;margin:0 0 5px}
.hbn114-section-head h2 span{font-size:15px;font-weight:600;color:var(--muted)}
.hbn114-section-head p{font-size:14px;color:var(--muted);margin:0}
.hbn114-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;align-items:stretch}
.hbn114-exam-card{display:flex;flex-direction:column;min-width:0;padding:22px}
.hbn114-exam-card h3{font-size:19px;line-height:1.35;margin:12px 0 10px}
.hbn114-exam-card .hbn95-title-vi{display:block;color:var(--muted);font-size:12px;margin-top:6px}
.hbn114-card-header{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.hbn114-card-header .kicker{letter-spacing:.025em;line-height:1.4}
.hbn114-count{font-size:12px;font-weight:800;color:var(--blue);border:1px solid #d2e2f4;background:var(--pale);border-radius:7px;padding:3px 7px;white-space:nowrap}
.hbn114-description{font-size:14px;line-height:1.6;overflow-wrap:anywhere}
.hbn114-card-footer{margin-top:auto;padding-top:12px}
.hbn114-card-footer .smallmuted{font-size:13px;margin:0 0 12px}
.hbn114-card-footer .btn{min-height:43px;width:100%}
@media(max-width:1000px){.hbn114-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.hbn114-grid{grid-template-columns:1fr}.hbn114-exam-card{padding:19px}.hbn114-section{padding-top:24px}.hbn114-overview h2,.hbn114-section-head h2{font-size:22px}.hbn114-jump{width:100%}.hbn114-jump a{flex:1;text-align:center}}

/* V115: optional accessible question-by-question practice; progressive enhancement only. */
.hbn115-toggle-wrap{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:13px 0 17px}
.hbn115-toggle{border:1px solid #aac7e8;background:#fff;color:#0f4aa1;padding:10px 15px;border-radius:11px;cursor:pointer;font-weight:800;font-size:14px}
.hbn115-toggle[aria-pressed="true"]{background:#edf5ff;border-color:#397fca}
.hbn115-toggle:focus-visible,.hbn115-nav-btn:focus-visible,.hbn115-question-link:focus-visible,.hbn115-back-btn:focus-visible{outline:3px solid #78aaff;outline-offset:2px}
.hbn115-mode-note{font-size:12px;color:#57718e}
.hbn115-navigation{border:1px solid #d5e3f2;border-radius:15px;background:#f6faff;padding:14px;margin:15px 0;scroll-margin-top:160px}
.hbn115-progressrow{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.hbn115-current-label{font-weight:800;font-size:14px;color:#10395f}
.hbn115-meter{height:9px;width:min(160px,40%);accent-color:#0f4aa1}
.hbn115-button-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.hbn115-nav-btn,.hbn115-question-link,.hbn115-back-btn{appearance:none;border:1px solid #b7cfea;border-radius:10px;background:white;color:#0f4aa1;font-weight:750;font-size:13px;padding:11px 14px;cursor:pointer;min-height:44px}
.hbn115-primary{background:#0f4aa1;color:#fff;border-color:#0f4aa1}
.hbn115-nav-btn:disabled{opacity:.44;cursor:default}
.hbn115-focus .quiz[hidden],.hbn115-navigation[hidden],.hbn115-review-panel[hidden]{display:none!important}
.hbn-quiz-map a.hbn115-active{border:2px solid #1a4f9c;box-shadow:0 0 0 2px #b8d9ff}
.hbn115-review-panel{border:1px solid #c8daee;border-radius:16px;background:white;padding:22px;margin:18px 0;scroll-margin-top:170px}
.hbn115-review-panel h2{font-size:23px;margin:0 0 10px}
.hbn115-review-panel h3{font-size:17px;margin:17px 0 9px}
.hbn115-review-lead{color:#355471}
.hbn115-unanswered-list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:15px}
.hbn115-all-done{color:#28587d}
.hbn115-vi-summary{display:block;margin-top:7px;color:#697b8b;font-size:.86em;line-height:1.5}
@media(max-width:760px){
  .hbn115-toggle-wrap{margin:8px 0 14px}
  .hbn115-mode-note{flex-basis:100%}
  .hbn115-navigation{padding:12px;margin:10px 0}
  .hbn115-button-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
  .hbn115-nav-btn{padding:11px 8px;white-space:normal;font-size:12px}
  .hbn115-review-panel{padding:16px;margin:14px 0}
}
@media(prefers-reduced-motion:reduce){.hbn115-nav-btn,.hbn115-toggle{transition:none!important}}


/* V116: contextual course → lesson → topic-practice continuity; read-only. */
.hbn116-bridge{margin:22px 0;padding:23px 25px;border:1px solid #cadcf2;box-shadow:none}
.hbn116-bridge .kicker{color:#0057b8}
.hbn116-bridge h2{font-size:22px;line-height:1.35;margin:8px 0 9px}
.hbn116-bridge p{margin:7px 0 11px;line-height:1.6}
.hbn116-bridge-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:15px}
.hbn116-bridge-actions .btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center}
.hbn116-scope{font-size:12px;margin:12px 0 0!important}
.hbn116-topic-followup{margin:13px 0 3px!important}
.hbn116-topic-followup .link{font-weight:750}
@media(max-width:640px){
 .hbn116-bridge{padding:18px 16px;margin:17px 0}
 .hbn116-bridge h2{font-size:20px}
 .hbn116-bridge-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
 .hbn116-bridge-actions .btn{font-size:12px;line-height:1.35;padding:11px 9px;min-width:0;text-align:center}
 .hbn116-bridge-actions .link{grid-column:1/-1;display:block;text-align:center;padding:8px 0}
}

/* V117: contextual read → review loop, touch accessible. */
.hbn117-question-bridge{border-left:3px solid #0057b8;background:#f4f8fd;padding:13px 15px;margin:16px 0;border-radius:0 10px 10px 0}
.hbn117-question-bridge .link{display:block;margin-top:6px;font-weight:700;line-height:1.45}
.hbn117-reading-label{font-size:12px;font-weight:700;letter-spacing:.01em;color:#194b80}
.hbn117-question-bridge p{margin:7px 0 0;font-size:12px;line-height:1.55}
.hbn117-return{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin:14px 0 18px}
.hbn117-return .btn,.hbn117-reading-resume .btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center}
.hbn117-reading-resume{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:7px 0 15px}
.hbn117-reading-resume [hidden]{display:none!important}
.result[id^="question-"]{scroll-margin-top:110px}
@media(max-width:640px){
 .hbn117-question-bridge{padding:13px 12px;margin:13px 0}
 .hbn117-return{display:grid;grid-template-columns:minmax(0,1fr);gap:5px}
 .hbn117-return .btn{white-space:normal;text-align:center;padding:12px 10px}
 .hbn117-reading-resume .btn{max-width:100%;font-size:12px;white-space:normal}
}

/* V118: educational explanation for a missed answer, mobile-first and independent of answer controls */
.hbn118-answer-lesson{margin:19px 0 16px;padding:20px;border:1px solid #b9d2ec;border-left:4px solid #0057b8;border-radius:14px;background:#f7faff;overflow-wrap:anywhere}
.hbn118-answer-lesson h4{margin:0 0 17px;font-size:19px;line-height:1.4;color:#083b78}
.hbn118-subtitle{font-size:13px;font-weight:500;color:#51657c}
.hbn118-lesson-part{border-top:1px solid #dae5f1;padding:14px 0 6px}
.hbn118-lesson-part p{margin:7px 0 9px;line-height:1.75;color:#233b55}
.hbn118-lesson-part p.hbn-vi-support{font-size:14px;color:#506781}
.hbn118-part-heading{display:block;font-size:14px;line-height:1.5;color:#083b78}
.hbn118-part-heading span{font-weight:500;color:#566b82}
.hbn118-right{border-left:3px solid #0057b8;padding-left:14px;background:#eef5ff;border-radius:0 8px 8px 0}
.hbn118-note{margin:14px 0 0!important;font-size:12px;color:#61738b!important}
@media(max-width:530px){.hbn118-answer-lesson{padding:14px;margin:14px 0}.hbn118-answer-lesson h4{font-size:17px}.hbn118-lesson-part{padding:12px 0 5px}.hbn118-right{padding-left:11px}}


/* V119: personalized learning dashboard. Neutral white and brand royal blue. */
.hbn119-plan{margin:16px 0 28px;padding:24px;border:1px solid #d0e0f0;background:#fff;box-shadow:none}
.hbn119-heading{display:flex;justify-content:space-between;align-items:start;gap:16px;margin-bottom:12px}
.hbn119-heading h2{font-size:clamp(21px,2.3vw,28px);margin:6px 0 7px;line-height:1.3}
.hbn119-heading p{margin:0;max-width:720px}
.hbn119-steps{padding:0;margin:14px 0 8px;list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}
.hbn119-steps>li{border:1px solid #d7e1eb;border-radius:13px;padding:16px;display:flex;align-items:flex-start;gap:12px;min-width:0}
.hbn119-count{display:inline-flex;align-items:center;justify-content:center;background:#0057b8;color:#fff;font-size:15px;font-weight:800;border-radius:50%;flex:none;width:31px;height:31px}
.hbn119-step-content{flex:1;min-width:0}
.hbn119-step-content>strong{display:block;font-size:15px;line-height:1.4;color:#162a45}
.hbn119-step-content p{margin:7px 0 9px;line-height:1.5;font-size:13px}
.hbn119-step-content a{font-weight:750;overflow-wrap:anywhere}
.hbn119-links{display:flex;flex-wrap:wrap;gap:8px 16px}
.hbn119-path-section{border-top:1px solid #d7e1eb;margin-top:21px;padding-top:16px}
.hbn119-path-section h3{font-size:19px;margin:0 0 4px}
.hbn119-path-section>.smallmuted{margin:0 0 12px}
.hbn119-path-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:13px 0 15px}
.hbn119-path{min-width:0;border:1px solid #d7e1eb;border-radius:13px;padding:15px}
.hbn119-path>strong{display:block;min-height:38px;line-height:1.4;color:#162a45}
.hbn119-progress-line{display:flex;justify-content:space-between;gap:7px;font-size:12px;color:#5b708b;margin:12px 0 6px}
.hbn119-progress-line b{color:#0057b8;white-space:nowrap}
.hbn119-meter{background:#e8eff7;height:8px;border-radius:10px;overflow:hidden;margin-bottom:12px}
.hbn119-meter>span{display:block;height:100%;background:#0057b8;border-radius:10px}
.hbn119-compact{padding:20px 22px}
@media(max-width:820px){.hbn119-steps,.hbn119-path-grid{grid-template-columns:1fr}.hbn119-steps>li{padding:14px}.hbn119-path>strong{min-height:0}.hbn119-heading{flex-direction:column}}
@media(max-width:520px){.hbn119-plan{padding:16px 14px;margin:12px 0 21px}.hbn119-compact{padding:16px 14px}.hbn119-heading h2{font-size:21px}.hbn119-step-content a{display:inline-block;min-height:36px;line-height:1.5}}

/* V120 - question-level progress across submitted practice attempts. */
.hbn120-progress{margin:16px 0 25px;padding:22px;border:1px solid #d0e0f0;background:#fff;box-shadow:none}
.hbn120-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:13px}
.hbn120-head h2{font-size:clamp(20px,2.3vw,27px);line-height:1.3;margin:5px 0 7px;color:#142946}
.hbn120-head p{max-width:720px;margin:0;line-height:1.5}
.hbn120-counters{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:12px 0 12px}
.hbn120-counters>div{min-width:0;padding:14px;border:1px solid #d7e1eb;border-radius:12px;display:flex;flex-direction:column;gap:4px}
.hbn120-counters strong{font-size:26px;color:#0057b8;line-height:1.2}
.hbn120-counters span{font-size:13px;color:#334c66;font-weight:600}
.hbn120-category{padding-top:17px;margin-top:15px;border-top:1px solid #d7e1eb}
.hbn120-category h3{font-size:18px;margin:0 0 4px;color:#142946}
.hbn120-category>.smallmuted{margin:0 0 12px}
.hbn120-review-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.hbn120-review-item{border:1px solid #dce5ed;border-radius:12px;padding:14px;min-width:0}
.hbn120-review-item>span{font-size:12px;font-weight:700;color:#0057b8}
.hbn120-review-item p{font-size:14px;line-height:1.5;margin:7px 0 9px;overflow-wrap:anywhere}
.hbn120-review-item a{overflow-wrap:anywhere;font-weight:700}
.hbn120-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:19px}
.hbn120-compact{padding:18px 21px}
@media(max-width:800px){.hbn120-counters{grid-template-columns:repeat(2,minmax(0,1fr))}.hbn120-review-list{grid-template-columns:1fr}.hbn120-head{flex-direction:column}}
@media(max-width:520px){.hbn120-progress{padding:16px 13px;margin:12px 0 20px}.hbn120-counters{gap:8px}.hbn120-counters>div{padding:12px}.hbn120-counters strong{font-size:24px}.hbn120-counters span{font-size:12px}}


/* V121 - personalized focused retry without changes to official quiz scoring. */
.hbn121-wrap{padding-bottom:30px}
.hbn121-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 22px;border:1px solid #d6e3f0}
.hbn121-bar h2{margin:5px 0 9px;font-size:clamp(20px,2.5vw,28px)}
.hbn121-bar p{max-width:690px;margin:0}
.hbn121-summary{text-align:center;min-width:115px;border-left:1px solid #d6e3f0;padding-left:18px}
.hbn121-summary strong{display:block;font-size:32px;line-height:1.1;color:#0057b8}
.hbn121-summary span{font-size:12px;color:#425870}
.hbn121-filter{display:grid;gap:8px;margin:14px 0;padding:17px}
.hbn121-filter label{font-weight:700}
.hbn121-filter select{max-width:100%}
.hbn121-filter button{justify-self:start}
.hbn121-questions .quiz{margin:13px 0;padding:19px;min-width:0;overflow-wrap:anywhere}
.hbn121-questions .quiz legend{font-weight:700;font-size:16px;line-height:1.5;max-width:100%}
.hbn121-questions .choice{display:flex;align-items:flex-start;flex-wrap:wrap;gap:7px}
.hbn121-questions .choice input{flex:none;margin-top:5px}
.hbn121-questions .choice span{flex:1;min-width:160px}
.hbn121-questions .choice small{display:block;width:100%;margin-left:24px}
.hbn121-priority{font-size:12px;color:#0057b8;font-weight:700}
.hbn121-actions,.hbn121-pagination{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}
.hbn121-wrap nav.hbn121-pagination{position:static;display:flex;left:auto;right:auto;top:auto;align-items:center;flex-direction:row;max-height:none;overflow:visible;background:transparent;border:0;padding:0;box-shadow:none}
.hbn121-dashboard-entry{margin:10px 0 20px}
.hbn121-last{margin:13px 0 0}
.hbn121-question:target{outline:2px solid #0057b8;outline-offset:3px;scroll-margin-top:110px}
@media(max-width:640px){
 .hbn121-bar{padding:15px;flex-direction:column;align-items:stretch}
 .hbn121-summary{border-left:0;border-top:1px solid #d6e3f0;padding:12px 0 0;text-align:left}
 .hbn121-questions .quiz{padding:14px 11px}
 .hbn121-questions .choice span{min-width:0}
 .hbn121-actions{display:grid;grid-template-columns:1fr}
 .hbn121-actions .btn{min-height:44px;white-space:normal;text-align:center}
}


/* V122: read-only spaced review prompts, neutral/royal-blue design. */
.hbn122-plan{margin:18px 0 25px;padding:22px;border:1px solid #d0e0f0;box-shadow:none}
.hbn122-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.hbn122-head h2{font-size:clamp(20px,2.4vw,27px);line-height:1.3;margin:5px 0 8px}
.hbn122-head p{max-width:800px;margin:0 0 16px;line-height:1.5}
.hbn122-counts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:14px 0}
.hbn122-counts>div{min-width:0;border:1px solid #d7e1eb;border-radius:12px;padding:15px;display:flex;flex-direction:column;gap:4px}
.hbn122-counts strong{font-size:26px;line-height:1.2;color:#0057b8}
.hbn122-counts span{font-size:13px;color:#334c66}
.hbn122-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:14px}
.hbn122-item{min-width:0;border:1px solid #d7e1eb;border-radius:12px;padding:15px;overflow-wrap:anywhere}
.hbn122-item-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:7px}
.hbn122-topic{font-size:12px;font-weight:750;color:#0057b8}
.hbn122-due{font-size:12px;font-weight:750;color:#162a45}
.hbn122-question{font-size:14px;line-height:1.5;font-weight:650;margin:10px 0 7px}
.hbn122-item .smallmuted{margin:6px 0 10px;font-size:12px}
.hbn122-links{display:flex;flex-wrap:wrap;gap:8px 15px;font-size:13px}
.hbn122-links a{overflow-wrap:anywhere}
.hbn122-disclaimer{margin-top:18px;line-height:1.55}
@media(max-width:760px){.hbn122-grid{grid-template-columns:1fr}.hbn122-head{flex-direction:column}}
@media(max-width:540px){.hbn122-plan{padding:16px 13px}.hbn122-counts{gap:7px}.hbn122-counts>div{padding:12px 9px}.hbn122-counts strong{font-size:23px}.hbn122-counts span{font-size:11px}.hbn122-item{padding:13px}}