/* Scoped Beginner2 reader: inherits Inter, themes, reading size and color modes. */
.b2-page{max-width:1080px;margin:0 auto;padding:0 0 2rem;--b2-candle-up:#e7f5f7;--b2-candle-down:#087c8b;line-height:1.7;overflow-wrap:anywhere}
.b2-page[hidden],.b2-search-results[hidden]{display:none!important}
.b2-page h2{font-size:clamp(1.55rem,3vw,2.2rem);line-height:1.25;margin:.6rem 0}
.b2-page h3{font-size:1.2rem;line-height:1.35;margin:0 0 .7rem}.b2-page h4{font-size:1rem;margin:.8rem 0 .3rem}
.b2-page p{margin:.65rem 0}.b2-page li{margin:.3rem 0}.b2-page ul,.b2-page ol{padding-inline-start:1.5rem}
.b2-header{padding:1.2rem 0;border-bottom:1px solid var(--line,#7b879552);margin-bottom:1.3rem}.b2-breadcrumb{font-size:.88rem}.b2-badges{display:flex;flex-wrap:wrap;align-items:center;gap:.6rem;margin-top:1rem}.b2-free-label{font-size:.88rem;font-weight:700}
.b2-section,.b2-exercise,.b2-tip,.b2-caution,.b2-quiz,.b2-module,.b2-completion,.b2-exam-result{margin:1.3rem 0;padding:1.15rem;border:1px solid var(--line,#7b879552);border-radius:14px;min-width:0}
.b2-section-example,.b2-exercise,.b2-quiz{background:var(--panel,var(--card,transparent))}.b2-tip{border-inline-start:4px solid var(--cyan,#1fb4c5)}.b2-caution,.b2-safety-review{border-inline-start:4px solid #b17914}.b2-caution h3::before{content:'! ';font-weight:900}
.b2-actions{display:flex;flex-wrap:wrap;gap:.65rem;align-items:center;margin:1rem 0}.b2-actions small{flex-basis:100%}.b2-page button,.b2-page a.secondary,.b2-page a.primary{white-space:normal;max-width:100%;min-height:44px}.b2-page button:disabled{opacity:.65;cursor:not-allowed}
.b2-page :is(button,a,input,summary):focus-visible,.b2-search-results a:focus-visible,.b2-confirm :is(button,a):focus-visible{outline:3px solid var(--cyan,#14b5c7);outline-offset:4px}
.b2-lesson-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.8rem}.b2-lesson-link{display:block;color:inherit;text-decoration:none;font-weight:700;padding:1rem;border:1px solid var(--line,#7b879552);border-radius:10px;line-height:1.5}.b2-lesson-link:hover{border-color:var(--cyan,#14b5c7)}.b2-lesson-link small{display:block;font-weight:400;margin-top:.6rem}
.b2-page input[type=search]{display:block;width:100%;box-sizing:border-box;min-height:44px;margin:.5rem 0 1rem}.b2-page label[for=b2-title-search]{display:block;font-weight:700;margin-top:1.5rem}
.b2-details{border:1px solid var(--line,#7b879552);border-radius:10px;padding:.85rem 1rem;margin:1rem 0}.b2-details summary{cursor:pointer;font-weight:700;min-height:28px}.b2-details[open] summary{margin-bottom:.6rem}.b2-details dt{font-weight:700;margin-top:.8rem}.b2-details dd{margin-inline-start:0}
.b2-visual{margin:1.4rem 0;padding:1.1rem;border:1px solid var(--line,#7b879552);border-radius:14px;background:var(--panel,var(--card,transparent))}.b2-visual svg{width:100%;height:auto;display:block}.b2-visual>ol{display:grid;gap:.6rem;list-style-position:inside;padding:0}.b2-visual>ol li{padding:.7rem;border:1px solid var(--line,#7b879552);border-radius:8px}.b2-visual figcaption{margin:.7rem 0 0;font-size:.92rem}.b2-chart-legend{font-size:.86rem}.b2-higher-candle{max-width:720px}.b2-table-wrap{max-width:100%;overflow-x:auto;overscroll-behavior-x:contain}.b2-table-wrap table{width:100%;border-collapse:collapse;min-width:0}.b2-table-wrap th,.b2-table-wrap td{padding:.55rem .7rem;border:1px solid var(--line,#7b879552);text-align:left;vertical-align:top;white-space:normal}.b2-table-wrap th{font-weight:700}
.b2-question{min-width:0;margin:1rem 0 1.4rem;padding:1rem;border:1px solid var(--line,#7b879552);border-radius:10px}.b2-question legend{font-weight:700;padding:0 .4rem;max-width:100%;line-height:1.5}.b2-option{display:flex;gap:.7rem;align-items:flex-start;padding:.75rem;border-radius:8px;cursor:pointer}.b2-option:hover{background:var(--panel2,#778da615)}.b2-option input{flex:0 0 auto;width:20px;height:20px;margin:.2rem 0 0;accent-color:#087c8b}.b2-option span{min-width:0}.b2-feedback{padding:.8rem;border-radius:8px;border:1px solid var(--line,#7b879552);font-weight:500}.b2-correct{border-inline-start:4px solid #19815e}.b2-incorrect{border-inline-start:4px solid #bb6831}.b2-completion-status,.b2-quiz-summary{font-weight:600}.b2-exam-review,.b2-safety-review{padding:.7rem 1rem;margin:1rem 0}.b2-safety-alert{font-weight:700}.b2-progress-summary{font-weight:600}
.b2-confirm{max-width:540px;width:calc(100% - 2rem);box-sizing:border-box;border:1px solid var(--line,#6c798d);border-radius:14px;padding:1.4rem;background:var(--panel,#101e33);color:var(--text,#edf4ff);font:inherit}.b2-confirm::backdrop{background:#0009}.b2-confirm button{margin:.6rem .6rem 0 0;min-height:44px}.b2-confirm h3{margin:0;font-size:1.25rem}
.b2-search-results{margin:1rem 0}.b2-search-results .b2-lesson-link{margin:.6rem 0}.b2-access-note{margin:1rem 0}.b2-access-note .b2-actions{margin-bottom:0}
[data-theme=light] .b2-confirm{background:#fff;color:#14243b}
[data-color-mode=contrast] .b2-page{--b2-candle-up:#fff;--b2-candle-down:#000}
@media(max-width:800px){.b2-lesson-grid{grid-template-columns:1fr}.b2-page{max-width:100%}.b2-page h2{font-size:1.65rem}}
@media(max-width:480px){.b2-page .b2-section,.b2-exercise,.b2-tip,.b2-caution,.b2-quiz,.b2-module,.b2-completion,.b2-exam-result,.b2-visual{padding:.85rem}.b2-question{padding:.6rem}.b2-option{padding:.6rem .15rem}.b2-actions{align-items:stretch}.b2-actions>a,.b2-actions>button{flex:1 1 100%}.b2-table-wrap th,.b2-table-wrap td{padding:.4rem;font-size:.9rem}.b2-page .b2-header h2{font-size:1.5rem}}

.b2-account-link{display:inline-block;margin-inline-start:1rem;font-size:.9rem}