.course-mode main{max-width:1600px;padding-top:30px;padding-bottom:45px}
.course-progress-count{font-size:17px;color:var(--muted);margin:0}
.lesson-list{display:flex;flex-direction:column;gap:18px}.lesson-list-card{display:flex;align-items:center;gap:28px;padding:27px 30px;border-radius:24px;background:var(--blue);color:white;min-height:156px}.lesson-list-card .lesson-number{min-width:66px;font-size:54px;line-height:1}.lesson-card-copy{flex:1;min-width:0}.lesson-card-meta{font-size:14px;color:#e0e8ff;display:flex;gap:15px;align-items:center;flex-wrap:wrap;margin-bottom:10px}.lesson-card-copy h2{font-size:28px;letter-spacing:-.65px;line-height:1.2;margin:0 0 10px}.lesson-card-copy p{font-size:16px;line-height:1.55;color:#edf2ff;margin:0}.lesson-card-actions{flex-shrink:0}.lesson-start{display:flex;align-items:center;gap:15px;justify-content:center;background:var(--lime);border:0;border-radius:12px;color:var(--ink);font-size:15px;font-weight:700;padding:15px 20px;min-height:49px;min-width:175px}.lesson-start:hover{background:#e4ff81}.lesson-list-card.is-completed{background:#526899}.lesson-list-card.is-completed .lesson-start{background:#ddeca9}.lesson-list-card.is-completed .lesson-number{color:#e1ecb5}.completed-badge{font-size:13px;background:#ffffff19;border:1px solid #ffffff40;border-radius:25px;color:white;padding:5px 10px}.lesson-card-copy .saved-lesson-result{font-size:14px;margin-top:10px;color:white}.course-footer-actions{display:flex;gap:20px;flex-wrap:wrap}.module-subtitle{font-size:18px;line-height:1.55;color:var(--muted);margin-top:-9px;margin-bottom:25px}
.lesson-completion{display:flex;align-items:center;justify-content:space-between;gap:25px;border:1px solid #cfdbaf;border-radius:20px;background:#eff5df;padding:25px;margin-top:32px}.lesson-completion .eyebrow{margin-bottom:9px}.lesson-completion h3{font-size:22px;line-height:1.4;margin:0 0 9px}.lesson-completion p{font-size:15px;line-height:1.6;margin:0;max-width:670px}.lesson-completion small{display:block;font-size:13px;line-height:1.5;margin-top:10px}.completion-actions{display:flex;flex-direction:column;gap:10px;flex-shrink:0}.completion-result{font-size:24px;line-height:1.4;padding:20px;background:#eef4df;border-radius:15px;margin:10px 0 20px}.practice-discussed{display:flex;gap:12px;align-items:center;font-size:16px;font-weight:600;border:1px solid #bfce9b;border-radius:13px;padding:18px;background:#f0f5df;margin:20px 0}.practice-discussed input{width:20px;height:20px;accent-color:var(--blue);flex-shrink:0}
.deep-intro{margin-bottom:24px}.deep-intro h3{font-size:27px;line-height:1.3;margin-bottom:11px}.deep-intro p{font-size:17px;line-height:1.65;color:var(--muted);max-width:850px;margin:0}.comparison-list{display:flex;flex-direction:column;gap:15px}.comparison-card{border:1px solid var(--line);border-radius:20px;background:white;overflow:hidden}.comparison-card>summary{display:flex;align-items:center;gap:16px;cursor:pointer;list-style:none;padding:22px 24px;font-size:20px;font-weight:600;line-height:1.4}.comparison-card>summary::-webkit-details-marker{display:none}.comparison-number{color:var(--blue);font-size:16px;font-weight:400}.comparison-card summary>span:nth-child(2){flex:1}.comparison-card summary small{display:block;font-size:13px;line-height:1.5;color:var(--muted);font-weight:400;margin-top:5px}.expand-symbol{display:grid;place-items:center;border-radius:50%;background:#edf2ff;color:var(--blue);height:32px;width:32px;flex-shrink:0;font-size:24px;font-weight:400}.comparison-card[open] .expand-symbol{transform:rotate(45deg)}.comparison-content{padding:0 24px 24px}.comparison-content>p{font-size:16px;line-height:1.7;margin:20px 0}.comparison-content .example-pair p{font-size:17px;line-height:1.7}.next-attempt{background:#eef3fc;border-radius:13px;padding:18px 20px;margin-top:18px}.next-attempt>strong{font-size:14px;color:var(--blue)}.next-attempt p{font-size:16px;line-height:1.65;margin:9px 0 0}.research-review{border:1px solid var(--line);background:white;padding:23px;border-radius:19px;margin-top:25px}.research-review summary{font-size:17px;cursor:pointer;font-weight:600;line-height:1.5}.research-review summary span{display:block;font-size:13px;color:var(--muted);font-weight:400;margin-top:5px}.research-review>p{font-size:15px;line-height:1.65;margin-top:20px}.research-years{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.research-years article{border-top:1px solid var(--line);padding-top:17px}.research-years strong{font-size:25px;color:var(--blue)}.research-years p{font-size:15px;line-height:1.65;margin:13px 0}.research-years a{font-size:13px;line-height:1.5;color:var(--blue)}
.connector-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.connector-card{padding:25px;border:1px solid var(--line);background:white;border-radius:20px}.connector-card .eyebrow{margin:0 0 12px;color:var(--blue)}.connector-card h4{font-size:21px;line-height:1.4;margin:0 0 15px}.connector-card>p{font-size:16px;line-height:1.65;margin:15px 0 0}.connector-card .connector-forms{font-size:17px;color:var(--blue);font-weight:600;line-height:1.6}.connector-example{padding:16px;background:#f0f5df;border-radius:12px;color:var(--ink)}
.student-criteria{display:flex;flex-direction:column;gap:20px}.student-criterion{border:1px solid var(--line);background:#fff;border-radius:21px;padding:26px}.criterion-heading{display:flex;gap:14px;align-items:center;flex-wrap:wrap}.criterion-code{width:42px;height:42px;display:grid;place-items:center;background:var(--blue);color:white;border-radius:12px;font-weight:700;flex-shrink:0}.criterion-heading h4{font-size:22px;line-height:1.35;margin:0;flex:1}.criterion-heading .pill{white-space:nowrap}.student-criterion>p{font-size:17px;line-height:1.7;margin:18px 0}.criterion-feedback{display:grid;grid-template-columns:1fr 1fr;gap:18px}.criterion-feedback>div{background:#f5f6f9;border-radius:12px;padding:18px}.criterion-feedback>div:last-child{background:#eef5df}.criterion-feedback strong{font-size:14px}.criterion-feedback p{font-size:16px;line-height:1.6;margin:10px 0 0}.student-criterion .criterion-scale{font-size:14px;line-height:1.6;color:var(--muted);margin-bottom:0}.criterion-important{font-size:16px;line-height:1.65;border-radius:15px;background:#e7edff;padding:21px;margin:22px 0 17px}
.example-task{padding:22px 25px;background:#eaf0ff;border-radius:17px;margin:20px 0;font-size:17px}.example-task ol{padding-left:23px;line-height:1.75;margin-bottom:0}.full-answer-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}.full-answer{background:white;border:1px solid var(--line);border-radius:19px;overflow:hidden}.bad-answer{border-top:5px solid #d9a69c}.good-answer{border-top:5px solid #93bb68}.full-answer-text{padding:24px;font-size:18px;line-height:1.75}.full-answer-text p{margin:0 0 16px}.full-answer-text p:last-child{margin:0}.example-verdict{padding:23px;background:#fff0e9;border-radius:17px;margin:22px 0 28px}.example-verdict strong{font-size:18px}.example-verdict p{font-size:16px;line-height:1.7;margin:12px 0 0}.review-title{font-size:26px}.answer-reviews{display:flex;flex-direction:column;gap:19px}.answer-review{background:#fff;padding:24px;border:1px solid var(--line);border-radius:20px}.answer-review h4{font-size:21px;margin:0 0 18px}
@media(max-width:1150px){.lesson-completion{display:block}.completion-actions{flex-direction:row;flex-wrap:wrap;margin-top:19px}.full-answer-grid{grid-template-columns:1fr}.research-years{grid-template-columns:1fr}.criterion-heading h4{font-size:20px}}
@media(max-width:800px){.lesson-list-card{gap:19px;align-items:flex-start;flex-wrap:wrap;padding:25px}.lesson-list-card .lesson-number{font-size:44px;min-width:48px}.lesson-card-actions{margin-left:auto}.lesson-card-copy{min-width:calc(100% - 90px)}.lesson-card-copy h2{font-size:25px}.module-tabs{flex-wrap:wrap;overflow:visible;gap:13px 20px}.module-tabs button{min-height:36px;padding-bottom:10px}.connector-grid,.criterion-feedback{grid-template-columns:1fr}.research-review{padding:20px}.course-source-note .course-footer-actions{gap:10px 20px}}
@media(max-width:500px){.lesson-list{gap:16px}.lesson-list-card{padding:22px 20px;gap:16px}.lesson-list-card .lesson-number{font-size:37px;min-width:42px}.lesson-card-meta{font-size:13px;gap:8px}.lesson-card-copy h2{font-size:24px}.lesson-card-copy p{font-size:15px}.lesson-start{font-size:14px;min-width:167px}.lesson-card-copy .saved-lesson-result{font-size:13px}.lesson-completion{padding:20px}.lesson-completion h3{font-size:21px}.completion-actions>button{width:100%}.deep-intro h3{font-size:24px}.deep-intro p{font-size:16px}.comparison-card>summary{padding:19px;gap:10px;font-size:18px}.comparison-content{padding:0 19px 19px}.comparison-content .example-pair{gap:12px}.comparison-content .example-pair p{font-size:16px}.connector-card,.student-criterion,.answer-review{padding:20px}.criterion-heading h4{font-size:20px;flex-basis:calc(100% - 60px)}.criterion-heading .pill{margin-left:56px}.example-task{padding:20px;font-size:16px}.full-answer-text{padding:20px;font-size:17px}.full-answer .letter-author{padding:16px}.module-subtitle{font-size:16px}.course-progress-count{font-size:16px}}
.dialog-head .icon-button{display:inline-flex;align-items:center;justify-content:center}
@media(max-width:650px){.intro-mode #course-link{font-size:13px;padding:9px}}
@media(max-width:500px){.intro-mode .topbar .brand-sub{display:none}}
.course-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:24px}
.course-heading h1{font-size:clamp(34px,4vw,54px);line-height:1.1;letter-spacing:-1.8px;margin:0 0 12px}
.course-heading .eyebrow{margin-bottom:12px}.course-heading .lead{margin:0;max-width:750px}
.intro-course-card{width:100%;display:flex;align-items:center;gap:28px;background:var(--blue);color:white;border:0;border-radius:24px;text-align:left;padding:25px 30px;margin-bottom:30px}
.intro-course-card:hover{background:#1947d7}.lesson-number{font-size:54px;font-weight:700;letter-spacing:-3px;color:var(--lime)}
.intro-course-card>span:nth-child(2){display:flex;flex-direction:column;gap:8px;flex:1}
.intro-course-card small{font-size:14px;color:#d7e2ff}.intro-course-card strong{font-size:27px;letter-spacing:-.5px}.intro-course-card>span:nth-child(2)>span{font-size:16px;line-height:1.45;color:#e5ebff}
.intro-card-action{padding:13px 18px;border-radius:12px;background:var(--lime);color:var(--ink);font-size:15px;font-weight:600;white-space:nowrap}
.course-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.section-card{border:1px solid var(--line);border-radius:24px;padding:25px;background:white;min-width:0}
.section-card-heading{display:flex;align-items:center;gap:13px}.section-card-heading>span:nth-child(2){flex:1;min-width:0}
.section-symbol{width:48px;height:48px;background:#edf2ff;color:var(--blue);display:grid;place-items:center;border-radius:13px;font-size:25px;flex-shrink:0}
.section-card-heading small{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:1px}.section-card h2{font-size:24px;letter-spacing:-.5px;margin:5px 0 0}
.section-card>p{color:var(--muted);font-size:16px;margin:17px 0}.section-card .pill{white-space:nowrap}
.module-links{display:flex;flex-direction:column}.module-links>button{background:transparent;border:0;border-top:1px solid var(--line);padding:15px 3px;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;color:var(--ink);width:100%}
.module-links>button:last-child{padding-bottom:0}.module-links small{display:block;color:var(--muted);font-size:13px;margin-bottom:6px}.module-links strong{font-size:17px;line-height:1.35;font-weight:600}
.module-links>button>span:last-child{color:var(--blue);font-size:22px}.module-links>button:hover strong{color:var(--blue)}
.course-source-note{margin-top:27px;border-top:1px solid var(--line);display:flex;align-items:center;gap:25px;justify-content:space-between;padding-top:12px}
.course-source-note p{font-size:13px;color:var(--muted);max-width:790px;margin:0}.course-source-note .text-button{font-size:13px;flex-shrink:0}
.course-layout{display:grid;grid-template-columns:225px minmax(0,1fr);gap:35px;align-items:start}
.course-sidebar{position:sticky;top:0;max-height:calc(100dvh - 150px);overflow-y:auto;padding-right:17px;border-right:1px solid var(--line);scrollbar-width:thin}
.course-sidebar button{width:100%;border:0;text-align:left;color:var(--muted);border-radius:10px;background:transparent;padding:10px 12px;font-size:14px;line-height:1.4}
.course-back{font-weight:700;margin-bottom:12px;color:var(--blue)!important}.sidebar-intro{background:white!important;border:1px solid var(--line)!important;color:var(--ink)!important;font-weight:600;margin-bottom:17px}
.course-sidebar small{display:block;font-size:12px;font-weight:400;margin-bottom:4px}.sidebar-group h3{font-size:14px;letter-spacing:0;margin:13px 12px 5px;color:var(--ink)}
.sidebar-group button:hover{background:#e9edf7}.sidebar-group button.active{background:var(--blue);color:white}.sidebar-group button.active small{color:#dae5ff}
.module-content{min-width:0}.module-topline{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.module-topline>span{font-size:14px;color:var(--muted)}.module-topline>div{display:flex;gap:6px;flex-wrap:wrap}.module-topline .pill{font-size:12px}
.module-content h1{font-size:clamp(31px,3vw,44px);line-height:1.15;letter-spacing:-1.4px;margin:0 0 23px;max-width:850px}
.module-tabs{display:flex;gap:20px;border-bottom:1px solid var(--line);margin-bottom:26px;overflow-x:auto;scrollbar-width:thin}
.module-tabs button{background:none;border:0;border-bottom:3px solid transparent;border-radius:0;color:var(--muted);padding:0 0 14px;font-size:15px;white-space:nowrap;min-height:43px}
.module-tabs button.active{border-color:var(--blue);color:var(--blue);font-weight:600}
.format-callout{background:#e9eefc;border:1px solid #dfe6fa;padding:23px 26px;border-radius:20px;margin-bottom:22px}.format-callout .eyebrow{font-size:12px;letter-spacing:1px;color:var(--blue);margin-bottom:9px}.format-callout p{margin:0;font-size:18px;line-height:1.65}
.guide-columns{display:grid;grid-template-columns:1.22fr 1fr;gap:22px}.guide-panel{padding:25px;border:1px solid var(--line);border-radius:22px;background:#fff}.guide-panel h3{font-size:22px;margin-bottom:22px;line-height:1.3}.guide-steps{padding:0;list-style:none;margin:0;display:flex;flex-direction:column;gap:22px}.guide-steps li{display:flex;gap:13px}.guide-steps li>span{flex-shrink:0;width:29px;height:29px;border-radius:9px;background:#edf2ff;color:var(--blue);display:grid;place-items:center;font-weight:700}.guide-steps p{font-size:16px;line-height:1.65;margin:0}.prepare-panel{background:#f0f5de}.prepare-panel>p{font-size:16px;line-height:1.7;margin-bottom:22px}.prepare-panel .primary{margin-top:6px}
.criteria-section{margin-top:28px}.criteria-section>h3{font-size:23px}.criteria-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.criteria-grid>div{background:#fff;border:1px solid var(--line);border-radius:17px;padding:20px}.criteria-grid strong{font-size:30px;color:var(--blue)}.criteria-grid small{font-size:14px;font-weight:400}.criteria-grid h4{font-size:17px;margin:12px 0 9px}.criteria-grid p{font-size:15px;margin:0;color:var(--muted);line-height:1.55}
.pitfall-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.pitfall-card{background:white;border:1px solid var(--line);border-radius:20px;padding:23px}.pitfall-card>span{font-size:13px;color:#647ac2}.pitfall-card h3{font-size:21px;margin:13px 0 10px}.pitfall-card p{font-size:16px;line-height:1.6;margin:0;color:var(--muted)}
.mistake-example{margin:22px 0 24px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:20px}.example-caption{font-weight:700;font-size:18px;margin-bottom:17px}.example-pair{display:grid;grid-template-columns:1fr 1fr;gap:14px}.example-pair>div{padding:17px;border-radius:13px;background:#fff0ed}.example-pair>div:last-child{background:#eaf5ec}.example-pair span{font-size:13px;font-weight:700}.example-pair p{font-size:17px;line-height:1.5;margin:8px 0 0}.mistake-example>p{font-size:16px;line-height:1.6;margin:18px 0 0}
.practice-heading{display:flex;align-items:center;justify-content:space-between;gap:20px}.practice-heading .eyebrow{font-size:12px;letter-spacing:1px;margin-bottom:11px}.practice-heading h3{font-size:27px;margin:0}.practice-heading>.pill{white-space:nowrap}.practice-instruction{font-size:17px;line-height:1.65;color:var(--muted);margin:16px 0 23px}
.practice-audio{padding:22px;background:#181d31;color:white;border-radius:20px;display:grid;grid-template-columns:1fr minmax(270px,1fr);gap:13px 20px;align-items:center;margin-bottom:12px}.practice-audio strong{display:block;font-size:18px;margin-bottom:7px}.practice-audio span{font-size:14px;color:#d6dbe9;line-height:1.5;display:block}.practice-audio audio{width:100%;height:45px}.practice-audio small{grid-column:1/-1;font-size:12px;color:#c5ccdf}
.audio-transcript{background:#fff;border:1px solid var(--line);border-radius:15px;padding:17px 20px;margin:13px 0 24px}.audio-transcript summary{cursor:pointer;font-size:16px;font-weight:600;color:var(--blue)}.audio-transcript p{font-size:16px;line-height:1.7}
.practice-passage{background:white;border:1px solid var(--line);border-radius:20px;padding:26px 28px;font-size:20px;line-height:1.8;margin-bottom:24px}.practice-passage mark{padding:3px 10px;border-radius:7px;background:#e3eaff;color:var(--blue);white-space:nowrap}.practice-passage h3{font-size:23px;line-height:1.5}.practice-passage li{font-size:18px;line-height:1.7;margin:9px 0}.practice-passages{display:grid;gap:12px;margin-bottom:26px}.practice-passages article{display:flex;gap:19px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:17px}.practice-passages strong{color:var(--blue);font-size:22px}.practice-passages p{font-size:18px;line-height:1.7;margin:0}
.practice-fields{display:grid;gap:16px;margin-top:22px}.practice-field{padding:20px;background:#fff;border:1px solid var(--line);border-radius:17px}.practice-field label{display:flex;gap:12px;align-items:center;justify-content:space-between;font-size:17px;line-height:1.5;margin-bottom:12px}.root-token{font-size:14px;letter-spacing:1px;background:#edf0f7;padding:6px 12px;border-radius:8px}.practice-field select,.practice-field input{font:inherit;font-size:17px;border:1px solid #bfc8dd;border-radius:10px;background:#fff;color:var(--ink);padding:13px 15px;width:100%;min-height:49px}.practice-field input:focus,.practice-field select:focus{outline:3px solid #2455ef25;border-color:var(--blue)}.practice-field.is-right{border-color:#71b590}.practice-field.is-wrong{border-color:#d2907f}.practice-field select:disabled,.practice-field input:disabled{opacity:1;color:var(--ink);background:#f6f7f9}.field-explanation{padding-top:14px;font-size:16px;line-height:1.55}.is-right .field-explanation>strong{color:#24643f}.is-wrong .field-explanation>strong{color:#984d33}.field-explanation p{margin:7px 0 0;color:var(--muted);font-size:15px}.practice-controls{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin:23px 0 16px}.practice-result{padding:17px 20px;border-radius:13px;background:#e9f4d4;font-size:17px;line-height:1.5;margin-bottom:18px}
.letter-task{background:#eaf0ff;border-radius:16px;padding:22px 25px;margin-bottom:18px;font-size:16px}.letter-task ol{padding-left:23px;line-height:1.8;margin-bottom:0;font-size:17px}.letter-tabs{display:flex;gap:7px;margin-bottom:22px}.letter-tabs button{padding:12px 17px;border:1px solid var(--line);border-radius:11px;background:#fff;font-size:15px;color:var(--muted);min-height:45px}.letter-tabs button.active{background:var(--blue);border-color:var(--blue);color:#fff}
.letter-workspace{display:grid;grid-template-columns:1.35fr 1fr;gap:21px;align-items:start}.practice-letter{background:white;border:1px solid var(--line);border-radius:20px;overflow:hidden}.letter-author{display:flex;gap:11px;padding:17px 21px;border-bottom:1px solid var(--line);align-items:center}.letter-author .avatar{width:39px;height:39px}.letter-author>div{flex:1}.letter-author strong{font-size:16px;display:block}.letter-author>div>span{display:block;font-size:12px;color:var(--muted);margin-top:4px}.letter-author>.pill{font-size:12px;padding:6px 9px;white-space:nowrap}.letter-text{padding:22px 25px;font-size:18px;line-height:1.65}.letter-text p{margin:0 0 17px;line-height:1.65}.letter-text p:nth-last-child(-n+2){margin-bottom:0}.letter-fragment{padding:0;background:transparent;border:0;border-bottom:1px dotted transparent;font:inherit;line-height:inherit;text-align:left;color:inherit;display:inline;cursor:pointer}.letter-fragment:hover{background:#eef2ff;border-bottom-color:var(--blue)}.letter-fragment.selected{background:#ffe2a6}.letter-fragment.fixed{background:#e7f4d6;color:#28602c;opacity:1}.letter-review{background:#fff;border:1px solid var(--line);border-radius:19px;padding:23px;position:sticky;top:12px}.letter-review h3{font-size:21px;line-height:1.3}.letter-review p,.letter-review li{font-size:16px;line-height:1.65}.letter-review ol{padding-left:22px;margin-bottom:18px}.letter-review li{margin-bottom:14px}.letter-review>.small-note{font-size:13px;color:var(--muted)}.letter-selected{font-weight:600;margin:17px 0}.letter-correction{padding:16px;background:#edf6de;border-radius:12px;font-size:17px;line-height:1.6;margin:17px 0}.letter-review .text-button{margin-top:12px;font-size:14px}
.oral-clock{padding:21px 24px;background:#181d31;border-radius:19px;color:white;display:flex;gap:23px;justify-content:space-between;align-items:center;margin-bottom:23px}.oral-clock>div:first-child{min-width:112px}.oral-clock small{display:block;font-size:13px;color:#c9d1e4}.oral-clock strong{font-size:44px;letter-spacing:-1.5px;line-height:1.1;margin-top:7px;display:block;font-variant-numeric:tabular-nums}.oral-clock-actions{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}.oral-clock-actions button{font-size:13px;padding:11px 13px}.oral-clock .primary{background:var(--lime);color:var(--ink)}.oral-clock .text-button{color:#e0e5f0}.oral-question-nav{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:17px}.oral-question-nav button{width:41px;height:41px;border:1px solid var(--line);border-radius:10px;background:white;color:var(--ink)}.oral-question-nav button.active{color:white;background:var(--blue);border-color:var(--blue)}.oral-question{background:#fff;padding:26px;border:1px solid var(--line);border-radius:20px;margin-bottom:20px}.oral-question>span{font-size:13px;color:var(--muted)}.oral-question h3{font-size:26px;line-height:1.5;margin:14px 0 18px}.oral-question .small-note{font-size:13px;margin:0}.oral-model{background:#edf4ff;border:1px solid #d2dffa;border-radius:17px;padding:23px;margin:19px 0}.oral-model>strong{font-size:16px;color:var(--blue)}.oral-model p{font-size:18px;line-height:1.75;margin:13px 0 0}.oral-model .small-note{display:block;margin-top:15px}.oral-checklist{margin:28px 0 23px}.oral-checklist h3{font-size:21px}.oral-checklist label{display:flex;align-items:flex-start;gap:12px;font-size:16px;line-height:1.5;margin:13px 0}.oral-checklist input{width:18px;height:18px;margin-top:3px;accent-color:var(--blue);flex-shrink:0}
.module-bottom{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);padding-top:23px;margin-top:32px}.module-sources{display:flex;gap:8px 18px;flex-wrap:wrap;align-items:center;margin-top:25px;color:var(--muted);font-size:12px;line-height:1.5}.module-sources a{color:var(--muted);text-underline-offset:3px}.module-sources .text-button{font-size:12px;padding:0;min-height:30px}
@media(max-width:1150px){.course-layout{grid-template-columns:190px minmax(0,1fr);gap:24px}.course-sidebar{padding-right:12px}.guide-columns{grid-template-columns:1fr}.guide-panel{padding:23px}.guide-steps{gap:17px}.prepare-panel .primary{margin-top:0}.letter-workspace{grid-template-columns:1fr}.letter-review{position:static}.oral-clock{align-items:flex-start}.module-topline{align-items:flex-start;flex-direction:column}.practice-audio{grid-template-columns:1fr}.course-sidebar button{font-size:13px}.course-source-note{align-items:flex-start;flex-direction:column;gap:5px}}
@media(max-width:800px){.course-layout{grid-template-columns:1fr}.course-sidebar{display:none}.course-grid{grid-template-columns:1fr}.course-mode main{padding-top:23px}.course-heading{display:block}.course-heading>.secondary{margin-top:18px}.course-heading h1{font-size:36px}.intro-course-card{padding:22px;gap:17px;flex-wrap:wrap}.intro-course-card .lesson-number{font-size:43px}.intro-card-action{margin-left:auto;font-size:14px}.intro-course-card>span:nth-child(2){min-width:210px}.module-content h1{font-size:35px}.module-tabs{gap:20px}.module-topline{flex-direction:row;align-items:center}.section-card{padding:22px}.module-sources{font-size:12px}.course-mode .topbar{min-height:82px}.course-mode #course-link{font-size:14px;display:block;padding:10px}.course-mode .toolbar{gap:9px}}
@media(max-width:500px){.course-heading h1{font-size:33px}.course-heading .lead{font-size:16px}.intro-course-card>span:nth-child(2)>span{font-size:15px}.intro-course-card .lesson-number{font-size:38px}.intro-course-card strong{font-size:24px}.intro-course-card small{font-size:13px}.section-card-heading{gap:10px;flex-wrap:wrap}.section-card-heading>span:nth-child(2){min-width:130px}.section-card-heading .pill{margin-left:58px;margin-top:-5px}.section-card h2{font-size:23px}.module-links strong{font-size:16px}.course-heading .eyebrow{font-size:12px;letter-spacing:1px}.module-topline{flex-direction:column;align-items:flex-start}.module-content h1{font-size:31px;letter-spacing:-.7px}.module-tabs{gap:19px}.module-tabs button{font-size:14px}.format-callout{padding:20px}.format-callout p{font-size:17px}.guide-panel{padding:20px}.guide-panel h3{font-size:21px}.guide-steps li{gap:10px}.pitfall-grid,.example-pair,.criteria-grid{grid-template-columns:1fr}.practice-heading{align-items:flex-start;flex-direction:column;gap:13px}.practice-heading h3{font-size:25px}.practice-passage{padding:22px;font-size:18px}.practice-passages article{padding:19px;gap:13px}.practice-passages p{font-size:17px}.practice-field{padding:18px}.practice-field label{font-size:16px}.practice-controls .primary{flex:1;min-width:170px}.practice-controls .secondary{font-size:14px}.practice-audio{padding:19px}.letter-tabs button{font-size:13px;padding:10px 12px;line-height:1.5}.letter-task{padding:19px}.letter-task ol{font-size:16px}.letter-text{padding:20px;font-size:17px}.letter-author{padding:15px;gap:8px}.letter-author>.pill{font-size:12px}.letter-review{padding:20px}.oral-clock{display:block;padding:20px}.oral-clock-actions{margin-top:20px;justify-content:flex-start}.oral-clock strong{font-size:44px}.oral-clock-actions button{font-size:12px}.oral-question{padding:21px}.oral-question h3{font-size:23px}.oral-model{padding:20px}.oral-model p{font-size:17px}.module-bottom{gap:9px}.module-bottom button{font-size:13px;padding:12px 14px}.module-sources{display:block}.module-sources>span{display:block;margin:8px 0}.course-mode .message-popover{top:92px}.course-mode #course-link{font-size:13px;padding:9px}.course-mode .topbar .brand-sub{font-size:8px}}