.practice-section .feature-section{display:block;max-width:1200px}
.practice-section .practice-intro{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;margin-bottom:48px}
.practice-intro .eyebrow{font-size:19px;margin-bottom:22px}
.practice-intro h2{margin:0;font-size:58px;line-height:1.08;letter-spacing:-2.4px}
.practice-intro-detail>p{font-size:22px;color:#6e6e73;line-height:1.5;letter-spacing:-.35px;margin:0}
.practice-intro-detail .benefits{font-size:18px;margin-block:24px;gap:13px}
.practice-intro-detail .text-button{font-size:18px}
.illustrated-practice{border:1px solid #dfe5ef;background:#fff;border-radius:30px;box-shadow:0 28px 60px -30px #18356138;overflow:hidden}
.lesson-window-header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:23px 30px;border-bottom:1px solid #e4e9f1;background:#fff}
.lesson-window-title{display:flex;align-items:center;gap:14px;min-width:0}
.lesson-icon{display:grid;place-items:center;width:44px;height:46px;border-radius:12px;background:#eaf2ff;color:#1766cf;font-size:30px;flex-shrink:0}
.lesson-window-title b{display:block;font-size:18px;font-weight:600;letter-spacing:-.3px}
.lesson-window-title div>span{display:block;font-size:13px;color:#7c8798;margin-top:5px}
.lesson-demo-tag{padding:7px 11px;border:1px solid #dce5f3;border-radius:20px;color:#6b7d96;font-size:12px;white-space:nowrap}
.lesson-workspace{display:grid;grid-template-columns:1.08fr 1fr;align-items:stretch}
.illustrated-practice .practice-card{display:flex;flex-direction:column;border:0;border-radius:0;box-shadow:none;min-width:0;background:#fff}
.illustrated-practice .practice-main{padding:32px 32px 27px;flex:1}
.illustrated-practice .practice-main>.eyebrow{font-size:14px;color:#7b8698}
.illustrated-practice .practice-main h3{font-size:34px;letter-spacing:-1px;margin:13px 0 20px}
.illustrated-practice .practice-main>p:not(.hint){font-size:21px;line-height:1.5;margin:0}
.question-figure{margin:24px 0 28px;background:#f8fbff;border:1px solid #e4edf9;border-radius:17px;overflow:hidden}
.question-figure img{display:block;width:100%;height:auto}
.question-figure figcaption{font-size:12px;text-align:center;color:#6d83a3;padding:0 14px 15px}
.illustrated-practice #sample-form label{font-size:16px}
.illustrated-practice .answer-row{gap:14px}
.illustrated-practice .answer-row input{width:142px;max-width:45%;font-size:22px}
.illustrated-practice .answer-row>span{font-size:16px}
.illustrated-practice .answer-row .button{margin-left:auto;font-size:16px;padding-inline:23px}
.question-help-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:20px}
.question-help-actions .hint-button{margin:0;font-size:14px;min-height:43px;padding:11px 15px}
.question-help-actions .steps-button{width:auto;display:flex;gap:13px;border:0;font-size:14px;padding:11px 15px;min-height:43px;margin:0;border-radius:24px}
.illustrated-practice .hint{font-size:16px;margin-top:18px;line-height:1.5}
.illustrated-practice .feedback{font-size:16px;line-height:1.5;margin-top:17px}
.illustrated-practice .feedback:empty{display:none}
.illustrated-practice .practice-foot{padding:20px 32px;font-size:12px;line-height:1.5;border-top:1px solid #e9edf4;background:#fff}
.ai-tutor{min-width:0;background:linear-gradient(150deg,#f3f7ff,#fbfcff);border-left:1px solid #e0e8f5;padding:28px 29px}
.tutor-heading{display:flex;align-items:center;gap:13px;margin-bottom:23px}
.tutor-avatar{display:grid;place-items:center;width:43px;height:43px;flex-shrink:0;border-radius:14px;background:linear-gradient(145deg,#2677ef,#735ce1);color:#fff;font-size:17px;font-weight:650;box-shadow:0 6px 15px #3164d31f}
.tutor-heading h3{font-size:23px;color:#233b63;line-height:1.25;letter-spacing:-.6px;margin:0}
.tutor-heading p{font-size:13px;color:#7a8ba5;margin:5px 0 0}
.tutor-explanation{border:1px solid #dbe5f4;border-radius:18px;background:#fff;box-shadow:0 5px 15px #3864a208;overflow:hidden;scroll-margin-top:110px}
.coach-tabs{display:flex;gap:7px;padding:12px 13px;border-bottom:1px solid #e7edf7;background:#f9fbff}
.coach-tabs button{flex:1;min-height:37px;border:0;border-radius:9px;background:transparent;color:#7b8aa4;font-size:14px;cursor:pointer}
.coach-tabs button[aria-selected=true]{background:#2368d6;color:#fff;box-shadow:0 3px 7px #2069dd21}
.coach-step{padding:21px 23px 18px;min-height:242px}
.coach-step-kicker{font-size:12px;color:#7c8eab}
.coach-step h4{font-size:23px;line-height:1.2;letter-spacing:-.6px;color:#243c62;margin:10px 0 13px;font-weight:600}
.coach-step>p{font-size:16px;line-height:1.5;color:#687b99;margin:0}
.coach-equation{font-size:29px;color:#314d77;font-weight:500;letter-spacing:-.8px;margin:16px 0 13px;line-height:1.25}
.coach-equation strong{font-weight:600;color:#2269d5}
.coach-step>p.coach-step-note{font-size:14px;color:#517398}
.coach-step-navigation{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 23px;border-top:1px solid #edf1f7}
.coach-step-navigation>span{font-size:12px;color:#8a98ad}
.coach-step-navigation button{border:0;background:transparent;color:#2166c8;padding:3px 0;font-size:14px;cursor:pointer}
.coach-step-navigation button span{margin-left:12px}
.coach-chat{margin-top:26px}
.chat-heading{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:13px}
.chat-heading h4{font-size:17px;letter-spacing:-.3px;font-weight:600;margin:0;color:#2c4265}
.chat-heading>span{font-size:11px;color:#8394ac}
.chat-messages{display:flex;flex-direction:column;gap:13px;max-height:242px;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;padding:3px 3px 9px}
.chat-message{max-width:94%;overflow-wrap:anywhere}
.chat-message>span{display:block;font-size:10px;color:#8b99af;margin:0 4px 5px}
.chat-message>p{font-size:14px;line-height:1.5;padding:11px 14px;border-radius:13px;margin:0}
.from-child{align-self:flex-end}
.from-child>span{text-align:right}
.from-child>p{color:#3566a8;background:#e4eeff;border-bottom-right-radius:4px}
.from-coach{align-self:flex-start}
.from-coach>p{background:#fff;border:1px solid #e1e8f3;color:#627594;border-bottom-left-radius:4px}
.coach-suggestions{display:flex;gap:7px;flex-wrap:wrap;margin:13px 0 17px}
.coach-suggestions button{background:#fff;border:1px solid #dce6f5;color:#6080af;font-size:11px;padding:7px 10px;border-radius:20px;cursor:pointer}
.coach-suggestions button:hover{border-color:#7aa4df;color:#2366c6}
#coach-form>label{font-size:12px;color:#6f82a0;display:block;margin-bottom:8px}
.coach-input-row{display:grid;grid-template-columns:minmax(0,1fr) 38px;gap:8px;padding:7px;background:#fff;border:1px solid #cbdcf5;border-radius:14px;box-shadow:0 3px 10px #3165ab05}
.coach-input-row:focus-within{outline:2px solid #80a7ec;outline-offset:2px}
.coach-input-row input{min-width:0;width:100%;border:0;background:transparent;font:inherit;font-size:14px;color:#324a6b;padding:6px 8px;outline:none;box-shadow:none}
.coach-input-row input::placeholder{color:#99a8bd}
.coach-input-row button{width:38px;height:38px;border:0;background:#246cd9;color:#fff;border-radius:10px;font-size:25px;cursor:pointer}
.coach-input-row button:hover{background:#145ac0}
.coach-demo-note{font-size:10px;line-height:1.5;text-align:center;color:#93a2b7;margin:10px 0 0}
.practice-coverage-note{font-size:14px;color:#808a9b;text-align:center;line-height:1.5;margin:22px 20px 0}
@media(max-width:1100px){.practice-section .practice-intro{gap:40px}.practice-intro h2{font-size:50px}.practice-intro-detail>p{font-size:20px}.practice-intro-detail .benefits{font-size:16px}.illustrated-practice .practice-main{padding:27px 25px}.ai-tutor{padding:25px 23px}.coach-step{padding-inline:19px}.coach-step h4{font-size:22px}.coach-equation{font-size:26px}.chat-heading>span{display:none}.illustrated-practice .practice-main>p:not(.hint){font-size:20px}.illustrated-practice .practice-main h3{font-size:31px}.coach-step-navigation{padding-inline:19px}}
@media(max-width:850px){.practice-section .feature-section{max-width:690px}.practice-section .practice-intro{display:block;margin-bottom:36px}.practice-intro h2{font-size:56px;margin-bottom:27px}.practice-intro-detail>p{font-size:21px}.practice-intro-detail .benefits{font-size:18px}.lesson-workspace{grid-template-columns:1fr}.ai-tutor{border-left:0;border-top:1px solid #e0e8f5;padding:30px}.illustrated-practice .practice-main{padding:30px}.illustrated-practice .practice-main h3{font-size:36px}.illustrated-practice .practice-main>p:not(.hint){font-size:22px}.question-figure{max-width:520px;margin-inline:auto}.tutor-heading h3{font-size:26px}.coach-step{padding:24px 27px;min-height:220px}.coach-step h4{font-size:27px}.coach-step>p{font-size:18px}.coach-equation{font-size:32px}.coach-step>p.coach-step-note{font-size:16px}.coach-step-navigation{padding:16px 27px}.chat-heading>span{display:block;font-size:12px}.chat-heading h4{font-size:20px}.chat-message>p{font-size:16px}.chat-messages{max-height:255px}.chat-message>span{font-size:11px}.coach-suggestions button{font-size:13px}.coach-input-row input{font-size:16px}.coach-demo-note{font-size:11px}.coach-step-navigation button{font-size:16px}.coach-step-navigation>span{font-size:13px}}
@media(max-width:650px){.practice-section .practice-intro{margin-bottom:30px}.practice-intro .eyebrow{font-size:17px;line-height:1.4;margin-bottom:18px}.practice-intro h2{font-size:43px;letter-spacing:-1.8px;line-height:1.1;margin-bottom:23px}.practice-intro-detail>p{font-size:20px}.practice-intro-detail .benefits{font-size:16px;gap:13px;margin-block:22px}.practice-intro-detail .text-button{font-size:17px}.illustrated-practice{border-radius:23px}.lesson-window-header{padding:17px;gap:8px}.lesson-window-title{gap:10px}.lesson-icon{width:34px;height:37px;border-radius:10px;font-size:25px}.lesson-window-title b{font-size:15px}.lesson-window-title div>span{font-size:10px;line-height:1.5;margin-top:3px}.lesson-demo-tag{display:none}.illustrated-practice .practice-main{padding:24px 21px}.illustrated-practice .practice-main>.eyebrow{font-size:12px}.illustrated-practice .practice-main h3{font-size:29px;letter-spacing:-.9px;margin:12px 0 17px}.illustrated-practice .practice-main>p:not(.hint){font-size:19px;line-height:1.5}.question-figure{margin:21px 0 24px;border-radius:13px}.question-figure figcaption{font-size:12px;line-height:1.5;padding:0 8px 12px;color:#55739c}.illustrated-practice .answer-row{gap:10px}.illustrated-practice .answer-row input{width:110px;max-width:43%;font-size:20px}.illustrated-practice .answer-row .button{font-size:15px;padding-inline:18px}.illustrated-practice .answer-row>span{font-size:15px}.illustrated-practice #sample-form label{font-size:15px}.question-help-actions{gap:8px;margin-top:17px}.question-help-actions .hint-button,.question-help-actions .steps-button{font-size:12px;padding:10px 12px;min-height:39px}.question-help-actions .steps-button{gap:9px}.illustrated-practice .practice-foot{padding:17px 21px;font-size:11px}.illustrated-practice .hint,.illustrated-practice .feedback{font-size:15px}.ai-tutor{padding:23px 17px}.tutor-heading{gap:10px;margin-bottom:20px}.tutor-avatar{width:36px;height:36px;font-size:15px;border-radius:11px}.tutor-heading h3{font-size:22px;letter-spacing:-.5px}.tutor-heading p{font-size:11px;margin-top:4px}.tutor-explanation{border-radius:15px}.coach-tabs{padding:9px;gap:5px}.coach-tabs button{font-size:13px;min-height:35px}.coach-step{padding:20px 17px;min-height:250px}.coach-step-kicker{font-size:11px}.coach-step h4{font-size:23px;letter-spacing:-.6px;line-height:1.25;margin-block:10px 13px}.coach-step>p{font-size:16px;line-height:1.5}.coach-equation{font-size:27px;margin-block:15px}.coach-step>p.coach-step-note{font-size:14px}.coach-step-navigation{padding:13px 17px}.coach-step-navigation>span{font-size:11px}.coach-step-navigation button{font-size:13px}.coach-chat{margin-top:23px}.chat-heading h4{font-size:17px}.chat-heading>span{font-size:10px}.chat-message>p{font-size:14px;padding:10px 12px}.chat-message>span{font-size:10px}.chat-messages{max-height:260px;gap:12px}.coach-suggestions{gap:6px;margin-top:12px}.coach-suggestions button{font-size:11px;padding:7px 9px}.coach-input-row{grid-template-columns:minmax(0,1fr) 35px;gap:4px;padding:6px}.coach-input-row input{font-size:16px;padding-left:5px}.coach-input-row button{width:35px;height:37px;font-size:24px}.coach-demo-note{font-size:10px}.practice-coverage-note{font-size:12px;margin-inline:12px}}
@media(max-width:370px){.practice-intro h2{font-size:39px}.illustrated-practice .practice-main{padding-inline:18px}.lesson-window-title div>span{font-size:9px}.question-help-actions .hint-button,.question-help-actions .steps-button{font-size:11px}.ai-tutor{padding-inline:14px}.tutor-heading h3{font-size:20px}.coach-step{padding-inline:15px}.coach-equation{font-size:25px}.chat-heading>span{display:none}.coach-suggestions button{font-size:10px;padding-inline:8px}}