:root{--ink:#19213b;--muted:#687086;--paper:#fdfcf9;--cream:#f4f0e8;--violet:#6957d8;--violet-deep:#4b3fa8;--orange:#ee895c;--line:#ded9d0;--mint:#dcf2e7}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--ink);background:var(--paper);margin:0;font-family:DM Sans,Arial,sans-serif}a{color:inherit;text-decoration:none}button,input{font:inherit}.skip-link{background:var(--ink);color:#fff;z-index:100;border-radius:0 0 8px 8px;padding:10px 14px;transition:transform .15s;position:fixed;top:0;left:18px;transform:translateY(-120%)}.skip-link:focus{transform:translateY(0)}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--orange);outline-offset:3px}.site-header{z-index:10;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fdfcf9ed;border-bottom:1px solid #19213b17;justify-content:space-between;align-items:center;height:78px;padding:0 clamp(24px,5vw,72px);display:flex;position:sticky;top:0}.brand{letter-spacing:-1px;font-size:21px;font-weight:700}.brand span{color:var(--violet)}.site-header nav{color:#4e566b;gap:24px;font-size:14px;display:flex}.site-header nav a:hover{color:var(--violet)}.button{background:var(--ink);color:#fff;border:1px solid var(--ink);cursor:pointer;border-radius:99px;justify-content:center;align-items:center;padding:14px 21px;font-size:14px;font-weight:600;transition:all .2s;display:inline-flex}.button:hover{background:#313b5d;transform:translateY(-1px)}.button-small{padding:10px 17px}.button-light{color:var(--ink);background:#fff;border-color:#fff}.button-outline{color:var(--ink);background:0 0}.text-link{font-size:14px;font-weight:600}.text-link span{padding-left:4px}.eyebrow,.tiny-label{letter-spacing:1.2px;color:var(--violet);font-family:DM Mono,monospace;font-size:10px;font-weight:500;display:block}.tiny-label{color:var(--muted)}h1,h2,h3,p{margin-top:0}h1,h2{letter-spacing:-1.6px}h1{font-size:clamp(42px,5.3vw,76px);line-height:1.02}h2{font-size:clamp(31px,3.2vw,48px);line-height:1.08}h3{letter-spacing:-.5px}em{font-family:Playfair Display,Georgia,serif;font-weight:600}.hero{background:radial-gradient(circle at 82% 28%,#efe6fd 0,transparent 27%),var(--paper);grid-template-columns:1.1fr .9fr;align-items:center;gap:clamp(50px,8vw,140px);min-height:calc(100vh - 78px);padding:clamp(58px,8vw,120px) clamp(24px,9vw,144px);display:grid}.hero-copy .eyebrow{margin-bottom:20px}.hero-lede{max-width:560px;color:var(--muted);font-size:19px;line-height:1.6}.hero-actions{align-items:center;gap:24px;margin-top:32px;display:flex}.trust-row{color:#6b7182;flex-wrap:wrap;gap:10px;margin-top:55px;font-size:12px;display:flex}.hero-panel{background:#fff;border:1px solid #ded6ee;border-radius:20px;justify-self:end;width:100%;max-width:420px;padding:31px;box-shadow:20px 20px #eee8fb}.panel-label{letter-spacing:1.3px;color:#737389;font-family:DM Mono,monospace;font-size:10px}.readiness{grid-template-columns:1fr auto;align-items:end;margin:42px 0 16px;display:grid}.readiness span{color:var(--muted);font-size:14px}.readiness strong{letter-spacing:-4px;font-size:62px;line-height:.9}.readiness strong span{font-size:25px}.readiness small{color:#3d8b66;grid-column:1/-1;margin-top:7px}.progress-track{background:#e8e4f0;border-radius:9px;height:7px}.progress-track span{border-radius:inherit;background:var(--violet);height:100%;display:block}.next-card{background:#f6f4fa;border-radius:12px;margin-top:32px;padding:20px}.next-card strong{margin:8px 0 4px;display:block}.next-card p{color:var(--muted);margin-bottom:12px;font-size:13px}.next-card a{color:var(--violet-deep);font-size:13px;font-weight:700}.section{padding:clamp(72px,10vw,140px) clamp(24px,9vw,144px)}.section-soft{background:var(--cream)}.section-heading{justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:47px;display:flex}.section-heading h2{margin:12px 0 0}.section-heading>p{color:var(--muted);max-width:360px;margin:0;line-height:1.6}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;display:grid}.course-card{background:#fff;border:1px solid #ded9d0;border-radius:18px;min-height:280px;padding:30px}.course-card.violet{border-top:5px solid var(--violet)}.course-card.orange{border-top:5px solid var(--orange)}.course-card-top{justify-content:space-between;display:flex}.course-mark{width:35px;height:35px;color:var(--violet);background:#eeeaff;border-radius:50%;place-items:center;font-weight:700;display:grid}.orange .course-mark{color:#a64627;background:#ffe7dc}.course-card h3{margin:38px 0 10px;font-size:30px}.course-card p{color:var(--muted);max-width:430px;line-height:1.5}.course-actions{gap:20px;margin-top:28px;font-size:14px;font-weight:700;display:flex}.course-actions a:first-child{color:var(--violet-deep)}.loop-section{background:var(--ink);color:#fff}.loop-section .eyebrow{color:#b9aefa}.study-loop{grid-template-columns:repeat(4,1fr);gap:18px;display:grid}.loop-step{border-top:1px solid #ffffff59;padding-top:20px}.loop-step>span{color:#b9aefa;font-family:DM Mono,monospace;font-size:11px}.loop-step h3{margin:26px 0 8px;font-size:24px}.loop-step p{color:#c2c6d4;font-size:14px;line-height:1.5}.tutor-banner{color:#fff;background:linear-gradient(100deg,#755ddd,#a789e7);justify-content:space-between;align-items:center;gap:40px;display:flex}.tutor-banner .eyebrow{color:#e5dcff}.tutor-banner h2{margin:10px 0}.tutor-banner p:not(.eyebrow){color:#eee9ff;max-width:530px;line-height:1.55}footer{color:#abb3c8;background:#131a30;justify-content:space-between;gap:20px;padding:25px clamp(24px,5vw,72px);font-size:11px;display:flex}.course-hero{background:#f0edff;grid-template-columns:1fr 330px;gap:70px;padding:90px clamp(24px,9vw,144px);display:grid}.course-hero.orange{background:#fff0e9}.course-hero h1{margin:14px 0}.course-hero>div>p:not(.eyebrow){color:#515b73;max-width:580px;font-size:18px;line-height:1.6}.course-quick-links{background:#ffffffa6;border:1px solid #20194026;border-radius:15px;align-self:center;padding:23px}.course-quick-links a{border-bottom:1px solid #ddd9e9;justify-content:space-between;padding:14px 0;font-size:14px;display:flex}.course-quick-links a:last-child{border:0}.guide-purchase-cta{border:1px solid var(--line);background:#f8f6f0;border-radius:12px;justify-content:space-between;align-items:center;gap:20px;margin:-13px 0 28px;padding:18px 20px;display:flex}.guide-purchase-cta p{gap:4px;margin:0;display:grid}.guide-purchase-cta p strong{font-size:14px}.guide-purchase-cta p span{color:var(--muted);font-size:12px}.guide-purchase-cta .button{white-space:nowrap}.guide-purchase-cta .billing-message{margin:0}.unit-grid{grid-template-columns:repeat(4,1fr);gap:12px;display:grid}.unit-card{border:1px solid var(--line);border-radius:10px;min-height:225px;padding:20px}.unit-card>span{letter-spacing:1px;color:var(--violet);font-family:DM Mono,monospace;font-size:10px}.unit-card h3{margin:24px 0 7px;font-size:20px}.unit-card p{color:var(--muted);min-height:41px;font-size:13px;line-height:1.45}.unit-card a{color:var(--violet-deep);font-size:12px;font-weight:700}.tool-row{grid-template-columns:1fr 1.3fr;align-items:start;gap:70px;display:grid}.tool-row h2{margin-top:12px}.tool-links{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}.tool-links a{border-top:1px solid var(--ink);padding-top:14px}.tool-links strong{margin-bottom:10px;display:block}.tool-links span{color:var(--muted);font-size:13px;line-height:1.45}.dashboard-shell{grid-template-columns:250px 1fr;min-height:calc(100vh - 78px);display:grid}.dashboard-aside{border-right:1px solid var(--line);padding:50px 28px}.dashboard-aside h2{margin:10px 0 32px;font-size:32px}.dashboard-aside nav{gap:3px;display:grid}.dashboard-aside nav a{color:var(--muted);border-radius:7px;padding:11px;font-size:14px}.dashboard-aside nav a.active,.dashboard-aside nav a:hover{color:var(--violet-deep);background:#f0edff;font-weight:600}.aside-note{background:#f7f5ef;border-radius:10px;margin-top:46px;padding:16px}.aside-note p{color:var(--muted);font-size:12px;line-height:1.5}.aside-note button{color:var(--violet-deep);cursor:pointer;background:0 0;border:0;padding:0;font-size:12px;font-weight:700}.dashboard-content{max-width:1100px;padding:60px clamp(28px,7vw,105px)}.dashboard-content h1{margin:10px 0 14px}.dashboard-course-switch{gap:8px;margin-top:22px;display:flex}.dashboard-course-switch a{border:1px solid var(--line);color:var(--ink);border-radius:999px;padding:7px 10px;font-size:12px;text-decoration:none}.dashboard-course-switch a:hover,.dashboard-course-switch a.active{color:var(--violet);background:#f1effb;border-color:#ded8fb}.muted{color:var(--muted);line-height:1.55}.metric-grid{grid-template-columns:repeat(3,1fr);gap:15px;margin:28px 0 30px;display:grid}.metric-card{border:1px solid var(--line);border-radius:12px;padding:22px}.metric-card.primary{background:var(--ink);color:#fff;border-color:var(--ink)}.metric-card span{color:var(--muted);letter-spacing:1px;font-family:DM Mono,monospace;font-size:9px;display:block}.primary span{color:#c9c8e8}.metric-card strong{letter-spacing:-2px;margin:20px 0 6px;font-size:42px;display:block}.metric-card strong small{font-size:20px}.metric-card p{color:var(--muted);margin:0;font-size:12px}.primary p{color:#c9c8e8}.dashboard-columns{grid-template-columns:1.1fr .9fr;gap:18px;display:grid}.recommendation,.strengths{border-radius:13px;padding:30px}.recommendation{background:#ede9fc}.recommendation h2,.strengths h2{margin:9px 0;font-size:27px}.recommendation p:not(.tiny-label){color:#5e5b74;max-width:430px;line-height:1.55}.recommendation .button{margin-top:12px}.strengths{border:1px solid var(--line)}.strengths div{border-top:1px solid var(--line);justify-content:space-between;padding:12px 0;font-size:13px;display:flex}.strengths b{font-size:11px}.good{color:#31825d}.needs{color:#bb5f33}.tutor-shell{grid-template-columns:.8fr 1.2fr;gap:70px;max-width:1240px;min-height:calc(100vh - 78px);margin:auto;padding:70px 28px;display:grid}.tutor-shell aside h1{margin:12px 0;font-size:52px}.tutor-shell aside>p:not(.eyebrow){color:var(--muted);line-height:1.6}.tutor-course-switch{gap:8px;margin:20px 0 -15px;display:flex}.tutor-course-switch a{border:1px solid var(--line);color:var(--ink);border-radius:999px;padding:7px 10px;font-size:12px;text-decoration:none}.tutor-course-switch a:hover,.tutor-course-switch a.active{color:var(--violet);background:#f1effb;border-color:#ded8fb}.mode-list{gap:7px;margin-top:35px;display:grid}.mode-list button{text-align:left;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:10px;padding:13px}.mode-list button:hover,.mode-list .selected{background:#f1effb;border-color:#ded8fb}.mode-list strong,.mode-list span{display:block}.mode-list strong{font-size:14px}.mode-list span{color:var(--muted);margin-top:3px;font-size:12px}.chat-panel{border:1px solid var(--line);background:#fff;border-radius:16px;flex-direction:column;min-height:590px;display:flex;overflow:hidden}.chat-top{border-bottom:1px solid var(--line);padding:16px 20px;font-size:13px;font-weight:600}.chat-top small{float:right;color:var(--muted);font-weight:400}.status-dot{background:#4daf7d;border-radius:50%;width:8px;height:8px;margin-right:7px;display:inline-block}.chat-body{background:#fcfbf7;flex-direction:column;flex:1;gap:16px;padding:25px;display:flex}.empty-chat{text-align:center;align-self:center;max-width:330px;margin:auto}.empty-chat>span{color:var(--violet);font-size:30px}.empty-chat h2{margin:13px 0 8px;font-size:28px}.empty-chat p{color:var(--muted);font-size:14px;line-height:1.5}.message{border-radius:12px;max-width:78%;padding:14px;font-size:14px;line-height:1.5}.student{background:var(--ink);color:#fff;align-self:end}.tutor{background:#eeeafb}.tutor p{margin:5px 0 0}.chat-panel form{border-top:1px solid var(--line);gap:9px;padding:12px;display:flex}.chat-panel input{border:1px solid var(--line);outline-color:var(--violet);border-radius:8px;flex:1;padding:12px}.chat-panel form .button{padding:10px 18px}.chat-note{color:var(--muted);margin:0;padding:0 18px 13px;font-size:10px}.diagnostic-shell{grid-template-columns:minmax(0,1.02fr) minmax(370px,.98fr);align-items:center;gap:clamp(45px,8vw,110px);max-width:1240px;margin:0 auto;padding:clamp(68px,10vw,128px) 28px 82px;display:grid}.diagnostic-copy h1{letter-spacing:-.055em;max-width:700px;margin:14px 0 24px;font-size:clamp(44px,5.5vw,77px);line-height:.96}.diagnostic-copy h1 em{color:var(--violet);font-style:normal}.diagnostic-lede{max-width:600px;color:var(--muted);font-size:17px;line-height:1.62}.diagnostic-copy .tutor-course-switch{margin:28px 0 0}.diagnostic-actions{align-items:center;gap:22px;margin:28px 0 16px;display:flex}.diagnostic-status{color:#4d4277;background:#f2efff;border-radius:9px;max-width:610px;padding:12px 14px;font-size:12px;line-height:1.45}.diagnostic-fine-print{max-width:560px;color:var(--muted);font-size:11px;line-height:1.5}.diagnostic-panel{border:1px solid var(--line);background:#fff;border-radius:20px;overflow:hidden;box-shadow:0 22px 65px #1f284812}.diagnostic-panel-top{border-bottom:1px solid var(--line);padding:17px 22px;font-size:13px;font-weight:700}.diagnostic-panel-top small{float:right;color:var(--muted);font-weight:500}.diagnostic-questions{background:linear-gradient(145deg,#fcfbff 0%,#f3f0ff 100%);padding:44px 38px 33px}.question-steps{gap:7px;margin:16px 0 32px;display:flex}.question-steps span{color:#81799c;border:1px solid #d9d3ed;border-radius:50%;place-items:center;width:29px;height:29px;font-family:DM Mono,monospace;font-size:10px;display:grid}.question-steps span.current{background:var(--violet);color:#fff;border-color:var(--violet);box-shadow:0 0 0 5px #7057e224}.diagnostic-questions h2{letter-spacing:-.045em;max-width:450px;margin:0 0 13px;font-size:clamp(28px,3vw,42px);line-height:1.02}.diagnostic-questions p:not(.tiny-label){color:#5e5878;max-width:460px;font-size:14px;line-height:1.55}.diagnostic-flow{gap:17px;padding:24px 28px 27px;display:grid}.diagnostic-flow div{align-items:center;gap:13px;display:flex}.diagnostic-flow b{width:28px;height:28px;color:var(--violet-deep);background:#ece7ff;border-radius:50%;place-items:center;font-family:DM Mono,monospace;font-size:11px;display:grid}.diagnostic-flow span,.diagnostic-flow strong,.diagnostic-flow small{display:block}.diagnostic-flow strong{font-size:13px}.diagnostic-flow small{color:var(--muted);margin-top:2px;font-size:11px}.diagnostic-promise{border-top:1px solid var(--line);grid-template-columns:1fr 1fr;gap:70px;max-width:1184px;margin:0 auto;padding:72px 28px;display:grid}.diagnostic-promise h2{letter-spacing:-.05em;margin:13px 0;font-size:clamp(32px,4vw,52px);line-height:1}.diagnostic-promise p:not(.eyebrow){max-width:520px;color:var(--muted);line-height:1.65}.diagnostic-memory-list{border:1px solid var(--line);border-radius:15px;align-self:center;padding:7px 25px}.diagnostic-memory-list div{border-bottom:1px solid var(--line);grid-template-columns:95px 1fr;gap:18px;padding:22px 0;display:grid}.diagnostic-memory-list div:last-child{border-bottom:0}.diagnostic-memory-list strong{color:var(--violet-deep);font-size:13px}.diagnostic-memory-list span{color:var(--muted);font-size:13px;line-height:1.5}.diagnostic-preview-note{max-width:1184px;margin:0 auto 75px;padding:0 28px}.diagnostic-preview-note p{border-left:3px solid var(--violet);color:#5a5572;background:#f7f5ff;margin:0;padding:17px 20px;font-size:12px;line-height:1.55}.diagnostic-return{color:var(--violet-deep);margin-top:31px;font-size:12px;font-weight:700;text-decoration:none;display:inline-block}.diagnostic-action-error{color:#a13f26;max-width:330px;margin:9px 0 0;font-size:12px;line-height:1.45}.practice-shell{max-width:1180px;margin:auto;padding:45px 28px 80px}.practice-meta{letter-spacing:.7px;color:var(--muted);align-items:center;gap:20px;font-family:DM Mono,monospace;font-size:10px;display:flex}.practice-meta a{color:var(--violet-deep)}.practice-meta b{margin-left:auto;font-weight:500}.question-layout{grid-template-columns:1fr 290px;gap:38px;margin-top:38px;display:grid}.question-card{border:1px solid var(--line);border-radius:14px;padding:clamp(28px,5vw,60px)}.question-card h1{margin:13px 0 37px;font-size:clamp(30px,3.6vw,48px)}.answer-list{gap:10px;display:grid}.answer-list button{border:1px solid var(--line);text-align:left;cursor:pointer;background:#fff;border-radius:9px;align-items:center;gap:14px;padding:15px;display:flex}.answer-list button:hover,.answer-list button.chosen{border-color:var(--violet);background:#f3f1ff}.answer-list span{border:1px solid var(--line);border-radius:50%;place-items:center;width:25px;height:25px;font-size:11px;display:grid}.feedback{background:#fff1e8;border:1px solid #f0c7ad;border-radius:9px;margin-top:20px;padding:18px}.feedback.correct{background:#e8f6ee;border-color:#b4dfc5}.feedback p{color:#505b62;font-size:14px;line-height:1.5}.feedback button{color:var(--violet-deep);cursor:pointer;background:0 0;border:0;padding:0;font-size:13px;font-weight:700}.practice-aside{background:#f3f0ff;border-radius:12px;align-self:start;padding:25px}.practice-aside h2{margin:8px 0;font-size:27px}.practice-aside p{color:#5d5a74;font-size:13px;line-height:1.5}.practice-aside hr{border:0;border-top:1px solid #dbd5f1;margin:22px 0}.practice-aside span{color:var(--muted);justify-content:space-between;padding:8px 0;font-size:12px;display:flex}.practice-aside b{color:var(--ink)}.practice-directory{max-width:960px;margin:0 auto;padding:clamp(76px,12vw,142px) 28px 100px}.practice-directory>h1{letter-spacing:-.055em;max-width:720px;margin:13px 0 20px;font-size:clamp(42px,5.7vw,68px);line-height:.98}.practice-directory>p:not(.eyebrow){max-width:720px;color:var(--muted);font-size:17px;line-height:1.65}.practice-intro{border-top:1px solid var(--line);border-bottom:1px solid var(--line);grid-template-columns:.88fr 1.12fr;gap:45px;margin-top:48px;padding:30px 0 36px;display:grid}.practice-intro h2{margin:10px 0 0;font-size:clamp(27px,3vw,40px)}.practice-intro-copy{gap:14px;display:grid}.practice-intro-copy p{color:var(--muted);margin:0;font-size:14px;line-height:1.65}.practice-course-grid{grid-template-columns:1fr 1fr;gap:16px;margin-top:42px;display:grid}.practice-course-card{border:1px solid var(--line);background:#fff;border-radius:15px;padding:32px}.practice-course-card.biology{background:#f3f0ff;border-color:#dfd8ff}.practice-course-card.psychology{background:#fff8ed;border-color:#f1dfbe}.practice-course-card h2{margin:10px 0;font-size:31px}.practice-course-card p:not(.tiny-label){color:var(--muted);min-height:66px;font-size:14px;line-height:1.55}.practice-course-card .button{margin-top:9px}.practice-course-card .button-outline{border:1px solid var(--ink);color:var(--ink);background:0 0}.practice-course-card .button-outline:hover{background:var(--ink);color:#fff}.practice-directory-note{margin-top:24px;font-size:12px!important}.biology-hero{background:radial-gradient(circle at 82% 25%,#e9e4ff 0,#0000 28%),#f5f3fc;grid-template-columns:minmax(0,1.12fr) minmax(280px,.72fr);align-items:center;gap:clamp(42px,8vw,115px);padding:clamp(76px,11vw,145px) clamp(24px,9vw,144px);display:grid}.biology-hero h1{letter-spacing:-.06em;max-width:690px;margin:13px 0 21px;font-size:clamp(46px,5.5vw,76px);line-height:.96}.biology-hero h1 em{color:var(--violet);font-style:normal}.biology-hero>div>p:not(.eyebrow){color:#59617a;max-width:650px;font-size:18px;line-height:1.62}.biology-overview{background:#ffffffc7;border:1px solid #d9d2f2;border-radius:18px;padding:31px}.biology-overview strong{letter-spacing:-.08em;margin-top:25px;font-size:68px;line-height:.8;display:block}.biology-overview>span{color:var(--muted);margin-top:9px;font-size:14px;display:block}.biology-overview hr{border:0;border-top:1px solid #ddd8ec;margin:28px 0}.biology-overview p:not(.tiny-label){color:#5e5874;font-size:14px;line-height:1.6}.biology-overview a,.biology-unit-grid a{color:var(--violet-deep);font-size:13px;font-weight:700}.biology-unit-grid{grid-template-columns:repeat(4,1fr);gap:14px;display:grid}.biology-unit-grid article{border:1px solid var(--line);background:#fff;border-radius:12px;min-height:240px;padding:22px}.biology-unit-grid span,.biology-unit-grid small{letter-spacing:.7px;font-family:DM Mono,monospace;font-size:10px;display:block}.biology-unit-grid span{color:var(--violet)}.biology-unit-grid small{color:var(--muted);letter-spacing:0;margin-top:7px}.biology-unit-grid h3{margin:27px 0 10px;font-size:22px}.biology-unit-grid p{min-height:64px;color:var(--muted);font-size:13px;line-height:1.5}.biology-practice-grid{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.biology-practice-grid div{background:#fff;border:1px solid #ded8ee;border-radius:10px;padding:18px}.biology-practice-grid strong,.biology-practice-grid span{display:block}.biology-practice-grid strong{font-size:14px}.biology-practice-grid span{color:var(--muted);margin-top:6px;font-size:11px}.biology-decision{color:#555d74;max-width:800px;margin:30px 0 0;line-height:1.65}.biology-next-step{justify-content:space-between;align-items:center;gap:50px;display:flex}.biology-next-step h2{margin:11px 0}.biology-next-step p:not(.eyebrow){max-width:650px;color:var(--muted);line-height:1.6}.biology-next-actions{flex-wrap:wrap;justify-content:flex-end;gap:12px;min-width:310px;display:flex}.verification-note{max-width:1184px;margin:0 auto;padding:0 28px 58px}.verification-note p{border-left:3px solid var(--violet);color:#5a5670;background:#f6f4fc;margin:0;padding:15px 18px;font-size:11px;line-height:1.6}.verification-note a{color:var(--violet-deep);text-decoration:underline}.pricing-hero{text-align:center;max-width:720px;margin:auto;padding:90px 25px 55px}.pricing-hero h1{margin:14px 0}.pricing-hero>p:not(.eyebrow){color:var(--muted);line-height:1.6}.price-grid{grid-template-columns:1fr 1fr;gap:16px;max-width:860px;margin:0 auto 50px;padding:0 25px;display:grid}.price-grid article{border:1px solid var(--line);border-radius:14px;padding:32px}.price-grid .featured{background:var(--ink);color:#fff;border-color:var(--ink)}.price-grid h2{margin:11px 0;font-size:31px}.price-grid article>p:not(.eyebrow){color:var(--muted);min-height:65px;font-size:14px;line-height:1.55}.price-grid .featured>p:not(.eyebrow){color:#cbd0df}.price-grid ul{color:var(--muted);min-height:120px;padding-left:18px;font-size:13px;line-height:2.1}.price-grid .featured ul{color:#dce1ed}.price-grid button:disabled{opacity:.7;cursor:not-allowed}.pricing-footnote{text-align:center;color:var(--muted);padding:0 25px 70px;font-size:11px}.tutor-error,.billing-message{color:#a13f26;background:#fff1e8;border:1px solid #f0c7ad;border-radius:8px;padding:10px 12px;font-size:12px;line-height:1.4}.account-shell{max-width:850px;margin:0 auto;padding:90px 28px}.account-shell>h1{margin:11px 0 45px}.profile-settings,.course-settings,.preference-card,.memory-card{border:1px solid var(--line);border-radius:13px;justify-content:space-between;align-items:center;gap:30px;padding:28px;display:flex}.profile-settings,.course-settings{background:#f8f6f0;align-items:end;margin-bottom:20px}.profile-settings h2,.course-settings h2,.preference-card h2,.memory-card h2{margin:0 0 9px;font-size:25px}.profile-settings p:not(.tiny-label),.course-settings p:not(.tiny-label),.preference-card p,.memory-card p:not(.tiny-label){color:var(--muted);max-width:570px;margin-bottom:0;font-size:14px;line-height:1.55}.profile-settings form,.course-settings form{grid-template-columns:repeat(2,minmax(125px,1fr));gap:10px;min-width:330px;display:grid}.profile-settings label,.course-settings label{color:var(--muted);gap:5px;font-size:11px;display:grid}.profile-settings input,.course-settings input,.course-settings select{border:1px solid var(--line);color:var(--ink);font:inherit;background:#fff;border-radius:7px;padding:9px}.profile-settings .button,.course-settings .button{justify-self:end}.profile-settings .setting-message{grid-column:1/-1;margin:0}.toggle{white-space:nowrap;cursor:pointer;align-items:center;gap:9px;font-size:12px;display:flex}.toggle input{opacity:0;position:absolute}.toggle span{background:#c8c4bd;border-radius:20px;width:43px;height:24px;transition:all .2s;position:relative}.toggle span:after{content:"";background:#fff;border-radius:50%;width:18px;height:18px;transition:all .2s;position:absolute;top:3px;left:3px}.toggle input:checked+span{background:var(--violet)}.toggle input:checked+span:after{transform:translate(19px)}.setting-message{color:#3d785b;background:#e8f6ee;border-radius:8px;padding:10px 13px;font-size:13px}.memory-card{background:#f8f6f0;margin-top:20px;display:block}.memory-card .tiny-label{margin-bottom:9px}.memory-card .text-link{color:var(--violet-deep);margin-top:19px;display:inline-block}.dashboard-empty{text-align:center;max-width:700px;margin:0 auto;padding:clamp(100px,18vw,190px) 28px}.dashboard-empty h1{margin:12px 0}.dashboard-empty p:not(.eyebrow){color:var(--muted);max-width:520px;margin:0 auto 27px;line-height:1.6}.save-note{color:#3c765b!important;margin:15px 0 0!important;font-size:12px!important}.data-controls{border:1px solid var(--line);border-radius:13px;justify-content:space-between;align-items:end;gap:28px;margin-top:20px;padding:28px;display:flex}.data-controls h2{margin:9px 0;font-size:25px}.data-controls p:not(.tiny-label){color:var(--muted);max-width:510px;margin:0;font-size:14px;line-height:1.55}.data-controls>div:last-child{flex-wrap:wrap;gap:10px;display:flex}.data-controls form{margin:0}.signout-button{border:1px solid var(--line);color:var(--ink);cursor:pointer;background:0 0;border-radius:99px;padding:12px 17px;font-size:13px;font-weight:600}.signout-button:hover{border-color:var(--violet);color:var(--violet-deep)}.danger-button{color:#9f422c;cursor:pointer;background:0 0;border:1px solid #b75942;border-radius:99px;padding:12px 17px;font-size:13px;font-weight:600}.consent-check{color:var(--muted);line-height:1.5;font-size:11px!important;display:block!important}.consent-check input{margin-right:7px}.consent-check a{color:var(--violet-deep);text-decoration:underline}.legal-page{max-width:760px;margin:0 auto;padding:100px 28px}.legal-page h1{margin:12px 0}.legal-page p:not(.eyebrow){color:var(--muted);margin-bottom:26px;font-size:17px;line-height:1.7}.auth-shell{grid-template-columns:1fr 460px;align-items:start;gap:100px;max-width:1100px;margin:0 auto;padding:90px 28px;display:grid}.auth-shell>div>p:not(.eyebrow){color:var(--muted);max-width:440px;font-size:17px;line-height:1.6}.auth-note{border-left:3px solid var(--violet);margin-top:35px;padding-left:14px;font-size:13px!important}.auth-card{border:1px solid var(--line);background:#fff;border-radius:15px;padding:30px}.auth-card h2{margin-bottom:20px;font-size:31px}.auth-card form{gap:14px;display:grid}.auth-card label{gap:7px;font-size:12px;font-weight:600;display:grid}.auth-card input{border:1px solid var(--line);outline-color:var(--violet);border-radius:8px;padding:12px}.auth-card form .button{width:100%;margin-top:4px}.form-helper-link{color:var(--violet-deep);margin-top:13px;font-size:12px;display:inline-block}.form-divider{color:var(--muted);align-items:center;gap:10px;margin:19px 0;font-size:11px;display:flex}.form-divider:before,.form-divider:after{content:"";background:var(--line);flex:1;height:1px}.auth-message{color:#4e396e;background:#f0edff;border-radius:7px;padding:10px;font-size:12px;line-height:1.4}.legal-copy{color:var(--muted);margin:19px 0;font-size:10px;line-height:1.5}@media (max-width:850px){.site-header nav{display:none}.hero,.course-hero,.tutor-shell,.auth-shell,.diagnostic-shell,.diagnostic-promise,.practice-intro,.biology-hero{grid-template-columns:1fr}.hero{min-height:auto}.hero-panel{justify-self:start}.study-loop,.unit-grid,.biology-unit-grid{grid-template-columns:repeat(2,1fr)}.tool-row,.dashboard-columns,.question-layout,.dashboard-shell{grid-template-columns:1fr}.dashboard-aside{display:none}.course-quick-links{max-width:420px}.profile-settings,.course-settings{display:block}.profile-settings form,.course-settings form{margin-top:20px}.tutor-shell{gap:35px}.chat-panel{min-height:480px}.auth-shell{gap:40px}.diagnostic-shell{gap:45px}.diagnostic-promise{gap:32px}.biology-next-step{display:block}.biology-next-actions{justify-content:flex-start;margin-top:24px}}@media (max-width:560px){.site-header{height:65px;padding:0 18px}.button-small{padding:8px 12px}.hero,.section,.course-hero,.biology-hero{padding-left:22px;padding-right:22px}.course-grid,.metric-grid,.price-grid,.study-loop,.unit-grid,.tool-links,.practice-course-grid,.biology-unit-grid,.biology-practice-grid{grid-template-columns:1fr}.section-heading{display:block}.section-heading>p{margin-top:15px}.hero-actions{flex-direction:column;align-items:flex-start;gap:17px}.hero-panel{padding:23px}.course-hero{padding-top:58px;padding-bottom:58px}.guide-purchase-cta{flex-direction:column;align-items:flex-start}.practice-meta{flex-wrap:wrap}.practice-meta b{margin-left:0}.question-card{padding:25px 18px}.profile-settings form,.course-settings form{grid-template-columns:1fr;min-width:0}.profile-settings .button,.course-settings .button{justify-self:start}.tutor-shell aside h1{font-size:42px}footer{line-height:1.8;display:block}}.purchase-success{max-width:780px;margin:0 auto;padding:88px 28px}.purchase-success>p{color:var(--muted);max-width:620px;line-height:1.6}.guide-tutor-offer{background:var(--violet-deep);color:#fff;border-radius:16px;margin:36px 0 26px;padding:30px}.guide-tutor-offer h2{margin:8px 0}.guide-tutor-offer p{color:#e5e0ff;line-height:1.55}.guide-tutor-offer strong{color:#fff}.guide-tutor-offer .button{color:var(--violet-deep);background:#fff}.pricing-offer-note{color:var(--muted);margin:16px 0 0;font-size:13px;line-height:1.45}.featured .pricing-offer-note{color:#dce1ed}.billing-controls{border:1px solid var(--line);background:#f8f6f0;border-radius:13px;grid-template-columns:1fr auto;align-items:center;gap:20px;margin:0 0 20px;padding:28px;display:grid}.billing-controls h2{margin:8px 0;font-size:25px}.billing-controls p:not(.tiny-label){color:var(--muted);margin:0;font-size:14px;line-height:1.55}.billing-actions{align-self:center}.guide-ownership{border-top:1px solid var(--line);grid-column:1/-1;justify-content:space-between;gap:20px;padding-top:15px;font-size:13px;display:flex}.guide-ownership span{color:var(--muted)}.guide-ownership b{text-align:right}.billing-controls .billing-message{grid-column:1/-1;margin:0}.status-page{max-width:760px;margin:0 auto;padding:clamp(100px,18vw,190px) 28px}.status-page h1{margin:12px 0}.status-page>p:not(.eyebrow){max-width:560px;color:var(--muted);font-size:17px;line-height:1.65}.status-page>div{align-items:center;gap:24px;margin-top:28px;display:flex}.parent-start-shell,.parent-dashboard-shell{max-width:1060px;margin:0 auto;padding:90px 28px}.parent-start-shell>h1,.parent-dashboard-shell>h1{max-width:700px;margin:11px 0 15px}.parent-start-shell>.muted,.parent-dashboard-shell>.muted{max-width:720px;line-height:1.6}.parent-workflow-card,.parent-recipient-card{border:1px solid var(--line);background:#f8f6f0;border-radius:13px;padding:28px}.parent-start-shell .parent-workflow-card{max-width:720px;margin-top:34px}.parent-workflow-card h2,.parent-recipient-card h2{margin:4px 0 9px;font-size:25px}.parent-workflow-card p:not(.tiny-label),.parent-recipient-card p:not(.tiny-label),.parent-dashboard-note{color:var(--muted);font-size:14px;line-height:1.55}.parent-course-picker{gap:9px;margin:21px 0;display:flex}.parent-course-picker button{border:1px solid var(--line);color:var(--ink);font:inherit;cursor:pointer;background:#fff;border-radius:999px;padding:9px 14px}.parent-course-picker button.selected{color:var(--violet-deep);background:#f0edff;border-color:#c9c0ff}.parent-dashboard-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:32px 0 20px;display:grid}.compact-workflow-form{grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:10px;margin-top:18px;display:grid}.compact-workflow-form label{color:var(--muted);gap:5px;font-size:11px;display:grid}.compact-workflow-form input{border:1px solid var(--line);color:var(--ink);font:inherit;background:#fff;border-radius:7px;padding:10px}.compact-workflow-form .setting-message{grid-column:1/-1;margin:0}.workflow-confirmed{font-weight:600;color:#3d785b!important}.parent-recipient-card{margin-top:20px}.recipient-list{border-top:1px solid var(--line);margin:20px 0 0;padding:0;list-style:none}.recipient-list li{border-bottom:1px solid var(--line);color:var(--ink);justify-content:space-between;gap:20px;padding:12px 0;font-size:14px;display:flex}.recipient-list b{font-size:12px}.recipient-list .pending{color:var(--muted)}.parent-dashboard-note{margin-top:20px}.parent-metric-row{gap:12px;margin:18px 0;display:flex}.parent-metric-row span{color:var(--muted);background:#fff;border-radius:8px;flex:1;gap:4px;padding:12px;font-size:11px;display:grid}.parent-metric-row b{color:var(--ink);font-size:22px}.recipient-list li>div{align-items:center;gap:10px;display:flex}.recipient-remove{color:var(--violet-deep);font:inherit;cursor:pointer;background:0 0;border:0;padding:0;font-size:11px;font-weight:700}@media (max-width:850px){.parent-dashboard-grid{grid-template-columns:1fr}}@media (max-width:560px){.parent-start-shell,.parent-dashboard-shell{padding-left:22px;padding-right:22px}.compact-workflow-form{grid-template-columns:1fr}}