:root{--blue:#3743ff;--blue-2:#171fea;--ink:#151515;--muted:#8d8d93;--line:#949494;--paper:#fff;--warn:#d50000}*{box-sizing:border-box}html{font-family:Arial,Helvetica,sans-serif;background:#fff;color:var(--ink);-webkit-text-size-adjust:100%}body{margin:0;min-height:100vh;background:#fff}button,input,textarea{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #9ba1ff;outline-offset:2px}[hidden]{display:none!important}.skip-link{position:fixed;top:-50px;left:12px;z-index:50;padding:9px 12px;background:#111;color:#fff}.skip-link:focus{top:12px}
.gate{position:fixed;inset:0;z-index:20;display:grid;place-items:center;padding:24px;background:#f9f9fb}.gate-card{width:min(100%,450px);padding:36px 38px;border:1px solid #dfdfe3;background:#fff;box-shadow:none}.go-logo{display:block;width:auto;height:40px;object-fit:contain;object-position:left}.eyebrow{margin:22px 0 8px;color:var(--blue);font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase}.gate h1{margin:0;font-size:42px;line-height:1.03;letter-spacing:-2.3px}.gate-copy{margin:16px 0 27px;color:#6d7080;line-height:1.5}.access-form label{display:block;margin-bottom:8px;font-size:14px;font-weight:700}.code-row{display:flex;gap:8px}.code-row input{min-width:0;flex:1;padding:12px;border:1px solid #bfc1cc;border-radius:0;background:#fff}.code-row button,.message-form button,.hero-actions button{border:1px solid var(--blue);border-radius:0;padding:12px 15px;background:var(--blue);color:#fff;font-weight:700}.code-row button:hover,.message-form button:hover,.hero-actions button:hover{background:var(--blue-2)}.form-error{margin:9px 0 0;color:#ae0000;font-size:13px}.gate-notice{margin-top:24px;padding:13px 14px;border:1px solid #efcd75;background:#fffaf0;color:#704c00;font-size:13px;line-height:1.45}
.go-app{min-height:100vh}.go-header{display:flex;align-items:center;justify-content:space-between;max-width:calc(100% - 84px);margin:0 auto;padding:36px 6px 23px;border-bottom:1px solid var(--line)}.go-brand{display:flex;align-items:center;gap:12px;text-decoration:none}.go-brand .go-logo{height:35px}.brand-divider{width:1px;height:23px;background:#b7b7bb}.brand-title{color:#9a9a9d;font-size:26px;letter-spacing:-1.5px}.header-actions{display:flex;gap:12px}.nav-icon{display:grid;width:50px;height:50px;place-items:center;border:0;border-radius:0;color:#fff;background:var(--blue);font-size:31px;line-height:1}.nav-icon:hover{background:var(--blue-2)}
.go-main{max-width:calc(100% - 84px);margin:0 auto;padding:29px 6px 38px}.hero-grid{display:grid;grid-template-columns:1.45fr 1.45fr .74fr;gap:17px}.welcome-card{min-height:218px;padding:46px 53px;color:#fff;background:var(--blue)}.welcome-card .eyebrow{margin:0 0 8px;color:rgba(255,255,255,.7)}.welcome-card h1{margin:0;font-size:45px;font-weight:400;letter-spacing:-2.8px;line-height:1.02}.welcome-card p:not(.eyebrow){margin:12px 0 15px;color:#e7e8ff}.hero-actions{display:flex;gap:8px}.hero-actions button{padding:10px 18px;background:#fff;color:#171717;border-color:#fff}.hero-actions .secondary{color:#fff;background:transparent}.week{display:flex;gap:12px;margin-top:18px}.week span{display:grid;width:32px;height:32px;place-items:center;background:#00b712;color:#fff;font-size:15px;font-weight:700}.week .off{background:#ff0000}.school-card{position:relative;min-height:218px;overflow:hidden;padding:130px 30px 24px;color:#fff;background:linear-gradient(90deg,rgba(43,65,255,.9),rgba(59,64,255,.62)),url('/Frame%206%20(43)%202%20(1).png') center/cover}.school-card span{position:absolute;top:126px;left:30px;font-size:42px}.school-card p{margin:0 0 0 64px;font-size:17px}.school-card h2{margin:0 0 0 64px;font-size:29px;letter-spacing:-1.7px}.support-card{min-height:218px;padding:20px;color:#fff;background:#222225}.support-card h2{margin:0 0 10px;font-size:20px;font-weight:400}.support-card p{margin:0;line-height:1.36}.support-card a{display:inline-block;margin-top:18px;padding:8px 13px;background:#4e58ff;color:#fff;font-size:13px;text-decoration:none}
.safety-card{display:flex;gap:15px;margin:20px 0;padding:17px 18px;background:#df0000;color:#fff}.safety-icon{display:grid;flex:0 0 auto;width:24px;height:24px;place-items:center;border:1px solid #fff;border-radius:50%;font-weight:700}.safety-card h2{margin:0 0 3px;font-size:16px}.safety-card p{margin:0;font-size:14px;line-height:1.4}.workspace{display:grid;grid-template-columns:1fr 2.15fr;gap:17px;margin-top:20px}.courses,.chat-panel{border:1px solid #ddd;background:#fff}.courses{padding:18px}.section-heading{display:flex;justify-content:space-between;margin-bottom:12px}.section-heading h2{margin:0;font-size:18px}.section-heading span{color:var(--muted);font-size:13px}.course-list{display:grid;gap:0}.course{display:flex;align-items:center;gap:11px;width:100%;padding:13px 10px;text-align:left;border:0;border-bottom:1px solid #e6e6e8;background:#fff;color:#222}.course:hover,.course.active{background:#eef0ff;color:#222}.course-color{display:block;width:10px;height:37px;background:#323cff}.violet{background:#7f52dd}.sky{background:#32a6d2}.green{background:#20a953}.course b,.course small{display:block}.course b{font-size:15px}.course small{color:#777;font-size:12px}.clear-btn{width:100%;margin-top:18px;padding:10px;border:1px solid #bbb;border-radius:0;background:#fff;font-size:12px}.chat-panel{display:flex;flex-direction:column;min-height:530px}.chat-header{display:flex;align-items:center;gap:12px;padding:17px;border-bottom:1px solid #ddd}.tutor-avatar{display:grid;width:38px;height:38px;place-items:center;border-radius:50%;background:#dcdcdc;color:#777}.chat-header h2{margin:0;font-size:17px}.chat-header p{margin:3px 0 0;color:#777;font-size:12px}.presence{display:inline-block;width:8px;height:8px;margin-right:5px;border-radius:50%;background:#00cd54}.help-btn{margin-left:auto;padding:8px 10px;border:1px solid #aaa;border-radius:0;background:#fff;font-size:12px}.chat-notice{margin:14px 17px 0;padding:12px 14px;background:#df0000;color:#fff;font-size:13px;line-height:1.35}.messages{display:flex;flex:1;flex-direction:column;gap:11px;margin:0;padding:20px;overflow:auto;list-style:none}.message{align-self:flex-start;max-width:80%;padding:11px 13px;border:2px solid #bbb;border-radius:9px;background:#fff}.message.self{align-self:flex-end;border:0;border-radius:9px;background:#5140ff;color:#fff}.message p{margin:0;white-space:pre-wrap;overflow-wrap:anywhere}.message time{display:block;margin-top:4px;color:#777;font-size:10px}.message.self time{color:#e6e4ff}.message-form{display:flex;gap:10px;padding:15px;border-top:1px solid #ddd}.message-form textarea{flex:1;min-height:45px;max-height:120px;resize:vertical;padding:12px;border:0;border-radius:8px;background:#000;color:#fff}.message-form button{align-self:end}.go-footer{max-width:calc(100% - 84px);margin:0 auto;padding:0 6px 25px;color:#888;font-size:12px}.tips-dialog{width:min(92vw,420px);padding:28px;border:0;border-radius:0;box-shadow:0 20px 60px #0005}.tips-dialog::backdrop{background:#0008}.tips-dialog h2{margin:0;font-size:27px}.tips-dialog ul{line-height:1.5}.dialog-close{position:absolute;top:10px;right:12px;width:30px;height:30px;border:0;background:#eee;font-size:21px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.course-preview{display:grid;grid-template-columns:repeat(4,1fr);gap:25px;margin-top:19px}.preview-course{display:flex;min-height:320px;flex-direction:column;justify-content:flex-end;align-items:flex-start;padding:44px 35px;color:#fff;text-align:left;border:0;border-radius:0;background:#1925f4}.preview-course:hover{background:#2935ff}.preview-course span{font-size:25px;font-weight:600;letter-spacing:-1.5px}.preview-course small{font-size:18px}.go-footer{display:flex;align-items:end;gap:14px;max-width:none;margin:230px 0 0;padding:0 28px 22px;color:#a6a6a6;font-size:14px}.go-footer>span{position:absolute;transform:translateY(-35px);font-size:17px;font-weight:600}.go-footer strong{padding:7px 40px;color:#fff;background:#ce0000;font-size:16px}.go-footer p{margin:0}.tips-dialog{width:min(92vw,420px);padding:28px;border:0;border-radius:0;box-shadow:0 20px 60px #0005}.tips-dialog::backdrop{background:#0008}.tips-dialog h2{margin:0;font-size:27px}.tips-dialog ul{line-height:1.5}.dialog-close{position:absolute;top:10px;right:12px;width:30px;height:30px;border:0;background:#eee;font-size:21px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:1000px){.hero-grid{grid-template-columns:1fr 1fr}.support-card{grid-column:span 2}.course-preview{grid-template-columns:repeat(2,1fr)}.go-header,.go-main{max-width:calc(100% - 40px)}.brand-title{font-size:20px}.go-footer{margin-top:100px}}@media(max-width:690px){.go-header{padding:19px 0}.go-header,.go-main{max-width:calc(100% - 28px)}.go-brand .go-logo{height:28px}.brand-title{font-size:16px}.header-actions{gap:6px}.nav-icon{width:34px;height:34px;font-size:22px}.hero-grid,.workspace{grid-template-columns:1fr}.support-card{grid-column:auto}.welcome-card{padding:30px 25px}.welcome-card h1{font-size:36px}.school-card{min-height:170px;padding-top:87px}.school-card span{top:85px}.course-list{grid-template-columns:1fr 1fr}.course-preview{grid-template-columns:1fr;gap:10px}.preview-course{min-height:150px;padding:26px}.chat-panel{min-height:500px}.gate{padding:15px}.gate-card{padding:29px 24px}.gate h1{font-size:35px}.go-footer{display:block;margin-top:70px;padding:0 16px 20px;font-size:11px}.go-footer>span{position:static;display:block;transform:none;margin-bottom:8px}.go-footer strong{display:inline-block;padding:6px 10px;font-size:12px}.go-footer p{margin-top:10px}}@media(max-width:420px){.brand-divider,.brand-title{display:none}.nav-icon:nth-child(2),.nav-icon:nth-child(3){display:none}.course-list{grid-template-columns:1fr}.code-row{flex-direction:column}.code-row button{width:100%}.week{gap:7px}.week span{flex:1}.message{max-width:88%}}