@import "https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;550;600;650;700&family=Manrope:wght@400;500;600;650;700;750;800&display=swap";
:root{--navy:#162d3d;--navy-deep:#112532;--orange:#d76a3c;--orange-light:#faf0e9;--bg:#f6f7f9;--ink:#203643;--muted:#75818b;--border:#e4e8eb;--green:#27745a;--white:#fff}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;font-family:DM Sans,Arial,sans-serif;font-size:14px}button,input,textarea,select{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.55}a{color:inherit;text-decoration:none}button{color:inherit}button:focus-visible,a:focus-visible{outline-offset:3px;outline:3px solid #e8a77c}h1,h2,h3,h4,p{margin-top:0}h1,h2,h3{font-family:Manrope,Arial,sans-serif}input,select,textarea{min-width:0;color:var(--ink);background:#fff;border:1px solid #dce2e6;border-radius:7px;outline:none;padding:10px 12px}input:focus,select:focus,textarea:focus{border-color:var(--orange);box-shadow:0 0 0 3px #d76a3c13}textarea{resize:vertical;line-height:1.6}label{flex-direction:column;gap:8px;font-size:12px;font-weight:600;display:flex}small{font-size:11px}code{background:#eef1f3;border-radius:3px;padding:2px 5px;font-family:Consolas,monospace;font-size:12px}button{background:0 0;border:0}svg{flex-shrink:0}::selection{background:#f1cfb8}.app-shell{min-height:100vh;display:flex}.sidebar{background:var(--navy-deep);color:#b7c4cd;z-index:20;flex-direction:column;width:246px;padding:34px 20px 0;display:flex;position:fixed;inset:0 auto 0 0}.brand{color:#fff;letter-spacing:1px;align-items:center;gap:10px;margin-bottom:47px;padding:0 4px;font-family:Manrope,Arial,sans-serif;font-size:17px;font-weight:800;display:flex}.brand small{letter-spacing:1.5px;color:#b3c0c8;margin-top:4px;font-family:DM 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28px}.local-status{color:#d4dce1;align-items:center;gap:8px;font-size:11px;display:flex}.local-status>span{background:#75b89a;border-radius:50%;width:6px;height:6px;box-shadow:0 0 0 4px #75b89a13}.sidebar-bottom p{color:#8195a3;margin:20px 0;font-size:11px;line-height:1.8}.sidebar-version{color:#718694;letter-spacing:1px;border-top:1px solid #ffffff13;padding-top:20px;font-size:8px}.main-shell{flex:1;min-width:0;margin-left:246px}.topbar{border-bottom:1px solid var(--border);background:#fff;justify-content:space-between;align-items:center;gap:20px;height:78px;padding:0 42px;display:flex}.breadcrumb{color:#93a0aa;align-items:center;gap:12px;font-size:11px;display:flex}.breadcrumb strong{color:#526371;font-weight:500}.topbar-right{align-items:center;gap:17px;display:flex}.demo-tag{letter-spacing:1.1px;color:#9b795e;background:#fdf9f4;border:1px solid #efdfcf;border-radius:4px;padding:6px 8px;font-size:8px}.topbar select{box-shadow:none;background:0 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.auth-loading{background:var(--bg);min-height:100vh;color:var(--ink);place-items:center;display:grid}.auth-page{background:var(--bg);min-height:100vh;color:var(--ink);grid-template-columns:1fr 1fr;display:grid}.auth-intro{background:var(--navy);color:var(--nav-ink);flex-direction:column;justify-content:center;align-items:flex-start;padding:60px clamp(35px,7vw,120px);display:flex}.auth-brand{align-items:center;gap:14px;margin-bottom:90px;font-size:22px;display:flex}.auth-brand small{letter-spacing:2px;margin-top:7px;font-size:9px;display:block}.auth-intro .eyebrow{color:inherit;opacity:.8;font-size:11px}.auth-intro h1{margin:20px 0;font-size:clamp(30px,3vw,48px);line-height:1.3}.auth-intro p{opacity:.85;font-size:15px;line-height:1.8}.auth-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;align-self:center;width:min(460px,100% - 60px);margin:45px auto;padding:36px;box-shadow:0 12px 45px #0000000a}.auth-card>svg{color:var(--accent-text)}.auth-card h2{margin:22px 0 12px;font-size:25px}.auth-card p{color:var(--muted);font-size:13px;line-height:1.8}.auth-card form,.account-panel form{gap:18px;margin:25px 0;display:grid}.auth-card label,.account-panel label{font-size:13px}.auth-card input,.account-panel input{background:var(--surface-soft);color:var(--ink);border-color:var(--border);padding:12px;font-size:15px}.auth-card .auth-help{margin:0;font-size:11px}.auth-card small{color:var(--muted)}.account-panel{max-width:650px}.account-panel>p,.account-panel form>p{color:var(--muted);font-size:13px;line-height:1.8}.account-panel h3{margin-top:35px;font-size:17px}.signed-in-user{color:var(--ink);font-size:12px}@media (max-width:750px){.auth-page{grid-template-columns:1fr}.auth-intro{padding:30px}.auth-brand{margin-bottom:25px}.auth-intro h1{font-size:29px}.auth-intro p{margin-bottom:0}.auth-card{width:calc(100% - 32px);margin:25px auto;padding:25px}}
.app-shell{font-size:15px}.app-shell .nav-item{font-size:14px;line-height:1.5}.app-shell .nav-caption{font-size:11px;line-height:1.6}.app-shell .sidebar{overflow-y:auto}.app-shell .brand{margin-bottom:34px}.app-shell .sidebar-bottom{padding-top:18px}.app-shell :is(.local-status,.sidebar-bottom p){font-size:12px}.app-shell .sidebar-version{font-size:10px;line-height:1.6}.app-shell :is(.breadcrumb,.topbar select,.signed-in-user){font-size:13px}.app-shell .demo-tag{font-size:10px}.app-shell .eyebrow{font-size:11px;line-height:1.7}.app-shell .page-heading h1{font-size:29px;line-height:1.4}.app-shell .page-heading p{font-size:14px;line-height:1.8}.app-shell :is(.button,.text-button){font-size:13px;line-height:1.5}.app-shell .hero-kicker{font-size:10px;line-height:1.7}.app-shell .hero p{font-size:14px;line-height:1.8}.app-shell .hero-footnote{font-size:12px;line-height:1.7}.app-shell .art-stat{font-size:12px}.app-shell .art-stat small{font-size:11px}.app-shell .stat h3{font-size:13px;line-height:1.6}.app-shell .stat p{font-size:12px;line-height:1.7}.app-shell .section-title h2{font-size:22px;line-height:1.5}.app-shell .path-card h3{font-size:17px;line-height:1.5}.app-shell .path-card p{font-size:14px;line-height:1.8}.app-shell :is(.path-top small,.path-action,.bottom-note,.resume-banner p){font-size:12px;line-height:1.8}.app-shell .exercise-card h2{font-size:20px;line-height:1.5}.app-shell .exercise-card>p{font-size:14px;line-height:1.8}.app-shell :is(.exercise-meta,.source-note,.config-note){font-size:12px;line-height:1.8}.app-shell .exercise-meta{flex-wrap:wrap;gap:8px 18px}.app-shell :is(.badge,.module-number){font-size:12px}.app-shell :is(label,.check-label){font-size:14px;line-height:1.6}.app-shell :is(input,textarea,select){font-size:15px;line-height:1.5}.app-shell .exam-launch strong{font-size:15px}.app-shell .exam-launch span{font-size:13px}.app-shell .library-banner strong{font-size:15px;line-height:1.6}.app-shell :is(.library-banner p,.manual-details p){font-size:12px;line-height:1.8}.app-shell .manual-details h3{font-size:15px;line-height:1.7}.app-shell .cover-edition{font-size:9px;line-height:1.7}.app-shell .book-cover small{font-size:8px;line-height:1.7}.app-shell .history-table{font-size:13px}.app-shell .history-table th{font-size:11px;line-height:1.6}.app-shell .history-table td small{font-size:12px;line-height:1.7}.app-shell :is(.page-footer,.empty p){font-size:12px;line-height:1.8}.app-shell .empty h2{font-size:22px}.app-shell :is(.settings-section-heading h2,.compact-color-settings>summary strong,.compact-color-settings>summary h2){font-size:18px;line-height:1.5}.app-shell :is(.settings-section-heading p,.compact-color-settings>summary small,.compact-color-settings>summary p,.theme-choice>small,.color-control p,.appearance-preview-content p,.settings-save-note p,.compact-color-content>.color-visibility-note,.sim-color-preview small){font-size:12px;line-height:1.8}.app-shell :is(.theme-choice-label,.color-control strong,.appearance-preview-content strong,.palette-choice>strong,.background-color-groups h3,.sim-color-preview>span){font-size:14px;line-height:1.6}.app-shell :is(.save-indicator,.color-inputs .hex-input){font-size:13px}.app-shell .color-inputs .hex-input{width:112px}.app-shell .color-control .color-visibility-note{font-size:12px;line-height:1.8}.app-shell .modal :is(p,label,.muted,.text-button,.button){font-size:14px;line-height:1.8}.app-shell .modal :is(input,select,textarea){font-size:15px;line-height:1.6}.app-shell :is(.editor-tabs>button,.reader-note,.reader-tools,.reader-content .muted){font-size:12px;line-height:1.8}.app-shell .reader-content{font-size:16px;line-height:1.9}.auth-card :is(p,label),.account-panel :is(p,label){font-size:14px;line-height:1.8}.auth-card :is(.auth-help,small){font-size:12px;line-height:1.8}.auth-card :is(input,.button){font-size:16px}@media (max-width:850px){.app-shell .nav-item{font-size:0}.app-shell .page-heading h1{font-size:26px}.app-shell .topbar-right{flex-wrap:wrap;justify-content:flex-end;gap:8px}.app-shell .signed-in-user{text-overflow:ellipsis;white-space:nowrap;max-width:150px;overflow:hidden}}@media (max-width:600px){.app-shell .page-heading h1{font-size:24px}.app-shell .hero h2{font-size:33px}.app-shell .section-title,.app-shell .card-actions,.app-shell .exam-launch{flex-wrap:wrap}.app-shell .signed-in-user{max-width:95px;font-size:12px}.app-shell .topbar{gap:8px;height:auto;min-height:72px;padding-top:12px;padding-bottom:12px}.app-shell .breadcrumb{flex-wrap:wrap;gap:5px;font-size:12px}.app-shell .palette-choice,.app-shell .settings-card{min-width:0}}
.account-editor{width:100%;max-width:960px}.account-editor>form{min-height:0}.account-editor-content{max-height:65vh;padding:24px 30px;overflow:auto}.account-active{align-self:end;align-items:center;padding:12px 0;flex-direction:row!important}.account-active input,.module-permissions input[type=checkbox]{width:19px;height:19px;accent-color:var(--orange)}.module-permissions-heading{justify-content:space-between;align-items:center;gap:18px;margin-top:28px;display:flex}.module-permissions-heading h3{margin:0 0 8px;font-size:17px}.module-permissions-heading p,.account-scope-note{color:var(--muted);font-size:13px;line-height:1.8}.account-scope-note{margin:20px 0 0}.module-permissions td:not(:first-child),.module-permissions th:not(:first-child){text-align:center}.module-permissions .history-table th{white-space:normal;letter-spacing:0;text-transform:none}.protected-account{color:var(--muted);align-items:center;gap:7px;font-size:12px;display:inline-flex}.credential-receipt{max-width:560px;padding:30px}.credential-receipt h2{margin:18px 0}.credential-receipt p{color:var(--muted);line-height:1.8}.credential-receipt label{margin:20px 0}.credential-receipt input{background:var(--surface-soft);width:100%;color:var(--ink);font-family:Consolas,monospace;font-size:15px!important}.credential-receipt .confirm-actions{margin-top:25px}.account-management>.library-banner{flex-wrap:wrap}.account-management>.library-banner>div{flex:1;min-width:180px}@media (max-width:600px){.account-editor-content{max-height:60vh;padding:20px}.module-permissions-heading{flex-direction:column;align-items:flex-start}.module-permissions .history-table td,.module-permissions .history-table th{padding:12px 10px}.module-permissions .history-table td:first-child{min-width:150px}.credential-receipt{padding:22px}}.module-permissions{max-height:360px;margin-top:14px}.module-permissions .history-table{min-width:560px}.module-permissions .history-table th{z-index:1;background:var(--surface-soft);position:sticky;top:0}.account-management .account-delete-button{color:#b54b3c}.danger-button{color:#fff!important;background:#a5372c!important;border-color:#a5372c!important}
.module-browser-note{color:var(--page-muted,var(--muted));max-width:530px;margin:0;font-size:13px;line-height:1.8}.module-navigation{margin:22px 0 28px}.module-tabs{background:var(--surface);border:1px solid var(--border);border-radius:9px;flex-wrap:wrap;gap:8px;padding:12px;display:flex}.module-tabs>button{border:1px solid var(--border);background:var(--surface-soft);color:var(--ink);text-align:left;border-radius:6px;align-items:center;gap:9px;min-height:44px;padding:12px 14px;font-size:13px;line-height:1.5;display:flex}.module-tabs>button.active{background:var(--navy);border-color:var(--navy);color:var(--nav-ink)}.module-tabs small{background:color-mix(in srgb,currentColor 10%,transparent);border-radius:4px;padding:1px 6px;font-size:11px}.module-selected-count{align-items:center;gap:3px;font-size:12px;font-weight:700;display:inline-flex}.module-section-heading{justify-content:space-between;align-items:center;gap:20px;margin:22px 0;display:flex}.module-section-heading h2{color:var(--page-ink,var(--ink));margin:7px 0;font-size:24px;line-height:1.5}.module-section-heading p{color:var(--page-muted,var(--muted));margin:0;font-size:13px;line-height:1.7}.module-empty{padding:45px 25px}.module-empty h3{color:var(--ink);margin:0;font-size:18px;line-height:1.5}.cross-module-selection{background:var(--surface);border:1px solid var(--border);color:var(--ink);border-radius:8px;margin-top:25px;padding:22px}.selection-heading{justify-content:space-between;align-items:center;gap:18px;display:flex}.selection-heading strong{font-size:15px}.selection-heading p{color:var(--muted);margin:8px 0 0;font-size:13px;line-height:1.8}.selected-exercises{border-top:1px solid var(--border);margin-top:18px;padding-top:16px}.selected-exercises>summary{cursor:pointer;font-size:13px;font-weight:600;line-height:1.8}.selected-exercises h3{margin:20px 0 8px;font-size:14px}.selected-exercise{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:12px;padding:8px 0;font-size:13px;line-height:1.7;display:flex}.exercise-browser [role=tabpanel]{outline-offset:5px}@media (max-width:600px){.module-tabs{scrollbar-width:thin;flex-wrap:nowrap;padding:9px;display:flex;overflow-x:auto}.module-tabs>button{flex-shrink:0;max-width:230px;padding:11px}.module-section-heading{flex-direction:column;align-items:stretch}.module-section-heading .search{width:100%}.module-section-heading h2{font-size:22px}.selection-heading{flex-direction:column;align-items:flex-start}.cross-module-selection{padding:18px}}