:root{--at-bg:#101518;--at-panel:#181f23;--at-panel-alt:#1c2529;--at-border:#303b41;--at-text:#eef3f5;--at-muted:#a4b0b8;--at-accent:#83dfbb;--at-ink:#10271e;color-scheme:dark}
.at-page,.at-linux-pane{font-family:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--at-text);background:var(--at-bg);width:100%;height:100%;overflow:auto;font-size:15px;line-height:1.55}.at-page *,.at-linux-pane *{box-sizing:border-box}.at-page button,.at-page input,.at-linux-pane button{font:inherit}.at-page button,.at-page a,.at-linux-pane button{touch-action:manipulation}.at-page button:focus-visible,.at-page a:focus-visible,.at-linux-pane button:focus-visible{outline:2px solid var(--at-accent);outline-offset:4px}.at-page button:disabled{opacity:.55;cursor:wait}.at-page a{color:inherit}.at-header{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:76px;padding:18px max(24px,env(safe-area-inset-right)) 18px max(24px,env(safe-area-inset-left));border-bottom:1px solid var(--at-border);background:var(--at-bg);flex-shrink:0}.at-brand{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:700;letter-spacing:-.6px}.at-header-title{font-size:13px;font-weight:400;color:var(--at-muted);border-left:1px solid var(--at-border);padding-left:14px;margin-left:5px;letter-spacing:0}.at-header-actions{display:flex;align-items:center;gap:12px}.at-account{display:flex;align-items:center;gap:8px;border:0;background:none;padding:10px 0;color:var(--at-muted);font-size:12px!important;cursor:pointer;white-space:nowrap}.at-status-dot{width:6px;height:6px;background:#b8a16f;border-radius:50%}.at-status-dot.is-saved{background:var(--at-accent)}.at-icon-button{display:grid;place-items:center;background:none;border:1px solid var(--at-border);color:var(--at-text);border-radius:9px;width:40px;height:40px;cursor:pointer}.at-main{max-width:1080px;margin:auto;padding:36px 28px 35px}.at-page-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:27px}.at-eyebrow{color:var(--at-muted);font-size:11px;letter-spacing:1.2px;font-weight:600;text-transform:uppercase;margin:0 0 10px}.at-page h1{font-size:32px;line-height:1.2;letter-spacing:-1.15px;font-weight:650;margin:0}.at-page h2{font-size:20px;line-height:1.3;letter-spacing:-.45px;font-weight:600;margin:0}.at-page p{margin:0 0 15px}.at-course-switch{display:flex;align-items:center;gap:9px;flex-shrink:0;padding:11px 14px;background:var(--at-panel);border:1px solid var(--at-border);border-radius:9px;color:var(--at-text);font-size:13px!important;cursor:pointer}.at-course-switch span{margin-left:12px;color:var(--at-muted)}.at-primary-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:20px}.at-focus-card,.at-progress-card{border:1px solid var(--at-border);border-radius:14px;padding:27px;background:var(--at-panel)}.at-focus-card{background:#1b2c27;border-color:#385247;display:flex;flex-direction:column;align-items:flex-start;min-height:276px}.at-card-top{display:flex;justify-content:space-between;align-items:center;gap:14px;width:100%;margin-bottom:24px}.at-card-top .at-eyebrow{margin:0;color:#b2d6c6}.at-duration{display:flex;align-items:center;gap:6px;color:#a8beb5;font-size:11px;white-space:nowrap}.at-duration svg{width:14px;height:14px}.at-focus-card h2{font-size:25px;letter-spacing:-.65px;max-width:390px;margin:0 0 12px}.at-focus-card>p{font-size:14px;color:#b9ccc3;line-height:1.7;max-width:420px;flex:1}.at-primary-button,.at-secondary-button{display:inline-flex;align-items:center;justify-content:center;gap:24px;min-height:46px;border-radius:9px;padding:11px 17px;text-decoration:none;font-size:13px!important;font-weight:650!important;cursor:pointer}.at-primary-button{background:var(--at-accent);border:1px solid var(--at-accent);color:var(--at-ink)}.at-secondary-button{background:transparent;color:var(--at-text);border:1px solid #50605f}.at-primary-button:hover{background:#a1edce}.at-secondary-button:hover{background:#27332f}.at-focus-card>small{font-size:11px;color:#a7bcb2;margin-top:13px}.at-progress-card>.at-card-top{margin-bottom:21px}.at-progress-card h2{font-size:15px}.at-text-button{background:none;border:0;color:var(--at-accent);padding:6px 0;font-size:12px!important;cursor:pointer}.at-big-number{font-variant-numeric:tabular-nums;font-size:45px;font-weight:600;letter-spacing:-1.6px;line-height:1.1}.at-big-number span{font-size:21px;font-weight:400;color:var(--at-muted);letter-spacing:-.5px}.at-muted{color:var(--at-muted);font-size:13px}.at-progress-card>.at-muted{font-size:12px;margin:7px 0 16px}.at-progress-track{height:5px;border-radius:5px;background:#303c42;overflow:hidden}.at-progress-track>span{display:block;height:100%;background:var(--at-accent);border-radius:5px}.at-stat-row{display:flex;gap:50px;margin:24px 0 14px}.at-stat-row strong{font-size:20px;line-height:1.3;font-weight:600;font-variant-numeric:tabular-nums}.at-stat-row small{display:block;color:var(--at-muted);font-size:11px;margin-top:3px}.at-note{font-size:10px;color:#8f9da7}.at-section{margin-top:31px}.at-section-heading{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:17px}.at-section-heading h2{font-size:17px}.at-tools{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.at-tool{display:flex;align-items:flex-start;gap:13px;text-align:left;min-width:0;padding:21px 17px;border:1px solid var(--at-border);border-radius:12px;background:var(--at-panel);color:var(--at-text);cursor:pointer}.at-tool>svg{color:#9eb4b0;flex-shrink:0;margin-top:2px}.at-tool>svg:last-child{width:16px;height:16px;align-self:center;margin-left:auto}.at-tool strong{display:block;font-size:13px;font-weight:600;white-space:normal}.at-tool span{display:block;font-size:11px;line-height:1.65;color:var(--at-muted);margin-top:5px}.at-tool:hover{border-color:#657f73}.at-split{display:grid;grid-template-columns:1fr 1fr;gap:20px}.at-library-card,.at-game-card{padding:25px;border:1px solid var(--at-border);border-radius:13px;background:var(--at-panel)}.at-split h2{margin-bottom:11px}.at-split .at-muted{margin-bottom:19px;max-width:350px;line-height:1.7}.at-game-links{display:flex;gap:25px}.at-game-links a{display:flex;align-items:center;gap:18px;font-size:13px;color:var(--at-accent);text-decoration:none}.at-game-links svg{width:16px;height:16px}.at-footer-note{color:#7e9097;font-size:11px;text-align:center;margin:29px 0 0!important}.at-saved-exam{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px;border:1px solid var(--at-border);border-radius:12px;margin-top:20px}.at-saved-exam strong{font-size:14px}.at-saved-exam p{font-size:12px;color:var(--at-muted);margin:6px 0 0}.at-welcome{max-width:1050px;padding-top:65px}.at-welcome-top{max-width:750px}.at-welcome h1{font-size:52px;letter-spacing:-2px;line-height:1.12;max-width:650px}.at-welcome-copy{font-size:16px;color:var(--at-muted);max-width:570px;margin:23px 0!important;line-height:1.8}.at-welcome-actions{display:flex;gap:13px;flex-wrap:wrap}.at-welcome-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:55px;border-top:1px solid var(--at-border);padding-top:30px}.at-welcome-grid article{padding:0 15px 0 0}.at-welcome-grid svg{color:var(--at-accent);margin-bottom:14px}.at-welcome-grid h2{font-size:15px;margin-bottom:8px}.at-welcome-grid p{font-size:12px;color:var(--at-muted);line-height:1.75}.at-welcome-game{margin-top:35px;border:1px solid var(--at-border);border-radius:13px;display:flex;justify-content:space-between;align-items:center;gap:25px;padding:27px;background:var(--at-panel)}.at-welcome-game .at-muted{margin:12px 0 0;max-width:540px}.at-welcome-game>a{flex-shrink:0}.at-dialog-backdrop{position:fixed;inset:0;background:#0009;backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;padding:20px;z-index:8000}.at-course-dialog{width:100%;max-width:620px;max-height:85dvh;display:flex;flex-direction:column;background:var(--at-panel);border:1px solid #45544e;border-radius:15px;padding:24px;box-shadow:0 20px 70px #0008}.at-course-dialog input{flex-shrink:0;padding:13px 15px;border:1px solid #45544e;border-radius:9px;background:var(--at-bg);color:var(--at-text);font-size:16px;margin:0 0 15px;width:100%;outline-color:var(--at-accent)}.at-course-list{overflow:auto;min-height:0}.at-course-option{display:flex;justify-content:space-between;align-items:center;gap:20px;text-align:left;width:100%;padding:18px 12px;background:transparent;border:0;border-top:1px solid var(--at-border);color:var(--at-text);cursor:pointer;border-radius:3px}.at-course-option.is-current{background:#20352d}.at-course-option strong{display:block;font-size:14px;font-weight:600}.at-course-option small{display:block;font-size:11px;color:var(--at-muted);margin-top:4px}.at-course-meta{text-align:right;flex-shrink:0;font-size:11px;color:var(--at-accent)}.at-empty{padding:25px 5px;color:var(--at-muted);font-size:13px}.at-linux-pane{display:flex;flex-direction:column;overflow:hidden}.at-linux-content{flex:1;min-height:0;width:100%;border:0;background:var(--at-bg)}.at-linux-toolbar{padding:10px 24px;display:flex;justify-content:space-between;align-items:center;gap:12px;border-bottom:1px solid var(--at-border);color:var(--at-muted);font-size:12px}.at-brand-home{border:0;background:transparent;color:var(--at-text);font-weight:700!important;font-size:21px!important;letter-spacing:-.6px;padding:0;cursor:pointer}
/* The account control lives in authored headers; the compact badge remains on legacy study screens. */
body:has(.at-header) #aptrek-cloud-badge{display:none}
@media(max-width:760px){.at-header{min-height:65px;padding:14px 18px}.at-brand{font-size:19px}.at-header-actions{gap:9px}.at-header-title{display:none}.at-account{font-size:10px!important;gap:6px}.at-main{padding:26px 18px 26px}.at-page-heading{display:block;margin-bottom:22px}.at-page h1{font-size:27px;letter-spacing:-.9px}.at-course-switch{margin-top:17px;padding:9px 12px}.at-primary-grid{grid-template-columns:1fr;gap:15px}.at-focus-card,.at-progress-card{padding:23px}.at-focus-card{min-height:260px}.at-focus-card h2{font-size:24px;max-width:300px}.at-tools{grid-template-columns:1fr;gap:9px}.at-tool{padding:17px;align-items:center}.at-tool span{margin-top:2px}.at-section{margin-top:25px}.at-split{grid-template-columns:1fr;gap:14px}.at-library-card,.at-game-card{padding:22px}.at-stat-row{gap:60px}.at-welcome{padding-top:34px}.at-welcome h1{font-size:39px;letter-spacing:-1.5px}.at-welcome-copy{font-size:14px;margin:20px 0!important}.at-welcome-grid{grid-template-columns:1fr;gap:23px;margin-top:34px;padding-top:25px}.at-welcome-grid article{display:grid;grid-template-columns:26px 1fr;column-gap:12px;padding:0}.at-welcome-grid svg{grid-row:span 2}.at-welcome-grid h2{margin:0 0 5px}.at-welcome-grid p{margin:0}.at-welcome-game{display:block;margin-top:27px;padding:22px}.at-welcome-game>a{margin-top:21px}.at-dialog-backdrop{align-items:flex-end;padding:12px}.at-course-dialog{max-height:88dvh;padding:20px}.at-course-option{padding:16px 8px}.at-course-option strong{font-size:13px}.at-course-meta{font-size:10px}.at-course-option small{font-size:10px}.at-saved-exam{display:block}.at-saved-exam button{margin-top:15px}.at-linux-toolbar{padding:8px 18px}.at-game-links{gap:25px}.at-focus-card>.at-primary-button{width:100%;justify-content:space-between}}
@media(prefers-reduced-motion:reduce){.at-page *{scroll-behavior:auto!important;animation:none!important}}
.at-launch{display:flex;flex:1;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:#101518;color:#eef3f5;font:16px system-ui}.at-launch strong{font-size:24px;letter-spacing:-.6px}.at-launch p{font-size:12px;color:#a4b0b8}.at-week-summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 17px;margin:0 0 20px;border:1px solid var(--at-border);border-radius:10px;background:var(--at-panel)}.at-week-summary strong{display:block;font-size:14px;font-weight:600}.at-week-summary small{display:block;color:var(--at-muted);font-size:11px;margin-top:3px}.at-week-summary>span{font-size:12px;color:var(--at-accent)}.at-page[data-theme=light],.at-linux-pane[data-theme=light]{--at-bg:#f6f7f8;--at-panel:#fff;--at-panel-alt:#f2f5f4;--at-border:#dce3df;--at-text:#172421;--at-muted:#61726b;--at-accent:#16754e;--at-ink:#fff;color-scheme:light}.at-page[data-theme=light] .at-focus-card{background:#e7f3ec;border-color:#bed5c8}.at-page[data-theme=light] .at-focus-card p,.at-page[data-theme=light] .at-focus-card small,.at-page[data-theme=light] .at-duration,.at-page[data-theme=light] .at-focus-card .at-eyebrow{color:#486454}.at-page[data-theme=light] .at-primary-button{background:#16754e;color:#fff}.at-page[data-theme=light] .at-course-dialog{background:#fff}.at-page[data-theme=light] .at-course-option.is-current{background:#e5f2eb}

.at-week-summary>span{white-space:nowrap;min-width:68px;text-align:right}