:root{
  color-scheme:dark;
  --bg:#171717;--sidebar:#1d1d1d;--panel:#222;--panel-2:#282828;--panel-3:#303030;
  --border:#444;--border-soft:#343434;--text:#e4e4e4;--muted:#aaa;--dim:#777;
  --accent:#efefef;--accent-text:#181818;--good:#a9d1b2;--good-bg:#223029;
  --warn:#e1c68e;--warn-bg:#332d20;--danger:#e6a1a1;--shadow:rgba(0,0,0,.22)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.5}
button,input,textarea,select{font:inherit}
button,a{transition:.15s ease}
a{color:inherit;text-underline-offset:3px}
button{border:1px solid var(--border);border-radius:8px;background:var(--panel-2);color:var(--text);padding:9px 12px;cursor:pointer}
button:hover{background:var(--panel-3);border-color:#606060}
button:disabled{cursor:not-allowed;opacity:.4}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(1.55rem,3vw,2.15rem);line-height:1.15;margin-bottom:6px}
h2{font-size:1.2rem}
h3{font-size:1rem}
.muted{color:var(--muted)}.dim{color:var(--dim)}.small{font-size:.88rem}.tiny{font-size:.76rem}
.eyebrow{font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:700}
.good{color:var(--good)}.warn{color:var(--warn)}
.app-shell{display:grid;grid-template-columns:230px minmax(0,1fr);min-height:100vh}
.sidebar{background:var(--sidebar);border-right:1px solid var(--border-soft);padding:22px 14px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column}
.brand{font-weight:800;letter-spacing:.08em;padding:0 10px;margin-bottom:24px}
.brand span{display:block;color:var(--muted);font-size:.7rem;letter-spacing:.04em;font-weight:500;margin-top:3px}
.nav{display:grid;gap:4px}
.nav-button{width:100%;display:flex;align-items:center;gap:10px;text-align:left;background:transparent;border-color:transparent;color:var(--muted);padding:10px}
.nav-button:hover{background:var(--panel-2);color:var(--text);border-color:transparent}
.nav-button.active{background:var(--panel-2);color:var(--text);font-weight:700}
.nav-icon{width:20px;text-align:center}
.sidebar-bottom{margin-top:auto;padding:18px 10px 0;border-top:1px solid var(--border-soft)}
.progress-line{display:flex;justify-content:space-between;gap:8px}
.progress-track{height:7px;background:#111;border-radius:999px;overflow:hidden;margin:9px 0 15px}
.progress-fill{height:100%;width:0;background:var(--accent);border-radius:inherit;transition:width .25s}
.settings-button{width:100%;background:transparent;text-align:left}
.workspace{min-width:0;padding:28px 34px 50px;max-width:1240px;width:100%;margin:0 auto}
.mobile-topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
.view{display:none}.view.active{display:block}
.page-header{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:22px}
.page-header p{margin-bottom:0}.header-actions{display:flex;gap:8px;flex-wrap:wrap}
.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:20px;box-shadow:0 8px 28px var(--shadow)}
.card+.card{margin-top:16px}.focus-card{padding:24px}
.focus-meta{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:12px;flex-wrap:wrap}
.status-badge{display:inline-flex;align-items:center;border:1px solid var(--border);border-radius:999px;padding:5px 9px;color:var(--muted);background:var(--panel-2);font-size:.8rem}
.focus-task{font-size:clamp(1.18rem,2.4vw,1.65rem);max-width:850px;line-height:1.35;margin-bottom:10px}
.week-outcome{border-left:3px solid #777;background:var(--panel-2);border-radius:6px;padding:11px 13px;margin:18px 0}
.button-row{display:flex;gap:9px;flex-wrap:wrap;align-items:center}
.primary{background:var(--accent);color:var(--accent-text);border-color:var(--accent);font-weight:750}
.primary:hover{background:#fff;border-color:#fff}.complete-button.done{background:var(--good-bg);color:var(--good);border-color:#466a50}
.ghost{background:transparent}.danger{color:var(--danger)}.danger:hover{background:#3b2525;border-color:#6b3e3e}
.today-grid{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:16px;margin-top:16px}
.daily-column{display:grid;gap:16px}.step-card{position:relative;padding-left:72px}
.step-number{position:absolute;left:20px;top:20px;width:34px;height:34px;border:1px solid var(--border);border-radius:50%;display:grid;place-items:center;font-weight:800;background:var(--panel-2)}
.step-title{display:flex;align-items:center;gap:9px;margin-bottom:8px}.step-title h2{margin-bottom:0}
.time-chip{font-size:.74rem;color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:3px 7px}
.resource-links{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.resource-link{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);background:var(--panel-2);border-radius:8px;padding:8px 10px;text-decoration:none;font-size:.88rem}
.resource-link:hover{background:var(--panel-3);border-color:#666}
.course-route{margin:16px 0 14px;padding:14px;border:1px solid var(--border);border-radius:10px;background:#1b1b1b}.course-route-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:8px}.course-name{font-weight:800;font-size:1.03rem}.course-lesson{margin:3px 0 6px;color:var(--good);font-weight:650}.course-route p{margin-bottom:11px}.course-route .resource-link{padding:7px 9px}.course-route-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.reference-note{margin:0}
.practice-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin:4px 0 10px}.practice-heading h3{font-size:1.15rem;margin:3px 0 0}.practice-scenario{color:var(--muted);margin-bottom:16px}
.practice-section{border-top:1px solid var(--border-soft);padding:13px 0}.practice-section summary{cursor:pointer;font-weight:750;list-style-position:outside;margin-left:16px}.practice-section-body{margin:12px 0 0}.static-section h3{margin-bottom:8px}.starter-data{white-space:pre-wrap;overflow:auto;background:#181818;border:1px dashed #555;border-radius:8px;padding:13px;margin:0;color:#d8d8d8;font-family:"SFMono-Regular",Consolas,monospace;font-size:.84rem}.copy-button{margin-top:9px;padding:7px 9px;font-size:.8rem}.module-list{margin:6px 0 0;padding-left:22px}.module-list li{padding:3px 0}.practice-pair{display:grid;grid-template-columns:1fr 1fr;gap:18px;border-top:1px solid var(--border-soft)}.practice-pair .practice-section{border-top:0}.evidence-callout{background:var(--panel-2);border-left:3px solid #777;border-radius:6px;padding:11px 13px;margin:2px 0 10px}.hint-section summary{color:var(--warn)}.transfer-section summary{color:var(--good)}
.proof-list{display:grid;gap:9px;margin-top:13px}.check-row{display:flex;align-items:flex-start;gap:9px}.check-row input{margin-top:4px;accent-color:#ddd}
.reflect-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.field{display:grid;gap:7px}.field.full{grid-column:1/-1}.field label{font-weight:650;font-size:.88rem}
.field textarea,.field select,.field input[type="date"],.field input[type="password"],.field input[type="text"]{width:100%;border:1px solid #555;border-radius:8px;background:#181818;color:var(--text);padding:10px}
.field textarea{min-height:88px;resize:vertical}.field textarea:focus,.field select:focus,.field input:focus{border-color:#888}
.save-note{text-align:right;color:var(--dim);font-size:.75rem;margin-top:8px}
.review-readiness{border:1px solid var(--border-soft);background:#1b1b1b;border-radius:9px;padding:11px 13px;margin:14px 0;color:var(--muted);font-size:.88rem}
.review-readiness.ready{border-color:#466a50;background:var(--good-bg);color:var(--good)}
.grade-result{margin-top:16px;border-top:1px solid var(--border-soft);padding-top:16px}.grade-result[hidden]{display:none}
.grade-summary{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:center;margin-bottom:14px}.grade-score{width:74px;height:74px;border-radius:50%;display:grid;place-items:center;border:2px solid #777;background:#181818;font-size:1.35rem;font-weight:800}.grade-score.passing{border-color:#5f8969;color:var(--good)}.grade-score.needs-work{border-color:#8c7445;color:var(--warn)}
.grade-verdict{font-weight:800;text-transform:capitalize;margin-bottom:3px}.grade-columns{display:grid;grid-template-columns:1fr 1fr;gap:12px}.grade-block{background:#1b1b1b;border:1px solid var(--border-soft);border-radius:9px;padding:12px}.grade-block h3{margin-bottom:7px}.grade-block ul{margin:0;padding-left:19px}.grade-block li+li{margin-top:5px}.rubric-list{display:grid;gap:8px;margin-top:12px}.rubric-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:5px 12px;padding:9px 0;border-bottom:1px solid var(--border-soft)}.rubric-row:last-child{border-bottom:0}.rubric-feedback{grid-column:1/-1;color:var(--muted);font-size:.84rem}.next-step{margin-top:12px;border-left:3px solid #777;background:var(--panel-2);border-radius:6px;padding:11px 13px}
.cloud-actions{margin-top:10px}
.week-panel{align-self:start;position:sticky;top:20px}.week-days{display:grid;gap:7px;margin:15px 0}
.week-day{display:grid;grid-template-columns:30px 1fr auto;align-items:center;gap:8px;width:100%;background:transparent;border-color:transparent;padding:7px;color:var(--muted);text-align:left}
.week-day:hover{background:var(--panel-2);border-color:transparent}.week-day.current{background:var(--panel-2);color:var(--text)}
.day-dot{width:27px;height:27px;border:1px solid var(--border);border-radius:50%;display:grid;place-items:center;font-size:.78rem}
.week-day.done .day-dot{background:var(--good-bg);color:var(--good);border-color:#466a50}.week-day.current .day-dot{background:var(--accent);color:var(--accent-text);border-color:var(--accent)}
.milestone-box{border-top:1px solid var(--border-soft);padding-top:14px;margin-top:12px}.week-nav{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:15px}.week-nav button{padding:8px}
.roadmap-list{display:grid;gap:12px}.week-card{background:var(--panel);border:1px solid var(--border);border-radius:11px;overflow:hidden}
.week-card summary{cursor:pointer;padding:16px 18px;list-style:none;display:flex;justify-content:space-between;gap:14px;align-items:center}.week-card summary::-webkit-details-marker{display:none}.week-card[open] summary{border-bottom:1px solid var(--border-soft)}
.week-summary-title{font-weight:750}.week-summary-meta{color:var(--muted);font-size:.82rem}.week-chevron{color:var(--muted)}.week-card[open] .week-chevron{transform:rotate(90deg)}
.roadmap-days{padding:7px 18px 14px}.roadmap-day{display:grid;grid-template-columns:28px minmax(0,1fr) auto;gap:10px;align-items:start;padding:12px 0;border-bottom:1px solid var(--border-soft)}
.roadmap-day:last-child{border-bottom:0}.roadmap-day input{margin-top:5px;accent-color:#ddd}.roadmap-day.done .roadmap-task{text-decoration:line-through;color:var(--dim)}
.open-day{padding:6px 9px;background:transparent;font-size:.8rem}.milestone-banner{padding:12px 14px;background:var(--panel-2);border-radius:8px;margin:8px 0 6px}
.stats-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:16px}.stat{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:15px}.stat-value{font-size:1.35rem;font-weight:750}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}.milestone-list,.review-list{display:grid;gap:10px}
.milestone-row{display:flex;gap:9px;align-items:flex-start;padding:10px 0;border-bottom:1px solid var(--border-soft)}.milestone-row:last-child{border-bottom:0}
.review-card textarea{width:100%;min-height:120px;resize:vertical;margin-top:10px;border:1px solid #555;border-radius:8px;background:#181818;color:var(--text);padding:10px}
.architecture{white-space:pre-wrap;background:#181818;border:1px solid var(--border);border-radius:8px;padding:14px;font-family:"SFMono-Regular",Consolas,monospace;color:#ccc;overflow:auto}
.accordion{background:var(--panel);border:1px solid var(--border);border-radius:11px;margin-bottom:12px}.accordion summary{cursor:pointer;padding:16px 18px;font-weight:750}.accordion-body{padding:0 18px 18px}
.resource-item{padding:12px 0;border-bottom:1px solid var(--border-soft)}.resource-item:last-child{border-bottom:0}.rules-list{display:grid;gap:9px}.exam-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px 18px}
dialog{width:min(560px,calc(100% - 28px));border:1px solid var(--border);border-radius:12px;background:var(--panel);color:var(--text);padding:0;box-shadow:0 24px 80px rgba(0,0,0,.55)}
dialog::backdrop{background:rgba(0,0,0,.72)}.dialog-head{display:flex;justify-content:space-between;align-items:center;padding:17px 19px;border-bottom:1px solid var(--border-soft)}.dialog-head h2{margin:0}.dialog-body{padding:19px}.dialog-section{padding:15px 0;border-bottom:1px solid var(--border-soft)}.dialog-section:first-child{padding-top:0}.dialog-section:last-child{border-bottom:0;padding-bottom:0}.close-button{padding:6px 10px}.hidden-file{display:none}
@media(max-width:900px){.today-grid{grid-template-columns:1fr}.week-panel{position:static}.stats-grid{grid-template-columns:1fr 1fr}.two-col{grid-template-columns:1fr}}
@media(max-width:720px){.app-shell{grid-template-columns:1fr}.sidebar{position:sticky;top:0;z-index:20;width:100%;height:auto;padding:9px 10px;border-right:0;border-bottom:1px solid var(--border);display:block}.brand,.sidebar-bottom{display:none}.nav{display:grid;grid-template-columns:repeat(5,1fr);gap:3px}.nav-button{justify-content:center;padding:8px 4px;font-size:.72rem;display:grid;gap:1px;text-align:center}.nav-icon{width:auto}.workspace{padding:20px 14px 42px}.mobile-topbar{margin-bottom:18px}.page-header{display:block}.header-actions{margin-top:12px}.reflect-grid,.exam-grid,.practice-pair,.grade-columns{grid-template-columns:1fr}.field.full{grid-column:auto}.step-card{padding:18px}.step-number{position:static;margin-bottom:10px}.practice-heading{display:block}.practice-heading .status-badge{margin-top:8px}.roadmap-day{grid-template-columns:26px 1fr}.roadmap-day .open-day{grid-column:2;width:max-content}.stats-grid{grid-template-columns:1fr}.focus-card{padding:19px}}
@media(min-width:721px){.settings-button-mobile{display:none}}
@media print{.sidebar,.mobile-topbar,.header-actions,.button-row,.week-nav,.open-day{display:none!important}.app-shell{display:block}.workspace{max-width:none;padding:0}.view{display:block!important}.card,.week-card,.accordion{box-shadow:none;break-inside:avoid}}