@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap";
:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#07080c;--surface:var(--bg);--card:#12151ca8;--card-solid:#11141b;--soft:#ffffff0a;--hover:#ffffff0f;--line:#ffffff14;--line-strong:#ffffff26;--field:#0b0d12;--field-border:#ffffff2b;--navy:#f8fafc;--ink:#e6e9ef;--muted:#a3aab7;--subtle:#8a92a1;--blue:#8ab4ff;--primary:#3d6ef0;--primary-2:#2a55d6;--primary-top:#3c6cec;--on-primary:#fff;--accent-soft:#5b8cff1f;--accent-line:#5b8cff4d;--accent-text:#adc8ff;--focus:#7aa7ff;--violet:#a78bfa;--cyan:#22d3ee;--green:#4ade80;--on-green:#052e16;--success-soft:#4ade801a;--success-line:#4ade8040;--success-text:#bbf0cf;--warning-soft:#fbbf2414;--warning-line:#fbbf2447;--warning-text:#fcd34d;--danger:#ff8a8a;--danger-soft:#ff8a8a1a;--code-bg:#05070a;--code-ink:#d5deea;--code-border:#ffffff14;--code-btn:#ffffff0d;--code-btn-line:#ffffff24;--code-btn-hover:#ffffff1f;--hero-bg:radial-gradient(70% 90% at 0% 0%,#3d6ef05c,transparent 60%),radial-gradient(60% 80% at 100% 0%,#a78bfa45,transparent 60%),radial-gradient(60% 70% at 85% 110%,#22d3ee2e,transparent 60%),linear-gradient(160deg,#0e1526,#080b13);--hero-line:#ffffff1f;--hero-ink:#f8fafc;--hero-muted:#b9c4d8;--term-bg:#04060ae0;--term-ink:#d7e3f2;--term-muted:#7f97b8;--term-prompt:#4ade80;--aurora:radial-gradient(55% 45% at 12% -8%,#3d6ef04d,transparent 70%),radial-gradient(45% 40% at 92% -6%,#a78bfa3d,transparent 70%),radial-gradient(40% 35% at 55% 105%,#22d3ee1f,transparent 70%);--dot:#ffffff12;--selection:#5b8cff4d;--ring-from:#5b8cff;--ring-to:#22d3ee;--highlight:inset 0 1px 0 #ffffff12;--shadow:0 1px 2px #0006,0 10px 32px -14px #000000b3;--shadow-lg:0 2px 6px #0006,0 24px 60px -20px #000c;--r-xl:24px;--r-lg:18px;--r-md:14px;--r-sm:10px;--ease-out:cubic-bezier(.22,1,.36,1);--ease-spring:cubic-bezier(.34,1.56,.64,1);--font:"Inter",system-ui,-apple-system,sans-serif;--display:"Inter",system-ui,sans-serif;--mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}:root[data-theme=light]{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#e8ebf0;--card:#f4f6f9d9;--card-solid:#f3f5f8;--soft:#0f172a0a;--hover:#0f172a0d;--line:#0f172a17;--line-strong:#0f172a26;--field:#f7f8fa;--field-border:#0f172a2e;--navy:#141a26;--ink:#232a37;--muted:#475161;--subtle:#556072;--blue:#1f4cc4;--accent-soft:#3d6ef017;--accent-line:#3d6ef04d;--accent-text:#1c41ad;--focus:#3d6ef0;--green:#166534;--on-green:#fff;--success-soft:#16a34a17;--success-line:#16a34a4d;--success-text:#14532d;--warning-soft:#f59e0b1a;--warning-line:#d9770666;--warning-text:#7c3a0a;--danger:#b4232f;--danger-soft:#b4232f17;--code-bg:#161c27;--code-ink:#cfd8e6;--code-border:#161c27;--aurora:radial-gradient(55% 45% at 12% -8%,#3d6ef01f,transparent 70%),radial-gradient(45% 40% at 92% -6%,#a78bfa1a,transparent 70%),radial-gradient(40% 35% at 55% 105%,#22d3ee12,transparent 70%);--dot:#0f172a12;--selection:#3d6ef02e;--ring-from:#3d6ef0;--ring-to:#0891b2;--highlight:inset 0 1px 0 #fff9;--shadow:0 1px 2px #0f172a0d,0 10px 28px -18px #0f172a33;--shadow-lg:0 2px 6px #0f172a12,0 22px 50px -26px #0f172a4d}*{box-sizing:border-box}html{background:var(--bg)}body{background:var(--bg);min-height:100vh;color:var(--ink);font:14px/1.6 var(--font);font-feature-settings:"cv11","calt";-webkit-font-smoothing:antialiased;margin:0}body:after{content:"";z-index:-2;pointer-events:none;background:var(--aurora);animation:40s ease-in-out infinite alternate drift;position:fixed;inset:-15%}body:before{content:"";z-index:-1;pointer-events:none;background-image:radial-gradient(var(--dot) 1px,transparent 1px);background-size:22px 22px;position:fixed;inset:0;-webkit-mask-image:linear-gradient(#000,#0000 55%);mask-image:linear-gradient(#000,#0000 55%)}::selection{background:var(--selection)}h1,h2,h3,p{margin:0}h1,h2{font-family:var(--display);color:var(--navy);letter-spacing:-.02em}h1{font-size:32px;font-weight:700;line-height:1.25}h2{font-size:20px;font-weight:600;line-height:1.35}h3{color:var(--navy);font-size:15px;font-weight:600}a{color:var(--blue);text-decoration:none}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}:is(a,button,summary,select,input):focus-visible{outline:2px solid var(--focus);outline-offset:3px}code,pre{font-family:var(--mono)}code{font-size:.88em}pre{overflow-x:auto}label{color:var(--ink);flex-direction:column;gap:7px;margin:16px 0;font-size:12px;font-weight:600;display:flex}input,select{border:1px solid var(--field-border);border-radius:var(--r-sm);background:var(--field);width:100%;min-height:44px;color:var(--ink);padding:11px 13px;transition:border-color .15s,box-shadow .15s}input:focus,select:focus{border-color:var(--focus);box-shadow:0 0 0 4px var(--accent-soft);outline:0}input[type=checkbox]{width:auto;min-height:0;accent-color:var(--primary)}.muted{color:var(--muted);font-size:12px}.eyebrow{font:500 11px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--subtle)}:is(.panel,.tile,.stage-card,.stage-detail,.module-group,.lesson-list,.path-extension,.lesson-navigation){background:var(--card);border:1px solid var(--line);box-shadow:var(--highlight),var(--shadow);-webkit-backdrop-filter:blur(16px)saturate(140%);backdrop-filter:blur(16px)saturate(140%)}.panel{border-radius:var(--r-lg);padding:24px}.panel>p{color:var(--muted);margin-top:10px;font-size:13px}.panel>.section-heading:first-child{margin-top:0}.button{border-radius:var(--r-sm);background:linear-gradient(180deg,var(--primary-top),var(--primary-2));color:var(--on-primary);box-shadow:inset 0 1px 0 #ffffff40,0 0 0 1px var(--primary-2),0 8px 20px -8px #3d6ef0b3;transition:transform .25s var(--ease-spring),filter .15s,box-shadow .2s;border:0;justify-content:center;align-items:center;gap:10px;padding:11px 18px;font-size:13px;font-weight:600;display:inline-flex}.button:active{transform:translateY(0)scale(.98)}.button:disabled{filter:none;transform:none}.button svg{transition:transform .25s var(--ease-spring)}.button.small{gap:8px;padding:8px 13px;font-size:12px}.button.full{width:100%}.button.secondary{background:var(--soft);color:var(--ink);box-shadow:var(--highlight),0 0 0 1px var(--line-strong)}.button.secondary:hover{background:var(--hover);filter:none}.button.white{color:#0b1020;background:#fff;box-shadow:inset 0 -1px #0b10201a,0 8px 24px -8px #000000b3}.text-button{color:var(--blue);background:0 0;border:0;padding:0;font-size:12px;font-weight:600}.text-button:hover{text-underline-offset:3px;text-decoration:underline}.text-button.danger{color:var(--danger)}.badge{background:var(--soft);box-shadow:inset 0 0 0 1px var(--line);color:var(--muted);white-space:nowrap;border-radius:999px;align-items:center;gap:6px;padding:3px 10px;font-size:11px;font-weight:500;display:inline-flex}.badge.outline{background:var(--accent-soft);box-shadow:inset 0 0 0 1px var(--accent-line);color:var(--accent-text)}.badge.success{background:var(--success-soft);box-shadow:inset 0 0 0 1px var(--success-line);color:var(--green)}.badge.here{background:linear-gradient(120deg,var(--primary),var(--violet));box-shadow:none;color:#fff}.notice{border:1px solid var(--accent-line);border-radius:var(--r-md);background:var(--accent-soft);color:var(--accent-text);margin-bottom:20px;padding:12px 16px;font-size:13px;display:block}.notice.warning{border-color:var(--warning-line);background:var(--warning-soft);color:var(--warning-text)}.notice code{white-space:nowrap}.notice .text-button{margin-left:12px}.meter{background:var(--line);border-radius:99px;height:6px;margin-top:14px;overflow:hidden}.meter span{border-radius:inherit;background:linear-gradient(90deg,var(--ring-from),var(--ring-to));height:100%;transition:width .8s var(--ease-out);display:block}.pill{color:#e1e9fb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#ffffff12;border:1px solid #ffffff2e;border-radius:999px;align-items:center;gap:8px;padding:5px 12px 5px 10px;font-size:12px;font-weight:500;display:inline-flex}.pill:before{content:"";background:var(--term-prompt);border-radius:50%;width:7px;height:7px;animation:2.4s ease-in-out infinite pulse;box-shadow:0 0 0 3px #4ade8033}.green-dot{background:var(--green);width:7px;height:7px;box-shadow:0 0 0 3px var(--success-soft);border-radius:50%;margin-right:7px;display:inline-block}.theme-toggle{border-radius:var(--r-sm);background:var(--soft);min-height:36px;box-shadow:var(--highlight),0 0 0 1px var(--line);color:var(--ink);border:0;flex-shrink:0;justify-content:center;align-items:center;gap:7px;padding:7px 11px;font-size:12px;font-weight:500;transition:background .15s;display:inline-flex}.theme-toggle:hover{background:var(--hover)}.avatar{background:linear-gradient(135deg,var(--primary),var(--violet));color:#fff;width:32px;height:32px;box-shadow:0 0 0 2px var(--bg),0 0 0 3px var(--line-strong);border-radius:50%;place-items:center;font-size:13px;font-weight:600;display:grid}.account{align-items:center;gap:12px;font-size:13px;display:flex}.account-name{color:var(--ink);font-weight:500}.app-shell{min-height:100vh;display:flex}.sidebar{border-right:1px solid var(--line);background:color-mix(in srgb,var(--bg) 55%,transparent);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);flex-direction:column;width:248px;padding:24px 16px;display:flex;position:fixed;inset:0 auto 0 0}.brand{color:var(--navy);font:700 22px var(--display);letter-spacing:-.03em;align-items:center;gap:11px;padding:0 6px;display:flex}.brand-logo{filter:drop-shadow(0 6px 14px #3d6ef059);flex-shrink:0;width:38px;height:38px;display:block}.brand-caption{font:500 9px var(--mono);letter-spacing:.18em;color:var(--subtle);line-height:1.4;display:block}.nav-label{color:var(--subtle);margin:36px 10px 10px;font-size:12px;font-weight:500}.sidebar nav{flex-direction:column;gap:4px;display:flex;position:relative}.nav-indicator{border-radius:var(--r-sm);background:var(--accent-soft);height:40px;box-shadow:inset 0 0 0 1px var(--accent-line);transform:translateY(calc(var(--i) * 44px));transition:transform .5s var(--ease-spring);position:absolute;top:0;left:0;right:0}.nav-item{border-radius:var(--r-sm);width:100%;height:40px;color:var(--muted);text-align:left;background:0 0;border:0;align-items:center;gap:12px;margin:0;padding:0 12px;font-size:13.5px;font-weight:500;transition:background .15s,color .15s;display:flex;position:relative}.nav-item svg{opacity:.85;flex-shrink:0}.nav-item:hover{background:var(--hover);color:var(--ink)}.nav-item.active,.nav-item.active:hover{color:var(--navy);background:0 0}.nav-item.active svg{color:var(--accent-text);opacity:1}.sidebar-bottom{border:1px solid var(--line);border-radius:var(--r-md);background:var(--soft);color:var(--ink);margin-top:auto;padding:14px;font-size:12px}.sidebar-bottom strong{align-items:center;font-weight:600;display:flex}.sidebar-bottom p{color:var(--subtle);margin-top:6px;font-size:12px}.main-wrap{width:calc(100% - 248px);margin-left:248px}.topbar{z-index:10;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 70%,transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);justify-content:space-between;align-items:center;height:60px;padding:0 40px;display:flex;position:sticky;top:0}.topbar-label{color:var(--subtle);gap:8px;font-size:13px;display:flex}.topbar-label strong{color:var(--navy);font-weight:500}.page-content{max-width:1280px;margin:0 auto;padding:36px 40px 24px}.page-heading{justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:28px;display:flex}.page-heading h1{margin:8px 0 10px}.page-heading p{max-width:680px;color:var(--muted);font-size:14px}.page-heading.compact{margin-bottom:22px}.page-heading.compact h1{margin-bottom:0}.section-heading{justify-content:space-between;align-items:center;gap:12px;margin:32px 0 16px;display:flex}.section-heading>span{color:var(--subtle);font-size:12px}.page-footer{border-top:1px solid var(--line);font:11px var(--mono);color:var(--subtle);justify-content:space-between;gap:12px;margin-top:40px;padding:20px 0;display:flex}.bento{grid-template-columns:repeat(3,minmax(0,1fr));grid-auto-flow:dense;gap:16px;display:grid}.tile{border-radius:var(--r-lg);min-width:0;padding:22px}.tile-label{color:var(--subtle);align-items:center;gap:7px;font-size:12px;font-weight:500;display:flex}.tile-title{font:600 17px/1.4 var(--display);color:var(--navy);letter-spacing:-.01em;margin-top:6px;display:block}.tile-title.muted-title{color:var(--subtle)}.tile-number{font:600 36px/1 var(--mono);color:var(--navy);letter-spacing:-.04em;font-variant-numeric:tabular-nums;margin-top:10px;display:block}.tile-number small{color:var(--subtle);letter-spacing:0;font-size:15px;font-weight:400}.tile-note{color:var(--muted);margin-top:8px;font-size:12.5px}.tile-note b{color:var(--ink);font-weight:600}.tile .button,.tile .text-button{margin-top:14px}.tile-head{justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px;display:flex}.tile-head h2{font-size:16px}.tile-head a{font-size:12px;font-weight:600}.focus-card{border-color:var(--hero-line);border-radius:var(--r-xl);background:var(--hero-bg);color:var(--hero-ink);box-shadow:inset 0 1px 0 #ffffff1f,var(--shadow-lg);grid-area:span 2/span 2;grid-template-columns:minmax(0,1fr) 260px;align-items:end;gap:28px;padding:32px;display:grid;position:relative;overflow:hidden}.focus-card:before{content:"";pointer-events:none;background-image:linear-gradient(#ffffff0a 1px,#0000 1px),linear-gradient(90deg,#ffffff0a 1px,#0000 1px);background-size:28px 28px;position:absolute;inset:0;-webkit-mask-image:radial-gradient(80% 90% at 70% 0,#000,#0000 75%);mask-image:radial-gradient(80% 90% at 70% 0,#000,#0000 75%)}.focus-card>*{min-width:0;position:relative}.focus-context{font:500 11.5px var(--mono);color:var(--hero-muted);flex-wrap:wrap;gap:4px 10px;margin:22px 0 10px;display:flex}.focus-context>span{opacity:.45}.focus-card h2{max-width:620px;color:var(--hero-ink);letter-spacing:-.022em;font-size:32px;font-weight:700;line-height:1.25}.focus-main>p{max-width:560px;color:var(--hero-muted);margin:12px 0 20px;font-size:14px;line-height:1.75}.focus-meta{flex-wrap:wrap;gap:8px;margin:0 0 26px;padding:0;list-style:none;display:flex}.focus-meta li{color:#dce5f5;background:#ffffff0d;border:1px solid #ffffff1f;border-radius:999px;align-items:center;gap:6px;padding:5px 11px;font-size:12px;display:inline-flex}.focus-meta svg{opacity:.75}.focus-group{border-radius:var(--r-md);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffff0a;border:1px solid #ffffff1f;padding:20px;box-shadow:inset 0 1px #ffffff14}.focus-group>span{color:var(--hero-muted);font-size:11.5px}.focus-group>strong{color:var(--hero-ink);margin:8px 0 18px;font-size:14px;font-weight:600;line-height:1.6;display:block}.focus-group>small{color:var(--hero-muted);margin-top:10px;font-size:11.5px;display:block}.focus-steps{gap:4px;margin:0;padding:0;list-style:none;display:flex}.focus-steps li{background:#ffffff26;border-radius:3px;flex:1;height:6px}.focus-steps li.done{background:var(--term-prompt)}.focus-steps li.current{background:#fff;box-shadow:0 0 12px #ffffffa6}.ring-tile{align-items:center;gap:20px;display:flex}.ring-wrap{flex-shrink:0;width:112px;height:112px;position:relative}.progress-ring{width:100%;height:100%}.progress-ring circle{fill:none;stroke-width:8px}.progress-ring-track{stroke:var(--line-strong)}.progress-ring-value{stroke:url(#ring-gradient);stroke-linecap:round;transition:stroke-dashoffset 1s var(--ease-out)}.ring-label{justify-content:center;align-items:baseline;gap:3px;padding-top:40px;display:flex;position:absolute;inset:0}.ring-label strong{font:600 26px/1 var(--mono);color:var(--navy)}.ring-label small{font:12px var(--mono);color:var(--subtle)}.server-tile{flex-direction:column;align-items:flex-start;display:flex}.server-tile .tile-note{align-items:center;display:flex}.server-tile :is(.button,.text-button){margin-top:auto}.up-next{grid-column:span 2}.up-next ol{counter-reset:next;margin:0;padding:0;list-style:none}.up-next li+li{border-top:1px solid var(--line)}.up-next li a{border-radius:var(--r-sm);color:var(--ink);counter-increment:next;align-items:center;gap:14px;margin:0 -10px;padding:12px 10px;transition:background .15s;display:flex}.up-next li a:before{content:counter(next,decimal-leading-zero);font:500 11px var(--mono);color:var(--subtle)}.up-next li a:hover{background:var(--hover)}.up-next-title{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;font-size:13.5px;font-weight:500;overflow:hidden}.up-next-meta{font:11px var(--mono);color:var(--subtle)}.milestone-track{gap:5px;margin:16px 0 0;padding:0;list-style:none;display:flex}.milestone-track li{background:var(--line-strong);border-radius:4px;flex:1;height:8px}.milestone-track li.done{background:var(--green)}.milestone-track li.current{background:linear-gradient(90deg,var(--primary),var(--violet));animation:2.4s ease-in-out infinite pulse}.path-finished .button{margin-top:16px}.setup-tile{flex-direction:column;display:flex}.setup-steps{gap:2px;margin:4px 0 16px;padding:0;list-style:none;display:grid}.setup-steps li{color:var(--muted);align-items:center;gap:12px;padding:7px 0;font-size:13px;display:flex}.setup-mark{width:24px;height:24px;box-shadow:inset 0 0 0 1.5px var(--line-strong);color:var(--subtle);font:600 11px var(--mono);border-radius:50%;flex-shrink:0;place-items:center;display:grid}.setup-steps li.done{color:var(--subtle);text-decoration:line-through;-webkit-text-decoration-color:var(--line-strong);text-decoration-color:var(--line-strong)}.setup-steps li.done .setup-mark{background:var(--green);box-shadow:none;color:var(--on-green)}.setup-steps li.current{color:var(--navy);font-weight:600}.setup-steps li.current .setup-mark{background:linear-gradient(135deg,var(--primary),var(--violet));box-shadow:0 0 0 4px var(--accent-soft);color:#fff}.setup-tile>.button{align-self:flex-start;margin-top:auto}.stage-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:16px 0 28px;display:grid}.stage-card{border-radius:var(--r-lg);min-width:0;color:var(--ink);text-align:left;transition:transform .3s var(--ease-spring),border-color .2s;flex-direction:column;padding:20px;display:flex}.stage-card.selected{background:linear-gradient(var(--card-solid),var(--card-solid)) padding-box,linear-gradient(135deg,var(--primary),var(--violet) 55%,var(--cyan)) border-box;box-shadow:var(--highlight),0 14px 36px -14px #3d6ef099;border:1px solid #0000}.stage-card-top{justify-content:space-between;align-items:center;gap:8px;margin-bottom:18px;display:flex}.stage-index{border-radius:var(--r-sm);background:var(--soft);width:34px;height:34px;box-shadow:inset 0 0 0 1px var(--line);color:var(--muted);font:600 12px var(--mono);flex-shrink:0;place-items:center;display:grid}.stage-card.selected .stage-index{background:linear-gradient(135deg,var(--primary),var(--violet));box-shadow:none;color:#fff}.stage-card h3{min-height:44px;font:600 15.5px/1.45 var(--display);letter-spacing:-.01em;margin-bottom:8px}.stage-card p{color:var(--muted);margin-bottom:20px;font-size:12.5px;line-height:1.7}.stage-card-meta{border-top:1px solid var(--line);color:var(--subtle);justify-content:space-between;align-items:center;gap:6px;margin-top:auto;padding-top:14px;font-size:11.5px;display:flex}.stage-card-meta svg{color:var(--accent-text);transition:transform .25s var(--ease-spring)}.stage-detail{border-radius:var(--r-xl);padding:28px}.stage-detail-heading{justify-content:space-between;align-items:center;gap:24px;margin-bottom:22px;display:flex}.stage-detail-heading h2{margin:8px 0;font-size:26px}.stage-detail-heading p{color:var(--muted);font-size:13.5px;line-height:1.75}.stage-completion{text-align:right;min-width:180px}.stage-completion strong{font:600 30px var(--mono);color:var(--navy);letter-spacing:-.04em;display:block}.stage-completion small{color:var(--subtle);font-size:14px;font-weight:400}.stage-completion>span{color:var(--muted);font-size:12px}.stage-product{border:1px solid var(--success-line);border-radius:var(--r-md);background:var(--success-soft);align-items:flex-start;gap:14px;padding:18px;display:flex}.stage-product-icon{background:var(--green);width:30px;height:30px;color:var(--on-green);border-radius:9px;flex-shrink:0;place-items:center;font-size:15px;font-weight:700;display:grid}.stage-product strong{color:var(--green);font-size:13px}.stage-product p{color:var(--success-text);margin-top:4px;font-size:13px;line-height:1.7}.stage-outcomes{flex-wrap:wrap;gap:8px;margin:16px 0 22px;padding:0;list-style:none;display:flex}.stage-outcomes li{background:var(--soft);box-shadow:inset 0 0 0 1px var(--line);color:var(--muted);border-radius:999px;padding:5px 12px;font-size:12px}.path-guidance{color:var(--muted);margin:0 0 22px;font-size:13px;line-height:1.75}.path-groups{gap:12px;display:grid}.module-group{border-radius:var(--r-md);box-shadow:var(--highlight);overflow:hidden}.module-group.focused{border-color:var(--accent-line);box-shadow:var(--highlight),0 0 0 3px var(--accent-soft)}.module-group>summary{cursor:pointer;align-items:center;gap:12px;padding:16px 18px;list-style:none;transition:background .15s;display:flex}.module-group>summary::-webkit-details-marker{display:none}.module-group>summary:hover{background:var(--hover)}.module-group[open]>summary{border-bottom:1px solid var(--line)}.module-group>summary>.path-group-heading{flex:1;min-width:0;margin:0}.chevron{color:var(--subtle);transition:transform .25s var(--ease-out);display:grid}.module-group[open] .chevron{transform:rotate(180deg)}.path-group-heading{align-items:center;gap:12px;display:flex}.path-group-heading>div{flex:1;min-width:0}.path-group-heading h3{font-size:14.5px}.path-group-heading p{color:var(--muted);margin-top:2px;font-size:12px;line-height:1.6}.path-group-index{background:var(--accent-soft);width:30px;height:30px;box-shadow:inset 0 0 0 1px var(--accent-line);color:var(--accent-text);font:600 12px var(--mono);border-radius:9px;flex-shrink:0;place-items:center;display:grid}.lesson-list{border-radius:var(--r-md);overflow:hidden}.module-group .lesson-list{box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border:0;border-radius:0}.lesson-row{border-bottom:1px solid var(--line);color:inherit;align-items:center;gap:16px;padding:15px 18px;transition:background .15s;display:flex}.lesson-row:last-child{border-bottom:0}.lesson-row:hover{background:var(--hover)}.lesson-row.current{background:var(--accent-soft);box-shadow:inset 3px 0 var(--primary)}.lesson-row.completed h3{color:var(--muted);font-weight:500}.lesson-number{border-radius:var(--r-sm);background:var(--soft);width:36px;height:36px;box-shadow:inset 0 0 0 1px var(--line);color:var(--muted);font:500 12px var(--mono);flex-shrink:0;place-items:center;display:grid}.lesson-number.done{background:var(--success-soft);box-shadow:inset 0 0 0 1px var(--success-line);color:var(--green)}.lesson-row.current .lesson-number{background:linear-gradient(135deg,var(--primary),var(--violet));box-shadow:none;color:#fff}.lesson-info{flex:1;min-width:0}.lesson-info .eyebrow{letter-spacing:.04em;text-transform:none;margin-bottom:3px;font-size:10.5px}.lesson-info h3{font-size:14px}.lesson-info p{color:var(--muted);margin-top:3px;font-size:12px}.current-tag{color:var(--accent-text);font-weight:600}.kind-breakfix{color:var(--warning-text)}.kind-checkpoint{color:var(--green)}.lesson-meta{color:var(--subtle);flex-direction:column;align-items:flex-end;gap:6px;font-size:11px;display:flex}.arrow{color:var(--subtle);transition:transform .25s var(--ease-spring),color .15s;display:grid}.path-extension{border-radius:var(--r-md);margin-top:24px;padding:0 18px}.path-extension>summary{cursor:pointer;align-items:center;gap:15px;padding:16px 0;list-style:none;display:flex}.path-extension>summary::-webkit-details-marker{display:none}.path-extension>summary:before{content:"+";color:var(--muted);font-size:20px}.path-extension[open]>summary:before{content:"−"}.path-extension>summary>div{flex:1}.path-extension>summary strong{font-size:13.5px;display:block}.path-extension>summary div>span{color:var(--muted);font-size:12px}.path-extension>p{color:var(--muted);margin:0 0 16px;font-size:13px;line-height:1.75}.path-extension .lesson-list{margin-bottom:18px}.extension-module{margin-top:20px}.extension-module>h3{margin-bottom:10px;font-size:13px}.stage-planned{border:1px dashed var(--line-strong);border-radius:var(--r-md);background:var(--soft);padding:24px}.stage-planned strong{font-size:14px}.stage-planned p{color:var(--muted);margin:9px 0;font-size:13px;line-height:1.75}.stage-planned .button{margin-top:12px}.empty{text-align:center;color:var(--subtle);padding:44px 20px;font-size:13px}.empty>span{background:var(--soft);width:56px;height:56px;box-shadow:inset 0 0 0 1px var(--line);color:var(--muted);border-radius:16px;place-items:center;display:inline-grid}.empty h3{color:var(--ink);margin:14px 0 6px}.server-layout{grid-template-columns:1.25fr 1fr;align-items:start;gap:20px;display:grid}.server-layout>*{min-width:0}pre.code-block{border:1px solid var(--code-border);border-radius:var(--r-md);background:var(--code-bg);max-width:100%;color:var(--code-ink);white-space:pre;margin:18px 0;padding:18px;font-size:12px;line-height:1.85;overflow-x:auto;box-shadow:inset 0 1px #ffffff0d}.device-card{border-bottom:1px solid var(--line);padding:18px 0}.device-card:last-child{border-bottom:0}.device-heading{align-items:center;gap:12px;display:flex}.device-icon{border-radius:var(--r-sm);background:var(--accent-soft);width:40px;height:40px;box-shadow:inset 0 0 0 1px var(--accent-line);color:var(--accent-text);place-items:center;display:grid}.device-heading p{color:var(--muted);margin-top:2px;font-size:12px}.device-actions{justify-content:space-between;align-items:center;margin-top:12px;display:flex}.stepper{margin:4px 0 0;padding:0;list-style:none;position:relative}.stepper>li{gap:16px;padding-bottom:26px;display:flex;position:relative}.stepper>li:last-child{padding-bottom:0}.stepper>li:not(:last-child):before{content:"";background:var(--line);border-radius:1px;width:2px;position:absolute;top:32px;bottom:4px;left:13px}.stepper>li.done:not(:last-child):before{background:var(--green)}.stepper-mark{width:28px;height:28px;box-shadow:inset 0 0 0 1.5px var(--line-strong);background:var(--card-solid);color:var(--subtle);font:600 12px var(--mono);border-radius:50%;flex-shrink:0;place-items:center;display:grid}.stepper>li.done .stepper-mark{background:var(--green);box-shadow:none;color:var(--on-green)}.stepper>li.current .stepper-mark{background:linear-gradient(135deg,var(--primary),var(--violet));box-shadow:0 0 0 4px var(--accent-soft);color:#fff}.stepper-body{flex:1;min-width:0;padding-top:3px}.stepper-body h3{margin-bottom:6px;font-size:14.5px}.stepper-body>p{color:var(--muted);margin-bottom:12px;font-size:13px;line-height:1.7}.stepper-body b{color:var(--ink);font-weight:600}.stepper-body .code-window{margin:0}.stepper-body .code-window pre{white-space:pre-wrap;overflow-wrap:anywhere}.stepper>li:not(.current):not(.done) .stepper-body h3{color:var(--muted)}.script-preview{border:1px solid var(--line);border-radius:var(--r-md);background:var(--soft);margin-top:12px}.script-preview>summary{cursor:pointer;color:var(--ink);align-items:center;gap:8px;padding:10px 14px;font-size:13px;font-weight:600;list-style:none;display:flex}.script-preview>summary::-webkit-details-marker{display:none}.script-preview>summary:after{content:"+";color:var(--subtle);margin-left:auto;font-weight:400}.script-preview[open]>summary:after{content:"−"}.script-preview>summary svg{color:var(--accent-text)}.script-preview>:not(summary){margin:0 12px 12px}.script-preview .code-window pre{max-height:360px;overflow-y:auto}.script-preview>p{font-size:12px;line-height:1.7}.script-preview>p code{overflow-wrap:anywhere}.pair-form{grid-template-columns:1fr 1fr;align-items:end;gap:0 12px;display:grid}.pair-form label{margin:0 0 12px}.pair-form input{font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase}.pair-form input::placeholder{letter-spacing:0;text-transform:none}.pair-form .button{grid-column:1/-1;justify-self:start}.device-list{margin:0;padding:0;list-style:none}.device-heading>div{flex:1;min-width:0}.device-status{white-space:nowrap;background:var(--soft);box-shadow:inset 0 0 0 1px var(--line);color:var(--muted);border-radius:999px;align-items:center;gap:7px;padding:3px 10px;font-size:11.5px;font-weight:500;display:inline-flex}.device-status:before{content:"";background:currentColor;border-radius:50%;width:7px;height:7px}.device-status.online{background:var(--success-soft);box-shadow:inset 0 0 0 1px var(--success-line);color:var(--green)}.device-status.online:before{box-shadow:0 0 0 3px var(--success-soft);animation:2s ease-in-out infinite pulse}.device-status.waiting{background:var(--warning-soft);box-shadow:inset 0 0 0 1px var(--warning-line);color:var(--warning-text)}.device-seen{color:var(--subtle);margin:10px 0 0 52px;font-size:12px}.device-actions{margin-left:52px}.switch{cursor:pointer;flex-direction:row;align-items:center;gap:10px;margin:0;font-size:13px;font-weight:500;display:inline-flex;position:relative}.switch input{opacity:0;width:1px;height:1px;position:absolute}.switch-track{background:var(--line-strong);border-radius:999px;flex-shrink:0;width:36px;height:20px;transition:background .2s;position:relative}.switch-track:after{content:"";width:16px;height:16px;transition:transform .3s var(--ease-spring);background:#fff;border-radius:50%;position:absolute;top:2px;left:2px;box-shadow:0 1px 3px #0000004d}.switch input:checked+.switch-track{background:var(--primary)}.switch input:checked+.switch-track:after{transform:translate(16px)}.switch input:focus-visible+.switch-track{outline:2px solid var(--focus);outline-offset:3px}.switch input:disabled+.switch-track{opacity:.5}.device-skeleton{gap:12px;display:grid}.device-skeleton>div{border-radius:var(--r-md);background:linear-gradient(90deg,var(--soft),var(--hover),var(--soft));background-size:200% 100%;height:88px;animation:1.4s linear infinite shimmer}.release-row{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:16px 0;display:flex}.release-row p{color:var(--muted);font-size:12px}.focus-shell{min-height:100vh}.focus-bar{z-index:10;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 70%,transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);align-items:center;gap:14px;height:56px;padding:0 24px;display:flex;position:sticky;top:0}.focus-home img{display:block}.focus-back{color:var(--muted);white-space:nowrap;font-size:13px;font-weight:500}.focus-back:hover{color:var(--ink)}.focus-bar-context{border-left:1px solid var(--line);min-width:0;font:500 11.5px var(--mono);color:var(--subtle);white-space:nowrap;text-overflow:ellipsis;flex:1;padding-left:14px;overflow:hidden}.focus-content{max-width:1240px;padding-top:32px}.lesson-heading{max-width:760px;margin-bottom:26px}.lesson-heading h1{margin:8px 0;font-size:34px}.lesson-heading p{color:var(--muted);font-size:14px}.lesson-layout{grid-template-columns:minmax(0,1fr) 340px;align-items:start;gap:24px;display:grid}.back-link{color:var(--muted);margin-bottom:24px;font-size:13px;display:inline-block}.markdown{min-width:0;font-size:15px;line-height:1.8}.focus-content .markdown{border-radius:var(--r-xl);padding:36px 40px}.focus-content .markdown>*{max-width:76ch}.markdown>:first-child{margin-top:0}.markdown h1{margin:0 0 24px;font-size:28px}.markdown h2{margin:40px 0 12px;font-size:21px}.markdown h3{margin:28px 0 10px;font-size:16px}.markdown p{color:var(--ink);margin:12px 0}.markdown :is(ul,ol){color:var(--ink);padding-left:22px}.markdown li{margin:4px 0}.markdown li::marker{color:var(--subtle)}.markdown strong{color:var(--navy)}.markdown blockquote{border-left:3px solid var(--primary);border-radius:0 var(--r-sm) var(--r-sm) 0;background:var(--accent-soft);color:var(--ink);margin:18px 0;padding:12px 16px}.markdown blockquote p{margin:4px 0}.markdown table{border:1px solid var(--line);border-collapse:separate;border-spacing:0;border-radius:var(--r-md);width:100%;margin:18px 0;font-size:13px;overflow:hidden}.markdown th,.markdown td{border-bottom:1px solid var(--line);text-align:left;padding:9px 12px}.markdown tr:last-child td{border-bottom:0}.markdown th{background:var(--soft);color:var(--navy);font-weight:600}.markdown code:not(pre code){background:var(--soft);box-shadow:inset 0 0 0 1px var(--line);color:var(--navy);border-radius:6px;padding:2px 6px}.code-window pre{color:var(--code-ink);margin:0;padding:14px 20px 18px;font-size:12.5px;line-height:1.75}.markdown .command-block{min-width:0;margin:18px 0;position:relative}.code-window{border:1px solid var(--code-border);border-radius:var(--r-md);background:var(--code-bg);min-width:0;box-shadow:inset 0 1px 0 #ffffff0d,var(--shadow);white-space:normal;margin:18px 0;padding:0;position:relative;overflow:hidden}.markdown .command-block>.code-block{margin:0}.code-head{background:#ffffff06;border-bottom:1px solid #ffffff10;align-items:center;gap:12px;height:38px;padding:0 14px;display:flex}.code-dots{gap:6px;display:flex}.code-dots i{background:#ff5f57;border-radius:50%;width:10px;height:10px}.code-dots i:nth-child(2){background:#febc2e}.code-dots i:nth-child(3){background:#28c840}.code-lang{font:500 11px var(--mono);color:#8b98ad}.code-window pre{scrollbar-width:thin;scrollbar-color:#ffffff2e transparent}.code-window pre::-webkit-scrollbar{height:8px}.code-window pre::-webkit-scrollbar-thumb{background:#ffffff2e padding-box padding-box;border:2px solid #0000;border-radius:8px}.code-window pre::-webkit-scrollbar-thumb:hover{background-color:#ffffff4d}.code-window pre::-webkit-scrollbar-track{background:0 0}.tok-command{color:#7dd3fc}.tok-keyword{color:#c084fc}.tok-flag{color:#c4b5fd}.tok-string{color:#f5c06b}.tok-variable{color:#f9a8d4}.tok-comment{color:#7d8ba1;font-style:italic}.tok-operator,.tok-punct{color:#94a3b8}.tok-heredoc{color:#b8c4d6}.tok-key{color:#7dd3fc}.tok-literal{color:#fdba74}.tok-section{color:#c4b5fd;font-weight:600}.command-help>summary,.copy-code-button{border:1px solid var(--code-btn-line);background:var(--code-btn);width:28px;height:28px;color:var(--code-ink);cursor:pointer;border-radius:8px;justify-content:center;align-items:center;padding:0;list-style:none;transition:background .15s,border-color .15s;display:flex;position:absolute;top:5px;right:8px}.command-block .copy-code-button{right:42px}.copy-code-button:hover{background:var(--code-btn-hover);border-color:#7fb7ff}.copy-code-button.copied{border-color:var(--term-prompt);color:var(--term-prompt)}.command-help>summary::-webkit-details-marker{display:none}.command-help>summary:hover,.command-help[open]>summary{background:var(--code-btn-hover);color:#fcd34d;border-color:#fbbf24}.command-help-label{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.markdown .command-help-content{border:1px solid var(--warning-line);border-radius:var(--r-md);background:var(--warning-soft);margin-top:8px;padding:16px 18px;overflow-x:auto}.markdown .command-help-content:before{content:"Giải thích lệnh và tham số";color:var(--warning-text);margin-bottom:10px;font-size:12px;font-weight:700;display:block}.markdown .command-help-content>:first-child{margin-top:0}.markdown .command-help-content>:last-child{margin-bottom:0}.code-window .copy-code-error{color:#fcd34d;margin:0;padding:0 20px 14px;font-size:12px}.check-panel{position:sticky;top:76px}.check-panel .panel{padding:22px;position:relative;overflow:hidden}.check-panel .panel:before{content:"";background:linear-gradient(90deg,var(--primary),var(--violet),var(--cyan));height:2px;position:absolute;inset:0 0 auto}.check-panel .section-heading{margin-top:0}.check-panel h2{font-size:16px}.task-list{margin:16px 0}.task-item{border-bottom:1px solid var(--line);align-items:flex-start;gap:12px;padding:12px 0;display:flex}.task-item strong{font-size:13px;font-weight:500}.task-item p{color:var(--subtle);margin-top:3px;font-size:12px}.task-status{width:22px;height:22px;box-shadow:inset 0 0 0 1.5px var(--line-strong);color:var(--subtle);border-radius:50%;flex-shrink:0;place-items:center;margin-top:-1px;display:grid}.passed .task-status{background:var(--green);box-shadow:none;color:var(--on-green)}.failed .task-status{background:var(--danger-soft);box-shadow:inset 0 0 0 1.5px var(--danger);color:var(--danger)}.assessment-scope{border-radius:var(--r-sm);background:var(--soft);box-shadow:inset 0 0 0 1px var(--line);margin:12px 0;padding:12px;font-size:12px;line-height:1.7}.result-summary{border-radius:var(--r-md);background:var(--soft);box-shadow:inset 0 0 0 1px var(--line);margin:16px 0;padding:16px;font-size:13px}.result-summary.complete{background:var(--success-soft);box-shadow:inset 0 0 0 1px var(--success-line);color:var(--success-text)}.result-summary.complete strong{color:var(--green)}.result-summary p{margin:6px 0 12px;font-size:12px}.result-summary a:not(.button){font-size:12px}.check-panel .sudo-hint{margin:12px 0 0;font-size:12.5px;line-height:1.6}.micro-copy{color:var(--subtle);margin-top:16px;font-size:11.5px;line-height:1.7}.release-info{font:10.5px var(--mono);color:var(--subtle);margin-top:10px}.lesson-navigation{border-radius:var(--r-lg);justify-content:space-between;align-items:center;gap:24px;margin-top:24px;padding:22px 24px;display:flex}.next-lesson-info{min-width:0}.next-lesson-info h2{overflow-wrap:anywhere;margin:6px 0 2px;font-size:18px}.lesson-navigation .button{flex-shrink:0}.lesson-toc{display:none}.lesson-toc ol,.toc-inline ol{margin:0;padding:0;list-style:none}.lesson-toc a,.toc-inline a{border-left:2px solid var(--line);color:var(--muted);padding:6px 0 6px 14px;font-size:12.5px;line-height:1.5;transition:color .15s,border-color .15s;display:block}.lesson-toc a:hover,.toc-inline a:hover{color:var(--ink)}.lesson-toc a.active,.toc-inline a.active{border-left-color:var(--primary);color:var(--navy);font-weight:600}.toc-title{font:500 11px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--subtle);margin-bottom:10px}.toc-inline{border:1px solid var(--line);border-radius:var(--r-md);background:var(--soft);margin:0 0 24px;padding:12px 16px}.toc-inline>summary{cursor:pointer;color:var(--ink);font-size:13px;font-weight:600}.toc-inline[open]>summary{margin-bottom:10px}.markdown h2{scroll-margin-top:76px}@media (min-width:1360px){.focus-content:has(.with-toc){max-width:1520px}.lesson-layout.with-toc{grid-template-columns:200px minmax(0,1fr) 330px}.lesson-toc{max-height:calc(100vh - 110px);padding-top:8px;display:block;position:sticky;top:84px;overflow:auto}.with-toc .toc-inline{display:none}}.goal-dock{display:none}.auth-page{grid-template-columns:1fr 1fr;min-height:100vh;display:grid}.auth-story{border-right:1px solid var(--line);background:var(--hero-bg);color:var(--hero-ink);flex-direction:column;justify-content:space-between;padding:40px 56px;display:flex;position:relative;overflow:hidden}.auth-story:before{content:"";pointer-events:none;background-image:radial-gradient(#ffffff14 1px,#0000 1px);background-size:22px 22px;position:absolute;inset:0;-webkit-mask-image:radial-gradient(70% 60% at 30% 40%,#000,#0000);mask-image:radial-gradient(70% 60% at 30% 40%,#000,#0000)}.auth-story>*{position:relative}.auth-story .brand{color:#fff}.auth-story .brand-caption{color:var(--hero-muted)}.auth-story .eyebrow{color:#9cc0ff}.auth-story h1{color:#fff;letter-spacing:-.025em;margin:16px 0 22px;font-size:42px;line-height:1.25}.auth-story p{color:var(--hero-muted);font-size:15px;line-height:1.8}.auth-story .micro-copy{color:var(--hero-muted)}.auth-terminal{border-radius:var(--r-md);background:var(--term-bg);max-width:460px;box-shadow:inset 0 1px 0 #ffffff14,var(--shadow-lg);color:var(--term-ink);font:13px/2.4 var(--mono);border:1px solid #ffffff1f;margin-top:40px;padding:20px 24px}.auth-terminal span{color:var(--term-prompt)}.auth-form{padding:36px 56px}.auth-toolbar{justify-content:space-between;align-items:center;gap:16px;display:flex}.auth-toolbar .back-link{margin:0}.auth-mobile-brand{display:none}.auth-form-inner{max-width:380px;margin:11vh auto 40px}.auth-form-inner h2{margin:10px 0;font-size:30px}.auth-form-inner>p{color:var(--muted);margin-bottom:22px;font-size:14px}.auth-form-inner label{margin:20px 0}.auth-form-inner form+.text-button{margin-top:16px}.lesson-login-notice{margin-top:18px}.auth-divider{color:var(--subtle);align-items:center;gap:12px;margin:22px 0;font-size:12px;display:flex}.auth-divider:before,.auth-divider:after{content:"";background:var(--line);flex:1;height:1px}.auth-switch{text-align:center;margin-top:24px!important;font-size:13px!important}.email-confirmation{color:var(--muted);font-size:13px;line-height:1.8}.email-confirmation p{margin:16px 0}.email-confirmation strong{color:var(--ink);overflow-wrap:anywhere}.confirmation-icon{background:linear-gradient(135deg,var(--primary),var(--violet));color:#fff;border-radius:16px;place-items:center;width:56px;height:56px;margin:22px 0;font-size:26px;display:grid;box-shadow:0 12px 30px -10px #3d6ef0b3}.email-confirmation .button{margin:6px 0}.email-confirmation>.change-email{text-align:center;width:100%;margin:16px 0 0;display:block}.resend-link{margin-top:16px;display:block}.setup-page{max-width:700px;margin:80px auto;padding:30px}.setup-page p{margin:20px 0}.toaster{z-index:70;pointer-events:none;flex-direction:column;align-items:flex-end;gap:10px;display:flex;position:fixed;bottom:20px;right:20px}.toast{border:1px solid var(--line-strong);border-radius:var(--r-md);background:color-mix(in srgb,var(--card-solid) 88%,transparent);max-width:min(420px,100vw - 32px);box-shadow:var(--highlight),var(--shadow-lg);-webkit-backdrop-filter:blur(16px)saturate(160%);backdrop-filter:blur(16px)saturate(160%);color:var(--ink);pointer-events:auto;animation:toast-in .35s var(--ease-spring) both;align-items:center;gap:12px;padding:12px 12px 12px 14px;font-size:13px;display:flex}.toast.leaving{animation:.22s ease-in both toast-out}.toast-icon{background:var(--green);width:24px;height:24px;color:var(--on-green);border-radius:50%;flex-shrink:0;place-items:center;display:grid}.toast.error .toast-icon{background:var(--danger);color:#fff}.toast.info .toast-icon{background:linear-gradient(135deg,var(--primary),var(--violet));color:#fff}.toast-message{flex:1;line-height:1.5}.toast-close{width:26px;height:26px;color:var(--subtle);background:0 0;border:0;border-radius:8px;place-items:center;padding:0;display:grid}.toast-close:hover{background:var(--hover);color:var(--ink)}@keyframes toast-in{0%{opacity:0;transform:translateY(12px)scale(.96)}}@keyframes toast-out{to{opacity:0;transform:translate(24px)}}.sk{background:linear-gradient(90deg,var(--soft),var(--hover) 50%,var(--soft));background-size:200% 100%;border-radius:7px;max-width:100%;margin:10px 0;animation:1.4s linear infinite shimmer;display:block}.sk-ring{border-radius:50%;flex-shrink:0;width:112px;height:112px;margin:0}.sk-code{border-radius:var(--r-md);height:120px}.skeleton-hero .sk{background-image:linear-gradient(90deg,#ffffff12,#ffffff24 50%,#ffffff12)}.loading-page :is(.bento>*,.lesson-layout>*,.page-heading,.lesson-heading){animation:none}@keyframes shimmer{to{background-position:-200% 0}}@keyframes pulse{50%{opacity:.55}}@keyframes rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}:is(.page-heading,.lesson-heading,.bento>*,.stage-grid>*,.stage-detail,.lesson-layout>*,.server-layout>*){animation:rise .6s var(--ease-out) both}:is(.bento,.stage-grid,.lesson-layout,.server-layout)>:nth-child(2){animation-delay:50ms}:is(.bento,.stage-grid,.lesson-layout,.server-layout)>:nth-child(3){animation-delay:.1s}:is(.bento,.stage-grid)>:nth-child(4){animation-delay:.15s}.bento>:nth-child(5),.stage-detail{animation-delay:.2s}::view-transition-old(root){mix-blend-mode:normal;animation:none}::view-transition-new(root){mix-blend-mode:normal;animation:none}::view-transition-new(root){animation:.6s cubic-bezier(.4,0,.2,1) theme-reveal}@keyframes theme-reveal{0%{clip-path:circle(0 at var(--vt-x,50%) var(--vt-y,0))}to{clip-path:circle(150vmax at var(--vt-x,50%) var(--vt-y,0))}}@keyframes drift{0%{transform:none}50%{transform:translate(3%,2%)scale(1.06)}to{transform:translate(-3%,1%)scale(1.03)}}@property --beam{syntax:"<angle>";inherits:false;initial-value:0deg}.focus-card>.beam{z-index:1;border-radius:inherit;pointer-events:none;background:conic-gradient(from var(--beam),transparent 0 72%,#8ab4ff 84%,#c4b5fd 92%,transparent);-webkit-mask-composite:xor;padding:1px;animation:7s linear infinite beam;position:absolute;inset:0;-webkit-mask-image:linear-gradient(#000 0 0),linear-gradient(#000 0 0);-webkit-mask-position:0 0,0 0;-webkit-mask-size:auto,auto;-webkit-mask-repeat:repeat,repeat;-webkit-mask-clip:content-box,border-box;-webkit-mask-origin:content-box,border-box;-webkit-mask-composite:xor;mask-composite:exclude;-webkit-mask-source-type:auto,auto;mask-mode:match-source,match-source}@keyframes beam{to{--beam:360deg}}.meter span{animation:fill-x 1.1s var(--ease-out) .2s both}.progress-ring-value{animation:ring-draw 1.3s var(--ease-out) .15s both}.focus-steps li,.milestone-track li{transform-origin:0;animation:grow-x .5s var(--ease-out) both;animation-delay:calc(.25s + var(--i,0) * 60ms)}@keyframes fill-x{0%{width:0}}@keyframes ring-draw{0%{stroke-dashoffset:263.9px}}@keyframes grow-x{0%{transform:scaleX(0)}}.task-item:is(.passed,.failed) .task-status{animation:pop .5s var(--ease-spring) both;animation-delay:calc(var(--i,0) * 90ms)}.passed .task-status path{stroke-dasharray:22;animation:draw .45s var(--ease-out) both;animation-delay:calc(.15s + var(--i,0) * 90ms)}.result-summary{animation:rise .5s var(--ease-out) both}.result-summary.complete{animation:rise .5s var(--ease-out) both,glow 1.6s ease-out .3s}.copy-code-button.copied svg{animation:pop .4s var(--ease-spring)}@keyframes pop{0%{opacity:0;transform:scale(.3)}}@keyframes draw{0%{stroke-dashoffset:22px}}@keyframes glow{0%{box-shadow:inset 0 0 0 1px var(--success-line),0 0 0 0 #4ade8066}to{box-shadow:inset 0 0 0 1px var(--success-line),0 0 0 14px #4ade8000}}.confetti{z-index:60;pointer-events:none;position:fixed;inset:0;overflow:hidden}.confetti i{border-radius:2px;width:8px;height:12px;position:absolute}.type-line{width:calc(var(--chars) * 1ch);white-space:nowrap;animation:type calc(var(--chars) * 55ms) steps(var(--chars)) var(--delay,.4s) both;overflow:hidden}.type-line:last-child:after{content:"";vertical-align:-.2em;background:var(--term-prompt);width:.6ch;height:1.1em;margin-left:.4ch;animation:1.1s step-end infinite blink;display:inline-block}@keyframes type{0%{width:0}}@keyframes blink{50%{opacity:0}}@supports (animation-timeline:view()){.lesson-row,.focus-content .markdown>*{animation:linear both reveal;animation-timeline:view();animation-range:entry entry 30%}.focus-bar:after{content:"";background:linear-gradient(90deg,var(--primary),var(--violet),var(--cyan));transform-origin:0;height:2px;animation:linear both read;animation-timeline:scroll(root);position:absolute;bottom:-1px;left:0;right:0;transform:scaleX(0)}}@keyframes reveal{0%{opacity:0;transform:translateY(14px)}}@keyframes read{0%{transform:scaleX(0)}to{transform:scaleX(1)}}@media (hover:hover) and (pointer:fine){.button:hover{filter:brightness(1.08);transform:translateY(-1px)}.button:hover svg{transform:translate(2px)}.stage-card:hover{border-color:var(--line-strong);transform:translateY(-2px)}.stage-card:hover .stage-card-meta svg{transform:translate(3px)}.lesson-row:hover .arrow{color:var(--ink);transform:translate(3px)}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}.beam{display:none}}@media (max-width:1200px){.stage-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stage-card h3{min-height:0}}@media (max-width:1150px){.sidebar{width:216px}.main-wrap{width:calc(100% - 216px);margin-left:216px}.page-content{padding:30px 24px}.topbar{padding:0 24px}.bento{grid-template-columns:repeat(2,minmax(0,1fr))}.focus-card{grid-row:auto}.up-next,.milestone-tile{grid-column:span 2}.lesson-layout{grid-template-columns:minmax(0,1fr) 300px;gap:16px}.server-layout{grid-template-columns:1fr}.auth-story{padding:32px}.auth-story h1{font-size:34px}.auth-form{padding:32px}}@media (max-width:850px){.app-shell{display:block;position:relative}.sidebar{border-right:0;border-bottom:1px solid var(--line);-webkit-backdrop-filter:none;backdrop-filter:none;flex-direction:row;align-items:center;width:100%;height:60px;padding:0 16px;position:static}.brand{font-size:19px}.brand-caption,.nav-label,.sidebar-bottom,.topbar-label{display:none}.brand-logo{width:32px;height:32px}.main-wrap{width:100%;padding-bottom:calc(96px + env(safe-area-inset-bottom));margin:0}.topbar{-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border:0;height:60px;padding:0 16px;position:absolute;top:0;right:0}.sidebar nav{z-index:20;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));border:1px solid var(--line-strong);background:color-mix(in srgb,var(--card-solid) 72%,transparent);box-shadow:var(--highlight),var(--shadow-lg);-webkit-backdrop-filter:blur(20px)saturate(180%);backdrop-filter:blur(20px)saturate(180%);border-radius:22px;flex-direction:row;gap:4px;padding:6px;display:flex;position:fixed}.sidebar nav .nav-item{text-align:center;white-space:nowrap;min-width:0;height:auto;transition:transform .2s var(--ease-spring),color .15s;border-radius:16px;flex-direction:column;flex:1;justify-content:center;gap:3px;margin:0;padding:8px 4px;font-size:10.5px}.sidebar nav .nav-item:active{transform:scale(.92)}.sidebar nav .nav-item.active{color:var(--accent-text)}.nav-indicator{height:auto;width:calc((100% - 12px - (var(--n) - 1) * 4px) / var(--n));box-shadow:none;transform:translateX(calc(var(--i) * (100% + 4px)));border-radius:16px;inset:6px auto 6px 6px}.page-content{padding:24px 16px}.page-heading{align-items:flex-start}.page-heading>.badge{display:none}h1{font-size:26px}.bento{grid-template-columns:1fr}.focus-card,.up-next,.milestone-tile{grid-column:auto}.focus-card{grid-template-columns:1fr;gap:22px;padding:24px}.focus-card h2{font-size:26px}.lesson-layout{grid-template-columns:1fr}.check-panel{position:static}.lesson-info p,.arrow{display:none}.lesson-row{gap:12px;padding:14px}.focus-bar{gap:10px;padding:0 16px}.focus-bar-context{display:none}.focus-bar .account{margin-left:auto}.focus-content .markdown{padding:22px 18px}.lesson-heading h1{font-size:28px}.focus-content{padding-bottom:calc(96px + env(safe-area-inset-bottom))}.check-panel .panel{scroll-margin-top:72px}.goal-dock{z-index:20;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));border:1px solid var(--line-strong);background:color-mix(in srgb,var(--card-solid) 78%,transparent);box-shadow:var(--highlight),var(--shadow-lg);-webkit-backdrop-filter:blur(20px)saturate(180%);backdrop-filter:blur(20px)saturate(180%);animation:rise .4s var(--ease-out) both;border-radius:20px;align-items:center;gap:12px;padding:8px 8px 8px 16px;display:flex;position:fixed}.goal-dock-steps{gap:4px;margin:0;padding:0;list-style:none;display:flex}.goal-dock-steps li{background:var(--line-strong);border-radius:3px;width:12px;height:6px;transition:background .3s}.goal-dock-steps li.passed{background:var(--green)}.goal-dock-steps li.failed{background:var(--danger)}.goal-dock-text{min-width:0;color:var(--ink);white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:12.5px;font-weight:500;overflow:hidden}.auth-page{grid-template-columns:1fr}.auth-story{display:none}.auth-form{padding:24px 20px}.auth-form-inner{margin-top:8vh}.auth-mobile-brand{margin-bottom:24px;display:block}.toaster{left:16px;right:16px;bottom:calc(88px + env(safe-area-inset-bottom));align-items:stretch}.toast{max-width:none}.pair-form{grid-template-columns:1fr}.device-seen,.device-actions{margin-left:0}}@media (max-width:650px){.stage-detail{padding:20px}.stage-detail-heading{flex-direction:column;align-items:flex-start;gap:14px}.stage-completion{text-align:left;width:100%}.stage-outcomes{flex-direction:column;align-items:flex-start}.learning-roadmap>.section-heading{flex-direction:column;align-items:flex-start;gap:4px}}@media (max-width:500px){.account{gap:8px}.account-name,.account>.text-button,.theme-toggle span,.lesson-meta>span:first-child{display:none}.lesson-navigation{flex-direction:column;align-items:stretch;gap:16px}.lesson-navigation .button{width:100%}.command-help>summary,.copy-code-button{width:32px;height:32px}.command-block .copy-code-button{right:46px}.code-head{height:42px}.page-footer{flex-direction:column}}@media (max-width:420px){.stage-grid{gap:10px}.stage-card{padding:14px 12px}.stage-card-top{flex-direction:column;align-items:flex-start;gap:9px;margin-bottom:12px}.stage-card h3{font-size:13px}.stage-card p{margin-bottom:14px;font-size:11.5px}.stage-card-meta{flex-wrap:wrap;font-size:10.5px}.path-group-heading>.badge{display:none}}
