@font-face{font-family:Plus Jakarta Sans Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/plus-jakarta-sans-cyrillic-ext-wght-normal-BvLRN1El.woff2) format("woff2-variations");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Plus Jakarta Sans Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/plus-jakarta-sans-vietnamese-wght-normal-Bnh6xcKr.woff2) format("woff2-variations");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Plus Jakarta Sans Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/plus-jakarta-sans-latin-ext-wght-normal-Ch-K9LVU.woff2) format("woff2-variations");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Plus Jakarta Sans Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/plus-jakarta-sans-latin-wght-normal-BD2oGHtS.woff2) format("woff2-variations");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}/*! tailwindcss v4.3.3 | MIT License | https://tailwindcss.com */@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-border-style:solid;--tw-outline-style:solid;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:root,:host{--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--ease-out:cubic-bezier(0, 0, .2, 1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;-moz-tab-size:4;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab,red,red)){::placeholder{color:color-mix(in oklab,currentcolor 50%,transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){-webkit-appearance:button;-moz-appearance:button;appearance:button}::file-selector-button{-webkit-appearance:button;-moz-appearance:button;appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components{:root{--bg:#ebeff4;--surface:#fff;--surface-muted:#f3f6fa;--border:#e3e8ef;--border-strong:#d5dde8;--control-border:#8494aa;--text:#0f172a;--text-2:#334155;--text-3:#475569;--text-4:#566579;--accent:#2457f5;--accent-hover:#1b46d4;--accent-soft:#d6e2ff;--accent-text:#1e3a8a;--accent-ring:#2457f547;--success:#166534;--success-soft:#cdf3dd;--warning:#713f12;--warning-soft:#fde9ae;--danger:#b42318;--danger-soft:#fde7e4;--danger-border:#f1c0bb;--danger-strong:#7a271a;--success-border:#8fd9ae;--neutral-soft:#e2e8f0;--on-accent:#fff;--tile-blue:#d6e2ff;--tile-blue-t:#1e3a8a;--tile-mint:#cdf3dd;--tile-mint-t:#14532d;--tile-cyan:#cfeff7;--tile-cyan-t:#155e75;--tile-amber:#fde9ae;--tile-amber-t:#713f12;--tile-orange:#ffd9c2;--tile-orange-t:#7c2d12;--tile-lime:#e2f4b5;--tile-lime-t:#365314;--tile-lime-seg:#b7de5c;--chip:#fff;--info:#155e75;--sidebar-bg:var(--surface);--sidebar-text:#334155;--sidebar-text-muted:#475569;--sidebar-hover-bg:var(--surface-muted);--sidebar-active-bg:var(--tile-blue);--sidebar-caption:#566579;--sidebar-border:var(--border);--backdrop:#0f172a73;--radius:20px;--radius-control:12px;--radius-inner:10px;--radius-row:16px;--shadow:none;--shadow-pop:0 12px 32px #0f172a29;--font-ui:"Plus Jakarta Sans Variable", "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;--font-editorial:var(--font-ui);--font-mono:ui-monospace, "SF Mono", Consolas, monospace;--type-display:clamp(26px, 2.2vw, 30px);--type-title:20px;--type-section:18px;--type-item:15px;--type-reading:16px;--type-body:14px;--type-small:13px;--type-caption:12px;--type-overline:11px;--weight-regular:400;--weight-medium:500;--weight-semibold:600;--weight-bold:700;--weight-heavy:800;--target-min:24px;--target-touch:44px;--gap:12px;color-scheme:light;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-7:32px;--sidebar-width:248px;--content-max:none;font-family:var(--font-ui);color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;font-size:14px;line-height:1.5}*{box-sizing:border-box}body{background:var(--bg);min-width:320px;min-height:100vh;margin:0}button,input,select,textarea{font:inherit;color:inherit}a{color:inherit}h1,h2,h3,h4{color:var(--text);margin:0}p{margin:0}b,strong{font-weight:var(--weight-bold)}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.app-frame{grid-template-columns:var(--sidebar-width) minmax(0,1fr);min-height:100vh;display:grid}.sidebar{background:var(--sidebar-bg);height:100vh;color:var(--on-accent);flex-direction:column;padding:0 16px 20px;display:flex;position:sticky;top:0;overflow-y:auto}.brand{height:64px;color:var(--text);font-weight:var(--weight-bold);letter-spacing:-.01em;align-items:center;gap:10px;padding:0 8px;font-size:15px;text-decoration:none;display:flex}.brand small{color:var(--text-3);font-size:var(--type-overline);font-weight:var(--weight-medium);letter-spacing:0;margin-top:1px;display:block}.brand-mark{background:var(--accent);width:32px;height:32px;color:var(--on-accent);border-radius:var(--radius-control);font-weight:var(--weight-bold);flex:none;place-items:center;font-size:15px;display:grid}.sidebar-divider{background:var(--sidebar-border);height:1px;margin:0 0 20px}.nav-group+.nav-group{margin-top:var(--space-4);padding-top:var(--space-4);border-top:1px solid var(--sidebar-border)}.nav-caption{color:var(--sidebar-caption);font-size:var(--type-overline);font-weight:var(--weight-semibold);letter-spacing:.08em;text-transform:uppercase;margin:0 0 6px;padding:0 12px}.side-nav{gap:2px;display:grid}.nav-link{color:var(--sidebar-text);border-radius:var(--radius-control);font-size:var(--type-body);font-weight:var(--weight-medium);align-items:center;gap:10px;padding:11px 12px;text-decoration:none;display:flex}.nav-dot{display:none}.nav-count{background:var(--warning-soft);min-width:22px;color:var(--warning);font-size:12px;font-weight:var(--weight-semibold);text-align:center;border-radius:99px;margin-left:auto;padding:1px 7px}.sidebar-bottom{border-top:1px solid var(--sidebar-border);margin-top:auto;padding-top:16px}.profile-chip{align-items:center;gap:10px;min-width:0;padding:6px 8px;display:flex}.profile-chip strong,.profile-chip small{text-overflow:ellipsis;white-space:nowrap;max-width:170px;display:block;overflow:hidden}.profile-chip small{color:var(--sidebar-text-muted);font-size:12px}.avatar{background:var(--accent-soft);width:32px;height:32px;color:var(--accent-text);font-weight:var(--weight-semibold);border-radius:50%;flex:none;place-items:center;font-size:13px;display:grid}.avatar-small{width:28px;height:28px;font-size:12px}.button.signout{justify-content:flex-start;width:100%;margin-top:4px}.main-column{flex-direction:column;min-width:0;display:flex}.topbar{z-index:5;background:var(--surface);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:16px;height:64px;padding:0 32px;display:flex;position:sticky;top:0}.topbar-title{color:var(--text-3);font-size:14px}.topbar-right{color:var(--text-2);align-items:center;gap:10px;font-size:13px;font-weight:500;display:flex}.icon-button.menu-toggle{display:none}.content-area{width:100%;max-width:var(--content-max);padding:var(--space-7) var(--space-7) 56px;flex:1;margin:0 auto}.app-footer{color:var(--text-4);border-top:1px solid var(--border);padding:16px 24px;font-size:12px}.app-footer span{margin:0 6px}.content-width{max-width:1248px;margin:0 auto}.global-alert{background:var(--danger-soft);border-bottom:1px solid var(--danger-border);color:var(--danger)}.global-alert .content-width{justify-content:space-between;align-items:center;gap:16px;padding:10px 24px;font-size:13px;display:flex}.skip-link{z-index:20;background:var(--surface);border-radius:var(--radius-control);box-shadow:var(--shadow-pop);padding:10px 14px;position:absolute;top:8px;left:8px;transform:translateY(-160%)}.skip-link:focus{transform:translateY(0)}.page-heading{justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:24px;display:flex}.page-heading>div:first-child{min-width:0}.page-heading h1{font-family:var(--font-editorial);font-size:var(--type-display);letter-spacing:-.025em;overflow-wrap:anywhere;margin-top:4px;font-weight:500;line-height:1.2}.page-heading-action{flex-wrap:wrap;flex:none;gap:8px;display:flex}.eyebrow{font-size:var(--type-caption);color:var(--text-3);font-weight:var(--weight-semibold);letter-spacing:.04em;text-transform:uppercase}.page-description{color:var(--text-3);font-size:var(--type-body);max-width:680px;margin-top:6px}.section-title{font-size:var(--type-section);font-weight:var(--weight-semibold)}.section-head{justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;display:flex}.muted{color:var(--text-3)}.small{font-size:13px}.mono{font-family:var(--font-mono);font-size:var(--type-caption)}.breadcrumb{color:var(--text-3);flex-wrap:wrap;align-items:center;gap:6px;margin-bottom:12px;font-size:13px;display:flex}.breadcrumb a{color:var(--text-2);padding-block:2px;text-decoration:none;display:inline-block}.breadcrumb a:hover{color:var(--accent);text-decoration:underline}.card{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);padding:var(--space-5);box-shadow:var(--shadow);min-width:0}.card h2{font-size:var(--type-section);font-weight:var(--weight-semibold);margin:0 0 12px}.card h3{font-size:var(--type-body);font-weight:var(--weight-semibold);margin:0 0 8px}.card-flush{padding:0;overflow:hidden}.section-stack{gap:24px;display:grid}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;display:grid}.layout-main-side{grid-template-columns:minmax(0,1fr) 320px;align-items:start;gap:24px;display:grid}.card-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,320px),1fr));gap:16px;display:grid}.stack{gap:12px;display:grid}.stack-tight{gap:6px;display:grid}.button-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.card-topline{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.card-title{font-weight:var(--weight-semibold);font-size:var(--type-item);color:var(--text)}.card-copy{color:var(--text-3);margin-top:2px;font-size:13px}.meta-row{color:var(--text-3);flex-wrap:wrap;align-items:center;gap:4px 16px;font-size:13px;display:flex}.meta-row strong{color:var(--text-2);font-weight:var(--weight-semibold)}.divider{background:var(--border);height:1px;margin:4px 0}.stat-row{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);grid-template-columns:repeat(auto-fit,minmax(150px,1fr));margin-bottom:24px;display:grid}.stat{border-left:1px solid var(--border);color:inherit;padding:16px 20px;text-decoration:none}.stat:first-child{border-left:0}.stat-label{color:var(--text-3);font-size:13px}.stat-value{font-size:24px;font-weight:var(--weight-bold);letter-spacing:-.02em;font-variant-numeric:tabular-nums;margin-top:4px}.stat-note{color:var(--text-3);margin-top:2px;font-size:12px}.button{border-radius:var(--radius-control);cursor:pointer;max-width:100%;min-height:40px;font-size:var(--type-body);font-weight:var(--weight-semibold);white-space:normal;text-align:center;border:1px solid #0000;justify-content:center;align-items:center;gap:6px;padding:7px 14px;text-decoration:none;display:inline-flex}.button:disabled{opacity:.55;cursor:not-allowed}.button[aria-busy=true]{cursor:progress}.button .spinner{opacity:.8;border-color:#0000 currentColor currentColor;flex:none;width:14px;height:14px}.button-adornment{flex:none;display:inline-flex}.button-primary{background:var(--accent);color:var(--on-accent)}.button-primary:hover:not(:disabled){background:var(--accent-hover)}.button-primary:disabled{opacity:1;background:var(--neutral-soft);color:var(--text-3)}.button-primary[aria-busy=true]{background:var(--accent);color:var(--on-accent);opacity:.8}.button-secondary{border-color:var(--border-strong);background:var(--surface);color:var(--text-2)}.button-secondary:hover:not(:disabled){background:var(--surface-muted);color:var(--text)}.button-danger{background:var(--surface);border-color:var(--danger-border);color:var(--danger)}.button-danger:hover:not(:disabled){background:var(--danger-soft)}.button-quiet{color:var(--text-2);background:0 0}.button-quiet:hover:not(:disabled){background:var(--surface-muted);color:var(--text)}.button-small{min-height:34px;font-size:var(--type-small);padding:4px 10px}.button-wide{width:100%;min-height:40px}.link-button{min-width:var(--target-min);min-height:var(--target-min);color:var(--accent);font-weight:var(--weight-semibold);font-size:var(--type-small);cursor:pointer;background:0 0;border:0;justify-content:center;align-items:center;padding:0;display:inline-flex}.link-button:hover{text-decoration:underline}.text-link{color:var(--accent);font-size:var(--type-small);font-weight:var(--weight-semibold);text-decoration:none}.text-link:hover{text-decoration:underline}.icon-button{border:1px solid var(--border-strong);border-radius:var(--radius-control);background:var(--surface);cursor:pointer;place-items:center;width:36px;height:36px;display:inline-grid}.form-stack{gap:14px;display:grid}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 16px;display:grid}.field{align-content:start;gap:6px;min-width:0;display:grid}.field-full{grid-column:1/-1}input,select,textarea{border:1px solid var(--control-border);border-radius:var(--radius-control);background:var(--surface);width:100%;min-height:38px;color:var(--text);padding:7px 11px;font-size:14px}input[type=checkbox],input[type=radio]{width:auto;min-height:0}input[type=file]{padding:6px}textarea{resize:vertical;min-height:96px;line-height:1.55}input::placeholder,textarea::placeholder{color:var(--text-4)}input:focus,input:focus-within,select:focus,textarea:focus{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent);outline:3px solid var(--accent-ring);outline-offset:0}input[aria-invalid=true],textarea[aria-invalid=true],select[aria-invalid=true]{border-color:var(--danger)}.field-error{color:var(--danger);font-size:var(--type-caption)}.form-help,.field-hint{color:var(--text-3);font-size:var(--type-caption)}.form-section{border-top:1px solid var(--border);margin-top:4px;padding-top:16px}.checkbox-row{min-height:var(--target-min);color:var(--text-2);font-size:var(--type-body);align-items:flex-start;gap:8px;display:flex}.checkbox-row input{width:16px;height:16px;accent-color:var(--accent);margin:2px 0 0}.inline-form{align-items:end;gap:10px;display:flex}.inline-form>.field{flex:1}.toolbar{flex-wrap:wrap;align-items:end;gap:10px;margin-bottom:16px;display:flex}.toolbar .field{min-width:180px}.toolbar .field-grow{flex:1;min-width:220px}.error-notice{border:1px solid var(--danger-border);border-radius:var(--radius-control);color:var(--danger);background:var(--danger-soft);justify-content:space-between;align-items:center;gap:16px;padding:12px 14px;display:flex}.error-notice strong{font-size:var(--type-body);font-weight:var(--weight-semibold)}.error-notice p{font-size:var(--type-small);color:var(--danger-strong);margin-top:2px}.notice{border-radius:var(--radius-control);background:var(--accent-soft);color:var(--accent-text);padding:12px 14px;font-size:13px}.state-card{min-height:112px;color:var(--text-3);justify-content:center;align-items:center;gap:10px;padding:24px;font-size:14px;display:flex}.card>.state-card,.item-card .state-card{min-height:80px;padding:16px}.empty-state{text-align:center;border:1px dashed var(--border-strong);border-radius:var(--radius);background:var(--surface);align-content:center;gap:4px;display:grid}.card .empty-state{background:0 0;border:0}.empty-state strong{color:var(--text-2);font-size:var(--type-body);font-weight:var(--weight-semibold)}.empty-state p{max-width:440px;color:var(--text-3);margin:0 auto;font-size:13px}.spinner{border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:16px;height:16px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.toast-region{z-index:50;gap:8px;display:grid;position:fixed;bottom:20px;right:20px}.toast{border-radius:var(--radius-control);background:var(--text);min-width:260px;max-width:380px;color:var(--on-accent);font-size:var(--type-small);box-shadow:var(--shadow-pop);padding:12px 14px}.toast-error{background:var(--danger)}.status-pill{font-size:var(--type-caption);font-weight:var(--weight-semibold);white-space:nowrap;border-radius:99px;align-items:center;gap:5px;padding:2px 9px;line-height:20px;display:inline-flex}.status-pill:before{content:"";opacity:.8;background:currentColor;border-radius:50%;width:6px;height:6px}.status-red{color:var(--danger);background:var(--danger-soft)}.status-slate{color:var(--text-3);background:var(--neutral-soft)}.locked-box{border-radius:var(--radius-control);background:var(--surface-muted);border:1px solid var(--border);color:var(--text-2);align-items:flex-start;gap:8px;margin-top:8px;padding:8px 12px;font-size:13px;display:flex}.final-grade{font-size:32px;font-weight:var(--weight-bold);letter-spacing:-.02em;font-variant-numeric:tabular-nums}.progress-track{background:var(--neutral-soft);border-radius:99px;height:6px;overflow:hidden}.progress-fill{border-radius:inherit;background:var(--accent);height:100%}.progress-complete .progress-fill{background:var(--success)}.progress-label{color:var(--text-3);justify-content:space-between;gap:12px;margin-top:6px;font-size:12px;display:flex}.progress-label strong{color:var(--text-2);font-variant-numeric:tabular-nums}.table-wrap{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);overflow-x:auto}.card .table-wrap{border-radius:var(--radius-control)}.card-flush .table-wrap{border:0;border-top:1px solid var(--border);border-radius:0;margin-top:12px}table{border-collapse:collapse;text-align:left;width:100%;font-size:14px}th,td{border-bottom:1px solid var(--border);vertical-align:middle;padding:10px 14px}th{color:var(--text-3);background:var(--surface-muted);font-weight:var(--weight-semibold);font-size:var(--type-caption);text-transform:uppercase;letter-spacing:.03em;white-space:nowrap;position:sticky;top:0}td{color:var(--text-2)}td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}tbody tr:last-child td{border-bottom:0}.cell-title{color:var(--text);font-weight:var(--weight-semibold)}.cell-sub{color:var(--text-3);font-size:var(--type-caption);margin-top:1px;display:block}.list{display:grid}.list-row,.dashboard-row{border-top:1px solid var(--border);color:inherit;justify-content:space-between;align-items:center;gap:12px;padding:12px 0;text-decoration:none;display:flex}.list-row:first-child,.dashboard-row:first-child{border-top:0}a.list-row:hover .cell-title,a.dashboard-row:hover strong{color:var(--accent)}.dashboard-row strong{font-weight:var(--weight-semibold);display:block}.dashboard-row small{color:var(--text-3);margin-top:1px;font-size:12px;display:block}.pagination{justify-content:space-between;align-items:center;gap:16px;margin-top:4px;padding-top:14px;display:flex}.pagination-size,.pagination-actions{color:var(--text-3);align-items:center;gap:8px;font-size:13px;display:flex}.pagination select{width:auto;min-height:30px;padding:3px 8px;font-size:13px}.module-row{border-top:1px solid var(--border);grid-template-columns:32px minmax(0,1fr) auto;align-items:center;gap:14px;padding:14px 0;display:grid}.module-row:first-child{border-top:0;padding-top:4px}.module-number{background:var(--neutral-soft);width:28px;height:28px;color:var(--text-2);font-weight:var(--weight-semibold);font-size:var(--type-small);border-radius:50%;place-items:center;display:grid}.module-row h3{font-size:var(--type-item);font-weight:var(--weight-semibold)}.module-row p{color:var(--text-3);margin-top:2px;font-size:13px}.lesson-layout{grid-template-columns:280px minmax(0,1fr);align-items:start;gap:24px;display:grid}.lesson-nav{padding:8px;position:sticky;top:88px}.lesson-nav-title{color:var(--text-3);text-transform:uppercase;letter-spacing:.04em;padding:8px 10px 4px;font-size:12px;font-weight:600}.lesson-link{border-radius:var(--radius-control);color:var(--text-2);align-items:flex-start;gap:10px;padding:8px 10px;font-size:14px;text-decoration:none;display:flex}.lesson-link:hover{background:var(--surface-muted)}.master-item{border-radius:var(--radius-control);width:100%;color:var(--text-2);text-align:left;font:inherit;cursor:pointer;background:0 0;border:0;gap:2px;padding:9px 10px;font-size:14px;display:grid}.master-item strong{font-weight:var(--weight-semibold);overflow-wrap:anywhere}.master-item small{color:var(--text-3);font-size:12px}.master-item:hover{background:var(--surface-muted)}.master-item.active{background:var(--accent-soft);color:var(--accent-text)}.master-item:focus-visible{outline:3px solid var(--accent-ring);outline-offset:0}.pagination-compact{border-top:1px solid var(--border);color:var(--text-3);justify-content:space-between;gap:8px;margin-top:4px;padding:8px 2px 2px;font-size:12px}.question-list{margin:0;padding:0;list-style:none;display:grid}.question-entry{border-top:1px solid var(--border);grid-template-columns:28px minmax(0,1fr);gap:14px;padding:18px 0;display:grid}.question-entry:first-child{border-top:0;padding-top:4px}.question-body{gap:10px;min-width:0;display:grid}.question-body h3{font-size:var(--type-item);font-weight:var(--weight-semibold);overflow-wrap:anywhere;line-height:1.5}.option-list{gap:6px;margin:0;padding:0;list-style:none;display:grid}.option-list li{border:1px solid var(--border);border-radius:var(--radius-control);color:var(--text-2);align-items:center;gap:10px;padding:7px 10px;font-size:14px;display:flex}.option-list li>span:nth-child(2){overflow-wrap:anywhere;flex:1}.option-list li small{color:var(--text-3);font-size:12px}.option-list li.correct{border-color:var(--success-border);background:var(--success-soft);color:var(--text)}.option-mark{border:1.5px solid var(--border-strong);width:18px;height:18px;color:var(--on-accent);border-radius:50%;flex:none;place-items:center;font-size:11px;display:grid}.option-list li.correct .option-mark{background:var(--success);border-color:var(--success)}.lesson-link.active{background:var(--accent-soft);color:var(--accent-text);font-weight:var(--weight-semibold)}.lesson-link .lesson-check{border:1.5px solid var(--border-strong);width:18px;height:18px;color:var(--on-accent);border-radius:50%;flex:none;place-items:center;margin-top:1px;font-size:11px;display:grid}.lesson-link .lesson-check.done{background:var(--success);border-color:var(--success)}.lesson-link small{color:var(--text-3);font-size:12px;font-weight:400;display:block}.item-list{gap:16px;display:grid}.item-card{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);padding:20px;scroll-margin-top:88px}.item-card h3{font-weight:var(--weight-semibold)}.item-type{color:var(--text-3);text-transform:uppercase;letter-spacing:.04em;font-size:12px;font-weight:600}.plain-content{white-space:pre-wrap;color:var(--text-2);overflow-wrap:anywhere;font-size:15px;line-height:1.7}.rich-content{color:var(--text-2);overflow-wrap:anywhere;max-width:72ch;font-size:15px;line-height:1.7}.rich-content h2{margin:0 0 8px;font-size:18px}.rich-content h3{margin:16px 0 6px;font-size:16px}.rich-content p{margin:0 0 12px}.rich-content ul,.rich-content ol{margin:0 0 12px;padding-left:1.4em}.rich-content ul{list-style:outside}.rich-content ol{list-style:decimal}.rich-content li{margin:2px 0}.rich-content h2,.rich-content h3{font-weight:var(--weight-semibold);color:var(--text)}.rich-content strong{color:var(--text);font-weight:var(--weight-bold)}.rich-content a{color:var(--accent);text-decoration:underline}.video-frame{aspect-ratio:16/9;border-radius:var(--radius-control);background:var(--text);border:0;width:100%}.file-row{border:1px solid var(--border);border-radius:var(--radius-control);background:var(--surface-muted);justify-content:space-between;align-items:center;gap:12px;padding:12px 14px;display:flex}.file-row strong{font-weight:var(--weight-semibold);display:block}.quiz-card{max-width:820px}.quiz-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:12px;padding-bottom:12px;display:flex}.question-block{border-top:1px solid var(--border);padding:18px 0}.question-block:first-child{border-top:0}.question-block h3{line-height:1.5;font-size:var(--type-item);font-weight:var(--weight-semibold);margin:0 0 12px}.question-meta{color:var(--text-3);margin-bottom:4px;font-size:12px;font-weight:500}.choice-option{border:1px solid var(--border);border-radius:var(--radius-control);cursor:pointer;background:var(--surface);align-items:flex-start;gap:10px;padding:10px 12px;font-size:14px;display:flex}.choice-option:hover{border-color:var(--border-strong)}.choice-option:has(input:checked){border-color:var(--accent);background:var(--accent-soft)}.choice-option+.choice-option{margin-top:6px}.choice-option input{width:16px;height:16px;accent-color:var(--accent);flex:none;margin:2px 0 0}.choice-correct{border-color:var(--success-border);background:var(--success-soft)}.answer-state{color:var(--text-3);font-size:12px}.timer-chip{background:var(--neutral-soft);color:var(--text-2);font-variant-numeric:tabular-nums;font-size:var(--type-small);font-weight:var(--weight-semibold);border-radius:99px;align-items:center;gap:6px;padding:4px 10px;display:inline-flex}.timer-danger{background:var(--danger-soft);color:var(--danger)}.questions-list,.version-list{gap:8px;display:grid}.version-entry{border:1px solid var(--border);border-radius:var(--radius-control);justify-content:space-between;align-items:center;gap:12px;padding:10px 12px;font-size:13px;display:flex}.tabs{box-shadow:inset 0 -1px 0 var(--border);scrollbar-width:none;gap:2px;margin-bottom:20px;display:flex;overflow:auto hidden}.tabs::-webkit-scrollbar{display:none}.tab{color:var(--text-3);font-size:var(--type-body);font-weight:var(--weight-semibold);cursor:pointer;white-space:nowrap;background:0 0;border:0;border-bottom:2px solid #0000;padding:10px 14px;text-decoration:none}.tab:hover{color:var(--text)}.tab.active{color:var(--accent);border-bottom-color:var(--accent)}.shortcut-card{gap:4px;text-decoration:none;display:grid}.shortcut-card:hover{border-color:var(--border-strong)}.shortcut-card h2{margin:0;font-size:15px}.shortcut-card p{color:var(--text-3);font-size:13px}.continue-card{justify-content:space-between;align-items:center;gap:16px;display:flex}.login-page{background:var(--bg);place-items:center;min-height:100vh;padding:32px 16px;display:grid}.login-panel{width:100%;max-width:400px}.login-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px}.brand-login{justify-content:center;height:auto;margin:0 0 24px;padding:0}.login-form{margin-top:20px}.privacy-note{color:var(--text-3);text-align:center;margin-top:16px;font-size:12px}.auth-footer{text-align:center;color:var(--text-3);margin-top:16px;font-size:13px}.login-aside{display:none}.auth-state{place-items:center;min-height:60vh;padding:24px;display:grid}.auth-state .card{max-width:560px}.auth-state h1{font-size:var(--type-title);margin:0 0 8px}.auth-state p{color:var(--text-3)}.resend-verification{gap:10px;margin-top:12px}.resend-section{border-top:1px solid var(--border);margin-top:24px;padding-top:18px}.resend-section h2{color:var(--text-2);margin:0;font-size:14px;font-weight:600}.dev-accounts{border:1px dashed var(--border-strong);border-radius:var(--radius-control);color:var(--text-3);margin-top:16px;padding:12px 14px;font-size:12px}.dev-accounts button{text-align:left;width:100%;color:var(--text-2);cursor:pointer;background:0 0;border:0;padding:4px 0;font-size:12px;display:block}.dev-accounts button:hover{color:var(--accent)}@media(max-width:1024px){.layout-main-side,.lesson-layout{grid-template-columns:1fr}.lesson-nav{position:static}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:860px){.app-frame{display:block}.sidebar{z-index:40;visibility:hidden;width:280px;transition:transform .18s;position:fixed;inset:0 auto 0 0;transform:translate(-100%)}.app-frame.nav-open .sidebar{visibility:visible;box-shadow:var(--shadow-pop);transform:translate(0)}.nav-backdrop{z-index:30;background:var(--backdrop);position:fixed;top:0;right:0;bottom:0;left:0}.icon-button.menu-toggle{display:inline-grid}.topbar{padding:0 16px}.topbar-user{display:none}.content-area{padding:20px 16px 40px}.app-footer{padding:14px 16px}.page-heading{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:20px}.page-heading h1{font-size:22px}.grid-2,.grid-3,.form-grid{grid-template-columns:1fr}.field-full{grid-column:auto}.card{padding:16px}.stat{border-left:0;border-top:1px solid var(--border)}.stat:first-child{border-top:0}.pagination{flex-direction:column;align-items:flex-start}.module-row{grid-template-columns:28px minmax(0,1fr)}.module-row>:last-child{grid-column:2}.inline-form{flex-direction:column;align-items:stretch}.table-stack thead{display:none}.table-stack table,.table-stack tbody,.table-stack tr,.table-stack td{width:100%;display:block}.table-stack tr{border-bottom:1px solid var(--border);padding:10px 14px}.table-stack td{border:0;padding:3px 0}.table-stack td[data-label]:before{content:attr(data-label);color:var(--text-3);text-transform:uppercase;letter-spacing:.03em;font-size:11px;display:block}}@media(prefers-reduced-motion:reduce){*,:before,:after{transition-duration:0s!important;animation-duration:0s!important}}.detail-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 20px;margin:0;display:grid}.detail-list dt{color:var(--text-3);font-size:12px}.detail-list dd{color:var(--text);font-size:var(--type-body);font-weight:var(--weight-semibold);margin:2px 0 0}.notice-row{justify-content:space-between;align-items:center;gap:16px;display:flex}.entry-controls{border-top:1px dashed var(--border);flex-wrap:wrap;align-items:center;gap:12px 16px;padding-top:10px;display:flex}.entry-points{color:var(--text-2);align-items:center;gap:8px;font-size:13px;display:flex}.entry-points input{width:84px;min-height:30px;padding:3px 8px;font-size:13px}.entry-spacer{flex:1}@media(max-width:860px){.notice-row{flex-direction:column;align-items:flex-start}.detail-list{grid-template-columns:1fr}}.search-select{position:relative}.search-select-list{z-index:15;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-control);max-height:280px;box-shadow:var(--shadow-pop);margin:0;padding:4px;list-style:none;position:absolute;top:calc(100% + 4px);left:0;right:0;overflow-y:auto}.search-select-list li{border-radius:var(--radius-inner);cursor:pointer;gap:1px;padding:8px 10px;font-size:14px;display:grid}.search-select-list li small{color:var(--text-3);font-size:12px}.search-select-list li.active{background:var(--accent-soft);color:var(--accent-text)}.search-select-list .search-select-note{cursor:default;color:var(--text-3);font-size:13px}.search-select-value{border:1px solid var(--control-border);border-radius:var(--radius-control);background:var(--surface);justify-content:space-between;align-items:center;gap:10px;min-height:36px;padding:4px 4px 4px 12px;display:flex}.pagination-range{color:var(--text-2);font-weight:var(--weight-semibold);margin-right:8px}:root{--ease-out:cubic-bezier(.2, .8, .2, 1);--motion-fast:.12s;--motion:.18s}a,button,.button,.nav-link,.tab,.lesson-link,.master-item,.list-row,.stat,.status-pill,.search-select-list li,.option-list li,.move-controls button,input,select,textarea{transition-property:color,background-color,border-color,box-shadow,opacity,transform;transition-duration:var(--motion-fast);transition-timing-function:var(--ease-out)}.button:active:not(:disabled){transform:translateY(1px)}.tab{transition-duration:var(--motion)}a.stat:hover{background:var(--surface-muted)}.progress-fill{transition:width .4s var(--ease-out)}@keyframes pop-in{0%{opacity:0;transform:translateY(-4px)scale(.98)}to{opacity:1;transform:none}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.search-select-list,.confirm-popover,.toast{animation:pop-in var(--motion) var(--ease-out)}.notice,.error-notice,.outline-detail,.item-card form,.card>form{animation:fade-in var(--motion) var(--ease-out)}input:not([type=checkbox]):not([type=radio]):not([type=file]),select{height:38px;padding-block:0;line-height:36px}select{-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23475569' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");background-position:right 10px center;background-repeat:no-repeat;background-size:14px;padding-right:32px}select:disabled,input:disabled{background-color:var(--surface-muted);color:var(--text-3);cursor:not-allowed}.pagination select{background-position:right 8px center;height:30px;padding-right:28px;line-height:28px}.entry-points input{height:30px;line-height:28px}.field-date{min-width:160px}.search-select-value{height:38px;min-height:0}.search-select-value span{white-space:nowrap;align-items:baseline;gap:6px;min-width:0;font-size:14px;display:flex;overflow:hidden}.search-select-value strong{max-width:100%;font-weight:var(--weight-semibold);text-overflow:ellipsis;flex:0 auto;overflow:hidden}.search-select-value small{min-width:0;color:var(--text-3);font-size:var(--type-caption);text-overflow:ellipsis;flex:1 1 0;overflow:hidden}.search-select-value small:before{content:"· "}.button-danger-solid{background:var(--danger);border-color:var(--danger);color:var(--on-accent)}.button-danger-solid:hover:not(:disabled){filter:brightness(.92)}.confirm-popover{z-index:60;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);width:300px;box-shadow:var(--shadow-pop);text-align:left;gap:12px;padding:14px;display:grid;position:fixed}.confirm-popover.above{animation:none;transform:translateY(-100%)}.confirm-popover p{color:var(--text-2);font-size:13px;line-height:1.5}.confirm-popover .button-row{justify-content:flex-end}.move-controls{flex:0 0 28px;align-self:center;gap:2px;width:28px;display:grid}.move-controls button{width:28px;height:var(--target-min);border-radius:var(--radius-control);color:var(--text-3);cursor:pointer;background:0 0;border:1px solid #0000;place-items:center;padding:0;display:grid}.move-controls button:hover:not(:disabled){background:var(--surface-muted);border-color:var(--border);color:var(--text)}.move-controls button:disabled{opacity:.3;cursor:default}.move-controls svg{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;width:14px;height:14px}.outline-row{grid-template-columns:28px minmax(0,1fr) auto;align-items:center;gap:14px;display:grid}.outline-actions{flex-wrap:nowrap;justify-content:flex-end}.outline-item{border-top:1px solid var(--border);padding:12px 0}.outline-item:first-child{border-top:0}.outline-head+.list .outline-item:first-child{border-top:1px solid var(--border)}.outline-detail{margin:12px 0 0 42px}@media(max-width:640px){.outline-row{grid-template-columns:28px minmax(0,1fr)}.outline-actions{grid-column:2;justify-content:flex-start}.outline-detail{margin-left:0}}.kv-list{gap:2px;margin:0;font-size:12px;display:grid}.kv-list div{gap:6px;min-width:0;display:flex}.kv-list dt{color:var(--text-3);white-space:nowrap;text-transform:capitalize}.kv-list dd{color:var(--text-2);overflow-wrap:anywhere;font-family:var(--font-mono);margin:0}.onboarding-banner{background:var(--accent-soft);border-bottom:1px solid var(--border-strong);color:var(--accent-text);animation:fade-in var(--motion) var(--ease-out)}.onboarding-banner .content-width{flex-wrap:wrap;align-items:baseline;gap:4px 10px;padding:10px 24px;font-size:13px;display:flex}.onboarding-banner strong{font-weight:var(--weight-semibold)}.sidebar .brand{color:var(--on-accent);height:auto;min-height:82px;padding:14px 8px}.sidebar .brand small{color:var(--sidebar-text-muted)}.sidebar .button-quiet{color:var(--sidebar-text)}.sidebar .button-quiet:hover{background:var(--sidebar-hover-bg);color:var(--on-accent)}.nav-close{display:none}.icon-button.menu-toggle{width:auto;padding:0 10px;font-size:12px;font-weight:600}.stat-row{background:0 0;border-left:0;border-right:0;border-radius:0}.stat{padding:20px}.table-wrap{background:var(--surface)}.section-stack>*,.stack>*,.grid-2>*,.lesson-layout>*,.layout-main-side>*{min-width:0}.table-wrap{max-width:100%}.learning-dashboard{gap:16px;max-width:960px}.learning-class{gap:var(--space-6);min-width:0;padding:var(--space-6);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);display:grid}.learning-class-title{font-family:var(--font-ui);font-weight:var(--weight-semibold);font-size:var(--type-title);line-height:1.35;text-decoration:none;display:inline-block}.learning-summary{gap:16px}.learning-next{background:var(--accent-soft);border-radius:var(--radius-control);gap:12px;padding:18px;display:grid}.learning-next .continue-card>p{max-width:44ch}.learning-summary-links{gap:24px;display:flex}.learning-summary-links .text-link,.section-head .text-link{padding-block:4px;display:inline-block}.learning-outline{gap:12px;display:grid}.module-row{padding:16px 0}.module-row h3 a{padding-block:2px;text-decoration:none;display:inline-block}.module-row h3 a:hover{text-decoration:underline}.module-row p{margin-top:5px}.module-row>.status-pill{justify-self:start}.mobile-table-hint{display:none}.module-number{width:32px;height:32px}.lesson-nav{border:0;border-left:2px solid var(--border);background:0 0;padding-left:12px}.lesson-nav-title{margin-bottom:8px}.lesson-link{padding:12px 10px}.item-card{padding:24px}.item-card h3{font-size:var(--type-title);line-height:1.4}.rich-content,.plain-content{max-width:72ch;font-size:var(--type-reading);line-height:1.8}.rich-content img{max-width:100%;height:auto}.rich-content pre{overflow-x:auto}.rich-content a{overflow-wrap:anywhere}.question-block{padding:24px 0}.choice-option{min-height:48px;padding:14px}.quiz-card .card-topline{flex-wrap:wrap}.quiz-card .timer-chip{border-radius:var(--radius-control)}.login-panel h1{font-family:var(--font-editorial);font-size:var(--type-display);font-weight:var(--weight-medium);line-height:1.2}.login-card{border-top:3px solid var(--accent);padding:32px}.card-topline>div:first-child,.module-row>div,.lesson-link>span:last-child{overflow-wrap:anywhere;min-width:0}.toolbar>*,.search-select,.search-select-value{min-width:0;max-width:100%}.section-title{line-height:1.4}.workflow-links{border-top:1px solid var(--border);border-bottom:1px solid var(--border);grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin-bottom:24px;display:grid}.workflow-link{border-right:1px solid var(--border);padding:16px;text-decoration:none}.workflow-link:last-child{border-right:0}.workflow-link strong,.workflow-link span{display:block}.workflow-link span{color:var(--text-3);margin-top:4px;font-size:13px}.workflow-link:hover{background:var(--accent-soft)}.builder-outline{border-left:2px solid var(--accent);padding-left:12px}.builder-module-content{gap:12px;display:grid}.builder-module-content[hidden]{display:none}.release-editor{scroll-margin-top:88px}.module-toggle{text-align:left;cursor:pointer;background:0 0;border:0;width:100%;padding:0;display:block}.module-toggle strong{font-size:var(--type-item);line-height:1.5;display:block}.module-toggle small{color:var(--text-3);margin-top:4px;font-size:12px;display:block}.release-map{border-top:1px solid var(--border);border-bottom:1px solid var(--border);gap:0;margin-bottom:24px;display:grid}.release-map-row{border-bottom:1px solid var(--border);grid-template-columns:32px minmax(0,1fr) 200px;align-items:center;gap:12px;padding:14px 4px;display:grid}.release-map-row:last-child{border-bottom:0}.release-map-row a{font-weight:var(--weight-semibold);padding-block:2px;text-decoration:none;display:inline-block}.release-map-row a:hover{text-decoration:underline}.release-map-row small{color:var(--text-3)}.release-map-row>span:first-child{color:var(--text-3);font-variant-numeric:tabular-nums}.lesson-outline-toggle{display:none}.lesson-materials{border-bottom:1px solid var(--border);padding-bottom:12px}.lesson-materials summary{cursor:pointer;color:var(--text-2);font-weight:var(--weight-semibold);padding-block:2px}.lesson-materials ol{margin:12px 0 0;padding-left:20px;list-style:decimal}.lesson-materials li{padding:8px 0}.lesson-materials a{color:var(--accent);text-decoration:none}.lesson-materials a:hover{text-decoration:underline}.lesson-materials li span{color:var(--text-3);margin-left:12px;font-size:12px}.lesson-link-locked{color:var(--text-3)}.outline-item.is-editing{border-left:3px solid var(--accent);padding-left:12px}.activity-stream{border-top:2px solid var(--border-strong);padding-top:16px}.activity-stream .list-row{padding:12px 0}.activity-stream .cell-title{font-size:13px}.stat-row .stat{padding:var(--space-4) var(--space-5)}@media(max-width:1024px){.lesson-nav{border:0;max-height:none;padding:0}.lesson-nav-title{display:none}.lesson-outline-toggle{background:var(--surface);border:1px solid var(--border-strong);border-radius:var(--radius-control);text-align:left;cursor:pointer;justify-content:space-between;align-items:center;gap:12px;width:100%;min-height:44px;padding:10px 12px;font-weight:600;display:flex}.lesson-outline-toggle span{color:var(--text-3);font-size:12px;font-weight:400}.lesson-nav-collapsed .lesson-nav-content{display:none}.lesson-nav-content{max-height:320px;margin-top:8px;overflow-y:auto}}@media(max-width:860px){.nav-close{margin:0 0 16px;display:inline-flex}.page-heading h1{font-size:28px}.learning-class-title{font-family:var(--font-ui);font-size:var(--type-section);font-weight:var(--weight-semibold)}.learning-next{padding:16px}.continue-card{flex-direction:column;align-items:stretch;gap:12px}.learning-summary{gap:16px}.learning-class{gap:20px;padding:16px}.module-row{grid-template-columns:28px minmax(0,1fr) auto;gap:10px}.module-row>:last-child{grid-column:auto}.module-row>.status-pill{grid-column:2}.module-row .button-small{padding:6px 10px}.item-card{padding:18px}.workflow-links{grid-template-columns:1fr}.workflow-link{border-right:0;border-bottom:1px solid var(--border)}.workflow-link:last-child{border-bottom:0}.release-map-row{grid-template-columns:28px minmax(0,1fr)}.release-map-row small{grid-column:2}.builder-outline{padding-left:8px}.mobile-table-hint{color:var(--text-3);margin-bottom:10px;font-size:12px;display:block}.question-block .card-topline{flex-direction:column;gap:4px}.search-select-value{height:auto;min-height:44px}.search-select-value span{white-space:normal;gap:2px;display:grid}.search-select-value strong{overflow-wrap:anywhere;max-width:none}.file-row{flex-direction:column;align-items:stretch}.file-row .button{width:100%}}.grading-card{padding-bottom:var(--space-5);display:grid}.grading-head{padding-bottom:var(--space-4)}.grading-question{gap:var(--space-3);padding:var(--space-5) 0;border-top:1px solid var(--border);display:grid}.grading-question-head{justify-content:space-between;align-items:baseline;gap:var(--space-4);display:flex}.grading-question-head h3{font-size:var(--type-item);font-weight:var(--weight-semibold);overflow-wrap:anywhere;margin:0;line-height:1.5}.grading-question-head>span{white-space:nowrap;flex:none}.answer-box{gap:var(--space-1);padding:var(--space-3) 14px;border:1px solid var(--border);border-radius:var(--radius-control);background:var(--surface-muted);display:grid}.answer-label{color:var(--text-3);font-size:var(--type-caption);font-weight:var(--weight-semibold)}.answer-text{color:var(--text);font-size:var(--type-body);white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.6}.answer-options{color:var(--text);font-size:var(--type-body);margin:0;padding-left:1.2em;line-height:1.6;list-style:outside}.grading-inputs{gap:var(--space-4);grid-template-columns:minmax(0,200px) minmax(0,1fr);align-items:start;display:grid}.grading-card>.locked-box,.grading-card>.error-notice{margin:0 0 var(--space-3)}.grading-actions{padding-top:var(--space-5);border-top:1px solid var(--border)}.grading-queue{padding:var(--space-2);gap:2px;display:grid;position:sticky;top:88px}.grading-queue .lesson-link{text-align:left;width:100%;font:inherit;cursor:pointer;background:0 0;border:0}.grading-queue .lesson-link:hover{background:var(--surface-muted)}.grading-queue .lesson-link.active{background:var(--accent-soft)}@media(max-width:1024px){.grading-queue{position:static}}@media(max-width:640px){.grading-question-head{gap:var(--space-1);flex-direction:column}.grading-inputs{grid-template-columns:1fr}}@media(max-width:860px),(pointer:coarse){.button,.button-small{min-height:var(--target-touch)}input:not([type=checkbox]):not([type=radio]):not([type=file]),select,.pagination select{height:var(--target-touch);line-height:calc(var(--target-touch) - 2px)}.search-select-value{min-height:var(--target-touch)}.icon-button{min-width:var(--target-touch);height:var(--target-touch)}.nav-link,.tab,.lesson-link{min-height:var(--target-touch)}.checkbox-row{min-height:var(--target-touch);align-items:center}.checkbox-row input{margin-top:0}.lesson-materials summary{padding-block:12px}.outline-row{grid-template-columns:40px minmax(0,1fr) auto}.move-controls{flex-basis:40px;width:40px}.move-controls button{width:40px;height:36px}.outline-detail{margin-left:54px}}@media(max-width:640px){.outline-row{grid-template-columns:40px minmax(0,1fr)}.outline-detail{margin-left:0}}:root[data-theme=dark]{--bg:#080b14;--surface:#111828;--surface-muted:#192135;--border:#222c42;--border-strong:#2b3752;--control-border:#56647f;--text:#f8fafc;--text-2:#c5cedf;--text-3:#aeb9ce;--text-4:#8a97b0;--accent:#5b8cff;--accent-hover:#7aa2ff;--accent-soft:#1d3fa8;--accent-text:#dbe6ff;--accent-ring:#5b8cff66;--success:#86efac;--success-soft:#0f6b43;--warning:#fff1c4;--warning-soft:#8a6200;--danger:#fda29b;--danger-soft:#3a1715;--danger-border:#7a2e2a;--danger-strong:#fecdca;--success-border:#1f8a5a;--neutral-soft:#263049;--on-accent:#080b14;--tile-blue:#1d3fa8;--tile-blue-t:#dbe6ff;--tile-mint:#0f6b43;--tile-mint-t:#d3fbe4;--tile-cyan:#0b6580;--tile-cyan-t:#d0f6ff;--tile-amber:#8a6200;--tile-amber-t:#fff1c4;--tile-orange:#a8431a;--tile-orange-t:#ffe6d8;--tile-lime:#4c6f0f;--tile-lime-t:#eefdcb;--tile-lime-seg:#2a4108;--chip:#ffffff24;--info:#67e8f9;--sidebar-text:#c5cedf;--sidebar-text-muted:#aeb9ce;--sidebar-caption:#8a97b0;--backdrop:#0009;--shadow-pop:0 12px 32px #00000080;color-scheme:dark}:root{font-family:var(--font-ui)}body{background:var(--bg);color:var(--text)}:focus-visible{outline-color:#5b8cff}.app-frame{gap:var(--gap);padding:var(--gap);align-items:start}.sidebar{top:var(--gap);height:calc(100vh - 2 * var(--gap));border-radius:var(--radius);color:var(--text);gap:0;padding:16px}.sidebar .brand{color:var(--text);min-height:0;font-size:16px;font-weight:var(--weight-heavy);gap:12px;margin-bottom:8px;padding:8px 8px 4px}.sidebar .brand small{color:var(--text-3);font-size:12px;font-weight:var(--weight-medium)}.brand-mark{width:40px;height:40px;font-size:18px;font-weight:var(--weight-heavy);border-radius:12px}.sidebar-divider{display:none}.nav-group+.nav-group{border-top:0;margin-top:0;padding-top:0}.nav-caption{font-weight:var(--weight-bold);margin:0;padding:14px 12px 4px}.side-nav{gap:4px}.nav-link{font-weight:var(--weight-semibold);color:var(--sidebar-text);border-radius:14px;gap:12px;padding:10px 12px}.nav-link svg{fill:none;stroke:currentColor;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round;flex:none;width:18px;height:18px}.nav-link:hover{background:var(--sidebar-hover-bg);color:var(--text)}.nav-link.nav-active{background:var(--sidebar-active-bg);color:var(--text);font-weight:var(--weight-bold)}.sidebar :focus-visible{outline-color:#5b8cff}.sidebar-bottom{background:var(--tile-amber);border-radius:var(--radius-row);border-top:0;gap:10px;margin-top:auto;padding:12px;display:grid}.profile-chip{padding:0}.profile-chip strong{font-size:13px;font-weight:var(--weight-bold)}.profile-chip small{color:var(--tile-amber-t)}.sidebar-bottom .avatar{background:var(--chip);width:36px;height:36px;color:var(--text);font-weight:var(--weight-heavy)}.sidebar .sidebar-bottom .button-quiet.signout{background:var(--chip);color:var(--text);font-weight:var(--weight-bold);justify-content:center;margin:0}.sidebar .sidebar-bottom .button-quiet.signout:hover:not(:disabled){background:var(--surface)}.main-column{gap:var(--gap)}.topbar{border-radius:var(--radius);border:0;height:auto;min-height:64px;padding:10px 12px 10px 20px;position:static}.topbar-title{color:var(--text-4);font-size:12px;font-weight:var(--weight-bold);letter-spacing:.08em;text-transform:uppercase}.topbar-right{gap:10px}.topbar .avatar{background:var(--tile-blue);color:var(--tile-blue-t);font-weight:var(--weight-heavy)}.theme-toggle{background:var(--surface-muted);width:44px;height:44px;color:var(--text);cursor:pointer;border:0;border-radius:14px;place-items:center;display:inline-grid}.theme-toggle:hover{background:var(--neutral-soft)}.theme-toggle svg{fill:none;stroke:currentColor;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round;width:20px;height:20px}.content-area{flex-direction:column;max-width:none;padding:0;display:flex}.app-footer{border:0;padding:4px 8px 8px}.global-alert,.onboarding-banner{border-radius:var(--radius);border:0}.onboarding-banner{background:var(--tile-blue);color:var(--tile-blue-t)}.global-alert .content-width,.onboarding-banner .content-width{max-width:none;padding:14px 20px}.sidebar>*{flex-shrink:0}.sidebar{scrollbar-width:thin;scrollbar-color:var(--border-strong) transparent}.sidebar-bottom{margin-top:auto}.sidebar nav{margin-bottom:16px}:root[data-theme=dark] .sidebar .sidebar-bottom .button-quiet.signout{background:#00000040}:root[data-theme=dark] .sidebar .sidebar-bottom .button-quiet.signout:hover:not(:disabled){background:#0006}.page-heading{background:var(--surface);border-radius:var(--radius);margin-bottom:var(--gap);flex-wrap:wrap;align-items:center;padding:24px}.page-heading h1{font-family:var(--font-ui);font-size:var(--type-display);line-height:1.15;font-weight:var(--weight-heavy);letter-spacing:-.01em}.eyebrow{color:var(--text-4);font-weight:var(--weight-bold);letter-spacing:.08em}.page-description{margin-top:6px}.breadcrumb a{color:var(--text);font-weight:var(--weight-bold)}.card,.item-card,.learning-class,.login-card{border-radius:var(--radius);border:0}.card h2,.section-title{font-weight:var(--weight-heavy)}.section-stack,.item-list,.card-grid,.grid-2,.grid-3{gap:var(--gap)}.layout-main-side{gap:var(--gap);grid-template-columns:minmax(0,1fr) 340px}.dashboard-shortcuts,.dashboard-lists{margin-bottom:var(--gap)}.card-flush>.section-head{padding:20px 20px 0}.card-flush .table-wrap{margin-top:14px}.stat-row{gap:var(--gap);margin-bottom:var(--gap);background:0 0;border:0;border-radius:0;flex-wrap:wrap;display:flex}.stat-row .stat,.stat{border-radius:var(--radius);background:var(--tile-blue);--stat-t:var(--tile-blue-t);border:0;flex:150px;align-content:start;gap:14px;padding:18px;display:grid}.stat-row .stat:nth-child(5n+2){background:var(--tile-mint);--stat-t:var(--tile-mint-t)}.stat-row .stat:nth-child(5n+3){background:var(--tile-cyan);--stat-t:var(--tile-cyan-t)}.stat-row .stat:nth-child(5n+4){background:var(--tile-amber);--stat-t:var(--tile-amber-t)}.stat-row .stat:nth-child(5n+5){background:var(--tile-orange);--stat-t:var(--tile-orange-t)}.stat-row .stat.stat-warning{background:var(--tile-amber);--stat-t:var(--tile-amber-t)}a.stat:hover,a.stat:hover:nth-child(n){filter:brightness(.97)}:root[data-theme=dark] a.stat:hover{filter:brightness(1.12)}.stat-label{color:var(--stat-t);font-size:13px;font-weight:var(--weight-semibold);justify-content:space-between;align-items:center;gap:8px;display:flex}.stat-value{color:var(--text);font-size:40px;line-height:1;font-weight:var(--weight-heavy);letter-spacing:-.02em;margin:0}.stat-note{color:var(--stat-t);margin:0;font-size:12px}.stat-warning .stat-value{color:var(--text)}.stat-chip{background:var(--chip);width:32px;height:32px;color:var(--text);border-radius:10px;flex:none;place-items:center;display:grid}.stat-chip svg,.activity-chip svg{fill:none;stroke:currentColor;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round;width:16px;height:16px}.button{border-radius:var(--radius-control);font-weight:var(--weight-bold)}.page-heading-action .button{border-radius:16px;min-height:48px;padding:12px 22px}.button-secondary{background:var(--surface-muted);border-color:var(--border-strong);color:var(--text)}.button-secondary:hover:not(:disabled){background:var(--neutral-soft)}.button-danger{background:var(--surface)}.button-quiet:hover:not(:disabled){background:var(--surface-muted)}.pill-link{background:var(--tile-blue);min-height:34px;color:var(--tile-blue-t);font-size:13px;font-weight:var(--weight-bold);white-space:nowrap;border-radius:999px;align-items:center;padding:6px 14px;text-decoration:none;display:inline-flex}.pill-link:hover{filter:brightness(.96)}:root[data-theme=dark] .pill-link:hover{filter:brightness(1.15)}.button:disabled,.button-secondary:disabled,.button-quiet:disabled,.button-danger:disabled{opacity:1;background:var(--surface-muted);color:var(--text-4);border-color:#0000}input:not([type=checkbox]):not([type=radio]):not([type=file]),select,.pagination select,.entry-points input{padding-block:0;line-height:normal}input,select,textarea{border-radius:var(--radius-control);background-color:var(--surface-muted)}input:not([type=checkbox]):not([type=radio]):not([type=file]),select{height:44px;padding-inline:14px;line-height:42px}select{padding-right:34px}textarea{padding:12px 14px}.search-select-value{border-radius:var(--radius-control);background-color:var(--surface-muted);height:44px}.field-label{color:var(--text-3);font-size:12px;font-weight:var(--weight-bold)}:root[data-theme=dark] select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23AEB9CE' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E")}.pagination select,.entry-points input{height:34px;line-height:32px}.status-pill{font-weight:var(--weight-bold);padding:3px 12px;line-height:20px}.status-pill:before{opacity:1}.status-green{color:var(--success);background:var(--tile-mint)}.status-amber{color:var(--tile-amber-t);background:var(--tile-amber)}.status-blue{color:var(--info);background:var(--tile-cyan)}.notice{border-radius:var(--radius-control);background:var(--tile-blue);color:var(--tile-blue-t)}.notice-success{background:var(--tile-mint);color:var(--tile-mint-t)}.error-notice,.locked-box,.file-row,.answer-box,.choice-option,.option-list li,.version-entry,.lesson-outline-toggle{border-radius:var(--radius-control)}.empty-state{border-radius:var(--radius)}.table-wrap{border-radius:var(--radius-control);border:0}th{background:var(--surface-muted);color:var(--text-4);font-weight:var(--weight-bold);letter-spacing:.06em}thead th{background:var(--surface-muted);color:var(--text-4)}tbody tr:hover td{background:var(--surface-muted)}.content-area .toolbar{margin-bottom:var(--gap);background:var(--surface);border-radius:var(--radius);padding:16px}.content-area .card .toolbar{background:0 0;border-radius:0;margin-bottom:16px;padding:0}.content-area .table-wrap{border-radius:var(--radius)}.content-area .card .table-wrap{border-radius:var(--radius-control)}.content-area .card-flush .table-wrap{border-radius:0}.pagination{padding:12px 4px 0}.lesson-nav{border-radius:var(--radius);background:var(--surface);border:0;padding:12px}.list-row{border:0}.tile-rows{gap:8px;display:grid}.tile-row{border-radius:var(--radius-row);background:var(--surface-muted);color:inherit;flex-wrap:wrap;align-items:center;gap:8px 16px;padding:12px 16px;text-decoration:none;display:flex}a.tile-row:hover{background:var(--neutral-soft)}.tile-row-main{flex:180px;gap:3px;min-width:0;display:grid}.tile-row-main strong{font-size:14px;font-weight:var(--weight-bold);overflow-wrap:anywhere}.tile-row-main small{color:var(--text-3);font-size:12px}.tile-row-date{min-width:96px;color:var(--text-3);font-size:13px;font-weight:var(--weight-semibold);text-align:right;flex:none}.activity-chip{width:34px;height:34px;color:var(--text);border-radius:10px;flex:none;place-items:center;display:grid}.tabs{margin-bottom:var(--gap);background:var(--surface);border-radius:var(--radius);box-shadow:none;flex-wrap:wrap;gap:4px;padding:8px}.tab{color:var(--text-2);font-weight:var(--weight-bold);border:0;border-radius:14px;padding:10px 18px}.tab:hover{background:var(--surface-muted);color:var(--text)}.tab.active{background:var(--accent);color:var(--on-accent)}.module-number{background:var(--tile-blue);color:var(--tile-blue-t);font-weight:var(--weight-heavy)}.module-number.done{background:var(--tile-mint);color:var(--tile-mint-t)}.module-number.open{background:var(--accent);color:var(--on-accent)}.learning-next{background:var(--tile-blue);border-radius:var(--radius-row);color:var(--tile-blue-t)}.master-item,.lesson-link{border-radius:14px}.master-item.active,.lesson-link.active,.search-select-list li.active,.grading-queue .lesson-link.active{background:var(--accent);color:var(--on-accent)}.lesson-link.active small,.grading-queue .lesson-link.active small{color:inherit;opacity:.9}.master-item.active small{color:inherit;opacity:.85}.workflow-links{gap:var(--gap);border:0}.workflow-link{border-radius:var(--radius);background:var(--tile-blue);color:var(--tile-blue-t);border:0}.workflow-link:nth-child(2){background:var(--tile-mint);color:var(--tile-mint-t)}.workflow-link:nth-child(3){background:var(--tile-amber);color:var(--tile-amber-t)}.workflow-link span{color:inherit;opacity:.9}.workflow-link:hover{background:var(--tile-blue);filter:brightness(.97)}.workflow-link:nth-child(2):hover{background:var(--tile-mint)}.workflow-link:nth-child(3):hover{background:var(--tile-amber)}.activity-stream{background:var(--surface);border-radius:var(--radius);border:0;padding:20px}.login-card{border-top:0}.login-panel h1{font-family:var(--font-ui);font-weight:var(--weight-heavy)}.toast,.confirm-popover,.search-select-list{border-radius:var(--radius-control)}.overview-grid{gap:var(--gap);flex-wrap:wrap;align-items:stretch;display:flex}.overview-main{gap:var(--gap);flex-direction:column;flex:999 560px;min-width:0;display:flex}.overview-main>.page-heading,.overview-main>.stat-row{margin-bottom:0}.overview-lower{gap:var(--gap);flex-wrap:wrap;flex:auto;align-items:stretch;display:flex}.overview-lower>.card{flex-direction:column;flex:3 380px;gap:14px;display:flex}.overview-side{gap:var(--gap);flex-direction:column;flex:250px;min-width:0;display:flex}.overview-side>.card{flex-direction:column;flex:auto;gap:14px;display:flex}.overview-activity{flex-direction:column;flex:320px;gap:14px;display:flex}.overview-grid .section-head{margin:0}.composition{background:var(--tile-lime);color:var(--text);justify-content:space-between}.composition h2{margin:0;font-size:16px}.composition-total{color:var(--tile-lime-t);font-size:13px;font-weight:var(--weight-bold)}.composition-bar{gap:6px;height:44px;display:flex}.composition-bar span{border-radius:var(--radius-control);min-width:34px;font-size:15px;font-weight:var(--weight-heavy);align-items:center;padding:0 12px;display:flex}.composition-legend{color:var(--tile-lime-t);font-size:12px;font-weight:var(--weight-semibold);flex-wrap:wrap;gap:6px 14px;display:flex}.composition-legend i{vertical-align:-1px;border-radius:3px;width:10px;height:10px;margin-right:6px;display:inline-block}.seg-a{background:var(--chip)}.seg-b{background:var(--accent);color:var(--on-accent)}.seg-c{background:var(--tile-lime-seg)}.shortcut-tiles{flex-wrap:wrap;gap:8px;display:flex}.shortcut-tiles a{border-radius:var(--radius-row);min-height:44px;font-size:13px;font-weight:var(--weight-bold);color:var(--text);flex:100px;padding:14px;text-decoration:none}.shortcut-tiles a:hover{filter:brightness(.96)}:root[data-theme=dark] .shortcut-tiles a:hover{filter:brightness(1.15)}.fill-blue{background:var(--tile-blue)}.fill-mint{background:var(--tile-mint)}.fill-cyan{background:var(--tile-cyan)}.fill-amber{background:var(--tile-amber)}.fill-orange{background:var(--tile-orange)}.fill-lime{background:var(--tile-lime)}.page-heading-action{align-items:center}@media(min-width:861px){.topbar{display:none}}@media(max-width:860px){.theme-toggle-header{display:none}.app-frame{padding:var(--gap)}.sidebar{border-radius:0 var(--radius) var(--radius) 0;height:100vh;top:0}.topbar{padding:8px 8px 8px 12px}.page-heading{padding:18px}.page-heading h1{font-size:24px}.stat-value{font-size:32px}.content-area{padding:0}.tabs{flex-wrap:nowrap}}@media(max-width:860px),(pointer:coarse){.nav-link{min-height:var(--target-touch)}}}@layer utilities{.visible{visibility:visible}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.fixed{position:fixed}.relative{position:relative}.static{position:static}.container{width:100%}@media(min-width:40rem){.container{max-width:40rem}}@media(min-width:48rem){.container{max-width:48rem}}@media(min-width:64rem){.container{max-width:64rem}}@media(min-width:80rem){.container{max-width:80rem}}@media(min-width:96rem){.container{max-width:96rem}}.block{display:block}.flex{display:flex}.grid{display:grid}.hidden{display:none}.inline{display:inline}.table{display:table}.grow{flex-grow:1}.resize{resize:both}.border{border-style:var(--tw-border-style);border-width:1px}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@keyframes spin{to{transform:rotate(360deg)}}