@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-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;--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%;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]){appearance:button}::file-selector-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;@layer utilities{.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.relative{position:relative}.static{position:static}.contents{display:contents}.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,)}}:root{color:#172033;font-synthesis:none;text-rendering:optimizelegibility;--ink:#172033;--muted:#667085;--line:#e4e7ec;--surface:#fff;--soft:#f1f4f9;--blue:#3157d5;--blue-deep:#2443ad;--blue-soft:#edf1ff;--green:#25805a;--radius:14px;--shadow:0 20px 50px #1a27471c;background:#f7f8fa;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:#f7f8fa;min-width:320px;min-height:100vh;margin:0}button,input,textarea{font:inherit}button,summary,a{-webkit-tap-highlight-color:transparent}button{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline-offset:2px;outline:3px solid #3157d54d}main{z-index:1;width:min(1180px,100% - 40px);margin:0 auto;position:relative}.topbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;height:76px;display:flex}.brand{color:var(--ink);letter-spacing:-.02em;align-items:center;gap:10px;font-weight:700;text-decoration:none;display:flex}.brand-mark{background:var(--ink);color:#fff;border-radius:9px;place-items:center;width:32px;height:32px;font-family:Georgia,serif;display:grid}.privacy-note{color:var(--muted);font-size:13px}.hero{grid-template-columns:1.55fr .8fr;align-items:center;gap:70px;min-height:405px;padding:70px 0 60px;display:grid}.eyebrow,.section-kicker{color:var(--blue);letter-spacing:.105em;text-transform:uppercase;align-items:center;gap:7px;font-size:12px;font-weight:750;line-height:1;display:flex}.hero h1{letter-spacing:-.058em;max-width:740px;margin:21px 0 20px;font-size:clamp(44px,5.7vw,72px);font-weight:710;line-height:.99}.hero h1 span{color:#7d8696;font-weight:480}.hero-copy>p{max-width:650px;color:var(--muted);margin:0;font-size:17px;line-height:1.65}.overall-card{border:1px solid var(--line);background:#ffffffdb;border-radius:18px;align-items:center;gap:20px;padding:24px;display:flex;box-shadow:0 10px 30px #1a27470d}.overall-card>div:last-child{gap:4px;display:grid}.overall-card span{color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-size:12px;font-weight:600}.overall-card strong{font-size:16px}.overall-card small{color:var(--muted)}.progress-ring{flex:none;place-items:center;display:grid;position:relative}.progress-ring svg{position:absolute;inset:0;transform:rotate(-90deg)}.progress-ring circle{fill:none;stroke-width:4px}.progress-track{stroke:#e9edf4}.progress-value{stroke:var(--blue);stroke-linecap:round}.progress-ring span{color:var(--ink);letter-spacing:0;font-size:10px;font-weight:750}.overall-card .progress-ring span{font-size:16px}.library{border-top:1px solid var(--line);padding:40px 0 80px}.library-header{justify-content:space-between;align-items:end;gap:30px;margin-bottom:24px;display:flex}.library-header h2{letter-spacing:-.035em;margin:8px 0 0;font-size:30px}.counts{color:var(--muted);align-items:center;gap:10px;font-size:13px;display:flex}.counts i{background:#a6adba;border-radius:50%;width:3px;height:3px}.controls{justify-content:space-between;align-items:center;gap:18px;margin-bottom:26px;display:flex}.search-box{border:1px solid var(--line);color:#98a2b3;background:#fff;border-radius:10px;align-items:center;gap:10px;width:min(410px,100%);height:44px;padding:0 13px;transition:border-color .2s,box-shadow .2s;display:flex}.search-box:focus-within{border-color:#a8b8ef;box-shadow:0 0 0 3px #3157d514}.search-box input{min-width:0;color:var(--ink);background:0 0;border:0;outline:0;flex:1}.search-box input::placeholder{color:#98a2b3}.search-box button{color:var(--blue);cursor:pointer;background:0 0;border:0;padding:5px;font-size:12px;font-weight:650}.filters{background:#eceff3;border-radius:11px;padding:4px;display:flex;overflow-x:auto}.filters button{white-space:nowrap;height:34px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:8px;align-items:center;gap:6px;padding:0 12px;font-size:12px;font-weight:650;display:flex}.filters button.active{color:var(--ink);background:#fff;box-shadow:0 1px 4px #1018281a}.unit-grid{grid-template-columns:repeat(2,1fr);gap:16px;display:grid}.unit-card{text-align:left;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);cursor:pointer;flex-direction:column;min-height:300px;padding:23px;transition:transform .2s,border-color .2s,box-shadow .2s;display:flex}.unit-card:hover{border-color:#cfd6e6;transform:translateY(-3px);box-shadow:0 14px 34px #1c2a4c14}.unit-card-top{justify-content:space-between;align-items:start;display:flex}.unit-number{color:var(--blue);letter-spacing:.1em;text-transform:uppercase;font-size:11px;font-weight:750}.unit-symbol{color:#c2c8d2;font:italic 22px Georgia,serif}.unit-copy{flex:1;padding-top:30px}.unit-copy h2{letter-spacing:-.025em;margin:0 0 10px;font-size:22px}.unit-copy p{max-width:520px;color:var(--muted);margin:0;font-size:14px;line-height:1.55}.unit-meta{color:var(--muted);border-bottom:1px solid var(--line);gap:16px;padding:22px 0 17px;font-size:12px;display:flex}.unit-meta span{align-items:center;gap:6px;display:flex}.unit-card-footer{justify-content:space-between;align-items:center;gap:12px;padding-top:15px;display:flex}.unit-progress-copy{color:var(--muted);align-items:center;gap:8px;font-size:12px;display:flex}.unit-progress-copy>svg{color:var(--green)}.open-label{color:var(--blue);align-items:center;gap:5px;font-size:12px;font-weight:700;display:flex}.empty-state{text-align:center;border-radius:var(--radius);color:var(--muted);border:1px dashed #cfd5df;justify-items:center;padding:76px 20px;display:grid}.empty-state h3{color:var(--ink);margin:14px 0 6px}.empty-state p{margin:0 0 18px}.empty-state button{background:var(--ink);color:#fff;cursor:pointer;border:0;border-radius:8px;padding:9px 14px}footer{color:var(--muted);border-top:1px solid var(--line);justify-content:space-between;padding:28px 0 44px;font-size:12px;display:flex}.math-mark{z-index:0;color:#3157d509;pointer-events:none;-webkit-user-select:none;user-select:none;font:180px Georgia,serif;position:fixed}.math-mark-one{top:70px;right:-20px;transform:rotate(8deg)}.math-mark-two{bottom:-30px;left:-25px;transform:rotate(-11deg)}.unit-dialog{width:100%;max-width:none;height:100%;max-height:none;color:var(--ink);background:0 0;border:0;margin:0;padding:0}.unit-dialog::backdrop{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#11182775}.dialog-panel{background:#f8f9fb;width:min(720px,100%);height:100%;position:absolute;top:0;right:0;overflow-y:auto;box-shadow:-20px 0 60px #0f172a2e}.dialog-header{z-index:3;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffffff5;justify-content:space-between;gap:25px;padding:31px 34px 26px;display:flex;position:sticky;top:0}.dialog-header h2{letter-spacing:-.035em;margin:9px 0 7px;font-size:28px}.dialog-header p{max-width:590px;color:var(--muted);margin:0;font-size:14px;line-height:1.5}.icon-button{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:9px;flex:none;place-items:center;width:36px;height:36px;display:grid}.dialog-progress{border-bottom:1px solid var(--line);background:#fff;padding:19px 34px}.dialog-progress>div:first-child{color:var(--muted);justify-content:space-between;margin-bottom:9px;font-size:12px;display:flex}.dialog-progress strong{color:var(--ink)}.progress-bar{background:#e8ebf1;border-radius:5px;height:5px;overflow:hidden}.progress-bar span{background:var(--blue);border-radius:inherit;height:100%;transition:width .25s;display:block}.topic-list{padding:20px 24px 60px}.topic{border:1px solid var(--line);background:#fff;border-radius:12px;margin-bottom:10px;overflow:hidden}.topic summary{cursor:pointer;grid-template-columns:28px 1fr 20px;align-items:center;gap:12px;min-height:74px;padding:15px 17px;list-style:none;display:grid}.topic summary::-webkit-details-marker{display:none}.topic summary small{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin-bottom:3px;font-size:10px;font-weight:700;display:block}.topic summary strong{font-size:15px;display:block}.topic-check{color:#fff;border:1.5px solid #cdd3de;border-radius:50%;place-items:center;width:24px;height:24px;display:grid}.topic-check.is-complete{background:var(--green);border-color:var(--green)}.chevron{color:#98a2b3;transition:transform .2s}.topic[open] .chevron{transform:rotate(180deg)}.topic-body{border-top:1px solid var(--line);padding:0 17px 19px 57px}.topic-summary{color:var(--muted);margin:18px 0 10px;font-size:14px;line-height:1.55}.objectives{gap:6px;margin:0 0 23px;padding:0;list-style:none;display:grid}.objectives li{color:#465064;padding-left:16px;font-size:12px;position:relative}.objectives li:before{content:"";background:#8ca0e6;border-radius:50%;width:5px;height:5px;position:absolute;top:6px;left:0}.resource-heading{justify-content:space-between;align-items:baseline;margin-bottom:10px;display:flex}.resource-heading span{font-size:12px;font-weight:750}.resource-heading small{color:var(--muted)}.resources{gap:9px;display:grid}.resource-card{border:1px solid var(--line);background:#fbfcfd;border-radius:10px;padding:13px}.resource-main{grid-template-columns:33px 1fr 30px;align-items:start;gap:10px;display:grid}.resource-avatar{background:var(--blue-soft);width:33px;height:33px;color:var(--blue);border-radius:8px;place-items:center;font-weight:800;display:grid}.teacher{color:var(--blue);font-size:10px;font-weight:750;display:block}.resource-card h4{margin:2px 0 0;font-size:13px;line-height:1.35}.favorite{color:#98a2b3;cursor:pointer;background:0 0;border:0;border-radius:7px;place-items:center;width:30px;height:30px;display:grid}.favorite.active{color:#d14d68;background:#fff0f3}.resource-meta{flex-wrap:wrap;gap:6px;margin:11px 0;padding-left:43px;display:flex}.resource-meta span{color:var(--muted);background:#eef1f5;border-radius:5px;align-items:center;gap:4px;padding:3px 6px;font-size:9px;font-weight:650;display:flex}.watch-link{color:var(--blue);align-items:center;gap:6px;margin-left:43px;font-size:11px;font-weight:750;text-decoration:none;display:inline-flex}.watch-link:hover{text-decoration:underline}.fallback{color:#98a2b3;margin:8px 0 0 43px;font-size:9px}.notes-label{justify-content:space-between;margin:22px 0 7px;font-size:12px;font-weight:750;display:flex}.notes-label span{color:var(--muted);font-size:9px;font-weight:500}.topic textarea{resize:vertical;border:1px solid var(--line);width:100%;min-height:78px;color:var(--ink);background:#fbfcfd;border-radius:9px;padding:10px 11px;font-size:12px;line-height:1.5}.topic textarea:focus{border-color:#a8b8ef}.complete-button{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:8px;align-items:center;gap:6px;margin-top:11px;padding:9px 12px;font-size:11px;font-weight:700;display:inline-flex}.complete-button.completed{color:var(--green);background:#eef9f4;border-color:#bfe5d4}.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}@media(max-width:850px){main{width:min(100% - 28px,700px)}.hero{grid-template-columns:1fr;gap:34px;padding:60px 0}.overall-card{width:min(390px,100%)}.controls{flex-direction:column;align-items:stretch}.search-box,.filters{width:100%}.filters button{flex:1;justify-content:center}.unit-grid{grid-template-columns:1fr}}@media(max-width:560px){main{width:min(100% - 22px,520px)}.privacy-note{display:none}.hero{min-height:0;padding:48px 0}.hero h1{font-size:43px}.hero-copy>p{font-size:15px}.library-header{flex-direction:column;align-items:start;gap:12px}.filters{justify-content:start}.filters button{flex:none}.unit-card{min-height:285px;padding:20px}footer{flex-direction:column;gap:6px}.unit-dialog{padding-top:8vh}.dialog-panel{border-radius:18px 18px 0 0;height:92vh;top:auto;bottom:0}.dialog-header{padding:24px 20px 20px}.dialog-header h2{font-size:23px}.dialog-progress{padding:16px 20px}.topic-list{padding:14px 10px 45px}.topic-body{padding-left:17px}.resource-meta,.watch-link,.fallback{margin-left:0}}@media(prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}@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}