select,textarea{font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:9px;padding:13px 14px;max-width:100%;width:100%;font-size:14px;line-height:1.6}select{cursor:pointer}textarea{resize:vertical;min-height:180px}select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--purple);outline-offset:3px}fieldset{min-width:0}button:focus-visible{scroll-margin:100px}.field-label{font-size:12px;font-weight:600;line-height:1.7;color:var(--muted);display:block;margin:20px 0 9px}.field-label select{margin-top:8px;font-weight:400}.form-pair{display:grid;grid-template-columns:1fr 1fr;gap:18px}.setup-panel{min-width:0}.setup-panel>.panel-heading{margin-bottom:25px}.setup-panel>.field-label{margin-top:24px}.session-preview{display:flex;gap:15px;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:22px;margin:26px 0}.session-preview strong{font-size:16px;font-weight:600}.session-preview p{font-size:13px;line-height:1.9;color:var(--muted);margin-top:6px}.start-button{margin:14px 0}.content-note{display:flex;align-items:flex-start;gap:9px;font-size:11px;line-height:1.9;color:var(--muted);margin:24px 0 10px}.content-note svg{margin-top:3px}.tip-list>div{padding:20px 0;border-top:1px solid var(--line)}.tip-list>div:first-child{margin-top:25px}.tip-list strong{font-size:13px}.tip-list p{font-size:12px;line-height:1.9;margin-top:6px;color:var(--muted)}.time-field{margin:20px 0 24px;padding:0;border:0}.time-field legend{font-size:12px;margin-bottom:14px}.setup-notes{padding-left:20px;color:var(--muted);font-size:13px;line-height:2.1;margin:24px 0}.resume-notice{margin:0 0 25px;flex-wrap:wrap}.resume-notice p{flex:1;min-width:190px}.form-error{color:#bc3f46;background:var(--orange-soft);padding:13px;border-radius:8px;font-size:13px}.session-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:25px}.session-heading h1{font-size:29px;letter-spacing:-.8px;margin-top:7px}.timer-chip{display:flex;align-items:center;gap:9px;background:var(--surface);padding:12px 16px;border:1px solid var(--line);border-radius:11px;font-size:15px;white-space:nowrap;font-variant-numeric:tabular-nums}.timer-low{color:#bc3f46;border-color:#bc3f46}.session-progress{height:5px;background:var(--line);border-radius:10px;overflow:hidden;margin:0 0 27px}.session-progress>div{background:var(--purple);height:100%;transition:width .2s}.player-layout{display:grid;grid-template-columns:minmax(0,1fr) 266px;gap:24px;align-items:start}.question-panel{padding:30px}.question-top{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:24px}.compact{padding:8px 12px!important;font-size:11px!important;min-height:35px!important}.is-saved{color:var(--purple)!important;background:var(--purple-soft)!important}.question-topic{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:12px;color:var(--muted);line-height:1.8;margin:23px 0 14px}.question-panel h2.question-stem,.oral-panel h2.question-stem{font-size:23px;font-weight:550;letter-spacing:-.4px;line-height:1.65;margin:0 0 25px;white-space:pre-wrap;overflow-wrap:anywhere}.answer-options{border:0;padding:0;margin:0;display:grid;gap:12px}.answer-choice{display:flex;align-items:center;gap:14px;padding:17px 18px;border:1px solid var(--line);border-radius:11px;font-size:15px;line-height:1.8;cursor:pointer;transition:border-color .15s,background .15s;position:relative}.answer-choice:hover,.answer-choice.chosen{border-color:var(--purple);background:var(--purple-soft)}.answer-choice input{width:16px;height:16px;accent-color:var(--purple);flex-shrink:0}.answer-choice input:disabled{cursor:default}.choice-letter{width:26px;height:26px;border-radius:7px;border:1px solid var(--line);display:grid;place-items:center;font-size:11px;font-weight:600;flex-shrink:0}.answer-choice.correct{border-color:var(--green);background:var(--green-soft)}.answer-choice.incorrect{border-color:var(--orange);background:var(--orange-soft)}.answer-choice.correct>svg{margin-left:auto;color:var(--green)}.feedback-panel{margin-top:25px;border-radius:12px;background:var(--bg);padding:25px;border-left:3px solid var(--orange);outline:none}.feedback-panel.positive{border-left-color:var(--green)}.feedback-panel>h3{font-size:17px;margin-bottom:12px;color:var(--orange)}.feedback-panel.positive>h3{color:var(--green)}.feedback-panel p,.review-body p{font-size:14px;line-height:1.95;margin:10px 0}.explanation{margin-top:20px}.explanation h3{font-size:14px;margin-bottom:9px}.explanation>p{font-size:14px;line-height:1.95;white-space:pre-wrap}.question-reference{border-top:1px solid var(--line);padding-top:17px;margin:20px 0 14px;display:flex;flex-wrap:wrap;align-items:center;gap:10px}.question-reference .acs-source{font-size:11px;overflow-wrap:anywhere}.question-reference small{display:block;width:100%;font-size:10px;line-height:1.8;color:var(--muted)}.question-navigation{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-top:28px;border-top:1px solid var(--line);padding-top:23px}.question-map h2{font-size:16px}.question-map>p{font-size:11px;color:var(--muted);line-height:1.8;margin-top:9px}.question-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:7px;margin:22px 0 12px}.question-grid button{display:grid;place-items:center;position:relative;min-height:35px;border:1px solid var(--line);border-radius:7px;background:var(--bg);font-size:11px}.question-grid button.answered{background:var(--purple-soft);color:var(--purple);border-color:var(--purple-soft)}.question-grid button.current{outline:2px solid var(--purple);outline-offset:1px}.question-grid button.flagged>span{position:absolute;right:3px;top:3px;width:5px;height:5px;border-radius:50%;background:var(--orange)}.map-legend{font-size:9px!important;margin-bottom:20px}.full-width{width:100%}.end-session{width:100%;justify-content:center;margin:15px 0 7px}.result-hero{display:flex;gap:40px;align-items:center;margin-bottom:35px;background:linear-gradient(120deg,var(--purple-soft),var(--surface));padding:35px}.result-score{font-size:66px;font-weight:600;letter-spacing:-3px;color:var(--purple);min-width:165px}.result-score>span{font-size:28px}.result-score small{display:block;color:var(--muted);font-size:10px;letter-spacing:0;font-weight:400;max-width:170px;line-height:1.7}.result-hero h2{font-size:23px;margin:16px 0 10px}.result-hero p{font-size:13px;line-height:1.9;color:var(--muted)}.review-list{display:grid;gap:12px}.review-question{padding:0;overflow:hidden}.review-question summary{display:flex;align-items:center;gap:15px;cursor:pointer;padding:22px 24px;list-style:none;font-size:14px;line-height:1.8}.review-question summary::-webkit-details-marker{display:none}.review-question summary>span:nth-child(2){flex:1;min-width:0}.review-question summary small{display:block;font-size:10px;color:var(--muted);margin-top:7px}.review-question summary>.muted{font-size:10px}.answer-mark{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;flex-shrink:0}.answer-mark.right{background:var(--green-soft);color:var(--green)}.answer-mark.wrong{background:var(--orange-soft);color:var(--orange)}.review-body{padding:0 25px 25px;border-top:1px solid var(--line)}.review-body>.button{margin-top:10px}.library-search{margin:5px 0 26px;max-width:450px}.lesson-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.lesson-card{text-align:left;display:flex;flex-direction:column;align-items:flex-start;min-width:0;transition:border-color .15s}.lesson-card:hover{border-color:var(--purple)}.lesson-card>small{font-size:9px;letter-spacing:.5px;color:var(--purple);margin:18px 0 8px}.lesson-card h2{font-size:17px;line-height:1.6;margin:0 0 13px}.lesson-card>p{font-size:12px;line-height:1.9;color:var(--muted);display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:20px}.lesson-card>.text-button{margin-top:auto}.lesson-reader{max-width:900px;margin:0 auto;padding:40px 45px}.lesson-reader>.eyebrow{margin-top:30px;line-height:1.9}.lesson-reader>h2{font-size:31px;line-height:1.5;letter-spacing:-.7px;margin:12px 0 22px}.lesson-reader p,.lesson-reader li{font-size:15px;line-height:2.05;overflow-wrap:anywhere}.lesson-reader .lesson-intro{font-size:17px;color:var(--muted)}.lesson-reader section{margin-top:32px}.lesson-reader h3{font-size:18px;line-height:1.6;margin-bottom:13px}.lesson-reader section>p{margin:10px 0}.lesson-reader ul{padding-left:21px}.lesson-reader li{padding-left:6px;margin-bottom:8px}.worked-example{padding:24px;background:var(--purple-soft);border-radius:12px;margin:25px 0}.worked-example .small-heading{display:block;margin-bottom:13px;color:var(--purple)}.lesson-check{border:1px solid var(--line);padding:25px;border-radius:12px}.lesson-check>.small-heading{display:block;color:var(--purple);margin-bottom:15px}.lesson-check>.button{margin-top:12px}.check-answer{padding-top:18px;border-top:1px solid var(--line);margin-top:23px!important}.lesson-sources{margin-top:35px;padding-top:25px;border-top:1px solid var(--line)}.lesson-sources .acs-source{display:block;font-size:12px}.lesson-sources .field-help{font-size:11px;line-height:1.9}.oral-panel>.button{margin-top:18px}.oral-rubric{border-top:1px solid var(--line);padding-top:25px;margin-top:30px}.oral-rubric h3{font-size:18px;line-height:1.7}.oral-rubric p{font-size:14px;line-height:1.95;margin:12px 0}.rubric-point{display:flex;gap:12px;align-items:flex-start;font-size:14px;line-height:1.9;border:1px solid var(--line);padding:16px;border-radius:9px;margin:10px 0}.rubric-point input{accent-color:var(--purple);width:17px;height:17px;flex-shrink:0;margin-top:4px}.oral-rubric details{background:var(--bg);border-radius:9px;padding:17px;margin-top:20px;font-size:14px}.oral-rubric summary{cursor:pointer;font-weight:600}.oral-history{margin-top:20px;border-top:1px solid var(--line);padding-top:20px}.oral-history h3{font-size:13px}.oral-history details{font-size:12px;line-height:1.9;margin-top:15px}.oral-history summary{cursor:pointer}.oral-history details p{white-space:pre-wrap}.recommendation-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-bottom:27px}.recommendation{text-align:left}.recommendation h3{font-size:15px;line-height:1.7;margin:14px 0 10px}.recommendation p{font-size:12px;line-height:1.9;color:var(--muted);margin-bottom:20px}.evidence-panel{margin:27px 0}.evidence-subject{margin-top:30px}.evidence-subject h3{font-size:18px;margin:20px 0 13px}.evidence-row{display:flex;justify-content:space-between;align-items:center;width:100%;gap:25px;text-align:left;border-top:1px solid var(--line);padding:15px 0}.evidence-row small{font-size:9px;display:block;line-height:1.8;color:var(--muted)}.evidence-row>span:first-child{flex:1}.evidence-row strong{display:block;font-size:13px;font-weight:500;margin-top:4px;line-height:1.8}.evidence-row>span:last-child{text-align:right;min-width:160px}.evidence-row b{font-size:11px;font-weight:500;color:var(--purple)}.history-list{margin-top:20px}.history-row{display:flex;gap:15px;align-items:center;text-align:left;width:100%;border-top:1px solid var(--line);padding:20px 0}.history-row>span:nth-child(2){flex:1}.history-row strong{font-size:13px;font-weight:500;line-height:1.7}.history-row small{display:block;font-size:10px;color:var(--muted);line-height:1.8;margin-top:5px}.history-score{display:flex;align-items:center;gap:15px;font-size:19px;color:var(--purple)}.library-toolbar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:18px;margin-bottom:24px}.segmented{display:inline-flex;gap:3px;padding:4px;background:var(--line);border-radius:10px}.segmented button{font-size:12px;padding:11px 17px;border-radius:7px;color:var(--muted)}.segmented button.selected{background:var(--surface);color:var(--purple)}.bookmark-practice{display:flex;gap:12px;flex-wrap:wrap;margin:0 0 22px}.unresolved-bookmark{display:flex;justify-content:space-between;gap:20px;padding:13px;border-top:1px solid var(--line);font-size:12px}.content-policy{margin-top:25px;padding-top:20px;border-top:1px solid var(--line)}.content-policy h3{font-size:14px;margin-bottom:15px}.content-policy p{font-size:12px;line-height:2;color:var(--muted);margin:10px 0}.panel-description{line-height:1.95}.feedback-panel:focus{outline:2px solid var(--purple);outline-offset:3px}@media(max-width:1250px){.player-layout{grid-template-columns:minmax(0,1fr) 220px}.question-panel{padding:24px}.question-map{padding:22px 16px}.lesson-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.question-panel h2.question-stem,.oral-panel h2.question-stem{font-size:21px}.answer-choice{font-size:14px;padding:16px 13px}.choice-letter{display:none}.recommendation-grid{gap:12px}.recommendation{padding:22px}}@media(max-width:1000px){.player-layout{grid-template-columns:1fr}.question-map .question-grid{grid-template-columns:repeat(10,minmax(0,1fr))}.question-map>.button{max-width:300px}.question-map .end-session{max-width:300px}.question-map>.field-help{max-width:500px}.result-hero{gap:25px}.recommendation-grid{grid-template-columns:1fr}.recommendation p{margin-bottom:10px}}@media(max-width:600px){.session-heading{align-items:flex-start;gap:12px}.session-heading h1{font-size:23px;line-height:1.5}.session-heading .eyebrow{font-size:8px}.timer-chip{font-size:12px;padding:10px;gap:6px}.question-panel{padding:21px 17px}.question-panel h2.question-stem,.oral-panel h2.question-stem{font-size:20px;line-height:1.7}.answer-choice{font-size:14px;gap:11px;padding:15px 12px}.answer-choice input{width:17px;height:17px}.question-top{margin-bottom:18px}.question-topic{font-size:11px}.question-navigation{gap:8px}.question-navigation>.button{font-size:11px;padding:11px 12px}.feedback-panel{padding:20px 15px}.feedback-panel p,.explanation>p,.review-body p{font-size:14px}.question-grid{gap:7px}.question-map .question-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.question-grid button{min-height:40px;font-size:12px}.form-pair{grid-template-columns:1fr;gap:0}.field-label{font-size:12px}.setup-notes{font-size:13px}.content-note{font-size:10px}.lesson-grid{grid-template-columns:1fr}.lesson-card h2{font-size:19px}.lesson-card>p{font-size:13px}.lesson-card>small{font-size:10px}.lesson-reader{padding:25px 19px}.lesson-reader>h2{font-size:25px}.lesson-reader p,.lesson-reader li{font-size:14px;line-height:2}.lesson-reader .lesson-intro{font-size:15px}.lesson-reader h3{font-size:17px}.worked-example,.lesson-check{padding:20px 17px}.result-hero{flex-wrap:wrap;gap:20px;padding:27px 22px}.result-score{font-size:58px;min-width:140px}.result-hero h2{font-size:22px}.review-question summary{padding:19px 16px;gap:11px;font-size:13px}.review-question summary .muted{display:none}.review-body{padding:5px 18px 22px}.evidence-row{align-items:flex-start;gap:15px}.evidence-row strong{font-size:12px}.evidence-row>span:last-child{min-width:95px;max-width:125px}.evidence-row small{font-size:9px}.evidence-row b{font-size:10px}.history-row{gap:11px}.history-row strong{font-size:12px}.history-row small{font-size:9px}.history-row>.icon-well{display:none}.history-score{font-size:17px;gap:8px}.history-panel .panel-heading>.badge{font-size:9px;line-height:1.8}.library-toolbar .search-field{width:100%}.segmented button{font-size:11px;padding:11px}.oral-rubric h3{font-size:17px}.oral-rubric .question-navigation{align-items:flex-start;flex-direction:column}.resume-notice .button{font-size:11px}}.standalone-input{width:100%;font:inherit;font-size:14px;line-height:1.6;padding:13px 14px;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:9px}.question-map .question-grid{max-height:390px;overflow-y:auto;padding:3px;scrollbar-width:thin}.question-map{position:sticky;top:20px}@media(max-width:1000px){.question-map{position:static}}.deciding-word{background:var(--orange-soft);color:var(--text);font-weight:750;padding:0 .13em;border-bottom:2px solid var(--orange);border-radius:3px}.practice-context{font-size:12px;line-height:1.9;background:var(--blue-soft);padding:15px 17px;border-radius:9px;color:var(--text);margin:0 0 22px}.question-figure{margin:20px 0 25px;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff}.question-figure img{display:block;max-width:100%;height:auto;margin:auto;max-height:680px;object-fit:contain}.question-figure figcaption{padding:12px 15px;font-size:10px;line-height:1.9;background:var(--surface);color:var(--muted)}.question-figure figcaption a{color:var(--purple);text-decoration:underline}.all-learning-list{display:grid;gap:25px;min-width:0}.learning-question-card{content-visibility:auto;contain-intrinsic-size:auto 650px;scroll-margin-top:25px}.learning-card-footer{display:flex;justify-content:space-between;align-items:center;gap:15px;border-top:1px solid var(--line);padding-top:20px;margin-top:25px}.all-section-intro{font-size:13px;line-height:1.9;color:var(--muted);margin-top:10px}.section-finish{margin-top:12px}.all-learning-layout .question-map .field-label{margin-top:20px;font-size:10px}.all-learning-layout .question-map select{font-size:11px;padding:10px;min-width:0}.all-learning-layout .question-map .question-grid{max-height:300px}@media(max-width:1000px){.all-learning-layout{display:flex;flex-direction:column}.all-learning-layout .question-map{order:-1;width:100%}.all-learning-layout .question-map .question-grid{max-height:150px}.all-learning-list{width:100%}}.section-map-details{margin:18px 0}.section-map-details summary{font-size:12px;font-weight:600;cursor:pointer;line-height:1.8;color:var(--purple)}.all-learning-layout .question-map>.full-width{font-size:11px}.section-map-details .question-grid{margin-top:15px}@media(max-width:1000px){.all-learning-layout .question-map>.field-help{display:none}.all-learning-layout .question-map .section-finish{display:inline-flex;width:auto;margin:0 0 0 10px}.all-learning-layout .question-map>.button.secondary{width:auto}.all-learning-layout .end-session{display:inline-flex;max-width:max-content;margin-left:16px;margin-bottom:0}}.account-form{display:grid;gap:16px}.account-form label{display:grid;gap:7px;font-weight:600}.account-form input{width:100%;border:1px solid var(--line);border-radius:9px;padding:12px;background:var(--surface);color:inherit}.account-panel{grid-column:1 / -1}.all-learning-list{grid-template-columns:minmax(0,1fr)}.learning-question-card,.answer-options{min-width:0}@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:block))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--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;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 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%;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{.collapse{visibility:collapse}.invisible{visibility:hidden}.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}.absolute{position:absolute}.fixed{position:fixed}.relative{position:relative}.static{position:static}.isolate{isolation:isolate}.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}.contents{display:contents}.flex{display:flex}.grid{display:grid}.hidden{display:none}.inline{display:inline}.table{display:table}.transform{transform:var(--tw-rotate-x, ) var(--tw-rotate-y, ) var(--tw-rotate-z, ) var(--tw-skew-x, ) var(--tw-skew-y, )}.rounded{border-radius:.25rem}.uppercase{text-transform:uppercase}.ring{--tw-ring-shadow:var(--tw-ring-inset, ) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color,currentcolor);box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}.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, )}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}}:root{color:#242737;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;--bg:#f7f8fc;--surface:#fff;--sidebar:#fff;--text:#242737;--muted:#797d90;--subtle:#a1a4b4;--line:#eceef5;--purple:#7461d9;--purple-soft:#f0edfc;--blue:#4b89c4;--blue-soft:#edf4fc;--orange:#c88d53;--orange-soft:#fdf3e9;--green:#429585;--green-soft:#edf8f4;--shadow:0 3px 16px #24273703;--radius:16px;color-scheme:light;background:#f7f8fc;font-family:Segoe UI,-apple-system,BlinkMacSystemFont,sans-serif}:root[data-theme=dark]{--bg:#10121b;--surface:#191c28;--sidebar:#151822;--text:#e7e8f0;--muted:#a0a6bb;--subtle:#747c97;--line:#2a2e41;--purple:#b1a1ff;--purple-soft:#30294a;--blue:#8bb9e8;--blue-soft:#223348;--orange:#e7b27f;--orange-soft:#3b2e27;--green:#83c9b5;--green-soft:#203b34;--shadow:none;color-scheme:dark}*{box-sizing:border-box}body{min-width:320px;margin:0}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}button,a{touch-action:manipulation}button{color:inherit}a{color:inherit;text-decoration:none}button{background:0 0;border:0}svg{flex-shrink:0}h1,h2,h3,p{margin:0}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--purple);outline-offset:4px}main:focus{outline:0}::selection{color:#252033;background:#d7caff}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;position:absolute!important}.skip-link{z-index:100;background:var(--surface);border-radius:10px;padding:15px;position:fixed;top:-70px;left:20px}.skip-link:focus{top:12px}.app-shell{background:var(--bg);min-height:100vh;color:var(--text);display:flex}.sidebar{background:var(--sidebar);border-right:1px solid var(--line);z-index:20;flex-direction:column;width:242px;padding:30px 19px 17px;display:flex;position:fixed;inset:0 auto 0 0}.brand{letter-spacing:-.5px;white-space:nowrap;align-items:center;gap:11px;padding:0 7px;font-size:17px;font-weight:650;display:flex}.brand b{font-weight:450}.brand-icon{color:#fff;background:#7763d9;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:39px;height:39px;display:inline-flex;box-shadow:0 5px 11px #7763d925}.brand-icon svg{transform:rotate(-14deg)}.brand small{letter-spacing:1.35px;color:var(--muted);margin-top:5px;font-size:7.7px;font-weight:600;display:block}.sidebar-label{letter-spacing:1.6px;color:var(--subtle);margin:42px 14px 14px;font-size:9px;font-weight:650}.second-label{margin-top:30px}.nav-item{min-height:44px;color:var(--muted);border-radius:9px;align-items:center;gap:12px;margin:4px 0;padding:11px 14px;font-size:12px;font-weight:500;transition:background .15s,color .15s;display:flex}.nav-item:hover{background:var(--bg);color:var(--text)}.nav-item.active{background:var(--purple-soft);color:var(--purple);font-weight:600}.nav-dot{background:var(--subtle);border-radius:50%;width:5px;height:5px;margin-left:auto}.sidebar-bottom{margin-top:auto;padding-top:44px}.local-card{border:1px solid var(--line);background:linear-gradient(140deg,var(--bg),var(--surface));border-radius:12px;margin:0 7px 18px;padding:16px 15px}.local-icon{color:var(--purple);margin-bottom:10px;display:block}.local-card strong{font-size:11px;font-weight:600;display:block}.local-card p{color:var(--muted);margin:7px 0 15px;font-size:10px;line-height:1.8}.tiny-status{letter-spacing:.1px;color:var(--green);align-items:center;gap:6px;font-size:8px;display:flex}.tiny-status i,.mini-dot,.status-dot{background:var(--green);border-radius:50%;width:5px;height:5px;display:inline-block}.profile{border-top:1px solid var(--line);align-items:center;gap:10px;margin-top:15px;padding:19px 7px 0;display:flex}.avatar{background:var(--purple-soft);width:34px;height:34px;color:var(--purple);border-radius:50%;place-items:center;font-size:9px;font-weight:700;display:grid}.profile strong{font-size:10px;font-weight:600;display:block}.profile small{color:var(--muted);margin-top:4px;font-size:9px;display:block}.profile-dot{background:var(--green);border-radius:50%;width:5px;height:5px;margin-left:auto}.workspace{flex:1;min-width:0;margin-left:242px}.topbar{border-bottom:1px solid var(--line);background:var(--surface);justify-content:space-between;align-items:center;gap:14px;height:77px;padding:0 39px;display:flex}.breadcrumbs{color:var(--muted);align-items:center;gap:13px;font-size:11px;display:flex}.breadcrumbs strong{color:var(--text);font-weight:500}.desktop-crumb{align-items:center;gap:13px;display:flex}.topbar-actions{align-items:center;gap:19px;display:flex}.saved-status{color:var(--muted);align-items:center;gap:7px;font-size:10px;display:flex}.saved-status.error{color:var(--orange)}.saved-status.error .status-dot{background:var(--orange)}.topbar-divider{background:var(--line);width:1px;height:21px}.icon-button{min-width:34px;min-height:34px;color:var(--muted);border-radius:8px;justify-content:center;align-items:center;transition:background .15s;display:inline-flex}.icon-button:hover{background:var(--purple-soft);color:var(--purple)}.theme-toggle{border:1px solid var(--line);border-radius:50%;width:33px;height:33px}.top-avatar{border:3px solid var(--surface);outline:1px solid var(--line);background:var(--purple-soft);width:31px;height:31px;color:var(--purple);border-radius:50%;place-items:center;font-size:10px;font-weight:600;display:grid}.menu-button{display:none}main{max-width:1540px;margin:0 auto;padding:35px 39px 0}.page-heading{justify-content:space-between;align-items:center;gap:20px;margin:0 0 29px;display:flex}.eyebrow{letter-spacing:1.65px;color:var(--muted);margin-bottom:9px;font-size:9px;font-weight:600}h1{letter-spacing:-1.15px;font-size:30px;font-weight:650;line-height:1.25}.page-heading>div>p:last-child{color:var(--muted);margin-top:10px;font-size:12px;line-height:1.7}.purple-text{color:var(--purple)}.workspace-badge{border:1px solid var(--line);background:var(--surface);color:var(--muted);white-space:nowrap;border-radius:6px;align-items:center;gap:6px;margin-top:21px;padding:8px 10px;font-size:9px;display:flex}.hero-row{grid-template-columns:minmax(0,2.2fr) minmax(235px,1fr);gap:20px;margin-bottom:22px;display:grid}.welcome-card{border-radius:var(--radius);background:linear-gradient(108deg,#eeebfc,#f2f1fd 60%,#e9e9fb);border:1px solid #e8e4f8;min-height:277px;padding:28px 29px;position:relative;overflow:hidden}.welcome-copy{z-index:2;position:relative}.pill{letter-spacing:1px;color:#7d6bb6;background:#ffffff70;border:1px solid #ffffff80;border-radius:5px;align-items:center;gap:5px;padding:5px 7px;font-size:8px;font-weight:650;display:inline-flex}.welcome-card h2{letter-spacing:-.7px;color:#342e58;margin-top:13px;font-size:30px;font-weight:600;line-height:1.2}.welcome-card p{color:#827b9a;margin:12px 0 19px;font-size:11px;line-height:1.8}.button{border:1px solid #0000;border-radius:7px;justify-content:center;align-items:center;gap:9px;min-height:39px;padding:10px 15px;font-size:11px;font-weight:550;line-height:1.3;transition:background .15s,transform .15s;display:inline-flex}.button:hover{transform:translateY(-1px)}.primary{color:#fff;background:#7763d9;box-shadow:0 4px 9px #7763d918}.primary:hover{background:#6551c5}.secondary{background:var(--surface);border-color:var(--line);color:var(--text)}.secondary:hover{background:var(--bg)}.hero-footnote{color:#9187ad;margin-top:11px;font-size:8px;display:block}.flight-drawing{color:#8470c7;opacity:.75;width:52%;height:85%;position:absolute;top:22px;right:-20px}.rhythm-card{border:1px solid var(--line);background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:23px 22px}.section-inline{justify-content:space-between;align-items:center;gap:9px;display:flex}.small-heading{letter-spacing:1.3px;color:var(--muted);font-size:8px;font-weight:650}.icon-well{border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;display:inline-flex}.icon-well.purple,.badge.purple{color:var(--purple);background:var(--purple-soft)}.icon-well.blue{color:var(--blue);background:var(--blue-soft)}.icon-well.orange{color:var(--orange);background:var(--orange-soft)}.icon-well.green,.badge.green{color:var(--green);background:var(--green-soft)}.rhythm-number{letter-spacing:-1.6px;margin-top:16px;font-size:39px;font-weight:600;line-height:1}.rhythm-number>span{letter-spacing:0;color:var(--muted);margin-left:9px;font-size:12px;font-weight:400}.rhythm-card>p{color:var(--muted);margin:10px 0 22px;font-size:10px;line-height:1.5}.week-grid{justify-content:space-between;gap:5px;display:flex}.week-grid>div{text-align:center;flex-direction:column;align-items:center;gap:8px;display:flex}.day-dot{border:1px dashed var(--line);background:var(--bg);border-radius:50%;place-items:center;width:25px;height:25px;display:grid}.day-dot>span{background:var(--subtle);opacity:.6;border-radius:50%;width:3px;height:3px}.day-dot.done{background:var(--green-soft);color:var(--green);border:1px solid var(--green)}.week-grid small{color:var(--subtle);font-size:8px}.rhythm-footer{border-top:1px solid var(--line);color:var(--muted);align-items:center;gap:7px;margin-top:18px;padding-top:13px;font-size:9px;display:flex}.rhythm-footer .mini-dot{background:var(--purple)}:root[data-theme=dark] .welcome-card{background:linear-gradient(110deg,#27223d,#28233e 60%,#25243d);border-color:#37304e}:root[data-theme=dark] .welcome-card h2{color:#e4ddff}:root[data-theme=dark] .welcome-card p{color:#aaa0c6}:root[data-theme=dark] .pill{color:#c2b3ee;background:#ffffff06;border-color:#ffffff0c}:root[data-theme=dark] .flight-drawing{color:#b9a1f6;opacity:.6}:root[data-theme=dark] .hero-footnote{color:#a89bbf}.stats-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:15px;margin-bottom:34px;display:grid}.stat-card{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:12px;padding:17px 18px 18px}.stat-title{color:var(--muted);justify-content:space-between;align-items:center;gap:6px;font-size:10px;display:flex}.stat-title .icon-well{border-radius:8px;width:28px;height:28px}.stat-value{letter-spacing:-.9px;margin:7px 0 9px;font-size:27px;font-weight:600;line-height:1.2;display:block}.stat-note{color:var(--subtle);font-size:8px;line-height:1.6;display:block}.section-heading{justify-content:space-between;align-items:center;gap:18px;margin-bottom:19px;display:flex}.section-heading h2{letter-spacing:-.35px;align-items:center;gap:9px;font-size:16px;font-weight:600;display:flex}.section-heading p{color:var(--muted);margin-top:6px;font-size:10px;line-height:1.6}.count-badge{background:var(--purple-soft);color:var(--purple);border-radius:5px;padding:3px 5px;font-size:9px;font-weight:600}.search-field{border:1px solid var(--line);background:var(--surface);width:221px;color:var(--subtle);border-radius:7px;align-items:center;gap:8px;padding:9px 11px;display:flex}.search-field:focus-within{outline:2px solid var(--purple);outline-offset:2px}.search-field input{width:100%;min-width:0;color:var(--text);background:0 0;border:0;outline:none;font-size:10px}.search-field input::placeholder{color:var(--subtle)}.search-field input:focus-visible{outline:0}.subjects-section{scroll-margin-top:20px}.subject-grid{grid-template-columns:repeat(3,minmax(0,1fr));align-items:start;gap:19px;display:grid}.subject-card{border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);border-radius:13px;overflow:hidden}.subject-art{background:var(--purple-soft);height:127px;color:var(--purple);border-radius:8px;margin:7px 7px 0;position:relative;overflow:hidden}.subject-card.blue .subject-art{background:var(--blue-soft);color:var(--blue)}.subject-card.orange .subject-art{background:var(--orange-soft);color:var(--orange)}.subject-number{letter-spacing:1.35px;opacity:.65;z-index:1;font-size:7px;font-weight:600;position:absolute;top:14px;left:14px}.subject-label{z-index:1;opacity:.8;font-size:8px;font-weight:500;position:absolute;bottom:13px;left:14px}.art-grid{opacity:.035;background-image:linear-gradient(currentColor 1px,#0000 1px),linear-gradient(90deg,currentColor 1px,#0000 1px);background-size:22px 22px;position:absolute;inset:0}.art-orbit{opacity:.12;border:1px solid;border-radius:50%;width:145px;height:145px;position:absolute;top:-8px;right:17px}.orbit-two{opacity:.22;border-style:dashed;width:110px;height:110px;top:9px;right:35px}.subject-illustration{opacity:.7;position:absolute;top:29px;right:55px;transform:rotate(-8deg)}.blue .subject-illustration{right:53px;transform:rotate(-25deg)}.orange .subject-illustration{right:55px;transform:rotate(5deg)}.art-plus{opacity:.5;font-size:15px;position:absolute;bottom:12px;right:15px}.subject-body{padding:19px 18px 15px}.subject-title{justify-content:space-between;align-items:center;gap:7px;display:flex}.subject-title h3{letter-spacing:-.4px;font-size:16px;font-weight:600}.subject-title>span{color:var(--subtle);white-space:nowrap;font-size:7px}.subject-body>p{color:var(--muted);max-width:230px;min-height:36px;margin-top:8px;font-size:10px;line-height:1.8}.subject-meta{color:var(--muted);align-items:center;gap:6px;margin:17px 0 14px;font-size:8px;display:flex}.hollow-dot{border:1px solid var(--subtle);border-radius:50%;flex-shrink:0;width:5px;height:5px;display:inline-block}.subject-buttons{align-items:center;gap:9px;display:flex}.subject-start{background:var(--bg);border:1px solid var(--line);flex:1;justify-content:space-between;min-height:34px;padding:9px 11px;font-size:10px}.subject-start:hover{background:var(--purple-soft);color:var(--purple)}.subject-buttons>.icon-button{border:1px solid var(--line);width:34px;height:34px}.mastery-toggle{border-top:1px solid var(--line);background:var(--bg);justify-content:space-between;align-items:center;width:100%;display:flex}@supports (color:color-mix(in lab,red,red)){.mastery-toggle{background:color-mix(in srgb,var(--bg) 60%,var(--surface))}}.mastery-toggle{text-align:left;gap:7px;padding:13px 16px;font-size:9px}.mastery-toggle>span{align-items:center;gap:7px;display:flex}.mastery-toggle>span:first-child{color:var(--muted);font-weight:500}.mastery-summary{color:var(--subtle);white-space:nowrap;font-size:7px}.mastery-summary svg{transition:transform .18s}.rotated{transform:rotate(180deg)}.mastery-toggle:hover{background:var(--purple-soft)}.mastery-content{border-top:1px solid var(--line);padding:13px 14px 14px}.mastery-content>p{color:var(--muted);margin-bottom:9px;font-size:9px;line-height:1.8}.topic-row{text-align:left;border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:8px;width:100%;padding:10px 0;font-size:9px;display:flex}.topic-row:last-child{border-bottom:0}.topic-row:hover{color:var(--purple)}.topic-row>span:last-child{color:var(--muted);white-space:nowrap;align-items:center;font-size:7px;display:flex}.search-empty{text-align:center;border:1px dashed var(--line);color:var(--muted);border-radius:12px;padding:30px;font-size:12px}.search-empty>svg{margin:auto auto 10px}.search-empty>p{margin-bottom:12px}.modes-section{margin-top:33px}.mode-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:15px;display:grid}.mode-card{text-align:left;border:1px solid var(--line);background:var(--surface);border-radius:12px;flex-direction:column;align-items:flex-start;padding:18px 16px;transition:border-color .15s,transform .15s;display:flex}.mode-card:hover{border-color:var(--purple);transform:translateY(-2px)}.mode-card h3{justify-content:space-between;align-items:center;gap:6px;width:100%;margin-top:13px;font-size:11px;font-weight:600;display:flex}.mode-card h3>svg{color:var(--subtle);width:12px}.mode-card p{color:var(--muted);flex:1;max-width:175px;margin:8px 0 15px;font-size:9px;line-height:1.8}.mode-label{background:var(--purple-soft);color:var(--purple);border-radius:4px;padding:4px 6px;font-size:7px}.mode-label.planned{color:var(--muted);background:var(--bg)}.muted{color:var(--muted)}.small-text{font-size:9px}.foundation-note{color:var(--muted);align-items:center;gap:11px;padding:18px 0 3px;display:flex}.foundation-note>svg{color:var(--green)}.foundation-note p{flex:1;font-size:9px;line-height:1.8}.foundation-note strong{color:var(--text);font-weight:550}.text-button{color:var(--purple);white-space:nowrap;justify-content:center;align-items:center;gap:6px;padding:5px 0;font-size:10px;display:inline-flex}.text-button:hover{text-decoration:underline}.footer{border-top:1px solid var(--line);color:var(--subtle);justify-content:space-between;align-items:center;gap:15px;margin-top:27px;padding:19px 0 22px;font-size:8px;line-height:1.7;display:flex}.footer>span:first-child{white-space:nowrap;align-items:center;gap:6px;display:flex}.footer-dot{margin:0 2px}.footer>span:last-child{text-align:right}.panel{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);padding:25px}.panel-heading{justify-content:space-between;align-items:center;gap:15px;display:flex}.panel h2{letter-spacing:-.3px;font-size:16px;font-weight:600}.panel-heading>svg{color:var(--muted)}.badge{white-space:nowrap;border-radius:5px;align-items:center;gap:5px;padding:5px 8px;font-size:9px;display:inline-flex}.badge.neutral{background:var(--bg);color:var(--muted);border:1px solid var(--line)}.subject-tabs{background:var(--surface);border:1px solid var(--line);border-radius:10px;gap:6px;margin-bottom:24px;padding:5px;display:inline-flex}.subject-tabs button{color:var(--muted);border-radius:6px;align-items:center;gap:8px;padding:10px 15px;font-size:11px;display:flex}.subject-tabs .selected{background:var(--purple-soft);color:var(--purple)}.study-layout{grid-template-columns:minmax(0,2.2fr) minmax(230px,1fr);align-items:start;gap:22px;display:grid}.empty-state{text-align:center;max-width:560px;margin:auto;padding:52px 20px}.empty-icon{background:var(--purple-soft);width:66px;height:66px;color:var(--purple);border-radius:19px;place-items:center;margin:0 auto 21px;display:grid;transform:rotate(-4deg)}.empty-icon svg{transform:rotate(4deg)}.empty-state h2{letter-spacing:-.6px;font-size:21px;font-weight:550;line-height:1.4}.empty-description{color:var(--muted);margin-top:14px;font-size:12px;line-height:1.9}.empty-description>p+p{margin-top:12px}.empty-description .badge{margin-top:18px}.empty-action{justify-content:center;margin-bottom:25px;display:flex}.topic-panel>.icon-well{margin-bottom:20px}.topic-panel>p{color:var(--muted);margin-top:8px;font-size:11px;line-height:1.8}.topic-panel ul{margin:20px 0 0;padding:0;list-style:none}.topic-panel li{border-top:1px solid var(--line);color:var(--muted);align-items:center;gap:9px;padding:14px 0;font-size:10px;line-height:1.6;display:flex}.topic-note{background:var(--bg);color:var(--muted);border-radius:8px;gap:9px;margin-top:16px;padding:13px;font-size:9px;line-height:1.8;display:flex}.notice{border:1px solid var(--line);background:var(--surface);color:var(--muted);border-radius:10px;align-items:center;gap:11px;margin-top:22px;padding:18px;font-size:11px;line-height:1.8;display:flex}.notice>svg{color:var(--green)}.error-notice{background:var(--orange-soft);color:var(--orange);margin:0 0 23px}.error-notice>svg{color:var(--orange)}.error-notice>span{flex:1}.exam-config{margin-top:28px}.exam-config fieldset{border:0;margin:0 0 27px;padding:0}.exam-config legend{margin-bottom:12px;font-size:11px;font-weight:550}.option-grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.option-button{border:1px solid var(--line);text-align:left;border-radius:10px;flex-direction:column;align-items:flex-start;padding:17px;display:flex;position:relative}.option-button>svg{color:var(--muted);margin-bottom:11px}.option-button strong{font-size:12px;font-weight:500}.option-button span{color:var(--muted);margin-top:5px;font-size:10px}.option-button.selected,.length-options .selected{border-color:var(--purple);background:var(--purple-soft)}.option-button .option-check{color:var(--purple);position:absolute;top:13px;right:13px}.length-options{flex-wrap:wrap;gap:10px;display:flex}.length-options>button{border:1px solid var(--line);border-radius:7px;padding:10px 14px;font-size:11px}.field-help{color:var(--muted);margin-top:15px;font-size:10px;line-height:1.9}.exam-config+.empty-state{border-top:1px solid var(--line);padding-top:35px}.settings-grid{grid-template-columns:1fr 1fr;gap:22px;display:grid}.panel-description{color:var(--muted);margin-top:12px;font-size:12px;line-height:1.9}.theme-options{gap:17px;margin-top:23px;display:flex}.theme-option{border:1px solid var(--line);text-align:left;border-radius:10px;flex:1;min-width:0;padding:8px}.theme-option.selected{border-color:var(--purple);box-shadow:0 0 0 1px var(--purple)}.theme-preview{background:#f7f8fc;border:1px solid #eceef5;border-radius:5px;height:106px;display:flex;overflow:hidden}.theme-preview>span{background:#fff;border-right:1px solid #e9e9ef;width:25%;display:block}.theme-preview>div{flex:1;align-items:center;gap:5px;padding:16px 12px;display:flex}.theme-preview i{background:#fff;border:1px solid #e9e9ef;border-radius:3px;flex:1;height:41px;display:block}.theme-preview.dark{background:#10121b;border-color:#303445}.theme-preview.dark>span{background:#191c28;border-color:#303445}.theme-preview.dark i{background:#27223d;border-color:#39334c}.theme-option>span{align-items:center;gap:7px;padding:12px 3px 4px;font-size:11px;display:flex}.theme-option>span>svg:last-child:not(:first-child){color:var(--purple);margin-left:auto}.backup-actions{flex-wrap:wrap;gap:12px;margin-top:26px;display:flex}.backup-summary{color:var(--muted);flex-wrap:wrap;gap:17px;margin-top:23px;font-size:10px;display:flex}.backup-summary>span{align-items:center;gap:6px;display:flex}.about-panel{grid-column:1/-1}.milestone-list{margin-top:20px}.milestone-list>div{border-top:1px solid var(--line);color:var(--muted);align-items:center;gap:13px;padding:18px 0;font-size:11px;display:flex}.milestone-list>div>span:first-of-type{flex:1;line-height:1.8}.milestone-list>div>svg{color:var(--purple)}.progress-summary{grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:22px;display:grid}.progress-summary strong{margin-top:13px;font-size:34px;font-weight:550;display:block}.toast{z-index:100;background:var(--surface);border:1px solid var(--purple);color:var(--text);border-radius:12px;align-items:center;gap:11px;width:max-content;max-width:calc(100vw - 40px);padding:12px 14px;font-size:12px;line-height:1.7;display:flex;position:fixed;bottom:24px;left:calc(50% + 121px);transform:translate(-50%);box-shadow:0 12px 40px #0002}.toast[hidden]{display:none}.toast>svg{color:var(--purple)}.toast>span{max-width:500px}.confirm-dialog{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:18px;width:460px;max-width:calc(100vw - 30px);margin:auto;padding:26px;box-shadow:0 20px 60px #0003}.confirm-dialog::backdrop,.mobile-nav::backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0b10216b}.dialog-top{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.confirm-dialog h2{letter-spacing:-.6px;font-size:23px;font-weight:600}.confirm-dialog p{color:var(--muted);margin-top:14px;font-size:12px;line-height:1.9}.dialog-actions{justify-content:flex-end;gap:10px;margin-top:26px;display:flex}.loading{min-height:100vh;color:var(--muted);background:var(--bg);flex-direction:column;justify-content:center;align-items:center;gap:15px;font-size:13px;display:flex}.mobile-nav{display:none}@media(min-width:1550px){main{padding-top:42px}.hero-row{grid-template-columns:2.6fr 1fr}.welcome-card{min-height:300px;padding:33px}.welcome-card h2{font-size:35px}.flight-drawing{right:12px}.stat-note,.subject-title>span{font-size:10px}.subject-body>p{max-width:280px;font-size:12px}.subject-meta{font-size:10px}.mastery-toggle{font-size:11px}.mastery-summary{font-size:9px}.mode-card p{max-width:220px;font-size:11px}.mode-card h3{font-size:13px}}@media(max-width:1150px){.sidebar{width:209px;padding-left:13px;padding-right:13px}.brand{gap:9px;font-size:15px}.brand small{font-size:6.5px}.workspace{margin-left:209px}.topbar{padding:0 27px}main{padding:29px 27px 0}.page-heading h1{font-size:27px}.workspace-badge{display:none}.hero-row{grid-template-columns:minmax(0,1.9fr) minmax(210px,1fr);gap:16px}.welcome-card{padding:26px 23px}.welcome-card h2{font-size:28px}.flight-drawing{opacity:.45;width:54%;right:-47px}.rhythm-card{padding:21px 16px}.stat-card{padding:14px 12px}.stat-title{font-size:9px}.stat-title .icon-well{width:24px;height:24px}.stat-note{font-size:7px}.subject-grid{gap:12px}.subject-body{padding:16px 13px}.subject-title{flex-direction:column;align-items:flex-start;gap:4px}.subject-title>span{font-size:8px}.subject-body>p{min-height:54px}.mastery-toggle{gap:4px;padding:12px 10px;font-size:8px}.mastery-toggle>span{gap:4px}.mastery-summary{font-size:6px}.subject-start{font-size:9px}.mode-grid{gap:12px}.mode-card{padding:15px 12px}.mode-card h3{font-size:10px}.mode-card p,.foundation-note>.text-button{font-size:8px}.toast{left:calc(50% + 104px)}.subject-illustration,.blue .subject-illustration,.orange .subject-illustration{right:35px}.art-orbit{right:-3px}.orbit-two{right:15px}.study-layout{grid-template-columns:minmax(0,1.7fr) minmax(200px,1fr);gap:16px}.panel{padding:22px}.option-grid{gap:9px}.option-button{padding:14px}.option-button span{font-size:9px}.length-options{gap:7px}.length-options button{padding:9px;font-size:10px}.settings-grid{gap:16px}.backup-actions .button{padding:10px;font-size:10px}.footer{font-size:7px}}@media(max-width:900px){.sidebar{width:190px;padding-left:10px;padding-right:10px}.workspace{margin-left:190px}.brand{gap:8px;font-size:13px}.brand-icon{border-radius:10px;width:34px;height:34px}.brand small{letter-spacing:1px;font-size:5.9px}.nav-item{gap:9px;padding:10px;font-size:11px}.sidebar-label{margin-left:10px;font-size:8px}.local-card{margin-left:4px;margin-right:4px;padding:13px 11px}.local-card strong{font-size:10px}.local-card p{font-size:9px}.profile{gap:7px}.profile strong{font-size:9px}.profile small{font-size:8px}.topbar{padding:0 22px}main{padding:26px 22px 0}.hero-row{grid-template-columns:1fr}.rhythm-card{display:none}.welcome-card{min-height:265px}.flight-drawing{opacity:.7;width:51%;right:0}.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:28px}.stat-note{font-size:9px}.stat-title{font-size:11px}.stat-card{padding:16px}.subject-grid{grid-template-columns:1fr}.subject-art{height:110px}.subject-title{flex-direction:row;align-items:center}.subject-body>p{max-width:100%;min-height:0}.subject-illustration,.blue .subject-illustration,.orange .subject-illustration{top:20px;right:63px}.art-orbit{top:-18px;right:25px}.orbit-two{top:0;right:43px}.subject-body{padding:20px}.subject-body>p{font-size:11px}.subject-title h3{font-size:18px}.subject-start{font-size:11px}.subject-meta{font-size:9px}.mastery-toggle{padding:15px 20px;font-size:11px}.mastery-summary{font-size:9px}.topic-row{padding:14px 0;font-size:11px}.topic-row>span:last-child{font-size:9px}.mastery-content{padding:15px 20px}.mastery-content>p{font-size:10px}.mode-grid{grid-template-columns:repeat(2,1fr)}.mode-card{padding:20px}.mode-card h3{font-size:12px}.mode-card p{font-size:10px}.mode-label{font-size:8px}.section-heading{flex-wrap:wrap;gap:14px}.search-field{width:100%}.search-field input{font-size:12px}.foundation-note{flex-wrap:wrap;align-items:flex-start}.foundation-note p{font-size:10px}.foundation-note>.text-button{margin-left:29px;font-size:10px}.footer{flex-direction:column;align-items:flex-start;gap:8px;font-size:8px}.footer>span:last-child{text-align:left}.toast{max-width:calc(100vw - 230px);left:calc(50% + 95px)}.study-layout{grid-template-columns:1fr}.topic-panel{display:none}.settings-grid{grid-template-columns:1fr}.about-panel{grid-column:auto}.progress-summary{gap:12px}.progress-summary .panel{padding:18px}.progress-summary .small-heading{font-size:7px}.panel h2{font-size:15px}.panel .badge{font-size:8px}.desktop-crumb{display:none}}@media(max-width:600px){.sidebar{display:none}.workspace{margin-left:0}.topbar{height:65px;padding:0 18px}.breadcrumbs{gap:8px}.menu-button{display:inline-flex}.topbar-actions{gap:10px}.saved-status{font-size:9px}.topbar-divider,.top-avatar{display:none}.theme-toggle{width:32px;height:32px}.mobile-nav[open]{background:var(--sidebar);border:0;border-right:1px solid var(--line);width:278px;max-width:calc(100vw - 45px);height:100dvh;max-height:100dvh;color:var(--text);flex-direction:column;margin:0;padding:29px 18px 18px;display:flex;position:fixed;inset:0 auto 0 0;overflow:auto}.mobile-nav .brand{font-size:16px}.mobile-nav .brand small{font-size:7px}.mobile-nav .nav-item{padding:12px;font-size:12px}.mobile-nav .sidebar-bottom{padding-top:26px}.mobile-close{min-width:26px;min-height:26px;position:absolute;top:6px;right:6px}.mobile-nav .local-card{display:none}.mobile-nav .profile strong{font-size:11px}.mobile-nav .profile small{font-size:10px}main{padding:25px 18px 0}.page-heading{flex-wrap:wrap;align-items:flex-start;margin-bottom:23px}.page-heading h1{letter-spacing:-1px;font-size:26px;line-height:1.35}.page-heading>div>p:last-child{max-width:310px;font-size:11px}.eyebrow{letter-spacing:1.3px;font-size:8px}.welcome-card{min-height:275px;padding:25px 22px}.welcome-card h2{font-size:29px}.welcome-card p{font-size:10px}.pill{font-size:6.5px}.flight-drawing{opacity:.37;width:55%;top:38px;right:-38px}.hero-footnote{font-size:7px}.stats-grid{gap:10px;margin-bottom:28px}.stat-card{padding:14px 12px}.stat-title{font-size:9px}.stat-title .icon-well{width:25px;height:25px}.stat-note{font-size:8px}.stat-value{font-size:27px}.section-heading h2{font-size:16px}.section-heading p{font-size:10px}.subject-grid{gap:16px}.subject-art{height:117px}.subject-body{padding:18px}.subject-title h3{font-size:18px}.subject-title>span{font-size:9px}.subject-body>p{font-size:11px}.mastery-toggle{padding:15px 18px;font-size:11px}.mode-grid{gap:11px}.mode-card{padding:16px 13px}.mode-card h3{font-size:11px}.mode-card p{font-size:9px}.mode-label{font-size:7px}.modes-section .small-text{display:none}.foundation-note{gap:9px;padding-top:21px}.foundation-note p{font-size:9px}.foundation-note>.text-button{margin-top:-4px}.footer{margin-top:22px;padding-bottom:20px}.toast{max-width:calc(100vw - 28px);font-size:11px;bottom:15px;left:50%}.subject-tabs{justify-content:space-between;gap:3px;width:100%;padding:4px}.subject-tabs button{flex:1;justify-content:center;gap:6px;padding:10px 8px;font-size:10px}.panel{padding:21px 18px}.panel-heading{flex-wrap:wrap;gap:12px}.panel h2{font-size:15px}.empty-state{padding:40px 0}.empty-state h2{font-size:21px}.empty-description{font-size:11px}.empty-description .badge{font-size:8px}.notice{align-items:flex-start;padding:15px;font-size:10px}.error-notice{flex-wrap:wrap}.error-notice>span{min-width:180px}.option-button{padding:15px 12px}.option-button span{font-size:9px;line-height:1.6}.option-button strong{font-size:11px}.option-button .option-check{top:10px;right:10px}.length-options{gap:7px}.length-options>button{flex:1;padding:10px 8px;font-size:9px}.field-help{font-size:9px}.theme-options{gap:14px}.theme-preview{height:96px}.backup-actions{gap:10px}.backup-actions .button{font-size:10px}.milestone-list>div{flex-wrap:wrap;gap:10px;font-size:10px}.milestone-list>div>span:first-of-type{min-width:200px}.milestone-list .badge{margin-left:28px}.progress-summary{gap:8px}.progress-summary .panel{padding:15px 11px}.progress-summary .small-heading{letter-spacing:.7px;font-size:6px}.progress-summary strong{font-size:28px}}@media(prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@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}.topic-name{min-width:0;display:block;text-align:left;line-height:1.65}.topic-name small{display:block;font-size:8px;letter-spacing:.4px;color:var(--purple);margin-bottom:3px}.topic-name strong{font-size:10px;font-weight:450;white-space:normal;overflow-wrap:anywhere}.topic-row{align-items:flex-start;gap:12px;padding:12px 0}.topic-row .topic-status{padding-top:17px;font-size:8px;white-space:nowrap}.mastery-content>.acs-source{margin-top:13px}.acs-source{display:inline-flex;align-items:center;gap:7px;font-size:10px;line-height:1.7;color:var(--purple);padding:5px 0}.acs-source:hover{text-decoration:underline}.topic-panel li{align-items:flex-start}.topic-panel li>.hollow-dot{margin-top:10px}.exam-facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:13px;padding:19px 17px;border:1px solid var(--line);border-radius:10px;background:var(--bg)}.exam-facts>div>span{font-size:7px;font-weight:600;letter-spacing:1px;color:var(--muted);display:block;line-height:1.8}.exam-facts strong{font-size:20px;font-weight:550;display:block;margin-top:7px}.exam-bank-status{display:flex;align-items:flex-start;gap:9px;color:var(--muted);background:var(--purple-soft);border-radius:8px;padding:14px;margin:19px 0 26px;font-size:10px;line-height:1.9}.exam-bank-status svg{margin-top:3px;color:var(--purple)}@media(max-width:1150px){.exam-facts{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.topic-name strong{font-size:10px}}@media(max-width:600px){.topic-name strong{font-size:11px}.topic-name small{font-size:9px}.topic-row .topic-status{font-size:8px}.topic-row{padding:14px 0}.mastery-content>.acs-source{font-size:11px}.exam-facts>div>span{font-size:8px}.exam-bank-status{font-size:10px}}
