@layer theme,base,components,utilities;@layer theme{:root,:host{--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--default-font-family: var(--sans);--default-mono-font-family: var(--font-mono)}}@layer base{*,:after,:before,::backdrop,::file-selector-button{box-sizing:border-box;margin:0;padding:0;border:0 solid}html,:host{line-height:1.5;-webkit-text-size-adjust:100%;tab-size:4;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{font-size:75%;line-height:0;position:relative;vertical-align:baseline}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{display:block;vertical-align:middle}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea,::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;border-radius:0;background-color:transparent;opacity:1}: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)){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,::-webkit-datetime-edit-year-field,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute-field,::-webkit-datetime-edit-second-field,::-webkit-datetime-edit-millisecond-field,::-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]),::file-selector-button{appearance:button}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer utilities;@layer base{:root{--bg: #f2f0e9;--bg-deep: #e7e3d8;--surface: rgba(255, 255, 252, .84);--surface-solid: #fffefa;--surface-raised: #ffffff;--ink: #15191b;--muted: #60696d;--faint: #656e72;--line: rgba(27, 35, 39, .13);--line-strong: rgba(27, 35, 39, .22);--ember: #e94f24;--ember-bright: #ff6a3d;--ember-soft: #ffe1d5;--ember-text: #b93615;--on-ember: #21130f;--focus-ring: #b93615;--gold: #c97b19;--gold-soft: #ffebc9;--gold-text: #844800;--steel: #2f67c8;--steel-soft: #dfeaff;--success: #157a55;--success-soft: #d9f2e7;--danger: #b53630;--danger-soft: #fae1de;--mastery-not-started-bg: #e3e7e8;--mastery-not-started-text: #3f4a4f;--mastery-introduced-bg: #dce9ff;--mastery-introduced-text: #174b96;--mastery-recalled-bg: #ede1ff;--mastery-recalled-text: #63319a;--mastery-applied-bg: #fff0bd;--mastery-applied-text: #714700;--mastery-retained-bg: #d6f2e5;--mastery-retained-text: #126344;--mastery-exam-ready-bg: #ffdcd0;--mastery-exam-ready-text: #9f2c0e;--shadow: 0 24px 70px rgba(24, 32, 35, .09);--shadow-small: 0 10px 32px rgba(24, 32, 35, .08);--display: "Avenir Next Condensed", "Arial Narrow", "Helvetica Neue", sans-serif;--sans: "Avenir Next", Avenir, Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;--safe-top: env(safe-area-inset-top, 0px);--safe-right: env(safe-area-inset-right, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-left: env(safe-area-inset-left, 0px)}[data-theme=dark]{--bg: #0b0f12;--bg-deep: #10171b;--surface: rgba(20, 27, 31, .8);--surface-solid: #151c20;--surface-raised: #1a2328;--ink: #f1f4f2;--muted: #a1adb2;--faint: #808d93;--line: rgba(218, 230, 232, .12);--line-strong: rgba(218, 230, 232, .21);--ember: #ff7148;--ember-bright: #ff8a68;--ember-soft: #44271f;--ember-text: #ff8665;--focus-ring: #ff8665;--gold: #f0ac4d;--gold-soft: #3d2d19;--gold-text: #f0ac4d;--steel: #89adff;--steel-soft: #1d2c4b;--success: #63d6a5;--success-soft: #163b2e;--danger: #ff8b83;--danger-soft: #462522;--mastery-not-started-bg: #283137;--mastery-not-started-text: #d8e0e3;--mastery-introduced-bg: #1d3557;--mastery-introduced-text: #b2d2ff;--mastery-recalled-bg: #392652;--mastery-recalled-text: #e1c6ff;--mastery-applied-bg: #483510;--mastery-applied-text: #ffe19b;--mastery-retained-bg: #123d30;--mastery-retained-text: #94e8c3;--mastery-exam-ready-bg: #4a241a;--mastery-exam-ready-text: #ffc1aa;--shadow: 0 28px 80px rgba(0, 0, 0, .32);--shadow-small: 0 12px 36px rgba(0, 0, 0, .26)}*{box-sizing:border-box}html{min-width:320px;background:var(--bg);color-scheme:light;scroll-behavior:smooth;text-rendering:optimizeLegibility}html[data-theme=dark]{color-scheme:dark}body{min-height:100dvh;margin:0;overflow-x:hidden;background:radial-gradient(circle at 79% -8%,var(--ember),transparent 32rem),radial-gradient(circle at 8% 48%,var(--steel),transparent 28rem),linear-gradient(155deg,var(--bg) 0%,var(--bg-deep) 120%);@supports (color: color-mix(in lab,red,red)){background:radial-gradient(circle at 79% -8%,color-mix(in srgb,var(--ember) 14%,transparent),transparent 32rem),radial-gradient(circle at 8% 48%,color-mix(in srgb,var(--steel) 8%,transparent),transparent 28rem),linear-gradient(155deg,var(--bg) 0%,var(--bg-deep) 120%)}color:var(--ink);font-family:var(--sans)}body:before{position:fixed;inset:0;z-index:-1;background-image:radial-gradient(circle,var(--line) .75px,transparent .75px);background-size:22px 22px;content:"";mask-image:linear-gradient(to bottom,black,transparent 72%);pointer-events:none}button,input,select,textarea{color:inherit;font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--focus-ring);outline-offset:3px}h1[tabindex="-1"]:focus-visible{outline:3px solid var(--focus-ring);outline-offset:5px}::selection{background:var(--ember-soft)}}@layer components{.app-frame{width:min(100%,90rem);min-height:100dvh;margin-inline:auto}.skip-link{position:fixed;top:calc(.75rem + var(--safe-top));left:calc(.75rem + var(--safe-left));z-index:100;translate:0 -200%;border-radius:999px;padding:.7rem 1rem;background:var(--ink);color:var(--bg);font-weight:750;transition:translate .15s ease}.skip-link:focus{translate:0}.topbar{position:sticky;top:0;z-index:30;min-height:4.5rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;border-bottom:1px solid var(--line);padding:calc(.75rem + var(--safe-top)) calc(1rem + var(--safe-right)) .75rem calc(1rem + var(--safe-left));background:var(--bg);@supports (color: color-mix(in lab,red,red)){background:color-mix(in srgb,var(--bg) 82%,transparent)}backdrop-filter:blur(20px) saturate(130%)}.brand{min-width:0;display:inline-flex;align-items:center;gap:.7rem}.brand-mark{width:2.35rem;height:2.35rem;display:grid;flex:0 0 auto;place-items:center;border:1px solid var(--ember);@supports (color: color-mix(in lab,red,red)){border:1px solid color-mix(in srgb,var(--ember) 35%,var(--line))}border-radius:.82rem;background:linear-gradient(145deg,var(--ember),var(--surface-solid));@supports (color: color-mix(in lab,red,red)){background:linear-gradient(145deg,color-mix(in srgb,var(--ember) 20%,var(--surface-raised)),var(--surface-solid))}box-shadow:inset 0 1px color-mix(in srgb,white 40%,transparent);color:var(--ember)}.brand strong,.brand small{display:block}.brand strong{overflow:hidden;font-family:var(--display);font-size:1.05rem;letter-spacing:.01em;line-height:1.05;text-overflow:ellipsis;white-space:nowrap}.brand small{margin-top:.22rem;color:var(--muted);font-family:var(--mono);font-size:.62rem;letter-spacing:.04em;text-transform:uppercase}.local-pill,.chip,.status-chip{min-height:1.8rem;display:inline-flex;align-items:center;gap:.38rem;border:1px solid var(--line);border-radius:999px;padding:.34rem .62rem;background:var(--surface);@supports (color: color-mix(in lab,red,red)){background:color-mix(in srgb,var(--surface) 86%,transparent)}color:var(--muted);font-family:var(--mono);font-size:.68rem;font-weight:650;letter-spacing:.025em}.local-pill{display:inline-flex;min-height:2.75rem}.side-nav{position:fixed;right:calc(.75rem + var(--safe-right));bottom:calc(.75rem + var(--safe-bottom));left:calc(.75rem + var(--safe-left));z-index:40;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:.22rem;border:1px solid var(--line-strong);border-radius:1.35rem;padding:.38rem;background:var(--surface-solid);@supports (color: color-mix(in lab,red,red)){background:color-mix(in srgb,var(--surface-solid) 88%,transparent)}box-shadow:var(--shadow);backdrop-filter:blur(24px) saturate(140%)}.nav-item{min-width:0;min-height:3.6rem;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.24rem;border-radius:1rem;color:var(--muted);font-size:.7rem;font-weight:750;transition:background .15s ease,color .15s ease,transform .15s ease}.nav-item[data-active=true]{background:var(--ember-soft);color:var(--ember-text)}.nav-item:active{transform:scale(.97)}.page-shell{width:100%;min-width:0;padding:1.25rem calc(1rem + var(--safe-right)) calc(7rem + var(--safe-bottom)) calc(1rem + var(--safe-left))}.app-footer{display:grid;gap:.9rem;margin-top:clamp(2.5rem,7vw,5rem);border:1px solid var(--line);border-radius:1.15rem;padding:1rem;background:var(--surface-solid);@supports (color: color-mix(in lab,red,red)){background:color-mix(in srgb,var(--surface-solid) 74%,transparent)}}.app-footer p{max-width:66rem;margin:0;color:var(--muted);font-size:.78rem;font-weight:620;line-height:1.55}.footer-links{display:flex;flex-wrap:wrap;gap:.35rem}.footer-links a{min-height:2.75rem;display:inline-flex;align-items:center;border-radius:999px;padding:.65rem .85rem;color:var(--ink);font-size:.8rem;font-weight:760}.footer-links a:hover{background:var(--ember-soft);color:var(--ember-text)}.page-stack{display:grid;gap:1.25rem}.display{margin:0;font-family:var(--display);font-weight:780;letter-spacing:-.045em;line-height:.98}.page-title{max-width:18ch;font-size:clamp(2.4rem,10vw,5.4rem)}.page-lede{max-width:42rem;margin:0;color:var(--muted);font-size:clamp(1rem,2vw,1.15rem);line-height:1.65}.eyebrow{margin:0;color:var(--ember-text);font-family:var(--mono);font-size:.69rem;font-weight:760;letter-spacing:.13em;text-transform:uppercase}.muted{color:var(--muted)}.panel,.soft-panel{border:1px solid var(--line);background:var(--surface);backdrop-filter:blur(18px)}.panel{border-radius:1.5rem;box-shadow:var(--shadow-small)}.soft-panel{border-radius:1.15rem}.panel-pad{padding:clamp(1.1rem,3vw,1.6rem)}.hero-panel{position:relative;isolation:isolate;overflow:hidden;min-height:22rem;display:grid;align-content:end;gap:1.1rem;padding:clamp(1.4rem,5vw,3.5rem);background:linear-gradient(125deg,var(--surface-solid),var(--surface));@supports (color: color-mix(in lab,red,red)){background:linear-gradient(125deg,color-mix(in srgb,var(--surface-solid) 92%,transparent),color-mix(in srgb,var(--surface) 74%,transparent))}}.hero-panel:before,.hero-panel:after{position:absolute;z-index:-1;border:1px solid var(--ember);@supports (color: color-mix(in lab,red,red)){border:1px solid color-mix(in srgb,var(--ember) 30%,transparent)}border-radius:50%;content:"";pointer-events:none}.hero-panel:before{width:27rem;height:27rem;top:-17rem;right:-8rem;box-shadow:0 0 0 2.5rem var(--ember),0 0 0 5rem var(--ember);@supports (color: color-mix(in lab,red,red)){box-shadow:0 0 0 2.5rem color-mix(in srgb,var(--ember) 3%,transparent),0 0 0 5rem color-mix(in srgb,var(--ember) 2%,transparent)}}.hero-panel:after{width:8rem;height:8rem;top:2.4rem;right:4rem;background:radial-gradient(circle at 38% 35%,var(--gold),var(--ember) 55%,#721f12);border:0;box-shadow:0 0 5rem var(--ember);@supports (color: color-mix(in lab,red,red)){box-shadow:0 0 5rem color-mix(in srgb,var(--ember) 28%,transparent)}opacity:.88}.button-row{display:flex;flex-wrap:wrap;gap:.7rem}.button{min-height:3rem;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border:1px solid transparent;border-radius:999px;padding:.72rem 1.05rem;cursor:pointer;font-size:.86rem;font-weight:780;line-height:1;transition:transform .15s ease,filter .15s ease,background .15s ease}.button:hover{filter:brightness(1.06)}.button:active{transform:scale(.975)}.button:disabled{cursor:not-allowed;filter:none;opacity:.45}.button-primary{background:linear-gradient(135deg,var(--ember-bright),var(--ember));box-shadow:0 10px 25px var(--ember);@supports (color: color-mix(in lab,red,red)){box-shadow:0 10px 25px color-mix(in srgb,var(--ember) 24%,transparent)}color:var(--on-ember)}.button-secondary{border-color:var(--line-strong);background:var(--surface-raised);color:var(--ink)}.button-quiet{background:transparent;color:var(--muted)}.button-danger{border-color:var(--danger);@supports (color: color-mix(in lab,red,red)){border-color:color-mix(in srgb,var(--danger) 35%,var(--line))}background:var(--danger-soft);color:var(--danger)}.stats-grid,.module-grid,.map-grid,.error-grid,.settings-grid{display:grid;gap:.85rem}.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stat-card{min-width:0;padding:1.05rem}.stat-value{margin-top:.65rem;font-family:var(--mono);font-size:clamp(1.6rem,8vw,2.4rem);font-weight:760;letter-spacing:-.06em}.stat-label{margin-top:.2rem;color:var(--muted);font-size:.75rem}.section-header{display:flex;align-items:end;justify-content:space-between;gap:1rem;margin-top:.4rem}.section-header h2{margin:.3rem 0 0;font-family:var(--display);font-size:clamp(1.55rem,5vw,2.15rem);letter-spacing:-.035em}.module-card{position:relative;overflow:hidden;display:grid;gap:1rem;padding:1.3rem}.module-card:after{position:absolute;width:5rem;height:5rem;right:-2.4rem;bottom:-2.4rem;border:1rem solid var(--ember);@supports (color: color-mix(in lab,red,red)){border:1rem solid color-mix(in srgb,var(--ember) 6%,transparent)}border-radius:50%;content:""}.module-card h3,.objective-card h3,.error-card h3{margin:0;font-size:1.06rem;letter-spacing:-.015em}.module-card p,.objective-card p,.error-card p{margin:0;color:var(--muted);font-size:.85rem;line-height:1.55}.progress-track{height:.42rem;overflow:hidden;border-radius:999px;background:var(--muted);@supports (color: color-mix(in lab,red,red)){background:color-mix(in srgb,var(--muted) 14%,transparent)}}.progress-fill{height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--ember),var(--gold));transition:width .3s ease}.choice-grid,.confidence-grid,.tag-grid{display:grid;gap:.65rem}.confidence-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.choice-button,.confidence-button,.tag-button{min-height:3.25rem;display:flex;align-items:center;gap:.75rem;border:1px solid var(--line-strong);border-radius:1rem;padding:.85rem 1rem;background:var(--surface-solid);cursor:pointer;text-align:left;transition:border-color .15s ease,background .15s ease,transform .15s ease}.confidence-button{flex-direction:column;justify-content:center;gap:.25rem;text-align:center}.choice-button:hover,.confidence-button:hover,.tag-button:hover,.choice-button[data-selected=true],.confidence-button[data-selected=true],.tag-button[data-selected=true]{border-color:var(--ember);background:var(--ember-soft)}.theme-fieldset .choice-button:focus-within,.file-button:focus-within{outline:3px solid var(--focus-ring);outline-offset:3px}.choice-button[data-correct=true]{border-color:var(--success);background:var(--success-soft)}.choice-button[data-wrong=true]{border-color:var(--danger);background:var(--danger-soft)}.choice-letter{width:1.9rem;height:1.9rem;display:grid;flex:0 0 auto;place-items:center;border-radius:.62rem;background:var(--ink);@supports (color: color-mix(in lab,red,red)){background:color-mix(in srgb,var(--ink) 8%,transparent)}font-family:var(--mono);font-size:.75rem;font-weight:750}.textarea{width:100%;min-height:9rem;resize:vertical;border:1px solid var(--line-strong);border-radius:1rem;padding:1rem;background:var(--surface-solid);line-height:1.55}.input,.select{width:100%;min-height:3rem;border:1px solid var(--line-strong);border-radius:.9rem;padding:.7rem .85rem;background:var(--surface-solid)}.study-frame{max-width:50rem;margin-inline:auto}.study-progress{display:flex;align-items:center;gap:.8rem;margin-bottom:1rem}.study-progress .progress-track{flex:1}.study-card{display:grid;gap:1.35rem;padding:clamp(1.2rem,5vw,2.2rem)}.study-card h1{margin:0;font-family:var(--display);font-size:clamp(1.85rem,7vw,3.1rem);letter-spacing:-.04em;line-height:1.02}.scenario-box,.explain-box,.decision-rule{border-left:3px solid var(--gold);border-radius:0 .9rem .9rem 0;padding:1rem;background:var(--gold-soft);line-height:1.6}.explain-box{border-color:var(--steel);background:var(--steel-soft)}.decision-rule{border-color:var(--ember);background:var(--ember-soft)}.feedback-banner{display:flex;align-items:flex-start;gap:.75rem;border:1px solid var(--line);border-radius:1rem;padding:.9rem 1rem;background:var(--surface-solid)}.study-card .feedback-banner h1,.study-card .feedback-heading{display:block;font-family:inherit;font-size:.95rem;letter-spacing:0;line-height:1.25}.feedback-banner[data-tone=good]{border-color:var(--success);@supports (color: color-mix(in lab,red,red)){border-color:color-mix(in srgb,var(--success) 42%,var(--line))}background:var(--success-soft)}.feedback-banner[data-tone=bad]{border-color:var(--danger);@supports (color: color-mix(in lab,red,red)){border-color:color-mix(in srgb,var(--danger) 42%,var(--line))}background:var(--danger-soft)}.persistence-alert{align-items:center;margin-bottom:1rem}.persistence-alert>div:first-of-type{min-width:min(100%,24rem);flex:1 1 24rem}.persistence-alert span{display:block;margin-top:.2rem;font-size:.82rem;line-height:1.45}.prose{color:var(--ink);@supports (color: color-mix(in lab,red,red)){color:color-mix(in srgb,var(--ink) 88%,var(--muted))}font-size:1rem;line-height:1.75}.prose h2{margin:2rem 0 .7rem;font-family:var(--display);font-size:1.65rem;letter-spacing:-.025em}.prose ul,.prose ol{padding-left:1.25rem}.prose li+li{margin-top:.55rem}.concept-layout{display:grid;gap:1rem}.concept-aside{align-self:start;padding:1.1rem}.objective-card,.error-card{display:grid;gap:.75rem;padding:1rem}.objective-list{display:grid;gap:.6rem;margin:0;padding:0;list-style:none}.objective-row{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:start;gap:.65rem;border-top:1px solid 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