/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */
@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-border-style:solid;--tw-ordinal:initial;--tw-slashed-zero:initial;--tw-numeric-figure:initial;--tw-numeric-spacing:initial;--tw-numeric-fraction: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-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:ui-sans-serif, system-ui, 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;--spacing:.25rem;--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,ui-sans-serif, system-ui, 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;-webkit-text-decoration:inherit;-webkit-text-decoration: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{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}.absolute{position:absolute}.fixed{position:fixed}.relative{position:relative}.static{position:static}.sticky{position:sticky}.start{inset-inline-start:var(--spacing)}.end{inset-inline-end:var(--spacing)}.isolate{isolation:isolate}.container{width:100%}@media (width>=40rem){.container{max-width:40rem}}@media (width>=48rem){.container{max-width:48rem}}@media (width>=64rem){.container{max-width:64rem}}@media (width>=80rem){.container{max-width:80rem}}@media (width>=96rem){.container{max-width:96rem}}.block{display:block}.hidden{display:none}.table{display:table}.grow{flex-grow:1}.rounded{border-radius:.25rem}.border{border-style:var(--tw-border-style);border-width:1px}.ordinal{--tw-ordinal:ordinal;font-variant-numeric:var(--tw-ordinal,) var(--tw-slashed-zero,) var(--tw-numeric-figure,) var(--tw-numeric-spacing,) var(--tw-numeric-fraction,)}.shadow{--tw-shadow:0 1px 3px 0 var(--tw-shadow-color,#0000001a), 0 1px 2px -1px var(--tw-shadow-color,#0000001a);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.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{--ink:#16221d;--ink-soft:#5e6964;--paper:#f5f2e9;--paper-deep:#e9e4d8;--white:#fffdf7;--lime:#c9f05b;--lime-deep:#9fc52f;--orange:#ff7a45;--blue:#4e72f0;--border:#16221d29;--shadow:0 24px 70px #2a2e231a}*{box-sizing:border-box}html{background:var(--paper);-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%}body{min-height:100dvh;color:var(--ink);background:radial-gradient(circle at 78% 12%, #c9f05b33, transparent 25%), var(--paper);font-family:var(--font-geist-sans), Arial, sans-serif;margin:0}button{color:inherit;font:inherit;touch-action:manipulation;-webkit-tap-highlight-color:#c9f05b4d}button:focus-visible{outline:3px solid var(--blue);outline-offset:3px}.app-shell{width:min(1420px,100%);padding:env(safe-area-inset-top) max(44px, env(safe-area-inset-right)) max(72px, env(safe-area-inset-bottom)) max(44px, env(safe-area-inset-left));margin:0 auto}.topbar,.practice-header{border-bottom:1px solid var(--border);grid-template-columns:1fr auto 1fr;align-items:center;height:92px;display:grid}.brand{font-family:var(--font-geist-mono), monospace;letter-spacing:.15em;align-items:center;gap:12px;font-size:12px;font-weight:750;display:inline-flex}.brand-mark{width:34px;height:34px;color:var(--paper);background:var(--ink);font-family:var(--font-geist-sans), sans-serif;letter-spacing:0;border-radius:50%;place-items:center;font-size:16px;display:grid}.test-switch{border:1px solid var(--border);background:#fffdf7b3;border-radius:999px;padding:4px;display:flex}.test-switch button{min-width:76px;color:var(--ink-soft);cursor:pointer;font-family:var(--font-geist-mono), monospace;background:0 0;border:0;border-radius:999px;padding:9px 18px;font-size:12px;font-weight:700}.test-switch button.active{color:var(--paper);background:var(--ink)}.profile-chip{cursor:pointer;text-align:left;background:0 0;border:0;justify-self:end;align-items:center;gap:10px;padding:4px;display:flex}.profile-chip>span{background:var(--orange);border-radius:50%;place-items:center;width:38px;height:38px;font-size:12px;font-weight:800;display:grid}.profile-chip div{flex-direction:column;gap:1px;display:flex}.profile-chip strong{font-size:13px}.profile-chip small{color:var(--ink-soft);font-size:11px}.login-shell{min-height:100dvh;padding:max(24px, env(safe-area-inset-top)) max(20px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left));place-items:center;display:grid}.login-card{border:1px solid var(--border);background:var(--white);width:min(100%,460px);box-shadow:var(--shadow);padding:clamp(28px,7vw,48px)}.login-brand{font-family:var(--font-geist-mono), monospace;letter-spacing:.15em;align-items:center;gap:12px;margin-bottom:56px;font-size:12px;font-weight:750;display:flex}.login-card h1{letter-spacing:-.05em;margin:0;font-family:Georgia,Times New Roman,serif;font-size:clamp(42px,11vw,58px);font-weight:400;line-height:.98}.login-intro{color:var(--ink-soft);margin:15px 0 34px;font-size:15px;line-height:1.5}.login-card form{gap:10px;display:grid}.login-card label{font-family:var(--font-geist-mono), monospace;letter-spacing:.1em;text-transform:uppercase;margin-top:8px;font-size:10px;font-weight:750}.login-card input{border:1px solid var(--border);background:var(--paper);width:100%;min-height:54px;color:var(--ink);font:inherit;border-radius:0;outline:none;padding:0 15px;font-size:16px}.login-card input:focus{border-color:var(--blue);box-shadow:0 0 0 2px #4e72f02e}.password-field{position:relative}.password-field input{padding-right:70px}.password-field button{min-width:58px;min-height:44px;color:var(--ink-soft);cursor:pointer;background:0 0;border:0;font-size:12px;font-weight:700;position:absolute;top:5px;right:5px}.login-error{color:#8f310d;background:#ff7a4521;margin:5px 0 0;padding:12px 14px;font-size:13px;line-height:1.4}.login-submit{background:var(--ink);min-height:62px;color:var(--paper);cursor:pointer;border:0;justify-content:space-between;align-items:center;margin-top:14px;padding:0 17px 0 20px;font-weight:680;display:flex}.login-submit b{background:var(--lime);width:36px;height:36px;color:var(--ink);border-radius:50%;place-items:center;font-size:18px;display:grid}.login-submit:disabled{cursor:wait;opacity:.68}.login-note{color:var(--ink-soft);text-align:center;margin:20px 0 0;font-size:11px}.hero-grid{grid-template-columns:1.3fr .7fr;align-items:center;gap:58px;min-height:570px;padding:74px 0 64px;display:grid}.eyebrow{color:var(--ink-soft);font-family:var(--font-geist-mono), monospace;letter-spacing:.15em;margin:0 0 18px;font-size:11px;font-weight:700}.hero-copy h1{letter-spacing:-.072em;max-width:870px;margin:0;font-size:clamp(54px,6.5vw,96px);font-weight:560;line-height:.93}.hero-copy h1 em{color:var(--orange);font-family:Georgia,Times New Roman,serif;font-weight:400}.hero-subtitle{max-width:610px;color:var(--ink-soft);margin:30px 0 34px;font-size:18px;line-height:1.55}.hero-button{border:1px solid var(--ink);background:var(--ink);min-width:360px;color:var(--paper);cursor:pointer;text-align:left;border-radius:3px;grid-template-columns:1fr auto;gap:4px 24px;padding:17px 18px 17px 24px;transition:transform .16s,box-shadow .16s;display:grid}.hero-button:hover{box-shadow:8px 8px 0 var(--lime);transform:translateY(-2px)}.hero-button>span{color:#ffffff9e;grid-column:1;font-size:11px}.hero-button b{background:var(--lime);width:42px;height:42px;color:var(--ink);border-radius:50%;grid-area:1/2/span 2;align-self:center;place-items:center;font-size:18px;display:grid}.focus-card{border:1px solid var(--border);background:var(--white);box-shadow:var(--shadow);padding:34px;position:relative;overflow:hidden}.focus-card:after{content:"";border:22px solid var(--lime);opacity:.65;border-radius:50%;width:130px;height:130px;position:absolute;top:-44px;right:-44px}.focus-top{justify-content:space-between;align-items:flex-start;display:flex}.test-pill{min-height:27px;font-family:var(--font-geist-mono), monospace;letter-spacing:.1em;border-radius:999px;align-items:center;padding:5px 10px;font-size:10px;font-weight:800;display:inline-flex}.test-pill.sat{color:#294bb9;background:#4e72f024}.test-pill.act{color:#a93609;background:#ff7a452b}.focus-card h2{letter-spacing:-.035em;max-width:360px;margin:22px 0 10px;font-family:Georgia,Times New Roman,serif;font-size:40px;font-weight:400}.focus-card>p{max-width:390px;min-height:48px;color:var(--ink-soft);margin:0 0 42px;line-height:1.5}.focus-stats{border-top:1px solid var(--border);grid-template-columns:repeat(3,1fr);padding-top:22px;display:grid}.focus-stats>div{border-right:1px solid var(--border);flex-direction:column;gap:2px;padding-right:16px;display:flex}.focus-stats>div+div{padding-left:16px}.focus-stats>div:last-child{border-right:0}.focus-stats span,.focus-stats small{color:var(--ink-soft);font-size:10px}.focus-stats strong{font-family:var(--font-geist-mono), monospace;margin:3px 0;font-size:21px}.dashboard-grid{grid-template-columns:1.1fr .9fr;gap:20px;display:grid}.panel,.skills-section,.history-section,.session-receipt{border:1px solid var(--border);background:#fffdf79e}.panel{padding:32px}.panel-heading{justify-content:space-between;align-items:flex-start;display:flex}.panel-heading h2{letter-spacing:-.035em;margin:0;font-size:26px;font-weight:560}.keyboard-hint,.sync-status{color:var(--ink-soft);font-size:11px}.sync-status{align-items:center;gap:7px;display:inline-flex}.sync-status i{background:var(--lime-deep);border-radius:50%;width:7px;height:7px}.mode-list{gap:10px;margin-top:26px;display:grid}.mode-card{border:1px solid var(--border);cursor:pointer;text-align:left;background:0 0;grid-template-columns:auto 1fr auto;align-items:center;gap:18px;padding:20px;transition:border-color .15s,transform .15s,background .15s;display:grid}.mode-card:hover{border-color:var(--ink);transform:translate(3px)}.mode-card.featured{background:var(--lime)}.mode-number{color:var(--ink-soft);font-family:var(--font-geist-mono), monospace;font-size:11px}.mode-card h3{margin:0 0 5px;font-size:17px}.mode-card p{color:var(--ink-soft);margin:0;font-size:13px;line-height:1.4}.mode-card small{color:var(--ink-soft);font-family:var(--font-geist-mono), monospace;margin-top:8px;font-size:9px;line-height:1.45;display:block}.mode-arrow{font-size:21px}.momentum-panel{color:var(--paper);background:var(--ink)}.momentum-panel .eyebrow,.momentum-panel .panel-heading,.momentum-panel .lifetime-row span,.momentum-panel .source-note p{color:#ffffff94}.big-stat{align-items:baseline;gap:12px;margin:24px 0 20px;display:flex}.big-stat strong{color:var(--lime);font-family:Georgia,Times New Roman,serif;font-size:74px;font-weight:400;line-height:1}.big-stat span{font-size:15px}.lifetime-row{border-top:1px solid #ffffff26;border-bottom:1px solid #ffffff26;grid-template-columns:repeat(3,1fr);gap:20px;padding:20px 0;display:grid}.lifetime-row div{flex-direction:column;gap:7px;display:flex}.lifetime-row span{font-size:10px}.lifetime-row strong{font-family:var(--font-geist-mono), monospace;font-size:17px}.source-note{grid-template-columns:auto 1fr;gap:14px;margin-top:22px;display:grid}.source-note span{height:max-content;color:var(--lime);font-family:var(--font-geist-mono), monospace;letter-spacing:.1em;border:1px solid #c9f05b80;padding:5px 8px;font-size:8px}.source-note p{margin:0;font-size:11px;line-height:1.45}.skills-section,.history-section{margin-top:20px;padding:32px}.skill-grid{grid-template-columns:repeat(3,1fr);gap:10px;margin-top:26px;display:grid}.skill-card{border:1px solid var(--border);background:var(--white);grid-template-columns:1fr auto;gap:20px;padding:18px;display:grid}.skill-card h3{margin:0 0 5px;font-size:14px}.skill-card span{color:var(--ink-soft);font-size:10px}.skill-card>strong{font-family:var(--font-geist-mono), monospace;align-self:center;font-size:15px}.skill-bar{background:var(--paper-deep);grid-column:1/-1;height:4px}.skill-bar>div{background:var(--orange);height:100%;transition:width .3s}.session-receipt{background:var(--white);box-shadow:var(--shadow);margin-bottom:20px;padding:32px}.receipt-heading{justify-content:space-between;align-items:flex-start;gap:24px;display:flex}.receipt-heading h2{letter-spacing:-.04em;margin:-5px 0 6px;font-family:Georgia,Times New Roman,serif;font-size:42px;font-weight:400}.receipt-heading>div>p:last-child{color:var(--ink-soft);margin:0;font-size:12px}.receipt-heading>strong{color:var(--orange);font-family:var(--font-geist-mono), monospace;font-size:40px}.receipt-stats{border-top:1px solid var(--border);border-bottom:1px solid var(--border);grid-template-columns:.65fr 1.75fr .8fr .8fr;margin-top:28px;display:grid}.receipt-stats>div{border-right:1px solid var(--border);flex-direction:column;gap:6px;min-width:0;padding:18px;display:flex}.receipt-stats>div:first-child{padding-left:0}.receipt-stats>div:last-child{border-right:0;padding-right:0}.receipt-stats span,.history-section .panel-heading>span{color:var(--ink-soft);font-family:var(--font-geist-mono), monospace;letter-spacing:.05em;text-transform:uppercase;font-size:9px}.receipt-stats strong{font-size:13px;line-height:1.4}.review-misses-button{border:1px solid var(--ink);cursor:pointer;background:0 0;justify-content:space-between;align-items:center;width:100%;min-height:56px;margin-top:18px;padding:0 18px;font-size:13px;font-weight:750;display:flex}.receipt-skills{grid-template-columns:auto 1fr;align-items:start;gap:14px;margin-top:18px;display:grid}.receipt-skills>span{color:var(--ink-soft);font-family:var(--font-geist-mono), monospace;letter-spacing:.05em;text-transform:uppercase;padding-top:6px;font-size:9px}.receipt-skills>div{flex-wrap:wrap;gap:6px;display:flex}.receipt-skills small{background:var(--paper);color:var(--ink-soft);padding:5px 8px;font-size:10px}.adaptive-note{color:var(--ink-soft);margin:14px 0 0;font-size:11px;line-height:1.5}.review-misses-button span{color:var(--ink-soft);font-size:11px;font-weight:500}.miss-list{gap:10px;margin-top:10px;display:grid}.miss-list article{border:1px solid var(--border);background:var(--paper);padding:18px}.miss-card-heading{color:var(--ink-soft);font-family:var(--font-geist-mono), monospace;letter-spacing:.04em;text-transform:uppercase;justify-content:space-between;gap:12px;font-size:9px;display:flex}.miss-list article p{margin:14px 0 8px;font-family:Georgia,Times New Roman,serif;font-size:18px;line-height:1.35}.miss-list article small,.miss-list article em{color:var(--ink-soft);font-size:12px;font-style:normal;line-height:1.5;display:block}.miss-answers{grid-template-columns:1fr 1fr;gap:8px;margin:14px 0 10px;display:grid}.miss-answers>div{background:var(--white);flex-direction:column;gap:4px;padding:10px;display:flex}.miss-answers span{color:var(--ink-soft);font-family:var(--font-geist-mono), monospace;letter-spacing:.08em;text-transform:uppercase;font-size:8px;font-weight:800}.miss-answers strong{font-size:12px;line-height:1.4}.miss-explanation{margin-bottom:6px;font-weight:650;color:var(--ink)!important}.saved-math-lesson{background:var(--white);border:1px solid #4e72f059;margin-top:12px;padding:0 12px 12px}.saved-math-lesson summary{cursor:pointer;color:#294ab8;align-items:center;min-height:44px;font-size:11px;font-weight:750;display:flex}.miss-list article .saved-math-lesson p{margin:0 0 10px;font-family:inherit;font-size:12px;line-height:1.5}.saved-math-lesson ol{gap:8px;margin:0;padding-left:22px;display:grid}.saved-math-lesson li{color:var(--ink-soft);padding-left:2px;font-size:12px;line-height:1.5}.saved-math-lesson li::marker{color:var(--blue);font-weight:800}.saved-tutor{background:var(--white);border:1px solid #4e72f04d;margin-top:12px}.saved-tutor>summary{cursor:pointer;color:#294ab8;align-items:center;min-height:48px;padding:0 12px;font-size:11px;font-weight:750;display:flex}.saved-tutor .tutor-chat{box-shadow:none;border:0;border-top:1px solid #4e72f033;border-radius:0;margin:0}.miss-list article em{color:#7d2b0c;background:#ff7a451f;align-items:center;gap:8px;width:max-content;max-width:100%;margin-top:12px;padding:6px 9px;font-weight:650;display:flex}.miss-list article em span{color:#8f310d;font-family:var(--font-geist-mono), monospace;letter-spacing:.08em;text-transform:uppercase;font-size:8px;font-weight:800}.practice-skill-button{background:var(--ink);width:100%;min-height:48px;color:var(--paper);cursor:pointer;border:0;justify-content:space-between;align-items:center;margin-top:12px;padding:0 13px;font-size:12px;font-weight:700;display:flex}.perfect-session{background:#c9f05b38;margin:18px 0 0;padding:16px;font-size:13px}.history-list{gap:10px;margin-top:26px;display:grid}.history-list article{border:1px solid var(--border);background:var(--white);grid-template-columns:1fr .65fr 2fr 1fr;align-items:center;gap:20px;padding:18px;display:grid}.history-list article>div{min-width:0}.history-date,.history-score,.history-meta{flex-direction:column;gap:4px;display:flex}.history-date span,.history-score span,.history-meta span{color:var(--ink-soft);font-size:10px}.history-date strong,.history-score strong{font-size:14px}.history-sections{flex-wrap:wrap;gap:6px;display:flex}.history-sections span{background:var(--paper);font-family:var(--font-geist-mono), monospace;padding:5px 8px;font-size:9px}.empty-history{border:1px dashed var(--border);color:var(--ink-soft);margin:0;padding:24px;font-size:13px;line-height:1.5}.practice-shell{min-height:100dvh}.practice-header{z-index:10;top:env(safe-area-inset-top);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#f5f2e9f5;position:sticky}.compact-brand{cursor:pointer;background:0 0;border:0;width:max-content;padding:0}.session-progress{grid-template-columns:1fr auto;align-items:center;gap:8px 14px;min-width:380px;display:grid}.session-progress>span,.session-score span{color:var(--ink-soft);font-family:var(--font-geist-mono), monospace;text-transform:uppercase;letter-spacing:.08em;font-size:10px}.session-progress strong,.session-score strong{font-family:var(--font-geist-mono), monospace;font-size:12px}.progress-track{background:var(--paper-deep);grid-column:1;height:5px;overflow:hidden}.progress-track div{background:var(--orange);height:100%;transition:width .2s}.session-score{flex-direction:column;justify-self:end;align-items:flex-end;gap:4px;display:flex}.question-layout{grid-template-columns:minmax(0,860px) 260px;justify-content:center;gap:70px;padding:64px 0 90px;display:grid}.question-meta{color:var(--ink-soft);font-family:var(--font-geist-mono), monospace;flex-wrap:wrap;align-items:center;gap:9px;margin-bottom:16px;font-size:10px;display:flex}.difficulty{border:1px solid var(--border);text-transform:capitalize;margin-left:auto;padding:4px 7px}.response-type{color:#294bb9;background:#4e72f01f;padding:4px 7px}.remediation-badge{color:#a93609;text-transform:uppercase;background:#ff7a4529;padding:4px 7px;font-weight:800}.timer{background:var(--lime);color:var(--ink);padding:4px 7px}.timer.over{color:#a93609;background:#ff7a4533}.question-card{border:1px solid var(--border);background:var(--white);box-shadow:var(--shadow);padding:clamp(26px,5vw,54px)}.question-context{border-left:4px solid var(--lime-deep);background:var(--paper);white-space:pre-line;margin-bottom:30px;padding:22px 24px;font-family:Georgia,Times New Roman,serif;font-size:17px;line-height:1.6}.question-card>h1{letter-spacing:-.025em;margin:0 0 34px;font-family:Georgia,Times New Roman,serif;font-size:clamp(24px,3vw,35px);font-weight:400;line-height:1.25}.options{gap:10px;display:grid}.student-response{border:1px solid var(--border);background:var(--paper);padding:22px}.student-response label{font-family:var(--font-geist-mono), monospace;letter-spacing:.1em;text-transform:uppercase;margin-bottom:9px;font-size:10px;font-weight:800;display:block}.student-response input{border:1px solid var(--border);background:var(--white);width:100%;min-height:58px;color:var(--ink);font:inherit;border-radius:0;outline:none;padding:0 16px;font-size:20px}.student-response input:focus{border-color:var(--blue);box-shadow:0 0 0 2px #4e72f02e}.student-response input:disabled{opacity:1}.student-response p{color:var(--ink-soft);margin:10px 0 0;font-size:11px;line-height:1.45}.option{border:1px solid var(--border);cursor:pointer;text-align:left;background:0 0;grid-template-columns:auto 1fr auto;align-items:center;gap:15px;min-height:64px;padding:12px 16px;display:grid}.option:hover:not(:disabled),.option.selected{border-width:2px;border-color:var(--ink);background:#c9f05b2e}.option.selected .option-key{background:var(--ink);color:var(--paper)}.option:disabled{color:var(--ink);cursor:default}.option.option-correct{background:#c9f05b40;border-color:#79a317}.option.option-wrong{border-color:var(--orange);background:#ff7a451a}.option-key{border:1px solid var(--border);width:32px;height:32px;font-family:var(--font-geist-mono), monospace;border-radius:50%;place-items:center;font-size:11px;font-weight:700;display:grid}.option-result{font-size:19px}.answer-actions{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;margin-top:24px;display:flex}.answer-actions>span{color:var(--ink-soft);font-size:10px}.primary-button{background:var(--ink);min-height:47px;color:var(--paper);cursor:pointer;border:0;padding:0 22px;font-size:13px;font-weight:650}.primary-button:disabled{cursor:not-allowed;opacity:.35}.save-error{color:#8f310d;background:#ff7a4521;flex:1 0 100%;margin:0;padding:11px 13px;font-size:12px;line-height:1.45}.feedback{border-top:1px solid var(--border);margin-top:28px;padding-top:28px;scroll-margin-top:112px}.feedback-heading{align-items:flex-start;gap:15px;display:flex}.feedback-icon{background:var(--lime);border-radius:50%;flex:none;place-items:center;width:36px;height:36px;font-weight:900;display:grid}.feedback.incorrect .feedback-icon{background:var(--orange)}.feedback-heading p{color:var(--ink-soft);font-family:var(--font-geist-mono), monospace;letter-spacing:.1em;text-transform:uppercase;margin:0 0 5px;font-size:10px;font-weight:700}.feedback-heading h2{margin:0;font-size:17px;font-weight:540;line-height:1.5}.tutor-chat{background:#f7f8ff;border:1px solid #4e72f052;border-radius:18px;margin:24px 0 18px;overflow:hidden;box-shadow:0 16px 38px #27429b1a}.tutor-header{background:#4e72f012;border-bottom:1px solid #4e72f02b;align-items:center;gap:11px;padding:15px 16px;display:flex}.tutor-avatar{background:var(--blue);color:#fff;border-radius:50%;flex:0 0 38px;place-items:center;width:38px;height:38px;font-family:Georgia,Times New Roman,serif;font-size:20px;display:grid}.tutor-header>div{flex-direction:column;gap:3px;min-width:0;display:flex}.tutor-header strong{font-size:13px}.tutor-header span:not(.tutor-avatar){color:#56617c;align-items:center;gap:6px;font-size:10px;display:flex}.tutor-header i{background:#5caf55;border-radius:50%;width:7px;height:7px;display:inline-block}.tutor-status{color:#56617c;margin:0;padding:22px 18px;font-size:13px}.tutor-messages{overscroll-behavior:contain;scroll-behavior:smooth;flex-direction:column;gap:14px;max-height:430px;padding:18px 16px 10px;display:flex;overflow-y:auto}.tutor-message{align-self:flex-start;max-width:88%}.tutor-message-user{align-self:flex-end}.tutor-message>span{color:#66708a;font-family:var(--font-geist-mono), monospace;letter-spacing:.08em;text-transform:uppercase;margin:0 8px 4px;font-size:8px;font-weight:800;display:block}.tutor-message-user>span{text-align:right}.tutor-message p,.miss-list article .tutor-message p{color:var(--ink);font-family:var(--font-geist-sans), Arial, sans-serif;white-space:pre-wrap;background:#fff;border-radius:4px 16px 16px;margin:0;padding:12px 14px;font-size:14px;line-height:1.55}.tutor-message-user p,.miss-list article .tutor-message-user p{background:var(--blue);color:#fff;border-radius:16px 4px 16px 16px}.tutor-thinking{align-items:center;gap:5px;display:flex;color:#66708a!important;font-size:11px!important}.tutor-thinking i{background:var(--blue);border-radius:50%;width:5px;height:5px;animation:1s ease-in-out infinite tutor-pulse}.tutor-thinking i:nth-child(2){animation-delay:.12s}.tutor-thinking i:nth-child(3){margin-right:3px;animation-delay:.24s}@keyframes tutor-pulse{0%,to{opacity:.3;transform:translateY(0)}50%{opacity:1;transform:translateY(-2px)}}.tutor-quick-prompts{scrollbar-width:none;gap:7px;padding:8px 16px 12px;display:flex;overflow-x:auto}.tutor-quick-prompts::-webkit-scrollbar{display:none}.tutor-quick-prompts button{color:#294ab8;cursor:pointer;background:#fff;border:1px solid #4e72f047;border-radius:999px;flex:none;min-height:38px;padding:0 12px;font-size:11px;font-weight:650}.tutor-composer{background:#fff;border-top:1px solid #4e72f029;padding:13px 16px 16px}.tutor-composer label{color:#66708a;margin-bottom:7px;font-size:10px;font-weight:650;display:block}.tutor-composer>div{grid-template-columns:1fr auto;align-items:end;gap:9px;display:grid}.tutor-composer textarea{resize:vertical;width:100%;min-height:52px;max-height:140px;color:var(--ink);font:16px/1.4 var(--font-geist-sans), Arial, sans-serif;background:#fffefa;border:1px solid #16221d38;border-radius:11px;padding:11px 12px}.tutor-composer textarea:focus{border-color:var(--blue);outline:2px solid #4e72f02b}.tutor-composer button{background:var(--blue);color:#fff;cursor:pointer;border:0;border-radius:50%;width:48px;height:48px;font-size:22px;font-weight:700}.tutor-composer button:disabled{cursor:not-allowed;opacity:.35}.tutor-empty{justify-content:space-between;align-items:center;gap:14px;padding:18px;display:flex}.tutor-empty p,.miss-list article .tutor-empty p{color:#56617c;font-family:var(--font-geist-sans), Arial, sans-serif;margin:0;font-size:12px;line-height:1.45}.tutor-empty button,.tutor-error button{background:var(--blue);color:#fff;cursor:pointer;border:0;border-radius:999px;flex:none;min-height:42px;padding:0 14px;font-size:11px;font-weight:750}.tutor-error{color:#8f310d;background:#fff0ed;border-top:1px solid #b0392833;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;font-size:11px;display:flex}.reference-solution{border:1px solid var(--border);background:var(--white);margin:16px 0;padding:0 16px 16px}.reference-solution>summary{cursor:pointer;align-items:center;min-height:48px;font-size:12px;font-weight:750;display:flex}.reference-explanation{color:var(--ink-soft);margin:2px 0 14px;font-size:13px;line-height:1.55}.reference-solution .choice-reasons{margin-top:12px}.reference-solution .math-coach{margin-bottom:14px}.choice-reasons{grid-template-columns:1fr 1fr;gap:10px 20px;margin:24px 0;display:grid}.choice-reasons>div{border-top:1px solid var(--border);grid-template-columns:auto 1fr;gap:10px;padding-top:10px;display:grid}.choice-reasons span{font-family:var(--font-geist-mono), monospace;font-size:10px;font-weight:800}.choice-reasons p{color:var(--ink-soft);margin:0;font-size:13px;line-height:1.5}.produced-answer{background:#c9f05b33;border:1px solid #79a31773;justify-content:space-between;align-items:center;gap:20px;margin:24px 0;padding:16px;display:flex}.produced-answer span{color:var(--ink-soft);font-family:var(--font-geist-mono), monospace;letter-spacing:.1em;text-transform:uppercase;font-size:9px;font-weight:800}.produced-answer strong{font-family:var(--font-geist-mono), monospace;font-size:18px}.math-coach{background:#4e72f012;border:1px solid #4e72f061;margin:24px 0;padding:20px}.math-coach>.eyebrow{color:var(--blue);margin:0 0 7px;font-size:9px}.math-coach h3{letter-spacing:-.02em;margin:0;font-family:Georgia,Times New Roman,serif;font-size:24px;font-weight:400}.math-concept{color:var(--ink-soft);margin:9px 0 18px;font-size:14px;line-height:1.55}.worked-solution{background:var(--white);padding:16px}.worked-solution h4{margin:0 0 13px;font-size:13px}.worked-solution ol{gap:12px;margin:0;padding-left:29px;display:grid}.worked-solution li{padding-left:4px;font-size:14px;line-height:1.55}.worked-solution li::marker{color:var(--blue);font-family:var(--font-geist-mono), monospace;font-weight:800}.math-coach details{border-top:1px solid #4e72f040;margin-top:12px}.math-coach summary{cursor:pointer;color:#294ab8;align-items:center;min-height:46px;font-size:12px;font-weight:750;display:flex}.math-coach details p{color:var(--ink-soft);margin:0 0 4px;font-size:13px;line-height:1.55}.takeaway{background:var(--paper);grid-template-columns:auto 1fr;gap:13px;padding:16px;display:grid}.takeaway span{color:var(--orange);font-family:var(--font-geist-mono), monospace;letter-spacing:.1em;text-transform:uppercase;font-size:9px;font-weight:800}.takeaway p{margin:0;font-size:13px;line-height:1.5}.review-check{background:#ff7a4514;border:1px solid #ff7a4573;margin-top:16px;padding:18px}.review-check .eyebrow{color:#8f310d;margin-bottom:7px;font-size:9px}.review-check h3{margin:0 0 14px;font-size:17px}.review-reasons{grid-template-columns:1fr 1fr;gap:8px;display:grid}.review-reasons button{border:1px solid var(--border);background:var(--white);cursor:pointer;text-align:left;min-height:46px;padding:9px 11px;font-size:12px}.review-reasons button.active{border-color:var(--ink);background:var(--lime);font-weight:700}.review-check small{color:var(--ink-soft);margin-top:10px;font-size:10px;display:block}.next-button{justify-content:space-between;align-items:center;width:100%;margin-top:18px;display:flex}.question-aside{border-top:2px solid var(--ink);border-bottom:1px solid var(--border);align-self:start;margin-top:43px;padding:24px 0}.question-aside h3{margin:-8px 0 10px;font-family:Georgia,Times New Roman,serif;font-size:27px;font-weight:400}.question-aside p:not(.eyebrow){color:var(--ink-soft);margin:0;font-size:12px;line-height:1.5}.question-aside strong{font-family:var(--font-geist-mono), monospace;margin:-8px 0 8px;font-size:17px;display:block}.mini-rule{background:var(--border);height:1px;margin:24px 0}@media (width<=980px){.app-shell{padding-right:max(24px, env(safe-area-inset-right));padding-left:max(24px, env(safe-area-inset-left))}.hero-grid,.dashboard-grid{grid-template-columns:1fr}.hero-grid{gap:36px}.question-layout{grid-template-columns:minmax(0,760px)}.question-aside{display:none}.skill-grid{grid-template-columns:repeat(2,1fr)}}@media (width<=680px){.app-shell{padding-right:max(16px, env(safe-area-inset-right));padding-bottom:max(48px, env(safe-area-inset-bottom));padding-left:max(16px, env(safe-area-inset-left))}.topbar,.practice-header{grid-template-columns:1fr auto;gap:14px;height:auto;min-height:78px;padding:14px 0}.topbar .test-switch{grid-area:2/1/auto/-1;justify-self:stretch}.test-switch button{flex:1;min-height:44px}.profile-chip div{display:none}.profile-chip{justify-content:center;min-width:46px;min-height:46px}.login-card{padding:30px 24px}.login-brand{margin-bottom:48px}.hero-grid{min-height:auto;padding:42px 0 36px}.hero-copy h1{font-size:clamp(46px,13.5vw,54px)}.hero-subtitle{font-size:16px}.hero-button{width:100%;min-width:0}.focus-stats{grid-template-columns:repeat(3,1fr);gap:0}.focus-stats>div,.focus-stats>div+div{border-right:1px solid var(--border);border-bottom:0;padding:0 12px}.focus-stats>div:first-child{padding-left:0}.focus-stats>div:last-child{border-right:0;padding-right:0}.panel,.skills-section,.history-section,.session-receipt{padding:22px}.panel-heading{gap:18px}.keyboard-hint{display:none}.mode-card{grid-template-columns:auto 1fr}.mode-arrow{display:none}.lifetime-row,.skill-grid,.receipt-stats{grid-template-columns:1fr}.receipt-heading h2{font-size:34px}.receipt-heading>strong{font-size:28px}.receipt-stats>div,.receipt-stats>div:first-child,.receipt-stats>div:last-child{border-right:0;border-bottom:1px solid var(--border);padding:13px 0}.receipt-stats>div:last-child{border-bottom:0}.history-list article{grid-template-columns:1fr auto;gap:14px}.history-sections,.history-meta{grid-column:1/-1}.history-meta{flex-direction:row;gap:14px}.practice-header{grid-template-columns:auto 1fr auto}.compact-brand>span:last-child{display:none}.compact-brand{min-width:44px;min-height:44px}.session-progress{min-width:0}.session-progress>span{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.question-layout{padding-top:22px}.question-meta{font-size:11px;line-height:1.4}.question-card{padding:20px 18px 96px}.question-context{margin-bottom:22px;padding:14px;font-size:16px}.question-card>h1{margin-bottom:24px}.choice-reasons,.review-reasons,.miss-answers{grid-template-columns:1fr}.choice-reasons p,.takeaway p,.math-concept,.worked-solution li{font-size:14px}.math-coach{padding:16px}.math-coach h3{font-size:22px}.tutor-chat{border-radius:15px;margin-left:-4px;margin-right:-4px}.tutor-messages{max-height:360px;padding-left:12px;padding-right:12px}.tutor-message{max-width:95%}.tutor-message p,.miss-list article .tutor-message p{font-size:14px}.tutor-quick-prompts{grid-template-columns:1fr 1fr;padding-left:12px;padding-right:12px;display:grid;overflow:visible}.tutor-quick-prompts button{white-space:normal;min-height:42px;padding:7px 10px}.tutor-quick-prompts button:nth-child(3){grid-column:1/-1}.tutor-composer{padding-right:12px;padding-bottom:max(14px, env(safe-area-inset-bottom));padding-left:12px}.tutor-empty{flex-direction:column;align-items:stretch}.tutor-empty button{width:100%}.answer-actions{flex-direction:column-reverse;align-items:stretch}.answer-actions>span{color:#4c5752;text-align:center;font-size:11px}.review-check small,.student-response p{color:#4c5752;font-size:11px}.desktop-answer-hint{display:none}.primary-button{min-height:52px}.practice-shell .answer-actions .primary-button{z-index:20;right:max(16px, env(safe-area-inset-right));bottom:max(12px, env(safe-area-inset-bottom));left:max(16px, env(safe-area-inset-left));width:auto;min-height:58px;margin:0;position:fixed;box-shadow:0 8px 30px #16221d47}.practice-shell .next-button{min-height:58px}.feedback{padding-bottom:0}}.mobile-answer-hint{display:none}@media (width<=680px){.mobile-answer-hint{display:inline}}@media (height<=500px) and (orientation:landscape){.topbar,.practice-header{height:58px;min-height:58px;padding-block:7px}.hero-grid{gap:24px;padding:20px 0 28px}.hero-copy h1{font-size:42px;line-height:.95}.hero-copy .eyebrow{margin-bottom:10px}.hero-subtitle{margin:14px 0 16px;font-size:14px}.hero-button{min-height:66px;padding-block:10px}.question-layout{padding-top:14px}.feedback{scroll-margin-top:74px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important}}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{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-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}
