@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-cyrillic-ext-wght-normal-BOeWTOD4.woff2)format("woff2-variations");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-cyrillic-wght-normal-DqGufNeO.woff2)format("woff2-variations");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-greek-ext-wght-normal-DlzME5K_.woff2)format("woff2-variations");unicode-range:U+1F??}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-greek-wght-normal-CkhJZR-_.woff2)format("woff2-variations");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-vietnamese-wght-normal-CBcvBZtf.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-latin-ext-wght-normal-DO1Apj_S.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-latin-wght-normal-Dx4kXJAl.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@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-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;-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: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{.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}.static{position:static}.isolate{isolation:isolate}.block{display:block}.flex{display:flex}.hidden{display:none}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.resize{resize:both}.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{--background:#f6f6f6;--surface:#fff;--secondary:#efefef;--foreground:#111;--muted-foreground:#6b6b6b;--faint:#929292;--border:#11111114;--primary:#425bff;--primary-foreground:#fff;--accent-surface:#edf0ff;--success:#23805a;--success-surface:#edf7f1;--error:#a74b42;--error-surface:#fff2ee;--shadow:0 1px 1px #00000008, 0 2px 4px #00000008, 0 8px 16px #00000005;--ease:cubic-bezier(.22, 1, .36, 1);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-synthesis:none;font-optical-sizing:auto;font-feature-settings:"cv11", "ss01", "ss03";-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%;color:var(--foreground);background:var(--background);font-family:Inter Variable,-apple-system,BlinkMacSystemFont,sans-serif}*{box-sizing:border-box}html{-webkit-tap-highlight-color:transparent;overflow-x:clip}body{overscroll-behavior-y:none;min-width:320px;margin:0}button,select,input{font:inherit}button,a,select,summary{touch-action:manipulation}button,summary{-webkit-user-select:none;user-select:none}button{cursor:pointer}button,a,select,summary{transition:opacity .18s var(--ease), background-color .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease)}button:not(:disabled):active,a:active,summary:active{opacity:.6;transition-duration:0s}button:disabled{cursor:default}a{color:inherit;text-decoration:none}svg{stroke-width:1.75px;flex-shrink:0;width:20px;height:20px}h1,h2,p{margin:0}h1,h2{text-wrap:balance}:focus-visible{outline:3px solid var(--primary);outline-offset:4px}h1:focus{outline:none}::selection{background:var(--primary);color:var(--primary-foreground)}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.app{max-width:1024px;min-height:100svh;padding:env(safe-area-inset-top,0px) 48px max(24px, env(safe-area-inset-bottom,0px));margin-inline:auto}.site-header{justify-content:space-between;align-items:center;height:100px;display:flex}.brand{letter-spacing:-1.2px;align-items:center;gap:10px;font-size:25px;font-weight:700;display:flex}.brand-mark{background:var(--foreground);color:var(--surface);border-radius:11px;place-items:center;width:34px;height:34px;display:grid}.brand-mark svg{stroke-width:2px;width:21px;height:21px}.brand-dot{color:var(--primary)}.header-right{align-items:center;gap:18px;display:flex}.header-caption{color:var(--muted-foreground);font-size:12px}.button{white-space:nowrap;border:1px solid #0000;border-radius:16px;justify-content:center;align-items:center;gap:10px;min-height:52px;padding:12px 20px;font-size:15px;font-weight:560;line-height:1.35;display:inline-flex}.button svg{width:18px;height:18px}.button-primary{background:var(--primary);color:var(--primary-foreground);box-shadow:0 1px 2px #2336b21f}.button-secondary{background:var(--secondary);color:var(--foreground)}.button-outline{background:var(--surface);border-color:var(--border);color:var(--foreground)}.button-ghost{color:var(--muted-foreground);background:0 0}.button-icon{border-radius:50%;width:44px;min-height:44px;padding:0}.button-small{border-radius:12px;min-height:40px;padding:8px 12px;font-size:12px}.button:disabled{opacity:.35;box-shadow:none}.home{max-width:600px;margin-inline:auto;padding-top:33px}.resume-round{background:var(--accent-surface);width:100%;color:var(--primary);text-align:left;border:1px solid #d9dffe;border-radius:15px;align-items:center;gap:12px;margin-bottom:20px;padding:14px 17px;font-size:12px;font-weight:550;display:flex}.resume-round small{color:var(--muted-foreground);margin-top:3px;font-size:10px;font-weight:400;display:block}.resume-round>svg{width:16px;height:16px}.resume-round>svg:last-child{margin-left:auto}.intro{text-align:center;margin-bottom:34px}.eyebrow{color:var(--muted-foreground);justify-content:center;align-items:center;gap:7px;font-size:12px;line-height:1.4;display:flex}.live-dot{background:var(--primary);width:6px;height:6px;box-shadow:0 0 0 3px var(--accent-surface);border-radius:50%}.intro h1{letter-spacing:-.045em;margin:15px 0;font-size:clamp(38px,5vw,52px);font-weight:640;line-height:1.08}.title-dot{color:var(--primary)}.intro p{letter-spacing:-.015em;color:var(--muted-foreground);font-size:16px;line-height:1.6}.mobile-break{display:none}.mode-grid{grid-template-columns:1fr 1fr;gap:16px;margin-bottom:30px;display:grid}.mode-card{background:var(--surface);border:1.5px solid var(--border);text-align:left;min-width:0;box-shadow:var(--shadow);border-radius:24px;flex-direction:column;align-items:flex-start;padding:22px 24px 23px;display:flex;position:relative}.mode-selected{border-color:var(--primary);background:var(--surface);box-shadow:0 0 0 1px #425bff0d, var(--shadow)}.mode-radio{border:1.5px solid var(--border);border-radius:50%;place-items:center;width:19px;height:19px;display:grid;position:absolute;top:17px;right:17px}.mode-selected .mode-radio{border-color:var(--primary);background:var(--primary);color:var(--surface)}.mode-radio svg{stroke-width:3px;width:12px;height:12px}.mode-name{letter-spacing:-.025em;margin-top:8px;font-size:18px;font-weight:620}.mode-description{max-width:100%;color:var(--muted-foreground);letter-spacing:-.01em;margin-top:5px;font-size:12px;display:block}.deck-art{width:110px;height:111px;margin-top:1px;margin-left:4px;position:relative}.deck-face,.deck-back{border-radius:13px;width:67px;height:81px;position:absolute}.deck-back{background:#dbe1ff;border:1px solid #425bff24;top:13px;left:21px}.deck-back-two{opacity:.65;top:13px;left:31px;transform:rotate(16deg)}.deck-back-one{background:#c4cfff;top:14px;left:23px;transform:rotate(7deg)}.deck-face{box-shadow:0 4px 6px #27399514, inset 0 1px 0 var(--surface);background:linear-gradient(145deg,#f9faff,#e8edff);border:1px solid #c7d1fb;flex-direction:column;gap:5px;padding:10px 11px;display:flex;top:17px;left:11px;transform:rotate(-9deg)}.deck-question{color:var(--primary);font-size:29px;font-weight:550;line-height:1}.mini-answers{flex-direction:column;gap:4px;display:flex}.mini-answers i{background:#c7d1fb;border-radius:2px;width:38px;height:4px}.mini-answers i:nth-child(2){background:#98a8ff;width:28px}.mini-answers i:nth-child(3){width:32px}.deck-star{color:var(--primary);position:absolute;top:17px;left:90px;transform:rotate(12deg)}.deck-star svg{stroke-width:1.5px;width:16px;height:16px}.deck-art-flash .deck-back{background:#eae5d8;border-color:#d8d5c8}.deck-art-flash .deck-back-one{background:#e2dccb}.deck-art-flash .deck-face{background:linear-gradient(145deg,#fffefb,#f2eee3);border-color:#ded8c7}.deck-art-flash .deck-face>svg{color:#8e856e;width:28px;height:28px;margin:3px 0 6px}.deck-art-flash .deck-star{display:none}.mini-lines{flex-direction:column;gap:5px;display:flex}.mini-lines i{background:#d8d0bc;border-radius:2px;width:38px;height:4px}.mini-lines i:last-child{width:25px}.section-label{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.section-label h2{letter-spacing:-.01em;font-size:13px;font-weight:580}.section-label>span{color:var(--faint);font-size:11px}.segment-group{background:#e9e9eb;border-radius:13px;gap:3px;width:100%;padding:4px;display:flex}.segment-item{min-width:0;min-height:38px;color:var(--muted-foreground);background:0 0;border:0;border-radius:9px;flex:1;font-size:13px;font-weight:500}.segment-item[data-state=on]{background:var(--surface);color:var(--foreground);box-shadow:0 1px 3px #00000012,0 0 0 .5px #00000008}.level-description{color:var(--muted-foreground);margin-top:10px;font-size:12px;line-height:1.5}.topic-row{border-top:1px solid var(--border);justify-content:space-between;align-items:center;min-height:64px;margin-top:10px;display:flex}.topic-row>span{font-size:13px;font-weight:500}.topic-select{position:relative}.topic-select select{appearance:none;cursor:pointer;color:var(--muted-foreground);text-align:right;background:0 0;border:none;min-height:44px;padding:12px 24px 12px 8px;font-size:13px}.topic-select svg{pointer-events:none;width:16px;height:16px;color:var(--muted-foreground);margin-top:-8px;position:absolute;top:50%;right:0}.start-button{border-radius:16px;width:100%;min-height:56px;font-size:15px}.start-button>svg{margin-left:4px}.round-hint{color:var(--faint);justify-content:center;gap:9px;margin-top:13px;font-size:11px;display:flex}.round-hint span{color:#b1b1b1}.progress-card{background:var(--surface);border:1px solid var(--border);border-radius:20px;align-items:center;gap:15px;margin-top:29px;padding:18px 20px;display:flex}.progress-ring{flex-shrink:0}.progress-ring circle{fill:none;stroke-width:3px}.ring-track{stroke:var(--secondary)}.ring-value{stroke:var(--primary);stroke-linecap:round;transform-origin:50%;transition:stroke-dashoffset .3s var(--ease);transform:rotate(-90deg)}.ring-check{fill:none;stroke:var(--primary);stroke-width:2px;stroke-linecap:round;stroke-linejoin:round}.progress-card h2{letter-spacing:-.015em;font-size:13px;font-weight:580}.progress-card p{color:var(--muted-foreground);margin-top:4px;font-size:11px}.progress-end{color:#c8c8c8;margin-left:auto}.progress-end svg{width:17px;height:17px}.mistakes-button{color:var(--primary);margin-left:auto}.mistakes-button svg{width:14px;height:14px}.mobile-mistakes{display:none}.home-footer{color:var(--faint);justify-content:space-between;align-items:center;gap:12px;padding:27px 0 12px;font-size:10px;display:flex}.home-footer a{white-space:nowrap;align-items:center;gap:5px;display:flex}.home-footer svg{width:11px;height:11px}.app-in-round .site-header{display:none}.play-screen{max-width:600px;margin-inline:auto;padding-top:24px}.round-nav{justify-content:space-between;align-items:center;gap:12px;display:flex}.back-button{gap:7px;min-height:40px;padding:8px 0;font-size:12px}.back-button svg{width:15px;height:15px}.round-nav>span{color:var(--muted-foreground);font-variant-numeric:tabular-nums;font-size:12px}.nav-dot{color:var(--faint);margin-inline:8px}.round-progress{gap:6px;margin:12px 0 28px;display:flex}.round-progress>span{background:#e5e5e7;border-radius:4px;flex:1;height:4px}.round-progress .progress-done{background:var(--primary)}.round-progress .progress-current{background:#b1bcff}.question-heading{animation:enter .23s var(--ease) both}.situation{color:#535353;letter-spacing:-.018em;max-width:550px;font-size:17px;line-height:1.6}.question-heading h1{letter-spacing:-.035em;text-wrap:pretty;margin-top:16px;margin-bottom:24px;font-size:23px;font-weight:620;line-height:1.24}.answers{flex-direction:column;gap:10px;display:flex}.answer{text-align:left;border:1px solid var(--border);background:var(--surface);border-radius:17px;align-items:center;gap:14px;min-height:64px;padding:14px 16px;font-size:14px;font-weight:470;line-height:1.5;display:flex;box-shadow:0 1px 2px #00000005}.answer-letter{background:var(--background);width:28px;height:28px;color:var(--muted-foreground);border-radius:9px;flex-shrink:0;place-items:center;font-size:12px;display:grid}.answer-letter svg{width:17px;height:17px}.answer-locked{box-shadow:none}.answer-correct{background:var(--success-surface);color:#195539;border-color:#a7d5bc}.answer-correct .answer-letter{color:var(--success);background:#d7eddf}.answer-incorrect{background:var(--error-surface);border-color:#edc8c1}.answer-incorrect .answer-letter{color:var(--error);background:#f6ddd6}.answer-locked:not(.answer-correct):not(.answer-incorrect){color:var(--faint)}.answer-result{color:var(--success);margin-left:auto;font-size:10px}.choice-hint{text-align:center;color:var(--faint);margin-top:20px;font-size:12px}.feedback{animation:enter .22s var(--ease) both;align-items:flex-start;gap:12px;margin:0;padding:0;display:flex}.feedback-icon{color:var(--primary);margin-top:1px}.feedback-correct .feedback-icon{color:var(--success)}.feedback h2{margin-bottom:6px;font-size:13px;font-weight:620}.feedback p{color:var(--muted-foreground);font-size:13px;line-height:1.65}.source-link{color:var(--muted-foreground);align-items:center;gap:6px;min-height:32px;font-size:11px;display:inline-flex}.source-link svg{width:12px;height:12px}.keyboard-hint{color:var(--faint);font-size:10px}.play-footer{color:var(--faint);justify-content:center;align-items:center;gap:7px;margin:40px auto 4px;font-size:10px;display:flex}.play-footer svg{width:13px;height:13px}.flash-heading{letter-spacing:-.035em;margin:21px 0 29px;font-size:27px;font-weight:610}.flash-stack{isolation:isolate;margin:0 7px 28px;position:relative}.flash-stack-back{border:1px solid var(--border);z-index:-1;background:#ebebed;border-radius:25px;position:absolute;inset:12px 8px -7px;transform:rotate(2deg)}.flash-card{touch-action:pan-y;text-align:left;background:var(--surface);border:1px solid var(--border);width:100%;min-height:330px;box-shadow:var(--shadow);transition:transform .3s var(--ease), opacity .18s var(--ease);border-radius:24px;flex-direction:column;padding:27px;display:flex;position:relative}.flash-dragging{transition:none}.flash-card:active{opacity:1}.flash-card-top{color:var(--faint);justify-content:space-between;align-items:center;font-size:11px;display:flex}.flash-card-top svg{color:var(--primary);width:21px;height:21px}.flash-body{animation:enter .2s var(--ease);flex-direction:column;gap:17px;margin-block:auto;padding-block:31px;display:flex}.flash-body>span{color:var(--muted-foreground);font-size:15px;line-height:1.6}.flash-body>strong{letter-spacing:-.035em;text-wrap:pretty;font-size:25px;font-weight:610;line-height:1.3}.flash-revealed{background:#fcfcff;border-color:#d7ddfc}.flash-revealed .flash-body>strong{color:var(--primary)}.flash-body .takeaway{color:var(--foreground);border-top:1px solid var(--border);padding-top:15px;font-size:12px}.flash-card-bottom{color:var(--faint);align-items:center;gap:7px;font-size:10px;display:flex}.flash-card-bottom svg{width:12px;height:12px}.flash-actions{grid-template-columns:1fr 1fr;gap:12px;display:grid}.flash-hint{text-align:center;color:var(--faint);margin-top:17px;font-size:11px}.flash-source{width:fit-content;margin:8px auto 0;display:flex}.results{text-align:center;max-width:500px;margin-inline:auto;padding-top:37px}.result-art{width:110px;margin:0 auto 29px;position:relative}.result-art .progress-ring{width:96px;height:96px;margin-inline:auto}.result-art .ring-value,.result-art .ring-track{stroke-width:2.4px}.result-art>span{color:var(--primary);position:absolute;top:0;right:-4px;transform:rotate(15deg)}.results h1{letter-spacing:-.045em;margin-top:11px;font-size:39px;font-weight:630;line-height:1.15}.result-summary{color:var(--muted-foreground);margin-top:15px;font-size:14px;line-height:1.75}.result-list{background:var(--surface);border:1px solid var(--border);text-align:left;border-radius:20px;margin:31px 0 25px;padding:4px 20px}.result-list details+details{border-top:1px solid var(--border)}.result-list summary{cursor:pointer;align-items:center;gap:12px;min-height:61px;font-size:13px;font-weight:500;list-style:none;display:flex}.result-list summary::-webkit-details-marker{display:none}.result-list summary>svg:last-child{width:14px;height:14px;color:var(--faint);margin-left:auto}.result-status{background:var(--secondary);color:var(--muted-foreground);border-radius:50%;place-items:center;width:28px;height:28px;display:grid}.result-status-correct{background:var(--success-surface);color:var(--success)}.result-status svg{width:14px;height:14px}.result-list details>div{padding:0 0 18px 40px;font-size:12px;line-height:1.6}.result-list details>div p{margin-bottom:6px;font-weight:520}.result-list details>div span{color:var(--muted-foreground)}.result-review{width:100%;margin-top:10px}.result-home{margin-top:12px}.dialog-overlay{z-index:30;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);animation:fade .18s var(--ease);background:#0f101840;position:fixed;inset:0}.dialog-content{z-index:40;background:var(--surface);border:1px solid var(--border);width:min(440px,100% - 32px);max-height:calc(100dvh - 48px);animation:fade .18s var(--ease);border-radius:28px;padding:32px;position:fixed;top:50%;left:50%;overflow-y:auto;transform:translate(-50%,-50%);box-shadow:0 24px 80px #00000026}.dialog-close{position:absolute;top:12px;right:12px}.about-icon{background:var(--accent-surface);width:48px;height:48px;color:var(--primary);border-radius:15px;place-items:center;margin-bottom:24px;display:grid}.about-icon svg{width:27px;height:27px}.dialog-content h2{letter-spacing:-.035em;padding-right:15px;font-size:26px;font-weight:620;line-height:1.2}.dialog-content>p{color:var(--muted-foreground);margin-top:12px;font-size:13px;line-height:1.65}.about-rows{flex-direction:column;gap:20px;margin:28px 0 15px;display:flex}.about-rows>div{gap:13px;display:flex}.about-rows>div>svg{width:18px;height:18px;color:var(--muted-foreground);margin-top:1px}.about-rows p{flex-direction:column;gap:5px;font-size:12px;display:flex}.about-rows strong{font-weight:580}.about-rows span{color:var(--muted-foreground);line-height:1.55}.reset-link{margin:17px auto -13px;font-size:11px;display:block}.dialog-actions{flex-direction:column;gap:10px;margin-top:25px;display:flex}.storage-notice{background:var(--error-surface);border-radius:12px;max-width:600px;margin:8px auto;padding:12px 16px;font-size:12px}@keyframes enter{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes fade{0%{opacity:0}to{opacity:1}}@media (hover:hover) and (pointer:fine){.button-primary:hover{background:#354ce6}.button-secondary:hover{background:#e6e6e8}.button-ghost:hover{color:var(--foreground);background:#ebebed}.mode-card:hover{border-color:#c3c3cb}.mode-selected:hover{border-color:var(--primary)}.answer:not(:disabled):hover{background:#fbfbff;border-color:#b6c0ff}.source-link:hover,.home-footer a:hover{color:var(--primary)}}@media (width<=600px){.app{padding-inline:22px}.site-header{height:79px}.brand{gap:9px;font-size:23px}.brand-mark{border-radius:10px;width:31px;height:31px}.brand-mark svg{width:19px;height:19px}.header-caption{display:none}.header-right{margin-right:-7px}.home{padding-top:24px}.intro{margin-bottom:29px}.intro .eyebrow{font-size:10px}.intro h1{letter-spacing:-.05em;margin-top:16px;margin-bottom:13px;font-size:39px}.intro p{font-size:14px;line-height:1.65}.mobile-break{display:initial}.mode-grid{gap:12px;margin-bottom:25px}.mode-card{border-radius:21px;padding:17px 17px 19px}.mode-radio{width:17px;height:17px;top:13px;right:13px}.deck-art{transform-origin:0;width:95px;height:102px;margin-left:0;transform:scale(.86)}.mode-name{margin-top:0;font-size:16px}.mode-description{letter-spacing:-.02em;font-size:10px;line-height:1.5}.section-label h2{font-size:12px}.section-label>span{font-size:10px}.segment-item{min-height:36px;font-size:11px}.level-description{min-height:17px;font-size:11px}.topic-row{min-height:57px;margin-top:12px}.topic-row>span{font-size:12px}.topic-select select{max-width:190px;font-size:16px}.start-button{min-height:54px;font-size:14px}.round-hint{gap:7px;font-size:10px}.progress-card{border-radius:18px;gap:11px;margin-top:24px;padding:16px}.progress-card .progress-ring{width:40px;height:40px}.progress-card h2{font-size:12px}.progress-card p{font-size:10px}.mistakes-button{display:none}.mobile-mistakes{width:100%;color:var(--primary);background:0 0;border:0;justify-content:center;align-items:center;gap:7px;padding:14px 8px 0;font-size:11px;display:flex}.mobile-mistakes svg{width:13px;height:13px}.home-footer{gap:5px;padding-top:23px;font-size:9px}.play-screen{padding-top:15px}.round-progress{margin:8px 0 24px}.situation{font-size:17px;line-height:1.55}.question-heading h1{margin-top:14px;margin-bottom:22px;font-size:21px}.answer{gap:12px;min-height:62px;padding:13px 14px;font-size:13px}.answer-result{display:none}.feedback{gap:10px}.feedback p{font-size:13px}.feedback h2{font-size:12px}.keyboard-hint,.app-quiz .play-footer{display:none}.play-footer{margin-top:30px;font-size:9px}.flash-heading{margin-top:20px;margin-bottom:25px;font-size:25px}.flash-card{min-height:340px;padding:23px}.flash-body>strong{font-size:23px}.flash-body>span,.flash-actions .button{font-size:14px}.flash-hint{font-size:10px}.results{padding-top:35px}.results h1{font-size:36px}.result-summary{font-size:13px}.result-list{padding-inline:17px}.dialog-content{border-radius:25px;padding:29px 25px}}@media (width<=359px){.app{padding-inline:17px}.intro h1{font-size:34px}.mode-card{padding-inline:13px}.mode-description{font-size:9px}.segment-item{font-size:10px}.home-footer>span{max-width:180px}}.starter-description{align-items:flex-start;gap:12px;padding:20px 4px 24px;display:flex}.starter-icon{background:var(--accent-surface);color:var(--primary);border-radius:12px;flex-shrink:0;place-items:center;width:38px;height:38px;display:grid}.starter-description h3{margin:0 0 5px;font-size:14px;font-weight:600}.starter-description p{color:var(--muted-foreground);font-size:13px;line-height:1.5}.practice-options{margin-top:24px}.glossary-nav{gap:6px;min-height:44px;padding:8px 0 8px 8px;font-size:12px}.glossary-nav svg{width:16px;height:16px}.term-button{min-height:24px;font:inherit;color:inherit;text-align:inherit;text-underline-offset:4px;background:0 0;border:0;margin:-2px 0;padding:2px 0;-webkit-text-decoration:underline dotted #9a9eaf;text-decoration:underline dotted #9a9eaf;text-decoration-thickness:1px;display:inline}.term-button:focus-visible{border-radius:3px}.answer-explanation{border-top:1px solid var(--border);margin-top:24px;padding:20px 0}.answer-explanation h2{margin-bottom:8px;font-size:13px;font-weight:600}.answer-explanation p{color:var(--muted-foreground);font-size:14px;line-height:1.65}.answer-explanation .source-link{margin-top:8px}.answer-panel{flex-direction:column;gap:12px;margin-top:24px;padding:20px 0 8px;display:flex}.answer-panel>.button{width:100%}.answer-panel .keyboard-hint{text-align:center}.answer-panel-ready{border-top:1px solid var(--border)}.flash-card-toggle{z-index:1;border-radius:inherit;background:0 0;border:0;position:absolute;inset:0}.flash-card-toggle:active{background:#11111108}.flash-card-top,.flash-body,.flash-card-bottom{z-index:2;pointer-events:none;position:relative}.flash-card .term-button{pointer-events:auto}.glossary-sheet{z-index:40;background:var(--surface);border:1px solid var(--border);width:min(480px,100% - 32px);max-height:min(760px,100dvh - 48px);animation:fade .18s var(--ease);border-radius:28px;flex-direction:column;padding:24px 24px 0;display:flex;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 24px 80px #00000026}.glossary-top{flex-shrink:0;justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.glossary-kicker{color:var(--muted-foreground);align-items:center;gap:7px;margin-bottom:8px;font-size:12px;display:flex}.glossary-kicker svg{width:15px;height:15px}.glossary-top h2{letter-spacing:-.035em;font-size:26px;font-weight:620;line-height:1.2}.glossary-top h2:focus{outline:none}.glossary-sheet>p{color:var(--muted-foreground);margin:12px 0 20px;font-size:13px;line-height:1.5}.glossary-search{background:var(--background);border:1px solid var(--border);border-radius:13px;flex-shrink:0;align-items:center;gap:9px;min-height:48px;padding:0 12px;display:flex}.glossary-search:focus-within{outline:2px solid var(--primary);outline-offset:2px}.glossary-search>svg{width:18px;height:18px;color:var(--muted-foreground)}.glossary-search input{width:100%;min-width:0;color:var(--foreground);background:0 0;border:0;outline:0;padding-block:12px;font-size:16px}.glossary-search input::-webkit-search-cancel-button{display:none}.glossary-search button{width:32px;height:32px;color:var(--muted-foreground);background:0 0;border:0;border-radius:8px;flex-shrink:0;place-items:center;display:grid}.glossary-search button svg{width:16px;height:16px}.glossary-count{min-height:48px;color:var(--muted-foreground);flex-shrink:0;justify-content:space-between;align-items:center;font-size:11px;display:flex}.glossary-count button{min-height:40px;color:var(--primary);background:0 0;border:0;padding:6px 0 6px 12px}.glossary-list{overscroll-behavior:contain;min-height:0;padding:0 4px max(24px, env(safe-area-inset-bottom,0px));margin-inline:-4px;overflow-y:auto}.glossary-entry{border-top:1px solid var(--border);padding:20px 0 16px}.glossary-entry h3{letter-spacing:-.025em;margin:0 0 10px;font-size:20px;font-weight:600}.glossary-entry p{font-size:15px;line-height:1.65}.glossary-example{background:var(--background);color:var(--muted-foreground);border-radius:12px;margin:14px 0 5px;padding:12px 14px;font-size:13px;line-height:1.6}.glossary-empty{text-align:center;padding:24px 8px 32px}.glossary-empty>svg{color:var(--faint);margin:0 auto 12px}.glossary-empty h3{margin:0 0 8px;font-size:17px}.glossary-empty p{color:var(--muted-foreground);margin-bottom:16px;font-size:13px;line-height:1.5}@media (width<=600px){.header-right{gap:4px}.round-label{display:none}.round-nav{gap:8px}.answer-panel{z-index:10;background:var(--background);padding:16px 0 max(16px, env(safe-area-inset-bottom,0px));position:sticky;bottom:0}.answer-panel-ready{box-shadow:0 -12px 16px var(--background)}.glossary-sheet{width:100%;max-height:calc(100dvh - max(16px, env(safe-area-inset-top,0px)));border-radius:24px 24px 0 0;padding:24px 22px 0;top:auto;bottom:0;left:0;transform:none}.flash-heading{margin-top:12px;margin-bottom:22px;font-size:22px}}@media (height<=560px){.answer-panel{position:static}.glossary-sheet{overflow-y:auto}.glossary-list{flex-shrink:0;overflow:visible}.glossary-kicker,.glossary-sheet>p{display:none}.glossary-top{margin-bottom:12px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.level-section{margin:0 0 26px}.level-section .level-description{min-height:38px;margin-bottom:0}.mode-option{flex-direction:column;min-width:0;display:flex}.mode-option .mode-card{flex:1;width:100%}.mode-start{width:100%;min-height:48px;margin-top:12px}.mode-round-hint{text-align:center;color:var(--muted-foreground);margin:10px 0 0;font-size:12px}.header-glossary{gap:7px;font-size:13px}.resume-section{margin-bottom:26px}.resume-section .resume-round{margin-bottom:8px}.resume-note{color:var(--muted-foreground);margin:0 12px;font-size:12px;line-height:1.5}.glossary-tile{text-align:left;border:1px solid var(--border);background:#fff;border-radius:20px;align-items:center;gap:14px;width:100%;margin:0 0 20px;padding:20px;display:flex}.glossary-tile-icon{width:44px;height:44px;color:var(--primary);background:#eef0ff;border-radius:12px;flex-shrink:0;place-items:center;display:grid}.glossary-tile>span:nth-child(2){flex:1}.glossary-tile strong,.glossary-tile small{display:block}.glossary-tile strong{font-size:15px;font-weight:600}.glossary-tile small{color:var(--muted-foreground);margin-top:4px;font-size:12px;line-height:1.5}.glossary-tile>svg{width:17px;color:var(--primary)}.round-nav .level-trigger{gap:5px;min-height:44px;padding:0 8px;font-size:13px}.level-trigger svg{width:13px;height:13px}.round-status{align-items:center;gap:14px;margin:8px 0 26px;display:flex}.round-status>span{color:var(--muted-foreground);white-space:nowrap;font-size:11px}.round-status .round-progress{flex:1;margin:0}.level-options{gap:10px;margin:24px 0 18px;display:grid}.level-option{text-align:left;border:1.5px solid var(--border);background:#fff;border-radius:16px;align-items:center;gap:16px;padding:16px;display:flex}.level-option[aria-pressed=true]{border-color:var(--primary);background:#f3f4ff}.level-option>span:first-child{flex:1}.level-option strong,.level-option small{display:block}.level-option strong{font-size:15px;font-weight:600}.level-option small{color:var(--muted-foreground);margin-top:5px;font-size:12px;line-height:1.5}.level-radio{border:1px solid var(--border);border-radius:50%;flex-shrink:0;place-items:center;width:22px;height:22px;display:grid}.level-option[aria-pressed=true] .level-radio{background:var(--primary);color:#fff;border-color:var(--primary)}.level-radio svg{width:14px;height:14px}.level-consequence{color:var(--muted-foreground);margin:0 0 18px;font-size:13px;line-height:1.6}.level-apply,.level-cancel{width:100%}.level-cancel{margin-top:8px}@media (width<=600px){.mode-grid{gap:12px;margin-bottom:24px}.mode-option .mode-card{border-radius:20px;padding:18px 14px}.mode-option .mode-name{font-size:19px}.mode-option .mode-description{font-size:12px;line-height:1.5}.mode-start{border-radius:13px;gap:6px;padding:0 10px;font-size:13px}.mode-start svg{width:15px}.mode-round-hint{font-size:10px}.level-section{margin-bottom:22px}.round-nav{gap:2px}.round-nav .back-button,.round-nav .glossary-nav,.round-nav .level-trigger{padding:0 4px;font-size:12px}.glossary-tile{gap:12px;padding:16px}.level-sheet{width:100%;max-width:none;max-height:92dvh;padding-bottom:max(24px, env(safe-area-inset-bottom));border-radius:24px 24px 0 0;top:auto;bottom:0;left:0;overflow-y:auto;transform:none}}@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}