/*! 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-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y: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;--shadow-sm:0 1px 3px 0 #0000001a, 0 1px 2px -1px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--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{.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.relative{position:relative}.start{inset-inline-start:var(--spacing)}.hidden{display:none}.table{display:table}.table-row{display:table-row}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}}*{box-sizing:border-box}html{background:var(--bg)}body{background:radial-gradient(circle at 10% 10%, #fffffff2, transparent 30rem), radial-gradient(circle at 90% 32%, #d6d3ffb3, transparent 32rem), var(--bg);min-width:320px;color:var(--text);margin:0;font-family:Inter,SF Pro Display,PingFang SC,Microsoft YaHei,sans-serif;font-size:16px}.auth-shell{place-items:center;min-height:100vh;padding:24px;display:grid}.auth-card{background:#faf7eff0;border:1px solid #5b524333;border-radius:4px 26px;width:min(100%,440px);padding:clamp(30px,7vw,52px);box-shadow:0 2px 3px #342f2614,0 20px 55px #35483d21}.auth-brand{width:58px;height:58px;margin-bottom:24px;display:block}.auth-card .eyebrow{color:#7c7667;letter-spacing:.14em;margin:0 0 9px;font-size:11px;font-weight:800}.auth-card h1{color:#2f302a;margin:0 0 10px;font-family:Cormorant Garamond,Georgia,serif;font-size:clamp(34px,8vw,48px);line-height:1}.auth-card>p:not(.eyebrow,.auth-message){color:#706b5e;margin:0 0 26px;line-height:1.7}.auth-card form,.auth-card label{gap:9px;display:grid}.auth-card form{gap:14px}.auth-card label span{color:#5f5b50;font-size:12px;font-weight:700}.auth-card input{min-height:50px;color:var(--text);font:inherit;background:#fffdf7bf;border:1px solid #c9c0af;border-radius:3px 11px;outline:0;padding:0 14px}.auth-card input:focus{border-color:#52725f;box-shadow:0 0 0 3px #355c4b1c}.auth-card form button{color:#fffdf7;min-height:50px;font:inherit;background:#355c4b;border:0;border-radius:3px 11px;font-weight:700;box-shadow:0 9px 18px #35483d2e}.auth-card form button:disabled{cursor:wait;opacity:.62}.auth-message{color:#355c4b;margin:16px 0 0;font-size:13px}.auth-message.error{color:#8e4639}.auth-card small{color:#8a8373;margin-top:20px;line-height:1.5;display:block}.account-chip{color:#6d685c;align-items:center;gap:8px;font-size:11px;display:flex}.account-chip span{text-overflow:ellipsis;white-space:nowrap;max-width:150px;overflow:hidden}.account-chip button{color:#4e6256;font:inherit;background:#faf7efb8;border:1px solid #bdb4a4;border-radius:99px;padding:5px 8px}button,input{font:inherit}button{color:inherit;cursor:pointer;touch-action:manipulation}button:focus-visible,input:focus-visible{outline-offset:3px;outline:3px solid #5c55d859}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.topbar{z-index:20;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#f9f8ffe0;border-bottom:1px solid #4a418f1a;grid-template-columns:1fr auto 1fr;align-items:center;height:72px;padding:0 clamp(20px,5vw,72px);display:grid;position:sticky;top:0}.brand{letter-spacing:-.03em;background:0 0;border:0;align-items:center;gap:10px;width:fit-content;min-height:48px;padding:0;font-family:Georgia,Times New Roman,serif;font-size:22px;font-weight:700;display:flex}.brand-area{align-items:center;gap:14px;min-width:0;display:flex}.mini-activity{background:#faf7ef94;border:1px solid #68593e33;border-radius:3px 12px;align-items:center;gap:9px;min-height:46px;padding:6px 10px;transition:border-color .16s,background-color .16s;display:flex}.mini-activity:hover{background:#faf7efe6;border-color:#849a89}.mini-heatmap{grid-template-columns:repeat(7,7px);gap:2px;display:grid}.mini-heatmap i{border-radius:2px;width:7px;height:7px}.mini-activity-copy{color:#3f493f;text-align:left;font-family:Cormorant Garamond,Georgia,serif;font-size:13px;font-weight:700;line-height:1}.mini-activity-copy small{color:var(--text-soft);margin-top:3px;font-family:Libre Baskerville,Georgia,serif;font-size:8px;font-weight:400;display:block}.brand-mark{color:#fff;background:linear-gradient(145deg,#756ee9,#514ac9);border-radius:12px 12px 12px 4px;place-items:center;width:38px;height:38px;font-family:Georgia,serif;font-size:20px;display:grid;box-shadow:0 8px 18px #5c55d84d}nav{align-items:center;gap:8px;height:100%;padding:5px;display:flex}nav button{min-width:72px;min-height:44px;color:var(--text-soft);background:0 0;border:0;border-radius:12px;padding:0 18px;font-weight:600;transition:color .18s,background-color .18s}.day-chip{color:#9b4d38;background:#fff7f2;border:1px solid #ffd9c9;border-radius:99px;justify-self:end;align-items:center;gap:8px;min-height:40px;padding:0 14px;font-size:13px;font-weight:700;display:flex}.day-dot{background:var(--accent);border-radius:50%;width:8px;height:8px;box-shadow:0 0 0 4px #ff745221}.study-page,.library{width:min(1120px,100% - 40px);margin:0 auto;padding:52px 0 90px}.welcome-strip{justify-content:space-between;align-items:center;gap:32px;display:flex}.eyebrow{color:var(--primary);letter-spacing:.14em;margin:0 0 10px;font-size:12px;font-weight:800}h1,h2,p{margin-top:0}h1,h2{font-family:Georgia,Songti SC,serif}h1{letter-spacing:-.04em;margin-bottom:0;font-size:clamp(32px,4vw,46px);line-height:1.16}.daily-progress{align-items:center;gap:16px;display:flex}.progress-ring{--value:0deg;background:conic-gradient(var(--primary) var(--value), #e2dff3 0);border-radius:50%;place-items:center;width:64px;height:64px;display:grid;position:relative}.progress-ring:after{background:var(--bg);content:"";border-radius:50%;width:50px;height:50px;position:absolute}.progress-ring span{z-index:1;font-size:12px;font-weight:800;position:relative}.daily-progress p{color:var(--text-soft);margin:0}.daily-progress strong{color:var(--text);font-variant-numeric:tabular-nums;font-size:20px}.daily-progress small{margin-top:4px;display:block}.category-tabs{grid-template-columns:repeat(6,1fr);gap:16px;margin:44px 0 30px;display:grid}.activity-card{background-color:#faf7efc2;background-image:linear-gradient(#faf7efdb,#faf7efdb),url(/paper-texture.png);background-size:auto,520px;border:1px solid #68593e33;border-radius:5px 22px;grid-template-columns:minmax(230px,.8fr) minmax(420px,1.5fr);align-items:center;gap:36px;margin-top:30px;padding:26px 30px;display:grid;box-shadow:0 12px 34px #3e332414}.activity-heading{gap:18px;display:grid}.activity-heading h2{margin:0;font-size:31px}.activity-heading small{color:var(--text-soft);margin-top:7px;font-size:10px;display:block}.activity-summary{align-items:baseline;gap:9px;display:flex}.activity-summary strong{color:var(--primary-deep);font-variant-numeric:tabular-nums;font-family:Cormorant Garamond,Georgia,serif;font-size:38px}.activity-summary span{color:#565248;font-size:12px;font-weight:700}.activity-summary span small{margin-top:2px;font-weight:400}.heatmap{grid-template-columns:repeat(7,46px);justify-content:end;gap:9px;display:grid}.heat-cell,.heat-legend i{background:#ddd9ce;border:1px solid #45483b14;display:block}.heat-cell{aspect-ratio:1;border-radius:4px 10px;min-width:0;transition:transform .16s,box-shadow .16s}.heat-cell:hover{z-index:1;transform:translateY(-2px)scale(1.05);box-shadow:0 6px 14px #2b453726}.heat-cell.today{outline-offset:2px;outline:3px solid #a84c3d}.level-0{background:#ddd9ce!important}.level-1{background:#b8cbbb!important}.level-2{background:#82a48d!important}.level-3{background:#4f7b62!important}.level-4{background:#264d3b!important}.heat-legend{color:var(--text-soft);grid-column:2;justify-content:flex-end;align-items:center;gap:5px;margin-top:-22px;font-size:9px;display:flex}.heat-legend i{border-radius:3px;width:12px;height:12px}.category-tabs button{text-align:left;background:#ffffffa3;border:1px solid #5349961a;border-radius:18px;align-items:center;gap:12px;min-height:132px;padding:22px;transition:transform .18s,border-color .18s,box-shadow .18s,background-color .18s;display:flex;box-shadow:0 4px 16px #372e7608}.category-tabs button:first-child,.category-tabs button:nth-child(2),.category-tabs button:nth-child(3){grid-column:span 2}.category-tabs button:nth-child(4),.category-tabs button:nth-child(5){grid-column:span 3}.category-tabs button:hover{box-shadow:var(--shadow-sm);background:#fff;border-color:#c9c5ed;transform:translateY(-2px)}.category-tabs button.active{background:#fff;border-color:#aaa4ec;box-shadow:0 12px 30px #4a409c21}.tab-symbol{color:#fff;border-radius:13px;flex:0 0 40px;place-items:center;width:40px;height:40px;font-weight:800;display:grid}.category-tabs strong,.category-tabs small{display:block}.category-tabs strong{font-family:Cormorant Garamond,Georgia,Songti SC,serif;font-size:20px}.category-tabs small{color:var(--text-soft);margin-top:4px;font-size:13px}.learning-stage{width:min(780px,100%);margin:0 auto}.study-breadcrumb{grid-template-columns:auto 1fr;align-items:center;gap:22px;margin-bottom:26px;display:grid}.study-breadcrumb button{min-height:44px;color:var(--text-soft);background:#faf7ef9e;border:1px solid #bfb6a3;border-radius:3px 11px;padding:0 14px;font-size:13px}.study-breadcrumb h1{margin:0;font-size:36px}.session-meta{color:var(--text-soft);justify-content:space-between;padding:0 4px 12px;font-size:13px;display:flex}.counter{font-variant-numeric:tabular-nums;font-weight:700}.progress-line{background:#5c55d821;border-radius:99px;height:5px;margin-bottom:16px;overflow:hidden}.progress-line span{transform-origin:0;border-radius:inherit;background:linear-gradient(90deg,#756ee9,#9b78e5);width:100%;height:100%;transition:transform .24s;display:block}.study-card{background:radial-gradient(circle at 90% 10%, #eceafee6, transparent 17rem), var(--surface);min-height:480px;box-shadow:var(--shadow-lg);border:1px solid #564c9e24;border-radius:30px;padding:clamp(24px,5vw,46px)}.card-labels{justify-content:space-between;align-items:center;display:flex}.type-badge{color:var(--primary-deep);background:var(--primary-soft);border:1px solid #d9d5f6;border-radius:99px;padding:7px 11px;font-size:12px;font-weight:800}.sound-button{border:1px solid var(--border);min-height:44px;color:var(--text-soft);background:#fff;border-radius:12px;align-items:center;gap:7px;padding:0 13px;font-size:13px;transition:border-color .18s,color .18s,background-color .18s;display:flex}.speaker-icon{color:var(--primary);font-size:20px}.prompt-block{text-align:center;align-content:center;place-items:center;min-height:250px;padding:32px 0 26px;display:grid}.prompt-caption{color:var(--text-soft);margin-bottom:14px;font-size:13px}.prompt-block h2{max-width:620px;margin-bottom:24px;font-size:clamp(30px,5vw,48px);font-weight:500;line-height:1.3}.word-prompt h2{letter-spacing:-.04em;margin-bottom:10px;font-size:clamp(44px,8vw,72px)}.phonetic{color:var(--primary);margin:0;font-family:Georgia,serif;font-size:17px}.spelling-hint{min-height:64px;color:var(--primary-deep);letter-spacing:.04em;justify-content:center;align-items:center;gap:14px;font-family:Georgia,serif;font-size:clamp(32px,6vw,54px);font-weight:600;display:flex}.hidden-letters{color:#bbb6d8;letter-spacing:.02em;font-size:.62em}.hint-copy{color:#8c87a3;margin:5px 0 0;font-size:12px}.teacher-note{color:#8c4b37;background:#fff7f2;border:1px solid #ffddcf;border-radius:12px;align-items:center;gap:9px;margin:-4px 0 20px;padding:12px 14px;font-size:13px;display:flex}.teacher-note span{color:#fff;background:var(--accent);border-radius:5px;padding:3px 6px;font-size:10px;font-weight:800}.primary-action{color:#fff;background:linear-gradient(135deg,#6e67e3,#514ac9);border:0;border-radius:16px;justify-content:center;align-items:center;gap:14px;width:100%;min-height:56px;font-weight:700;transition:transform .18s,box-shadow .18s;display:flex;box-shadow:0 14px 26px #5c55d842}.primary-action:hover{transform:translateY(-2px);box-shadow:0 18px 34px #5c55d857}.primary-action:active{transform:translateY(0)}kbd{background:#00000021;border:1px solid #ffffff40;border-radius:6px;padding:4px 8px;font-size:10px;font-weight:500}.answer-panel{grid-template-columns:1fr 1fr;gap:12px;animation:.24s ease-out both reveal;display:grid}.definition-block,.example-block{border:1px solid var(--border);background:var(--surface-soft);border-radius:15px;padding:18px}.definition-block p,.example-block p{margin:8px 0 0;line-height:1.65}.definition-block:first-child p{color:var(--primary-deep);font-family:Georgia,Songti SC,serif;font-size:21px}.info-label{color:var(--text-soft);letter-spacing:.08em;font-size:11px;font-weight:800}.example-block{background:#fffaf6;border-color:#f0dfd6;grid-column:1/-1;padding-right:112px;position:relative}.example-block p{color:#4c455f;font-family:Georgia,serif;font-size:17px}.example-block button{color:#91513d;background:#fff;border:1px solid #ead7cc;border-radius:10px;min-height:40px;padding:0 11px;font-size:12px;position:absolute;top:18px;right:16px}.rating-row{grid-template-columns:1fr 1fr;gap:12px;margin-top:16px;display:grid}.rating-row button{border-radius:15px;min-height:58px;transition:transform .18s,box-shadow .18s}.rating-row button:hover{transform:translateY(-2px)}.rating-row span,.rating-row small{display:block}.rating-row span{font-weight:800}.rating-row small{margin-top:3px;font-size:10px}.again{color:#934a34;background:#fff8f4;border:1px solid #f0cdbf}.known{color:#fff;background:var(--success);border:0;box-shadow:0 10px 22px #22845e38}.save-note{color:var(--text-soft);text-align:center;margin:18px 0 0;font-size:12px}.empty-state{text-align:center;background:#ffffff94;border:1px dashed #b9b3e5;border-radius:28px;align-content:center;place-items:center;min-height:420px;padding:40px;display:grid}.empty-symbol{color:#fff;background:#3e86d7;border-radius:17px;place-items:center;width:56px;height:56px;margin-bottom:20px;font-weight:800;display:grid}.empty-state h2{margin-bottom:8px;font-size:28px}.empty-state p{color:var(--text-soft)}.empty-state button{color:#fff;background:var(--primary);border:0;border-radius:12px;min-height:46px;padding:0 18px}.library-heading{justify-content:space-between;align-items:end;gap:32px;margin-bottom:30px;display:flex}.library-heading h1{margin-bottom:8px}.library-heading p:last-child{color:var(--text-soft);margin:0}.search{width:min(360px,100%);min-height:50px;box-shadow:var(--shadow-sm);background:#fff;border:1px solid #d1cde8;border-radius:15px;align-items:center;gap:10px;padding:0 15px;display:flex}.search-icon{color:var(--primary);font-size:24px}.search input{width:100%;color:var(--text);background:0 0;border:0;outline:0;font-size:16px}.word-table{border:1px solid var(--border);box-shadow:var(--shadow-sm);background:#ffffffe6;border-radius:20px;overflow:hidden}.table-row{border-bottom:1px solid #eeecf6;grid-template-columns:1.1fr 1.7fr 1fr 92px;align-items:center;gap:20px;min-height:62px;padding:10px 22px;font-size:14px;display:grid}.table-row:last-child{border-bottom:0}.table-header{min-height:48px;color:var(--text-soft);letter-spacing:.08em;background:#f3f1fb;font-size:11px;font-weight:800}.word-button{background:0 0;border:0;align-items:center;gap:8px;width:fit-content;min-height:44px;padding:0;font-family:Georgia,serif;font-size:18px;font-weight:700;display:flex}.word-button span{color:var(--primary)}.table-row i{border-radius:50%;width:8px;height:8px;margin-right:8px;display:inline-block}.status{border-radius:99px;width:fit-content;padding:6px 9px;font-size:11px}.status.ready{color:#176646;background:#e5f4ed}.status.review{color:#8e4a34;background:#fff0e8}.table-footnote{color:var(--text-soft);text-align:center;margin-top:18px;font-size:12px}@keyframes reveal{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media (width<=900px){.activity-card{grid-template-columns:1fr}.heat-legend{grid-column:1;margin-top:0}.category-tabs{grid-template-columns:repeat(2,1fr)}.category-tabs button:nth-child(n){grid-column:span 1}.study-page,.library{padding-top:38px}}@media (width<=680px){.topbar{grid-template-columns:1fr auto;padding:0 18px}nav{z-index:30;border-top:1px solid var(--border);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#fffffff5;justify-content:center;height:68px;position:fixed;bottom:0;left:0;right:0}.day-chip{display:none}.study-page,.library{width:min(100% - 28px,1120px);padding-bottom:100px}.welcome-strip{align-items:flex-start}.daily-progress{display:none}.category-tabs{grid-template-columns:1fr;margin:28px 0 24px;padding:0;display:grid}.activity-card{gap:24px;padding:22px}.heatmap{grid-template-columns:repeat(7,minmax(24px,1fr));justify-content:stretch;gap:7px}.category-tabs button{scroll-snap-align:start;min-width:150px}.session-meta{font-size:12px}.study-card{border-radius:24px;min-height:470px}.answer-panel{grid-template-columns:1fr}.example-block{grid-column:auto;padding-right:18px}.example-block button{min-height:44px;margin-top:12px;position:static}.library-heading{display:block}.search{margin-top:22px}.table-row{grid-template-columns:1fr 1.35fr}.table-row>:nth-child(3),.table-row>:nth-child(4){display:none}}@media (width<=430px){h1{font-size:32px}.session-meta>span:first-child{max-width:220px}.rating-row{grid-template-columns:1fr}.prompt-block{min-height:230px}.spelling-hint{flex-wrap:wrap;gap:8px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}:root{--bg:#eee9dd;--surface:#faf7ef;--surface-soft:#f3eee2;--text:#302f29;--text-soft:#716e62;--primary:#355c4b;--primary-deep:#234437;--primary-soft:#e3ebe4;--accent:#a84c3d;--success:#2f7455;--border:#d4cdbd;--shadow-sm:0 8px 24px #3e332414;--shadow-lg:0 26px 70px #3e332424}body{background-color:var(--bg);color:var(--text);background-image:linear-gradient(#f4f0e5c2,#f4f0e5c2),url(/paper-texture.png);background-size:auto,620px;background-attachment:fixed;font-family:Libre Baskerville,Georgia,Songti SC,STSong,serif}.topbar{background:#f4f0e5db;border-bottom-color:#4a423024}.brand{color:#2d4439;font-family:Cormorant Garamond,Georgia,serif;font-size:25px}.brand-mark{background:#355c4b;border-radius:50% 50% 48% 44%;box-shadow:0 6px 14px #274a3b3d}nav button:hover{background:#355c4b0f}.welcome-strip{grid-template-columns:1fr auto auto;display:grid}h1,h2{letter-spacing:-.025em;font-family:Cormorant Garamond,Georgia,Songti SC,serif}.eyebrow{color:#8e4639}.progress-ring{background:conic-gradient(var(--primary) var(--value), #d8d0bf 0)}.progress-ring:after{background:#eee9dd}.add-word-button{color:#fff;background:#355c4b;border:1px solid #355c4b;border-radius:4px 14px;justify-content:center;align-items:center;gap:8px;min-height:46px;padding:0 17px;font-size:13px;font-weight:700;transition:transform .18s,background-color .18s;display:flex;box-shadow:0 8px 18px #355c4b2e}.add-word-button:hover{background:#294d3e;transform:translateY(-2px)}.add-word-button span{font-family:Arial,sans-serif;font-size:19px}.category-tabs button{box-shadow:none;background:#faf7efa8;border-color:#5f523921;border-radius:5px 17px}.category-tabs button:hover,.category-tabs button.active{background:#faf7eff0;border-color:#a69c87;box-shadow:0 12px 28px #3e33241a}.tab-symbol{filter:saturate(.72);border-radius:50% 48% 52% 45%}.progress-line{background:#355c4b21}.progress-line span{background:#355c4b}.study-card{box-shadow:var(--shadow-lg);background-color:#faf7eff0;background-image:linear-gradient(#faf7efe0,#faf7efe0),url(/paper-texture.png);background-size:auto,520px;border-color:#68593e33;border-radius:4px 28px 5px;position:relative;overflow:hidden}.type-badge{color:var(--primary-deep);background:#e3ebe4b8;border-color:#b8c8bb}.sound-button{border-color:var(--border);color:var(--text-soft);background:#faf7efbd}.sound-button:hover{color:var(--primary-deep);background:var(--primary-soft);border-color:#86a190}.spelling-entry{background:#fffdf78c;align-items:center;width:min(560px,100%);min-height:70px;display:flex;position:relative;overflow:hidden}.spelling-entry:after{z-index:2;content:"";pointer-events:none;background:#7c7667;height:2px;position:absolute;bottom:0;left:0;right:0}.fixed-prefix{color:#faf7ef;background:#355c4b;align-self:stretch;place-items:center;min-width:84px;font-family:Cormorant Garamond,Georgia,serif;font-size:clamp(34px,6vw,50px);font-weight:600;display:grid}.spelling-input-shell{flex:1;align-self:stretch;min-width:0;display:block;position:relative}.spelling-slots{pointer-events:none;align-items:center;gap:12px;display:flex;position:absolute;inset:0 18px;overflow:hidden}.spelling-slot{flex:0 0 24px;place-items:center;width:24px;height:70px;display:grid;position:relative}.spelling-slot b{z-index:1;width:24px;color:var(--text);text-align:center;font-family:Cormorant Garamond,Georgia,serif;font-size:clamp(34px,6vw,50px);font-weight:600;line-height:1;display:block;position:relative;transform:translateY(-2px)}.spelling-slot i{border-bottom:2px solid #b6ae9d;width:24px;position:absolute;bottom:14px;left:0;right:0}.spelling-entry input{z-index:1;color:#0000;caret-color:#1677e8;background:0 0;border:0;outline:0;width:100%;min-width:0;height:70px;padding:0 18px;font-family:Cormorant Garamond,Georgia,serif;font-size:clamp(34px,6vw,50px);position:relative}.spelling-feedback{background:#fffdf7b3;border:1px solid;border-radius:4px 15px;justify-content:center;align-items:center;gap:2px;min-height:70px;padding:8px 18px;font-family:Cormorant Garamond,Georgia,serif;font-size:clamp(38px,6vw,54px);font-weight:600;display:flex}.spelling-feedback.correct{border-color:#9bb7a4}.spelling-feedback.wrong{border-color:#d5a79f}.letter-correct{color:#24704c}.letter-wrong{color:#b23d32;text-underline-offset:7px;text-decoration:underline;text-decoration-thickness:2px}.hint-copy{color:var(--text-soft);font-family:Libre Baskerville,Georgia,serif}.teacher-note{color:#77483c;background:#f8ebe2bd;border-color:#dec4b8}.teacher-note span{background:var(--accent)}.definition-block,.example-block{border-color:var(--border);background:#f4efe3b8;border-radius:3px 13px}.definition-block:first-child p{color:var(--primary-deep)}.definition-block em{color:#8e4639;vertical-align:middle;background:#f0ded4;border-radius:99px;margin-right:9px;padding:3px 7px;font-family:Georgia,serif;font-size:12px;font-style:italic;display:inline-block}.example-block{background:#f9f0e8ad;border-color:#decfc1}.primary-action{background:#355c4b;border-radius:3px 13px;box-shadow:0 2px 3px #342f261a,0 10px 20px #35483d29}.primary-action:hover{box-shadow:0 3px 5px #342f261f,0 13px 24px #35483d33}.known{background:#355c4b}.word-table{border-color:var(--border);background:#faf7efe6;border-radius:4px 20px}.table-header{background:#e9e4d7}.library-heading{grid-template-columns:1fr minmax(240px,360px);display:grid}.search{background:#faf7efe6;border-color:#c7bfad;border-radius:4px 14px}.modal-backdrop{z-index:100;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#29271f8f;place-items:center;padding:20px;display:grid;position:fixed;inset:0;overflow-y:auto}.activity-modal{background-color:#faf7ef;background-image:linear-gradient(#faf7efe6,#faf7efe6),url(/paper-texture.png);background-size:auto,520px;border:1px solid #bbb29f;border-radius:5px 24px;width:min(660px,100%);max-height:calc(100dvh - 40px);padding:30px;animation:.22s ease-out both reveal;overflow-y:auto;box-shadow:0 34px 90px #231f174d}.activity-modal-summary{align-items:baseline;gap:10px;margin-bottom:22px;display:flex}.activity-modal-summary strong{color:var(--primary-deep);font-family:Cormorant Garamond,Georgia,serif;font-size:42px}.activity-modal-summary span{color:#565248;font-size:12px;font-weight:700}.activity-modal-summary small{color:var(--text-soft);margin-top:3px;font-size:9px;font-weight:400;display:block}.activity-modal .heatmap{justify-content:center}.activity-modal .heat-legend{grid-column:auto;margin-top:14px}.add-modal{background-color:#faf7ef;background-image:linear-gradient(#faf7efe6,#faf7efe6),url(/paper-texture.png);background-size:auto,520px;border:1px solid #bbb29f;border-radius:5px 24px;width:min(620px,100%);max-height:calc(100dvh - 40px);padding:30px;animation:.22s ease-out both reveal;overflow-y:auto;box-shadow:0 34px 90px #231f174d}.modal-heading{border-bottom:1px solid var(--border);justify-content:space-between;align-items:flex-start;margin-bottom:22px;padding-bottom:18px;display:flex}.modal-heading h2{margin:0;font-size:32px}.close-button{border:1px solid var(--border);background:0 0;border-radius:50%;place-items:center;width:44px;height:44px;font-family:Arial,sans-serif;font-size:24px;display:grid}.add-modal form,.add-modal label{display:grid}.add-modal form{gap:16px}.add-modal label{gap:7px}.add-modal label>span{color:#5f5b50;font-size:12px;font-weight:700}.add-modal input,.add-modal select,.add-modal textarea{width:100%;min-height:48px;color:var(--text);font:inherit;background:#fffdf7c7;border:1px solid #c8c0ae;border-radius:3px 10px;outline:0;padding:11px 13px}.add-modal textarea{resize:vertical;min-height:92px}.add-modal input:focus,.add-modal select:focus,.add-modal textarea:focus{border-color:#557866;box-shadow:0 0 0 3px #355c4b21}.form-grid{grid-template-columns:1.4fr 1fr;gap:14px;display:grid}.lookup-status{color:#4e6256;background:#5e806b14;border-left:3px solid #668573;margin:-4px 0 0;padding:9px 11px;font-size:11px;line-height:1.45}.lookup-status.loading{color:#756d5c;background:#aa927114;border-left-color:#aa9271}.pronunciation-preview{align-content:end;gap:7px;display:grid}.pronunciation-preview>span{color:#5f5b50;font-size:12px;font-weight:700}.pronunciation-preview button{color:#355c4b;min-height:48px;font:inherit;background:#355c4b12;border:1px solid #8da294;border-radius:3px 10px}.pronunciation-preview button:disabled{cursor:not-allowed;opacity:.45}.modal-actions{justify-content:flex-end;gap:10px;padding-top:6px;display:flex}.modal-actions button{background:0 0;border:1px solid #bfb7a5;border-radius:3px 11px;min-height:46px;padding:0 18px}.modal-actions button[type=submit]{color:#fff;background:#355c4b;border-color:#355c4b}.modal-actions button.success{background:#2f7455;border-color:#2f7455}@media (width<=760px){.welcome-strip{grid-template-columns:1fr auto}.welcome-strip .daily-progress{display:none}.library-heading{grid-template-columns:1fr;display:grid}.library-heading .add-word-button{width:100%}}@media (width<=520px){.welcome-strip{grid-template-columns:1fr}.welcome-strip .add-word-button{width:100%}.form-grid{grid-template-columns:1fr}.add-modal{padding:22px}}.topbar{-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border-bottom:0;position:relative}nav{background:#f4f0e57a;border:1px solid #75684f2e;border-radius:3px 14px;gap:4px;height:auto;padding:4px}nav button{border-radius:2px 10px;align-content:center;min-height:48px;padding:4px 18px;line-height:1.05;display:grid}nav button span,nav button small{display:block}nav button span{font-family:Cormorant Garamond,Georgia,serif;font-size:17px;font-weight:700}nav button small{margin-top:4px;font-size:9px;font-weight:500}nav button.active{color:#f8f4e9;background:#355c4b}.category-tabs button{align-items:center;gap:20px}.category-art{filter:sepia(.12)saturate(.82);background-image:url(/category-icon-reference.png);background-repeat:no-repeat;background-size:666px 154px;border-radius:50%;flex:0 0 96px;width:96px;height:96px;display:block}.category-art-mastery{background-position:-20px -5px}.category-art-recognition{background-position:-123px -5px}.category-art-listening{background-position:-328px -5px}.category-art-phrase{background-position:-431px -5px}.category-art-rareMeaning{background-position:-534px -5px}.category-copy{min-width:0}.category-copy strong,.category-copy span,.category-copy small{display:block}.category-copy strong{color:#2f342e;font-size:22px;line-height:1.05}.category-copy span{color:#5f5b50;margin-top:7px;font-family:Libre Baskerville,Georgia,serif;font-size:11px;line-height:1.35}.category-copy small{color:#8a8374;margin-top:8px;font-size:10px}.add-word-button>span:last-child{text-align:left;gap:2px;display:grid}.add-word-button strong,.add-word-button small{display:block}.add-word-button strong{font-family:Cormorant Garamond,Georgia,serif;font-size:16px}.add-word-button small{opacity:.8;font-size:9px;font-weight:500}.study-breadcrumb>div small{color:var(--text-soft);margin-top:3px;font-size:11px;display:block}.prompt-caption small{color:#8b8477;letter-spacing:0;margin-top:5px;font-size:10px;font-weight:400;display:block}.modal-heading>div>small{color:var(--text-soft);font-size:11px}.table-row i{background:#8e846e}.home-topbar{align-items:flex-start;height:188px;padding-top:44px}.home-topbar nav{height:72px;margin-top:0;position:absolute;top:0;left:38%;transform:translate(-50%)}.home-topbar .day-chip{margin-top:-28px}.header-note{width:clamp(190px, calc(var(--message-length) * 7px), 430px);transform-origin:20% 20%;background-color:#f4eedf;background-image:linear-gradient(#f8f3e7c7,#f8f3e7c7),url(/paper-texture.png);background-size:auto,430px;border:1px solid #6f634b33;border-radius:3px 10px 4px 8px;max-width:min(43vw,430px);padding:15px 20px 16px;position:absolute;top:112px;left:clamp(20px,5vw,72px);transform:rotate(-.7deg);box-shadow:1px 2px #6f5e401a,0 9px 22px #453a2714}.header-note:before{content:"";background:radial-gradient(circle at 35% 30%,#d29a86 0 17%,#a65142 25% 62%,#74362f 72%);border:1px solid #5c2b226b;border-radius:50%;width:12px;height:12px;position:absolute;top:-6px;left:50%;transform:translate(-50%);box-shadow:0 2px 3px #422a2047,0 7px 8px #4739271a}.header-note .eyebrow{color:#835044;letter-spacing:.16em;margin-bottom:7px;font-size:8px}.header-note h1{overflow-wrap:break-word;color:#3e443e;letter-spacing:.01em;text-shadow:.35px .25px #2d322d6b,-.25px 0 #4c483d33;text-wrap:balance;width:auto;max-width:400px;font-family:Bradley Hand,Segoe Print,Chalkboard SE,cursive;font-size:clamp(22px,2.8vw,31px);font-weight:500;line-height:1.08}.welcome-strip{grid-template-columns:auto auto;justify-content:end}.activity-preview-card{color:#292c27;text-align:left;background:linear-gradient(#ebe8e0e6,#ebe8e0e6),url(/paper-texture.png) 0 0/520px;border:1px solid #5f564438;border-radius:20px;flex-direction:column;width:min(27vw,320px);min-height:144px;padding:13px 15px 14px;transition:transform .18s,border-color .18s,box-shadow .18s;display:flex;position:absolute;top:20px;left:55%;right:auto;box-shadow:inset 0 1px #ffffffc2,0 10px 28px #463d2d12}.activity-preview-card:hover{border-color:#355c4b61;transform:translateY(-2px);box-shadow:inset 0 1px #fffc,0 16px 36px #463d2d1c}.activity-preview-heading{justify-content:space-between;align-items:flex-start;display:flex}.activity-preview-heading>span:first-child{align-items:baseline;gap:8px;display:flex}.activity-preview-heading strong{font-family:Cormorant Garamond,Georgia,serif;font-size:18px;line-height:1}.activity-preview-heading small{color:#827d72;letter-spacing:.08em;text-transform:uppercase;font-size:9px}.activity-preview-arrow{color:#77756d;font-family:Georgia,serif;font-size:22px;font-weight:300;line-height:.72;transition:transform .18s}.activity-preview-card:hover .activity-preview-arrow{transform:translate(2px)}.activity-preview-heatmap{flex:1;grid-template-columns:repeat(7,1fr);align-content:center;align-self:center;gap:4px;width:72%;max-width:170px;padding-top:8px;display:grid}.activity-preview-heatmap i{aspect-ratio:1;border-radius:4px;width:100%;box-shadow:inset 0 1px #ffffff6b}.activity-preview-heatmap i.empty,.heat-cell.empty{box-shadow:none;background:0 0}@media (width<=900px){.category-tabs button{min-height:148px}}@media (width<=680px){.topbar{padding-left:10px;padding-right:10px}.home-topbar{height:174px;padding-top:34px}.home-topbar nav{height:68px;margin-top:0;position:fixed;inset:auto 0 0;transform:none}.brand-area{gap:8px}.brand{font-size:20px}.brand-mark{width:34px;height:34px}.header-note{width:clamp(140px, calc(var(--message-length) * 4px + 30px), calc(100vw - 190px));background-size:auto,330px;max-width:calc(100vw - 190px);padding:12px 13px 13px;top:88px;left:10px}.header-note .eyebrow{margin-bottom:5px;font-size:8px}.header-note h1{width:auto;max-width:100%;font-size:clamp(17px,5vw,20px);line-height:1.12;overflow:hidden}.welcome-strip{grid-template-columns:1fr;justify-content:stretch}.welcome-strip .add-word-button{width:100%}.activity-preview-card{border-radius:15px;width:min(34vw,100vw - 170px);min-width:124px;min-height:146px;padding:12px;top:14px;left:auto;right:10px}.activity-preview-heading strong{font-size:17px}.activity-preview-heading small{display:none}.activity-preview-heatmap{gap:4px;width:100%;padding-top:10px}.activity-preview-heatmap i{border-radius:4px}nav{border:0;border-top:1px solid var(--border);background-color:#eee9dd;background-image:linear-gradient(#f4f0e5e0,#f4f0e5e0),url(/paper-texture.png);background-size:auto,620px;border-radius:0}.category-tabs button{min-width:0;min-height:128px}}@media (width<=430px){.category-art{background-size:583px 135px;flex-basis:84px;width:84px;height:84px}.category-art-mastery{background-position:-17px -4px}.category-art-recognition{background-position:-108px -4px}.category-art-listening{background-position:-287px -4px}.category-art-phrase{background-position:-377px -4px}.category-art-rareMeaning{background-position:-467px -4px}}.category-art-mastery{background-image:url(/icon-spelling-mastery-v2.png);background-position:50%;background-size:cover}.category-art-recognition{background-image:url(/icon-recognition-v2.png);background-position:50%;background-size:cover}.category-art-listening{background-image:url(/icon-listening-v2.png);background-position:50%;background-size:cover}.category-art-phrase{background-image:url(/icon-phrases-v2.png);background-position:50%;background-size:cover}.category-art-rareMeaning{background-image:url(/icon-hidden-meanings-v2.png);background-position:50%;background-size:cover}.brand-mark{background-color:#f2ecdd;background-image:url(/wordnest-mark-v3.png);background-position:50%;background-size:cover;border:1px solid #2e5343b8;border-radius:13%;flex:0 0 44px;width:44px;height:44px;overflow:hidden;box-shadow:0 0 0 2px #f7f2e6d1,0 6px 15px #313f3326}.brand-mark:after{content:none}.brand{font-weight:700}@media (width<=680px){.brand-mark{flex-basis:40px;width:40px;height:40px}.brand{font-size:22px}}@media (width>=901px){.topbar{grid-template-columns:minmax(260px,1fr) auto minmax(210px,auto) auto;align-items:center;gap:20px;width:min(1440px,100% - 64px);height:auto;min-height:88px;margin:0 auto;padding:16px 0;position:relative}.topbar nav{height:auto;margin:0;position:static;transform:none}.account-chip{justify-self:end;min-width:0}.account-chip span{max-width:190px}.day-chip{justify-self:end}.home-topbar{grid-template-rows:64px 232px;grid-template-columns:minmax(320px,1fr) minmax(360px,460px) minmax(220px,auto);align-items:start;gap:20px clamp(28px,4vw,64px);min-height:320px;padding:24px 0 28px}.home-topbar .brand-area{grid-area:1/1;align-self:center}.home-topbar nav{grid-area:1/2;place-self:center start}.home-topbar .account-chip{grid-area:1/3;align-self:center}.home-topbar .day-chip{display:none}.header-note{grid-area:2/1;align-self:stretch;width:min(100%,480px);max-width:none;min-height:184px;padding:24px 28px;position:relative;top:auto;left:auto}.header-note h1{max-width:420px;font-size:clamp(28px,2.15vw,38px);line-height:1.1}.activity-preview-card{border-radius:4px 22px;grid-area:2/2;align-self:stretch;width:100%;max-width:460px;min-height:216px;padding:18px 22px;position:relative;top:auto;left:auto;right:auto}.activity-preview-heading strong{font-size:23px}.activity-preview-heading small{font-size:10px}.activity-preview-heatmap{flex:none;gap:4px;width:228px;max-width:100%;margin-top:10px;padding-top:0}.study-page.home-page{width:min(1440px,100% - 64px);padding:0 0 96px}.home-page .welcome-strip{border-top:1px solid #68593e2e;border-bottom:1px solid #68593e2e;justify-content:flex-end;align-items:center;gap:32px;min-height:92px;margin:8px 0 32px;padding:18px 22px;display:flex}.home-page .daily-progress{margin-right:auto}.home-page .add-word-button{min-width:190px;min-height:58px}.home-page .category-tabs{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:0}.home-page .category-tabs button{min-width:0;min-height:164px;padding:24px}.home-page .category-tabs button:nth-child(n),.home-page .category-tabs button:nth-child(4),.home-page .category-tabs button:nth-child(5){grid-column:span 1}.session-page{width:min(980px,100% - 64px);padding:44px 0 100px}.learning-stage{width:100%}.study-breadcrumb{grid-template-columns:auto minmax(0,1fr);gap:28px;margin-bottom:32px}.study-breadcrumb button{min-width:142px}.study-breadcrumb h1{font-size:clamp(42px,4vw,56px);line-height:1}.session-meta{align-items:baseline;padding:0 2px 14px;font-size:14px}.session-meta>span:first-child{max-width:68ch}.progress-line{margin-bottom:24px}.study-card{min-height:520px;padding:42px 52px 48px}.prompt-block{min-height:300px}.prompt-block h2{max-width:16ch}.answer-panel,.rating-row{max-width:780px;margin-left:auto;margin-right:auto}.library{width:min(1180px,100% - 64px)}}@media (width>=901px) and (width<=1199px){.topbar{grid-template-columns:minmax(220px,1fr) auto auto}.topbar .day-chip{display:none}.home-topbar{grid-template-rows:64px 224px;grid-template-columns:minmax(280px,1fr) auto minmax(150px,auto);column-gap:20px;min-height:360px}.home-topbar .brand-area{grid-area:1/1}.home-topbar nav{grid-area:1/2;justify-self:start}.home-topbar .account-chip{grid-area:1/3;place-self:center end}.header-note{grid-area:2/1}.activity-preview-card{grid-area:2/2/auto/4;justify-self:end;width:min(100%,440px)}.activity-preview-heatmap{width:218px}.home-page .category-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=680px){.home-topbar{height:210px;padding:0 10px;display:block;position:relative}.home-topbar .brand-area{z-index:2;width:calc(66vw - 20px);position:absolute;top:14px;left:10px}.home-topbar .brand{font-size:clamp(20px,6vw,25px)}.home-topbar .account-chip{z-index:2;gap:5px;width:calc(66vw - 20px);min-width:0;display:flex;position:absolute;top:62px;left:10px}.home-topbar .account-chip span{flex:1;min-width:0;max-width:none;font-size:10px}.home-topbar .account-chip button{flex:none;min-width:44px;min-height:36px;padding:4px 7px}.home-topbar .activity-preview-card{top:14px}.home-topbar .header-note{top:108px}.topbar:not(.home-topbar){grid-template-columns:minmax(0,1fr) auto;align-items:center;height:72px;min-height:72px;padding:8px 12px}.topbar:not(.home-topbar) .brand-area{min-width:0}.topbar:not(.home-topbar) .brand{font-size:20px}.topbar:not(.home-topbar) .brand-mark{flex-basis:38px;width:38px;height:38px}.topbar:not(.home-topbar) .account-chip{justify-self:end;min-width:0;max-width:calc(100vw - 180px)}.topbar:not(.home-topbar) .account-chip span{min-width:0;max-width:104px}.session-page{padding-top:16px}.study-breadcrumb{grid-template-columns:auto minmax(0,1fr);gap:14px;margin-bottom:16px}.study-breadcrumb button{min-width:116px;min-height:44px;padding:0 11px;font-size:12px}.study-breadcrumb h1{font-size:clamp(30px,9vw,38px);line-height:.94}.study-breadcrumb>div small{margin-top:5px;font-size:10px}.session-meta{padding-bottom:9px}.progress-line{margin-bottom:14px}}@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}