@layer reset{*,:before,:after{box-sizing:border-box}body,h1,h2,h3,p,ul,ol,dl,dd{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea,summary{-webkit-tap-highlight-color:transparent}button,a,summary{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}a{color:inherit}svg{vertical-align:middle;flex-shrink:0}img,svg{max-width:100%}input,textarea,select{min-width:0;max-width:100%}input,textarea{width:100%}button{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,[tabindex="-1"]:focus-visible{outline:3px solid var(--focus);outline-offset:3px}h1:focus,main:focus{outline:none}[hidden]{display:none!important}button svg,a svg{pointer-events:none}button{-webkit-user-select:none;user-select:none}html{-webkit-text-size-adjust:100%;overscroll-behavior:none;scroll-padding-top:100px;scroll-padding-bottom:120px}body{overflow-wrap:anywhere}html:has(dialog[open]){overflow:hidden}fieldset{min-width:0}textarea{resize:vertical}button{border:0}table{border-collapse:collapse}}@layer tokens{:root{-webkit-font-smoothing:antialiased;--bg:#f5f6f8;--paper:#fff;--ink:#19212e;--muted:#586171;--accent:#205ccc;--accent-fill:#205ccc;--on-accent:#fff;--tint:#edf3ff;--line:#dee2e9;--input-line:#7c8594;--success:#227046;--success-tint:#eaf5ee;--danger:#b63434;--danger-tint:#fdf0ef;--focus:#205ccc;--subtle:#eceff4;--shadow:0 3px 18px #19212e06;--radius:20px;--space:24px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}:root[data-theme=dark]{--bg:#11151c;--paper:#1b212c;--ink:#f0f3fa;--muted:#aeb9ca;--accent:#9bbdff;--accent-fill:#9bbdff;--on-accent:#112446;--tint:#24344c;--line:#333d4d;--input-line:#7e8ca2;--success:#8bd6ae;--success-tint:#213a30;--danger:#faa;--danger-tint:#422b30;--focus:#b1ceff;--subtle:#252e3d;--shadow:none;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}body{background:var(--bg);color:var(--ink);min-width:280px;font-size:1rem;line-height:1.55}h1{letter-spacing:-.035em;font-size:clamp(1.875rem,5vw,2.5rem);font-weight:720;line-height:1.2}h2{letter-spacing:-.015em;font-size:1.1875rem;font-weight:650;line-height:1.35}h3{font-size:1rem;font-weight:650;line-height:1.4}p{text-wrap:pretty;max-width:75ch}small{font-size:.8125rem;line-height:1.5}strong{font-weight:650}button{font-weight:550}input,textarea,select{font-size:1rem}button,input,select,progress,.stat,dd,.goal-ring{font-variant-numeric:tabular-nums}::selection{background:var(--tint);color:var(--ink)}}@layer components{.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:100;background:var(--paper);border:2px solid var(--accent);padding:12px;position:fixed;inset-block-start:8px;inset-inline-start:8px;transform:translateY(-160%)}.skip-link:focus{transform:none}.app-shell{min-height:100dvh}.sidebar{display:none}.workspace{min-width:0}.wordmark{letter-spacing:-.065em;white-space:nowrap;font-size:1.65rem;font-weight:750;text-decoration:none}.wordmark span{color:var(--accent)}.app-header{padding:calc(12px + env(safe-area-inset-top)) 20px 12px;justify-content:space-between;align-items:center;gap:12px;min-height:70px;display:flex}.header-actions{align-items:center;gap:12px;display:flex}.desktop-breadcrumb{display:none}.icon-button{width:44px;min-width:44px;height:44px;color:var(--muted);background:0 0;border-radius:12px;justify-content:center;align-items:center;text-decoration:none;display:inline-flex}.icon-button[aria-pressed=true]{color:var(--accent);background:var(--tint)}main{width:100%;max-width:1136px;padding:16px 20px calc(110px + env(safe-area-inset-bottom));min-height:calc(100dvh - 80px);margin-inline:auto}.stack{flex-direction:column;gap:24px;min-width:0;display:flex}.muted{color:var(--muted)}.eyebrow{color:var(--muted);margin-block-end:10px;font-size:.8125rem;font-weight:550;line-height:1.5;display:block}.page-heading{padding-block:8px 4px}.page-heading h1{margin-block-end:12px}.page-heading p{color:var(--muted);font-size:1rem}.today-date{color:var(--muted);margin-block-end:12px;font-size:.875rem}.heading-actions{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:20px;display:flex}.section-heading{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.toolbar{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.full{width:100%}.primary,.secondary,.danger-button{white-space:normal;border-radius:12px;justify-content:center;align-items:center;gap:10px;max-width:100%;min-height:48px;padding:12px 18px;font-size:.9375rem;line-height:1.4;text-decoration:none;display:inline-flex}.primary{background:var(--accent-fill);color:var(--on-accent);border:1px solid #0000}.secondary{background:var(--paper);color:var(--ink);border:1px solid var(--input-line)}.danger-button{background:var(--danger);color:var(--paper);border:1px solid #0000}.danger{color:var(--danger)}.text-button{min-height:44px;color:var(--accent);background:0 0;justify-content:center;align-items:center;gap:8px;padding:8px 2px;font-size:.875rem;line-height:1.45;text-decoration:none;display:inline-flex}.back{align-self:flex-start}.offline-badge{color:var(--muted);align-items:center;gap:6px;font-size:.8125rem;display:flex}.bottom-nav{z-index:20;background:var(--paper);border-top:1px solid var(--line);padding:8px max(8px, env(safe-area-inset-right)) calc(8px + env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left));grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;display:grid;position:fixed;inset-block-end:0;inset-inline:0}.bottom-nav a{min-height:52px;color:var(--muted);border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:4px;padding:4px;font-size:.6875rem;line-height:1.2;text-decoration:none;display:flex}.bottom-nav a[aria-current]{color:var(--accent);background:var(--tint);font-weight:650}.app-footer{border-top:1px solid var(--line);color:var(--muted);flex-wrap:wrap;justify-content:space-between;gap:8px;margin-top:40px;padding-top:16px;font-size:.75rem;display:flex}.app-footer a{align-items:center;min-height:44px;display:flex}.app-footer>span{align-self:center}.welcome-note{border-left:3px solid var(--accent);background:var(--tint);border-radius:0 12px 12px 0;justify-content:space-between;align-items:center;gap:16px;padding:16px 18px;display:flex}.welcome-note p{color:var(--muted);margin-top:4px;font-size:.875rem}.welcome-note>button{flex-shrink:0}.daily-card{background:var(--paper);box-shadow:var(--shadow);border-radius:24px;align-items:center;gap:20px;padding:28px 24px;display:flex;position:relative;overflow:hidden}.daily-content{flex:1;min-width:0}.daily-card h2{letter-spacing:-.035em;max-width:15ch;margin-bottom:12px;font-size:clamp(1.5rem,4vw,2rem);line-height:1.25}.daily-card p{color:var(--muted);max-width:40ch;margin-bottom:24px;font-size:.9375rem}.daily-caption{color:var(--muted);margin-top:12px;font-size:.75rem;display:block}.goal-ring{--progress:0deg;background:conic-gradient(var(--accent) var(--progress), var(--subtle) 0);border-radius:50%;flex-shrink:0;width:144px;height:144px;padding:9px;display:none;transform:rotate(0)}.goal-ring>div{background:var(--paper);border-radius:50%;flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;display:flex}.goal-ring strong{letter-spacing:-.05em;font-size:2.4rem;line-height:1.1}.goal-ring strong span{color:var(--muted);letter-spacing:0;font-size:1.1rem;font-weight:450}.goal-ring small{color:var(--muted);margin-top:8px}.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.stat{text-align:start;background:var(--paper);min-width:0;box-shadow:var(--shadow);border:1px solid #0000;border-radius:16px;flex-direction:column;align-items:flex-start;gap:6px;padding:20px;display:flex;position:relative}.stat>span{max-width:100%;font-size:.8125rem;line-height:1.5}.stat>strong{letter-spacing:-.035em;font-size:1.75rem;font-weight:650;line-height:1.25}.stat small{color:var(--muted)}.stat-chevron{color:var(--muted);position:absolute;inset-block-start:20px;inset-inline-end:14px}button.stat{padding-inline-end:32px}.home-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.home-stats .stat{padding:16px 12px}.home-stats .stat>strong{font-size:1.375rem}.home-stats .stat>span{font-size:.75rem}.home-stats .stat small{font-size:.6875rem}.home-stats .stat-chevron{display:none}.panel{background:var(--paper);border-radius:var(--radius);box-shadow:var(--shadow);min-width:0;padding:24px}.panel>.section-heading{margin-block-end:20px}.panel>p+*{margin-top:16px}.panel>h3{margin-block:20px 8px}.home-grid,.insights-grid{grid-template-columns:minmax(0,1fr);gap:24px;display:grid}.plan-list{padding:0;list-style:none}.plan-list li+li{border-top:1px solid var(--line)}.plan-list button{text-align:start;background:0 0;align-items:center;gap:12px;width:100%;min-height:76px;padding:18px 0;display:flex}.plan-list li:first-child button{padding-top:0}.plan-list li:last-child button{padding-bottom:0}.plan-list button>span:nth-child(2){flex:1;min-width:0}.plan-list strong{font-size:.9375rem;display:block}.plan-list small{color:var(--muted);margin-top:3px;font-weight:400;display:block}.step-symbol{background:var(--subtle);color:var(--muted);border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;display:flex}.sentence-preview{background:var(--tint);border-radius:var(--radius);flex-direction:column;justify-content:center;gap:14px;padding:24px;display:flex}.preview-quote{letter-spacing:-.025em;font-family:Georgia,Times New Roman,serif;font-size:1.75rem;line-height:1.55}.preview-quote u{-webkit-text-decoration-color:var(--accent);text-decoration-color:var(--accent);text-underline-offset:6px}.sentence-preview>.section-heading{margin-top:8px;font-size:.875rem}.add-strip,.starter-banner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;padding:24px 0;display:flex}.add-strip p,.starter-banner p{color:var(--muted);margin-top:6px;font-size:.875rem}.backup-reminder{border:1px solid var(--line);border-radius:14px;align-items:flex-start;gap:12px;padding:18px;font-size:.8125rem;display:flex}.backup-reminder svg,.backup-reminder p{color:var(--muted);margin-top:4px}.backup-reminder a{min-height:44px;color:var(--accent);align-items:center;margin-inline-start:auto;display:flex}label{flex-direction:column;gap:8px;min-width:0;font-size:.875rem;font-weight:550;display:flex}input:not([type=checkbox]),textarea,select{background:var(--paper);border:1px solid var(--input-line);color:var(--ink);border-radius:10px;min-height:48px;padding:12px;line-height:1.45}input::placeholder,textarea::placeholder{color:var(--muted);opacity:1}textarea{min-height:90px}input[type=checkbox]{width:22px;height:22px;accent-color:var(--accent);flex-shrink:0;margin:0}.check-label{flex-direction:row;align-items:center;gap:12px;min-height:44px;font-weight:450}.form-grid{grid-template-columns:minmax(0,1fr);gap:20px;display:grid}.setting-row{border-bottom:1px solid var(--line);flex-direction:row;justify-content:space-between;align-items:center;gap:24px;min-height:72px;padding-block:16px;display:flex}.setting-row:last-child{border-bottom:0;padding-bottom:0}.setting-row strong{font-size:.9375rem}.setting-row small{max-width:62ch;color:var(--muted);margin-top:4px;font-weight:400;display:block}.setting-row input[role=switch]{appearance:none;border:1px solid var(--input-line);background:var(--subtle);cursor:pointer;border-radius:20px;width:48px;min-width:48px;height:28px;position:relative}.setting-row input[role=switch]:before{content:"";background:var(--muted);border-radius:50%;width:20px;height:20px;position:absolute;inset-block-start:3px;inset-inline-start:3px}.setting-row input[role=switch]:checked{background:var(--accent-fill);border-color:var(--accent-fill)}.setting-row input[role=switch]:checked:before{background:var(--on-accent);inset-inline-start:23px}.setting-row:has(input[role=switch]){cursor:pointer}details{border-top:1px solid var(--line);margin-top:16px;padding-top:14px;font-size:.875rem}summary{cursor:pointer;min-height:44px;color:var(--muted);align-content:center;font-weight:550;line-height:1.5;display:list-item}details[open]>summary{color:var(--ink);margin-bottom:12px}details .stack{gap:20px}details p+p{margin-top:12px}fieldset{border:1px solid var(--line);border-radius:12px;padding:16px}legend{padding-inline:6px;font-size:.875rem;font-weight:600}.examples-fieldset{border:none;flex-direction:column;gap:16px;padding:0;display:flex}.examples-fieldset legend{margin-bottom:8px;padding:0}.examples-fieldset>p{font-size:.8125rem}.example-editor{background:var(--bg);border-radius:12px;padding:18px}.suggestions{background:var(--tint);border-radius:12px;padding:16px;font-size:.875rem}.suggestions p{margin-bottom:12px}.suggestions button{margin:4px 8px 0 0}.error{border-left:3px solid var(--danger);color:var(--danger);background:var(--danger-tint);border-radius:0 8px 8px 0;padding:14px 16px;font-size:.875rem}.footnote{color:var(--muted);margin-top:12px;font-size:.8125rem;line-height:1.6}.notice{background:var(--tint);border-radius:14px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding:18px;display:flex}.notice p{font-size:.875rem}.update-notice{margin-bottom:24px}.privacy-line{align-items:center;gap:10px;display:flex}.backup-actions{flex-wrap:wrap;gap:12px;margin-top:20px;display:flex}.backup-actions>*{flex:220px}.audio-status{color:var(--muted);min-height:18px;font-size:.75rem}.dialog{border:1px solid var(--line);background:var(--paper);color:var(--ink);overscroll-behavior:contain;border-radius:24px;width:min(100% - 24px,560px);max-height:90dvh;margin:auto;padding:24px;overflow-y:auto;box-shadow:0 24px 80px #0003}.dialog.wide{width:min(100% - 24px,760px);max-width:760px}.dialog::backdrop{background:#0c132c66}.dialog-header{justify-content:space-between;align-items:center;gap:20px;margin-bottom:24px;display:flex}.dialog-header h2{font-size:1.375rem}.dialog-actions{flex-wrap:wrap;justify-content:flex-end;gap:12px;padding-top:12px;display:flex}.toast{background:var(--ink);width:fit-content;max-width:calc(100% - 40px);color:var(--paper);z-index:80;border-radius:14px;align-items:center;gap:16px;margin-inline:auto;padding:14px 18px;font-size:.875rem;display:none;position:fixed;inset-block-end:calc(88px + env(safe-area-inset-bottom));inset-inline:20px;box-shadow:0 8px 30px #0002}.toast.shown{display:flex}.toast button{color:inherit;white-space:nowrap;background:0 0;flex-shrink:0;min-width:44px;min-height:44px;padding:8px;text-decoration:underline}.empty{background:var(--paper);border-radius:var(--radius);text-align:center;flex-direction:column;align-items:center;gap:16px;min-width:0;padding:36px 24px;display:flex}.empty p{color:var(--muted);max-width:46ch;font-size:.9375rem}.empty-mark{color:var(--accent);background:var(--tint);border-radius:18px;justify-content:center;align-items:center;width:64px;height:64px;font-family:Georgia,serif;font-size:1.75rem;display:flex}.search-box{border:1px solid var(--input-line);background:var(--paper);color:var(--muted);border-radius:12px;flex-direction:row;flex:1;align-items:center;gap:10px;padding-inline:14px;display:flex}.search-box input{background:0 0;border:0;padding-inline:0}.library-tools{flex-wrap:wrap;gap:12px;display:flex}.library-tools>label{flex:220px}.filter-chips{flex-wrap:wrap;gap:8px;display:flex}.filter-chips button{border:1px solid var(--line);background:var(--paper);color:var(--muted);border-radius:10px;min-height:44px;padding:10px 14px;font-size:.8125rem}.filter-chips button[aria-pressed=true]{color:var(--accent);background:var(--tint);border-color:var(--accent)}.word-list{background:var(--paper);border-radius:var(--radius);box-shadow:var(--shadow);padding:0;list-style:none;overflow:hidden}.word-list li+li{border-top:1px solid var(--line)}.word-row{text-align:start;background:0 0;align-items:center;gap:16px;width:100%;min-width:0;padding:20px;display:flex}.word-initial{background:var(--subtle);width:44px;height:44px;color:var(--muted);border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;font-family:Georgia,serif;font-size:1.5rem;display:flex}.word-main{flex-direction:column;flex:1;gap:3px;min-width:0;display:flex}.word-main strong{flex-wrap:wrap;align-items:center;gap:8px;font-size:1.0625rem;display:flex}.word-main>span{color:var(--muted);font-size:.875rem;font-weight:400}.word-main small{color:var(--muted);margin-top:4px;font-size:.8125rem;font-weight:400;display:block}.word-meta{align-items:center;gap:12px;display:flex}.badge{background:var(--subtle);color:var(--muted);border-radius:6px;align-self:flex-start;gap:4px;padding:5px 8px;font-size:.6875rem;font-weight:600;line-height:1.4;display:inline-flex}.pagination{justify-content:center;align-items:center;gap:16px;font-size:.875rem;display:flex}.starter-banner{border-top:1px solid var(--line)}.starter-list{overscroll-behavior:contain;border:1px solid var(--line);border-radius:12px;max-height:48dvh;overflow-y:auto}.starter-row{border-bottom:1px solid var(--line);flex-direction:row;align-items:center;gap:14px;padding:16px;display:flex}.starter-row>span:nth-child(2){flex-direction:column;flex:1;gap:3px;min-width:0;display:flex}.starter-row span span,.starter-row small{color:var(--muted);font-weight:400}.starter-row>.badge{align-self:center}.segmented{background:var(--subtle);border-radius:12px;gap:4px;padding:4px;display:flex}.segmented button{min-height:44px;color:var(--muted);background:0 0;border-radius:9px;flex:1;padding:8px;font-size:.8125rem}.segmented button[aria-pressed=true]{background:var(--paper);color:var(--ink);box-shadow:0 1px 4px #0001}.range{width:min(100%,380px)}.mode-grid{grid-template-columns:minmax(0,1fr);gap:12px;display:grid}.mode{background:var(--bg);text-align:start;border:1px solid #0000;border-radius:12px;flex-direction:column;gap:6px;min-width:0;padding:18px;display:flex}.mode.selected{background:var(--tint);border-color:var(--accent);color:var(--accent)}.mode small{color:var(--muted);font-weight:400}.study-ready{background:var(--paper);border-radius:var(--radius);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:24px;padding:24px;display:flex}.study-ready p{color:var(--muted);margin-top:8px;font-size:.875rem}.study-page{max-width:800px;margin-inline:auto}.session-progress{color:var(--muted);align-items:center;gap:16px;font-size:.8125rem;display:flex}progress{appearance:none;background:var(--subtle);border:0;border-radius:10px;flex:1;width:100%;height:5px;overflow:hidden}progress::-webkit-progress-bar{background:var(--subtle)}progress::-webkit-progress-value{background:var(--accent);border-radius:10px}progress::-moz-progress-bar{background:var(--accent)}.session-progress>span{white-space:nowrap}.flashcard{background:var(--paper);box-shadow:var(--shadow);border-radius:24px;min-width:0;padding:24px}.card-top{justify-content:space-between;align-items:center;gap:12px;display:flex}.card-top .badge{align-self:center}.card-top .toolbar{gap:4px}.card-prompt{flex-direction:column;align-items:flex-start;gap:16px;padding-block:32px 20px;display:flex}.sentence{letter-spacing:-.025em;max-width:26ch;font-family:Georgia,Times New Roman,serif;font-size:clamp(1.75rem,6vw,2.75rem);line-height:1.6}.target-word{min-width:44px;min-height:44px;color:var(--accent);font:inherit;text-underline-offset:6px;white-space:normal;background:0 0;margin:0 -2px;padding:0 2px;text-decoration:underline;text-decoration-thickness:2px;display:inline}.translation-prompt{font-family:inherit;font-size:1.5rem;font-weight:550;line-height:1.5}.prompt-help{color:var(--muted);font-size:.875rem}.recall-area{border-top:1px solid var(--line);gap:16px;padding-top:24px}.prediction{flex-wrap:wrap;gap:8px;display:flex}.prediction button{flex:100px;padding-inline:10px;font-size:.8125rem}.prediction button[aria-pressed=true]{border-color:var(--accent);background:var(--tint);color:var(--accent)}.translation-toggle{text-underline-offset:4px;color:var(--muted);background:0 0;min-height:44px;margin-top:8px;padding:10px 0;font-size:.8125rem;text-decoration:underline;display:block}.translation-text{color:var(--muted);padding:8px 0 20px;font-size:.9375rem}.hint-note{color:var(--muted);background:var(--subtle);border-radius:8px;padding:12px;font-size:.8125rem}.answer-panel{border-top:1px solid var(--line);margin-top:12px;padding:24px 0}.answer-panel h2{font-size:1.5rem}.answer-panel .section-heading p{margin-top:6px;font-size:1.125rem}.answer-panel>p{margin-top:10px}.collocation{background:var(--tint);border-radius:12px;flex-direction:column;gap:8px;margin-top:20px;padding:16px 18px;display:flex}.collocation span{color:var(--muted);font-size:.8125rem}.collocation strong{font-size:1.0625rem}.collocation small{color:var(--muted)}.feedback{background:var(--success-tint);color:var(--success);border-radius:10px;flex-wrap:wrap;align-items:flex-start;gap:8px;padding:14px;font-size:.875rem;display:flex;margin-top:20px!important}.feedback.incorrect{color:var(--danger);background:var(--danger-tint)}.feedback svg{margin-top:2px}.rating-area{border-top:1px solid var(--line);padding-top:20px}.rating-area>p{font-size:.875rem}.rating-area>small{margin-top:8px;display:block}.ratings{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:18px;display:grid}.rating{background:var(--subtle);border:1px solid #0000;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:4px;min-height:68px;padding:12px 8px;display:flex}.rating strong{font-size:.875rem}.rating small{color:var(--muted);font-weight:400}.rating-1{color:var(--danger);background:var(--danger-tint)}.rating-3{color:var(--accent);background:var(--tint)}.card-bottom{border-top:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-top:20px;padding-top:12px;font-size:.6875rem;display:flex}.card-bottom .text-button{font-size:.75rem}.undo-study{align-self:center}.listening{text-align:center;flex-direction:column;align-self:center;align-items:center;gap:20px;padding:16px;display:flex}.listen-button{background:var(--tint);width:80px;height:80px;color:var(--accent);border-radius:50%;justify-content:center;align-items:center;display:flex}.listening p{max-width:30ch;color:var(--muted)}.detail-list>div{border-bottom:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;gap:24px;padding:12px 0;display:flex}.detail-list>div:last-child{border:0}.detail-list dt{color:var(--muted);font-size:.875rem}.detail-list dd{text-align:end;min-width:0;max-width:65%;font-size:.875rem}.example-detail p:first-child{font-family:Georgia,serif;font-size:1.25rem;line-height:1.6}.example-detail p+p{margin-top:8px;font-size:.875rem}.memory-grid{grid-template-columns:minmax(0,1fr);gap:24px;margin-top:20px;display:grid}.memory-card{background:var(--bg);border-radius:12px;padding:18px}.memory-card h3{margin-bottom:12px}.memory-card .detail-list>div{gap:8px}.history-list{overscroll-behavior:contain;max-height:700px;overflow-y:auto}.history-list details{border-top:0;border-bottom:1px solid var(--line);margin-top:0;padding:12px 0}.history-list summary{flex-wrap:wrap;justify-content:space-between;gap:8px;display:flex}.history-list summary:after{content:"⌄";color:var(--muted)}.record-row{text-align:start;background:0 0;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;width:100%;min-height:64px;padding:16px;font-size:.875rem;display:flex}.record-row>span{color:var(--muted);font-size:.8125rem}.metric-list>div{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:16px;padding:10px 0;display:flex}.metric-list dt{color:var(--muted);max-width:60%;font-size:.875rem}.metric-list dd{text-align:end;font-size:1rem;font-weight:600}.metric-list dd small{color:var(--muted);font-weight:400;display:block}.metric-list button{text-align:end;background:0 0;border-radius:8px;min-width:44px;min-height:44px;padding:8px}.distribution{flex-direction:column;gap:16px;display:flex}.distribution-row{text-align:start;background:0 0;align-items:center;gap:12px;width:100%;min-height:44px;padding:0;font-size:.875rem;display:flex}.distribution-row>span:first-child{flex-shrink:0;width:82px}.distribution-track{background:var(--subtle);border-radius:8px;flex:1;height:10px;overflow:hidden}.distribution-track>span{background:var(--accent);border-radius:8px;height:100%;display:block}.dist-1 .distribution-track>span{background:var(--danger)}.dist-2 .distribution-track>span{background:var(--muted)}.dist-4 .distribution-track>span{background:var(--success)}.distribution-row strong{text-align:end;min-width:24px}.compact{gap:8px}.compact .stat{box-shadow:none;background:var(--bg);padding:16px}.compact .stat strong{font-size:1.25rem}.chart-scroll{overscroll-behavior:contain;margin-top:24px;padding-bottom:8px;overflow-x:auto}.bar-chart{border-bottom:1px solid var(--line);align-items:stretch;gap:4px;height:160px;display:flex}.bar-column{min-width:44px;color:var(--muted);background:0 0;flex-direction:column;flex:1;align-items:center;gap:8px;padding:0;font-weight:400;display:flex}.bar-space{justify-content:center;align-items:flex-end;width:100%;height:130px;display:flex}.bar{background:var(--accent);border-radius:4px 4px 0 0;width:60%;max-width:32px;min-height:1px}.bar-column small{font-size:.625rem}.chart-caption{color:var(--muted);align-items:center;gap:8px;margin-top:12px;font-size:.75rem;display:flex}.trend-chart{color:var(--accent);margin-top:24px}.trend-chart svg{width:100%;height:140px}.heatmap{grid-template-columns:repeat(auto-fit,minmax(44px,1fr));gap:4px;margin-top:20px;display:grid}.heat-cell{background:var(--subtle);border-radius:6px;flex-direction:column;justify-content:center;align-items:center;gap:2px;min-width:0;min-height:44px;padding:4px 0;display:flex}.heat-cell small{color:var(--muted);font-size:.5625rem;font-weight:400}.heat-cell strong{font-size:.75rem;font-weight:550}.heat-1,.heat-2{background:var(--tint);border:1px solid var(--accent)}.heat-3{background:var(--accent);color:var(--on-accent)}.heat-3 small{color:var(--on-accent)}.mode-performance{flex-direction:column;display:flex}.mode-performance-row{text-align:start;border-bottom:1px solid var(--line);background:0 0;grid-template-columns:minmax(0,1fr) auto;gap:6px 12px;width:100%;padding:14px 0;display:grid}.mode-performance-row strong{font-size:.875rem}.mode-performance-row span{color:var(--muted);font-size:.8125rem}.mode-performance-row small{color:var(--muted);grid-column:1;font-weight:400}.mode-performance-row svg{color:var(--muted);grid-area:2/2;justify-self:end}.ranking{padding:0;list-style:none}.ranking li+li{border-top:1px solid var(--line)}.ranking button{text-align:start;background:0 0;align-items:center;gap:16px;width:100%;min-height:68px;padding:16px 0;display:flex}.rank-number{color:var(--muted);min-width:20px;font-size:.8125rem}.ranking button>span:nth-child(2){flex:1;min-width:0}.ranking small{color:var(--muted);margin-top:2px;font-weight:400;display:block}.ranking button>strong{text-align:end;max-width:35%;font-size:.8125rem}.forecast-list>div{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:12px 0;font-size:.875rem;display:flex}.table-scroll{overscroll-behavior:contain;overflow-x:auto}table{text-align:start;width:100%;font-size:.8125rem}th,td{border-bottom:1px solid var(--line);text-align:start;padding:12px}caption{text-align:start;color:var(--muted);padding-block:12px}.loading,.fatal{max-width:600px;margin:10dvh auto;padding:24px}.loading p,.fatal p{margin-block:20px}.skeleton{background:var(--subtle);border-radius:20px;height:140px;margin-top:24px}.skeleton.short{width:60%;height:80px}@media (hover:hover) and (pointer:fine){.secondary:hover,.icon-button:hover,.word-row:hover,.plan-list button:hover,.metric-list button:hover,.mode-performance-row:hover,.record-row:hover,.ranking button:hover{background:var(--subtle)}.primary:hover{filter:brightness(.95)}.text-button:hover{text-decoration:underline}.sidebar a:hover{background:var(--subtle)}}@media (prefers-reduced-motion:no-preference){html:not([data-motion=off]) .primary,html:not([data-motion=off]) .secondary,html:not([data-motion=off]) .icon-button,html:not([data-motion=off]) .rating{transition:transform .15s ease-out}html:not([data-motion=off]) button:not(:disabled):active{transform:scale(.96)}}@media (forced-colors:active){.stat,.panel,.daily-card,.mode,.flashcard,.heat-cell,.bar,.goal-ring{border:1px solid canvastext}.bar,.distribution-track>span{background:highlight}}@media (prefers-contrast:more){:root{--muted:#3b4453;--input-line:#465161;--line:#8a94a3}:root[data-theme=dark]{--muted:#cbd6e9;--input-line:#bdc9dc;--line:#7b8aa0}}}@layer responsive{@media (width>=400px){.daily-card{padding:32px}.goal-ring{width:104px;height:104px;padding:7px;display:flex}.goal-ring strong{font-size:1.875rem}.goal-ring strong span{font-size:.875rem}.goal-ring small{margin-top:4px;font-size:.625rem}.home-stats .stat{padding:20px 16px}.heatmap{gap:6px}}@media (width>=600px){main{padding:28px 32px calc(120px + env(safe-area-inset-bottom))}.app-header{padding-inline:32px}.daily-card{padding:40px}.daily-card h2{max-width:20ch;font-size:2rem}.goal-ring{width:144px;height:144px;padding:9px}.goal-ring strong{font-size:2.5rem}.goal-ring strong span{font-size:1.125rem}.goal-ring small{font-size:.8125rem}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.form-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.mode-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.ratings{grid-template-columns:repeat(4,minmax(0,1fr))}.flashcard{padding:32px 40px}.stats-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.home-stats .stat>strong{font-size:1.75rem}.home-stats .stat>span,.home-stats .stat small{font-size:.8125rem}.home-stats .stat-chevron{display:block}.home-stats .stat{padding:24px}.heat-cell{min-height:52px}.heat-cell small{font-size:.6875rem}.heat-cell strong{font-size:.875rem}.dialog{padding:32px}.memory-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width>=1000px){.app-shell{grid-template-columns:232px minmax(0,1fr);display:grid}.sidebar{background:var(--paper);border-right:1px solid var(--line);z-index:10;flex-direction:column;width:232px;padding:36px 24px 24px;display:flex;position:fixed;inset:0 auto 0 0}.sidebar>.wordmark{margin-left:12px;font-size:1.875rem}.sidebar-subtitle{color:var(--muted);margin-top:6px;margin-bottom:40px;padding-left:12px;font-size:.75rem}.sidebar nav{flex-direction:column;gap:8px;display:flex}.sidebar nav a,.sidebar-bottom>a{min-height:48px;color:var(--muted);border-radius:12px;align-items:center;gap:14px;padding:12px 14px;font-size:.9375rem;text-decoration:none;display:flex}.sidebar a[aria-current]{background:var(--tint);color:var(--accent);font-weight:650}.sidebar nav a[href=\#reviews]{margin-top:20px}.sidebar-bottom{margin-top:auto}.local-badge{color:var(--muted);align-items:center;gap:8px;margin:24px 12px;font-size:.6875rem;display:flex}.local-dot{background:var(--success);border-radius:50%;width:6px;height:6px}.workspace{grid-column:2}.bottom-nav,.mobile-wordmark{display:none}.desktop-breadcrumb{color:var(--muted);gap:12px;font-size:.8125rem;display:flex}.desktop-breadcrumb span{color:var(--input-line)}.app-header{min-height:80px;padding:20px 48px}.app-header .header-actions{margin-left:auto}main{padding:28px 48px 40px}.stack{gap:28px}.page-heading{padding-bottom:8px}.home-grid{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr)}.insights-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stats-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.stats-grid.home-stats{grid-template-columns:repeat(3,minmax(0,1fr))}.goal-ring{width:160px;height:160px}.daily-card{padding:40px}.daily-card h2{max-width:none}.daily-content{padding-right:32px}.daily-card p{max-width:44ch}.welcome-note{padding:20px 24px}.toast{inset-block-end:24px;inset-inline-start:252px}.panel{padding:28px}.app-footer{margin-top:48px}.memory-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (width<=359px){main,.app-header{padding-inline:16px}.daily-card,.flashcard,.panel{padding:20px}.home-stats{grid-template-columns:minmax(0,1fr)}.home-stats .stat{grid-template-columns:1fr auto;display:grid}.home-stats .stat small{grid-column:1/-1}.welcome-note{flex-wrap:wrap}.word-initial{display:none}.word-row{gap:10px;padding:16px}.word-meta,.card-top{gap:4px}.card-top .icon-button{width:40px;min-width:40px}.dialog{width:calc(100% - 16px);padding:20px 16px}.heatmap{gap:2px}.stat{padding:16px}.stat>strong{font-size:1.5rem}.detail-list dd{text-align:start;max-width:100%}.distribution-row>span:first-child{width:72px}}}