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.field[invalid]::part(input-field),.welcome-view .field[invalid]::part(input-field){border-color:var(--lumo-error-color)}.account-view .btn-green,.account-view .btn-blue,.password-change-view .btn-green,.welcome-view .btn-green,.welcome-view .btn-blue{min-height:44px;margin:0;border-radius:4px;font-weight:700}.account-view .btn-link,.welcome-view .btn-link{margin:0;background:transparent}.account-view .account-body .login-signin-btn{width:100%!important}.account-view .btn-google{width:100%;min-height:44px;margin:0;border:1px solid #D9D9D9;border-radius:4px;background:#fff;color:#000;font-weight:700;cursor:pointer}.account-or-divider{display:flex;align-items:center;width:100%;gap:12px;color:#6b7280}.account-or-divider:before,.account-or-divider:after{content:"";flex:1 1 0;border-top:1px solid 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(prefers-reduced-motion: no-preference) and (hover: hover) and (pointer: fine){vaadin-button:not([disabled]):hover,.btn-google:not(:disabled):hover,a.btn-blue:hover,a.btn-green:hover,.main-section:hover,.menu-repeat-exercise-layout:hover{filter:brightness(1.04)}.tree-item-label:hover{color:#3b82f6}}@media (prefers-reduced-motion: reduce){.arrow-icon{transition:none}vaadin-dialog-overlay::part(overlay),vaadin-dialog-overlay::part(backdrop),vaadin-context-menu-overlay::part(overlay),vaadin-notification-card{animation:none!important;transition:none!important}}html[theme~=dark]{color-scheme:dark;--lumo-base-color: #1f2937;--lumo-body-text-color: #f3f4f6;--lumo-primary-text-color: #60a5fa;--lumo-primary-color: #3b82f6;--lumo-secondary-text-color: #d1d5db;--lumo-tertiary-text-color: #9ca3af;--lumo-contrast-5pct: rgba(255, 255, 255, .05);--lumo-contrast-10pct: rgba(255, 255, 255, .1);--lumo-contrast-20pct: rgba(255, 255, 255, .2);--lumo-contrast-30pct: rgba(255, 255, 255, .3);--lumo-contrast-50pct: rgba(255, 255, 255, .5);--lumo-contrast-90pct: rgba(255, 255, 255, .9)}html[theme~=dark] body,html[theme~=dark] .main-view,html[theme~=dark] .account-view,html[theme~=dark] .welcome-view{background-color:#111827;color:#f3f4f6}html[theme~=dark] .main-header .daily-streak-text{color:#49c592}html[theme~=dark] .main-header-title,html[theme~=dark] .header-more-btn,html[theme~=dark] .theme-toggle-btn{color:#f3f4f6}html[theme~=dark] .welcome-view .btn-link,html[theme~=dark] .account-view .btn-link,html[theme~=dark] .password-change-view .btn-link{background:transparent;color:#f3f4f6}.theme-toggle-btn{box-sizing:border-box;flex:0 0 36px;width:36px;min-width:36px;height:36px;margin:0;padding:0;background:transparent;color:#111827;cursor:pointer}html[theme~=dark] .account-view .field,html[theme~=dark] .welcome-view .field,html[theme~=dark] .password-change-view .field{--vaadin-input-field-background: #374151;color:#f3f4f6}html[theme~=dark] .account-view .field::part(input-field),html[theme~=dark] .welcome-view .field::part(input-field),html[theme~=dark] .password-change-view .field::part(input-field),html[theme~=dark] .account-view .btn-google{border-color:#4b5563;background:#374151;color:#f3f4f6}html[theme~=dark] .account-or-divider{color:#9ca3af}html[theme~=dark] .account-or-divider:before,html[theme~=dark] .account-or-divider:after{border-color:#4b5563}html[theme~=dark] .welcome-signup-section{background:#18352f}html[theme~=dark] .welcome-cookie-banner{background:#1f2937!important;color:#f3f4f6}html[theme~=dark] .buttons-layout-repeat-exercise,html[theme~=dark] .buttons-layout,html[theme~=dark] .buttons-layout-nested,html[theme~=dark] .buttons-layout-nested-nested,html[theme~=dark] .metrics-btn,html[theme~=dark] .arrow-btn{border-color:#4b5563;background-color:#374151;color:#f3f4f6}html[theme~=dark] .menu-dialog-root,html[theme~=dark] vaadin-dialog-overlay[theme~=exercise]::part(content){background:#111827;color:#f3f4f6}html[theme~=dark] .menu-dialog-header-caption1,html[theme~=dark] .menu-dialog-header-caption3,html[theme~=dark] .menu-dialog-topic-caption1,html[theme~=dark] .menu-dialog-question-text,html[theme~=dark] .menu-dialog-question-answer,html[theme~=dark] .menu-dialog-substantiation-text,html[theme~=dark] .menu-dialog-example-source,html[theme~=dark] .tree-item-label,html[theme~=dark] .exercise-selector-component-arrow-btn{color:#f3f4f6}html[theme~=dark] .exercise-selector-component-arrow-btn vaadin-icon{color:#f3f4f6;fill:#f3f4f6}html[theme~=dark] .tree-item .arrow-icon circle,html[theme~=dark] .tree-item .arrow-icon polyline{stroke:#f3f4f6;stroke-opacity:1}html[theme~=dark] vaadin-dialog-overlay[theme~=exercise]::part(backdrop){background-color:#111827!important}:root{--lumo-font-family: "Montserrat", sans-serif}