.button{padding:.75rem 1.5rem;border:none;border-radius:8px;font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s ease;font-family:inherit}.button:disabled{opacity:.5;cursor:not-allowed}.button--primary{background:var(--color-accent);color:#fff}.button--primary:hover:not(:disabled){background:var(--color-accent-strong)}.button--secondary{background:#f9f9f9;color:#213547}.button--secondary:hover:not(:disabled){background:#e9e9e9}.button--outline{background:transparent;color:var(--color-accent-strong);border:2px solid var(--color-accent)}.button--outline:hover:not(:disabled){background:var(--color-accent);color:#fff}.button--small{padding:.5rem 1rem;font-size:.875rem}.button--medium{padding:.75rem 1.5rem;font-size:1rem}.button--large{padding:1rem 2rem;font-size:1.125rem}.button--full-width{width:100%}.access-gate{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--color-background);padding:1rem}.access-gate__card{width:100%;max-width:360px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;padding:2rem;display:flex;flex-direction:column;gap:1rem;text-align:center}.access-gate__title{font-size:1.5rem;color:var(--color-text);margin:0}.access-gate__subtitle{color:var(--color-text-muted);margin:0 0 .5rem;font-size:.95rem}.access-gate__input{padding:.75rem 1rem;border-radius:8px;border:1px solid var(--color-border);background:var(--color-surface-raised);color:var(--color-text);font-size:1rem;text-align:center;letter-spacing:.05em}.access-gate__input:focus{outline:none;border-color:var(--color-accent)}.access-gate__error{color:var(--color-danger);font-size:.875rem;margin:-.5rem 0 0}.image-upload{width:100%}.image-upload__dropzone{border:2px dashed var(--color-border);border-radius:12px;padding:.5rem;text-align:center;cursor:pointer;transition:all .3s ease;background:var(--color-surface)}.image-upload__dropzone:hover{border-color:var(--color-text-subtle);background:var(--color-surface-raised)}.image-upload__dropzone--dragging{border-style:solid;border-color:var(--color-accent);background:var(--color-surface-raised);transform:scale(1.02)}.image-upload__icon{font-size:3rem;margin-bottom:1rem}.image-upload__files{display:grid;grid-template-columns:1fr;gap:.25rem;margin:0 auto;width:100%;max-width:720px;max-height:300px;overflow-y:auto}.image-upload__file{position:relative;aspect-ratio:16 / 9;overflow:hidden;border-radius:4px;background:#f1f1f1;border:1px solid #ddd;cursor:zoom-in}.image-upload__file:focus-visible{outline:3px solid var(--color-accent-light);outline-offset:2px}.image-upload__file img{width:100%;height:100%;object-fit:contain;display:block}.image-upload__file-hint{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.25rem;color:#fff;font-size:.85rem;font-weight:600;background:#0000008c;opacity:0;pointer-events:none;transition:opacity .2s ease}.image-upload__file-hint-icon{font-size:1.5rem}.image-upload__file:hover .image-upload__file-hint,.image-upload__file:focus-visible .image-upload__file-hint{opacity:1}.image-upload__remove{position:absolute;top:.25rem;right:.25rem;width:1.5rem;height:1.5rem;padding:0;border:0;border-radius:50%;color:#fff;background:#000000b3;cursor:pointer;line-height:1}.image-upload__text{font-size:1.1rem;color:#444;margin:.25rem 0}.image-upload__text--ready{color:var(--color-text);font-weight:600}.image-upload__hint{font-size:.9rem;color:#999;margin:.5rem 0}.image-upload__error{margin-top:1rem;padding:.75rem;background:#ff00001a;border:1px solid rgba(255,0,0,.3);border-radius:8px;color:#ff6b6b;font-size:.9rem}.image-upload__dialog-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:30;display:grid;place-items:center;padding:1rem;background:#000000a6}.image-upload__dialog{width:min(100%,420px);padding:1.5rem;border:1px solid var(--color-border);border-radius:10px;background:var(--color-surface-raised);color:var(--color-text);text-align:left;box-shadow:0 1rem 3rem #00000059}.image-upload__dialog h2{margin:0 0 .75rem;color:var(--color-accent-light);font-size:1.25rem}.image-upload__dialog p{margin:.5rem 0;color:var(--color-text-muted)}.image-upload__dialog-actions{display:flex;justify-content:flex-end;gap:.75rem;margin-top:1.25rem}.image-upload__viewer{position:fixed;top:0;right:0;bottom:0;left:0;z-index:20;display:flex;justify-content:center;align-items:flex-start;padding:0 1.5rem 1rem;background:#000000e6}.image-upload__viewer-content{position:relative;display:flex;flex-direction:column;align-items:center;width:100%;height:min(100%,900px)}.image-upload__viewer-middle{position:relative;flex:1 1 auto;min-height:0;width:100%;display:flex;align-items:stretch;justify-content:center}.image-upload__viewer-stage-wrapper{position:relative;width:calc(100% - 9rem);display:flex;align-items:flex-start;justify-content:center;overflow-x:hidden;overflow-y:auto}.image-upload__viewer-stage{position:relative;width:100%;max-height:100%;flex:0 0 auto;transform-origin:top center;transition:transform .2s ease}.image-upload__viewer-stage img,.image-upload__drawing-canvas{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:contain}.image-upload__drawing-canvas{pointer-events:none}.image-upload__drawing-canvas--active{pointer-events:auto;cursor:crosshair;touch-action:none}.image-upload__viewer-content img{max-width:100%}.image-upload__viewer-top-controls,.image-upload__viewer-controls{flex:0 0 auto;display:flex;flex-wrap:wrap;justify-content:center;gap:.5rem;width:max-content;max-width:calc(100% - 1rem);padding:.5rem;border:1px solid var(--color-border);border-radius:10px;background:#2b3138f5;box-shadow:0 .5rem 1.5rem #0000008c}.image-upload__viewer-top-controls{margin-bottom:.75rem}.image-upload__viewer-controls{margin-top:.75rem}.image-upload__viewer-arrow{position:absolute;top:50%;z-index:2;display:inline-flex;align-items:center;justify-content:center;width:3.5rem;height:5rem;padding:0;font-size:3.5rem;line-height:1;transform:translateY(-50%)}.image-upload__viewer-arrow--previous{left:.5rem}.image-upload__viewer-arrow--next{right:.5rem}.image-upload__zoom-level{display:inline-flex;align-items:center;min-width:3.5rem;justify-content:center;color:var(--color-text);font-weight:600}.image-upload__viewer-controls .button{font-size:1.75rem;line-height:1}.image-upload__viewer-close{position:absolute;top:0;right:0;z-index:3}.image-upload__viewer-close--icon{display:inline-flex;align-items:center;justify-content:center;min-width:3.25rem;min-height:3.25rem;padding:.25rem;font-size:2rem;line-height:1}.image-upload__actions{margin-top:1rem}.camera-capture{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000f2;z-index:1000;display:flex;flex-direction:column}.camera-capture__header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;border-bottom:1px solid rgba(255,255,255,.1)}.camera-capture__header h3{margin:0;color:#fff}.camera-capture__close{background:transparent;border:none;color:#fff;font-size:1.5rem;cursor:pointer;padding:.5rem;line-height:1}.camera-capture__close:hover{color:var(--color-accent-strong)}.camera-capture__content{flex:1;display:flex;align-items:center;justify-content:center;padding:1rem;overflow:hidden}.camera-capture__webcam,.camera-capture__preview{width:100%;max-width:800px;border-radius:12px;overflow:hidden}.camera-capture__webcam video,.camera-capture__preview img{width:100%;height:auto;display:block}.camera-capture__error{text-align:center;color:#fff}.camera-capture__error p{color:#ff6b6b;margin-bottom:1rem}.camera-capture__actions{padding:1.5rem;display:flex;gap:1rem;justify-content:center;border-top:1px solid rgba(255,255,255,.1)}@media (max-width: 768px){.camera-capture__actions{flex-direction:column}}.image-preview{width:100%;margin-top:2rem}.image-preview__title{color:#fff;margin-bottom:1rem;font-size:1.2rem}.image-preview__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem;margin-bottom:1.5rem}.image-preview__item{position:relative;border-radius:8px;overflow:hidden;background:#ffffff0d;aspect-ratio:4 / 3}.image-preview__item img{width:100%;height:100%;object-fit:cover;display:block}.image-preview__remove{position:absolute;top:.5rem;right:.5rem;background:#000000b3;border:none;color:#fff;width:28px;height:28px;border-radius:50%;cursor:pointer;font-size:1rem;display:flex;align-items:center;justify-content:center;transition:background .2s}.image-preview__remove:hover{background:#ff6b6b}.image-preview__actions{margin-top:1.5rem}@media (max-width: 768px){.image-preview__grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}}.loading{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;padding:2rem}.loading__spinner{border:3px solid var(--color-accent-wash);border-top:3px solid var(--color-accent);border-radius:50%;animation:spin 1s linear infinite}.loading__spinner--small{width:24px;height:24px;border-width:2px}.loading__spinner--medium{width:48px;height:48px;border-width:3px}.loading__spinner--large{width:64px;height:64px;border-width:4px}.loading__message{color:#ccc;font-size:1rem;margin:0;font-weight:500}.loading__submessage{color:#999;font-size:.85rem;margin:.5rem 0 0;font-style:italic}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.info-box{display:flex;gap:.75rem;padding:1rem;border-radius:8px;margin:1rem 0;font-size:.95rem;line-height:1.5}.info-box__icon{font-size:1.25rem;flex-shrink:0}.info-box__content{flex:1}.info-box--info{background:var(--color-accent-wash);border:1px solid var(--color-accent-border);color:#a5acff}.info-box--warning{background:#ffc1071a;border:1px solid rgba(255,193,7,.3);color:#ffd54f}.info-box--success{background:#4caf501a;border:1px solid rgba(76,175,80,.3);color:#81c784}.home{max-width:900px;margin:0 auto;padding:1rem 2rem;min-height:100vh}.home__header{text-align:center;margin-bottom:1rem;position:relative}.home__title{font-size:3rem;margin:0;background:linear-gradient(to right,var(--color-accent),var(--color-accent-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.home__subtitle{font-size:1.2rem;color:var(--color-text-muted);margin:.5rem 0 0}.home__service-label{display:inline-flex;align-items:center;gap:.45rem}.home__service-icon{display:inline-block;font-size:1.35rem;letter-spacing:0}.home__info{background:var(--color-accent-wash);border:2px dashed var(--color-accent-border);border-radius:12px;min-height:7rem;padding:1rem 2rem;margin:2rem 0;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;overflow:hidden}.home__info-item{font-size:1.1rem;margin:0;color:var(--color-text-muted);animation:info-step-in .45s ease both}.home__info-dots{display:flex;gap:.5rem;margin-top:1.25rem}.home__info-dot{width:.55rem;height:.55rem;padding:0;border:1px solid var(--color-text-subtle);border-radius:50%;background:transparent}.home__info-dot--active{border-color:var(--color-accent);background:var(--color-accent)}@keyframes info-step-in{0%{opacity:0;transform:translateY(.75rem)}to{opacity:1;transform:translateY(0)}}.home__error{background:#ff00001a;border:1px solid rgba(255,0,0,.3);border-radius:8px;padding:1rem;margin:1rem 0;color:#ff6b6b;text-align:center}.home__capture{margin-top:1rem}.home__mode-selector{display:flex;gap:1rem;margin-bottom:1rem;justify-content:center}.home__language-switcher{position:absolute;top:0;right:0;display:flex;align-items:center;gap:.5rem;color:var(--color-text-muted);font-size:.85rem}.home__language-switcher select{padding:.35rem .5rem;border:1px solid var(--color-border);border-radius:6px;color:var(--color-text);background:var(--color-surface-raised)}@media (max-width: 768px){.home{padding:1rem}.home__title{font-size:2rem}.home__subtitle{font-size:1rem}.home__mode-selector{flex-direction:column}}.cropped-figure{position:relative;display:block;width:100%;max-width:420px;margin:1rem auto;padding:0;border:1px solid var(--color-border);border-radius:10px;background:var(--color-surface-raised);cursor:zoom-in;overflow:hidden}.cropped-figure--loading{width:100%;max-width:420px;min-height:120px;margin:1rem auto;border-radius:10px;background:var(--color-surface-raised)}.cropped-figure__frame{overflow:hidden;position:relative}.cropped-figure__viewport{position:relative;overflow:hidden}.cropped-figure__source{position:absolute;top:0;left:0;max-width:none;pointer-events:none}.cropped-figure__zoom-hint{position:absolute;bottom:.5rem;right:.5rem;background:#0000008c;border-radius:6px;padding:.2rem .4rem;font-size:.875rem;line-height:1}.cropped-figure__modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000bf;display:flex;align-items:center;justify-content:center;z-index:1000;padding:2rem}.cropped-figure__modal{position:relative;width:min(90vw,900px);background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;padding:1rem}.cropped-figure__modal-frame{overflow:hidden;border-radius:8px}.cropped-figure__modal-controls{display:flex;justify-content:flex-end;gap:.5rem;margin-bottom:.75rem}.cropped-figure__modal-controls button{width:2.25rem;height:2.25rem;border-radius:8px;border:1px solid var(--color-border);background:var(--color-surface-raised);color:var(--color-text);font-size:1.1rem;cursor:pointer}.cropped-figure__modal-controls button:hover{border-color:var(--color-accent);color:var(--color-accent)}.cropped-figure__modal-close{margin-left:.75rem}.summary{max-width:900px;height:100%;box-sizing:border-box;margin:0 auto;padding:1rem 2rem;display:flex;flex-direction:column;overflow:hidden}.summary--empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem}.summary__header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;gap:1rem}.summary__header h1{margin:0;font-size:2rem}.summary__actions{display:flex;gap:1rem}.summary__page{flex:1;min-height:0;display:flex;flex-direction:column;background:#ffffff08;border-radius:12px;padding:2rem;margin-bottom:1rem}.summary__page-content{flex:1;min-height:0;overflow-y:auto}.summary__main h2{color:var(--color-accent-strong);margin-top:0}.summary__text{text-align:left}.summary__text p{line-height:1.8;margin:1rem 0;color:#ccc}.summary__text ul{margin:1rem 0;padding-left:1.5rem;color:#ccc}.summary__text li{line-height:1.8;margin-bottom:.4rem}.summary__text strong{color:var(--color-accent-strong)}.summary__formula{margin:1rem auto;padding:.75rem 1.25rem;border:1px solid var(--color-accent-border);border-radius:8px;background:var(--color-accent-wash);color:var(--color-text);font-family:Courier New,Courier,monospace;font-size:1.1rem;text-align:center;width:fit-content}.summary__table-wrapper{margin:1rem 0;overflow-x:auto}.summary__table{border-collapse:collapse;width:100%;min-width:320px}.summary__table th,.summary__table td{padding:.6rem .9rem;border:1px solid var(--color-border);text-align:left;color:#ccc}.summary__table th{color:var(--color-text);background:var(--color-surface-raised);cursor:pointer;-webkit-user-select:none;user-select:none;white-space:nowrap}.summary__table th:hover{background:var(--color-surface-muted)}.summary__table-sort-icon{color:var(--color-text-subtle);font-size:.75em}.summary__table tbody tr:nth-child(2n){background:#ffffff08}.key-point{display:flex;align-items:flex-start;box-sizing:border-box;gap:.75rem;padding:1rem;margin-bottom:.75rem;border-radius:8px;background:#ffffff0d}.key-point--high{border-left:3px solid #ff6b6b}.key-point--medium{border-left:3px solid #ffd93d}.key-point--low{border-left:3px solid #6bcf7f}.key-point__indicator{font-size:1.2rem;flex-shrink:0}.key-point__text{min-width:0;color:#ddd;line-height:1.6;text-align:left;overflow-wrap:anywhere}.key-points__legend{display:flex;gap:1.5rem;font-size:.85rem;color:#999;margin-top:1rem}.summary__pagination{display:flex;align-items:center;justify-content:center;gap:1rem;margin-top:1rem}.summary__pagination .button{display:inline-flex;align-items:center;justify-content:center;width:3rem;height:3rem;padding:0;font-size:2rem;line-height:1}.summary__quiz-cta{background:var(--color-accent-wash);border:1px solid var(--color-accent-border);border-radius:12px;padding:2rem;text-align:center}.summary__quiz-cta h3{margin-top:0;color:#a5acff}.summary__quiz-cta p{color:#999;margin-bottom:1.5rem}@media print{.summary{background:#fff!important;color:#000!important;padding:1rem}.summary__header{border-bottom:2px solid #000;padding-bottom:1rem}.summary__header h1{color:#000!important}.summary__actions,.summary__quiz-cta{display:none!important}.summary__page{background:#fff!important;border:1px solid #ddd}.summary__main h2,.summary__key-points h3,.summary__text,.summary__text p,.summary__text li,.summary__text strong,.summary__formula,.summary__table th,.summary__table td,.key-point__text,.key-points__legend{color:#000!important}.summary__formula{background:#f5f5f5!important;border:1px solid #999!important}.summary__table th,.summary__table td{border:1px solid #999!important}.summary__table th{background:#f0f0f0!important;cursor:default}.summary__table-sort-icon{display:none}.key-point{background:#fff!important;border:1px solid #ddd;page-break-inside:avoid}.key-point--high{border-left:4px solid #ff6b6b!important}.key-point--medium{border-left:4px solid #ffd93d!important}.key-point--low{border-left:4px solid #6bcf7f!important}.summary__page-content{page-break-inside:avoid}}@media (max-width: 768px){.summary{padding:1rem}.summary__header{flex-direction:column;align-items:flex-start}.summary__actions{width:100%}.summary__actions button{flex:1}.key-points__legend{flex-direction:column;gap:.5rem}}.printable-quiz{display:none}@media print{body *{visibility:hidden}.printable-quiz,.printable-quiz *{visibility:visible}.printable-quiz{display:block;position:absolute;left:0;top:0;width:100%;padding:20mm;font-family:Times New Roman,serif;color:#000;background:#fff}.printable-quiz__header{text-align:center;margin-bottom:20px;padding-bottom:15px;border-bottom:2px solid #000}.printable-quiz__header h1{margin:0 0 15px;font-size:24pt;color:#000}.printable-quiz__info{display:flex;gap:30px;justify-content:center;margin-top:15px}.printable-quiz__field{display:flex;align-items:center;gap:10px}.printable-quiz__field label{font-size:11pt;font-weight:700}.printable-quiz__line{width:150px;border-bottom:1px solid #000;height:20px}.printable-quiz__answer-key-badge{margin-top:10px;padding:10px 20px;background:#000;color:#fff;display:inline-block;font-size:14pt}.printable-quiz__instructions{margin:20px 0;padding:10px;background:#f0f0f0;border-left:4px solid #000}.printable-quiz__instructions p{margin:5px 0;font-size:11pt}.printable-quiz__questions{margin-top:20px}.printable-quiz__question{margin-bottom:25px;page-break-inside:avoid}.printable-quiz__question-header{display:flex;gap:10px;margin-bottom:10px;text-align:left}.printable-quiz__question-number{font-weight:700;font-size:12pt;min-width:30px}.printable-quiz__question-text{font-size:12pt;line-height:1.5;flex:1;text-align:left}.printable-quiz__options{margin-left:40px}.printable-quiz__option{display:grid;grid-template-columns:30px 25px 1fr;gap:5px;align-items:start;margin:8px 0;padding:5px}.printable-quiz__option--correct{background:#e8f5e9;border:2px solid #4caf50;font-weight:700}.printable-quiz__option-letter{font-weight:700;text-align:left}.printable-quiz__checkbox{font-size:16pt;text-align:center}.printable-quiz__checkmark{font-size:16pt;text-align:center;color:#4caf50;font-weight:700}.printable-quiz__option-text{font-size:11pt;line-height:1.5;text-align:left}.printable-quiz__answer-space{margin:10px 0 0 40px}.printable-quiz__answer-line{border-bottom:1px solid #000;height:25px;margin-bottom:5px}.printable-quiz__explanation{margin:10px 0 0 40px;padding:10px;background:#fff3e0;border-left:3px solid #ff9800;font-size:10pt;font-style:italic}.printable-quiz__answer-summary{margin-top:30px;padding:15px;border:2px solid #000;page-break-before:always}.printable-quiz__answer-summary h3{margin:0 0 15px;font-size:14pt}.printable-quiz__answer-item{margin:8px 0;font-size:11pt}.printable-quiz__footer{margin-top:30px;text-align:center;font-size:9pt;color:#666;border-top:1px solid #ccc;padding-top:10px}}.quiz{max-width:900px;height:100%;box-sizing:border-box;margin:0 auto;padding:1rem 2rem;display:flex;flex-direction:column;overflow:hidden}.quiz--empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem}.quiz__header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;flex-shrink:0;gap:1rem}.quiz__header h1{margin:0;font-size:2rem;flex:1}.quiz__actions{display:flex;gap:1rem}.quiz__progress{margin-bottom:1rem;flex-shrink:0}.quiz__progress-text{font-size:.9rem;color:#999;margin-bottom:.5rem}.quiz__progress-bar{height:8px;background:#ffffff1a;border-radius:4px;overflow:hidden}.quiz__progress-fill{height:100%;background:linear-gradient(to right,var(--color-accent),var(--color-accent-light));transition:width .3s ease}.quiz__question-container{position:relative;flex:1;min-height:0;display:flex;flex-direction:column;background:#ffffff08;border-radius:12px;padding:2rem 4.5rem}.quiz__side-navigation{position:absolute;top:50%;z-index:2;display:inline-flex;align-items:center;justify-content:center;width:3rem;height:4.5rem;padding:0;font-size:2.75rem;line-height:1;transform:translateY(-50%)}.quiz__side-navigation--previous{left:.5rem}.quiz__side-navigation--next{right:.5rem}.quiz__question{display:flex;align-items:flex-start;margin-bottom:1rem;flex-shrink:0}.quiz__question h2{color:#fff;font-size:1.5rem;margin:0 0 1rem;line-height:1.5;text-align:center;flex:1}.quiz__difficulty-icon{display:inline-block;flex-shrink:0;margin:.1rem .75rem 0 0;font-size:1.35rem;cursor:help}.quiz__options{display:flex;flex-direction:column;gap:1rem;margin-bottom:1rem;min-height:0;overflow-y:auto}.quiz__option{display:flex;align-items:center;padding:1.25rem;background:#ffffff0d;border:2px solid transparent;border-radius:8px;cursor:pointer;transition:all .2s ease}.quiz__option:hover{background:#ffffff14;border-color:var(--color-accent-border)}.quiz__option--selected{background:var(--color-accent-wash);border-color:var(--color-accent)}.quiz__option input[type=radio]{margin-right:1rem;width:20px;height:20px;cursor:pointer}.quiz__option-text{min-width:0;color:#ddd;font-size:1rem;line-height:1.5;flex:1;text-align:left;overflow-wrap:anywhere}.quiz__results{flex:1;min-height:0;overflow-y:auto;display:flex;flex-direction:column;gap:2rem}.quiz__score{text-align:center;padding:2rem;background:#ffffff08;border-radius:12px}.quiz__score-circle{width:150px;height:150px;margin:0 auto 1rem;border-radius:50%;background:var(--color-accent-wash);border:4px solid var(--color-accent);display:flex;align-items:center;justify-content:center}.quiz__score-percentage{font-size:3rem;font-weight:700;color:#fff}.quiz__score h2{margin:1rem 0;color:#fff}.quiz__score-message{font-size:1.2rem;margin:.5rem 0 0}.quiz__focused-review{background:var(--color-accent-wash);border:1px solid var(--color-accent-border);border-radius:12px;padding:2rem;margin-bottom:2rem;text-align:center}.quiz__focused-review h3{color:var(--color-accent-strong);margin-top:0;margin-bottom:.5rem}.quiz__focused-review-intro{color:var(--color-text-muted);margin-top:0;margin-bottom:1.5rem}.quiz__focused-review-error{color:var(--color-danger);margin-top:0;margin-bottom:1rem}.quiz__review{background:#ffffff08;border-radius:12px;padding:2rem}.quiz__review h3{color:var(--color-accent-strong);margin-top:0;margin-bottom:1.5rem}.quiz__review-item{padding:1.5rem;margin-bottom:1rem;border-radius:8px;border-left:4px solid}.quiz__review-item--correct{background:#4caf501a;border-left-color:#4caf50}.quiz__review-item--wrong{background:#f443361a;border-left-color:#f44336}.quiz__review-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.quiz__review-number{font-weight:700;color:#999}.quiz__review-status{padding:.25rem .75rem;border-radius:4px;font-size:.85rem;font-weight:700}.quiz__review-status--correct{background:#4caf5033;color:#81c784}.quiz__review-status--wrong{background:#f4433633;color:#e57373}.quiz__review-question{color:#fff;font-size:1.1rem;margin:0 0 1rem;font-weight:500}.quiz__review-answers{display:flex;flex-direction:column;gap:.5rem}.quiz__review-answer{color:#ddd;padding:.5rem 0}.quiz__review-answer--correct{color:#81c784}.quiz__review-explanation{margin-top:1rem;padding-top:1rem;border-top:1px solid rgba(255,255,255,.1);color:#aaa;font-style:italic}.quiz__results-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}@media print{.quiz__header,.quiz__actions,.quiz__navigation,.quiz__results-actions{display:none}.quiz__review-item{page-break-inside:avoid}}@media (max-width: 768px){.quiz{padding:.75rem 1rem}.quiz__header{flex-direction:column;align-items:flex-start;gap:1rem}.quiz__question h2{font-size:1.2rem}.quiz__question-container{padding:1rem 3.25rem}.quiz__side-navigation{width:2.5rem;height:3.5rem;font-size:2.25rem}.quiz__results-actions{flex-direction:column}.quiz__results-actions button{width:100%}}#root{max-width:1280px;width:100%;height:100vh;margin:0 auto;padding:0;text-align:center;background:var(--color-background);overflow:hidden}.app{height:100%;overflow:hidden}.logo{height:6em;padding:1.5em;will-change:filter;transition:filter .3s}.logo:hover{filter:drop-shadow(0 0 2em var(--color-accent))}.logo.react:hover{filter:drop-shadow(0 0 2em var(--color-accent-light))}@keyframes logo-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (prefers-reduced-motion: no-preference){a:nth-of-type(2) .logo{animation:logo-spin infinite 20s linear}}.card{padding:2em}.read-the-docs{color:#888}:root{--color-background: #1f2328;--color-surface: #2b3138;--color-surface-raised: #343b44;--color-surface-muted: #414a54;--color-border: #59636e;--color-text: #f0f2f4;--color-text-muted: #b7c0c8;--color-text-subtle: #929ca5;--color-accent: #f97316;--color-accent-strong: #ea580c;--color-accent-light: #fb923c;--color-accent-wash: rgba(249, 115, 22, .12);--color-accent-border: rgba(249, 115, 22, .4);--color-danger: #f87171}:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:var(--color-text);background-color:var(--color-background);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:var(--color-accent-strong);text-decoration:inherit}a:hover{color:var(--color-accent-light)}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh;height:100vh;overflow:hidden;background:var(--color-background)}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:var(--color-surface);cursor:pointer;transition:border-color .25s}button:hover{border-color:var(--color-accent)}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:var(--color-text);background-color:var(--color-background)}a:hover{color:var(--color-accent-light)}button{background-color:var(--color-surface-raised)}}@media print{:root{color-scheme:light;color:#000!important;background-color:#fff!important}body{background-color:#fff!important;color:#000!important}*{color:#000!important;background-color:transparent!important}}