.ds-card{position:relative;overflow:hidden;background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--r);box-shadow:var(--shadow-sm);transition:border-color .16s ease,transform .16s ease}.ds-card:after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent-primary);transition:width .22s ease}.ds-card:hover{transform:translateY(-2px)}.ds-card:hover:after{width:100%}.ds-card-head{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-5);border-bottom:1px solid var(--border-color)}.ds-card-body{padding:var(--space-4) var(--space-5)}.ds-card-foot{display:flex;gap:var(--space-4);padding:var(--space-3) var(--space-5);border-top:1px solid var(--border-color)}.ds-info{border-left:3px solid var(--accent-primary);background:rgba(var(--accent-primary-rgb),.07);border-radius:0 var(--r-sm) var(--r-sm) 0;padding:var(--space-3) var(--space-4)}.ds-info-title{font-family:Fira Mono,monospace;font-size:.7rem;color:var(--accent-secondary);text-transform:lowercase;margin-bottom:5px}.ds-tag{font-family:Fira Mono,monospace;font-size:.72rem;color:var(--accent-secondary);background:var(--accent-light);border:1px solid var(--accent-primary);border-radius:var(--r-pill);padding:2px 9px}.ds-tag-muted{font-family:Fira Mono,monospace;font-size:.72rem;color:var(--text-tertiary);border:1px solid var(--border-hover);border-radius:var(--r-pill);padding:2px 9px;background:transparent}.ds-prog{height:5px;border-radius:var(--r-pill);background:var(--bg-tertiary);overflow:hidden}.ds-prog-fill{height:100%;background:var(--accent-primary);border-radius:var(--r-pill);transition:width .4s ease}.ds-check{width:22px;height:22px;border-radius:6px;border:2px solid var(--border-hover);display:grid;place-items:center;flex:0 0 auto;color:transparent;font-size:.8rem;cursor:pointer;transition:border-color .15s,background-color .15s}.ds-check:hover{border-color:var(--accent-primary)}.ds-check.done{background:var(--success);border-color:var(--success);color:#fff}.ds-check--sm{width:18px;height:18px;border-radius:5px;font-size:.62rem}.is-active{border-color:var(--accent-primary);background:var(--accent-light)}.is-done,.is-correct{border-color:var(--success);background:var(--success-bg)}.is-wrong{border-color:var(--error);background:var(--error-bg)}#custom-titlebar{-webkit-app-region:drag;height:32px;display:flex;align-items:center;position:fixed;top:0;left:0;right:0;z-index:100;background-color:var(--bg-primary);border-bottom:1px solid var(--border-color);transition:background-color .2s}#custom-titlebar.mac-style{padding-left:12px}#custom-titlebar.windows-style{padding-left:12px;justify-content:flex-end;flex-direction:row-reverse}.window-controls{-webkit-app-region:no-drag;display:flex;gap:8px}.traffic-light{width:12px;height:12px;border-radius:50%;cursor:pointer;transition:opacity 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.2s;position:relative}.nav-button:hover{background-color:var(--bg-tertiary);color:var(--text-primary)}.nav-button.active{background-color:var(--accent-light);color:var(--accent-primary)}.nav-button.active:before{content:"";position:absolute;left:-12px;width:3px;height:24px;background-color:var(--accent-primary);border-radius:0 3px 3px 0}.card{background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:12px;padding:1.5rem;transition:all .2s}.card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-md)}.card-interactive{cursor:pointer}.card-interactive:hover{transform:translateY(-2px)}.progress-bar{width:100%;height:8px;background-color:var(--bg-tertiary);border-radius:4px;overflow:hidden;margin:.5rem 0}.progress-fill{height:100%;background-color:var(--accent-primary);border-radius:4px;transition:width .5s ease-out}.badge{display:inline-block;padding:.25rem .75rem;border-radius:12px;font-size:.75rem;font-weight:600;background-color:var(--accent-light);color:var(--accent-primary)}.badge-success{background-color:var(--success-light);color:var(--success)}.modal-overlay{position:fixed;inset:0;background-color:#00000080;backdrop-filter:blur(4px);z-index:1000;display:flex;align-items:center;justify-content:center;animation:fadeIn .2s}.modal-content{background-color:var(--bg-primary);border:1px solid var(--border-color);border-radius:16px;padding:2rem;max-width:500px;width:90%;box-shadow:var(--shadow-lg);animation:slideIn .3s}.modal-header{margin-bottom:1.5rem}.modal-title{font-size:1.5rem;font-weight:600;margin-bottom:.5rem}.modal-actions{display:flex;gap:1rem;justify-content:flex-end;margin-top:1.5rem}.btn{padding:.75rem 1.5rem;border-radius:8px;font-weight:500;font-size:.875rem;transition:all .2s;display:inline-flex;align-items:center;gap:.5rem}.btn-primary{background-color:var(--accent-primary);color:#fff}.btn-primary:hover{background-color:var(--accent-hover)}.btn-secondary{background-color:var(--bg-tertiary);color:var(--text-primary)}.btn-secondary:hover{background-color:var(--border-hover)}.btn-ghost{background-color:transparent;color:var(--text-secondary)}.btn-ghost:hover{background-color:var(--bg-tertiary);color:var(--text-primary)}input[type=text],input[type=password],input[type=email],input[type=date],input[type=time],textarea,select{width:100%;padding:.75rem 1rem;border:1px solid var(--border-color);border-radius:8px;background-color:var(--bg-secondary);color:var(--text-primary);font-size:.875rem;font-family:inherit;transition:all .2s;cursor:text}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px var(--accent-light)}input:disabled,textarea:disabled,select:disabled{opacity:.5;cursor:not-allowed;background-color:var(--bg-tertiary)}textarea{resize:vertical;min-height:100px}.spinner{width:20px;height:20px;border:2px solid var(--border-color);border-top-color:var(--accent-primary);border-radius:50%;animation:spin 1s linear infinite}.checkbox{width:20px;height:20px;border:2px solid var(--border-color);border-radius:4px;display:flex;align-items:center;justify-content:center;transition:all .2s}.checkbox.checked{background-color:var(--accent-primary);border-color:var(--accent-primary);color:#fff}.planner-banner{background:linear-gradient(135deg,var(--accent-light) 0%,var(--bg-secondary) 100%);border:1px solid var(--border-color);border-radius:12px;padding:1rem 1.5rem;margin:0 auto 1.5rem;animation:slideDown .3s ease-out;box-sizing:border-box;max-width:900px}.planner-banner-content{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}@keyframes 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.2s;white-space:nowrap;font-size:.875rem}.planner-tab:hover{background-color:var(--bg-tertiary);color:var(--text-primary)}.planner-tab.active{background-color:var(--accent-light);color:var(--accent-primary);border-color:var(--accent-primary);font-weight:500}.planner-tab i{width:16px;height:16px;flex-shrink:0}.planner-day-card{padding:1rem;border-radius:12px;border:2px solid var(--border-color);background-color:var(--bg-secondary);cursor:pointer;transition:all .2s;text-align:center;min-height:120px;display:flex;flex-direction:column;justify-content:center}.planner-day-card:hover{border-color:var(--accent-primary);background-color:var(--bg-tertiary);transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.planner-day-card.selected{border-color:var(--accent-primary);background-color:var(--accent-light);box-shadow:0 0 0 3px var(--accent-light)}.planner-day-card.today{border-color:var(--accent-primary);border-width:3px}.planner-day-card.today:before{content:"";display:block;width:6px;height:6px;border-radius:50%;background-color:var(--accent-primary);margin:0 auto .5rem}.success-light{background-color:#dcfce7}@media(max-width:768px){.planner-banner-content{flex-direction:column;align-items:stretch}.planner-banner-content>div:last-child{justify-content:stretch}.planner-banner-content button{flex:1}}.home-page{padding:0 0 96px}.home-wrap{max-width:1000px;margin:0 auto;padding:44px 26px 0}.home-greeting-wrap{text-align:center;max-width:620px;margin:0 auto 32px}.home-greeting{font-size:2.05rem;font-weight:700;color:var(--text-primary);letter-spacing:-.02em;line-height:1.15}.home-subgreet{margin-top:10px;color:var(--text-tertiary);font-size:1.02rem}.home-eyebrow{display:block;font-family:Fira 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var(--border-hover);border-radius:var(--r-sm);padding:26px 20px;text-align:center}.subj-empty .note{color:var(--text-tertiary);font-size:.92rem;line-height:1.5}.subj-rows{display:flex;flex-direction:column}.subj-row{display:flex;align-items:center;gap:14px;width:100%;text-align:left;background:transparent;border:none;cursor:pointer;padding:13px 8px;border-top:1px solid var(--border-color);position:relative}.subj-row:first-child{border-top:none}.subj-row:before{content:"";position:absolute;left:-8px;top:0;bottom:0;width:2px;background:var(--accent-primary);transform:scaleY(0);transition:transform .16s}.subj-row:hover{background:var(--bg-secondary)}.subj-row:hover:before{transform:scaleY(1)}.sr-name{font-size:.96rem;font-weight:600;color:var(--text-primary);min-width:150px}.sr-code{font-family:Fira Mono,monospace;font-size:.74rem;color:var(--text-tertiary)}.subj-row .ds-prog{flex:1;min-width:60px}.sr-pct{font-family:Fira Mono,monospace;font-size:.8rem;color:var(--accent-secondary);min-width:34px;text-align:right}.subj-more{margin-top:12px;font-family:Fira Mono,monospace;font-size:.72rem;color:var(--text-tertiary)}.continue{width:100%;display:flex;align-items:center;gap:14px;text-align:left;cursor:pointer;background:var(--card-bg);border:1px solid var(--border-hover);border-radius:var(--r);padding:17px 20px;transition:border-color .16s}.continue:hover{border-color:var(--accent-primary)}.continue .c-text{flex:1;display:flex;flex-direction:column;gap:3px;min-width:0}.continue .c-label{font-family:Fira Mono,monospace;font-size:.68rem;color:var(--text-tertiary);text-transform:lowercase}.continue .c-main{font-weight:600;color:var(--text-primary);font-size:1.04rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.continue .c-go{color:var(--accent-secondary);font-size:1.2rem;flex:0 0 auto;transition:transform .16s}.continue:hover .c-go{transform:translate(4px)}.today-slot{border:1px dashed var(--border-hover);border-radius:var(--r);padding:24px 20px}.today-slot .home-eyebrow{margin-bottom:8px}.today-slot .note{color:var(--text-tertiary);font-size:.92rem;line-height:1.5}.home-papers{max-width:720px;margin:18px auto 0}.home-papers .home-eyebrow{margin-bottom:14px}.paper-rows{display:flex;flex-direction:column}.paper-row{display:flex;align-items:center;gap:12px;width:100%;text-align:left;background:transparent;border:none;cursor:pointer;padding:12px 8px;border-top:1px solid var(--border-color);position:relative}.paper-row:first-child{border-top:none}.paper-row:before{content:"";position:absolute;left:-8px;top:0;bottom:0;width:2px;background:var(--accent-primary);transform:scaleY(0);transition:transform 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li{position:relative;padding-left:15px;font-size:.9rem;line-height:1.5;color:var(--text-secondary)}.cl-objs li:before{content:"–";position:absolute;left:0;color:var(--text-tertiary)}.cl-syllabus-note{margin-top:14px}.cl-note-line{font-size:.86rem;color:var(--text-secondary);font-style:italic;line-height:1.5}.cl-note-area{border-top:1px solid var(--border-color);padding:11px 20px}.cl-add-note{font-family:Fira Mono,monospace;font-size:.78rem;color:var(--text-tertiary);background:transparent;border:none;cursor:pointer;padding:0;transition:color .15s}.cl-add-note:hover{color:var(--accent-secondary)}.cl-note{width:100%}.cl-note-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}.cl-note-label{font-family:Fira Mono,monospace;font-size:.7rem;color:var(--text-tertiary);text-transform:lowercase}.cl-note-del{background:transparent;border:none;color:var(--text-tertiary);cursor:pointer;padding:2px;line-height:0}.cl-note-del:hover{color:var(--error)}.cl-note-del 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2px}.cl-subject-code{font-family:Fira Mono,monospace;font-size:.74rem;color:var(--text-tertiary);margin:0}.cl-nav-label{display:block;font-family:Fira Mono,monospace;font-size:.66rem;color:var(--text-tertiary);text-transform:lowercase;letter-spacing:.04em;padding:14px 18px 6px}.cl-section-nav{flex:1;overflow-y:auto;padding:0 14px 14px;display:flex;flex-direction:column;gap:8px}.cl-section-card{display:block;width:100%;text-align:left;cursor:pointer;padding:12px 14px}.cl-section-card:after{content:none}.cl-section-card:hover{border-color:var(--accent-primary)}.cl-section-top{display:flex;align-items:center;gap:10px}.cl-section-info{flex:1;min-width:0}.cl-section-title{font-size:.92rem;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cl-section-card.is-active .cl-section-title{color:var(--accent-secondary)}.cl-section-meta{font-family:Fira 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var(--border-color);border-radius:var(--r-sm);font-size:.9rem;color:var(--text-primary)}.cl-search:focus{outline:none;border-color:var(--accent-primary)}.cl-search-clear{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:transparent;border:none;color:var(--text-tertiary);cursor:pointer;font-size:1.15rem;line-height:1;padding:0}.cl-search-clear:hover{color:var(--text-primary)}.cl-section-head{margin-bottom:22px}.cl-section-h1{font-size:1.7rem;font-weight:800;color:var(--text-primary);letter-spacing:-.02em;margin:6px 0 2px}.cl-section-sub{color:var(--text-tertiary);font-size:.9rem}.cl-topics{display:flex;flex-direction:column}#spotlight-overlay{position:fixed;inset:0;background-color:#0009;backdrop-filter:blur(8px);z-index:9999;display:flex;align-items:flex-start;justify-content:center;padding-top:15vh;opacity:0;pointer-events:none;transition:opacity .2s ease}#spotlight-overlay.active{opacity:1;pointer-events:auto}.spotlight-container{width:90%;max-width:640px;background-color:var(--bg-primary);border:1px solid var(--border-color);border-radius:16px;box-shadow:0 20px 60px #0006;overflow:hidden;transform:translateY(-20px) scale(.95);transition:all .2s ease}#spotlight-overlay.active .spotlight-container{transform:translateY(0) scale(1)}.spotlight-search{display:flex;align-items:center;padding:1.25rem 1.5rem;border-bottom:1px solid var(--border-color);gap:1rem}.spotlight-search-icon{color:var(--text-tertiary);flex-shrink:0}.spotlight-input{flex:1;background:none;border:none;outline:none;font-size:1.125rem;color:var(--text-primary);font-weight:500}.spotlight-input::placeholder{color:var(--text-tertiary)}.spotlight-results{max-height:400px;overflow-y:auto;padding:.5rem}.spotlight-results::-webkit-scrollbar{width:6px}.spotlight-results::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:3px}.spotlight-result-item{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;border-radius:8px;cursor:pointer;transition:all .15s ease;margin-bottom:.25rem}.spotlight-result-item:hover,.spotlight-result-item.selected{background-color:var(--accent-light)}.spotlight-result-item.selected{border-left:3px solid var(--accent-primary);padding-left:calc(1rem - 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var(--practice-transition);font-size:14px;color:var(--text-primary)}.practice-mcq-option:hover:not(.disabled){border-color:var(--accent-primary);background:rgba(var(--accent-primary-rgb),.05)}.practice-mcq-option.selected{border-color:var(--accent-primary);background:var(--accent-light)}.practice-mcq-option.correct{border-color:var(--success);background:var(--success-bg)}.practice-mcq-option.incorrect{border-color:var(--error);background:var(--error-bg)}.practice-mcq-option.correct-answer{border-color:var(--success);background:var(--success-bg)}.practice-mcq-option.disabled{cursor:default;opacity:.8}.practice-mcq-letter{width:32px;height:32px;border-radius:var(--r-sm);background:var(--bg-tertiary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;color:var(--text-secondary);flex-shrink:0;transition:all var(--practice-transition)}.practice-mcq-option.selected .practice-mcq-letter{background:var(--accent-primary);color:#fff}.practice-mcq-option.correct .practice-mcq-letter{background:var(--success);color:#fff}.practice-mcq-option.incorrect .practice-mcq-letter{background:var(--error);color:#fff}.practice-mcq-option.correct-answer .practice-mcq-letter{background:var(--success);color:#fff}.practice-mcq-text{flex:1;line-height:1.5}.practice-mcq-icon{width:20px;height:20px;flex-shrink:0;display:none}.practice-mcq-option.correct .practice-mcq-icon,.practice-mcq-option.incorrect .practice-mcq-icon,.practice-mcq-option.correct-answer .practice-mcq-icon{display:block}.practice-explanation{margin-top:16px;padding:16px 20px;background:rgba(var(--accent-primary-rgb),.07);border-radius:0 var(--r-sm) var(--r-sm) 0;border-left:3px solid var(--accent-primary);animation:practiceCardFadeIn .3s ease}.practice-explanation-title{font-size:13px;font-weight:600;color:var(--accent-primary);margin:0 0 8px;text-transform:uppercase;letter-spacing:.5px}.practice-explanation-text{font-size:14px;line-height:1.6;color:var(--text-secondary);margin:0}.practice-structured-actions{display:flex;align-items:center;gap:12px;margin-top:20px;flex-wrap:wrap}.practice-action-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:var(--r-sm);border:1.5px solid var(--border-color);background:var(--card-bg);color:var(--text-secondary);font-size:13px;font-weight:500;cursor:pointer;transition:all var(--practice-transition)}.practice-action-btn:hover{border-color:var(--accent-primary);color:var(--accent-primary);background:rgba(var(--accent-primary-rgb),.05)}.practice-action-btn.primary{background:var(--accent-primary);border-color:var(--accent-primary);color:#fff}.practice-action-btn.primary:hover{opacity:.9}.practice-action-btn svg{width:16px;height:16px}.practice-ai-checker{margin-top:16px;border-radius:var(--r);border:1.5px solid var(--border-color);overflow:hidden;animation:practiceCardFadeIn .3s ease;background:var(--bg-secondary)}.practice-ai-checker-header{display:flex;align-items:center;gap:8px;padding:12px 16px;background:var(--bg-tertiary);border-bottom:1px solid var(--border-color);font-size:13px;font-weight:600;color:var(--text-primary)}.practice-ai-checker-header svg{width:16px;height:16px;color:var(--accent-primary)}.practice-ai-checker-input{padding:16px}.practice-ai-textarea{width:100%;min-height:100px;padding:12px 16px;border:1.5px solid var(--border-color);border-radius:var(--r-sm);background:var(--card-bg);color:var(--text-primary);font-size:14px;line-height:1.6;resize:vertical;font-family:inherit;transition:border-color var(--practice-transition)}.practice-ai-textarea:focus{outline:none;border-color:var(--accent-primary)}.practice-ai-textarea::placeholder{color:var(--text-tertiary)}.practice-ai-submit-row{display:flex;align-items:center;justify-content:flex-end;gap:8px;margin-top:10px}.practice-ai-response{padding:16px;border-top:1px solid var(--border-color);font-size:14px;line-height:1.7;color:var(--text-secondary)}.practice-ai-response p{margin:0 0 8px}.practice-ai-response strong{color:var(--text-primary)}.practice-ai-loading{display:flex;align-items:center;gap:10px;padding:16px;color:var(--text-tertiary);font-size:13px}.practice-ai-loading .spinner{width:16px;height:16px;border:2px solid var(--border-color);border-top-color:var(--accent-primary);border-radius:50%;animation:practiceAiSpin .6s linear infinite}@keyframes practiceAiSpin{to{transform:rotate(360deg)}}.practice-mark-scheme{margin-top:16px;padding:16px 20px;background:var(--success-bg);border-radius:0 var(--r-sm) var(--r-sm) 0;border-left:3px solid var(--success);animation:practiceCardFadeIn .3s ease}.practice-mark-scheme-title{font-size:13px;font-weight:600;color:var(--success);margin:0 0 8px;text-transform:uppercase;letter-spacing:.5px}.practice-mark-scheme-text{font-size:14px;line-height:1.7;color:var(--text-secondary);margin:0;white-space:pre-wrap}.practice-question-footer{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-top:1px solid var(--border-color);background:var(--bg-secondary)}.practice-footer-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-tertiary);text-decoration:none;cursor:pointer;transition:color var(--practice-transition);border:none;background:none;padding:0}.practice-footer-link:hover{color:var(--accent-primary)}.practice-footer-link svg{width:14px;height:14px}.practice-selection-view{max-width:900px;margin:0 auto;padding:32px;animation:practiceFadeIn .4s ease}@keyframes practiceFadeIn{0%{opacity:0}to{opacity:1}}.practice-selection-header{margin-bottom:32px}.practice-selection-title{font-size:28px;font-weight:700;color:var(--text-primary);margin:0 0 8px}.practice-selection-subtitle{font-size:15px;color:var(--text-secondary);margin:0}.practice-empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;text-align:center;padding:48px}.practice-empty-icon{width:80px;height:80px;border-radius:20px;background:var(--accent-light);display:flex;align-items:center;justify-content:center;margin-bottom:24px}.practice-empty-icon svg{width:40px;height:40px;color:var(--accent-primary)}.practice-empty-title{font-size:20px;font-weight:600;color:var(--text-primary);margin:0 0 8px}.practice-empty-text{font-size:14px;color:var(--text-secondary);margin:0}.practice-topic-score{display:flex;align-items:center;gap:16px;padding:16px 20px;background:var(--card-bg);border-radius:var(--r);border:1px solid var(--border-color);margin-bottom:20px}.practice-score-circle{width:50px;height:50px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;flex-shrink:0}.practice-score-circle.good{background:var(--success-bg);color:var(--success)}.practice-score-circle.medium{background:var(--warning-bg);color:var(--warning)}.practice-score-circle.low{background:var(--error-bg);color:var(--error)}.practice-score-circle.none{background:var(--bg-tertiary);color:var(--text-tertiary)}.practice-score-details{flex:1}.practice-score-label{font-size:14px;font-weight:600;color:var(--text-primary);margin:0 0 2px}.practice-score-sub{font-size:12px;color:var(--text-tertiary);margin:0}.practice-score-reset{padding:6px 12px;border-radius:var(--r-sm);border:1px solid var(--border-color);background:transparent;color:var(--text-tertiary);font-size:12px;cursor:pointer;transition:all var(--practice-transition)}.practice-score-reset:hover{border-color:var(--error);color:var(--error)}.practice-back-banner{display:flex;align-items:center;gap:10px;padding:10px 16px;background:rgba(var(--accent-primary-rgb),.08);border-bottom:1px solid var(--border-color);cursor:pointer;transition:background var(--practice-transition)}.practice-back-banner:hover{background:rgba(var(--accent-primary-rgb),.14)}.practice-back-banner svg{width:16px;height:16px;color:var(--accent-primary)}.practice-back-banner span{font-size:13px;font-weight:500;color:var(--accent-primary)}@media(max-width:900px){.practice-nav{width:280px;min-width:280px}.practice-content-scroll{padding:20px}.practice-content-header{padding:20px 20px 0}}@media(max-width:768px){.practice-container{flex-direction:column}.practice-nav{width:100%;min-width:100%;max-height:50vh;border-right:none;border-bottom:1px solid var(--border-color)}.practice-content-scroll{padding:16px}.practice-content-header{padding:16px 16px 0}.practice-structured-actions{flex-direction:column;align-items:stretch}.practice-question-footer{flex-direction:column;gap:10px}}.settings-page{max-width:720px;margin:0 auto;padding:44px 26px 90px}.settings-head{margin-bottom:28px}.settings-title{font-size:1.7rem;font-weight:800;letter-spacing:-.02em;color:var(--text-primary);margin:0}.settings-sub{color:var(--text-tertiary);font-size:.95rem;margin:6px 0 0}.set-section{margin-top:26px}.set-eyebrow{display:block;font-family:Fira Mono,monospace;font-size:.7rem;letter-spacing:.04em;color:var(--text-tertiary);text-transform:lowercase;margin-bottom:10px}.set-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--r);box-shadow:var(--shadow-sm);padding:18px 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var(--border-color);border-radius:var(--r-sm);font-size:.9rem;color:var(--text-primary)}.set-input:focus{outline:none;border-color:var(--accent-primary)}.set-guest-note{font-size:.78rem;color:var(--text-tertiary);margin-top:12px}.set-row{display:flex;align-items:center;justify-content:space-between;gap:16px}.theme-toggle-group{display:inline-flex;gap:4px;background:var(--bg-tertiary);border-radius:var(--r-pill);padding:4px;flex-shrink:0}.theme-opt{display:inline-flex;align-items:center;gap:7px;border:none;background:transparent;color:var(--text-secondary);font-size:.85rem;font-weight:500;padding:7px 16px;border-radius:var(--r-pill);cursor:pointer;transition:background-color .15s,color .15s}.theme-opt i{width:15px;height:15px}.theme-opt:hover{color:var(--text-primary)}.theme-opt.active{background:var(--accent-light);color:var(--accent-secondary)}.set-stack>*+*{margin-top:16px}.set-toggle-row{display:flex;align-items:flex-start;gap:12px;cursor:pointer}.set-toggle-row 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var(--border-color);border-radius:var(--r-sm)}.set-provider-row+.set-provider-row{margin-top:10px}.set-provider-id{display:flex;align-items:center;gap:12px;min-width:0}.set-provider-icon{width:38px;height:38px;border-radius:var(--r-pill);display:grid;place-items:center;flex-shrink:0}.set-data{display:flex;gap:10px;flex-wrap:wrap}.set-about p{font-size:.86rem;color:var(--text-secondary);line-height:1.7;margin:0}.set-about .brand{font-family:Fira Mono,monospace;color:var(--text-primary)}