*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background:var(--bg-deepest);color:var(--text-primary);-webkit-font-smoothing:antialiased;min-height:100vh}button,.btn,.tab-btn,input[type=submit]{font-family:var(--font-sans)}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.sidebar{width:var(--sidebar-width);background:var(--bg-primary);border-right:1px solid var(--border-subtle);z-index:100;flex-direction:column;height:100vh;display:flex;position:fixed;top:0;left:0}.sidebar-logo{border-bottom:1px solid var(--border-subtle);align-items:center;gap:10px;padding:18px 20px;display:flex}.sidebar-logo-img{border-radius:12px;flex-shrink:0;width:28px;height:28px}.sidebar-logo-text{letter-spacing:0;color:var(--text-primary);font-size:13px;font-weight:600}.logo-study-accent{color:var(--accent)}.logo-blue{color:var(--olive)}.logo-dark{color:var(--text-primary)}.sidebar-tab{color:var(--text-muted);cursor:pointer;transition:color var(--dur) var(--ease);-webkit-user-select:none;user-select:none;letter-spacing:0;border-left:3px solid #0000;align-items:center;gap:11px;padding:10px 20px;font-size:13px;display:flex}.sidebar-tab:hover{color:var(--text-primary)}.sidebar-tab-smartnotes{color:var(--accent);opacity:.9}.sidebar-tab-smartnotes:hover{color:var(--accent);opacity:1}.sidebar-tab-smartnotes svg{opacity:.8}[data-theme=light] .sidebar-tab-smartnotes{color:var(--olive)}[data-theme=light] .sidebar-tab-smartnotes:hover{color:var(--olive-hover)}.sidebar-tab-active{color:var(--text-primary);border-left-color:var(--accent);font-weight:600}.sidebar-tab svg{opacity:.5;flex-shrink:0;width:18px;height:18px}.sidebar-tab-active svg{opacity:1}.sidebar-section-label{letter-spacing:0;color:var(--text-muted);opacity:.5;padding:4px 20px 2px;font-size:13px;font-weight:600}.sidebar-footer{border-top:1px solid var(--border-subtle)}.sidebar-user-row{align-items:center;gap:10px;padding:12px 16px;display:flex}.sidebar-user-avatar{background:var(--accent-glow);border:1px solid color-mix(in srgb, var(--olive) 25%, transparent);width:28px;height:28px;color:var(--accent);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:13px;font-weight:600;display:flex}.sidebar-user-info{flex:1;min-width:0}.sidebar-email{color:var(--text-muted);text-overflow:ellipsis;white-space:nowrap;font-size:13px;display:block;overflow:hidden}.sidebar-logout{color:var(--text-muted);cursor:pointer;transition:color var(--dur);font-size:13px;font-family:var(--font-sans);background:0 0;border:none;padding:0}.sidebar-logout:hover{color:var(--error)}.sidebar-feedback-icon{color:var(--text-muted);cursor:pointer;transition:color var(--dur);background:0 0;border:none;flex-shrink:0;align-items:center;padding:4px;display:flex}.sidebar-feedback-icon:hover{color:var(--accent)}.main-content{margin-left:var(--sidebar-width);margin-right:var(--streak-width);flex:1;min-height:100vh;padding:28px 36px}.streak-panel{width:var(--streak-width);background:var(--bg-primary);border-left:1px solid var(--border-subtle);flex-direction:column;gap:20px;height:100vh;padding:24px 16px;display:flex;position:fixed;top:0;right:0;overflow-y:auto}.streak-widget{text-align:center;background:var(--bg-secondary);border-radius:var(--radius-lg);border:1px solid var(--border-subtle);padding:20px 12px}.streak-number{color:var(--accent);font-size:40px;font-weight:600;line-height:1}.streak-label{color:var(--text-secondary);margin-top:4px;font-size:13px}.streak-week{justify-content:center;gap:6px;margin-top:14px;display:flex}.streak-dot{background:var(--bg-tertiary);border:1px solid var(--border-default);border-radius:50%;width:10px;height:10px}.streak-dot.active{background:var(--olive);border-color:var(--olive);box-shadow:0 0 0 3px color-mix(in srgb, var(--olive) 16%, transparent)}.streak-today{color:var(--success);justify-content:center;align-items:center;gap:6px;margin-top:12px;font-size:13px;display:flex}.streak-today.not-yet{color:var(--text-muted)}.timer-widget{background:var(--bg-secondary);border-radius:var(--radius-lg);border:1px solid var(--border-subtle);text-align:center;padding:16px}.timer-display{color:var(--text-primary);font-variant-numeric:tabular-nums;letter-spacing:0;font-size:28px;font-weight:600}.timer-controls{justify-content:center;gap:6px;margin-top:12px;display:flex}.timer-btn{background:var(--accent-glow);color:var(--accent);border-radius:var(--radius);cursor:pointer;transition:all var(--dur);box-shadow:var(--shadow-card);border:none;padding:6px 14px;font-size:13px}.timer-btn:hover,.timer-btn.active{background:var(--olive);color:var(--on-olive)}.timer-modes{justify-content:center;gap:4px;margin-top:10px;display:flex}.timer-mode{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:999px;padding:4px 8px;font-size:13px}.timer-mode:hover{color:var(--text-secondary)}.timer-mode.active{color:var(--accent);background:var(--accent-glow)}.dash-header{justify-content:space-between;align-items:flex-start;margin-bottom:24px;display:flex}.dash-title{letter-spacing:-.015em;color:var(--text-primary);margin-bottom:4px;font-size:28px;font-weight:600;line-height:1.15}.dash-subtitle{color:var(--text-muted);font-size:13px;font-weight:500}.stats-grid{grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:28px;display:grid}.stat-card{background:var(--bg-secondary);border-top:1px solid var(--hairline);border-left:1px solid var(--hairline);border-right:1px solid var(--hairline);border-bottom:1px solid var(--hairline);border-radius:var(--radius-lg);transition:box-shadow var(--dur);box-shadow:var(--shadow-card);padding:18px}.stat-card:hover{box-shadow:var(--shadow-card)}.stat-icon{display:none}.stat-number{color:var(--text-primary);letter-spacing:0;font-size:20px;font-weight:600;line-height:1}.stat-label{letter-spacing:0;color:var(--text-muted);margin-top:6px;font-size:13px;font-weight:600}@keyframes guideShine{0%{left:-80%}to{left:110%}}.guide-row{background:var(--bg-secondary);border-top:1px solid var(--hairline);border-left:1px solid var(--hairline);border-right:1px solid var(--hairline);border-bottom:1px solid var(--hairline);border-radius:var(--radius-lg);cursor:pointer;box-shadow:var(--shadow-card);transition:box-shadow var(--dur);align-items:center;gap:14px;margin-bottom:8px;padding:12px 16px;display:flex;position:relative;overflow:hidden}.guide-row:before{content:"";background:var(--wash);pointer-events:none;z-index:1;width:55%;height:100%;position:absolute;top:0;left:-80%}.guide-row:hover:before{animation:.45s forwards guideShine}.guide-row:hover{box-shadow:var(--shadow-card)}.guide-row-icon{background:var(--accent-glow);border:1px solid color-mix(in srgb, var(--olive) 20%, transparent);border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:17px;display:flex}.guide-row-info{flex:1;min-width:0}.guide-row-title{color:var(--text-primary);letter-spacing:-.015em;white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:600;overflow:hidden}.guide-row-meta{color:var(--text-muted);margin-top:3px;font-size:13px;font-weight:500}.guide-row-right{flex-shrink:0;align-items:center;gap:8px;display:flex}.guide-row-chevron{opacity:.2;width:14px;height:14px}.section-header{justify-content:space-between;align-items:center;margin-top:24px;margin-bottom:16px;display:flex}.section-header h2{color:var(--text-primary);font-size:20px;font-weight:600}.section-label{letter-spacing:0;color:var(--text-muted);margin-bottom:12px;font-size:13px;font-weight:600;display:block}.card{background:var(--bg-secondary);border-top:1px solid var(--hairline);border-left:1px solid var(--hairline);border-right:1px solid var(--hairline);border-bottom:1px solid var(--hairline);border-radius:var(--radius-lg);cursor:pointer;transition:box-shadow var(--dur);box-shadow:var(--shadow-card);margin-bottom:8px;padding:16px}.card:hover{box-shadow:var(--shadow-card)}.card h3{color:var(--text-primary);margin-bottom:4px;font-size:15px}.card p{color:var(--text-secondary);font-size:13px}.card-row{justify-content:space-between;align-items:center;display:flex}.bookmark-btn{cursor:pointer;transition:transform var(--dur);color:var(--text-muted);background:0 0;border:none;padding:4px;font-size:17px}.bookmark-btn:hover{transform:scale(1.2)}.bookmark-btn.active{color:var(--accent)}.folder-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;margin-top:12px;display:grid}.folder-card{background:var(--bg-secondary);border-top:1px solid var(--hairline);border-left:1px solid var(--hairline);border-right:1px solid var(--hairline);border-bottom:1px solid var(--hairline);border-radius:var(--radius-lg);text-align:center;cursor:pointer;transition:box-shadow var(--dur);box-shadow:var(--shadow-card);padding:20px}.folder-card:hover{box-shadow:var(--shadow-float);border-top-color:color-mix(in srgb, var(--olive) 25%, var(--line))}.folder-card h3{color:var(--text-primary);margin-bottom:4px;font-size:15px}.folder-card p{color:var(--text-muted);font-size:13px}.add-folder-card{box-shadow:none;color:var(--text-muted);letter-spacing:0;background:0 0;border:none;font-weight:600}.add-folder-card:hover{background:var(--accent-glow);box-shadow:var(--shadow-card);color:var(--accent);border:none}.btn{background:var(--olive);color:var(--on-olive);cursor:pointer;transition:all var(--dur);letter-spacing:0;box-shadow:var(--shadow-card);border:none;border-radius:999px;padding:9px 22px;font-size:13px;font-weight:600;transform:translateY(0)}.btn:hover{background:var(--accent-secondary);box-shadow:var(--shadow-card);transform:translateY(-2px)}.btn:active{background:var(--accent-dark);box-shadow:var(--shadow-card);transform:translateY(2px)}.btn-green{background:var(--success)}.btn-green:hover{background:var(--olive)}.btn-gray{background:var(--text-muted)}.btn-gray:hover{background:var(--surface-card)}.btn-red,.btn-red:hover{background:var(--error-solid)}.btn-outline{background:var(--accent-glow);color:var(--accent);cursor:pointer;transition:all var(--dur);letter-spacing:0;box-shadow:var(--shadow-card);border:none;border-radius:999px;padding:8px 20px;font-size:13px;font-weight:600;transform:translateY(0)}.btn-outline:hover{background:var(--accent-glow);box-shadow:var(--shadow-card);transform:translateY(-1px)}.btn-outline:active{box-shadow:var(--shadow-card);transform:translateY(2px)}input[type=text],input[type=email],input[type=password],input[type=search]{background:var(--bg-tertiary);border:1px solid var(--border-default);border-radius:var(--radius);color:var(--text-primary);width:100%;transition:border-color var(--dur);margin-bottom:10px;padding:10px 14px;font-size:15px}input:focus{border-color:var(--olive);box-shadow:0 0 0 2px var(--accent-glow);outline:none}input::placeholder{color:var(--text-muted)}.tabs{border-bottom:1px solid var(--border-subtle);gap:4px;margin-bottom:16px;padding-bottom:0;display:flex}.tab-btn{color:var(--text-secondary);cursor:pointer;transition:all var(--dur);background:0 0;border:none;border-bottom:2px solid #0000;margin-bottom:-1px;padding:10px 18px;font-size:13px;font-weight:500}.tab-btn:hover{color:var(--text-primary)}.tab-btn.active{color:var(--accent);border-bottom-color:var(--accent)}.guide-content{background:var(--bg-secondary);border-radius:var(--radius);border:1px solid var(--border-subtle);color:var(--text-secondary);padding:24px;font-size:15px;line-height:1.5}.qa-item{border:1px solid var(--border-subtle);border-radius:var(--radius);transition:border-color var(--dur);margin-bottom:8px;overflow:hidden}.qa-item:hover{border-color:var(--border-default)}.qa-question{cursor:pointer;background:var(--bg-secondary);color:var(--text-primary);-webkit-user-select:none;user-select:none;justify-content:space-between;align-items:center;padding:14px 16px;font-size:15px;font-weight:500;display:flex}.qa-question:hover{background:var(--bg-tertiary)}.qa-chevron{transition:transform var(--dur);color:var(--text-muted);font-size:13px}.qa-chevron.open{transform:rotate(180deg)}.qa-answer{max-height:0;transition:all var(--dur) var(--ease);background:var(--bg-tertiary);color:var(--text-secondary);padding:0 16px;font-size:13px;line-height:1.5;overflow:hidden}.qa-answer.visible{max-height:200px;padding:14px 16px}.notes-list{padding:0;list-style:none}.notes-list li{border-bottom:1px solid var(--border-subtle);color:var(--text-secondary);gap:10px;padding:10px 0;font-size:15px;line-height:1.5;display:flex}.notes-list li:last-child{border-bottom:none}.notes-list li:before{content:"";background:var(--olive);border-radius:50%;flex-shrink:0;width:6px;height:6px;margin-top:8px}.flashcard-container{perspective:1000px;cursor:pointer;width:100%;max-width:520px;height:320px;margin:24px auto}.flashcard-inner{width:100%;height:100%;transition:transform var(--dur) var(--ease);transform-style:preserve-3d;position:relative}.flashcard-inner.flipped{transform:rotateY(180deg)}.flashcard-face{backface-visibility:hidden;border-radius:var(--radius-lg);text-align:center;justify-content:center;align-items:center;width:100%;height:100%;padding:32px;font-size:17px;line-height:1.5;display:flex;position:absolute}.flashcard-front{background:var(--bg-secondary);color:var(--text-primary);box-shadow:var(--shadow-card)}.flashcard-back{background:linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));color:var(--accent);box-shadow:var(--shadow-float);transform:rotateY(180deg)}.flashcard-label{color:var(--text-muted);letter-spacing:0;font-size:13px;font-weight:600;position:absolute;top:12px;left:16px}.flashcard-actions{justify-content:center;gap:12px;margin-top:16px;display:flex}.fc-btn{cursor:pointer;transition:all var(--dur);box-shadow:var(--shadow-card);border:none;border-radius:999px;padding:10px 28px;font-size:13px;font-weight:600;transform:translateY(0)}.fc-btn:hover{box-shadow:var(--shadow-card);transform:translateY(-2px)}.fc-btn:active{box-shadow:var(--shadow-card);transform:translateY(2px)}.fc-btn-know{background:var(--bg-primary);color:var(--success);border:1.5px solid var(--success)}.fc-btn-know:hover{background:var(--success);color:var(--on-olive)}.fc-btn-again{background:var(--bg-primary);color:var(--error);border:1.5px solid var(--error)}.fc-btn-again:hover{background:var(--error-solid);color:var(--on-olive)}.fc-btn-back{background:var(--bg-primary);color:var(--text-muted);border:none;padding:8px 16px;font-size:13px}.fc-btn-back:hover{color:var(--text-primary)}.fc-btn-back-subtle{color:var(--text-muted);cursor:pointer;font-size:13px;font-family:var(--font-sans);transition:color var(--dur);background:0 0;border:none;border-radius:12px;padding:4px 8px}.fc-btn-back-subtle:hover{color:var(--text-secondary)}.flashcard-progress{text-align:center;color:var(--text-muted);margin-top:12px;font-size:13px}.fc-progress-tracker{background:var(--bg-secondary);border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);justify-content:center;gap:32px;margin-bottom:16px;padding:14px 20px;display:flex}.fc-progress-stat{flex-direction:column;align-items:center;gap:3px;display:flex}.fc-progress-count{letter-spacing:0;font-size:20px;font-weight:600;line-height:1}.fc-progress-label{letter-spacing:0;color:var(--text-muted);font-size:13px;font-weight:600}.fc-correct .fc-progress-count{color:var(--success)}.fc-wrong .fc-progress-count{color:var(--error)}.fc-unseen .fc-progress-count{color:var(--text-muted)}.guides-search-trigger{background:var(--bg-secondary);border-radius:var(--radius);cursor:pointer;color:var(--text-muted);font-size:13px;font-family:var(--font-sans);border:none;border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline);box-shadow:var(--shadow-card);transition:all var(--dur);white-space:nowrap;align-items:center;gap:8px;padding:7px 16px;display:flex}.guides-search-trigger:hover{box-shadow:var(--shadow-card);color:var(--text-secondary);transform:translateY(-1px)}.guides-search-trigger kbd{background:var(--bg-tertiary);color:var(--text-muted);font-size:13px;font-family:var(--font-sans);border-radius:999px;padding:1px 5px}.fc-hub-card{background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius);transition:all var(--dur);justify-content:space-between;align-items:center;margin-bottom:10px;padding:16px;display:flex}.fc-hub-card:hover{border-color:var(--border-default);background:var(--bg-tertiary)}.retain-page-header{justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:20px;display:flex}.retain-page-header h2{margin:8px 0 0}.retain-page-header .btn-outline{flex:none}.retain-action-error{background:var(--error-bg);max-width:720px;color:var(--error);border-radius:12px;margin:0 auto 14px;padding:10px 14px;font-size:13px}.quiz-question-card{background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);max-width:720px;box-shadow:var(--shadow-card);transition:box-shadow var(--dur) var(--ease);margin:0 auto;padding:32px}[data-theme=light] .quiz-question-card{box-shadow:var(--shadow-card)}@media (max-width:640px){.retain-page-header{flex-direction:column;align-items:stretch}.retain-page-header .btn-outline{width:100%}}.quiz-question-text{color:var(--text-primary);letter-spacing:0;margin-bottom:22px;font-size:17px;font-weight:600;line-height:1.5}.quiz-counter{color:var(--text-muted);margin-bottom:8px;font-size:13px}.quiz-option{text-align:left;background:var(--bg-tertiary);border:1px solid var(--border-subtle);border-radius:var(--radius);width:100%;color:var(--text-primary);cursor:pointer;letter-spacing:0;transition:border-color var(--dur), background var(--dur), transform var(--dur), box-shadow var(--dur);margin-bottom:10px;padding:14px 18px;font-size:15px;line-height:1.5;display:block;position:relative;overflow:hidden}.quiz-option:hover,.quiz-option.selected{border-color:var(--olive);background:var(--accent-glow)}.quiz-option.correct{border-color:var(--success);background:var(--success-bg);color:var(--success)}.quiz-option.wrong{border-color:var(--error);background:var(--error-bg);color:var(--error)}.quiz-option.missed{border-color:var(--warning);background:var(--warning-bg);color:var(--warning)}.quiz-option.disabled{pointer-events:none;opacity:.45}@keyframes quiz-shine-green{0%{background-position:-150% 0}to{background-position:250% 0}}@keyframes quiz-shake{0%,to{transform:translate(0)}20%{transform:translate(-7px)}40%{transform:translate(7px)}60%{transform:translate(-5px)}80%{transform:translate(5px)}}@keyframes quiz-glow-pulse{0%,to{opacity:1}50%{opacity:.85}}.quiz-option.correct-shine{pointer-events:none;border-color:var(--success);color:var(--text-primary);background:var(--success-bg);box-shadow:var(--shadow-card);background-size:200% 100%;animation:1.2s forwards quiz-shine-green;transform:scale(1.025)}[data-theme=light] .quiz-option.correct-shine{background:var(--surface-card);background-size:200% 100%}.quiz-option.wrong-shake{pointer-events:none;border-color:var(--error);background:var(--error-bg);color:var(--error);box-shadow:var(--shadow-card);animation:.55s cubic-bezier(.36,.07,.19,.97) quiz-shake}.quiz-option.correct-glow{pointer-events:none;border-color:var(--success);background:var(--success-bg);color:var(--success);animation:1.6s ease-in-out infinite quiz-glow-pulse}.quiz-gotit-btn{background:linear-gradient(135deg, var(--accent), var(--accent-secondary));width:100%;color:var(--on-olive);border-radius:var(--radius);letter-spacing:0;cursor:pointer;box-shadow:var(--shadow-card);transition:transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), filter var(--dur);border:none;margin-top:22px;padding:14px 18px;font-size:15px;font-weight:600;animation:.25s ease-out fadeIn;display:block}.quiz-gotit-btn:hover{box-shadow:var(--shadow-float);filter:brightness(1.05);transform:translateY(-1px)}.quiz-gotit-btn:active{transform:translateY(0)}.quiz-explanation-btn{border:1px solid var(--accent);border-radius:var(--radius);color:var(--accent);cursor:pointer;transition:background var(--dur), transform var(--dur);background:0 0;margin-top:12px;padding:10px 16px;font-size:13px;font-weight:600;animation:.3s ease-out fadeIn}.quiz-explanation-btn:hover{background:var(--accent-glow);transform:translateY(-1px)}.quiz-explanation-stage{color:var(--text-secondary);background:color-mix(in srgb, var(--accent-glow) 60%, transparent);border-left:3px solid var(--accent);border-radius:0 var(--radius) var(--radius) 0;margin-top:14px;padding:10px 14px;font-size:13px;font-style:italic;animation:.3s ease-out fadeIn}.quiz-explanation-panel{background:var(--accent-glow);border:1px solid var(--accent);border-radius:var(--radius);color:var(--text-primary);margin-top:14px;padding:16px 18px;font-size:13px;line-height:1.5;animation:.4s ease-out fadeIn}[data-theme=light] .quiz-explanation-panel{background:var(--accent-glow)}.nclex-rationale{border-radius:var(--radius);background:var(--accent-glow);border:1px solid var(--accent);color:var(--text-secondary);margin-top:16px;padding:14px 16px;font-size:13px;line-height:1.5}.nclex-rationale strong{color:var(--accent);letter-spacing:0;margin-bottom:4px;font-size:13px;display:block}.nclex-sata-checkbox{text-align:left;background:var(--bg-tertiary);border:1px solid var(--border-subtle);border-radius:var(--radius);cursor:pointer;width:100%;color:var(--text-primary);transition:border-color var(--dur);align-items:flex-start;gap:10px;margin-bottom:8px;padding:12px 16px;font-size:15px;display:flex}.nclex-sata-checkbox:hover{border-color:var(--olive)}.nclex-sata-checkbox input[type=checkbox]{accent-color:var(--accent);flex-shrink:0;margin-top:2px}.nclex-sata-checkbox.correct{border-color:var(--success);background:var(--success-bg);color:var(--success)}.nclex-sata-checkbox.wrong{border-color:var(--error);background:var(--error-bg);color:var(--error)}.nclex-sata-checkbox.missed{border-color:var(--warning);background:var(--warning-bg);color:var(--warning)}.nclex-type-badge{letter-spacing:0;background:var(--accent-glow);color:var(--accent);border:1px solid var(--accent);border-radius:999px;margin-bottom:10px;padding:2px 8px;font-size:13px;font-weight:600;display:inline-block}.retain-status-bar{justify-content:space-between;align-items:center;padding:4px 0 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.nv-frame{aspect-ratio:auto;height:clamp(140px,24vh,260px);padding:8px}.sn-visual-bubble{z-index:5;box-shadow:var(--shadow-float);white-space:nowrap;gap:6px;position:absolute;transform:translate(-50%)}.sn-panel-label{letter-spacing:0;color:var(--text-muted);flex-shrink:0;margin-bottom:8px;font-size:13px;font-weight:600}.sn-paper-stage{perspective:1800px;flex:1;min-height:0;display:flex;position:relative}.sn-paper{z-index:2;background:var(--surface-card);background-blend-mode:multiply;border-top:1px solid var(--hairline);border-left:1px solid var(--hairline);border-right:1px solid var(--hairline);border-bottom:1px solid var(--hairline);box-shadow:var(--shadow-float);font-family:var(--font-sans);color:var(--olive-ink);min-height:0;transition:box-shadow var(--dur) var(--ease);background-image:none;border-radius:12px;outline:none;flex:1;padding:40px 48px;font-size:15px;line-height:1.5;position:relative;overflow-y:auto}[data-theme=dark] .sn-paper{background:var(--surface-card);background-blend-mode:multiply;color:var(--olive-ink);box-shadow:var(--shadow-card);background-image:none}.sn-paper:empty:before{content:attr(data-placeholder);color:var(--olive-ink);pointer-events:none;font-style:italic}.sn-paper h1{letter-spacing:-.015em;color:var(--olive-ink);margin:0 0 16px;font-size:20px;font-weight:600;line-height:1.15}.sn-paper h2{letter-spacing:-.015em;color:var(--olive);margin:22px 0 6px;font-size:17px;font-weight:600}.sn-paper h3{letter-spacing:0;color:var(--olive-ink);margin:14px 0 4px;font-size:15px;font-weight:600}.sn-paper strong{color:var(--olive-hover);font-weight:600}.sn-paper em{color:var(--text-secondary);font-style:italic}.sn-paper del{opacity:.5;text-decoration:line-through}.sn-paper code{background:var(--accent-glow);color:var(--olive-hover);border-radius:999px;padding:1px 5px;font-family:Courier New,monospace;font-size:13px}[data-theme=light] .sn-paper code{background:var(--accent-glow)}.sn-paper .sn-date-line{letter-spacing:0;color:var(--text-muted);margin:16px 0 4px;font-size:13px;font-weight:600}.sn-paper mark.sn-callout{background:var(--warning-bg);border-left:3px solid var(--warning);color:var(--text-primary);border-radius:0 12px 12px 0;margin:6px 0;padding:6px 12px;font-style:normal;display:block}[data-theme=light] .sn-paper mark.sn-callout{background:var(--warning-bg)}.sn-paper li{margin-bottom:2px;margin-left:18px}.sn-paper p{margin:0 0 6px}.sn-paper h1{font-size:var(--fs-20)}.sn-paper h4{color:var(--ink);margin:12px 0 4px;font-size:15px;font-weight:600}.sn-paper ul,.sn-paper ol{margin:2px 0 8px;padding-left:4px}.sn-paper li>ul,.sn-paper li>ol{margin:2px 0 4px}.sn-paper li>ul{list-style:circle}.sn-paper li{color:var(--ink)}.sn-transcript{white-space:normal;color:var(--ink);cursor:text;-webkit-user-select:text;user-select:text}.sn-transcript p{margin:0 0 14px}.sn-lecture-bar{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.sn-view-seg button{white-space:nowrap}.sn-paper hr{border:none;border-top:1px solid var(--hairline);margin:18px 0}.sn-paper blockquote{border-left:3px solid var(--olive);opacity:.85;background:color-mix(in srgb, var(--accent-glow) 60%, transparent);border-radius:0 12px 12px 0;margin:8px 0 8px 8px;padding:4px 12px;font-style:italic}.sn-viewer-wrap{background:var(--bg-secondary);border-top:1px solid var(--hairline);box-shadow:var(--shadow-card);border-radius:12px;flex-direction:column;grid-area:1/3;min-height:0;display:flex;overflow:hidden}[data-theme=light] .sn-viewer-wrap{background:var(--surface-card);border-top:1px solid var(--hairline);box-shadow:var(--shadow-card)}.sn-viewer-toolbar{border-bottom:1px solid var(--border-subtle);flex-shrink:0;justify-content:space-between;align-items:center;gap:12px;padding:10px 14px;display:flex}.sn-viewer-controls{align-items:center;gap:6px;display:flex}.sn-viewer-body{flex:1;min-height:0;position:relative;overflow:hidden}.sn-viewer-drag{box-shadow:0 0 0 2px var(--olive-hover)!important}.sn-viewer-drop-overlay{z-index:10;background:var(--accent-glow);color:var(--accent);pointer-events:none;flex-direction:column;justify-content:center;align-items:center;gap:10px;font-size:13px;font-weight:600;display:flex;position:absolute;inset:0}.sn-viewer-drop-overlay p{margin:0}.sn-viewer-empty{height:100%;color:var(--text-muted);text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:10px;padding:20px;display:flex}.sn-viewer-empty p{margin:0;font-size:13px;line-height:1.5}.sn-pdf-pages{overscroll-behavior:contain;-webkit-overflow-scrolling:touch;background:var(--surface-card);flex-direction:column;gap:10px;height:100%;padding:10px;display:flex;overflow-y:auto}.sn-pdf-page{background:var(--surface-card);width:100%;height:auto;box-shadow:var(--shadow-card);border-radius:12px;flex:none;display:block}.sn-viewer-img{object-fit:contain;width:100%;height:100%;display:block}.sn-slide-fallback{background:var(--bg-primary);flex-direction:column;height:100%;min-height:0;display:flex}.sn-slide-fallback-notice{border-bottom:1px solid var(--border-subtle);background:var(--warning-bg);color:var(--text-secondary);flex-shrink:0;padding:9px 14px;font-size:13px;line-height:1.5}.sn-slide-list{flex:1;gap:12px;min-height:0;padding:14px;display:grid;overflow-y:auto}.sn-slide-card{border:1px solid var(--border-subtle);background:var(--bg-secondary);box-shadow:var(--shadow-card);border-radius:12px;padding:16px 18px}.sn-slide-num{color:var(--accent);letter-spacing:0;margin-bottom:10px;font-size:13px;font-weight:600}.sn-slide-text{color:var(--text-primary);white-space:pre-wrap;overflow-wrap:anywhere;margin:0 0 9px;font-size:13px;line-height:1.5}.sn-slide-text:last-child{margin-bottom:0}.sn-slide-no-text{color:var(--text-muted);margin:0;font-size:13px;font-style:italic}.sn-guide-viewer{height:100%;color:var(--text-secondary);padding:16px;font-size:13px;line-height:1.5;overflow-y:auto}.sn-guide-qa-viewer{height:100%;padding:14px 16px;overflow-y:auto}.sn-qa-pair{border-bottom:1px solid var(--border-subtle);margin-bottom:18px;padding-bottom:18px}.sn-qa-pair:last-child{border-bottom:none;margin-bottom:0}.sn-qa-q{color:var(--text-primary);margin:0 0 6px;font-size:13px;line-height:1.5}.sn-qa-q strong{font-weight:600}.sn-qa-a{color:var(--text-secondary);margin:0;font-size:13px;line-height:1.5}.sn-extracted-viewer{flex-direction:column;height:100%;display:flex;overflow:hidden}.sn-extracted-filename{color:var(--text-muted);border-bottom:1px solid var(--border-subtle);flex-shrink:0;padding:6px 14px;font-size:13px;font-weight:600}.sn-extracted-content{color:var(--text-secondary);white-space:pre-wrap;font-size:13px;line-height:1.5;font-family:var(--font-sans);flex:1;margin:0;padding:14px;overflow-y:auto}.sn-extracted-empty{color:var(--text-muted);margin:0;padding:16px 14px;font-size:13px}.sn-viewer-video{background:var(--ink);width:100%;height:100%;max-height:100%}.sn-diagram-wrap{background:var(--bg-secondary);border-top:1px solid var(--hairline);box-shadow:var(--shadow-card);border-radius:12px;flex-direction:column;grid-area:3/3;min-height:0;padding:10px 14px;display:flex;overflow:hidden}[data-theme=light] .sn-diagram-wrap{background:var(--surface-card);border-top:1px solid var(--hairline);box-shadow:var(--shadow-card)}.sn-diagram-body{flex:1;justify-content:center;align-items:center;min-height:0;display:flex;overflow:hidden}.sn-diagram-placeholder{color:var(--text-muted);text-align:center;flex-direction:column;align-items:center;gap:8px;padding:12px;display:flex}.sn-diagram-placeholder p{margin:0;font-size:13px;line-height:1.5}.sn-diagram-render{width:100%;max-height:100%;overflow:auto}.sn-diagram-render svg{max-width:100%;height:auto}.sn-notes-picker{position:relative}.sn-notes-dropdown{background:var(--bg-secondary);border:1px solid var(--border-default);width:220px;box-shadow:var(--shadow-md);z-index:100;border-radius:12px;position:absolute;top:calc(100% + 6px);right:0;overflow:hidden}.sn-notes-dropdown-header{border-bottom:1px solid var(--border-subtle);justify-content:space-between;align-items:center;padding:8px 12px;display:flex}.sn-new-btn{color:var(--accent);cursor:pointer;background:0 0;border:none;padding:0;font-size:13px;font-weight:600}.sn-new-btn:hover{opacity:.8}.sn-notes-item{color:var(--text-secondary);cursor:pointer;white-space:nowrap;text-overflow:ellipsis;padding:9px 12px;font-size:13px;overflow:hidden}.sn-notes-item:hover{background:var(--bg-hover);color:var(--text-primary)}.sn-notes-item.active{color:var(--accent);font-weight:600}.sn-notes-item.muted{color:var(--text-muted);cursor:default;font-style:italic}.sn-notes-item.muted:hover{background:0 0}.sn-guide-select{background:var(--bg-tertiary);border:1px solid var(--border-default);color:var(--text-secondary);cursor:pointer;font-size:13px;font-family:var(--font-sans);border-radius:999px;outline:none;padding:5px 10px}.sn-open-btn{background:var(--olive);color:var(--on-olive);box-shadow:var(--shadow-card);cursor:pointer;transition:transform var(--dur), box-shadow var(--dur);border:none;border-radius:999px;padding:6px 14px;font-size:13px;font-weight:600}.sn-open-btn:hover{box-shadow:var(--shadow-card);transform:translateY(-1px)}.sn-open-btn:active{box-shadow:var(--shadow-card);transform:translateY(2px)}.sn-index{flex-direction:column;gap:28px;max-width:1400px;padding:28px 32px 64px;display:flex}.sn-index-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px;display:flex}.sn-index-title{font-family:var(--font-sans);letter-spacing:-.015em;color:var(--text-primary);margin:0 0 4px;font-size:28px;font-weight:600}.sn-index-subtitle{color:var(--text-muted);margin:0;font-size:13px}.sn-index-empty{text-align:center;color:var(--text-muted);border:1px dashed var(--border-subtle);border-radius:12px;padding:48px;font-size:15px}.sn-grid{grid-template-columns:repeat(4,1fr);gap:28px 24px;display:grid}@media (max-width:1280px){.sn-grid{grid-template-columns:repeat(3,1fr)}}@media (max-width:960px){.sn-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:600px){.sn-grid{grid-template-columns:1fr}}.sn-card{cursor:pointer;perspective:1400px;outline:none;flex-direction:column;gap:14px;display:flex}.sn-card:focus-visible .sn-card-paper-1{box-shadow:var(--shadow-card)}.sn-card-stack{aspect-ratio:4/5;width:100%;transform-style:preserve-3d;transition:transform var(--dur) var(--ease);position:relative}.sn-card-paper{background:var(--surface-card);border-top:1px solid var(--hairline);border-left:1px solid var(--hairline);border-right:1px solid var(--hairline);border-bottom:1px solid var(--hairline);box-shadow:var(--shadow-float);transition:transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), opacity var(--dur);transform-origin:0 100%;border-radius:12px;position:absolute;inset:0}[data-theme=dark] .sn-card-paper{background:var(--surface-card);box-shadow:var(--shadow-card)}.sn-card-paper-3{opacity:0;z-index:1;transform:translate(0)translateY(0)rotate(0)}.sn-card-paper-2{opacity:0;z-index:2;transform:translate(0)translateY(0)rotate(0)}.sn-card-paper-1{opacity:1;z-index:3;transform:translate(0)translateY(0)rotate(0)}.sn-card-cover{object-fit:contain;width:100%;height:100%;padding:16px;display:block}.sn-card-making{position:absolute;bottom:12px;right:12px}.sn-card-preview{font-family:var(--font-sans);color:var(--olive-ink);-webkit-line-clamp:9;line-clamp:9;height:100%;-webkit-mask-image:linear-gradient(180deg, var(--ink) 70%, transparent 100%);mask-image:linear-gradient(180deg, var(--ink) 70%, transparent 100%);-webkit-mask-image:linear-gradient(180deg, var(--ink) 70%, transparent 100%);-webkit-box-orient:vertical;padding:22px 22px 18px;font-size:13px;line-height:1.5;display:-webkit-box;overflow:hidden}.sn-card:hover .sn-card-paper-1{box-shadow:var(--shadow-card)}.sn-card-meta{flex-direction:column;gap:5px;padding:2px 10px 12px;display:flex}.sn-card-title{font-family:var(--font-sans);letter-spacing:-.015em;color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:15px;font-weight:600;overflow:hidden}.sn-card-sub{color:var(--text-muted);align-items:center;gap:8px;font-size:13px;display:flex}.sn-card-date{font-weight:500}.sn-card-class{background:var(--accent-glow);color:var(--accent);letter-spacing:0;white-space:nowrap;text-overflow:ellipsis;border-radius:999px;max-width:60%;padding:2px 8px;font-size:13px;font-weight:600;overflow:hidden}[data-theme=light] .sn-card-class{background:var(--accent-glow);color:var(--olive)}.create-page{max-width:740px}.create-header{margin-bottom:24px}.create-title{letter-spacing:-.015em;color:var(--accent);margin-bottom:6px;font-size:28px;font-weight:600}[data-theme=light] .create-title{color:var(--ink)}.create-subtitle{color:var(--text-muted);margin:0;font-size:13px}.create-banner{border-radius:12px;justify-content:space-between;align-items:center;gap:14px;margin-bottom:20px;padding:13px 18px;font-size:13px;font-weight:500;display:flex}.create-banner-info{background:var(--bg-secondary);border:1px solid var(--border-default);color:var(--accent)}.create-banner-error{background:var(--error-bg,var(--error-solid));border:1px solid var(--error);color:var(--error)}.create-banner-error button{background:var(--error-solid);color:var(--on-olive);cursor:pointer;border:0;border-radius:999px;flex:none;padding:7px 12px;font-weight:600}.create-field{margin-bottom:20px}.create-label{letter-spacing:0;color:var(--text-muted);margin-bottom:8px;font-size:13px;font-weight:600;display:block}.create-label-hint{letter-spacing:0;text-transform:none;color:var(--text-muted);opacity:.75;font-size:15px;font-weight:500}.create-input,.create-select,.create-textarea{background:var(--bg-secondary);border:1px solid var(--border-default);width:100%;color:var(--text-primary);font-family:var(--font-sans);transition:border-color var(--dur);border-radius:12px;outline:none;font-size:13px}.create-input,.create-select{padding:11px 14px}.create-textarea{resize:none;min-height:280px;padding:13px 14px;line-height:1.5}.create-input:focus,.create-select:focus,.create-textarea:focus,[data-theme=light] .create-input:focus,[data-theme=light] .create-select:focus,[data-theme=light] .create-textarea:focus{border-color:var(--olive);box-shadow:var(--shadow-glow)}.create-char-count{color:var(--text-muted);margin-top:5px;font-size:13px}.create-manual-header{justify-content:space-between;align-items:center;margin-bottom:14px;display:flex}.create-manual-header .create-label{margin-bottom:0}.create-cards-list{flex-direction:column;gap:10px;margin-bottom:12px;display:flex}.create-card{background:var(--surface-card);border-top:1px solid var(--hairline);border-left:1px solid var(--hairline);border-right:1px solid var(--hairline);border-bottom:1px solid var(--hairline);box-shadow:var(--shadow-card);transition:box-shadow var(--dur);border-radius:12px;align-items:flex-start;gap:12px;padding:14px 14px 14px 16px;display:flex}.create-card:hover{box-shadow:var(--shadow-card)}[data-theme=light] .create-card{background:var(--surface);border-top:1px solid var(--hairline);border-left:1px solid var(--hairline);border-right:1px solid var(--line);border-bottom:1px solid var(--line);box-shadow:var(--shadow-card)}.create-card-num{color:var(--accent);text-align:center;flex-shrink:0;min-width:22px;padding-top:10px;font-size:13px;font-weight:600}[data-theme=light] .create-card-num{color:var(--olive)}.create-card-body{flex:1;min-width:0}.create-card-side{align-items:center;gap:8px;min-width:0;display:flex}.create-card-side .create-card-input{flex:1;min-width:0}.create-card-input{width:100%;font-family:var(--font-sans);color:var(--text-primary);background:0 0;border:none;outline:none;padding:6px 0;font-size:13px;font-weight:600}.create-card-input::placeholder{color:var(--text-muted);opacity:.6;font-style:italic;font-weight:600}.create-card-term::placeholder{color:var(--accent);opacity:.5}[data-theme=light] .create-card-term::placeholder{color:var(--olive);opacity:.55}.create-card-def::placeholder{color:var(--text-muted);opacity:.55}.create-card-divider{background:var(--border-subtle);border-radius:999px;height:1px;margin:2px 0 4px}.create-card-remove{color:var(--text-muted);cursor:pointer;transition:color var(--dur), background var(--dur);background:0 0;border:none;border-radius:12px;flex-shrink:0;padding:4px 6px;font-size:20px;line-height:1}.create-card-remove:hover{color:var(--error);background:var(--error-bg)}.create-add-card{border:2px dashed var(--border-default);width:100%;color:var(--accent);font-family:var(--font-sans);cursor:pointer;transition:border-color var(--dur), background var(--dur);background:0 0;border-radius:12px;padding:11px;font-size:13px;font-weight:600}.create-add-card:hover,[data-theme=light] .create-add-card:hover{border-color:var(--olive);background:var(--accent-glow)}.create-checks{flex-wrap:wrap;gap:20px;margin-bottom:24px;display:flex}.create-check-label{cursor:pointer;color:var(--text-secondary);align-items:center;gap:8px;font-size:13px;font-weight:500;display:flex}.create-submit-btn{padding:13px 36px;font-size:15px}.empty-state{text-align:center;color:var(--text-muted);padding:48px 20px;font-size:15px}.empty-state-icon{opacity:.5;margin-bottom:12px;font-size:40px}.resource-load-actions{justify-content:center;gap:10px;margin-top:18px;display:flex}.timestamp{color:var(--text-muted);font-size:13px}.guide-source a{color:var(--olive);font-weight:600}.confirm-overlay{background:var(--scrim);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.confirm-dialog{background:var(--bg-primary);border:1px solid var(--border-default);border-radius:var(--radius-lg);width:100%;max-width:400px;box-shadow:var(--shadow-lg);padding:28px}.confirm-dialog h3{color:var(--text-primary);margin-bottom:8px}.confirm-dialog p{color:var(--text-secondary);margin-bottom:20px;font-size:13px}.confirm-actions{justify-content:flex-end;gap:8px;display:flex}.completion-card{text-align:center;background:var(--bg-secondary);border-radius:var(--radius-lg);border:1px solid var(--border-subtle);max-width:500px;margin:40px auto;padding:40px}.completion-icon{margin-bottom:12px;font-size:40px}.completion-title{color:var(--text-primary);margin-bottom:8px;font-size:20px;font-weight:600}.completion-stat{color:var(--accent);font-size:40px;font-weight:600}.completion-detail{color:var(--text-secondary);margin-top:4px;font-size:13px}.completion-actions{justify-content:center;gap:10px;margin-top:24px;display:flex}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:.25s ease-out fadeIn}@keyframes slideInToast{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}@keyframes 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button:hover:not(:disabled){color:var(--ink)}.create-batch-dialog{width:calc(100% - 32px);max-width:480px}.create-batch-list{gap:8px;margin:0 0 16px;padding:0;list-style:none;display:grid}.create-batch-list label{border:1px solid var(--line);cursor:pointer;color:var(--text-primary);border-radius:12px;align-items:center;gap:10px;padding:10px 12px;font-size:13px;display:flex}.create-batch-list label span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.create-batch-list input{accent-color:var(--olive)}.create-batch-warning{color:var(--red,var(--error))!important}.cordia-tutor-attachments{flex-wrap:wrap;gap:6px;margin:0;padding:0;list-style:none;display:flex}.cordia-tutor-attachments li{border:1px solid var(--line);background:var(--surface);border-radius:999px;align-items:center;gap:6px;max-width:100%;padding:4px 6px 4px 10px;font-size:13px;font-weight:600;display:inline-flex}.cordia-tutor-attachments li span{text-overflow:ellipsis;white-space:nowrap;max-width:180px;overflow:hidden}.cordia-tutor-attachments button{color:var(--muted-ink);cursor:pointer;background:0 0;border:none;padding:0 2px;font-size:15px;line-height:1}.cordia-tutor-attach-note{color:var(--muted-ink);margin:0;font-size:13px;line-height:1.5}.create-split-page{gap:18px;width:min(1180px,100%);margin-inline:auto;display:grid}.create-split-top{justify-items:center;gap:6px;display:grid}.create-split-submit{min-width:240px;padding:14px 34px;font-size:15px}.create-split-hint{color:var(--muted-ink);font-size:13px;font-weight:600}.create-split-grid{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:18px;display:grid}.create-split-grid.is-single{grid-template-columns:minmax(0,760px);justify-content:center}.create-window{border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-card);transition:border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);border-radius:20px;gap:12px;padding:22px;display:grid}.create-window.is-active{border-color:color-mix(in srgb, var(--olive) 45%, var(--line));box-shadow:0 0 0 3px var(--accent-glow), var(--shadow-card)}.create-window-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;display:flex}.create-import{min-height:36px;padding-inline:12px}.create-window-title{color:var(--ink);letter-spacing:-.015em;margin:0;font-size:max(13px,clamp(1.5rem,2.4vw,2rem));font-weight:600;line-height:1.15}.create-window-sub{color:var(--muted-ink);margin:-4px 0 4px;font-size:13px}.create-dropbox{aspect-ratio:1;border:2px dashed color-mix(in srgb, var(--ink) 22%, var(--line));background:var(--sand,var(--bg-hover));width:100%;max-height:340px;color:var(--ink);font:inherit;text-align:center;cursor:pointer;transition:border-color var(--dur) var(--ease), background var(--dur) var(--ease);border-radius:20px;align-content:center;place-items:center;gap:6px;padding:20px;display:grid}.create-dropbox:hover:not(:disabled){border-color:var(--olive)}.create-dropbox:disabled{cursor:not-allowed;opacity:.7}.create-dropbox strong{font-size:15px;font-weight:600}.create-dropbox span{color:var(--muted-ink);font-size:13px}.create-dropbox.drop-target-active{border-style:solid;border-color:var(--olive-hover)}.create-paste{color:var(--ink);gap:6px;font-size:13px;font-weight:600;display:grid}.create-paste .create-textarea{min-height:120px;font-weight:500}.create-split-settings{border:1px solid var(--line);background:var(--surface);border-radius:20px;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:end;gap:14px 18px;padding:18px 22px;display:grid}.create-split-settings>label{color:var(--ink);gap:6px;font-size:13px;font-weight:600;display:grid}.create-split-settings .create-checks{grid-column:1/-1;margin:0}.create-choice-actions{gap:8px;display:grid}.create-choice-actions .btn,.create-choice-actions .btn-outline{width:100%}.create-choice-cancel{color:var(--muted-ink);font:inherit;cursor:pointer;background:0 0;border:0;padding:6px;font-size:13px}@media (max-width:860px){.create-split-grid,.create-split-settings{grid-template-columns:minmax(0,1fr)}.create-dropbox{aspect-ratio:auto;min-height:180px}.create-window{padding:18px}}.create-split-page .create-back-link{justify-self:start;margin-bottom:0}.guide-boxes{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:18px;margin-top:6px;display:grid}.guide-box{border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-card);transition:border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);border-radius:20px;gap:10px;padding:18px;display:grid}.guide-box.is-drop-target,.guide-class.is-drop-target{border-color:var(--olive-hover);box-shadow:0 0 0 3px 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0;border:0;flex:1;align-items:center;gap:10px;padding:12px;display:flex}.guide-class-toggle:hover{background:var(--bg-hover)}.guide-class-toggle strong{text-overflow:ellipsis;white-space:nowrap;min-width:0;font-size:15px;font-weight:600;overflow:hidden}.guide-class-toggle small{color:var(--muted-ink);flex:none;margin-left:auto;font-size:13px}.guide-chevron{width:12px;color:var(--muted-ink);transition:transform var(--dur) var(--ease);flex:none;font-size:17px;line-height:1;display:inline-block}.guide-chevron.is-open{transform:rotate(90deg)}.guide-class-open{color:var(--olive-hover);font:inherit;cursor:pointer;background:0 0;border:0;border-radius:999px;flex:none;padding:5px 10px;font-size:13px;font-weight:600}.guide-class-open:hover{background:var(--accent-glow)}.guide-class-list{border-top:1px solid var(--line);gap:6px;padding:4px 10px 10px;display:grid}.library-guide-row{background:var(--bg-hover,transparent);cursor:pointer;transition:background var(--dur) var(--ease);border-radius:12px;align-items:center;gap:6px;padding:10px 12px;display:flex}.library-guide-row:hover{background:var(--accent-glow)}.library-guide-row.dragging{opacity:.5}.library-guide-row-main{flex:1;min-width:0}.library-guide-row-main h3{text-overflow:ellipsis;white-space:nowrap;color:var(--ink);margin:0 0 3px;font-size:15px;font-weight:600;overflow:hidden}.library-guide-row-main p{color:var(--muted-ink);align-items:center;gap:8px;margin:0;font-size:13px;display:flex}.library-guide-row-progress{align-items:center;gap:4px;display:inline-flex}.library-guide-row-delete{color:var(--error);opacity:.55;font-size:15px}@media (max-width:860px){.guide-boxes{grid-template-columns:minmax(0,1fr)}}