:root{--color-bg-primary: #fef7f9;--color-bg-secondary: #fff5f7;--color-bg-tertiary: #ffe8ee;--color-bg-card: rgba(255, 255, 255, .9);--color-bg-glass: rgba(255, 182, 193, .1);--color-text-primary: #2d2d3a;--color-text-secondary: #5a5a6e;--color-text-muted: #8e8e9e;--color-accent-primary: #f472b6;--color-accent-secondary: #ec4899;--color-accent-gradient: linear-gradient(135deg, #f9a8d4 0%, #f472b6 50%, #7dd3fc 100%);--color-japanese: #f472b6;--color-math: #38bdf8;--color-english: #4ade80;--mastery-0: #fce7f3;--mastery-1: #fbcfe8;--mastery-2: #f9a8d4;--mastery-3: #f472b6;--mastery-4: #7dd3fc;--mastery-5: #38bdf8;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--shadow-sm: 0 2px 8px rgba(244, 114, 182, .15);--shadow-md: 0 4px 16px rgba(244, 114, 182, .2);--shadow-lg: 0 8px 32px rgba(244, 114, 182, .25);--shadow-glow: 0 0 20px rgba(244, 114, 182, .4);--transition-fast: .15s ease;--transition-base: .25s ease;--transition-slow: .4s ease;--font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font-family);background:var(--color-bg-primary);color:var(--color-text-primary);line-height:1.6;min-height:100vh;overflow-x:hidden}body:before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background:radial-gradient(ellipse at 20% 0%,rgba(251,207,232,.5) 0%,transparent 50%),radial-gradient(ellipse at 80% 20%,rgba(125,211,252,.3) 0%,transparent 40%),radial-gradient(ellipse at 60% 100%,rgba(249,168,212,.4) 0%,transparent 50%);pointer-events:none;z-index:-1}#root{min-height:100vh;display:flex;flex-direction:column}a{color:var(--color-accent-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-accent-secondary)}button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;outline:none}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--color-bg-secondary)}::-webkit-scrollbar-thumb{background:var(--color-bg-tertiary);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--color-accent-primary)}.app-layout{display:flex;min-height:100vh}.sidebar{width:280px;background:var(--color-bg-secondary);border-right:1px solid rgba(244,114,182,.15);padding:var(--space-lg);display:flex;flex-direction:column;position:fixed;left:0;top:0;bottom:0;z-index:100}.main-content{flex:1;margin-left:280px;min-height:100vh;container-type:inline-size;container-name:main}.header{background:#fff5f7f2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(244,114,182,.15);padding:var(--space-md) var(--space-xl);position:sticky;top:0;z-index:50}.page-content{padding:var(--space-xl)}.logo{display:flex;align-items:center;gap:var(--space-md);padding-bottom:var(--space-lg);border-bottom:1px solid rgba(244,114,182,.2);margin-bottom:var(--space-lg)}.logo-icon{width:40px;height:40px;background:var(--color-accent-gradient);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.25rem}.logo-text{font-size:1.25rem;font-weight:700;background:var(--color-accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.nav-menu{display:flex;flex-direction:column;gap:var(--space-xs)}.nav-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md);border-radius:var(--radius-md);color:var(--color-text-secondary);transition:all var(--transition-fast);background:transparent;text-align:left;width:100%}.nav-item:hover{background:var(--color-bg-glass);color:var(--color-text-primary)}.nav-item.active{background:var(--color-accent-gradient);color:#fff;box-shadow:var(--shadow-glow)}.nav-icon{font-size:1.25rem;width:24px;text-align:center}.sync-status{display:inline-flex;align-items:center;font-size:.875rem}.sync-loading{animation:spin 1s linear infinite}.sync-offline{color:#ef4444}.sync-ok{opacity:.6}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.subject-tabs{display:flex;gap:var(--space-sm)}.subject-tab{padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-md);font-weight:500;transition:all var(--transition-fast);background:var(--color-bg-glass);color:var(--color-text-secondary)}.subject-tab:hover{background:var(--color-bg-tertiary);color:var(--color-text-primary)}.subject-tab.active{color:#fff}.subject-tab.active[data-subject=subj_ja]{background:var(--color-japanese)}.subject-tab.active[data-subject=subj_math]{background:var(--color-math)}.subject-tab.active[data-subject=subj_en]{background:var(--color-english)}.card{background:var(--color-bg-card);border:1px solid rgba(244,114,182,.15);border-radius:var(--radius-lg);padding:var(--space-lg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all var(--transition-base)}.card:hover{border-color:#f472b666;box-shadow:var(--shadow-md)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-md)}.card-title{font-size:1rem;font-weight:600}.unit-card{background:var(--color-bg-card);border:1px solid rgba(244,114,182,.15);border-radius:var(--radius-lg);padding:var(--space-lg);cursor:pointer;transition:all var(--transition-base)}.unit-card:hover{border-color:#f472b666;transform:translateY(-2px);box-shadow:var(--shadow-md)}.unit-card-header{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-md);margin-bottom:var(--space-md)}.unit-name{font-weight:600;line-height:1.4}.unit-tags{display:flex;flex-wrap:wrap;gap:var(--space-xs);margin-top:var(--space-sm)}.tag{font-size:.75rem;padding:2px 8px;border-radius:100px;background:var(--color-bg-tertiary);color:var(--color-text-secondary)}.tag.important{background:#f472b633;color:var(--color-japanese)}.tag.high-freq{background:#fbbf2433;color:#fbbf24}.mastery-badge{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;font-weight:700;font-size:.875rem;flex-shrink:0}.mastery-badge[data-level="0"]{background:var(--mastery-0);color:var(--color-text-muted)}.mastery-badge[data-level="1"]{background:var(--mastery-1)}.mastery-badge[data-level="2"]{background:var(--mastery-2)}.mastery-badge[data-level="3"]{background:var(--mastery-3)}.mastery-badge[data-level="4"]{background:var(--mastery-4)}.mastery-badge[data-level="5"]{background:var(--mastery-5)}.mastery-slider-container{display:flex;flex-direction:column;gap:var(--space-sm)}.mastery-slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:8px;border-radius:4px;background:linear-gradient(to right,var(--mastery-0),var(--mastery-5));outline:none}.mastery-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:24px;height:24px;border-radius:50%;background:#fff;cursor:pointer;box-shadow:var(--shadow-md);transition:transform var(--transition-fast)}.mastery-slider::-webkit-slider-thumb:hover{transform:scale(1.1)}.mastery-labels{display:flex;justify-content:space-between;font-size:.75rem;color:var(--color-text-muted)}.form-group{display:flex;flex-direction:column;gap:var(--space-sm)}.form-label{font-weight:500;color:var(--color-text-secondary);font-size:.875rem}.form-input,.form-textarea{background:var(--color-bg-tertiary);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-md);padding:var(--space-md);color:var(--color-text-primary);font-family:inherit;font-size:1rem;transition:border-color var(--transition-fast)}.form-input:focus,.form-textarea:focus{outline:none;border-color:var(--color-accent-primary)}.form-textarea{min-height:120px;resize:vertical}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:var(--space-md) var(--space-lg);border-radius:var(--radius-md);font-weight:500;transition:all var(--transition-fast)}.btn-primary{background:var(--color-accent-gradient);color:#fff}.btn-primary:hover{box-shadow:var(--shadow-glow);transform:translateY(-1px)}.btn-secondary{background:var(--color-bg-tertiary);color:var(--color-text-primary)}.btn-secondary:hover{background:var(--color-bg-card)}.btn-ghost{background:transparent;color:var(--color-text-secondary)}.btn-ghost:hover{background:var(--color-bg-glass);color:var(--color-text-primary)}.grid{display:grid;gap:var(--space-lg)}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-auto{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}.field-section{margin-bottom:var(--space-xl)}.field-title{font-size:1rem;font-weight:600;color:var(--color-text-secondary);margin-bottom:var(--space-md);padding-bottom:var(--space-sm);border-bottom:1px solid rgba(244,114,182,.2)}.calendar{background:var(--color-bg-card);border-radius:var(--radius-lg);padding:var(--space-lg);border:1px solid rgba(244,114,182,.15)}.calendar-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-lg)}.calendar-title{font-size:1.25rem;font-weight:700}.calendar-nav{display:flex;gap:var(--space-sm)}.calendar-nav button{width:36px;height:36px;border-radius:var(--radius-md);background:var(--color-bg-tertiary);color:var(--color-text-primary);display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.calendar-nav button:hover{background:var(--color-accent-primary)}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:2px}.calendar-day-header{text-align:center;font-size:.75rem;font-weight:600;color:var(--color-text-muted);padding:var(--space-sm)}.calendar-day{aspect-ratio:1;border-radius:var(--radius-sm);display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:.875rem;cursor:pointer;transition:all var(--transition-fast);background:var(--color-bg-tertiary);position:relative}.calendar-day:hover{background:var(--color-bg-glass);border-color:var(--color-accent-primary)}.calendar-day.today{border:2px solid var(--color-accent-primary)}.calendar-day.other-month{opacity:.3}.calendar-day.has-logs:after{content:"";position:absolute;bottom:4px;width:6px;height:6px;border-radius:50%;background:var(--color-accent-primary)}.calendar-day.selected{border:2px solid var(--color-accent-secondary);background:#38bdf81a}.calendar-todo-marker{position:absolute;top:2px;right:2px;width:16px;height:16px;border-radius:50%;background:var(--color-accent-secondary);color:#fff;font-size:.6rem;font-weight:600;display:flex;align-items:center;justify-content:center}.calendar-done-marker{position:absolute;top:2px;right:2px;font-size:.6rem;color:#22c55e}.calendar-legend{display:flex;gap:var(--space-lg);margin-top:var(--space-md);justify-content:center}.legend-item{display:flex;align-items:center;gap:var(--space-xs);font-size:.75rem;color:var(--color-text-muted)}.legend-dot{width:8px;height:8px;border-radius:50%}.legend-dot.log-dot{background:var(--color-accent-primary)}.legend-dot.todo-dot{background:var(--color-accent-secondary)}.calendar-summary{display:flex;gap:var(--space-md);justify-content:center}.summary-item{display:flex;flex-direction:column;align-items:center;padding:var(--space-md);background:var(--color-bg-secondary);border-radius:var(--radius-lg);border:1px solid rgba(244,114,182,.15);min-width:80px}.summary-value{font-size:1.5rem;font-weight:700;background:var(--color-accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.summary-label{font-size:.75rem;color:var(--color-text-muted)}.detail-section-title{font-size:.9rem;font-weight:600;color:var(--color-text-primary);margin-bottom:var(--space-md);display:flex;align-items:center;gap:var(--space-sm)}.detail-count{background:var(--color-accent-primary);color:#fff;font-size:.7rem;padding:2px 6px;border-radius:10px}.detail-empty{font-size:.875rem;color:var(--color-text-muted);text-align:center;padding:var(--space-md)}.calendar-detail-item{display:flex;justify-content:space-between;align-items:center;padding:var(--space-sm) var(--space-md);background:var(--color-bg-glass);border-radius:var(--radius-md)}.calendar-detail-item.completed{opacity:.6}.detail-item-content{flex:1}.detail-item-title{font-weight:500;font-size:.9rem}.detail-item-title.completed{text-decoration:line-through}.detail-item-time{font-size:.75rem;color:var(--color-text-muted);margin-left:var(--space-sm)}.detail-item-memo{font-size:.8rem;color:var(--color-text-secondary);margin-top:var(--space-xs)}.detail-item-actions{display:flex;gap:var(--space-xs)}.btn-icon{width:28px;height:28px;border-radius:50%;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-fast);font-size:.875rem}.btn-icon.complete{background:#22c55e1a;color:#22c55e}.btn-icon.complete:hover{background:#22c55e;color:#fff}.btn-icon.delete{background:transparent;color:var(--color-text-muted)}.btn-icon.delete:hover{background:#ef44441a;color:#ef4444}.mastery-badge.small{width:20px;height:20px;font-size:.65rem}.calendar-day[data-intensity="1"]{background:var(--mastery-1)}.calendar-day[data-intensity="2"]{background:var(--mastery-2)}.calendar-day[data-intensity="3"]{background:var(--mastery-3)}.calendar-day[data-intensity="4"]{background:var(--mastery-4)}.calendar-day[data-intensity="5"]{background:var(--mastery-5)}.dashboard-grid{display:grid;grid-template-columns:2fr 1fr;gap:var(--space-xl)}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-lg);margin-bottom:var(--space-xl)}.stat-card{background:var(--color-bg-card);border-radius:var(--radius-lg);padding:var(--space-lg);text-align:center;border:1px solid rgba(255,255,255,.05)}.stat-value{font-size:2rem;font-weight:700;background:var(--color-accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-label{font-size:.875rem;color:var(--color-text-secondary);margin-top:var(--space-xs)}.recommendation-list{display:flex;flex-direction:column;gap:var(--space-md)}.recommendation-item{display:flex;gap:var(--space-md);padding:var(--space-md);background:var(--color-bg-glass);border-radius:var(--radius-md);align-items:flex-start}.recommendation-rank{width:28px;height:28px;background:var(--color-accent-gradient);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.875rem;flex-shrink:0}.recommendation-content{flex:1}.recommendation-title{font-weight:600;margin-bottom:var(--space-xs)}.recommendation-meta{font-size:.75rem;color:var(--color-text-muted)}.recommendation-reasons{display:flex;flex-wrap:wrap;gap:var(--space-xs);margin-top:var(--space-sm)}.reason-tag{font-size:.7rem;padding:2px 6px;border-radius:100px;background:#6366f133;color:var(--color-accent-primary)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#2d2d3a80;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:var(--space-lg)}.modal{background:var(--color-bg-secondary);border-radius:var(--radius-xl);max-width:500px;width:100%;max-height:90vh;overflow-y:auto;border:1px solid rgba(244,114,182,.3);box-shadow:var(--shadow-lg)}.modal-header{padding:var(--space-lg);border-bottom:1px solid rgba(244,114,182,.15);display:flex;align-items:center;justify-content:space-between}.modal-title{font-size:1.25rem;font-weight:700}.modal-close{width:32px;height:32px;border-radius:var(--radius-sm);background:transparent;color:var(--color-text-secondary);display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.modal-close:hover{background:var(--color-bg-tertiary);color:var(--color-text-primary)}.modal-body{padding:var(--space-lg)}.modal-footer{padding:var(--space-lg);border-top:1px solid rgba(244,114,182,.15);display:flex;gap:var(--space-md);justify-content:flex-end}.page-title{font-size:1.75rem;font-weight:700;margin-bottom:var(--space-xl)}.last-studied{font-size:.75rem;color:var(--color-text-muted);margin-top:var(--space-sm)}.nav-badge{background:var(--color-accent-secondary);color:#fff;font-size:.65rem;padding:2px 6px;border-radius:10px;margin-left:var(--space-xs);font-weight:600}.todo-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-lg)}.todo-header .page-title{margin-bottom:0}.todo-list{display:flex;flex-direction:column;gap:var(--space-lg)}.todo-section{display:flex;flex-direction:column;gap:var(--space-md)}.todo-section-title{font-size:1rem;font-weight:600;color:var(--color-text-primary);display:flex;align-items:center;gap:var(--space-sm)}.todo-count{background:var(--color-accent-primary);color:#fff;font-size:.75rem;padding:2px 8px;border-radius:10px}.todo-item{display:flex;align-items:flex-start;gap:var(--space-md);padding:var(--space-md);background:var(--color-bg-secondary);border:1px solid rgba(244,114,182,.15);border-radius:var(--radius-lg);transition:all var(--transition-fast)}.todo-item:hover{border-color:#f472b64d}.todo-item.completed{opacity:.6}.todo-item.completed .todo-title{text-decoration:line-through}.todo-item.overdue{border-color:#ef44444d;background:#ef44440d}.todo-checkbox{flex-shrink:0}.checkbox{width:28px;height:28px;border-radius:50%;border:2px solid var(--color-accent-primary);background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#fff;font-size:.875rem;transition:all var(--transition-fast)}.checkbox:hover:not(:disabled){background:#f472b61a}.checkbox.checked{background:var(--color-accent-primary);cursor:default}.todo-content{flex:1;min-width:0}.todo-title{font-weight:500;color:var(--color-text-primary);margin-bottom:var(--space-xs)}.todo-description{font-size:.875rem;color:var(--color-text-secondary);margin-bottom:var(--space-sm)}.todo-meta{display:flex;flex-wrap:wrap;gap:var(--space-md);font-size:.75rem;color:var(--color-text-muted)}.todo-due.overdue{color:#ef4444;font-weight:500}.todo-repeat{color:var(--color-accent-secondary)}.message-stamp{max-width:128px;max-height:128px;width:100%;height:auto;display:block;background:transparent}.todo-delete{flex-shrink:0;width:28px;height:28px;border-radius:50%;border:none;background:transparent;color:var(--color-text-muted);cursor:pointer;font-size:1.25rem;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.todo-delete:hover{background:#ef44441a;color:#ef4444}.todo-empty{text-align:center;padding:var(--space-xl);color:var(--color-text-muted)}.todo-toggle-completed{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);background:transparent;border:1px solid rgba(244,114,182,.15);border-radius:var(--radius-md);color:var(--color-text-secondary);font-size:.875rem;cursor:pointer;transition:all var(--transition-fast)}.todo-toggle-completed:hover{background:var(--color-bg-glass)}.todo-completed-list{display:flex;flex-direction:column;gap:var(--space-sm);margin-top:var(--space-sm)}.notification-status{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-md);border-radius:var(--radius-lg);margin-bottom:var(--space-lg);font-size:.875rem}.notification-status.granted{background:#22c55e1a;color:#22c55e;border:1px solid rgba(34,197,94,.2)}.notification-status.unsupported{background:#f59e0b1a;color:#f59e0b;border:1px solid rgba(245,158,11,.2)}.notification-tutorial{background:var(--color-bg-secondary);border:1px solid rgba(244,114,182,.2);border-radius:var(--radius-lg);margin-bottom:var(--space-lg);overflow:hidden}.tutorial-toggle{width:100%;display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-md);background:transparent;border:none;color:var(--color-text-primary);font-size:.9rem;cursor:pointer;text-align:left}.toggle-arrow{margin-left:auto;font-size:.75rem;color:var(--color-text-muted)}.tutorial-content{padding:0 var(--space-md) var(--space-md)}.tutorial-header{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-md)}.tutorial-header h3{font-size:.9rem;font-weight:600}.tutorial-text{font-size:.875rem;color:var(--color-text-secondary);margin-bottom:var(--space-md)}.tutorial-section h4{font-size:.9rem;font-weight:600;margin-bottom:var(--space-md);color:var(--color-text-primary)}.tutorial-note{font-size:.75rem;color:var(--color-text-muted);margin-bottom:var(--space-md)}.tutorial-steps{display:flex;flex-direction:column;gap:var(--space-md)}.tutorial-steps ol{padding-left:var(--space-lg);font-size:.875rem;color:var(--color-text-secondary)}.tutorial-steps ol li{margin-bottom:var(--space-sm)}.step{display:flex;gap:var(--space-md)}.step-number{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--color-accent-gradient);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.875rem;font-weight:600}.step-content{flex:1}.step-content strong{display:block;font-size:.9rem;margin-bottom:var(--space-xs)}.step-content p{font-size:.8rem;color:var(--color-text-muted)}.tutorial-action{width:100%;margin-top:var(--space-lg)}@media (max-width: 1024px){.sidebar{width:240px}.main-content{margin-left:240px}.dashboard-grid{grid-template-columns:1fr}.grid-3{grid-template-columns:repeat(2,1fr)}}@media (max-width: 768px){.sidebar{position:fixed;top:auto;bottom:0;left:0;right:0;width:100%;height:70px;min-height:70px;max-height:100px;transform:none;flex-direction:row;padding:var(--space-xs) var(--space-sm);padding-bottom:calc(var(--space-xs) + env(safe-area-inset-bottom,0px));padding-left:calc(var(--space-sm) + env(safe-area-inset-left,0px));padding-right:calc(var(--space-sm) + env(safe-area-inset-right,0px));border-right:none;border-top:1px solid rgba(244,114,182,.2);z-index:1000;background:#fff5f7fa;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);align-items:center}.sidebar .logo{display:none}.sidebar>div:last-child{display:none}.nav-menu{flex-direction:row;justify-content:space-around;align-items:center;width:100%;height:100%;gap:0}.nav-item{flex-direction:column;gap:2px;padding:var(--space-xs) var(--space-sm);flex:1;max-width:100px;justify-content:center;align-items:center;text-align:center;font-size:.65rem;border-radius:var(--radius-md);height:auto;min-height:50px}.nav-icon{font-size:1.25rem;line-height:1}.main-content{margin-left:0;padding-bottom:calc(80px + env(safe-area-inset-bottom,0px));min-height:100vh;min-height:100dvh}.header{padding:var(--space-sm) var(--space-md);padding-top:calc(var(--space-sm) + env(safe-area-inset-top,0px))}.header>div{flex-direction:column;gap:var(--space-sm);align-items:flex-start!important}.subject-tabs{width:100%;flex-wrap:wrap;gap:var(--space-xs);padding-bottom:var(--space-xs);justify-content:center}.subject-tab{flex:1 0 auto;padding:var(--space-sm) var(--space-md);font-size:.8rem;text-align:center;min-width:80px}.page-content{padding:var(--space-md)}.page-title{font-size:1.25rem;margin-bottom:var(--space-lg)}.stats-grid{display:flex;flex-wrap:wrap;gap:var(--space-md);padding-bottom:var(--space-sm)}.stat-card{flex:1 1 140px;padding:var(--space-md);min-width:130px}.stat-value{font-size:1.5rem}.stat-label{font-size:.75rem}.dashboard-grid{grid-template-columns:1fr;gap:var(--space-lg)}.grid-auto,.grid-2,.grid-3{grid-template-columns:1fr}.unit-card{padding:var(--space-md)}.unit-card:active{transform:scale(.98)}.card{padding:var(--space-md)}.mastery-badge{width:44px;height:44px;font-size:1rem}.recommendation-item{padding:var(--space-md)}.recommendation-rank{width:32px;height:32px}.recommendation-title{font-size:.9rem}.modal-overlay{padding:0;padding-top:var(--space-xl);align-items:flex-end}.modal{max-width:100%;width:100%;max-height:calc(90vh - env(safe-area-inset-top,0px));max-height:calc(90dvh - env(safe-area-inset-top,0px));border-radius:var(--radius-xl) var(--radius-xl) 0 0;margin-bottom:0;overflow-y:auto;-webkit-overflow-scrolling:touch}.modal-header{position:sticky;top:0;background:var(--color-bg-secondary);z-index:10}.modal-body{padding:var(--space-md);overflow-y:auto}.modal-footer{padding:var(--space-md);padding-bottom:calc(var(--space-md) + env(safe-area-inset-bottom,0px));flex-direction:column;gap:var(--space-sm);position:sticky;bottom:0;background:var(--color-bg-secondary)}.modal-footer .btn{width:100%;padding:var(--space-md);font-size:1rem;min-height:48px}.mastery-slider{height:12px}.mastery-slider::-webkit-slider-thumb{width:32px;height:32px}.mastery-labels{font-size:.65rem}.form-textarea{min-height:100px;font-size:16px}.form-input{font-size:16px;padding:var(--space-md)}.calendar{padding:var(--space-md)}.calendar-header{margin-bottom:var(--space-md)}.calendar-title{font-size:1rem}.calendar-nav button{width:44px;height:44px}.calendar-day{font-size:.75rem}.field-title{font-size:.9rem}.tag{padding:4px 10px;font-size:.7rem}.reason-tag{padding:4px 8px}}@media (max-width: 480px){.nav-item{font-size:.6rem;padding:var(--space-xs)}.nav-icon{font-size:1.25rem}.stat-card{min-width:120px}.page-title{font-size:1.1rem}.calendar-grid{gap:1px}.calendar-day{font-size:.65rem}.recommendation-item{flex-wrap:wrap}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .3s ease forwards}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.pulse{animation:pulse 2s ease-in-out infinite}@media (hover: none){.unit-card:hover{transform:none;border-color:#f472b626}.card:hover{border-color:#f472b626}.btn-primary:hover{transform:none}}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;background:var(--color-bg-primary);gap:var(--space-md)}.spinner{width:40px;height:40px;border:3px solid var(--color-bg-tertiary);border-top-color:var(--color-accent-primary);border-radius:50%;animation:spin 1s linear infinite}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--color-accent-gradient);padding:var(--space-lg)}.login-card{background:var(--color-bg-card);border-radius:var(--radius-xl);padding:var(--space-xl);width:100%;max-width:400px;box-shadow:var(--shadow-lg)}.login-header{text-align:center;margin-bottom:var(--space-xl)}.login-logo{display:flex;align-items:center;justify-content:center;gap:var(--space-sm);margin-bottom:var(--space-sm)}.login-logo .logo-icon{width:48px;height:48px;background:var(--color-accent-gradient);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:#fff}.login-logo .logo-text{font-size:1.5rem;font-weight:700;background:var(--color-accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.login-subtitle{font-size:.875rem;color:var(--color-text-muted)}.login-tabs{display:flex;gap:var(--space-sm);margin-bottom:var(--space-lg)}.login-tab{flex:1;padding:var(--space-sm) var(--space-md);background:transparent;border:none;border-radius:var(--radius-md);font-size:.875rem;font-weight:500;color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-fast)}.login-tab.active{background:var(--color-accent-primary);color:#fff}.login-form{display:flex;flex-direction:column;gap:var(--space-md)}.login-error{background:#ef44441a;color:#ef4444;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);font-size:.875rem}.login-submit{margin-top:var(--space-sm)}.login-info{margin-top:var(--space-lg);text-align:center}.login-info p{font-size:.75rem;color:var(--color-text-muted)}.login-loading{display:flex;flex-direction:column;align-items:center;gap:var(--space-md)}.account-section{margin-bottom:var(--space-xl)}.section-title{font-size:1rem;font-weight:600;margin-bottom:var(--space-md);display:flex;align-items:center;gap:var(--space-sm)}.account-card{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-lg);background:var(--color-bg-secondary);border-radius:var(--radius-lg);border:1px solid rgba(244,114,182,.15)}.account-avatar{width:48px;height:48px;background:var(--color-accent-gradient);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.25rem;font-weight:700;color:#fff;flex-shrink:0}.account-info{flex:1}.account-username{display:block;font-weight:600;font-size:1rem}.account-id{font-size:.75rem;color:var(--color-text-muted)}.device-count{background:var(--color-accent-primary);color:#fff;font-size:.7rem;padding:2px 8px;border-radius:10px;font-weight:600}.device-list{display:flex;flex-direction:column;gap:var(--space-sm)}.device-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md);background:var(--color-bg-secondary);border-radius:var(--radius-md);border:1px solid rgba(244,114,182,.15)}.device-item.current{border-color:var(--color-accent-primary);background:#f472b60d}.device-icon{font-size:1.5rem}.device-info{flex:1}.device-name{font-weight:500;display:flex;align-items:center;gap:var(--space-sm)}.current-badge{font-size:.65rem;background:var(--color-accent-primary);color:#fff;padding:2px 6px;border-radius:4px;font-weight:500}.device-meta{font-size:.75rem;color:var(--color-text-muted);display:flex;gap:var(--space-sm);margin-top:var(--space-xs)}.no-devices{color:var(--color-text-muted);text-align:center;padding:var(--space-xl)}.account-actions{display:flex;gap:var(--space-sm)}.highlight-unit{animation:highlightPulse 2s ease-out}@keyframes highlightPulse{0%,to{box-shadow:0 0 0 0 transparent}25%{box-shadow:0 0 20px 8px #f472b699}50%{box-shadow:0 0 20px 8px #38bdf899}75%{box-shadow:0 0 20px 8px #f472b666}}.account-avatar{position:relative}.account-avatar img{width:60px;height:60px;border-radius:var(--radius-lg);object-fit:cover}.avatar-edit-btn{position:absolute;bottom:-4px;right:-4px;width:24px;height:24px;border-radius:50%;background:var(--color-accent-primary);border:2px solid var(--color-bg-card);color:#fff;font-size:12px;cursor:pointer;display:flex;align-items:center;justify-content:center}.avatar-crop-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:1000}.avatar-crop-modal{background:var(--color-bg-card);border-radius:var(--radius-lg);padding:var(--space-lg);max-width:400px;width:90%}.crop-preview{position:relative;width:300px;height:300px;margin:0 auto var(--space-md);overflow:hidden;border-radius:var(--radius-md);background:var(--color-bg-tertiary)}.crop-preview img{position:absolute;max-width:none}.crop-circle{position:absolute;border:3px dashed var(--color-accent-primary);border-radius:50%;pointer-events:none}.chat-container{display:flex;flex-direction:column;height:calc(100vh - 140px);height:calc(100dvh - 140px);width:100%;overflow:hidden;padding:var(--space-xl);box-sizing:border-box}.chat-main-layout{display:flex;flex-direction:column;flex:1;min-height:0;width:100%;box-sizing:border-box;gap:var(--space-md)}.chat-input-column{display:flex;flex-direction:column;width:100%;box-sizing:border-box}.chat-messages,.chat-input-area{width:100%;max-width:100%;box-sizing:border-box}@container main (max-width: 768px){.chat-container{padding:var(--space-md)!important;height:calc(100vh - 180px);height:calc(100dvh - 180px)}}.chat-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;height:300px;gap:var(--space-md)}.chat-user-list{background:var(--color-bg-card);border-radius:var(--radius-lg);padding:var(--space-sm);box-shadow:var(--shadow-sm);flex-shrink:0}@media (min-width: 768px){.chat-container{height:calc(100vh - 180px)}.chat-main-layout:has(.chat-user-list){flex-direction:row;align-items:stretch;gap:var(--space-md)}.chat-main-layout:has(.chat-user-list) .chat-user-list{width:auto;flex:1;margin-bottom:0;flex-shrink:0;display:flex;flex-direction:column;padding:var(--space-md);min-width:0}.chat-main-layout:has(.chat-user-list) .user-list-scroll{overflow-y:auto;overflow-x:hidden;flex-direction:column;flex-wrap:nowrap;flex:1;padding-right:var(--space-xs)}.chat-main-layout:has(.chat-user-list) .chat-messages{flex:6;margin-bottom:0;min-width:0}.chat-main-layout:has(.chat-user-list) .chat-input-column{flex:3;min-width:0;height:auto;overflow-y:hidden}.chat-main-layout:has(.chat-user-list) .chat-input-column .chat-input-area{flex:1;flex-direction:column;overflow-y:auto}.chat-main-layout:has(.chat-user-list) .chat-input-column .chat-input-area .chat-input{min-height:100px;flex:1}.chat-main-layout:has(.chat-user-list) .chat-input-column .chat-input-area button{width:100%;justify-content:center}}.chat-user-list h3{font-size:.875rem;margin-bottom:var(--space-sm);color:var(--color-text-secondary)}.user-search-input{width:100%;padding:var(--space-sm) var(--space-md);margin-bottom:var(--space-sm);background:var(--color-bg-tertiary);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-primary);font-size:.875rem}.user-search-input:focus{border-color:var(--color-accent-primary);outline:none}.user-list-scroll{display:flex;gap:var(--space-sm);flex-wrap:wrap;overflow-y:auto;max-height:150px;padding-bottom:var(--space-xs)}@media (min-width: 768px){.user-list-scroll{max-height:none}}.user-item{display:flex;align-items:center;gap:var(--space-xs);padding:var(--space-sm) var(--space-md);background:var(--color-bg-tertiary);border:none;border-radius:var(--radius-md);cursor:pointer;white-space:nowrap;transition:all .2s}.user-item:hover{background:var(--color-accent-gradient);color:#fff}.user-item.active{background:var(--color-accent-primary);color:#fff}.unread-badge{background:#ef4444;color:#fff;font-size:.75rem;padding:2px 6px;border-radius:10px;min-width:20px;text-align:center}.no-users{color:var(--color-text-muted);font-size:.875rem}.chat-messages{flex:1;overflow-y:auto;background:var(--color-bg-card);border-radius:var(--radius-lg);padding:var(--space-md);margin-bottom:var(--space-md);display:flex;flex-direction:column;gap:var(--space-md);box-shadow:var(--shadow-sm);position:relative}.chat-messages-loading{position:absolute;top:0;left:0;right:0;bottom:0;background:#1e1e2ecc;display:flex;align-items:center;justify-content:center;z-index:10;border-radius:var(--radius-lg)}.no-messages{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--color-text-muted);text-align:center}.message{max-width:80%;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-lg);animation:fadeIn .3s ease;box-sizing:border-box}@media (max-width: 480px){.message{max-width:90%}}.message.sent{align-self:flex-end;background:var(--color-accent-gradient);color:#fff}.message.received{align-self:flex-start;background:var(--color-bg-tertiary)}.message.deleted .message-content{opacity:.6;font-style:italic}.message-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-xs);font-size:.75rem;opacity:.8}.message-sender{font-weight:500}.message-time{margin-left:var(--space-sm)}.message-content{word-break:break-word;line-height:1.5;white-space:pre-wrap}.message-image{max-width:100%;max-height:200px;border-radius:var(--radius-md);margin:var(--space-xs) 0;cursor:pointer;transition:transform .2s}.message-image:hover{transform:scale(1.02)}.message-footer{display:flex;justify-content:flex-end;align-items:center;gap:var(--space-sm);margin-top:var(--space-xs);font-size:.75rem}.delete-btn{background:none;border:none;color:#ffffffb3;cursor:pointer;font-size:.75rem;padding:2px 6px;border-radius:4px;transition:background .2s}.delete-btn:hover{background:#fff3}.message.received .delete-btn{color:var(--color-text-muted)}.message.received .delete-btn:hover{background:var(--color-bg-glass)}.read-status{opacity:.7}.image-preview{position:relative;display:inline-block;margin-bottom:var(--space-sm)}.image-preview img{max-height:100px;border-radius:var(--radius-md)}.image-preview button{position:absolute;top:-8px;right:-8px;width:24px;height:24px;border-radius:50%;border:none;background:var(--color-accent-secondary);color:#fff;cursor:pointer;font-size:12px;display:flex;align-items:center;justify-content:center}.image-preview-grid{display:flex;flex-wrap:wrap;gap:var(--space-sm);margin-bottom:var(--space-md);padding:var(--space-sm);background:var(--color-bg-glass);border-radius:var(--radius-md);align-items:center}.image-preview-item{position:relative;display:inline-block}.image-preview-item img{max-height:80px;max-width:100px;border-radius:var(--radius-sm);object-fit:cover}.remove-image-btn{position:absolute;top:-6px;right:-6px;width:20px;height:20px;border-radius:50%;border:none;background:var(--color-accent-secondary);color:#fff;cursor:pointer;font-size:10px;display:flex;align-items:center;justify-content:center}.image-count-info{font-size:.8rem;color:var(--color-text-muted);padding:var(--space-xs) var(--space-sm)}.message-images-grid{display:flex;flex-wrap:wrap;gap:var(--space-xs);margin-bottom:var(--space-sm)}.message-image-thumbnail{max-height:120px;max-width:150px;border-radius:var(--radius-sm);cursor:pointer;transition:transform .2s,opacity .2s;object-fit:cover}.message-image-thumbnail:hover{transform:scale(1.05);opacity:.9}.image-quality-hint{width:100%;font-size:.75rem;color:var(--color-text-muted);margin-top:var(--space-xs);padding:var(--space-xs);background:#ffffff1a;border-radius:var(--radius-sm)}.attach-btn{position:relative}.attach-count{position:absolute;top:-4px;right:-4px;background:var(--color-accent-primary);color:#fff;font-size:.65rem;width:16px;height:16px;border-radius:50%;display:flex;align-items:center;justify-content:center}.chat-input-area{display:flex;flex-direction:column;gap:var(--space-sm);background:var(--color-bg-card);padding:var(--space-md);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);max-width:100%;box-sizing:border-box}.input-message-row{display:flex;flex-direction:column;width:100%;gap:var(--space-sm)}.input-message-row .send-btn{width:100%}@media (max-width: 768px){.input-message-row{flex-direction:row;align-items:flex-end}.input-message-row .send-btn{width:auto}.chat-container{padding:var(--space-sm);height:calc(100dvh - 120px)}.chat-input-area{padding:var(--space-sm);gap:var(--space-xs)}}.attach-btn{width:100%;height:40px;border:none;background:var(--color-bg-tertiary);border-radius:var(--radius-md);font-size:1.2rem;cursor:pointer;transition:background .2s;flex-shrink:0;display:flex;align-items:center;justify-content:center}.attach-btn:hover{background:var(--color-accent-gradient)}.chat-input{flex:1;padding:var(--space-sm) var(--space-md);border:2px solid var(--color-bg-tertiary);border-radius:var(--radius-md);font-size:1rem;font-family:inherit;background:var(--color-bg-secondary);transition:border-color .2s;resize:none;min-height:40px;max-height:120px;overflow-y:auto;line-height:1.4}.chat-input:focus{outline:none;border-color:var(--color-accent-primary)}.send-btn{padding:var(--space-sm) var(--space-lg);background:var(--color-accent-gradient);color:#fff;border:none;border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:opacity .2s,transform .2s;white-space:nowrap}.send-btn:hover:not(:disabled){transform:translateY(-1px)}.send-btn:disabled{opacity:.5;cursor:not-allowed}.stamp-picker-header button{background:none;border:none;cursor:pointer;font-size:1.2rem;padding:0;color:var(--color-text-muted);width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background .2s}.stamp-picker-header button:hover{background-color:var(--color-bg-tertiary)}.fullscreen-image-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000e6;display:flex;align-items:center;justify-content:center;z-index:1000;padding:var(--space-lg);animation:fadeIn .2s ease}.fullscreen-close-btn{position:absolute;top:20px;right:20px;width:44px;height:44px;border-radius:50%;border:none;background:#fff3;color:#fff;font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s}.fullscreen-image{max-width:90vw;max-height:90vh;object-fit:contain;border-radius:var(--radius-md);box-shadow:0 10px 40px #00000080;transition:transform .2s cubic-bezier(.2,0,.2,1)}.fullscreen-image-wrapper{display:flex;align-items:center;justify-content:center;width:100%;height:100%;overflow:hidden}.fullscreen-controls{position:absolute;bottom:30px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:15px;background:#000000b3;padding:10px 24px;border-radius:30px;z-index:1001;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.input-actions-row{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:8px;width:100%}.stamp-container{position:relative;display:flex}.stamp-container .attach-btn{width:100%}.stamp-picker{position:relative;width:100%;height:200px;background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);z-index:10;display:flex;flex-direction:column;margin-top:8px;margin-bottom:8px}@media (max-width: 768px){.stamp-picker{position:fixed;top:auto;bottom:80px;left:50%;transform:translate(-50%);width:90%;max-width:340px;height:300px;margin:0;z-index:1001;box-shadow:var(--shadow-xl)}}.stamp-picker-header{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;border-bottom:1px solid var(--color-border);font-weight:700;font-size:.875rem;flex-shrink:0}.stamp-picker-header button{background:none;border:none;cursor:pointer;font-size:1.2rem;padding:0 4px;color:var(--color-text-muted)}.stamp-grid{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:8px}.stamp-item{aspect-ratio:1;display:flex;align-items:center;justify-content:center;cursor:pointer;border-radius:var(--radius-sm);transition:background-color .2s;height:64px}.stamp-item:hover{background-color:var(--color-bg-hover)}.stamp-item img{width:100%;height:100%;object-fit:contain;max-width:64px;max-height:64px}.zoom-btn{background:transparent;border:none;color:#fff;font-size:1.2rem;cursor:pointer;width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background .2s}.zoom-btn:hover{background:#fff3}.zoom-level{color:#fff;font-weight:700;font-size:.9rem;min-width:40px;text-align:center;font-feature-settings:"tnum"}.download-btn{background:var(--color-accent-primary);color:#fff;text-decoration:none;padding:6px 16px;display:flex;align-items:center;gap:6px;border-radius:20px;font-size:.85rem;font-weight:600;margin-left:8px;transition:all .2s}.battery-optimization-guide{margin-top:var(--space-lg);padding:var(--space-md);background:#ffc1071a;border:1px solid rgba(255,193,7,.3);border-radius:var(--radius-md)}.battery-optimization-guide h5{margin:0 0 var(--space-sm) 0;color:#ffc107;font-size:.9rem}.battery-optimization-guide .tutorial-note{font-size:.85rem;margin-bottom:var(--space-sm);color:var(--color-text-muted)}.battery-steps{margin:0;padding-left:var(--space-lg);font-size:.85rem}.battery-steps li{margin-bottom:var(--space-xs)}.download-btn:hover{filter:brightness(1.1);transform:translateY(-1px)}.skeleton-loader{display:flex;flex-direction:column;gap:var(--space-md);padding:var(--space-md)}.skeleton-message{display:flex;gap:var(--space-sm);animation:fadeIn .3s ease}.skeleton-message.sent{flex-direction:row-reverse}.skeleton-bubble{padding:var(--space-sm) var(--space-md);border-radius:var(--radius-lg);background:linear-gradient(90deg,var(--color-bg-tertiary) 25%,var(--color-bg-glass) 50%,var(--color-bg-tertiary) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite}.skeleton-bubble.sent{margin-left:auto}.skeleton-line{height:14px;border-radius:var(--radius-sm);background:linear-gradient(90deg,#ffffff1a 25%,#fff3,#ffffff1a 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;margin-bottom:4px}.skeleton-line:last-child{margin-bottom:0}.skeleton-line.short{width:80px}.skeleton-line.medium{width:150px}.skeleton-line.long{width:220px}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.loading-more{display:flex;justify-content:center;align-items:center;padding:var(--space-md);gap:var(--space-sm);color:var(--color-text-muted);font-size:.85rem}.loading-spinner{width:20px;height:20px;border:2px solid var(--color-bg-tertiary);border-top-color:var(--color-accent-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.load-more-btn{display:flex;justify-content:center;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);margin:var(--space-sm) auto;background:var(--color-bg-glass);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-muted);cursor:pointer;transition:all .2s;font-size:.85rem}.load-more-btn:hover{background:var(--color-bg-tertiary);color:var(--color-text-primary)}.load-more-btn:disabled{opacity:.5;cursor:not-allowed}.fullscreen-image-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000f2;z-index:1000;display:flex;flex-direction:column;align-items:center;justify-content:center}.fullscreen-controls{position:absolute;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:var(--space-md);padding:var(--space-sm) var(--space-md);background:#000000b3;border-radius:var(--radius-lg);z-index:1001;flex-wrap:nowrap;justify-content:center;height:auto;max-width:90vw}.control-group{display:flex;align-items:center;gap:var(--space-xs)}.control-btn{background:#ffffff1a;border:1px solid rgba(255,255,255,.3);color:#fff;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);cursor:pointer;transition:all .2s;font-size:1.1rem;min-width:40px;text-align:center}.control-btn:hover{background:#fff3;border-color:#ffffff80}.control-btn.small{padding:var(--space-xs);font-size:.9rem;min-width:28px}.control-btn.download{background:var(--color-accent-gradient);border:none}.zoom-level{color:#fff;font-size:.85rem;min-width:50px;text-align:center}.pan-controls{display:flex;flex-direction:row;align-items:center;gap:2px}.pan-row{display:flex;gap:2px}.fullscreen-close-btn{position:absolute;top:var(--space-md);right:var(--space-md);background:#ffffff1a;border:none;color:#fff;font-size:1.5rem;width:44px;height:44px;border-radius:50%;cursor:pointer;z-index:1001;transition:background .2s}.fullscreen-close-btn:hover{background:#ffffff4d}.fullscreen-image-wrapper{max-width:90vw;max-height:80vh;overflow:hidden;display:flex;align-items:center;justify-content:center}.fullscreen-image{max-width:100%;max-height:80vh;object-fit:contain;transition:transform .1s ease-out;-webkit-user-select:none;user-select:none;-webkit-user-drag:none}.image-hint{position:absolute;bottom:var(--space-lg);left:50%;transform:translate(-50%);color:#fff9;font-size:.85rem;text-align:center}@media (max-width: 768px){.pan-controls{display:none}.fullscreen-controls{top:auto;bottom:60px;padding:var(--space-xs) var(--space-sm);gap:var(--space-sm)}.control-btn{padding:var(--space-xs) var(--space-sm);font-size:1rem;min-width:36px}.zoom-level{font-size:.75rem;min-width:40px}}@media (min-width: 769px){.image-hint{display:none}}