:root{--bg-primary: #ffffff;--bg-secondary: #f7f7f7;--bg-tertiary: #e5e5e5;--text-primary: #000000;--text-secondary: #666666;--text-tertiary: #999999;--text-inverse: #ffffff;--time-morning: #a78bfa;--time-work: #22c55e;--time-afternoon: #f59e0b;--time-night: #1e3a8a;--accent-primary: #000000;--border-light: #e5e5e5;--border-medium: #d4d4d4;--status-working: #22c55e;--status-offline: #94a3b8;--font-time: "SF Mono", "Roboto Mono", "Menlo", "Courier New", monospace;--font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", sans-serif;--text-xxl: 4rem;--text-xl: 2.5rem;--text-lg: 1.25rem;--text-md: 1rem;--text-sm: .875rem;--text-xs: .75rem;--space-xs: .5rem;--space-sm: 1rem;--space-md: 1.5rem;--space-lg: 2rem;--space-xl: 3rem;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .07);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-ui);background:var(--bg-primary);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app-container{max-width:1400px;margin:0 auto;padding:var(--space-md);min-height:100vh}.header-section{display:flex;justify-content:space-between;align-items:flex-start;gap:var(--space-md);margin-bottom:var(--space-lg)}.header-actions{display:flex;gap:var(--space-sm);align-items:center}.language-switcher{display:inline-flex;align-items:center;gap:var(--space-xs);padding:var(--space-sm) var(--space-md);background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-medium);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:600;cursor:pointer;transition:all .2s;white-space:nowrap}.language-switcher:hover{background:var(--bg-tertiary);border-color:var(--accent-primary);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.language-switcher:active{transform:translateY(0)}.lang-icon{font-size:18px;line-height:1}.lang-text{font-weight:600}.share-btn{display:inline-flex;align-items:center;gap:var(--space-xs);padding:var(--space-sm) var(--space-md);background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-medium);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:600;cursor:pointer;transition:all .2s;white-space:nowrap}.share-btn:hover:not(:disabled){background:var(--bg-tertiary);border-color:var(--accent-primary);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.share-btn:active:not(:disabled){transform:translateY(0)}.share-btn:disabled{opacity:.5;cursor:not-allowed}.toast{position:fixed;top:var(--space-md);right:var(--space-md);padding:var(--space-md) var(--space-lg);background:var(--bg-primary);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);font-size:var(--text-sm);font-weight:500;z-index:2000;animation:slideIn .3s ease}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.toast-success{border-left:4px solid var(--time-work);color:var(--text-primary)}.toast-error{border-left:4px solid #ef4444;color:#ef4444}.local-time-header{text-align:center;padding:var(--space-xl) 0;border-bottom:1px solid var(--border-light);margin-bottom:var(--space-lg)}.local-time-display{font-family:var(--font-time);font-size:var(--text-xxl);font-weight:600;letter-spacing:-.02em;line-height:1;margin-bottom:var(--space-sm)}.local-time-info{display:flex;align-items:center;justify-content:center;gap:var(--space-md);font-size:var(--text-lg);color:var(--text-secondary)}.local-time-city{font-weight:600;color:var(--text-primary)}.local-time-utc{font-family:var(--font-time);padding:var(--space-xs) var(--space-sm);background:var(--bg-secondary);border-radius:var(--radius-sm)}.cities-container{margin-bottom:var(--space-xl)}.cities-scroll{display:flex;gap:var(--space-md);overflow-x:auto;padding:var(--space-sm) 0;scrollbar-width:thin;scrollbar-color:var(--border-medium) var(--bg-secondary)}.cities-scroll::-webkit-scrollbar{height:8px}.cities-scroll::-webkit-scrollbar-track{background:var(--bg-secondary);border-radius:var(--radius-sm)}.cities-scroll::-webkit-scrollbar-thumb{background:var(--border-medium);border-radius:var(--radius-sm)}.city-card{flex:0 0 280px;padding:var(--space-md);background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-lg);position:relative;transition:all .2s ease}.city-card:hover{border-color:var(--border-medium);box-shadow:var(--shadow-md)}.city-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--space-md)}.city-card-name{font-size:var(--text-lg);font-weight:600;color:var(--text-primary)}.city-card-remove{width:24px;height:24px;display:flex;align-items:center;justify-content:center;border:none;background:var(--bg-secondary);border-radius:var(--radius-sm);cursor:pointer;color:var(--text-secondary);font-size:18px;line-height:1;transition:all .2s}.city-card-remove:hover{background:var(--bg-tertiary);color:var(--text-primary)}.city-card-time{font-family:var(--font-time);font-size:var(--text-xl);font-weight:600;margin-bottom:var(--space-sm)}.city-card-diff{font-size:var(--text-sm);color:var(--text-secondary);margin-bottom:var(--space-sm)}.city-card-status{display:inline-flex;align-items:center;gap:var(--space-xs);padding:var(--space-xs) var(--space-sm);font-size:var(--text-xs);font-weight:500;border-radius:var(--radius-sm)}.city-card-status.working{background:#22c55e1a;color:var(--status-working)}.city-card-status.offline{background:var(--bg-secondary);color:var(--status-offline)}.meeting-visualizer{background:var(--bg-secondary);border-radius:var(--radius-lg);padding:var(--space-lg);margin-bottom:var(--space-xl)}.visualizer-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-md)}.visualizer-title{font-size:var(--text-lg);font-weight:600}.visualizer-subtitle{font-size:var(--text-sm);color:var(--text-secondary)}.timeline-container{position:relative;margin-top:var(--space-md)}.time-axis{display:flex;justify-content:space-between;margin-bottom:var(--space-sm);padding:0 var(--space-xs)}.time-axis-label{font-size:var(--text-xs);color:var(--text-tertiary);font-family:var(--font-time)}.city-timeline{display:flex;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-sm)}.city-timeline-name{flex:0 0 80px;font-size:var(--text-sm);font-weight:500;color:var(--text-secondary)}.city-timeline-bar{flex:1;height:32px;display:flex;border-radius:var(--radius-sm);overflow:hidden;background:var(--bg-tertiary)}.timeline-segment{flex:1;height:100%;transition:all .2s;cursor:pointer}.timeline-segment:hover{opacity:.8}.timeline-segment.working{background:var(--time-work)}.timeline-segment.morning{background:var(--time-morning)}.timeline-segment.afternoon{background:var(--time-afternoon)}.timeline-segment.night{background:var(--time-night)}.timeline-segment.overlap{position:relative;box-shadow:inset 0 0 0 2px var(--accent-primary)}.best-meeting-indicator{margin-top:var(--space-md);padding:var(--space-md);background:#22c55e1a;border:1px solid var(--time-work);border-radius:var(--radius-md)}.best-meeting-label{font-size:var(--text-sm);font-weight:600;color:var(--time-work);margin-bottom:var(--space-xs)}.best-meeting-slots{display:flex;gap:var(--space-sm);flex-wrap:wrap}.meeting-slot{padding:var(--space-xs) var(--space-sm);background:var(--bg-primary);border-radius:var(--radius-sm);font-family:var(--font-time);font-size:var(--text-sm);cursor:pointer;transition:all .2s}.meeting-slot:hover{background:var(--time-work);color:var(--text-inverse)}.add-city-section{display:flex;justify-content:center;padding:var(--space-lg);border-top:1px solid var(--border-light)}.add-city-btn{display:inline-flex;align-items:center;gap:var(--space-sm);padding:var(--space-md) var(--space-lg);background:var(--accent-primary);color:var(--text-inverse);border:none;border-radius:var(--radius-md);font-size:var(--text-md);font-weight:600;cursor:pointer;transition:all .2s}.add-city-btn:hover{opacity:.9;transform:translateY(-1px);box-shadow:var(--shadow-md)}.add-city-btn:active{transform:translateY(0)}@media(max-width:768px){.app-container{padding:var(--space-sm)}.header-section{flex-direction:column;align-items:center;gap:var(--space-sm)}.local-time-header{padding:var(--space-md) 0;text-align:center}.local-time-display{font-size:3rem}.local-time-info{flex-direction:column;gap:var(--space-xs);font-size:var(--text-md)}.city-card{flex:0 0 260px}.city-timeline-name{flex:0 0 60px;font-size:var(--text-xs)}.share-btn{align-self:flex-end}.toast{top:var(--space-sm);right:var(--space-sm);left:var(--space-sm)}}@media(max-width:480px){.local-time-display{font-size:2.5rem}.city-card{flex:0 0 220px}}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:var(--space-md)}.modal-content{background:var(--bg-primary);border-radius:var(--radius-lg);width:100%;max-width:500px;max-height:80vh;display:flex;flex-direction:column;box-shadow:var(--shadow-lg)}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:var(--space-md);border-bottom:1px solid var(--border-light)}.modal-header h2{font-size:var(--text-lg);font-weight:600}.modal-close{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border:none;background:var(--bg-secondary);border-radius:var(--radius-sm);cursor:pointer;font-size:24px;line-height:1;color:var(--text-secondary);transition:all .2s}.modal-close:hover{background:var(--bg-tertiary);color:var(--text-primary)}.city-list{padding:var(--space-md);overflow-y:auto;display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-sm)}.city-list-item{padding:var(--space-md);background:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius-md);cursor:pointer;text-align:left;transition:all .2s}.city-list-item:hover{background:var(--bg-tertiary);border-color:var(--border-medium)}.city-list-name{font-weight:600;color:var(--text-primary);margin-bottom:var(--space-xs)}.city-list-info{font-size:var(--text-sm);color:var(--text-secondary)}.modal-search{padding:var(--space-md);border-bottom:1px solid var(--border-light)}.search-input{width:100%;padding:var(--space-sm) var(--space-md);font-size:var(--text-md);font-family:var(--font-ui);border:1px solid var(--border-medium);border-radius:var(--radius-md);background:var(--bg-secondary);color:var(--text-primary);transition:all .2s;outline:none}.search-input:focus{border-color:var(--accent-primary);background:var(--bg-primary);box-shadow:0 0 0 3px #0000001a}.search-input::placeholder{color:var(--text-tertiary)}.search-result-count{margin-top:var(--space-sm);font-size:var(--text-sm);color:var(--text-secondary);padding:var(--space-xs) 0}.no-results{padding:var(--space-xl);text-align:center;color:var(--text-tertiary);font-size:var(--text-md);grid-column:1 / -1}.date-selector{background:var(--bg-secondary);border-radius:var(--radius-lg);padding:var(--space-md);margin-bottom:var(--space-lg)}.date-display{display:flex;align-items:center;justify-content:center;gap:var(--space-md);margin-bottom:var(--space-md)}.date-nav-btn{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border-medium);background:var(--bg-primary);border-radius:var(--radius-md);cursor:pointer;font-size:24px;color:var(--text-primary);transition:all .2s}.date-nav-btn:hover{background:var(--bg-tertiary);border-color:var(--accent-primary);transform:scale(1.05)}.date-info{display:flex;flex-direction:column;align-items:center;gap:var(--space-xs)}.date-text{font-size:var(--text-lg);font-weight:600;color:var(--text-primary)}.weekday-text{font-size:var(--text-sm);color:var(--text-secondary)}.today-badge{display:inline-block;padding:2px 8px;background:var(--time-work);color:#fff;font-size:var(--text-xs);font-weight:500;border-radius:var(--radius-sm);margin-top:var(--space-xs)}.date-shortcuts{display:flex;justify-content:center;gap:var(--space-sm);margin-bottom:var(--space-md);flex-wrap:wrap}.shortcut-btn{padding:var(--space-xs) var(--space-md);background:var(--bg-primary);color:var(--text-primary);border:1px solid var(--border-medium);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:500;cursor:pointer;transition:all .2s}.shortcut-btn:hover{background:var(--bg-tertiary);border-color:var(--accent-primary);transform:translateY(-1px)}.date-picker-container{display:flex;justify-content:center}.date-picker{padding:var(--space-sm) var(--space-md);font-size:var(--text-md);font-family:var(--font-ui);border:1px solid var(--border-medium);border-radius:var(--radius-md);background:var(--bg-primary);color:var(--text-primary);cursor:pointer;transition:all .2s}.date-picker:hover{border-color:var(--accent-primary)}.date-picker:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px #0000001a}.week-view{background:var(--bg-secondary);border-radius:var(--radius-lg);padding:var(--space-lg);margin-bottom:var(--space-xl)}.week-view-header{margin-bottom:var(--space-md)}.week-view-title{font-size:var(--text-lg);font-weight:600;color:var(--text-primary);margin-bottom:var(--space-xs)}.week-view-subtitle{font-size:var(--text-sm);color:var(--text-secondary)}.week-view-placeholder{text-align:center;padding:var(--space-xl);color:var(--text-secondary)}.week-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:var(--space-md);margin-bottom:var(--space-md)}.week-day{background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:var(--space-md);transition:all .2s}.week-day:hover{border-color:var(--border-medium);box-shadow:var(--shadow-sm)}.week-day.today{border-color:var(--time-work);box-shadow:0 0 0 2px #22c55e33}.week-day.weekend{background:var(--bg-tertiary)}.day-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-sm);gap:var(--space-xs)}.day-date{font-size:var(--text-sm);font-weight:600;color:var(--text-primary)}.recommendation-badge{font-size:18px;line-height:1}.today-badge-small{display:inline-block;padding:2px 6px;background:var(--time-work);color:#fff;font-size:var(--text-xs);font-weight:500;border-radius:var(--radius-sm)}.day-slots{display:flex;flex-direction:column;gap:var(--space-xs)}.day-slot{display:flex;align-items:center;justify-content:space-between;padding:var(--space-xs);background:#22c55e1a;border-radius:var(--radius-sm);font-size:var(--text-xs)}.slot-time{font-family:var(--font-time);font-weight:600;color:var(--time-work)}.slot-duration{color:var(--text-secondary)}.day-no-slots{display:flex;flex-direction:column;align-items:center;gap:var(--space-xs);padding:var(--space-md);color:var(--text-tertiary)}.no-slots-icon{font-size:24px;line-height:1}.no-slots-text{font-size:var(--text-xs);text-align:center}.week-legend{display:flex;justify-content:center;gap:var(--space-lg);padding-top:var(--space-md);border-top:1px solid var(--border-light);flex-wrap:wrap}.legend-item{display:flex;align-items:center;gap:var(--space-xs);font-size:var(--text-sm);color:var(--text-secondary)}.legend-icon{font-size:18px;line-height:1}.legend-text{color:var(--text-secondary)}@media(max-width:768px){.date-selector{padding:var(--space-sm)}.date-display{flex-direction:column;gap:var(--space-sm)}.date-text{font-size:var(--text-md)}.date-shortcuts{gap:var(--space-xs)}.shortcut-btn{font-size:var(--text-xs);padding:var(--space-xs) var(--space-sm)}.week-grid{grid-template-columns:1fr}.week-legend{gap:var(--space-sm)}.legend-item{font-size:var(--text-xs)}}