*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;padding:20px;color:#333}.container{max-width:1400px;margin:0 auto}header{text-align:center;color:#fff;margin-bottom:40px}header h1{font-size:2.5rem;margin-bottom:10px;text-shadow:2px 2px 4px rgba(0,0,0,.2)}header p{font-size:1.1rem;opacity:.9}.card{background:#fff;border-radius:16px;padding:30px;margin-bottom:30px;box-shadow:0 10px 40px #0000001a}.card h2{color:#667eea;margin-bottom:20px;font-size:1.8rem;border-bottom:3px solid #667eea;padding-bottom:10px}.timezone-controls{display:flex;gap:15px;margin-bottom:20px;flex-wrap:wrap;align-items:center}.timezone-select-wrapper{flex:1;min-width:250px;position:relative}.timezone-select{width:100%;padding:12px;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;transition:border-color .3s;background:#fff}.timezone-select:focus{outline:none;border-color:#667eea}.btn-add{background:#667eea;color:#fff;border:none;padding:12px 24px;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s;white-space:nowrap}.btn-add:hover{background:#5568d3;transform:translateY(-2px)}.timezone-columns{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:15px;margin-top:20px}.timezone-column{background:#f8f9fa;border-radius:12px;padding:15px;border:2px solid #e0e0e0;transition:all .3s}.timezone-column:hover{border-color:#667eea;box-shadow:0 4px 12px #667eea33}.timezone-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.timezone-name{font-weight:600;color:#333;font-size:1rem}.timezone-abbr{font-size:.85rem;color:#666;margin-top:2px}.btn-remove{background:#ff6b6b;color:#fff;border:none;width:28px;height:28px;border-radius:50%;cursor:pointer;font-size:1.2rem;line-height:1;transition:all .2s;display:flex;align-items:center;justify-content:center}.btn-remove:hover{background:#ee5a5a;transform:scale(1.1)}.time-display{text-align:center;margin-bottom:15px}.time-large{font-size:2rem;font-weight:700;color:#667eea;margin-bottom:5px}.date-display{font-size:.9rem;color:#666}.timeline-container{margin-top:20px;padding:15px;background:#fff;border-radius:8px}.timeline-header{display:flex;justify-content:space-between;margin-bottom:10px;font-size:.85rem;color:#666}.timeline{display:grid;grid-template-columns:repeat(24,1fr);gap:2px;height:60px;position:relative}.hour-block{background:#e0e0e0;border-radius:4px;position:relative;transition:all .2s}.hour-block.night{background:#2c3e50}.hour-block.current{background:#667eea;box-shadow:0 0 8px #667eea80;z-index:10}.hour-block.work-hours{background:#4ecdc4;opacity:.6}.hour-label{position:absolute;top:-20px;left:50%;transform:translate(-50%);font-size:.7rem;color:#666;white-space:nowrap}.current-time-indicator{position:absolute;top:-5px;width:2px;height:70px;background:#ff6b6b;z-index:20;box-shadow:0 0 4px #ff6b6bcc}.comparison-view{margin-top:30px}.comparison-scroll-container{overflow-x:auto;overflow-y:hidden;width:100%;margin-top:10px;padding-bottom:10px;scroll-behavior:smooth;max-height:600px;position:relative}.comparison-scroll-container::-webkit-scrollbar{height:8px}.comparison-scroll-container::-webkit-scrollbar-track{background:#f1f1f1;border-radius:4px}.comparison-scroll-container::-webkit-scrollbar-thumb{background:#667eea;border-radius:4px}.comparison-scroll-container::-webkit-scrollbar-thumb:hover{background:#5568d3}.comparison-timeline{display:grid;grid-template-columns:200px repeat(24,60px);gap:2px;min-width:max-content}.time-label{padding:10px;background:#f8f9fa;border-radius:4px;font-weight:600;text-align:center;font-size:.9rem}.timezone-row{display:contents}.timezone-row-label{padding:10px;background:#f8f9fa;border-radius:4px;font-weight:600;display:flex;align-items:center;font-size:.9rem;position:sticky;left:0;z-index:10;box-shadow:2px 0 4px #0000001a;min-width:200px;max-width:200px;width:200px;flex-shrink:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.time-label:first-child{position:sticky;left:0;z-index:10;box-shadow:2px 0 4px #0000001a;min-width:200px;max-width:200px;width:200px;flex-shrink:0}.hour-cell{background:#e0e0e0;border-radius:4px;min-height:40px;min-width:60px;max-width:60px;position:relative;transition:all .2s}.time-label:not(:first-child){min-width:60px;max-width:60px}.hour-cell.night{background:#2c3e50}.hour-cell.current{background:#667eea;box-shadow:0 0 8px #667eea80}.hour-cell.work-hours{background:#4ecdc4;opacity:.6}.ad-container{margin:20px 0;text-align:center;min-height:100px;display:flex;justify-content:center;align-items:center}.ad-container.horizontal{width:100%;max-width:728px;margin:20px auto}.ad-container.responsive{width:100%}.info-box{background:#e7f3ff;border-left:4px solid #0d6efd;padding:15px;border-radius:8px;margin-top:20px;font-size:.9rem}.info-box h4{color:#0d6efd;margin-bottom:10px}.empty-state{text-align:center;padding:40px;color:#999}@media(max-width:768px){header h1{font-size:2rem}.timezone-columns{grid-template-columns:1fr}.comparison-timeline{grid-template-columns:60px repeat(24,1fr);font-size:.75rem}.time-large{font-size:1.5rem}}